From 87763c93b3b5ad16665e32c999f89122813e8818 Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 14:06:42 +0000 Subject: [PATCH 01/79] docs(marmot): map our MIP-era implementation onto the adopted spec MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Marmot deprecated the MIP documents on 2026-07-02 and MDK followed. Our implementation still targets MIP-00..MIP-05, so it is no longer a valid Marmot client under either profile the current spec defines. The decisive break is identity. MDK classifies a group as Legacy or Current purely by RequiredCapabilities: legacy requires MLS extension 0xf2f1 (account-identity-proof v1), current requires app component 0x8009 (account-identity-proof v2). We require neither, so protocol_profile_of_group_extensions errors out before any component check runs. We never implemented an account identity proof at all. Records what changed upstream, what that costs us surface by surface (app_data_dictionary components replacing marmot_group_data, convergence replacing the timestamp+event-id tiebreak, NIP-65 replacing kind 10051, group disbanding, the durability contract), and stages the work. Also notes that whitenoise-rs — the reference our interop harness clones — was archived on 2026-08-05 and moved into mdk. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- quartz/plans/2026-09-08-marmot-spec-resync.md | 303 ++++++++++++++++++ quartz/plans/README.md | 3 +- 2 files changed, 305 insertions(+), 1 deletion(-) create mode 100644 quartz/plans/2026-09-08-marmot-spec-resync.md diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md new file mode 100644 index 0000000000..ab217c1081 --- /dev/null +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -0,0 +1,303 @@ +# Marmot: resync against the adopted spec and current MDK + +Status: analysis + staged plan. Nothing implemented yet. + +Sources checked on 2026-09-08: + +- `marmot-protocol/marmot` @ `4a2bc65` ("Specify durability and restart contract", 2026-08-13) +- `marmot-protocol/mdk` @ `ef73de5` (2026-09-08), released tag `v0.9.19` (2026-09-07) +- `marmot-protocol/whitenoise-rs` @ `95fa0b8` (2026-08-05) — **archived/obsolete** + +## 1. Executive summary + +Our Marmot implementation targets the **MIP-era protocol** (MIP-00…MIP-05), which upstream +deprecated on **2026-07-02** when the "v2" spec was imported and marked adopted. Everything +we ship — `MarmotGroupData` (extension `0xF2EE`), the timestamp+event-id commit tiebreak, +the kind `10051` KeyPackage relay list, the `encoding` tag — is either superseded or now +explicitly forbidden. + +The single hardest break: **current MDK rejects our groups outright.** MDK classifies a group +as `Legacy` or `Current` by looking at `RequiredCapabilities`: + +- `Legacy` ⇔ requires MLS extension `0xf2f1` (`marmot.account-identity-proof.v1`) +- `Current` ⇔ requires app component `0x8009` (`marmot.member.account-identity-proof.v2`) + +We require neither — our groups only require `0xF2EE`. MDK's +`protocol_profile_of_group_extensions` (`crates/cgka-engine/src/account_identity_proof.rs:509`) +returns an error for `(false, false)`: + +> "group requires neither legacy proof extension 0xf2f1 nor current proof component 0x8009" + +We never implemented the account identity proof at all (`grep -ri f2f1 --include=*.kt` finds +nothing). So we are not even a valid *legacy* Marmot client by the spec's own definition — +`foundation/account-identity-proof-v1.md` says "a member without a valid v1 proof is not a +valid v1 member." + +This is not a patch-up job. Reaching the current profile means implementing the MLS +extensions draft (`app_data_dictionary`, `app_components`, `app_data_update`) inside our +from-scratch Kotlin MLS stack, plus a convergence engine and a group lifecycle state machine +we have no equivalent of. + +## 2. Verdict on the Bitcoin++ Insider draft + +The draft is a **technically accurate** description of the current spec. Every checkable +protocol claim in it holds up against `protocol-core/convergence.md` and MDK's source: + +| Draft claim | Verified against | +| --- | --- | +| Five-commit rewind horizon | `max_rewind_commits = 5`; `V1_MAX_REWIND_COMMITS` in `crates/cgka-engine/src/convergence.rs:14` | +| 1s quiescence / 5s absolute pass deadline | `settlement_quiescence_ms = 1000`, `max_convergence_pass_ms = 5000`; `crates/cgka-engine/src/canonicalization.rs:23,25` | +| Witness quorum = 2 distinct senders on ≥1 epoch, boost capped at 1 commit | `witness_quorum_senders_per_epoch = 2`, `witness_quorum_epochs = 1`, `max_witness_override_depth = 1` | +| "3-commit branch with quorum ties a 4-commit branch, then wins the next comparison" | selection step 1 (`effective_commit_depth`) then step 2 (quorum beats no-quorum) | +| Tiebreak chain ends at tip priority → committer → digest of commit bytes | `convergence.md` "Branch selection" steps 4–6 | +| Parentage from MLS replay, never relay metadata | `convergence.md` "Candidate branches" | +| Publish-before-advancing, ack from ≥1 endpoint in recipient scope | `protocol-core/publish-lifecycle.md` "Publish obligation" | +| Earlier implementations broke same-epoch ties on outer Nostr timestamp + event id | exactly our `mip03GroupMessages/CommitOrdering.kt:37-40` | +| Conformance simulator drives the production-shaped Nostr peeler | `crates/cgka-conformance-simulator/` + `crates/transport-nostr-peeler/` both exist | + +**One substantive error.** The draft says: *"If effective depth ties, the selector compares +quorum status, raw commit depth, accumulated witness score, …"*. The spec explicitly rules +out a raw-depth step: + +> `raw_commit_depth` has no separate comparison step. It is already part of +> `effective_commit_depth`; if effective depth and witness-quorum status are both tied, a +> further raw-depth comparison is necessarily tied as well. + +Harmless for the narrative, wrong if someone implements from the article. + +**Claims we could not verify here** (no non-GitHub network): the White Noise release +versions, the `fips.network` research status, and the downstream apps (Tubestr, AgentNoise, +Burrow, Botburrow). The draft's own editorial hold flags most of these as TODO anyway. + +**What the draft is missing for us** — and this is why it reads as vague: it describes the +convergence *policy* but not the surrounding breaking changes that actually dominate our +workload. It never mentions that `marmot_group_data` was dissolved into `app_data_dictionary` +components, that the account identity proof moved from extension `0xf2f1` to component +`0x8009`, that KeyPackage relay discovery moved from kind `10051` to NIP-65 kind `10002`, or +that group disbanding (`marmot.group.lifecycle.v1`) was added. Those are the real work. + +## 3. Upstream changelog since our implementation was written + +### 3a. The structural break (2026-07-02) + +The MIP documents were deprecated wholesale. `mip-coverage.md` is now only a historical map. +The spec is reorganized into `foundation/`, `protocol-core/`, `app-components/`, +`transports/`, `features/`. + +**MIP-01's monolithic `marmot_group_data` (`0xF2EE`) was split into app components** carried +in the MLS `app_data_dictionary` extension (`0x0006`, draft-ietf-mls-extensions-10), mutated +via the `app_data_update` proposal (`0x0008`): + +| MIP-era field of `MarmotGroupData` | New owner | +| --- | --- | +| `name`, `description` | `0x8001` `marmot.group.profile.v1` | +| `admin_pubkeys` | `0x8003` `marmot.group.admin-policy.v1` | +| `nostr_group_id`, `relays` | `0x8004` `marmot.transport.nostr.routing.v1` | +| `image_*` | `0x8002` `marmot.group.blossom.image.v1` | +| `disappearing_message_secs` | `0x8005` `marmot.group.message-retention.v1` | + +Plus components with no MIP-era equivalent: `0x8007` avatar-url, `0x8008`/`0x800b` +encrypted-media v1/v2, `0x8009` account-identity-proof v2, `0x800c` group-lifecycle, +`0x8006` agent-text-stream, `0x800a` multi-device-join (draft). + +### 3b. Spec commits after adoption + +- `2026-07-03` Align admin-policy, membership, and role-change invariants +- `2026-07-05` Tighten wire-boundary validation rules (tag cardinality, pre-peel validation) +- `2026-07-23` Resolve the spec issue sweep +- `2026-07-23` Specify push owner proof signing (kind `451`) +- `2026-07-28` **Specify terminal MLS group disbanding** (`marmot.group.lifecycle.v1`, `Disbanded` state) +- `2026-07-30` **Define convergence assurance contract** (`protocol-core/convergence.md` as it stands) +- `2026-08-13` **Specify durability and restart contract** (`protocol-core/durability.md`) + +### 3c. MDK + +MDK is a different codebase from the `mdk-core` we were byte-matching. It is now a +20+ crate workspace at `v0.9.19`, on a fork of OpenMLS `0.8.1` +(`erskingardner/openmls` @ `59e7d3b`) built with the `extensions-draft` feature. + +**`whitenoise-rs` is archived** (obsolescence warning added 2026-08-05, pinned at +`mdk-core 0.8.0`). The `wn` / `wnd` binaries our interop harness drives now live in +`mdk/crates/cli`. Our `cli/tests/marmot/marmot-interop.sh:101` still clones the dead repo. + +## 4. Gap analysis + +Legend: **BLOCKER** = breaks interop today · **BREAK** = wire-visible divergence · +**GAP** = required behavior we don't implement. + +### 4.1 Identity — BLOCKER + +We have no account identity proof of any kind. Both profiles require one. + +- v1 (`0xf2f1`): BIP-340 Schnorr over a domain-separated preimage, in LeafNode extensions, + required in `RequiredCapabilities`. Test vector in `foundation/account-identity-proof-v1.md`. +- v2 (`0x8009`): `MarmotAuthorizationProof` (104 bytes: `signer_pubkey[32] || created_at:u64 + || signature[64]`) in the LeafNode `app_data_dictionary`, signing a synthetic **kind 450** + NIP-01 event. Test vector in `app-components/account-identity-proof-v2.md`. + +Ours: nothing. `KeyPackageRotationManager.kt:528` advertises `0xF2EE, 0x000A` only. + +### 4.2 Group state carrier — BLOCKER + +`quartz/.../mip01Groups/MarmotGroupData.kt` (TLS struct under extension `0xF2EE`) has no +counterpart in the current profile. Needs: `AppDataDictionary` / `ComponentData` codecs, the +`app_components` (`0x0001`) and `safe_aad` (`0x0002`) upstream components, the +`AppDataUpdate` proposal (`0x0008`), and per-component encode/decode/validate/authorize for +`0x8001`–`0x800c`. + +Our `Proposal.kt` has Add/Update/Remove/SelfRemove/GroupContextExtensions/Psk/ReInit/ +ExternalInit — no `AppDataUpdate`, no `AppEphemeral`. + +Blast radius of `MarmotGroupData`: 22 files across `quartz`, `commons`, `amethyst`, `cli`. + +### 4.3 Convergence — GAP (the article's subject) + +We have none of it. `CommitOrdering.kt` implements the superseded rule (lowest `created_at`, +then lowest Nostr event id) and is wired into `MarmotInboundProcessor.kt:523` as a +per-`(group, epoch)` bucket. The spec now forbids using transport arrival order, transport +timestamps, or outer event ids in branch selection at all. + +Missing, all of `protocol-core/convergence.md`: + +- bounded pass scheduler with `pass_base_epoch` snapshot, 1s quiescence / 5s hard deadline, + frozen input batch, `Syncing`/`Resolving`/`Settled`/`Blocked` status; +- candidate-graph construction by MLS replay from retained states; deferred-commit handling + with epoch-based expiry (`canonical_tip_epoch - commit_source_epoch > 5`); +- eligibility on `pass_base_epoch - fork_epoch <= 5`; +- app-payload witnesses counted by distinct Marmot account per branch epoch, capped; +- the six-step branch comparison; +- disposition assignment (`accepted`/`deferred`/`stale`/`invalidated`/`BeyondAnchor`) and the + withdrawal of app payloads and state notifications from losing branches; +- the fair-scheduling preparation opportunity for a queued admin intent. + +### 4.4 Group lifecycle state machine — GAP + +`protocol-core/group-state.md` defines six states (`Stable`, `PendingPublish`, `Merging`, +`Recovering`, `Unrecoverable`, `Disbanded`) plus local gates (`Leaving`, `Disbanding`, +realized-removal). We have no explicit state machine; publish-before-apply exists only as an +ad-hoc `awaitCommitAck` in `MarmotWelcomeSender.kt`. + +### 4.5 Durability / restart — GAP + +`protocol-core/durability.md` + `foundation/conformance.md` §"Crash and restart scenarios" +define nine restart boundaries (prepared-not-published, ack-uncertain, confirmed-not-applied, +observer-atomic apply, frozen-batch abandonment, …). We have `MarmotManagerRestoreTest` and +nothing resembling this contract. + +### 4.6 Nostr transport — BREAK + +| Rule (`transports/nostr.md`) | Ours | +| --- | --- | +| KeyPackage relays come from **NIP-65 kind 10002 write-capable** entries; "there is no dedicated KeyPackage relay list" | we implement kind **10051** `KeyPackageRelayListEvent` and `MarmotSyncPolicy.Relays.keyPackageRelays()` | +| Sender **MUST NOT** add an `encoding` tag; receiver MUST NOT switch decoders on one | `KeyPackageEvent.build()` emits `encoding` (`tags/EncodingTag.kt`) | +| Kind 30443 tag set is `d`, `mls_protocol_version`, `i`, `mls_ciphersuite`, `mls_extensions`, `mls_proposals`, `app_components`; KeyPackage events do **not** repeat relays | we emit `relays` and no `app_components` | +| `app_components` MUST include `0x8009` | absent | +| `mls_extensions` should carry the profile's extensions (`0x0006` current / `0xf2f1` legacy) | we emit `0xf2ee`, `0x000a` | +| Last-resort is the empty-data `last_resort_key_package` **component `0x0004`** in the KeyPackage-level dictionary, *not* an extension type | we treat `0x000a` as a last-resort extension (`tags/MlsProposalsTag.kt:30`) | +| Dedup id is defined over recovered **MLS message bytes**, never the Nostr event id | `MarmotInboundProcessor` dedups on `processedEventIds` (Nostr ids) | +| Outer decryption tries the bounded retained-candidate key set (canonical epoch, retained epochs in horizon, staged local commit) | single-epoch decrypt | +| KeyPackage `Lifetime` MUST exist, be current, and span ≤ 7,261,200 s | `KEY_PACKAGE_LIFETIME_SECONDS` set but no upper-bound validation on inbound | +| Kind 445 may carry only `h` and NIP-40 `expiration`; commits/proposals MUST NOT carry `expiration` | builder is clean; the commit/proposal exclusion is unverified | + +### 4.7 Group image — BREAK + +`app-components/group-blossom-image-v1.md` now specifies: + +- `image_key` is **the ChaCha20-Poly1305 key**, `image_upload_key` is **the Nostr secret key** + — ours are HKDF *seeds* (`MarmotGroupData.kt:91,96`); +- AAD is `"marmot-group-image-v1" || 0x00 || canonical_media_type` — ours is empty + (`MarmotGroupImageCipher.kt:50,58`); +- a `media_type<0..128>` field exists — we deliberately omitted it to avoid trailing bytes for + old mdk-core. + +### 4.8 App payloads — GAP + +`foundation/application-messages.md` + `registries.md` assign inner kinds we don't handle: +`9` default chat, **`1009` message edit**, **`1210` group system event**, `1200` agent stream +start. `grep 1210\|1009` over our marmot tree: no hits. Receiver authentication (inner +`pubkey` == MLS-authenticated account) we do have (`MarmotInboundProcessor.kt:438`). + +### 4.9 Encrypted media — BREAK + +We implement the MIP-04 scheme (`mip04EncryptedMedia/`). Current is +`0x800b marmot.group.encrypted-media.v2` with a policy component +(`media_format = "encrypted-media-v2"`, `allowed_locator_kinds`, `default_blob_endpoints`); +`0x8008` v1 is frozen. Our `Mip04ParseResult.DeprecatedV1` path suggests we're on the v1 +lineage. + +### 4.10 Push notifications — GAP + +Kinds 446–449 exist for us. Missing: the kind `451` push **owner proof** (spec'd 2026-07-23) +and the token-record `relay_hint` publish-target rules. + +### 4.11 Test/interop infrastructure — BLOCKER for verification + +- `cli/tests/marmot/marmot-interop.sh:101` clones the archived `whitenoise-rs`. The `wn`/`wnd` + binaries moved to `mdk/crates/cli`. +- `quartz/tools/mdk-vector-gen` pins plain openmls 0.8; MDK now uses the `extensions-draft` + fork. Regenerating against the fork is what gives us `app_data_dictionary` fixtures. +- Our MIP tests (`MarmotMipComplianceTest`, `MarmotMipBehaviorTest`) assert the deprecated + rules — e.g. `MarmotMipBehaviorTest.kt:793` asserts `RequiredCapabilities == [0xF2EE]`. + They pin us to the old profile and must be re-pointed, not deleted (the legacy bytes still + matter for reading our own stored groups). + +## 5. Interop verdict today + +- **Against current MDK / White Noise: broken.** Our groups fail profile classification + before any component check. Our KeyPackages carry no `0x8009` data and no `app_components` + tag, and carry a forbidden `encoding` tag. +- **Against old `mdk-core` 0.8 (archived White Noise): probably still fine**, which is what + our fixtures prove — and that's now a dead target. +- **Our own groups still work with our own clients.** Nothing here is urgent for + Amethyst-to-Amethyst Marmot chat; it is urgent for cross-client chat. + +## 6. Proposed staging + +Each stage is independently shippable and independently testable. + +**Stage 0 — re-establish a live reference (small).** +Repoint `marmot-interop.sh` at `marmot-protocol/mdk` and its `wn`/`wnd`; regenerate +`mdk-vector-gen` against the `erskingardner/openmls` `extensions-draft` fork. Without this we +are guessing at bytes. Do this first regardless of what else gets scoped. + +**Stage 1 — MLS extensions draft in Quartz (large, foundational).** +`AppDataDictionary` / `ComponentData` TLS codecs; `app_components` (`0x0001`) and `safe_aad` +(`0x0002`); `AppDataUpdate` proposal (`0x0008`) through `MlsGroup` staging/validation; +last-resort as KeyPackage component `0x0004`. Everything else depends on this. + +**Stage 2 — account identity proof v2 (`0x8009`).** +`MarmotAuthorizationProof` codec, kind-450 signing template, BIP-340 verify, LeafNode/ +KeyPackage validation, capability advertisement. Ships with the spec's published test vector, +so it can be built and verified before Stage 1 lands. This is what makes us classifiable at +all. + +**Stage 3 — split `MarmotGroupData` into components.** +`0x8001` profile, `0x8003` admin-policy, `0x8004` nostr-routing, `0x8002` blossom-image +(with the new key semantics + `media_type` + domain-separated AAD), `0x8005` +message-retention, `0x800c` lifecycle. Keep the `0xF2EE` decoder as a read-only legacy path +for groups already on disk. + +**Stage 4 — Nostr transport corrections.** +Drop kind 10051 in favor of NIP-65 write relays; drop the `encoding` and `relays` tags from +30443; add `app_components`; MLS-bytes dedup id; bounded retained-candidate trial decryption; +KeyPackage lifetime bound. + +**Stage 5 — lifecycle state machine + publish-before-apply.** +The six canonical states, the `Leaving` / `Disbanding` gates, and the publish-obligation +record (bytes + recipient scope + prior state + pending state) surviving restart. + +**Stage 6 — convergence engine.** +Bounded passes, candidate graph, eligibility, witnesses, six-step selection, dispositions and +withdrawal. Delete `CommitOrdering`'s transport-metadata tiebreak at this point, not before. + +**Stage 7 — durability/restart conformance, app payload kinds (1009/1210), encrypted-media +v2, push owner proof.** + +### Open question for scoping + +Stages 1–6 are a protocol rewrite, not a patch. The alternative worth naming: our Kotlin MLS +stack is ~7,900 lines and now has to chase a moving IETF draft that upstream tracks via a +fork of OpenMLS. If cross-client Marmot interop is a hard requirement, it may be cheaper to +decide *now* whether Quartz keeps its own MLS or binds MDK (which ships `marmot-c` and +`marmot-uniffi`) on Android/JVM. MDK is MIT, so licensing is clear; the cost is JNI/uniffi packaging per +target and losing our pure-Kotlin iOS/Linux reach. diff --git a/quartz/plans/README.md b/quartz/plans/README.md index f75c446e10..8016c5c8fd 100644 --- a/quartz/plans/README.md +++ b/quartz/plans/README.md @@ -1,6 +1,6 @@ # quartz plans -_Audited 2026-06-30. 11 plans: 7 shipped (archived), 0 in-progress, 3 queued, 1 closed (negative result)._ +_Audited 2026-09-08. 12 plans: 7 shipped (archived), 0 in-progress, 4 queued, 1 closed (negative result)._ ## Queued | Plan | Summary | @@ -10,6 +10,7 @@ _Audited 2026-06-30. 11 plans: 7 shipped (archived), 0 in-progress, 3 queued, 1 | [2026-07-03-incremental-negentropy-storage.md](2026-07-03-incremental-negentropy-storage.md) | Always-current (created_at, id) index so cold NEG-OPENs stop paying a full scan + seal (~340 ms at 50k vs strfry's ~21 ms). | | [2026-07-04-small-req-floor.md](2026-07-04-small-req-floor.md) | Small-REQ dispatch floor: decomposed, inline fast path tried and reverted (no wire-level win); floor is transport-side. | | [2026-08-13-gpu-pow-mining.md](2026-08-13-gpu-pow-mining.md) | GPU NIP-13 mining declined (ARMv8 has SHA-256 in silicon, mobile GPUs do not). Midstate is ~3x on JVM targets; Android hinges on Conscrypt per-digest JNI cost, still unmeasured. created_at refresh while mining shipped. | +| [2026-09-08-marmot-spec-resync.md](2026-09-08-marmot-spec-resync.md) | Marmot moved off the MIP-era spec (2026-07-02): group state split into `app_data_dictionary` components, account identity proof v2, and a convergence engine. Current MDK rejects our groups outright. Gap analysis + 8-stage plan. | ## Archived (shipped) | Plan | Summary | From c90851610a89afb3dea1cd0ea66123f3d7cc18d7 Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 14:42:35 +0000 Subject: [PATCH 02/79] test(marmot): point the interop reference at mdk and generate current-profile vectors MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Stage 0 of the Marmot resync: get a live reference back, so the later stages are written against real bytes instead of a careful reading of the spec. The vector generator pinned stock crates.io openmls 0.8. MDK builds against erskingardner/openmls with the `extensions-draft` feature, and the whole current Marmot profile is expressed in terms of what that feature adds — app_data_dictionary (0x0006), app_components (0x0001), safe_aad (0x0002), app_data_update (0x0008). Vectors from the published crate cannot reach any of it. Pinned to MDK's exact rev instead. Adds `marmot-profile-gen`, which builds a group the way cgka-engine does: required capabilities of extension 0x0006 plus proposal 0x0008; GroupContext dictionary carrying the required-component list, group profile, admin policy, Nostr routing and lifecycle; per-leaf dictionaries carrying the supported list, an empty safe_aad list and the 104-byte account-identity-proof v2 component; last resort as the empty-data 0x0004 component in the KeyPackage dictionary, not an extension type; PublicMessage handshakes. It emits the Add commit, the Welcome, and exporter KATs for both group-event and the conformance commitment. The identity-proof encoder is hand-rolled from the spec rather than lifted from MDK, and asserts itself against the fixture published in account-identity-proof-v2.md before emitting anything — so if the generator runs at all, the kind-450 canonical serialization, its id, the BIP-340 signature and the component layout are known to match. The interop harness cloned marmot-protocol/whitenoise-rs, which was archived on 2026-08-05 pinned to mdk-core 0.8.0: it was testing us against a frozen MIP-era client, which is part of how the drift went unnoticed. Repointed at marmot-protocol/mdk, building -p wn-cli. Both source patches are dropped — mock-keyring is replaced by MDK's native --secret-store file, and skip-unprocessable-retry targeted a path MDK does not have. The daemon socket is now pinned via wnd --socket rather than guessed from a derived default. The harness changes are read off MDK's DaemonArgs and wn-cli manifest, not off a passing run; building MDK's workspace needs its pinned toolchain and a local relay. A human run of marmot-interop-headless.sh is the acceptance test. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .github/PULL_REQUEST_TEMPLATE.md | 2 +- cli/tests/README.md | 34 +- cli/tests/marmot/marmot-interop-headless.sh | 8 +- cli/tests/marmot/marmot-interop.sh | 52 +- .../patches/whitenoise-mock-keyring.patch | 17 - .../whitenoise-skip-unprocessable-retry.patch | 26 - cli/tests/marmot/setup.sh | 105 ++-- quartz/plans/2026-09-08-marmot-spec-resync.md | 66 +- quartz/plans/README.md | 2 +- .../resources/mls/marmot-current-profile.json | 116 ++++ quartz/tools/mdk-vector-gen/Cargo.toml | 24 +- quartz/tools/mdk-vector-gen/README.md | 97 ++- .../mdk-vector-gen/src/emit_joiner_kp.rs | 2 +- quartz/tools/mdk-vector-gen/src/main.rs | 18 +- .../mdk-vector-gen/src/marmot_profile_gen.rs | 577 ++++++++++++++++++ .../mdk-vector-gen/src/verify_amethyst.rs | 2 +- 16 files changed, 934 insertions(+), 214 deletions(-) delete mode 100644 cli/tests/marmot/patches/whitenoise-mock-keyring.patch delete mode 100644 cli/tests/marmot/patches/whitenoise-skip-unprocessable-retry.patch create mode 100644 quartz/src/commonTest/resources/mls/marmot-current-profile.json create mode 100644 quartz/tools/mdk-vector-gen/src/marmot_profile_gen.rs diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md index d7a136344b..835ebef259 100644 --- a/.github/PULL_REQUEST_TEMPLATE.md +++ b/.github/PULL_REQUEST_TEMPLATE.md @@ -40,7 +40,7 @@ locally and tick the box. If your change can't possibly affect them (docs-only, UI-only on unrelated screens, etc.), tick "N/A". --> - [ ] N/A — change can't affect wire bytes / decoded audio / MLS state / DM envelopes -- [ ] Marmot / MLS — `cli/tests/marmot/marmot-interop-headless.sh` (NIP-EE / `whitenoise-rs`) +- [ ] Marmot / MLS — `cli/tests/marmot/marmot-interop-headless.sh` (Marmot / MDK `wn`) - [ ] NIP-17 DM — `cli/tests/dm/dm-interop-headless.sh` - [ ] Audio rooms manual — `cli/tests/nests/nests-interop.sh` (Amethyst ↔ nostrnests.com) - [ ] MoQ-lite hang-tier — `:nestsClient:jvmTest -DnestsHangInterop=true` diff --git a/cli/tests/README.md b/cli/tests/README.md index 19d9098f1f..564f899a53 100644 --- a/cli/tests/README.md +++ b/cli/tests/README.md @@ -28,7 +28,6 @@ cli/tests/ │ ├── tests-create.sh # tests 01–05 │ ├── tests-manage.sh # tests 06–08, 11 │ ├── tests-extras.sh # tests 09, 10, 12, 13 -│ └── patches/ # whitenoise-rs harness patches ├── nests/ # Audio-rooms interop (Amethyst ↔ nostrnests.com) │ ├── nests-interop.sh # 47-test manual harness │ └── README.md # operator brief + per-test matrix @@ -96,7 +95,7 @@ A third, slimmer harness covers the NIP-17 DM surface: - **`dm/dm-interop-headless.sh`** — two `amy` processes (Identity A and Identity D) exchange NIP-17 DMs through the loopback nostr-rs-relay. - No whitenoise-rs required — only `amy` and the relay binary (which + No MDK required — only `amy` and the relay binary (which is shared with the Marmot harness's checkout at `marmot/state-headless/nostr-rs-relay/`). @@ -123,11 +122,17 @@ A fourth harness covers audio rooms (NIP-53 + moq-lite): background audio. See `nests/README.md` for the full matrix and prereqs. -Both Marmot harnesses validate Amethyst against **whitenoise-rs** -(https://github.com/marmot-protocol/whitenoise-rs), the reference Rust -implementation that powers the White Noise Flutter app. Every test records a -pass/fail/skip result into a tab-separated log, and the summary is printed at -the end of the run. +Both Marmot harnesses validate Amethyst against **MDK** +(https://github.com/marmot-protocol/mdk), the reference Rust implementation of +the Marmot protocol, via its `wn` / `wnd` binaries (the `wn-cli` package). +Every test records a pass/fail/skip result into a tab-separated log, and the +summary is printed at the end of the run. + +> These harnesses previously targeted `marmot-protocol/whitenoise-rs`, which was +> archived on 2026-08-05 pinned to `mdk-core 0.8.0`. Testing against it meant +> testing against a frozen MIP-era client. The reference moved into `mdk`, and +> so did we — see `quartz/plans/2026-09-08-marmot-spec-resync.md` for what that +> change exposed. ## What gets tested @@ -197,9 +202,10 @@ cd tools/marmot-interop The script will, in order: 1. Verify `jq`, `git`, `cargo` etc. are present. -2. Clone `whitenoise-rs` into `state/whitenoise-rs/` and build `wn`/`wnd` - (release, `--features cli`). First build takes ~5 minutes; subsequent runs - reuse the binaries. +2. Clone `mdk` into `state/mdk/` and build `wn`/`wnd` + (`cargo build --release -p wn-cli`). First build takes ~5 minutes; + subsequent runs reuse the binaries. MDK pins its own Rust toolchain in + `rust-toolchain.toml`, so rustup may fetch a toolchain on the first run. 3. Launch two `wnd` daemons (one for Identity B, one for Identity C). 4. Create Nostr identities for B and C, persist their npubs in `state/run.env`. 5. Ask you to paste **your Amethyst account npub** (Identity A). This is @@ -219,7 +225,7 @@ The script will, in order: ``` --local-relays Use ws://localhost:8080 instead of the default public relays. Required if the public relays reject kinds 444/445/30443. - Run 'just docker-up' inside whitenoise-rs first. + Run 'just docker-up' inside the mdk checkout first. --transponder Run Test 14 (push notifications via the transponder service). --no-build Fail instead of rebuilding wn/wnd. Useful when iterating. -h, --help Show help. @@ -228,7 +234,7 @@ The script will, in order: Environment overrides: ``` -WN_REPO=/some/path/whitenoise-rs # use an existing checkout +WN_REPO=/some/path/mdk # use an existing checkout ``` ## Default relays @@ -245,7 +251,7 @@ that B just published — the harness warns you and continues. In that case re-run with `--local-relays` after starting the Docker stack: ```bash -cd state/whitenoise-rs +cd state/mdk just docker-up cd ../.. ./marmot-interop.sh --local-relays @@ -324,6 +330,6 @@ for B/C if this matters to you. - `marmot-interop.sh` — main entry point; orchestrates preflight, daemons, identities, relays, and runs the 13 tests in sequence. - `lib.sh` — helpers (logging, prompts, polling, jq wrappers, result table). -- `state/` — runtime directory, gitignored. Contains `whitenoise-rs/` source +- `state/` — runtime directory, gitignored. Contains the `mdk/` source checkout, per-daemon data/log dirs, the session `run.env`, logs, and results TSVs. diff --git a/cli/tests/marmot/marmot-interop-headless.sh b/cli/tests/marmot/marmot-interop-headless.sh index 15a49f79a2..59bd501fa3 100755 --- a/cli/tests/marmot/marmot-interop-headless.sh +++ b/cli/tests/marmot/marmot-interop-headless.sh @@ -3,7 +3,7 @@ # marmot-interop-headless.sh — zero-prompt, zero-internet interop harness. # # Drives Identity A via the `amy` CLI (./gradlew :cli:installDist) and -# Identities B/C via whitenoise-rs `wn`/`wnd`. Spins up a local +# Identities B/C via MDK's `wn`/`wnd`. Spins up a local # nostr-rs-relay on ws://127.0.0.1:$RELAY_PORT so nothing ever leaves the # machine. Matches the 13 test scenarios in marmot-interop.sh but without # any human prompts — all checks run to completion and the exit code @@ -24,14 +24,14 @@ LOG_DIR="$STATE_DIR/logs" A_DIR="$STATE_DIR/.amy/A" B_DIR="$STATE_DIR/B" C_DIR="$STATE_DIR/C" -B_SOCKET="$B_DIR/release/wnd.sock" -C_SOCKET="$C_DIR/release/wnd.sock" +B_SOCKET="$B_DIR/wnd.sock" +C_SOCKET="$C_DIR/wnd.sock" RUN_TS="$(date +%Y%m%d-%H%M%S)" LOG_FILE="$LOG_DIR/run-$RUN_TS.log" RESULTS_FILE="$STATE_DIR/results-$RUN_TS.tsv" -WN_REPO="${WN_REPO:-$SCRIPT_DIR/state/whitenoise-rs}" +WN_REPO="${WN_REPO:-$SCRIPT_DIR/state/mdk}" WN_BIN="$WN_REPO/target/release/wn" WND_BIN="$WN_REPO/target/release/wnd" AMY_BIN="$REPO_ROOT/cli/build/install/amy/bin/amy" diff --git a/cli/tests/marmot/marmot-interop.sh b/cli/tests/marmot/marmot-interop.sh index d901a69c78..b7b9a44d25 100755 --- a/cli/tests/marmot/marmot-interop.sh +++ b/cli/tests/marmot/marmot-interop.sh @@ -1,6 +1,6 @@ #!/usr/bin/env bash # -# marmot-interop.sh — interop test harness: Amethyst <-> whitenoise-rs (wn/wnd) +# marmot-interop.sh — interop test harness: Amethyst <-> MDK (wn/wnd) # # Sequential, all-or-nothing. Script drives the `wn` side automatically and # prompts the human operator at each step that requires Amethyst UI action. @@ -15,17 +15,16 @@ STATE_DIR="$SCRIPT_DIR/state" LOG_DIR="$STATE_DIR/logs" B_DIR="$STATE_DIR/B" C_DIR="$STATE_DIR/C" -# wnd derives its socket path as "{data_dir}/release/wnd.sock" for release -# builds (and ".../dev/wnd.sock" for debug); our preflight always uses -# --release, so we hardcode the "release" suffix here. -B_SOCKET="$B_DIR/release/wnd.sock" -C_SOCKET="$C_DIR/release/wnd.sock" +# The harness pins the daemon socket explicitly via wnd's --socket flag, so +# these paths are our choice rather than a guess at wnd's derived default. +B_SOCKET="$B_DIR/wnd.sock" +C_SOCKET="$C_DIR/wnd.sock" RUN_TS="$(date +%Y%m%d-%H%M%S)" LOG_FILE="$LOG_DIR/run-$RUN_TS.log" RESULTS_FILE="$STATE_DIR/results-$RUN_TS.tsv" -WN_REPO="${WN_REPO:-$STATE_DIR/whitenoise-rs}" +WN_REPO="${WN_REPO:-$STATE_DIR/mdk}" WN_BIN="" WND_BIN="" B_NPUB="" @@ -48,7 +47,7 @@ NO_BUILD=0 usage() { cat < whitenoise-rs interop harness +marmot-interop.sh — Amethyst <-> MDK interop harness Options: --local-relays Use ws://localhost:8080 instead of public relays (requires 'just docker-up') @@ -57,7 +56,7 @@ Options: -h, --help Show this help Environment: - WN_REPO Path to whitenoise-rs checkout (default: state/whitenoise-rs) + WN_REPO Path to the mdk checkout (default: state/mdk) EOF } @@ -97,12 +96,14 @@ preflight() { fail_msg "wn/wnd not found and --no-build set: $WN_BIN"; exit 1 fi if [[ ! -d "$WN_REPO/.git" ]]; then - step "cloning whitenoise-rs into $WN_REPO" - git clone --depth 1 https://github.com/marmot-protocol/whitenoise-rs.git "$WN_REPO" \ + # marmot-protocol/whitenoise-rs was archived on 2026-08-05; wn/wnd now + # ship from marmot-protocol/mdk as the `wn-cli` package. + step "cloning mdk into $WN_REPO" + git clone --depth 1 https://github.com/marmot-protocol/mdk.git "$WN_REPO" \ 2>&1 | tee -a "$LOG_FILE" fi - step "building wn + wnd (cargo build --release --features cli) — ~5 min first run" - ( cd "$WN_REPO" && cargo build --release --features cli --bin wn --bin wnd ) \ + step "building wn + wnd (cargo build --release -p wn-cli) — ~5 min first run" + ( cd "$WN_REPO" && cargo build --release -p wn-cli --bin wn --bin wnd ) \ 2>&1 | tee -a "$LOG_FILE" fi printf ' wn: %s\n wnd: %s\n' "$WN_BIN" "$WND_BIN" >>"$LOG_FILE" @@ -114,10 +115,13 @@ preflight() { _start_daemon_attempt() { local name="$1" data_dir="$2" socket="$3" rm -f "$socket" - mkdir -p "$data_dir/logs" "$data_dir/release" - # wnd puts its socket at {data_dir}/release/wnd.sock (release build) — we - # don't pass --socket because the daemon doesn't accept that flag. + mkdir -p "$data_dir/logs" + # MDK's wnd accepts an explicit --socket, so the harness pins the listen + # path instead of guessing at the derived one ({home}/dev/wnd.sock today). + # --secret-store file keeps account secrets out of the OS keychain, which + # is what lets this run in a container. nohup "$WND_BIN" --data-dir "$data_dir" --logs-dir "$data_dir/logs" \ + --socket "$socket" --secret-store file \ >"$data_dir/logs/stdout.log" 2>"$data_dir/logs/stderr.log" & local pid=$! echo "$pid" > "$data_dir/pid" @@ -153,11 +157,11 @@ start_daemon() { if _start_daemon_attempt "$name" "$data_dir" "$socket"; then return 0 fi - # Recover from a stale MLS SQLite DB whose keyring entry has gone - # missing (e.g. the keychain entry was pruned, the data dir was - # restored without the keyring, or a previous run used the mock - # keyring). wnd can't open the DB in that state, but the identity is - # disposable — wipe the data dir and let ensure_identity recreate it. + # Recover from a stale MLS SQLite DB whose secret has gone missing (the + # data dir was restored without its secret store, or an earlier run used a + # different --secret-store). wnd can't open the DB in that state, but the + # identity is disposable — wipe the data dir and let ensure_identity + # recreate it. if [[ -s "$data_dir/logs/stderr.log" ]] && \ grep -q 'KeyringEntryMissingForExistingDatabase' "$data_dir/logs/stderr.log"; then warn "$name: stale MLS DB detected (keyring entry missing) — wiping $data_dir and retrying" @@ -428,7 +432,7 @@ configure_relays() { local who="$1" wnfn if [[ "$who" == "B" ]]; then wnfn=wn_b; else wnfn=wn_c; fi local name="marmot-interop $who" - local about="Scripted wn identity for Amethyst<->whitenoise-rs interop harness" + local about="Scripted wn identity for Amethyst<->MDK interop harness" local out if out=$("$wnfn" profile update --name "$name" --about "$about" 2>&1); then printf '%s profile update ok: %s\n' "$who" "$out" >>"$LOG_FILE" @@ -530,7 +534,7 @@ configure_relays() { wn_b groups leave "$sanity_gid" >/dev/null 2>&1 || true else warn "kind:10050/1059 failed — C never received welcome; relays likely dropping gift wraps or inbox lists" - warn "Consider rerunning with --local-relays (requires 'just docker-up' in whitenoise-rs)." + warn "Consider rerunning with --local-relays (requires 'just docker-up' in the mdk checkout)." fi fi } @@ -1304,7 +1308,7 @@ main() { trap 'exit 130' INT trap 'exit 143' TERM trap 'exit 129' HUP - banner "Amethyst <-> whitenoise-rs interop harness ($RUN_TS)" + banner "Amethyst <-> MDK interop harness ($RUN_TS)" preflight start_daemon B "$B_DIR" "$B_SOCKET" diff --git a/cli/tests/marmot/patches/whitenoise-mock-keyring.patch b/cli/tests/marmot/patches/whitenoise-mock-keyring.patch deleted file mode 100644 index ed729fcf91..0000000000 --- a/cli/tests/marmot/patches/whitenoise-mock-keyring.patch +++ /dev/null @@ -1,17 +0,0 @@ ---- a/crates/whitenoise-cli/src/bin/wnd.rs -+++ b/crates/whitenoise-cli/src/bin/wnd.rs -@@ -44,6 +44,14 @@ async fn main() -> whitenoise_cli::Result<()> { - let args = Args::parse(); - let config = Config::resolve(args.data_dir.as_ref(), args.logs_dir.as_ref()); - -+ // marmot-interop-headless patch: allow sandboxes / CI without a real kernel -+ // keyring to fall back to the integration-tests mock keyring store by setting -+ // $WHITENOISE_MOCK_KEYRING=1. Requires building the binaries with -+ // `--features whitenoise/integration-tests` (the harness does). -+ if std::env::var("WHITENOISE_MOCK_KEYRING").is_ok() { -+ Whitenoise::initialize_mock_keyring_store(); -+ } -+ - let mut wn_config = - WhitenoiseConfig::new(&config.data_dir, &config.logs_dir, KEYRING_SERVICE_ID); - if !args.discovery_relays.is_empty() { diff --git a/cli/tests/marmot/patches/whitenoise-skip-unprocessable-retry.patch b/cli/tests/marmot/patches/whitenoise-skip-unprocessable-retry.patch deleted file mode 100644 index 875666fc5d..0000000000 --- a/cli/tests/marmot/patches/whitenoise-skip-unprocessable-retry.patch +++ /dev/null @@ -1,26 +0,0 @@ ---- a/src/whitenoise/event_processor/account_event_processor.rs -+++ b/src/whitenoise/event_processor/account_event_processor.rs -@@ -178,7 +178,22 @@ - } - Err(e) => { - // Handle retry logic for actual processing errors -- if retry_info.should_retry() { -+ // marmot-interop-headless patch: MLS errors that come from -+ // mdk are ALREADY terminal — mdk doesn't retry internally, so -+ // any Err it returns (Unprocessable, PreviouslyFailed, decrypt -+ // failure, group-not-found, etc.) is provably permanent. -+ // Retrying those 10 times with exponential backoff (total -+ // ~17 min) just blocks later decryptable commits behind a -+ // queue of doomed retries, so every later join / rename / -+ // leave propagation races the test timeout. Treat them all -+ // as one-shot: log once, move on. -+ let is_terminal = matches!( -+ e, -+ WhitenoiseError::MlsMessageUnprocessable(_) -+ | WhitenoiseError::MlsMessagePreviouslyFailed -+ | WhitenoiseError::MdkCoreError(_), -+ ); -+ if !is_terminal && retry_info.should_retry() { - self.schedule_retry(event, source, retry_info, e); - } else { - tracing::error!( diff --git a/cli/tests/marmot/setup.sh b/cli/tests/marmot/setup.sh index 6d03eb44fd..0c06556b9c 100644 --- a/cli/tests/marmot/setup.sh +++ b/cli/tests/marmot/setup.sh @@ -6,12 +6,11 @@ # --- preflight --------------------------------------------------------------- preflight() { banner "Preflight" - for cmd in jq git curl cargo protoc patch; do + for cmd in jq git curl cargo protoc; do if ! command -v "$cmd" >/dev/null 2>&1; then fail_msg "missing required tool: $cmd" case "$cmd" in protoc) info "hint: apt-get install protobuf-compiler (or brew install protobuf on macOS)" ;; - patch) info "hint: apt-get install patch" ;; esac exit 1 fi @@ -42,61 +41,36 @@ preflight() { [[ -x "$AMY_BIN" ]] || { fail_msg "amy still missing after build"; exit 1; } info "amy: $AMY_BIN" - # Clone/build whitenoise-rs if needed (shared between both harnesses). + # Clone/build the MDK reference client if needed (shared between both + # harnesses). + # + # This used to point at marmot-protocol/whitenoise-rs. That repository was + # archived on 2026-08-05 ("This repository is obsolete and is no longer + # updated") pinned to mdk-core 0.8.0, and wn/wnd moved into + # marmot-protocol/mdk as the `wn-cli` package. Pointing the harness at the + # dead repo tested us against a frozen MIP-era client, which is exactly the + # blind spot that let our implementation drift off the adopted spec. if [[ ! -d "$WN_REPO/.git" ]]; then if [[ "$NO_BUILD" -eq 1 ]]; then - fail_msg "whitenoise-rs checkout missing at $WN_REPO and --no-build set"; exit 1 + fail_msg "mdk checkout missing at $WN_REPO and --no-build set"; exit 1 fi - step "cloning whitenoise-rs into $WN_REPO" - git clone --depth 1 https://github.com/marmot-protocol/whitenoise-rs.git "$WN_REPO" \ + step "cloning mdk into $WN_REPO" + git clone --depth 1 https://github.com/marmot-protocol/mdk.git "$WN_REPO" \ 2>&1 | tee -a "$LOG_FILE" fi - # Two harness-only patches to whitenoise-rs so it runs in sandboxes that - # block the kernel keyring: - # 1. mock-keyring: honour $WHITENOISE_MOCK_KEYRING so wnd uses the - # integration-tests mock keyring store when the kernel keyutils - # syscalls are blocked (common in containers / CI). Compiled in via - # `--features whitenoise/integration-tests` on the build below. - # 2. skip-unprocessable-retry: when mdk-core returns a terminal MLS - # error (MlsMessageUnprocessable / PreviouslyFailed / MdkCoreError) - # the message is provably undecryptable — retrying it ten times with - # exponential backoff (~17 min) just blocks later decryptable commits - # behind a queue of doomed retries, which in the harness manifests as - # "A already left" / "name unchanged" timeouts. The patch treats those - # errors as terminal. + # No source patches. The harness used to carry two against whitenoise-rs: + # + # 1. mock-keyring, so wnd could run where the kernel keyring is blocked. + # MDK replaces this with a native flag: `--secret-store file` keeps + # account secrets in files under the data dir instead of the OS + # keychain. start_daemon passes it. + # 2. skip-unprocessable-retry, which made terminal MLS errors stop + # retrying. That patched `src/whitenoise/event_processor/`, a path MDK + # does not have. If MDK's retry behaviour turns out to stall this + # harness the same way, that is a fresh diagnosis against MDK's own + # code, not a patch to port. # - # The relay-override patches this harness used to carry (discovery-env / - # defaults-env) are gone: upstream wnd now takes native --discovery-relays - # and --default-account-relays flags (passed in start_daemon), which do the - # same job without patching. wn/wnd also moved into the crates/whitenoise-cli - # workspace member — the mock-keyring patch targets that path. - local -a patches=( - "whitenoise-mock-keyring.patch" - "whitenoise-skip-unprocessable-retry.patch" - ) - # Apply each patch with a real exit-code check. The previous version - # swallowed patch's exit status via `| tee`, which meant a miscounted - # hunk header silently left the marker touched and the binary unpatched - # — the resulting wn retried provably-doomed MLS messages for ~17min - # and every later test flapped or timed out. Fail fast instead. - for name in "${patches[@]}"; do - local marker="$WN_REPO/.headless-patched-${name%.patch}" - if [[ ! -f "$marker" ]]; then - step "patching whitenoise-rs: $name" - if ( cd "$WN_REPO" && patch -p1 --forward --reject-file=- \ - <"$SCRIPT_DIR/patches/$name" >>"$LOG_FILE" 2>&1 ); then - touch "$marker" - # Invalidate the previous build so the patched source is picked up. - rm -f "$WN_BIN" "$WND_BIN" - else - fail_msg "patch $name failed — see $LOG_FILE" - tail -n 30 "$LOG_FILE" | sed 's/^/ /' >&2 - exit 1 - fi - fi - done - # cargo's transitive deps (rustup, crates.io) both return 503 on cold # caches often enough that a single attempt fails ~30% of the time. # Retry each cargo build until the binary actually exists or we've @@ -109,8 +83,7 @@ preflight() { for attempt in $(seq 1 $max); do step "building wn + wnd (attempt $attempt/$max, ~5 min first run)" ( cd "$WN_REPO" && \ - cargo build --release -p whitenoise-cli \ - --features whitenoise/integration-tests --bin wn --bin wnd ) \ + cargo build --release -p wn-cli --bin wn --bin wnd ) \ 2>&1 | tee -a "$LOG_FILE" [[ -x "$WN_BIN" && -x "$WND_BIN" ]] && break [[ "$attempt" -lt "$max" ]] && warn "wn/wnd build failed (likely transient 503 from rustup or crates.io) — retrying" @@ -226,29 +199,31 @@ start_daemon() { info "$name daemon already running"; return 0 fi rm -f "$socket" - # The mock keyring (WHITENOISE_MOCK_KEYRING=1) is in-memory only and - # resets to empty on every wnd restart, but the SQLite databases that - # wnd writes under $data_dir persist across runs and reference keys that - # no longer exist — wnd then bails with KeyringEntryMissingForExistingDatabase - # before it can even open a socket. Wipe the keyring-dependent state on - # each start so the daemon always comes up cold and consistent. Logs - # and the pid file are preserved for post-mortem. + # Start every daemon from a cold data dir. A stale SQLite database whose + # matching secret is gone leaves wnd unable to open its store, and it then + # bails before it can even create the socket. The identities here are + # disposable, so wiping is always the right move. Logs and the pid file are + # preserved for post-mortem. if [[ -d "$data_dir" ]]; then find "$data_dir" -mindepth 1 -maxdepth 1 \ ! -name 'logs' ! -name 'pid' \ -exec rm -rf {} + 2>/dev/null || true fi - mkdir -p "$data_dir/logs" "$data_dir/release" + mkdir -p "$data_dir/logs" # --discovery-relays / --default-account-relays are native wnd flags that # force both the discovery plane and freshly-created accounts' NIP-65 / inbox # / key-package lists onto our loopback relay (kills the "can't reach nos.lol" # exit path and stops accounts from carrying unreachable public relays). # - # WHITENOISE_MOCK_KEYRING=1 is consumed by the mock-keyring patch: it swaps in - # the integration-tests mock secret store so wnd doesn't fall over when the - # kernel blocks keyutils syscalls. Harmless on a real host with a real keyring. - WHITENOISE_MOCK_KEYRING=1 \ - nohup "$WND_BIN" --data-dir "$data_dir" --logs-dir "$data_dir/logs" \ + # --socket pins the listen path instead of letting wnd derive it. MDK derives + # it as {home}/dev/wnd.sock, whitenoise-rs used {data_dir}/{profile}/wnd.sock; + # passing it explicitly makes the harness independent of that choice. + # + # --secret-store file replaces the old mock-keyring source patch: account + # secrets live in files under the data dir, so the daemon comes up in + # containers and CI where the kernel keyring is unavailable. + nohup "$WND_BIN" --data-dir "$data_dir" --logs-dir "$data_dir/logs" \ + --socket "$socket" --secret-store file \ --discovery-relays "$RELAY_URL" --default-account-relays "$RELAY_URL" \ >"$data_dir/logs/stdout.log" 2>"$data_dir/logs/stderr.log" & local pid=$! diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index ab217c1081..69a812522d 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -1,6 +1,6 @@ # Marmot: resync against the adopted spec and current MDK -Status: analysis + staged plan. Nothing implemented yet. +Status: Stage 0 done. Stages 1-7 open. Sources checked on 2026-09-08: @@ -230,16 +230,16 @@ lineage. Kinds 446–449 exist for us. Missing: the kind `451` push **owner proof** (spec'd 2026-07-23) and the token-record `relay_hint` publish-target rules. -### 4.11 Test/interop infrastructure — BLOCKER for verification +### 4.11 Test/interop infrastructure — was a BLOCKER, addressed in Stage 0 -- `cli/tests/marmot/marmot-interop.sh:101` clones the archived `whitenoise-rs`. The `wn`/`wnd` - binaries moved to `mdk/crates/cli`. -- `quartz/tools/mdk-vector-gen` pins plain openmls 0.8; MDK now uses the `extensions-draft` - fork. Regenerating against the fork is what gives us `app_data_dictionary` fixtures. -- Our MIP tests (`MarmotMipComplianceTest`, `MarmotMipBehaviorTest`) assert the deprecated - rules — e.g. `MarmotMipBehaviorTest.kt:793` asserts `RequiredCapabilities == [0xF2EE]`. - They pin us to the old profile and must be re-pointed, not deleted (the legacy bytes still - matter for reading our own stored groups). +- ~~`cli/tests/marmot/` clones the archived `whitenoise-rs`~~ — repointed at + `marmot-protocol/mdk` (`-p wn-cli`). +- ~~`quartz/tools/mdk-vector-gen` pins plain openmls 0.8~~ — repointed at the + `extensions-draft` fork, and `marmot-profile-gen` now emits current-profile fixtures. +- Still open: our MIP tests (`MarmotMipComplianceTest`, `MarmotMipBehaviorTest`) assert the + deprecated rules — e.g. `MarmotMipBehaviorTest.kt:793` asserts + `RequiredCapabilities == [0xF2EE]`. They pin us to the old profile and must be re-pointed, + not deleted (the legacy bytes still matter for reading our own stored groups). ## 5. Interop verdict today @@ -255,10 +255,26 @@ and the token-record `relay_hint` publish-target rules. Each stage is independently shippable and independently testable. -**Stage 0 — re-establish a live reference (small).** -Repoint `marmot-interop.sh` at `marmot-protocol/mdk` and its `wn`/`wnd`; regenerate -`mdk-vector-gen` against the `erskingardner/openmls` `extensions-draft` fork. Without this we -are guessing at bytes. Do this first regardless of what else gets scoped. +**Stage 0 — re-establish a live reference. DONE.** + +- `quartz/tools/mdk-vector-gen` now pins `erskingardner/openmls` at the exact rev MDK's root + `Cargo.toml` names, with the `extensions-draft` feature. Verified: it builds and runs. +- New generator `marmot-profile-gen` emits + `quartz/src/commonTest/resources/mls/marmot-current-profile.json` — a real current-profile + group with `app_data_dictionary` state at every location, PublicMessage handshakes, the Add + commit, the Welcome, and exporter KATs. It self-checks the account-identity-proof v2 + construction against the spec's published fixture at startup, so the emitted proofs are known + to match byte-for-byte. +- The interop harness (`cli/tests/marmot/`) now clones `marmot-protocol/mdk` and builds + `-p wn-cli` instead of the archived `whitenoise-rs`. Both source patches are gone: the + mock-keyring patch is replaced by MDK's native `--secret-store file`, and the + skip-unprocessable-retry patch targeted a path MDK does not have. The daemon socket is now + pinned with `wnd --socket` rather than guessed from a derived default. + +**Not yet run end-to-end.** The harness changes are derived from reading MDK's `DaemonArgs` and +`wn-cli` manifest, not from a passing run — building MDK's full workspace needs its pinned +toolchain and a local relay. A human run of `marmot-interop-headless.sh` is the acceptance test, +and is likely to surface at least the retry behaviour the old patch used to paper over. **Stage 1 — MLS extensions draft in Quartz (large, foundational).** `AppDataDictionary` / `ComponentData` TLS codecs; `app_components` (`0x0001`) and `safe_aad` @@ -293,11 +309,19 @@ withdrawal. Delete `CommitOrdering`'s transport-metadata tiebreak at this point, **Stage 7 — durability/restart conformance, app payload kinds (1009/1210), encrypted-media v2, push owner proof.** -### Open question for scoping +### Settled: Quartz keeps its own MLS -Stages 1–6 are a protocol rewrite, not a patch. The alternative worth naming: our Kotlin MLS -stack is ~7,900 lines and now has to chase a moving IETF draft that upstream tracks via a -fork of OpenMLS. If cross-client Marmot interop is a hard requirement, it may be cheaper to -decide *now* whether Quartz keeps its own MLS or binds MDK (which ships `marmot-c` and -`marmot-uniffi`) on Android/JVM. MDK is MIT, so licensing is clear; the cost is JNI/uniffi packaging per -target and losing our pure-Kotlin iOS/Linux reach. +Decided 2026-09-08. We do not bind `marmot-c` / `marmot-uniffi`; the pure-Kotlin stack stays, +and full MDK interoperability is the target. + +Consequences to plan around, since they are now ours to carry: + +- Stage 1 means implementing draft-ietf-mls-extensions-10's `app_data_dictionary` (`0x0006`), + `app_components` (`0x0001`), `safe_aad` (`0x0002`) and the `app_data_update` proposal + (`0x0008`) in `quartz/.../marmot/mls/`, against a draft upstream tracks through a fork of + OpenMLS rather than a released crate. +- The OpenMLS rev pinned in `mdk-vector-gen/Cargo.toml` is a version we now track deliberately. + When MDK bumps it, regenerate the vectors in the same change and diff them — a silent bump is + how we would drift again. +- Byte-level conformance is the only thing that keeps us honest, so every stage below lands with + vectors from `marmot-profile-gen`, not just unit tests written against our own reading. diff --git a/quartz/plans/README.md b/quartz/plans/README.md index 8016c5c8fd..0c4e9c9809 100644 --- a/quartz/plans/README.md +++ b/quartz/plans/README.md @@ -10,7 +10,7 @@ _Audited 2026-09-08. 12 plans: 7 shipped (archived), 0 in-progress, 4 queued, 1 | [2026-07-03-incremental-negentropy-storage.md](2026-07-03-incremental-negentropy-storage.md) | Always-current (created_at, id) index so cold NEG-OPENs stop paying a full scan + seal (~340 ms at 50k vs strfry's ~21 ms). | | [2026-07-04-small-req-floor.md](2026-07-04-small-req-floor.md) | Small-REQ dispatch floor: decomposed, inline fast path tried and reverted (no wire-level win); floor is transport-side. | | [2026-08-13-gpu-pow-mining.md](2026-08-13-gpu-pow-mining.md) | GPU NIP-13 mining declined (ARMv8 has SHA-256 in silicon, mobile GPUs do not). Midstate is ~3x on JVM targets; Android hinges on Conscrypt per-digest JNI cost, still unmeasured. created_at refresh while mining shipped. | -| [2026-09-08-marmot-spec-resync.md](2026-09-08-marmot-spec-resync.md) | Marmot moved off the MIP-era spec (2026-07-02): group state split into `app_data_dictionary` components, account identity proof v2, and a convergence engine. Current MDK rejects our groups outright. Gap analysis + 8-stage plan. | +| [2026-09-08-marmot-spec-resync.md](2026-09-08-marmot-spec-resync.md) | Marmot moved off the MIP-era spec (2026-07-02): group state split into `app_data_dictionary` components, account identity proof v2, and a convergence engine. Current MDK rejects our groups outright. Gap analysis + 8-stage plan; Stage 0 (interop reference repointed at mdk, current-profile vector generator) done. | ## Archived (shipped) | Plan | Summary | diff --git a/quartz/src/commonTest/resources/mls/marmot-current-profile.json b/quartz/src/commonTest/resources/mls/marmot-current-profile.json new file mode 100644 index 0000000000..990effea03 --- /dev/null +++ b/quartz/src/commonTest/resources/mls/marmot-current-profile.json @@ -0,0 +1,116 @@ +{ + "add_commit_public_message": 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+ "app_messages_alice_to_bob": [ + { + "plaintext": "48656c6c6f20426f6221", + "private_message": "000100021058b3ff7a7dcea415fd50f694576fe3e5000000000000000101001c12c465a57743d0504b0628eb8f4f482bf7eb6c790feed11c25e92457405d2c8fc2a14b0ecfa1117fdb858ba1633847267a556f509fabeef97e22074e299b26286ecc18f52da7a065e046292804a517cd27e9c8ce7e4faa154aedfc065a0c9e24d21187bace68a0ade9bf7b317552a2ee83f31af094f36ab155e357" + }, + { + "plaintext": "5365636f6e64206d65737361676520696e207468652073616d652065706f63682e", + "private_message": "000100021058b3ff7a7dcea415fd50f694576fe3e5000000000000000101001ce42f14d203be2d20c6cb94aa51a0394e4233e7af52df9707e0cfe0fa4074d155bb71e0f30beec4b2aa64f2afb45e2376bc05a4c935f6033d6200be8f42c5b81178238c0db0f925f9a0abeb62fee44d7fbd1bebe14980775d9bcc8566657811f9150c28f86155a2e895a3cced47e6f0b3162c87e588761b029edfe58274e8e09cc0a32bfd9e9fce8498b75a9fd970b71bf4c4" + } + ], + "cipher_suite": 1, + "committer": { + "account_identity_proof": { + "component": "defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34000000006553f100725ed9e4a85cc98dd5963095a941d29f4d6de79ab486a196fbe137eea10ad5f9678748b25045d9ecd67e621f4ffc6d42c1d1247e62c3a4f391f105f3d7202894", + "created_at": 1700000000, + "event_id": "8915534faaa884893c2b09d411c4f83232026a1468687002d95073468d800cf0", + "event_json": "[0,\"defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34\",1700000000,450,[[\"d\",\"marmot.account-identity-proof.v2\"],[\"component\",\"0x8009\"],[\"ciphersuite\",\"0x0001\"],[\"signature_scheme\",\"0x0807\"],[\"mls_signature_key\",\"d73d15dffb68fea7694378e9e38748e43d11ec5e011e3e981282bbd197d748f9\"]],\"Authorize this MLS leaf key for my Marmot account\"]", + "signature": "725ed9e4a85cc98dd5963095a941d29f4d6de79ab486a196fbe137eea10ad5f9678748b25045d9ecd67e621f4ffc6d42c1d1247e62c3a4f391f105f3d7202894" + }, + "account_pubkey": "defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34", + "leaf_dictionary": { + "0x0001": "0c00018001800380048009800c", + "0x0002": "00", + "0x8009": "defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34000000006553f100725ed9e4a85cc98dd5963095a941d29f4d6de79ab486a196fbe137eea10ad5f9678748b25045d9ecd67e621f4ffc6d42c1d1247e62c3a4f391f105f3d7202894" + }, + "signer_pub": "d73d15dffb68fea7694378e9e38748e43d11ec5e011e3e981282bbd197d748f9" + }, + "component_ids": { + "account_identity_proof_v2": "0x8009", + "admin_policy_v1": "0x8003", + "app_components": "0x0001", + "group_lifecycle_v1": "0x800c", + "group_profile_v1": "0x8001", + "last_resort_key_package": "0x0004", + "nostr_routing_v1": "0x8004", + "safe_aad": "0x0002" + }, + "description": "Current-profile Marmot group (app_data_dictionary + account-identity-proof v2), built on the OpenMLS extensions-draft fork MDK pins.", + "exporters": { + "convergence_conformance_v1": { + "commitment": "33c6245e99921e4d122e819d26d6a7d6d1c4888fdb3a560d6d30781afbb78f70", + "context": "636f6e76657267656e63652d636f6e666f726d616e63652d7631", + "label": "marmot", + "length": 32 + }, + "group_event": { + "context": "67726f75702d6576656e74", + "label": "marmot", + "length": 32, + "secret": "b75b3ceac7a9a9439ee146cbdf84a1305805acefec8d6ffd41c4690d6f9ea574" + } + }, + "group_state": { + "admins": [ + "defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34" + ], + "description": "current-profile fixture", + "epoch0_group_context_dictionary": { + "0x0001": "0a8001800380048009800c", + "0x8001": "0e4d61726d6f7420696e7465726f701763757272656e742d70726f66696c652066697874757265", + "0x8003": "20defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34", + "0x8004": "5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a230d7773733a2f2f6e6f732e6c6f6c147773733a2f2f72656c61792e64616d75732e696f", + "0x800c": "00" + }, + "epoch1_group_context_dictionary": { + "0x0001": "0a8001800380048009800c", + "0x8001": "0e4d61726d6f7420696e7465726f701763757272656e742d70726f66696c652066697874757265", + "0x8003": "20defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34", + "0x8004": "5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a230d7773733a2f2f6e6f732e6c6f6c147773733a2f2f72656c61792e64616d75732e696f", + "0x800c": "00" + }, + "name": "Marmot interop", + "nostr_group_id": "5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a", + "relays": [ + "wss://nos.lol", + "wss://relay.damus.io" + ] + }, + "handshake_wire_format": "public_message", + "joiner": { + "account_identity_proof": { + "component": "1be68a5a028f2601d0e80d468c344ba331d611b96c358b6032e8b4da0547fc11000000006553f10009d497513391541c32fcaf208440252d654c0f67aa8bcc3a58ff9cc6fa0dc9cb9691fbed684e0958b21d2057418e3e70d2c11d17f14278bf82fefa9228b00c6e", + "created_at": 1700000000, + "event_id": "81e5ab834204d79cbeab9d475d7c1f0f74bdbf1e55f321bd4e8bbcb79da4db95", + "event_json": 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"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", + "key_package_dictionary": { + "0x0004": "" + }, + "leaf_dictionary": { + "0x0001": "0c00018001800380048009800c", + "0x0002": "00", + "0x8009": "1be68a5a028f2601d0e80d468c344ba331d611b96c358b6032e8b4da0547fc11000000006553f10009d497513391541c32fcaf208440252d654c0f67aa8bcc3a58ff9cc6fa0dc9cb9691fbed684e0958b21d2057418e3e70d2c11d17f14278bf82fefa9228b00c6e" + }, + "signature_priv": "262dcc11eb77d04576b435a4eca5aa1116f7c025587f917684b2ad94166a5007", + "signature_pub": "3eb99cd422e76ed22ed3a815d4f02405198c762ceeb9e63dacd54a402f455f1f" + }, + "profile": "current", + "required_capabilities": { + "extensions": [ + "0x0006" + ], + "proposals": [ + "0x0008" + ] + }, + "signature_scheme": 2055, + "welcome": "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" +} diff --git a/quartz/tools/mdk-vector-gen/Cargo.toml b/quartz/tools/mdk-vector-gen/Cargo.toml index 853d15b0ea..623de2e975 100644 --- a/quartz/tools/mdk-vector-gen/Cargo.toml +++ b/quartz/tools/mdk-vector-gen/Cargo.toml @@ -4,22 +4,34 @@ version = "0.1.0" edition = "2021" [dependencies] -openmls = { version = "0.8.1", features = ["test-utils"] } -openmls_rust_crypto = "0.5.1" -openmls_basic_credential = { version = "0.5", features = ["test-utils"] } -openmls_memory_storage = { version = "0.5", features = ["persistence"] } -openmls_traits = "0.5" -tls_codec = "0.4" +# Pinned to the exact OpenMLS fork + rev MDK builds against, with the +# `extensions-draft` feature that carries draft-ietf-mls-extensions +# `app_data_dictionary` / `app_components` / `app_data_update`. Marmot's current +# profile is defined in those terms, so vectors generated from stock crates.io +# openmls cannot exercise it. Keep this rev in lockstep with mdk's root +# Cargo.toml -- a drift here silently generates vectors for the wrong wire shape. +openmls = { git = "https://github.com/erskingardner/openmls.git", rev = "59e7d3b27a7e95237879dd5478de1fd90eff7ada", features = ["test-utils", "extensions-draft"] } +openmls_rust_crypto = { git = "https://github.com/erskingardner/openmls.git", rev = "59e7d3b27a7e95237879dd5478de1fd90eff7ada" } +openmls_basic_credential = { git = "https://github.com/erskingardner/openmls.git", rev = "59e7d3b27a7e95237879dd5478de1fd90eff7ada", features = ["test-utils"] } +openmls_memory_storage = { git = "https://github.com/erskingardner/openmls.git", rev = "59e7d3b27a7e95237879dd5478de1fd90eff7ada", features = ["persistence", "extensions-draft"] } +openmls_traits = { git = "https://github.com/erskingardner/openmls.git", rev = "59e7d3b27a7e95237879dd5478de1fd90eff7ada", features = ["extensions-draft"] } +tls_codec = "0.5" hex = "0.4" serde_json = "1" serde = { version = "1", features = ["derive"] } base64 = "0.22" env_logger = "0.11" +secp256k1 = { version = "0.31", features = ["std", "global-context"] } +sha2 = "0.10" [[bin]] name = "mdk-vector-gen" path = "src/main.rs" +[[bin]] +name = "marmot-profile-gen" +path = "src/marmot_profile_gen.rs" + [[bin]] name = "emit-joiner-kp" path = "src/emit_joiner_kp.rs" diff --git a/quartz/tools/mdk-vector-gen/README.md b/quartz/tools/mdk-vector-gen/README.md index 51a35eb964..f2fcfc1db2 100644 --- a/quartz/tools/mdk-vector-gen/README.md +++ b/quartz/tools/mdk-vector-gen/README.md @@ -1,36 +1,85 @@ # mdk-vector-gen -Rust helper that emits MLS interop test vectors from the same openmls 0.8 -backend MDK/whitenoise uses. Produces `quartz/src/commonTest/resources/mls/mdk-welcome.json`, -which [`MdkWelcomeInteropTest`] consumes to prove Amethyst can parse and -decrypt a Welcome + application messages authored by the Rust side. +Rust helpers that emit MLS and Marmot interop test vectors from the same +OpenMLS backend MDK builds against. -## What the vector contains +**The dependency pin is the point of this tool.** `Cargo.toml` tracks +`erskingardner/openmls` at the exact rev MDK's root `Cargo.toml` names, built +with the `extensions-draft` feature. Stock crates.io `openmls` does not carry +`app_data_dictionary` / `app_components` / `app_data_update`, and the current +Marmot profile is defined entirely in those terms — so vectors generated from +the published crate cannot exercise it. When MDK bumps its OpenMLS rev, bump it +here in the same change. + +## Binaries + +### `marmot-profile-gen` → `marmot-current-profile.json` + +The current-profile Marmot vector: a group built the way MDK's `cgka-engine` +builds one. + +- `RequiredCapabilities` = extension `0x0006` (`app_data_dictionary`) + + proposal `0x0008` (`app_data_update`). +- GroupContext `app_data_dictionary` carrying the required-component list + (`0x0001`) plus `marmot.group.profile.v1` (`0x8001`), + `marmot.group.admin-policy.v1` (`0x8003`), + `marmot.transport.nostr.routing.v1` (`0x8004`) and + `marmot.group.lifecycle.v1` (`0x800c`). Component `0x8009` is *required* but + leaf-only, so it deliberately has no GroupContext data. +- Every member LeafNode dictionary carrying the supported-component list, an + empty `safe_aad` list, and the 104-byte + `marmot.member.account-identity-proof.v2` component. +- The KeyPackage-level dictionary carrying the empty-data + `last_resort_key_package` component (`0x0004`) — last resort is not an MLS + extension type in this profile. +- Handshake messages as `PublicMessage`, matching Marmot's pinned wire format; + the Add commit is emitted so the peeler has a real one to authenticate. +- Exporter KATs for both `MLS-Exporter("marmot", "group-event", 32)` and the + conformance commitment from `foundation/conformance.md`. + +The identity-proof encoder is hand-rolled from the spec text rather than pulled +from MDK, and `assert_spec_proof_vector()` checks it against the fixed vector +published in `app-components/account-identity-proof-v2.md` before anything else +runs. If the generator starts up at all, the canonical kind-450 event +serialization, its id, the BIP-340 signature and the 104-byte component layout +all match the spec byte-for-byte. + +``` +cd quartz/tools/mdk-vector-gen +cargo run --release --bin marmot-profile-gen \ + > ../../src/commonTest/resources/mls/marmot-current-profile.json +``` + +### `mdk-vector-gen` → `mdk-welcome.json` + +The MLS-core vector, unchanged in intent: it proves Amethyst can parse and +decrypt a Welcome plus application messages authored by the Rust side. It +builds a plain OpenMLS group with no Marmot profile state, which is exactly +what makes it a clean test of the key schedule alone. - `joiner.init_priv` / `encryption_priv` / `signature_priv` / `signature_pub` — - all the private key material the joiner needs to drive - `MlsGroup.processWelcome`. + the private key material the joiner needs to drive `MlsGroup.processWelcome`. - `joiner.key_package` (MlsMessage-wrapped) and `key_package_raw`. - `welcome` (MlsMessage-wrapped) — Alice's Welcome for Bob. - `committer.signer_pub` — Alice's Ed25519 signature public key. - `exporter.{label,context,length,secret}` — `MLS-Exporter("marmot", - "group-event", 32)` derived from Bob's post-join state. This is the - exporter Marmot uses to derive the outer ChaCha20 key for kind:445 - events, so a match here means Amethyst's whole post-join key schedule - agrees with openmls byte-for-byte. -- `app_messages_alice_to_bob[]` — Alice-sent PrivateMessage bytes plus - the expected plaintext. (Amethyst decrypt currently skips - `PrivateMessageContent` framing; the matching test is `@Ignore`d - until that is fixed.) + "group-event", 32)` derived from Bob's post-join state. A match here means + Amethyst's whole post-join key schedule agrees with OpenMLS byte-for-byte. +- `app_messages_alice_to_bob[]` — Alice-sent PrivateMessage bytes plus the + expected plaintext. + +``` +cargo run --release --bin mdk-vector-gen \ + > ../../src/commonTest/resources/mls/mdk-welcome.json +``` + +### `emit-joiner-kp`, `verify-amethyst` + +Debug helpers for driving one side of a join by hand. ## Regenerating -``` -cd quartz/tools/mdk-vector-gen -cargo run --release > ../../src/commonTest/resources/mls/mdk-welcome.json -``` - -The generator uses fresh randomness each run, so the committed vector -changes on regeneration — that is fine because the Kotlin test only -asserts round-trip correctness against whatever is in the JSON. Commit -the regenerated file if you change the generator. +Both generators use fresh randomness each run, so the committed vectors change +on regeneration — that is fine, because the Kotlin tests assert round-trip +correctness against whatever is in the JSON rather than against fixed bytes. +Commit the regenerated file if you change a generator. diff --git a/quartz/tools/mdk-vector-gen/src/emit_joiner_kp.rs b/quartz/tools/mdk-vector-gen/src/emit_joiner_kp.rs index 6abee9d3c2..4443510d68 100644 --- a/quartz/tools/mdk-vector-gen/src/emit_joiner_kp.rs +++ b/quartz/tools/mdk-vector-gen/src/emit_joiner_kp.rs @@ -22,11 +22,11 @@ use std::env; use std::fs::File; use std::process; +use ::tls_codec::Serialize; use openmls::prelude::*; use openmls_basic_credential::SignatureKeyPair; use openmls_rust_crypto::OpenMlsRustCrypto; use openmls_traits::OpenMlsProvider; -use tls_codec::Serialize; const CS: Ciphersuite = Ciphersuite::MLS_128_DHKEMX25519_AES128GCM_SHA256_Ed25519; diff --git a/quartz/tools/mdk-vector-gen/src/main.rs b/quartz/tools/mdk-vector-gen/src/main.rs index a1b5615936..a19d042288 100644 --- a/quartz/tools/mdk-vector-gen/src/main.rs +++ b/quartz/tools/mdk-vector-gen/src/main.rs @@ -13,11 +13,11 @@ // public half to the committer, then keep the three private keys so the // vector is fully-self-decryptable. +use ::tls_codec::{Deserialize, Serialize}; use openmls::prelude::*; use openmls_basic_credential::SignatureKeyPair; use openmls_rust_crypto::OpenMlsRustCrypto; use openmls_traits::OpenMlsProvider; -use tls_codec::{Deserialize, Serialize}; const CS: Ciphersuite = Ciphersuite::MLS_128_DHKEMX25519_AES128GCM_SHA256_Ed25519; @@ -64,13 +64,8 @@ fn main() { .use_ratchet_tree_extension(true) .build(); - let mut alice_group = MlsGroup::new( - &provider_a, - &alice_sig, - &group_cfg, - alice_cwk.clone(), - ) - .unwrap(); + let mut alice_group = + MlsGroup::new(&provider_a, &alice_sig, &group_cfg, alice_cwk.clone()).unwrap(); let (_commit_out, welcome_out, _group_info) = alice_group .add_members(&provider_a, &alice_sig, &[bob_kp.clone()]) @@ -95,7 +90,12 @@ fn main() { let exporter_context = b"group-event"; let exporter_length: usize = 32; let exporter_secret = bob_group - .export_secret(provider_b.crypto(), exporter_label, exporter_context, exporter_length) + .export_secret( + provider_b.crypto(), + exporter_label, + exporter_context, + exporter_length, + ) .unwrap(); // Alice sends three application messages to the group. Bob will replay diff --git a/quartz/tools/mdk-vector-gen/src/marmot_profile_gen.rs b/quartz/tools/mdk-vector-gen/src/marmot_profile_gen.rs new file mode 100644 index 0000000000..e896ab8ab1 --- /dev/null +++ b/quartz/tools/mdk-vector-gen/src/marmot_profile_gen.rs @@ -0,0 +1,577 @@ +// Generate a *current-profile Marmot* interop vector for the Amethyst Marmot module. +// +// `main.rs` proves our MLS core against stock OpenMLS: Welcome unwrap, key +// schedule, exporter. This binary proves the layer above it — the Marmot +// profile the adopted spec actually defines — by building a group the same way +// MDK's `cgka-engine` does: +// +// * handshake wire format is PublicMessage (`foundation/mls-protocol.md`, +// "Handshake wire format"); OpenMLS's WireFormatPolicy governs handshakes +// only, application messages stay PrivateMessage per RFC 9420; +// * `RequiredCapabilities` = extension `0x0006` app_data_dictionary + +// proposal `0x0008` app_data_update; +// * GroupContext carries an `app_data_dictionary` with the required-component +// list (`0x0001`) plus profile / admin-policy / nostr-routing / lifecycle; +// * every member LeafNode carries its own `app_data_dictionary` with the +// supported-component list, an empty `safe_aad` list, and the 104-byte +// `marmot.member.account-identity-proof.v2` component (`0x8009`); +// * the KeyPackage-level dictionary carries the empty-data +// `last_resort_key_package` component (`0x0004`) — last resort is NOT an +// MLS extension type in this profile. +// +// Everything emitted here is the byte shape our Kotlin side has to produce and +// parse. The component payload encoders below are deliberately hand-rolled from +// the spec text rather than pulled from MDK: if the hand-rolled bytes and +// OpenMLS's framing agree with MDK, the spec was read correctly. + +use ::tls_codec::{Deserialize, Serialize}; +use openmls::extensions::{AppDataDictionary, AppDataDictionaryExtension}; +use openmls::prelude::*; +use openmls_basic_credential::SignatureKeyPair; +use openmls_rust_crypto::OpenMlsRustCrypto; +use openmls_traits::OpenMlsProvider; +use secp256k1::{Keypair, Secp256k1, SecretKey, XOnlyPublicKey}; +use sha2::{Digest, Sha256}; + +const CS: Ciphersuite = Ciphersuite::MLS_128_DHKEMX25519_AES128GCM_SHA256_Ed25519; + +// foundation/registries.md — upstream MLS extensions draft ids. +const COMPONENT_APP_COMPONENTS: u16 = 0x0001; +const COMPONENT_SAFE_AAD: u16 = 0x0002; +const COMPONENT_LAST_RESORT: u16 = 0x0004; +// foundation/registries.md — Marmot private-range component ids. +const COMPONENT_GROUP_PROFILE: u16 = 0x8001; +const COMPONENT_ADMIN_POLICY: u16 = 0x8003; +const COMPONENT_NOSTR_ROUTING: u16 = 0x8004; +const COMPONENT_ACCOUNT_IDENTITY_PROOF: u16 = 0x8009; +const COMPONENT_GROUP_LIFECYCLE: u16 = 0x800c; + +const PROOF_EVENT_KIND: u16 = 450; +const PROOF_DOMAIN: &str = "marmot.account-identity-proof.v2"; +const PROOF_CONTENT: &str = "Authorize this MLS leaf key for my Marmot account"; + +// ---------------------------------------------------------------- encoders + +/// QUIC variable-length integer, `foundation/canonical-encoding.md`. +fn put_varint(value: u64, out: &mut Vec) { + if value < 64 { + out.push(value as u8); + } else if value < 16_384 { + out.extend_from_slice(&(0x4000_u16 | value as u16).to_be_bytes()); + } else if value < 1_073_741_824 { + out.extend_from_slice(&(0x8000_0000_u32 | value as u32).to_be_bytes()); + } else { + out.extend_from_slice(&(0xC000_0000_0000_0000_u64 | value).to_be_bytes()); + } +} + +fn put_var_bytes(bytes: &[u8], out: &mut Vec) { + put_varint(bytes.len() as u64, out); + out.extend_from_slice(bytes); +} + +/// `ComponentsList { ComponentID component_ids; }` — ids ascending, no dups. +fn encode_components_list(ids: &[u16]) -> Vec { + let mut sorted = ids.to_vec(); + sorted.sort_unstable(); + sorted.dedup(); + let mut out = Vec::new(); + put_varint((sorted.len() * 2) as u64, &mut out); + for id in sorted { + out.extend_from_slice(&id.to_be_bytes()); + } + out +} + +/// `marmot.group.profile.v1` — two var-byte UTF-8 fields. +fn encode_group_profile(name: &str, description: &str) -> Vec { + let mut out = Vec::new(); + put_var_bytes(name.as_bytes(), &mut out); + put_var_bytes(description.as_bytes(), &mut out); + out +} + +/// `marmot.group.admin-policy.v1` — one var-byte vector of concatenated +/// 32-byte x-only account keys, sorted and de-duplicated. +fn encode_admin_policy(admins: &[[u8; 32]]) -> Vec { + let mut sorted = admins.to_vec(); + sorted.sort_unstable(); + sorted.dedup(); + let mut flat = Vec::with_capacity(sorted.len() * 32); + for admin in &sorted { + flat.extend_from_slice(admin); + } + let mut out = Vec::new(); + put_var_bytes(&flat, &mut out); + out +} + +/// `marmot.transport.nostr.routing.v1` — raw 32-byte routing id followed by a +/// var-byte vector of var-byte relay URLs, sorted lexicographically. +fn encode_nostr_routing(nostr_group_id: &[u8; 32], relays: &[&str]) -> Vec { + let mut sorted = relays.to_vec(); + sorted.sort_unstable(); + sorted.dedup(); + let mut entries = Vec::new(); + for relay in &sorted { + put_var_bytes(relay.as_bytes(), &mut entries); + } + let mut out = Vec::with_capacity(32 + entries.len() + 8); + out.extend_from_slice(nostr_group_id); + put_var_bytes(&entries, &mut out); + out +} + +/// `marmot.group.lifecycle.v1` — exactly one byte; 0x00 active, 0x01 disbanded. +fn encode_group_lifecycle_active() -> Vec { + vec![0x00] +} + +// ------------------------------------------------- account identity proof v2 + +struct ProofMaterial { + component: Vec, + event_json: String, + event_id: [u8; 32], + signature: [u8; 64], + created_at: u64, +} + +/// Build the kind-450 signing template from `app-components/account-identity-proof-v2.md` +/// and return its NIP-01 canonical serialization plus id. +fn proof_event( + account_pubkey: &XOnlyPublicKey, + mls_signature_key: &[u8], + created_at: u64, +) -> (String, [u8; 32]) { + let tags = serde_json::json!([ + ["d", PROOF_DOMAIN], + [ + "component", + format!("0x{COMPONENT_ACCOUNT_IDENTITY_PROOF:04x}") + ], + ["ciphersuite", format!("0x{:04x}", u16::from(CS))], + [ + "signature_scheme", + format!("0x{:04x}", CS.signature_algorithm() as u16) + ], + ["mls_signature_key", hex::encode(mls_signature_key)], + ]); + // NIP-01 canonical form: [0, pubkey, created_at, kind, tags, content]. + // serde_json applies the exact escaping rules the id is defined over. + let canonical = serde_json::json!([ + 0, + hex::encode(account_pubkey.serialize()), + created_at, + PROOF_EVENT_KIND, + tags, + PROOF_CONTENT, + ]); + let serialized = serde_json::to_string(&canonical).unwrap(); + let id: [u8; 32] = Sha256::digest(serialized.as_bytes()).into(); + (serialized, id) +} + +fn build_proof(account: &Keypair, mls_signature_key: &[u8], created_at: u64) -> ProofMaterial { + let secp = Secp256k1::new(); + let (xonly, _parity) = account.x_only_public_key(); + let (event_json, event_id) = proof_event(&xonly, mls_signature_key, created_at); + + // The 32-byte event id is itself the BIP-340 message; Marmot does not + // re-hash it (`account-identity-proof-v2.md`, "Signing event"). + let signature = secp + .sign_schnorr_no_aux_rand(&event_id, account) + .to_byte_array(); + + let mut component = Vec::with_capacity(104); + component.extend_from_slice(&xonly.serialize()); + component.extend_from_slice(&created_at.to_be_bytes()); + component.extend_from_slice(&signature); + assert_eq!(component.len(), 104, "proof component must be 104 bytes"); + + ProofMaterial { + component, + event_json, + event_id, + signature, + created_at, + } +} + +/// Self-check the hand-rolled proof construction against the fixed vector +/// published in `app-components/account-identity-proof-v2.md`. If this trips, +/// the generator is emitting proofs no MDK client will accept — and every +/// downstream vector in this file is worthless. +fn assert_spec_proof_vector() { + let secp = Secp256k1::new(); + let mut sk_bytes = [0_u8; 32]; + sk_bytes[31] = 3; + let account = Keypair::from_secret_key(&secp, &SecretKey::from_byte_array(sk_bytes).unwrap()); + let mls_signature_key: Vec = (0_u8..32).collect(); + let (xonly, _) = account.x_only_public_key(); + assert_eq!( + hex::encode(xonly.serialize()), + "f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9", + "spec fixture pubkey mismatch" + ); + + let (json, id) = proof_event(&xonly, &mls_signature_key, 1_700_000_000); + assert_eq!( + json, + r#"[0,"f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9",1700000000,450,[["d","marmot.account-identity-proof.v2"],["component","0x8009"],["ciphersuite","0x0001"],["signature_scheme","0x0807"],["mls_signature_key","000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"]],"Authorize this MLS leaf key for my Marmot account"]"#, + "canonical proof-event serialization does not match the spec fixture" + ); + assert_eq!( + hex::encode(id), + "b7e9a15dd85990fb0f49c33db3cc9875f73986207b038404ceb6b7fec4e0af6b", + "proof event id does not match the spec fixture" + ); + + let expected_component = "f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9\ + 000000006553f100\ + c5315d3c85b9d4907cb03395a2a97b3ba2eab393f8e45b13a5d5233acedac60a\ + 51d2a295e1b1b5ee372d18a49bdb8041a7dba9dedce722c7c6f712f78bbdfb5d" + .replace([' ', '\n'], ""); + let proof = build_proof(&account, &mls_signature_key, 1_700_000_000); + assert_eq!( + hex::encode(&proof.component), + expected_component, + "104-byte proof component does not match the spec fixture" + ); +} + +// ------------------------------------------------------------------- member + +struct Member { + account: Keypair, + account_xonly: [u8; 32], + signer: SignatureKeyPair, + credential: CredentialWithKey, +} + +fn new_member(secret_byte: u8) -> Member { + let secp = Secp256k1::new(); + let mut sk_bytes = [0_u8; 32]; + sk_bytes[31] = secret_byte; + let account = Keypair::from_secret_key(&secp, &SecretKey::from_byte_array(sk_bytes).unwrap()); + let (xonly, _) = account.x_only_public_key(); + let account_xonly = xonly.serialize(); + + // foundation/identity.md: the MLS BasicCredential identity is the raw + // 32-byte x-only account key — not hex text, not an npub. + let signer = SignatureKeyPair::new(CS.signature_algorithm()).unwrap(); + let credential = CredentialWithKey { + credential: BasicCredential::new(account_xonly.to_vec()).into(), + signature_key: signer.public().into(), + }; + Member { + account, + account_xonly, + signer, + credential, + } +} + +/// Component ids this generator claims to support, advertised in every leaf. +fn supported_components() -> Vec { + vec![ + COMPONENT_APP_COMPONENTS, + COMPONENT_GROUP_PROFILE, + COMPONENT_ADMIN_POLICY, + COMPONENT_NOSTR_ROUTING, + COMPONENT_ACCOUNT_IDENTITY_PROOF, + COMPONENT_GROUP_LIFECYCLE, + ] +} + +/// Component ids a current-profile group requires. +fn required_components() -> Vec { + vec![ + COMPONENT_GROUP_PROFILE, + COMPONENT_ADMIN_POLICY, + COMPONENT_NOSTR_ROUTING, + COMPONENT_ACCOUNT_IDENTITY_PROOF, + COMPONENT_GROUP_LIFECYCLE, + ] +} + +fn leaf_capabilities() -> Capabilities { + // RFC 9420 section 7.2 forbids advertising default extension types, so + // only the draft app_data_dictionary extension and app_data_update + // proposal appear here. + Capabilities::new( + None, + Some(&[CS]), + Some(&[ExtensionType::AppDataDictionary]), + Some(&[ProposalType::AppDataUpdate]), + None, + ) +} + +fn leaf_extensions(proof_component: &[u8]) -> Extensions { + let mut dict = AppDataDictionary::new(); + dict.insert( + COMPONENT_APP_COMPONENTS, + encode_components_list(&supported_components()), + ); + // Advertising safe_aad support with an empty component list: understood, + // nothing contributed. Required of anyone advertising app_data_dictionary. + dict.insert(COMPONENT_SAFE_AAD, encode_components_list(&[])); + dict.insert(COMPONENT_ACCOUNT_IDENTITY_PROOF, proof_component.to_vec()); + Extensions::single(Extension::AppDataDictionary( + AppDataDictionaryExtension::new(dict), + )) + .unwrap() +} + +fn group_context_extensions( + admins: &[[u8; 32]], + nostr_group_id: &[u8; 32], + relays: &[&str], + name: &str, + description: &str, +) -> Extensions { + let mut dict = AppDataDictionary::new(); + dict.insert( + COMPONENT_APP_COMPONENTS, + encode_components_list(&required_components()), + ); + dict.insert( + COMPONENT_GROUP_PROFILE, + encode_group_profile(name, description), + ); + dict.insert(COMPONENT_ADMIN_POLICY, encode_admin_policy(admins)); + dict.insert( + COMPONENT_NOSTR_ROUTING, + encode_nostr_routing(nostr_group_id, relays), + ); + dict.insert(COMPONENT_GROUP_LIFECYCLE, encode_group_lifecycle_active()); + // 0x8009 is required but leaf-only: its data must NOT appear here. + + Extensions::from_vec(vec![ + Extension::RequiredCapabilities(RequiredCapabilitiesExtension::new( + &[ExtensionType::AppDataDictionary], + &[ProposalType::AppDataUpdate], + &[], + )), + Extension::AppDataDictionary(AppDataDictionaryExtension::new(dict)), + ]) + .unwrap() +} + +fn dictionary_entries_json(dictionary: Option<&AppDataDictionaryExtension>) -> serde_json::Value { + let mut entries = serde_json::Map::new(); + if let Some(ext) = dictionary { + for entry in ext.dictionary().entries() { + entries.insert( + format!("0x{:04x}", entry.id()), + serde_json::Value::String(hex::encode(entry.data())), + ); + } + } + serde_json::Value::Object(entries) +} + +fn main() { + assert_spec_proof_vector(); + + let provider_a = OpenMlsRustCrypto::default(); + let provider_b = OpenMlsRustCrypto::default(); + + let alice = new_member(0x11); + alice.signer.store(provider_a.storage()).unwrap(); + let bob = new_member(0x22); + bob.signer.store(provider_b.storage()).unwrap(); + + let created_at = 1_700_000_000_u64; + let alice_proof = build_proof(&alice.account, alice.signer.public(), created_at); + let bob_proof = build_proof(&bob.account, bob.signer.public(), created_at); + + // Bob publishes a last-resort KeyPackage in the current profile. + let bob_kp_bundle = KeyPackage::builder() + .leaf_node_capabilities(leaf_capabilities()) + .leaf_node_extensions(leaf_extensions(&bob_proof.component)) + .mark_as_last_resort() + .build(CS, &provider_b, &bob.signer, bob.credential.clone()) + .unwrap(); + let bob_kp = bob_kp_bundle.key_package().clone(); + let bob_kp_msg: MlsMessageOut = MlsMessageOut::from(bob_kp.clone()); + let bob_kp_msg_bytes = bob_kp_msg.tls_serialize_detached().unwrap(); + let bob_init_priv: Vec = (**bob_kp_bundle.init_private_key()).to_vec(); + let bob_enc_priv: Vec = (**bob_kp_bundle.encryption_private_key()).to_vec(); + let bob_kp_dict = dictionary_entries_json(bob_kp.extensions().app_data_dictionary()); + let bob_leaf_dict = + dictionary_entries_json(bob_kp.leaf_node().extensions().app_data_dictionary()); + + let nostr_group_id = [0x5a_u8; 32]; + let relays = ["wss://nos.lol", "wss://relay.damus.io"]; + let gc_exts = group_context_extensions( + &[alice.account_xonly], + &nostr_group_id, + &relays, + "Marmot interop", + "current-profile fixture", + ); + + let group_cfg = MlsGroupCreateConfig::builder() + .ciphersuite(CS) + .capabilities(leaf_capabilities()) + .with_leaf_node_extensions(leaf_extensions(&alice_proof.component)) + .unwrap() + .wire_format_policy(openmls::group::PURE_PLAINTEXT_WIRE_FORMAT_POLICY) + .with_group_context_extensions(gc_exts) + .use_ratchet_tree_extension(true) + .build(); + + let mut alice_group = MlsGroup::new( + &provider_a, + &alice.signer, + &group_cfg, + alice.credential.clone(), + ) + .unwrap(); + + let epoch0_gc_dict = dictionary_entries_json(alice_group.extensions().app_data_dictionary()); + let alice_leaf_dict = dictionary_entries_json( + alice_group + .own_leaf_node() + .unwrap() + .extensions() + .app_data_dictionary(), + ); + + let (commit_out, welcome_out, _group_info) = alice_group + .add_members(&provider_a, &alice.signer, &[bob_kp.clone()]) + .unwrap(); + alice_group.merge_pending_commit(&provider_a).unwrap(); + + // The Add commit is a PublicMessage under the Marmot handshake profile — + // the exact shape our peeler has to authenticate and replay. + let add_commit_bytes = commit_out.tls_serialize_detached().unwrap(); + let welcome_bytes = welcome_out.tls_serialize_detached().unwrap(); + + let welcome_in = MlsMessageIn::tls_deserialize(&mut welcome_bytes.as_slice()).unwrap(); + let welcome = match welcome_in.extract() { + MlsMessageBodyIn::Welcome(w) => w, + other => panic!("expected Welcome, got {other:?}"), + }; + let join_cfg = MlsGroupJoinConfig::builder().build(); + let staged = StagedWelcome::new_from_welcome(&provider_b, &join_cfg, welcome, None).unwrap(); + let bob_group = staged.into_group(&provider_b).unwrap(); + + let group_event_secret = bob_group + .export_secret(provider_b.crypto(), "marmot", b"group-event", 32) + .unwrap(); + // foundation/conformance.md — the synthetic state-commitment exporter. + let conformance_secret = bob_group + .export_secret( + provider_b.crypto(), + "marmot", + b"convergence-conformance-v1", + 32, + ) + .unwrap(); + let conformance_commitment: [u8; 32] = { + let mut hasher = Sha256::new(); + hasher.update(b"marmot-convergence-conformance-v1"); + hasher.update([0x00]); + hasher.update(&conformance_secret); + hasher.finalize().into() + }; + + let plaintexts: Vec<&[u8]> = vec![ + b"Hello Bob!".as_ref(), + b"Second message in the same epoch.".as_ref(), + ]; + let mut app_messages = Vec::new(); + for pt in &plaintexts { + let out = alice_group + .create_message(&provider_a, &alice.signer, pt) + .unwrap(); + app_messages.push(serde_json::json!({ + "plaintext": hex::encode(pt), + "private_message": hex::encode(out.tls_serialize_detached().unwrap()), + })); + } + + let vector = serde_json::json!({ + "cipher_suite": u16::from(CS), + "signature_scheme": CS.signature_algorithm() as u16, + "description": + "Current-profile Marmot group (app_data_dictionary + account-identity-proof v2), \ + built on the OpenMLS extensions-draft fork MDK pins.", + "profile": "current", + "handshake_wire_format": "public_message", + "required_capabilities": { + "extensions": ["0x0006"], + "proposals": ["0x0008"], + }, + "component_ids": { + "app_components": format!("0x{COMPONENT_APP_COMPONENTS:04x}"), + "safe_aad": format!("0x{COMPONENT_SAFE_AAD:04x}"), + "last_resort_key_package": format!("0x{COMPONENT_LAST_RESORT:04x}"), + "group_profile_v1": format!("0x{COMPONENT_GROUP_PROFILE:04x}"), + "admin_policy_v1": format!("0x{COMPONENT_ADMIN_POLICY:04x}"), + "nostr_routing_v1": format!("0x{COMPONENT_NOSTR_ROUTING:04x}"), + "account_identity_proof_v2": format!("0x{COMPONENT_ACCOUNT_IDENTITY_PROOF:04x}"), + "group_lifecycle_v1": format!("0x{COMPONENT_GROUP_LIFECYCLE:04x}"), + }, + "group_state": { + "nostr_group_id": hex::encode(nostr_group_id), + "relays": relays, + "name": "Marmot interop", + "description": "current-profile fixture", + "admins": [hex::encode(alice.account_xonly)], + "epoch0_group_context_dictionary": epoch0_gc_dict, + "epoch1_group_context_dictionary": + dictionary_entries_json(alice_group.extensions().app_data_dictionary()), + }, + "committer": { + "account_pubkey": hex::encode(alice.account_xonly), + "signer_pub": hex::encode(alice.signer.public()), + "leaf_dictionary": alice_leaf_dict, + "account_identity_proof": { + "component": hex::encode(&alice_proof.component), + "created_at": alice_proof.created_at, + "event_json": alice_proof.event_json, + "event_id": hex::encode(alice_proof.event_id), + "signature": hex::encode(alice_proof.signature), + }, + }, + "joiner": { + "account_pubkey": hex::encode(bob.account_xonly), + "init_priv": hex::encode(&bob_init_priv), + "encryption_priv": hex::encode(&bob_enc_priv), + "signature_priv": hex::encode(bob.signer.private()), + "signature_pub": hex::encode(bob.signer.public()), + "key_package": hex::encode(&bob_kp_msg_bytes), + "key_package_dictionary": bob_kp_dict, + "leaf_dictionary": bob_leaf_dict, + "account_identity_proof": { + "component": hex::encode(&bob_proof.component), + "created_at": bob_proof.created_at, + "event_json": bob_proof.event_json, + "event_id": hex::encode(bob_proof.event_id), + "signature": hex::encode(bob_proof.signature), + }, + }, + "add_commit_public_message": hex::encode(&add_commit_bytes), + "welcome": hex::encode(&welcome_bytes), + "exporters": { + "group_event": { + "label": "marmot", + "context": hex::encode(b"group-event"), + "length": 32, + "secret": hex::encode(&group_event_secret), + }, + "convergence_conformance_v1": { + "label": "marmot", + "context": hex::encode(b"convergence-conformance-v1"), + "length": 32, + "commitment": hex::encode(conformance_commitment), + }, + }, + "app_messages_alice_to_bob": app_messages, + }); + println!("{}", serde_json::to_string_pretty(&vector).unwrap()); +} diff --git a/quartz/tools/mdk-vector-gen/src/verify_amethyst.rs b/quartz/tools/mdk-vector-gen/src/verify_amethyst.rs index d9e90f8e65..6b353e60a6 100644 --- a/quartz/tools/mdk-vector-gen/src/verify_amethyst.rs +++ b/quartz/tools/mdk-vector-gen/src/verify_amethyst.rs @@ -14,13 +14,13 @@ use std::env; use std::fs::{self, File}; use std::process; +use ::tls_codec::Deserialize as TlsDeserialize; use base64::Engine; use openmls::prelude::*; use openmls_rust_crypto::OpenMlsRustCrypto; use openmls_traits::OpenMlsProvider; use serde::Deserialize; use std::collections::HashMap; -use tls_codec::Deserialize as TlsDeserialize; #[derive(Deserialize)] struct Handoff { From 1d66e4e2f6c4eb7573af9dcaea22735c35ef35bd Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 15:04:59 +0000 Subject: [PATCH 03/79] feat(marmot): implement account identity proof v2, the current profile's leaf binding MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Stage 2 of the Marmot resync. A member leaf carries two unrelated keys — the MLS BasicCredential identity, which is the member's Nostr account key, and the MLS leaf signature key MLS generates per device — and MLS never checks that the account agreed to the leaf key next to it. Without a proof, anyone able to author a leaf can claim any account's identity. This is also what makes us classifiable at all. MDK decides Legacy vs Current purely on whether a group requires extension 0xf2f1 or component 0x8009; we required neither, so profile classification errored out before any component check ran. Adds the common authorization-proof envelope (foundation/authorization-proofs.md): 104 fixed-width bytes of signer pubkey, big-endian uint64 timestamp and BIP-340 signature, with event-id reconstruction. The created_at bounds are load-bearing twice over — the lower bound rejects zero, and the upper bound (2^53-1) catches a uint64 whose top bit is set, which reads back negative as a Kotlin Long. Deliberately absent: any comparison of created_at against a local clock. A proof authorizes a long-lived key binding, not a one-time operation, and a wall-clock rule would let skew make two members reach different verdicts on the same Commit. The component itself signs a kind-450 template through NostrSigner rather than raw BIP-340, which is the whole point of the indirection: a NIP-46 bunker or NIP-55 app can produce a proof without exposing arbitrary signing. create() therefore re-verifies everything the signer returned — pubkey, timestamp, kind, tags, content, recomputed id, signature — since an external signer is free to substitute a stale or altered event. Also adds the app-component id registry, and the RFC 9420 signature-scheme mapping to MlsCiphersuite (declared outside the companion: an enum's entries initialize before its companion object, so entry constructor arguments cannot read companion properties). Tested two ways. Sixteen tests pin the spec's published fixture — canonical event serialization, event id, signature, the 104-byte layout — and check that every signed input actually binds, including a ciphersuite change that leaves the signature scheme untouched. Six more validate the proofs in marmot-current-profile.json: those come from a separate implementation, for randomly generated keys, which is the interop property a fixed vector cannot establish. Full quartz marmot suite: 395 tests, 0 failures. Nothing reads or writes these on a real leaf yet — the carrier is the app_data_dictionary, which is Stage 1. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- quartz/plans/2026-09-08-marmot-spec-resync.md | 32 +- quartz/plans/README.md | 2 +- .../marmot/appComponents/AppComponentIds.kt | 110 ++++++ .../AccountIdentityProofV2.kt | 281 +++++++++++++++ .../MarmotAuthorizationProof.kt | 151 ++++++++ .../marmot/mip01Groups/MlsCiphersuite.kt | 39 ++- .../resources/mls/marmot-current-profile.json | 44 +-- .../AccountIdentityProofV2Test.kt | 330 ++++++++++++++++++ .../MarmotCurrentProfileVectorTest.kt | 198 +++++++++++ .../mdk-vector-gen/src/marmot_profile_gen.rs | 4 +- 10 files changed, 1154 insertions(+), 37 deletions(-) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AppComponentIds.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/accountIdentityProof/AccountIdentityProofV2.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/authorizationProofs/MarmotAuthorizationProof.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AccountIdentityProofV2Test.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotCurrentProfileVectorTest.kt diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index 69a812522d..092272ed14 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -1,6 +1,6 @@ # Marmot: resync against the adopted spec and current MDK -Status: Stage 0 done. Stages 1-7 open. +Status: Stages 0 and 2 done. Stages 1, 3-7 open. Sources checked on 2026-09-08: @@ -281,11 +281,31 @@ and is likely to surface at least the retry behaviour the old patch used to pape (`0x0002`); `AppDataUpdate` proposal (`0x0008`) through `MlsGroup` staging/validation; last-resort as KeyPackage component `0x0004`. Everything else depends on this. -**Stage 2 — account identity proof v2 (`0x8009`).** -`MarmotAuthorizationProof` codec, kind-450 signing template, BIP-340 verify, LeafNode/ -KeyPackage validation, capability advertisement. Ships with the spec's published test vector, -so it can be built and verified before Stage 1 lands. This is what makes us classifiable at -all. +**Stage 2 — account identity proof v2 (`0x8009`). DONE.** + +- `marmot/foundation/authorizationProofs/MarmotAuthorizationProof` — the 104-byte common + envelope from `foundation/authorization-proofs.md`, with the `created_at` bounds (`1` to + `2^53-1`, catching a uint64 that reads back negative as a Long) and event-id reconstruction. + Deliberately no wall-clock comparison: a proof does not expire, because clock skew must not + make two members disagree about the same Commit. +- `marmot/appComponents/accountIdentityProof/AccountIdentityProofV2` — the kind-450 signing + template, production through `NostrSigner` (so NIP-46 / NIP-55 signers work), and validation + returning a typed reason. `create()` re-verifies what the signer returned — pubkey, timestamp, + kind, tags, content, id and signature — because an external signer is free to substitute. +- `marmot/appComponents/AppComponentIds` — the component registry from + `foundation/registries.md`, needed by Stages 1 and 3 too. +- `MlsCiphersuite` gained the RFC 9420 §17.1 signature-scheme mapping, which the proof signs + and validates explicitly. + +Verified: 16 tests against the spec's published fixture (canonical event serialization, event +id, signature, 104-byte layout) plus every signed input's binding, and 6 tests validating the +proofs in `marmot-current-profile.json` — proofs produced by a *separate* implementation for +random keys, which a fixed vector cannot establish. Full `:quartz:jvmTest --tests "*marmot*"`: +395 tests, 0 failures. + +Not yet wired: nothing reads or writes these components on a real leaf. The carrier is the +`app_data_dictionary`, which is Stage 1. Until then this is a correct, tested primitive with no +call sites — which is exactly what makes Stage 1 mechanical rather than exploratory. **Stage 3 — split `MarmotGroupData` into components.** `0x8001` profile, `0x8003` admin-policy, `0x8004` nostr-routing, `0x8002` blossom-image diff --git a/quartz/plans/README.md b/quartz/plans/README.md index 0c4e9c9809..47acb67e2b 100644 --- a/quartz/plans/README.md +++ b/quartz/plans/README.md @@ -10,7 +10,7 @@ _Audited 2026-09-08. 12 plans: 7 shipped (archived), 0 in-progress, 4 queued, 1 | [2026-07-03-incremental-negentropy-storage.md](2026-07-03-incremental-negentropy-storage.md) | Always-current (created_at, id) index so cold NEG-OPENs stop paying a full scan + seal (~340 ms at 50k vs strfry's ~21 ms). | | [2026-07-04-small-req-floor.md](2026-07-04-small-req-floor.md) | Small-REQ dispatch floor: decomposed, inline fast path tried and reverted (no wire-level win); floor is transport-side. | | [2026-08-13-gpu-pow-mining.md](2026-08-13-gpu-pow-mining.md) | GPU NIP-13 mining declined (ARMv8 has SHA-256 in silicon, mobile GPUs do not). Midstate is ~3x on JVM targets; Android hinges on Conscrypt per-digest JNI cost, still unmeasured. created_at refresh while mining shipped. | -| [2026-09-08-marmot-spec-resync.md](2026-09-08-marmot-spec-resync.md) | Marmot moved off the MIP-era spec (2026-07-02): group state split into `app_data_dictionary` components, account identity proof v2, and a convergence engine. Current MDK rejects our groups outright. Gap analysis + 8-stage plan; Stage 0 (interop reference repointed at mdk, current-profile vector generator) done. | +| [2026-09-08-marmot-spec-resync.md](2026-09-08-marmot-spec-resync.md) | Marmot moved off the MIP-era spec (2026-07-02): group state split into `app_data_dictionary` components, account identity proof v2, and a convergence engine. Current MDK rejects our groups outright. Gap analysis + 8-stage plan; Stages 0 (interop reference repointed at mdk, current-profile vector generator) and 2 (account-identity-proof v2) done. | ## Archived (shipped) | Plan | Summary | diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AppComponentIds.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AppComponentIds.kt new file mode 100644 index 0000000000..d785b4a8d9 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AppComponentIds.kt @@ -0,0 +1,110 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +/** + * Marmot app-component ids, from the spec's `foundation/registries.md`. + * + * App components are the current profile's carrier for application-owned MLS + * state: each id owns the opaque bytes stored under it in an + * `app_data_dictionary`, which can hang off a GroupContext, a LeafNode, a + * KeyPackage, or a GroupInfo. This replaced MIP-01's single monolithic + * `marmot_group_data` extension (0xF2EE), whose fields were split across + * [GROUP_PROFILE_V1], [ADMIN_POLICY_V1], [NOSTR_ROUTING_V1], + * [GROUP_BLOSSOM_IMAGE_V1] and [MESSAGE_RETENTION_V1]. + * + * Ids in `0x0000..0x7fff` are assigned by the MLS extensions draft; Marmot's + * own live in the private-use range `0x8000..0xffff`. A breaking change to a + * component gets a NEW id, never a version field inside the payload — so an + * id is a complete statement of a wire format. + */ +object AppComponentIds { + // ---- upstream, draft-ietf-mls-extensions-10 ---- + + /** `app_components`: the supported (LeafNode) or required (GroupContext) id list. */ + const val APP_COMPONENTS = 0x0001 + + /** `safe_aad`: component-separated framing for MLS `authenticated_data`. */ + const val SAFE_AAD = 0x0002 + + /** + * `last_resort_key_package`: empty-data marker in a KeyPackage's own + * dictionary. Note this is a component, NOT an MLS extension type — the + * MIP-era profile marked last resort with extension `0x000a`, which is now + * the `self_remove` PROPOSAL type. + */ + const val LAST_RESORT_KEY_PACKAGE = 0x0004 + + // ---- Marmot private range ---- + + /** `marmot.group.profile.v1` — name + description. */ + const val GROUP_PROFILE_V1 = 0x8001 + + /** `marmot.group.blossom.image.v1` — encrypted group avatar stored on Blossom. */ + const val GROUP_BLOSSOM_IMAGE_V1 = 0x8002 + + /** `marmot.group.admin-policy.v1` — the active admin account keys. */ + const val ADMIN_POLICY_V1 = 0x8003 + + /** `marmot.transport.nostr.routing.v1` — `nostr_group_id` + the group relay list. */ + const val NOSTR_ROUTING_V1 = 0x8004 + + /** `marmot.group.message-retention.v1` — disappearing-message duration. */ + const val MESSAGE_RETENTION_V1 = 0x8005 + + /** `marmot.group.agent-text-stream.quic.v1`. */ + const val AGENT_TEXT_STREAM_QUIC_V1 = 0x8006 + + /** `marmot.group.avatar-url.v1` — the plain-https alternative to Blossom images. */ + const val GROUP_AVATAR_URL_V1 = 0x8007 + + /** `marmot.group.encrypted-media.v1` — frozen; new groups use [GROUP_ENCRYPTED_MEDIA_V2]. */ + const val GROUP_ENCRYPTED_MEDIA_V1 = 0x8008 + + /** `marmot.member.account-identity-proof.v2` — leaf-only; see `AccountIdentityProofV2`. */ + const val ACCOUNT_IDENTITY_PROOF_V2 = 0x8009 + + /** `marmot.authorization.multi-device-join.v1` — draft. */ + const val MULTI_DEVICE_JOIN_V1 = 0x800a + + /** `marmot.group.encrypted-media.v2`. */ + const val GROUP_ENCRYPTED_MEDIA_V2 = 0x800b + + /** `marmot.group.lifecycle.v1` — active/disbanded. */ + const val GROUP_LIFECYCLE_V1 = 0x800c + + /** + * The `0x` + four-lowercase-hex-digit rendering used wherever a component + * id appears as text: the kind-30443 `app_components` tag values, and the + * `component` tag inside an authorization-proof signing event. + */ + fun toHex(componentId: Int): String { + require(componentId in 0..0xffff) { "component id $componentId is out of the uint16 range" } + val digits = "0123456789abcdef" + return buildString(6) { + append("0x") + append(digits[(componentId shr 12) and 0xf]) + append(digits[(componentId shr 8) and 0xf]) + append(digits[(componentId shr 4) and 0xf]) + append(digits[componentId and 0xf]) + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/accountIdentityProof/AccountIdentityProofV2.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/accountIdentityProof/AccountIdentityProofV2.kt new file mode 100644 index 0000000000..67094a1189 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/accountIdentityProof/AccountIdentityProofV2.kt @@ -0,0 +1,281 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents.accountIdentityProof + +import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds +import com.vitorpamplona.quartz.marmot.foundation.authorizationProofs.MarmotAuthorizationProof +import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.EventHasher +import com.vitorpamplona.quartz.nip01Core.signers.EventTemplate +import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner +import com.vitorpamplona.quartz.utils.TimeUtils + +/** + * `marmot.member.account-identity-proof.v2`, app component `0x8009` + * (spec `app-components/account-identity-proof-v2.md`). + * + * ## What it proves, and why it exists + * + * A Marmot member leaf carries two unrelated keys: the MLS `BasicCredential` + * identity, which is the member's raw 32-byte Nostr account key, and the MLS + * leaf signature key, which is an Ed25519 key MLS generates per device. MLS + * itself never checks that the account named by the credential agreed to the + * leaf key sitting next to it — so without this component, anyone able to + * author a leaf could claim any account's identity. That is what the proof + * closes: the account key signs a statement naming this exact leaf signature + * key, under this exact ciphersuite. + * + * ## Where it lives + * + * In the `app_data_dictionary` of a **LeafNode** — including the LeafNode + * embedded in a KeyPackage. It is invalid in a GroupContext, in a + * KeyPackage-level dictionary, in a GroupInfo, in an `AppEphemeral` proposal, + * or in a SafeAAD item. A GroupContext must *require* `0x8009` in its + * `app_components` list, but must never carry proof data itself. + * + * Consequently the component never changes through `AppDataUpdate`: it is + * created with a new or replacement LeafNode, and disappears only when that + * leaf is removed from the tree. + * + * ## Relationship to v1 + * + * This is a clean break from `marmot.account-identity-proof.v1`, the custom + * MLS extension type `0xf2f1`. There is no fallback and no in-place migration: + * a v2 client rejects a v1-only leaf, and a group that requires `0xf2f1` but + * not `0x8009` is a legacy group outside this profile. MDK classifies groups + * on exactly that distinction, and a group requiring neither is rejected + * outright. + * + * ## Freshness + * + * There is none, deliberately. [MarmotAuthorizationProof.createdAt] is signed + * but never compared against a receiver's clock: the proof authorizes a + * long-lived key binding, not a one-time operation, and a clock-based rule + * would let skew make two members disagree about the same Commit. A proof may + * be reused across KeyPackages and leaves for as long as every signed input + * stays byte-identical; a new leaf signature key, ciphersuite, signature + * scheme, or account identity requires a new proof. + */ +object AccountIdentityProofV2 { + const val COMPONENT_ID = AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2 + const val COMPONENT_NAME = "marmot.member.account-identity-proof.v2" + + /** Local signing template only — clients MUST NOT publish this kind to relays. */ + const val KIND = 450 + + /** + * The fixed proof-domain label in the `d` tag. Note it is + * `marmot.account-identity-proof.v2`, NOT [COMPONENT_NAME]: the spec pins + * the `d` values of proof events as opaque domain labels precisely so they + * are never derived from a component name. + */ + const val D_TAG_VALUE = "marmot.account-identity-proof.v2" + + const val CONTENT = "Authorize this MLS leaf key for my Marmot account" + + /** + * The exact ordered tag array of the proof event. + * + * Every element is signed, so tag order, name, arity and value all have to + * match on both sides or the reconstructed event id differs and + * verification fails. There are no other tags. + */ + fun tags( + ciphersuite: MlsCiphersuite, + mlsSignatureKey: ByteArray, + ): Array> = + arrayOf( + arrayOf("d", D_TAG_VALUE), + arrayOf("component", AppComponentIds.toHex(COMPONENT_ID)), + arrayOf("ciphersuite", ciphersuite.code), + arrayOf("signature_scheme", ciphersuite.signatureScheme), + arrayOf("mls_signature_key", mlsSignatureKey.toHexKey()), + ) + + /** + * The unsigned kind-450 event an account signer is asked to sign. + * + * [mlsSignatureKey] is the LeafNode `signature_key` opaque vector's + * contents WITHOUT its TLS length prefix. + */ + fun signingTemplate( + ciphersuite: MlsCiphersuite, + mlsSignatureKey: ByteArray, + createdAt: Long = TimeUtils.now(), + ): EventTemplate = + EventTemplate( + createdAt = createdAt, + kind = KIND, + tags = tags(ciphersuite, mlsSignatureKey), + content = CONTENT, + ) + + /** + * Ask [signer] to authorize [mlsSignatureKey] for its own account. + * + * The signed event is validated before its signature is extracted, because + * an external signer is free to return something other than what it was + * asked to sign. Anything the signer substituted — a different pubkey, + * timestamp, tag set, content, or a stale cached response — fails here + * rather than becoming a proof that silently authorizes the wrong thing. + */ + suspend fun create( + signer: NostrSigner, + ciphersuite: MlsCiphersuite, + mlsSignatureKey: ByteArray, + createdAt: Long = TimeUtils.now(), + ): MarmotAuthorizationProof { + require(createdAt in 1..MarmotAuthorizationProof.MAX_CREATED_AT) { + "account identity proof created_at must be in 1..${MarmotAuthorizationProof.MAX_CREATED_AT}" + } + val template = signingTemplate(ciphersuite, mlsSignatureKey, createdAt) + val signed: Event = signer.sign(template) + + require(signed.pubKey == signer.pubKey) { + "signer returned an account identity proof event authored by a different account" + } + require(signed.createdAt == createdAt && signed.kind == KIND && signed.content == CONTENT) { + "signer returned a different account identity proof event than requested" + } + require(tagsEqual(signed.tags, template.tags)) { + "signer altered the account identity proof event tags" + } + require( + EventHasher.hashIdCheck( + signed.id, + signed.pubKey, + signed.createdAt, + signed.kind, + signed.tags, + signed.content, + ), + ) { + "signer returned an account identity proof event whose id does not match its fields" + } + + val proof = + MarmotAuthorizationProof( + signerPubKey = signed.pubKey.hexToByteArray(), + createdAt = signed.createdAt, + signature = signed.sig.hexToByteArray(), + ) + require(proof.verifySignatureOver(KIND, template.tags, CONTENT)) { + "signer returned an account identity proof event with an invalid signature" + } + return proof + } + + /** + * Validate a proof taken from a LeafNode dictionary against the rest of + * that leaf. + * + * [credentialIdentity] is the LeafNode `BasicCredential` identity; + * [mlsSignatureKey] its signature key; [ciphersuite] the KeyPackage's + * ciphersuite when validating a KeyPackage, or the group's when validating + * a member leaf. Passing the wrong one is not a benign mismatch — it is + * how a leaf gets bound to the context it is actually used in. + */ + fun validate( + componentData: ByteArray?, + credentialIdentity: ByteArray, + mlsSignatureKey: ByteArray, + ciphersuite: MlsCiphersuite, + ): Result { + if (componentData == null) return Result.MISSING + if (componentData.size != MarmotAuthorizationProof.SIZE) return Result.MALFORMED + val proof = MarmotAuthorizationProof.decodeOrNull(componentData) ?: return Result.MALFORMED + + if (credentialIdentity.size != MarmotAuthorizationProof.PUBKEY_SIZE) { + return Result.CREDENTIAL_IDENTITY_MISMATCH + } + if (!proof.signerPubKey.contentEquals(credentialIdentity)) { + return Result.CREDENTIAL_IDENTITY_MISMATCH + } + if (!proof.verifySignatureOver(KIND, tags(ciphersuite, mlsSignatureKey), CONTENT)) { + return Result.BAD_SIGNATURE + } + return Result.VALID + } + + /** True only for [Result.VALID]; use [validate] when the reason matters. */ + fun isValid( + componentData: ByteArray?, + credentialIdentity: ByteArray, + mlsSignatureKey: ByteArray, + ciphersuite: MlsCiphersuite, + ): Boolean = validate(componentData, credentialIdentity, mlsSignatureKey, ciphersuite) == Result.VALID + + /** + * Why a leaf or KeyPackage was rejected. + * + * The spec lists a longer set of rejection conditions than this enum has + * cases, because several of them are not decidable from the proof bytes + * alone: an absent `0x8009` in the leaf's support list, more than one + * `0x8009` dictionary entry, and the component appearing at an invalid + * location are all properties of the surrounding `app_data_dictionary`. + * Those belong to the dictionary layer and are checked there. + * + * [BAD_SIGNATURE] deliberately absorbs every mismatch in a signed input — + * a wrong ciphersuite, a wrong signature scheme, or a signature over a + * different leaf key all surface identically, because all three mean the + * reconstructed event id was not what the account signed. There is nothing + * to distinguish: the verifier has no way to know which input the signer + * actually used. + */ + enum class Result { + VALID, + + /** No `0x8009` entry in the LeafNode dictionary. */ + MISSING, + + /** Present but not exactly one 104-byte [MarmotAuthorizationProof]. */ + MALFORMED, + + /** `signer_pubkey` is not the LeafNode's `BasicCredential` identity. */ + CREDENTIAL_IDENTITY_MISMATCH, + + /** The BIP-340 signature does not verify over the reconstructed event id. */ + BAD_SIGNATURE, + } + + /** The proof event id, exposed for diagnostics and test vectors. */ + fun proofEventId( + signerPubKey: HexKey, + createdAt: Long, + ciphersuite: MlsCiphersuite, + mlsSignatureKey: ByteArray, + ): ByteArray = EventHasher.hashIdBytes(signerPubKey, createdAt, KIND, tags(ciphersuite, mlsSignatureKey), CONTENT) + + private fun tagsEqual( + a: Array>, + b: Array>, + ): Boolean { + if (a.size != b.size) return false + for (i in a.indices) { + if (!a[i].contentEquals(b[i])) return false + } + return true + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/authorizationProofs/MarmotAuthorizationProof.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/authorizationProofs/MarmotAuthorizationProof.kt new file mode 100644 index 0000000000..e5c72045b1 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/authorizationProofs/MarmotAuthorizationProof.kt @@ -0,0 +1,151 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.foundation.authorizationProofs + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.EventHasher +import com.vitorpamplona.quartz.nip01Core.crypto.Nip01Crypto + +/** + * The common Marmot authorization-proof envelope (spec + * `foundation/authorization-proofs.md`). + * + * A Nostr account key authorizes protocol bytes by signing an ordinary Nostr + * event, and only this 104-byte summary of that event travels in the carrier: + * + * ```text + * struct { + * opaque signer_pubkey[32]; + * uint64 created_at; + * opaque signature[64]; + * } MarmotAuthorizationProof; + * ``` + * + * The indirection through an event exists so an external signer — NIP-46 + * bunker, NIP-55 app — can produce a proof without exposing raw BIP-340 + * signing. Every field is fixed width, so there are no length prefixes and no + * version field: the carrier's component id *is* the format version. + * + * The envelope carries neither the event id nor a copy of the event. A + * verifier rebuilds both from these bytes plus the owning proof class's + * kind/tags/content, which is what binds the signature to a specific + * authority class rather than to "some event this key once signed". + * + * Note what deliberately is NOT here: any comparison of [createdAt] against a + * local clock. A proof does not expire because its timestamp is old. Two + * members validating the same Commit must reach the same answer, and a + * wall-clock rule would let skew fork them. + */ +class MarmotAuthorizationProof( + /** Raw 32-byte x-only secp256k1 account key that signed the proof event. */ + val signerPubKey: ByteArray, + /** Unsigned Unix seconds, `1..MAX_CREATED_AT`. Signed as part of the event. */ + val createdAt: Long, + /** 64-byte BIP-340 signature over the proof event's 32-byte id. */ + val signature: ByteArray, +) { + init { + require(signerPubKey.size == PUBKEY_SIZE) { + "MarmotAuthorizationProof.signer_pubkey must be $PUBKEY_SIZE bytes, was ${signerPubKey.size}" + } + require(signature.size == SIGNATURE_SIZE) { + "MarmotAuthorizationProof.signature must be $SIGNATURE_SIZE bytes, was ${signature.size}" + } + require(createdAt in 1..MAX_CREATED_AT) { + "MarmotAuthorizationProof.created_at must be in 1..$MAX_CREATED_AT, was $createdAt" + } + } + + val signerPubKeyHex: HexKey get() = signerPubKey.toHexKey() + + fun encode(): ByteArray { + val writer = TlsWriter() + writer.putBytes(signerPubKey) + writer.putUint64(createdAt) + writer.putBytes(signature) + return writer.toByteArray() + } + + /** + * Rebuild the proof event's id from this envelope's signer/timestamp plus + * the owning proof class's [kind], [tags] and [content], then check + * [signature] against it. + * + * The caller supplies the class-specific half; getting a tag order, arity + * or value wrong yields a different id and therefore a failed check, which + * is exactly the binding the spec wants. + */ + fun verifySignatureOver( + kind: Int, + tags: Array>, + content: String, + ): Boolean { + val eventId = EventHasher.hashIdBytes(signerPubKeyHex, createdAt, kind, tags, content) + return Nip01Crypto.verify(signature, eventId, signerPubKey) + } + + companion object { + const val PUBKEY_SIZE = 32 + const val SIGNATURE_SIZE = 64 + + /** Exactly 32 + 8 + 64. A carrier entry of any other length is malformed. */ + const val SIZE = PUBKEY_SIZE + 8 + SIGNATURE_SIZE + + /** + * `2^53 - 1`. The spec caps the timestamp here so every JSON + * implementation that touches the signing event represents it exactly — + * a value that survives a round trip through a double is a value two + * clients agree on. + */ + const val MAX_CREATED_AT = 9007199254740991L + + /** + * Decode exactly [SIZE] bytes. Truncation and trailing bytes are both + * rejected: the carrier hands us a component's whole data field, and a + * dictionary entry that is not exactly one proof is malformed, not a + * proof with something appended. + */ + fun decode(bytes: ByteArray): MarmotAuthorizationProof { + require(bytes.size == SIZE) { + "MarmotAuthorizationProof must be exactly $SIZE bytes, was ${bytes.size}" + } + val reader = TlsReader(bytes) + return MarmotAuthorizationProof( + signerPubKey = reader.readBytes(PUBKEY_SIZE), + createdAt = reader.readUint64(), + signature = reader.readBytes(SIGNATURE_SIZE), + ) + } + + /** [decode] without the throw, for validators that report a reason instead. */ + fun decodeOrNull(bytes: ByteArray): MarmotAuthorizationProof? = + try { + decode(bytes) + } catch (_: IllegalArgumentException) { + null + } catch (_: IndexOutOfBoundsException) { + null + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip01Groups/MlsCiphersuite.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip01Groups/MlsCiphersuite.kt index bd800032c8..8c833f9ad7 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip01Groups/MlsCiphersuite.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip01Groups/MlsCiphersuite.kt @@ -20,6 +20,23 @@ */ package com.vitorpamplona.quartz.marmot.mip01Groups +/** + * TLS `SignatureScheme` code points used by the RFC 9420 ciphersuites, as the + * `0x`-prefixed four-digit lowercase hex that Marmot's proof events carry. + * + * These live outside [MlsCiphersuite] rather than in its companion because an + * enum's entries are initialized BEFORE its companion object, so entry + * constructor arguments cannot read companion properties. `const val` in a + * plain object is a compile-time constant and inlines cleanly. + */ +object MlsSignatureScheme { + const val ED25519 = "0x0807" + const val ED448 = "0x0808" + const val ECDSA_SECP256R1_SHA256 = "0x0403" + const val ECDSA_SECP384R1_SHA384 = "0x0503" + const val ECDSA_SECP521R1_SHA512 = "0x0603" +} + /** * MLS ciphersuites defined in RFC 9420 Section 17.1. * Marmot default: MLS_128_DHKEMX25519_AES128GCM_SHA256_Ed25519 (0x0001). @@ -28,14 +45,22 @@ enum class MlsCiphersuite( val code: String, val hashAlgorithm: String, val hashOutputBytes: Int, + /** + * The TLS `SignatureScheme` this ciphersuite implies, per RFC 9420 §17.1. + * + * It is redundant with [code] by definition, but Marmot signs it explicitly + * in the account-identity-proof event and validates it there, so the + * mapping has to be first-class rather than inferred at each call site. + */ + val signatureScheme: String, ) { - MLS_128_DHKEMX25519_AES128GCM_SHA256_ED25519("0x0001", "SHA-256", 32), - MLS_128_DHKEMP256_AES128GCM_SHA256_P256("0x0002", "SHA-256", 32), - MLS_128_DHKEMX25519_CHACHA20POLY1305_SHA256_ED25519("0x0003", "SHA-256", 32), - MLS_256_DHKEMX448_AES256GCM_SHA512_ED448("0x0004", "SHA-512", 64), - MLS_256_DHKEMP521_AES256GCM_SHA512_P521("0x0005", "SHA-512", 64), - MLS_256_DHKEMX448_CHACHA20POLY1305_SHA512_ED448("0x0006", "SHA-512", 64), - MLS_256_DHKEMP384_AES256GCM_SHA384_P384("0x0007", "SHA-384", 48), + MLS_128_DHKEMX25519_AES128GCM_SHA256_ED25519("0x0001", "SHA-256", 32, MlsSignatureScheme.ED25519), + MLS_128_DHKEMP256_AES128GCM_SHA256_P256("0x0002", "SHA-256", 32, MlsSignatureScheme.ECDSA_SECP256R1_SHA256), + MLS_128_DHKEMX25519_CHACHA20POLY1305_SHA256_ED25519("0x0003", "SHA-256", 32, MlsSignatureScheme.ED25519), + MLS_256_DHKEMX448_AES256GCM_SHA512_ED448("0x0004", "SHA-512", 64, MlsSignatureScheme.ED448), + MLS_256_DHKEMP521_AES256GCM_SHA512_P521("0x0005", "SHA-512", 64, MlsSignatureScheme.ECDSA_SECP521R1_SHA512), + MLS_256_DHKEMX448_CHACHA20POLY1305_SHA512_ED448("0x0006", "SHA-512", 64, MlsSignatureScheme.ED448), + MLS_256_DHKEMP384_AES256GCM_SHA384_P384("0x0007", "SHA-384", 48, MlsSignatureScheme.ECDSA_SECP384R1_SHA384), ; companion object { diff --git a/quartz/src/commonTest/resources/mls/marmot-current-profile.json b/quartz/src/commonTest/resources/mls/marmot-current-profile.json index 990effea03..9c3659a373 100644 --- a/quartz/src/commonTest/resources/mls/marmot-current-profile.json +++ b/quartz/src/commonTest/resources/mls/marmot-current-profile.json @@ -1,31 +1,31 @@ { - "add_commit_public_message": "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", + "add_commit_public_message": "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", "app_messages_alice_to_bob": [ { "plaintext": "48656c6c6f20426f6221", - "private_message": "000100021058b3ff7a7dcea415fd50f694576fe3e5000000000000000101001c12c465a57743d0504b0628eb8f4f482bf7eb6c790feed11c25e92457405d2c8fc2a14b0ecfa1117fdb858ba1633847267a556f509fabeef97e22074e299b26286ecc18f52da7a065e046292804a517cd27e9c8ce7e4faa154aedfc065a0c9e24d21187bace68a0ade9bf7b317552a2ee83f31af094f36ab155e357" + "private_message": "00010002100efc4b241ee7fa07af1654c4ccd9fb97000000000000000101001c651142a0f45272b7bb644d08dd14c9feac7655707c3eda67909ba1fb405d228abdb825fb7c19e4c23b114d0f1d2ad8d4fd5c04b32c7b2c9d65f70446f5724531570ac3a8f33119fd3f165789108b1abfd3dffbc54ddafe13a4908025020ce9453556a273d37f219f21fdfe0aa538b7602a66c828c34516161687e4" }, { "plaintext": "5365636f6e64206d65737361676520696e207468652073616d652065706f63682e", - "private_message": "000100021058b3ff7a7dcea415fd50f694576fe3e5000000000000000101001ce42f14d203be2d20c6cb94aa51a0394e4233e7af52df9707e0cfe0fa4074d155bb71e0f30beec4b2aa64f2afb45e2376bc05a4c935f6033d6200be8f42c5b81178238c0db0f925f9a0abeb62fee44d7fbd1bebe14980775d9bcc8566657811f9150c28f86155a2e895a3cced47e6f0b3162c87e588761b029edfe58274e8e09cc0a32bfd9e9fce8498b75a9fd970b71bf4c4" + "private_message": "00010002100efc4b241ee7fa07af1654c4ccd9fb97000000000000000101001cd57df6ee609a8bc9cc3a2d251da43bdfcad7efd0c7f68aeda3d01fa640748cc74fa7b699d54eced431ba1dcfeed72dbc9a2149636ed23c3e965b85d96631105923d64f8dad10b2ed58a5744282604f833c6cfa39988dc91ae1e01effa75671458c3aa92d1ac2c4175b2be59fd795d6d16bf633dcd97ede33771c99bc1f520fe339eaf2050db51600f54e49f5a826c5548aa9" } ], "cipher_suite": 1, "committer": { "account_identity_proof": { - "component": "defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34000000006553f100725ed9e4a85cc98dd5963095a941d29f4d6de79ab486a196fbe137eea10ad5f9678748b25045d9ecd67e621f4ffc6d42c1d1247e62c3a4f391f105f3d7202894", + "component": "defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34000000006553f10054cc3cba8b570281dbb66f7a3622a6859f134e9722e8bf11875de835a26a84fcd86d2bba926fcd930a85feb3d0cd27b75d64c91a09b89e2364c862c03ad4da77", "created_at": 1700000000, - "event_id": "8915534faaa884893c2b09d411c4f83232026a1468687002d95073468d800cf0", - "event_json": "[0,\"defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34\",1700000000,450,[[\"d\",\"marmot.account-identity-proof.v2\"],[\"component\",\"0x8009\"],[\"ciphersuite\",\"0x0001\"],[\"signature_scheme\",\"0x0807\"],[\"mls_signature_key\",\"d73d15dffb68fea7694378e9e38748e43d11ec5e011e3e981282bbd197d748f9\"]],\"Authorize this MLS leaf key for my Marmot account\"]", - "signature": "725ed9e4a85cc98dd5963095a941d29f4d6de79ab486a196fbe137eea10ad5f9678748b25045d9ecd67e621f4ffc6d42c1d1247e62c3a4f391f105f3d7202894" + "event_id": "1212428859542925c6826d54d646f4f847097c9a3ab0c81df6820e4c806faeaf", + "event_json": "[0,\"defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34\",1700000000,450,[[\"d\",\"marmot.account-identity-proof.v2\"],[\"component\",\"0x8009\"],[\"ciphersuite\",\"0x0001\"],[\"signature_scheme\",\"0x0807\"],[\"mls_signature_key\",\"48470c71d0897f8ea1d31a83dd07bb11838b761010646e714ae4266f2c5f107b\"]],\"Authorize this MLS leaf key for my Marmot account\"]", + "signature": "54cc3cba8b570281dbb66f7a3622a6859f134e9722e8bf11875de835a26a84fcd86d2bba926fcd930a85feb3d0cd27b75d64c91a09b89e2364c862c03ad4da77" }, "account_pubkey": "defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34", "leaf_dictionary": { "0x0001": "0c00018001800380048009800c", "0x0002": "00", - "0x8009": "defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34000000006553f100725ed9e4a85cc98dd5963095a941d29f4d6de79ab486a196fbe137eea10ad5f9678748b25045d9ecd67e621f4ffc6d42c1d1247e62c3a4f391f105f3d7202894" + "0x8009": "defdea4cdb677750a420fee807eacf21eb9898ae79b9768766e4faa04a2d4a34000000006553f10054cc3cba8b570281dbb66f7a3622a6859f134e9722e8bf11875de835a26a84fcd86d2bba926fcd930a85feb3d0cd27b75d64c91a09b89e2364c862c03ad4da77" }, - "signer_pub": "d73d15dffb68fea7694378e9e38748e43d11ec5e011e3e981282bbd197d748f9" + "signature_pub": "48470c71d0897f8ea1d31a83dd07bb11838b761010646e714ae4266f2c5f107b" }, "component_ids": { "account_identity_proof_v2": "0x8009", @@ -40,7 +40,7 @@ "description": "Current-profile Marmot group (app_data_dictionary + account-identity-proof v2), built on the OpenMLS extensions-draft fork MDK pins.", "exporters": { "convergence_conformance_v1": { - "commitment": "33c6245e99921e4d122e819d26d6a7d6d1c4888fdb3a560d6d30781afbb78f70", + "commitment": "31ac8c4b984283226bd1be34e0bb0e395cf1a8d446d6ff67257121e73b648141", "context": "636f6e76657267656e63652d636f6e666f726d616e63652d7631", "label": "marmot", "length": 32 @@ -49,7 +49,7 @@ "context": "67726f75702d6576656e74", "label": "marmot", "length": 32, - "secret": "b75b3ceac7a9a9439ee146cbdf84a1305805acefec8d6ffd41c4690d6f9ea574" + "secret": "42e251db82e0775546aed3f687b1196bce518a98c0774cfe6e779f9f69f031e1" } }, "group_state": { @@ -81,26 +81,26 @@ "handshake_wire_format": "public_message", "joiner": { "account_identity_proof": { - "component": "1be68a5a028f2601d0e80d468c344ba331d611b96c358b6032e8b4da0547fc11000000006553f10009d497513391541c32fcaf208440252d654c0f67aa8bcc3a58ff9cc6fa0dc9cb9691fbed684e0958b21d2057418e3e70d2c11d17f14278bf82fefa9228b00c6e", + "component": "1be68a5a028f2601d0e80d468c344ba331d611b96c358b6032e8b4da0547fc11000000006553f100cad9be57e90afcfb5c2e25f4f775d33fb3d4bd9a244079a1dcf83f24ee9ceff5309395bf4b50a89af5423634e9ae7397a511e67cca801aa481c98ef08f00e667", "created_at": 1700000000, - "event_id": "81e5ab834204d79cbeab9d475d7c1f0f74bdbf1e55f321bd4e8bbcb79da4db95", - "event_json": "[0,\"1be68a5a028f2601d0e80d468c344ba331d611b96c358b6032e8b4da0547fc11\",1700000000,450,[[\"d\",\"marmot.account-identity-proof.v2\"],[\"component\",\"0x8009\"],[\"ciphersuite\",\"0x0001\"],[\"signature_scheme\",\"0x0807\"],[\"mls_signature_key\",\"3eb99cd422e76ed22ed3a815d4f02405198c762ceeb9e63dacd54a402f455f1f\"]],\"Authorize this MLS leaf key for my Marmot account\"]", - "signature": "09d497513391541c32fcaf208440252d654c0f67aa8bcc3a58ff9cc6fa0dc9cb9691fbed684e0958b21d2057418e3e70d2c11d17f14278bf82fefa9228b00c6e" + "event_id": "abf9bc8bcac31bc1c750cf78faace4d4ff7f9c1ca5087016c4fbc7e07de50025", + "event_json": "[0,\"1be68a5a028f2601d0e80d468c344ba331d611b96c358b6032e8b4da0547fc11\",1700000000,450,[[\"d\",\"marmot.account-identity-proof.v2\"],[\"component\",\"0x8009\"],[\"ciphersuite\",\"0x0001\"],[\"signature_scheme\",\"0x0807\"],[\"mls_signature_key\",\"278bcb4e598449abf7cb17bc31eb8f690337bae03bf15a9e41acc19573524e92\"]],\"Authorize this MLS leaf key for my Marmot account\"]", + "signature": "cad9be57e90afcfb5c2e25f4f775d33fb3d4bd9a244079a1dcf83f24ee9ceff5309395bf4b50a89af5423634e9ae7397a511e67cca801aa481c98ef08f00e667" }, "account_pubkey": "1be68a5a028f2601d0e80d468c344ba331d611b96c358b6032e8b4da0547fc11", - "encryption_priv": "698980352ccbedd93b48c0dfa8570e25e5910eb5d5990e862fd78e1df7f1c320", - "init_priv": "1c4da405915323129e5d493c780735b836042d57b22704cc5fb7081c4cf1cc1a", - "key_package": "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", + "encryption_priv": "af2f5f9d1e3b7492951341e27e826aa93352a33c8cfe7c68dba6d9a6ff823bc5", + "init_priv": "db81a81e9c2f7dec549950c314d81881b3f9206b922ac2da1e3cd06b7c0279bc", + "key_package": "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", "key_package_dictionary": { "0x0004": "" }, "leaf_dictionary": { "0x0001": "0c00018001800380048009800c", "0x0002": "00", - "0x8009": "1be68a5a028f2601d0e80d468c344ba331d611b96c358b6032e8b4da0547fc11000000006553f10009d497513391541c32fcaf208440252d654c0f67aa8bcc3a58ff9cc6fa0dc9cb9691fbed684e0958b21d2057418e3e70d2c11d17f14278bf82fefa9228b00c6e" + "0x8009": "1be68a5a028f2601d0e80d468c344ba331d611b96c358b6032e8b4da0547fc11000000006553f100cad9be57e90afcfb5c2e25f4f775d33fb3d4bd9a244079a1dcf83f24ee9ceff5309395bf4b50a89af5423634e9ae7397a511e67cca801aa481c98ef08f00e667" }, - "signature_priv": "262dcc11eb77d04576b435a4eca5aa1116f7c025587f917684b2ad94166a5007", - "signature_pub": "3eb99cd422e76ed22ed3a815d4f02405198c762ceeb9e63dacd54a402f455f1f" + "signature_priv": "b6fa3e80625315875499f8ea509de3014f315e1e07e9c61e043ffefbdf871614", + "signature_pub": "278bcb4e598449abf7cb17bc31eb8f690337bae03bf15a9e41acc19573524e92" }, "profile": "current", "required_capabilities": { @@ -112,5 +112,5 @@ ] }, "signature_scheme": 2055, - "welcome": 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+ "welcome": "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" } diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AccountIdentityProofV2Test.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AccountIdentityProofV2Test.kt new file mode 100644 index 0000000000..f5117d3ddf --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AccountIdentityProofV2Test.kt @@ -0,0 +1,330 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.appComponents.accountIdentityProof.AccountIdentityProofV2 +import com.vitorpamplona.quartz.marmot.foundation.authorizationProofs.MarmotAuthorizationProof +import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertNotEquals +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * `marmot.member.account-identity-proof.v2` against the fixed vector published + * in the spec (`app-components/account-identity-proof-v2.md`, "Signing test + * vector"). + * + * This vector is the whole reason Stage 2 could be built before the + * `app_data_dictionary` carrier exists: it pins the canonical event + * serialization, the event id, the BIP-340 signature and the 104-byte + * component layout independently of any MLS plumbing. If these pass, a proof + * we emit is one MDK accepts. + */ +class AccountIdentityProofV2Test { + // BIP-340 secret key 3 — test material from the spec, never a real key. + private val accountPubKey = "f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9" + private val mlsSignatureKey = "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f".hexToByteArray() + private val createdAt = 1700000000L + private val expectedEventId = "b7e9a15dd85990fb0f49c33db3cc9875f73986207b038404ceb6b7fec4e0af6b" + private val expectedSignature = + "c5315d3c85b9d4907cb03395a2a97b3ba2eab393f8e45b13a5d5233acedac60a" + + "51d2a295e1b1b5ee372d18a49bdb8041a7dba9dedce722c7c6f712f78bbdfb5d" + private val expectedComponent = + "f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9" + + "000000006553f100" + + expectedSignature + + private val ciphersuite = MlsCiphersuite.DEFAULT + + private fun specProof() = + MarmotAuthorizationProof( + signerPubKey = accountPubKey.hexToByteArray(), + createdAt = createdAt, + signature = expectedSignature.hexToByteArray(), + ) + + @Test + fun specVectorTagsAreExactAndOrdered() { + val tags = AccountIdentityProofV2.tags(ciphersuite, mlsSignatureKey) + assertEquals(5, tags.size, "the proof event has exactly five tags") + assertContentEquals(arrayOf("d", "marmot.account-identity-proof.v2"), tags[0]) + assertContentEquals(arrayOf("component", "0x8009"), tags[1]) + assertContentEquals(arrayOf("ciphersuite", "0x0001"), tags[2]) + assertContentEquals(arrayOf("signature_scheme", "0x0807"), tags[3]) + assertContentEquals( + arrayOf("mls_signature_key", "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"), + tags[4], + ) + } + + @Test + fun specVectorEventId() { + assertEquals( + expectedEventId, + AccountIdentityProofV2 + .proofEventId(accountPubKey, createdAt, ciphersuite, mlsSignatureKey) + .toHexKey(), + ) + } + + @Test + fun specVectorComponentBytes() { + assertEquals(MarmotAuthorizationProof.SIZE, specProof().encode().size) + assertEquals(expectedComponent, specProof().encode().toHexKey()) + } + + @Test + fun specVectorComponentRoundTrips() { + val decoded = MarmotAuthorizationProof.decode(expectedComponent.hexToByteArray()) + assertEquals(accountPubKey, decoded.signerPubKeyHex) + assertEquals(createdAt, decoded.createdAt) + assertEquals(expectedSignature, decoded.signature.toHexKey()) + assertContentEquals(expectedComponent.hexToByteArray(), decoded.encode()) + } + + @Test + fun specVectorValidates() { + assertEquals( + AccountIdentityProofV2.Result.VALID, + AccountIdentityProofV2.validate( + componentData = expectedComponent.hexToByteArray(), + credentialIdentity = accountPubKey.hexToByteArray(), + mlsSignatureKey = mlsSignatureKey, + ciphersuite = ciphersuite, + ), + ) + } + + // --- every signed input actually binds ------------------------------------ + + @Test + fun aDifferentLeafSignatureKeyFailsVerification() { + val otherLeafKey = ByteArray(32) { 0x7f } + assertEquals( + AccountIdentityProofV2.Result.BAD_SIGNATURE, + AccountIdentityProofV2.validate( + expectedComponent.hexToByteArray(), + accountPubKey.hexToByteArray(), + otherLeafKey, + ciphersuite, + ), + "the proof must not carry over to a different MLS leaf key", + ) + } + + @Test + fun aDifferentCiphersuiteFailsVerification() { + // 0x0003 shares Ed25519 with 0x0001, so only the `ciphersuite` tag + // differs — the narrowest possible way to get this wrong. + assertEquals( + AccountIdentityProofV2.Result.BAD_SIGNATURE, + AccountIdentityProofV2.validate( + expectedComponent.hexToByteArray(), + accountPubKey.hexToByteArray(), + mlsSignatureKey, + MlsCiphersuite.MLS_128_DHKEMX25519_CHACHA20POLY1305_SHA256_ED25519, + ), + "the ciphersuite is a signed input even when the signature scheme is unchanged", + ) + } + + @Test + fun aDifferentCredentialIdentityIsRejectedBeforeCrypto() { + assertEquals( + AccountIdentityProofV2.Result.CREDENTIAL_IDENTITY_MISMATCH, + AccountIdentityProofV2.validate( + expectedComponent.hexToByteArray(), + ByteArray(32) { 0x01 }, + mlsSignatureKey, + ciphersuite, + ), + ) + } + + @Test + fun missingAndMalformedComponents() { + assertEquals( + AccountIdentityProofV2.Result.MISSING, + AccountIdentityProofV2.validate(null, accountPubKey.hexToByteArray(), mlsSignatureKey, ciphersuite), + ) + val bytes = expectedComponent.hexToByteArray() + assertEquals( + AccountIdentityProofV2.Result.MALFORMED, + AccountIdentityProofV2.validate( + bytes.copyOf(bytes.size - 1), + accountPubKey.hexToByteArray(), + mlsSignatureKey, + ciphersuite, + ), + "a truncated component is malformed", + ) + assertEquals( + AccountIdentityProofV2.Result.MALFORMED, + AccountIdentityProofV2.validate( + bytes + 0x00, + accountPubKey.hexToByteArray(), + mlsSignatureKey, + ciphersuite, + ), + "trailing bytes are malformed, not an appended proof", + ) + } + + @Test + fun aFlippedSignatureBitFails() { + val tampered = expectedComponent.hexToByteArray() + tampered[tampered.size - 1] = (tampered[tampered.size - 1].toInt() xor 0x01).toByte() + assertEquals( + AccountIdentityProofV2.Result.BAD_SIGNATURE, + AccountIdentityProofV2.validate( + tampered, + accountPubKey.hexToByteArray(), + mlsSignatureKey, + ciphersuite, + ), + ) + } + + // --- envelope bounds ------------------------------------------------------ + + @Test + fun createdAtZeroIsRejected() { + assertFailsWith("created_at 0 is never a valid signing timestamp") { + MarmotAuthorizationProof( + accountPubKey.hexToByteArray(), + 0L, + expectedSignature.hexToByteArray(), + ) + } + } + + @Test + fun createdAtAboveTheJsonSafeIntegerIsRejected() { + assertFailsWith { + MarmotAuthorizationProof( + accountPubKey.hexToByteArray(), + MarmotAuthorizationProof.MAX_CREATED_AT + 1, + expectedSignature.hexToByteArray(), + ) + } + } + + @Test + fun aCreatedAtWithTheTopBitSetDecodesAsOutOfRange() { + // uint64 on the wire, Long in Kotlin: a value past 2^63 reads back + // negative, which the bounds check has to catch rather than wrap. + val hostile = + accountPubKey.hexToByteArray() + + ByteArray(8) { 0xff.toByte() } + + expectedSignature.hexToByteArray() + assertEquals(MarmotAuthorizationProof.SIZE, hostile.size) + assertNull(MarmotAuthorizationProof.decodeOrNull(hostile)) + assertEquals( + AccountIdentityProofV2.Result.MALFORMED, + AccountIdentityProofV2.validate( + hostile, + accountPubKey.hexToByteArray(), + mlsSignatureKey, + ciphersuite, + ), + ) + } + + // --- production round trip ------------------------------------------------ + + @Test + fun createThenValidateRoundTrip() = + runBlocking { + val keyPair = KeyPair() + val signer = NostrSignerInternal(keyPair) + val leafKey = ByteArray(32) { it.toByte() } + + val proof = AccountIdentityProofV2.create(signer, ciphersuite, leafKey, createdAt) + + assertEquals(signer.pubKey, proof.signerPubKeyHex) + assertEquals(createdAt, proof.createdAt) + assertEquals( + AccountIdentityProofV2.Result.VALID, + AccountIdentityProofV2.validate( + proof.encode(), + keyPair.pubKey, + leafKey, + ciphersuite, + ), + ) + } + + @Test + fun aProofDoesNotCarryToAnotherAccount() = + runBlocking { + val leafKey = ByteArray(32) { it.toByte() } + val alice = KeyPair() + val bob = KeyPair() + val proof = AccountIdentityProofV2.create(NostrSignerInternal(alice), ciphersuite, leafKey, createdAt) + + assertNotEquals(alice.pubKey.toHexKey(), bob.pubKey.toHexKey()) + assertEquals( + AccountIdentityProofV2.Result.CREDENTIAL_IDENTITY_MISMATCH, + AccountIdentityProofV2.validate(proof.encode(), bob.pubKey, leafKey, ciphersuite), + "Alice's proof must not authenticate a leaf claiming to be Bob", + ) + } + + @Test + fun reuseIsAllowedOnlyWhileEverySignedInputIsIdentical() = + runBlocking { + val signer = NostrSignerInternal(KeyPair()) + val leafKey = ByteArray(32) { it.toByte() } + val first = AccountIdentityProofV2.create(signer, ciphersuite, leafKey, createdAt) + val second = AccountIdentityProofV2.create(signer, ciphersuite, leafKey, createdAt) + + // Same inputs, same signed event: either proof validates for the + // other's leaf. (BIP-340 signatures need not be byte-identical, so + // compare behaviour rather than bytes.) + assertTrue( + AccountIdentityProofV2.isValid(first.encode(), signer.pubKey.hexToByteArray(), leafKey, ciphersuite), + ) + assertTrue( + AccountIdentityProofV2.isValid(second.encode(), signer.pubKey.hexToByteArray(), leafKey, ciphersuite), + ) + + val rotatedLeafKey = ByteArray(32) { (it + 1).toByte() } + assertEquals( + AccountIdentityProofV2.Result.BAD_SIGNATURE, + AccountIdentityProofV2.validate( + first.encode(), + signer.pubKey.hexToByteArray(), + rotatedLeafKey, + ciphersuite, + ), + "rotating the MLS leaf key requires a fresh proof", + ) + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotCurrentProfileVectorTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotCurrentProfileVectorTest.kt new file mode 100644 index 0000000000..3fbfd200f8 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotCurrentProfileVectorTest.kt @@ -0,0 +1,198 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.TestResourceLoader +import com.vitorpamplona.quartz.marmot.appComponents.accountIdentityProof.AccountIdentityProofV2 +import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite +import com.vitorpamplona.quartz.nip01Core.core.JsonMapper +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlinx.serialization.SerialName +import kotlinx.serialization.Serializable +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertNotNull +import kotlin.test.assertTrue + +/** + * Validates the account-identity proofs in `marmot-current-profile.json`, + * generated by `quartz/tools/mdk-vector-gen`'s `marmot-profile-gen` against the + * OpenMLS fork MDK builds on. + * + * `AccountIdentityProofV2Test` proves we match the spec's published fixture. + * This proves we match proofs produced by a *separate implementation* of that + * spec, for randomly generated keys — which is the property that actually + * matters for interop, and the one a fixed vector cannot establish. + * + * Everything else this vector carries (the `app_data_dictionary` framing, the + * Welcome, the Add commit) is Stage 1/3 work; the assertions here stay on the + * proof component and the registry ids so the test is meaningful today rather + * than aspirational. + */ +class MarmotCurrentProfileVectorTest { + @Serializable + private data class Proof( + val component: String, + @SerialName("created_at") val createdAt: Long, + @SerialName("event_id") val eventId: String, + val signature: String, + ) + + @Serializable + private data class Party( + @SerialName("account_pubkey") val accountPubKey: String, + @SerialName("signature_pub") val signaturePub: String, + @SerialName("leaf_dictionary") val leafDictionary: Map, + @SerialName("account_identity_proof") val proof: Proof, + ) + + @Serializable + private data class ComponentIds( + @SerialName("app_components") val appComponents: String, + @SerialName("safe_aad") val safeAad: String, + @SerialName("last_resort_key_package") val lastResort: String, + @SerialName("group_profile_v1") val groupProfile: String, + @SerialName("admin_policy_v1") val adminPolicy: String, + @SerialName("nostr_routing_v1") val nostrRouting: String, + @SerialName("account_identity_proof_v2") val accountIdentityProof: String, + @SerialName("group_lifecycle_v1") val groupLifecycle: String, + ) + + @Serializable + private data class Vector( + @SerialName("cipher_suite") val cipherSuite: Int, + @SerialName("signature_scheme") val signatureScheme: Int, + val profile: String, + @SerialName("component_ids") val componentIds: ComponentIds, + val committer: Party, + val joiner: Party, + ) + + private val vector: Vector = + JsonMapper.jsonInstance.decodeFromString( + TestResourceLoader().loadString("mls/marmot-current-profile.json"), + ) + + private val ciphersuite = MlsCiphersuite.DEFAULT + + private fun assertProofHolds( + label: String, + party: Party, + ) { + val leafKey = party.signaturePub.hexToByteArray() + + assertEquals( + party.proof.eventId, + AccountIdentityProofV2 + .proofEventId(party.accountPubKey, party.proof.createdAt, ciphersuite, leafKey) + .toHexKey(), + "$label: our kind-450 event id must match the generator's", + ) + + assertEquals( + AccountIdentityProofV2.Result.VALID, + AccountIdentityProofV2.validate( + componentData = party.proof.component.hexToByteArray(), + credentialIdentity = party.accountPubKey.hexToByteArray(), + mlsSignatureKey = leafKey, + ciphersuite = ciphersuite, + ), + "$label: externally generated proof must validate", + ) + + val fromDictionary = party.leafDictionary[AppComponentIds.toHex(AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2)] + assertNotNull(fromDictionary, "$label: leaf dictionary must carry a 0x8009 entry") + assertEquals( + party.proof.component, + fromDictionary, + "$label: the 0x8009 dictionary entry is the proof component verbatim", + ) + } + + @Test + fun theVectorIsACurrentProfileGroupOnOurDefaultCiphersuite() { + assertEquals("current", vector.profile) + assertEquals(ciphersuite.code, "0x${vector.cipherSuite.toString(16).padStart(4, '0')}") + assertEquals(ciphersuite.signatureScheme, "0x${vector.signatureScheme.toString(16).padStart(4, '0')}") + } + + @Test + fun ourRegistryIdsMatchTheGeneratorRegistry() { + val ids = vector.componentIds + assertEquals(ids.appComponents, AppComponentIds.toHex(AppComponentIds.APP_COMPONENTS)) + assertEquals(ids.safeAad, AppComponentIds.toHex(AppComponentIds.SAFE_AAD)) + assertEquals(ids.lastResort, AppComponentIds.toHex(AppComponentIds.LAST_RESORT_KEY_PACKAGE)) + assertEquals(ids.groupProfile, AppComponentIds.toHex(AppComponentIds.GROUP_PROFILE_V1)) + assertEquals(ids.adminPolicy, AppComponentIds.toHex(AppComponentIds.ADMIN_POLICY_V1)) + assertEquals(ids.nostrRouting, AppComponentIds.toHex(AppComponentIds.NOSTR_ROUTING_V1)) + assertEquals(ids.accountIdentityProof, AppComponentIds.toHex(AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2)) + assertEquals(ids.groupLifecycle, AppComponentIds.toHex(AppComponentIds.GROUP_LIFECYCLE_V1)) + } + + @Test + fun theCommitterProofValidates() = assertProofHolds("committer", vector.committer) + + @Test + fun theJoinerProofValidates() = assertProofHolds("joiner", vector.joiner) + + @Test + fun theTwoProofsAreNotInterchangeable() { + // Different accounts AND different leaf keys, so this catches a + // validator that ignored either binding. + assertTrue(vector.committer.accountPubKey != vector.joiner.accountPubKey) + assertTrue(vector.committer.signaturePub != vector.joiner.signaturePub) + + assertEquals( + AccountIdentityProofV2.Result.CREDENTIAL_IDENTITY_MISMATCH, + AccountIdentityProofV2.validate( + vector.committer.proof.component + .hexToByteArray(), + vector.joiner.accountPubKey.hexToByteArray(), + vector.joiner.signaturePub.hexToByteArray(), + ciphersuite, + ), + ) + assertEquals( + AccountIdentityProofV2.Result.BAD_SIGNATURE, + AccountIdentityProofV2.validate( + vector.committer.proof.component + .hexToByteArray(), + vector.committer.accountPubKey.hexToByteArray(), + vector.joiner.signaturePub.hexToByteArray(), + ciphersuite, + ), + ) + } + + @Test + fun everyLeafDictionaryAdvertisesTheProofAndSafeAad() { + // The dictionary decoder is Stage 1; assert the entry set here so a + // regression in what the generator emits is caught early. + for ((label, party) in listOf("committer" to vector.committer, "joiner" to vector.joiner)) { + assertEquals( + setOf("0x0001", "0x0002", "0x8009"), + party.leafDictionary.keys, + "$label: a member leaf carries the supported list, safe_aad, and the proof", + ) + } + } +} diff --git a/quartz/tools/mdk-vector-gen/src/marmot_profile_gen.rs b/quartz/tools/mdk-vector-gen/src/marmot_profile_gen.rs index e896ab8ab1..1f8dbcf8b4 100644 --- a/quartz/tools/mdk-vector-gen/src/marmot_profile_gen.rs +++ b/quartz/tools/mdk-vector-gen/src/marmot_profile_gen.rs @@ -528,7 +528,9 @@ fn main() { }, "committer": { "account_pubkey": hex::encode(alice.account_xonly), - "signer_pub": hex::encode(alice.signer.public()), + // Same key name as the joiner's: both are that member's MLS leaf + // signature public key, and one concept gets one name. + "signature_pub": hex::encode(alice.signer.public()), "leaf_dictionary": alice_leaf_dict, "account_identity_proof": { "component": hex::encode(&alice_proof.component), From 9eee9a719ce4b9cb58ecb9f3a537cf7b5524dc24 Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 15:33:58 +0000 Subject: [PATCH 04/79] feat(marmot): implement the MLS extensions draft's app_data_dictionary carrier MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Stage 1 of the Marmot resync, and the foundation the rest of it needs. The current profile keeps every piece of application-owned group state in the draft-ietf-mls-extensions `app_data_dictionary` rather than in a bespoke extension, so nothing downstream can be built without it. Adds ComponentData, AppDataDictionary (extension 0x0006) and the ComponentsList payload shared by app_components (0x0001) and safe_aad (0x0002); the AppDataUpdate proposal (0x0008) with its update/remove operations, wired through MlsGroup on both the committing and receiving paths; and reads last-resort as the KeyPackage-level 0x0004 component rather than an MLS extension type, which is what the MIP-era profile used 0x000a for — a value that now means the self_remove proposal. Building a dictionary sorts its entries; decoding refuses to. A receiver that silently sorted would accept two encodings of one dictionary, and since the dictionary sits inside signed LeafNodes and the GroupContext, two peers would then hold bytes they each considered valid and disagree about which is canonical. Same reasoning for ComponentsList and for rejecting trailing bytes. Two application rules are taken from openmls rather than inferred, because both change the resulting GroupContext and therefore the epoch key schedule: AppDataUpdate applies after the rest of the proposal list, so a GroupContextExtensions proposal in the same commit is already reflected regardless of list order; and the dictionary extension is added-or-replaced in place and never dropped, so removing the last component leaves an empty dictionary rather than no extension. MLS leaves update-payload semantics to the application — openmls hands the proposals back unresolved because a payload can be an arbitrary diff. Every Marmot component document defines its update as a full replacement state, so resolution here is the identity function; that assumption is documented where a future diff-shaped component would have to break it. Twelve tests parse the MDK-generated KeyPackage in marmot-current-profile.json end to end — MLSMessage, KeyPackage, LeafNode, dictionary, components — and re-encode the dictionary byte-identically. A JSON echo of the component map could not establish that: the generator would just be handing back what it was told to write. Nine more cover the proposal wire format and its group-level application, including two members converging on the same dictionary across the separate receive path. Full quartz jvmTest: 4,507 tests, 0 failures. One gap is left open on purpose and marked at the source: the MIP-era authorization gates read marmot_group_data (0xF2EE), which a current-profile group does not have, so both return without enforcing anything there. The admin-policy component closes that in Stage 3. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- quartz/plans/2026-09-08-marmot-spec-resync.md | 44 ++- quartz/plans/README.md | 2 +- .../mls/components/AppDataDictionary.kt | 182 +++++++++++ .../marmot/mls/components/ComponentData.kt | 74 +++++ .../marmot/mls/components/ComponentsList.kt | 118 +++++++ .../quartz/marmot/mls/group/MlsGroup.kt | 136 +++++++- .../quartz/marmot/mls/messages/Proposal.kt | 105 +++++++ .../AppDataDictionaryInteropTest.kt | 295 ++++++++++++++++++ .../components/AppDataUpdateProposalTest.kt | 220 +++++++++++++ 9 files changed, 1159 insertions(+), 17 deletions(-) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataDictionary.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/components/ComponentData.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/components/ComponentsList.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataDictionaryInteropTest.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataUpdateProposalTest.kt diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index 092272ed14..75545d8d91 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -1,6 +1,6 @@ # Marmot: resync against the adopted spec and current MDK -Status: Stages 0 and 2 done. Stages 1, 3-7 open. +Status: Stages 0, 1 and 2 done. Stages 3-7 open. Sources checked on 2026-09-08: @@ -276,10 +276,44 @@ Each stage is independently shippable and independently testable. toolchain and a local relay. A human run of `marmot-interop-headless.sh` is the acceptance test, and is likely to surface at least the retry behaviour the old patch used to paper over. -**Stage 1 — MLS extensions draft in Quartz (large, foundational).** -`AppDataDictionary` / `ComponentData` TLS codecs; `app_components` (`0x0001`) and `safe_aad` -(`0x0002`); `AppDataUpdate` proposal (`0x0008`) through `MlsGroup` staging/validation; -last-resort as KeyPackage component `0x0004`. Everything else depends on this. +**Stage 1 — MLS extensions draft in Quartz. DONE.** + +- `marmot/mls/components/` — `ComponentData`, `AppDataDictionary` (extension `0x0006`) and the + `ComponentsList` payload shared by `app_components` (`0x0001`) and `safe_aad` (`0x0002`). + Building a dictionary sorts for you; *decoding* rejects out-of-order or duplicate entries + rather than normalizing them, because a receiver that silently sorted would accept two + encodings of one dictionary and then disagree with a peer about the signed bytes. +- `Proposal.AppDataUpdate` (`0x0008`), including its `update`/`remove` operations, wired + through `MlsGroup` on both the committing and receiving paths, plus `proposeAppDataUpdate` / + `proposeAppDataRemoval` / `appDataDictionary()`. +- Last resort is read as the KeyPackage-level `0x0004` component, not an MLS extension type. + +Two application rules were taken from openmls rather than guessed, because both change the +resulting GroupContext bytes and therefore the epoch key schedule: + +1. `AppDataUpdate` applies AFTER the rest of the proposal list, so a `GroupContextExtensions` + proposal in the same commit is already reflected — regardless of list order. +2. The dictionary extension is added-or-replaced in place and never dropped, even when the + last component is removed. An absent extension and an empty dictionary are different + GroupContexts. + +MLS deliberately leaves update-payload semantics to the application (openmls hands the +proposals back unresolved). Every Marmot component defines its update as a full replacement +state, so resolution here is the identity function; a future diff-shaped component would have +to resolve before this layer. + +Verified: 12 tests parse the MDK-generated KeyPackage in `marmot-current-profile.json` all the +way down — MLSMessage → KeyPackage → LeafNode → dictionary → components — and re-encode the +dictionary byte-identically (it sits inside the signed LeafNode, so a one-byte difference +would invalidate the signature). 9 more cover the proposal wire format and its group-level +application, including two members converging on the same dictionary across the receive path. +Full `:quartz:jvmTest`: 4,507 tests, 0 failures. + +Known gap, deliberately left for Stage 3: `enforceAuthorizedProposalSet` and +`enforceNoAdminDepletion` read MIP-01's `marmot_group_data` (`0xF2EE`). A current-profile group +has no such extension, so both gates return without enforcing anything — an `AppDataUpdate` in +such a group is currently unauthorized by us. The admin-policy component (`0x8003`) is what +closes it. **Stage 2 — account identity proof v2 (`0x8009`). DONE.** diff --git a/quartz/plans/README.md b/quartz/plans/README.md index 47acb67e2b..c766c18e83 100644 --- a/quartz/plans/README.md +++ b/quartz/plans/README.md @@ -10,7 +10,7 @@ _Audited 2026-09-08. 12 plans: 7 shipped (archived), 0 in-progress, 4 queued, 1 | [2026-07-03-incremental-negentropy-storage.md](2026-07-03-incremental-negentropy-storage.md) | Always-current (created_at, id) index so cold NEG-OPENs stop paying a full scan + seal (~340 ms at 50k vs strfry's ~21 ms). | | [2026-07-04-small-req-floor.md](2026-07-04-small-req-floor.md) | Small-REQ dispatch floor: decomposed, inline fast path tried and reverted (no wire-level win); floor is transport-side. | | [2026-08-13-gpu-pow-mining.md](2026-08-13-gpu-pow-mining.md) | GPU NIP-13 mining declined (ARMv8 has SHA-256 in silicon, mobile GPUs do not). Midstate is ~3x on JVM targets; Android hinges on Conscrypt per-digest JNI cost, still unmeasured. created_at refresh while mining shipped. | -| [2026-09-08-marmot-spec-resync.md](2026-09-08-marmot-spec-resync.md) | Marmot moved off the MIP-era spec (2026-07-02): group state split into `app_data_dictionary` components, account identity proof v2, and a convergence engine. Current MDK rejects our groups outright. Gap analysis + 8-stage plan; Stages 0 (interop reference repointed at mdk, current-profile vector generator) and 2 (account-identity-proof v2) done. | +| [2026-09-08-marmot-spec-resync.md](2026-09-08-marmot-spec-resync.md) | Marmot moved off the MIP-era spec (2026-07-02): group state split into `app_data_dictionary` components, account identity proof v2, and a convergence engine. Current MDK rejects our groups outright. Gap analysis + 8-stage plan; Stages 0 (interop reference repointed at mdk, current-profile vector generator), 1 (app_data_dictionary + AppDataUpdate) and 2 (account-identity-proof v2) done. | ## Archived (shipped) | Plan | Summary | diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataDictionary.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataDictionary.kt new file mode 100644 index 0000000000..6faf55d423 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataDictionary.kt @@ -0,0 +1,182 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mls.components + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsSerializable +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter +import com.vitorpamplona.quartz.marmot.mls.tree.Extension + +/** + * The `app_data_dictionary` MLS extension (draft-ietf-mls-extensions-10 §4.6), + * extension type `0x0006`. + * + * ```text + * struct { + * ComponentData component_data; + * } AppDataDictionary; + * ``` + * + * This is the current Marmot profile's carrier for every piece of + * application-owned MLS state. It can hang off four different objects, and the + * container decides the scope: + * + * - **GroupContext** — authenticated group state agreed for an epoch. Changes + * only through an `AppDataUpdate` proposal. + * - **LeafNode** — data about one member leaf. Changes only by replacing the + * leaf, which is why the account identity proof lives here and is immune to + * `AppDataUpdate`. + * - **KeyPackage** — data about one KeyPackage, separate from the dictionary in + * its embedded LeafNode. This is where the empty-data + * `last_resort_key_package` component sits. + * - **GroupInfo** — data for one GroupInfo object. + * + * It replaced MIP-01's single `marmot_group_data` extension (`0xF2EE`), which + * packed every field into one blob that only a whole-extension rewrite could + * change. + * + * ## Ordering is normative + * + * Entries are sorted by component id with at most one entry per id, and the + * draft requires that to be checked on deserialization as well as on + * construction. This class does both, but differently on purpose: building one + * from a collection sorts for you, while [decodeTls] rejects bytes that arrive + * out of order or with a duplicate rather than quietly normalizing them. A + * receiver that silently sorted would accept two distinct encodings of the same + * dictionary, and anything hashing or comparing the encoded bytes — a + * GroupContext, a signature, a conformance snapshot — would then disagree with + * a peer that rejected one of them. + */ +class AppDataDictionary( + entries: Collection, +) : TlsSerializable { + /** Entries in ascending component-id order, at most one per id. */ + val entries: List = entries.sortedBy { it.componentId } + + init { + for (i in 1 until this.entries.size) { + require(this.entries[i - 1].componentId != this.entries[i].componentId) { + "AppDataDictionary has a duplicate entry for component " + + "0x${this.entries[i].componentId.toString(16).padStart(4, '0')}" + } + } + } + + val isEmpty: Boolean get() = entries.isEmpty() + + val componentIds: List get() = entries.map { it.componentId } + + operator fun get(componentId: Int): ByteArray? = entries.firstOrNull { it.componentId == componentId }?.data + + fun contains(componentId: Int): Boolean = entries.any { it.componentId == componentId } + + /** A copy with [componentId] set to [data], replacing any existing entry. */ + fun with( + componentId: Int, + data: ByteArray, + ): AppDataDictionary = + AppDataDictionary( + entries.filterNot { it.componentId == componentId } + ComponentData(componentId, data), + ) + + /** A copy without [componentId]. Removing an absent id is a no-op. */ + fun without(componentId: Int): AppDataDictionary = AppDataDictionary(entries.filterNot { it.componentId == componentId }) + + override fun encodeTls(writer: TlsWriter) { + writer.putVectorVarInt(entries) + } + + fun toBytes(): ByteArray { + val writer = TlsWriter() + encodeTls(writer) + return writer.toByteArray() + } + + /** Wrap as the `0x0006` MLS extension, ready for a LeafNode/GroupContext/KeyPackage list. */ + fun toExtension(): Extension = Extension(EXTENSION_TYPE, toBytes()) + + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is AppDataDictionary) return false + return entries == other.entries + } + + override fun hashCode(): Int = entries.hashCode() + + override fun toString(): String = + entries.joinToString(prefix = "AppDataDictionary[", postfix = "]") { + "0x${it.componentId.toString(16).padStart(4, '0')}(${it.data.size}B)" + } + + companion object { + /** MLS extension type, pinned by `foundation/registries.md`. */ + const val EXTENSION_TYPE = 0x0006 + + val EMPTY = AppDataDictionary(emptyList()) + + /** + * Decode the extension body, enforcing the draft's ordering and + * uniqueness rules on the wire bytes rather than normalizing them. + */ + fun decodeTls(reader: TlsReader): AppDataDictionary { + val decoded = reader.readVectorVarInt { ComponentData.decodeTls(it) } + for (i in 1 until decoded.size) { + val previous = decoded[i - 1].componentId + val current = decoded[i].componentId + require(previous != current) { + "AppDataDictionary contains a duplicate entry for component " + + "0x${current.toString(16).padStart(4, '0')}" + } + require(previous < current) { + "AppDataDictionary entries must be sorted by component id; " + + "0x${current.toString(16).padStart(4, '0')} follows " + + "0x${previous.toString(16).padStart(4, '0')}" + } + } + return AppDataDictionary(decoded) + } + + fun decode(bytes: ByteArray): AppDataDictionary { + val reader = TlsReader(bytes) + val dictionary = decodeTls(reader) + require(!reader.hasRemaining) { "AppDataDictionary has trailing bytes" } + return dictionary + } + + /** + * The `0x0006` dictionary in an extension list, or null when the object + * carries none. An object with more than one is malformed — RFC 9420 + * forbids repeating an extension type — so this throws rather than + * picking one. + */ + fun fromExtensions(extensions: List): AppDataDictionary? { + val matches = extensions.filter { it.extensionType == EXTENSION_TYPE } + if (matches.isEmpty()) return null + require(matches.size == 1) { + "an MLS object carries ${matches.size} app_data_dictionary extensions; at most one is valid" + } + return decode(matches[0].extensionData) + } + + /** [fromExtensions], treating an absent dictionary as an empty one. */ + fun fromExtensionsOrEmpty(extensions: List): AppDataDictionary = fromExtensions(extensions) ?: EMPTY + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/components/ComponentData.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/components/ComponentData.kt new file mode 100644 index 0000000000..585adb9a8e --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/components/ComponentData.kt @@ -0,0 +1,74 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mls.components + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsSerializable +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter + +/** + * One entry in an [AppDataDictionary] (draft-ietf-mls-extensions-10 §4.6). + * + * ```text + * uint16 ComponentID; + * + * struct { + * ComponentID component_id; + * opaque data; + * } ComponentData; + * ``` + * + * MLS owns this framing; the application owns whatever is inside [data]. For + * Marmot's own ids the payload uses the Marmot binary profile — the same QUIC + * variable-length prefixes MLS uses — but that is a coincidence of taste, not a + * rule this struct enforces. Nothing here interprets [data]. + */ +data class ComponentData( + val componentId: Int, + val data: ByteArray, +) : TlsSerializable { + init { + require(componentId in 0..0xFFFF) { + "ComponentID must fit in a uint16, was $componentId" + } + } + + override fun encodeTls(writer: TlsWriter) { + writer.putUint16(componentId) + writer.putOpaqueVarInt(data) + } + + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is ComponentData) return false + return componentId == other.componentId && data.contentEquals(other.data) + } + + override fun hashCode(): Int = 31 * componentId + data.contentHashCode() + + companion object { + fun decodeTls(reader: TlsReader): ComponentData = + ComponentData( + componentId = reader.readUint16(), + data = reader.readOpaqueVarInt(), + ) + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/components/ComponentsList.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/components/ComponentsList.kt new file mode 100644 index 0000000000..e3d58942e1 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/components/ComponentsList.kt @@ -0,0 +1,118 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mls.components + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter + +/** + * The `ComponentsList` payload shared by the upstream `app_components` + * (`0x0001`) and `safe_aad` (`0x0002`) components + * (draft-ietf-mls-extensions-10). + * + * ```text + * struct { + * ComponentID component_ids; + * } ComponentsList; + * ``` + * + * On the wire that is a QUIC varint giving the payload's BYTE length — + * `2 * id count`, not the count — followed by big-endian `uint16` ids. + * + * The same shape means two different things depending on where it sits: + * + * - in a **LeafNode** dictionary it is the component ids that member supports; + * - in a **GroupContext** dictionary it is the ids the group requires. + * + * A member that does not support every required id cannot join. Note the + * asymmetry Marmot relies on: a GroupContext may require a component whose data + * is leaf-only (`0x8009`, the account identity proof), so "required" does not + * imply "present in the GroupContext dictionary". + * + * Anyone advertising `app_data_dictionary` support must also understand + * `app_components` and `safe_aad`, which is why a client with nothing to + * contribute to SafeAAD still carries an explicit empty list rather than + * omitting the component. + */ +object ComponentsList { + /** + * Encode [ids] as a component payload. Sorted and de-duplicated on the way + * out, because ordering is part of the value: two encodings of the same set + * would otherwise hash differently inside a signed GroupContext. + */ + fun encode(ids: Collection): ByteArray { + val sorted = ids.distinct().sorted() + for (id in sorted) { + require(id in 0..0xFFFF) { "ComponentID must fit in a uint16, was $id" } + } + val inner = TlsWriter() + for (id in sorted) inner.putUint16(id) + + val writer = TlsWriter() + writer.putOpaqueVarInt(inner.toByteArray()) + return writer.toByteArray() + } + + /** + * Decode a component payload, rejecting an odd byte length, duplicates, + * out-of-order ids, and trailing bytes. + * + * Strict for the same reason [AppDataDictionary.decodeTls] is: this list + * lives inside signed group state, so accepting a second spelling of the + * same list would let two peers hold bytes they each consider valid and + * disagree about. + */ + fun decode(bytes: ByteArray): List { + val reader = TlsReader(bytes) + val payload = reader.readOpaqueVarInt() + require(!reader.hasRemaining) { "ComponentsList has trailing bytes" } + require(payload.size % 2 == 0) { + "ComponentsList payload must be a whole number of uint16 ids, was ${payload.size} bytes" + } + + val payloadReader = TlsReader(payload) + val ids = mutableListOf() + while (payloadReader.hasRemaining) { + val id = payloadReader.readUint16() + val previous = ids.lastOrNull() + if (previous != null) { + require(previous != id) { + "ComponentsList contains a duplicate id 0x${id.toString(16).padStart(4, '0')}" + } + require(previous < id) { + "ComponentsList must be sorted; 0x${id.toString(16).padStart(4, '0')} follows " + + "0x${previous.toString(16).padStart(4, '0')}" + } + } + ids.add(id) + } + return ids + } + + /** Component id of the upstream `app_components` list. */ + const val APP_COMPONENTS_ID = 0x0001 + + /** Component id of the upstream `safe_aad` list. */ + const val SAFE_AAD_ID = 0x0002 + + /** The supported/required id list carried by [dictionary], or empty when absent. */ + fun supportedOrRequired(dictionary: AppDataDictionary): List = dictionary[APP_COMPONENTS_ID]?.let { decode(it) } ?: emptyList() +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index f30c7cc357..ae50fd036e 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -23,6 +23,7 @@ package com.vitorpamplona.quartz.marmot.mls.group import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter +import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary import com.vitorpamplona.quartz.marmot.mls.crypto.Ed25519 import com.vitorpamplona.quartz.marmot.mls.crypto.Ed25519KeyPair import com.vitorpamplona.quartz.marmot.mls.crypto.Hpke @@ -153,6 +154,14 @@ class MlsGroup private constructor( */ internal fun pendingProposalsSnapshot(): List = pendingProposals.toList() + /** + * The GroupContext extension list as it stands. Test-only: callers + * that want the dictionary should use [appDataDictionary], which + * cannot distinguish an absent extension from an empty one — a + * distinction the wire format does make. + */ + internal fun groupContextExtensionsSnapshot(): List = groupContext.extensions.toList() + /** * Encode the current ratchet tree the same way it's serialized into * the GroupInfo's `ratchet_tree` extension on a Welcome — a freshly- @@ -403,6 +412,36 @@ class MlsGroup private constructor( return proposal } + /** The GroupContext `app_data_dictionary`, empty when the group carries none. */ + fun appDataDictionary(): AppDataDictionary = AppDataDictionary.fromExtensionsOrEmpty(groupContext.extensions) + + /** + * Propose setting one GroupContext app component to [data]. + * + * Marmot components define their update payload as a full replacement + * state, so [data] is the component's new value, not a diff. + * + * This is the MLS mechanism only. Marmot's own authorization — most + * component changes are admin-gated, and the resulting state still has to + * satisfy every component's validation rules — is layered on top and is + * not enforced here. + */ + fun proposeAppDataUpdate( + componentId: Int, + data: ByteArray, + ): Proposal.AppDataUpdate { + val proposal = Proposal.AppDataUpdate.update(componentId, data) + pendingProposals.add(PendingProposal(proposal, myLeafIndex)) + return proposal + } + + /** Propose dropping one GroupContext app component entirely. */ + fun proposeAppDataRemoval(componentId: Int): Proposal.AppDataUpdate { + val proposal = Proposal.AppDataUpdate.remove(componentId) + pendingProposals.add(PendingProposal(proposal, myLeafIndex)) + return proposal + } + /** * Create a PSK proposal to include a pre-shared key in the next epoch. * The PSK must be registered via registerPsk() before committing. @@ -486,13 +525,15 @@ class MlsGroup private constructor( // Order: Updates/Removes first, then Adds (so blank slots are freed before reuse) val addedMembers = mutableListOf>() val addProposals = mutableListOf() + val appDataUpdates = mutableListOf() for (pending in proposals) { - if (pending.proposal is Proposal.Add) { - addProposals.add(pending) - } else { - applyProposal(pending.proposal, pending.senderLeafIndex) + when (val p = pending.proposal) { + is Proposal.Add -> addProposals.add(pending) + is Proposal.AppDataUpdate -> appDataUpdates.add(p) + else -> applyProposal(p, pending.senderLeafIndex) } } + applyAppDataUpdateProposals(appDataUpdates) // Apply Adds after Removes/Updates for (pending in addProposals) { val p = pending.proposal as Proposal.Add @@ -1502,19 +1543,25 @@ class MlsGroup private constructor( val resolvedProposals = mutableListOf() val inlineAdds = mutableListOf() val referenceAddSenders = mutableListOf>() + val inboundAppDataUpdates = mutableListOf() for ((idx, pending) in resolvedPending.withIndex()) { val isInline = commit.proposals[idx] is ProposalOrRef.Inline - if (pending.proposal is Proposal.Add) { - if (isInline) { - inlineAdds.add(pending.proposal) - } else { - referenceAddSenders.add(pending.proposal to pending.senderLeafIndex) + when (val p = pending.proposal) { + is Proposal.Add -> { + if (isInline) { + inlineAdds.add(p) + } else { + referenceAddSenders.add(p to pending.senderLeafIndex) + } } - } else { - applyProposal(pending.proposal, pending.senderLeafIndex) + + is Proposal.AppDataUpdate -> inboundAppDataUpdates.add(p) + + else -> applyProposal(p, pending.senderLeafIndex) } resolvedProposals.add(pending.proposal) } + applyAppDataUpdateProposals(inboundAppDataUpdates) val newLeavesInCommit = mutableSetOf() for (add in inlineAdds) { newLeavesInCommit.add(applyProposalAdd(add)) @@ -2293,6 +2340,13 @@ class MlsGroup private constructor( committerLeafIndex: Int = myLeafIndex, ) { if (proposals.isEmpty()) return + // NOTE: this gate reads MIP-01's `marmot_group_data` (0xF2EE). A + // current-profile group keeps its admin list in the + // `marmot.group.admin-policy.v1` component (0x8003) instead, so + // `currentMarmotData()` is null there and this returns without + // enforcing anything. That is a real gap, not a deliberate exemption: + // current-profile authorization arrives with the admin-policy component + // (see quartz/plans/2026-09-08-marmot-spec-resync.md, Stage 3). val marmot = currentMarmotData() val adminsConfigured = marmot != null && marmot.adminPubkeys.isNotEmpty() if (!adminsConfigured || isLeafAdmin(committerLeafIndex)) return @@ -2427,9 +2481,65 @@ class MlsGroup private constructor( } is Proposal.ExternalInit -> {} // Handled in external commit flow + + is Proposal.AppDataUpdate -> { + // Applied by [applyAppDataUpdateProposals] after the rest of + // the proposal list, so a GroupContextExtensions proposal in + // the same commit is already reflected. Reaching it here would + // mean a caller bypassed that ordering. + error("AppDataUpdate must be applied through applyAppDataUpdateProposals") + } } } + /** + * Fold every `AppDataUpdate` proposal in a commit into the GroupContext + * `app_data_dictionary`. + * + * Two ordering rules matter, and both change the resulting GroupContext + * bytes — and therefore the epoch's key schedule — if we get them wrong: + * + * 1. These run AFTER the rest of the proposal list, so a + * `GroupContextExtensions` proposal in the same commit is already + * applied and we update the dictionary it produced. + * 2. The dictionary extension is added-or-replaced in place and is never + * dropped, even when the last component is removed and the dictionary + * ends up empty. An absent extension and an empty one are different + * GroupContexts. + * + * MLS deliberately leaves the meaning of an update payload to the + * application — openmls hands the proposals back for the app to resolve — + * because a component's payload can be an arbitrary diff. Every Marmot + * component document defines its update as a full replacement state, so + * here resolution is the identity function. A future component that wanted + * true diff semantics would have to resolve them before this point. + */ + private fun applyAppDataUpdateProposals(updates: List) { + if (updates.isEmpty()) return + + var dictionary = AppDataDictionary.fromExtensionsOrEmpty(groupContext.extensions) + for (update in updates) { + dictionary = + when (val operation = update.operation) { + is Proposal.AppDataUpdate.Operation.Update -> + dictionary.with(update.componentId, operation.data) + + Proposal.AppDataUpdate.Operation.Remove -> + dictionary.without(update.componentId) + } + } + + val extension = dictionary.toExtension() + val existing = groupContext.extensions.indexOfFirst { it.extensionType == AppDataDictionary.EXTENSION_TYPE } + val newExtensions = + if (existing >= 0) { + groupContext.extensions.toMutableList().also { it[existing] = extension } + } else { + groupContext.extensions + extension + } + groupContext = groupContext.copy(extensions = newExtensions) + } + private fun buildWelcome(addedMembers: List>): ByteArray { // Add ratchet tree as GroupInfo extension (RFC 9420 Section 12.4.3.3) val treeWriter = TlsWriter() @@ -2729,6 +2839,10 @@ class MlsGroup private constructor( EXTERNAL_PUB_EXTENSION_TYPE, EXTERNAL_SENDERS_EXTENSION_TYPE, MARMOT_GROUP_DATA_EXTENSION_TYPE, + // The current profile's carrier for all app-owned group state. + // A group can arrive at one either by being created with it or + // by a GroupContextExtensions proposal that installs it. + AppDataDictionary.EXTENSION_TYPE, ) /** diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/messages/Proposal.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/messages/Proposal.kt index 67ab80be98..afd21f4161 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/messages/Proposal.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/messages/Proposal.kt @@ -45,6 +45,12 @@ enum class ProposalType( EXTERNAL_INIT(6), GROUP_CONTEXT_EXTENSIONS(7), + // AppDataUpdate is the MLS Extensions draft's proposal for mutating + // GroupContext app components. Every current-profile Marmot group requires + // it, because that profile keeps all its mutable group state in the + // `app_data_dictionary` rather than in a bespoke extension. + APP_DATA_UPDATE(0x0008), + // SelfRemove is standardized in MLS Extensions draft-ietf-mls-extensions // as IANA proposal type 0x000A, NOT a Marmot private-use value. // openmls / mdk encode it as 0x000A on the wire; quartz was writing @@ -134,6 +140,91 @@ sealed class Proposal : TlsSerializable { } } + /** + * AppDataUpdate proposal (MLS Extensions draft): set or remove ONE + * component in the GroupContext `app_data_dictionary`. + * + * ```text + * struct { + * ComponentID component_id; + * AppDataUpdateOperation op; // uint8: 1 = update, 2 = remove + * select (op) { + * case update: opaque update; + * case remove: struct{}; + * }; + * } AppDataUpdate; + * ``` + * + * This targets the GroupContext dictionary ONLY. It is not an update + * mechanism for a LeafNode, KeyPackage, or GroupInfo dictionary — leaf + * state changes by replacing the leaf, which is what keeps a member's + * account identity proof out of reach of anyone else's proposal. + * + * Marmot layers its own authorization on top: most component changes are + * admin-gated, and a Commit's resulting state still has to satisfy every + * component's own validation rules. None of that is expressed here — this + * type is the wire format, not the policy. + */ + data class AppDataUpdate( + val componentId: Int, + val operation: Operation, + ) : Proposal() { + override val proposalType = ProposalType.APP_DATA_UPDATE + + init { + require(componentId in 0..0xFFFF) { + "ComponentID must fit in a uint16, was $componentId" + } + } + + sealed class Operation { + /** Set the component's data, creating the entry if absent. */ + data class Update( + val data: ByteArray, + ) : Operation() { + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is Update) return false + return data.contentEquals(other.data) + } + + override fun hashCode(): Int = data.contentHashCode() + } + + /** Drop the component's entry entirely. */ + object Remove : Operation() + + companion object { + const val TYPE_UPDATE = 1 + const val TYPE_REMOVE = 2 + } + } + + override fun encodeTls(writer: TlsWriter) { + writer.putUint16(proposalType.value) + writer.putUint16(componentId) + when (operation) { + is Operation.Update -> { + writer.putUint8(Operation.TYPE_UPDATE) + writer.putOpaqueVarInt(operation.data) + } + + Operation.Remove -> { + writer.putUint8(Operation.TYPE_REMOVE) + } + } + } + + companion object { + fun update( + componentId: Int, + data: ByteArray, + ) = AppDataUpdate(componentId, Operation.Update(data)) + + fun remove(componentId: Int) = AppDataUpdate(componentId, Operation.Remove) + } + } + /** * PSK proposal: include a pre-shared key in the epoch. */ @@ -230,6 +321,20 @@ sealed class Proposal : TlsSerializable { SelfRemove() } + ProposalType.APP_DATA_UPDATE -> { + val componentId = reader.readUint16() + when (val op = reader.readUint8()) { + AppDataUpdate.Operation.TYPE_UPDATE -> + AppDataUpdate.update(componentId, reader.readOpaqueVarInt()) + + AppDataUpdate.Operation.TYPE_REMOVE -> + AppDataUpdate.remove(componentId) + + else -> + throw IllegalArgumentException("Unknown AppDataUpdateOperation: $op") + } + } + ProposalType.GROUP_CONTEXT_EXTENSIONS -> { GroupContextExtensions(reader.readVectorVarInt { Extension.decodeTls(it) }) } diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataDictionaryInteropTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataDictionaryInteropTest.kt new file mode 100644 index 0000000000..6362457ad0 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataDictionaryInteropTest.kt @@ -0,0 +1,295 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mls.components + +import com.vitorpamplona.quartz.TestResourceLoader +import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds +import com.vitorpamplona.quartz.marmot.appComponents.accountIdentityProof.AccountIdentityProofV2 +import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter +import com.vitorpamplona.quartz.marmot.mls.framing.MlsMessage +import com.vitorpamplona.quartz.marmot.mls.framing.WireFormat +import com.vitorpamplona.quartz.marmot.mls.messages.MlsKeyPackage +import com.vitorpamplona.quartz.marmot.mls.tree.Credential +import com.vitorpamplona.quartz.nip01Core.core.JsonMapper +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlinx.serialization.SerialName +import kotlinx.serialization.Serializable +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertNotNull +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * Parses the current-profile KeyPackage in `marmot-current-profile.json` all the + * way down: MLSMessage -> KeyPackage -> LeafNode -> `app_data_dictionary` -> + * individual components. + * + * These bytes were produced by the OpenMLS fork MDK builds on, so this is the + * test that says our draft-extensions codecs agree with the reference on real + * traffic rather than on our own reading of the spec. A JSON echo of the + * component map could not: the generator would just be handing us back what we + * told it to write. + */ +class AppDataDictionaryInteropTest { + @Serializable + private data class Joiner( + @SerialName("account_pubkey") val accountPubKey: String, + @SerialName("signature_pub") val signaturePub: String, + @SerialName("key_package") val keyPackage: String, + @SerialName("key_package_dictionary") val keyPackageDictionary: Map, + @SerialName("leaf_dictionary") val leafDictionary: Map, + ) + + @Serializable + private data class Vector( + val joiner: Joiner, + @SerialName("required_capabilities") val requiredCapabilities: RequiredCapabilities, + ) + + @Serializable + private data class RequiredCapabilities( + val extensions: List, + val proposals: List, + ) + + private val vector: Vector = + JsonMapper.jsonInstance.decodeFromString( + TestResourceLoader().loadString("mls/marmot-current-profile.json"), + ) + + private val keyPackage: MlsKeyPackage by lazy { + val message = MlsMessage.decodeTls(TlsReader(vector.joiner.keyPackage.hexToByteArray())) + assertEquals(WireFormat.KEY_PACKAGE, message.wireFormat) + MlsKeyPackage.decodeTls(TlsReader(message.payload)) + } + + private fun hexId(id: Int) = AppComponentIds.toHex(id) + + @Test + fun theReferenceKeyPackageStillParsesAndVerifies() { + // Guard the layers underneath: if the KeyPackage itself stopped + // parsing, every dictionary assertion below would be vacuous. + assertTrue(keyPackage.verifySignature(), "MDK-shaped current-profile KeyPackage must verify") + assertEquals(1, keyPackage.cipherSuite) + } + + @Test + fun theLeafAdvertisesTheDraftExtensionAndProposal() { + val capabilities = keyPackage.leafNode.capabilities + assertTrue( + capabilities.extensions.contains(AppDataDictionary.EXTENSION_TYPE), + "a current-profile leaf advertises app_data_dictionary (0x0006)", + ) + assertTrue( + capabilities.proposals.contains(0x0008), + "a current-profile leaf advertises app_data_update (0x0008)", + ) + assertEquals(listOf("0x0006"), vector.requiredCapabilities.extensions) + assertEquals(listOf("0x0008"), vector.requiredCapabilities.proposals) + } + + @Test + fun theLeafDictionaryDecodesToTheGeneratorsComponents() { + val dictionary = AppDataDictionary.fromExtensions(keyPackage.leafNode.extensions) + assertNotNull(dictionary, "the member leaf must carry a 0x0006 extension") + + assertEquals( + vector.joiner.leafDictionary.keys + .sorted(), + dictionary.componentIds.map { hexId(it) }, + "decoded component ids must match the generator's, in ascending order", + ) + for ((idHex, dataHex) in vector.joiner.leafDictionary) { + val id = idHex.removePrefix("0x").toInt(16) + assertEquals(dataHex, dictionary[id]?.toHexKey(), "component $idHex data") + } + } + + @Test + fun theLeafDictionaryReEncodesByteIdentically() { + // The dictionary lives inside the signed LeafNode, so a re-encoding + // that differs by even one byte would invalidate the signature. This is + // the assertion that makes the codec safe to write with, not just read. + val raw = keyPackage.leafNode.extensions.single { it.extensionType == AppDataDictionary.EXTENSION_TYPE } + val dictionary = AppDataDictionary.decode(raw.extensionData) + assertContentEquals(raw.extensionData, dictionary.toBytes()) + assertEquals(raw, dictionary.toExtension()) + } + + @Test + fun theKeyPackageDictionaryCarriesLastResortAsAnEmptyComponent() { + // Last resort is a KeyPackage-level COMPONENT with empty data, not an + // MLS extension type — the MIP-era profile used extension 0x000a for + // this, which is now the self_remove proposal type. + val dictionary = AppDataDictionary.fromExtensions(keyPackage.extensions) + assertNotNull(dictionary, "a last-resort KeyPackage carries its own 0x0006 extension") + assertEquals(listOf(AppComponentIds.LAST_RESORT_KEY_PACKAGE), dictionary.componentIds) + assertContentEquals(ByteArray(0), dictionary[AppComponentIds.LAST_RESORT_KEY_PACKAGE]) + assertEquals( + vector.joiner.keyPackageDictionary.keys, + dictionary.componentIds.map { hexId(it) }.toSet(), + ) + + // It is a separate dictionary from the embedded LeafNode's. + val leafDictionary = AppDataDictionary.fromExtensions(keyPackage.leafNode.extensions) + assertNotNull(leafDictionary) + assertNull( + leafDictionary[AppComponentIds.LAST_RESORT_KEY_PACKAGE], + "last resort belongs to the KeyPackage, not to its leaf", + ) + } + + @Test + fun theSupportedComponentsListDecodes() { + val dictionary = AppDataDictionary.fromExtensions(keyPackage.leafNode.extensions)!! + val supported = ComponentsList.decode(dictionary[ComponentsList.APP_COMPONENTS_ID]!!) + + assertTrue( + supported.contains(AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2), + "the leaf must advertise support for 0x8009 alongside carrying its data", + ) + assertTrue(supported.contains(ComponentsList.APP_COMPONENTS_ID)) + assertEquals(supported.sorted(), supported, "ids arrive sorted") + assertContentEquals( + dictionary[ComponentsList.APP_COMPONENTS_ID], + ComponentsList.encode(supported), + "re-encoding the supported list must reproduce the signed bytes", + ) + } + + @Test + fun safeAadIsAnExplicitEmptyList() { + val dictionary = AppDataDictionary.fromExtensions(keyPackage.leafNode.extensions)!! + val safeAad = dictionary[ComponentsList.SAFE_AAD_ID] + assertNotNull(safeAad, "advertising app_data_dictionary requires understanding safe_aad") + assertEquals(emptyList(), ComponentsList.decode(safeAad)) + assertContentEquals(safeAad, ComponentsList.encode(emptyList())) + } + + @Test + fun theProofComponentPulledFromTheParsedLeafValidates() { + // Ties Stage 2 to Stage 1: the proof is read out of a real parsed + // LeafNode rather than out of a JSON convenience field, and checked + // against that same leaf's credential and signature key. + val dictionary = AppDataDictionary.fromExtensions(keyPackage.leafNode.extensions)!! + val leaf = keyPackage.leafNode + + val identity = (leaf.credential as Credential.Basic).identity + assertEquals( + vector.joiner.accountPubKey, + identity.toHexKey(), + "the BasicCredential identity is the raw 32-byte account key", + ) + assertEquals(vector.joiner.signaturePub, leaf.signatureKey.toHexKey()) + + assertEquals( + AccountIdentityProofV2.Result.VALID, + AccountIdentityProofV2.validate( + componentData = dictionary[AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2], + credentialIdentity = identity, + mlsSignatureKey = leaf.signatureKey, + ciphersuite = MlsCiphersuite.DEFAULT, + ), + ) + } + + // --- strictness ----------------------------------------------------------- + + @Test + fun outOfOrderAndDuplicateEntriesAreRejectedOnDecode() { + val ordered = + AppDataDictionary( + listOf( + ComponentData(0x0001, byteArrayOf(1)), + ComponentData(0x8003, byteArrayOf(2)), + ), + ) + assertEquals(listOf(0x0001, 0x8003), ordered.componentIds) + + // Hand-build the same two entries in the wrong order, and then twice + // over. A decoder that normalized instead of rejecting would accept two + // encodings of one dictionary, and peers hashing the signed bytes would + // then disagree about which is canonical. + fun rawDictionary(vararg entries: ComponentData): ByteArray { + val inner = TlsWriter() + entries.forEach { it.encodeTls(inner) } + val outer = TlsWriter() + outer.putOpaqueVarInt(inner.toByteArray()) + return outer.toByteArray() + } + + val a = ComponentData(0x0001, byteArrayOf(1)) + val b = ComponentData(0x8003, byteArrayOf(2)) + assertContentEquals(rawDictionary(a, b), ordered.toBytes(), "sanity: the helper builds the same bytes") + + assertFailsWith { AppDataDictionary.decode(rawDictionary(b, a)) } + assertFailsWith { AppDataDictionary.decode(rawDictionary(a, a)) } + } + + @Test + fun trailingBytesAreRejected() { + val dictionary = AppDataDictionary(listOf(ComponentData(0x8001, byteArrayOf(7)))) + assertFailsWith { AppDataDictionary.decode(dictionary.toBytes() + 0x00) } + assertFailsWith { + ComponentsList.decode(ComponentsList.encode(listOf(0x8001)) + 0x00) + } + } + + @Test + fun mutatorsKeepTheDictionarySortedAndUnique() { + val dictionary = + AppDataDictionary.EMPTY + .with(AppComponentIds.GROUP_LIFECYCLE_V1, byteArrayOf(0)) + .with(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(1)) + .with(ComponentsList.APP_COMPONENTS_ID, ComponentsList.encode(listOf(0x8001))) + + assertEquals( + listOf(ComponentsList.APP_COMPONENTS_ID, AppComponentIds.GROUP_PROFILE_V1, AppComponentIds.GROUP_LIFECYCLE_V1), + dictionary.componentIds, + ) + + val replaced = dictionary.with(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(9)) + assertEquals(dictionary.componentIds, replaced.componentIds, "replacing does not add a second entry") + assertContentEquals(byteArrayOf(9), replaced[AppComponentIds.GROUP_PROFILE_V1]) + + val removed = replaced.without(AppComponentIds.GROUP_PROFILE_V1) + assertNull(removed[AppComponentIds.GROUP_PROFILE_V1]) + assertEquals(removed.componentIds, removed.without(0x9999).componentIds, "removing an absent id is a no-op") + + // Round-trip whatever we built, so the mutators cannot drift from the codec. + assertEquals(removed, AppDataDictionary.decode(removed.toBytes())) + } + + @Test + fun moreThanOneDictionaryExtensionIsMalformed() { + val one = AppDataDictionary(listOf(ComponentData(0x8001, byteArrayOf(1)))).toExtension() + val two = AppDataDictionary(listOf(ComponentData(0x8002, byteArrayOf(2)))).toExtension() + assertFailsWith { AppDataDictionary.fromExtensions(listOf(one, two)) } + assertNull(AppDataDictionary.fromExtensions(emptyList())) + assertEquals(AppDataDictionary.EMPTY, AppDataDictionary.fromExtensionsOrEmpty(emptyList())) + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataUpdateProposalTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataUpdateProposalTest.kt new file mode 100644 index 0000000000..28642f9aec --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataUpdateProposalTest.kt @@ -0,0 +1,220 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mls.components + +import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroup +import com.vitorpamplona.quartz.marmot.mls.messages.Proposal +import com.vitorpamplona.quartz.marmot.mls.messages.ProposalType +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertNotNull +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * The `app_data_update` proposal (`0x0008`): wire format, and how a commit + * carrying one changes the GroupContext `app_data_dictionary`. + * + * The group-level assertions matter more than they look. The resulting + * GroupContext feeds the epoch key schedule, so any disagreement with the + * reference about *which bytes* result — extension position, whether an + * emptied dictionary keeps its extension, what happens when a commit carries + * both a GroupContextExtensions and an AppDataUpdate — desynchronizes the + * group rather than merely looking different. + */ +class AppDataUpdateProposalTest { + private val creator = "11".repeat(32).hexToByteArray() + + private fun encode(proposal: Proposal): ByteArray { + val writer = TlsWriter() + proposal.encodeTls(writer) + return writer.toByteArray() + } + + private fun roundTrip(proposal: Proposal): Proposal = Proposal.decodeTls(TlsReader(encode(proposal))) + + @Test + fun updateWireFormat() { + val proposal = Proposal.AppDataUpdate.update(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(0x0a, 0x0b)) + assertEquals(ProposalType.APP_DATA_UPDATE, proposal.proposalType) + + // 0008 proposal type + // 8001 component id + // 01 op = update + // 02 0a0b opaque update (QUIC varint length, then the data) + assertEquals("0008" + "8001" + "01" + "02" + "0a0b", encode(proposal).toHexKey()) + } + + @Test + fun removeWireFormat() { + val proposal = Proposal.AppDataUpdate.remove(AppComponentIds.GROUP_LIFECYCLE_V1) + // 0008 800c 02 — a remove carries no payload at all, not an empty one. + assertEquals("0008800c02", encode(proposal).toHexKey()) + } + + @Test + fun bothOperationsRoundTrip() { + val update = Proposal.AppDataUpdate.update(AppComponentIds.ADMIN_POLICY_V1, ByteArray(40) { it.toByte() }) + assertEquals(update, roundTrip(update)) + + val remove = Proposal.AppDataUpdate.remove(AppComponentIds.NOSTR_ROUTING_V1) + assertEquals(remove, roundTrip(remove)) + + val empty = Proposal.AppDataUpdate.update(AppComponentIds.GROUP_PROFILE_V1, ByteArray(0)) + assertEquals(empty, roundTrip(empty)) + assertTrue( + encode(empty).size < encode(remove).size + 2, + "an empty update is not the same encoding as a remove", + ) + assertTrue(!encode(empty).contentEquals(encode(remove))) + } + + @Test + fun anUnknownOperationIsRejected() { + val hostile = "0008800103".hexToByteArray() + assertFailsWith { Proposal.decodeTls(TlsReader(hostile)) } + } + + // --- group application ---------------------------------------------------- + + @Test + fun aCommitInstallsAndReplacesComponents() { + val group = MlsGroup.create(creator) + assertTrue(group.appDataDictionary().isEmpty) + + group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(1)) + group.proposeAppDataUpdate(AppComponentIds.GROUP_LIFECYCLE_V1, byteArrayOf(0)) + group.commit() + + val first = group.appDataDictionary() + assertEquals( + listOf(AppComponentIds.GROUP_PROFILE_V1, AppComponentIds.GROUP_LIFECYCLE_V1), + first.componentIds, + ) + assertContentEquals(byteArrayOf(1), first[AppComponentIds.GROUP_PROFILE_V1]) + + // A second update to the same id replaces rather than duplicates. + group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(2)) + group.commit() + + val second = group.appDataDictionary() + assertEquals(first.componentIds, second.componentIds) + assertContentEquals(byteArrayOf(2), second[AppComponentIds.GROUP_PROFILE_V1]) + } + + @Test + fun removingTheLastComponentKeepsAnEmptyDictionaryExtension() { + // Matching openmls: the dictionary extension is added-or-replaced and + // never dropped. An absent extension and an empty one are different + // GroupContexts, so dropping it here would fork us from the reference. + val group = MlsGroup.create(creator) + group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(1)) + group.commit() + assertTrue(group.appDataDictionary().contains(AppComponentIds.GROUP_PROFILE_V1)) + + group.proposeAppDataRemoval(AppComponentIds.GROUP_PROFILE_V1) + group.commit() + + val dictionary = group.appDataDictionary() + assertTrue(dictionary.isEmpty) + assertNotNull( + group.groupContextExtensionsSnapshot().firstOrNull { + it.extensionType == AppDataDictionary.EXTENSION_TYPE + }, + "an emptied dictionary keeps its extension", + ) + } + + @Test + fun removingAnAbsentComponentIsANoOp() { + val group = MlsGroup.create(creator) + group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(1)) + group.commit() + + group.proposeAppDataRemoval(AppComponentIds.NOSTR_ROUTING_V1) + group.commit() + + assertEquals(listOf(AppComponentIds.GROUP_PROFILE_V1), group.appDataDictionary().componentIds) + assertNull(group.appDataDictionary()[AppComponentIds.NOSTR_ROUTING_V1]) + } + + @Test + fun anAppDataUpdateAppliesOnTopOfAGroupContextExtensionsInTheSameCommit() { + // openmls applies AppDataUpdate to the extensions a + // GroupContextExtensions proposal already produced, regardless of the + // order the two appear in the proposal list. Propose them in the + // "wrong" order to prove we do not simply follow list order. + val group = MlsGroup.create(creator) + group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(0x42)) + group.proposeGroupContextExtensions( + listOf(AppDataDictionary(listOf(ComponentData(AppComponentIds.ADMIN_POLICY_V1, byteArrayOf(9)))).toExtension()), + ) + group.commit() + + val dictionary = group.appDataDictionary() + assertEquals( + listOf(AppComponentIds.GROUP_PROFILE_V1, AppComponentIds.ADMIN_POLICY_V1).sorted(), + dictionary.componentIds, + "the update lands on the dictionary the GCE installed, not on the pre-commit one", + ) + assertContentEquals(byteArrayOf(9), dictionary[AppComponentIds.ADMIN_POLICY_V1]) + assertContentEquals(byteArrayOf(0x42), dictionary[AppComponentIds.GROUP_PROFILE_V1]) + } + + @Test + fun aSecondMemberConvergesOnTheSameDictionary() { + // The receiving path is separate code from the committing path, and a + // divergence between them is a group split rather than a rendering bug. + val (alice, bob) = twoMemberGroup() + + alice.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(1, 2, 3)) + alice.proposeAppDataUpdate(AppComponentIds.GROUP_LIFECYCLE_V1, byteArrayOf(0)) + val commit = alice.commit() + bob.processFramedCommit(commit.framedCommitBytes) + + assertEquals(alice.epoch, bob.epoch) + assertEquals(alice.appDataDictionary(), bob.appDataDictionary()) + assertContentEquals(byteArrayOf(1, 2, 3), bob.appDataDictionary()[AppComponentIds.GROUP_PROFILE_V1]) + + alice.proposeAppDataRemoval(AppComponentIds.GROUP_PROFILE_V1) + val removal = alice.commit() + bob.processFramedCommit(removal.framedCommitBytes) + + assertEquals(alice.appDataDictionary(), bob.appDataDictionary()) + assertNull(bob.appDataDictionary()[AppComponentIds.GROUP_PROFILE_V1]) + assertTrue(bob.appDataDictionary().contains(AppComponentIds.GROUP_LIFECYCLE_V1)) + } + + private fun twoMemberGroup(): Pair { + val alice = MlsGroup.create(creator) + val bobBundle = alice.createKeyPackage("22".repeat(32).hexToByteArray(), ByteArray(0)) + val result = alice.addMember(bobBundle.keyPackage.toTlsBytes()) + val bob = MlsGroup.processWelcome(result.welcomeBytes!!, bobBundle) + return alice to bob + } +} From 1c4f7a1324f0933e87bdbac1fd19b242e285f13a Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 16:00:06 +0000 Subject: [PATCH 05/79] feat(marmot): split marmot_group_data into its six app components MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Stage 3 of the Marmot resync. MIP-01 packed name, description, admins, routing, image and retention into one 0xF2EE extension, so any change rewrote the whole blob. The adopted spec splits them into six independently versioned components in the GroupContext app_data_dictionary; this implements all six, plus MarmotGroupState as the read view that replaces MarmotGroupData. Several are not mechanical translations of the MIP-01 fields: - message-retention is a fixed uint64 with no length prefix, and 0 now means disabled where MIP-01 rejected it outright; - blossom-image gains media_type, and that type is bound into the AEAD's AAD; - profile equality is byte equality, so nothing may Unicode-normalize a group name before hashing, comparing or storing it; - admin keys sort by unsigned byte value, which matters because roughly half of all x-only keys start above 0x7f. Decoders reject unsorted, duplicate, ragged and trailing bytes rather than repairing them, for the same reason the dictionary codec does: these bytes sit in the signed GroupContext, and normalizing on the way in would leave two peers each holding bytes they consider valid and disagreeing about which is canonical. This also closes the authorization gap Stage 1 left open and flagged. A current-profile group keeps its admin list in marmot.group.admin-policy.v1 (0x8003), not in marmot_group_data, so both gates had nothing to read and let everything through. They now resolve admins through currentAdminIdentities(), which prefers 0x8003 and falls back to 0xF2EE, and depletion resolves an admin-policy change carried by an AppDataUpdate rather than only by a GroupContextExtensions proposal. The admin lookup deliberately decodes only 0x8003 and not the whole component set. The first version went through MarmotGroupState, which made a malformed profile component freeze the group by taking the admin check down with it — its own tests caught that. Authorization must not depend on components it does not read. Thirty-five tests: the MDK-generated GroupContext dictionary decoded component by component and re-encoded byte-identically, per-component validation rules the happy-path fixture cannot reach, and authorization driven through real groups rather than by calling the gates directly. Two of those tests started as wrong premises of mine and became real coverage: naming an admin who holds no member leaf is rejected by the admin/leaf coupling rule, and removing the admin policy is rejected because it is the group's sole admin authority for its lifetime. Full quartz jvmTest: 4,542 tests, 0 failures. commons and cli still compile. The 0xF2EE decoder stays as the legacy read path. Left for a follow-up: the image ENCRYPTION still uses an empty AAD and treats image_key/image_upload_key as HKDF seeds rather than the keys themselves, which touches the Android and CLI image paths. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- quartz/plans/2026-09-08-marmot-spec-resync.md | 45 ++- quartz/plans/README.md | 2 +- .../marmot/appComponents/AdminPolicyV1.kt | 148 +++++++++ .../appComponents/GroupBlossomImageV1.kt | 168 ++++++++++ .../marmot/appComponents/GroupLifecycleV1.kt | 72 +++++ .../marmot/appComponents/GroupProfileV1.kt | 85 +++++ .../marmot/appComponents/MarmotGroupState.kt | 152 +++++++++ .../appComponents/MessageRetentionV1.kt | 94 ++++++ .../marmot/appComponents/NostrRoutingV1.kt | 156 ++++++++++ .../quartz/marmot/mls/group/MlsGroup.kt | 115 +++++-- .../appComponents/AppComponentCodecTest.kt | 290 ++++++++++++++++++ .../CurrentProfileAuthorizationTest.kt | 166 ++++++++++ .../MarmotGroupStateVectorTest.kt | 170 ++++++++++ .../components/AppDataUpdateProposalTest.kt | 40 ++- 14 files changed, 1656 insertions(+), 47 deletions(-) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AdminPolicyV1.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupBlossomImageV1.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupLifecycleV1.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupProfileV1.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MessageRetentionV1.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/NostrRoutingV1.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AppComponentCodecTest.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileAuthorizationTest.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupStateVectorTest.kt diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index 75545d8d91..8d6d149d78 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -1,6 +1,6 @@ # Marmot: resync against the adopted spec and current MDK -Status: Stages 0, 1 and 2 done. Stages 3-7 open. +Status: Stages 0-3 done. Stages 4-7 open. Sources checked on 2026-09-08: @@ -341,11 +341,44 @@ Not yet wired: nothing reads or writes these components on a real leaf. The carr `app_data_dictionary`, which is Stage 1. Until then this is a correct, tested primitive with no call sites — which is exactly what makes Stage 1 mechanical rather than exploratory. -**Stage 3 — split `MarmotGroupData` into components.** -`0x8001` profile, `0x8003` admin-policy, `0x8004` nostr-routing, `0x8002` blossom-image -(with the new key semantics + `media_type` + domain-separated AAD), `0x8005` -message-retention, `0x800c` lifecycle. Keep the `0xF2EE` decoder as a read-only legacy path -for groups already on disk. +**Stage 3 — split `MarmotGroupData` into components. DONE (codecs + authorization).** + +All six component codecs in `marmot/appComponents/`, plus `MarmotGroupState` — the read view +over a GroupContext dictionary that replaces `MarmotGroupData`: + +| Component | Notes | +| --- | --- | +| `0x8001` profile | byte equality, no Unicode normalization; limits are in bytes | +| `0x8003` admin-policy | sorted/unique/non-empty 32-byte account keys; unsigned byte order | +| `0x8004` nostr-routing | raw 32-byte id + sorted relay list; relay-URL profile checked, never rewritten | +| `0x8005` message-retention | fixed uint64, no length prefix; `0` = disabled (MIP-01 rejected `0`) | +| `0x800c` lifecycle | one byte | +| `0x8002` blossom-image | five var-byte fields incl. the new `media_type`, plus the domain-separated AAD | + +**The Stage 1 authorization gap is closed.** `enforceAuthorizedProposalSet` and +`enforceNoAdminDepletion` now resolve admins through `currentAdminIdentities()`, which reads +`0x8003` when present and falls back to `0xF2EE`. Depletion also resolves an admin-policy +change carried by an `AppDataUpdate`, not just by a `GroupContextExtensions` proposal. + +One design decision worth recording: the admin lookup decodes **only** `0x8003`, never the +whole component set. Authorization must not depend on components it does not read — an +initial version that went through `MarmotGroupState` made a malformed profile component +freeze the group, which its own tests caught. + +The `0xF2EE` decoder stays as the legacy read path; nothing that reads it was removed. + +Verified: 35 new tests — the MDK-generated GroupContext dictionary decoded component by +component and re-encoded byte-identically, per-component validation rules the happy-path +fixture cannot reach, and authorization driven through real groups (a non-admin cannot rewrite +group state; an admin can; adminship transfers; a phantom admin with no member leaf is +rejected; removing the admin policy is rejected). Full `:quartz:jvmTest`: 4,542 tests, 0 +failures. `:commons` and `:cli` still compile. + +**Still open in this stage** — the encryption side of `0x8002`. The component now carries +`media_type` and exposes the `"marmot-group-image-v1" || 0x00 || media_type` AAD, but +`MarmotGroupImageCipher` still encrypts with an empty AAD and treats `image_key` / +`image_upload_key` as HKDF seeds rather than the keys themselves. Changing that touches the +Android and CLI image paths, so it is its own change rather than a rider on the codecs. **Stage 4 — Nostr transport corrections.** Drop kind 10051 in favor of NIP-65 write relays; drop the `encoding` and `relays` tags from diff --git a/quartz/plans/README.md b/quartz/plans/README.md index c766c18e83..4626f6cbd2 100644 --- a/quartz/plans/README.md +++ b/quartz/plans/README.md @@ -10,7 +10,7 @@ _Audited 2026-09-08. 12 plans: 7 shipped (archived), 0 in-progress, 4 queued, 1 | [2026-07-03-incremental-negentropy-storage.md](2026-07-03-incremental-negentropy-storage.md) | Always-current (created_at, id) index so cold NEG-OPENs stop paying a full scan + seal (~340 ms at 50k vs strfry's ~21 ms). | | [2026-07-04-small-req-floor.md](2026-07-04-small-req-floor.md) | Small-REQ dispatch floor: decomposed, inline fast path tried and reverted (no wire-level win); floor is transport-side. | | [2026-08-13-gpu-pow-mining.md](2026-08-13-gpu-pow-mining.md) | GPU NIP-13 mining declined (ARMv8 has SHA-256 in silicon, mobile GPUs do not). Midstate is ~3x on JVM targets; Android hinges on Conscrypt per-digest JNI cost, still unmeasured. created_at refresh while mining shipped. | -| [2026-09-08-marmot-spec-resync.md](2026-09-08-marmot-spec-resync.md) | Marmot moved off the MIP-era spec (2026-07-02): group state split into `app_data_dictionary` components, account identity proof v2, and a convergence engine. Current MDK rejects our groups outright. Gap analysis + 8-stage plan; Stages 0 (interop reference repointed at mdk, current-profile vector generator), 1 (app_data_dictionary + AppDataUpdate) and 2 (account-identity-proof v2) done. | +| [2026-09-08-marmot-spec-resync.md](2026-09-08-marmot-spec-resync.md) | Marmot moved off the MIP-era spec (2026-07-02): group state split into `app_data_dictionary` components, account identity proof v2, and a convergence engine. Current MDK rejects our groups outright. Gap analysis + 8-stage plan; Stages 0-3 done (mdk interop reference, app_data_dictionary + AppDataUpdate, account-identity-proof v2, the six group components + current-profile authorization). | ## Archived (shipped) | Plan | Summary | diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AdminPolicyV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AdminPolicyV1.kt new file mode 100644 index 0000000000..6f4d083f87 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AdminPolicyV1.kt @@ -0,0 +1,148 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey + +/** + * `marmot.group.admin-policy.v1`, component `0x8003` — who may govern the group. + * + * ```text + * struct { opaque xonly_pubkey[32]; } MarmotAdminKeyV1; + * struct { MarmotAdminKeyV1 admins; } MarmotAdminPolicyV1; + * ``` + * + * On the wire that is one var-bytes vector whose payload is `32 * n` + * concatenated keys — the keys are fixed-size, so they carry no inner length + * prefix of their own. + * + * Each entry is a Marmot ACCOUNT identity: the same raw 32-byte x-only key a + * member carries as its MLS `BasicCredential` identity, not a separate + * authorization key. That is what makes a multi-device account share a single + * admin entry across all of its leaves. + * + * ## Active admins + * + * Listing a key is not sufficient. An account is an *active* admin when its key + * is here AND it has at least one current member leaf, which is why + * [isActiveAdmin] takes the group's member accounts rather than answering from + * the component alone. Valid group state never lists an account with no leaf: + * a commit that removes an account's last leaf must drop its key in the same + * commit. + * + * ## What this component cannot do + * + * There is no succession mechanism. If every active admin loses its keys, the + * group stays cryptographically valid and messages keep flowing, but every + * admin-gated change is frozen permanently. Local policy MUST NOT elevate + * another account to fill the gap — recovery means creating a new group. + */ +data class AdminPolicyV1( + /** Sorted, unique, non-empty 32-byte x-only account keys. */ + val admins: List, +) { + init { + require(admins.isNotEmpty()) { "admin policy must list at least one admin" } + admins.forEach { + require(it.size == KEY_SIZE) { "admin key must be $KEY_SIZE bytes, was ${it.size}" } + } + for (i in 1 until admins.size) { + val order = compareKeys(admins[i - 1], admins[i]) + require(order != 0) { "admin policy contains a duplicate key" } + require(order < 0) { "admin policy must be sorted lexicographically by key bytes" } + } + } + + val adminHexKeys: List get() = admins.map { it.toHexKey() } + + fun contains(accountIdentity: ByteArray): Boolean = admins.any { it.contentEquals(accountIdentity) } + + /** + * True when [accountIdentity] is listed AND holds a current member leaf. + * + * [memberAccounts] is the set of MLS-authenticated account identities with + * at least one leaf in the state being evaluated. + */ + fun isActiveAdmin( + accountIdentity: ByteArray, + memberAccounts: Collection, + ): Boolean = contains(accountIdentity) && memberAccounts.any { it.contentEquals(accountIdentity) } + + fun encode(): ByteArray { + val flat = ByteArray(admins.size * KEY_SIZE) + admins.forEachIndexed { index, key -> key.copyInto(flat, index * KEY_SIZE) } + val writer = TlsWriter() + writer.putOpaqueVarInt(flat) + return writer.toByteArray() + } + + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is AdminPolicyV1) return false + if (admins.size != other.admins.size) return false + return admins.indices.all { admins[it].contentEquals(other.admins[it]) } + } + + override fun hashCode(): Int = admins.fold(7) { acc, key -> 31 * acc + key.contentHashCode() } + + companion object { + const val COMPONENT_ID = AppComponentIds.ADMIN_POLICY_V1 + const val KEY_SIZE = 32 + + /** Build from arbitrary keys, sorting and de-duplicating. */ + fun of(keys: Collection): AdminPolicyV1 { + val unique = mutableListOf() + for (key in keys.sortedWith(::compareKeys)) { + if (unique.lastOrNull()?.contentEquals(key) != true) unique.add(key) + } + return AdminPolicyV1(unique) + } + + fun decode(bytes: ByteArray): AdminPolicyV1 { + val reader = TlsReader(bytes) + val flat = reader.readOpaqueVarInt() + require(!reader.hasRemaining) { "admin policy component has trailing bytes" } + require(flat.size % KEY_SIZE == 0) { + "admin policy payload must be a whole number of $KEY_SIZE-byte keys, was ${flat.size} bytes" + } + val keys = (0 until flat.size / KEY_SIZE).map { flat.copyOfRange(it * KEY_SIZE, (it + 1) * KEY_SIZE) } + // The constructor enforces sorted/unique/non-empty rather than + // repairing them: unsorted bytes are invalid group state, not a + // presentation detail to normalize away. + return AdminPolicyV1(keys) + } + + private fun compareKeys( + a: ByteArray, + b: ByteArray, + ): Int { + val common = minOf(a.size, b.size) + for (i in 0 until common) { + val diff = (a[i].toInt() and 0xFF) - (b[i].toInt() and 0xFF) + if (diff != 0) return diff + } + return a.size - b.size + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupBlossomImageV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupBlossomImageV1.kt new file mode 100644 index 0000000000..395c6d403f --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupBlossomImageV1.kt @@ -0,0 +1,168 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey + +/** + * `marmot.group.blossom.image.v1`, component `0x8002` — an encrypted group + * avatar stored on Blossom. + * + * ```text + * struct { + * opaque image_hash<0..32>; + * opaque image_key<0..32>; + * opaque image_nonce<0..12>; + * opaque image_upload_key<0..32>; + * opaque media_type<0..128>; + * } MarmotGroupBlossomImageV1; + * ``` + * + * An absent image is five EMPTY fields, not a zero-length component: the + * component is present and says "no image". + * + * ## Two changes from what MIP-01 packed into `marmot_group_data` + * + * 1. `image_key` and `image_upload_key` are the keys themselves, not HKDF + * seeds. `image_key` is the ChaCha20-Poly1305 content key; `image_upload_key` + * is the secret key of a freshly generated Nostr keypair whose public half is + * the blob's server-side write credential. + * 2. There is a `media_type` field, and it is bound into the AEAD: + * `aad = "marmot-group-image-v1" || 0x00 || canonical_media_type`. MIP-01 + * used an empty AAD and had nowhere to put the type. + * + * Both are wire-visible breaks from the MIP-era scheme. This type carries the + * component bytes; the encryption itself is a separate concern. + * + * ## An accepted v1 limitation + * + * `image_upload_key` travels inside the MLS-protected component, so every + * current member — and any former member that kept a copy — can sign write or + * delete authorizations for that blob for as long as the server honours the + * key. The admin gate protects updates to group state; it cannot revoke a + * capability already handed out. An admin restores a deleted image by uploading + * under a fresh key and committing a full replacement. + */ +data class GroupBlossomImageV1( + /** SHA-256 of the ENCRYPTED blob — its Blossom content id. */ + val imageHash: ByteArray?, + /** The ChaCha20-Poly1305 content key, not a seed. */ + val imageKey: ByteArray?, + val imageNonce: ByteArray?, + /** Secret key of a per-image Nostr keypair used for Blossom auth, not a seed. */ + val imageUploadKey: ByteArray?, + /** Media type of the DECRYPTED image; also bound into the AEAD's AAD. */ + val mediaType: String?, +) { + init { + val present = listOf(imageHash, imageKey, imageNonce, imageUploadKey).count { it != null } + require(present == 0 || present == 4) { + "group image fields must be all present or all absent" + } + if (present == 4) { + require(imageHash!!.size == HASH_SIZE) { "image_hash must be $HASH_SIZE bytes" } + require(imageKey!!.size == KEY_SIZE) { "image_key must be $KEY_SIZE bytes" } + require(imageNonce!!.size == NONCE_SIZE) { "image_nonce must be $NONCE_SIZE bytes" } + require(imageUploadKey!!.size == KEY_SIZE) { "image_upload_key must be $KEY_SIZE bytes" } + val type = requireNotNull(mediaType) { "a present image must carry a media_type" } + require(type.isNotEmpty()) { "media_type must not be empty when an image is present" } + require(type.encodeToByteArray().size <= MEDIA_TYPE_MAX_BYTES) { + "media_type exceeds $MEDIA_TYPE_MAX_BYTES bytes" + } + } else { + require(mediaType.isNullOrEmpty()) { "media_type must be empty when no image is present" } + } + } + + val hasImage: Boolean get() = imageHash != null + + val imageHashHex: HexKey? get() = imageHash?.toHexKey() + + fun encode(): ByteArray { + val writer = TlsWriter() + writer.putOpaqueVarInt(imageHash ?: ByteArray(0)) + writer.putOpaqueVarInt(imageKey ?: ByteArray(0)) + writer.putOpaqueVarInt(imageNonce ?: ByteArray(0)) + writer.putOpaqueVarInt(imageUploadKey ?: ByteArray(0)) + writer.putOpaqueVarInt(mediaType?.encodeToByteArray() ?: ByteArray(0)) + return writer.toByteArray() + } + + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is GroupBlossomImageV1) return false + return imageHash.contentEquals(other.imageHash) && + imageKey.contentEquals(other.imageKey) && + imageNonce.contentEquals(other.imageNonce) && + imageUploadKey.contentEquals(other.imageUploadKey) && + mediaType == other.mediaType + } + + override fun hashCode(): Int { + var result = imageHash?.contentHashCode() ?: 0 + result = 31 * result + (imageKey?.contentHashCode() ?: 0) + result = 31 * result + (imageNonce?.contentHashCode() ?: 0) + result = 31 * result + (imageUploadKey?.contentHashCode() ?: 0) + result = 31 * result + (mediaType?.hashCode() ?: 0) + return result + } + + companion object { + const val COMPONENT_ID = AppComponentIds.GROUP_BLOSSOM_IMAGE_V1 + const val HASH_SIZE = 32 + const val KEY_SIZE = 32 + const val NONCE_SIZE = 12 + const val MEDIA_TYPE_MAX_BYTES = 128 + + /** The canonical "this group has no image" state: five empty fields. */ + val ABSENT = GroupBlossomImageV1(null, null, null, null, null) + + /** ASCII domain label bound into the image AEAD, before the 0x00 separator. */ + const val AAD_LABEL = "marmot-group-image-v1" + + /** + * `"marmot-group-image-v1" || 0x00 || canonical_media_type`, with no + * length prefixes anywhere. + */ + fun aad(canonicalMediaType: String): ByteArray = AAD_LABEL.encodeToByteArray() + byteArrayOf(0) + canonicalMediaType.encodeToByteArray() + + fun decode(bytes: ByteArray): GroupBlossomImageV1 { + val reader = TlsReader(bytes) + val hash = reader.readOpaqueVarInt() + val key = reader.readOpaqueVarInt() + val nonce = reader.readOpaqueVarInt() + val uploadKey = reader.readOpaqueVarInt() + val mediaType = reader.readOpaqueVarInt() + require(!reader.hasRemaining) { "group image component has trailing bytes" } + + return GroupBlossomImageV1( + imageHash = hash.takeIf { it.isNotEmpty() }, + imageKey = key.takeIf { it.isNotEmpty() }, + imageNonce = nonce.takeIf { it.isNotEmpty() }, + imageUploadKey = uploadKey.takeIf { it.isNotEmpty() }, + mediaType = mediaType.takeIf { it.isNotEmpty() }?.decodeToString(), + ) + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupLifecycleV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupLifecycleV1.kt new file mode 100644 index 0000000000..8fb118de31 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupLifecycleV1.kt @@ -0,0 +1,72 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +/** + * `marmot.group.lifecycle.v1`, component `0x800c` — whether the group has been + * terminated. + * + * ```text + * enum { active(0), disbanded(1) } MarmotGroupLifecycleV1; + * ``` + * + * Exactly one byte. Every other value, and any encoding with trailing bytes, is + * invalid. + * + * `disbanded` is absorbing: once a disband Commit is selected, clients do not + * process later group traffic, do not select a later branch, and cannot rejoin + * the same group id. A replacement conversation is a new MLS group. + * + * A group predating this component may omit it and remains valid — it simply + * cannot be disbanded. An admin enables disbanding with one Commit that adds + * the `active` state and adds `0x800c` to the required component list; every + * resulting member leaf must advertise support for it. Once required, it stays + * required for the group's lifetime. + * + * The convergence handling of a disband Commit is deliberately NOT here: a + * valid disband candidate forces a bounded convergence pass even when it is a + * linear edge, so terminalization can only happen after branch selection. That + * belongs to the convergence engine (Stage 6). + */ +enum class GroupLifecycleV1( + val code: Int, +) { + ACTIVE(0), + DISBANDED(1), + ; + + fun encode(): ByteArray = byteArrayOf(code.toByte()) + + companion object { + const val COMPONENT_ID = AppComponentIds.GROUP_LIFECYCLE_V1 + + fun decode(bytes: ByteArray): GroupLifecycleV1 { + require(bytes.size == 1) { + "group lifecycle component must be exactly 1 byte, was ${bytes.size}" + } + return when (bytes[0].toInt()) { + ACTIVE.code -> ACTIVE + DISBANDED.code -> DISBANDED + else -> throw IllegalArgumentException("unknown group lifecycle state ${bytes[0]}") + } + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupProfileV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupProfileV1.kt new file mode 100644 index 0000000000..3bec7f7365 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupProfileV1.kt @@ -0,0 +1,85 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter + +/** + * `marmot.group.profile.v1`, component `0x8001` — the group's display name and + * description. + * + * ```text + * struct { + * opaque name<0..256>; + * opaque description<0..4096>; + * } MarmotGroupProfileV1; + * ``` + * + * Protocol equality is BYTE equality. Clients MUST NOT Unicode-normalize before + * hashing, signing, comparing, or storing this state — two visually identical + * names that differ in normalization form are different group states, and + * normalizing on the way in would make us disagree with a peer that did not. + * + * An empty name is valid at the protocol layer; rendering a fallback is an + * application choice. Note the distinction the component draws between an + * absent component and a present one holding two empty fields: the latter is a + * signed empty profile, and they are different canonical states even if an + * application renders them the same. + */ +data class GroupProfileV1( + val name: String, + val description: String, +) { + init { + require(name.encodeToByteArray().size <= NAME_MAX_BYTES) { + "group profile name exceeds $NAME_MAX_BYTES bytes" + } + require(description.encodeToByteArray().size <= DESCRIPTION_MAX_BYTES) { + "group profile description exceeds $DESCRIPTION_MAX_BYTES bytes" + } + } + + fun encode(): ByteArray { + val writer = TlsWriter() + writer.putOpaqueVarInt(name.encodeToByteArray()) + writer.putOpaqueVarInt(description.encodeToByteArray()) + return writer.toByteArray() + } + + companion object { + const val COMPONENT_ID = AppComponentIds.GROUP_PROFILE_V1 + const val NAME_MAX_BYTES = 256 + const val DESCRIPTION_MAX_BYTES = 4096 + + fun decode(bytes: ByteArray): GroupProfileV1 { + val reader = TlsReader(bytes) + val name = reader.readOpaqueVarInt() + val description = reader.readOpaqueVarInt() + require(!reader.hasRemaining) { "group profile component has trailing bytes" } + require(name.size <= NAME_MAX_BYTES) { "group profile name exceeds $NAME_MAX_BYTES bytes" } + require(description.size <= DESCRIPTION_MAX_BYTES) { + "group profile description exceeds $DESCRIPTION_MAX_BYTES bytes" + } + return GroupProfileV1(name.decodeToString(), description.decodeToString()) + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt new file mode 100644 index 0000000000..550e4100b2 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt @@ -0,0 +1,152 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary +import com.vitorpamplona.quartz.marmot.mls.components.ComponentsList +import com.vitorpamplona.quartz.marmot.mls.tree.Extension + +/** + * The current profile's read view of a GroupContext `app_data_dictionary` — the + * replacement for MIP-01's monolithic `MarmotGroupData` (`0xF2EE`). + * + * MIP-01 packed name, description, admins, routing, image and retention into + * one extension, so any change rewrote the whole blob. Those fields now live in + * six independently versioned components. This type just reads them together, + * because most callers want a coherent snapshot of one epoch rather than a + * component at a time. + * + * Every field is nullable, and that is meaningful rather than defensive: a + * group may legitimately carry no profile, no image, no retention, and — if it + * predates the component — no lifecycle. Only [adminPolicy] is required of + * every valid Marmot group, and its absence is a real defect rather than a + * configuration. + * + * ## What this deliberately does not do + * + * It does not validate cross-component invariants. The admin/leaf coupling rule + * ("every key in `admins` names an account with a current member leaf") is a + * property of the resulting epoch's tree, not of these bytes, so it is checked + * where the tree is in scope. Nor does it enforce that required components are + * actually present — that is commit validation, which owns the resulting state. + */ +data class MarmotGroupState( + /** Component ids this group requires, from the `app_components` entry. */ + val requiredComponents: List, + val profile: GroupProfileV1?, + val adminPolicy: AdminPolicyV1?, + val routing: NostrRoutingV1?, + val image: GroupBlossomImageV1?, + val retention: MessageRetentionV1?, + val lifecycle: GroupLifecycleV1?, +) { + /** True once a disband Commit has been applied. Absorbing and terminal. */ + val isDisbanded: Boolean get() = lifecycle == GroupLifecycleV1.DISBANDED + + /** + * True when this group is governed by the current profile at all — i.e. it + * requires the account identity proof component. A group requiring `0xf2f1` + * instead is a legacy group outside this profile, and one requiring neither + * is not a valid Marmot group in either. + */ + val isCurrentProfile: Boolean + get() = requiredComponents.contains(AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2) + + fun requires(componentId: Int): Boolean = requiredComponents.contains(componentId) + + /** + * Whether [accountIdentity] may commit admin-gated changes in this state. + * + * [memberAccounts] must be the MLS-authenticated account identities holding + * at least one leaf in the SAME state. Being listed in the admin policy is + * not enough: the account also has to still be in the group. + */ + fun isActiveAdmin( + accountIdentity: ByteArray, + memberAccounts: Collection, + ): Boolean = adminPolicy?.isActiveAdmin(accountIdentity, memberAccounts) == true + + companion object { + /** + * Read every known component. A component whose bytes fail to decode + * throws rather than being dropped: invalid signed group state is a + * defect to surface, not a field to silently treat as absent. + */ + fun fromDictionary(dictionary: AppDataDictionary): MarmotGroupState = + MarmotGroupState( + requiredComponents = ComponentsList.supportedOrRequired(dictionary), + profile = dictionary[GroupProfileV1.COMPONENT_ID]?.let { GroupProfileV1.decode(it) }, + adminPolicy = dictionary[AdminPolicyV1.COMPONENT_ID]?.let { AdminPolicyV1.decode(it) }, + routing = dictionary[NostrRoutingV1.COMPONENT_ID]?.let { NostrRoutingV1.decode(it) }, + image = dictionary[GroupBlossomImageV1.COMPONENT_ID]?.let { GroupBlossomImageV1.decode(it) }, + retention = dictionary[MessageRetentionV1.COMPONENT_ID]?.let { MessageRetentionV1.decode(it) }, + lifecycle = dictionary[GroupLifecycleV1.COMPONENT_ID]?.let { GroupLifecycleV1.decode(it) }, + ) + + fun fromExtensions(extensions: List): MarmotGroupState = fromDictionary(AppDataDictionary.fromExtensionsOrEmpty(extensions)) + + /** + * Build the GroupContext dictionary for a new current-profile group. + * + * [requiredComponents] always gains `0x8009`: every current-profile + * GroupContext must require the account identity proof even though its + * data is leaf-only and never appears in this dictionary. + */ + fun buildDictionary( + adminPolicy: AdminPolicyV1, + routing: NostrRoutingV1? = null, + profile: GroupProfileV1? = null, + image: GroupBlossomImageV1? = null, + retention: MessageRetentionV1? = null, + lifecycle: GroupLifecycleV1? = GroupLifecycleV1.ACTIVE, + extraRequiredComponents: Collection = emptyList(), + ): AppDataDictionary { + var dictionary = AppDataDictionary.EMPTY + + val required = mutableSetOf(AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2, AdminPolicyV1.COMPONENT_ID) + required.addAll(extraRequiredComponents) + + dictionary = dictionary.with(AdminPolicyV1.COMPONENT_ID, adminPolicy.encode()) + profile?.let { + required.add(GroupProfileV1.COMPONENT_ID) + dictionary = dictionary.with(GroupProfileV1.COMPONENT_ID, it.encode()) + } + routing?.let { + required.add(NostrRoutingV1.COMPONENT_ID) + dictionary = dictionary.with(NostrRoutingV1.COMPONENT_ID, it.encode()) + } + image?.let { + required.add(GroupBlossomImageV1.COMPONENT_ID) + dictionary = dictionary.with(GroupBlossomImageV1.COMPONENT_ID, it.encode()) + } + retention?.let { + required.add(MessageRetentionV1.COMPONENT_ID) + dictionary = dictionary.with(MessageRetentionV1.COMPONENT_ID, it.encode()) + } + lifecycle?.let { + required.add(GroupLifecycleV1.COMPONENT_ID) + dictionary = dictionary.with(GroupLifecycleV1.COMPONENT_ID, it.encode()) + } + + return dictionary.with(ComponentsList.APP_COMPONENTS_ID, ComponentsList.encode(required)) + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MessageRetentionV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MessageRetentionV1.kt new file mode 100644 index 0000000000..4b240ee781 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MessageRetentionV1.kt @@ -0,0 +1,94 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter + +/** + * `marmot.group.message-retention.v1`, component `0x8005` — disappearing + * messages. + * + * ```text + * struct { uint64 disappearing_message_secs; } MarmotMessageRetentionV1; + * ``` + * + * Exactly eight big-endian bytes, with NO length prefix — unlike most Marmot + * component fields. `0` means disabled, and removing the component is + * equivalent to `0`. (MIP-01 spelled this as a variable-length field and + * treated `0` as invalid; both changed.) + * + * Every application message pins the retention state of its OWN source epoch. + * A later update or removal does not shorten, extend, or restore an existing + * message's expiry, and a retry of the same MLS message reuses the same pinned + * value. + * + * The duration is authenticated but the base timestamp is the sender's own + * `created_at`, so a sender that back- or forward-dates its message shifts when + * that message expires. Expiry is therefore advisory — it inherits the trust + * already placed in the MLS-authenticated sender and is not a deletion + * guarantee against a hostile one. + */ +data class MessageRetentionV1( + val disappearingMessageSecs: ULong, +) { + val isEnabled: Boolean get() = disappearingMessageSecs != 0uL + + /** + * `created_at + disappearing_message_secs` in exact, checked uint64 + * arithmetic, or null when the result is undefined. + * + * Null means the sender omits the transport expiry hint entirely; the + * component state and the message both stay valid. Never wrap, saturate, + * or route this through a floating-point JSON number. + */ + fun expiryTimestamp(createdAt: Long): ULong? { + if (!isEnabled) return null + if (createdAt < 0) return null + val base = createdAt.toULong() + val sum = base + disappearingMessageSecs + // ULong wraps silently on overflow, so detect it by comparison. + if (sum < base) return null + return sum + } + + fun encode(): ByteArray { + val writer = TlsWriter() + writer.putUint64(disappearingMessageSecs.toLong()) + return writer.toByteArray() + } + + companion object { + const val COMPONENT_ID = AppComponentIds.MESSAGE_RETENTION_V1 + + val DISABLED = MessageRetentionV1(0uL) + + fun decode(bytes: ByteArray): MessageRetentionV1 { + require(bytes.size == 8) { + "message retention component must be exactly 8 bytes, was ${bytes.size}" + } + val reader = TlsReader(bytes) + // readUint64 hands back a Long; reinterpret rather than widen, so + // a duration above 2^63 stays the value the sender wrote. + return MessageRetentionV1(reader.readUint64().toULong()) + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/NostrRoutingV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/NostrRoutingV1.kt new file mode 100644 index 0000000000..6f407002ea --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/NostrRoutingV1.kt @@ -0,0 +1,156 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey + +/** + * `marmot.transport.nostr.routing.v1`, component `0x8004` — where a + * Nostr-routed group's kind:445 traffic goes. + * + * ```text + * struct { opaque url<1..512>; } MarmotNostrRelayV1; + * struct { + * opaque nostr_group_id[32]; + * MarmotNostrRelayV1 relays; + * } MarmotNostrRoutingV1; + * ``` + * + * `nostr_group_id` is 32 RAW bytes with no length prefix, followed by a + * var-bytes vector whose payload is a sequence of var-bytes URLs. + * + * The routing id is a delivery address, not an identity: it MUST come from + * cryptographically secure randomness and MUST NOT be derived from any account + * id, member id, public key, MLS group id, KeyPackage id, message id, or relay + * URL. Deriving it would let relays link a group to its members. + * + * ## Rotation + * + * Changing `nostr_group_id` is a rotation, and the commit carrying it must be + * published to the PRIOR epoch's address — that is where members are listening. + * Members keep accepting traffic at a prior address while any epoch that used + * it is still inside a retained-history window, so a client has to be able to + * map several routing ids to one group. + * + * Rotating after a removal does not hide anything by itself: a removed member + * can decrypt the removal commit under the source epoch and read a routing + * update carried in it. Hiding a replacement id takes two commits — remove + * first, rotate from the post-removal epoch. + */ +data class NostrRoutingV1( + val nostrGroupId: ByteArray, + /** Sorted, unique, 1..16 relay URLs, byte-compared exactly. */ + val relays: List, +) { + init { + require(nostrGroupId.size == GROUP_ID_SIZE) { + "nostr_group_id must be $GROUP_ID_SIZE bytes, was ${nostrGroupId.size}" + } + require(relays.isNotEmpty()) { "Nostr routing relay list must not be empty" } + require(relays.size <= MAX_RELAYS) { "Nostr routing relay list exceeds $MAX_RELAYS entries" } + relays.forEach { requireValidRelayUrl(it) } + for (i in 1 until relays.size) { + require(relays[i - 1] != relays[i]) { "Nostr routing relay list contains a duplicate" } + require(relays[i - 1] < relays[i]) { "Nostr routing relay list must be sorted" } + } + } + + val nostrGroupIdHex: HexKey get() = nostrGroupId.toHexKey() + + fun encode(): ByteArray { + val entries = TlsWriter() + relays.forEach { entries.putOpaqueVarInt(it.encodeToByteArray()) } + + val writer = TlsWriter() + writer.putBytes(nostrGroupId) + writer.putOpaqueVarInt(entries.toByteArray()) + return writer.toByteArray() + } + + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is NostrRoutingV1) return false + return nostrGroupId.contentEquals(other.nostrGroupId) && relays == other.relays + } + + override fun hashCode(): Int = 31 * nostrGroupId.contentHashCode() + relays.hashCode() + + companion object { + const val COMPONENT_ID = AppComponentIds.NOSTR_ROUTING_V1 + const val GROUP_ID_SIZE = 32 + const val MAX_RELAYS = 16 + const val MAX_RELAY_URL_BYTES = 512 + + /** Build from arbitrary relay URLs, sorting and de-duplicating. */ + fun of( + nostrGroupId: ByteArray, + relays: Collection, + ) = NostrRoutingV1(nostrGroupId, relays.distinct().sorted()) + + fun decode(bytes: ByteArray): NostrRoutingV1 { + require(bytes.size >= GROUP_ID_SIZE) { "Nostr routing component is missing nostr_group_id" } + val reader = TlsReader(bytes) + val groupId = reader.readBytes(GROUP_ID_SIZE) + val relayVector = reader.readOpaqueVarInt() + require(!reader.hasRemaining) { "Nostr routing component has trailing bytes" } + + val relayReader = TlsReader(relayVector) + val relays = mutableListOf() + while (relayReader.hasRemaining) { + relays.add(relayReader.readOpaqueVarInt().decodeToString()) + } + return NostrRoutingV1(groupId, relays) + } + + /** + * The Nostr relay URL profile from `transports/nostr.md`. + * + * Deliberately a hand-rolled check rather than a pass through this + * project's relay-URL normalizer: the component's bytes are signed + * group state, and a client MUST NOT rewrite them while applying it. + * Anything that could normalize is the wrong tool here. + */ + fun requireValidRelayUrl(url: String) { + val bytes = url.encodeToByteArray() + require(bytes.isNotEmpty()) { "relay URL must not be empty" } + require(bytes.size <= MAX_RELAY_URL_BYTES) { + "relay URL exceeds $MAX_RELAY_URL_BYTES bytes" + } + val scheme = + when { + url.startsWith("wss://") -> "wss://" + url.startsWith("ws://") -> "ws://" + else -> throw IllegalArgumentException("relay URL scheme must be ws or wss: $url") + } + require(!url.contains('#')) { "relay URL must not carry a fragment: $url" } + + val afterScheme = url.substring(scheme.length) + val authority = afterScheme.takeWhile { it != '/' && it != '?' } + require(authority.isNotEmpty()) { "relay URL must have a host: $url" } + require(!authority.contains('@')) { + "relay URL must not carry a username or password: $url" + } + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index ae50fd036e..ff3b4d4b14 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -20,6 +20,8 @@ */ package com.vitorpamplona.quartz.marmot.mls.group +import com.vitorpamplona.quartz.marmot.appComponents.AdminPolicyV1 +import com.vitorpamplona.quartz.marmot.appComponents.MarmotGroupState import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter @@ -188,16 +190,62 @@ class MlsGroup private constructor( /** Parsed Marmot Group Data Extension from the current GroupContext, or null. */ fun currentMarmotData(): MarmotGroupData? = MarmotGroupData.fromExtensions(groupContext.extensions) - /** True if the local member appears in the group's current `admin_pubkeys` list. */ - fun isLocalAdmin(): Boolean { - val id = myIdentityHex() ?: return false - return currentMarmotData()?.isAdmin(id) ?: false + /** The current profile's component view of this GroupContext. */ + fun currentGroupState(): MarmotGroupState = MarmotGroupState.fromExtensions(groupContext.extensions) + + /** + * The group's configured admin account identities, as lowercase hex. + * + * Reads whichever profile this group is on: the current profile's + * `marmot.group.admin-policy.v1` component (`0x8003`) when present, + * otherwise MIP-01's `admin_pubkeys` field inside `marmot_group_data` + * (`0xF2EE`). Empty means the group names no admins at all, which happens + * during bootstrap and in groups that carry neither. + * + * The current profile is checked first because a group can only be one of + * the two — MDK rejects a group that requires both proof profiles — and a + * current-profile group is the one whose authorization we must not skip. + */ + fun currentAdminIdentities(): Set = adminIdentitiesIn(groupContext.extensions) + + /** + * The admin set named by [extensions], preferring the current profile. + * + * Decodes ONLY the admin policy, never the whole component set. Authorization + * must not depend on the validity of components it does not read: a + * malformed group profile is a defect worth surfacing where the profile is + * used, but it must not make the group un-committable by taking the admin + * check down with it. + */ + private fun adminIdentitiesIn(extensions: List): Set { + val policyBytes = AppDataDictionary.fromExtensionsOrEmpty(extensions)[AdminPolicyV1.COMPONENT_ID] + if (policyBytes != null) return AdminPolicyV1.decode(policyBytes).adminHexKeys.toSet() + return MarmotGroupData + .fromExtensions(extensions) + ?.adminPubkeys + ?.toSet() + .orEmpty() } - /** True if the member at [leafIndex] is listed as admin in the current group data. */ + /** + * Account identities holding at least one current member leaf, as hex. + * + * Admin authority is per ACCOUNT, not per leaf: a multi-device account + * shares one admin entry across all of its leaves. + */ + fun currentMemberIdentities(): Set = (0 until tree.leafCount).mapNotNullTo(mutableSetOf()) { memberIdentityHex(it) } + + /** True if the local member is an active admin. */ + fun isLocalAdmin(): Boolean = isLeafAdmin(myLeafIndex) + + /** + * True if the member at [leafIndex] is an ACTIVE admin: listed in the + * group's admin set and still holding a leaf. The leaf lookup satisfies + * the second half by construction. + */ fun isLeafAdmin(leafIndex: Int): Boolean { val id = memberIdentityHex(leafIndex) ?: return false - return currentMarmotData()?.isAdmin(id) ?: false + return id in currentAdminIdentities() } // --- State Persistence --- @@ -2340,16 +2388,12 @@ class MlsGroup private constructor( committerLeafIndex: Int = myLeafIndex, ) { if (proposals.isEmpty()) return - // NOTE: this gate reads MIP-01's `marmot_group_data` (0xF2EE). A - // current-profile group keeps its admin list in the - // `marmot.group.admin-policy.v1` component (0x8003) instead, so - // `currentMarmotData()` is null there and this returns without - // enforcing anything. That is a real gap, not a deliberate exemption: - // current-profile authorization arrives with the admin-policy component - // (see quartz/plans/2026-09-08-marmot-spec-resync.md, Stage 3). - val marmot = currentMarmotData() - val adminsConfigured = marmot != null && marmot.adminPubkeys.isNotEmpty() - if (!adminsConfigured || isLeafAdmin(committerLeafIndex)) return + // Reads whichever profile the group is on: the admin-policy component + // (0x8003) for current-profile groups, `marmot_group_data` (0xF2EE) + // for legacy ones. An empty set means bootstrap — no admins named yet — + // and the gate stays open, mirroring MlsGroupManager.updateGroupExtensions. + val admins = currentAdminIdentities() + if (admins.isEmpty() || isLeafAdmin(committerLeafIndex)) return val allSelfRemove = proposals.all { it.proposal is Proposal.SelfRemove && it.senderLeafIndex == committerLeafIndex } @@ -2377,26 +2421,45 @@ class MlsGroup private constructor( * bootstrap before any admin is named. */ internal fun enforceNoAdminDepletion(proposals: List) { - val currentAdmins = currentMarmotData()?.adminPubkeys?.toSet().orEmpty() + val currentAdmins = currentAdminIdentities() if (currentAdmins.isEmpty()) return // Bootstrap: no admins yet, nothing to deplete. - // Resolve the effective admin list after any GroupContextExtensions - // proposal in this commit. If none is present, keep the current list. + // Resolve the effective admin list after this commit. Three carriers can + // change it, and they are checked in the order the commit applies them: + // an AppDataUpdate on 0x8003 (current profile), then a + // GroupContextExtensions proposal replacing the whole extension list + // (either profile). AppDataUpdate is resolved last because + // `applyAppDataUpdateProposals` runs after the rest of the list. val gce = proposals .asSequence() .map { it.proposal } .filterIsInstance() .lastOrNull() - val projectedMarmot = - if (gce != null) { - MarmotGroupData.fromExtensions(gce.extensions) - } else { - currentMarmotData() + val extensionsAfterGce = gce?.extensions ?: groupContext.extensions + + val adminUpdate = + proposals + .asSequence() + .map { it.proposal } + .filterIsInstance() + .lastOrNull { it.componentId == AdminPolicyV1.COMPONENT_ID } + + val adminSet = + when (val operation = adminUpdate?.operation) { + is Proposal.AppDataUpdate.Operation.Update -> + AdminPolicyV1.decode(operation.data).adminHexKeys.toSet() + + // Removing the admin policy is never valid — it is the sole + // admin authority for the group's lifetime — so an empty set + // here trips the depletion check below, which is the outcome + // we want. + Proposal.AppDataUpdate.Operation.Remove -> emptySet() + + null -> adminIdentitiesIn(extensionsAfterGce) } - val adminSet = projectedMarmot?.adminPubkeys?.toSet().orEmpty() check(adminSet.isNotEmpty()) { - "MIP-03: commit would empty admin_pubkeys (admin depletion)" + "commit would leave the group with no admins (admin depletion)" } // Compute which leaves remain after applying Removes/SelfRemoves. diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AppComponentCodecTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AppComponentCodecTest.kt new file mode 100644 index 0000000000..a367c40b57 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AppComponentCodecTest.kt @@ -0,0 +1,290 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * Per-component validation rules that the MDK-generated fixture cannot reach: + * it only ever contains valid, happy-path state. + */ +class AppComponentCodecTest { + private fun key(b: Int) = ByteArray(32) { b.toByte() } + + // --- profile -------------------------------------------------------------- + + @Test + fun profileRoundTripsIncludingEmptyAndUnicode() { + for ( + profile in + listOf( + GroupProfileV1("", ""), + GroupProfileV1("Marmot", "a group"), + GroupProfileV1("groupe café ☕", "descrição"), + ) + ) { + assertEquals(profile, GroupProfileV1.decode(profile.encode())) + } + } + + @Test + fun profileEqualityIsByteEqualityNotUnicodeEquivalence() { + // U+00E9 vs "e" + U+0301 render identically and are canonically + // equivalent, but they are DIFFERENT group states. Normalizing either + // way would make us disagree with a peer that did not normalize. + val precomposed = GroupProfileV1("caf\u00e9", "") + val decomposed = GroupProfileV1("cafe\u0301", "") + assertTrue(precomposed != decomposed) + assertTrue(!precomposed.encode().contentEquals(decomposed.encode())) + } + + @Test + fun profileLengthLimitsAreEnforcedOnBothSides() { + assertFailsWith { GroupProfileV1("x".repeat(257), "") } + assertFailsWith { GroupProfileV1("", "x".repeat(4097)) } + // Limits are in BYTES, not characters: a 3-byte character trips the + // limit sooner than its length suggests. + assertFailsWith { GroupProfileV1("☕".repeat(86), "") } + GroupProfileV1("x".repeat(256), "x".repeat(4096)) + } + + @Test + fun profileRejectsTrailingBytes() { + assertFailsWith { + GroupProfileV1("a", "b").encode().let { GroupProfileV1.decode(it + 0x00) } + } + } + + // --- admin policy --------------------------------------------------------- + + @Test + fun adminPolicySortsAndDeduplicatesOnBuild() { + val policy = AdminPolicyV1.of(listOf(key(3), key(1), key(3), key(2))) + assertEquals(listOf(key(1), key(2), key(3)).map { it.toHexKey() }, policy.adminHexKeys) + assertEquals(policy, AdminPolicyV1.decode(policy.encode())) + } + + @Test + fun adminPolicyRejectsUnsortedOrDuplicateWireBytes() { + // Decoding must not repair what it reads: an unsorted admin list is + // invalid signed state, and normalizing it would leave two peers + // holding different bytes they each considered valid. + val unsorted = AdminPolicyV1.of(listOf(key(1), key(2))).encode() + val swapped = unsorted.copyOf() + // Swap the two 32-byte keys inside the payload (1 varint prefix byte). + for (i in 0 until 32) { + val a = swapped[1 + i] + swapped[1 + i] = swapped[33 + i] + swapped[33 + i] = a + } + assertFailsWith { AdminPolicyV1.decode(swapped) } + + val duplicated = swapped.copyOf() + for (i in 0 until 32) duplicated[33 + i] = duplicated[1 + i] + assertFailsWith { AdminPolicyV1.decode(duplicated) } + } + + @Test + fun adminPolicyRejectsAnEmptyListAndRaggedPayloads() { + assertFailsWith { AdminPolicyV1(emptyList()) } + assertFailsWith { AdminPolicyV1.of(emptyList()) } + assertFailsWith { AdminPolicyV1.decode("00".hexToByteArray()) } + assertFailsWith { AdminPolicyV1(listOf(ByteArray(31))) } + // 33 payload bytes is not a whole number of keys. + assertFailsWith { + AdminPolicyV1.decode(byteArrayOf(33) + ByteArray(33)) + } + } + + @Test + fun adminPolicySortsByUnsignedByteValue() { + // 0x80 must sort AFTER 0x01 — a signed comparison would invert this, + // and roughly half of all x-only keys start above 0x7f. + val low = ByteArray(32).also { it[0] = 0x01 } + val high = ByteArray(32).also { it[0] = 0x80.toByte() } + assertEquals(listOf(low, high).map { it.toHexKey() }, AdminPolicyV1.of(listOf(high, low)).adminHexKeys) + } + + // --- nostr routing -------------------------------------------------------- + + @Test + fun routingRoundTripsAndSorts() { + val routing = NostrRoutingV1.of(key(0x5a), listOf("wss://relay.damus.io", "wss://nos.lol")) + assertEquals(listOf("wss://nos.lol", "wss://relay.damus.io"), routing.relays) + assertEquals(routing, NostrRoutingV1.decode(routing.encode())) + } + + @Test + fun routingEnforcesItsStructuralLimits() { + assertFailsWith { NostrRoutingV1(ByteArray(31), listOf("wss://a.example")) } + assertFailsWith { NostrRoutingV1(key(1), emptyList()) } + assertFailsWith { + NostrRoutingV1.of(key(1), (1..17).map { "wss://r$it.example" }) + } + assertFailsWith { + NostrRoutingV1(key(1), listOf("wss://b.example", "wss://a.example")) + } + } + + @Test + fun routingEnforcesTheRelayUrlProfile() { + for ( + bad in + listOf( + "https://relay.example", + "relay.example", + "wss://", + "wss://user:pass@relay.example", + "wss://relay.example#frag", + "wss://" + "a".repeat(600), + "", + ) + ) { + assertFailsWith("must reject $bad") { + NostrRoutingV1(key(1), listOf(bad)) + } + } + for ( + good in + listOf( + "wss://relay.example", + "ws://127.0.0.1:8080", + "wss://relay.example/path", + "wss://relay.example:443/?x=1", + ) + ) { + NostrRoutingV1(key(1), listOf(good)) + } + } + + // --- message retention ---------------------------------------------------- + + @Test + fun retentionIsAFixedWidthUint64() { + val retention = MessageRetentionV1(86_400uL) + assertEquals(8, retention.encode().size, "no length prefix, unlike most component fields") + assertEquals("0000000000015180", retention.encode().toHexKey()) + assertEquals(retention, MessageRetentionV1.decode(retention.encode())) + assertFailsWith { MessageRetentionV1.decode(ByteArray(7)) } + assertFailsWith { MessageRetentionV1.decode(ByteArray(9)) } + } + + @Test + fun retentionZeroMeansDisabledRatherThanInvalid() { + // MIP-01 rejected 0; the component defines it as "disabled", and + // removing the component is equivalent. + assertTrue(!MessageRetentionV1.DISABLED.isEnabled) + assertEquals(MessageRetentionV1.DISABLED, MessageRetentionV1.decode(ByteArray(8))) + assertNull(MessageRetentionV1.DISABLED.expiryTimestamp(1_700_000_000L)) + } + + @Test + fun retentionExpiryIsCheckedNotWrapped() { + val hour = MessageRetentionV1(3_600uL) + assertEquals(1_700_003_600uL, hour.expiryTimestamp(1_700_000_000L)) + + // A duration near the uint64 ceiling must yield "undefined" rather than + // wrapping to a small timestamp that would expire the message at once. + val huge = MessageRetentionV1(ULong.MAX_VALUE) + assertNull(huge.expiryTimestamp(1L)) + assertEquals(ULong.MAX_VALUE, huge.expiryTimestamp(0L)) + assertNull(hour.expiryTimestamp(-1L)) + } + + @Test + fun retentionCarriesDurationsAboveTheSignedLongRange() { + // uint64 on the wire; a value above 2^63 must survive the round trip + // rather than reading back as a negative Long. + val big = MessageRetentionV1(ULong.MAX_VALUE) + assertEquals("ffffffffffffffff", big.encode().toHexKey()) + assertEquals(big, MessageRetentionV1.decode(big.encode())) + } + + // --- lifecycle ------------------------------------------------------------ + + @Test + fun lifecycleIsExactlyOneByte() { + assertContentEquals(byteArrayOf(0), GroupLifecycleV1.ACTIVE.encode()) + assertContentEquals(byteArrayOf(1), GroupLifecycleV1.DISBANDED.encode()) + assertEquals(GroupLifecycleV1.ACTIVE, GroupLifecycleV1.decode(byteArrayOf(0))) + assertEquals(GroupLifecycleV1.DISBANDED, GroupLifecycleV1.decode(byteArrayOf(1))) + assertFailsWith { GroupLifecycleV1.decode(byteArrayOf(2)) } + assertFailsWith { GroupLifecycleV1.decode(byteArrayOf(0, 0)) } + assertFailsWith { GroupLifecycleV1.decode(ByteArray(0)) } + } + + // --- blossom image -------------------------------------------------------- + + @Test + fun absentImageIsFiveEmptyFieldsNotZeroBytes() { + val encoded = GroupBlossomImageV1.ABSENT.encode() + assertContentEquals("0000000000".hexToByteArray(), encoded) + assertEquals(GroupBlossomImageV1.ABSENT, GroupBlossomImageV1.decode(encoded)) + assertTrue(!GroupBlossomImageV1.ABSENT.hasImage) + } + + @Test + fun presentImageRoundTripsWithItsMediaType() { + val image = + GroupBlossomImageV1( + imageHash = key(0xaa), + imageKey = key(0xbb), + imageNonce = ByteArray(12) { 0xcc.toByte() }, + imageUploadKey = key(0xdd), + mediaType = "image/png", + ) + assertTrue(image.hasImage) + assertEquals(image, GroupBlossomImageV1.decode(image.encode())) + } + + @Test + fun imageFieldsAreAllOrNothing() { + assertFailsWith("a half-populated image is invalid") { + GroupBlossomImageV1(key(1), key(2), ByteArray(12), null, "image/png") + } + assertFailsWith("a present image must name its media type") { + GroupBlossomImageV1(key(1), key(2), ByteArray(12), key(3), null) + } + assertFailsWith("an absent image carries no media type") { + GroupBlossomImageV1(null, null, null, null, "image/png") + } + } + + @Test + fun imageAadBindsTheMediaTypeWithNoLengthPrefixes() { + // "marmot-group-image-v1" || 0x00 || media_type. MIP-01 used an empty + // AAD and had no media type at all, so this is a wire-visible break. + val aad = GroupBlossomImageV1.aad("image/png") + assertEquals( + "marmot-group-image-v1".encodeToByteArray().size + 1 + "image/png".length, + aad.size, + ) + assertEquals(0, aad["marmot-group-image-v1".length].toInt()) + assertTrue(!GroupBlossomImageV1.aad("image/png").contentEquals(GroupBlossomImageV1.aad("image/jpeg"))) + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileAuthorizationTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileAuthorizationTest.kt new file mode 100644 index 0000000000..5dc2df88e2 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileAuthorizationTest.kt @@ -0,0 +1,166 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroup +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertTrue + +/** + * Closes the gap Stage 1 left open: a current-profile group keeps its admin + * list in `marmot.group.admin-policy.v1` (`0x8003`), not in MIP-01's + * `marmot_group_data` (`0xF2EE`), so the authorization gates had nothing to + * read and let everything through. + * + * The tests below drive real groups rather than calling the gates directly, + * because the gates only matter if the commit path actually reaches them. + */ +class CurrentProfileAuthorizationTest { + private val aliceAccount = "11".repeat(32).hexToByteArray() + private val bobAccount = "22".repeat(32).hexToByteArray() + + /** A group whose GroupContext carries a current-profile dictionary naming [admins]. */ + private fun currentProfileGroup( + creator: ByteArray, + admins: List, + ): MlsGroup { + val group = MlsGroup.create(creator) + val dictionary = + MarmotGroupState.buildDictionary( + adminPolicy = AdminPolicyV1.of(admins), + routing = NostrRoutingV1.of(ByteArray(32) { 0x5a }, listOf("wss://relay.example")), + profile = GroupProfileV1("Interop", ""), + ) + // Installed through GroupContextExtensions during bootstrap, before any + // admin is named — the same relaxation the legacy path uses. + group.proposeGroupContextExtensions(listOf(dictionary.toExtension())) + group.commit() + return group + } + + @Test + fun theAdminSetIsReadFromTheComponentNotFromMarmotGroupData() { + val group = currentProfileGroup(aliceAccount, listOf(aliceAccount)) + + assertEquals(setOf(aliceAccount.toHexKey()), group.currentAdminIdentities()) + assertTrue(group.isLocalAdmin()) + // Nothing is carrying the MIP-01 extension; the admins came from 0x8003. + assertEquals(null, group.currentMarmotData()) + assertTrue(group.currentGroupState().isCurrentProfile) + } + + @Test + fun aNonAdminCannotCommitAComponentChange() { + // Alice creates the group and names only herself as admin, then adds + // Bob. Bob is a member but not an admin. + val alice = currentProfileGroup(aliceAccount, listOf(aliceAccount)) + val bobBundle = alice.createKeyPackage(bobAccount, ByteArray(0)) + val add = alice.addMember(bobBundle.keyPackage.toTlsBytes()) + val bob = MlsGroup.processWelcome(add.welcomeBytes!!, bobBundle) + + assertTrue(!bob.isLocalAdmin()) + assertEquals(setOf(aliceAccount.toHexKey()), bob.currentAdminIdentities()) + + bob.proposeAppDataUpdate( + AppComponentIds.GROUP_PROFILE_V1, + GroupProfileV1("hijacked", "").encode(), + ) + assertFailsWith("a non-admin must not be able to rewrite group state") { + bob.commit() + } + } + + @Test + fun anAdminCanCommitAComponentChange() { + val alice = currentProfileGroup(aliceAccount, listOf(aliceAccount)) + alice.proposeAppDataUpdate( + AppComponentIds.GROUP_PROFILE_V1, + GroupProfileV1("renamed", "by an admin").encode(), + ) + alice.commit() + + assertEquals("renamed", alice.currentGroupState().profile?.name) + } + + @Test + fun adminshipCanBeHandedToAnotherMember() { + val alice = currentProfileGroup(aliceAccount, listOf(aliceAccount)) + val bobBundle = alice.createKeyPackage(bobAccount, ByteArray(0)) + alice.addMember(bobBundle.keyPackage.toTlsBytes()) + + // Bob holds a leaf, so promoting him and stepping down is valid: the + // group still has an active admin afterwards. + alice.proposeAppDataUpdate(AdminPolicyV1.COMPONENT_ID, AdminPolicyV1.of(listOf(bobAccount)).encode()) + alice.commit() + + assertEquals(setOf(bobAccount.toHexKey()), alice.currentAdminIdentities()) + assertTrue(!alice.isLocalAdmin(), "Alice gave up her own admin rights") + } + + @Test + fun anAdminSetWithNoMemberLeafIsRejected() { + // The admin/leaf coupling rule: every key in `admins` must name an + // account holding a current leaf. Promoting a non-member would create + // a phantom admin that activates the instant a matching leaf appears, + // with no commit anyone else observed. + val alice = currentProfileGroup(aliceAccount, listOf(aliceAccount)) + alice.proposeAppDataUpdate(AdminPolicyV1.COMPONENT_ID, AdminPolicyV1.of(listOf(bobAccount)).encode()) + + assertFailsWith { alice.commit() } + } + + @Test + fun removingTheAdminPolicyComponentIsRejectedAsDepletion() { + // The admin policy is the sole admin authority and must remain present + // for the group's lifetime, so an AppDataUpdate remove targeting it can + // never be valid — not even from an admin. + val alice = currentProfileGroup(aliceAccount, listOf(aliceAccount)) + alice.proposeAppDataRemoval(AdminPolicyV1.COMPONENT_ID) + + assertFailsWith { alice.commit() } + } + + @Test + fun aMalformedUnrelatedComponentDoesNotBlockAuthorization() { + // Authorization reads only 0x8003. A corrupt profile component is a + // defect worth surfacing where the profile is used, but it must not + // take the admin check down with it and freeze the group. + val alice = currentProfileGroup(aliceAccount, listOf(aliceAccount)) + val corrupted = + AppDataDictionary + .fromExtensionsOrEmpty(alice.groupContextExtensionsSnapshot()) + .with(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(0x7f)) + + alice.proposeGroupContextExtensions(listOf(corrupted.toExtension())) + alice.commit() + + assertEquals(setOf(aliceAccount.toHexKey()), alice.currentAdminIdentities()) + assertTrue(alice.isLocalAdmin()) + assertFailsWith("the corrupt component still surfaces when read") { + alice.currentGroupState() + } + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupStateVectorTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupStateVectorTest.kt new file mode 100644 index 0000000000..f385caa7cf --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupStateVectorTest.kt @@ -0,0 +1,170 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.TestResourceLoader +import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary +import com.vitorpamplona.quartz.marmot.mls.components.ComponentData +import com.vitorpamplona.quartz.nip01Core.core.JsonMapper +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlinx.serialization.SerialName +import kotlinx.serialization.Serializable +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertNotNull +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * Decodes the GroupContext component bytes from `marmot-current-profile.json` + * — produced by the OpenMLS fork MDK builds on — and checks that each Marmot + * component means what the generator intended and re-encodes byte-identically. + * + * The re-encode half is the point. These bytes live in the signed GroupContext + * and feed the epoch key schedule, so a codec that reads correctly but writes a + * different encoding of the same value would desynchronize the group the first + * time we authored a commit. + */ +class MarmotGroupStateVectorTest { + @Serializable + private data class GroupStateJson( + @SerialName("nostr_group_id") val nostrGroupId: String, + val relays: List, + val name: String, + val description: String, + val admins: List, + @SerialName("epoch1_group_context_dictionary") val dictionary: Map, + ) + + @Serializable + private data class Vector( + @SerialName("group_state") val groupState: GroupStateJson, + ) + + private val vector: Vector = + JsonMapper.jsonInstance.decodeFromString( + TestResourceLoader().loadString("mls/marmot-current-profile.json"), + ) + + private val dictionary: AppDataDictionary by lazy { + AppDataDictionary( + vector.groupState.dictionary.map { (idHex, dataHex) -> + ComponentData(idHex.removePrefix("0x").toInt(16), dataHex.hexToByteArray()) + }, + ) + } + + private val state: MarmotGroupState by lazy { MarmotGroupState.fromDictionary(dictionary) } + + private fun raw(componentId: Int) = assertNotNull(dictionary[componentId], "component missing from the vector") + + @Test + fun theRequiredComponentListIncludesTheLeafOnlyProof() { + assertEquals( + listOf( + AppComponentIds.GROUP_PROFILE_V1, + AppComponentIds.ADMIN_POLICY_V1, + AppComponentIds.NOSTR_ROUTING_V1, + AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2, + AppComponentIds.GROUP_LIFECYCLE_V1, + ).sorted(), + state.requiredComponents, + ) + assertTrue(state.isCurrentProfile) + // 0x8009 is required but leaf-only: required does not imply present. + assertTrue(state.requires(AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2)) + assertNull(dictionary[AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2]) + } + + @Test + fun profileDecodesAndReEncodes() { + val profile = assertNotNull(state.profile) + assertEquals(vector.groupState.name, profile.name) + assertEquals(vector.groupState.description, profile.description) + assertContentEquals(raw(AppComponentIds.GROUP_PROFILE_V1), profile.encode()) + } + + @Test + fun adminPolicyDecodesAndReEncodes() { + val policy = assertNotNull(state.adminPolicy) + assertEquals(vector.groupState.admins, policy.adminHexKeys) + assertContentEquals(raw(AppComponentIds.ADMIN_POLICY_V1), policy.encode()) + + val admin = + vector.groupState.admins + .single() + .hexToByteArray() + assertTrue(policy.contains(admin)) + // Listed is not enough — the account also has to hold a leaf. + assertTrue(policy.isActiveAdmin(admin, listOf(admin))) + assertTrue(!policy.isActiveAdmin(admin, emptyList())) + } + + @Test + fun nostrRoutingDecodesAndReEncodes() { + val routing = assertNotNull(state.routing) + assertEquals(vector.groupState.nostrGroupId, routing.nostrGroupIdHex) + assertEquals(vector.groupState.relays.sorted(), routing.relays) + assertContentEquals(raw(AppComponentIds.NOSTR_ROUTING_V1), routing.encode()) + } + + @Test + fun lifecycleDecodesAsActive() { + assertEquals(GroupLifecycleV1.ACTIVE, state.lifecycle) + assertTrue(!state.isDisbanded) + assertContentEquals(raw(AppComponentIds.GROUP_LIFECYCLE_V1), GroupLifecycleV1.ACTIVE.encode()) + } + + @Test + fun optionalComponentsAreAbsentRatherThanDefaulted() { + // The fixture group carries no image and no retention. Absent is a + // distinct state from "present and disabled", so these must be null. + assertNull(state.image) + assertNull(state.retention) + } + + @Test + fun rebuildingTheDictionaryFromComponentsReproducesTheVector() { + // Round-trips the whole GroupContext dictionary through our builder, + // which is the path a group we create ourselves would take. + val rebuilt = + MarmotGroupState.buildDictionary( + adminPolicy = assertNotNull(state.adminPolicy), + routing = assertNotNull(state.routing), + profile = assertNotNull(state.profile), + lifecycle = GroupLifecycleV1.ACTIVE, + ) + assertContentEquals(dictionary.toBytes(), rebuilt.toBytes()) + assertEquals(state, MarmotGroupState.fromDictionary(rebuilt)) + } + + @Test + fun theAdminKeyIsTheAccountIdentityNotASeparateAuthorizationKey() { + // Same 32-byte x-only key a member carries as its BasicCredential + // identity — this is what makes a multi-device account share one entry. + val policy = assertNotNull(state.adminPolicy) + assertEquals(1, policy.admins.size) + assertEquals(32, policy.admins.single().size) + assertEquals(vector.groupState.admins.single(), policy.admins.single().toHexKey()) + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataUpdateProposalTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataUpdateProposalTest.kt index 28642f9aec..f5e69864d3 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataUpdateProposalTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/components/AppDataUpdateProposalTest.kt @@ -20,7 +20,10 @@ */ package com.vitorpamplona.quartz.marmot.mls.components +import com.vitorpamplona.quartz.marmot.appComponents.AdminPolicyV1 import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds +import com.vitorpamplona.quartz.marmot.appComponents.GroupLifecycleV1 +import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter import com.vitorpamplona.quartz.marmot.mls.group.MlsGroup @@ -50,6 +53,15 @@ import kotlin.test.assertTrue class AppDataUpdateProposalTest { private val creator = "11".repeat(32).hexToByteArray() + // Real component payloads rather than placeholder bytes: these ids have + // decoders now, and every commit reads the dictionary to resolve the admin + // set, so junk under a known id would fail the commit rather than the + // assertion under test. + private val profileA = GroupProfileV1("A", "").encode() + private val profileB = GroupProfileV1("B", "").encode() + private val lifecycleActive = GroupLifecycleV1.ACTIVE.encode() + private val adminPolicy = AdminPolicyV1.of(listOf(creator)).encode() + private fun encode(proposal: Proposal): ByteArray { val writer = TlsWriter() proposal.encodeTls(writer) @@ -107,8 +119,8 @@ class AppDataUpdateProposalTest { val group = MlsGroup.create(creator) assertTrue(group.appDataDictionary().isEmpty) - group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(1)) - group.proposeAppDataUpdate(AppComponentIds.GROUP_LIFECYCLE_V1, byteArrayOf(0)) + group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, profileA) + group.proposeAppDataUpdate(AppComponentIds.GROUP_LIFECYCLE_V1, lifecycleActive) group.commit() val first = group.appDataDictionary() @@ -116,15 +128,15 @@ class AppDataUpdateProposalTest { listOf(AppComponentIds.GROUP_PROFILE_V1, AppComponentIds.GROUP_LIFECYCLE_V1), first.componentIds, ) - assertContentEquals(byteArrayOf(1), first[AppComponentIds.GROUP_PROFILE_V1]) + assertContentEquals(profileA, first[AppComponentIds.GROUP_PROFILE_V1]) // A second update to the same id replaces rather than duplicates. - group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(2)) + group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, profileB) group.commit() val second = group.appDataDictionary() assertEquals(first.componentIds, second.componentIds) - assertContentEquals(byteArrayOf(2), second[AppComponentIds.GROUP_PROFILE_V1]) + assertContentEquals(profileB, second[AppComponentIds.GROUP_PROFILE_V1]) } @Test @@ -133,7 +145,7 @@ class AppDataUpdateProposalTest { // never dropped. An absent extension and an empty one are different // GroupContexts, so dropping it here would fork us from the reference. val group = MlsGroup.create(creator) - group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(1)) + group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, profileA) group.commit() assertTrue(group.appDataDictionary().contains(AppComponentIds.GROUP_PROFILE_V1)) @@ -153,7 +165,7 @@ class AppDataUpdateProposalTest { @Test fun removingAnAbsentComponentIsANoOp() { val group = MlsGroup.create(creator) - group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(1)) + group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, profileA) group.commit() group.proposeAppDataRemoval(AppComponentIds.NOSTR_ROUTING_V1) @@ -170,9 +182,9 @@ class AppDataUpdateProposalTest { // order the two appear in the proposal list. Propose them in the // "wrong" order to prove we do not simply follow list order. val group = MlsGroup.create(creator) - group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(0x42)) + group.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, profileA) group.proposeGroupContextExtensions( - listOf(AppDataDictionary(listOf(ComponentData(AppComponentIds.ADMIN_POLICY_V1, byteArrayOf(9)))).toExtension()), + listOf(AppDataDictionary(listOf(ComponentData(AppComponentIds.ADMIN_POLICY_V1, adminPolicy))).toExtension()), ) group.commit() @@ -182,8 +194,8 @@ class AppDataUpdateProposalTest { dictionary.componentIds, "the update lands on the dictionary the GCE installed, not on the pre-commit one", ) - assertContentEquals(byteArrayOf(9), dictionary[AppComponentIds.ADMIN_POLICY_V1]) - assertContentEquals(byteArrayOf(0x42), dictionary[AppComponentIds.GROUP_PROFILE_V1]) + assertContentEquals(adminPolicy, dictionary[AppComponentIds.ADMIN_POLICY_V1]) + assertContentEquals(profileA, dictionary[AppComponentIds.GROUP_PROFILE_V1]) } @Test @@ -192,14 +204,14 @@ class AppDataUpdateProposalTest { // divergence between them is a group split rather than a rendering bug. val (alice, bob) = twoMemberGroup() - alice.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, byteArrayOf(1, 2, 3)) - alice.proposeAppDataUpdate(AppComponentIds.GROUP_LIFECYCLE_V1, byteArrayOf(0)) + alice.proposeAppDataUpdate(AppComponentIds.GROUP_PROFILE_V1, profileA) + alice.proposeAppDataUpdate(AppComponentIds.GROUP_LIFECYCLE_V1, lifecycleActive) val commit = alice.commit() bob.processFramedCommit(commit.framedCommitBytes) assertEquals(alice.epoch, bob.epoch) assertEquals(alice.appDataDictionary(), bob.appDataDictionary()) - assertContentEquals(byteArrayOf(1, 2, 3), bob.appDataDictionary()[AppComponentIds.GROUP_PROFILE_V1]) + assertContentEquals(profileA, bob.appDataDictionary()[AppComponentIds.GROUP_PROFILE_V1]) alice.proposeAppDataRemoval(AppComponentIds.GROUP_PROFILE_V1) val removal = alice.commit() From a8d11e4c587bd568270b3e575c2575912463805d Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 16:40:18 +0000 Subject: [PATCH 06/79] feat(marmot): current-profile image crypto and Nostr transport corrections MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Finishes Stage 3 and lands most of Stage 4. Image crypto (0x8002). GroupBlossomImageCrypto implements the current-profile scheme, which breaks from MIP-01 in three ways: image_key IS the AEAD key rather than an HKDF seed, image_upload_key IS the Blossom-auth secret rather than a seed, and the AAD is domain-separated and binds the media type where MIP-01 used an empty AAD. That last one closes a real hole — with no AAD a blob could be replayed as a different media type. MarmotMediaType implements the frozen canonicalization; it uses ASCII case folding explicitly, because a locale-aware lowercase would map a dotted capital I to a dotless one and change the AAD bytes. Decryption verifies the content hash before attempting the AEAD: the blob is addressed by hash, so a store returning different bytes is broken or hostile, and finding out through an authentication failure loses that distinction. The MIP-01 scheme stays for groups already on disk and nothing falls back between them, because the component id is the version. Transport. kind:30443 gains a current-profile builder emitting the required tag set and omitting the two tags the spec forbids: encoding (a receiver decodes each field by the rule that defines it, never by a negotiated marker) and relays (discovery is the author's NIP-65 write set). Validation is profile-aware, told apart by the presence of app_components rather than a version tag. KeyPackage relay discovery moves to the NIP-65 write set. publishRelaysFor no longer prefers a kind:10051 list — publishing only where a now-removed list points would make us invisible to a conformant peer, which looks in the NIP-65 set and nowhere else. The legacy list is unioned in rather than substituted, so peers that have not migrated keep finding us. Deduplication now uses SHA-256 over the recovered MLS bytes rather than the Nostr event id, which the transport spec forbids as a dedup key. The old scheme collapsed nothing it was supposed to: relays redeliver, and every transport copy of one MLS message carries its own fresh ephemeral pubkey and therefore a different event id — so cross-relay duplicates always got through, and a hostile republisher could mint unlimited distinct ids for a single message. Dedup necessarily moved after outer decryption, since there is nothing to hash before that, and OutboundGroupEvent now carries the id so a publisher suppresses its own echo by MLS identity. Also enforces the KeyPackage Lifetime bound (present, current, at most 7,261,200 seconds) and validates the embedded account identity proof on inbound current-profile KeyPackages — the app_components tag is only an advertisement, so the decoded LeafNode is what decides. Fifteen new tests. Full quartz jvmTest: 4,557 tests, 0 failures. commons and cli compile. Left for Stage 6: bounded retained-candidate trial decryption for kind:445. Its rule is defined over the retained-state set convergence owns, so it cannot land ahead of it. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/model/AccountMarmotActions.kt | 19 +- .../cli/commands/GroupAddMemberCommand.kt | 6 +- .../amethyst/commons/marmot/MarmotManager.kt | 6 +- quartz/plans/2026-09-08-marmot-spec-resync.md | 39 +++- .../quartz/marmot/MarmotInboundProcessor.kt | 79 ++++--- .../quartz/marmot/MarmotOutboundProcessor.kt | 14 ++ .../appComponents/GroupBlossomImageCrypto.kt | 171 ++++++++++++++ .../marmot/appComponents/MarmotMediaType.kt | 57 +++++ .../mip00KeyPackages/KeyPackageEvent.kt | 60 ++++- .../mip00KeyPackages/KeyPackageFetcher.kt | 38 ++-- .../mip00KeyPackages/KeyPackageUtils.kt | 101 ++++++++- .../mip00KeyPackages/TagArrayBuilderExt.kt | 8 + .../marmot/mip00KeyPackages/TagArrayExt.kt | 3 + .../mip00KeyPackages/tags/AppComponentsTag.kt | 58 +++++ .../GroupBlossomImageCryptoTest.kt | 152 +++++++++++++ .../CurrentProfileKeyPackageEventTest.kt | 209 ++++++++++++++++++ 16 files changed, 947 insertions(+), 73 deletions(-) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupBlossomImageCrypto.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotMediaType.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/tags/AppComponentsTag.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupBlossomImageCryptoTest.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/transport/CurrentProfileKeyPackageEventTest.kt diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt index e45fd03764..001e538f3b 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt @@ -21,6 +21,7 @@ package com.vitorpamplona.amethyst.model import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageEvent +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageFetcher import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl @@ -135,8 +136,11 @@ class AccountMarmotActions( ?.toSet() .orEmpty() val fetchRelays = - com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageFetcher - .fetchRelaysFor(memberKeyPackageRelays, memberOutbox, myOutbox) + KeyPackageFetcher.fetchRelaysFor( + targetOutbox = memberOutbox, + myOutbox = myOutbox, + targetKeyPackageRelays = memberKeyPackageRelays, + ) Log.d("MarmotDbg") { "fetchKeyPackageAndAddMember: querying ${fetchRelays.size} relay(s) for ${memberPubKey.take(8)}… KeyPackage " + @@ -266,11 +270,16 @@ class AccountMarmotActions( /** * Relays where this account publishes kind:30443 KeyPackage events. - * Per MIP-00: prefer kind:10051 KeyPackage Relay List; fall back to NIP-65 outbox. + * + * The NIP-65 write set is the discovery rule now — the spec removed the + * dedicated kind:10051 KeyPackage relay list. The account's own 10051 is + * still unioned in so peers that have not migrated keep finding us. */ fun keyPackagePublishRelays(): Set = - com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageFetcher - .publishRelaysFor(account.keyPackageRelayList.flow.value, account.outboxRelays.flow.value) + KeyPackageFetcher.publishRelaysFor( + myOutbox = account.outboxRelays.flow.value, + legacyKeyPackageRelayList = account.keyPackageRelayList.flow.value, + ) /** * Publish or rotate KeyPackage events. diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupAddMemberCommand.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupAddMemberCommand.kt index 161fe5c844..8732186e47 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupAddMemberCommand.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupAddMemberCommand.kt @@ -83,9 +83,9 @@ object GroupAddMemberCommand { seedRelays = seed, ) - // KeyPackage discovery (MIP-00): prefer the invitee's own - // kind:10051, then their kind:10002 write marker, then our - // bootstrap pool as a last-resort fallback. + // KeyPackage discovery: the invitee's kind:10002 write set is + // the rule now; their kind:10051 is a legacy hint and our + // bootstrap pool a last-resort fallback. val kpRelays = KeyPackageFetcher.fetchRelaysFor( targetKeyPackageRelays = recipient.keyPackage, diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 66283cfa32..79b7459c6b 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -394,7 +394,7 @@ class MarmotManager( // The published kind:445 will echo back from the relay — without this // dedup our own inbound pipeline would try to re-apply a commit whose // epoch we've already merged. - inboundProcessor.markEventProcessed(commitEvent.signedEvent.id) + inboundProcessor.markMessageProcessed(commitEvent.marmotMessageId) val welcomeDelivery = welcomeSender.wrapWelcome( @@ -533,7 +533,7 @@ class MarmotManager( commitBytes = commitResult.framedCommitBytes, exporterKey = commitResult.preCommitExporterSecret, ) - inboundProcessor.markEventProcessed(commitEvent.signedEvent.id) + inboundProcessor.markMessageProcessed(commitEvent.marmotMessageId) return commitEvent } @@ -564,7 +564,7 @@ class MarmotManager( commitBytes = commitResult.framedCommitBytes, exporterKey = commitResult.preCommitExporterSecret, ) - inboundProcessor.markEventProcessed(commitEvent.signedEvent.id) + inboundProcessor.markMessageProcessed(commitEvent.marmotMessageId) return commitEvent } diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index 8d6d149d78..f101800414 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -1,6 +1,6 @@ # Marmot: resync against the adopted spec and current MDK -Status: Stages 0-3 done. Stages 4-7 open. +Status: Stages 0-4 done, plus the Stage 3 image-crypto follow-up. Stages 5-7 open. Sources checked on 2026-09-08: @@ -374,16 +374,35 @@ group state; an admin can; adminship transfers; a phantom admin with no member l rejected; removing the admin policy is rejected). Full `:quartz:jvmTest`: 4,542 tests, 0 failures. `:commons` and `:cli` still compile. -**Still open in this stage** — the encryption side of `0x8002`. The component now carries -`media_type` and exposes the `"marmot-group-image-v1" || 0x00 || media_type` AAD, but -`MarmotGroupImageCipher` still encrypts with an empty AAD and treats `image_key` / -`image_upload_key` as HKDF seeds rather than the keys themselves. Changing that touches the -Android and CLI image paths, so it is its own change rather than a rider on the codecs. +**Image crypto — DONE.** `GroupBlossomImageCrypto` implements the current-profile scheme: +`image_key` IS the AEAD key, `image_upload_key` IS the Blossom-auth secret, and the AAD is +`"marmot-group-image-v1" || 0x00 || canonical_media_type`. `MarmotMediaType` implements the +frozen canonicalization (ASCII case folding only, one alias). The MIP-01 scheme stays in +`MarmotGroupImageEncryption` for groups already on disk, and nothing falls back between them — +the component id is the version. -**Stage 4 — Nostr transport corrections.** -Drop kind 10051 in favor of NIP-65 write relays; drop the `encoding` and `relays` tags from -30443; add `app_components`; MLS-bytes dedup id; bounded retained-candidate trial decryption; -KeyPackage lifetime bound. +**Stage 4 — Nostr transport corrections. MOSTLY DONE.** + +- `KeyPackageEvent.buildCurrentProfile()` emits the current tag set: `mls_extensions` = + `0x0006`, `mls_proposals` adds `0x0008`, an `app_components` tag that must name `0x8009`, + and NO `encoding` or `relays` tags. `KeyPackageUtils.isValid` is profile-aware, told apart by + the presence of `app_components` rather than a version tag; the MIP-era shape stays valid. +- KeyPackage discovery moved to the NIP-65 write set. `publishRelaysFor` no longer *prefers* + a kind:10051 list — publishing only where a removed list points would make us invisible to a + conformant peer, which looks in the NIP-65 set and nowhere else. The 10051 list is unioned + in, never substituted, so unmigrated peers still find us. +- Dedup is now `SHA-256(mls_message_bytes)`, never the Nostr event id. The old scheme + collapsed nothing: each transport copy of one MLS message carries a fresh ephemeral pubkey + and therefore a different event id, and a hostile republisher can mint unlimited ids for one + message. `OutboundGroupEvent` carries the id so self-echo suppression works by MLS identity. +- KeyPackage `Lifetime` is validated: present, current, and spanning at most 7,261,200 s. +- The embedded account identity proof is validated on inbound current-profile KeyPackages — + the `app_components` tag is only an advertisement, so the decoded LeafNode decides. + +**Still open:** bounded retained-candidate trial decryption for kind:445. The rule ("try the +canonical epoch, retained epochs inside the rollback horizon, and any staged-but-unmerged local +commit — and no more") is defined in terms of the retained-state set that convergence owns, so +it lands with Stage 6 rather than ahead of it. **Stage 5 — lifecycle state machine + publish-before-apply.** The six canonical states, the `Leaving` / `Disbanding` gates, and the publish-obligation diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt index 2030217fb4..bdabbb3392 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt @@ -34,6 +34,8 @@ import com.vitorpamplona.quartz.marmot.mls.framing.WireFormat import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.utils.sha256.sha256 import kotlinx.coroutines.sync.Mutex import kotlinx.coroutines.sync.withLock import kotlin.io.encoding.Base64 @@ -168,7 +170,20 @@ class MarmotInboundProcessor( ) { private val commitTracker = CommitOrdering.EpochCommitTracker() private val processedIdsMutex = Mutex() - private val processedEventIds = LinkedHashSet() + + /** + * Marmot message ids (`SHA-256` over the recovered `MLSMessage` bytes) we + * have already applied, newest last. + * + * NOT Nostr event ids. `transports/nostr.md` is explicit: the Nostr event + * id is transport evidence and MUST NOT be the deduplication id. Relays + * redeliver, and a client subscribed to several relays receives the same + * group message repeatedly — those copies share MLS bytes but each carries + * its own fresh ephemeral pubkey and therefore a different event id, so an + * event-id dedup collapses nothing. Worse, a hostile republisher can mint + * unlimited distinct event ids for one MLS message. + */ + private val processedMessageIds = LinkedHashSet() companion object { private const val MAX_PROCESSED_IDS = 10_000 @@ -179,6 +194,16 @@ class MarmotInboundProcessor( fun isWelcomeEvent(event: Event): Boolean = event.kind == WelcomeEvent.KIND } + /** + * `message_id = SHA-256(mls_message_bytes)` — the Marmot message id from + * `foundation/wire-envelopes.md`, computed over the recovered bytes + * without re-encoding so two transport copies of one MLS message agree. + * + * For a commit these are byte-for-byte its `commit_digest`, so convergence + * needs no second hash. + */ + private fun marmotMessageId(mlsBytes: ByteArray): String = sha256(mlsBytes).toHexKey() + /** * Process an inbound GroupEvent (kind:445). * @@ -195,16 +220,6 @@ class MarmotInboundProcessor( * @return the processing result */ suspend fun processGroupEvent(groupEvent: GroupEvent): GroupEventResult { - // Deduplicate already-processed events (thread-safe) - val eventId = groupEvent.id - val alreadyProcessed = - processedIdsMutex.withLock { - eventId in processedEventIds - } - if (alreadyProcessed) { - return GroupEventResult.Duplicate(groupEvent.groupId() ?: "") - } - val groupId = groupEvent.groupId() ?: return GroupEventResult.Error(null, "GroupEvent missing h tag (group ID)") @@ -213,6 +228,7 @@ class MarmotInboundProcessor( return GroupEventResult.Error(groupId, "Not a member of group $groupId") } + var messageId: String? = null val result = try { // Step 1: Outer ChaCha20-Poly1305 decryption @@ -227,13 +243,21 @@ class MarmotInboundProcessor( retainedEpochCount = groupManager.retainedExporterSecrets(groupId).size, ) } else { - // Step 2: Parse the MLS message - val mlsMessage = MlsMessage.decodeTls(TlsReader(mlsBytes)) + // The Marmot message id is defined over the recovered MLS + // bytes, so dedup can only happen AFTER outer decryption — + // there is nothing to hash before that. + messageId = marmotMessageId(mlsBytes) + if (processedIdsMutex.withLock { messageId in processedMessageIds }) { + GroupEventResult.Duplicate(groupId) + } else { + // Step 2: Parse the MLS message + val mlsMessage = MlsMessage.decodeTls(TlsReader(mlsBytes)) - when (mlsMessage.wireFormat) { - WireFormat.PRIVATE_MESSAGE -> processPrivateMessage(groupId, mlsMessage, groupEvent) - WireFormat.PUBLIC_MESSAGE -> processPublicMessage(groupId, mlsMessage, groupEvent) - else -> GroupEventResult.Error(groupId, "Unexpected wire format: ${mlsMessage.wireFormat}") + when (mlsMessage.wireFormat) { + WireFormat.PRIVATE_MESSAGE -> processPrivateMessage(groupId, mlsMessage, groupEvent) + WireFormat.PUBLIC_MESSAGE -> processPublicMessage(groupId, mlsMessage, groupEvent) + else -> GroupEventResult.Error(groupId, "Unexpected wire format: ${mlsMessage.wireFormat}") + } } } } catch (e: Exception) { @@ -247,13 +271,14 @@ class MarmotInboundProcessor( // would cause the retry to hit the Duplicate early-return above and // skip MLS decryption entirely. DoS is already bounded by the // handler's per-group pending buffer. - if (result !is GroupEventResult.UndecryptableOuterLayer) { + val idToRemember = messageId + if (idToRemember != null && result !is GroupEventResult.UndecryptableOuterLayer) { processedIdsMutex.withLock { - processedEventIds.add(eventId) + processedMessageIds.add(idToRemember) // Trim the set if it exceeds the max size - if (processedEventIds.size > MAX_PROCESSED_IDS) { - val iterator = processedEventIds.iterator() - val toRemove = processedEventIds.size - MAX_PROCESSED_IDS + if (processedMessageIds.size > MAX_PROCESSED_IDS) { + val iterator = processedMessageIds.iterator() + val toRemove = processedMessageIds.size - MAX_PROCESSED_IDS repeat(toRemove) { iterator.next() iterator.remove() @@ -372,12 +397,12 @@ class MarmotInboundProcessor( * local epoch. Reprocessing the same commit bytes would otherwise fail * with a confirmation-tag / transcript mismatch. */ - suspend fun markEventProcessed(eventId: HexKey) { + suspend fun markMessageProcessed(marmotMessageId: HexKey) { processedIdsMutex.withLock { - processedEventIds.add(eventId) - if (processedEventIds.size > MAX_PROCESSED_IDS) { - val iterator = processedEventIds.iterator() - val toRemove = processedEventIds.size - MAX_PROCESSED_IDS + processedMessageIds.add(marmotMessageId) + if (processedMessageIds.size > MAX_PROCESSED_IDS) { + val iterator = processedMessageIds.iterator() + val toRemove = processedMessageIds.size - MAX_PROCESSED_IDS repeat(toRemove) { iterator.next() iterator.remove() diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotOutboundProcessor.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotOutboundProcessor.kt index 3f0e276cb4..7d2da13955 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotOutboundProcessor.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotOutboundProcessor.kt @@ -26,10 +26,12 @@ import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEventEncryption import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal import com.vitorpamplona.quartz.nip40Expiration.expiration import com.vitorpamplona.quartz.utils.TimeUtils +import com.vitorpamplona.quartz.utils.sha256.sha256 /** * Result of building an outbound GroupEvent. @@ -37,6 +39,16 @@ import com.vitorpamplona.quartz.utils.TimeUtils data class OutboundGroupEvent( val signedEvent: GroupEvent, val nostrGroupId: HexKey, + /** + * `SHA-256` over the MLS bytes this event carries — the Marmot message id + * from `foundation/wire-envelopes.md`. + * + * Kept alongside the signed event so a publisher can suppress its own echo + * by MLS identity. The Nostr event id cannot serve: relays redeliver, and + * each transport copy of one MLS message carries its own fresh ephemeral + * pubkey and therefore a different event id. + */ + val marmotMessageId: HexKey, ) /** @@ -115,6 +127,7 @@ class MarmotOutboundProcessor( return OutboundGroupEvent( signedEvent = signedEvent, nostrGroupId = nostrGroupId, + marmotMessageId = sha256(mlsCiphertext).toHexKey(), ) } @@ -159,6 +172,7 @@ class MarmotOutboundProcessor( return OutboundGroupEvent( signedEvent = signedEvent, nostrGroupId = nostrGroupId, + marmotMessageId = sha256(commitBytes).toHexKey(), ) } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupBlossomImageCrypto.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupBlossomImageCrypto.kt new file mode 100644 index 0000000000..65e56b86fa --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupBlossomImageCrypto.kt @@ -0,0 +1,171 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.nip01Core.crypto.Nip01Crypto +import com.vitorpamplona.quartz.nip44Encryption.crypto.ChaCha20Poly1305 +import com.vitorpamplona.quartz.utils.RandomInstance +import com.vitorpamplona.quartz.utils.ciphers.NostrCipher +import com.vitorpamplona.quartz.utils.sha256.sha256 + +/** + * The current-profile group-avatar scheme for + * `marmot.group.blossom.image.v1` (`0x8002`). + * + * ```text + * aad = "marmot-group-image-v1" || 0x00 || canonical_media_type + * encrypted_blob = ChaCha20-Poly1305.encrypt(image_key, image_nonce, plaintext, aad) + * image_hash = SHA-256(encrypted_blob) + * ``` + * + * ## Three breaks from the MIP-01 scheme in `MarmotGroupImageEncryption` + * + * 1. `image_key` IS the AEAD key. MIP-01 treated it as an HKDF seed and derived + * the key from it. + * 2. The AAD is domain-separated and binds the media type. MIP-01 used an empty + * AAD, so a blob could be replayed as a different type. + * 3. `image_upload_key` IS the Blossom-auth secret key. MIP-01 derived that + * through HKDF too. + * + * None of these are negotiable at runtime: the component id is the version, so + * a `0x8002` blob is always this scheme and a `marmot_group_data` blob is + * always the old one. The legacy path stays in `MarmotGroupImageEncryption` for + * groups already on disk; nothing falls back between them. + * + * ## The upload key is a shared capability + * + * `image_upload_key` travels inside the MLS-protected component, so every + * current member — and any former member who kept a copy — can sign Blossom + * write or delete authorizations for that blob as long as the server honours the + * key. That is an accepted v1 limitation, not an oversight: the admin gate + * protects group state, and it cannot revoke a capability already distributed. + */ +object GroupBlossomImageCrypto { + const val KEY_LENGTH = GroupBlossomImageV1.KEY_SIZE + const val NONCE_LENGTH = GroupBlossomImageV1.NONCE_SIZE + + /** An encrypted avatar plus the component state that describes it. */ + class Encrypted( + /** The blob to upload to Blossom; its SHA-256 is the content id. */ + val ciphertext: ByteArray, + /** Component state to commit, already carrying the canonical media type. */ + val component: GroupBlossomImageV1, + ) + + /** + * Encrypt [plaintext] under a freshly generated key, nonce and upload + * keypair. + * + * A producer MUST generate all three fresh for every new image and MUST NOT + * reuse a key-nonce pair — ChaCha20-Poly1305 fails catastrophically on + * nonce reuse, and here the "message" is a whole file. + */ + fun encrypt( + plaintext: ByteArray, + mediaType: String, + ): Encrypted { + val canonical = MarmotMediaType.requireCanonical(mediaType) + val imageKey = RandomInstance.bytes(KEY_LENGTH) + val imageNonce = RandomInstance.bytes(NONCE_LENGTH) + val uploadKey = Nip01Crypto.privKeyCreate() + + val ciphertext = + ChaCha20Poly1305.encrypt(plaintext, GroupBlossomImageV1.aad(canonical), imageNonce, imageKey) + + return Encrypted( + ciphertext = ciphertext, + component = + GroupBlossomImageV1( + imageHash = sha256(ciphertext), + imageKey = imageKey, + imageNonce = imageNonce, + imageUploadKey = uploadKey, + mediaType = canonical, + ), + ) + } + + /** + * Decrypt a fetched blob against [component]. + * + * Verifies the content hash first. A fetching client MUST do this before + * decrypting: the blob is addressed by hash, so a store that returns + * different bytes is either broken or hostile, and finding out via an AEAD + * failure loses that distinction. + */ + fun decrypt( + ciphertext: ByteArray, + component: GroupBlossomImageV1, + ): ByteArray { + require(component.hasImage) { "component carries no image" } + require(sha256(ciphertext).contentEquals(component.imageHash)) { + "fetched blob does not match image_hash" + } + val canonical = MarmotMediaType.requireCanonical(component.mediaType!!) + return ChaCha20Poly1305.decrypt( + ciphertext, + GroupBlossomImageV1.aad(canonical), + component.imageNonce!!, + component.imageKey!!, + ) + } + + fun decryptOrNull( + ciphertext: ByteArray, + component: GroupBlossomImageV1, + ): ByteArray? = + try { + decrypt(ciphertext, component) + } catch (_: IllegalArgumentException) { + null + } catch (_: IllegalStateException) { + null + } + + /** + * A [NostrCipher] view for the display path, where the blob cache decrypts + * a fetched URL transparently. + */ + fun cipher(component: GroupBlossomImageV1): NostrCipher = ComponentCipher(component) + + private class ComponentCipher( + private val component: GroupBlossomImageV1, + ) : NostrCipher { + override fun name(): String = "marmot-group-image-v1" + + override fun encrypt(bytesToEncrypt: ByteArray): ByteArray { + require(component.hasImage) { "component carries no image" } + val canonical = MarmotMediaType.requireCanonical(component.mediaType!!) + return ChaCha20Poly1305.encrypt( + bytesToEncrypt, + GroupBlossomImageV1.aad(canonical), + component.imageNonce!!, + component.imageKey!!, + ) + } + + // Qualified so these delegate to the object's two-argument helpers + // rather than recursing into themselves. + override fun decrypt(bytesToDecrypt: ByteArray): ByteArray = GroupBlossomImageCrypto.decrypt(bytesToDecrypt, component) + + override fun decryptOrNull(bytesToDecrypt: ByteArray): ByteArray? = GroupBlossomImageCrypto.decryptOrNull(bytesToDecrypt, component) + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotMediaType.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotMediaType.kt new file mode 100644 index 0000000000..e518438d2a --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotMediaType.kt @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +/** + * The frozen media-type canonicalization from `features/encrypted-media-v1.md`. + * + * Both sender and receiver MUST run this exact algorithm, because the result is + * bound into AEAD associated data and into media key derivation: a receiver that + * canonicalizes differently computes different AAD and the decryption simply + * fails. Adding an alias or a normalization step is a breaking media-version + * change, not an improvement — which is why the alias table below has exactly + * one entry and must stay that way. + */ +object MarmotMediaType { + private const val JPG_ALIAS = "image/jpg" + private const val JPEG = "image/jpeg" + + /** + * Canonicalize [mediaType], or return null when the result is unusable. + * + * 1. take the substring before the first `;`, dropping parameters + * 2. trim leading and trailing ASCII whitespace + * 3. lowercase with ASCII case folding ONLY — never locale-aware, so a + * Turkish locale cannot turn `IMAGE/PNG` into `ımage/png` + * 4. reject an empty result, or one with no `/` + * 5. apply the single canonical alias `image/jpg` -> `image/jpeg` + */ + fun canonicalize(mediaType: String): String? { + val withoutParameters = mediaType.substringBefore(';') + val trimmed = withoutParameters.trim { it == ' ' || it == '\t' || it == '\n' || it == '\r' } + val lowered = trimmed.map { if (it in 'A'..'Z') it + ('a' - 'A') else it }.joinToString("") + if (lowered.isEmpty() || !lowered.contains('/')) return null + return if (lowered == JPG_ALIAS) JPEG else lowered + } + + /** [canonicalize], throwing instead of returning null. */ + fun requireCanonical(mediaType: String): String = requireNotNull(canonicalize(mediaType)) { "not a usable media type: '$mediaType'" } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageEvent.kt index c00378e80f..76b4238187 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageEvent.kt @@ -21,7 +21,9 @@ package com.vitorpamplona.quartz.marmot.mip00KeyPackages import androidx.compose.runtime.Immutable +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.AppComponentsTag import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.EncodingTag +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.MlsProposalsTag import com.vitorpamplona.quartz.nip01Core.core.BaseAddressableEvent import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder @@ -67,9 +69,18 @@ class KeyPackageEvent( /** Supported non-default MLS proposal type IDs */ fun mlsProposals() = tags.mlsProposals() - /** Content encoding format (must be "base64") */ + /** Content encoding format — MIP-era only; forbidden in the current profile. */ fun encoding() = tags.encoding() + /** Marmot app-component ids this KeyPackage advertises (current profile). */ + fun appComponents() = tags.appComponents() + + /** + * True when this event advertises the current profile: it carries an + * `app_components` tag naming `0x8009`. A MIP-era event has no such tag. + */ + fun isCurrentProfile() = appComponents()?.any { it.equals(AppComponentsTag.ACCOUNT_IDENTITY_PROOF_V2, true) } == true + /** Hex-encoded KeyPackageRef for efficient relay queries */ fun keyPackageRef() = tags.keyPackageRef() @@ -85,6 +96,53 @@ class KeyPackageEvent( companion object { const val KIND = 30443 + /** `app_data_dictionary` — the current profile's only required MLS extension. */ + const val CURRENT_PROFILE_EXTENSION = "0x0006" + + /** `app_data_update` — required alongside `self_remove`. */ + const val APP_DATA_UPDATE_PROPOSAL = "0x0008" + + /** + * Build a CURRENT-PROFILE kind:30443 event. + * + * Differences from [build], all of them wire-visible: + * - `mls_extensions` names `app_data_dictionary` (`0x0006`), not + * MIP-01's `marmot_group_data`; last resort is a KeyPackage + * component now, not extension `0x000a`; + * - `mls_proposals` adds `app_data_update` (`0x0008`); + * - an `app_components` tag is required and must include `0x8009`; + * - NO `encoding` tag — the current profile forbids it; + * - NO `relays` tag — discovery uses the author's NIP-65 write set, + * and the spec removed the dedicated KeyPackage relay list. + * + * [dTagSlot] is a stable random 32-byte publication slot id. Replacing + * the KeyPackage in that logical slot MUST reuse the same value; a + * fresh one creates a second concurrently discoverable slot. + */ + fun buildCurrentProfile( + keyPackageBase64: String, + dTagSlot: String, + keyPackageRef: HexKey, + appComponentIds: List, + ciphersuite: String = "0x0001", + clientName: String? = null, + createdAt: Long = TimeUtils.now(), + initializer: TagArrayBuilder.() -> Unit = {}, + ) = eventTemplate(KIND, keyPackageBase64, createdAt) { + dTag(dTagSlot) + mlsProtocolVersion() + mlsCiphersuite(ciphersuite) + mlsExtensions(listOf(CURRENT_PROFILE_EXTENSION)) + mlsProposals(listOf(APP_DATA_UPDATE_PROPOSAL, MlsProposalsTag.SELF_REMOVE)) + appComponents( + (appComponentIds + AppComponentsTag.ACCOUNT_IDENTITY_PROOF_V2).distinct().sorted(), + ) + keyPackageRef(keyPackageRef) + clientName?.let { client(it) } + initializer() + } + + /** MIP-era builder, kept for legacy groups already on disk. */ fun build( keyPackageBase64: String, dTagSlot: String, diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageFetcher.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageFetcher.kt index 19459b09f7..81a07185b4 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageFetcher.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageFetcher.kt @@ -40,22 +40,25 @@ import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl */ object KeyPackageFetcher { /** - * Union of the three relay sets we'd ever want to query for a given user's - * KeyPackage, in priority order of specificity: + * Relays to query for a given user's KeyPackages. * - * 1. target's kind:10051 KeyPackage Relay List (most authoritative) - * 2. target's kind:10002 NIP-65 outbox (where the user publishes in general) - * 3. our own outbox (shared-relay fallback — someone publishing and us - * reading often overlap here) + * The spec's rule is the target's NIP-65 (kind 10002) WRITE-capable set: + * "There is no dedicated KeyPackage relay list." MIP-00's kind 10051 is + * gone, so [targetKeyPackageRelays] is now only a legacy hint — still worth + * querying, because a peer that has not migrated may only be publishing + * there, and querying an extra relay costs nothing and changes no + * validity. Our own outbox stays as a shared-relay fallback. + * + * Order here is presentation only; the caller queries the whole set. */ fun fetchRelaysFor( - targetKeyPackageRelays: Collection, targetOutbox: Collection, myOutbox: Collection, + targetKeyPackageRelays: Collection = emptySet(), ): Set = buildSet { - addAll(targetKeyPackageRelays) addAll(targetOutbox) + addAll(targetKeyPackageRelays) addAll(myOutbox) } @@ -86,16 +89,19 @@ object KeyPackageFetcher { } /** - * Resolve which relays this account should publish its OWN KeyPackage to. + * Resolve which relays this account should publish its OWN KeyPackages to. * - * Per MIP-00, a user's KeyPackages SHOULD live on the relays listed in their - * kind:10051 KeyPackageRelayListEvent. If they haven't published one yet, - * fall back to their NIP-65 outbox — that's where their other write-oriented - * events land and it keeps discovery working in the common "just starting out" - * case. + * The NIP-65 write-capable set, per `transports/nostr.md`: "The account + * publishes its kind 30443 KeyPackage events to its write-capable set." + * + * This deliberately no longer prefers a kind:10051 list. Publishing only + * where a now-removed list points would make us undiscoverable to a + * conformant peer, which looks in the NIP-65 set and nowhere else. + * [legacyKeyPackageRelayList] is unioned in rather than replacing the + * outbox, so a peer still on the MIP-era path keeps finding us. */ fun publishRelaysFor( - keyPackageRelayList: Collection, myOutbox: Collection, - ): Set = if (keyPackageRelayList.isNotEmpty()) keyPackageRelayList.toSet() else myOutbox.toSet() + legacyKeyPackageRelayList: Collection = emptySet(), + ): Set = myOutbox.toSet() + legacyKeyPackageRelayList.toSet() } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageUtils.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageUtils.kt index b1190a7d1d..e5617a900f 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageUtils.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageUtils.kt @@ -20,12 +20,18 @@ */ package com.vitorpamplona.quartz.marmot.mip00KeyPackages +import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds +import com.vitorpamplona.quartz.marmot.appComponents.accountIdentityProof.AccountIdentityProofV2 import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageUtils.isCryptographicallyValid import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageUtils.isValid import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.EncodingTag import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.MlsCiphersuiteTag +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.MlsProposalsTag import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.MlsProtocolVersionTag +import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary +import com.vitorpamplona.quartz.marmot.mls.components.ComponentsList import com.vitorpamplona.quartz.marmot.mls.crypto.MlsCryptoProvider import com.vitorpamplona.quartz.marmot.mls.messages.MlsKeyPackage import com.vitorpamplona.quartz.marmot.mls.tree.Credential @@ -34,6 +40,7 @@ import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl import com.vitorpamplona.quartz.nip01Core.signers.EventTemplate +import com.vitorpamplona.quartz.utils.TimeUtils import kotlin.io.encoding.Base64 import kotlin.io.encoding.ExperimentalEncodingApi @@ -46,6 +53,12 @@ import kotlin.io.encoding.ExperimentalEncodingApi * - Migration: support both kind:443 (legacy) and kind:30443 (addressable) during transition */ object KeyPackageUtils { + /** + * 84 days plus a one-hour clock-skew margin — the maximum span a Marmot + * KeyPackage `Lifetime` may cover (`foundation/key-packages.md`). + */ + const val MAX_LIFETIME_SECONDS = 7_261_200L + /** Legacy non-addressable KeyPackage kind (pre-migration) */ const val LEGACY_KIND = 443 @@ -123,16 +136,31 @@ object KeyPackageUtils { // mls_ciphersuite == "0x0001" if (event.mlsCiphersuite() != MlsCiphersuiteTag.DEFAULT_CIPHERSUITE) return false - // mls_extensions MUST include both 0xf2ee and 0x000a val extensions = event.mlsExtensions()?.map { it.lowercase() }?.toSet() ?: return false - if (!extensions.contains("0xf2ee") || !extensions.contains("0x000a")) return false - - // mls_proposals MUST include 0x000a (SelfRemove) val proposals = event.mlsProposals()?.map { it.lowercase() }?.toSet() ?: return false - if (!proposals.contains("0x000a")) return false - // encoding MUST be base64 and content non-empty - if (event.encoding() != EncodingTag.BASE64) return false + if (event.isCurrentProfile()) { + // Current profile: app_data_dictionary + app_data_update, and an + // app_components tag naming 0x8009. Last resort moved from + // extension 0x000a to a KeyPackage component, so it is NOT + // advertised here any more. + if (!extensions.contains(KeyPackageEvent.CURRENT_PROFILE_EXTENSION)) return false + if (!proposals.contains(KeyPackageEvent.APP_DATA_UPDATE_PROPOSAL)) return false + if (!proposals.contains(MlsProposalsTag.SELF_REMOVE)) return false + // The current profile forbids the encoding tag outright: a + // receiver must decode by the rule that defines each field, never + // by a negotiated marker. + if (event.encoding() != null) return false + // ...and does not repeat relays; discovery is the author's NIP-65 + // write set. + if (event.relays() != null) return false + } else { + // MIP-era shape, kept so groups already on disk stay readable. + if (!extensions.contains("0xf2ee") || !extensions.contains("0x000a")) return false + if (!proposals.contains("0x000a")) return false + if (event.encoding() != EncodingTag.BASE64) return false + } + if (event.content.isEmpty()) return false // i (KeyPackageRef) tag MUST be present @@ -153,7 +181,10 @@ object KeyPackageUtils { * internally. */ @OptIn(ExperimentalEncodingApi::class) - fun isCryptographicallyValid(event: KeyPackageEvent): Boolean { + fun isCryptographicallyValid( + event: KeyPackageEvent, + nowSeconds: Long = TimeUtils.now(), + ): Boolean { if (!isValid(event)) return false val iTag = event.keyPackageRef() ?: return false @@ -178,9 +209,63 @@ object KeyPackageUtils { // KeyPackage signature MUST verify against the LeafNode's signatureKey. if (!keyPackage.verifySignature()) return false + if (!hasValidLifetime(keyPackage, nowSeconds)) return false + + // Current profile: the embedded LeafNode must actually advertise and + // carry the account identity proof. The app_components TAG is only an + // advertisement — a producer can write anything there, so the decoded + // bytes are what decide. + if (event.isCurrentProfile() && !hasValidAccountIdentityProof(keyPackage, credential.identity)) { + return false + } + return true } + /** + * The MLS `Lifetime` extension is part of KeyPackage validity + * (`foundation/key-packages.md`). + * + * A candidate MUST carry one, MUST be current at validation time, and MUST + * span at most [MAX_LIFETIME_SECONDS]. A last-resort KeyPackage does NOT + * relax the span limit — reuse is about the init key, not about staying + * valid forever. + */ + fun hasValidLifetime( + keyPackage: MlsKeyPackage, + nowSeconds: Long = TimeUtils.now(), + ): Boolean { + val lifetime = keyPackage.leafNode.lifetime ?: return false + if (lifetime.notBefore == 0L && lifetime.notAfter == 0L) return false + if (nowSeconds < lifetime.notBefore) return false + if (nowSeconds > lifetime.notAfter) return false + val span = lifetime.notAfter - lifetime.notBefore + if (span <= 0L || span > MAX_LIFETIME_SECONDS) return false + return true + } + + /** + * Validate the LeafNode's `marmot.member.account-identity-proof.v2` + * component against that same leaf's credential and signature key. + */ + fun hasValidAccountIdentityProof( + keyPackage: MlsKeyPackage, + credentialIdentity: ByteArray, + ): Boolean { + val dictionary = AppDataDictionary.fromExtensions(keyPackage.leafNode.extensions) ?: return false + + val supported = dictionary[ComponentsList.APP_COMPONENTS_ID]?.let { ComponentsList.decode(it) } ?: return false + if (!supported.contains(AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2)) return false + + val ciphersuite = MlsCiphersuite.fromCode(MlsCiphersuiteTag.DEFAULT_CIPHERSUITE) ?: return false + return AccountIdentityProofV2.isValid( + componentData = dictionary[AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2], + credentialIdentity = credentialIdentity, + mlsSignatureKey = keyPackage.leafNode.signatureKey, + ciphersuite = ciphersuite, + ) + } + private fun Char.isHexChar(): Boolean = this in '0'..'9' || this in 'a'..'f' || this in 'A'..'F' /** diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/TagArrayBuilderExt.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/TagArrayBuilderExt.kt index 6f7de3a7eb..de784f64bc 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/TagArrayBuilderExt.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/TagArrayBuilderExt.kt @@ -20,6 +20,7 @@ */ package com.vitorpamplona.quartz.marmot.mip00KeyPackages +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.AppComponentsTag import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.ClientTag import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.EncodingTag import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.KeyPackageRefTag @@ -40,6 +41,13 @@ fun TagArrayBuilder.mlsExtensions(extensionIds: List) = fun TagArrayBuilder.mlsProposals(proposalIds: List) = addUnique(MlsProposalsTag.assemble(proposalIds)) +fun TagArrayBuilder.appComponents(componentIds: List) = addUnique(AppComponentsTag.assemble(componentIds)) + +/** + * MIP-era only. The current profile forbids this tag: a sender MUST NOT add + * one and a receiver MUST NOT switch decoders on it, because each field is + * decoded by the rule that defines it rather than by a negotiated marker. + */ fun TagArrayBuilder.encoding() = addUnique(EncodingTag.assemble()) fun TagArrayBuilder.keyPackageRef(ref: HexKey) = addUnique(KeyPackageRefTag.assemble(ref)) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/TagArrayExt.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/TagArrayExt.kt index a754120e05..7f6efb9e2c 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/TagArrayExt.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/TagArrayExt.kt @@ -20,6 +20,7 @@ */ package com.vitorpamplona.quartz.marmot.mip00KeyPackages +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.AppComponentsTag import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.ClientTag import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.EncodingTag import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.KeyPackageRefTag @@ -45,3 +46,5 @@ fun TagArray.keyPackageRef() = firstNotNullOfOrNull(KeyPackageRefTag::parse) fun TagArray.keyPackageRelays() = firstNotNullOfOrNull(RelaysTag::parse) fun TagArray.clientName() = firstNotNullOfOrNull(ClientTag::parse) + +fun TagArray.appComponents() = firstNotNullOfOrNull(AppComponentsTag::parse) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/tags/AppComponentsTag.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/tags/AppComponentsTag.kt new file mode 100644 index 0000000000..b94de52f08 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/tags/AppComponentsTag.kt @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags + +import com.vitorpamplona.quartz.nip01Core.core.has +import com.vitorpamplona.quartz.utils.ensure + +/** + * `app_components` — the Marmot app-component ids a current-profile KeyPackage + * advertises support for (`transports/nostr.md`, "KeyPackage publication"). + * + * ```text + * ["app_components", "0x0001", "0x8009"] + * ``` + * + * An id-list tag: exactly one tag, values following the name in a single array, + * each `0x` plus four lowercase hex digits. A producer MUST NOT split one list + * across repeated tags, and a consumer MUST reject an event carrying more than + * one — reading the first and ignoring the rest is how a second tag smuggles in + * an advertisement nobody validated. + * + * The tag MUST include `0x8009`. It is only an advertisement and a fetch + * filter, though: a receiver still has to validate the decoded KeyPackage + * LeafNode's own support list and proof data. A tag can claim anything. + */ +class AppComponentsTag { + companion object { + const val TAG_NAME = "app_components" + + /** `marmot.member.account-identity-proof.v2` — mandatory in this tag. */ + const val ACCOUNT_IDENTITY_PROOF_V2 = "0x8009" + + fun parse(tag: Array): List? { + ensure(tag.has(1) && tag[0] == TAG_NAME) { return null } + return tag.drop(1).filter { it.isNotEmpty() } + } + + fun assemble(componentIds: List) = arrayOf(TAG_NAME, *componentIds.toTypedArray()) + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupBlossomImageCryptoTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupBlossomImageCryptoTest.kt new file mode 100644 index 0000000000..507f1e4367 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupBlossomImageCryptoTest.kt @@ -0,0 +1,152 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.nip44Encryption.crypto.ChaCha20Poly1305 +import com.vitorpamplona.quartz.utils.sha256.sha256 +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * The `marmot.group.blossom.image.v1` encryption scheme. + * + * The spec says fixed vectors ship later with the conformance fixtures, so + * these pin the three properties that differ from the MIP-01 scheme instead of + * asserting against published bytes. + */ +class GroupBlossomImageCryptoTest { + private val plaintext = ByteArray(512) { (it * 7).toByte() } + + @Test + fun roundTripsAndPopulatesTheComponent() { + val encrypted = GroupBlossomImageCrypto.encrypt(plaintext, "image/png") + val component = encrypted.component + + assertTrue(component.hasImage) + assertEquals("image/png", component.mediaType) + assertEquals(32, component.imageKey!!.size) + assertEquals(12, component.imageNonce!!.size) + assertEquals(32, component.imageUploadKey!!.size) + assertContentEquals(sha256(encrypted.ciphertext), component.imageHash) + + assertContentEquals(plaintext, GroupBlossomImageCrypto.decrypt(encrypted.ciphertext, component)) + // Component state survives a wire round trip with the blob still readable. + val reparsed = GroupBlossomImageV1.decode(component.encode()) + assertContentEquals(plaintext, GroupBlossomImageCrypto.decrypt(encrypted.ciphertext, reparsed)) + } + + @Test + fun imageKeyIsTheAeadKeyNotAnHkdfSeed() { + // MIP-01 derived the AEAD key from image_key. Here it IS the key, so + // decrypting with it directly must work — that is the whole break. + val encrypted = GroupBlossomImageCrypto.encrypt(plaintext, "image/png") + val component = encrypted.component + val direct = + ChaCha20Poly1305.decrypt( + encrypted.ciphertext, + GroupBlossomImageV1.aad("image/png"), + component.imageNonce!!, + component.imageKey!!, + ) + assertContentEquals(plaintext, direct) + } + + @Test + fun theMediaTypeIsBoundIntoTheAead() { + // MIP-01 used an empty AAD, so a blob could be replayed as a different + // type. Claiming the wrong type must now fail authentication. + val encrypted = GroupBlossomImageCrypto.encrypt(plaintext, "image/png") + val lying = encrypted.component.copy(mediaType = "image/gif") + + assertNull(GroupBlossomImageCrypto.decryptOrNull(encrypted.ciphertext, lying)) + assertFailsWith { GroupBlossomImageCrypto.decrypt(encrypted.ciphertext, lying) } + } + + @Test + fun anEmptyAadDoesNotAuthenticate() { + // Guards against silently regressing to the MIP-01 AAD. + val encrypted = GroupBlossomImageCrypto.encrypt(plaintext, "image/png") + val component = encrypted.component + assertFailsWith { + ChaCha20Poly1305.decrypt( + encrypted.ciphertext, + ByteArray(0), + component.imageNonce!!, + component.imageKey!!, + ) + } + } + + @Test + fun theContentHashIsCheckedBeforeDecrypting() { + // Addressed by hash: a store returning different bytes is broken or + // hostile, and finding out through an AEAD failure loses that + // distinction. + val encrypted = GroupBlossomImageCrypto.encrypt(plaintext, "image/png") + val tampered = encrypted.ciphertext.copyOf().also { it[0] = (it[0] + 1).toByte() } + + val failure = + assertFailsWith { + GroupBlossomImageCrypto.decrypt(tampered, encrypted.component) + } + assertTrue(failure.message!!.contains("image_hash")) + } + + @Test + fun everyImageGetsFreshKeyMaterial() { + // Nonce reuse under one key is catastrophic for ChaCha20-Poly1305, and + // here each "message" is a whole file. + val a = GroupBlossomImageCrypto.encrypt(plaintext, "image/png").component + val b = GroupBlossomImageCrypto.encrypt(plaintext, "image/png").component + assertTrue(!a.imageKey.contentEquals(b.imageKey)) + assertTrue(!a.imageNonce.contentEquals(b.imageNonce)) + assertTrue(!a.imageUploadKey.contentEquals(b.imageUploadKey)) + } + + @Test + fun senderAndReceiverCanonicalizeTheMediaTypeIdentically() { + // The canonical form is what gets stored and bound, so a sender that + // passes "IMAGE/JPG; charset=binary" and a receiver reading back + // "image/jpeg" must agree. + val encrypted = GroupBlossomImageCrypto.encrypt(plaintext, "IMAGE/JPG; charset=binary") + assertEquals("image/jpeg", encrypted.component.mediaType) + assertContentEquals(plaintext, GroupBlossomImageCrypto.decrypt(encrypted.ciphertext, encrypted.component)) + } + + @Test + fun mediaTypeCanonicalizationFollowsTheFrozenAlgorithm() { + assertEquals("image/png", MarmotMediaType.canonicalize(" IMAGE/PNG ; q=1 ")) + assertEquals("image/jpeg", MarmotMediaType.canonicalize("image/jpg")) + assertEquals("image/jpeg", MarmotMediaType.canonicalize("IMAGE/JPG")) + assertEquals("image/jpeg", MarmotMediaType.canonicalize("image/jpeg")) + assertNull(MarmotMediaType.canonicalize("")) + assertNull(MarmotMediaType.canonicalize(" ")) + assertNull(MarmotMediaType.canonicalize("png"), "a type with no '/' is unusable") + assertNull(MarmotMediaType.canonicalize("; charset=x")) + // ASCII case folding only: a locale-aware lowercase would map the + // dotted capital I to a dotless one and change the bytes. + assertEquals("image/iİ", MarmotMediaType.canonicalize("IMAGE/Iİ")) + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/transport/CurrentProfileKeyPackageEventTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/transport/CurrentProfileKeyPackageEventTest.kt new file mode 100644 index 0000000000..2d18dbd279 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/transport/CurrentProfileKeyPackageEventTest.kt @@ -0,0 +1,209 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.transport + +import com.vitorpamplona.quartz.TestResourceLoader +import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageEvent +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageFetcher +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageUtils +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.framing.MlsMessage +import com.vitorpamplona.quartz.marmot.mls.messages.MlsKeyPackage +import com.vitorpamplona.quartz.marmot.mls.tree.Credential +import com.vitorpamplona.quartz.nip01Core.core.JsonMapper +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlinx.serialization.SerialName +import kotlinx.serialization.Serializable +import kotlin.io.encoding.Base64 +import kotlin.io.encoding.ExperimentalEncodingApi +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFalse +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * The kind:30443 shape the current profile requires, and the relay-discovery + * rule that replaced MIP-00's kind:10051 list. + */ +@OptIn(ExperimentalEncodingApi::class) +class CurrentProfileKeyPackageEventTest { + @Serializable + private data class Joiner( + @SerialName("key_package") val keyPackage: String, + ) + + @Serializable + private data class Vector( + val joiner: Joiner, + ) + + private val vector: Vector = + JsonMapper.jsonInstance.decodeFromString( + TestResourceLoader().loadString("mls/marmot-current-profile.json"), + ) + + /** The MDK-shaped KeyPackage, re-wrapped as the base64 a kind:30443 carries. */ + private val keyPackageBase64: String = Base64.encode(vector.joiner.keyPackage.hexToByteArray()) + + private val decoded: MlsKeyPackage by lazy { + val message = MlsMessage.decodeTls(TlsReader(vector.joiner.keyPackage.hexToByteArray())) + MlsKeyPackage.decodeTls(TlsReader(message.payload)) + } + + private fun currentProfileEvent(): KeyPackageEvent = + runBlocking { + val identity = (decoded.leafNode.credential as Credential.Basic).identity + // The event must be authored by the credential identity, so sign + // with that exact account key. + val signer = NostrSignerInternal(KeyPair(privKey = identity.copyOf().also { it[31] = it[31] })) + signer.sign( + KeyPackageEvent.buildCurrentProfile( + keyPackageBase64 = keyPackageBase64, + dTagSlot = "ab".repeat(32), + keyPackageRef = "cd".repeat(32), + appComponentIds = listOf("0x0001", "0x8001"), + ), + ) + } + + @Test + fun theCurrentProfileTagSetOmitsEncodingAndRelays() { + val event = currentProfileEvent() + + assertEquals(listOf(KeyPackageEvent.CURRENT_PROFILE_EXTENSION), event.mlsExtensions()) + assertTrue(event.mlsProposals()!!.contains(KeyPackageEvent.APP_DATA_UPDATE_PROPOSAL)) + assertTrue(event.mlsProposals()!!.contains("0x000a")) + + // The current profile forbids both. A receiver decodes each field by + // the rule that defines it, and KeyPackage events do not repeat the + // author's relays because discovery is their NIP-65 write set. + assertNull(event.encoding(), "the encoding tag is forbidden") + assertNull(event.relays(), "kind 30443 does not repeat relays") + + val components = event.appComponents()!! + assertTrue(components.contains("0x8009"), "app_components MUST name 0x8009") + assertEquals(components.sorted(), components, "id-list values are emitted sorted") + assertTrue(event.isCurrentProfile()) + } + + @Test + fun theLegacyBuilderStillProducesTheMipEraShape() { + // Groups already on disk keep working; the two shapes are told apart + // by the presence of app_components, not by a version tag. + val legacy = + runBlocking { + NostrSignerInternal(KeyPair()).sign( + KeyPackageEvent.build( + keyPackageBase64 = keyPackageBase64, + dTagSlot = "ab".repeat(32), + keyPackageRef = "cd".repeat(32), + relays = listOf(RelayUrlNormalizer.normalizeOrNull("wss://relay.example")!!), + ), + ) + } + assertFalse(legacy.isCurrentProfile()) + assertEquals("base64", legacy.encoding()) + assertTrue(legacy.mlsExtensions()!!.contains("0xf2ee")) + assertTrue(KeyPackageUtils.isValid(legacy), "the MIP-era shape stays valid") + } + + @Test + fun aCurrentProfileEventCarryingAnEncodingTagIsRejected() { + val event = + runBlocking { + NostrSignerInternal(KeyPair()).sign( + KeyPackageEvent.buildCurrentProfile( + keyPackageBase64 = keyPackageBase64, + dTagSlot = "ab".repeat(32), + keyPackageRef = "cd".repeat(32), + appComponentIds = listOf("0x0001"), + ) { + // Smuggle in the forbidden tag. + addUnique(arrayOf("encoding", "base64")) + }, + ) + } + assertFalse(KeyPackageUtils.isValid(event)) + } + + @Test + fun theKeyPackageLifetimeBoundIsEnforced() { + val lifetime = decoded.leafNode.lifetime!! + val midpoint = (lifetime.notBefore + lifetime.notAfter) / 2 + + assertTrue(KeyPackageUtils.hasValidLifetime(decoded, midpoint)) + assertFalse(KeyPackageUtils.hasValidLifetime(decoded, lifetime.notBefore - 1)) + assertFalse(KeyPackageUtils.hasValidLifetime(decoded, lifetime.notAfter + 1)) + assertTrue( + lifetime.notAfter - lifetime.notBefore <= KeyPackageUtils.MAX_LIFETIME_SECONDS, + "the reference generator stays inside the 84-day + 1h bound", + ) + } + + @Test + fun theEmbeddedProofIsValidatedNotJustAdvertised() { + // The app_components TAG is only an advertisement; a producer can + // write anything there. The decoded LeafNode is what decides. + val identity = (decoded.leafNode.credential as Credential.Basic).identity + assertTrue(KeyPackageUtils.hasValidAccountIdentityProof(decoded, identity)) + assertFalse( + KeyPackageUtils.hasValidAccountIdentityProof(decoded, ByteArray(32) { 0x01 }), + "a proof must not validate against a different account", + ) + } + + @Test + fun keyPackageDiscoveryUsesTheNip65WriteSet() { + val outbox = setOf(RelayUrlNormalizer.normalizeOrNull("wss://outbox.example")!!) + val legacy = setOf(RelayUrlNormalizer.normalizeOrNull("wss://legacy-10051.example")!!) + + // Publishing must reach the NIP-65 write set: a conformant peer looks + // there and nowhere else. The legacy list is unioned in, never + // substituted for it. + assertTrue(KeyPackageFetcher.publishRelaysFor(myOutbox = outbox).containsAll(outbox)) + val both = KeyPackageFetcher.publishRelaysFor(myOutbox = outbox, legacyKeyPackageRelayList = legacy) + assertTrue(both.containsAll(outbox)) + assertTrue(both.containsAll(legacy)) + + val fetch = + KeyPackageFetcher.fetchRelaysFor( + targetOutbox = outbox, + myOutbox = emptySet(), + targetKeyPackageRelays = legacy, + ) + assertTrue(fetch.containsAll(outbox)) + } + + @Test + fun componentIdsRenderAsFourLowercaseHexDigits() { + // The id-list tag values are compared as exact strings, so the + // rendering is part of the wire format. + assertEquals("0x0001", AppComponentIds.toHex(AppComponentIds.APP_COMPONENTS)) + assertEquals("0x8009", AppComponentIds.toHex(AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2)) + assertEquals("0x800c", AppComponentIds.toHex(AppComponentIds.GROUP_LIFECYCLE_V1)) + } +} From 486e93f873feb935268efc413c7c4e85526e528e Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 16:50:47 +0000 Subject: [PATCH 07/79] feat(marmot): add the lifecycle state machine and convergence branch selection MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Stages 5 and 6, protocol cores. The lifecycle model: six canonical states with their legal-transition table, four derived convergence statuses with the legal-combination table, and the durable local gates (Leaving, Disbanding, realized removal) that restrict outbound work without being lifecycle states. Two table entries are load-bearing rather than bookkeeping, and both have tests. There is no Merging -> Recovering edge: a competing branch observed while applying our own confirmed commit is retained, the merge completes to Stable, and admission into a bounded pass then triggers Stable -> Recovering. Diverting mid-merge would leave a half-applied epoch. And Disbanded has no outgoing edge at all — no later branch supersedes a terminalized disband. Branch selection replaces the superseded MIP-03 rule, which broke a same-epoch tie on the outer Nostr created_at and then the event id. Both are transport evidence: timestamps are chosen by senders, and each transport copy of one MLS message carries a different event id. The replacement reads only authenticated values. Three details that decide whether two clients agree: Byte ordering is unsigned. Account keys and SHA-256 digests are uniformly distributed, so a signed comparison inverts roughly half of all final ties, and two implementations would disagree that often. raw_commit_depth gets no comparison step of its own — it is already inside effective_commit_depth, so once effective depth and quorum status tie, a further raw-depth comparison is necessarily tied too. A widely circulated write-up of this algorithm lists raw depth as a step; the spec does not, and there is a test that fails if it is added. Witnesses count distinct sender ACCOUNTS per branch epoch, capped at the quorum size, and epochs at or before fork_epoch do not count. Counting by account stops a multi-device member counting twice; counting distinct senders stops one member inflating a branch by sending a lot; the per-epoch cap stops one busy epoch outweighing several quiet ones. The policy constructor enforces max_witness_override_depth <= max_rewind_commits, because without that bound app-payload traffic could push a branch past the rollback horizon and beat an arbitrarily longer valid commit branch. Twenty-five tests, including the worked example: a three-commit branch with witness quorum ties a four-commit branch without one at effective depth four and then wins on quorum, while a five-commit branch beats both because the boost is capped at one. Selection is asserted invariant under input order, reversal, shuffling and every rotation. Full quartz jvmTest: 4,582 tests, 0 failures. Still open in these stages: the bounded pass scheduler and the candidate-graph builder that replays MLS bytes against retained states, plus wiring the lifecycle states into MlsGroup so they gate anything. CommitOrdering's transport-metadata tiebreak therefore still stands — deleting it is only safe once something replaces it end to end, and selection alone does not. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- quartz/plans/2026-09-08-marmot-spec-resync.md | 45 ++- quartz/plans/README.md | 2 +- .../marmot/protocolCore/BranchSelector.kt | 126 ++++++++ .../marmot/protocolCore/CandidateBranch.kt | 154 ++++++++++ .../protocolCore/ConvergenceDisposition.kt | 66 ++++ .../marmot/protocolCore/ConvergencePolicy.kt | 77 +++++ .../protocolCore/GroupLifecycleState.kt | 213 +++++++++++++ .../marmot/protocolCore/BranchSelectorTest.kt | 281 ++++++++++++++++++ .../protocolCore/GroupLifecycleStateTest.kt | 143 +++++++++ 9 files changed, 1099 insertions(+), 8 deletions(-) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/BranchSelector.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateBranch.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergenceDisposition.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergencePolicy.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/GroupLifecycleState.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/BranchSelectorTest.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/GroupLifecycleStateTest.kt diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index f101800414..df64ecfd84 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -1,6 +1,7 @@ # Marmot: resync against the adopted spec and current MDK -Status: Stages 0-4 done, plus the Stage 3 image-crypto follow-up. Stages 5-7 open. +Status: Stages 0-4 done. Stages 5-6 have their protocol cores landed; the pass scheduler, +candidate-graph replay and Stage 7 remain. Sources checked on 2026-09-08: @@ -404,13 +405,43 @@ canonical epoch, retained epochs inside the rollback horizon, and any staged-but commit — and no more") is defined in terms of the retained-state set that convergence owns, so it lands with Stage 6 rather than ahead of it. -**Stage 5 — lifecycle state machine + publish-before-apply.** -The six canonical states, the `Leaving` / `Disbanding` gates, and the publish-obligation -record (bytes + recipient scope + prior state + pending state) surviving restart. +**Stage 5 — lifecycle state machine. CORE DONE.** -**Stage 6 — convergence engine.** -Bounded passes, candidate graph, eligibility, witnesses, six-step selection, dispositions and -withdrawal. Delete `CommitOrdering`'s transport-metadata tiebreak at this point, not before. +`GroupLifecycleState` (the six canonical states with their legal-transition table), +`ConvergenceStatus` (the four derived statuses with the legal-combination table), and +`LocalOutboundGate` for `Leaving` / `Disbanding` / realized-removal. + +Two table entries are load-bearing and tested as such: there is NO `Merging -> Recovering` +edge — a competing branch seen mid-merge is retained, the merge finishes to `Stable`, and the +bounded pass then triggers `Stable -> Recovering`, because diverting mid-merge would leave a +half-applied epoch — and `Disbanded` has no outgoing edge at all. + +**Still open:** the publish-obligation record (bytes + recipient scope + prior state + pending +state) surviving restart, and wiring these states into `MlsGroup`/`MarmotManager` so they +actually gate anything. Today they are a correct model with no enforcement behind them. + +**Stage 6 — convergence engine. SELECTION DONE.** + +`ConvergencePolicy` (the v1 constants, with the `max_witness_override_depth <= +max_rewind_commits` bound enforced in the constructor), `CandidateBranch` (fork/tip epochs, +raw depth, tip priority/committer/digest, per-epoch witnesses), `BranchSelector` (the six-step +comparison), and the `ConvergenceDisposition` / `ConvergenceCategory` vocabularies. + +Things worth knowing about the implementation: + +- Byte ordering is UNSIGNED. Account keys and digests are uniformly distributed, so a signed + comparison would invert about half of all final ties — and two clients would then disagree + that often. +- `raw_commit_depth` has no comparison step of its own. It is already inside + `effective_commit_depth`. The widely circulated write-up of this algorithm lists it as a + step; the spec explicitly does not, and there is a test that fails if it is added. +- Witnesses count DISTINCT sender accounts per branch epoch, capped at the quorum size, and + epochs at or before `fork_epoch` do not count at all. + +**Still open:** the bounded pass scheduler (quiescence/deadline timers, the frozen batch, +`pass_base_epoch`) and the candidate-graph builder that replays MLS bytes against retained +states. `CommitOrdering`'s transport-metadata tiebreak therefore still stands — it is only safe +to delete once something replaces it end to end, and selection alone does not. **Stage 7 — durability/restart conformance, app payload kinds (1009/1210), encrypted-media v2, push owner proof.** diff --git a/quartz/plans/README.md b/quartz/plans/README.md index 4626f6cbd2..da40e77b17 100644 --- a/quartz/plans/README.md +++ b/quartz/plans/README.md @@ -10,7 +10,7 @@ _Audited 2026-09-08. 12 plans: 7 shipped (archived), 0 in-progress, 4 queued, 1 | [2026-07-03-incremental-negentropy-storage.md](2026-07-03-incremental-negentropy-storage.md) | Always-current (created_at, id) index so cold NEG-OPENs stop paying a full scan + seal (~340 ms at 50k vs strfry's ~21 ms). | | [2026-07-04-small-req-floor.md](2026-07-04-small-req-floor.md) | Small-REQ dispatch floor: decomposed, inline fast path tried and reverted (no wire-level win); floor is transport-side. | | [2026-08-13-gpu-pow-mining.md](2026-08-13-gpu-pow-mining.md) | GPU NIP-13 mining declined (ARMv8 has SHA-256 in silicon, mobile GPUs do not). Midstate is ~3x on JVM targets; Android hinges on Conscrypt per-digest JNI cost, still unmeasured. created_at refresh while mining shipped. | -| [2026-09-08-marmot-spec-resync.md](2026-09-08-marmot-spec-resync.md) | Marmot moved off the MIP-era spec (2026-07-02): group state split into `app_data_dictionary` components, account identity proof v2, and a convergence engine. Current MDK rejects our groups outright. Gap analysis + 8-stage plan; Stages 0-3 done (mdk interop reference, app_data_dictionary + AppDataUpdate, account-identity-proof v2, the six group components + current-profile authorization). | +| [2026-09-08-marmot-spec-resync.md](2026-09-08-marmot-spec-resync.md) | Marmot moved off the MIP-era spec (2026-07-02): group state split into `app_data_dictionary` components, account identity proof v2, and a convergence engine. Current MDK rejects our groups outright. Gap analysis + 8-stage plan; Stages 0-4 done (mdk interop reference, app_data_dictionary, identity proof v2, the six group components, transport corrections); lifecycle + branch selection landed. | ## Archived (shipped) | Plan | Summary | diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/BranchSelector.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/BranchSelector.kt new file mode 100644 index 0000000000..260a7aaf49 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/BranchSelector.kt @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +/** + * Branch selection (`protocol-core/convergence.md`, "Branch selection"). + * + * Two clients that start from the same retained anchor, use the same policy, + * and resolve the same frozen input batch MUST select the same branch — + * regardless of transport arrival order, local scheduling, or device speed. + * This object is where that determinism lives, so everything it reads is + * authenticated and nothing it reads is transport metadata. + * + * This REPLACES the superseded MIP-03 rule, which broke a same-epoch tie on the + * outer Nostr `created_at` and then the Nostr event id. Both are transport + * evidence: timestamps are chosen by senders, and each transport copy of one + * MLS message carries a different event id. + */ +object BranchSelector { + /** + * Compare two eligible branches, most-preferred first. + * + * The order is exactly: + * + * 1. higher `effective_commit_depth` + * 2. witness quorum beats no quorum + * 3. higher `app_witness_score` + * 4. lower `tip_priority` (privileged before ordinary) + * 5. lower `tip_committer` + * 6. lower `tip_digest` + * + * `raw_commit_depth` has NO step of its own: it is already inside + * `effective_commit_depth`, so once effective depth and quorum status are + * both tied a further raw-depth comparison is necessarily tied too. (A + * widely circulated write-up of this algorithm lists raw depth as step 2 — + * it is not in the spec, and adding it would change nothing except to make + * two implementations disagree about where the comparison ended.) + */ + fun comparator(policy: ConvergencePolicy): Comparator = + Comparator { a, b -> + var result = b.effectiveCommitDepth(policy).compareTo(a.effectiveCommitDepth(policy)) + if (result != 0) return@Comparator result + + result = quorumRank(b, policy).compareTo(quorumRank(a, policy)) + if (result != 0) return@Comparator result + + result = b.appWitnessScore(policy).compareTo(a.appWitnessScore(policy)) + if (result != 0) return@Comparator result + + result = a.tipPriority.order.compareTo(b.tipPriority.order) + if (result != 0) return@Comparator result + + result = compareUnsigned(a.tipCommitter, b.tipCommitter) + if (result != 0) return@Comparator result + + compareUnsigned(a.tipDigest, b.tipDigest) + } + + /** + * The canonical branch among [branches], or null when none is eligible. + * + * [passBaseEpoch] is the pass's frozen base; branches whose fork lies + * outside the rollback horizon MUST NOT be selected. + */ + fun select( + branches: Collection, + passBaseEpoch: Long, + policy: ConvergencePolicy = ConvergencePolicy.V1, + ): CandidateBranch? = + branches + .filter { it.isEligible(passBaseEpoch, policy) } + .minWithOrNull(comparator(policy)) + + /** [branches] ordered most-preferred first, eligible ones only. */ + fun rank( + branches: Collection, + passBaseEpoch: Long, + policy: ConvergencePolicy = ConvergencePolicy.V1, + ): List = + branches + .filter { it.isEligible(passBaseEpoch, policy) } + .sortedWith(comparator(policy)) + + private fun quorumRank( + branch: CandidateBranch, + policy: ConvergencePolicy, + ): Int = if (branch.witnessQuorumMet(policy)) 1 else 0 + + /** + * Lexicographic order over raw bytes, compared UNSIGNED. + * + * Both a 32-byte x-only account key and a SHA-256 digest are uniformly + * distributed, so about half of all comparisons involve a byte above 0x7f. + * A signed comparison would invert those and two implementations would + * disagree about the winner roughly half the time a tie reached this far. + */ + private fun compareUnsigned( + a: ByteArray, + b: ByteArray, + ): Int { + val common = minOf(a.size, b.size) + for (i in 0 until common) { + val diff = (a[i].toInt() and 0xFF) - (b[i].toInt() and 0xFF) + if (diff != 0) return diff + } + return a.size - b.size + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateBranch.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateBranch.kt new file mode 100644 index 0000000000..878115d62c --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateBranch.kt @@ -0,0 +1,154 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey + +/** + * The authorization class of a branch's tip Commit + * (`protocol-core/convergence.md`, "Candidate branches"). + * + * A Commit is [PRIVILEGED] exactly when its applicable Marmot authorization + * rule REQUIRES an active admin in the candidate parent state, and [ORDINARY] + * when the rule permits a non-admin committer. This follows the authorization + * rule, not the operation's apparent importance: a component change whose + * owning document explicitly permits a non-admin committer is `ordinary`. + */ +enum class TipPriority { + PRIVILEGED, + ORDINARY, + ; + + /** Lower sorts first, and privileged wins a tie. */ + val order: Int get() = if (this == PRIVILEGED) 0 else 1 +} + +/** + * One candidate branch in a convergence pass. + * + * Every value here MUST come from MLS-valid bytes, retained state, decrypted + * app payloads, or the pinned policy. Transport arrival order, transport + * timestamps, outer event ids and local receive order MUST NOT appear — which + * is exactly what the superseded MIP-03 rule got wrong by ranking on + * `created_at` and the Nostr event id. + */ +data class CandidateBranch( + /** Epoch where this branch diverged from retained canonical state. */ + val forkEpoch: Long, + /** Epoch reached after replaying this branch's valid commits. */ + val tipEpoch: Long, + /** Number of valid commits from [forkEpoch] to [tipEpoch]. */ + val rawCommitDepth: Long, + val tipPriority: TipPriority, + /** Authenticated Marmot account identity of the tip committer (32 raw bytes). */ + val tipCommitter: ByteArray, + /** `SHA-256` of the tip Commit's serialized MLS message bytes (32 bytes). */ + val tipDigest: ByteArray, + /** + * Distinct valid app-payload sender identities per branch epoch. + * + * Keyed by epoch; the value is the set of ACCOUNT identities (hex) that + * sent a fully validated app payload decrypting on this branch at that + * epoch. Counting by account rather than by leaf is what stops a + * multi-device member from counting several times, and counting distinct + * senders is what stops one member inflating a branch by sending a lot. + */ + val witnessesByEpoch: Map>, +) { + init { + require(tipCommitter.size == 32) { "tip_committer must be a 32-byte account identity" } + require(tipDigest.size == 32) { "tip_digest must be a 32-byte SHA-256" } + require(rawCommitDepth >= 0) { "raw_commit_depth must not be negative" } + } + + /** Epochs strictly greater than [forkEpoch] and at most [tipEpoch]. */ + val branchEpochs: LongRange get() = (forkEpoch + 1)..tipEpoch + + /** + * `sum over branch epochs of min(distinct senders, quorum size)`. + * + * The per-epoch `min` is why one very chatty epoch cannot outweigh several + * quiet ones. + */ + fun appWitnessScore(policy: ConvergencePolicy): Long = + branchEpochs.sumOf { epoch -> + val senders = witnessesByEpoch[epoch]?.size ?: 0 + minOf(senders, policy.witnessQuorumSendersPerEpoch).toLong() + } + + /** + * True when at least [ConvergencePolicy.witnessQuorumEpochs] branch epochs + * each had at least [ConvergencePolicy.witnessQuorumSendersPerEpoch] + * distinct senders. + * + * Each epoch is evaluated independently: the qualifying sender set MAY + * differ from epoch to epoch, and no cohort has to span them all. + */ + fun witnessQuorumMet(policy: ConvergencePolicy): Boolean = + branchEpochs.count { epoch -> + (witnessesByEpoch[epoch]?.size ?: 0) >= policy.witnessQuorumSendersPerEpoch + } >= policy.witnessQuorumEpochs + + /** `raw_commit_depth` plus the bounded witness boost. */ + fun effectiveCommitDepth(policy: ConvergencePolicy): Long = rawCommitDepth + if (witnessQuorumMet(policy)) policy.maxWitnessOverrideDepth else 0L + + /** + * Eligible only when the fork lies inside the rollback horizon measured + * from the pass's FROZEN base epoch. + * + * The base is frozen for the whole pass so candidate replay cannot move + * the horizon while candidates are being compared. Deferred-commit expiry + * uses the LIVE canonical tip instead, so obsolete input still ages out as + * canonical state advances across passes — the two use different reference + * points on purpose. + */ + fun isEligible( + passBaseEpoch: Long, + policy: ConvergencePolicy, + ): Boolean = passBaseEpoch - forkEpoch <= policy.maxRewindCommits + + val tipCommitterHex: HexKey get() = tipCommitter.toHexKey() + val tipDigestHex: HexKey get() = tipDigest.toHexKey() + + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is CandidateBranch) return false + return forkEpoch == other.forkEpoch && + tipEpoch == other.tipEpoch && + rawCommitDepth == other.rawCommitDepth && + tipPriority == other.tipPriority && + tipCommitter.contentEquals(other.tipCommitter) && + tipDigest.contentEquals(other.tipDigest) && + witnessesByEpoch == other.witnessesByEpoch + } + + override fun hashCode(): Int { + var result = forkEpoch.hashCode() + result = 31 * result + tipEpoch.hashCode() + result = 31 * result + rawCommitDepth.hashCode() + result = 31 * result + tipPriority.hashCode() + result = 31 * result + tipCommitter.contentHashCode() + result = 31 * result + tipDigest.contentHashCode() + result = 31 * result + witnessesByEpoch.hashCode() + return result + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergenceDisposition.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergenceDisposition.kt new file mode 100644 index 0000000000..0e5d2dce9b --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergenceDisposition.kt @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +/** + * What convergence decided about one retained input + * (`foundation/errors.md`, "Convergence dispositions"). + * + * A disposition says WHAT happened; [ConvergenceCategory] says why. + */ +enum class ConvergenceDisposition { + /** On, or consumed by, the selected canonical branch. */ + ACCEPTED, + + /** + * No terminal classification yet; reconsidered when more input arrives. + * + * This is where valid commits on a NON-selected but still-eligible branch + * sit. Losing one pass is not permanent ineligibility — the branch stays + * eligible while its fork is inside the rollback horizon measured from the + * live tip. + */ + DEFERRED, + + /** Can no longer affect the group. */ + STALE, + + /** + * An MLS application message that decrypts only on a losing branch. Its + * app payload is WITHDRAWN from application output — the counterpart to + * withdrawing state notifications from a superseded commit. + */ + INVALIDATED, +} + +/** + * Why an input received its disposition. A `stale` or `deferred` input SHOULD + * carry one. + */ +enum class ConvergenceCategory { + DUPLICATE, + UNKNOWN_GROUP, + STALE_EPOCH, + AUTHORIZATION_FAILED, + MISSING_HISTORY, + TRANSPORT_DEFERRED, + RESOURCE_REFUSED, +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergencePolicy.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergencePolicy.kt new file mode 100644 index 0000000000..709df0c605 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergencePolicy.kt @@ -0,0 +1,77 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +/** + * The Marmot convergence policy (`protocol-core/convergence.md`). + * + * Version 1 is a set of PROTOCOL CONSTANTS, not a preference. It is not carried + * in group state and cannot be negotiated: every client uses exactly these + * values, and every branch scored within a pass uses the same ones. + * + * That rigidity is the point. Convergence is deliberately not group-tunable + * because a bad policy choice forks a group — two clients scoring the same + * candidates under different constants can each be internally consistent and + * still disagree about which branch is canonical. A future change ships as a + * NEW app component behind a required capability; clients MUST NOT infer the + * active policy from a software version, and until such a component exists + * there is no mechanism to change these at all. + */ +data class ConvergencePolicy( + /** How far back from the tip a branch MAY fork and still be eligible. */ + val maxRewindCommits: Long, + /** How many past epochs may still produce delivered payloads or witnesses. */ + val appPayloadPastEpochLimit: Long, + /** Minimum quiet time before a pass MAY be treated as settled. */ + val settlementQuiescenceMs: Long, + /** Maximum duration of one input-collection window; never extended by later input. */ + val maxConvergencePassMs: Long, + /** Distinct senders needed for one branch epoch to count toward quorum. */ + val witnessQuorumSendersPerEpoch: Int, + /** How many branch epochs must meet sender quorum. */ + val witnessQuorumEpochs: Int, + /** Maximum commit-depth boost a branch may receive from witness quorum. */ + val maxWitnessOverrideDepth: Long, +) { + init { + // The bound exists so app-payload traffic can never push a branch past + // the rollback horizon: without it, message volume could beat an + // arbitrarily longer valid commit branch. + require(maxWitnessOverrideDepth <= maxRewindCommits) { + "max_witness_override_depth ($maxWitnessOverrideDepth) must not exceed " + + "max_rewind_commits ($maxRewindCommits)" + } + } + + companion object { + /** Marmot convergence policy, version 1. */ + val V1 = + ConvergencePolicy( + maxRewindCommits = 5, + appPayloadPastEpochLimit = 5, + settlementQuiescenceMs = 1_000, + maxConvergencePassMs = 5_000, + witnessQuorumSendersPerEpoch = 2, + witnessQuorumEpochs = 1, + maxWitnessOverrideDepth = 1, + ) + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/GroupLifecycleState.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/GroupLifecycleState.kt new file mode 100644 index 0000000000..560ca14742 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/GroupLifecycleState.kt @@ -0,0 +1,213 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +/** + * A Marmot group's canonical lifecycle state (`protocol-core/group-state.md`). + * + * Each group has exactly one canonical MLS state at a time. A client may hold + * candidate or pending state alongside it, but only one state is visible as + * canonical, and this says which phase the group is in. + */ +enum class GroupLifecycleState { + /** Has a canonical epoch. The ONLY state where a new local commit may be prepared. */ + STABLE, + + /** A local commit is prepared but its publish obligation is unconfirmed. */ + PENDING_PUBLISH, + + /** Publication confirmed; the staged commit is being applied. */ + MERGING, + + /** + * Selecting a branch after a fork-shaped conflict, or after admitting a + * valid disband candidate — which forces this state even with no fork, so + * terminalization can only happen after selection. + */ + RECOVERING, + + /** + * Required retained material is permanently missing or corrupt and no + * verified repair path exists. + * + * Local to one client: it does NOT mean the group is dead. It means this + * client must repair, restore, rejoin, or discard its copy before it can + * safely apply more group traffic. A client here MUST NOT settle for its + * current local state just because it is the only one available. + */ + UNRECOVERABLE, + + /** An authenticated disband Commit was selected. Absorbing; no rejoin. */ + DISBANDED, + ; + + val isTerminal: Boolean get() = this == DISBANDED + + /** Only `Stable` may prepare a new local group-state commit. */ + val canPrepareLocalCommit: Boolean get() = this == STABLE + + /** + * Whether retained inbound may change canonical group state here. + * + * False during `PendingPublish` and `Merging` (a local transition is in + * flight), during `Unrecoverable` (nothing is safe to apply), and in + * `Disbanded` (inbound is not even retained). `Recovering` is false too: + * canonical state changes only when a SELECTED branch is applied, and + * replaying candidates before then is not application. + */ + val mayApplyInboundToCanonicalState: Boolean get() = this == STABLE + + fun canTransitionTo(next: GroupLifecycleState): Boolean = next in LEGAL_TRANSITIONS.getValue(this) + + companion object { + /** + * The legal transition table. + * + * Two absences are deliberate rather than oversights: + * + * - There is no `Merging -> Recovering` edge. A competing branch seen + * while applying our own confirmed commit is retained, the merge + * completes to `Stable`, and admission into a bounded pass then + * triggers `Stable -> Recovering`. Diverting mid-merge would leave a + * half-applied epoch. + * - `Disbanded` has no outgoing edge at all. It is absorbing: no later + * branch supersedes a terminalized disband, and a replacement + * conversation is a new MLS group. + * + * `Recovering` re-entry is implicit rather than a self-edge: input + * arriving during recovery, before the pass cutoff, folds into the + * pass already running. + */ + private val LEGAL_TRANSITIONS: Map> = + mapOf( + STABLE to setOf(PENDING_PUBLISH, RECOVERING, UNRECOVERABLE), + PENDING_PUBLISH to setOf(MERGING, STABLE, UNRECOVERABLE), + MERGING to setOf(STABLE, UNRECOVERABLE), + RECOVERING to setOf(STABLE, DISBANDED, UNRECOVERABLE), + UNRECOVERABLE to setOf(STABLE), + DISBANDED to emptySet(), + ) + } +} + +/** + * Convergence's derived status (`protocol-core/group-state.md`, "Convergence + * status"). + * + * Derived from stored input and policy — never a claim made by the transport. + * The lifecycle state is authoritative; this is a view of how convergence is + * progressing within it. + */ +enum class ConvergenceStatus { + /** A bounded pass is collecting selection-relevant input. */ + SYNCING, + + /** + * The batch is frozen and a deterministic fixed point is being computed + * over already-retained state. Does NOT wait for fetches or admit later + * input. + */ + RESOLVING, + + /** + * A fixed point was reached and any selected branch applied. + * + * Local to the input this client retained and admitted. It is NOT global + * finality, not proof that transports finished synchronizing, and not a + * promise that later valid input cannot open another pass. + */ + SETTLED, + + /** Cannot continue without a repair path, missing material, or resources. */ + BLOCKED, + ; + + /** + * Whether this status permits preparing a group-state change or encrypting + * an app payload. + * + * Only `Settled`. Outbound work is held while convergence is unresolved + * because a payload MUST be encrypted against the SELECTED canonical state + * — encrypting against a state that later loses branch selection produces + * a message the group will invalidate. + */ + val allowsOutboundWork: Boolean get() = this == SETTLED + + fun isLegalIn(lifecycle: GroupLifecycleState): Boolean = lifecycle in LEGAL_COMBINATIONS.getValue(this) + + companion object { + /** + * Which lifecycle states each status may appear in. + * + * `PendingPublish` and `Merging` appear nowhere: they are local-publish + * states, not convergence passes, so convergence status is not + * meaningful in them. + */ + private val LEGAL_COMBINATIONS: Map> = + mapOf( + SYNCING to setOf(GroupLifecycleState.STABLE, GroupLifecycleState.RECOVERING), + RESOLVING to setOf(GroupLifecycleState.STABLE, GroupLifecycleState.RECOVERING), + SETTLED to setOf(GroupLifecycleState.STABLE, GroupLifecycleState.DISBANDED), + BLOCKED to + setOf( + GroupLifecycleState.STABLE, + GroupLifecycleState.RECOVERING, + GroupLifecycleState.UNRECOVERABLE, + ), + ) + } +} + +/** + * Durable local gates that restrict outbound work without being canonical + * lifecycle states. + * + * Each survives restart and each is one-way until the protocol event that + * clears it. They are separate from [GroupLifecycleState] because the MLS group + * state does not change when they are set — the member is still in the tree. + */ +enum class LocalOutboundGate { + /** + * `Leaving`: a SelfRemove proposal was sent. The member is still in the MLS + * group until a commit removes it, and the gate may span several + * epoch-bound SelfRemove proposals. + */ + LEAVING, + + /** + * `Disbanding`: an admin's irreversible disband request is unresolved. It + * blocks all new outbound work while the request is prepared, published, + * retried, or evaluated by convergence, and survives publication failure + * and restart. + */ + DISBANDING, + + /** + * The local member's own removal has been realized. The group is held as a + * removed, inactive copy: history may be kept, but the group must not be + * presented as active and nothing may be sent to it. Cleared only by an + * authenticated re-join. + */ + REMOVED, + ; + + val blocksOutbound: Boolean get() = true +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/BranchSelectorTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/BranchSelectorTest.kt new file mode 100644 index 0000000000..253ad2e0a1 --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/BranchSelectorTest.kt @@ -0,0 +1,281 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertNull +import kotlin.test.assertSame +import kotlin.test.assertTrue + +/** + * Branch selection under convergence policy v1. + * + * These are the rules that decide which history a group keeps, so a + * disagreement here is a group split rather than a wrong answer. Everything is + * pure — no timing, no transport — which is exactly why it can be pinned this + * precisely. + */ +class BranchSelectorTest { + private val policy = ConvergencePolicy.V1 + + private fun key(b: Int) = ByteArray(32) { b.toByte() } + + private fun branch( + forkEpoch: Long = 8, + depth: Long, + priority: TipPriority = TipPriority.ORDINARY, + committer: Int = 0x10, + digest: Int = 0x20, + witnesses: Map> = emptyMap(), + ) = CandidateBranch( + forkEpoch = forkEpoch, + tipEpoch = forkEpoch + depth, + rawCommitDepth = depth, + tipPriority = priority, + tipCommitter = key(committer), + tipDigest = key(digest), + witnessesByEpoch = witnesses, + ) + + /** Two distinct senders on one branch epoch — the quorum shape. */ + private fun quorumAt(epoch: Long) = mapOf(epoch to setOf("a".repeat(64), "b".repeat(64))) + + @Test + fun policyV1MatchesTheAdoptedConstants() { + assertEquals(5, policy.maxRewindCommits) + assertEquals(5, policy.appPayloadPastEpochLimit) + assertEquals(1_000, policy.settlementQuiescenceMs) + assertEquals(5_000, policy.maxConvergencePassMs) + assertEquals(2, policy.witnessQuorumSendersPerEpoch) + assertEquals(1, policy.witnessQuorumEpochs) + assertEquals(1, policy.maxWitnessOverrideDepth) + } + + @Test + fun theWitnessBoostCannotExceedTheRewindHorizon() { + // Without this bound, app-payload traffic could push a branch past the + // rollback horizon and beat an arbitrarily longer valid commit branch. + assertFailsWith { + policy.copy(maxWitnessOverrideDepth = policy.maxRewindCommits + 1) + } + } + + // --- the worked example --------------------------------------------------- + + @Test + fun aWitnessedThreeCommitBranchBeatsAnUnwitnessedFour() { + // Effective depth ties at 4 (3 + the 1-commit boost), so selection + // falls to step 2, where quorum beats no quorum. + val witnessed = branch(depth = 3, witnesses = quorumAt(10), digest = 0xff) + val plain = branch(depth = 4, digest = 0x01) + + assertEquals(4, witnessed.effectiveCommitDepth(policy)) + assertEquals(4, plain.effectiveCommitDepth(policy)) + assertTrue(witnessed.witnessQuorumMet(policy)) + assertTrue(!plain.witnessQuorumMet(policy)) + + assertSame(witnessed, BranchSelector.select(listOf(plain, witnessed), passBaseEpoch = 8, policy = policy)) + } + + @Test + fun aFiveCommitBranchStillBeatsBoth() { + // The boost is capped at one commit, so raw depth wins outright here. + val witnessed = branch(depth = 3, witnesses = quorumAt(10)) + val plain = branch(depth = 4) + val longest = branch(depth = 5, digest = 0xfe) + + assertSame( + longest, + BranchSelector.select(listOf(witnessed, plain, longest), passBaseEpoch = 8, policy = policy), + ) + } + + // --- the comparison chain ------------------------------------------------- + + @Test + fun rawDepthIsNotASeparateComparisonStep() { + // Both reach effective depth 4 and both have quorum, so step 3 is the + // witness SCORE — not raw depth. The shorter branch has the higher + // score here, and it must win: an implementation that inserted a + // raw-depth step would pick the other one. + val shortHighScore = + branch(depth = 3, witnesses = mapOf(10L to setOf("a".repeat(64), "b".repeat(64)), 11L to setOf("c".repeat(64), "d".repeat(64)))) + val longLowScore = branch(depth = 3, witnesses = quorumAt(9), digest = 0x01) + + assertEquals(shortHighScore.effectiveCommitDepth(policy), longLowScore.effectiveCommitDepth(policy)) + assertTrue(shortHighScore.appWitnessScore(policy) > longLowScore.appWitnessScore(policy)) + assertSame( + shortHighScore, + BranchSelector.select(listOf(longLowScore, shortHighScore), passBaseEpoch = 8, policy = policy), + ) + } + + @Test + fun privilegedTipsBeatOrdinaryOnesOnceEverythingElseTies() { + // Stops commit-byte choice alone from letting an ordinary self-update + // beat a tied admin removal. + val admin = branch(depth = 1, priority = TipPriority.PRIVILEGED, committer = 0xff, digest = 0xff) + val ordinary = branch(depth = 1, priority = TipPriority.ORDINARY, committer = 0x01, digest = 0x01) + + assertSame(admin, BranchSelector.select(listOf(ordinary, admin), passBaseEpoch = 8, policy = policy)) + } + + @Test + fun committerThenDigestBreakTheFinalTie() { + val lowCommitter = branch(depth = 1, committer = 0x01, digest = 0xff) + val highCommitter = branch(depth = 1, committer = 0x02, digest = 0x00) + assertSame( + lowCommitter, + BranchSelector.select(listOf(highCommitter, lowCommitter), passBaseEpoch = 8, policy = policy), + ) + + // Digest decides only when the SAME committer produced both. + val lowDigest = branch(depth = 1, committer = 0x01, digest = 0x01) + val highDigest = branch(depth = 1, committer = 0x01, digest = 0x02) + assertSame( + lowDigest, + BranchSelector.select(listOf(highDigest, lowDigest), passBaseEpoch = 8, policy = policy), + ) + } + + @Test + fun byteOrderingIsUnsigned() { + // 0x01 must sort before 0x80. Account keys and digests are uniformly + // distributed, so a signed comparison would invert roughly half of all + // final ties — and two clients would disagree that often. + val low = branch(depth = 1, committer = 0x01, digest = 0x01) + val high = branch(depth = 1, committer = 0x80, digest = 0x01) + assertSame(low, BranchSelector.select(listOf(high, low), passBaseEpoch = 8, policy = policy)) + + val lowDigest = branch(depth = 1, committer = 0x01, digest = 0x01) + val highDigest = branch(depth = 1, committer = 0x01, digest = 0x80) + assertSame( + lowDigest, + BranchSelector.select(listOf(highDigest, lowDigest), passBaseEpoch = 8, policy = policy), + ) + } + + // --- witness scoring ------------------------------------------------------ + + @Test + fun oneSenderCannotInflateABranchByShouting() { + // Witnesses are counted by DISTINCT sender per epoch, so a hundred + // messages from one account score exactly one. + val loner = branch(depth = 1, witnesses = mapOf(9L to setOf("a".repeat(64)))) + assertEquals(1, loner.appWitnessScore(policy)) + assertTrue(!loner.witnessQuorumMet(policy), "one sender is not a quorum") + } + + @Test + fun perEpochScoreIsCappedAtTheQuorumSize() { + // Five senders in one epoch score 2, not 5 — so one very busy epoch + // cannot outweigh several quiet ones. + val busy = branch(depth = 1, witnesses = mapOf(9L to (1..5).map { "$it".repeat(64) }.toSet())) + assertEquals(2, busy.appWitnessScore(policy)) + } + + @Test + fun witnessesAtOrBeforeTheForkEpochDoNotCount() { + // Branch epochs are strictly greater than fork_epoch: traffic from + // before the divergence is shared history, not evidence for a branch. + val branch = branch(forkEpoch = 8, depth = 2, witnesses = mapOf(8L to setOf("a".repeat(64), "b".repeat(64)))) + assertEquals(0, branch.appWitnessScore(policy)) + assertTrue(!branch.witnessQuorumMet(policy)) + } + + @Test + fun quorumEpochsAreEvaluatedIndependently() { + // The qualifying sender set may differ per epoch; no cohort has to + // span them all. + val branch = + branch( + depth = 2, + witnesses = + mapOf( + 9L to setOf("a".repeat(64), "b".repeat(64)), + 10L to setOf("c".repeat(64), "d".repeat(64)), + ), + ) + assertTrue(branch.witnessQuorumMet(policy)) + assertEquals(4, branch.appWitnessScore(policy)) + } + + // --- eligibility ---------------------------------------------------------- + + @Test + fun branchesForkedOutsideTheRewindHorizonAreNeverSelected() { + val inHorizon = branch(forkEpoch = 5, depth = 1) + val outside = branch(forkEpoch = 4, depth = 50, digest = 0x01) + + assertTrue(inHorizon.isEligible(passBaseEpoch = 10, policy = policy)) + assertTrue(!outside.isEligible(passBaseEpoch = 10, policy = policy)) + + // Even though it is far longer, the out-of-horizon branch is not a + // candidate at all. + assertSame( + inHorizon, + BranchSelector.select(listOf(outside, inHorizon), passBaseEpoch = 10, policy = policy), + ) + assertNull(BranchSelector.select(listOf(outside), passBaseEpoch = 10, policy = policy)) + } + + @Test + fun selectionIsIndependentOfInputOrder() { + // The whole point of the algorithm: two clients that received the same + // candidates in different orders must choose the same branch. + val branches = + listOf( + branch(depth = 2, committer = 0x30, digest = 0x40), + branch(depth = 3, witnesses = quorumAt(10), committer = 0x10, digest = 0x90), + branch(depth = 4, committer = 0x20, digest = 0x10), + branch(depth = 1, priority = TipPriority.PRIVILEGED, committer = 0x05, digest = 0x05), + ) + val expected = BranchSelector.select(branches, passBaseEpoch = 8, policy = policy) + + assertEquals(expected, BranchSelector.select(branches.reversed(), passBaseEpoch = 8, policy = policy)) + assertEquals(expected, BranchSelector.select(branches.shuffled(), passBaseEpoch = 8, policy = policy)) + for (rotation in branches.indices) { + val rotated = branches.drop(rotation) + branches.take(rotation) + assertEquals(expected, BranchSelector.select(rotated, passBaseEpoch = 8, policy = policy)) + } + } + + @Test + fun rankIsATotalOrderOverEligibleBranches() { + val branches = + listOf( + branch(depth = 1, committer = 0x03), + branch(depth = 1, committer = 0x01), + branch(depth = 1, committer = 0x02), + branch(forkEpoch = 0, depth = 9), + ) + val ranked = BranchSelector.rank(branches, passBaseEpoch = 8, policy = policy) + assertEquals(3, ranked.size, "the out-of-horizon branch is filtered out") + assertEquals(listOf(0x01, 0x02, 0x03), ranked.map { it.tipCommitter[0].toInt() }) + } + + @Test + fun noEligibleBranchesSelectsNothing() { + assertNull(BranchSelector.select(emptyList(), passBaseEpoch = 8, policy = policy)) + } +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/GroupLifecycleStateTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/GroupLifecycleStateTest.kt new file mode 100644 index 0000000000..171cb33de9 --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/GroupLifecycleStateTest.kt @@ -0,0 +1,143 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +import kotlin.test.Test +import kotlin.test.assertFalse +import kotlin.test.assertTrue + +/** The canonical lifecycle transition table and its couplings. */ +class GroupLifecycleStateTest { + @Test + fun onlyStableMayPrepareALocalCommit() { + for (state in GroupLifecycleState.entries) { + assertEquals(state == GroupLifecycleState.STABLE, state.canPrepareLocalCommit, "$state") + } + } + + @Test + fun mergingNeverDivertsIntoRecovering() { + // A competing branch observed mid-merge is retained; the merge finishes + // to Stable and the bounded pass then triggers Stable -> Recovering. + // Diverting here would leave a half-applied epoch. + assertFalse(GroupLifecycleState.MERGING.canTransitionTo(GroupLifecycleState.RECOVERING)) + assertTrue(GroupLifecycleState.MERGING.canTransitionTo(GroupLifecycleState.STABLE)) + assertTrue(GroupLifecycleState.STABLE.canTransitionTo(GroupLifecycleState.RECOVERING)) + } + + @Test + fun disbandedIsAbsorbing() { + for (target in GroupLifecycleState.entries) { + assertFalse( + GroupLifecycleState.DISBANDED.canTransitionTo(target), + "no later branch may supersede a terminalized disband ($target)", + ) + } + assertTrue(GroupLifecycleState.DISBANDED.isTerminal) + } + + @Test + fun onlyRecoveringReachesDisbanded() { + for (state in GroupLifecycleState.entries) { + assertEquals( + state == GroupLifecycleState.RECOVERING, + state.canTransitionTo(GroupLifecycleState.DISBANDED), + "$state", + ) + } + } + + @Test + fun unrecoverableIsLocalAndRepairable() { + // Local to one client, and it does have a way out — a repair, a + // restore, or a verified re-join. + assertTrue(GroupLifecycleState.UNRECOVERABLE.canTransitionTo(GroupLifecycleState.STABLE)) + assertFalse(GroupLifecycleState.UNRECOVERABLE.isTerminal) + assertFalse(GroupLifecycleState.UNRECOVERABLE.canTransitionTo(GroupLifecycleState.RECOVERING)) + } + + @Test + fun inboundChangesCanonicalStateOnlyInStable() { + for (state in GroupLifecycleState.entries) { + assertEquals( + state == GroupLifecycleState.STABLE, + state.mayApplyInboundToCanonicalState, + "$state", + ) + } + } + + @Test + fun everyStateReachableFromStableEventuallyReturnsToIt() { + // Sanity on the table: nothing except Disbanded is a dead end. + for (state in GroupLifecycleState.entries) { + if (state == GroupLifecycleState.DISBANDED) continue + assertTrue( + reaches(state, GroupLifecycleState.STABLE), + "$state must be able to reach Stable again", + ) + } + } + + private fun reaches( + from: GroupLifecycleState, + target: GroupLifecycleState, + seen: MutableSet = mutableSetOf(), + ): Boolean { + if (from == target) return true + if (!seen.add(from)) return false + return GroupLifecycleState.entries.any { from.canTransitionTo(it) && reaches(it, target, seen) } + } + + // --- convergence status --------------------------------------------------- + + @Test + fun onlySettledReleasesOutboundWork() { + for (status in ConvergenceStatus.entries) { + assertEquals(status == ConvergenceStatus.SETTLED, status.allowsOutboundWork, "$status") + } + } + + @Test + fun theStatusLifecycleCombinationTableHolds() { + assertTrue(ConvergenceStatus.SYNCING.isLegalIn(GroupLifecycleState.RECOVERING)) + assertTrue(ConvergenceStatus.SETTLED.isLegalIn(GroupLifecycleState.DISBANDED)) + // A group leaves Recovering for Stable only after Settled — so Settled + // is never legal *in* Recovering. + assertFalse(ConvergenceStatus.SETTLED.isLegalIn(GroupLifecycleState.RECOVERING)) + // Blocked on missing state is the Unrecoverable condition. + assertTrue(ConvergenceStatus.BLOCKED.isLegalIn(GroupLifecycleState.UNRECOVERABLE)) + assertFalse(ConvergenceStatus.SYNCING.isLegalIn(GroupLifecycleState.UNRECOVERABLE)) + + // PendingPublish and Merging are local-publish states, not convergence + // passes, so no status is meaningful in them. + for (status in ConvergenceStatus.entries) { + assertFalse(status.isLegalIn(GroupLifecycleState.PENDING_PUBLISH), "$status") + assertFalse(status.isLegalIn(GroupLifecycleState.MERGING), "$status") + } + } +} + +private fun assertEquals( + expected: Boolean, + actual: Boolean, + message: String, +) = kotlin.test.assertEquals(expected, actual, message) From 789641067d78378ffb4391159c52532219246b8b Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 16:59:39 +0000 Subject: [PATCH 08/79] feat(marmot): add the bounded convergence pass MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The other half of the convergence machinery: the input-collection window that decides which inputs a resolution sees. A pass exists so a client resolves a fixed batch rather than chasing a moving one. It snapshots pass_base_epoch when it opens, closes at the earlier of the quiescence window and the absolute deadline, and then freezes: resolution reaches a deterministic fixed point using only what was admitted, without waiting for a fetch or admitting later input. Two asymmetries carry real weight, and both are tested. Only selection-relevant input restarts quiescence. Ordinary chat traffic that cannot change branch selection must not, because outbound work is gated on the group settling — if it did, a busy group would never send anything. Neither a detected fork nor an admitted disband candidate restarts anything. A pass that becomes a recovery is the same pass; restarting its timers or resnapshotting its base epoch would let a steady trickle of forks hold it open indefinitely. The disband case forces Stable -> Recovering even on a linear edge with no fork, so terminalization can only happen after branch selection. Deferred-commit expiry deliberately tracks the LIVE canonical tip, so obsolete input ages out as state advances across completed passes, while branch eligibility uses the FROZEN pass_base_epoch, so an open pass cannot move its own rollback horizon while comparing candidates. Using one epoch for both would make the horizon shift underneath a pass. The timers are scheduling, not semantics: input arrival time, cutoff time and pass membership never enter candidate validity or the branch score, and there is a test that splitting the same inputs across passes reaches the same answer. Driven by an injected monotonic clock — a wall clock would make these tests flaky and prove less, and a clock adjustment must not be able to shorten or extend a real pass either. Twelve tests. Full quartz jvmTest: 4,594 tests, 0 failures. Two of these tests started out asserting my own bad arithmetic — the tick at exactly the absolute deadline is refused, not admitted, and a pass cannot be kept alive to 4800ms without feeding it — and now assert the rules explicitly. Still open: the candidate-graph builder that replays MLS bytes against retained states, and wiring the pass and selector into MarmotInboundProcessor. CommitOrdering's transport-metadata tiebreak still stands until that exists. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- quartz/plans/2026-09-08-marmot-spec-resync.md | 21 +- .../marmot/protocolCore/ConvergencePass.kt | 215 ++++++++++++++++ .../protocolCore/ConvergencePassTest.kt | 232 ++++++++++++++++++ 3 files changed, 464 insertions(+), 4 deletions(-) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergencePass.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergencePassTest.kt diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index df64ecfd84..e80529537b 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -438,10 +438,23 @@ Things worth knowing about the implementation: - Witnesses count DISTINCT sender accounts per branch epoch, capped at the quorum size, and epochs at or before `fork_epoch` do not count at all. -**Still open:** the bounded pass scheduler (quiescence/deadline timers, the frozen batch, -`pass_base_epoch`) and the candidate-graph builder that replays MLS bytes against retained -states. `CommitOrdering`'s transport-metadata tiebreak therefore still stands — it is only safe -to delete once something replaces it end to end, and selection alone does not. +`ConvergencePass` implements the bounded window: `pass_base_epoch` snapshot, the quiescence +and absolute deadlines, the frozen batch, and the forced `Stable -> Recovering` transitions for +a fork or an admitted disband candidate. Driven by an injected monotonic clock so the timing +rules are tested deterministically rather than flakily. + +Two asymmetries there are deliberate and tested: only SELECTION-RELEVANT input restarts +quiescence (ordinary chat must not hold a pass open, because outbound work is gated on +settling), and neither a fork nor a disband restarts anything — a pass that becomes a recovery +is the same pass, and restarting would let a trickle of forks hold it open forever. Deferred +commit expiry tracks the LIVE canonical tip while branch eligibility uses the FROZEN +`pass_base_epoch`; using one epoch for both would let an open pass move its own horizon. + +**Still open:** the candidate-graph builder that replays MLS bytes against retained states, and +wiring the pass + selector into `MarmotInboundProcessor` so inbound commits actually flow +through them. `CommitOrdering`'s transport-metadata tiebreak therefore still stands — it is only +safe to delete once something replaces it end to end, and a selector with no graph feeding it +does not. **Stage 7 — durability/restart conformance, app payload kinds (1009/1210), encrypted-media v2, push owner proof.** diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergencePass.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergencePass.kt new file mode 100644 index 0000000000..70b174b9c7 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergencePass.kt @@ -0,0 +1,215 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +/** + * Why an admitted input matters to the pass currently collecting + * (`protocol-core/convergence.md`, "Convergence policy"). + */ +enum class InputRelevance { + /** + * Newly retained or reclassified input that can still change deterministic + * resolution of this batch — it adds or invalidates an eligible candidate + * edge, changes a bounded witness score, supplies a missing parent, or + * makes deferred input processable. + * + * Only this restarts the quiescence window. + */ + SELECTION_RELEVANT, + + /** + * Admitted, but cannot change branch selection: ordinary app-payload + * delivery, and duplicate, invalid, stale, already-dominated or + * already-fully-counted witness inputs. + * + * Deliberately does NOT restart quiescence. If it did, a busy group would + * never go quiet and outbound work would be held indefinitely behind chat + * traffic that changes nothing. + */ + ORDINARY, +} + +/** + * One bounded convergence input-collection window + * (`protocol-core/convergence.md`). + * + * A pass exists so a client resolves a FIXED batch rather than chasing a moving + * one. It opens when the scheduler admits eligible retained input — receipt or + * durable retention alone does not start one — snapshots `pass_base_epoch`, and + * closes at the earlier of quiescence or the absolute deadline. At that cutoff + * the batch is frozen: resolution then reaches a deterministic fixed point using + * only what was admitted, without waiting for a fetch or admitting later input. + * + * Both intervals are measured with the client's local MONOTONIC clock, never a + * wall clock, so a clock adjustment cannot shorten or extend a pass. + * + * ## What the timers are and are not + * + * They are scheduling, not semantics. Input arrival time, cutoff time and pass + * membership MUST NOT enter candidate validity or the branch score, and + * implementations MUST NOT use timer tuning or pass partitioning to resolve a + * difference the deterministic rules leave open. Dividing the same retained + * input across different passes must not change the eventual result — the + * timers only decide when work happens, never what it decides. + * + * Fixed-point resolution itself has no protocol deadline: device speed MUST NOT + * make two clients resolve the same frozen batch differently. + */ +class ConvergencePass( + /** Canonical epoch when the pass started. Fixed until a branch is applied. */ + val passBaseEpoch: Long, + private val policy: ConvergencePolicy = ConvergencePolicy.V1, + /** Local monotonic milliseconds. */ + private val monotonicNowMs: () -> Long, +) { + private val startedAtMs: Long = monotonicNowMs() + + /** When the quiescence window last restarted. */ + private var lastSelectionRelevantMs: Long = startedAtMs + + private var frozen: Boolean = false + private var forkDetected: Boolean = false + private var disbandCandidateAdmitted: Boolean = false + + private val batch = mutableListOf() + + /** The absolute deadline. Starts when the pass starts and never restarts. */ + val absoluteDeadlineMs: Long get() = startedAtMs + policy.maxConvergencePassMs + + /** The current quiescence deadline; moves forward on selection-relevant input. */ + val quiescenceDeadlineMs: Long get() = lastSelectionRelevantMs + policy.settlementQuiescenceMs + + /** The earlier of the two — the cutoff at which the batch freezes. */ + val cutoffMs: Long get() = minOf(quiescenceDeadlineMs, absoluteDeadlineMs) + + /** Inputs admitted before the cutoff. Immutable once frozen. */ + val admitted: List get() = batch.toList() + + val isFrozen: Boolean get() = frozen + + /** True once an eligible divergent edge made this a recovery pass. */ + val isRecovery: Boolean get() = forkDetected || disbandCandidateAdmitted + + /** + * Admit [input] into this pass. + * + * Returns false when the pass has already frozen: that input is not + * discarded, it simply belongs to a LATER pass. Retention and admission are + * different things. + */ + fun admit( + input: Any, + relevance: InputRelevance, + ): Boolean { + if (isClosed()) return false + batch.add(input) + if (relevance == InputRelevance.SELECTION_RELEVANT) { + lastSelectionRelevantMs = monotonicNowMs() + } + return true + } + + /** + * Record that an eligible divergent edge is available, turning this into a + * recovery pass. + * + * Does NOT restart either timer or resnapshot [passBaseEpoch]: a pass that + * becomes a recovery is the SAME pass, and restarting would let a steady + * trickle of forks keep it open forever. + */ + fun markForkDetected() { + forkDetected = true + } + + /** + * Record that a valid candidate changing the group lifecycle to + * `disbanded` was admitted. + * + * This forces `Stable -> Recovering` even when the candidate is a linear + * edge and no fork exists, so terminalization can only happen after branch + * selection. It asserts nothing about the candidate set being forked, gives + * the disband no scoring priority, and — like [markForkDetected] — restarts + * nothing. + */ + fun markDisbandCandidateAdmitted() { + disbandCandidateAdmitted = true + } + + fun isClosed(nowMs: Long = monotonicNowMs()): Boolean = frozen || nowMs >= cutoffMs + + /** + * Freeze the batch. Idempotent; after this, [admit] refuses everything. + */ + fun freeze(): List { + frozen = true + return admitted + } + + /** + * The convergence status this pass implies, given whether resolution of the + * frozen batch has finished. + * + * `Settled` is a LOCAL fixed point over the input this client retained and + * admitted. It is not global finality and not a promise that later valid + * input cannot open another pass. + */ + fun status( + nowMs: Long = monotonicNowMs(), + resolutionComplete: Boolean = false, + ): ConvergenceStatus = + when { + !isClosed(nowMs) -> ConvergenceStatus.SYNCING + !resolutionComplete -> ConvergenceStatus.RESOLVING + else -> ConvergenceStatus.SETTLED + } + + /** + * The lifecycle state this pass implies while it runs, starting from + * [current]. + * + * A linear pass that began in `Stable` stays `Stable`; an eligible + * divergent edge or an admitted disband candidate moves it to `Recovering`. + */ + fun lifecycleWhileRunning(current: GroupLifecycleState): GroupLifecycleState = if (current == GroupLifecycleState.STABLE && isRecovery) GroupLifecycleState.RECOVERING else current + + companion object { + /** + * Whether a deferred Commit has aged out + * (`protocol-core/convergence.md`, "Candidate branches"). + * + * ```text + * canonical_tip_epoch - commit_source_epoch > max_rewind_commits + * ``` + * + * Note the reference point: expiry uses the LIVE canonical tip, so + * obsolete input ages out as canonical state advances across completed + * passes. Branch ELIGIBILITY uses the frozen `pass_base_epoch` instead, + * so an open pass cannot change its own rollback horizon while it is + * comparing candidates. Using one epoch for both would make a pass's + * horizon move under it. + */ + fun isDeferredCommitStale( + canonicalTipEpoch: Long, + commitSourceEpoch: Long, + policy: ConvergencePolicy = ConvergencePolicy.V1, + ): Boolean = canonicalTipEpoch - commitSourceEpoch > policy.maxRewindCommits + } +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergencePassTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergencePassTest.kt new file mode 100644 index 0000000000..6ea9e150d5 --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/ConvergencePassTest.kt @@ -0,0 +1,232 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFalse +import kotlin.test.assertTrue + +/** + * The bounded convergence pass: when a batch freezes, and what does or does not + * move the deadlines. + * + * Driven by a fake monotonic clock, because the point of these rules is that + * they depend on elapsed time and nothing else — asserting them against a real + * clock would make the tests flaky and prove less. + */ +class ConvergencePassTest { + private val policy = ConvergencePolicy.V1 + + private class FakeClock( + var nowMs: Long = 0, + ) { + fun advance(ms: Long) { + nowMs += ms + } + } + + private fun pass( + clock: FakeClock, + baseEpoch: Long = 8, + ) = ConvergencePass(passBaseEpoch = baseEpoch, policy = policy, monotonicNowMs = { clock.nowMs }) + + @Test + fun aQuietPassClosesAfterTheQuiescenceWindow() { + val clock = FakeClock() + val pass = pass(clock) + + clock.advance(policy.settlementQuiescenceMs - 1) + assertFalse(pass.isClosed()) + assertEquals(ConvergenceStatus.SYNCING, pass.status()) + + clock.advance(1) + assertTrue(pass.isClosed()) + assertEquals(ConvergenceStatus.RESOLVING, pass.status()) + assertEquals(ConvergenceStatus.SETTLED, pass.status(resolutionComplete = true)) + } + + @Test + fun selectionRelevantInputRestartsQuiescence() { + val clock = FakeClock() + val pass = pass(clock) + + clock.advance(900) + assertTrue(pass.admit("commit", InputRelevance.SELECTION_RELEVANT)) + + clock.advance(900) + assertFalse(pass.isClosed(), "the window restarted, so 1800ms of activity has not closed it") + + clock.advance(100) + assertTrue(pass.isClosed()) + } + + @Test + fun ordinaryInputDoesNotRestartQuiescence() { + // Chat traffic that cannot change branch selection must not hold the + // pass open — outbound work is gated on settling, so a busy group would + // otherwise never send anything. + val clock = FakeClock() + val pass = pass(clock) + + clock.advance(900) + assertTrue(pass.admit("chat", InputRelevance.ORDINARY)) + + clock.advance(100) + assertTrue(pass.isClosed(), "ordinary input left the original window running") + } + + @Test + fun theAbsoluteDeadlineIsNeverExtended() { + // A steady stream of selection-relevant input keeps restarting + // quiescence, so without the hard deadline the pass would never close. + val clock = FakeClock() + val pass = pass(clock) + + var admitted = 0 + repeat(20) { + clock.advance(500) + if (pass.admit("commit", InputRelevance.SELECTION_RELEVANT)) admitted++ + } + + assertTrue(pass.isClosed()) + assertEquals(policy.maxConvergencePassMs, pass.absoluteDeadlineMs) + // Ticks land at 500..10000; admission stops at the 5000ms deadline, and + // the tick AT the deadline is already too late (the pass closes when + // now reaches the cutoff, not after it). So 500..4500 => 9. + assertEquals(9, admitted, "admission stops at the absolute deadline") + } + + @Test + fun theCutoffIsTheEarlierOfTheTwoDeadlines() { + val clock = FakeClock() + val pass = pass(clock) + assertEquals(policy.settlementQuiescenceMs, pass.cutoffMs, "quiet start: quiescence is earlier") + + // Keep the pass alive with steady selection-relevant input until + // quiescence would run past the absolute deadline; the cutoff clamps. + repeat(6) { + clock.advance(800) + assertTrue(pass.admit("commit", InputRelevance.SELECTION_RELEVANT)) + } + assertEquals(4_800, clock.nowMs) + assertEquals(5_800, pass.quiescenceDeadlineMs) + assertEquals(policy.maxConvergencePassMs, pass.cutoffMs, "clamped to the absolute deadline") + assertFalse(pass.isClosed()) + + clock.advance(200) + assertTrue(pass.isClosed(), "the absolute deadline closes it even though quiescence has not elapsed") + } + + @Test + fun inputAfterTheCutoffBelongsToALaterPass() { + val clock = FakeClock() + val pass = pass(clock) + pass.admit("first", InputRelevance.SELECTION_RELEVANT) + + clock.advance(policy.settlementQuiescenceMs) + assertFalse(pass.admit("late", InputRelevance.SELECTION_RELEVANT)) + assertEquals(listOf("first"), pass.admitted, "the late input is not in this batch") + } + + @Test + fun freezingIsIdempotentAndFinal() { + val clock = FakeClock() + val pass = pass(clock) + pass.admit("a", InputRelevance.SELECTION_RELEVANT) + + val frozen = pass.freeze() + assertEquals(listOf("a"), frozen) + assertTrue(pass.isFrozen) + assertFalse(pass.admit("b", InputRelevance.SELECTION_RELEVANT), "a frozen batch admits nothing") + assertEquals(frozen, pass.freeze()) + } + + @Test + fun aForkTurnsThePassIntoRecoveryWithoutRestartingIt() { + // The same pass becomes a recovery. Restarting the timers here would + // let a trickle of forks hold it open indefinitely. + val clock = FakeClock() + val pass = pass(clock) + val originalDeadline = pass.absoluteDeadlineMs + + clock.advance(600) + pass.markForkDetected() + + assertTrue(pass.isRecovery) + assertEquals(originalDeadline, pass.absoluteDeadlineMs) + assertEquals(8, pass.passBaseEpoch, "the base epoch is not resnapshotted") + assertEquals( + GroupLifecycleState.RECOVERING, + pass.lifecycleWhileRunning(GroupLifecycleState.STABLE), + ) + } + + @Test + fun aDisbandCandidateForcesRecoveryEvenWithNoFork() { + // Terminalization may only happen after branch selection, so admitting + // a valid disband opens a mandatory bounded pass even on a linear edge. + val clock = FakeClock() + val pass = pass(clock) + + assertEquals(GroupLifecycleState.STABLE, pass.lifecycleWhileRunning(GroupLifecycleState.STABLE)) + pass.markDisbandCandidateAdmitted() + + assertTrue(pass.isRecovery) + assertEquals( + GroupLifecycleState.RECOVERING, + pass.lifecycleWhileRunning(GroupLifecycleState.STABLE), + ) + } + + @Test + fun aLinearPassStaysStable() { + val clock = FakeClock() + val pass = pass(clock) + pass.admit("linear commit", InputRelevance.SELECTION_RELEVANT) + assertFalse(pass.isRecovery) + assertEquals(GroupLifecycleState.STABLE, pass.lifecycleWhileRunning(GroupLifecycleState.STABLE)) + } + + @Test + fun deferredCommitExpiryUsesTheLiveTipNotThePassBase() { + // Expiry deliberately tracks the live canonical tip so obsolete input + // ages out as state advances; branch ELIGIBILITY uses the frozen + // pass_base_epoch instead so an open pass cannot move its own horizon. + assertFalse(ConvergencePass.isDeferredCommitStale(canonicalTipEpoch = 10, commitSourceEpoch = 5, policy = policy)) + assertTrue(ConvergencePass.isDeferredCommitStale(canonicalTipEpoch = 11, commitSourceEpoch = 5, policy = policy)) + // A commit from ahead of the tip is never stale — it is waiting for its parent. + assertFalse(ConvergencePass.isDeferredCommitStale(canonicalTipEpoch = 10, commitSourceEpoch = 20, policy = policy)) + } + + @Test + fun timersDoNotAffectWhatIsSelected() { + // Splitting the same inputs across two passes must reach the same + // answer as resolving them in one: the timers decide when work happens, + // never what it decides. + val a = CandidateBranch(8, 11, 3, TipPriority.ORDINARY, ByteArray(32) { 1 }, ByteArray(32) { 2 }, emptyMap()) + val b = CandidateBranch(8, 12, 4, TipPriority.ORDINARY, ByteArray(32) { 3 }, ByteArray(32) { 4 }, emptyMap()) + + val together = BranchSelector.select(listOf(a, b), passBaseEpoch = 8, policy = policy) + val split = BranchSelector.select(listOf(b), passBaseEpoch = 8, policy = policy) + assertEquals(together, split, "the longer branch wins whether or not it shared a pass") + } +} From a9b38b0c52f19541bfab17422f9b7f0206ed790c Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 17:12:43 +0000 Subject: [PATCH 09/79] feat(marmot): build current-profile groups and KeyPackages, not just parse them MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Every previous change read the reference. This one writes, which is the half that decides whether MDK accepts anything we author. CurrentProfileGroupFactory assembles current-profile leaves, KeyPackages and groups. The order it enforces is forced by the protocol rather than chosen: a leaf must carry an account identity proof over its OWN MLS signature key, and only an account signer — possibly a remote bunker or an external app — can produce that proof. MLS leaf construction is synchronous and normally generates its signature keypair internally, so the proof cannot be attached afterwards by code that only sees a finished leaf. The keypair is therefore generated first, authorized, and only then built into a leaf. MlsGroup.create and createKeyPackage gained leaf-extension, capability and required-capability parameters to allow it. Writing the producer side immediately found two bugs that the reader-side tests could not have found: buildLeafNode accepted a leaf-extensions parameter and then wrote extensions = emptyList(). Every leaf we built would have silently dropped its identity proof — the exact component that makes a group classifiable at all. Fresh KeyPackages carried Lifetime(0, Long.MAX_VALUE). That fails the bound Stage 4 had just started enforcing, so every KeyPackage we published would have been rejected by any conformant peer, including by us. Now it spans now-1h to +84 days: the backdate gives a peer with a slow clock a window where the package is already valid, and 84 days leaves the spec's whole one-hour skew allowance as headroom rather than sitting on the limit. Six tests, including the two directions that matter for interop: a KeyPackage we build has the same component set, capabilities and dictionary layout as the one the OpenMLS fork emits, and a KeyPackage the fork authored can be added to a group we created. Full quartz jvmTest: 4,600 tests, 0 failures. commons and cli compile. What this does NOT do, recorded in the plan rather than implied: the app layer still creates MIP-era groups — nothing in commons, amethyst, desktopApp or cli calls this factory yet. The Quartz half is ready and tested; the wiring is not written. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- quartz/plans/2026-09-08-marmot-spec-resync.md | 36 ++- .../CurrentProfileGroupFactory.kt | 184 ++++++++++++++ .../quartz/marmot/mls/group/MlsGroup.kt | 106 +++++++- .../CurrentProfileGroupFactoryTest.kt | 240 ++++++++++++++++++ 4 files changed, 557 insertions(+), 9 deletions(-) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index e80529537b..7610d96c0f 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -1,7 +1,7 @@ # Marmot: resync against the adopted spec and current MDK -Status: Stages 0-4 done. Stages 5-6 have their protocol cores landed; the pass scheduler, -candidate-graph replay and Stage 7 remain. +Status: Stages 0-6 landed in Quartz (selection + bounded pass; candidate-graph replay and +the inbound wiring remain). The app layer still creates MIP-era groups. Stage 7 open. Sources checked on 2026-09-08: @@ -475,3 +475,35 @@ Consequences to plan around, since they are now ours to carry: how we would drift again. - Byte-level conformance is the only thing that keeps us honest, so every stage below lands with vectors from `marmot-profile-gen`, not just unit tests written against our own reading. + +## Producing current-profile groups + +`CurrentProfileGroupFactory` builds current-profile leaves, KeyPackages and groups. The order +it enforces is not stylistic: a leaf must carry an identity proof over its OWN signature key, +and only an account signer — possibly a remote bunker — can produce that proof, so the keypair +is generated first, authorized, and only then built into a leaf. A proof cannot be added +afterwards by code that only sees a finished leaf. `MlsGroup.create` / `createKeyPackage` gained +leaf-extension, capability and required-capability parameters to make that possible. + +Writing the producer side immediately found two bugs the reader-side tests could not: + +1. `buildLeafNode` accepted leaf extensions and then wrote `extensions = emptyList()`. Every + leaf we built would have silently dropped its identity proof. +2. Fresh KeyPackages carried `Lifetime(0, Long.MAX_VALUE)`. That fails the bound Stage 4 had + just started enforcing, so every KeyPackage we published would have been rejected by any + conformant peer — including, once Stage 4 landed, by us. Now `now - 1h` to `+84 days`. + +## What is NOT done + +- **The app layer still creates MIP-era groups.** `MarmotManager.createGroup` takes a + `MarmotGroupData`; nothing in `commons`, `amethyst`, `desktopApp` or `cli` calls + `CurrentProfileGroupFactory` yet. The Quartz half is ready and tested; the wiring is not + written. +- **Convergence is not on the inbound path.** `BranchSelector` and `ConvergencePass` exist and + are tested, but `MarmotInboundProcessor` still routes commits through `CommitOrdering`'s + superseded timestamp/event-id tiebreak. What is missing between them is the candidate-graph + builder that replays MLS bytes against retained states. +- **The lifecycle states gate nothing.** `GroupLifecycleState` is a correct model with no + enforcement behind it. +- Stage 7: durability/restart conformance, app payload kinds `1009`/`1210`, encrypted-media v2, + the push owner proof (kind `451`). diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt new file mode 100644 index 0000000000..08a287c417 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt @@ -0,0 +1,184 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.appComponents.accountIdentityProof.AccountIdentityProofV2 +import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite +import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary +import com.vitorpamplona.quartz.marmot.mls.components.ComponentData +import com.vitorpamplona.quartz.marmot.mls.components.ComponentsList +import com.vitorpamplona.quartz.marmot.mls.crypto.Ed25519 +import com.vitorpamplona.quartz.marmot.mls.crypto.Ed25519KeyPair +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroup +import com.vitorpamplona.quartz.marmot.mls.messages.KeyPackageBundle +import com.vitorpamplona.quartz.marmot.mls.tree.Extension +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner + +/** + * Builds current-profile Marmot leaves, KeyPackages and groups. + * + * ## Why this exists as a factory + * + * A current-profile leaf must carry `marmot.member.account-identity-proof.v2` + * over its OWN MLS signature key, and only the account key can produce that + * proof — through a signer that may be a remote bunker or an external app. MLS + * leaf construction is synchronous and normally generates its signature keypair + * internally, so the proof cannot be added afterwards by code that only sees a + * finished leaf. + * + * The order is therefore fixed: generate the leaf keypair, ask the account + * signer to authorize its public half, then build the leaf around both. Every + * function here follows it. + */ +object CurrentProfileGroupFactory { + /** + * The component ids this client supports, advertised in every leaf. + * + * `0x0001` is in the list because a client advertising `app_data_dictionary` + * must understand and advertise `app_components` itself. + */ + val SUPPORTED_COMPONENTS: List = + listOf( + ComponentsList.APP_COMPONENTS_ID, + AppComponentIds.GROUP_PROFILE_V1, + AppComponentIds.GROUP_BLOSSOM_IMAGE_V1, + AppComponentIds.ADMIN_POLICY_V1, + AppComponentIds.NOSTR_ROUTING_V1, + AppComponentIds.MESSAGE_RETENTION_V1, + AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2, + AppComponentIds.GROUP_LIFECYCLE_V1, + ) + + /** A leaf keypair plus the account proof authorizing it. */ + class LeafIdentity( + val signatureKeyPair: Ed25519KeyPair, + val leafExtensions: List, + ) + + /** + * Generate a leaf signature keypair and have [signer] authorize it. + * + * The returned leaf dictionary carries the supported-component list, an + * explicit EMPTY `safe_aad` list (understood, nothing contributed — required + * of anyone advertising `app_data_dictionary`), and the 104-byte proof. + */ + suspend fun newLeafIdentity( + signer: NostrSigner, + ciphersuite: MlsCiphersuite = MlsCiphersuite.DEFAULT, + supportedComponents: List = SUPPORTED_COMPONENTS, + ): LeafIdentity { + val keyPair = Ed25519.generateKeyPair() + val proof = AccountIdentityProofV2.create(signer, ciphersuite, keyPair.publicKey) + + val dictionary = + AppDataDictionary( + listOf( + ComponentData(ComponentsList.APP_COMPONENTS_ID, ComponentsList.encode(supportedComponents)), + ComponentData(ComponentsList.SAFE_AAD_ID, ComponentsList.encode(emptyList())), + ComponentData(AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2, proof.encode()), + ), + ) + return LeafIdentity(keyPair, listOf(dictionary.toExtension())) + } + + /** + * Publish-ready current-profile KeyPackage for [signer]'s account. + * + * [lastResort] adds the empty-data `last_resort_key_package` component to + * the KEYPACKAGE-level dictionary — a separate dictionary from the embedded + * LeafNode's, and a component rather than the extension type the MIP-era + * profile used. + */ + suspend fun createKeyPackage( + signer: NostrSigner, + lastResort: Boolean = true, + ciphersuite: MlsCiphersuite = MlsCiphersuite.DEFAULT, + ): KeyPackageBundle { + val identity = signer.pubKey.hexToByteArray() + val leaf = newLeafIdentity(signer, ciphersuite) + + val keyPackageExtensions = + if (lastResort) { + listOf( + AppDataDictionary( + listOf(ComponentData(AppComponentIds.LAST_RESORT_KEY_PACKAGE, ByteArray(0))), + ).toExtension(), + ) + } else { + emptyList() + } + + // A throwaway group only as a factory for the bundle; nothing about it + // survives the call. + return MlsGroup + .create(identity) + .createKeyPackage( + identity = identity, + signingKey = leaf.signatureKeyPair.privateKey, + leafSignatureKeyPair = leaf.signatureKeyPair, + leafExtensions = leaf.leafExtensions, + capabilities = MlsGroup.currentProfileLeafCapabilities(), + keyPackageExtensions = keyPackageExtensions, + ) + } + + /** + * Create a current-profile group with [signer]'s account as its sole + * initial admin. + * + * Epoch 0 carries `required_capabilities` of extension `0x0006` and + * proposal `0x0008`, and a GroupContext dictionary with the required + * component list plus admin policy, routing, and the rest of the initial + * state. The creator's leaf carries its own dictionary with the identity + * proof. + */ + suspend fun createGroup( + signer: NostrSigner, + nostrGroupId: ByteArray, + relays: List, + profile: GroupProfileV1? = null, + additionalAdmins: List = emptyList(), + retention: MessageRetentionV1? = null, + ciphersuite: MlsCiphersuite = MlsCiphersuite.DEFAULT, + ): MlsGroup { + val identity = signer.pubKey.hexToByteArray() + val leaf = newLeafIdentity(signer, ciphersuite) + + val dictionary = + MarmotGroupState.buildDictionary( + adminPolicy = AdminPolicyV1.of(listOf(identity) + additionalAdmins), + routing = NostrRoutingV1.of(nostrGroupId, relays), + profile = profile, + retention = retention, + lifecycle = GroupLifecycleV1.ACTIVE, + ) + + return MlsGroup.create( + identity = identity, + signingKey = leaf.signatureKeyPair.privateKey, + initialExtensions = listOf(dictionary.toExtension()), + leafExtensions = leaf.leafExtensions, + capabilities = MlsGroup.currentProfileLeafCapabilities(), + requiredCapabilities = MlsGroup.buildCurrentProfileRequiredCapabilitiesExtension(), + ) + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index ff3b4d4b14..e48c0f3771 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -340,10 +340,24 @@ class MlsGroup private constructor( fun createKeyPackage( identity: ByteArray, signingKey: ByteArray, + /** + * The leaf signature keypair to use, when the caller had to generate it + * up front. + * + * A current-profile leaf must carry an account identity proof over its + * OWN signature key, and that proof is produced by an account signer + * that may be remote. So the caller generates the keypair, signs the + * proof against its public half, and hands both back here — the proof + * cannot be computed after the fact by code that only sees the leaf. + */ + leafSignatureKeyPair: com.vitorpamplona.quartz.marmot.mls.crypto.Ed25519KeyPair? = null, + leafExtensions: List = emptyList(), + capabilities: Capabilities = marmotLeafCapabilities(), + keyPackageExtensions: List = emptyList(), ): KeyPackageBundle { val initKp = X25519.generateKeyPair() val encKp = X25519.generateKeyPair() - val sigKp = Ed25519.generateKeyPair() + val sigKp = leafSignatureKeyPair ?: Ed25519.generateKeyPair() val leafNode = buildLeafNode( @@ -352,12 +366,15 @@ class MlsGroup private constructor( identity = identity, source = LeafNodeSource.KEY_PACKAGE, signingKey = sigKp.privateKey, + capabilities = capabilities, + leafExtensions = leafExtensions, ) val unsigned = MlsKeyPackage( initKey = initKp.publicKey, leafNode = leafNode, + extensions = keyPackageExtensions, signature = ByteArray(0), ) val kp = @@ -2891,6 +2908,19 @@ class MlsGroup private constructor( /** MLS self_remove proposal type (MIP-00 / MIP-03). */ private const val SELF_REMOVE_PROPOSAL_TYPE = 0x000A + /** MLS extensions draft `app_data_update` proposal type. */ + private const val APP_DATA_UPDATE_PROPOSAL_TYPE = 0x0008 + + /** How far back a fresh KeyPackage LeafNode's `not_before` is set. */ + private const val LIFETIME_SKEW_SECONDS = 3_600L + + /** + * 84 days. The spec's ceiling is 84 days plus one hour of skew, so this + * leaves the whole skew allowance as headroom rather than sitting + * exactly on the limit. + */ + private const val LIFETIME_SPAN_SECONDS = 84L * 24 * 60 * 60 + /** Marmot Group Data Extension type (MIP-01). */ private const val MARMOT_GROUP_DATA_EXTENSION_TYPE = 0xF2EE @@ -3128,13 +3158,62 @@ class MlsGroup private constructor( proposals = listOf(SELF_REMOVE_PROPOSAL_TYPE), ) + /** + * Leaf capabilities for the current profile. + * + * RFC 9420 §7.2 forbids advertising DEFAULT extension types, so only + * the draft `app_data_dictionary` extension and the `app_data_update` + * proposal appear — `required_capabilities` support is implicit. + */ + fun currentProfileLeafCapabilities(): Capabilities = + Capabilities( + extensions = listOf(AppDataDictionary.EXTENSION_TYPE), + proposals = listOf(APP_DATA_UPDATE_PROPOSAL_TYPE, SELF_REMOVE_PROPOSAL_TYPE), + ) + + /** + * `required_capabilities` for a new current-profile group: extension + * `0x0006` and proposal `0x0008`. + * + * The Marmot components a group requires are negotiated in the + * upstream `app_components` component INSIDE the dictionary, not here — + * MLS `RequiredCapabilities` carries only MLS-level primitives. + */ + fun buildCurrentProfileRequiredCapabilitiesExtension(): Extension { + val writer = TlsWriter() + val exts = TlsWriter() + exts.putUint16(AppDataDictionary.EXTENSION_TYPE) + writer.putOpaqueVarInt(exts.toByteArray()) + val props = TlsWriter() + props.putUint16(APP_DATA_UPDATE_PROPOSAL_TYPE) + writer.putOpaqueVarInt(props.toByteArray()) + val creds = TlsWriter() + creds.putUint16(Credential.CREDENTIAL_TYPE_BASIC) + writer.putOpaqueVarInt(creds.toByteArray()) + return Extension(REQUIRED_CAPABILITIES_EXTENSION_TYPE, writer.toByteArray()) + } + /** * Create a new MLS group with a single member (the creator). */ fun create( identity: ByteArray, signingKey: ByteArray? = null, - initialExtensions: List = emptyList(), + initialExtensions: List = emptyList(), + /** + * LeafNode extensions for the creator's own leaf. A current-profile + * group MUST put its `app_data_dictionary` here, carrying the + * account identity proof — the proof is leaf-only and can never be + * added later by a proposal. + */ + leafExtensions: List = emptyList(), + capabilities: Capabilities = marmotLeafCapabilities(), + /** + * The `required_capabilities` extension for epoch 0. Defaults to + * the MIP-era set; a current-profile group passes + * [buildCurrentProfileRequiredCapabilitiesExtension]. + */ + requiredCapabilities: Extension = buildMarmotRequiredCapabilitiesExtension(), ): MlsGroup { val sigKp = signingKey?.let { key -> @@ -3153,6 +3232,8 @@ class MlsGroup private constructor( identity = identity, source = LeafNodeSource.KEY_PACKAGE, signingKey = sigKp.privateKey, + capabilities = capabilities, + leafExtensions = leafExtensions, ) val tree = RatchetTree(1) @@ -3163,7 +3244,7 @@ class MlsGroup private constructor( // bake into epoch 0 (e.g. the MIP-01 MarmotGroupData extension so // new peers who join later can see the group name without first // decrypting a pre-membership bootstrap commit — see MIP-03). - val baseExtensions = listOf(buildMarmotRequiredCapabilitiesExtension()) + val baseExtensions = listOf(requiredCapabilities) val groupContext = GroupContext( groupId = groupId, @@ -3725,24 +3806,35 @@ class MlsGroup private constructor( groupId: ByteArray? = null, leafIndex: Int? = null, parentHash: ByteArray? = null, + capabilities: Capabilities = marmotLeafCapabilities(), + leafExtensions: List = emptyList(), ): LeafNode { val unsigned = LeafNode( encryptionKey = encryptionKey, signatureKey = signatureKey, credential = Credential.Basic(identity), - // Advertise MIP-01/MIP-03 required capabilities so we can be + // Advertise the profile's required capabilities so we can be // added to compliant groups that mark them as required. - capabilities = marmotLeafCapabilities(), + capabilities = capabilities, leafNodeSource = source, lifetime = if (source == LeafNodeSource.KEY_PACKAGE) { - Lifetime(0, Long.MAX_VALUE) + // A real, bounded window. `Lifetime(0, Long.MAX_VALUE)` + // used to go here, which any receiver enforcing + // `foundation/key-packages.md` rejects outright: the + // extension must be current AND span at most + // 7,261,200s (84 days + an hour of clock skew). + // The one-hour backdate gives a peer with a slow + // clock a window in which the package is already + // valid. + val notBefore = TimeUtils.now() - LIFETIME_SKEW_SECONDS + Lifetime(notBefore, notBefore + LIFETIME_SPAN_SECONDS) } else { null }, parentHash = parentHash, - extensions = emptyList(), + extensions = leafExtensions, signature = ByteArray(0), // Placeholder ) diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt new file mode 100644 index 0000000000..3e63df00a8 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt @@ -0,0 +1,240 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.TestResourceLoader +import com.vitorpamplona.quartz.marmot.appComponents.accountIdentityProof.AccountIdentityProofV2 +import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary +import com.vitorpamplona.quartz.marmot.mls.components.ComponentsList +import com.vitorpamplona.quartz.marmot.mls.framing.MlsMessage +import com.vitorpamplona.quartz.marmot.mls.messages.MlsKeyPackage +import com.vitorpamplona.quartz.marmot.mls.tree.Credential +import com.vitorpamplona.quartz.nip01Core.core.JsonMapper +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlinx.serialization.SerialName +import kotlinx.serialization.Serializable +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertNotNull +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * Groups and KeyPackages we build ourselves, checked against the shape the + * OpenMLS fork produces in `marmot-current-profile.json`. + * + * Every previous test read the reference. This one writes, which is the half + * that decides whether MDK will accept anything we author. + */ +class CurrentProfileGroupFactoryTest { + @Serializable + private data class Joiner( + @SerialName("key_package") val keyPackage: String, + @SerialName("key_package_dictionary") val keyPackageDictionary: Map, + @SerialName("leaf_dictionary") val leafDictionary: Map, + ) + + @Serializable + private data class GroupStateJson( + @SerialName("epoch0_group_context_dictionary") val epoch0: Map, + ) + + @Serializable + private data class Vector( + val joiner: Joiner, + @SerialName("group_state") val groupState: GroupStateJson, + ) + + private val vector: Vector = + JsonMapper.jsonInstance.decodeFromString( + TestResourceLoader().loadString("mls/marmot-current-profile.json"), + ) + + private val signer = NostrSignerInternal(KeyPair()) + + @Test + fun ourKeyPackageMatchesTheReferenceShape() = + runBlocking { + val bundle = CurrentProfileGroupFactory.createKeyPackage(signer) + val kp = bundle.keyPackage + + assertTrue(kp.verifySignature(), "our KeyPackage must verify") + + // Same leaf dictionary component set as the reference produces. + val leafDictionary = assertNotNull(AppDataDictionary.fromExtensions(kp.leafNode.extensions)) + assertEquals( + vector.joiner.leafDictionary.keys + .map { it.removePrefix("0x").toInt(16) } + .sorted(), + leafDictionary.componentIds, + ) + + // Last resort lives in the KeyPackage's own dictionary, as a + // component with empty data — not as an MLS extension type. + val kpDictionary = assertNotNull(AppDataDictionary.fromExtensions(kp.extensions)) + assertEquals( + vector.joiner.keyPackageDictionary.keys + .map { it.removePrefix("0x").toInt(16) }, + kpDictionary.componentIds, + ) + assertContentEquals(ByteArray(0), kpDictionary[AppComponentIds.LAST_RESORT_KEY_PACKAGE]) + + // Capabilities advertise exactly the draft extension and proposals. + assertEquals(listOf(AppDataDictionary.EXTENSION_TYPE), kp.leafNode.capabilities.extensions) + assertTrue( + kp.leafNode.capabilities.proposals + .contains(0x0008), + ) + assertTrue( + kp.leafNode.capabilities.proposals + .contains(0x000a), + ) + } + + @Test + fun ourLeafProofValidatesAgainstItsOwnLeaf() = + runBlocking { + val kp = CurrentProfileGroupFactory.createKeyPackage(signer).keyPackage + val dictionary = AppDataDictionary.fromExtensions(kp.leafNode.extensions)!! + val identity = (kp.leafNode.credential as Credential.Basic).identity + + assertEquals(signer.pubKey, identity.toHexKey()) + assertEquals( + AccountIdentityProofV2.Result.VALID, + AccountIdentityProofV2.validate( + componentData = dictionary[AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2], + credentialIdentity = identity, + mlsSignatureKey = kp.leafNode.signatureKey, + ciphersuite = MlsCiphersuite.DEFAULT, + ), + "the proof must bind this leaf's own signature key", + ) + + // Advertised support and carried data are separate requirements. + val supported = ComponentsList.decode(dictionary[ComponentsList.APP_COMPONENTS_ID]!!) + assertTrue(supported.contains(AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2)) + assertNotNull(dictionary[ComponentsList.SAFE_AAD_ID], "safe_aad is advertised explicitly") + } + + @Test + fun everyKeyPackageGetsAFreshLeafKeyAndProof() = + runBlocking { + val a = CurrentProfileGroupFactory.createKeyPackage(signer).keyPackage + val b = CurrentProfileGroupFactory.createKeyPackage(signer).keyPackage + assertTrue(!a.leafNode.signatureKey.contentEquals(b.leafNode.signatureKey)) + + // A proof authorizes ONE leaf key, so it must not carry over. + val proofA = AppDataDictionary.fromExtensions(a.leafNode.extensions)!![AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2] + assertEquals( + AccountIdentityProofV2.Result.BAD_SIGNATURE, + AccountIdentityProofV2.validate( + componentData = proofA, + credentialIdentity = signer.pubKey.hexToByteArray(), + mlsSignatureKey = b.leafNode.signatureKey, + ciphersuite = MlsCiphersuite.DEFAULT, + ), + ) + } + + @Test + fun ourGroupContextMatchesTheReferenceComponentSet() = + runBlocking { + val group = + CurrentProfileGroupFactory.createGroup( + signer = signer, + nostrGroupId = ByteArray(32) { 0x5a }, + relays = listOf("wss://relay.damus.io", "wss://nos.lol"), + profile = GroupProfileV1("Marmot interop", "current-profile fixture"), + ) + + val dictionary = group.appDataDictionary() + assertEquals( + vector.groupState.epoch0.keys + .map { it.removePrefix("0x").toInt(16) } + .sorted(), + dictionary.componentIds, + "same GroupContext components as the reference emits", + ) + + val state = group.currentGroupState() + assertTrue(state.isCurrentProfile) + assertEquals("Marmot interop", state.profile?.name) + assertEquals(GroupLifecycleV1.ACTIVE, state.lifecycle) + assertEquals(listOf(signer.pubKey), state.adminPolicy?.adminHexKeys) + assertEquals(listOf("wss://nos.lol", "wss://relay.damus.io"), state.routing?.relays) + + // 0x8009 is required but leaf-only: it must NOT appear in the + // GroupContext dictionary. + assertTrue(state.requires(AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2)) + assertNull(dictionary[AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2]) + } + + @Test + fun theCreatorIsTheSoleAdminAndCanGovern() = + runBlocking { + val group = + CurrentProfileGroupFactory.createGroup( + signer = signer, + nostrGroupId = ByteArray(32) { 0x5a }, + relays = listOf("wss://relay.example"), + ) + + assertEquals(setOf(signer.pubKey), group.currentAdminIdentities()) + assertTrue(group.isLocalAdmin()) + + // An admin-gated component change goes through. + group.proposeAppDataUpdate( + AppComponentIds.GROUP_PROFILE_V1, + GroupProfileV1("renamed", "").encode(), + ) + group.commit() + assertEquals("renamed", group.currentGroupState().profile?.name) + } + + @Test + fun weCanAddAReferenceGeneratedKeyPackageToOurOwnGroup() = + runBlocking { + // The end-to-end direction that matters for interop: a KeyPackage + // authored by the OpenMLS fork, added to a group we built. + val group = + CurrentProfileGroupFactory.createGroup( + signer = signer, + nostrGroupId = ByteArray(32) { 0x5a }, + relays = listOf("wss://relay.example"), + ) + + val message = MlsMessage.decodeTls(TlsReader(vector.joiner.keyPackage.hexToByteArray())) + val theirs = MlsKeyPackage.decodeTls(TlsReader(message.payload)) + + val result = group.addMember(theirs.toTlsBytes()) + assertTrue(result.commitBytes.isNotEmpty()) + assertNotNull(result.welcomeBytes) + assertEquals(2, group.memberCount) + assertEquals(1L, group.epoch) + } +} From ce3f87f5912fec91f9c25807174002204ed5060e Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 17:44:38 +0000 Subject: [PATCH 10/79] feat(marmot): derive candidate branches by replaying MLS bytes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Convergence had a selector with nothing to select over. This adds the candidate-graph builder that turns retained group states plus a bag of inbound commits into the branches `BranchSelector` compares. The central rule is that parentage is DERIVED, never declared. A commit carries no parent pointer, and it must not be believed if it did, so the builder finds a parent by asking which retained state the commit's membership tag authenticates against. That makes it a fixed point rather than a sweep: replaying a commit produces a state that may be the parent of a commit nothing could place a moment earlier, so it keeps sweeping the unplaced set until a pass produces no new edge. `CandidateStateEngine` splits the graph algebra from MLS so each half is testable on its own terms; `MlsCandidateStateEngine` is the real adapter. A state id is SHA-256 over the serialized GroupContext, not the epoch number — two states can share an epoch number and be different states, which is exactly what a fork is. Every trial replay restores a fresh group from the retained snapshot, because a candidate parent gets tried by several competing commits and "advance it then roll it back" works right up until an exception escapes halfway through. Dispositions keep "I cannot place this" apart from "I caught you misbehaving": an unauthorized commit whose parent IS known is terminal `authorization_failed`, while a commit nothing authenticates is `deferred`, and only `stale` once the live canonical tip passes the rollback horizon. A resulting state that breaks a component invariant produces no edge at all, so convergence can never select it. `MlsGroup` grows three non-mutating helpers for this — `resolveCommitProposals`, `isCommitAuthorized`, `isSelfOnlyCommit` — reusing the same gates the local commit path runs, so an inbound commit and one we authored are held to one rule instead of two that drift. Writing the real-MLS test found a bug in the builder: an unattributable tip was zero-filled into a 32-byte committer, which would have handed it the lowest possible account pubkey and won it a step-5 tie-break it never earned. Such a tip is now dropped. Tests: 12 over a fake engine for the graph algebra, 9 over real MLS groups and a genuine same-epoch fork. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- quartz/plans/2026-09-08-marmot-spec-resync.md | 59 ++- .../quartz/marmot/mls/group/MlsGroup.kt | 83 +++- .../protocolCore/CandidateGraphBuilder.kt | 361 +++++++++++++++++ .../protocolCore/MlsCandidateStateEngine.kt | 170 ++++++++ .../protocolCore/CandidateGraphBuilderTest.kt | 378 ++++++++++++++++++ .../protocolCore/MlsCandidateGraphTest.kt | 342 ++++++++++++++++ 6 files changed, 1379 insertions(+), 14 deletions(-) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateGraphBuilder.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MlsCandidateStateEngine.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateGraphBuilderTest.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MlsCandidateGraphTest.kt diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index 7610d96c0f..41605b3ab1 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -1,7 +1,7 @@ # Marmot: resync against the adopted spec and current MDK -Status: Stages 0-6 landed in Quartz (selection + bounded pass; candidate-graph replay and -the inbound wiring remain). The app layer still creates MIP-era groups. Stage 7 open. +Status: Stages 0-6 landed in Quartz (selection, bounded pass, and candidate-graph replay; +the inbound wiring remains). The app layer still creates MIP-era groups. Stage 7 open. Sources checked on 2026-09-08: @@ -450,11 +450,47 @@ is the same pass, and restarting would let a trickle of forks hold it open forev commit expiry tracks the LIVE canonical tip while branch eligibility uses the FROZEN `pass_base_epoch`; using one epoch for both would let an open pass move its own horizon. -**Still open:** the candidate-graph builder that replays MLS bytes against retained states, and -wiring the pass + selector into `MarmotInboundProcessor` so inbound commits actually flow -through them. `CommitOrdering`'s transport-metadata tiebreak therefore still stands — it is only -safe to delete once something replaces it end to end, and a selector with no graph feeding it -does not. +`CandidateGraphBuilder` builds the branches the selector compares, over a +`CandidateStateEngine` so the graph algebra is testable without MLS and the MLS adapter +(`MlsCandidateStateEngine`) is testable on real forks. + +The things that make it non-obvious, all of them tested: + +- **Parentage is derived, never declared.** A commit carries no parent pointer, and it must not + be believed if it did. The builder finds a parent by asking which retained state the commit's + membership tag authenticates against. `MlsCandidateGraphTest` builds a genuine same-epoch fork + (two Alices restored from one snapshot, each adding a different member) and both commits land + on the same retained parent. +- **A state id is `SHA-256` over the serialized GroupContext, not the epoch number.** Two states + can share an epoch number and be different states — that is what a fork IS — and the + GroupContext covers the tree and transcript hashes, so it separates them. +- **It is a fixed point, not a sweep.** Replaying a commit produces a state that may be the + parent of a commit nothing could place a moment earlier, so it keeps sweeping the unplaced set + until a pass produces no new edge. A two-commit chain offered child-first still rebuilds as one + branch of depth 2. +- **"I cannot place this" is not "I caught you misbehaving."** An unauthorized commit whose + parent IS known is terminal `authorization_failed`; a commit nothing authenticates is + `deferred`, and only `stale` once the LIVE canonical tip has passed the rollback horizon. A + tampered commit therefore comes out `deferred`, never `authorization_failed`. +- **An invalid resulting state produces no edge at all**, so convergence cannot select it. + Validation is "decode the component set" — every decoder is strict, so malformed or unsorted + bytes throw rather than yielding a lenient value. +- **An unattributable tip is dropped, not zero-filled.** Comparison step 5 breaks ties on the tip + committer's account pubkey; substituting `ByteArray(32)` would hand such a tip the lowest + possible key and win it a tie-break it never earned. A group whose leaves are not account + pubkeys simply produces no selectable branch. +- Every trial replay restores a FRESH group from the retained snapshot, because a candidate + parent gets tried by several competing commits and "advance it then roll it back" works until + an exception escapes halfway through. + +`MlsGroup` grew three non-mutating helpers for this — `resolveCommitProposals`, +`isCommitAuthorized`, `isSelfOnlyCommit` — reusing the same `enforceAuthorizedProposalSet` / +`enforceNoAdminDepletion` gates the local commit path runs, so an inbound commit and one we +authored are held to one rule rather than two that drift. + +**Still open:** wiring the pass + selector + graph into `MarmotInboundProcessor` so inbound +commits actually flow through them. `CommitOrdering`'s transport-metadata tiebreak therefore +still stands — it is only safe to delete once something replaces it end to end. **Stage 7 — durability/restart conformance, app payload kinds (1009/1210), encrypted-media v2, push owner proof.** @@ -499,10 +535,11 @@ Writing the producer side immediately found two bugs the reader-side tests could `MarmotGroupData`; nothing in `commons`, `amethyst`, `desktopApp` or `cli` calls `CurrentProfileGroupFactory` yet. The Quartz half is ready and tested; the wiring is not written. -- **Convergence is not on the inbound path.** `BranchSelector` and `ConvergencePass` exist and - are tested, but `MarmotInboundProcessor` still routes commits through `CommitOrdering`'s - superseded timestamp/event-id tiebreak. What is missing between them is the candidate-graph - builder that replays MLS bytes against retained states. +- **Convergence is not on the inbound path.** `CandidateGraphBuilder`, `BranchSelector` and + `ConvergencePass` exist and are tested end to end against real MLS forks, but + `MarmotInboundProcessor` still routes commits through `CommitOrdering`'s superseded + timestamp/event-id tiebreak. What is missing is only the wiring: feeding retained states and + inbound commits into a pass, and applying the selected branch. - **The lifecycle states gate nothing.** `GroupLifecycleState` is a correct model with no enforcement behind it. - Stage 7: durability/restart conformance, app payload kinds `1009`/`1210`, encrypted-media v2, diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index e48c0f3771..d974b0937d 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -350,7 +350,7 @@ class MlsGroup private constructor( * proof against its public half, and hands both back here — the proof * cannot be computed after the fact by code that only sees the leaf. */ - leafSignatureKeyPair: com.vitorpamplona.quartz.marmot.mls.crypto.Ed25519KeyPair? = null, + leafSignatureKeyPair: Ed25519KeyPair? = null, leafExtensions: List = emptyList(), capabilities: Capabilities = marmotLeafCapabilities(), keyPackageExtensions: List = emptyList(), @@ -2270,6 +2270,84 @@ class MlsGroup private constructor( return constantTimeEquals(expectedTag, membershipTag) } + /** + * Resolve a commit's proposals as THIS state sees them, or null when it + * references a proposal this state does not hold. + * + * Convergence needs this without applying anything: a candidate parent is + * tried by several competing commits, and judging authorization must not + * advance the state being judged against. + */ + fun resolveCommitProposals(pubMsg: PublicMessage): List? { + val commit = + try { + Commit.decodeTls(TlsReader(pubMsg.content)) + } catch (_: Exception) { + return null + } + val resolved = mutableListOf() + for (proposalOrRef in commit.proposals) { + when (proposalOrRef) { + is ProposalOrRef.Inline -> + resolved.add(PendingProposal(proposalOrRef.proposal, pubMsg.sender.leafIndex)) + + is ProposalOrRef.Reference -> { + val match = + pendingProposals.find { pending -> + val refValue = pending.authenticatedContentBytes ?: pending.proposal.toTlsBytes() + MlsCryptoProvider + .refHash("MLS 1.0 Proposal Reference", refValue) + .contentEquals(proposalOrRef.proposalRef) + } ?: return null + resolved.add(match) + } + } + } + return resolved + } + + /** + * Whether [pubMsg]'s committer is authorized to make it against THIS state, + * without applying anything. + * + * Runs the same two gates the apply path runs, so an inbound commit and one + * we authored are held to one rule rather than two that drift. Authorization + * is parent-relative: this answer is only meaningful once MLS + * authentication has already established that this state IS the commit's + * candidate parent. + */ + fun isCommitAuthorized(pubMsg: PublicMessage): Boolean { + val proposals = resolveCommitProposals(pubMsg) ?: return false + return try { + enforceAuthorizedProposalSet(proposals, committerLeafIndex = pubMsg.sender.leafIndex) + enforceNoAdminDepletion(proposals) + true + } catch (_: Exception) { + false + } + } + + /** + * Whether every proposal in [pubMsg] is one its own sender may make without + * admin authority — a self-Update, or SelfRemove of itself. + * + * This is the `ordinary` / `privileged` distinction convergence compares on: + * a commit is `privileged` exactly when its applicable rule REQUIRES an + * active admin, so one an ordinary member could also have made stays + * ordinary even when an admin happened to send it. + */ + fun isSelfOnlyCommit(pubMsg: PublicMessage): Boolean { + val proposals = resolveCommitProposals(pubMsg) ?: return false + if (proposals.isEmpty()) return false + val committer = pubMsg.sender.leafIndex + val allSelfRemove = + proposals.all { it.proposal is Proposal.SelfRemove && it.senderLeafIndex == committer } + if (allSelfRemove) return true + return proposals.size == 1 && + proposals[0].proposal is Proposal.Update && + proposals[0].senderLeafIndex == committer + } + /** * Verify RFC 9420 §6.2 membership_tag on an inbound PublicMessage Commit. * The tag binds the whole `(TBS || FramedContentAuthData)` payload to @@ -3218,8 +3296,7 @@ class MlsGroup private constructor( val sigKp = signingKey?.let { key -> val pub = Ed25519.publicFromPrivate(key) - com.vitorpamplona.quartz.marmot.mls.crypto - .Ed25519KeyPair(key, pub) + Ed25519KeyPair(key, pub) } ?: Ed25519.generateKeyPair() val encKp = X25519.generateKeyPair() diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateGraphBuilder.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateGraphBuilder.kt new file mode 100644 index 0000000000..4ae7ffd7c9 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateGraphBuilder.kt @@ -0,0 +1,361 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +import com.vitorpamplona.quartz.nip01Core.core.HexKey + +/** + * The MLS-side operations the candidate graph needs, as a port. + * + * Kept abstract over the state type `S` for one reason: the graph algorithm is + * about shapes — which commit hangs off which state, where a branch diverged, + * how deep it is — and that logic is worth testing without standing up real MLS + * groups, key schedules and signatures for every case. The production adapter + * is `MlsCandidateStateEngine`. + * + * Every method here is defined in terms of AUTHENTICATED bytes. None of them + * may consult transport metadata. + */ +interface CandidateStateEngine { + /** + * A stable identity for one retained state. + * + * Must distinguish two states that share an epoch NUMBER but are different + * states — that is the whole point of a fork. The spec is explicit that + * "merely sharing an epoch number does not make another retained state an + * alternate candidate parent". + */ + fun stateId(state: S): String + + fun epoch(state: S): Long + + /** + * True when [commit] authenticates against [state] as its candidate parent. + * + * For Marmot this is the RFC 9420 §6.2 membership tag plus the sender + * signature, both of which bind the commit to one specific source-epoch + * state — not to an epoch number. This is what identifies the parent; + * transport metadata never does. + */ + fun authenticatesAgainst( + state: S, + commit: ByteArray, + ): Boolean + + /** + * Replay [commit] against [state], returning the resulting state, or null + * when MLS validation fails. + * + * MUST NOT mutate [state]: a candidate parent is tried by several commits + * and must survive each attempt unchanged. + */ + fun replay( + state: S, + commit: ByteArray, + ): S? + + /** + * The authenticated Marmot account identity of [commit]'s committer, + * resolved through [parent]'s tree. + * + * Resolved against the PARENT because that is the state whose leaves the + * commit was authenticated against. + */ + fun committerIdentity( + parent: S, + commit: ByteArray, + ): ByteArray? + + /** + * Whether the committer is authorized against [parent]'s policy. + * + * Authorization is parent-relative and is only evaluated once + * [authenticatesAgainst] has already identified the parent. Failing this + * against a state whose MLS authentication did NOT match is not an + * authorization failure at all and must not reject the commit. + */ + fun isAuthorized( + parent: S, + commit: ByteArray, + ): Boolean + + /** + * The commit's authorization class, from the rule that applies to it — + * `privileged` exactly when that rule requires an active admin. + */ + fun tipPriority( + parent: S, + commit: ByteArray, + ): TipPriority + + /** + * Whether [resulting] satisfies Marmot's cross-component invariants. + * + * An edge whose resulting state fails these MUST NOT be created, so that + * convergence can never select an invalid transition. + */ + fun resultingStateIsValid(resulting: S): Boolean + + /** `SHA-256` over the commit's MLS bytes — its `commit_digest`. */ + fun commitDigest(commit: ByteArray): ByteArray +} + +/** One commit offered to the graph, with a stable id for reporting dispositions. */ +class CandidateCommit( + val id: HexKey, + val bytes: ByteArray, + /** + * The epoch the commit's MLS handshake authenticates as its source. + * + * Read from the MLS message, never from transport. Used for + * deferred-commit expiry before any parent is known. + */ + val sourceEpoch: Long, +) + +/** + * An app-payload witness: a validated application message that decrypted on a + * branch state, attributed to the MLS-authenticated sender ACCOUNT. + */ +class WitnessObservation( + /** The state the payload decrypted against. */ + val stateId: String, + /** Account identity of the sender, hex. Never a transport pubkey. */ + val senderAccount: HexKey, +) + +/** What the graph decided about one offered commit. */ +class CommitOutcome( + val commitId: HexKey, + val disposition: ConvergenceDisposition, + val category: ConvergenceCategory?, + /** Null unless the commit produced an edge. */ + val resultingStateId: String?, +) + +/** The result of one build pass. */ +class CandidateGraph( + val branches: List, + val outcomes: List, + /** Every state reachable in this graph, by id — canonical and candidate alike. */ + val statesById: Map, +) + +/** + * Builds candidate branches by replaying MLS commit bytes against retained + * group states (`protocol-core/convergence.md`, "Candidate branches"). + * + * ## What makes this non-obvious + * + * A commit does not say what its parent is, and it must not be believed if it + * did — parentage is DERIVED by replaying MLS bytes against retained states. + * So the builder is a fixed-point loop, not a single sweep: replaying a commit + * produces a new state, which may in turn be the parent of a commit that + * nothing could place a moment earlier. It keeps sweeping the unplaced commits + * until a pass produces no new edge. + * + * ## Where a commit ends up + * + * - authenticates, replays, authorized, resulting state valid -> an edge + * - authenticates but is unauthorized -> TERMINAL `authorization_failed`, because + * the parent is now known + * - authenticates but the resulting state breaks a component invariant -> no + * edge is created; convergence must never be able to select it + * - nothing authenticates it -> `deferred`, and only `stale` once the LIVE + * canonical tip has moved past the rollback horizon. Absence of a parent is + * never by itself an authorization failure. + */ +class CandidateGraphBuilder( + private val engine: CandidateStateEngine, + private val policy: ConvergencePolicy = ConvergencePolicy.V1, +) { + /** + * @param retainedStates every retained state at or after the retained anchor, + * including the canonical one. + * @param canonicalStateId the id of the current canonical state; branches are + * measured as divergences from the retained canonical path. + * @param canonicalAncestry canonical state ids from the anchor to the tip, in + * order. A branch's `fork_epoch` is the epoch of the newest canonical + * ancestor it shares. + * @param canonicalTipEpoch the LIVE tip, used for deferred-commit expiry — + * deliberately not [passBaseEpoch], which is frozen for eligibility. + */ + fun build( + retainedStates: List, + canonicalStateId: String, + canonicalAncestry: List, + commits: List, + witnesses: List = emptyList(), + canonicalTipEpoch: Long, + passBaseEpoch: Long, + ): CandidateGraph { + val statesById = LinkedHashMap() + retainedStates.forEach { statesById[engine.stateId(it)] = it } + + // stateId -> the state it was produced from, and by which commit. + val parentOf = HashMap() + val producedBy = HashMap() + val committerOf = HashMap() + val priorityOf = HashMap() + + val outcomes = LinkedHashMap() + var unplaced = commits.toMutableList() + + // Fixed point: a commit that nothing can place today may be placeable + // once another commit's resulting state exists. + while (true) { + val stillUnplaced = mutableListOf() + var progressed = false + + for (commit in unplaced) { + val parent = statesById.values.firstOrNull { engine.authenticatesAgainst(it, commit.bytes) } + if (parent == null) { + stillUnplaced.add(commit) + continue + } + + progressed = true + if (!engine.isAuthorized(parent, commit.bytes)) { + // Terminal: the parent IS known, so this is a real + // authorization failure rather than a missing ancestor. + outcomes[commit.id] = + CommitOutcome( + commit.id, + ConvergenceDisposition.STALE, + ConvergenceCategory.AUTHORIZATION_FAILED, + null, + ) + continue + } + + val resulting = engine.replay(parent, commit.bytes) + if (resulting == null || !engine.resultingStateIsValid(resulting)) { + // No edge is created. A resulting state that breaks a + // component invariant must never become selectable. + outcomes[commit.id] = + CommitOutcome(commit.id, ConvergenceDisposition.STALE, null, null) + continue + } + + val childId = engine.stateId(resulting) + statesById[childId] = resulting + parentOf[childId] = engine.stateId(parent) + producedBy[childId] = commit + engine.committerIdentity(parent, commit.bytes)?.let { committerOf[childId] = it } + priorityOf[childId] = engine.tipPriority(parent, commit.bytes) + outcomes[commit.id] = + CommitOutcome(commit.id, ConvergenceDisposition.ACCEPTED, null, childId) + } + + unplaced = stillUnplaced + if (!progressed || unplaced.isEmpty()) break + } + + for (commit in unplaced) { + val stale = ConvergencePass.isDeferredCommitStale(canonicalTipEpoch, commit.sourceEpoch, policy) + outcomes[commit.id] = + CommitOutcome( + commit.id, + if (stale) ConvergenceDisposition.STALE else ConvergenceDisposition.DEFERRED, + if (stale) ConvergenceCategory.STALE_EPOCH else ConvergenceCategory.MISSING_HISTORY, + null, + ) + } + + val branches = + buildBranches( + statesById = statesById, + parentOf = parentOf, + producedBy = producedBy, + committerOf = committerOf, + priorityOf = priorityOf, + canonicalStateId = canonicalStateId, + canonicalAncestry = canonicalAncestry.toSet(), + witnesses = witnesses, + passBaseEpoch = passBaseEpoch, + ) + + return CandidateGraph(branches, outcomes.values.toList(), statesById) + } + + private fun buildBranches( + statesById: Map, + parentOf: Map, + producedBy: Map, + committerOf: Map, + priorityOf: Map, + canonicalStateId: String, + canonicalAncestry: Set, + witnesses: List, + passBaseEpoch: Long, + ): List { + // A tip is any produced state nothing else was produced from. + val hasChild = parentOf.values.toSet() + val tips = producedBy.keys.filterNot { it in hasChild } + + val witnessesByState = + witnesses.groupBy({ it.stateId }, { it.senderAccount }).mapValues { it.value.toSet() } + + return tips.mapNotNull { tipId -> + // Walk back to the newest ancestor on the retained canonical path. + val path = mutableListOf() + var cursor: String? = tipId + var forkStateId: String? = null + while (cursor != null) { + if (cursor in canonicalAncestry || cursor == canonicalStateId) { + forkStateId = cursor + break + } + path.add(cursor) + cursor = parentOf[cursor] + } + val forkId = forkStateId ?: return@mapNotNull null + if (path.isEmpty()) return@mapNotNull null + + val forkEpoch = engine.epoch(statesById.getValue(forkId)) + val tipEpoch = engine.epoch(statesById.getValue(tipId)) + + // `path` runs tip -> fork; witnesses are keyed per branch epoch. + val perEpoch = HashMap>() + for (stateId in path) { + val epoch = engine.epoch(statesById.getValue(stateId)) + witnessesByState[stateId]?.let { perEpoch.getOrPut(epoch) { mutableSetOf() }.addAll(it) } + } + + // Comparison step 5 breaks a tie on the tip committer's ACCOUNT + // pubkey. A tip we cannot attribute to one has no value to compare, + // and substituting zeros would hand it the lowest possible key — + // winning a tie-break it never earned. Drop it instead: an + // unattributable tip is not selectable. + val tipCommitter = committerOf[tipId]?.takeIf { it.size == 32 } ?: return@mapNotNull null + + CandidateBranch( + forkEpoch = forkEpoch, + tipEpoch = tipEpoch, + rawCommitDepth = path.size.toLong(), + tipPriority = priorityOf[tipId] ?: TipPriority.ORDINARY, + tipCommitter = tipCommitter, + tipDigest = engine.commitDigest(producedBy.getValue(tipId).bytes), + witnessesByEpoch = perEpoch, + ).takeIf { it.isEligible(passBaseEpoch, policy) } + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MlsCandidateStateEngine.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MlsCandidateStateEngine.kt new file mode 100644 index 0000000000..9bd0fa79c9 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MlsCandidateStateEngine.kt @@ -0,0 +1,170 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.framing.ContentType +import com.vitorpamplona.quartz.marmot.mls.framing.MlsMessage +import com.vitorpamplona.quartz.marmot.mls.framing.PublicMessage +import com.vitorpamplona.quartz.marmot.mls.framing.WireFormat +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroup +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupState +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.utils.sha256.sha256 + +/** + * [CandidateStateEngine] backed by real MLS groups. + * + * A retained state is an [MlsGroupState] snapshot. Every trial replay restores + * a FRESH [MlsGroup] from that snapshot and mutates the clone, so a candidate + * parent survives being tried by several competing commits — which is exactly + * the situation a fork is. + * + * Restoring per attempt is not free, but it is the only shape that is + * obviously correct here: `processFramedCommit` advances a group in place, and + * "roll it back afterwards" is the kind of thing that works until the day an + * exception escapes halfway through. + */ +class MlsCandidateStateEngine : CandidateStateEngine { + /** + * Identity of a retained state. + * + * `SHA-256` over the serialized GroupContext, NOT the epoch number. Two + * states can share an epoch number and be different states — that is what a + * fork is — and the GroupContext covers the tree hash and transcript hash, + * so it separates them. + */ + override fun stateId(state: MlsGroupState): String = sha256(state.groupContext.toTlsBytes()).toHexKey() + + override fun epoch(state: MlsGroupState): Long = state.groupContext.epoch + + override fun authenticatesAgainst( + state: MlsGroupState, + commit: ByteArray, + ): Boolean { + val pubMsg = publicMessageOrNull(commit) ?: return false + // Cheap rejects first: a mismatched group or epoch cannot possibly + // authenticate, and skipping the restore keeps a wide retained set + // from costing a group rebuild per candidate. + if (!pubMsg.groupId.contentEquals(state.groupContext.groupId)) return false + if (pubMsg.epoch != state.groupContext.epoch) return false + + return try { + MlsGroup.restore(state).verifyPublicMessageCommitMembershipTag(pubMsg) + } catch (_: Exception) { + false + } + } + + override fun replay( + state: MlsGroupState, + commit: ByteArray, + ): MlsGroupState? = + try { + // A clone, so the retained snapshot is untouched no matter how this + // attempt ends. + val group = MlsGroup.restore(state) + group.processFramedCommit(commit) + group.saveState() + } catch (_: Exception) { + null + } + + override fun committerIdentity( + parent: MlsGroupState, + commit: ByteArray, + ): ByteArray? { + val pubMsg = publicMessageOrNull(commit) ?: return null + return try { + MlsGroup.restore(parent).memberIdentity(pubMsg.sender.leafIndex) + } catch (_: Exception) { + null + } + } + + /** + * Whether the committer may make this change, judged against the PARENT. + * + * Delegates to the same gate the local commit path uses, so an inbound + * commit and one we authored are held to one rule rather than two that + * drift. + */ + override fun isAuthorized( + parent: MlsGroupState, + commit: ByteArray, + ): Boolean { + val pubMsg = publicMessageOrNull(commit) ?: return false + return try { + val group = MlsGroup.restore(parent) + // A group that names no admins yet is bootstrapping; the gate is + // open there for the same reason the local path leaves it open. + if (group.currentAdminIdentities().isEmpty()) return true + group.isCommitAuthorized(pubMsg) + } catch (_: Exception) { + false + } + } + + override fun tipPriority( + parent: MlsGroupState, + commit: ByteArray, + ): TipPriority { + val pubMsg = publicMessageOrNull(commit) ?: return TipPriority.ORDINARY + return try { + val group = MlsGroup.restore(parent) + // Privileged exactly when the rule that applies REQUIRES an active + // admin. A commit a non-admin could also have made is ordinary even + // when an admin happened to send it. + if (group.isSelfOnlyCommit(pubMsg)) TipPriority.ORDINARY else TipPriority.PRIVILEGED + } catch (_: Exception) { + TipPriority.ORDINARY + } + } + + override fun resultingStateIsValid(resulting: MlsGroupState): Boolean = + try { + // Reading the component set is the validation: every decoder here + // is strict, so malformed or unsorted component bytes throw rather + // than producing a lenient value. An admin policy that named nobody + // would also fail its own constructor. + val group = MlsGroup.restore(resulting) + // Decoding the component set IS the validation: every component + // decoder is strict, so malformed, unsorted or duplicated bytes + // throw rather than yielding a lenient value, and an admin policy + // naming nobody fails its own constructor. + group.currentGroupState() + true + } catch (_: Exception) { + false + } + + override fun commitDigest(commit: ByteArray): ByteArray = sha256(commit) + + private fun publicMessageOrNull(commit: ByteArray): PublicMessage? = + try { + val message = MlsMessage.decodeTls(TlsReader(commit)) + if (message.wireFormat != WireFormat.PUBLIC_MESSAGE) return null + val pubMsg = PublicMessage.decodeTls(TlsReader(message.payload)) + if (pubMsg.contentType != ContentType.COMMIT) null else pubMsg + } catch (_: Exception) { + null + } +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateGraphBuilderTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateGraphBuilderTest.kt new file mode 100644 index 0000000000..e860715a14 --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateGraphBuilderTest.kt @@ -0,0 +1,378 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertNotNull +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * The candidate-graph SHAPES — which commit hangs off which state, where a + * branch diverged, how deep it is, and what each unplaced commit is called. + * + * Driven by a fake engine on purpose. The graph algorithm is independent of + * MLS, and building real groups with real key schedules for every shape would + * make these slow, hard to read, and worse at expressing the case under test. + * `MlsCandidateGraphTest` covers the real engine on a real fork. + */ +class CandidateGraphBuilderTest { + /** + * A toy state: an id, an epoch, and the set of commit ids it authenticates. + * + * Authentication is explicit rather than derived so a test can express + * "these two states share an epoch number but only one is the parent", + * which is the distinction the spec insists on. + */ + private class FakeState( + val id: String, + val epoch: Long, + val accepts: Set = emptySet(), + ) + + private class FakeEngine( + /** commitId -> resulting state, for commits that replay successfully. */ + private val results: Map, + private val unauthorized: Set = emptySet(), + private val invalidResult: Set = emptySet(), + private val replayFails: Set = emptySet(), + private val privileged: Set = emptySet(), + private val committers: Map = emptyMap(), + ) : CandidateStateEngine { + override fun stateId(state: FakeState) = state.id + + override fun epoch(state: FakeState) = state.epoch + + override fun authenticatesAgainst( + state: FakeState, + commit: ByteArray, + ) = commit.decodeToString() in state.accepts + + override fun replay( + state: FakeState, + commit: ByteArray, + ): FakeState? { + val id = commit.decodeToString() + if (id in replayFails) return null + return results[id] + } + + override fun committerIdentity( + parent: FakeState, + commit: ByteArray, + ): ByteArray = committers[commit.decodeToString()] ?: ByteArray(32) + + override fun isAuthorized( + parent: FakeState, + commit: ByteArray, + ) = commit.decodeToString() !in unauthorized + + override fun tipPriority( + parent: FakeState, + commit: ByteArray, + ) = if (commit.decodeToString() in privileged) TipPriority.PRIVILEGED else TipPriority.ORDINARY + + override fun resultingStateIsValid(resulting: FakeState) = resulting.id !in invalidResult + + override fun commitDigest(commit: ByteArray) = + ByteArray(32).also { out -> + commit.decodeToString().encodeToByteArray().copyInto(out, 0, 0, minOf(32, commit.size)) + } + } + + private fun commit( + id: String, + sourceEpoch: Long, + ) = CandidateCommit(id, id.encodeToByteArray(), sourceEpoch) + + @Test + fun aSameEpochForkProducesTwoOneCommitBranches() { + // The canonical race: Alice and Bob both commit from epoch 8. + val base = FakeState("base", 8, accepts = setOf("alice", "bob")) + val aliceTip = FakeState("alice-9", 9) + val bobTip = FakeState("bob-9", 9) + + val graph = + CandidateGraphBuilder(FakeEngine(mapOf("alice" to aliceTip, "bob" to bobTip))).build( + retainedStates = listOf(base), + canonicalStateId = "base", + canonicalAncestry = listOf("base"), + commits = listOf(commit("alice", 8), commit("bob", 8)), + canonicalTipEpoch = 8, + passBaseEpoch = 8, + ) + + assertEquals(2, graph.branches.size) + assertTrue(graph.branches.all { it.forkEpoch == 8L && it.tipEpoch == 9L && it.rawCommitDepth == 1L }) + assertTrue(graph.outcomes.all { it.disposition == ConvergenceDisposition.ACCEPTED }) + } + + @Test + fun sharingAnEpochNumberDoesNotMakeAStateACandidateParent() { + // Two retained states at epoch 8; only one authenticates the commit. + // A builder keyed on the epoch NUMBER would pick either. + val real = FakeState("real-8", 8, accepts = setOf("c1")) + val decoy = FakeState("decoy-8", 8) + val tip = FakeState("tip-9", 9) + + val graph = + CandidateGraphBuilder(FakeEngine(mapOf("c1" to tip))).build( + retainedStates = listOf(decoy, real), + canonicalStateId = "real-8", + canonicalAncestry = listOf("real-8"), + commits = listOf(commit("c1", 8)), + canonicalTipEpoch = 8, + passBaseEpoch = 8, + ) + + assertEquals(1, graph.branches.size) + assertEquals(8, graph.branches.single().forkEpoch) + } + + @Test + fun aChainIsWalkedToItsForkPointAndCountsItsDepth() { + val base = FakeState("base", 8, accepts = setOf("c1")) + val s9 = FakeState("s9", 9, accepts = setOf("c2")) + val s10 = FakeState("s10", 10, accepts = setOf("c3")) + val s11 = FakeState("s11", 11) + + val graph = + CandidateGraphBuilder( + FakeEngine(mapOf("c1" to s9, "c2" to s10, "c3" to s11)), + ).build( + retainedStates = listOf(base), + canonicalStateId = "base", + canonicalAncestry = listOf("base"), + commits = listOf(commit("c1", 8), commit("c2", 9), commit("c3", 10)), + canonicalTipEpoch = 8, + passBaseEpoch = 8, + ) + + val branch = graph.branches.single() + assertEquals(8, branch.forkEpoch) + assertEquals(11, branch.tipEpoch) + assertEquals(3, branch.rawCommitDepth) + } + + @Test + fun aCommitWhoseParentArrivesLaterIsStillPlaced() { + // The fixed point matters: c2 hangs off c1's RESULT, which does not + // exist until c1 has been replayed. Offer them in the wrong order. + val base = FakeState("base", 8, accepts = setOf("c1")) + val s9 = FakeState("s9", 9, accepts = setOf("c2")) + val s10 = FakeState("s10", 10) + + val graph = + CandidateGraphBuilder(FakeEngine(mapOf("c1" to s9, "c2" to s10))).build( + retainedStates = listOf(base), + canonicalStateId = "base", + canonicalAncestry = listOf("base"), + commits = listOf(commit("c2", 9), commit("c1", 8)), + canonicalTipEpoch = 8, + passBaseEpoch = 8, + ) + + assertEquals(2, graph.rawCommitDepthOfSingleBranch()) + assertTrue(graph.outcomes.all { it.disposition == ConvergenceDisposition.ACCEPTED }) + } + + private fun CandidateGraph.rawCommitDepthOfSingleBranch(): Long = branches.single().rawCommitDepth + + // --- dispositions --------------------------------------------------------- + + @Test + fun anOrphanCommitIsDeferredNotFailed() { + // Absence of a parent is never by itself an authorization failure, and + // it is not terminal — the parent may still arrive. + val base = FakeState("base", 8) + val graph = + CandidateGraphBuilder(FakeEngine(emptyMap())).build( + retainedStates = listOf(base), + canonicalStateId = "base", + canonicalAncestry = listOf("base"), + commits = listOf(commit("orphan", 8)), + canonicalTipEpoch = 8, + passBaseEpoch = 8, + ) + + val outcome = graph.outcomes.single() + assertEquals(ConvergenceDisposition.DEFERRED, outcome.disposition) + assertEquals(ConvergenceCategory.MISSING_HISTORY, outcome.category) + assertTrue(graph.branches.isEmpty()) + } + + @Test + fun anOrphanGoesStaleOnlyOnceTheLiveTipPassesTheHorizon() { + val base = FakeState("base", 20) + + fun outcomeAt(tip: Long) = + CandidateGraphBuilder(FakeEngine(emptyMap())) + .build( + retainedStates = listOf(base), + canonicalStateId = "base", + canonicalAncestry = listOf("base"), + commits = listOf(commit("orphan", 10)), + canonicalTipEpoch = tip, + passBaseEpoch = tip, + ).outcomes + .single() + + assertEquals(ConvergenceDisposition.DEFERRED, outcomeAt(15).disposition) + assertEquals(ConvergenceDisposition.STALE, outcomeAt(16).disposition) + assertEquals(ConvergenceCategory.STALE_EPOCH, outcomeAt(16).category) + } + + @Test + fun anUnauthorizedCommitIsTerminalOnceItsParentIsKnown() { + // Different from an orphan: the parent IS identified here, so the + // authorization verdict is final rather than provisional. + val base = FakeState("base", 8, accepts = setOf("hijack")) + val graph = + CandidateGraphBuilder( + FakeEngine(mapOf("hijack" to FakeState("s9", 9)), unauthorized = setOf("hijack")), + ).build( + retainedStates = listOf(base), + canonicalStateId = "base", + canonicalAncestry = listOf("base"), + commits = listOf(commit("hijack", 8)), + canonicalTipEpoch = 8, + passBaseEpoch = 8, + ) + + val outcome = graph.outcomes.single() + assertEquals(ConvergenceDisposition.STALE, outcome.disposition) + assertEquals(ConvergenceCategory.AUTHORIZATION_FAILED, outcome.category) + assertTrue(graph.branches.isEmpty(), "an unauthorized commit creates no edge") + } + + @Test + fun anEdgeIsNotCreatedWhenTheResultingStateBreaksAnInvariant() { + // Convergence must never be ABLE to select an invalid transition, so + // the edge is refused rather than created-and-scored-low. + val base = FakeState("base", 8, accepts = setOf("bad")) + val graph = + CandidateGraphBuilder( + FakeEngine(mapOf("bad" to FakeState("broken-9", 9)), invalidResult = setOf("broken-9")), + ).build( + retainedStates = listOf(base), + canonicalStateId = "base", + canonicalAncestry = listOf("base"), + commits = listOf(commit("bad", 8)), + canonicalTipEpoch = 8, + passBaseEpoch = 8, + ) + + assertTrue(graph.branches.isEmpty()) + assertEquals(ConvergenceDisposition.STALE, graph.outcomes.single().disposition) + assertNull(graph.outcomes.single().resultingStateId) + } + + @Test + fun anMlsReplayFailureCreatesNoEdge() { + val base = FakeState("base", 8, accepts = setOf("corrupt")) + val graph = + CandidateGraphBuilder(FakeEngine(emptyMap(), replayFails = setOf("corrupt"))).build( + retainedStates = listOf(base), + canonicalStateId = "base", + canonicalAncestry = listOf("base"), + commits = listOf(commit("corrupt", 8)), + canonicalTipEpoch = 8, + passBaseEpoch = 8, + ) + assertTrue(graph.branches.isEmpty()) + } + + // --- eligibility and witnesses ------------------------------------------- + + @Test + fun aBranchForkedOutsideTheHorizonIsNotOffered() { + val old = FakeState("old-2", 2, accepts = setOf("c1")) + val graph = + CandidateGraphBuilder(FakeEngine(mapOf("c1" to FakeState("s3", 3)))).build( + retainedStates = listOf(old), + canonicalStateId = "old-2", + canonicalAncestry = listOf("old-2"), + commits = listOf(commit("c1", 2)), + canonicalTipEpoch = 10, + passBaseEpoch = 10, + ) + + assertTrue(graph.branches.isEmpty(), "fork at epoch 2 is 8 behind a base of 10") + assertEquals(ConvergenceDisposition.ACCEPTED, graph.outcomes.single().disposition) + } + + @Test + fun witnessesAreAttachedToTheBranchEpochTheyDecryptedOn() { + val base = FakeState("base", 8, accepts = setOf("c1")) + val s9 = FakeState("s9", 9, accepts = setOf("c2")) + val s10 = FakeState("s10", 10) + + val graph = + CandidateGraphBuilder(FakeEngine(mapOf("c1" to s9, "c2" to s10))).build( + retainedStates = listOf(base), + canonicalStateId = "base", + canonicalAncestry = listOf("base"), + commits = listOf(commit("c1", 8), commit("c2", 9)), + witnesses = + listOf( + WitnessObservation("s9", "a".repeat(64)), + WitnessObservation("s9", "b".repeat(64)), + // Attributed to the base state, which is at the fork + // point and therefore not a branch epoch. + WitnessObservation("base", "c".repeat(64)), + ), + canonicalTipEpoch = 8, + passBaseEpoch = 8, + ) + + val branch = graph.branches.single() + assertEquals(setOf("a".repeat(64), "b".repeat(64)), branch.witnessesByEpoch[9L]) + assertNull(branch.witnessesByEpoch[8L], "the fork epoch is not a branch epoch") + assertTrue(branch.witnessQuorumMet(ConvergencePolicy.V1)) + } + + @Test + fun theBuilderFeedsTheSelectorEndToEnd() { + // The whole point: a graph in, one canonical branch out. + val base = FakeState("base", 8, accepts = setOf("short", "long1")) + val shortTip = FakeState("short-9", 9) + val long9 = FakeState("long-9", 9, accepts = setOf("long2")) + val long10 = FakeState("long-10", 10) + + val graph = + CandidateGraphBuilder( + FakeEngine(mapOf("short" to shortTip, "long1" to long9, "long2" to long10)), + ).build( + retainedStates = listOf(base), + canonicalStateId = "base", + canonicalAncestry = listOf("base"), + commits = listOf(commit("short", 8), commit("long1", 8), commit("long2", 9)), + canonicalTipEpoch = 8, + passBaseEpoch = 8, + ) + + assertEquals(2, graph.branches.size) + val winner = assertNotNull(BranchSelector.select(graph.branches, passBaseEpoch = 8)) + assertEquals(2, winner.rawCommitDepth, "the deeper branch wins") + assertEquals(10, winner.tipEpoch) + } +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MlsCandidateGraphTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MlsCandidateGraphTest.kt new file mode 100644 index 0000000000..9c5ec40a54 --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MlsCandidateGraphTest.kt @@ -0,0 +1,342 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroup +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupState +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.utils.sha256.sha256 +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertNotEquals +import kotlin.test.assertNotNull +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * [CandidateGraphBuilder] driven by [MlsCandidateStateEngine] over REAL MLS + * groups and a REAL same-epoch fork. + * + * `CandidateGraphBuilderTest` proves the graph algebra against a fake engine. + * This one proves the part a fake cannot: that parentage really is recoverable + * by replaying MLS bytes, that two commits authored from one epoch really do + * land on the same parent and produce two distinct states, and that a state id + * built from the GroupContext separates two states that share an epoch NUMBER. + */ +class MlsCandidateGraphTest { + private val engine = MlsCandidateStateEngine() + private val builder = CandidateGraphBuilder(engine) + + /** + * A 2-member group plus the pieces needed to author competing commits from + * one epoch. + * + * [aliceState] is captured BEFORE any second-epoch commit, so a test can + * restore as many independent Alices from it as it needs; each one authors + * a commit that believes it is extending the same parent. That is the + * situation a fork is, reproduced honestly rather than by hand-editing + * bytes. + */ + private class Fixture( + val baseState: MlsGroupState, + val aliceState: MlsGroupState, + val charliePkg: ByteArray, + val davePkg: ByteArray, + ) + + /** + * A Marmot leaf credential carries the member's 32-byte account pubkey, and + * convergence's committer tie-break is defined over exactly that. Fixtures + * use full-width identities so the branches they produce are scorable. + */ + private fun account(seed: Byte) = ByteArray(32) { seed } + + private fun fixture(): Fixture { + val alice = MlsGroup.create(identity = account(0x0a)) + val bobBundle = alice.createKeyPackage(identity = account(0x0b), signingKey = ByteArray(32) { 1 }) + val addBob = alice.addMember(bobBundle.keyPackage.toTlsBytes()) + val bob = MlsGroup.processWelcome(addBob.welcomeBytes!!, bobBundle) + + val charlie = alice.createKeyPackage(identity = account(0x0c), signingKey = ByteArray(32) { 2 }) + val dave = alice.createKeyPackage(identity = account(0x0d), signingKey = ByteArray(32) { 3 }) + + return Fixture( + baseState = bob.saveState(), + aliceState = alice.saveState(), + charliePkg = charlie.keyPackage.toTlsBytes(), + davePkg = dave.keyPackage.toTlsBytes(), + ) + } + + private fun candidate( + bytes: ByteArray, + sourceEpoch: Long, + ) = CandidateCommit(id = sha256(bytes).toHexKey(), bytes = bytes, sourceEpoch = sourceEpoch) + + /** Commit authored by a fresh clone of [state], so [state] stays unspent. */ + private fun addFrom( + state: MlsGroupState, + keyPackage: ByteArray, + ): Pair { + val author = MlsGroup.restore(state) + val commit = author.addMember(keyPackage) + return commit.framedCommitBytes to author + } + + private fun buildOver( + base: MlsGroupState, + commits: List, + witnesses: List = emptyList(), + canonicalTipEpoch: Long = 1L, + passBaseEpoch: Long = 1L, + ): CandidateGraph { + val baseId = engine.stateId(base) + return builder.build( + retainedStates = listOf(base), + canonicalStateId = baseId, + canonicalAncestry = listOf(baseId), + commits = commits, + witnesses = witnesses, + canonicalTipEpoch = canonicalTipEpoch, + passBaseEpoch = passBaseEpoch, + ) + } + + /** + * The core claim: two commits authored from one epoch both authenticate + * against the same retained parent, and each yields its own branch. + * + * If parentage were read from transport metadata this test could not exist + * — neither commit carries a parent pointer, and both claim epoch 1. + */ + @Test + fun realForkYieldsTwoBranchesOffOneParent() { + val fx = fixture() + val (commitA, _) = addFrom(fx.aliceState, fx.charliePkg) + val (commitB, _) = addFrom(fx.aliceState, fx.davePkg) + + val graph = + buildOver(fx.baseState, listOf(candidate(commitA, 1L), candidate(commitB, 1L))) + + assertEquals(2, graph.branches.size, "one branch per competing commit") + assertTrue(graph.outcomes.all { it.disposition == ConvergenceDisposition.ACCEPTED }) + + graph.branches.forEach { branch -> + assertEquals(1L, branch.forkEpoch) + assertEquals(2L, branch.tipEpoch) + assertEquals(1L, branch.rawCommitDepth) + } + + // Two states at the same epoch NUMBER, and the graph holds them apart: + // the id is over the GroupContext, which covers the tree hash. + val tipIds = graph.outcomes.mapNotNull { it.resultingStateId } + assertEquals(2, tipIds.toSet().size, "same-epoch states must not collide") + tipIds.forEach { assertEquals(2L, engine.epoch(graph.statesById.getValue(it))) } + } + + /** + * A two-commit chain offered in reverse order still forms one branch of + * depth 2 — the fixed point places the child once its parent's resulting + * state exists. + */ + @Test + fun chainIsRebuiltEvenWhenCommitsArriveOutOfOrder() { + val fx = fixture() + val (commitA, aliceAfterA) = addFrom(fx.aliceState, fx.charliePkg) + val commitB = aliceAfterA.addMember(fx.davePkg).framedCommitBytes + + val graph = + buildOver( + fx.baseState, + // Child first: nothing can place it on the first sweep. + listOf(candidate(commitB, 2L), candidate(commitA, 1L)), + ) + + assertTrue(graph.outcomes.all { it.disposition == ConvergenceDisposition.ACCEPTED }) + assertEquals(1, graph.branches.size) + val branch = graph.branches.single() + assertEquals(1L, branch.forkEpoch) + assertEquals(3L, branch.tipEpoch) + assertEquals(2L, branch.rawCommitDepth, "both commits count toward the branch depth") + } + + /** A commit from a different group never authenticates here. */ + @Test + fun commitFromAnotherGroupIsDeferredNotAccepted() { + val fx = fixture() + val stranger = fixture() + val (foreign, _) = addFrom(stranger.aliceState, stranger.charliePkg) + + val graph = buildOver(fx.baseState, listOf(candidate(foreign, 1L))) + + assertTrue(graph.branches.isEmpty()) + val outcome = graph.outcomes.single() + assertEquals(ConvergenceDisposition.DEFERRED, outcome.disposition) + assertEquals(ConvergenceCategory.MISSING_HISTORY, outcome.category) + assertNull(outcome.resultingStateId) + } + + /** + * Tampering with a commit costs it its parent: the membership tag no longer + * verifies, so no retained state claims it. It is `deferred`, NOT + * `authorization_failed` — a commit we cannot place is not a commit we + * caught misbehaving. + */ + @Test + fun tamperedCommitFindsNoParentAndIsNeverAuthorizationFailed() { + val fx = fixture() + val (commitA, _) = addFrom(fx.aliceState, fx.charliePkg) + val tampered = commitA.copyOf().also { it[it.size - 1] = (it[it.size - 1].toInt() xor 0x01).toByte() } + + val graph = buildOver(fx.baseState, listOf(candidate(tampered, 1L))) + + assertTrue(graph.branches.isEmpty()) + val outcome = graph.outcomes.single() + assertEquals(ConvergenceDisposition.DEFERRED, outcome.disposition) + assertNotEquals(ConvergenceCategory.AUTHORIZATION_FAILED, outcome.category) + } + + /** + * A commit whose source epoch has fallen behind the live canonical tip by + * more than the rollback horizon is stale, not deferred forever. + */ + @Test + fun unplaceableCommitGoesStaleOnceTheLiveTipPassesTheHorizon() { + val fx = fixture() + val stranger = fixture() + val (foreign, _) = addFrom(stranger.aliceState, stranger.charliePkg) + + val farAhead = 1L + ConvergencePolicy.V1.maxRewindCommits + 1L + val graph = + buildOver( + fx.baseState, + listOf(candidate(foreign, 1L)), + canonicalTipEpoch = farAhead, + ) + + val outcome = graph.outcomes.single() + assertEquals(ConvergenceDisposition.STALE, outcome.disposition) + assertEquals(ConvergenceCategory.STALE_EPOCH, outcome.category) + } + + /** + * The state id the graph reports for an edge is the same one a caller gets + * by replaying that commit itself. That is what lets a witness observation + * — recorded when an app payload decrypts against some state — be matched + * back to a branch epoch. + */ + @Test + fun witnessOnAReplayedStateAttachesToItsBranchEpoch() { + val fx = fixture() + val (commitA, _) = addFrom(fx.aliceState, fx.charliePkg) + val (commitB, _) = addFrom(fx.aliceState, fx.davePkg) + + val replayedA = engine.replay(fx.baseState, commitA) + assertNotNull(replayedA) + val stateIdA = engine.stateId(replayedA) + + val witnesses = + listOf( + WitnessObservation(stateIdA, "aa".repeat(32)), + WitnessObservation(stateIdA, "bb".repeat(32)), + ) + val graph = + buildOver( + fx.baseState, + listOf(candidate(commitA, 1L), candidate(commitB, 1L)), + witnesses = witnesses, + ) + + val idA = graph.outcomes.single { it.commitId == sha256(commitA).toHexKey() }.resultingStateId + assertEquals(stateIdA, idA, "replaying the same commit twice must name the same state") + + val witnessed = graph.branches.single { it.witnessesByEpoch.isNotEmpty() } + assertEquals(setOf(2L), witnessed.witnessesByEpoch.keys) + assertEquals(2, witnessed.witnessesByEpoch.getValue(2L).size) + + // And the branch that carries the witnesses is the one selection prefers. + val chosen = BranchSelector.select(graph.branches, passBaseEpoch = 1L) + assertEquals(witnessed, chosen) + } + + /** + * Selection over real branches is deterministic and symmetric: offering the + * same fork in either order picks the same tip. With everything else tied, + * the tie-break falls through to the tip commit digest — a property of the + * bytes, not of arrival order. + */ + @Test + fun selectionOverARealForkIsIndependentOfArrivalOrder() { + val fx = fixture() + val (commitA, _) = addFrom(fx.aliceState, fx.charliePkg) + val (commitB, _) = addFrom(fx.aliceState, fx.davePkg) + val a = candidate(commitA, 1L) + val b = candidate(commitB, 1L) + + val forward = BranchSelector.select(buildOver(fx.baseState, listOf(a, b)).branches, passBaseEpoch = 1L) + val reverse = BranchSelector.select(buildOver(fx.baseState, listOf(b, a)).branches, passBaseEpoch = 1L) + + assertNotNull(forward) + assertNotNull(reverse) + assertEquals(forward.tipDigestHex, reverse.tipDigestHex) + } + + /** + * A group whose leaf credentials are not account pubkeys produces no + * selectable branch. Its commits still replay — MLS does not care how wide + * a Basic credential is — but the committer tie-break has nothing to + * compare, and the builder drops the tip rather than substituting zeros. + */ + @Test + fun tipThatCannotBeAttributedToAnAccountIsNotSelectable() { + val alice = MlsGroup.create(identity = "alice".encodeToByteArray()) + val bobBundle = alice.createKeyPackage(identity = "bob".encodeToByteArray(), signingKey = ByteArray(32) { 1 }) + val addBob = alice.addMember(bobBundle.keyPackage.toTlsBytes()) + val bob = MlsGroup.processWelcome(addBob.welcomeBytes!!, bobBundle) + val charliePkg = alice.createKeyPackage(identity = "charlie".encodeToByteArray(), signingKey = ByteArray(32) { 2 }) + + val base = bob.saveState() + val (commit, _) = addFrom(alice.saveState(), charliePkg.keyPackage.toTlsBytes()) + + val graph = buildOver(base, listOf(candidate(commit, 1L))) + + // The commit itself is fine — it replayed and produced a state. + assertEquals(ConvergenceDisposition.ACCEPTED, graph.outcomes.single().disposition) + assertTrue(graph.branches.isEmpty(), "an unattributable tip must not become a branch") + } + + /** Replaying against a candidate parent must not spend the retained snapshot. */ + @Test + fun replayLeavesTheRetainedStateReusable() { + val fx = fixture() + val (commitA, _) = addFrom(fx.aliceState, fx.charliePkg) + val baseIdBefore = engine.stateId(fx.baseState) + + repeat(3) { + val replayed = engine.replay(fx.baseState, commitA) + assertNotNull(replayed) + assertEquals(2L, engine.epoch(replayed)) + } + + assertEquals(baseIdBefore, engine.stateId(fx.baseState)) + assertEquals(1L, engine.epoch(fx.baseState)) + } +} From 9effa7735d6faa1a71ba7ea264302263ac19b166 Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 18:34:44 +0000 Subject: [PATCH 11/79] feat(marmot): resolve same-epoch forks by convergence, not by timestamp MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit `MarmotInboundProcessor` decided same-epoch races by the superseded MIP rule: lowest outer `created_at`, then lowest Nostr event id. Both are transport metadata the sender picks and MLS does not authenticate, so a member could win every race by backdating. `CommitOrdering.kt` is deleted and `MarmotConvergenceEngine` takes over, running the bounded pass, the candidate graph and the six-step comparison end to end. The wiring decision worth recording is that convergence does NOT hold every commit for the quiescence window. A literal reading of the bounded pass would tax the overwhelmingly common single-commit case with a second of latency for nothing. It does not have to, because MLS is its own fork detector: once a commit is applied, a competitor authored against the same parent stops authenticating against the new tip but still authenticates against the RETAINED parent. So linear commits apply eagerly, the state each was applied to is retained, and a commit that authenticates a retained state rather than the tip IS the fork — only then does a pass open. That does not change the answer, and the reason is which state resolution treats as the base. It is the newest retained state a divergent commit authenticates against, not the current tip, and the canonical commits applied at or after it are replayed back into the graph. So the incumbent is rebuilt as a branch and scored by the same rule as its challengers instead of winning by having been applied first. Eager application only decides which branch is provisionally displayed while the pass runs. Supporting pieces: `MlsGroupManager.snapshot` takes a state without touching storage, and `installState` is the rewind primitive — it pushes the outgoing epoch's secrets into the retention window first, so messages already sent on the abandoned branch still decrypt. `MarmotManager` records locally-authored commits too: our own commit is half of any fork we are party to, and without it a peer's competitor would look like an unplaceable orphan and be deferred rather than compared. The headline test builds a real same-epoch fork between two admins, feeds two observers the same two commits in opposite orders, and asserts they land on the same GroupContext with exactly one of them having rewound. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/commons/marmot/MarmotManager.kt | 38 ++ quartz/plans/2026-09-08-marmot-spec-resync.md | 63 ++- .../quartz/marmot/MarmotInboundProcessor.kt | 175 +++++-- .../mip03GroupMessages/CommitOrdering.kt | 176 ------- .../marmot/mls/group/MlsGroupManager.kt | 45 ++ .../protocolCore/CandidateGraphBuilder.kt | 30 +- .../protocolCore/MarmotConvergenceEngine.kt | 472 ++++++++++++++++++ .../quartz/marmot/CommitOrderingTest.kt | 195 -------- .../marmot/MarmotConvergenceWiringTest.kt | 326 ++++++++++++ .../quartz/marmot/MarmotPipelineTest.kt | 16 +- 10 files changed, 1095 insertions(+), 441 deletions(-) delete mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip03GroupMessages/CommitOrdering.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt delete mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/CommitOrderingTest.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 79b7459c6b..99fe7feda7 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -39,7 +39,9 @@ import com.vitorpamplona.quartz.marmot.mip02Welcome.WelcomeEvent import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEvent import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupState import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore +import com.vitorpamplona.quartz.marmot.mls.messages.CommitResult import com.vitorpamplona.quartz.marmot.mls.tree.Credential import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey @@ -98,6 +100,10 @@ class MarmotManager( subscriptionManager.subscribeGroup(groupId, since) } subscriptionManager.syncWithGroupManager(activeIds) + // Seed convergence with each restored state. A commit that arrives + // before this has no retained parent, so a fork right after a + // restart would be invisible. + activeIds.forEach { inboundProcessor.trackGroup(it) } // Also restore previously-published KeyPackage bundles so that // Welcomes referencing them remain processable across restarts. keyPackageRotationManager.restoreFromStore() @@ -384,6 +390,7 @@ class MarmotManager( // that key; the local group state has already advanced to N+1 by // the time addMember returns, so we can't read it from the group // any more. + val (preState, preEpoch) = preCommit(nostrGroupId) val commitResult = groupManager.addMember(nostrGroupId, keyPackageBytes) val commitEvent = outboundProcessor.buildCommitEvent( @@ -395,6 +402,7 @@ class MarmotManager( // dedup our own inbound pipeline would try to re-apply a commit whose // epoch we've already merged. inboundProcessor.markMessageProcessed(commitEvent.marmotMessageId) + recordLocalCommit(nostrGroupId, commitResult, preState, preEpoch) val welcomeDelivery = welcomeSender.wrapWelcome( @@ -428,11 +436,37 @@ class MarmotManager( val identity = signer.pubKey.hexToByteArray() val extras = initialMetadata?.let { listOf(it.toExtension()) } ?: emptyList() groupManager.createGroup(nostrGroupId, identity, initialExtensions = extras) + inboundProcessor.trackGroup(nostrGroupId) subscriptionManager.subscribeGroup(nostrGroupId) Log.d("MarmotManager") { "createGroup($nostrGroupId): persisted and subscribed" } return nostrGroupId } + /** + * Tell convergence about a commit we just authored and applied locally. + * + * Our own commits are half of any fork we are party to. Without them in the + * retained window a peer's competing commit has no parent to replay + * against, so it would be deferred as an orphan rather than compared — + * and the group would quietly stay split. + */ + private suspend fun recordLocalCommit( + nostrGroupId: HexKey, + commitResult: CommitResult, + preState: MlsGroupState?, + preEpoch: Long, + ) { + inboundProcessor.recordLocalCommit( + groupId = nostrGroupId, + framedCommitBytes = commitResult.framedCommitBytes, + sourceEpoch = preEpoch, + preState = preState, + ) + } + + /** The state and epoch a local commit is about to be applied to. */ + private fun preCommit(nostrGroupId: HexKey): Pair = groupManager.snapshot(nostrGroupId) to (groupManager.getGroup(nostrGroupId)?.epoch ?: 0L) + /** * Nuke all local Marmot state — every MLS group, every retained epoch * secret, every persisted KeyPackage bundle, and every relay @@ -526,6 +560,7 @@ class MarmotManager( nostrGroupId: HexKey, targetLeafIndex: Int, ): OutboundGroupEvent { + val (preState, preEpoch) = preCommit(nostrGroupId) val commitResult = groupManager.removeMember(nostrGroupId, targetLeafIndex) val commitEvent = outboundProcessor.buildCommitEvent( @@ -534,6 +569,7 @@ class MarmotManager( exporterKey = commitResult.preCommitExporterSecret, ) inboundProcessor.markMessageProcessed(commitEvent.marmotMessageId) + recordLocalCommit(nostrGroupId, commitResult, preState, preEpoch) return commitEvent } @@ -557,6 +593,7 @@ class MarmotManager( ?: throw IllegalStateException("Not a member of group $nostrGroupId") val preserved = group.extensions.filter { it.extensionType != MarmotGroupData.EXTENSION_ID_INT } val merged = preserved + metadata.toExtension() + val (preState, preEpoch) = preCommit(nostrGroupId) val commitResult = groupManager.updateGroupExtensions(nostrGroupId, merged) val commitEvent = outboundProcessor.buildCommitEvent( @@ -565,6 +602,7 @@ class MarmotManager( exporterKey = commitResult.preCommitExporterSecret, ) inboundProcessor.markMessageProcessed(commitEvent.marmotMessageId) + recordLocalCommit(nostrGroupId, commitResult, preState, preEpoch) return commitEvent } diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index 41605b3ab1..61dca023bd 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -1,7 +1,7 @@ # Marmot: resync against the adopted spec and current MDK -Status: Stages 0-6 landed in Quartz (selection, bounded pass, and candidate-graph replay; -the inbound wiring remains). The app layer still creates MIP-era groups. Stage 7 open. +Status: Stages 0-6 landed in Quartz, convergence is ON the inbound path, and the superseded +`CommitOrdering` tiebreak is deleted. The app layer still creates MIP-era groups. Stage 7 open. Sources checked on 2026-09-08: @@ -153,10 +153,11 @@ Blast radius of `MarmotGroupData`: 22 files across `quartz`, `commons`, `amethys ### 4.3 Convergence — GAP (the article's subject) -We have none of it. `CommitOrdering.kt` implements the superseded rule (lowest `created_at`, -then lowest Nostr event id) and is wired into `MarmotInboundProcessor.kt:523` as a -per-`(group, epoch)` bucket. The spec now forbids using transport arrival order, transport -timestamps, or outer event ids in branch selection at all. +(As of the gap analysis; `CommitOrdering.kt` has since been deleted and replaced by +`MarmotConvergenceEngine` — see Stage 6.) We had none of it. `CommitOrdering.kt` implemented +the superseded rule (lowest `created_at`, then lowest Nostr event id) and was wired into +`MarmotInboundProcessor` as a per-`(group, epoch)` bucket. The spec forbids using transport +arrival order, transport timestamps, or outer event ids in branch selection at all. Missing, all of `protocol-core/convergence.md`: @@ -488,9 +489,40 @@ The things that make it non-obvious, all of them tested: `enforceNoAdminDepletion` gates the local commit path runs, so an inbound commit and one we authored are held to one rule rather than two that drift. -**Still open:** wiring the pass + selector + graph into `MarmotInboundProcessor` so inbound -commits actually flow through them. `CommitOrdering`'s transport-metadata tiebreak therefore -still stands — it is only safe to delete once something replaces it end to end. +`MarmotConvergenceEngine` puts all of it on the inbound path and `mip03GroupMessages/ +CommitOrdering.kt` is **deleted** — the superseded rule (lowest outer `created_at`, then lowest +Nostr event id) no longer exists anywhere in the tree. + +The wiring decision worth recording is that convergence does NOT hold every commit for the +quiescence window. A literal reading of the bounded pass would tax the overwhelmingly common +single-commit case with a second of latency for nothing. It does not have to, because MLS is +its own fork detector: once a commit is applied, a competitor authored against the same parent +stops authenticating against the new tip but still authenticates against the RETAINED parent. +So linear commits apply eagerly, the state each was applied to is retained, and a commit that +authenticates a retained state rather than the tip IS the fork — only then does a pass open. + +That is not an optimization that changes the answer, and the reason is the base choice at +resolution time. The base is the newest retained state a divergent commit authenticates +against, NOT the current tip; the canonical commits applied at or after it are replayed back +into the graph, so the incumbent is rebuilt as a branch and scored by the same six-step rule as +its challengers instead of winning by being already applied. Eager application only decides +which branch is provisionally displayed while a pass runs. +`MarmotConvergenceWiringTest.twoObserversConvergeRegardlessOfArrivalOrder` builds a real +same-epoch fork, feeds two observers the same two commits in opposite orders, and asserts they +end on the same GroupContext with exactly one of them having rewound. + +Supporting pieces: `MlsGroupManager.snapshot` (state without touching storage) and +`installState` (the rewind primitive — it pushes the outgoing epoch's secrets into the +retention window first, so traffic already sent on the abandoned branch still decrypts). +`MarmotManager` records locally-authored commits too, because our own commit is half of any +fork we are party to; without it a peer's competitor would look like an unplaceable orphan and +be deferred rather than compared. + +**Still open:** app-payload witnesses are plumbed (`recordWitness`) but nothing feeds them yet +— that needs the bounded retained-candidate trial decryption still outstanding from Stage 4. +A group that goes quiet mid-pass has no inbound traffic to tick it, so the app layer must drive +`settleDueConvergence()` from a timer while `openConvergencePasses()` is non-empty; that timer +is not wired in `commons`/`amethyst` yet. **Stage 7 — durability/restart conformance, app payload kinds (1009/1210), encrypted-media v2, push owner proof.** @@ -535,11 +567,14 @@ Writing the producer side immediately found two bugs the reader-side tests could `MarmotGroupData`; nothing in `commons`, `amethyst`, `desktopApp` or `cli` calls `CurrentProfileGroupFactory` yet. The Quartz half is ready and tested; the wiring is not written. -- **Convergence is not on the inbound path.** `CandidateGraphBuilder`, `BranchSelector` and - `ConvergencePass` exist and are tested end to end against real MLS forks, but - `MarmotInboundProcessor` still routes commits through `CommitOrdering`'s superseded - timestamp/event-id tiebreak. What is missing is only the wiring: feeding retained states and - inbound commits into a pass, and applying the selected branch. +- **Nothing drives a quiet group's pass to settle.** Convergence is on the inbound path and + settles opportunistically on the next inbound event, but a group that falls silent mid-pass + has nothing to tick it. `settleDueConvergence()` exists for the app layer's timer and no + timer calls it yet. +- **App-payload witnesses are never recorded.** `MarmotConvergenceEngine.recordWitness` is + wired into scoring but has no producer, so branch comparison currently never reaches the + witness steps. The producer is the bounded retained-candidate trial decryption still open + from Stage 4. - **The lifecycle states gate nothing.** `GroupLifecycleState` is a correct model with no enforcement behind it. - Stage 7: durability/restart conformance, app payload kinds `1009`/`1210`, encrypted-media v2, diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt index bdabbb3392..484266393d 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt @@ -22,7 +22,6 @@ package com.vitorpamplona.quartz.marmot import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageRotationManager import com.vitorpamplona.quartz.marmot.mip02Welcome.WelcomeEvent -import com.vitorpamplona.quartz.marmot.mip03GroupMessages.CommitOrdering import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEvent import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEventEncryption import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader @@ -32,6 +31,12 @@ import com.vitorpamplona.quartz.marmot.mls.framing.PrivateMessage import com.vitorpamplona.quartz.marmot.mls.framing.PublicMessage import com.vitorpamplona.quartz.marmot.mls.framing.WireFormat import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupState +import com.vitorpamplona.quartz.marmot.protocolCore.ConvergenceAdmission +import com.vitorpamplona.quartz.marmot.protocolCore.ConvergenceResolution +import com.vitorpamplona.quartz.marmot.protocolCore.ConvergenceStatus +import com.vitorpamplona.quartz.marmot.protocolCore.GroupLifecycleState +import com.vitorpamplona.quartz.marmot.protocolCore.MarmotConvergenceEngine import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.toHexKey @@ -72,6 +77,8 @@ sealed class GroupEventResult { data class CommitPending( val groupId: HexKey, val epoch: Long, + /** True when this commit forked the group and opened a convergence pass. */ + val forkDetected: Boolean = false, ) : GroupEventResult() /** @@ -162,13 +169,23 @@ sealed class WelcomeResult { * extract welcome bytes and join the group via MlsGroupManager * * This class coordinates between [GroupEventEncryption] (outer layer), - * [MlsGroupManager] (MLS engine), and [CommitOrdering] (conflict resolution). + * [MlsGroupManager] (MLS engine), and [MarmotConvergenceEngine] (fork + * resolution). + * + * ## Same-epoch conflicts + * + * Competing commits are resolved by `protocol-core/convergence.md`: a bounded + * pass collects candidates, branches are built by replaying MLS bytes against + * retained states, and the six-step comparison picks one. The superseded + * MIP-era rule — lowest outer `created_at`, then lowest Nostr event id — is + * gone, and deliberately: both are transport metadata the sender chooses and + * MLS does not authenticate, so a member could win every race by backdating. */ class MarmotInboundProcessor( private val groupManager: MlsGroupManager, private val keyPackageRotationManager: KeyPackageRotationManager, + private val convergence: MarmotConvergenceEngine = MarmotConvergenceEngine(groupManager), ) { - private val commitTracker = CommitOrdering.EpochCommitTracker() private val processedIdsMutex = Mutex() /** @@ -228,6 +245,13 @@ class MarmotInboundProcessor( return GroupEventResult.Error(groupId, "Not a member of group $groupId") } + // Settle FIRST, so this event is processed against resolved state + // rather than against a branch a pass is about to abandon. Inbound + // traffic is only an opportunistic tick, though: a group that goes + // quiet mid-pass has nothing to drive it, which is why + // [settleDueConvergence] exists for the app layer's timer. + convergence.settleIfDue(groupId) + var messageId: String? = null val result = try { @@ -376,6 +400,10 @@ class MarmotInboundProcessor( // Mark the KeyPackage as consumed — triggers rotation keyPackageRotationManager.markConsumedByEventId(keyPackageEventId) + // Seed convergence with the joined state, so the very first inbound + // commit already has a retained parent to fall back to. + convergence.trackGroup(nostrGroupId) + WelcomeResult.Joined( nostrGroupId = nostrGroupId, needsKeyPackageRotation = keyPackageRotationManager.needsRotation(), @@ -412,38 +440,66 @@ class MarmotInboundProcessor( } /** - * Resolve any pending commit conflicts for a given epoch. + * Start tracking [groupId] for convergence. * - * Call this after a brief delay when multiple commits may arrive for - * the same epoch. The winning commit is applied; losers are discarded. - * - * @param groupId the Nostr group ID - * @param epoch the epoch to resolve - * @return the result of processing the winning commit, or null if no commits pending + * Call after creating, joining, or restoring a group. The engine needs the + * current state in its retained window before the first commit arrives — + * a commit that loses a race is only recoverable if the state it was + * authored against is still held. */ - suspend fun resolveCommitConflict( - groupId: HexKey, - epoch: Long, - ): GroupEventResult? { - val winner = - commitTracker.resolve(groupId, epoch) - ?: return null - - val result = applyCommit(groupId, winner) - commitTracker.clearEpoch(groupId, epoch) - return result + suspend fun trackGroup(groupId: HexKey) { + convergence.trackGroup(groupId) } /** - * Get all (group, epoch) keys that have pending unresolved commits. + * Record a commit WE authored and already applied locally. + * + * Convergence has to see our own commits or it cannot resolve a fork we are + * half of: with no retained parent for our commit, a peer's competing one + * would look like an unplaceable orphan and be deferred forever instead of + * compared. [preState] must be captured BEFORE the local commit advanced + * the group — the outbound helper cannot recover it afterwards. */ - suspend fun pendingCommitGroupEpochs(): Set = commitTracker.pendingGroupEpochs() + suspend fun recordLocalCommit( + groupId: HexKey, + framedCommitBytes: ByteArray, + sourceEpoch: Long, + preState: MlsGroupState?, + ) { + convergence.recordApplied(groupId, framedCommitBytes, sourceEpoch, preState) + } /** - * Clear all pending commit state. + * Resolve [groupId]'s open convergence pass now, without waiting for its + * cutoff. + * + * The pass timers are scheduling, not semantics, so closing one early + * changes WHEN the frozen batch is resolved and never what it resolves to. + * Returns null when no pass is open. */ + suspend fun resolveConvergence(groupId: HexKey): ConvergenceResolution? = convergence.settle(groupId) + + /** + * Resolve every group whose convergence pass has reached its cutoff. + * + * A quiet group settles nothing on its own — there is no inbound traffic to + * carry it — so the app layer should also drive this from a timer for as + * long as [openConvergencePasses] is non-empty. + */ + suspend fun settleDueConvergence(): List = convergence.settleAllDue() + + /** Groups with an open convergence pass, and the base epoch each snapshotted. */ + suspend fun openConvergencePasses(): Map = convergence.openPasses() + + /** Convergence status for [groupId]; `SETTLED` when no pass is running. */ + suspend fun convergenceStatus(groupId: HexKey): ConvergenceStatus = convergence.status(groupId) + + /** Group lifecycle state for [groupId], including a running pass's `Recovering`. */ + suspend fun groupLifecycle(groupId: HexKey): GroupLifecycleState = convergence.lifecycle(groupId) + + /** Drop all convergence state. */ suspend fun clearPendingCommits() { - commitTracker.clear() + convergence.clear() } private suspend fun processPrivateMessage( @@ -537,25 +593,26 @@ class MarmotInboundProcessor( } } + /** + * Apply an inbound commit, letting convergence decide anything ambiguous. + * + * Commits that extend the current tip apply straight away rather than being + * held for a pass. That is not a shortcut past convergence: the state the + * commit was applied to is retained, so a competitor authored against the + * same parent is still recoverable afterwards — it simply stops + * authenticating against the new tip, which is precisely how the fork is + * detected. Holding every commit for the quiescence window instead would + * tax the overwhelmingly common single-commit case with a second of + * latency and change no outcome. + */ private suspend fun handleCommitEvent( groupId: HexKey, groupEvent: GroupEvent, ): GroupEventResult { - val group = - groupManager.getGroup(groupId) - ?: return GroupEventResult.Error(groupId, "Group not found") - val currentEpoch = group.epoch - commitTracker.addCommit(groupId, currentEpoch, groupEvent) - - // If this is the only commit for this epoch, apply immediately - val pending = commitTracker.pendingForEpoch(groupId, currentEpoch) - return if (pending.size == 1) { - val result = applyCommit(groupId, groupEvent) - commitTracker.clearEpoch(groupId, currentEpoch) - result - } else { - GroupEventResult.CommitPending(groupId, currentEpoch) + if (groupManager.getGroup(groupId) == null) { + return GroupEventResult.Error(groupId, "Group not found") } + return applyCommit(groupId, groupEvent) } private suspend fun applyCommit( @@ -616,19 +673,30 @@ class MarmotInboundProcessor( GroupEventResult.Error(groupId, "PublicMessage commit missing confirmation_tag") } - // Reject commits that are not for our current epoch. - // Happens most commonly when our own already-applied - // commit is echoed back from the relay after an app - // restart (the in-memory dedup set is cleared), and - // the outer layer decrypts via a retained epoch key. - // Calling `processCommit` on a past-epoch commit + // A commit for an epoch we already left is either an + // echo of something applied, or the losing half of a + // same-epoch race. Convergence tells them apart by + // asking whether any RETAINED state authenticates it: + // an echo authenticates nothing (we consumed its + // parent), a competitor authenticates the parent we + // still hold. + // + // Either way it must not go to `processCommit`, which // partially mutates tree / groupContext / epochSecrets - // before throwing on the confirmation-tag check, - // leaving the local state diverged from every other - // member's — they then can't decrypt anything we - // send next. + // before throwing on the confirmation-tag check and + // leaves local state diverged from every other + // member's. The fork is replayed against a CLONE of + // the retained state instead, so the live group is + // never touched until selection has decided. currentEpoch != null && pubMsg.epoch < currentEpoch -> { - GroupEventResult.Duplicate(groupId) + when (convergence.offerDivergent(groupId, mlsBytes, pubMsg.epoch)) { + ConvergenceAdmission.ADMITTED -> + GroupEventResult.CommitPending(groupId, pubMsg.epoch, forkDetected = true) + + ConvergenceAdmission.DUPLICATE, + ConvergenceAdmission.NOT_A_CANDIDATE, + -> GroupEventResult.Duplicate(groupId) + } } currentEpoch != null && pubMsg.epoch > currentEpoch -> { @@ -652,6 +720,12 @@ class MarmotInboundProcessor( "Invalid membership_tag on PublicMessage commit", ) } else { + // Captured BEFORE the epoch advance: this is + // the parent a competing commit authenticates + // against, and without it a commit that lost + // the race would have nothing to replay on and + // could never be reconsidered. + val preState = groupManager.snapshot(groupId) groupManager.processCommit( nostrGroupId = groupId, commitBytes = pubMsg.content, @@ -659,6 +733,7 @@ class MarmotInboundProcessor( confirmationTag = tag, signature = pubMsg.signature, ) + convergence.recordApplied(groupId, mlsBytes, pubMsg.epoch, preState) val post = groupManager.getGroup(groupId) GroupEventResult.CommitProcessed(groupId, post?.epoch ?: 0) } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip03GroupMessages/CommitOrdering.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip03GroupMessages/CommitOrdering.kt deleted file mode 100644 index 54723cfe50..0000000000 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip03GroupMessages/CommitOrdering.kt +++ /dev/null @@ -1,176 +0,0 @@ -/* - * Copyright (c) 2025 Vitor Pamplona - * - * Permission is hereby granted, free of charge, to any person obtaining a copy of - * this software and associated documentation files (the "Software"), to deal in - * the Software without restriction, including without limitation the rights to use, - * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the - * Software, and to permit persons to whom the Software is furnished to do so, - * subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR - * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ -package com.vitorpamplona.quartz.marmot.mip03GroupMessages - -import kotlinx.coroutines.sync.Mutex -import kotlinx.coroutines.sync.withLock - -/** - * Deterministic commit conflict resolution for MLS over Nostr (MIP-03). - * - * When multiple members submit Commits for the same epoch, exactly one must win: - * 1. Lowest created_at timestamp wins - * 2. If timestamps are equal, lexicographically smallest event id wins - * 3. All other competing Commits for that epoch are discarded - * - * This ensures all group members converge on the same group state without - * requiring a central coordinator. - */ -object CommitOrdering { - /** - * Comparator for ordering GroupEvents deterministically. - * The "winner" (lowest value) should be applied; all others are discarded. - */ - val comparator: Comparator = - compareBy { it.createdAt } - .thenBy { it.id } - - /** - * Selects the winning Commit from a set of competing Commits for the same epoch. - * - * @param commits competing Commits for the same MLS epoch - * @return the winning Commit that should be applied, or null if empty - */ - fun selectWinner(commits: List): GroupEvent? { - if (commits.isEmpty()) return null - return commits.minWithOrNull(comparator) - } - - /** - * Determines if a given commit is the winner among competing commits. - * - * @param candidate the commit to check - * @param competitors all competing commits for the same epoch (including candidate) - * @return true if candidate is the winning commit - */ - fun isWinner( - candidate: GroupEvent, - competitors: List, - ): Boolean { - val winner = selectWinner(competitors) ?: return false - return winner.id == candidate.id - } - - /** - * Key for tracking pending commits: must be unique per (group, epoch) pair - * since epoch numbers are not globally unique across different groups. - */ - data class GroupEpochKey( - val groupId: String, - val epoch: Long, - ) - - /** - * Tracks pending commits per (group, epoch) and resolves conflicts. - * - * Accumulate commits as they arrive from relays, then call [resolve] - * to determine which commit wins for each (group, epoch). - */ - class EpochCommitTracker { - private val mutex = Mutex() - private val pendingByGroupEpoch = mutableMapOf>() - - companion object { - /** Maximum number of (group, epoch) entries to track before evicting oldest. */ - const val MAX_TRACKED_EPOCHS = 1000 - } - - /** - * Adds a commit for a given group and epoch. - * - * @param groupId the Nostr group ID - * @param epoch the MLS epoch number this commit targets - * @param commit the GroupEvent containing the commit - */ - suspend fun addCommit( - groupId: String, - epoch: Long, - commit: GroupEvent, - ) = mutex.withLock { - val key = GroupEpochKey(groupId, epoch) - pendingByGroupEpoch.getOrPut(key) { mutableListOf() }.add(commit) - - // Evict oldest entries if the tracker grows too large - if (pendingByGroupEpoch.size > MAX_TRACKED_EPOCHS) { - val oldestKeys = - pendingByGroupEpoch.keys - .sortedBy { it.epoch } - .take(pendingByGroupEpoch.size - MAX_TRACKED_EPOCHS) - for (oldKey in oldestKeys) { - pendingByGroupEpoch.remove(oldKey) - } - } - } - - /** - * Returns pending commits for a specific group and epoch. - */ - suspend fun pendingForEpoch( - groupId: String, - epoch: Long, - ): List = - mutex.withLock { - pendingByGroupEpoch[GroupEpochKey(groupId, epoch)]?.toList() ?: emptyList() - } - - /** - * Resolves the winning commit for a specific group and epoch. - * - * @param groupId the Nostr group ID - * @param epoch the MLS epoch to resolve - * @return the winning commit, or null if no commits exist for this (group, epoch) - */ - suspend fun resolve( - groupId: String, - epoch: Long, - ): GroupEvent? = - mutex.withLock { - selectWinner(pendingByGroupEpoch[GroupEpochKey(groupId, epoch)] ?: emptyList()) - } - - /** - * Clears pending commits for a (group, epoch) after it has been resolved. - */ - suspend fun clearEpoch( - groupId: String, - epoch: Long, - ) = mutex.withLock { - pendingByGroupEpoch.remove(GroupEpochKey(groupId, epoch)) - Unit - } - - /** - * Returns all (group, epoch) keys that have pending commits. - */ - suspend fun pendingGroupEpochs(): Set = - mutex.withLock { - pendingByGroupEpoch.keys.toSet() - } - - /** - * Clears all pending state. - */ - suspend fun clear() = - mutex.withLock { - pendingByGroupEpoch.clear() - } - } -} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt index 4aa5f30ee8..b51b1f71b6 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt @@ -152,6 +152,51 @@ class MlsGroupManager( */ fun getGroup(nostrGroupId: HexKey): MlsGroup? = groups[nostrGroupId] + /** + * A snapshot of a group's current state, WITHOUT persisting anything. + * + * Convergence keeps a bounded window of these so a commit that lost a + * same-epoch race still has a parent to replay against later. Taking the + * snapshot must not touch storage: it happens on every applied commit, + * and the state that matters is already persisted by the apply itself. + */ + fun snapshot(nostrGroupId: HexKey): MlsGroupState? = groups[nostrGroupId]?.saveState() + + /** + * Replace a group's state wholesale — the convergence rewind primitive. + * + * Used when branch selection picks a candidate branch over what was + * canonical. The outgoing epoch's secrets are pushed into the retention + * window first, so application messages already sent on the abandoned + * branch still decrypt for as long as any other past epoch would. + * + * This deliberately takes a whole state rather than a commit: the state was + * produced by replaying MLS bytes during graph construction, and replaying + * them a second time here would risk the two answers differing. + */ + suspend fun installState( + nostrGroupId: HexKey, + state: MlsGroupState, + ) = mutex.withLock { + val current = groups[nostrGroupId] + val changed = + current == null || + !current + .saveState() + .groupContext + .toTlsBytes() + .contentEquals(state.groupContext.toTlsBytes()) + if (!changed) return@withLock + + val outgoing = current?.retainedSecrets() + groups[nostrGroupId] = MlsGroup.restore(state) + // Retain by outgoing epoch even when the epoch NUMBER is unchanged: a + // same-epoch rewind swaps one epoch-N state for a different one, and + // the abandoned N still has traffic addressed to it. + if (outgoing != null) pushRetainedEpoch(nostrGroupId, outgoing) + persistGroup(nostrGroupId) + } + /** * List all active Nostr group IDs. */ diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateGraphBuilder.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateGraphBuilder.kt index 4ae7ffd7c9..3aebbf2ead 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateGraphBuilder.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/CandidateGraphBuilder.kt @@ -157,6 +157,23 @@ class CandidateGraph( val outcomes: List, /** Every state reachable in this graph, by id — canonical and candidate alike. */ val statesById: Map, + /** + * For each state this graph PRODUCED, the state it was produced from. + * + * Retained states have no entry — they were given, not derived. Walking + * this is how a caller that selected a branch recovers the states and + * commits along it, which is what applying a rewind needs. + */ + val parentOf: Map = emptyMap(), + /** For each produced state, the commit that produced it. */ + val producedBy: Map = emptyMap(), + /** + * Tip state id per branch, keyed by the branch's tip commit digest (hex). + * + * A tip state is produced by exactly one commit in a graph, so the digest + * identifies the branch unambiguously and no ordering has to be trusted. + */ + val branchTips: Map = emptyMap(), ) /** @@ -280,8 +297,10 @@ class CandidateGraphBuilder( ) } + val branchTips = LinkedHashMap() val branches = buildBranches( + branchTips = branchTips, statesById = statesById, parentOf = parentOf, producedBy = producedBy, @@ -293,10 +312,18 @@ class CandidateGraphBuilder( passBaseEpoch = passBaseEpoch, ) - return CandidateGraph(branches, outcomes.values.toList(), statesById) + return CandidateGraph( + branches = branches, + outcomes = outcomes.values.toList(), + statesById = statesById, + parentOf = parentOf, + producedBy = producedBy, + branchTips = branchTips, + ) } private fun buildBranches( + branchTips: MutableMap, statesById: Map, parentOf: Map, producedBy: Map, @@ -356,6 +383,7 @@ class CandidateGraphBuilder( tipDigest = engine.commitDigest(producedBy.getValue(tipId).bytes), witnessesByEpoch = perEpoch, ).takeIf { it.isEligible(passBaseEpoch, policy) } + ?.also { branchTips[it.tipDigestHex] = tipId } } } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt new file mode 100644 index 0000000000..0307150f2b --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt @@ -0,0 +1,472 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupState +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.utils.sha256.sha256 +import kotlinx.coroutines.sync.Mutex +import kotlinx.coroutines.sync.withLock +import kotlin.time.TimeSource + +/** What happened to a commit offered to the engine. */ +enum class ConvergenceAdmission { + /** Not a candidate here: nothing retained authenticates it. */ + NOT_A_CANDIDATE, + + /** Admitted into an open pass. Resolution happens at the pass cutoff. */ + ADMITTED, + + /** Already in the current batch. Admitted as ordinary; changes nothing. */ + DUPLICATE, +} + +/** The outcome of resolving one frozen pass. */ +class ConvergenceResolution( + val groupId: HexKey, + val status: ConvergenceStatus, + val lifecycle: GroupLifecycleState, + /** Epoch of the state that is canonical after resolution. */ + val canonicalEpoch: Long, + /** True when selection replaced the state that was canonical when the pass opened. */ + val rewound: Boolean, + val outcomes: List, +) + +/** + * Runs Marmot convergence for the groups a client holds + * (`protocol-core/convergence.md`). + * + * ## The shape, and why it is not "buffer every commit for a second" + * + * A literal reading of the bounded pass would hold EVERY inbound commit for the + * quiescence window before applying it, taxing the common case — one commit, no + * competitor — with a second of latency for nothing. + * + * It does not have to. MLS gives us the fork detector for free: once a commit + * has been applied, a competitor authored against the same parent no longer + * authenticates against the new tip, but it still authenticates against the + * RETAINED parent. So this engine applies linear commits eagerly and keeps a + * bounded window of the states they came from; a commit that authenticates + * against a retained state rather than the tip IS the fork, and only then does + * a pass open. + * + * That is not an optimization that changes the answer. When the pass resolves, + * the incumbent branch is rebuilt from the same retained window and compared by + * the same six-step rule as its challengers, so a client that saw the commits + * in one order reaches the state a client that saw them in the other order + * reaches. Eager application only decides which branch is provisionally + * displayed while the pass runs. + * + * ## What it deliberately does not do + * + * Transport metadata never enters any decision here. The superseded MIP-era + * rule broke same-epoch ties on the outer Nostr `created_at` and event id — + * both attacker-chosen, and neither authenticated by MLS. + */ +class MarmotConvergenceEngine( + private val groupManager: MlsGroupManager, + private val policy: ConvergencePolicy = ConvergencePolicy.V1, + /** Local monotonic milliseconds. Injected so pass timing is testable. */ + private val monotonicNowMs: () -> Long = { ORIGIN.elapsedNow().inWholeMilliseconds }, +) { + private val stateEngine = MlsCandidateStateEngine() + private val builder = CandidateGraphBuilder(stateEngine, policy) + private val mutex = Mutex() + private val contexts = mutableMapOf() + + private class GroupContext { + /** Retained canonical states, oldest first. The last one is the tip. */ + val retained = ArrayDeque() + + /** The commit that produced each retained state after the first, oldest first. */ + val canonicalCommits = ArrayDeque() + + /** Commits that did not extend the tip but did authenticate somewhere retained. */ + val divergent = LinkedHashMap() + + /** stateId -> the accounts that sent a validated payload decrypting there. */ + val witnesses = mutableMapOf>() + + var pass: ConvergencePass? = null + var lifecycle: GroupLifecycleState = GroupLifecycleState.STABLE + } + + companion object { + /** + * Arbitrary origin for the default clock. A MONOTONIC one, never a wall + * clock: the pass rules exist so a clock adjustment cannot shorten or + * extend a window. + */ + private val ORIGIN = TimeSource.Monotonic.markNow() + } + + /** + * How many states to keep. One more than the rollback horizon, so a branch + * forking the full [ConvergencePolicy.maxRewindCommits] back still has its + * fork point in the window — without the extra slot the oldest reachable + * fork point would be evicted exactly when it became relevant. + */ + private val windowSize: Int get() = (policy.maxRewindCommits + 1).toInt() + + /** Convergence status for [groupId]; `SETTLED` when no pass is running. */ + suspend fun status(groupId: HexKey): ConvergenceStatus = + mutex.withLock { + contexts[groupId]?.pass?.status(monotonicNowMs(), resolutionComplete = false) + ?: ConvergenceStatus.SETTLED + } + + /** Lifecycle state for [groupId], including the pass's `Stable -> Recovering` move. */ + suspend fun lifecycle(groupId: HexKey): GroupLifecycleState = + mutex.withLock { + val ctx = contexts[groupId] ?: return@withLock GroupLifecycleState.STABLE + ctx.pass?.lifecycleWhileRunning(ctx.lifecycle) ?: ctx.lifecycle + } + + /** Groups with a pass currently open, and the base epoch each snapshotted. */ + suspend fun openPasses(): Map = + mutex.withLock { + contexts.mapNotNull { (id, ctx) -> ctx.pass?.let { id to it.passBaseEpoch } }.toMap() + } + + /** + * Seed the retained window with a group's current state. + * + * Called when a group is created, joined, or restored from disk. Without a + * seed the first inbound commit has no retained parent and convergence + * cannot see a fork at all. + */ + suspend fun trackGroup(groupId: HexKey) = + mutex.withLock { + val state = groupManager.snapshot(groupId) ?: return@withLock + val ctx = contexts.getOrPut(groupId) { GroupContext() } + if (ctx.retained.isEmpty()) ctx.retained.addLast(state) + } + + /** + * Record that [commitBytes] was applied to canonical state, moving the + * window forward. + * + * [preState] is the state it was applied TO — the parent a competitor would + * authenticate against, and the reason a losing commit is still resolvable + * after we already moved on. + */ + suspend fun recordApplied( + groupId: HexKey, + commitBytes: ByteArray, + sourceEpoch: Long, + preState: MlsGroupState?, + ) = mutex.withLock { + val ctx = contexts.getOrPut(groupId) { GroupContext() } + if (preState != null && ctx.retained.none { sameState(it, preState) }) { + ctx.retained.addLast(preState) + } + val post = groupManager.snapshot(groupId) + if (post != null && ctx.retained.none { sameState(it, post) }) { + ctx.retained.addLast(post) + } + ctx.canonicalCommits.addLast(candidateOf(commitBytes, sourceEpoch)) + trim(ctx) + } + + /** + * Offer a commit that did NOT extend the canonical tip. + * + * Returns [ConvergenceAdmission.NOT_A_CANDIDATE] when nothing retained + * authenticates it — that is an echo of something we already applied, or a + * commit from before our retention window, and neither is a fork. + */ + suspend fun offerDivergent( + groupId: HexKey, + commitBytes: ByteArray, + sourceEpoch: Long, + ): ConvergenceAdmission = + mutex.withLock { + val ctx = contexts.getOrPut(groupId) { GroupContext() } + val candidate = candidateOf(commitBytes, sourceEpoch) + if (ctx.divergent.containsKey(candidate.id)) { + ctx.pass?.admit(candidate, InputRelevance.ORDINARY) + return@withLock ConvergenceAdmission.DUPLICATE + } + + // Parentage is derived, not claimed: a commit is a candidate here + // only because some retained state actually authenticates it. + val hasParent = ctx.retained.any { stateEngine.authenticatesAgainst(it, commitBytes) } + if (!hasParent) return@withLock ConvergenceAdmission.NOT_A_CANDIDATE + + ctx.divergent[candidate.id] = candidate + val pass = ctx.pass ?: openPass(groupId, ctx) + // A new divergent commit can add an eligible edge, so it restarts + // quiescence. Its admission may be refused if the pass already + // closed — that input simply belongs to the next pass, and it stays + // in `divergent` for that pass to pick up. + pass.admit(candidate, InputRelevance.SELECTION_RELEVANT) + ConvergenceAdmission.ADMITTED + } + + /** + * Record that a validated app payload from [senderAccount] decrypted + * against [stateId]. + * + * Witness weight is what lets a branch members are actually talking on beat + * a slightly longer branch nobody used, so a genuinely NEW (state, account) + * pair is selection-relevant; a repeat cannot change a capped score and is + * ordinary. + */ + suspend fun recordWitness( + groupId: HexKey, + stateId: String, + senderAccount: HexKey, + ) = mutex.withLock { + val ctx = contexts.getOrPut(groupId) { GroupContext() } + val added = ctx.witnesses.getOrPut(stateId) { mutableSetOf() }.add(senderAccount) + val observation = WitnessObservation(stateId, senderAccount) + ctx.pass?.admit( + observation, + if (added) InputRelevance.SELECTION_RELEVANT else InputRelevance.ORDINARY, + ) + Unit + } + + /** Resolve [groupId]'s pass if its cutoff has passed. Null when nothing is due. */ + suspend fun settleIfDue(groupId: HexKey): ConvergenceResolution? { + val due = + mutex.withLock { + val pass = contexts[groupId]?.pass ?: return null + pass.isClosed(monotonicNowMs()) + } + return if (due) settle(groupId) else null + } + + /** Resolve every group whose pass cutoff has passed. */ + suspend fun settleAllDue(): List { + val candidates = mutex.withLock { contexts.keys.toList() } + return candidates.mapNotNull { settleIfDue(it) } + } + + /** + * Resolve [groupId]'s pass now, without waiting for its cutoff. + * + * The pass timers are scheduling, not semantics: closing one early changes + * WHEN the batch is resolved, never what the frozen batch resolves to. + */ + suspend fun settle(groupId: HexKey): ConvergenceResolution? { + // Graph construction restores groups and replays MLS bytes, which is + // slow enough that holding the engine mutex across it would stall every + // other group. Snapshot the inputs under the lock, resolve outside it, + // then commit the result under the lock again. + val inputs = mutex.withLock { freezeInputs(groupId) } ?: return null + + val graph = + builder.build( + retainedStates = inputs.retained, + canonicalStateId = inputs.baseId, + canonicalAncestry = inputs.ancestry, + commits = inputs.commits, + witnesses = inputs.witnesses, + canonicalTipEpoch = inputs.tipEpoch, + passBaseEpoch = inputs.passBaseEpoch, + ) + + val selected = BranchSelector.select(graph.branches, inputs.passBaseEpoch, policy) + val selectedTipId = selected?.let { graph.branchTips[it.tipDigestHex] } + val rewound = selectedTipId != null && selectedTipId != inputs.tipId + + if (rewound) { + groupManager.installState(groupId, graph.statesById.getValue(selectedTipId)) + } + + return mutex.withLock { + val ctx = contexts[groupId] ?: return@withLock null + if (rewound && selectedTipId != null) { + adoptBranch(ctx, graph, selectedTipId, inputs.baseId) + } + ctx.divergent.clear() + ctx.pass = null + val epoch = groupManager.getGroup(groupId)?.epoch ?: inputs.tipEpoch + ConvergenceResolution( + groupId = groupId, + status = ConvergenceStatus.SETTLED, + lifecycle = ctx.lifecycle, + canonicalEpoch = epoch, + rewound = rewound, + outcomes = graph.outcomes, + ) + } + } + + /** Forget everything about [groupId] — used when leaving or deleting a group. */ + suspend fun forget(groupId: HexKey) = + mutex.withLock { + contexts.remove(groupId) + Unit + } + + suspend fun clear() = + mutex.withLock { + contexts.clear() + } + + // --- internals --- + + private class FrozenInputs( + val retained: List, + val baseId: String, + val ancestry: List, + val commits: List, + val witnesses: List, + val tipId: String, + val tipEpoch: Long, + val passBaseEpoch: Long, + ) + + /** + * Freeze the pass and assemble what the graph is built over. + * + * The subtle part is the base. Branches are measured as divergences from + * the canonical path, so if the CURRENT tip were the base the incumbent + * would not be a branch at all and could not be compared to its + * challengers. The base is therefore the newest retained state a divergent + * commit authenticates against — everything after it is contested, the + * incumbent included, and both sides are rebuilt from the same fork point. + */ + private fun freezeInputs(groupId: HexKey): FrozenInputs? { + val ctx = contexts[groupId] ?: return null + val pass = ctx.pass ?: return null + pass.freeze() + + val retained = ctx.retained.toList() + if (retained.isEmpty()) return null + val tip = retained.last() + val tipId = stateEngine.stateId(tip) + + val divergent = ctx.divergent.values.toList() + val baseIndex = + retained.indices.lastOrNull { i -> + divergent.any { stateEngine.authenticatesAgainst(retained[i], it.bytes) } + } ?: return null + + val ancestry = retained.take(baseIndex + 1).map { stateEngine.stateId(it) } + // The canonical commits applied at or after the base rebuild the + // incumbent branch, so it is scored by the same rule as the others + // instead of winning by being already applied. + val canonicalSuffix = ctx.canonicalCommits.drop(baseIndex) + + return FrozenInputs( + retained = retained, + baseId = ancestry.last(), + ancestry = ancestry, + commits = canonicalSuffix + divergent, + witnesses = ctx.witnesses.flatMap { (s, accounts) -> accounts.map { WitnessObservation(s, it) } }, + tipId = tipId, + tipEpoch = stateEngine.epoch(tip), + passBaseEpoch = pass.passBaseEpoch, + ) + } + + /** Re-anchor the retained window onto the branch that just won. */ + private fun adoptBranch( + ctx: GroupContext, + graph: CandidateGraph, + tipId: String, + baseId: String, + ) { + val path = mutableListOf() + var cursor: String? = tipId + while (cursor != null && cursor != baseId) { + path.add(cursor) + cursor = graph.parentOf[cursor] + } + if (cursor != baseId) return + path.reverse() + + val keepStates = mutableListOf() + val keepCommits = mutableListOf() + for (state in ctx.retained) { + keepStates.add(state) + if (stateEngine.stateId(state) == baseId) break + } + // Canonical commits run parallel to the states after the first, so the + // prefix to keep is one shorter than the retained prefix. + repeat(minOf(keepStates.size - 1, ctx.canonicalCommits.size)) { + keepCommits.add(ctx.canonicalCommits[it]) + } + for (stateId in path) { + keepStates.add(graph.statesById.getValue(stateId)) + graph.producedBy[stateId]?.let { keepCommits.add(it) } + } + + ctx.retained.clear() + ctx.retained.addAll(keepStates) + ctx.canonicalCommits.clear() + ctx.canonicalCommits.addAll(keepCommits) + trim(ctx) + } + + private fun openPass( + groupId: HexKey, + ctx: GroupContext, + ): ConvergencePass { + val baseEpoch = groupManager.getGroup(groupId)?.epoch ?: 0L + val pass = ConvergencePass(baseEpoch, policy, monotonicNowMs) + // A divergent commit that authenticates against a retained state IS an + // eligible divergent edge, which is exactly what makes this a recovery + // rather than a linear pass. + pass.markForkDetected() + ctx.pass = pass + ctx.lifecycle = pass.lifecycleWhileRunning(ctx.lifecycle) + return pass + } + + /** + * Keep the window bounded, holding the invariant the base search relies on: + * `canonicalCommits[i]` is the commit that turned `retained[i]` into + * `retained[i + 1]`, so there is always exactly one fewer commit than state. + */ + private fun trim(ctx: GroupContext) { + while (ctx.canonicalCommits.size > ctx.retained.size - 1 && ctx.canonicalCommits.isNotEmpty()) { + ctx.canonicalCommits.removeFirst() + } + while (ctx.retained.size > windowSize) { + ctx.retained.removeFirst() + if (ctx.canonicalCommits.isNotEmpty()) ctx.canonicalCommits.removeFirst() + } + } + + private fun candidateOf( + commitBytes: ByteArray, + sourceEpoch: Long, + ) = CandidateCommit( + // The Marmot message id is SHA-256 over the MLS message bytes, and for + // a commit that is byte-for-byte its commit_digest, so there is no + // second hash to keep in sync. + id = sha256(commitBytes).toHexKey(), + bytes = commitBytes, + sourceEpoch = sourceEpoch, + ) + + private fun sameState( + a: MlsGroupState, + b: MlsGroupState, + ) = a.groupContext.toTlsBytes().contentEquals(b.groupContext.toTlsBytes()) +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/CommitOrderingTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/CommitOrderingTest.kt deleted file mode 100644 index 558ea528ba..0000000000 --- a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/CommitOrderingTest.kt +++ /dev/null @@ -1,195 +0,0 @@ -/* - * Copyright (c) 2025 Vitor Pamplona - * - * Permission is hereby granted, free of charge, to any person obtaining a copy of - * this software and associated documentation files (the "Software"), to deal in - * the Software without restriction, including without limitation the rights to use, - * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the - * Software, and to permit persons to whom the Software is furnished to do so, - * subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR - * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ -package com.vitorpamplona.quartz.marmot - -import com.vitorpamplona.quartz.marmot.mip03GroupMessages.CommitOrdering -import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEvent -import kotlinx.coroutines.test.runTest -import kotlin.test.Test -import kotlin.test.assertEquals -import kotlin.test.assertFalse -import kotlin.test.assertNull -import kotlin.test.assertTrue - -/** - * Tests for deterministic commit conflict resolution (MIP-03). - */ -class CommitOrderingTest { - private val groupId = "abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789" - - private fun makeGroupEvent( - id: String, - createdAt: Long, - ): GroupEvent = - GroupEvent( - id = id.padEnd(64, '0'), - pubKey = "a".repeat(64), - createdAt = createdAt, - tags = arrayOf(arrayOf("h", groupId)), - content = "encrypted", - sig = "s".repeat(128), - ) - - // ===== selectWinner ===== - - @Test - fun testSelectWinner_EmptyList() { - assertNull(CommitOrdering.selectWinner(emptyList())) - } - - @Test - fun testSelectWinner_SingleCommit() { - val commit = makeGroupEvent("aaa", 1000) - assertEquals(commit, CommitOrdering.selectWinner(listOf(commit))) - } - - @Test - fun testSelectWinner_LowestTimestampWins() { - val early = makeGroupEvent("bbb", 1000) - val late = makeGroupEvent("aaa", 2000) - - // Early wins even though its id is "larger" - assertEquals(early, CommitOrdering.selectWinner(listOf(late, early))) - assertEquals(early, CommitOrdering.selectWinner(listOf(early, late))) - } - - @Test - fun testSelectWinner_SameTimestamp_SmallestIdWins() { - val smallId = makeGroupEvent("111", 1000) // id starts with 1 - val largeId = makeGroupEvent("fff", 1000) // id starts with f - - assertEquals(smallId, CommitOrdering.selectWinner(listOf(largeId, smallId))) - assertEquals(smallId, CommitOrdering.selectWinner(listOf(smallId, largeId))) - } - - @Test - fun testSelectWinner_ThreeCompetitors() { - val a = makeGroupEvent("ccc", 1000) - val b = makeGroupEvent("aaa", 1000) // Same timestamp, smallest id - val c = makeGroupEvent("bbb", 999) // Earliest timestamp - - // c wins (earliest timestamp) - assertEquals(c, CommitOrdering.selectWinner(listOf(a, b, c))) - } - - // ===== isWinner ===== - - @Test - fun testIsWinner() { - val winner = makeGroupEvent("aaa", 999) - val loser = makeGroupEvent("bbb", 1000) - val competitors = listOf(winner, loser) - - assertTrue(CommitOrdering.isWinner(winner, competitors)) - assertFalse(CommitOrdering.isWinner(loser, competitors)) - } - - @Test - fun testIsWinner_EmptyCompetitors() { - val commit = makeGroupEvent("aaa", 1000) - assertFalse(CommitOrdering.isWinner(commit, emptyList())) - } - - // ===== comparator ordering ===== - - @Test - fun testComparatorSortsCorrectly() { - val events = - listOf( - makeGroupEvent("ccc", 3000), - makeGroupEvent("aaa", 1000), - makeGroupEvent("bbb", 1000), - makeGroupEvent("ddd", 2000), - ) - - val sorted = events.sortedWith(CommitOrdering.comparator) - - // 1. aaa@1000 (lowest timestamp, then smallest id) - // 2. bbb@1000 (same timestamp, next id) - // 3. ddd@2000 - // 4. ccc@3000 - assertEquals("aaa", sorted[0].id.take(3)) - assertEquals("bbb", sorted[1].id.take(3)) - assertEquals("ddd", sorted[2].id.take(3)) - assertEquals("ccc", sorted[3].id.take(3)) - } - - // ===== EpochCommitTracker ===== - - @Test - fun testEpochCommitTracker_Basic() = - runTest { - val tracker = CommitOrdering.EpochCommitTracker() - val epoch1Commit1 = makeGroupEvent("bbb", 1000) - val epoch1Commit2 = makeGroupEvent("aaa", 1001) - - tracker.addCommit(groupId, 1L, epoch1Commit1) - tracker.addCommit(groupId, 1L, epoch1Commit2) - - assertEquals(2, tracker.pendingForEpoch(groupId, 1L).size) - assertEquals(0, tracker.pendingForEpoch(groupId, 2L).size) - - // Resolve: epoch1Commit1 wins (earlier timestamp) - val winner = tracker.resolve(groupId, 1L) - assertEquals(epoch1Commit1, winner) - } - - @Test - fun testEpochCommitTracker_MultipleEpochs() = - runTest { - val tracker = CommitOrdering.EpochCommitTracker() - val e1 = makeGroupEvent("aaa", 1000) - val e2 = makeGroupEvent("bbb", 2000) - - tracker.addCommit(groupId, 1L, e1) - tracker.addCommit(groupId, 2L, e2) - - val expectedKeys = - setOf( - CommitOrdering.GroupEpochKey(groupId, 1L), - CommitOrdering.GroupEpochKey(groupId, 2L), - ) - assertEquals(expectedKeys, tracker.pendingGroupEpochs()) - - tracker.clearEpoch(groupId, 1L) - assertEquals(setOf(CommitOrdering.GroupEpochKey(groupId, 2L)), tracker.pendingGroupEpochs()) - } - - @Test - fun testEpochCommitTracker_ClearAll() = - runTest { - val tracker = CommitOrdering.EpochCommitTracker() - tracker.addCommit(groupId, 1L, makeGroupEvent("aaa", 1000)) - tracker.addCommit(groupId, 2L, makeGroupEvent("bbb", 2000)) - - tracker.clear() - - assertTrue(tracker.pendingGroupEpochs().isEmpty()) - assertNull(tracker.resolve(groupId, 1L)) - } - - @Test - fun testEpochCommitTracker_ResolveEmpty() = - runTest { - val tracker = CommitOrdering.EpochCommitTracker() - assertNull(tracker.resolve(groupId, 999L)) - } -} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt new file mode 100644 index 0000000000..3d740ad01a --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt @@ -0,0 +1,326 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot + +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageRotationManager +import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData +import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEvent +import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEventEncryption +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager +import com.vitorpamplona.quartz.marmot.protocolCore.ConvergencePolicy +import com.vitorpamplona.quartz.marmot.protocolCore.ConvergenceStatus +import com.vitorpamplona.quartz.marmot.protocolCore.GroupLifecycleState +import com.vitorpamplona.quartz.marmot.protocolCore.MarmotConvergenceEngine +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.utils.sha256.sha256 +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertFalse +import kotlin.test.assertIs +import kotlin.test.assertNotEquals +import kotlin.test.assertTrue + +/** + * End-to-end convergence through [MarmotInboundProcessor]. + * + * The property that matters is order independence: two members who receive the + * same two competing commits in opposite orders must end on the same group + * state. That is what the superseded `created_at` / event-id tiebreak could not + * guarantee — both are transport metadata a sender picks freely. + */ +class MarmotConvergenceWiringTest { + private val groupId = "c".repeat(64) + + /** A 3-member group and two commits authored from the SAME epoch. */ + private class Fork( + val observerStateBytes: ByteArray, + val commitA: GroupEvent, + val commitB: GroupEvent, + val forkEpoch: Long, + ) + + private fun account(seed: Byte) = ByteArray(32) { seed } + + private fun groupData(vararg admins: String) = MarmotGroupData(nostrGroupId = groupId, adminPubkeys = admins.toList()).toExtension() + + /** + * Build a genuine fork. + * + * Alice and Bob are both members at the same epoch and each authors a + * commit against it, neither having seen the other's. Carol is the neutral + * observer; her state at the fork epoch is captured as bytes so two + * identical observers can be restored from it and fed in opposite orders. + */ + private suspend fun buildFork(): Fork { + val aliceMgr = MlsGroupManager(TestGroupStateStore()) + val bobMgr = MlsGroupManager(TestGroupStateStore()) + val carolMgr = MlsGroupManager(TestGroupStateStore()) + val outbound = MarmotOutboundProcessor(aliceMgr) + + aliceMgr.createGroup(groupId, account(0x0a)) + // The Welcome only carries a derivable nostrGroupId once the group data + // extension is installed, and the admin policy has to name a member — + // so Bob is promoted only after he actually holds a leaf. + aliceMgr.updateGroupExtensions(groupId, listOf(groupData(account(0x0a).toHexKey()))) + + val bobBundle = aliceMgr.getGroup(groupId)!!.createKeyPackage(account(0x0b), ByteArray(0)) + val addBob = aliceMgr.addMember(groupId, bobBundle.keyPackage.toTlsBytes()) + bobMgr.processWelcome(addBob.welcomeBytes!!, bobBundle) + + // Both Alice and Bob must be admins: the fork is two ADDs, and an add + // by a non-admin is an authorization failure, not a candidate branch. + val promoteBob = + aliceMgr.updateGroupExtensions( + groupId, + listOf(groupData(account(0x0a).toHexKey(), account(0x0b).toHexKey())), + ) + bobMgr.processFramedCommit(groupId, promoteBob.framedCommitBytes) + + val carolBundle = aliceMgr.getGroup(groupId)!!.createKeyPackage(account(0x0c), ByteArray(0)) + val addCarol = aliceMgr.addMember(groupId, carolBundle.keyPackage.toTlsBytes()) + // Bob is already a member, so he applies the add-Carol commit rather + // than joining through it. + bobMgr.processFramedCommit(groupId, addCarol.framedCommitBytes) + carolMgr.processWelcome(addCarol.welcomeBytes!!, carolBundle) + + val forkEpoch = aliceMgr.getGroup(groupId)!!.epoch + assertEquals(forkEpoch, bobMgr.getGroup(groupId)!!.epoch) + assertEquals(forkEpoch, carolMgr.getGroup(groupId)!!.epoch) + + // Two adds authored from the SAME epoch by two different members. + val daveBundle = + aliceMgr.getGroup(groupId)!!.createKeyPackage(account(0x0d), ByteArray(32) { 3 }) + val eveBundle = + bobMgr.getGroup(groupId)!!.createKeyPackage(account(0x0e), ByteArray(32) { 4 }) + + val aliceCommit = aliceMgr.addMember(groupId, daveBundle.keyPackage.toTlsBytes()) + val bobCommit = bobMgr.addMember(groupId, eveBundle.keyPackage.toTlsBytes()) + + val eventA = + outbound.buildCommitEvent(groupId, aliceCommit.framedCommitBytes, aliceCommit.preCommitExporterSecret) + val eventB = + outbound.buildCommitEvent(groupId, bobCommit.framedCommitBytes, bobCommit.preCommitExporterSecret) + + return Fork( + observerStateBytes = carolMgr.snapshot(groupId)!!.encodeTls(), + commitA = eventA.signedEvent, + commitB = eventB.signedEvent, + forkEpoch = forkEpoch, + ) + } + + /** An observer restored from [stateBytes], with convergence already seeded. */ + private class Observer( + val manager: MlsGroupManager, + val inbound: MarmotInboundProcessor, + ) + + private suspend fun observer( + stateBytes: ByteArray, + nowMs: () -> Long = { 0L }, + ): Observer { + val store = TestGroupStateStore() + store.save(groupId, stateBytes) + val manager = MlsGroupManager(store) + manager.restoreAll() + val inbound = + MarmotInboundProcessor( + manager, + KeyPackageRotationManager(), + MarmotConvergenceEngine(manager, ConvergencePolicy.V1, nowMs), + ) + inbound.trackGroup(groupId) + return Observer(manager, inbound) + } + + private fun groupContextOf(manager: MlsGroupManager) = manager.snapshot(groupId)!!.groupContext.toTlsBytes() + + /** + * The headline property. Two observers, the same two commits, opposite + * arrival orders, one final state. + */ + @Test + fun twoObserversConvergeRegardlessOfArrivalOrder() = + runBlocking { + val fork = buildFork() + + val first = observer(fork.observerStateBytes) + val second = observer(fork.observerStateBytes) + + // Whoever arrives first is applied eagerly; the other is the fork. + assertIs(first.inbound.processGroupEvent(fork.commitA)) + val firstSecond = first.inbound.processGroupEvent(fork.commitB) + assertIs(firstSecond) + assertTrue(firstSecond.forkDetected, "the losing commit must open a pass, not be discarded") + + assertIs(second.inbound.processGroupEvent(fork.commitB)) + assertIs(second.inbound.processGroupEvent(fork.commitA)) + + val r1 = first.inbound.resolveConvergence(groupId) + val r2 = second.inbound.resolveConvergence(groupId) + assertEquals(ConvergenceStatus.SETTLED, r1!!.status) + assertEquals(ConvergenceStatus.SETTLED, r2!!.status) + assertEquals(r1.canonicalEpoch, r2.canonicalEpoch) + + assertContentEquals( + groupContextOf(first.manager), + groupContextOf(second.manager), + "both observers must land on the same GroupContext", + ) + // Exactly one of the two had to rewind — they applied different + // commits eagerly and only one branch can win. + assertNotEquals(r1.rewound, r2.rewound) + } + + /** + * A commit that lost a race is never silently dropped: it opens a recovery + * pass, and the group reports `Recovering` for as long as that pass runs. + */ + @Test + fun aLosingCommitOpensARecoveryPass() = + runBlocking { + val fork = buildFork() + val obs = observer(fork.observerStateBytes) + + assertEquals(GroupLifecycleState.STABLE, obs.inbound.groupLifecycle(groupId)) + obs.inbound.processGroupEvent(fork.commitA) + assertTrue(obs.inbound.openConvergencePasses().isEmpty(), "a linear commit opens no pass") + + obs.inbound.processGroupEvent(fork.commitB) + assertEquals(mapOf(groupId to fork.forkEpoch + 1), obs.inbound.openConvergencePasses()) + assertEquals(ConvergenceStatus.SYNCING, obs.inbound.convergenceStatus(groupId)) + assertEquals(GroupLifecycleState.RECOVERING, obs.inbound.groupLifecycle(groupId)) + + obs.inbound.resolveConvergence(groupId) + assertTrue(obs.inbound.openConvergencePasses().isEmpty()) + assertEquals(ConvergenceStatus.SETTLED, obs.inbound.convergenceStatus(groupId)) + } + + /** + * A pass settles on its own once quiescence elapses, without anyone forcing + * it — driven by the monotonic clock, so the test is deterministic rather + * than a sleep. + */ + @Test + fun aPassSettlesAtItsQuiescenceCutoff() = + runBlocking { + val fork = buildFork() + var now = 0L + val obs = observer(fork.observerStateBytes) { now } + + obs.inbound.processGroupEvent(fork.commitA) + obs.inbound.processGroupEvent(fork.commitB) + assertEquals(1, obs.inbound.openConvergencePasses().size) + + // Still inside the quiescence window: nothing is due. + now = ConvergencePolicy.V1.settlementQuiescenceMs - 1 + assertTrue(obs.inbound.settleDueConvergence().isEmpty()) + assertEquals(1, obs.inbound.openConvergencePasses().size) + + now = ConvergencePolicy.V1.settlementQuiescenceMs + val settled = obs.inbound.settleDueConvergence() + assertEquals(1, settled.size) + assertEquals(ConvergenceStatus.SETTLED, settled.single().status) + assertTrue(obs.inbound.openConvergencePasses().isEmpty()) + } + + /** + * A plain relay redelivery is still just a duplicate. Convergence only + * claims a commit when a RETAINED state authenticates it, and an echo's + * parent was consumed by the very commit it echoes. + */ + @Test + fun anEchoOfAnAppliedCommitIsNotTreatedAsAFork() = + runBlocking { + val fork = buildFork() + val obs = observer(fork.observerStateBytes) + + assertIs(obs.inbound.processGroupEvent(fork.commitA)) + + // Same MLS bytes, a different Nostr event: exactly what a second + // relay delivers, and what the event-id dedup could never catch. + val republished = MarmotOutboundProcessor(obs.manager) + val echo = + republished + .buildCommitEvent( + groupId, + GroupEventEncryption.decrypt( + fork.commitA.content, + obs.manager.retainedExporterSecrets(groupId).first(), + ), + obs.manager.retainedExporterSecrets(groupId).first(), + ).signedEvent + assertNotEquals(fork.commitA.id, echo.id) + + assertIs(obs.inbound.processGroupEvent(echo)) + assertTrue(obs.inbound.openConvergencePasses().isEmpty(), "an echo must not open a pass") + } + + /** + * Selection compares the incumbent by the same rule as its challenger. The + * branch it picks is a function of the commits, so the observer that had + * already applied the winner does not rewind, and the one that had not, + * does. + */ + @Test + fun theIncumbentBranchIsScoredNotAssumed() = + runBlocking { + val fork = buildFork() + val obs = observer(fork.observerStateBytes) + + obs.inbound.processGroupEvent(fork.commitA) + val afterEager = groupContextOf(obs.manager) + obs.inbound.processGroupEvent(fork.commitB) + + val resolution = obs.inbound.resolveConvergence(groupId)!! + val afterSettle = groupContextOf(obs.manager) + + if (resolution.rewound) { + assertFalse(afterEager.contentEquals(afterSettle), "a rewind must change the state") + } else { + assertContentEquals(afterEager, afterSettle, "keeping the incumbent must change nothing") + } + // Either way both commits were accounted for, not dropped. + assertEquals(2, resolution.outcomes.size) + assertEquals( + setOf(sha256Hex(fork.commitA, obs), sha256Hex(fork.commitB, obs)), + resolution.outcomes.map { it.commitId }.toSet(), + ) + } + + /** The Marmot message id of a commit event, as the engine computes it. */ + private suspend fun sha256Hex( + event: GroupEvent, + obs: Observer, + ): String { + val keys = listOf(obs.manager.exporterSecret(groupId)) + obs.manager.retainedExporterSecrets(groupId) + for (key in keys) { + try { + return sha256(GroupEventEncryption.decrypt(event.content, key)).toHexKey() + } catch (_: Exception) { + // try the next retained key + } + } + error("no key decrypted the commit event") + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotPipelineTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotPipelineTest.kt index 106a33f986..bb5fd83ec0 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotPipelineTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotPipelineTest.kt @@ -25,6 +25,8 @@ import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEvent import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEventEncryption import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore +import com.vitorpamplona.quartz.marmot.protocolCore.ConvergenceStatus +import com.vitorpamplona.quartz.marmot.protocolCore.GroupLifecycleState import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal @@ -34,6 +36,7 @@ import kotlin.test.assertEquals import kotlin.test.assertIs import kotlin.test.assertNotEquals import kotlin.test.assertNotNull +import kotlin.test.assertNull import kotlin.test.assertTrue /** @@ -524,20 +527,23 @@ class MarmotPipelineTest { } @Test - fun testCommitOrderingWithProcessor() { + fun testConvergenceStartsSettledWithProcessor() { runBlocking { val manager = createGroupManager() manager.createGroup(groupId, "alice".encodeToByteArray()) val keyPackageRotationManager = KeyPackageRotationManager() val inbound = MarmotInboundProcessor(manager, keyPackageRotationManager) + inbound.trackGroup(groupId) - // Initially no pending commits - assertTrue(inbound.pendingCommitGroupEpochs().isEmpty()) + // A group with no competing commits has no pass to run. + assertTrue(inbound.openConvergencePasses().isEmpty()) + assertEquals(ConvergenceStatus.SETTLED, inbound.convergenceStatus(groupId)) + assertEquals(GroupLifecycleState.STABLE, inbound.groupLifecycle(groupId)) + assertNull(inbound.resolveConvergence(groupId)) - // Clear works without error inbound.clearPendingCommits() - assertTrue(inbound.pendingCommitGroupEpochs().isEmpty()) + assertTrue(inbound.openConvergencePasses().isEmpty()) } } From eb1f3c85a3a9b5a185c76ba59b00d727fa375ca1 Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 19:32:36 +0000 Subject: [PATCH 12/79] feat(marmot): trial-decrypt app payloads on retained candidate branches MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Convergence could score witnesses but nothing ever produced one, so the witness steps of the branch comparison were dead code. This wires the producer, and it turned out to need two layers rather than one. The MLS layer is the obvious half: an app message that decrypts on no canonical epoch is tried against the candidate states convergence retains. That set is bounded by the rollback horizon, so a flood of undecryptable ciphertext costs a bounded number of attempts rather than an unbounded key search. Candidate states are now replayed when a divergent commit is admitted, not only at resolution, because witnesses have to accumulate DURING a pass to influence the selection that pass makes. The transport layer is the half that is easy to miss. Marmot's outer ChaCha20 layer is keyed by a per-epoch exporter secret, so an event published on a fork does not merely fail to decrypt — it does not peel at all, and never reaches the MLS layer to be tried. Retained candidate states now also contribute outer keys, derived on demand rather than stored, so the release condition stays in one place: when the state goes, the key goes with it. A payload that decrypts on a candidate branch is NOT delivered — the canonical state contradicts it — but it is not dropped either. It is reported as living on a branch, and counted as a witness only if it passes the same author check a delivered payload does. Decryption alone is not a witness: without that check one member could mint many sender identities and buy the witness quorum outright. Canonical decryptions now witness too. The incumbent is rebuilt and rescored at every resolution, so counting only divergent branches would have let any fork win the witness steps unopposed. Writing the tests corrected one of my own premises: a payload for a branch we do not retain is `transport_deferred`, not a terminal error. The commit that makes it readable may still arrive, and retaining that branch is exactly the change of transport decryption context the spec says must trigger a retry — so the test now asserts the deferral and then the successful retry. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../loggedIn/DecryptAndIndexProcessor.kt | 12 ++ .../amethyst/commons/marmot/MarmotIngest.kt | 3 + .../amethyst/commons/marmot/MarmotManager.kt | 1 + .../quartz/marmot/MarmotInboundProcessor.kt | 124 ++++++++++--- .../protocolCore/MarmotConvergenceEngine.kt | 170 ++++++++++++++++++ .../marmot/MarmotConvergenceWiringTest.kt | 105 +++++++++++ 6 files changed, 393 insertions(+), 22 deletions(-) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt index f2611d60f9..ea018b04d9 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt @@ -764,6 +764,18 @@ class GroupEventHandler( } } + is GroupEventResult.AppMessageOnCandidateBranch -> { + // Decrypted on a branch that is not canonical. Not shown: + // the canonical state contradicts it. If convergence later + // selects that branch the message arrives again through + // the normal path, so nothing is lost by not rendering it + // now. + Log.d("MarmotDbg") { + "GroupEventHandler.add: app payload on candidate branch for group=${result.groupId.take(8)}… " + + "epoch=${result.epoch} witness=${result.countedAsWitness}" + } + } + is GroupEventResult.Error -> { Log.w("MarmotDbg") { "GroupEventHandler.add: ERROR ${result.message}" } } diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt index 20c6492f0e..ac51cca3a3 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt @@ -155,6 +155,9 @@ private suspend fun MarmotManager.ingestGroupEvent(ge: GroupEvent): MarmotIngest is GroupEventResult.Duplicate, is GroupEventResult.CommitPending, + // Decrypted only on a losing branch: real protocol input (it may have + // witnessed for that branch), but never application output. + is GroupEventResult.AppMessageOnCandidateBranch, -> { MarmotIngestResult.Ignored } diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 99fe7feda7..071eb00dc7 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -179,6 +179,7 @@ class MarmotManager( is GroupEventResult.CommitPending, is GroupEventResult.Duplicate, is GroupEventResult.UndecryptableOuterLayer, + is GroupEventResult.AppMessageOnCandidateBranch, is GroupEventResult.Error, -> {} } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt index 484266393d..385a85744e 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt @@ -114,6 +114,24 @@ sealed class GroupEventResult { val senderLeafIndex: Int, ) : GroupEventResult() + /** + * An app payload that decrypted only on a losing candidate branch. + * + * `protocol-core/inbound-processing.md` is explicit that this is NOT a + * delivery — rendering it would show the application a message the + * canonical state contradicts. It is still protocol input: if it passed + * the payload checks it counted as an app-payload witness for the branch + * it decrypted on, which is how convergence can prefer a branch members + * actually used. + */ + data class AppMessageOnCandidateBranch( + val groupId: HexKey, + val branchStateId: String, + val epoch: Long, + /** True when it passed the payload checks and was counted as a witness. */ + val countedAsWitness: Boolean, + ) : GroupEventResult() + /** * The event could not be processed. */ @@ -512,35 +530,48 @@ class MarmotInboundProcessor( return when (privMsg.contentType) { ContentType.APPLICATION -> { - // MLS decrypt to get the inner plaintext - val decrypted = groupManager.decrypt(groupId, mlsMessage.toTlsBytes()) - val innerJson = decrypted.content.decodeToString() + val bytes = mlsMessage.toTlsBytes() + val decrypted = groupManager.decryptOrNull(groupId, bytes) + if (decrypted == null) { + // Canonical state and every retained canonical epoch + // failed. Before giving up, try the branches convergence is + // holding — a payload sent on a fork decrypts on no + // canonical epoch by construction. + processCandidateBranchMessage(groupId, bytes) + } else { + val innerJson = decrypted.content.decodeToString() - // MIP-03: if the inner application payload is a Nostr event, - // its `pubkey` field MUST equal the MLS sender's credential - // identity. Reject any mismatch — otherwise a group member - // could mint events claiming a different author. Non-event - // payloads (raw bytes via buildGroupEventFromBytes) bypass - // this check since there is no author field to verify. - val innerEvent = - com.vitorpamplona.quartz.nip01Core.core.Event - .fromJsonOrNull(innerJson) - if (innerEvent != null) { + // MIP-03: if the inner application payload is a Nostr event, + // its `pubkey` field MUST equal the MLS sender's credential + // identity. Reject any mismatch — otherwise a group member + // could mint events claiming a different author. Non-event + // payloads (raw bytes via buildGroupEventFromBytes) bypass + // this check since there is no author field to verify. val senderIdentity = groupManager.memberIdentityHex(groupId, decrypted.senderLeafIndex) - if (senderIdentity == null || innerEvent.pubKey != senderIdentity) { + val innerEvent = Event.fromJsonOrNull(innerJson) + if (innerEvent != null && (senderIdentity == null || innerEvent.pubKey != senderIdentity)) { return GroupEventResult.Error( groupId, "MIP-03: inner event pubkey (${innerEvent.pubKey}) does not match MLS sender identity ($senderIdentity)", ) } - } - GroupEventResult.ApplicationMessage( - groupId = groupId, - innerEventJson = innerJson, - senderLeafIndex = decrypted.senderLeafIndex, - epoch = decrypted.epoch, - ) + // A payload that passed the checks is an app-payload + // witness for the canonical branch at its epoch. The + // incumbent is rebuilt and rescored at every resolution, so + // counting only divergent branches would let any fork win + // the witness steps unopposed. + if (innerEvent != null && senderIdentity != null) { + convergence.recordCanonicalWitness(groupId, decrypted.epoch, senderIdentity) + } + + GroupEventResult.ApplicationMessage( + groupId = groupId, + innerEventJson = innerJson, + senderLeafIndex = decrypted.senderLeafIndex, + epoch = decrypted.epoch, + ) + } } ContentType.COMMIT -> { @@ -593,6 +624,42 @@ class MarmotInboundProcessor( } } + /** + * Try an app message against the retained candidate branches. + * + * A payload that decrypts here is NOT delivered: it belongs to a branch + * that is not canonical, and handing it to the application would render a + * message the canonical state contradicts. What it can do is witness for + * that branch — but only if it passes the SAME payload checks a delivered + * one does. Decryption alone is not a witness; without the author check a + * single member could forge many distinct sender identities and buy a + * branch the witness quorum outright. + */ + private suspend fun processCandidateBranchMessage( + groupId: HexKey, + mlsBytes: ByteArray, + ): GroupEventResult { + val candidate = + convergence.tryCandidateDecrypt(groupId, mlsBytes) + ?: return GroupEventResult.Error( + groupId, + "Application message decrypts on no canonical epoch or retained candidate branch", + ) + + val innerEvent = Event.fromJsonOrNull(candidate.content.decodeToString()) + val sender = candidate.senderAccount + val valid = innerEvent != null && sender != null && innerEvent.pubKey == sender + if (valid && sender != null) { + convergence.recordWitness(groupId, candidate.stateId, sender) + } + return GroupEventResult.AppMessageOnCandidateBranch( + groupId = groupId, + branchStateId = candidate.stateId, + epoch = candidate.epoch, + countedAsWitness = valid, + ) + } + /** * Apply an inbound commit, letting convergence decide anything ambiguous. * @@ -762,7 +829,7 @@ class MarmotInboundProcessor( * should treat null as an expected "nothing to do here" outcome and log * at DEBUG, not as an error. */ - private fun tryDecryptOuterLayer( + private suspend fun tryDecryptOuterLayer( groupId: HexKey, encryptedContent: String, ): ByteArray? { @@ -784,6 +851,19 @@ class MarmotInboundProcessor( } } + // Finally the branches convergence retains. An event published on a + // fork is keyed by that branch's epoch exporter, which appears in + // neither the canonical nor the retained-canonical set — so without + // this a payload on a candidate branch could never even be peeled, and + // the branch could never accumulate witnesses. + for (candidateKey in convergence.candidateExporterSecrets(groupId)) { + try { + return GroupEventEncryption.decrypt(encryptedContent, candidateKey) + } catch (_: Exception) { + // Not this branch — try the next. + } + } + return null } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt index 0307150f2b..17d6dfa8f7 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt @@ -20,6 +20,8 @@ */ package com.vitorpamplona.quartz.marmot.protocolCore +import com.vitorpamplona.quartz.marmot.mls.framing.ContentType +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroup import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupState import com.vitorpamplona.quartz.nip01Core.core.HexKey @@ -41,6 +43,26 @@ enum class ConvergenceAdmission { DUPLICATE, } +/** + * An MLS application message that decrypted against a RETAINED CANDIDATE state + * rather than against canonical state. + * + * Per `protocol-core/inbound-processing.md` this is not a delivery: a payload + * that decrypts only on a losing branch is invalidated, not handed to the + * application. It is still protocol input — it can be an app-payload witness + * for the branch it decrypted on, which is how a branch members actually used + * outweighs an equally long one nobody did. + */ +class CandidateAppMessage( + /** The candidate state it decrypted against. */ + val stateId: String, + val epoch: Long, + val senderLeafIndex: Int, + /** Account identity from the MLS leaf credential, hex. Never a transport key. */ + val senderAccount: HexKey?, + val content: ByteArray, +) + /** The outcome of resolving one frozen pass. */ class ConvergenceResolution( val groupId: HexKey, @@ -108,6 +130,16 @@ class MarmotConvergenceEngine( /** stateId -> the accounts that sent a validated payload decrypting there. */ val witnesses = mutableMapOf>() + /** + * States reachable only from divergent commits, by id. + * + * Kept so an app message that decrypts on no canonical epoch can still + * be tried against the branches under evaluation. Without them a + * losing branch could never accumulate witnesses and the witness steps + * of the comparison would be dead code. + */ + val candidateStates = LinkedHashMap() + var pass: ConvergencePass? = null var lifecycle: GroupLifecycleState = GroupLifecycleState.STABLE } @@ -119,6 +151,14 @@ class MarmotConvergenceEngine( * extend a window. */ private val ORIGIN = TimeSource.Monotonic.markNow() + + /** + * How many concurrent branches' worth of states to hold for trial + * decryption. A bound, not a protocol constant: a real group forks in + * two, and anything that produces more than a handful of live branches + * is an attack, not usage. + */ + private const val MAX_CANDIDATE_BRANCHES = 4 } /** @@ -215,6 +255,18 @@ class MarmotConvergenceEngine( if (!hasParent) return@withLock ConvergenceAdmission.NOT_A_CANDIDATE ctx.divergent[candidate.id] = candidate + // Replay it now, not only at resolution. The resulting state is + // what an app message on this branch decrypts against, and + // witnesses have to accumulate DURING the pass to influence the + // selection that pass makes. + for (parent in ctx.retained) { + if (!stateEngine.authenticatesAgainst(parent, commitBytes)) continue + if (!stateEngine.isAuthorized(parent, commitBytes)) continue + val child = stateEngine.replay(parent, commitBytes) ?: continue + if (!stateEngine.resultingStateIsValid(child)) continue + ctx.candidateStates[stateEngine.stateId(child)] = child + trimCandidates(ctx) + } val pass = ctx.pass ?: openPass(groupId, ctx) // A new divergent commit can add an eligible edge, so it restarts // quiescence. Its admission may be refused if the pass already @@ -248,6 +300,92 @@ class MarmotConvergenceEngine( Unit } + /** + * Outer transport keys derived from retained CANDIDATE states. + * + * The Marmot outer layer is keyed by a per-epoch exporter secret, so an + * event published on a fork is not merely undecryptable at the MLS layer — + * it does not even peel. `protocol-core/inbound-processing.md` calls a + * transport object we cannot peel `transport_deferred` and requires a retry + * "whenever the transport decryption context changes", and retaining a + * candidate state IS such a change. Deriving from the retained state rather + * than storing another secret keeps the release condition in one place: + * when the state goes, the key goes with it. + */ + suspend fun candidateExporterSecrets(groupId: HexKey): List = + mutex.withLock { + contexts[groupId]?.candidateStates?.values?.mapNotNull { state -> + try { + MlsGroup.restore(state).exporterSecret("marmot", "group-event".encodeToByteArray(), 32) + } catch (_: Exception) { + null + } + } ?: emptyList() + } + + /** + * Try to decrypt an MLS application message against retained CANDIDATE + * states, after canonical and retained-epoch decryption have both failed. + * + * This is the bounded trial set `protocol-core/retained-history.md` + * describes: canonical epochs inside the app-payload window (which the + * group manager's own retained-epoch fallback covers), plus the candidate + * parents convergence is holding. It is deliberately not "try every key we + * have ever seen" — the set is bounded by the rollback horizon, so a + * flood of undecryptable ciphertext costs a bounded number of attempts. + */ + suspend fun tryCandidateDecrypt( + groupId: HexKey, + mlsBytes: ByteArray, + ): CandidateAppMessage? = + mutex.withLock { + val ctx = contexts[groupId] ?: return@withLock null + for ((stateId, state) in ctx.candidateStates) { + val decrypted = + try { + // A clone per attempt: decrypting advances the secret + // tree, and a candidate state gets tried by every + // message that failed canonically. + MlsGroup.restore(state).decrypt(mlsBytes) + } catch (_: Exception) { + continue + } + if (decrypted.contentType != ContentType.APPLICATION) continue + return@withLock CandidateAppMessage( + stateId = stateId, + epoch = decrypted.epoch, + senderLeafIndex = decrypted.senderLeafIndex, + senderAccount = MlsGroup.restore(state).memberIdentityHex(decrypted.senderLeafIndex), + content = decrypted.content, + ) + } + null + } + + /** + * Record a witness for an app payload that decrypted on CANONICAL state at + * [epoch]. + * + * The incumbent is rebuilt as a candidate branch at resolution time and + * scored by the same rule as its challengers, so it needs its witnesses + * counted too. Counting only divergent branches would make every fork win + * on witness score by default. + */ + suspend fun recordCanonicalWitness( + groupId: HexKey, + epoch: Long, + senderAccount: HexKey, + ) = mutex.withLock { + val ctx = contexts[groupId] ?: return@withLock + val state = ctx.retained.lastOrNull { stateEngine.epoch(it) == epoch } ?: return@withLock + val added = ctx.witnesses.getOrPut(stateEngine.stateId(state)) { mutableSetOf() }.add(senderAccount) + ctx.pass?.admit( + WitnessObservation(stateEngine.stateId(state), senderAccount), + if (added) InputRelevance.SELECTION_RELEVANT else InputRelevance.ORDINARY, + ) + Unit + } + /** Resolve [groupId]'s pass if its cutoff has passed. Null when nothing is due. */ suspend fun settleIfDue(groupId: HexKey): ConvergenceResolution? { val due = @@ -301,6 +439,23 @@ class MarmotConvergenceEngine( if (rewound && selectedTipId != null) { adoptBranch(ctx, graph, selectedTipId, inputs.baseId) } + // Keep the states of branches that LOST but stay eligible: losing + // one pass is not permanent ineligibility, and a payload that + // arrives afterwards still needs somewhere to decrypt. Everything + // now on the canonical path is dropped from the candidate set — it + // is reachable as retained state. + val canonical = ctx.retained.map { stateEngine.stateId(it) }.toSet() + ctx.candidateStates.keys.retainAll { it !in canonical } + graph.branches + .mapNotNull { graph.branchTips[it.tipDigestHex] } + .forEach { tipId -> + var cursor: String? = tipId + while (cursor != null && cursor !in canonical) { + graph.statesById[cursor]?.let { ctx.candidateStates[cursor!!] = it } + cursor = graph.parentOf[cursor] + } + } + trimCandidates(ctx) ctx.divergent.clear() ctx.pass = null val epoch = groupManager.getGroup(groupId)?.epoch ?: inputs.tipEpoch @@ -438,6 +593,21 @@ class MarmotConvergenceEngine( return pass } + /** + * Bound the candidate set the same way the retained window is bounded. + * + * A branch outside the rollback horizon can never be selected, so holding + * its states would only widen the trial-decryption cost for input that can + * no longer matter. + */ + private fun trimCandidates(ctx: GroupContext) { + val max = windowSize * MAX_CANDIDATE_BRANCHES + while (ctx.candidateStates.size > max) { + val oldest = ctx.candidateStates.keys.first() + ctx.candidateStates.remove(oldest) + } + } + /** * Keep the window bounded, holding the invariant the base search relies on: * `canonicalCommits[i]` is the commit that turned `retained[i]` into diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt index 3d740ad01a..f0116434c4 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt @@ -56,9 +56,24 @@ class MarmotConvergenceWiringTest { val observerStateBytes: ByteArray, val commitA: GroupEvent, val commitB: GroupEvent, + /** An app payload Bob sent on HIS branch, authored honestly. */ + val bobPayload: GroupEvent, + /** The same, but claiming an author Bob's MLS leaf does not authenticate. */ + val bobForgedPayload: GroupEvent, val forkEpoch: Long, ) + /** + * A minimal inner Nostr event. + * + * Only the `pubkey` field matters here: the receiver check compares it to + * the account the MLS sender leaf authenticates, and that comparison is + * what separates a witness from a forgery. + */ + private fun innerEventJson(authorHex: String) = + """{"id":"${"0".repeat(64)}","pubkey":"$authorHex","created_at":1,"kind":9,""" + + """"tags":[],"content":"hi","sig":"${"0".repeat(128)}"}""" + private fun account(seed: Byte) = ByteArray(32) { seed } private fun groupData(vararg admins: String) = MarmotGroupData(nostrGroupId = groupId, adminPubkeys = admins.toList()).toExtension() @@ -121,10 +136,27 @@ class MarmotConvergenceWiringTest { val eventB = outbound.buildCommitEvent(groupId, bobCommit.framedCommitBytes, bobCommit.preCommitExporterSecret) + // Bob speaks on his own branch. His epoch exporter is on neither the + // canonical nor the retained-canonical key list, so these only peel at + // all once the observer retains Bob's candidate state. + val bobOutbound = MarmotOutboundProcessor(bobMgr) + val honest = + bobOutbound.buildGroupEventFromBytes( + groupId, + innerEventJson(account(0x0b).toHexKey()).encodeToByteArray(), + ) + val forged = + bobOutbound.buildGroupEventFromBytes( + groupId, + innerEventJson(account(0x0a).toHexKey()).encodeToByteArray(), + ) + return Fork( observerStateBytes = carolMgr.snapshot(groupId)!!.encodeTls(), commitA = eventA.signedEvent, commitB = eventB.signedEvent, + bobPayload = honest.signedEvent, + bobForgedPayload = forged.signedEvent, forkEpoch = forkEpoch, ) } @@ -308,6 +340,79 @@ class MarmotConvergenceWiringTest { ) } + /** + * A payload sent on a branch that is not ours decrypts on no canonical + * epoch, so it must not be delivered — but it must not vanish either. It + * is reported as living on a candidate branch, and (because it passes the + * payload checks) counted as an app-payload witness for that branch. + */ + @Test + fun aPayloadOnTheLosingBranchWitnessesInsteadOfBeingDelivered() = + runBlocking { + val fork = buildFork() + val obs = observer(fork.observerStateBytes) + + // Our observer follows Alice's branch; Bob's is the candidate. + assertIs(obs.inbound.processGroupEvent(fork.commitA)) + assertIs(obs.inbound.processGroupEvent(fork.commitB)) + + val onBob = fork.bobPayload + val result = obs.inbound.processGroupEvent(onBob) + val branchMsg = assertIs(result) + assertTrue(branchMsg.countedAsWitness, "a payload passing the author check is a witness") + assertEquals(fork.forkEpoch + 1, branchMsg.epoch) + } + + /** + * Decryption alone is not a witness. A payload whose inner author does not + * match the MLS-authenticated sender is reported on its branch but MUST NOT + * be counted — otherwise one member could mint many sender identities and + * buy the witness quorum outright. + */ + @Test + fun aPayloadFailingTheAuthorCheckIsNotCountedAsAWitness() = + runBlocking { + val fork = buildFork() + val obs = observer(fork.observerStateBytes) + + obs.inbound.processGroupEvent(fork.commitA) + obs.inbound.processGroupEvent(fork.commitB) + + val result = obs.inbound.processGroupEvent(fork.bobForgedPayload) + val branchMsg = assertIs(result) + assertFalse(branchMsg.countedAsWitness, "a mismatched author must not witness") + } + + /** + * A payload for a branch we do not hold is `transport_deferred`, not a + * terminal failure. + * + * The trial set really is bounded — canonical epochs plus retained + * candidates, nothing else — but "I could not peel this" is a statement + * about the keys we hold right now. Bob's commit may still arrive, and + * `protocol-core/inbound-processing.md` requires a retry whenever the + * transport decryption context changes. Reporting it terminal would strand + * the payload permanently on a race the group is about to resolve. + */ + @Test + fun aPayloadForNoRetainedBranchIsDeferredNotRejected() = + runBlocking { + val fork = buildFork() + val obs = observer(fork.observerStateBytes) + obs.inbound.processGroupEvent(fork.commitA) + + // Bob's branch was never offered, so nothing retains its state and + // no key we hold derives his epoch exporter. + val before = obs.inbound.processGroupEvent(fork.bobPayload) + assertIs(before) + + // Retaining Bob's branch IS a change of transport decryption + // context, and the retry now succeeds. + obs.inbound.processGroupEvent(fork.commitB) + val after = obs.inbound.processGroupEvent(fork.bobPayload) + assertIs(after) + } + /** The Marmot message id of a commit event, as the engine computes it. */ private suspend fun sha256Hex( event: GroupEvent, From 63c852c2f9cd195ad3094a971188813681ba1ee7 Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 20:06:25 +0000 Subject: [PATCH 13/79] feat(marmot): enforce publish-before-apply and the outbound gates MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A locally generated group-state change was becoming canonical the moment it was prepared, before anything had been published. The spec forbids that, and the reason is not bookkeeping: if the publish then fails, this client holds an epoch no peer has, and every message it sends next is undecryptable to the group. Apply-then-undo would not have fixed it. Between the apply and the undo there is a window in which we are already forked, and a crash inside that window makes the fork permanent. So a local commit is now prepared on a CLONE restored from the current state: the live group does not move, keeps its pending proposals (which is exactly the "proposal stays available for retry" rule on failure), and the pending state becomes canonical only via installState once publication is acknowledged. Acknowledged means what the spec says it means — at least one endpoint in the recipient scope returning an accept, which over Nostr is OK true from a relay. `MarmotPublisher` makes that explicit and the manager owns the publish, because a caller handed bytes may or may not report back. Its default refuses everything: a client that never configures a publisher can read a group but never advance it, which is the safe direction to fail. The recipient scope comes from the group's own relay list, so the accept has to come from an endpoint the GROUP names. The obligation record is durable before the publish, not after. The other order leaves a crash window in which peers have accepted a commit this client has no memory of preparing — and on restart it would generate a replacement, forking itself at its own epoch. Group creation keeps its exception: a one-member epoch-0 group has no peer that failure to publish could fork, so its obligation is empty and immediately satisfied. Departure keeps its own shape too — a SelfRemove is a proposal, not a local commit, so it has no pending state, but it raises the LEAVING outbound gate, and a gated group refuses new commits rather than preparing epochs it has no standing to publish. Also carries a quiet fork to its cutoff. Inbound traffic ticks convergence opportunistically, but a group where the fork was the last thing to arrive had nothing to settle it; the settler runs only while a pass is open, so a quiet client still does no periodic work. Two test premises of mine were wrong and the code was right: a sole admin cannot SelfRemove without demoting first, and a payload for an unretained branch is transport-deferred rather than rejected. Both tests now assert the actual rule. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../vitorpamplona/amethyst/model/Account.kt | 19 +- .../amethyst/model/AccountMarmotActions.kt | 26 +- .../com/vitorpamplona/amethyst/cli/Context.kt | 15 +- .../amethyst/commons/marmot/MarmotManager.kt | 298 ++++++++++++---- .../commons/marmot/MarmotPublisher.kt | 41 +++ .../marmot/MarmotManagerLeaveRejoinTest.kt | 6 +- .../marmot/MarmotPublishBeforeApplyTest.kt | 313 +++++++++++++++++ .../marmot/mls/group/MlsGroupManager.kt | 74 ++++ .../marmot/protocolCore/MarmotPublishGate.kt | 329 ++++++++++++++++++ .../marmot/MarmotConvergenceWiringTest.kt | 26 ++ 10 files changed, 1064 insertions(+), 83 deletions(-) create mode 100644 commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublisher.kt create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt index 760c580255..09d44fd9bf 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt @@ -32,6 +32,7 @@ import com.vitorpamplona.amethyst.commons.connectedApps.signers.NostrSignerPermi import com.vitorpamplona.amethyst.commons.connectedApps.signers.NostrSignerPermissionStore import com.vitorpamplona.amethyst.commons.defaults.Constants import com.vitorpamplona.amethyst.commons.marmot.MarmotManager +import com.vitorpamplona.amethyst.commons.marmot.MarmotPublisher import com.vitorpamplona.amethyst.commons.model.AddressableNote import com.vitorpamplona.amethyst.commons.model.IAccount import com.vitorpamplona.amethyst.commons.model.Note @@ -212,6 +213,7 @@ import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair import com.vitorpamplona.quartz.nip01Core.hints.EventHintBundle import com.vitorpamplona.quartz.nip01Core.relay.client.INostrClient import com.vitorpamplona.quartz.nip01Core.relay.client.accessories.fetchFirst +import com.vitorpamplona.quartz.nip01Core.relay.client.accessories.publishAndConfirm import com.vitorpamplona.quartz.nip01Core.relay.client.paging.RelayLoadingCursors import com.vitorpamplona.quartz.nip01Core.relay.filters.Filter import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl @@ -920,7 +922,22 @@ class Account( val otsState = OtsState(signer, cache, otsResolverBuilder, scope, settings) - val marmotManager: MarmotManager? = mlsGroupStateStore?.let { MarmotManager(signer, it, marmotMessageStore, marmotKeyPackageStore) } + val marmotManager: MarmotManager? = + mlsGroupStateStore?.let { + MarmotManager( + signer, + it, + marmotMessageStore, + marmotKeyPackageStore, + // Publish-before-apply: a group-state change becomes canonical + // only once a relay in the group's own scope returns OK true. + // `publishAndConfirm` is exactly that "at least one + // acknowledged accept" rule; a plain `publish` would report + // success for bytes nobody took. + MarmotPublisher { event, relays -> client.publishAndConfirm(event, relays) }, + scope = scope, + ) + } val paymentTargetsState = NipA3PaymentTargetsState(signer, cache, scope, settings) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt index 001e538f3b..f374d93f82 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt @@ -222,11 +222,12 @@ class AccountMarmotActions( "welcomeDelivery=${if (welcomeDelivery != null) "present(giftWrapId=${welcomeDelivery.giftWrapEvent.id.take(8)}…)" else "null"}" } - // Publish commit first (critical ordering) + // The commit was published by the manager, which only advances the + // group once a relay acknowledged it (publish-before-apply). Publishing + // it again here would just duplicate the event. Log.d("MarmotDbg") { - "addMarmotGroupMember: publishing commit kind:${commitEvent.signedEvent.kind} to ${groupRelays.size} relay(s): ${groupRelays.map { it.url }}" + "addMarmotGroupMember: commit kind:${commitEvent.signedEvent.kind} published to ${groupRelays.size} relay(s)" } - account.client.publish(commitEvent.signedEvent, groupRelays.toSet()) // Then send the Welcome gift wrap to the new member. // @@ -431,8 +432,7 @@ class AccountMarmotActions( } if (remaining.isNotEmpty()) { val demoted = metadata.copy(adminPubkeys = remaining) - val demoteCommit = manager.updateGroupMetadata(nostrGroupId, demoted) - account.client.publish(demoteCommit.signedEvent, groupRelays) + manager.updateGroupMetadata(nostrGroupId, demoted, groupRelays.toList()) } } @@ -492,17 +492,16 @@ class AccountMarmotActions( return } - val outbound = manager.removeMember(nostrGroupId, targetLeafIndex) + val outbound = manager.removeMember(nostrGroupId, targetLeafIndex, groupRelays.toList()) Log.d("MarmotDbg") { "removeMarmotGroupMember: built commit kind=${outbound.signedEvent.kind} id=${outbound.signedEvent.id.take(8)}…" } val chatroom = account.marmotGroupList.getOrCreateGroup(nostrGroupId) manager.syncMetadataTo(nostrGroupId, chatroom) Log.d("MarmotDbg") { - "removeMarmotGroupMember: publishing commit id=${outbound.signedEvent.id.take(8)}… " + - "to ${groupRelays.size} relay(s): ${groupRelays.map { it.url }}" + "removeMarmotGroupMember: commit id=${outbound.signedEvent.id.take(8)}… " + + "published to ${groupRelays.size} relay(s): ${groupRelays.map { it.url }}" } - account.client.publish(outbound.signedEvent, groupRelays) } /** @@ -517,13 +516,12 @@ class AccountMarmotActions( val manager = account.marmotManager ?: return if (!account.isWriteable()) return - val outbound = manager.updateGroupMetadata(nostrGroupId, metadata) - // The MLS commit has already been applied locally — surface the new - // metadata in the chatroom now so the UI reflects it without waiting - // for the relay round-trip. + manager.updateGroupMetadata(nostrGroupId, metadata, groupRelays.toList()) + // The commit was published and acknowledged before it became canonical, + // so the local state is already the one peers will see — surface it now + // rather than waiting for our own event to loop back. val chatroom = account.marmotGroupList.getOrCreateGroup(nostrGroupId) manager.syncMetadataTo(nostrGroupId, chatroom) - account.client.publish(outbound.signedEvent, groupRelays) } /** diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt index 8b5621fb8f..d330568c1e 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt @@ -30,6 +30,7 @@ import com.vitorpamplona.amethyst.commons.cashu.ops.RestoreOutcome import com.vitorpamplona.amethyst.commons.defaults.DefaultDMRelayList import com.vitorpamplona.amethyst.commons.defaults.DefaultNIP65RelaySet import com.vitorpamplona.amethyst.commons.marmot.MarmotManager +import com.vitorpamplona.amethyst.commons.marmot.MarmotPublisher import com.vitorpamplona.amethyst.commons.marmot.MarmotSyncPolicy import com.vitorpamplona.quartz.marmot.RecipientRelayFetcher import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageRelayListEvent @@ -43,6 +44,7 @@ import com.vitorpamplona.quartz.nip01Core.relay.client.accessories.PublishResult import com.vitorpamplona.quartz.nip01Core.relay.client.accessories.fetchAllPagesFromPoolWithHooks import com.vitorpamplona.quartz.nip01Core.relay.client.accessories.fetchAllWithHooks import com.vitorpamplona.quartz.nip01Core.relay.client.accessories.publishAndCollectResults +import com.vitorpamplona.quartz.nip01Core.relay.client.accessories.publishAndConfirm import com.vitorpamplona.quartz.nip01Core.relay.client.auth.RelayAuthenticator import com.vitorpamplona.quartz.nip01Core.relay.client.reqs.SubscriptionListener import com.vitorpamplona.quartz.nip01Core.relay.client.single.newSubId @@ -344,7 +346,18 @@ class Context( } /** Fully-wired manager. Call [prepare] once before use to load persisted state. */ - val marmot: MarmotManager by lazy { MarmotManager(signer, mlsStore, messageStore, keyPackageStore) } + val marmot: MarmotManager by lazy { + MarmotManager( + signer, + mlsStore, + messageStore, + keyPackageStore, + // Publish-before-apply: a group-state change becomes canonical only + // once a relay in the group's own scope returns OK true. Anything + // weaker (queued, sent, no error yet) is explicitly not success. + MarmotPublisher { event, relays -> client.publishAndConfirm(event, relays) }, + ) + } // ------------------------------------------------------------------ // Cashu (NIP-60 / NIP-61) — shared wallet code from commons diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 071eb00dc7..b5f3defe17 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -39,15 +39,20 @@ import com.vitorpamplona.quartz.marmot.mip02Welcome.WelcomeEvent import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEvent import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager -import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupState import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore import com.vitorpamplona.quartz.marmot.mls.messages.CommitResult import com.vitorpamplona.quartz.marmot.mls.tree.Credential +import com.vitorpamplona.quartz.marmot.protocolCore.GroupLifecycleState +import com.vitorpamplona.quartz.marmot.protocolCore.LocalOutboundGate +import com.vitorpamplona.quartz.marmot.protocolCore.MarmotPublishGate +import com.vitorpamplona.quartz.marmot.protocolCore.MarmotPublishObligationStore +import com.vitorpamplona.quartz.marmot.protocolCore.PublishOutcome import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl +import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner import com.vitorpamplona.quartz.nip01Core.tags.people.PTag import com.vitorpamplona.quartz.nip01Core.tags.people.pTags @@ -55,6 +60,10 @@ import com.vitorpamplona.quartz.nip18Reposts.quotes.QEventTag import com.vitorpamplona.quartz.nip18Reposts.quotes.quote import com.vitorpamplona.quartz.utils.Log import com.vitorpamplona.quartz.utils.TimeUtils +import kotlinx.coroutines.CoroutineScope +import kotlinx.coroutines.delay +import kotlinx.coroutines.flow.MutableStateFlow +import kotlinx.coroutines.launch import kotlin.io.encoding.Base64 import kotlin.io.encoding.ExperimentalEncodingApi @@ -75,6 +84,27 @@ class MarmotManager( store: MlsGroupStateStore, val messageStore: MarmotMessageStore? = null, val keyPackageStore: KeyPackageBundleStore? = null, + /** + * How this client publishes group-state changes and learns whether they + * were accepted. + * + * Publish-before-apply (`protocol-core/publish-lifecycle.md`) needs an + * acknowledgement, so the manager owns the publish rather than handing + * bytes to a caller that may or may not report back. The default refuses + * every obligation: a client that never configures one can read a group + * but can never advance its state, which is the safe direction to fail. + */ + val publisher: MarmotPublisher = MarmotPublisher { _, _ -> false }, + publishObligationStore: MarmotPublishObligationStore? = null, + /** + * Scope used to carry an open convergence pass to its cutoff. + * + * A group that goes quiet mid-pass has no inbound traffic to tick it, so + * something has to. When null the client MUST drive + * [driveConvergenceToSettlement] itself, or a fork will sit unresolved + * until the next message happens to arrive. + */ + private val scope: CoroutineScope? = null, ) { val groupManager = MlsGroupManager(store) val keyPackageRotationManager = KeyPackageRotationManager(keyPackageStore) @@ -82,6 +112,9 @@ class MarmotManager( val inboundProcessor = MarmotInboundProcessor(groupManager, keyPackageRotationManager) val outboundProcessor = MarmotOutboundProcessor(groupManager) val welcomeSender = MarmotWelcomeSender(signer) + val publishGate = + publishObligationStore?.let { MarmotPublishGate(groupManager, it) } + ?: MarmotPublishGate(groupManager) /** * Restore all Marmot state from persistent storage. @@ -104,6 +137,11 @@ class MarmotManager( // before this has no retained parent, so a fork right after a // restart would be invisible. activeIds.forEach { inboundProcessor.trackGroup(it) } + // An interruption does not resolve a publish obligation. Anything + // still unresolved keeps its group in PendingPublish until it is + // retried byte-identically and acknowledged — generating a + // replacement commit instead would fork us at our own epoch. + publishGate.restore() // Also restore previously-published KeyPackage bundles so that // Welcomes referencing them remain processable across restarts. keyPackageRotationManager.restoreFromStore() @@ -162,6 +200,13 @@ class MarmotManager( suspend fun processGroupEvent(groupEvent: GroupEvent): GroupEventResult { val result = inboundProcessor.processGroupEvent(groupEvent) + // A fork just opened a bounded pass. Inbound traffic settles it + // opportunistically, but the group may fall silent before its cutoff — + // so start the carrier now, while we know a pass exists. + if (result is GroupEventResult.CommitPending && result.forkDetected) { + startConvergenceSettler() + } + // Update subscription timestamp when (result) { is GroupEventResult.ApplicationMessage -> { @@ -388,33 +433,30 @@ class MarmotManager( // outer-encrypted with the pre-commit (epoch-N) exporter secret so // that other existing members still at epoch N can decrypt and // process the commit. CommitResult.preCommitExporterSecret carries - // that key; the local group state has already advanced to N+1 by - // the time addMember returns, so we can't read it from the group - // any more. - val (preState, preEpoch) = preCommit(nostrGroupId) - val commitResult = groupManager.addMember(nostrGroupId, keyPackageBytes) - val commitEvent = - outboundProcessor.buildCommitEvent( - nostrGroupId = nostrGroupId, - commitBytes = commitResult.framedCommitBytes, - exporterKey = commitResult.preCommitExporterSecret, - ) - // The published kind:445 will echo back from the relay — without this - // dedup our own inbound pipeline would try to re-apply a commit whose - // epoch we've already merged. - inboundProcessor.markMessageProcessed(commitEvent.marmotMessageId) - recordLocalCommit(nostrGroupId, commitResult, preState, preEpoch) + // that key. + val publication = + commitAndPublish(nostrGroupId, relays) { + groupManager.stageAddMember(nostrGroupId, keyPackageBytes) + } + // The Welcome is a SEPARATE, retryable per-invitee delivery obligation + // that only exists once the Add is canonical. A Welcome for an epoch + // no relay accepted would invite someone into a group that does not + // exist anywhere else. val welcomeDelivery = - welcomeSender.wrapWelcome( - commitResult = commitResult, - recipientPubKey = memberPubKey, - keyPackageEventId = keyPackageEventId, - relays = relays, - nostrGroupId = nostrGroupId, - ) + if (publication.confirmed) { + welcomeSender.wrapWelcome( + commitResult = publication.commitResult, + recipientPubKey = memberPubKey, + keyPackageEventId = keyPackageEventId, + relays = relays, + nostrGroupId = nostrGroupId, + ) + } else { + null + } - return Pair(commitEvent, welcomeDelivery) + return Pair(publication.event, welcomeDelivery) } /** @@ -437,36 +479,158 @@ class MarmotManager( val identity = signer.pubKey.hexToByteArray() val extras = initialMetadata?.let { listOf(it.toExtension()) } ?: emptyList() groupManager.createGroup(nostrGroupId, identity, initialExtensions = extras) + // The group-creation exception: a one-member epoch-0 group has no peer + // that failure to publish could fork, so its obligation is empty and + // immediately satisfied. Every LATER commit takes the normal + // publish-before-apply path. + publishGate.satisfyEmptyObligation(nostrGroupId) inboundProcessor.trackGroup(nostrGroupId) subscriptionManager.subscribeGroup(nostrGroupId) Log.d("MarmotManager") { "createGroup($nostrGroupId): persisted and subscribed" } return nostrGroupId } + /** A locally prepared commit, published and resolved. */ + class CommitPublication( + val event: OutboundGroupEvent, + val commitResult: CommitResult, + /** Stable id of the publish obligation; a safe retry republishes its bytes. */ + val obligationId: HexKey, + /** True when at least one relay in scope acknowledged an accept. */ + val confirmed: Boolean, + ) + /** - * Tell convergence about a commit we just authored and applied locally. + * Prepare a local commit, publish it, and apply it only if publication was + * acknowledged (`protocol-core/publish-lifecycle.md`). * - * Our own commits are half of any fork we are party to. Without them in the - * retained window a peer's competing commit has no parent to replay - * against, so it would be deferred as an orphan rather than compared — - * and the group would quietly stay split. + * The commit is staged on a clone, so until an acknowledgement arrives the + * live group has not moved. Apply-then-undo would look equivalent and is + * not: between the two there is a window in which this client's canonical + * state is an epoch no peer has, and a crash inside it makes the fork + * permanent. */ - private suspend fun recordLocalCommit( + private suspend fun commitAndPublish( nostrGroupId: HexKey, - commitResult: CommitResult, - preState: MlsGroupState?, - preEpoch: Long, - ) { - inboundProcessor.recordLocalCommit( - groupId = nostrGroupId, - framedCommitBytes = commitResult.framedCommitBytes, - sourceEpoch = preEpoch, - preState = preState, + relays: List, + stage: suspend () -> MlsGroupManager.StagedCommit, + ): CommitPublication { + check(publishGate.canPrepareLocalCommit(nostrGroupId)) { + "Group $nostrGroupId cannot prepare a local commit " + + "(lifecycle=${publishGate.lifecycle(nostrGroupId)}, gate=${publishGate.outboundGate(nostrGroupId)})" + } + + val staged = stage() + val event = + outboundProcessor.buildCommitEvent( + nostrGroupId = nostrGroupId, + commitBytes = staged.result.framedCommitBytes, + exporterKey = staged.result.preCommitExporterSecret, + ) + + // Durable BEFORE the publish. Publishing first would leave a crash + // window in which peers have accepted a commit this client has no + // memory of preparing — and on restart it would generate a + // replacement, forking itself at the same epoch. + val obligation = + publishGate.prepare( + groupId = nostrGroupId, + staged = staged, + outboundBytes = event.signedEvent.toJson().encodeToByteArray(), + recipientScope = relays.map { it.url }, + ) + + val confirmed = + try { + publisher.publish(event.signedEvent, relays.toSet()) + } catch (e: Exception) { + Log.w("MarmotManager", "publish failed for $nostrGroupId: ${e.message}", e) + false + } + + publishGate.resolve( + obligation.obligationId, + if (confirmed) PublishOutcome.CONFIRMED else PublishOutcome.FAILED, ) + + if (confirmed) { + // The published kind:445 echoes back from the relay — without this + // dedup our own inbound pipeline would try to re-apply a commit + // whose epoch we have already merged. + inboundProcessor.markMessageProcessed(event.marmotMessageId) + // Our own commit is half of any fork we are party to. Without it in + // the retained window a peer's competing commit has no parent to + // replay against, so it would be deferred as an orphan rather than + // compared — and the group would quietly stay split. + inboundProcessor.recordLocalCommit( + groupId = nostrGroupId, + framedCommitBytes = staged.result.framedCommitBytes, + sourceEpoch = staged.priorState.groupContext.epoch, + preState = staged.priorState, + ) + } else { + Log.w("MarmotManager") { + "commitAndPublish($nostrGroupId): no relay acknowledged the commit — pending state " + + "discarded, group stays at epoch ${staged.priorState.groupContext.epoch}" + } + } + + return CommitPublication(event, staged.result, obligation.obligationId, confirmed) } - /** The state and epoch a local commit is about to be applied to. */ - private fun preCommit(nostrGroupId: HexKey): Pair = groupManager.snapshot(nostrGroupId) to (groupManager.getGroup(nostrGroupId)?.epoch ?: 0L) + /** + * Carry open convergence passes to their cutoff and resolve them. + * + * Runs only while some pass is open and returns as soon as none is, so a + * quiet client does no periodic work at all — this is a carrier for work + * already in flight, not a heartbeat. + */ + suspend fun driveConvergenceToSettlement(pollMs: Long = CONVERGENCE_POLL_MS) { + while (inboundProcessor.openConvergencePasses().isNotEmpty()) { + delay(pollMs) + inboundProcessor.settleDueConvergence().forEach { resolution -> + Log.d("MarmotManager") { + "convergence settled group=${resolution.groupId.take(8)}… " + + "epoch=${resolution.canonicalEpoch} rewound=${resolution.rewound}" + } + } + } + } + + private fun startConvergenceSettler() { + val runner = scope ?: return + // One carrier at a time: every fork in a busy group would otherwise + // start another, and they would all poll the same passes. + if (!settlerRunning.compareAndSet(expect = false, update = true)) return + runner.launch { + try { + driveConvergenceToSettlement() + } finally { + settlerRunning.value = false + } + } + } + + private val settlerRunning = MutableStateFlow(false) + + /** Lifecycle state for a group, including any unresolved publish obligation. */ + suspend fun lifecycle(nostrGroupId: HexKey): GroupLifecycleState = publishGate.lifecycle(nostrGroupId) + + /** + * The group's own relay list, as the recipient scope for a publish + * obligation. + * + * Read from the group's canonical state rather than from a caller-supplied + * list, so a commit's acknowledgement has to come from an endpoint the + * GROUP names — the same set every other member is listening on. + */ + fun groupRelays(nostrGroupId: HexKey): List = + groupManager + .getGroup(nostrGroupId) + ?.currentMarmotData() + ?.relays + .orEmpty() + .mapNotNull { RelayUrlNormalizer.normalizeOrNull(it) } /** * Nuke all local Marmot state — every MLS group, every retained epoch @@ -515,6 +679,13 @@ class MarmotManager( exporterKey = exporterKey, ) + // A departure is a SelfRemove PROPOSAL, not a local commit: another + // authorized member commits it, so the leaver has no pending state and + // publish-before-apply does not bind here. What does bind is the + // outbound gate — until the removal is realized, this client must not + // start new group-state work it would have no standing to publish. + publishGate.raiseGate(nostrGroupId, LocalOutboundGate.LEAVING) + subscriptionManager.unsubscribeGroup(nostrGroupId) try { messageStore?.delete(nostrGroupId) @@ -560,19 +731,11 @@ class MarmotManager( suspend fun removeMember( nostrGroupId: HexKey, targetLeafIndex: Int, - ): OutboundGroupEvent { - val (preState, preEpoch) = preCommit(nostrGroupId) - val commitResult = groupManager.removeMember(nostrGroupId, targetLeafIndex) - val commitEvent = - outboundProcessor.buildCommitEvent( - nostrGroupId = nostrGroupId, - commitBytes = commitResult.framedCommitBytes, - exporterKey = commitResult.preCommitExporterSecret, - ) - inboundProcessor.markMessageProcessed(commitEvent.marmotMessageId) - recordLocalCommit(nostrGroupId, commitResult, preState, preEpoch) - return commitEvent - } + relays: List = groupRelays(nostrGroupId), + ): OutboundGroupEvent = + commitAndPublish(nostrGroupId, relays) { + groupManager.stageRemoveMember(nostrGroupId, targetLeafIndex) + }.event /** * Update group metadata (name, description, etc.) via a GroupContextExtensions proposal. @@ -588,23 +751,16 @@ class MarmotManager( suspend fun updateGroupMetadata( nostrGroupId: HexKey, metadata: MarmotGroupData, + relays: List = groupRelays(nostrGroupId), ): OutboundGroupEvent { val group = groupManager.getGroup(nostrGroupId) ?: throw IllegalStateException("Not a member of group $nostrGroupId") val preserved = group.extensions.filter { it.extensionType != MarmotGroupData.EXTENSION_ID_INT } val merged = preserved + metadata.toExtension() - val (preState, preEpoch) = preCommit(nostrGroupId) - val commitResult = groupManager.updateGroupExtensions(nostrGroupId, merged) - val commitEvent = - outboundProcessor.buildCommitEvent( - nostrGroupId = nostrGroupId, - commitBytes = commitResult.framedCommitBytes, - exporterKey = commitResult.preCommitExporterSecret, - ) - inboundProcessor.markMessageProcessed(commitEvent.marmotMessageId) - recordLocalCommit(nostrGroupId, commitResult, preState, preEpoch) - return commitEvent + return commitAndPublish(nostrGroupId, relays) { + groupManager.stageUpdateGroupExtensions(nostrGroupId, merged) + }.event } // --- KeyPackage Management --- @@ -812,6 +968,16 @@ class MarmotManager( * absorb relay/system clock skew and out-of-order publishes. */ internal val GROUP_EVENT_REFETCH_OVERLAP_SEC: Long = TimeUtils.ONE_DAY.toLong() + + /** + * How often the settler re-checks an open pass. + * + * A quarter of the quiescence window, so a pass that goes quiet settles + * promptly without the poll itself becoming the thing that decides + * timing. The pass's own monotonic deadlines decide when it closes; + * this only decides how soon afterwards we notice. + */ + internal const val CONVERGENCE_POLL_MS: Long = 250L } } diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublisher.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublisher.kt new file mode 100644 index 0000000000..9808f0bb68 --- /dev/null +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublisher.kt @@ -0,0 +1,41 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl + +/** + * Publishes an event and reports whether the publish obligation succeeded. + * + * `protocol-core/publish-lifecycle.md` sets the bar: at least one endpoint in + * the recipient scope must return an ACKNOWLEDGED ACCEPT. Over the Nostr + * transport that is an `OK true` from a relay. Returning true for "queued", + * "sent", or "no error yet" would defeat the whole rule — the point is that + * some peer can now learn the new epoch, and a write nobody accepted gives no + * such assurance. + */ +fun interface MarmotPublisher { + suspend fun publish( + event: Event, + relays: Set, + ): Boolean +} diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManagerLeaveRejoinTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManagerLeaveRejoinTest.kt index 09f5c58d3c..1fc694f21c 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManagerLeaveRejoinTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManagerLeaveRejoinTest.kt @@ -224,7 +224,11 @@ class MarmotManagerLeaveRejoinTest { val mls = InMemoryMlsGroupStateStore() val kp = InMemoryKeyPackageBundleStore() val msg = InMemoryMarmotMessageStore() - return Fixture(MarmotManager(signer, mls, msg, kp), mls, kp, msg) + // Publish-before-apply needs an acknowledged accept, so a manager with + // no publisher can never advance group state. This stands in for a + // relay that accepts everything. + val acceptingRelay = MarmotPublisher { _, _ -> true } + return Fixture(MarmotManager(signer, mls, msg, kp, acceptingRelay), mls, kp, msg) } } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt new file mode 100644 index 0000000000..9100f51ea3 --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt @@ -0,0 +1,313 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData +import com.vitorpamplona.quartz.marmot.protocolCore.GroupLifecycleState +import com.vitorpamplona.quartz.marmot.protocolCore.LocalOutboundGate +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl +import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertTrue + +/** + * `protocol-core/publish-lifecycle.md`: a locally generated group-state change + * MUST NOT become local canonical state until its publish obligation succeeded. + * + * The rule is not "roll back if the publish fails". Applying first and undoing + * afterwards leaves a window in which this client's canonical state is an epoch + * no peer has, and a crash inside that window makes the fork permanent. So + * these tests assert the group never moves at all until an acknowledgement + * arrives. + */ +class MarmotPublishBeforeApplyTest { + private val relay: NormalizedRelayUrl = RelayUrlNormalizer.normalizeOrNull("wss://relay.example.com")!! + + /** Records what was handed to it, and answers with a fixed verdict. */ + private class RecordingPublisher( + private val accepts: Boolean, + ) : MarmotPublisher { + val published = mutableListOf() + + override suspend fun publish( + event: Event, + relays: Set, + ): Boolean { + published.add(event) + return accepts + } + } + + private class Fixture( + val manager: MarmotManager, + val publisher: RecordingPublisher, + val groupId: String, + val bobKeyPackage: ByteArray, + val bobPubKey: String, + ) + + private suspend fun fixture(accepts: Boolean): Fixture { + val publisher = RecordingPublisher(accepts) + val signer = NostrSignerInternal(KeyPair()) + val manager = + MarmotManager( + signer, + InMemoryStateStore(), + publisher = publisher, + ) + val groupId = "a".repeat(64) + manager.createGroup( + groupId, + MarmotGroupData( + nostrGroupId = groupId, + adminPubkeys = listOf(signer.pubKey), + relays = listOf(relay.url), + ), + ) + + val bob = KeyPair() + val bundle = + manager.groupManager + .getGroup(groupId)!! + .createKeyPackage(bob.pubKey, ByteArray(0)) + return Fixture(manager, publisher, groupId, bundle.keyPackage.toTlsBytes(), bob.pubKey.toHexKey()) + } + + /** + * Creation is the one exception: a one-member epoch-0 group has no peer + * that failure to publish could fork, so its obligation is empty and + * immediately satisfied. + */ + @Test + fun groupCreationSatisfiesAnEmptyObligation() = + runBlocking { + val fx = fixture(accepts = true) + assertEquals(GroupLifecycleState.STABLE, fx.manager.lifecycle(fx.groupId)) + assertEquals( + 0L, + fx.manager.groupManager + .getGroup(fx.groupId)!! + .epoch, + ) + assertTrue(fx.publisher.published.isEmpty(), "creating a group publishes no group message") + } + + /** An acknowledged commit becomes canonical and the group returns to Stable. */ + @Test + fun anAcknowledgedCommitBecomesCanonical() = + runBlocking { + val fx = fixture(accepts = true) + val before = + fx.manager.groupManager + .getGroup(fx.groupId)!! + .epoch + + fx.manager.addMember( + nostrGroupId = fx.groupId, + memberPubKey = fx.bobPubKey, + keyPackageBytes = fx.bobKeyPackage, + keyPackageEventId = "c".repeat(64), + relays = listOf(relay), + ) + + assertEquals(1, fx.publisher.published.size) + assertEquals( + before + 1, + fx.manager.groupManager + .getGroup(fx.groupId)!! + .epoch, + ) + assertEquals(GroupLifecycleState.STABLE, fx.manager.lifecycle(fx.groupId)) + assertTrue( + fx.manager.publishGate + .pendingFor(fx.groupId) + .isEmpty(), + ) + } + + /** + * The headline case. No relay accepted, so the group stays exactly where it + * was — same epoch, same GroupContext, byte for byte. + */ + @Test + fun anUnacknowledgedCommitNeverBecomesCanonical() = + runBlocking { + val fx = fixture(accepts = false) + val beforeEpoch = + fx.manager.groupManager + .getGroup(fx.groupId)!! + .epoch + val beforeContext = + fx.manager.groupManager + .snapshot(fx.groupId)!! + .groupContext + .toTlsBytes() + + val (_, welcome) = + fx.manager.addMember( + nostrGroupId = fx.groupId, + memberPubKey = fx.bobPubKey, + keyPackageBytes = fx.bobKeyPackage, + keyPackageEventId = "c".repeat(64), + relays = listOf(relay), + ) + + assertEquals(1, fx.publisher.published.size, "it was still offered to the relay") + assertEquals( + beforeEpoch, + fx.manager.groupManager + .getGroup(fx.groupId)!! + .epoch, + ) + assertContentEquals( + beforeContext, + fx.manager.groupManager + .snapshot(fx.groupId)!! + .groupContext + .toTlsBytes(), + "an unpublished commit must leave the canonical state untouched", + ) + // And no Welcome: inviting someone into an epoch no relay accepted + // would point them at a group that exists nowhere else. + assertEquals(null, welcome) + } + + /** + * A raised outbound gate blocks all new local group-state work. + * + * `Leaving`, `Disbanding` and a realized `Removed` each mean this client + * has no standing to publish a new commit: it is on its way out, or already + * out. Preparing one anyway would produce an epoch nobody will accept, so + * the attempt fails loudly rather than silently forking. + */ + @Test + fun anOutboundGateBlocksNewCommits() = + runBlocking { + val fx = fixture(accepts = true) + assertTrue(fx.manager.publishGate.canPrepareLocalCommit(fx.groupId)) + + fx.manager.publishGate.raiseGate(fx.groupId, LocalOutboundGate.LEAVING) + assertEquals(LocalOutboundGate.LEAVING, fx.manager.publishGate.outboundGate(fx.groupId)) + + assertFailsWith { + fx.manager.updateGroupMetadata( + fx.groupId, + MarmotGroupData(nostrGroupId = fx.groupId, adminPubkeys = listOf(fx.manager.signer.pubKey)), + listOf(relay), + ) + } + assertTrue(fx.publisher.published.isEmpty(), "a gated commit is never even offered to a relay") + + // Cleared, the same commit goes through. + fx.manager.publishGate.clearGate(fx.groupId) + fx.manager.updateGroupMetadata( + fx.groupId, + MarmotGroupData(nostrGroupId = fx.groupId, adminPubkeys = listOf(fx.manager.signer.pubKey)), + listOf(relay), + ) + assertEquals(1, fx.publisher.published.size) + } + + /** + * A group whose publisher never acknowledges anything can still be read. + * It simply cannot advance — which is the safe direction to fail. + */ + @Test + fun aFailedPublishLeavesTheGroupUsable() = + runBlocking { + val fx = fixture(accepts = false) + fx.manager.addMember( + nostrGroupId = fx.groupId, + memberPubKey = fx.bobPubKey, + keyPackageBytes = fx.bobKeyPackage, + keyPackageEventId = "c".repeat(64), + relays = listOf(relay), + ) + + assertEquals(GroupLifecycleState.STABLE, fx.manager.lifecycle(fx.groupId)) + assertTrue( + fx.manager.publishGate + .pendingFor(fx.groupId) + .isEmpty(), + "a failed obligation is discarded, not left pending forever", + ) + // A second attempt is allowed: nothing was consumed by the failure. + val retry = + fx.manager.addMember( + nostrGroupId = fx.groupId, + memberPubKey = fx.bobPubKey, + keyPackageBytes = fx.bobKeyPackage, + keyPackageEventId = "c".repeat(64), + relays = listOf(relay), + ) + assertEquals(2, fx.publisher.published.size) + assertTrue( + retry.first.signedEvent.id + .isNotEmpty(), + ) + } + + /** The group's own relay list is the default recipient scope. */ + @Test + fun theRecipientScopeComesFromTheGroupsOwnRelayList() = + runBlocking { + val fx = fixture(accepts = true) + assertEquals(listOf(relay), fx.manager.groupRelays(fx.groupId)) + } + + private class InMemoryStateStore : com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore { + private val states = mutableMapOf() + private val retained = mutableMapOf>() + + override suspend fun save( + nostrGroupId: String, + state: ByteArray, + ) { + states[nostrGroupId] = state + } + + override suspend fun load(nostrGroupId: String): ByteArray? = states[nostrGroupId] + + override suspend fun delete(nostrGroupId: String) { + states.remove(nostrGroupId) + retained.remove(nostrGroupId) + } + + override suspend fun listGroups(): List = states.keys.toList() + + override suspend fun saveRetainedEpochs( + nostrGroupId: String, + epochs: List, + ) { + retained[nostrGroupId] = epochs + } + + override suspend fun loadRetainedEpochs(nostrGroupId: String): List = retained[nostrGroupId] ?: emptyList() + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt index b51b1f71b6..0393270d61 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt @@ -331,6 +331,80 @@ class MlsGroupManager( result } + /** + * A locally prepared Commit that has NOT been applied. + * + * `protocol-core/publish-lifecycle.md` requires publish-before-apply: a + * locally generated group-state change must not become canonical until its + * publish obligation is confirmed. Applying first and rolling back on + * failure is not equivalent — between the two there is a window in which + * this client is forked from every peer, and a crash inside that window + * makes the fork permanent. + * + * So the commit is prepared on a CLONE restored from [priorState]. The live + * group is untouched, keeps its pending proposals (which is exactly the + * "proposal stays available for retry" rule on failure), and [pendingState] + * becomes canonical only via [installState] once publication is confirmed. + */ + class StagedCommit( + val result: CommitResult, + /** Canonical state the commit was generated from. */ + val priorState: MlsGroupState, + /** What becomes canonical once the publish obligation succeeds. */ + val pendingState: MlsGroupState, + ) + + /** + * Prepare a Commit without applying it, by running [prepare] on a clone. + * + * The clone's pre-commit exporter secret equals the live group's, so the + * outbound kind:445 is outer-encrypted with the same epoch-N key it would + * have been either way. + */ + private suspend fun stage( + nostrGroupId: HexKey, + prepare: (MlsGroup) -> CommitResult, + ): StagedCommit = + mutex.withLock { + val live = requireGroup(nostrGroupId) + val priorState = live.saveState() + val clone = MlsGroup.restore(priorState) + val result = prepare(clone) + StagedCommit(result, priorState, clone.saveState()) + } + + /** Stage an Add. See [StagedCommit] for why this does not apply. */ + suspend fun stageAddMember( + nostrGroupId: HexKey, + keyPackageBytes: ByteArray, + ): StagedCommit = stage(nostrGroupId) { it.addMember(keyPackageBytes) } + + /** Stage a Remove. See [StagedCommit] for why this does not apply. */ + suspend fun stageRemoveMember( + nostrGroupId: HexKey, + targetLeafIndex: Int, + ): StagedCommit = stage(nostrGroupId) { it.removeMember(targetLeafIndex) } + + /** Stage a GroupContextExtensions change. See [StagedCommit]. */ + suspend fun stageUpdateGroupExtensions( + nostrGroupId: HexKey, + extensions: List, + ): StagedCommit { + val live = requireGroup(nostrGroupId) + val currentMarmot = live.currentMarmotData() + val adminsConfigured = currentMarmot != null && currentMarmot.adminPubkeys.isNotEmpty() + check(!adminsConfigured || live.isLocalAdmin()) { + "MIP-01: only admins may update group extensions" + } + return stage(nostrGroupId) { clone -> + clone.proposeGroupContextExtensions(extensions) + clone.commit() + } + } + + /** Stage a self-update / empty Commit. See [StagedCommit]. */ + suspend fun stageCommit(nostrGroupId: HexKey): StagedCommit = stage(nostrGroupId) { it.commit() } + /** * Process a received Commit, advancing the epoch. * diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt new file mode 100644 index 0000000000..8f8fce335c --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt @@ -0,0 +1,329 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.protocolCore + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupState +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.utils.sha256.sha256 +import kotlinx.coroutines.sync.Mutex +import kotlinx.coroutines.sync.withLock + +/** + * One unresolved publish obligation + * (`protocol-core/publish-lifecycle.md`, "Publish obligation"). + * + * The four protocol-relevant parts are the outbound bytes, their recipient + * scope, the prior canonical state they were generated from, and the pending + * state they would make canonical. All four are here because all four are + * needed after a restart: without the bytes a retry would have to generate a + * REPLACEMENT commit (which peers would see as a second, competing one), and + * without the pending state a confirmed-but-unapplied obligation could not be + * completed at all. + */ +class MarmotPublishObligation( + val groupId: HexKey, + /** `SHA-256` of the outbound bytes. Stable across restart and retry. */ + val obligationId: HexKey, + /** The exact bytes to publish. A safe retry republishes THESE, byte for byte. */ + val outboundBytes: ByteArray, + /** Endpoints an acknowledged accept may come from. */ + val recipientScope: List, + val priorState: MlsGroupState, + val pendingState: MlsGroupState, +) { + fun encodeTls(): ByteArray { + val writer = TlsWriter() + writer.putOpaqueVarInt(groupId.encodeToByteArray()) + writer.putOpaqueVarInt(outboundBytes) + writer.putUint16(recipientScope.size) + recipientScope.forEach { writer.putOpaqueVarInt(it.encodeToByteArray()) } + writer.putOpaqueVarInt(priorState.encodeTls()) + writer.putOpaqueVarInt(pendingState.encodeTls()) + return writer.toByteArray() + } + + companion object { + fun idFor(outboundBytes: ByteArray): HexKey = sha256(outboundBytes).toHexKey() + + fun decodeTls(bytes: ByteArray): MarmotPublishObligation { + val reader = TlsReader(bytes) + val groupId = reader.readOpaqueVarInt().decodeToString() + val outbound = reader.readOpaqueVarInt() + val scopeCount = reader.readUint16() + val scope = (0 until scopeCount).map { reader.readOpaqueVarInt().decodeToString() } + val prior = MlsGroupState.decodeTls(reader.readOpaqueVarInt()) + val pending = MlsGroupState.decodeTls(reader.readOpaqueVarInt()) + return MarmotPublishObligation( + groupId = groupId, + obligationId = idFor(outbound), + outboundBytes = outbound, + recipientScope = scope, + priorState = prior, + pendingState = pending, + ) + } + } +} + +/** Durable storage for unresolved publish obligations. */ +interface MarmotPublishObligationStore { + suspend fun save( + obligationId: HexKey, + bytes: ByteArray, + ) + + suspend fun delete(obligationId: HexKey) + + suspend fun loadAll(): List +} + +/** Non-durable default. A client that uses this loses publish-before-apply across restart. */ +class InMemoryPublishObligationStore : MarmotPublishObligationStore { + private val entries = LinkedHashMap() + + override suspend fun save( + obligationId: HexKey, + bytes: ByteArray, + ) { + entries[obligationId] = bytes + } + + override suspend fun delete(obligationId: HexKey) { + entries.remove(obligationId) + } + + override suspend fun loadAll(): List = entries.values.toList() +} + +/** Why a publish attempt ended. */ +enum class PublishOutcome { + /** At least one endpoint in the recipient scope acknowledged an accept. */ + CONFIRMED, + + /** Every endpoint rejected, or the attempt is known not to have been accepted. */ + FAILED, +} + +/** + * Enforces publish-before-apply for locally generated group-state changes + * (`protocol-core/publish-lifecycle.md`). + * + * ## Why staging rather than apply-and-roll-back + * + * Applying a local commit and undoing it if publication fails looks equivalent + * and is not. Between the two there is a window in which this client's + * canonical state is an epoch no peer has, and a crash inside that window makes + * the fork permanent — the one outcome the rule exists to prevent. So the + * commit is prepared on a clone, the live group never advances, and the pending + * state becomes canonical only on a confirmed accept. + * + * ## What counts as confirmed + * + * At least one acknowledged accept from an endpoint in the obligation's + * recipient scope. Queued, sent, or "no error yet" are explicitly NOT success: + * the whole point is that some peer can now learn the new epoch. A transport + * MAY require further fanout afterwards, but that fanout must not hold the + * group in `PendingPublish`. + * + * ## Restart + * + * A process interruption does not resolve an obligation. An obligation whose + * acknowledgement is unknown after restart is still `PendingPublish`, and a + * safe retry republishes the byte-identical bytes rather than generating a + * replacement Commit — a replacement would be a second commit at the same + * epoch, i.e. a fork this client caused itself. + */ +class MarmotPublishGate( + private val groupManager: MlsGroupManager, + private val store: MarmotPublishObligationStore = InMemoryPublishObligationStore(), +) { + private val mutex = Mutex() + private val pending = LinkedHashMap() + private val gates = mutableMapOf() + private val lifecycles = mutableMapOf() + + /** Reload unresolved obligations. Call once at startup, after group restore. */ + suspend fun restore() = + mutex.withLock { + store.loadAll().forEach { bytes -> + try { + val obligation = MarmotPublishObligation.decodeTls(bytes) + pending[obligation.obligationId] = obligation + lifecycles[obligation.groupId] = GroupLifecycleState.PENDING_PUBLISH + } catch (_: Exception) { + // A corrupt record is not a reason to lose the others. The + // group stays Stable and its commit is simply never + // confirmed, which is the safe direction: nothing local + // becomes canonical that peers never saw. + } + } + } + + /** Lifecycle state for [groupId]. */ + suspend fun lifecycle(groupId: HexKey): GroupLifecycleState = + mutex.withLock { + lifecycles[groupId] ?: GroupLifecycleState.STABLE + } + + /** The outbound gate blocking [groupId], if any. */ + suspend fun outboundGate(groupId: HexKey): LocalOutboundGate? = mutex.withLock { gates[groupId] } + + /** + * Whether a new local commit may be prepared for [groupId]. + * + * Only `Stable` may, and only with no outbound gate: `Leaving`, + * `Disbanding` and a realized `Removed` each block all new outbound work. + */ + suspend fun canPrepareLocalCommit(groupId: HexKey): Boolean = + mutex.withLock { + val state = lifecycles[groupId] ?: GroupLifecycleState.STABLE + state.canPrepareLocalCommit && gates[groupId] == null + } + + /** Raise an outbound gate — a sent SelfRemove, a disband request, a realized removal. */ + suspend fun raiseGate( + groupId: HexKey, + gate: LocalOutboundGate, + ) = mutex.withLock { + gates[groupId] = gate + Unit + } + + /** Clear an outbound gate. Only an authenticated re-join clears `REMOVED`. */ + suspend fun clearGate(groupId: HexKey) = + mutex.withLock { + gates.remove(groupId) + Unit + } + + /** Unresolved obligations for [groupId], oldest first. */ + suspend fun pendingFor(groupId: HexKey): List = + mutex.withLock { + pending.values.filter { it.groupId == groupId } + } + + /** Every unresolved obligation, oldest first. Retries republish these bytes verbatim. */ + suspend fun allPending(): List = mutex.withLock { pending.values.toList() } + + /** + * Record a prepared commit and move the group to `PendingPublish`. + * + * The record is durable BEFORE the caller publishes anything. Publishing + * first and recording after would leave a crash window in which peers have + * accepted a commit this client has no memory of preparing — and on + * restart it would generate a replacement, forking itself. + */ + suspend fun prepare( + groupId: HexKey, + staged: MlsGroupManager.StagedCommit, + outboundBytes: ByteArray, + recipientScope: List, + ): MarmotPublishObligation { + val obligation = + MarmotPublishObligation( + groupId = groupId, + obligationId = MarmotPublishObligation.idFor(outboundBytes), + outboundBytes = outboundBytes, + recipientScope = recipientScope, + priorState = staged.priorState, + pendingState = staged.pendingState, + ) + store.save(obligation.obligationId, obligation.encodeTls()) + mutex.withLock { + pending[obligation.obligationId] = obligation + lifecycles[groupId] = GroupLifecycleState.PENDING_PUBLISH + } + return obligation + } + + /** + * Resolve an obligation. + * + * On [PublishOutcome.CONFIRMED] the pending state becomes canonical; on + * [PublishOutcome.FAILED] it is discarded and the live group — which never + * advanced — is already correct, with its pending proposals still available + * for another attempt. + */ + suspend fun resolve( + obligationId: HexKey, + outcome: PublishOutcome, + ): GroupLifecycleState { + val obligation = mutex.withLock { pending[obligationId] } ?: return GroupLifecycleState.STABLE + + if (outcome == PublishOutcome.CONFIRMED) { + mutex.withLock { lifecycles[obligation.groupId] = GroupLifecycleState.MERGING } + // Applying happens outside the lock: installState persists, and a + // partially applied merge must never be observable, so the state + // swap is the single atomic step that ends it. + groupManager.installState(obligation.groupId, obligation.pendingState) + } + + store.delete(obligationId) + return mutex.withLock { + pending.remove(obligationId) + val stillPending = pending.values.any { it.groupId == obligation.groupId } + val next = + if (stillPending) GroupLifecycleState.PENDING_PUBLISH else GroupLifecycleState.STABLE + lifecycles[obligation.groupId] = next + next + } + } + + /** + * Satisfy an obligation with no bytes and no recipients, per the group + * creation exception. + * + * A one-member epoch-0 group has no peer that failure to publish could + * fork, so the obligation is immediately satisfied and epoch 0 becomes + * canonical with nothing sent. The exception is limited to creation and its + * immediately following founding Add — every later commit takes the normal + * path. + */ + suspend fun satisfyEmptyObligation(groupId: HexKey) = + mutex.withLock { + lifecycles[groupId] = GroupLifecycleState.STABLE + Unit + } + + /** Record a lifecycle state decided elsewhere (convergence, terminalization). */ + suspend fun setLifecycle( + groupId: HexKey, + state: GroupLifecycleState, + ) = mutex.withLock { + lifecycles[groupId] = state + Unit + } + + /** Forget everything about [groupId]. */ + suspend fun forget(groupId: HexKey) { + val ids = mutex.withLock { pending.values.filter { it.groupId == groupId }.map { it.obligationId } } + ids.forEach { store.delete(it) } + mutex.withLock { + ids.forEach { pending.remove(it) } + lifecycles.remove(groupId) + gates.remove(groupId) + } + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt index f0116434c4..65898448e9 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt @@ -413,6 +413,32 @@ class MarmotConvergenceWiringTest { assertIs(after) } + /** + * A pass whose group falls silent still settles. + * + * Inbound traffic ticks convergence opportunistically, so a busy group + * resolves itself. A group where the fork was the LAST thing to arrive has + * nothing to carry it — which is why `settleDueConvergence()` exists and + * why the app layer drives it while a pass is open. + */ + @Test + fun aQuietGroupStillSettlesThroughTheDueSweep() = + runBlocking { + val fork = buildFork() + var now = 0L + val obs = observer(fork.observerStateBytes) { now } + + obs.inbound.processGroupEvent(fork.commitA) + obs.inbound.processGroupEvent(fork.commitB) + // Nothing else ever arrives for this group. + assertEquals(1, obs.inbound.openConvergencePasses().size) + + now = ConvergencePolicy.V1.maxConvergencePassMs + assertEquals(1, obs.inbound.settleDueConvergence().size) + assertTrue(obs.inbound.openConvergencePasses().isEmpty()) + assertEquals(ConvergenceStatus.SETTLED, obs.inbound.convergenceStatus(groupId)) + } + /** The Marmot message id of a commit event, as the engine computes it. */ private suspend fun sha256Hex( event: GroupEvent, From f2b27fd6da6a2fd416e45fc1d333d28856ac4ec7 Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 20:27:06 +0000 Subject: [PATCH 14/79] feat(marmot): send the canonical unsigned app-payload shape MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Marmot app payloads are a Nostr event MINUS the signature, and we were sending them WITH one. A conformant decoder rejects a payload carrying a `sig` member at all, so every message we sent was refusable by any peer following the adopted spec — and a signed inner event is a valid standalone relay event, so one leaked plaintext could be republished publicly as a signed statement by its author. `MarmotAppEvent` is that shape, with the strict decoder the spec requires. Each rejection closes a different hole: a `sig` member for the reason above; an unknown top-level member, because two implementations that disagree about what to ignore disagree about the id preimage; a duplicate key, because "last one wins" and "first one wins" are both defensible and yield different events from identical bytes; and a mismatched id, because the id is what edits, history and dedup all reference. Duplicate-key detection needed its own scan. Every JSON library here resolves duplicates before the caller sees them, so `MarmotJson` walks the raw text tracking nesting depth and string boundaries — it has to be right about exactly one thing, where a top-level key sits. The id is unchanged by the switch. NIP-01 hashes [0, pubkey, created_at, kind, tags, content], which never covered the signature, so message identity survives and existing history still lines up. The Android pipeline already treated inner events as unsigned rumors with an empty sig and skipped verification, so the app layer needs no change: the empty `sig` is re-added at the inbound boundary instead of travelling on the wire. Also adds the two Stage 7 kinds. Kind 1009 edits carry the deterministic tie-break the spec implies but does not spell out — two devices of one account can stamp the same second, and without it two readers would render different text for the same message forever. Kind 1210 system rows are synthesized from canonical state rather than received, which is what makes them unforgeable by a single member. Verified against the spec's published fixture: our canonical serialization hashes to the exact event id the spec prints for its kind 1210 example. That is the only check that distinguishes correct from merely self-consistent. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../quartz/marmot/MarmotInboundProcessor.kt | 59 +++-- .../quartz/marmot/MarmotOutboundProcessor.kt | 24 +- .../foundation/appEvents/MarmotAppEvent.kt | 233 ++++++++++++++++++ .../marmot/foundation/appEvents/MarmotJson.kt | 176 +++++++++++++ .../foundation/appEvents/MarmotMessageEdit.kt | 98 ++++++++ .../foundation/appEvents/MarmotSystemEvent.kt | 177 +++++++++++++ .../appEvents/MarmotAppEventTest.kt | 229 +++++++++++++++++ 7 files changed, 981 insertions(+), 15 deletions(-) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotAppEvent.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotJson.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotMessageEdit.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemEvent.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotAppEventTest.kt diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt index 385a85744e..9a876ca8f2 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt @@ -20,6 +20,7 @@ */ package com.vitorpamplona.quartz.marmot +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotAppEvent import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageRotationManager import com.vitorpamplona.quartz.marmot.mip02Welcome.WelcomeEvent import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEvent @@ -539,20 +540,20 @@ class MarmotInboundProcessor( // canonical epoch by construction. processCandidateBranchMessage(groupId, bytes) } else { - val innerJson = decrypted.content.decodeToString() + val payload = decrypted.content.decodeToString() + val author = payloadAuthor(payload) - // MIP-03: if the inner application payload is a Nostr event, - // its `pubkey` field MUST equal the MLS sender's credential - // identity. Reject any mismatch — otherwise a group member - // could mint events claiming a different author. Non-event - // payloads (raw bytes via buildGroupEventFromBytes) bypass - // this check since there is no author field to verify. + // `foundation/application-messages.md`, "Receiver + // authentication": the inner author MUST equal the account + // the MLS sender leaf authenticates. Without it any member + // could mint messages attributed to anyone else in the + // group. Payloads with no author field at all (raw bytes + // via buildGroupEventFromBytes) have nothing to compare. val senderIdentity = groupManager.memberIdentityHex(groupId, decrypted.senderLeafIndex) - val innerEvent = Event.fromJsonOrNull(innerJson) - if (innerEvent != null && (senderIdentity == null || innerEvent.pubKey != senderIdentity)) { + if (author != null && (senderIdentity == null || author != senderIdentity)) { return GroupEventResult.Error( groupId, - "MIP-03: inner event pubkey (${innerEvent.pubKey}) does not match MLS sender identity ($senderIdentity)", + "inner event pubkey ($author) does not match MLS sender identity ($senderIdentity)", ) } @@ -561,13 +562,13 @@ class MarmotInboundProcessor( // incumbent is rebuilt and rescored at every resolution, so // counting only divergent branches would let any fork win // the witness steps unopposed. - if (innerEvent != null && senderIdentity != null) { + if (author != null && senderIdentity != null) { convergence.recordCanonicalWitness(groupId, decrypted.epoch, senderIdentity) } GroupEventResult.ApplicationMessage( groupId = groupId, - innerEventJson = innerJson, + innerEventJson = asEventShapedJson(payload), senderLeafIndex = decrypted.senderLeafIndex, epoch = decrypted.epoch, ) @@ -624,6 +625,36 @@ class MarmotInboundProcessor( } } + /** + * The account a payload claims as its author, or null when it has none. + * + * The canonical shape is tried first, because that is what a conformant + * peer sends and its checks are the strict ones. The legacy fall-back + * exists only for payloads this client itself wrote before the switch to + * the unsigned shape: those carry a `sig` member, which the strict decoder + * refuses by design. It is deliberately not a general "accept anything" + * path — a payload that is neither shape still has no author, and still + * fails the comparison rather than passing it. + */ + private fun payloadAuthor(payload: String): HexKey? = + MarmotAppEvent.decodeOrNull(payload)?.pubKey + ?: Event.fromJsonOrNull(payload)?.pubKey + + /** + * Re-shape a canonical payload into the Event-shaped JSON the app layer + * consumes. + * + * The application pipeline is built around `Event`, which requires a `sig` + * member; the wire form must not carry one. Rather than force every + * consumer to learn a second shape, the empty signature is re-added here at + * the boundary. The id is unaffected either way — NIP-01 never hashed the + * signature — so a message keeps one identity across the conversion. + */ + private fun asEventShapedJson(payload: String): String { + val appEvent = MarmotAppEvent.decodeOrNull(payload) ?: return payload + return appEvent.toJson().dropLast(1) + ",\"sig\":\"\"}" + } + /** * Try an app message against the retained candidate branches. * @@ -646,9 +677,9 @@ class MarmotInboundProcessor( "Application message decrypts on no canonical epoch or retained candidate branch", ) - val innerEvent = Event.fromJsonOrNull(candidate.content.decodeToString()) + val author = payloadAuthor(candidate.content.decodeToString()) val sender = candidate.senderAccount - val valid = innerEvent != null && sender != null && innerEvent.pubKey == sender + val valid = author != null && sender != null && author == sender if (valid && sender != null) { convergence.recordWitness(groupId, candidate.stateId, sender) } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotOutboundProcessor.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotOutboundProcessor.kt index 7d2da13955..a73888bef6 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotOutboundProcessor.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotOutboundProcessor.kt @@ -20,6 +20,7 @@ */ package com.vitorpamplona.quartz.marmot +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotAppEvent import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEvent import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEventEncryption @@ -84,7 +85,28 @@ class MarmotOutboundProcessor( suspend fun buildGroupEvent( nostrGroupId: HexKey, innerEvent: Event, - ): OutboundGroupEvent = buildGroupEventFromBytes(nostrGroupId, innerEvent.toJson().encodeToByteArray()) + ): OutboundGroupEvent = buildAppEvent(nostrGroupId, MarmotAppEvent.fromEvent(innerEvent)) + + /** + * Send a Marmot app event — the canonical, UNSIGNED payload shape + * (`foundation/application-messages.md`). + * + * The signature is dropped rather than merely left empty, and both halves + * of that matter. A conformant decoder REJECTS a payload carrying a `sig` + * member at all, so an event serialized with `"sig":""` is refused by every + * peer; and a payload with a real signature would be a valid standalone + * relay event, so one leaked plaintext could be republished publicly as a + * signed statement by its author. + * + * The event id is unchanged by the conversion: NIP-01 hashes + * `[0, pubkey, created_at, kind, tags, content]`, which never included the + * signature. Message identity therefore survives the switch, and history + * written under the old shape still lines up. + */ + suspend fun buildAppEvent( + nostrGroupId: HexKey, + appEvent: MarmotAppEvent, + ): OutboundGroupEvent = buildGroupEventFromBytes(nostrGroupId, appEvent.encodeToPayload()) /** * Encrypt raw bytes and build a GroupEvent for publishing. diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotAppEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotAppEvent.kt new file mode 100644 index 0000000000..5e63e03345 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotAppEvent.kt @@ -0,0 +1,233 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.foundation.appEvents + +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.TagArray +import com.vitorpamplona.quartz.nip01Core.crypto.EventHasher + +/** + * A Marmot app event — the plaintext inside an MLS application message + * (`foundation/application-messages.md`). + * + * It has the Nostr event shape **minus `sig`**, and the missing signature is + * the point rather than an omission. MLS already authenticates the sender as a + * group member and `pubkey` names the Marmot account that wrote it, so a + * signature would add nothing — while making every plaintext a valid standalone + * relay event, so one leaked message could be republished publicly as a signed + * statement by its author. A client MUST NOT sign one. + * + * The `id` is still the ordinary NIP-01 event id over + * `[0, pubkey, created_at, kind, tags, content]`, and decoders MUST reject a + * payload whose id does not match — which means every implementation has to + * produce byte-identical canonical JSON. That is why the id goes through + * [EventHasher] rather than being hashed over hand-built text here. + */ +class MarmotAppEvent( + val id: HexKey, + val pubKey: HexKey, + val createdAt: Long, + val kind: Int, + val tags: TagArray, + val content: String, +) { + /** Whether [id] matches the canonical id of the other members. */ + fun hasValidId(): Boolean = EventHasher.hashIdCheck(id, pubKey, createdAt, kind, tags, content) + + /** + * The canonical wire form: one UTF-8 JSON object with exactly the six + * members, in this order, and no others. + */ + fun toJson(): String { + val sb = StringBuilder(128 + content.length) + sb.append("{\"id\":\"").append(id) + sb.append("\",\"pubkey\":\"").append(pubKey) + sb.append("\",\"created_at\":").append(createdAt) + sb.append(",\"kind\":").append(kind) + sb.append(",\"tags\":") + appendTags(sb, tags) + sb.append(",\"content\":") + appendJsonString(sb, content) + sb.append('}') + return sb.toString() + } + + fun encodeToPayload(): ByteArray = toJson().encodeToByteArray() + + companion object { + /** Marmot's default ordinary chat kind. */ + const val KIND_CHAT = 9 + + /** In-place replacement of a prior message's text. */ + const val KIND_EDIT = 1009 + + /** A durable group system row, synthesized from canonical state. */ + const val KIND_SYSTEM = 1210 + + private val ALLOWED_MEMBERS = setOf("id", "pubkey", "created_at", "kind", "tags", "content") + + val EMPTY_TAGS: TagArray = emptyArray() + + /** + * Drop a signed Nostr event down to its Marmot app-event shape. + * + * The id survives unchanged: NIP-01 hashes + * `[0, pubkey, created_at, kind, tags, content]`, which never covered + * the signature. That is what lets a client switch to the canonical + * shape without renumbering its own history. + */ + fun fromEvent(event: Event) = + MarmotAppEvent( + id = event.id, + pubKey = event.pubKey, + createdAt = event.createdAt, + kind = event.kind, + tags = event.tags, + content = event.content, + ) + + /** Build one, computing the canonical id from the other members. */ + fun build( + pubKey: HexKey, + kind: Int, + content: String, + createdAt: Long, + tags: TagArray = EMPTY_TAGS, + ) = MarmotAppEvent( + id = EventHasher.hashId(pubKey, createdAt, kind, tags, content), + pubKey = pubKey, + createdAt = createdAt, + kind = kind, + tags = tags, + content = content, + ) + + /** + * Decode a Marmot app payload, strictly. + * + * Every rejection here is required by the spec, and each closes a + * different hole: + * + * - a `sig` member, because a signed inner event is republishable as a + * public statement by its author; + * - an unknown top-level member, because two implementations that + * disagree about what to ignore disagree about the id preimage; + * - a duplicate key, because "last one wins" and "first one wins" are + * both defensible and yield different events from identical bytes; + * - an id that does not match, because the id is what edits, history + * and deduplication all reference. + * + * @throws IllegalArgumentException naming the reason. + */ + fun decode(json: String): MarmotAppEvent { + val obj = MarmotJson.parseObject(json) + + require(!obj.containsKey("sig")) { + "Marmot app payload MUST NOT carry a Nostr signature" + } + val unknown = obj.keys - ALLOWED_MEMBERS + require(unknown.isEmpty()) { + "Marmot app payload has unknown member(s): ${unknown.sorted()}" + } + require(obj.duplicateKeys.isEmpty()) { + "Marmot app payload has duplicate key(s): ${obj.duplicateKeys.sorted()}" + } + val missing = ALLOWED_MEMBERS - obj.keys + require(missing.isEmpty()) { + "Marmot app payload is missing member(s): ${missing.sorted()}" + } + + val event = + MarmotAppEvent( + id = obj.string("id"), + pubKey = obj.string("pubkey"), + createdAt = obj.long("created_at"), + kind = obj.int("kind"), + tags = obj.tags("tags"), + content = obj.string("content"), + ) + require(event.hasValidId()) { + "Marmot app payload id does not match its canonical serialization" + } + return event + } + + /** [decode], returning null instead of throwing. */ + fun decodeOrNull(json: String): MarmotAppEvent? = + try { + decode(json) + } catch (_: Exception) { + null + } + + private fun appendTags( + sb: StringBuilder, + tags: TagArray, + ) { + sb.append('[') + for (i in tags.indices) { + if (i > 0) sb.append(',') + sb.append('[') + val tag = tags[i] + for (j in tag.indices) { + if (j > 0) sb.append(',') + appendJsonString(sb, tag[j]) + } + sb.append(']') + } + sb.append(']') + } + + /** + * NIP-01 string escaping. + * + * The escape set is exactly the one NIP-01 pins, because this text also + * feeds the id preimage: escaping one more character than a peer does + * changes the hash, and the payload is then rejected as having a bad id. + */ + private fun appendJsonString( + sb: StringBuilder, + value: String, + ) { + sb.append('"') + for (ch in value) { + when (ch) { + '"' -> sb.append("\\\"") + '\\' -> sb.append("\\\\") + '\n' -> sb.append("\\n") + '\r' -> sb.append("\\r") + '\t' -> sb.append("\\t") + '\u0008' -> sb.append("\\b") + '\u000C' -> sb.append("\\f") + else -> + if (ch < ' ') { + sb.append("\\u") + sb.append(ch.code.toString(16).padStart(4, '0')) + } else { + sb.append(ch) + } + } + } + sb.append('"') + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotJson.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotJson.kt new file mode 100644 index 0000000000..022fc4d381 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotJson.kt @@ -0,0 +1,176 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.foundation.appEvents + +import kotlinx.serialization.json.Json +import kotlinx.serialization.json.JsonArray +import kotlinx.serialization.json.JsonObject +import kotlinx.serialization.json.JsonPrimitive +import kotlinx.serialization.json.jsonPrimitive + +/** + * A parsed top-level JSON object, keeping the one thing every JSON library + * throws away: which keys appeared more than once. + * + * `foundation/application-messages.md` requires a decoder to REJECT a Marmot app + * payload with duplicate keys, and a `Map`-shaped parse cannot tell you that — + * it has already picked a winner. "Last one wins" and "first one wins" are both + * defensible, which is exactly the problem: two implementations would derive + * different events, and therefore different ids, from identical bytes. + */ +class MarmotJsonObject( + private val values: JsonObject, + /** Keys that appeared more than once at the top level. */ + val duplicateKeys: Set, +) { + val keys: Set get() = values.keys + + fun containsKey(name: String) = values.containsKey(name) + + fun string(name: String): String = requireNotNull(values[name]).jsonPrimitive.content + + fun long(name: String): Long = + requireNotNull(requireNotNull(values[name]).jsonPrimitive.content.toLongOrNull()) { + "$name is not an integer" + } + + fun int(name: String): Int = + requireNotNull(requireNotNull(values[name]).jsonPrimitive.content.toIntOrNull()) { + "$name is not an integer" + } + + fun tags(name: String): Array> { + val array = values[name] as? JsonArray ?: throw IllegalArgumentException("$name is not an array") + return Array(array.size) { i -> + val tag = array[i] as? JsonArray ?: throw IllegalArgumentException("$name[$i] is not an array") + Array(tag.size) { j -> + (tag[j] as? JsonPrimitive)?.content + ?: throw IllegalArgumentException("$name[$i][$j] is not a string") + } + } + } + + /** The raw element, for callers that need a nested object. */ + fun element(name: String) = values[name] +} + +/** Strict parsing helpers for Marmot app payloads. */ +object MarmotJson { + private val parser = Json { ignoreUnknownKeys = false } + + fun parseObject(json: String): MarmotJsonObject { + val element = parser.parseToJsonElement(json) + val obj = element as? JsonObject ?: throw IllegalArgumentException("payload is not a JSON object") + return MarmotJsonObject(obj, findDuplicateTopLevelKeys(json)) + } + + /** + * Scan the raw text for repeated top-level member names. + * + * A hand-rolled scan rather than a library call, because every JSON library + * this codebase has resolves duplicates before the caller sees them. It only + * has to be right about ONE thing — where a top-level key sits — so it + * tracks nesting depth and string boundaries and reads nothing else. + */ + private fun findDuplicateTopLevelKeys(json: String): Set { + val seen = mutableSetOf() + val duplicates = mutableSetOf() + var depth = 0 + var i = 0 + var expectingKey = false + + while (i < json.length) { + when (val ch = json[i]) { + '{' -> { + depth++ + if (depth == 1) expectingKey = true + } + + '}' -> depth-- + '[' -> depth++ + ']' -> depth-- + ',' -> if (depth == 1) expectingKey = true + '"' -> { + val end = endOfString(json, i) + if (depth == 1 && expectingKey) { + val key = unescape(json.substring(i + 1, end)) + if (!seen.add(key)) duplicates.add(key) + expectingKey = false + } + i = end + } + + else -> + if (ch != ' ' && ch != '\n' && ch != '\r' && ch != '\t' && ch != ':') { + expectingKey = false + } + } + i++ + } + return duplicates + } + + /** Index of the closing quote of the string starting at [start]. */ + private fun endOfString( + json: String, + start: Int, + ): Int { + var i = start + 1 + while (i < json.length) { + when (json[i]) { + '\\' -> i++ + '"' -> return i + } + i++ + } + throw IllegalArgumentException("unterminated string in payload") + } + + private fun unescape(raw: String): String { + if ('\\' !in raw) return raw + val sb = StringBuilder(raw.length) + var i = 0 + while (i < raw.length) { + val ch = raw[i] + if (ch != '\\' || i + 1 >= raw.length) { + sb.append(ch) + i++ + continue + } + when (val esc = raw[i + 1]) { + 'n' -> sb.append('\n') + 'r' -> sb.append('\r') + 't' -> sb.append('\t') + 'b' -> sb.append('\u0008') + 'f' -> sb.append('\u000C') + 'u' -> { + val hex = raw.substring(i + 2, minOf(i + 6, raw.length)) + sb.append(hex.toInt(16).toChar()) + i += 4 + } + + else -> sb.append(esc) + } + i += 2 + } + return sb.toString() + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotMessageEdit.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotMessageEdit.kt new file mode 100644 index 0000000000..ea63949556 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotMessageEdit.kt @@ -0,0 +1,98 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.foundation.appEvents + +import com.vitorpamplona.quartz.nip01Core.core.HexKey + +/** + * A kind `1009` message edit: an in-place replacement of a prior message's text + * (`foundation/application-messages.md`, "Message edits"). + * + * An edit is NOT chat. It must never render as its own row — the replacement is + * overlaid on the original body — and it must not advance an unread count: a + * reader who was caught up with the original is caught up with the edit. + */ +class MarmotMessageEdit( + /** Event id of the message being replaced. */ + val targetId: HexKey, + /** The replacement plaintext. Not JSON — a 1009's content is the body itself. */ + val replacement: String, + /** Orders competing edits. NOT a new activity timestamp for the target. */ + val createdAt: Long, + /** Account that authored the edit. */ + val author: HexKey, +) { + fun toAppEvent() = + MarmotAppEvent.build( + pubKey = author, + kind = MarmotAppEvent.KIND_EDIT, + content = replacement, + createdAt = createdAt, + tags = arrayOf(arrayOf("e", targetId)), + ) + + companion object { + /** + * Read an edit out of a decoded app event, or null when it is not one. + * + * Requires exactly one `e` tag: an edit that named several targets would + * leave every client to pick one, and they would not all pick the same. + */ + fun fromAppEvent(event: MarmotAppEvent): MarmotMessageEdit? { + if (event.kind != MarmotAppEvent.KIND_EDIT) return null + val targets = event.tags.filter { it.size >= 2 && it[0] == "e" } + if (targets.size != 1) return null + return MarmotMessageEdit( + targetId = targets[0][1], + replacement = event.content, + createdAt = event.createdAt, + author = event.pubKey, + ) + } + + /** + * Whether [edit] may replace a message authored by [originalAuthor]. + * + * Authorship is by Marmot ACCOUNT identity, not by leaf: a second device + * of the same account holds a different leaf and may still edit its own + * account's message. An edit from any other account is ignored outright + * — otherwise any member could rewrite anyone's words. + */ + fun isAuthorized( + edit: MarmotMessageEdit, + originalAuthor: HexKey, + ): Boolean = edit.author == originalAuthor + + /** + * The edit that wins for one target: the latest by `created_at`, with + * the event id breaking a tie. + * + * The tie-break matters more than it looks. Two devices of one account + * can stamp the same second, and without a deterministic rule two + * readers would render different text for the same message forever. + */ + fun selectOverlay(edits: List): MarmotMessageEdit? = + edits.maxWithOrNull( + compareBy { it.createdAt } + .thenBy { it.toAppEvent().id }, + ) + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemEvent.kt new file mode 100644 index 0000000000..24a70aad34 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemEvent.kt @@ -0,0 +1,177 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.foundation.appEvents + +import com.vitorpamplona.quartz.nip01Core.core.HexKey + +/** The group-state changes a kind `1210` row can record. */ +enum class MarmotSystemType( + val wireName: String, + val defaultText: String, +) { + MEMBER_ADDED("member_added", "Member added"), + MEMBER_REMOVED("member_removed", "Member removed"), + MEMBER_LEFT("member_left", "Member left"), + ADMIN_ADDED("admin_added", "Admin added"), + ADMIN_REMOVED("admin_removed", "Admin removed"), + GROUP_RENAMED("group_renamed", "Group renamed"), + GROUP_AVATAR_CHANGED("group_avatar_changed", "Group avatar changed"), + GROUP_DISBANDED("group_disbanded", "Group disbanded"), + ; + + companion object { + fun fromWire(name: String): MarmotSystemType? = entries.firstOrNull { it.wireName == name } + } +} + +/** + * A kind `1210` group system row + * (`foundation/application-messages.md`, "Group system events"). + * + * These rows are **synthesized locally from canonical group state**, not + * received as messages. That is what makes them trustworthy: a row derived from + * an MLS-authenticated commit cannot be forged by one member, and every client + * that applies the same commit derives the same row. A client MUST NOT wait for + * a 1210 *message* to learn that group state changed — the state notification + * is authoritative, and a 1210 that does arrive over the wire is an assertion by + * its sender, not a derived fact. + * + * They are also not chat: render them separately, and never treat [text] as a + * chat body. + */ +class MarmotSystemEvent( + val systemType: MarmotSystemType, + /** Committing member, when the change is attributable. */ + val actor: HexKey?, + /** The member the change concerns, for the member/admin types. */ + val subject: HexKey? = null, + /** New group name, for [MarmotSystemType.GROUP_RENAMED]. */ + val name: String? = null, + /** Human-readable fallback. Clients SHOULD render from the structured fields instead. */ + val text: String = systemType.defaultText, +) { + /** + * The `content` JSON. + * + * Built by hand rather than via a serializer because this string is inside + * the app event's id preimage: a library that reorders members or spaces + * them differently would produce a different id for the same row, and a + * peer would reject it. + */ + fun toContentJson(): String { + val sb = StringBuilder(128) + sb.append("{\"v\":").append(SCHEMA_VERSION) + sb.append(",\"system_type\":\"").append(systemType.wireName).append("\"") + sb.append(",\"text\":") + appendJsonString(sb, text) + sb.append(",\"data\":{") + var first = true + actor?.let { + sb.append("\"actor\":\"").append(it).append("\"") + first = false + } + subject?.let { + if (!first) sb.append(',') + sb.append("\"subject\":\"").append(it).append("\"") + first = false + } + name?.let { + if (!first) sb.append(',') + sb.append("\"name\":") + appendJsonString(sb, it) + } + sb.append("}}") + return sb.toString() + } + + /** + * The complete app event for this row. + * + * [author] is the account the row is attributed to — the committer for an + * attributable change. The row is anchored to the epoch the change reached, + * so [createdAt] should be that moment, not the moment it was rendered. + */ + fun toAppEvent( + author: HexKey, + createdAt: Long, + ) = MarmotAppEvent.build( + pubKey = author, + kind = MarmotAppEvent.KIND_SYSTEM, + content = toContentJson(), + createdAt = createdAt, + tags = arrayOf(arrayOf("system", systemType.wireName)), + ) + + companion object { + const val SCHEMA_VERSION = 1 + + /** + * Parse a 1210 row's content, or null when it is not one we understand. + * + * An unknown `system_type` returns null rather than throwing: the + * registry grows, and protocol processing MUST NOT reject an otherwise + * valid app payload just because its semantics are unfamiliar. The + * caller delivers it and declines to render it. + */ + fun fromAppEvent(event: MarmotAppEvent): MarmotSystemEvent? { + if (event.kind != MarmotAppEvent.KIND_SYSTEM) return null + return try { + val obj = MarmotJson.parseObject(event.content) + if (obj.int("v") != SCHEMA_VERSION) return null + val type = MarmotSystemType.fromWire(obj.string("system_type")) ?: return null + val data = obj.element("data")?.let { MarmotJson.parseObject(it.toString()) } + MarmotSystemEvent( + systemType = type, + actor = data?.takeIf { it.containsKey("actor") }?.string("actor"), + subject = data?.takeIf { it.containsKey("subject") }?.string("subject"), + name = data?.takeIf { it.containsKey("name") }?.string("name"), + text = if (obj.containsKey("text")) obj.string("text") else type.defaultText, + ) + } catch (_: Exception) { + null + } + } + + private fun appendJsonString( + sb: StringBuilder, + value: String, + ) { + sb.append('"') + for (ch in value) { + when (ch) { + '"' -> sb.append("ESC\"") + '\\' -> sb.append("\\\\") + '\n' -> sb.append("\\n") + '\r' -> sb.append("\\r") + '\t' -> sb.append("\\t") + else -> + if (ch < ' ') { + sb.append("\\u") + sb.append(ch.code.toString(16).padStart(4, '0')) + } else { + sb.append(ch) + } + } + } + sb.append('"') + } + } +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotAppEventTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotAppEventTest.kt new file mode 100644 index 0000000000..4937053aef --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotAppEventTest.kt @@ -0,0 +1,229 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.foundation.appEvents + +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertFalse +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * `foundation/application-messages.md` conformance. + * + * The load-bearing test is [matchesTheSpecPublishedSystemEventFixture]: the + * spec publishes one complete kind `1210` event together with the exact id it + * hashes to. Because decoders MUST reject a payload whose id does not match, + * canonical encoding is not a style question — one extra space or a reordered + * member and every peer rejects everything we send. Matching the published id + * is the only way to know we are right rather than merely self-consistent. + */ +class MarmotAppEventTest { + private val alice = "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798" + + @Test + fun matchesTheSpecPublishedSystemEventFixture() { + val row = MarmotSystemEvent(systemType = MarmotSystemType.GROUP_DISBANDED, actor = alice) + val event = row.toAppEvent(author = alice, createdAt = 1700000000L) + + assertEquals( + "{\"v\":1,\"system_type\":\"group_disbanded\"," + + "\"text\":\"Group disbanded\"," + + "\"data\":{\"actor\":\"" + alice + "\"}}", + row.toContentJson(), + ) + assertEquals("126e47076e4d0a75ed260b279c33ed433acd764fc80e2de2e0315a64116d1f52", event.id) + assertTrue(event.hasValidId()) + } + + @Test + fun roundTripsThroughItsCanonicalJson() { + val event = + MarmotAppEvent.build( + pubKey = alice, + kind = MarmotAppEvent.KIND_CHAT, + content = "hello", + createdAt = 1700000000L, + ) + val decoded = MarmotAppEvent.decode(event.toJson()) + assertEquals(event.id, decoded.id) + assertEquals(event.content, decoded.content) + assertEquals(event.toJson(), decoded.toJson()) + } + + /** + * A signed inner event would be republishable as a public statement by its + * author, which is exactly why the signature is left out — so a payload + * carrying one is refused, not merely ignored. + */ + @Test + fun rejectsAPayloadCarryingASignature() { + val event = MarmotAppEvent.build(alice, 9, "hi", 1700000000L) + val withSig = event.toJson().dropLast(1) + ",\"sig\":\"" + "0".repeat(128) + "\"}" + val failure = assertFailsWith { MarmotAppEvent.decode(withSig) } + assertTrue(failure.message!!.contains("signature")) + } + + /** Two implementations that disagree about what to ignore disagree about the id. */ + @Test + fun rejectsAnUnknownTopLevelMember() { + val event = MarmotAppEvent.build(alice, 9, "hi", 1700000000L) + val extra = event.toJson().dropLast(1) + ",\"nonce\":\"x\"}" + assertFailsWith { MarmotAppEvent.decode(extra) } + } + + /** + * "Last one wins" and "first one wins" are both defensible, which is the + * problem: identical bytes would yield different events, and so different + * ids, on two clients. + */ + @Test + fun rejectsDuplicateKeys() { + val event = MarmotAppEvent.build(alice, 9, "hi", 1700000000L) + val dup = event.toJson().dropLast(1) + ",\"content\":\"something else\"}" + val failure = assertFailsWith { MarmotAppEvent.decode(dup) } + assertTrue(failure.message!!.contains("duplicate")) + } + + /** A repeated key inside a nested VALUE is not a top-level duplicate. */ + @Test + fun doesNotConfuseANestedKeyForATopLevelOne() { + val nested = "{\"a\":1,\"a\":2}" + val event = MarmotAppEvent.build(alice, 1210, nested, 1700000000L) + assertEquals(event.id, MarmotAppEvent.decode(event.toJson()).id) + } + + @Test + fun rejectsAMismatchedId() { + val event = MarmotAppEvent.build(alice, 9, "hi", 1700000000L) + val tampered = event.toJson().replace("\"content\":\"hi\"", "\"content\":\"bye\"") + val failure = assertFailsWith { MarmotAppEvent.decode(tampered) } + assertTrue(failure.message!!.contains("id does not match")) + } + + @Test + fun rejectsAMissingMember() { + val incomplete = + "{\"id\":\"x\",\"pubkey\":\"" + alice + "\",\"created_at\":1,\"kind\":9,\"tags\":[]}" + assertFailsWith { MarmotAppEvent.decode(incomplete) } + } + + /** Escaping one more character than a peer does changes the hash. */ + @Test + fun escapesExactlyTheNip01Set() { + val awkward = "quote \"q\" backslash \\\\ newline \\n tab \\t" + val event = MarmotAppEvent.build(alice, 9, awkward, 1700000000L) + assertTrue(event.hasValidId(), "our serialization must agree with EventHasher's") + assertEquals(awkward, MarmotAppEvent.decode(event.toJson()).content) + } + + // --- kind 1009 ------------------------------------------------------- + + @Test + fun anEditNamesExactlyOneTarget() { + val edit = MarmotMessageEdit("a".repeat(64), "fixed", 1700000000L, alice) + val parsed = MarmotMessageEdit.fromAppEvent(edit.toAppEvent())!! + assertEquals("a".repeat(64), parsed.targetId) + assertEquals("fixed", parsed.replacement) + + // An edit naming two targets leaves each client to pick one, and they + // would not all pick the same. + val twoTargets = + MarmotAppEvent.build( + alice, + MarmotAppEvent.KIND_EDIT, + "fixed", + 1700000000L, + arrayOf(arrayOf("e", "a".repeat(64)), arrayOf("e", "b".repeat(64))), + ) + assertNull(MarmotMessageEdit.fromAppEvent(twoTargets)) + } + + /** Authorship is by ACCOUNT, so another device of the same account may edit. */ + @Test + fun onlyTheOriginalAuthorsAccountMayEdit() { + val bob = "b".repeat(64) + val mine = MarmotMessageEdit("a".repeat(64), "fixed", 1700000000L, alice) + assertTrue(MarmotMessageEdit.isAuthorized(mine, alice)) + + val theirs = MarmotMessageEdit("a".repeat(64), "vandalised", 1700000001L, bob) + assertFalse(MarmotMessageEdit.isAuthorized(theirs, alice)) + } + + /** + * Two devices of one account can stamp the same second; without a + * deterministic tie-break two readers would render different text for the + * same message forever. + */ + @Test + fun theLatestEditWinsAndTiesBreakDeterministically() { + val target = "a".repeat(64) + val older = MarmotMessageEdit(target, "first", 1700000000L, alice) + val newer = MarmotMessageEdit(target, "second", 1700000001L, alice) + assertEquals("second", MarmotMessageEdit.selectOverlay(listOf(newer, older))!!.replacement) + assertEquals("second", MarmotMessageEdit.selectOverlay(listOf(older, newer))!!.replacement) + + val tieA = MarmotMessageEdit(target, "aaa", 1700000005L, alice) + val tieB = MarmotMessageEdit(target, "bbb", 1700000005L, alice) + assertEquals( + MarmotMessageEdit.selectOverlay(listOf(tieA, tieB))!!.replacement, + MarmotMessageEdit.selectOverlay(listOf(tieB, tieA))!!.replacement, + ) + } + + // --- kind 1210 ------------------------------------------------------- + + @Test + fun aSystemRowRoundTripsItsStructuredFields() { + val row = + MarmotSystemEvent( + systemType = MarmotSystemType.MEMBER_ADDED, + actor = alice, + subject = "b".repeat(64), + ) + val parsed = MarmotSystemEvent.fromAppEvent(row.toAppEvent(alice, 1700000000L))!! + assertEquals(MarmotSystemType.MEMBER_ADDED, parsed.systemType) + assertEquals(alice, parsed.actor) + assertEquals("b".repeat(64), parsed.subject) + assertNull(parsed.name) + } + + @Test + fun aRenameCarriesTheNewName() { + val row = MarmotSystemEvent(MarmotSystemType.GROUP_RENAMED, actor = alice, name = "Book Club") + val parsed = MarmotSystemEvent.fromAppEvent(row.toAppEvent(alice, 1700000000L))!! + assertEquals("Book Club", parsed.name) + } + + /** + * The registry grows. Protocol processing MUST NOT reject an otherwise-valid + * app payload just because its semantics are unfamiliar — the payload still + * decodes; only the row interpretation is declined. + */ + @Test + fun anUnknownSystemTypeIsDeclinedNotRejected() { + val content = "{\"v\":1,\"system_type\":\"something_new\",\"text\":\"?\",\"data\":{}}" + val event = MarmotAppEvent.build(alice, MarmotAppEvent.KIND_SYSTEM, content, 1700000000L) + assertEquals(event.id, MarmotAppEvent.decode(event.toJson()).id) + assertNull(MarmotSystemEvent.fromAppEvent(event)) + } +} From 1ff2bcc198c679d9ce53076d0649590581ddaf7d Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 20:41:53 +0000 Subject: [PATCH 15/79] feat(marmot): add encrypted-media v2 and the kind-451 push owner proof MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Two Stage 7 surfaces, both verified against fixtures the spec publishes rather than against my own reading of it. **encrypted-media v2 (component 0x800b).** Supersedes the frozen v1 policy at 0x8008, which must never be reinterpreted as v2. The unusual rule here is that neither list is sorted: `default_blob_endpoints` order IS the upload/fetch fallback priority, so sorting it — as nostr-routing and admin-policy both do — would silently change which server a group uploads to. Two policies differing only in order are different canonical values, and the decoder preserves what the producer wrote. Its field checks look excessive until you see why they exist. `plaintext_sha256`, `m` and `filename` all feed both the key derivation and the AEAD AAD, joined by single 0x00 bytes with no length prefixes. That is unambiguous only because each field excludes 0x00 — fixed-width hash, ASCII-token media type, filename profile forbidding U+0000. It is also why a duplicate single-occurrence `imeta` field is rejected rather than resolved: a first-wins decoder and a last-wins decoder would derive different keys from the same authenticated tag, so one sender could hand two conformant clients tags that decrypt to different content. **Push owner proof (kind 451).** A BIP-340 signature over the id of an exact, never-published Nostr event. The event id is a ready-made canonical digest over the tuple that needs binding, and binding it is the whole point: because the id covers group_id, server_pubkey, relay_hint, the encrypted token and owner_ts, a member who merely RELAYS someone's record cannot move it to another group, repoint it at a different notification server, swap the token, or restamp it. A record's authority comes from owner_sig and current membership, never from who carried it. A current-profile group accepts only kind 451; a legacy group also accepts the superseded kind-450 form so upgraded and un-upgraded members can share a group. That split is a security boundary, not a courtesy — in a group where every leaf already carries a 0x8009 identity proof, accepting the weaker form would let anyone able to produce one bypass the stronger binding. Both fixtures reproduce exactly: the spec's published removal event id and its owner_sig verify under our tag construction, which is what proves tag order, arity and value formatting are right rather than merely self-consistent. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../appComponents/EncryptedMediaPolicyV2.kt | 230 +++++++++++++ .../marmot/appComponents/EncryptedMediaV2.kt | 324 ++++++++++++++++++ .../mip05PushNotifications/PushOwnerProof.kt | 276 +++++++++++++++ .../appComponents/EncryptedMediaV2Test.kt | 305 +++++++++++++++++ .../PushOwnerProofTest.kt | 207 +++++++++++ 5 files changed, 1342 insertions(+) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaPolicyV2.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProof.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Test.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProofTest.kt diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaPolicyV2.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaPolicyV2.kt new file mode 100644 index 0000000000..c0f376d067 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaPolicyV2.kt @@ -0,0 +1,230 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter + +/** One blob-store endpoint and the locator kind it serves. */ +data class BlobStoreEndpointV2( + val locatorKind: String, + /** Normalized `http`/`https` base URL, 1..2048 bytes. */ + val baseUrl: String, +) { + /** + * `base_url` with trailing slashes removed — the `server_root` the fetch + * and upload URL rules are written against. + */ + val serverRoot: String get() = baseUrl.trimEnd('/') + + /** Blossom BUD-01 fetch URL for a ciphertext hash. No extension, query or fragment. */ + fun blossomFetchUrl(ciphertextSha256Hex: String) = "$serverRoot/$ciphertextSha256Hex" + + /** Blossom BUD-02 upload URL. */ + fun blossomUploadUrl() = "$serverRoot/upload" +} + +/** + * `marmot.group.encrypted-media.v2`, component `0x800b` — the group's media + * policy (`app-components/group-encrypted-media-v2.md`). + * + * Supersedes the frozen v1 policy at `0x8008`, which MUST NOT be reinterpreted + * as v2; a client may keep rendering legacy v1 references, but a + * current-profile sender creates only v2 ones. + * + * ## Order is part of the value + * + * Unlike `relays` in nostr-routing or `admins` in admin-policy, neither list + * here is sorted. `default_blob_endpoints` order IS the upload/fetch fallback + * priority, so sorting it would silently change which server a group uploads + * to. Two policies differing only in order are different canonical values, and + * a decoder preserves what the producer wrote. + */ +data class EncryptedMediaPolicyV2( + /** Ordered, unique, 1..16. The initial kind is `blossom-v1`. */ + val allowedLocatorKinds: List, + /** Ordered by fallback priority, unique, 1..16. */ + val defaultBlobEndpoints: List, + /** Fixed constant. Not version negotiation — another format needs another component id. */ + val mediaFormat: String = MEDIA_FORMAT, +) { + init { + require(mediaFormat == MEDIA_FORMAT) { + "media_format must be exactly '$MEDIA_FORMAT', was '$mediaFormat'" + } + require(allowedLocatorKinds.isNotEmpty()) { "allowed_locator_kinds must not be empty" } + require(allowedLocatorKinds.size <= MAX_ENTRIES) { + "allowed_locator_kinds exceeds $MAX_ENTRIES entries" + } + allowedLocatorKinds.forEach { requireValidLocatorKind(it) } + require(allowedLocatorKinds.toSet().size == allowedLocatorKinds.size) { + "allowed_locator_kinds contains a duplicate" + } + + require(defaultBlobEndpoints.isNotEmpty()) { "default_blob_endpoints must not be empty" } + require(defaultBlobEndpoints.size <= MAX_ENTRIES) { + "default_blob_endpoints exceeds $MAX_ENTRIES entries" + } + require(defaultBlobEndpoints.toSet().size == defaultBlobEndpoints.size) { + "default_blob_endpoints contains a duplicate" + } + defaultBlobEndpoints.forEach { endpoint -> + requireValidLocatorKind(endpoint.locatorKind) + require(endpoint.locatorKind in allowedLocatorKinds) { + "endpoint locator kind '${endpoint.locatorKind}' is not in allowed_locator_kinds" + } + requireNormalizedBaseUrl(endpoint.baseUrl) + } + } + + /** Endpoints serving [locatorKind], in fallback priority order. */ + fun endpointsFor(locatorKind: String) = defaultBlobEndpoints.filter { it.locatorKind == locatorKind } + + fun encode(): ByteArray { + val writer = TlsWriter() + writer.putOpaqueVarInt(mediaFormat.encodeToByteArray()) + + val kinds = TlsWriter() + allowedLocatorKinds.forEach { kinds.putOpaqueVarInt(it.encodeToByteArray()) } + writer.putOpaqueVarInt(kinds.toByteArray()) + + val endpoints = TlsWriter() + defaultBlobEndpoints.forEach { + endpoints.putOpaqueVarInt(it.locatorKind.encodeToByteArray()) + endpoints.putOpaqueVarInt(it.baseUrl.encodeToByteArray()) + } + writer.putOpaqueVarInt(endpoints.toByteArray()) + return writer.toByteArray() + } + + companion object { + const val COMPONENT_ID = 0x800b + const val MEDIA_FORMAT = "encrypted-media-v2" + const val INITIAL_LOCATOR_KIND = "blossom-v1" + const val MAX_ENTRIES = 16 + const val MAX_BASE_URL_BYTES = 2048 + const val MAX_LOCATOR_KIND_BYTES = 64 + + /** The spec's reference policy — the default a new group starts from. */ + val REFERENCE = + EncryptedMediaPolicyV2( + allowedLocatorKinds = listOf(INITIAL_LOCATOR_KIND), + defaultBlobEndpoints = + listOf(BlobStoreEndpointV2(INITIAL_LOCATOR_KIND, "https://blossom.primal.net/")), + ) + + /** + * Decode, rejecting anything non-canonical. + * + * These bytes sit in signed group state, so a lenient decoder is worse + * than a strict one: if two peers each "repair" the same bytes + * differently they hold different canonical values and disagree about + * what the group's policy is. Nothing is trimmed, case-folded, + * normalized or deduplicated on the way in — a duplicate or a + * non-normalized URL is refused rather than fixed, and trailing bytes + * are refused rather than ignored. + */ + fun decode(bytes: ByteArray): EncryptedMediaPolicyV2 { + val reader = TlsReader(bytes) + val format = reader.readOpaqueVarInt().decodeToString() + + val kindsBlock = reader.readOpaqueVarInt() + val kinds = mutableListOf() + val kindReader = TlsReader(kindsBlock) + while (kindReader.remaining > 0) { + kinds.add(kindReader.readOpaqueVarInt().decodeToString()) + } + + val endpointBlock = reader.readOpaqueVarInt() + val endpoints = mutableListOf() + val endpointReader = TlsReader(endpointBlock) + while (endpointReader.remaining > 0) { + val kind = endpointReader.readOpaqueVarInt().decodeToString() + val url = endpointReader.readOpaqueVarInt().decodeToString() + endpoints.add(BlobStoreEndpointV2(kind, url)) + } + + require(reader.remaining == 0) { + "encrypted-media policy has ${reader.remaining} trailing byte(s)" + } + + val decoded = EncryptedMediaPolicyV2(kinds, endpoints, format) + require(decoded.encode().contentEquals(bytes)) { + "encrypted-media policy bytes are not canonical" + } + return decoded + } + + fun decodeOrNull(bytes: ByteArray): EncryptedMediaPolicyV2? = + try { + decode(bytes) + } catch (_: Exception) { + null + } + + /** Lowercase ASCII letters, digits and `-`, 1..64 bytes. */ + fun requireValidLocatorKind(kind: String) { + val bytes = kind.encodeToByteArray() + require(bytes.isNotEmpty() && bytes.size <= MAX_LOCATOR_KIND_BYTES) { + "locator kind must be 1..$MAX_LOCATOR_KIND_BYTES bytes, was ${bytes.size}" + } + require(kind.all { it in 'a'..'z' || it in '0'..'9' || it == '-' }) { + "locator kind '$kind' has a character outside [a-z0-9-]" + } + } + + /** + * A base URL is normalized when it is byte-equal to its own + * parse-and-serialize output. + * + * The checks below are the structural subset that decides validity for + * every member identically: scheme, no userinfo, a present host, and no + * query or fragment. Reachability and whether this client is willing to + * contact the host are LOCAL policy and must not influence whether the + * component bytes — or the Commit carrying them — are valid; otherwise + * one member's blocklist would fork the group. + */ + fun requireNormalizedBaseUrl(url: String) { + val bytes = url.encodeToByteArray() + require(bytes.isNotEmpty() && bytes.size <= MAX_BASE_URL_BYTES) { + "base_url must be 1..$MAX_BASE_URL_BYTES bytes, was ${bytes.size}" + } + val scheme = + when { + url.startsWith("https://") -> "https://" + url.startsWith("http://") -> "http://" + else -> throw IllegalArgumentException("base_url must be http or https: '$url'") + } + require('#' !in url) { "base_url must not carry a fragment: '$url'" } + require('?' !in url) { "base_url must not carry a query: '$url'" } + + val afterScheme = url.substring(scheme.length) + val authority = afterScheme.substringBefore('/') + require(authority.isNotEmpty()) { "base_url has no host: '$url'" } + require('@' !in authority) { "base_url must not carry userinfo: '$url'" } + require(authority == authority.lowercase()) { + "base_url host is not normalized (lowercase): '$url'" + } + require("//" !in afterScheme) { "base_url path is not normalized: '$url'" } + require(".." !in afterScheme) { "base_url path is not normalized: '$url'" } + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2.kt new file mode 100644 index 0000000000..faed1c71a4 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2.kt @@ -0,0 +1,324 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.mls.crypto.MlsCryptoProvider +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip44Encryption.crypto.ChaCha20Poly1305 +import com.vitorpamplona.quartz.utils.RandomInstance +import com.vitorpamplona.quartz.utils.sha256.sha256 + +/** One `locator ` field of an `encrypted-media-v2` reference. */ +data class MediaLocatorV2( + val kind: String, + val value: String, +) + +/** + * One `encrypted-media-v2` attachment reference — the authenticated fields of + * an `imeta` tag (`features/encrypted-media.md`). + * + * The source epoch is deliberately NOT a field: it is the MLS epoch of the + * application message that carried the tag. Putting it in the tag would let a + * sender name which epoch's media secret a receiver should use, and the + * receiver already knows the real one. + */ +class EncryptedMediaReferenceV2( + val locators: List, + val ciphertextSha256: ByteArray, + val plaintextSha256: ByteArray, + val nonce: ByteArray, + /** Canonical media type, byte-for-byte as it must appear in `m`. */ + val mediaType: String, + val filename: String, + val dim: String? = null, + val thumbhash: String? = null, +) { + init { + require(locators.isNotEmpty()) { "an encrypted-media reference needs at least one locator" } + locators.forEach { locator -> + require(locator.kind.isNotEmpty()) { "locator kind must not be empty" } + require(locator.value.isNotEmpty()) { "locator value must not be empty" } + if (locator.kind == EncryptedMediaPolicyV2.INITIAL_LOCATOR_KIND) { + require(locator.value.startsWith("http://") || locator.value.startsWith("https://")) { + "a blossom-v1 locator must be an http or https URL" + } + } + } + require(ciphertextSha256.size == 32) { "ciphertext_sha256 must be 32 bytes" } + require(plaintextSha256.size == 32) { "plaintext_sha256 must be 32 bytes" } + require(nonce.size == EncryptedMediaV2.NONCE_LENGTH) { + "nonce must be ${EncryptedMediaV2.NONCE_LENGTH} bytes" + } + require(MarmotMediaType.canonicalize(mediaType) == mediaType) { + "m must already be byte-for-byte canonical, was '$mediaType'" + } + EncryptedMediaV2.requireValidFilename(filename) + } + + /** The `imeta` tag, with `v` first and the locators in the producer's order. */ + fun toImetaTag(): Array { + val fields = mutableListOf("imeta", "v ${EncryptedMediaPolicyV2.MEDIA_FORMAT}") + locators.forEach { fields.add("locator ${it.kind} ${it.value}") } + fields.add("ciphertext_sha256 ${ciphertextSha256.toHexKey()}") + fields.add("plaintext_sha256 ${plaintextSha256.toHexKey()}") + fields.add("nonce ${nonce.toHexKey()}") + fields.add("m $mediaType") + fields.add("filename $filename") + dim?.let { fields.add("dim $it") } + thumbhash?.let { fields.add("thumbhash $it") } + return fields.toTypedArray() + } +} + +/** + * `encrypted-media-v2` key derivation and content encryption + * (`features/encrypted-media.md`). + * + * ## Why the field checks are so unforgiving + * + * `plaintext_sha256`, `m` and `filename` all feed both the key derivation and + * the AEAD associated data, joined by single `0x00` bytes with no length + * prefixes. That is only unambiguous because each field is constrained to + * exclude `0x00`: the hash is fixed-width, the media-type profile allows only + * ASCII token bytes, and the filename profile forbids `U+0000` outright. Relax + * any of those and two different field triples serialize to the same info + * bytes. + * + * It is also why a duplicate single-occurrence field is REJECTED rather than + * resolved. A first-wins decoder and a last-wins decoder would derive different + * keys from the same authenticated tag, so one sender could hand two conformant + * clients tags that decrypt to different content. + */ +object EncryptedMediaV2 { + const val VERSION = "encrypted-media-v2" + const val NONCE_LENGTH = 12 + const val KEY_LENGTH = 32 + const val EXPORTER_KEY_LENGTH = 32 + const val MAX_FILENAME_BYTES = 255 + + private val VERSION_BYTES = VERSION.encodeToByteArray() + private val KEY_SUFFIX = "key".encodeToByteArray() + private val NUL = byteArrayOf(0x00) + + /** `filename` is display metadata: valid UTF-8, 1..255 bytes, no `U+0000`. */ + fun requireValidFilename(filename: String) { + val bytes = filename.encodeToByteArray() + require(bytes.isNotEmpty() && bytes.size <= MAX_FILENAME_BYTES) { + "filename must be 1..$MAX_FILENAME_BYTES bytes, was ${bytes.size}" + } + require(!filename.contains('\u0000')) { "filename must not contain U+0000" } + } + + /** + * `file_key = HKDF-Expand(media_secret, info, 32)`. + * + * `media_secret` is used directly as the HKDF PRK — Expand only, no + * Extract. That is fixed regardless of the group's MLS ciphersuite; only + * the exporter itself is computed with the ciphersuite's own hash. + */ + fun deriveFileKey( + mediaSecret: ByteArray, + plaintextSha256: ByteArray, + mediaType: String, + filename: String, + ): ByteArray { + require(mediaSecret.size == EXPORTER_KEY_LENGTH) { + "media secret must be $EXPORTER_KEY_LENGTH bytes" + } + return MlsCryptoProvider.hkdfExpand( + mediaSecret, + buildInfo(plaintextSha256, mediaType, filename, KEY_SUFFIX), + KEY_LENGTH, + ) + } + + class EncryptionResult( + val ciphertext: ByteArray, + val nonce: ByteArray, + val plaintextSha256: ByteArray, + val ciphertextSha256: ByteArray, + ) + + /** + * Encrypt an attachment. + * + * A fresh random nonce every time, including on a resend: the key is + * deterministic in (plaintext hash, media type, filename, epoch), so + * re-sending the same file in the same epoch reuses the key, and reusing a + * nonce with it breaks ChaCha20-Poly1305 outright. + */ + fun encrypt( + plaintext: ByteArray, + mediaSecret: ByteArray, + mediaType: String, + filename: String, + ): EncryptionResult { + require(MarmotMediaType.canonicalize(mediaType) == mediaType) { + "media type must already be canonical, was '$mediaType'" + } + requireValidFilename(filename) + + val plaintextSha256 = sha256(plaintext) + val fileKey = deriveFileKey(mediaSecret, plaintextSha256, mediaType, filename) + val nonce = RandomInstance.bytes(NONCE_LENGTH) + val aad = buildAad(plaintextSha256, mediaType, filename) + val ciphertext = ChaCha20Poly1305.encrypt(plaintext, aad, nonce, fileKey) + return EncryptionResult( + ciphertext = ciphertext, + nonce = nonce, + plaintextSha256 = plaintextSha256, + ciphertextSha256 = sha256(ciphertext), + ) + } + + /** + * Decrypt an attachment and verify it is the file the reference names. + * + * The plaintext-hash check is not redundant with the AEAD tag. The tag + * proves the ciphertext was produced under this key and AAD; the hash check + * proves the AAD described THIS file rather than another one the same + * sender could also authenticate. + */ + fun decrypt( + ciphertext: ByteArray, + mediaSecret: ByteArray, + nonce: ByteArray, + plaintextSha256: ByteArray, + mediaType: String, + filename: String, + ): ByteArray { + require(nonce.size == NONCE_LENGTH) { "nonce must be $NONCE_LENGTH bytes" } + require(plaintextSha256.size == 32) { "plaintext_sha256 must be 32 bytes" } + require(MarmotMediaType.canonicalize(mediaType) == mediaType) { + "media type must already be canonical, was '$mediaType'" + } + requireValidFilename(filename) + + val fileKey = deriveFileKey(mediaSecret, plaintextSha256, mediaType, filename) + val aad = buildAad(plaintextSha256, mediaType, filename) + val plaintext = ChaCha20Poly1305.decrypt(ciphertext, aad, nonce, fileKey) + check(sha256(plaintext).contentEquals(plaintextSha256)) { + "decrypted attachment does not hash to plaintext_sha256" + } + return plaintext + } + + /** + * Parse an `imeta` tag, or throw naming the reason. + * + * @throws IllegalArgumentException for every rejection the spec lists. + */ + fun parseImetaTag(tag: Array): EncryptedMediaReferenceV2 { + require(tag.isNotEmpty() && tag[0] == "imeta") { "not an imeta tag" } + + val locators = mutableListOf() + val single = mutableMapOf() + for (i in 1 until tag.size) { + val field = tag[i] + val name = field.substringBefore(' ') + val rest = field.substringAfter(' ', "") + if (name == "locator") { + val kind = rest.substringBefore(' ') + val value = rest.substringAfter(' ', "") + locators.add(MediaLocatorV2(kind, value)) + } else { + // Exactly `locator` repeats; everything else occurs at most + // once, and a duplicate is refused rather than resolved. + require(single.put(name, rest) == null) { + "imeta field '$name' appears more than once" + } + } + } + + require(!single.containsKey("blurhash")) { "blurhash is invalid in $VERSION" } + require(single["v"] == VERSION) { "imeta version is not $VERSION" } + + val storedMediaType = requireNotNull(single["m"]) { "imeta is missing m" } + require(MarmotMediaType.canonicalize(storedMediaType) == storedMediaType) { + "imeta m is not byte-for-byte canonical: '$storedMediaType'" + } + + return EncryptedMediaReferenceV2( + locators = locators, + ciphertextSha256 = requireHash(single["ciphertext_sha256"], "ciphertext_sha256"), + plaintextSha256 = requireHash(single["plaintext_sha256"], "plaintext_sha256"), + nonce = requireNonce(single["nonce"]), + mediaType = storedMediaType, + filename = requireNotNull(single["filename"]) { "imeta is missing filename" }, + dim = single["dim"], + thumbhash = single["thumbhash"], + ) + } + + /** + * [parseImetaTag], returning null instead of throwing. + * + * Rejection is attachment-local: the caller drops this attachment and keeps + * the caption and every other valid attachment on the same message. + */ + fun parseImetaTagOrNull(tag: Array): EncryptedMediaReferenceV2? = + try { + parseImetaTag(tag) + } catch (_: Exception) { + null + } + + private fun requireHash( + value: String?, + field: String, + ): ByteArray { + val hex = requireNotNull(value) { "imeta is missing $field" } + require(hex.length == 64 && hex.all { it in '0'..'9' || it in 'a'..'f' }) { + "$field must be 64 lowercase hex characters" + } + return hexToBytes(hex) + } + + private fun requireNonce(value: String?): ByteArray { + val hex = requireNotNull(value) { "imeta is missing nonce" } + require(hex.length == NONCE_LENGTH * 2 && hex.all { it in '0'..'9' || it in 'a'..'f' }) { + "nonce must be ${NONCE_LENGTH * 2} lowercase hex characters" + } + return hexToBytes(hex) + } + + private fun hexToBytes(hex: String) = + ByteArray(hex.length / 2) { i -> + ((hexDigit(hex[i * 2]) shl 4) or hexDigit(hex[i * 2 + 1])).toByte() + } + + private fun hexDigit(c: Char) = if (c in '0'..'9') c - '0' else c - 'a' + 10 + + private fun buildInfo( + plaintextSha256: ByteArray, + mediaType: String, + filename: String, + suffix: ByteArray, + ) = buildAad(plaintextSha256, mediaType, filename) + NUL + suffix + + private fun buildAad( + plaintextSha256: ByteArray, + mediaType: String, + filename: String, + ) = VERSION_BYTES + NUL + plaintextSha256 + NUL + mediaType.encodeToByteArray() + + NUL + filename.encodeToByteArray() +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProof.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProof.kt new file mode 100644 index 0000000000..8a6e9109aa --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProof.kt @@ -0,0 +1,276 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip05PushNotifications + +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.TagArray +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.EventHasher +import com.vitorpamplona.quartz.nip01Core.crypto.Nip01Crypto +import com.vitorpamplona.quartz.nip01Core.signers.EventTemplate +import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner + +/** The two record shapes an owner proof can cover. */ +enum class PushRecordKind( + val domainTag: String, +) { + /** A token record (gossip kinds 447 / 448). */ + TOKEN("marmot-push-token-record-v1"), + + /** A token removal (gossip kind 449). */ + REMOVAL("marmot-push-token-removal-v1"), +} + +/** + * The push token owner proof — a BIP-340 signature over the id of an exact, + * UNPUBLISHED kind `451` Nostr event (`features/push-notifications.md`, + * "Owner authentication"). + * + * ## Why an event that is never published + * + * The proof needs to bind a lot of context at once — which group, which + * notification server, which relay hint, which token, and when — and a Nostr + * event id is a ready-made canonical digest over exactly that kind of tuple. + * Only the 64-byte signature travels, inside the gossip record; the event is a + * signing template and MUST NOT be sent to a relay. + * + * ## What the binding buys + * + * Because the id covers `group_id`, `server_pubkey`, `relay_hint`, the + * encrypted token and `owner_ts`, a member who merely RELAYS someone's record + * cannot move it to another group, repoint it at a different notification + * server or relay, swap the token, or restamp it. That matters because a + * record's authority comes from `owner_sig` and current membership — never from + * who happened to carry it. + * + * Note this is deliberately NOT the 104-byte [MarmotAuthorizationProof] + * envelope: the account identity proof carries its own pubkey and timestamp, + * while here both are already pinned by the record being signed over. + */ +object PushOwnerProof { + const val KIND = 451 + + /** + * The superseded event-shaped proof kind. + * + * Accepted only when verifying in a LEGACY group, and never produced. Kind + * `450` is the account identity proof's kind; push borrowed it before `451` + * was allocated, and accepting it here does not reserve it for push. + */ + const val LEGACY_KIND = 450 + + /** + * Build the tag list, in the exact order the spec fixes. + * + * Order and arity are not cosmetic — they are inside the id preimage, so a + * reordered or duplicated tag yields a different id and the signature + * simply does not verify. That is the intended failure mode. + */ + fun tags( + record: PushRecordKind, + groupIdHex: HexKey, + memberIdHex: HexKey, + leafIndex: Int, + platform: String, + serverPubKeyHex: HexKey, + tokenFingerprint: String, + ownerTsMillis: Long, + relayHint: String, + ): TagArray { + val base = + mutableListOf( + arrayOf("d", record.domainTag), + arrayOf("group_id", groupIdHex), + arrayOf("member_id", memberIdHex), + arrayOf("leaf_index", leafIndex.toString()), + arrayOf("platform", platform), + arrayOf("server_pubkey", serverPubKeyHex), + arrayOf("token_fingerprint", tokenFingerprint), + arrayOf("owner_ts", ownerTsMillis.toString()), + // A removal always encodes an empty hint; a token record carries + // the member's exact string, with no trimming or normalization — + // altering it would change the id the owner signed. + arrayOf("relay_hint", if (record == PushRecordKind.REMOVAL) "" else relayHint), + ) + if (record == PushRecordKind.TOKEN) { + base.add(arrayOf("encrypted_token_encoding", "base64")) + } + return base.toTypedArray() + } + + /** `created_at` is fixed at 0: the record's own `owner_ts` is the timestamp that counts. */ + const val CREATED_AT = 0L + + /** The id the owner signs. */ + fun eventId( + memberIdHex: HexKey, + tags: TagArray, + content: String, + ): ByteArray = EventHasher.hashIdBytes(memberIdHex, CREATED_AT, KIND, tags, content) + + /** The unsigned event an external signer is asked to sign. Never published. */ + fun signingTemplate( + tags: TagArray, + content: String, + ): EventTemplate = + EventTemplate( + createdAt = CREATED_AT, + kind = KIND, + tags = tags, + content = content, + ) + + /** + * Ask [signer] for the owner proof over a record. + * + * The returned event is validated field by field before its signature is + * copied out. An external signer — a bunker, a hardware device — is free to + * return something other than what it was asked to sign, and a substituted + * group id or server pubkey would otherwise become a proof that silently + * authorizes the wrong destination. + * + * @return the 64-byte `owner_sig`. + */ + suspend fun create( + signer: NostrSigner, + record: PushRecordKind, + groupIdHex: HexKey, + leafIndex: Int, + platform: String, + serverPubKeyHex: HexKey, + tokenFingerprint: String, + ownerTsMillis: Long, + relayHint: String = "", + encryptedTokenBase64: String = "", + ): ByteArray { + val memberIdHex = signer.pubKey + val builtTags = + tags( + record, + groupIdHex, + memberIdHex, + leafIndex, + platform, + serverPubKeyHex, + tokenFingerprint, + ownerTsMillis, + relayHint, + ) + val content = if (record == PushRecordKind.REMOVAL) "" else encryptedTokenBase64 + val signed: Event = signer.sign(signingTemplate(builtTags, content)) + + require(signed.pubKey == memberIdHex) { + "signer returned a push owner proof authored by a different account" + } + require(signed.createdAt == CREATED_AT && signed.kind == KIND && signed.content == content) { + "signer returned a different push owner proof event than requested" + } + require(tagsEqual(signed.tags, builtTags)) { + "signer altered the push owner proof tags" + } + val signature = signed.sig.hexToByteArray() + require(verify(signature, memberIdHex, builtTags, content, KIND)) { + "signer returned a push owner proof whose signature does not verify" + } + return signature + } + + /** + * Verify an `owner_sig` under [memberIdHex]. + * + * [kind] selects the proof form. A CURRENT-profile group accepts only + * [KIND]; a legacy group also accepts [LEGACY_KIND], so an upgraded member + * and a not-yet-upgraded one can stay in the same group. Producers create + * only [KIND]. + */ + fun verify( + ownerSig: ByteArray, + memberIdHex: HexKey, + tags: TagArray, + content: String, + kind: Int = KIND, + ): Boolean { + if (ownerSig.size != 64) return false + return try { + val id = EventHasher.hashIdBytes(memberIdHex, CREATED_AT, kind, tags, content) + Nip01Crypto.verify(ownerSig, id, memberIdHex.hexToByteArray()) + } catch (_: Exception) { + false + } + } + + /** + * Verify a record's proof the way a recipient must. + * + * [currentProfileGroup] decides which forms are acceptable, and the + * distinction is a security one rather than a courtesy: in a group where + * every leaf carries a `0x8009` identity proof, accepting a weaker legacy + * form would let anyone who can produce one bypass the stronger binding the + * group already guarantees. + */ + fun verifyRecord( + ownerSig: ByteArray, + record: PushRecordKind, + groupIdHex: HexKey, + memberIdHex: HexKey, + leafIndex: Int, + platform: String, + serverPubKeyHex: HexKey, + tokenFingerprint: String, + ownerTsMillis: Long, + relayHint: String = "", + encryptedTokenBase64: String = "", + currentProfileGroup: Boolean, + ): Boolean { + val builtTags = + tags( + record, + groupIdHex, + memberIdHex, + leafIndex, + platform, + serverPubKeyHex, + tokenFingerprint, + ownerTsMillis, + relayHint, + ) + val content = if (record == PushRecordKind.REMOVAL) "" else encryptedTokenBase64 + if (verify(ownerSig, memberIdHex, builtTags, content, KIND)) return true + if (currentProfileGroup) return false + return verify(ownerSig, memberIdHex, builtTags, content, LEGACY_KIND) + } + + /** Hex form, for embedding in a gossip record. */ + fun toHex(ownerSig: ByteArray): HexKey = ownerSig.toHexKey() + + private fun tagsEqual( + a: TagArray, + b: TagArray, + ): Boolean { + if (a.size != b.size) return false + for (i in a.indices) { + if (!a[i].contentEquals(b[i])) return false + } + return true + } +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Test.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Test.kt new file mode 100644 index 0000000000..2cf77ffe71 --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Test.kt @@ -0,0 +1,305 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertFalse +import kotlin.test.assertNotEquals +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * `app-components/group-encrypted-media-v2.md` and + * `features/encrypted-media.md`. + */ +class EncryptedMediaV2Test { + private val mediaSecret = ByteArray(32) { it.toByte() } + + // --- policy component 0x800b ----------------------------------------- + + @Test + fun theReferencePolicyRoundTrips() { + val decoded = EncryptedMediaPolicyV2.decode(EncryptedMediaPolicyV2.REFERENCE.encode()) + assertEquals(EncryptedMediaPolicyV2.REFERENCE, decoded) + assertEquals("encrypted-media-v2", decoded.mediaFormat) + assertEquals(listOf("blossom-v1"), decoded.allowedLocatorKinds) + assertEquals("https://blossom.primal.net/", decoded.defaultBlobEndpoints.single().baseUrl) + } + + /** + * Endpoint order IS the upload/fetch fallback priority, so — unlike relays + * or admins — it must NOT be sorted. Two policies differing only in order + * are different canonical values. + */ + @Test + fun endpointOrderIsPartOfTheValue() { + val a = + EncryptedMediaPolicyV2( + allowedLocatorKinds = listOf("blossom-v1"), + defaultBlobEndpoints = + listOf( + BlobStoreEndpointV2("blossom-v1", "https://a.example.com/"), + BlobStoreEndpointV2("blossom-v1", "https://b.example.com/"), + ), + ) + val reversed = a.copy(defaultBlobEndpoints = a.defaultBlobEndpoints.reversed()) + assertNotEquals(a, reversed) + assertFalse(a.encode().contentEquals(reversed.encode())) + assertEquals(reversed, EncryptedMediaPolicyV2.decode(reversed.encode())) + } + + /** A decoder rejects rather than repairs: these bytes sit in signed group state. */ + @Test + fun rejectsNonCanonicalAndInvalidState() { + assertFailsWith { + EncryptedMediaPolicyV2(listOf("blossom-v1"), emptyList()) + } + assertFailsWith { + EncryptedMediaPolicyV2(emptyList(), listOf(BlobStoreEndpointV2("blossom-v1", "https://a.example.com/"))) + } + // An endpoint serving a kind the policy does not allow. + assertFailsWith { + EncryptedMediaPolicyV2(listOf("blossom-v1"), listOf(BlobStoreEndpointV2("other-v1", "https://a.example.com/"))) + } + // A duplicate is refused, not deduplicated. + assertFailsWith { + EncryptedMediaPolicyV2(listOf("blossom-v1", "blossom-v1"), listOf(BlobStoreEndpointV2("blossom-v1", "https://a.example.com/"))) + } + // media_format is a constant, not negotiation. + assertFailsWith { + EncryptedMediaPolicyV2(listOf("blossom-v1"), listOf(BlobStoreEndpointV2("blossom-v1", "https://a.example.com/")), "encrypted-media-v3") + } + // Trailing bytes are refused, not ignored. + assertFailsWith { + EncryptedMediaPolicyV2.decode(EncryptedMediaPolicyV2.REFERENCE.encode() + byteArrayOf(0)) + } + } + + @Test + fun rejectsNonNormalizedBaseUrls() { + listOf( + "ftp://a.example.com/", + "https://user@a.example.com/", + "https://a.example.com/?q=1", + "https://a.example.com/#f", + "https://A.EXAMPLE.COM/", + "https://a.example.com//double/", + "https://a.example.com/../up/", + "https:///", + ).forEach { url -> + assertFailsWith("expected '$url' to be rejected") { + EncryptedMediaPolicyV2(listOf("blossom-v1"), listOf(BlobStoreEndpointV2("blossom-v1", url))) + } + } + } + + @Test + fun rejectsInvalidLocatorKinds() { + listOf("", "Blossom-v1", "blossom_v1", "blossom v1", "a".repeat(65)).forEach { kind -> + assertFailsWith("expected '$kind' to be rejected") { + EncryptedMediaPolicyV2.requireValidLocatorKind(kind) + } + } + } + + /** Blossom fetch and upload URLs are built from `server_root`, trailing slashes gone. */ + @Test + fun buildsBlossomFallbackUrls() { + val endpoint = BlobStoreEndpointV2("blossom-v1", "https://blossom.primal.net/") + val hash = "ab".repeat(32) + assertEquals("https://blossom.primal.net/$hash", endpoint.blossomFetchUrl(hash)) + assertEquals("https://blossom.primal.net/upload", endpoint.blossomUploadUrl()) + } + + // --- content crypto --------------------------------------------------- + + @Test + fun encryptsAndDecryptsAnAttachment() { + val plaintext = "a picture of a marmot".encodeToByteArray() + val result = EncryptedMediaV2.encrypt(plaintext, mediaSecret, "image/jpeg", "marmot.jpg") + + assertEquals(12, result.nonce.size) + assertContentEquals( + plaintext, + EncryptedMediaV2.decrypt( + result.ciphertext, + mediaSecret, + result.nonce, + result.plaintextSha256, + "image/jpeg", + "marmot.jpg", + ), + ) + } + + /** + * The key is deterministic in (plaintext hash, media type, filename, epoch), + * so a resend reuses it — and the nonce MUST still be fresh, or + * ChaCha20-Poly1305 breaks outright. + */ + @Test + fun aResendReusesTheKeyButNeverTheNonce() { + val plaintext = "same file".encodeToByteArray() + val first = EncryptedMediaV2.encrypt(plaintext, mediaSecret, "image/png", "a.png") + val second = EncryptedMediaV2.encrypt(plaintext, mediaSecret, "image/png", "a.png") + + assertContentEquals( + EncryptedMediaV2.deriveFileKey(mediaSecret, first.plaintextSha256, "image/png", "a.png"), + EncryptedMediaV2.deriveFileKey(mediaSecret, second.plaintextSha256, "image/png", "a.png"), + ) + assertFalse(first.nonce.contentEquals(second.nonce), "every encryption needs a fresh nonce") + } + + /** + * The media type and filename are inside both the key info and the AAD, so + * changing either makes decryption fail rather than silently succeed with a + * different attribution. + */ + @Test + fun theMediaTypeAndFilenameAreAuthenticated() { + val plaintext = "bytes".encodeToByteArray() + val result = EncryptedMediaV2.encrypt(plaintext, mediaSecret, "image/png", "a.png") + + assertFailsWith { + EncryptedMediaV2.decrypt(result.ciphertext, mediaSecret, result.nonce, result.plaintextSha256, "image/jpeg", "a.png") + } + assertFailsWith { + EncryptedMediaV2.decrypt(result.ciphertext, mediaSecret, result.nonce, result.plaintextSha256, "image/png", "b.png") + } + } + + /** A non-canonical `m` is refused rather than normalized on the way in. */ + @Test + fun refusesANonCanonicalMediaType() { + assertFailsWith { + EncryptedMediaV2.encrypt("x".encodeToByteArray(), mediaSecret, "IMAGE/JPG", "a.jpg") + } + assertEquals("image/jpeg", MarmotMediaType.canonicalize("IMAGE/JPG")) + } + + // --- imeta references ------------------------------------------------- + + private fun reference() = + EncryptedMediaReferenceV2( + locators = listOf(MediaLocatorV2("blossom-v1", "https://blossom.primal.net/" + "ab".repeat(32))), + ciphertextSha256 = ByteArray(32) { 1 }, + plaintextSha256 = ByteArray(32) { 2 }, + nonce = ByteArray(12) { 3 }, + mediaType = "image/jpeg", + filename = "marmot.jpg", + ) + + @Test + fun anImetaTagRoundTrips() { + val parsed = EncryptedMediaV2.parseImetaTag(reference().toImetaTag()) + assertEquals("image/jpeg", parsed.mediaType) + assertEquals("marmot.jpg", parsed.filename) + assertEquals(1, parsed.locators.size) + assertEquals("blossom-v1", parsed.locators[0].kind) + assertContentEquals(ByteArray(12) { 3 }, parsed.nonce) + } + + /** + * `m`, `filename` and `plaintext_sha256` feed the key derivation, so a + * first-wins decoder and a last-wins decoder would derive DIFFERENT keys + * from the same authenticated tag. The duplicate is refused instead. + */ + @Test + fun rejectsADuplicateSingleOccurrenceField() { + val doubled = reference().toImetaTag().toMutableList().apply { add("m image/png") } + val failure = + assertFailsWith { + EncryptedMediaV2.parseImetaTag(doubled.toTypedArray()) + } + assertTrue(failure.message!!.contains("more than once")) + } + + /** Exactly `locator` may repeat. */ + @Test + fun acceptsSeveralLocators() { + val tag = + reference() + .toImetaTag() + .toMutableList() + .apply { add(1, "locator blossom-v1 https://mirror.example.com/blob") } + assertEquals(2, EncryptedMediaV2.parseImetaTag(tag.toTypedArray()).locators.size) + } + + @Test + fun rejectsBlurhashAndWrongVersion() { + val withBlurhash = reference().toImetaTag().toMutableList().apply { add("blurhash abc") } + assertNull(EncryptedMediaV2.parseImetaTagOrNull(withBlurhash.toTypedArray())) + + val v1 = reference().toImetaTag().map { if (it.startsWith("v ")) "v encrypted-media-v1" else it } + assertNull(EncryptedMediaV2.parseImetaTagOrNull(v1.toTypedArray())) + } + + @Test + fun rejectsMalformedHashesAndNonces() { + val badNonce = reference().toImetaTag().map { if (it.startsWith("nonce ")) "nonce abcd" else it } + assertNull(EncryptedMediaV2.parseImetaTagOrNull(badNonce.toTypedArray())) + + val badHash = + reference().toImetaTag().map { + if (it.startsWith("ciphertext_sha256 ")) "ciphertext_sha256 notahash" else it + } + assertNull(EncryptedMediaV2.parseImetaTagOrNull(badHash.toTypedArray())) + } + + /** A locator must be usable: an empty kind or value is not a reference. */ + @Test + fun rejectsAnEmptyOrNonUrlLocator() { + assertFailsWith { + EncryptedMediaReferenceV2( + locators = listOf(MediaLocatorV2("blossom-v1", "not-a-url")), + ciphertextSha256 = ByteArray(32), + plaintextSha256 = ByteArray(32), + nonce = ByteArray(12), + mediaType = "image/jpeg", + filename = "a.jpg", + ) + } + assertFailsWith { + EncryptedMediaReferenceV2( + locators = emptyList(), + ciphertextSha256 = ByteArray(32), + plaintextSha256 = ByteArray(32), + nonce = ByteArray(12), + mediaType = "image/jpeg", + filename = "a.jpg", + ) + } + } + + @Test + fun theCiphertextHashIsTheBlobContentId() { + val result = EncryptedMediaV2.encrypt("bytes".encodeToByteArray(), mediaSecret, "image/png", "a.png") + val endpoint = BlobStoreEndpointV2("blossom-v1", "https://blossom.primal.net/") + assertEquals( + "https://blossom.primal.net/" + result.ciphertextSha256.toHexKey(), + endpoint.blossomFetchUrl(result.ciphertextSha256.toHexKey()), + ) + } +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProofTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProofTest.kt new file mode 100644 index 0000000000..532ed893a1 --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProofTest.kt @@ -0,0 +1,207 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip05PushNotifications + +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFalse +import kotlin.test.assertTrue + +/** + * `features/push-notifications.md`, "Owner authentication". + * + * The spec publishes a complete removal fixture: the canonical NIP-01 + * serialization, the resulting event id, and the `owner_sig` a known secret + * produces over it. Reproducing that id is what proves our tag order, arity and + * value formatting match — get any of them wrong and the id changes, the + * signature stops verifying, and every peer silently drops the record. + */ +class PushOwnerProofTest { + private val member = "f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9" + private val groupId = "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f" + private val serverPubKey = "2f8bde4d1a07209355b4a7250a5c5128e88b84bddc619ab7cba8d569b240efe4" + private val fingerprint = "sha256:000102030405060708090a0b" + private val ownerTs = 1700000000000L + + private fun removalTags() = + PushOwnerProof.tags( + record = PushRecordKind.REMOVAL, + groupIdHex = groupId, + memberIdHex = member, + leafIndex = 3, + platform = "apns", + serverPubKeyHex = serverPubKey, + tokenFingerprint = fingerprint, + ownerTsMillis = ownerTs, + relayHint = "", + ) + + @Test + fun matchesTheSpecPublishedRemovalEventId() { + assertEquals( + "be12f4d029d3cac4034251949d6c013ff18eae00870e199012c7a97e8960b7a2", + PushOwnerProof.eventId(member, removalTags(), "").toHexKey(), + ) + } + + @Test + fun verifiesTheSpecPublishedSignature() { + val ownerSig = + ( + "04c3588a6533399aeaebb6c596fab896186dd0af1f9724f2926d984d2876490c" + + "76e1d149127e0fa697d7f19a0807aa373e942f0eb33edc63071567f274ce3bec" + ).hexToByteArray() + assertTrue( + PushOwnerProof.verifyRecord( + ownerSig = ownerSig, + record = PushRecordKind.REMOVAL, + groupIdHex = groupId, + memberIdHex = member, + leafIndex = 3, + platform = "apns", + serverPubKeyHex = serverPubKey, + tokenFingerprint = fingerprint, + ownerTsMillis = ownerTs, + currentProfileGroup = true, + ), + ) + } + + /** + * The point of binding all that context: a member who merely RELAYS a + * record cannot move it, repoint it, or restamp it. Each of these changes + * one signed field, so the id changes and the signature stops verifying. + */ + @Test + fun aRelayingMemberCannotRepointTheRecord() { + val ownerSig = + ( + "04c3588a6533399aeaebb6c596fab896186dd0af1f9724f2926d984d2876490c" + + "76e1d149127e0fa697d7f19a0807aa373e942f0eb33edc63071567f274ce3bec" + ).hexToByteArray() + + fun verifyWith( + gid: String = groupId, + server: String = serverPubKey, + ts: Long = ownerTs, + leaf: Int = 3, + ) = PushOwnerProof.verifyRecord( + ownerSig = ownerSig, + record = PushRecordKind.REMOVAL, + groupIdHex = gid, + memberIdHex = member, + leafIndex = leaf, + platform = "apns", + serverPubKeyHex = server, + tokenFingerprint = fingerprint, + ownerTsMillis = ts, + currentProfileGroup = true, + ) + + assertTrue(verifyWith(), "the unmodified record still verifies") + assertFalse(verifyWith(gid = "ff".repeat(32)), "moved to another group") + assertFalse(verifyWith(server = "ee".repeat(32)), "repointed at another server") + assertFalse(verifyWith(ts = ownerTs + 1), "restamped") + assertFalse(verifyWith(leaf = 4), "attributed to another leaf") + } + + /** + * A current-profile group refuses the legacy kind-450 form. Accepting it + * would let anyone able to produce the weaker proof bypass the stronger + * binding such a group already guarantees. + */ + @Test + fun aCurrentProfileGroupRefusesTheLegacyProofForm() { + // Not a real legacy signature — the point is which kind is tried, and a + // current-profile group must not fall back at all. + val notASignature = ByteArray(64) + assertFalse( + PushOwnerProof.verifyRecord( + ownerSig = notASignature, + record = PushRecordKind.REMOVAL, + groupIdHex = groupId, + memberIdHex = member, + leafIndex = 3, + platform = "apns", + serverPubKeyHex = serverPubKey, + tokenFingerprint = fingerprint, + ownerTsMillis = ownerTs, + currentProfileGroup = true, + ), + ) + } + + /** A removal carries no relay hint and no token, whatever the caller passes. */ + @Test + fun aRemovalAlwaysEncodesAnEmptyRelayHint() { + val withHint = + PushOwnerProof.tags( + record = PushRecordKind.REMOVAL, + groupIdHex = groupId, + memberIdHex = member, + leafIndex = 3, + platform = "apns", + serverPubKeyHex = serverPubKey, + tokenFingerprint = fingerprint, + ownerTsMillis = ownerTs, + relayHint = "wss://relay.example.com", + ) + assertEquals(listOf("relay_hint", ""), withHint.first { it[0] == "relay_hint" }.toList()) + assertFalse(withHint.any { it[0] == "encrypted_token_encoding" }) + } + + /** A token record adds the encoding tag; the order is fixed by the spec. */ + @Test + fun aTokenRecordCarriesTheEncodingTagLast() { + val tokenTags = + PushOwnerProof.tags( + record = PushRecordKind.TOKEN, + groupIdHex = groupId, + memberIdHex = member, + leafIndex = 0, + platform = "fcm", + serverPubKeyHex = serverPubKey, + tokenFingerprint = fingerprint, + ownerTsMillis = ownerTs, + relayHint = "wss://relay.example.com", + ) + assertEquals( + listOf( + "d", + "group_id", + "member_id", + "leaf_index", + "platform", + "server_pubkey", + "token_fingerprint", + "owner_ts", + "relay_hint", + "encrypted_token_encoding", + ), + tokenTags.map { it[0] }, + ) + assertEquals("marmot-push-token-record-v1", tokenTags[0][1]) + // Canonical decimal ASCII: zero is "0", never "00" or "". + assertEquals("0", tokenTags.first { it[0] == "leaf_index" }[1]) + } +} From 88fddce3248b2f6ba773efe6de1568da9be2a7d3 Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 21:07:39 +0000 Subject: [PATCH 16/79] feat(marmot): publish current-profile KeyPackages and groups MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Quartz half of the current profile was ready and tested; nothing in the app layer called it. KeyPackage publishing now defaults to the current profile, which is the half that decides whether anyone running the adopted spec can invite us at all — a leaf without the 0x8009 account identity proof is simply not addable to a current-profile group. `createCurrentProfileGroup` builds the group through `CurrentProfileGroupFactory` and hands it to the manager via `adoptGroup`. Group creation is the one place a group cannot be built through the manager: a leaf's identity proof covers its OWN signature key, so the keypair has to be generated and authorized by the account signer before the leaf exists. Switching the KeyPackage path surfaced the mirror image of the bug this whole effort started from. A current-profile leaf advertised only the draft app_data_dictionary extension, and a legacy group REQUIRES 0xF2EE — so our new KeyPackages were un-addable to every group that already exists. Capabilities say "this client can handle it", not "this group uses it", so the leaf now advertises both. Advertising more than a group requires is always fine; advertising less is what gets a leaf rejected. The reference-shape test now states that rule rather than asserting byte-equality with MDK's leaf. The current-profile KeyPackage event also carries neither a `relays` nor an `encoding` tag, both per transports/nostr.md: a KeyPackage is fetched from the account's own inbox relay set, so repeating the relays would be a second drifting source of truth, and the binding forbids `encoding` outright because a receiver that switched decoders on one could be steered into a different parse of the same bytes. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/commons/marmot/MarmotManager.kt | 88 +++++++++++++++++-- quartz/plans/2026-09-08-marmot-spec-resync.md | 55 ++++++++---- .../KeyPackageRotationManager.kt | 27 ++++++ .../quartz/marmot/mls/group/MlsGroup.kt | 10 ++- .../marmot/mls/group/MlsGroupManager.kt | 19 ++++ .../CurrentProfileGroupFactoryTest.kt | 17 +++- 6 files changed, 188 insertions(+), 28 deletions(-) diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index b5f3defe17..f61b8db7d5 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -30,6 +30,9 @@ import com.vitorpamplona.quartz.marmot.MarmotWelcomeSender import com.vitorpamplona.quartz.marmot.OutboundGroupEvent import com.vitorpamplona.quartz.marmot.WelcomeDelivery import com.vitorpamplona.quartz.marmot.WelcomeResult +import com.vitorpamplona.quartz.marmot.appComponents.CurrentProfileGroupFactory +import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 +import com.vitorpamplona.quartz.marmot.appComponents.MessageRetentionV1 import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageEvent import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageRotationManager @@ -490,6 +493,46 @@ class MarmotManager( return nostrGroupId } + /** + * Create a CURRENT-PROFILE group (`app-components/`, the `0x8009` profile). + * + * The difference from [createGroup] is what the group requires of its + * members: a current-profile group's GroupContext requires the account + * identity proof component, and every member leaf carries one. That is the + * interop line — a peer running the current profile refuses a leaf without + * it, and a legacy group cannot be upgraded into one by adding an + * extension, because the existing leaves have no proofs to add. + * + * The group is built outside the manager because a leaf's identity proof + * covers its OWN signature key, so the keypair must exist and be authorized + * by the account signer before the leaf is built. + */ + suspend fun createCurrentProfileGroup( + nostrGroupId: HexKey, + relays: List, + profile: GroupProfileV1? = null, + additionalAdmins: List = emptyList(), + retention: MessageRetentionV1? = null, + ): HexKey { + Log.d("MarmotManager") { "createCurrentProfileGroup($nostrGroupId): by ${signer.pubKey.take(8)}…" } + val group = + CurrentProfileGroupFactory.createGroup( + signer = signer, + nostrGroupId = nostrGroupId.hexToByteArray(), + relays = relays, + profile = profile, + additionalAdmins = additionalAdmins, + retention = retention, + ) + groupManager.adoptGroup(nostrGroupId, group) + // Same empty-obligation exception as [createGroup]: a one-member + // epoch-0 group has no peer that failure to publish could fork. + publishGate.satisfyEmptyObligation(nostrGroupId) + inboundProcessor.trackGroup(nostrGroupId) + subscriptionManager.subscribeGroup(nostrGroupId) + return nostrGroupId + } + /** A locally prepared commit, published and resolved. */ class CommitPublication( val event: OutboundGroupEvent, @@ -773,22 +816,53 @@ class MarmotManager( suspend fun generateKeyPackageEvent( relays: List, slotName: String = KeyPackageUtils.PRIMARY_SLOT, + /** + * Publish a current-profile KeyPackage, carrying the account identity + * proof in its leaf. + * + * This is the decisive interop switch. A peer running the current + * profile requires component `0x8009` and refuses a leaf without it, so + * a legacy KeyPackage is simply not addable to a current-profile group + * — which is what kept us uninvitable. + */ + currentProfile: Boolean = true, ): KeyPackageEvent { val dTag = keyPackageRotationManager.getOrCreateSlotDTag(slotName) val identity = signer.pubKey.hexToByteArray() - val bundle = keyPackageRotationManager.generateKeyPackage(identity, dTag) + val bundle = + if (currentProfile) { + keyPackageRotationManager.generateCurrentProfileKeyPackage(signer, dTag) + } else { + keyPackageRotationManager.generateKeyPackage(identity, dTag) + } val keyPackageBytes = bundle.keyPackage.toTlsBytes() val keyPackageBase64 = Base64.encode(keyPackageBytes) val keyPackageRef = bundle.keyPackage.reference().toHexKey() val template = - KeyPackageEvent.build( - keyPackageBase64 = keyPackageBase64, - dTagSlot = dTag, - keyPackageRef = keyPackageRef, - relays = relays, - ) + if (currentProfile) { + // Deliberately no `relays` tag and no `encoding` tag. + // `transports/nostr.md`: a KeyPackage is fetched from the + // account's own inbox relay set, so repeating them here would + // be a second, drifting source of truth; and the binding + // forbids an `encoding` tag outright, because a receiver that + // switched decoders on one could be steered into a different + // parse of the same bytes. + KeyPackageEvent.buildCurrentProfile( + keyPackageBase64 = keyPackageBase64, + dTagSlot = dTag, + keyPackageRef = keyPackageRef, + appComponentIds = emptyList(), + ) + } else { + KeyPackageEvent.build( + keyPackageBase64 = keyPackageBase64, + dTagSlot = dTag, + keyPackageRef = keyPackageRef, + relays = relays, + ) + } val signed = signer.sign(template) // Welcome receivers identify the consumed KeyPackage by its Nostr diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index 61dca023bd..f29c2b4f17 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -1,7 +1,9 @@ # Marmot: resync against the adopted spec and current MDK -Status: Stages 0-6 landed in Quartz, convergence is ON the inbound path, and the superseded -`CommitOrdering` tiebreak is deleted. The app layer still creates MIP-era groups. Stage 7 open. +Status: Stages 0-7 landed. Convergence is on the inbound path, the superseded `CommitOrdering` +tiebreak is deleted, the app layer publishes current-profile KeyPackages and can create +current-profile groups, and publish-before-apply is enforced. The MDK interop harness has still +never been run against a live MDK build. Sources checked on 2026-09-08: @@ -524,8 +526,29 @@ A group that goes quiet mid-pass has no inbound traffic to tick it, so the app l `settleDueConvergence()` from a timer while `openConvergencePasses()` is non-empty; that timer is not wired in `commons`/`amethyst` yet. -**Stage 7 — durability/restart conformance, app payload kinds (1009/1210), encrypted-media -v2, push owner proof.** +**Stage 7 — app payloads, encrypted media v2, push owner proof. DONE.** + +The app-payload work turned up a live conformance bug rather than a gap: we were sending inner +events WITH a Nostr signature, and a conformant decoder rejects a payload carrying a `sig` +member at all. Every message we sent was refusable by any spec-following peer. `MarmotAppEvent` +is the canonical unsigned shape; the id is unchanged by the switch (NIP-01 never hashed the +signature), so existing history still lines up, and the Android pipeline already treated inner +events as unsigned rumors, so the empty `sig` is re-added at the inbound boundary instead of +travelling on the wire. + +Duplicate-key detection needed its own scanner. Every JSON library here resolves duplicates +before the caller sees them, and "last one wins" versus "first one wins" are both defensible — +which is the problem, because identical bytes would then yield different ids on two clients. + +Kinds `1009` (edits) and `1210` (system rows) are implemented, the latter synthesized from +canonical state rather than received, which is what makes it unforgeable by one member. +Encrypted-media v2 (`0x800b`) and the kind-`451` push owner proof are implemented and verified +against the fixtures the spec publishes — the 1210 example's event id and the push removal +vector's `owner_sig` both reproduce exactly, which is what separates correct from +self-consistent. + +**Stage 7 leftover:** durability/restart conformance beyond the publish obligation (which IS +durable) — specifically re-emission and reconstruction of application effects after restart. ### Settled: Quartz keeps its own MLS @@ -563,19 +586,15 @@ Writing the producer side immediately found two bugs the reader-side tests could ## What is NOT done -- **The app layer still creates MIP-era groups.** `MarmotManager.createGroup` takes a - `MarmotGroupData`; nothing in `commons`, `amethyst`, `desktopApp` or `cli` calls - `CurrentProfileGroupFactory` yet. The Quartz half is ready and tested; the wiring is not - written. -- **Nothing drives a quiet group's pass to settle.** Convergence is on the inbound path and - settles opportunistically on the next inbound event, but a group that falls silent mid-pass - has nothing to tick it. `settleDueConvergence()` exists for the app layer's timer and no - timer calls it yet. -- **App-payload witnesses are never recorded.** `MarmotConvergenceEngine.recordWitness` is - wired into scoring but has no producer, so branch comparison currently never reaches the - witness steps. The producer is the bounded retained-candidate trial decryption still open - from Stage 4. -- **The lifecycle states gate nothing.** `GroupLifecycleState` is a correct model with no - enforcement behind it. +- **The interop harness has never been run.** Everything above is verified against the spec's + own published fixtures and against our own MLS stack talking to itself. Neither proves we + interoperate with a live MDK build; that needs MDK's pinned toolchain and a local relay. +- **`MarmotManager.createGroup` (the MIP-era path) is still the one the UI calls.** + `createCurrentProfileGroup` exists, is wired, and is tested, but the Android and desktop + "new group" flows still call the legacy one. KeyPackage publishing HAS switched: it now + defaults to the current profile, which is the half that decides whether anyone can invite us. +- **Lifecycle enforcement covers the publish path, not everything.** `PendingPublish`, + `Merging` and the outbound gates are enforced; `Unrecoverable` and `Disbanded` are still a + correct model with nothing driving them. - Stage 7: durability/restart conformance, app payload kinds `1009`/`1210`, encrypted-media v2, the push owner proof (kind `451`). diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageRotationManager.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageRotationManager.kt index 4265e6cf50..d7cc17e21b 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageRotationManager.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageRotationManager.kt @@ -20,7 +20,9 @@ */ package com.vitorpamplona.quartz.marmot.mip00KeyPackages +import com.vitorpamplona.quartz.marmot.appComponents.CurrentProfileGroupFactory import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageRotationManager.Companion.SNAPSHOT_VERSION +import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter import com.vitorpamplona.quartz.marmot.mls.crypto.Ed25519 @@ -35,6 +37,7 @@ import com.vitorpamplona.quartz.marmot.mls.tree.LeafNode import com.vitorpamplona.quartz.marmot.mls.tree.LeafNodeSource import com.vitorpamplona.quartz.marmot.mls.tree.Lifetime import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner import com.vitorpamplona.quartz.utils.Log import com.vitorpamplona.quartz.utils.TimeUtils import kotlinx.coroutines.sync.Mutex @@ -348,6 +351,30 @@ class KeyPackageRotationManager( return bundle } + /** + * Generate a CURRENT-PROFILE KeyPackage and install it in [dTagSlot]. + * + * The difference from [generateKeyPackage] is the account identity proof + * (`0x8009`) bound into the leaf, and it is the difference that decides + * interop: a peer running the current profile requires that component and + * refuses a leaf without it. The account signer is needed because the proof + * covers the leaf's OWN signature key, so the keypair has to be generated, + * authorized, and only then built into a leaf — a proof cannot be attached + * afterwards to a finished leaf. + */ + suspend fun generateCurrentProfileKeyPackage( + signer: NostrSigner, + dTagSlot: String = KeyPackageUtils.PRIMARY_SLOT, + ciphersuite: MlsCiphersuite = MlsCiphersuite.DEFAULT, + ): KeyPackageBundle { + val bundle = CurrentProfileGroupFactory.createKeyPackage(signer, ciphersuite = ciphersuite) + mutex.withLock { + activeBundles[dTagSlot] = bundle + persistUnlocked() + } + return bundle + } + /** * Get the active bundle for a d-tag slot. * Used when processing a Welcome that references one of our KeyPackages. diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index d974b0937d..79ca2a0c90 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -3242,10 +3242,18 @@ class MlsGroup private constructor( * RFC 9420 §7.2 forbids advertising DEFAULT extension types, so only * the draft `app_data_dictionary` extension and the `app_data_update` * proposal appear — `required_capabilities` support is implicit. + * + * The legacy `0xF2EE` group-data extension is advertised alongside + * them, and that is not a hedge. A capability says "this client can + * handle it", not "this group uses it", and a group that REQUIRES + * `0xF2EE` refuses to add a leaf that does not advertise it. Without + * this line a current-profile KeyPackage would be un-addable to every + * legacy group that already exists — the exact mirror of the interop + * failure the current profile was adopted to fix. */ fun currentProfileLeafCapabilities(): Capabilities = Capabilities( - extensions = listOf(AppDataDictionary.EXTENSION_TYPE), + extensions = listOf(AppDataDictionary.EXTENSION_TYPE, MarmotGroupData.EXTENSION_ID_INT), proposals = listOf(APP_DATA_UPDATE_PROPOSAL_TYPE, SELF_REMOVE_PROPOSAL_TYPE), ) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt index 0393270d61..c0678b716a 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt @@ -197,6 +197,25 @@ class MlsGroupManager( persistGroup(nostrGroupId) } + /** + * Register and persist a group built elsewhere, e.g. by + * `CurrentProfileGroupFactory`. + * + * Group creation is the one place a group cannot be built through this + * manager: a current-profile leaf must carry an identity proof over its OWN + * signature key, which only an account signer — possibly a remote bunker — + * can produce, so the keypair is generated, authorized, and only then built + * into a leaf. The manager takes ownership of the finished group here. + */ + suspend fun adoptGroup( + nostrGroupId: HexKey, + group: MlsGroup, + ) = mutex.withLock { + require(!groups.containsKey(nostrGroupId)) { "Group $nostrGroupId already exists" } + groups[nostrGroupId] = group + persistGroup(nostrGroupId) + } + /** * List all active Nostr group IDs. */ diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt index 3e63df00a8..d9788f0a58 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt @@ -22,6 +22,7 @@ package com.vitorpamplona.quartz.marmot.appComponents import com.vitorpamplona.quartz.TestResourceLoader import com.vitorpamplona.quartz.marmot.appComponents.accountIdentityProof.AccountIdentityProofV2 +import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary @@ -104,8 +105,20 @@ class CurrentProfileGroupFactoryTest { ) assertContentEquals(ByteArray(0), kpDictionary[AppComponentIds.LAST_RESORT_KEY_PACKAGE]) - // Capabilities advertise exactly the draft extension and proposals. - assertEquals(listOf(AppDataDictionary.EXTENSION_TYPE), kp.leafNode.capabilities.extensions) + // Capabilities advertise the draft extension the current profile + // needs, plus the legacy 0xF2EE group-data extension. + // + // The extra entry is deliberate and is NOT drift from the MDK + // reference. A capability says "this client can handle it", and a + // group that REQUIRES 0xF2EE refuses to add a leaf that does not + // advertise it — so without this a current-profile KeyPackage + // would be un-addable to every legacy group that already exists. + // Advertising more than a group requires is always acceptable; + // advertising less is what gets a leaf rejected. + assertEquals( + listOf(AppDataDictionary.EXTENSION_TYPE, MarmotGroupData.EXTENSION_ID_INT), + kp.leafNode.capabilities.extensions, + ) assertTrue( kp.leafNode.capabilities.proposals .contains(0x0008), From 0f264dd7676d34a61d9a2ac94e367a539078b677 Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 22:01:42 +0000 Subject: [PATCH 17/79] fix(marmot): run the interop harness, and fix what it found MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The harness had never actually been run. It now builds MDK 0.9.20 — against the same OpenMLS fork rev our vector generator pins — boots a local relay, brings up both wnd daemons and amy, and executes all 17 scenarios. They all still fail, downstream of MDK not finding A's KeyPackage, but "it runs" is the difference between having an interop signal and not having one. Four environment blockers stood between preflight and a run: protoc is now a build prerequisite; MDK 0.9.x needs WN_ALLOW_LOOPBACK_RELAYS=1 before it will accept a ws:// loopback relay at all; it refuses to create its socket unless the parent directory is 0700; and `wn --json whoami` moved to {"ok":true,"result":{"accounts":[…]}}, which the harness's extractor probed right past. Two defects in our own code came out of it. `amy relay add` reported success from its DECISION to write rather than from the store's answer, so a rejected or no-op write printed `added: yes` and the caller only discovered otherwise much later. The more consequential one: we read our OWN relay lists back through the local-network filter. That filter is correct for someone else's list — it is attacker-supplied input, and it is also what exempts a relay from Tor — but applied to a list we published ourselves it made a deliberately configured local relay look like no configuration at all. The publisher then fell back to a default set, and the harness sent A's KeyPackage to five PUBLIC relays instead of its loopback, which is the exact opposite of what a "nothing leaves the machine" harness is for. `allRelays()` now exists for reading back our own lists; the KeyPackage publish goes only to the configured relay. Test 01 is still blocked on a narrower puzzle: the kind-10051 list persists under `relay key-package set` but not under `relay add`, while kind 10050 works through the identical code path. That is a storage/CLI thread, not a protocol one, and it needs its own pass. Separately, and not a bug on either side: MDK accepts ws:// only for a loopback host while quartz strips exactly those hosts from relay lists. No address satisfies both, so a loopback-relay harness cannot pass until one side moves — and changing a Tor-adjacent privacy guard is a maintainer call, not one to make in passing. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../com/vitorpamplona/amethyst/cli/Context.kt | 15 +++++--- .../amethyst/cli/commands/RelayCommands.kt | 32 ++++++++++------- cli/tests/lib.sh | 5 +++ cli/tests/marmot/marmot-interop-headless.sh | 9 +++++ cli/tests/marmot/setup.sh | 6 ++++ quartz/plans/2026-09-08-marmot-spec-resync.md | 35 +++++++++++++++++-- .../KeyPackageRelayListEvent.kt | 34 +++++++++++++++--- .../settings/ChatMessageRelayListEvent.kt | 3 ++ .../quartz/nip17Dm/settings/tags/RelayTag.kt | 30 ++++++++++++---- 9 files changed, 139 insertions(+), 30 deletions(-) diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt index d330568c1e..15b1205945 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt @@ -480,12 +480,19 @@ class Context( ?: DefaultDMRelayList.toSet() /** - * KeyPackage relays (MIP-00 kind:10051) for this account. Falls - * back to [outboxRelays] when no kind:10051 has been seen — same - * fallback the Android app uses for KeyPackage discovery. + * Our own KeyPackage relay list (MIP-00 kind:10051). Falls back to + * [outboxRelays] when no kind:10051 has been seen — the same fallback the + * Android app uses for KeyPackage discovery. + * + * `allRelays()`, not `relays()`: the filtered accessor drops local-network + * entries because someone else's list is attacker-supplied input, but this + * is a list we published ourselves. Reading it filtered made a deliberately + * configured local relay look like no configuration at all, and the + * publisher then fell back to a default relay set the operator never chose + * — sending a KeyPackage somewhere they did not pick. */ suspend fun keyPackageRelays(): Set = - keyPackageRelaysOf(identity.pubKeyHex)?.relays()?.takeIf { it.isNotEmpty() }?.toSet() + keyPackageRelaysOf(identity.pubKeyHex)?.allRelays()?.takeIf { it.isNotEmpty() }?.toSet() ?: outboxRelays() /** Union of all three buckets. */ diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/RelayCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/RelayCommands.kt index 292a19b6b0..cb2fabe839 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/RelayCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/RelayCommands.kt @@ -146,7 +146,11 @@ object RelayCommands { "dm", ChatMessageRelayListEvent.KIND, setOf("chat", "inbox-dm"), - read = { c, pk -> c.dmInboxOf(pk)?.relays().orEmpty() }, + // allRelays(), not relays(): every Flat here is read for SELF, + // and the filtered accessor drops local entries meant for + // attacker-supplied lists — making a deliberately configured + // local relay report as no configuration at all. + read = { c, pk -> c.dmInboxOf(pk)?.allRelays().orEmpty() }, build = { c, r -> ChatMessageRelayListEvent.create(r, c.signer) }, ), Flat( @@ -154,7 +158,7 @@ object RelayCommands { "key_package", KeyPackageRelayListEvent.KIND, setOf("keypackage", "key_package"), - read = { c, pk -> c.keyPackageRelaysOf(pk)?.relays().orEmpty() }, + read = { c, pk -> c.keyPackageRelaysOf(pk)?.allRelays().orEmpty() }, build = { c, r -> KeyPackageRelayListEvent.create(r, c.signer) }, ), Flat( @@ -452,15 +456,21 @@ object RelayCommands { "add" -> { val url = urlArg(args) ?: return Output.invalidRelayUrl(args.positional(0, "url")) val existing = flat.read(ctx, self) - val added = existing.none { it.url == url.url } - if (added) ctx.verifyAndStore(flat.build(ctx, existing + url)) + // Report what the STORE did, not what we decided to try. + // These used to report the decision, so a rejected write + // printed `added: yes` and the caller only found out much + // later, when a publish silently fell back to defaults. + val added = + existing.none { it.url == url.url } && + ctx.verifyAndStore(flat.build(ctx, existing + url)) Output.emit(mapOf("noun" to flat.noun, "kind" to flat.kind, "url" to url.url, "added" to added)) } "remove", "rm" -> { val url = urlArg(args) ?: return Output.invalidRelayUrl(args.positional(0, "url")) val existing = flat.read(ctx, self) - val removed = existing.any { it.url == url.url } - if (removed) ctx.verifyAndStore(flat.build(ctx, existing.filterNot { it.url == url.url })) + val removed = + existing.any { it.url == url.url } && + ctx.verifyAndStore(flat.build(ctx, existing.filterNot { it.url == url.url })) Output.emit(mapOf("noun" to flat.noun, "kind" to flat.kind, "url" to url.url, "removed" to removed)) } "set" -> { @@ -601,13 +611,11 @@ object RelayCommands { val existing = flat.read(ctx, self) changed[flat.jsonKey] = if (add) { - val doAdd = existing.none { it.url == url.url } - if (doAdd) ctx.verifyAndStore(flat.build(ctx, existing + url)) - doAdd + existing.none { it.url == url.url } && + ctx.verifyAndStore(flat.build(ctx, existing + url)) } else { - val doRemove = existing.any { it.url == url.url } - if (doRemove) ctx.verifyAndStore(flat.build(ctx, existing.filterNot { it.url == url.url })) - doRemove + existing.any { it.url == url.url } && + ctx.verifyAndStore(flat.build(ctx, existing.filterNot { it.url == url.url })) } } diff --git a/cli/tests/lib.sh b/cli/tests/lib.sh index 913c2d8f9f..8109f1076b 100644 --- a/cli/tests/lib.sh +++ b/cli/tests/lib.sh @@ -320,6 +320,11 @@ extract_pubkey() { # JSON: {"result": [ {"pubkey": …}, … ]} — post-v0.2 `wn --json whoami` shape v=$(printf '%s' "$raw" | jq -r '.result[0].pubkey // .result[0].npub // .result[0].public_key // empty' 2>/dev/null || true) if [[ -n "$v" && "$v" != "null" ]]; then printf '%s' "$v"; return; fi + # JSON: {"ok":true,"result":{"accounts":[{"npub": ...}, ...]}} — MDK 0.9.x. + # `result` became an object with a named list, so the array-indexed probes + # above miss it entirely and the caller sees an empty npub. + v=$(printf '%s' "$raw" | jq -r '.result.accounts[0].npub // .result.accounts[0].pubkey // empty' 2>/dev/null || true) + if [[ -n "$v" && "$v" != "null" ]]; then printf '%s' "$v"; return; fi # JSON: array of accounts (whoami may return a list) v=$(printf '%s' "$raw" | jq -r '.[0].pubkey // .[0].npub // .[0].public_key // empty' 2>/dev/null || true) if [[ -n "$v" && "$v" != "null" ]]; then printf '%s' "$v"; return; fi diff --git a/cli/tests/marmot/marmot-interop-headless.sh b/cli/tests/marmot/marmot-interop-headless.sh index 59bd501fa3..3d18d10f91 100755 --- a/cli/tests/marmot/marmot-interop-headless.sh +++ b/cli/tests/marmot/marmot-interop-headless.sh @@ -54,6 +54,15 @@ RELAY_PORT="${RELAY_PORT:-8080}" RELAY_URL="ws://$RELAY_HOST:$RELAY_PORT" NO_BUILD=0 +# Required as of MDK 0.9.x. `validate_relay_url` accepts `wss://` +# unconditionally but `ws://` only for a loopback host AND only behind this +# explicit opt-in; without it wnd refuses the harness relay with "invalid relay +# URL" and exits before creating its socket. 127.0.0.2 is inside 127.0.0.0/8 and +# already passes MDK's own loopback test, so the env var is the gate, not the +# address. Exported once here so `wn` and `wnd` both inherit it — `wn` runs the +# same validation on any relay argument. +export WN_ALLOW_LOOPBACK_RELAYS=1 + A_NPUB="" A_HEX="" B_NPUB="" diff --git a/cli/tests/marmot/setup.sh b/cli/tests/marmot/setup.sh index 0c06556b9c..5d64c2d654 100644 --- a/cli/tests/marmot/setup.sh +++ b/cli/tests/marmot/setup.sh @@ -210,6 +210,11 @@ start_daemon() { -exec rm -rf {} + 2>/dev/null || true fi mkdir -p "$data_dir/logs" + # MDK refuses to create its socket if the socket's parent directory is + # group-writable or world-accessible ("unsafe on-disk permissions"). A default + # umask gives 0755, so tighten it explicitly rather than depending on whatever + # umask the caller's shell happens to have. + chmod 700 "$data_dir" # --discovery-relays / --default-account-relays are native wnd flags that # force both the discovery plane and freshly-created accounts' NIP-65 / inbox # / key-package lists onto our loopback relay (kills the "can't reach nos.lol" @@ -222,6 +227,7 @@ start_daemon() { # --secret-store file replaces the old mock-keyring source patch: account # secrets live in files under the data dir, so the daemon comes up in # containers and CI where the kernel keyring is unavailable. + # nohup "$WND_BIN" --data-dir "$data_dir" --logs-dir "$data_dir/logs" \ --socket "$socket" --secret-store file \ --discovery-relays "$RELAY_URL" --default-account-relays "$RELAY_URL" \ diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index f29c2b4f17..183c22ae0e 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -586,9 +586,38 @@ Writing the producer side immediately found two bugs the reader-side tests could ## What is NOT done -- **The interop harness has never been run.** Everything above is verified against the spec's - own published fixtures and against our own MLS stack talking to itself. Neither proves we - interoperate with a live MDK build; that needs MDK's pinned toolchain and a local relay. +- **The interop harness now RUNS but does not pass.** It used to die in preflight; it now + builds MDK 0.9.20 (against the same OpenMLS fork rev `mdk-vector-gen` pins), boots + nostr-rs-relay, brings up both `wnd` daemons and `amy`, and executes all 17 scenarios. Every + one fails, all downstream of Test 01 (MDK cannot find A's KeyPackage). Four environment + blockers were fixed to get that far, all recorded in the harness: + - `protoc` is a build prerequisite MDK now needs. + - MDK 0.9.x requires `WN_ALLOW_LOOPBACK_RELAYS=1` before it will accept a `ws://` loopback + relay at all; without it `wnd` exits before creating its socket. + - MDK refuses to create its socket unless the socket's parent directory is `0700`. + - `wn --json whoami` moved to `{"ok":true,"result":{"accounts":[…]}}`; the harness's + `extract_pubkey` probed only the older array shapes and silently returned nothing. + + Two real defects in our own code came out of the run, both fixed: + - `amy relay add` reported success from the DECISION to write, not the store's answer, so a + rejected or no-op write printed `added: yes`. + - Our own KeyPackage/DM relay lists were read back through the local-network filter. That + filter is right for someone else's list — it is attacker-supplied input, and it is also what + exempts a relay from Tor — but applying it to a list we published ourselves made a + deliberately configured local relay look like no configuration at all. The publisher then + fell back to a default set, and A's KeyPackage went to five PUBLIC relays instead of the + harness's loopback. `allRelays()` now exists for reading back our own lists, and the + KeyPackage publish goes only to the configured relay. + + **Still blocking Test 01:** the kind-10051 list persists under `relay key-package set` but not + under `relay add`/`relay key-package add`, so MDK finds no relay list to fetch A's KeyPackage + from. `verifyAndStore` returns true and kind 10050 works through the identical code path, so + this is a storage/CLI issue rather than a protocol one, and it needs its own focused pass. + + **Also unresolved, and it is a design conflict rather than a bug:** MDK accepts `ws://` ONLY + for a loopback host, while quartz strips exactly those hosts out of relay lists. No address + satisfies both, so a loopback-relay harness cannot work until one side moves. Changing a + Tor-adjacent privacy guard is a maintainer decision, not one to make in passing. - **`MarmotManager.createGroup` (the MIP-era path) is still the one the UI calls.** `createCurrentProfileGroup` exists, is wired, and is tested, but the Android and desktop "new group" flows still call the legacy one. KeyPackage publishing HAS switched: it now diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageRelayListEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageRelayListEvent.kt index 137afb2c55..613cba6650 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageRelayListEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageRelayListEvent.kt @@ -25,6 +25,7 @@ import com.vitorpamplona.quartz.nip01Core.core.Address import com.vitorpamplona.quartz.nip01Core.core.BaseReplaceableEvent import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl +import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer import com.vitorpamplona.quartz.nip01Core.relay.normalizer.isLocalHost import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerSync @@ -48,8 +49,32 @@ class KeyPackageRelayListEvent( content: String, sig: HexKey, ) : BaseReplaceableEvent(id, pubKey, createdAt, KIND, tags, content, sig) { + /** + * Relays from this list, with local-network entries dropped. + * + * The drop is for lists that came from SOMEONE ELSE. A relay list is + * attacker-supplied input, and an entry pointing at `127.0.0.1` or a + * RFC 1918 address would aim our connection at our own machine or LAN. It + * is also what exempts a relay from Tor, so an unfiltered entry could + * quietly strip a relay's own onion routing. + * + * Use [allRelays] to read back a list this account published itself; our + * own configuration is not attacker-supplied, and silently dropping it + * makes a deliberately configured local relay look unconfigured. + */ fun relays(): List = tags.mapNotNull(RelayTag::parse) + /** + * Every relay in this list, including local ones. + * + * For reading back OUR OWN published list. A user who configured a local + * relay meant it, and [relays] would report their list as empty — which a + * publisher then treats as "unconfigured" and answers with a default set + * the user never chose. Sending a KeyPackage somewhere the user did not + * pick is a worse outcome than the one the filter guards against. + */ + fun allRelays(): List = tags.mapNotNull(RelayTag::parseUnfiltered) + companion object { const val KIND = 10051 @@ -98,12 +123,11 @@ class KeyPackageRelayListEvent( private object RelayTag { const val TAG_NAME = "relay" - fun parse(tag: Array): NormalizedRelayUrl? { + fun parse(tag: Array): NormalizedRelayUrl? = parseUnfiltered(tag)?.takeUnless { it.isLocalHost() } + + fun parseUnfiltered(tag: Array): NormalizedRelayUrl? { if (tag.size < 2 || tag[0] != TAG_NAME || tag[1].isEmpty()) return null - val relay = - com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer - .normalizeOrNull(tag[1]) - return relay?.takeUnless { it.isLocalHost() } + return RelayUrlNormalizer.normalizeOrNull(tag[1]) } fun assemble(relay: NormalizedRelayUrl) = arrayOf(TAG_NAME, relay.url) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip17Dm/settings/ChatMessageRelayListEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip17Dm/settings/ChatMessageRelayListEvent.kt index 80ed9a356f..10847c6d38 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip17Dm/settings/ChatMessageRelayListEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip17Dm/settings/ChatMessageRelayListEvent.kt @@ -42,6 +42,9 @@ class ChatMessageRelayListEvent( ) : BaseReplaceableEvent(id, pubKey, createdAt, KIND, tags, content, sig) { fun relays(): List = tags.mapNotNull(RelayTag::parse) + /** Every relay in this list, local ones included. For reading back our OWN list. */ + fun allRelays(): List = tags.mapNotNull(RelayTag::parseUnfiltered) + companion object { const val KIND = 10050 diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip17Dm/settings/tags/RelayTag.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip17Dm/settings/tags/RelayTag.kt index 1268939741..ffc32f424f 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip17Dm/settings/tags/RelayTag.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip17Dm/settings/tags/RelayTag.kt @@ -34,16 +34,34 @@ class RelayTag { fun notMatch(tag: Array) = !(tag.has(0) && tag[0] == TAG_NAME) + /** + * Parse, dropping local-network entries. + * + * The drop is for lists that came from SOMEONE ELSE: a relay list is + * attacker-supplied input, and an entry naming `127.0.0.1` or an + * RFC 1918 address would aim our connection at our own machine or LAN. + * Use [parseUnfiltered] to read back a list this account published + * itself. + */ fun parse(tag: Array): NormalizedRelayUrl? { + val relay = parseUnfiltered(tag) + ensure(relay != null && !relay.isLocalHost()) { return null } + return relay + } + + /** + * Parse without the local-network drop, for reading back OUR OWN list. + * + * A user who configured a local relay meant it, and [parse] would + * report their list as empty — which a publisher then treats as + * "unconfigured" and answers with a default relay set the user never + * chose. + */ + fun parseUnfiltered(tag: Array): NormalizedRelayUrl? { ensure(tag.has(1)) { return null } ensure(tag[0] == TAG_NAME) { return null } ensure(tag[1].isNotEmpty()) { return null } - - val relay = RelayUrlNormalizer.normalizeOrNull(tag[1]) - - ensure(relay != null && !relay.isLocalHost()) { return null } - - return relay + return RelayUrlNormalizer.normalizeOrNull(tag[1]) } fun assemble(relay: NormalizedRelayUrl) = arrayOf(TAG_NAME, relay.url) From 46845d9058aacdbfa872c23cb7fb7c8e7dececaa Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 8 Sep 2026 23:11:02 +0000 Subject: [PATCH 18/79] =?UTF-8?q?fix(marmot):=20frame=20published=20KeyPac?= =?UTF-8?q?kages=20as=20MLSMessage=20=E2=80=94=20interop=20test=2001=20pas?= =?UTF-8?q?ses?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Test 01 (bidirectional KeyPackage discovery with MDK) now passes. It was failing on a four-byte omission. `foundation/key-packages.md`: "a transport publication is unambiguously the framed MLSMessage, not a bare KeyPackage struct." We published bare bytes. That is not a cosmetic difference — a reader expecting the envelope reads a bare KeyPackage's leading 0x0001 0x0001 as version 1, wire format 1 (mls_public_message), parses on as a PublicMessage, and dies several fields later on a byte that means nothing. MDK reported `UnknownValue(112)`, a number that appears nowhere in a KeyPackage, which is why this was invisible from our side: our own decoder round-tripped our own bytes perfectly. Only a second implementation could find it. The KeyPackageRef stays over the INNER KeyPackage, as RFC 9420 MakeKeyPackageRef defines — framing the ref too would make our `i` tag disagree with everyone else's. Bare bytes are still accepted on read: every KeyPackage we published before this is bare and still inside its lifetime, and refusing them would leave our own users unable to invite each other until all of them rotated. With framing fixed MDK got one field further and rejected the next thing: "mls_extensions tag does not exactly match decoded KeyPackage metadata". Those id-list tags duplicate metadata already inside the KeyPackage, and we were writing them by hand — so adding one leaf capability (the legacy 0xF2EE, added so our KeyPackages stay addable to existing groups) silently invalidated every KeyPackage we published. They are now derived from the KeyPackage itself and cannot drift. `app_components` lists the Marmot registry ids only; the upstream MLS-extensions component ids below 0x8000 are not app components being advertised. The harness needed one more fix: MDK 0.9.x reports a found KeyPackage under `result.key_package`, and the harness probed two older shapes, so a successful check read as a failure. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- cli/tests/marmot/tests-create.sh | 4 +- .../amethyst/commons/marmot/MarmotManager.kt | 48 ++++---- .../mip00KeyPackages/KeyPackageEvent.kt | 71 +++++++++++- .../mip00KeyPackages/KeyPackageUtils.kt | 51 ++++++++- .../mip00KeyPackages/KeyPackageFramingTest.kt | 104 ++++++++++++++++++ 5 files changed, 253 insertions(+), 25 deletions(-) create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageFramingTest.kt diff --git a/cli/tests/marmot/tests-create.sh b/cli/tests/marmot/tests-create.sh index 218851be04..b868380ef9 100644 --- a/cli/tests/marmot/tests-create.sh +++ b/cli/tests/marmot/tests-create.sh @@ -10,7 +10,9 @@ test_01_keypackage_discovery() { # B finds A's KP local raw ev raw=$(wn_b --json keys check "$A_NPUB" 2>>"$LOG_FILE" || true) - ev=$(printf '%s' "$raw" | jq -r '.result.event_id // .event_id // empty') + # MDK 0.9.x reports the found KeyPackage under result.key_package; the two + # older shapes are kept so this still reads a pre-0.9 daemon. + ev=$(printf '%s' "$raw" | jq -r '.result.key_package.key_package_event_id // .result.event_id // .event_id // empty') if [[ -z "$ev" || "$ev" == "null" ]]; then record_result "$id (B->A)" fail "wn couldn't find A's KP"; return fi diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index f61b8db7d5..9b16da3617 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -418,12 +418,11 @@ class MarmotManager( keyPackageEventId: HexKey, relays: List, ): Pair { - // Verify that the KeyPackage credential matches the expected member pubkey - val kp = - com.vitorpamplona.quartz.marmot.mls.messages.MlsKeyPackage.decodeTls( - com.vitorpamplona.quartz.marmot.mls.codec - .TlsReader(keyPackageBytes), - ) + // Verify that the KeyPackage credential matches the expected member + // pubkey. Accepts either framing — a peer's published KeyPackage is an + // MLSMessage, and bare bytes still arrive from our own pre-fix + // publications sitting on relays. + val kp = KeyPackageUtils.decodeKeyPackage(keyPackageBytes) val credential = kp.leafNode.credential require(credential is Credential.Basic) { "KeyPackage must use BasicCredential" @@ -439,7 +438,9 @@ class MarmotManager( // that key. val publication = commitAndPublish(nostrGroupId, relays) { - groupManager.stageAddMember(nostrGroupId, keyPackageBytes) + // The BARE KeyPackage, not the bytes as published. Transport + // framing is the Marmot layer's business; MLS takes the struct. + groupManager.stageAddMember(nostrGroupId, kp.toTlsBytes()) } // The Welcome is a SEPARATE, retryable per-invitee delivery obligation @@ -836,24 +837,32 @@ class MarmotManager( keyPackageRotationManager.generateKeyPackage(identity, dTag) } - val keyPackageBytes = bundle.keyPackage.toTlsBytes() - val keyPackageBase64 = Base64.encode(keyPackageBytes) + // Framed as an MLSMessage, never bare: `foundation/key-packages.md` + // says a transport publication IS the framed message. The ref stays + // over the INNER KeyPackage, which is what RFC 9420 MakeKeyPackageRef + // hashes — framing the ref too would make our `i` tag disagree with + // every other implementation's. + val keyPackageBase64 = Base64.encode(KeyPackageUtils.frameKeyPackage(bundle.keyPackage)) val keyPackageRef = bundle.keyPackage.reference().toHexKey() val template = if (currentProfile) { + // Every id-list tag is derived from the KeyPackage itself. + // They duplicate metadata already inside it, so writing them by + // hand is a second source of truth — and a receiver that + // compares them (MDK does, exactly) rejects the KeyPackage the + // moment the two disagree. + // // Deliberately no `relays` tag and no `encoding` tag. // `transports/nostr.md`: a KeyPackage is fetched from the - // account's own inbox relay set, so repeating them here would - // be a second, drifting source of truth; and the binding - // forbids an `encoding` tag outright, because a receiver that - // switched decoders on one could be steered into a different - // parse of the same bytes. - KeyPackageEvent.buildCurrentProfile( - keyPackageBase64 = keyPackageBase64, + // account's own NIP-65 write set, so repeating relays here + // would be another drifting duplicate; and the binding forbids + // an `encoding` tag outright, because a receiver that switched + // decoders on one could be steered into a different parse of + // the same bytes. + KeyPackageEvent.buildCurrentProfileFrom( + keyPackage = bundle.keyPackage, dTagSlot = dTag, - keyPackageRef = keyPackageRef, - appComponentIds = emptyList(), ) } else { KeyPackageEvent.build( @@ -884,8 +893,7 @@ class MarmotManager( val identity = signer.pubKey.hexToByteArray() return pendingSlots.map { slot -> val bundle = keyPackageRotationManager.rotateSlot(identity, slot) - val keyPackageBytes = bundle.keyPackage.toTlsBytes() - val keyPackageBase64 = Base64.encode(keyPackageBytes) + val keyPackageBase64 = Base64.encode(KeyPackageUtils.frameKeyPackage(bundle.keyPackage)) val keyPackageRef = bundle.keyPackage.reference().toHexKey() val template = diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageEvent.kt index 76b4238187..5686cd69d1 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageEvent.kt @@ -24,13 +24,19 @@ import androidx.compose.runtime.Immutable import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.AppComponentsTag import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.EncodingTag import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.MlsProposalsTag +import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary +import com.vitorpamplona.quartz.marmot.mls.components.ComponentsList +import com.vitorpamplona.quartz.marmot.mls.messages.MlsKeyPackage import com.vitorpamplona.quartz.nip01Core.core.BaseAddressableEvent import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder +import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl import com.vitorpamplona.quartz.nip01Core.signers.eventTemplate import com.vitorpamplona.quartz.nip01Core.tags.dTag.dTag import com.vitorpamplona.quartz.utils.TimeUtils +import kotlin.io.encoding.Base64 +import kotlin.io.encoding.ExperimentalEncodingApi /** * Marmot KeyPackage Event (MIP-00) — kind 30443. @@ -125,6 +131,8 @@ class KeyPackageEvent( keyPackageRef: HexKey, appComponentIds: List, ciphersuite: String = "0x0001", + mlsExtensionIds: List = listOf(CURRENT_PROFILE_EXTENSION), + mlsProposalIds: List = listOf(APP_DATA_UPDATE_PROPOSAL, MlsProposalsTag.SELF_REMOVE), clientName: String? = null, createdAt: Long = TimeUtils.now(), initializer: TagArrayBuilder.() -> Unit = {}, @@ -132,8 +140,8 @@ class KeyPackageEvent( dTag(dTagSlot) mlsProtocolVersion() mlsCiphersuite(ciphersuite) - mlsExtensions(listOf(CURRENT_PROFILE_EXTENSION)) - mlsProposals(listOf(APP_DATA_UPDATE_PROPOSAL, MlsProposalsTag.SELF_REMOVE)) + mlsExtensions(mlsExtensionIds.distinct().sorted()) + mlsProposals(mlsProposalIds.distinct().sorted()) appComponents( (appComponentIds + AppComponentsTag.ACCOUNT_IDENTITY_PROOF_V2).distinct().sorted(), ) @@ -142,6 +150,65 @@ class KeyPackageEvent( initializer() } + /** + * Build the event from the KeyPackage itself, deriving every id-list + * tag from the bytes it advertises. + * + * The tags duplicate metadata that is already inside the KeyPackage, so + * writing them by hand is writing a second source of truth — and MDK + * rejects a KeyPackage whose `mls_extensions` tag "does not exactly + * match decoded KeyPackage metadata". Adding one leaf capability and + * forgetting the tag is enough to make every one of our KeyPackages + * unusable, which is exactly what happened. + * + * `app_components` lists the Marmot registry ids only. The + * `app_components` component itself (`0x0001`) and the other upstream + * MLS-extensions component ids live below `0x8000` and are not app + * components being advertised. + */ + @OptIn(ExperimentalEncodingApi::class) + fun buildCurrentProfileFrom( + keyPackage: MlsKeyPackage, + dTagSlot: String, + clientName: String? = null, + createdAt: Long = TimeUtils.now(), + initializer: TagArrayBuilder.() -> Unit = {}, + ) = buildCurrentProfile( + keyPackageBase64 = Base64.encode(KeyPackageUtils.frameKeyPackage(keyPackage)), + dTagSlot = dTagSlot, + keyPackageRef = keyPackage.reference().toHexKey(), + appComponentIds = advertisedAppComponents(keyPackage).map(::idHex), + ciphersuite = idHex(keyPackage.cipherSuite), + mlsExtensionIds = + keyPackage.leafNode.capabilities.extensions + .map(::idHex), + mlsProposalIds = + keyPackage.leafNode.capabilities.proposals + .map(::idHex), + clientName = clientName, + createdAt = createdAt, + initializer = initializer, + ) + + /** `0x`-prefixed lowercase hex of a 16-bit id, zero-padded to four digits. */ + fun idHex(id: Int): String { + val hex = id.toString(16) + return "0x" + "0".repeat(4 - hex.length) + hex + } + + /** Marmot app-component ids the leaf advertises, from its `app_components` component. */ + private fun advertisedAppComponents(keyPackage: MlsKeyPackage): List = + try { + val dictionary = AppDataDictionary.fromExtensionsOrEmpty(keyPackage.leafNode.extensions) + val list = dictionary[ComponentsList.APP_COMPONENTS_ID] ?: return emptyList() + ComponentsList.decode(list).filter { it >= MARMOT_COMPONENT_RANGE_START } + } catch (_: Exception) { + emptyList() + } + + /** Marmot's own component registry starts here; lower ids are upstream MLS-extensions ones. */ + private const val MARMOT_COMPONENT_RANGE_START = 0x8000 + /** MIP-era builder, kept for legacy groups already on disk. */ fun build( keyPackageBase64: String, diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageUtils.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageUtils.kt index e5617a900f..a5fd89b6ee 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageUtils.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageUtils.kt @@ -33,6 +33,8 @@ import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary import com.vitorpamplona.quartz.marmot.mls.components.ComponentsList import com.vitorpamplona.quartz.marmot.mls.crypto.MlsCryptoProvider +import com.vitorpamplona.quartz.marmot.mls.framing.MlsMessage +import com.vitorpamplona.quartz.marmot.mls.framing.WireFormat import com.vitorpamplona.quartz.marmot.mls.messages.MlsKeyPackage import com.vitorpamplona.quartz.marmot.mls.tree.Credential import com.vitorpamplona.quartz.nip01Core.core.Event @@ -59,6 +61,52 @@ object KeyPackageUtils { */ const val MAX_LIFETIME_SECONDS = 7_261_200L + /** + * Frame a KeyPackage for publication. + * + * `foundation/key-packages.md` is explicit: "a transport publication is + * unambiguously the framed `MLSMessage`, not a bare `KeyPackage` struct." + * The envelope is only four bytes — `ProtocolVersion` then + * `WireFormat = mls_key_package` — but omitting it is not a cosmetic + * difference. A reader that expects the envelope reads a bare KeyPackage's + * leading `0x0001 0x0001` as version 1, wire format 1 (`mls_public_message`) + * and then parses the rest as a PublicMessage, desyncing a few fields in + * and failing on whatever byte it lands on. That is exactly how MDK + * rejected every KeyPackage we published, with a decode error naming a + * value that appears nowhere in the structure. + */ + fun frameKeyPackage(keyPackage: MlsKeyPackage): ByteArray = + MlsMessage( + wireFormat = WireFormat.KEY_PACKAGE, + payload = keyPackage.toTlsBytes(), + ).toTlsBytes() + + /** + * Decode published KeyPackage bytes, framed or bare. + * + * Framed is what the spec requires and what we now publish. The bare form + * is accepted because every KeyPackage this client published before the fix + * is bare, and those are still sitting on relays inside their publication + * lifetime; refusing them would make our own users un-invitable by each + * other until every one of them rotated. + * + * The two are told apart by the envelope rather than by trial and error: a + * framed message starts with `ProtocolVersion = 1` and + * `WireFormat = mls_key_package`, and a bare KeyPackage's second field is + * its ciphersuite, which is never 5 for any suite Marmot uses. + */ + fun decodeKeyPackage(bytes: ByteArray): MlsKeyPackage { + if (bytes.size >= 4) { + val version = ((bytes[0].toInt() and 0xFF) shl 8) or (bytes[1].toInt() and 0xFF) + val wireFormat = ((bytes[2].toInt() and 0xFF) shl 8) or (bytes[3].toInt() and 0xFF) + if (version == MlsMessage.MLS_VERSION_10 && wireFormat == WireFormat.KEY_PACKAGE.value) { + val message = MlsMessage.decodeTls(TlsReader(bytes)) + return MlsKeyPackage.decodeTls(TlsReader(message.payload)) + } + } + return MlsKeyPackage.decodeTls(TlsReader(bytes)) + } + /** Legacy non-addressable KeyPackage kind (pre-migration) */ const val LEGACY_KIND = 443 @@ -190,8 +238,7 @@ object KeyPackageUtils { val iTag = event.keyPackageRef() ?: return false val keyPackage = try { - val bytes = Base64.decode(event.content) - MlsKeyPackage.decodeTls(TlsReader(bytes)) + decodeKeyPackage(Base64.decode(event.content)) } catch (_: Throwable) { return false } diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageFramingTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageFramingTest.kt new file mode 100644 index 0000000000..26619fe6f9 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageFramingTest.kt @@ -0,0 +1,104 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip00KeyPackages + +import com.vitorpamplona.quartz.marmot.mls.framing.MlsMessage +import com.vitorpamplona.quartz.marmot.mls.framing.WireFormat +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroup +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertTrue + +/** + * `foundation/key-packages.md`: "a transport publication is unambiguously the + * framed `MLSMessage`, not a bare `KeyPackage` struct." + * + * We published bare bytes, and it cost us every invitation. A reader expecting + * the envelope reads a bare KeyPackage's leading `0x0001 0x0001` as + * version 1 / wire format 1 (`mls_public_message`), parses on as a + * PublicMessage, and dies several fields later on a byte that means nothing — + * MDK reported `UnknownValue(112)`, a number that appears nowhere in a + * KeyPackage. A four-byte envelope is not a detail when its absence is + * indistinguishable from a different message type. + */ +class KeyPackageFramingTest { + private fun aKeyPackage() = + MlsGroup + .create(identity = ByteArray(32) { 0x0a }) + .createKeyPackage(identity = ByteArray(32) { 0x0b }, signingKey = ByteArray(32) { 1 }) + .keyPackage + + @Test + fun framesAsAnMlsMessageWithTheKeyPackageWireFormat() { + val kp = aKeyPackage() + val framed = KeyPackageUtils.frameKeyPackage(kp) + + assertEquals(MlsMessage.MLS_VERSION_10, ((framed[0].toInt() and 0xFF) shl 8) or (framed[1].toInt() and 0xFF)) + assertEquals(WireFormat.KEY_PACKAGE.value, ((framed[2].toInt() and 0xFF) shl 8) or (framed[3].toInt() and 0xFF)) + assertEquals(kp.toTlsBytes().size + 4, framed.size) + } + + @Test + fun decodesItsOwnFraming() { + val kp = aKeyPackage() + val decoded = KeyPackageUtils.decodeKeyPackage(KeyPackageUtils.frameKeyPackage(kp)) + assertContentEquals(kp.toTlsBytes(), decoded.toTlsBytes()) + } + + /** + * Bare bytes still decode. Every KeyPackage this client published before + * the fix is bare and still inside its publication lifetime; refusing them + * would leave our own users unable to invite each other until all of them + * rotated. + */ + @Test + fun stillDecodesTheBareLegacyForm() { + val kp = aKeyPackage() + val decoded = KeyPackageUtils.decodeKeyPackage(kp.toTlsBytes()) + assertContentEquals(kp.toTlsBytes(), decoded.toTlsBytes()) + } + + /** + * The two forms are told apart by the envelope, not by trial and error: a + * bare KeyPackage's second field is its ciphersuite, which is never 5. + */ + @Test + fun tellsTheFormsApartByTheEnvelopeNotByGuessing() { + val kp = aKeyPackage() + val bare = kp.toTlsBytes() + assertEquals(MlsMessage.MLS_VERSION_10, ((bare[0].toInt() and 0xFF) shl 8) or (bare[1].toInt() and 0xFF)) + val suite = ((bare[2].toInt() and 0xFF) shl 8) or (bare[3].toInt() and 0xFF) + assertTrue(suite != WireFormat.KEY_PACKAGE.value, "a real ciphersuite must not collide with the wire format") + } + + /** + * `KeyPackageRef` is computed over the INNER KeyPackage, never the + * envelope — framing it too would make our `i` tag disagree with every + * other implementation's. + */ + @Test + fun theReferenceIsOverTheInnerKeyPackage() { + val kp = aKeyPackage() + val framed = KeyPackageUtils.frameKeyPackage(kp) + assertContentEquals(kp.reference(), KeyPackageUtils.decodeKeyPackage(framed).reference()) + } +} From a044f4c38bdf4eef3eb03049a65aec9d6c5e0b46 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 00:27:59 +0000 Subject: [PATCH 19/79] fix(marmot): create current-profile groups from the CLI, and fix the relay sets that broke them MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit `amy marmot group create` now builds a current-profile group; `--legacy` keeps the MIP-era path for reproducing groups already on disk. The difference is what a group REQUIRES of a joining leaf — the account identity proof, which every conformant peer's KeyPackage carries, versus `0xF2EE`, which none of them do. With this, `group add` accepts an MDK KeyPackage where it previously failed the capability gate outright. Making that work surfaced two bugs that would each have been fatal on their own. `MarmotManager.groupRelays` read only the legacy `0xF2EE` extension, but a current-profile group routes through `NostrRoutingV1` (`0x8004`). Every current-profile group therefore had an EMPTY recipient scope — so under publish-before-apply no commit could ever be acknowledged, and no such group could ever advance past epoch 0. It now reads both. And the local-network relay filter turned up a third time, in NIP-65: `parseReadNorm`/`parseWriteNorm` dropped loopback entries, so our own outbox and inbox read as empty while `nip65` showed the relay. Everything then published to the default relay set — which is why commits and Welcomes were going to public relays instead of the harness's loopback. Same split as before: filtered for someone else's list (it is attacker-supplied input, and it is what exempts a relay from Tor), unfiltered for reading back our own. Two conformance fixes came with it. The Welcome rumor carried an `encoding` tag, which the binding forbids outright for every event shape it defines — a receiver that switched decoders on one could be steered into a different parse of the same bytes. And we implemented encrypted-media v2 last commit but never advertised `0x800b` in the leaf, so a group requiring it would refuse us; the advertised list now carries it, with a note that an id belongs there only when the component is actually implemented. `MarmotMipBehaviorTest` asserted the MIP-era rule that a rumor MUST carry an encoding tag. The adopted binding reverses it, so the test now asserts the current rule. Interop test 01 still passes. Test 02 (invite MDK into our group) reaches MDK but is not yet ingested; a control run confirms MDK->MDK invites work in this harness, so the remaining defect is ours, in the Welcome. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../com/vitorpamplona/amethyst/cli/Context.kt | 23 +++++----- .../amethyst/cli/commands/GroupCommands.kt | 4 +- .../cli/commands/GroupCreateCommand.kt | 46 +++++++++++++------ .../amethyst/cli/commands/RelayCommands.kt | 13 ++++-- .../amethyst/commons/marmot/MarmotManager.kt | 23 +++++++--- .../CurrentProfileGroupFactory.kt | 8 ++++ .../marmot/mip02Welcome/WelcomeEvent.kt | 6 ++- .../AdvertisedRelayListEvent.kt | 6 +++ .../tags/AdvertisedRelayInfoTag.kt | 39 +++++++++++----- .../quartz/marmot/MarmotMipBehaviorTest.kt | 12 +++-- 10 files changed, 128 insertions(+), 52 deletions(-) diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt index 15b1205945..a25ee4d8e1 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt @@ -457,7 +457,7 @@ class Context( * Android app. */ suspend fun outboxRelays(): Set = - relaysOf(identity.pubKeyHex)?.writeRelaysNorm()?.takeIf { it.isNotEmpty() }?.toSet() + relaysOf(identity.pubKeyHex)?.allWriteRelaysNorm()?.takeIf { it.isNotEmpty() }?.toSet() ?: DefaultNIP65RelaySet /** @@ -468,7 +468,7 @@ class Context( * marked. */ suspend fun nip65ReadRelays(): Set = - relaysOf(identity.pubKeyHex)?.readRelaysNorm()?.takeIf { it.isNotEmpty() }?.toSet() + relaysOf(identity.pubKeyHex)?.allReadRelaysNorm()?.takeIf { it.isNotEmpty() }?.toSet() ?: outboxRelays() /** @@ -476,7 +476,7 @@ class Context( * to [DefaultDMRelayList] when no kind:10050 has been seen. */ suspend fun inboxRelays(): Set = - dmInboxOf(identity.pubKeyHex)?.relays()?.takeIf { it.isNotEmpty() }?.toSet() + dmInboxOf(identity.pubKeyHex)?.allRelays()?.takeIf { it.isNotEmpty() }?.toSet() ?: DefaultDMRelayList.toSet() /** @@ -885,14 +885,15 @@ class Context( } ?: input } - fun marmotGroupRelays(nostrGroupId: HexKey): Set { - val m = marmot.groupMetadata(nostrGroupId) ?: return emptySet() - return m.relays - .mapNotNull { - com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer - .normalizeOrNull(it) - }.toSet() - } + /** + * The group's own relay set, from whichever routing component it carries. + * + * Delegates rather than reading `MarmotGroupData` directly: a + * current-profile group has no `0xF2EE` extension at all, and reading only + * that one silently returned an empty set for every group the current + * profile creates. + */ + fun marmotGroupRelays(nostrGroupId: HexKey): Set = marmot.groupRelays(nostrGroupId).toSet() override fun close() { // Nothing to persist for an anonymous run (no account dir to write into). diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCommands.kt index a729eb6cbb..eff9dd0b90 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCommands.kt @@ -27,7 +27,9 @@ object GroupCommands { """ |amy marmot group — MLS group management | - | marmot group create [--name NAME] create an empty group (self-only) + | marmot group create [--name NAME] create an empty group (self-only); + | [--legacy] --legacy builds a MIP-era group that + | only 0xF2EE-capable leaves can join | marmot group list list joined groups | marmot group show GID print full group details | marmot group members GID print members diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCreateCommand.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCreateCommand.kt index 3f72301a57..7adb4d60b0 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCreateCommand.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCreateCommand.kt @@ -24,6 +24,7 @@ import com.vitorpamplona.amethyst.cli.Args import com.vitorpamplona.amethyst.cli.Context import com.vitorpamplona.amethyst.cli.DataDir import com.vitorpamplona.amethyst.cli.Output +import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.utils.RandomInstance @@ -35,32 +36,51 @@ object GroupCreateCommand { ): Int { val args = Args(rest) val name = args.flag("name", "")!! + val legacy = args.bool("legacy") args.rejectUnknown() Context.open(dataDir).use { ctx -> ctx.prepare() val gid = RandomInstance.bytes(32).toHexKey() - - // Stamp initial metadata via the shared factory so UI + CLI stay - // byte-identical. Bake the MarmotGroupData extension into the - // epoch-0 GroupContext directly (see `MarmotManager.createGroup`) - // so later invitees receive a pre-populated group from the - // welcome and never have to chase an undecryptable bootstrap - // commit that predates their membership. val outboxUrls = ctx.outboxRelays().map { it.url } - val metadata = - MarmotGroupData.bootstrap( + + if (legacy) { + // MIP-era group: its GroupContext requires the `0xF2EE` + // group-data extension, so only members whose leaves advertise + // that capability can be added. Kept for reproducing the + // behaviour of groups already on disk. + // + // Bake MarmotGroupData into the epoch-0 GroupContext directly + // so later invitees receive a pre-populated group from the + // welcome and never have to chase an undecryptable bootstrap + // commit that predates their membership. + val metadata = + MarmotGroupData.bootstrap( + nostrGroupId = gid, + creatorPubKey = ctx.identity.pubKeyHex, + outboxRelays = outboxUrls, + name = name, + ) + ctx.marmot.createGroup(gid, initialMetadata = metadata) + } else { + // Current profile by default. The difference is what the group + // REQUIRES of a joining leaf: a current-profile group asks for + // the account identity proof, which every conformant peer's + // KeyPackage carries, while a legacy group asks for `0xF2EE`, + // which none of them do. Defaulting to legacy made every + // outside member un-addable. + ctx.marmot.createCurrentProfileGroup( nostrGroupId = gid, - creatorPubKey = ctx.identity.pubKeyHex, - outboxRelays = outboxUrls, - name = name, + relays = outboxUrls, + profile = if (name.isEmpty()) null else GroupProfileV1(name, ""), ) - ctx.marmot.createGroup(gid, initialMetadata = metadata) + } Output.emit( mapOf( "group_id" to gid, "mls_group_id" to ctx.marmot.mlsGroupIdHex(gid), "name" to name, + "profile" to if (legacy) "legacy" else "current", "epoch" to ctx.marmot.groupEpoch(gid), ), ) diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/RelayCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/RelayCommands.kt index cb2fabe839..09f31e2e29 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/RelayCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/RelayCommands.kt @@ -557,8 +557,11 @@ object RelayCommands { mapOf( "noun" to "nip65", "kind" to AdvertisedRelayListEvent.KIND, - "read" to (nip65?.readRelaysNorm()?.map { it.url } ?: emptyList()), - "write" to (nip65?.writeRelaysNorm()?.map { it.url } ?: emptyList()), + // Unfiltered: this is OUR list, and reporting it + // through the attacker-input filter would hide a + // local relay the operator deliberately configured. + "read" to (nip65?.allReadRelaysNorm()?.map { it.url } ?: emptyList()), + "write" to (nip65?.allWriteRelaysNorm()?.map { it.url } ?: emptyList()), "relays" to (nip65?.relaysNorm()?.map { it.url } ?: emptyList()), ), ) @@ -641,8 +644,8 @@ object RelayCommands { val self = ctx.identity.pubKeyHex val nip65 = ctx.relaysOf(self) val out = linkedMapOf() - out["outbox"] = nip65?.writeRelaysNorm()?.map { it.url } ?: emptyList() - out["inbox"] = nip65?.readRelaysNorm()?.map { it.url } ?: emptyList() + out["outbox"] = nip65?.allWriteRelaysNorm()?.map { it.url } ?: emptyList() + out["inbox"] = nip65?.allReadRelaysNorm()?.map { it.url } ?: emptyList() out["nip65"] = nip65?.relaysNorm()?.map { it.url } ?: emptyList() for (flat in FLATS) { out[flat.jsonKey] = flat.read(ctx, self).map { it.url } @@ -732,7 +735,7 @@ object RelayCommands { facet: Facet, ): List { val nip65 = ctx.relaysOf(self) - val urls = if (facet == Facet.OUTBOX) nip65?.writeRelaysNorm() else nip65?.readRelaysNorm() + val urls = if (facet == Facet.OUTBOX) nip65?.allWriteRelaysNorm() else nip65?.allReadRelaysNorm() return urls?.map { it.url } ?: emptyList() } diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 9b16da3617..69e86bd978 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -668,13 +668,22 @@ class MarmotManager( * list, so a commit's acknowledgement has to come from an endpoint the * GROUP names — the same set every other member is listening on. */ - fun groupRelays(nostrGroupId: HexKey): List = - groupManager - .getGroup(nostrGroupId) - ?.currentMarmotData() - ?.relays - .orEmpty() - .mapNotNull { RelayUrlNormalizer.normalizeOrNull(it) } + fun groupRelays(nostrGroupId: HexKey): List { + val group = groupManager.getGroup(nostrGroupId) ?: return emptyList() + // A current-profile group routes through `marmot.transport.nostr.routing.v1` + // (`0x8004`); only a legacy group carries its relays in the `0xF2EE` + // group-data extension. Reading just the legacy one left every + // current-profile group with an empty recipient scope, so its commits + // had nowhere to be acknowledged and never became canonical. + val routed = + group + .currentGroupState() + .routing + ?.relays + .orEmpty() + val legacy = group.currentMarmotData()?.relays.orEmpty() + return (routed + legacy).distinct().mapNotNull { RelayUrlNormalizer.normalizeOrNull(it) } + } /** * Nuke all local Marmot state — every MLS group, every retained epoch diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt index 08a287c417..f70baa4648 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt @@ -55,6 +55,13 @@ object CurrentProfileGroupFactory { * * `0x0001` is in the list because a client advertising `app_data_dictionary` * must understand and advertise `app_components` itself. + * + * This list is what decides which groups will accept us. A group states the + * components it REQUIRES, and a leaf that does not advertise every one of + * them is refused — so a component we implement but forget to list here is + * invisible, and one we list but do not implement is a lie that surfaces + * later as a group we cannot actually participate in. Add an id here only + * when the component is implemented. */ val SUPPORTED_COMPONENTS: List = listOf( @@ -65,6 +72,7 @@ object CurrentProfileGroupFactory { AppComponentIds.NOSTR_ROUTING_V1, AppComponentIds.MESSAGE_RETENTION_V1, AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2, + AppComponentIds.GROUP_ENCRYPTED_MEDIA_V2, AppComponentIds.GROUP_LIFECYCLE_V1, ) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip02Welcome/WelcomeEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip02Welcome/WelcomeEvent.kt index 552f9f07bf..38d70653d6 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip02Welcome/WelcomeEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip02Welcome/WelcomeEvent.kt @@ -89,7 +89,11 @@ class WelcomeEvent( ) = eventTemplate(KIND, welcomeBase64, createdAt) { keyPackageEventId(keyPackageEventId) welcomeRelays(relays) - encoding() + // No `encoding` tag. `transports/nostr.md`: "A sender MUST NOT add + // an `encoding` tag for any event shape in this document" — a + // receiver that switched decoders on one could be steered into a + // different parse of the same bytes, so the binding removes the + // negotiation entirely rather than defining it. nostrGroupId?.let { addUnique(arrayOf("h", it)) } initializer() } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip65RelayList/AdvertisedRelayListEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip65RelayList/AdvertisedRelayListEvent.kt index f17c9b57d1..8a619a021f 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip65RelayList/AdvertisedRelayListEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip65RelayList/AdvertisedRelayListEvent.kt @@ -47,10 +47,16 @@ class AdvertisedRelayListEvent( fun readRelaysNorm() = tags.mapNotNull(AdvertisedRelayInfo::parseReadNorm).ifEmpty { null } + /** Read-marked relays including local ones. For reading back OUR OWN list. */ + fun allReadRelaysNorm() = tags.mapNotNull(AdvertisedRelayInfo::parseReadNormUnfiltered).ifEmpty { null } + fun writeRelays() = tags.mapNotNull(AdvertisedRelayInfo::parseWrite).ifEmpty { null } fun writeRelaysNorm() = tags.mapNotNull(AdvertisedRelayInfo::parseWriteNorm).ifEmpty { null } + /** Write-marked relays including local ones. For reading back OUR OWN list. */ + fun allWriteRelaysNorm() = tags.mapNotNull(AdvertisedRelayInfo::parseWriteNormUnfiltered).ifEmpty { null } + companion object { const val KIND = 10002 const val ALT = "Relay list to discover the user's content" diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip65RelayList/tags/AdvertisedRelayInfoTag.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip65RelayList/tags/AdvertisedRelayInfoTag.kt index 0338fb9e71..ca6c9fe8e1 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip65RelayList/tags/AdvertisedRelayInfoTag.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip65RelayList/tags/AdvertisedRelayInfoTag.kt @@ -77,32 +77,49 @@ class AdvertisedRelayInfo( return tag[1] } - fun parseReadNorm(tag: Array): NormalizedRelayUrl? { + /** + * Read-marked relays, with local-network entries dropped. + * + * The drop is for lists that came from SOMEONE ELSE: a NIP-65 list is + * attacker-supplied input, an entry naming `127.0.0.1` or an RFC 1918 + * address would aim our connection at our own machine or LAN, and + * `isLocalHost` is also what exempts a relay from Tor. Use + * [parseReadNormUnfiltered] to read back a list this account published + * itself. + */ + fun parseReadNorm(tag: Array): NormalizedRelayUrl? = parseReadNormUnfiltered(tag)?.takeUnless { it.isLocalHost() } + + /** + * Read-marked relays including local ones, for reading back OUR OWN + * list. + * + * A user who configured a local relay meant it, and the filtered form + * reports their write set as empty — which every publisher then treats + * as "unconfigured" and answers with a default relay set the user never + * chose. + */ + fun parseReadNormUnfiltered(tag: Array): NormalizedRelayUrl? { ensure(tag.has(1) && tag[0] == TAG_NAME && tag[1].isNotEmpty()) { return null } if (tag.has(2)) { ensure(AdvertisedRelayType.isRead(tag[2])) { return null } } - val relay = RelayUrlNormalizer.normalizeOrNull(tag[1]) - - ensure(relay != null && !relay.isLocalHost()) { return null } - return RelayUrlNormalizer.normalizeOrNull(tag[1]) } - fun parseWriteNorm(tag: Array): NormalizedRelayUrl? { + /** Write-marked relays, local ones dropped. See [parseReadNorm]. */ + fun parseWriteNorm(tag: Array): NormalizedRelayUrl? = parseWriteNormUnfiltered(tag)?.takeUnless { it.isLocalHost() } + + /** Write-marked relays including local ones, for OUR OWN list. See [parseReadNormUnfiltered]. */ + fun parseWriteNormUnfiltered(tag: Array): NormalizedRelayUrl? { ensure(tag.has(1) && tag[0] == TAG_NAME && tag[1].isNotEmpty()) { return null } if (tag.has(2)) { ensure(AdvertisedRelayType.isWrite(tag[2])) { return null } } - val relay = RelayUrlNormalizer.normalizeOrNull(tag[1]) - - ensure(relay != null && !relay.isLocalHost()) { return null } - - return relay + return RelayUrlNormalizer.normalizeOrNull(tag[1]) } fun assemble( diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotMipBehaviorTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotMipBehaviorTest.kt index 2dcb186e0e..3d56e8839d 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotMipBehaviorTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotMipBehaviorTest.kt @@ -355,9 +355,15 @@ class MarmotMipBehaviorTest { assertEquals(WelcomeEvent.KIND, rumor.kind, "Innermost rumor MUST be kind:444") assertEquals("", rumor.sig, "MIP-02: kind:444 rumor MUST NOT carry a signature") - val encodingTag = rumor.tags.find { it.isNotEmpty() && it[0] == "encoding" } - assertNotNull(encodingTag, "MIP-02: rumor MUST carry [encoding, base64]") - assertEquals("base64", encodingTag[1]) + // The MIP-era rule required an `encoding` tag here. The adopted + // binding REVERSES it: "A sender MUST NOT add an `encoding` tag for + // any event shape in this document." Byte encoding is fixed per + // field, so a negotiated one only gives a receiver a way to be + // steered into a different parse of the same bytes. + assertNull( + rumor.tags.find { it.isNotEmpty() && it[0] == "encoding" }, + "transports/nostr.md: a kind:444 rumor MUST NOT carry an encoding tag", + ) val eTag = rumor.tags.find { it.isNotEmpty() && it[0] == "e" } assertNotNull(eTag, "MIP-02: rumor MUST carry [e, ]") From 36c73fd65412b7b5cebe30d10c58ab31b5394153 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 03:01:17 +0000 Subject: [PATCH 20/79] fix(marmot): a Commit must not rebuild our own leaf from defaults MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A Commit replaces the committer's leaf through the UpdatePath. It is the same member with new key material, so everything the leaf says about the member has to survive — but `buildLeafNode` was called without either `capabilities` or `leafExtensions`, so it fell through to the legacy defaults every time. That cost us every invitation we have ever sent to MDK. A current-profile leaf carries `marmot.member.account-identity-proof.v2` inside an `app_data_dictionary` LEAF extension, and no proposal can put a leaf extension back, so our very first Commit silently demoted the group creator out of the current profile. The rebuilt leaf also stopped advertising the `app_data_dictionary` extension (0x0006) and the `app_data_update` proposal (0x0008) that the group's own `required_capabilities` demands, which makes the resulting tree fail RFC 9420 §7.3 leaf validation for every receiver. MDK reported `PublicGroupError(LeafNodeValidation(UnsupportedExtensions))` and dropped the Welcome minted by that same commit — the invitee simply never saw an invite, with nothing logged on either side. The same omission was in `proposeSigningKeyRotation`, where an Update proposal replaces our leaf for forward secrecy, and in `externalJoin`, which had no way to express a current-profile joiner leaf at all. Verified against MDK 0.9.20 on the interop harness: before, the invitee's pending-invite list stayed empty; after, our group arrives with its routing, profile and admin policy intact. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- cli/tests/.gitignore | 1 + .../quartz/marmot/mls/group/MlsGroup.kt | 36 +++++- .../MdkKeyPackageRoundTripTest.kt | 80 ++++++++++++ .../group/CommitPreservesLeafIdentityTest.kt | 118 ++++++++++++++++++ 4 files changed, 234 insertions(+), 1 deletion(-) create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/MdkKeyPackageRoundTripTest.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CommitPreservesLeafIdentityTest.kt diff --git a/cli/tests/.gitignore b/cli/tests/.gitignore index a74c7de8b8..363484739c 100644 --- a/cli/tests/.gitignore +++ b/cli/tests/.gitignore @@ -10,3 +10,4 @@ git/state-git-nip34/ buzz/state-job-loop/ buzz/state-workflow-loop/ buzz/state-agent-exec/ +marmot/state-repro/ diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index 79ca2a0c90..e48121953d 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -446,6 +446,9 @@ class MlsGroup private constructor( (currentLeaf?.credential as? Credential.Basic)?.identity ?: ByteArray(0) + // An Update replaces our leaf with fresh key material and nothing + // else. Capabilities and leaf extensions (the account identity proof + // among them) describe the member, not the keys, so they carry over. val newLeafNode = buildLeafNode( encryptionKey = newEncKp.publicKey, @@ -455,6 +458,8 @@ class MlsGroup private constructor( signingKey = newSigKp.privateKey, groupId = groupId, leafIndex = myLeafIndex, + capabilities = currentLeaf?.capabilities ?: marmotLeafCapabilities(), + leafExtensions = currentLeaf?.extensions ?: emptyList(), ) val proposal = Proposal.Update(newLeafNode) @@ -694,18 +699,35 @@ class MlsGroup private constructor( // signature we mint fails to verify. val effectiveSigningKey = pendingSigningKey ?: signingPrivateKey val newEncKp = X25519.generateKeyPair() + // RFC 9420 §7.1: an UpdatePath leaf REPLACES our leaf. It is + // the same member, so everything about that member that is not + // key material carries over — capabilities and the leaf + // extensions. Rebuilding from defaults instead is not a + // cosmetic loss: a current-profile leaf keeps its + // `account-identity-proof` in an `app_data_dictionary` LEAF + // extension, and that extension can never be re-added by a + // proposal, so dropping it here silently demotes us out of the + // current profile at our very first commit. It also drops the + // `app_data_dictionary` capability the group's own + // `required_capabilities` demands, which makes the resulting + // tree fail RFC 9420 §7.3 leaf validation for every receiver — + // openmls reports `LeafNodeValidation(UnsupportedExtensions)` + // and the Welcome we just minted is unjoinable. + val previousLeaf = tree.getLeaf(myLeafIndex) val newLeafNode = buildLeafNode( encryptionKey = newEncKp.publicKey, signatureKey = Ed25519.publicFromPrivate(effectiveSigningKey), identity = - (tree.getLeaf(myLeafIndex)?.credential as? Credential.Basic)?.identity + (previousLeaf?.credential as? Credential.Basic)?.identity ?: ByteArray(0), source = LeafNodeSource.COMMIT, signingKey = effectiveSigningKey, groupId = groupId, leafIndex = myLeafIndex, parentHash = leafParentHash, + capabilities = previousLeaf?.capabilities ?: marmotLeafCapabilities(), + leafExtensions = previousLeaf?.extensions ?: emptyList(), ) encryptionPrivateKey = newEncKp.privateKey tree.setLeaf(myLeafIndex, newLeafNode) @@ -3583,6 +3605,12 @@ class MlsGroup private constructor( * @param groupInfoBytes TLS-serialized GroupInfo * @param identity the joiner's identity * @param signingKey optional Ed25519 signing key (generated if null) + * @param capabilities the joiner leaf's capabilities. A current-profile + * join MUST pass [currentProfileLeafCapabilities]; the default only + * satisfies a legacy group's `required_capabilities`. + * @param leafExtensions the joiner leaf's extensions. A current-profile + * join MUST pass the `app_data_dictionary` carrying its account + * identity proof — leaf extensions cannot be added after the fact. * @return the new MlsGroup along with the raw inner commit bytes and a * wire-ready PublicMessage envelope. Existing group members consume * the framed bytes via [MlsGroup.processFramedCommit]. @@ -3591,6 +3619,8 @@ class MlsGroup private constructor( groupInfoBytes: ByteArray, identity: ByteArray, signingKey: ByteArray? = null, + capabilities: Capabilities = marmotLeafCapabilities(), + leafExtensions: List = emptyList(), ): ExternalJoinResult { val groupInfo = GroupInfo.decodeTls(TlsReader(groupInfoBytes)) val groupContext = groupInfo.groupContext @@ -3655,6 +3685,8 @@ class MlsGroup private constructor( signingKey = sigKp.privateKey, groupId = groupContext.groupId, leafIndex = tree.leafCount, + capabilities = capabilities, + leafExtensions = leafExtensions, ) val myLeafIndex = tree.addLeaf(placeholderLeaf) @@ -3717,6 +3749,8 @@ class MlsGroup private constructor( groupId = groupContext.groupId, leafIndex = myLeafIndex, parentHash = extLeafParentHash, + capabilities = capabilities, + leafExtensions = leafExtensions, ) tree.setLeaf(myLeafIndex, leafNode) diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/MdkKeyPackageRoundTripTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/MdkKeyPackageRoundTripTest.kt new file mode 100644 index 0000000000..37d972dd98 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/MdkKeyPackageRoundTripTest.kt @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip00KeyPackages + +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlin.io.encoding.Base64 +import kotlin.io.encoding.ExperimentalEncodingApi +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals + +/** + * A KeyPackage we did not author has to survive decode -> re-encode byte for + * byte, because the KeyPackageRef that names the joining member in a Welcome is + * `RefHash("MLS 1.0 KeyPackage Reference", serialize(KeyPackage))` over exactly + * those bytes. The invitee looks its private bundle up by that hash. One byte + * of drift anywhere in the struct -- a dropped extension, a reordered + * dictionary entry, a differently-sized length prefix -- and the Welcome names + * a KeyPackage nobody has, so the invitee silently has nothing to join with. + * + * The fixture is a real KeyPackage published by MDK 0.9.20 (`wn`), captured off + * the interop harness relay. + */ +@OptIn(ExperimentalEncodingApi::class) +class MdkKeyPackageRoundTripTest { + private val mdkFramedKeyPackage = "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" + + @Test + fun reEncodesAnMdkKeyPackageByteForByte() { + val framed = Base64.decode(mdkFramedKeyPackage) + val keyPackage = KeyPackageUtils.decodeKeyPackage(framed) + + // The framed publication is 4 bytes of MLSMessage header plus the + // KeyPackage struct; compare against the payload, not the envelope. + val payload = framed.copyOfRange(4, framed.size) + assertContentEquals(payload, keyPackage.toTlsBytes()) + } + + @Test + fun reFramesToTheExactBytesMdkPublished() { + val framed = Base64.decode(mdkFramedKeyPackage) + val keyPackage = KeyPackageUtils.decodeKeyPackage(framed) + assertContentEquals(framed, KeyPackageUtils.frameKeyPackage(keyPackage)) + } + + /** + * The `i` tag MDK put on the publication is the KeyPackageRef MDK filed its + * own private bundle under. Recomputing it from the bytes we decoded is the + * end-to-end check: if these agree, a Welcome we address to this member + * names a KeyPackage the member can actually find. + */ + @Test + fun computesTheSameReferenceMdkAdvertised() { + val framed = Base64.decode(mdkFramedKeyPackage) + val keyPackage = KeyPackageUtils.decodeKeyPackage(framed) + assertEquals(MDK_ADVERTISED_REF, keyPackage.reference().toHexKey()) + } + + companion object { + private const val MDK_ADVERTISED_REF = "1e6606f8e154a0c148587c4334f801fbb7aaf5a806d8971a87961a58366844ef" + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CommitPreservesLeafIdentityTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CommitPreservesLeafIdentityTest.kt new file mode 100644 index 0000000000..101d0048eb --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CommitPreservesLeafIdentityTest.kt @@ -0,0 +1,118 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mls.group + +import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds +import com.vitorpamplona.quartz.marmot.appComponents.CurrentProfileGroupFactory +import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 +import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertContains +import kotlin.test.assertNotNull +import kotlin.test.assertTrue + +/** + * A Commit replaces the committer's own leaf through the UpdatePath. That leaf + * is the SAME member with new key material, so everything the leaf says about + * the member has to survive: its `capabilities`, and its extensions. + * + * Rebuilding from defaults instead cost us every invitation. A current-profile + * leaf carries `marmot.member.account-identity-proof.v2` inside an + * `app_data_dictionary` LEAF extension, and no proposal can put a leaf + * extension back, so the first Commit silently demoted the creator out of the + * current profile. Worse, the rebuilt leaf stopped advertising the + * `app_data_dictionary` extension and `app_data_update` proposal that the + * group's own `required_capabilities` demands, so the resulting tree failed + * RFC 9420 leaf validation for every receiver: MDK's openmls reported + * `LeafNodeValidation(UnsupportedExtensions)` and dropped the Welcome we had + * just minted from that same commit. + */ +class CommitPreservesLeafIdentityTest { + /** `app_data_update`, the proposal a current-profile group requires. */ + private val appDataUpdateProposalType = 0x0008 + + private fun signer(seed: Byte) = NostrSignerInternal(KeyPair(ByteArray(32) { seed })) + + private suspend fun aCurrentProfileGroup(): MlsGroup = + CurrentProfileGroupFactory.createGroup( + signer = signer(0x11), + nostrGroupId = ByteArray(32) { 0x22 }, + relays = listOf("wss://relay.example.com"), + profile = GroupProfileV1("Interop", ""), + ) + + private fun MlsGroup.myLeaf() = members().firstOrNull { it.first == leafIndex }?.second + + @Test + fun theCommitterLeafKeepsItsCurrentProfileCapabilities() = + runBlocking { + val group = aCurrentProfileGroup() + val before = assertNotNull(group.myLeaf()).capabilities + + val invitee = CurrentProfileGroupFactory.createKeyPackage(signer(0x33)) + group.proposeAdd(invitee.keyPackage.toTlsBytes()) + group.commit() + + val after = assertNotNull(group.myLeaf()).capabilities + assertContains(after.extensions, AppDataDictionary.EXTENSION_TYPE) + assertContains(after.proposals, appDataUpdateProposalType) + assertTrue(before.extensions.all { it in after.extensions }) + assertTrue(before.proposals.all { it in after.proposals }) + } + + @Test + fun theCommitterLeafKeepsItsAccountIdentityProof() = + runBlocking { + val group = aCurrentProfileGroup() + + val invitee = CurrentProfileGroupFactory.createKeyPackage(signer(0x33)) + group.proposeAdd(invitee.keyPackage.toTlsBytes()) + group.commit() + + val leaf = assertNotNull(group.myLeaf()) + val dictionary = + assertNotNull( + leaf.extensions.firstOrNull { it.extensionType == AppDataDictionary.EXTENSION_TYPE }, + ) + val decoded = AppDataDictionary.decode(dictionary.extensionData) + assertNotNull(decoded[AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2]) + } + + @Test + fun aSigningKeyRotationAlsoKeepsTheLeafIdentity() = + runBlocking { + val group = aCurrentProfileGroup() + val before = assertNotNull(group.myLeaf()) + + group.proposeSigningKeyRotation() + group.commit() + + val after = assertNotNull(group.myLeaf()) + assertContains(after.capabilities.extensions, AppDataDictionary.EXTENSION_TYPE) + assertTrue( + after.extensions.any { it.extensionType == AppDataDictionary.EXTENSION_TYPE }, + ) + assertTrue(before.extensions.size <= after.extensions.size) + } +} From cfd44c2108d1a2b971770468da369b4fc07fa5c9 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 03:21:11 +0000 Subject: [PATCH 21/79] test(marmot): read the JSON shapes MDK 0.9.x actually emits MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The harness was parsing a wire format `wn` no longer speaks, and every mismatch failed silently as "nothing arrived". `wn --json groups invites` now answers `{"ok":true,"result":{"account_id":…,"invites":[…],"npub":…}}`. The harness iterated `(.result // .) | .[]?`, which walks that object's three VALUES — two strings and an array — so `jq_group_id` matched nothing on every poll and the pending count printed 3 forever. Test 02 reported "B never received invite" for welcomes that had in fact arrived. Named collections moved the same way (`members`, `admins`, `messages`), per-entry id fields were renamed (`member_id`, `admin_id`, `message_id`), the decrypted body is `plaintext` rather than `content`, the group display name lives in the profile component (`.group.profile.name`), and `keys check` nests its event id under `.key_package`. Adds two helpers so this is fixed in one place rather than at 20 call sites: `jq_list ` peels the envelope and names the collection, and `jq_member_ids` reads whichever id field the collection uses. `jq_group_id` now searches `.result.group_id`, `.result.group.group_id` and the bare element shape, keeping the older serde encodings so a run against an older `wn` still reports a real mismatch instead of an empty string. Also fixes test 05, which fed wn's MLS group id to `amy marmot message send`; amy indexes by the MIP-01 nostr_group_id, which it only learns from its own `await group`. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- cli/tests/lib.sh | 88 ++++++++++++++++++++++---------- cli/tests/marmot/tests-create.sh | 13 +++-- cli/tests/marmot/tests-extras.sh | 29 +++++++---- cli/tests/marmot/tests-manage.sh | 16 ++++-- 4 files changed, 100 insertions(+), 46 deletions(-) diff --git a/cli/tests/lib.sh b/cli/tests/lib.sh index 8109f1076b..2bb3f00627 100644 --- a/cli/tests/lib.sh +++ b/cli/tests/lib.sh @@ -145,36 +145,66 @@ expect_contains() { # ------- JSON helpers -------------------------------------------------------- -# Extract MLS group ID as lowercase hex from wn JSON output. -# Handles both formats: -# - plain hex string (from `groups list`) -# - {"value":{"vec":[...]}} serde struct (from `groups create`) -# - flat byte array [n, ...] (from some responses) -# Plus the three wrapper shapes wn actually uses: -# - {"result": {"mls_group_id": ...}} (groups create) -# - {"group": {"mls_group_id": ...}, "membership": ...} (groups invites[0]) -# - {"mls_group_id": ...} (bare) -# Input: JSON string via stdin; optional 2nd arg = field name (default: mls_group_id) +# Extract an MLS group id as lowercase hex from `wn --json` output. +# +# MDK 0.9.x settled on one envelope, `{"ok":true,"result":{...}}`, but the +# group id sits at a different place per verb: +# groups create -> .result.group_id +# groups accept / rename -> .result.group.group_id +# groups invites[] -> .group_id (an element, already peeled) +# groups members/admins -> .result.group_id +# Older builds wrapped the id as a serde `{"value":{"vec":[...]}}` struct or a +# bare byte array; both are still decoded so a run against an older `wn` binary +# reports a real mismatch instead of an empty string. +# +# Input: JSON on stdin. Optional 1st arg overrides the field name. jq_group_id() { - local field="${1:-mls_group_id}" + local field="${1:-group_id}" jq -r --arg f "$field" ' def byte2hex: . as $n | [($n / 16 | floor), ($n % 16)] | map(if . < 10 then (48 + .) else (87 + .) end) | implode; - (.group // .result // .) | - (.group // .) | - .[$f] | - if type == "string" then . - elif (type == "object" and (.value.vec != null)) then - [.value.vec[] | byte2hex] | join("") - elif type == "array" then - [.[] | byte2hex] | join("") - else empty end + def as_hex: + if type == "string" then . + elif (type == "object" and (.value.vec != null)) then + [.value.vec[] | byte2hex] | join("") + elif type == "array" then + [.[] | byte2hex] | join("") + else empty end; + [ (.result? // empty), (.result?.group? // empty), (.group? // empty), . ] + | map(select(type == "object") | .[$f]? // empty | as_hex) + | map(select(. != null and . != "")) + | first // empty ' 2>/dev/null || true } +# Peel MDK 0.9.x's `{"ok":true,"result":{...}}` envelope and hand back the +# named collection as a JSON array. MDK moved every list one level in and gave +# it a name (`invites`, `members`, `admins`, `messages`), so a bare +# `(.result // .) | .[]?` now iterates the RESULT OBJECT'S VALUES — three +# scalars where the harness expected invite objects. That failure is silent: +# every poll simply never matches, and the test reports "never received +# invite" for a welcome that arrived and was accepted. +# +# Input: JSON on stdin, collection name as $1. +jq_list() { + local name="$1" + jq -c --arg n "$name" ' + [ (.result?[$n]? // empty), (.[$n]? // empty), (.result? // empty), . ] + | map(select(type == "array")) + | (first // []) + | .[] + ' 2>/dev/null || true +} + +# npub or hex pubkey of one member/admin entry. MDK names the field per +# collection: members carry `member_id`, admins carry `admin_id`. +jq_member_ids() { + jq -r '.member_id? // .admin_id? // .pubkey? // .public_key? // empty' 2>/dev/null || true +} + # ------- polling helpers ----------------------------------------------------- # Snapshot currently-pending invites on as a comma-separated list of @@ -197,7 +227,7 @@ snapshot_invites() { local g g=$(printf '%s' "$one" | jq_group_id) [[ -n "$g" ]] && gids+=("$g") - done < <(printf '%s' "$raw" | jq -c '(.result // .) | .[]?' 2>/dev/null) + done < <(printf '%s' "$raw" | jq_list invites) # bash 3.2 (stock macOS) treats "${gids[*]}" on an empty array as an # unbound reference under `set -u`, so guard the expansion. if (( ${#gids[@]} > 0 )); then @@ -228,9 +258,10 @@ wait_for_invite() { deadline=$(( start + timeout )) last_hb=$start while [[ $(date +%s) -lt $deadline ]]; do - # Post-v0.2 `wn --json groups invites` returns `{"result": [...]}` - # (older builds returned the bare array). Peel the wrapper when - # present so a pending invite is actually detected. + # MDK 0.9.x returns `{"ok":true,"result":{"invites":[...], …}}`. + # `jq_list` peels the envelope AND names the collection; iterating + # `.result` directly walks the sibling scalars instead and never + # matches. local raw raw=$("$wnfn" --json groups invites 2>/dev/null || true) # Walk every pending invite (not just .[0]) so we skip past stales. @@ -242,14 +273,14 @@ wait_for_invite() { printf '%s\n' "$gid" return 0 fi - done < <(printf '%s' "$raw" | jq -c '(.result // .) | .[]?' 2>/dev/null) + done < <(printf '%s' "$raw" | jq_list invites) # Heartbeat every ~10s. local now=$(date +%s) if (( now - last_hb >= 10 )); then local elapsed=$(( now - start )) remaining=$(( deadline - now )) local pending - pending=$(printf '%s' "$raw" | jq '(.result // .) | length' 2>/dev/null || echo "?") + pending=$(printf '%s' "$raw" | jq_list invites | wc -l | tr -d ' ') local recent="" if [[ -f "$data_dir/logs/stderr.log" ]]; then recent=$(tail -n 200 "$data_dir/logs/stderr.log" 2>/dev/null \ @@ -277,9 +308,10 @@ wait_for_message() { else payload=$(wn_c_json messages list "$gid" --limit 20 2>/dev/null || true) fi + # MDK 0.9.x: `.result.messages[]`, decrypted body in `plaintext`. if [[ -n "${payload:-}" ]] && \ - printf '%s' "$payload" | jq -e --arg n "$needle" \ - '(.result // .) | .[]? | select((.content // .text // "") | contains($n))' \ + printf '%s' "$payload" | jq_list messages | jq -e --arg n "$needle" \ + 'select((.plaintext // .content // .text // "") | contains($n))' \ >/dev/null 2>&1; then return 0 fi diff --git a/cli/tests/marmot/tests-create.sh b/cli/tests/marmot/tests-create.sh index b868380ef9..5cb2bb2036 100644 --- a/cli/tests/marmot/tests-create.sh +++ b/cli/tests/marmot/tests-create.sh @@ -184,12 +184,19 @@ test_05_b_adds_a_existing() { record_result "$id" fail "wn add-members A failed"; return } - # A joins - if ! amy_json marmot await group --name "Interop-05" --timeout 30 >/dev/null; then + # A joins. `gid` is wn's MLS group id; amy indexes by the MIP-01 + # nostr_group_id, which only exists locally once A has processed the + # welcome — so take amy's id from its own await, never wn's. + local a_out a_gid + a_out=$(amy_json marmot await group --name "Interop-05" --timeout 30) || { record_result "$id" fail "A never received invite to Interop-05"; return + } + a_gid=$(printf '%s' "$a_out" | jq -r '.group_id // empty') + if [[ -z "$a_gid" ]]; then + record_result "$id" fail "A joined Interop-05 but reported no group_id"; return fi - amy_json marmot message send "$gid" "joined from amethyst" >/dev/null || { + amy_json marmot message send "$a_gid" "joined from amethyst" >/dev/null || { record_result "$id" fail "amy send failed"; return } if wait_for_message B "$gid" "joined from amethyst" 90 \ diff --git a/cli/tests/marmot/tests-extras.sh b/cli/tests/marmot/tests-extras.sh index 0c3cbc33f3..e9781fc830 100644 --- a/cli/tests/marmot/tests-extras.sh +++ b/cli/tests/marmot/tests-extras.sh @@ -17,7 +17,8 @@ test_09_reply_react_unreact() { # B anchors. Needs a member to be present — if Test 11 already ran and A left, # skip cleanly so we don't double-fail. if ! wn_b --json groups members "$mls_gid" 2>/dev/null \ - | jq -e --arg p "$A_HEX" '(.result // .) | .[]? | select((.pubkey // .public_key) == $p)' \ + | jq_list members | jq -e --arg p "$A_HEX" \ + 'select((.member_id // .pubkey // .public_key) == $p)' \ >/dev/null 2>&1; then record_result "$id" skip "A already left GROUP_02"; return fi @@ -26,7 +27,9 @@ test_09_reply_react_unreact() { sleep 3 local msg_id msg_id=$(wn_b --json messages list "$mls_gid" --limit 10 2>/dev/null \ - | jq -r '[(.result // .) | .[]? | select((.content // .text // "") == "anchor for reactions")][0].id // empty') + | jq_list messages \ + | jq -r 'select((.plaintext // .content // .text // "") == "anchor for reactions") + | (.message_id // .id)' | head -n 1) if [[ -z "$msg_id" || "$msg_id" == "null" ]]; then record_result "$id" fail "couldn't find anchor message id"; return fi @@ -47,7 +50,9 @@ test_09_reply_react_unreact() { sleep 3 local a_anchor_id a_anchor_id=$(amy_json marmot message list "$gid" --limit 50 2>/dev/null \ - | jq -r '[.messages[]? | select((.content // "") == "anchor for reactions")][0].event_id // empty') + | jq_list messages \ + | jq -r 'select((.plaintext // .content // "") == "anchor for reactions") + | (.message_id // .event_id)' | head -n 1) if [[ -z "$a_anchor_id" || "$a_anchor_id" == "null" ]]; then record_result "$id" fail "amy couldn't find anchor message in local log"; return fi @@ -67,7 +72,7 @@ test_09_reply_react_unreact() { payload=$(wn_b_json messages list "$mls_gid" --limit 50 2>/dev/null || true) if [[ -n "$payload" ]] && \ printf '%s' "$payload" \ - | jq -e '(.result // .) | .[]? | (.reactions.by_emoji // {}) | keys[]?' \ + | jq_list messages | jq -e '(.reactions.by_emoji // {}) | keys[]?' \ 2>/dev/null \ | grep -qF '"🍕"'; then saw=1; break @@ -92,7 +97,8 @@ test_10_concurrent_commits() { record_result "$id" skip "no GROUP_02"; return fi if ! wn_b --json groups members "$mls_gid" 2>/dev/null \ - | jq -e --arg p "$A_HEX" '(.result // .) | .[]? | select((.pubkey // .public_key) == $p)' \ + | jq_list members | jq -e --arg p "$A_HEX" \ + 'select((.member_id // .pubkey // .public_key) == $p)' \ >/dev/null 2>&1; then record_result "$id" skip "A already left GROUP_02"; return fi @@ -110,7 +116,8 @@ test_10_concurrent_commits() { # whitenoise-rs ≥ v0.2.x wraps the group payload one level deeper as # `{"result": {"group": {…name…}}}`; the older shape was a bare group # object under `.result`. Accept both. - b_name=$(wn_b --json groups show "$mls_gid" 2>/dev/null | jq -r '(.result // .) | (.group // .) | .name // empty') + b_name=$(wn_b --json groups show "$mls_gid" 2>/dev/null \ + | jq -r '(.result // .) | (.group // .) | (.profile.name // .name) // empty') local a_name a_name=$(amy_field '.name' marmot group show "$gid" 2>/dev/null || echo "") @@ -194,7 +201,8 @@ test_13_keypackage_rotation() { local id="13 keypackage rotation" local before - before=$(wn_b --json keys check "$A_NPUB" 2>/dev/null | jq -r '.result.event_id // empty') + before=$(wn_b --json keys check "$A_NPUB" 2>/dev/null \ + | jq -r '.result.key_package.key_package_event_id // .result.event_id // empty') if [[ -z "$before" ]]; then record_result "$id" fail "no prior KP for A"; return fi @@ -205,7 +213,8 @@ test_13_keypackage_rotation() { local deadline=$(( $(date +%s) + 60 )) after="" while [[ $(date +%s) -lt $deadline ]]; do - after=$(wn_b --json keys check "$A_NPUB" 2>/dev/null | jq -r '.result.event_id // empty') + after=$(wn_b --json keys check "$A_NPUB" 2>/dev/null \ + | jq -r '.result.key_package.key_package_event_id // .result.event_id // empty') [[ -n "$after" && "$after" != "$before" ]] && break sleep 3 done @@ -323,9 +332,9 @@ test_15_wn_member_leaves() { local show show=$(amy_json marmot group show "$a_gid" 2>/dev/null) || { sleep 3; continue; } local c_still - c_still=$(printf '%s' "$show" | jq --arg p "$C_HEX" '[.members[]? | select(.pubkey == $p)] | length') + c_still=$(printf '%s' "$show" | jq --arg p "$C_HEX" '[.members[]? | select((.pubkey // .member_id) == $p)] | length') local a_still - a_still=$(printf '%s' "$show" | jq --arg p "$A_HEX" '[.members[]? | select(.pubkey == $p)] | length') + a_still=$(printf '%s' "$show" | jq --arg p "$A_HEX" '[.members[]? | select((.pubkey // .member_id) == $p)] | length') if [[ "$c_still" == "0" && "$a_still" == "1" ]]; then ok=1; break fi diff --git a/cli/tests/marmot/tests-manage.sh b/cli/tests/marmot/tests-manage.sh index 46fd29f63c..9a8fcf5fb1 100644 --- a/cli/tests/marmot/tests-manage.sh +++ b/cli/tests/marmot/tests-manage.sh @@ -28,7 +28,8 @@ test_06_member_removal() { local deadline=$(( $(date +%s) + 120 )) removed=0 while [[ $(date +%s) -lt $deadline ]]; do if ! wn_c --json groups members "$mls_gid" 2>/dev/null \ - | jq -e --arg p "$C_HEX" '(.result // .) | .[]? | select((.pubkey // .public_key) == $p)' \ + | jq_list members | jq -e --arg p "$C_HEX" \ + 'select((.member_id // .pubkey // .public_key) == $p)' \ >/dev/null 2>&1; then removed=1; break fi @@ -78,7 +79,10 @@ test_07_metadata_rename() { # `{"result": {"group": {…name…}}}`; older builds returned the bare # group object under `.result`. Probe both shapes so the test survives # either schema. - seen=$(wn_b --json groups show "$mls_gid" 2>/dev/null | jq -r '(.result // .) | (.group // .) | .name // empty') + # MDK 0.9.x keeps the display name in the profile component, not a + # top-level `name`: `.result.group.profile.name`. + seen=$(wn_b --json groups show "$mls_gid" 2>/dev/null \ + | jq -r '(.result // .) | (.group // .) | (.profile.name // .name) // empty') [[ "$seen" == "Interop-02-renamed" ]] && break sleep 3 done @@ -151,7 +155,7 @@ test_08_admin_promote_demote() { local admins admins=$(wn_b --json groups admins "$mls_gid" 2>/dev/null \ - | jq -r '(.result // .) | .[]?.pubkey // .[]?.public_key // .[]?' | tr '\n' ' ') + | jq_list admins | jq_member_ids | tr '\n' ' ') if [[ "$admins" == *"$A_HEX"* ]]; then record_result "$id" fail "A still admin after demote" else @@ -177,7 +181,8 @@ test_11_leave_group() { local deadline=$(( $(date +%s) + 120 )) gone=0 while [[ $(date +%s) -lt $deadline ]]; do if ! wn_b --json groups members "$mls_gid" 2>/dev/null \ - | jq -e --arg p "$A_HEX" '(.result // .) | .[]? | select((.pubkey // .public_key) == $p)' \ + | jq_list admins | jq -e --arg p "$A_HEX" \ + 'select((.admin_id // .pubkey // .public_key) == $p)' \ >/dev/null 2>&1; then gone=1; break fi @@ -218,7 +223,8 @@ test_17_group_image_commit() { # Skip cleanly if A is no longer a member of GROUP_02 (a later test may have removed # A) — this test only makes sense while A can still commit to the group. if ! wn_b --json groups members "$mls_gid" 2>/dev/null \ - | jq -e --arg p "$A_HEX" '(.result // .) | .[]? | select((.pubkey // .public_key) == $p)' \ + | jq_list members | jq -e --arg p "$A_HEX" \ + 'select((.member_id // .pubkey // .public_key) == $p)' \ >/dev/null 2>&1; then record_result "$id" skip "A not in GROUP_02"; return fi From 4a89d29f6c4584dc94d6f183dc1c87201098ac78 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 04:14:43 +0000 Subject: [PATCH 22/79] feat(marmot): implement agent-text-stream over QUIC (0x8006), receive role MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit MDK requires component `0x8006` in every group it creates, and its `required_member_roles` mask names MLS leaf capabilities each member must advertise. A client that carries neither is refused at the Add — which is why `wn groups create "Interop-03" ` failed outright, taking five interop scenarios with it. The `0xf2d1`/`0xf2d2`/`0xf2d4` extensions MDK advertises are exactly those role capabilities. Implements the component and the record layer it gates: - `AgentTextStreamQuicPolicyV1` — the 12-byte component state, decoded strictly (a short, long, or out-of-range payload is rejected, never defaulted: these bytes sit in signed group state and a guessed role mask admits a member the group refuses). - `AgentTextStreamRecordV1` — the wire record, with the QUIC varint length prefixes the Marmot binary profile uses. Unknown record types decode fine on purpose; a newer advisory record must not tear down an otherwise valid preview stream. - `AgentTextStreamCrypto` — HKDF-Expand-only key and nonce derivation over the full key context, `nonce_base XOR uint96_be(seq)`, and the record AAD. `seq` is in both the nonce and the AAD, so a replayed or reordered record fails to open rather than being noticed afterwards. - `AgentTextStreamTranscriptV1` — the rolling hash the final kind-9 chat publishes, so a receiver can tell that it saw exactly the stream the publisher sent. - `AgentTextStreamStart` / `AgentTextStreamFinal` — the kind-1200 anchor tags and the kind-9 closing tags. We advertise the RECEIVE role only, and the group state validator refuses a Welcome whose policy requires a role we do not advertise. Publishing would need durable per-stream sequence state to avoid reusing an AEAD nonce across a restart, and we have none — advertising `send` without it would be a claim we cannot keep. Also fixes three places that read only the legacy `0xF2EE` extension and therefore did nothing at all on a current-profile group: - The Welcome's `nostr_group_id`, which is the `h` tag every kind-445 event carries. Without it a joiner cannot subscribe, so MDK's welcome decrypted and was then discarded — "GroupContext is missing the NostrGroupData extension" — for a routing id that was present the whole time in the `0x8004` component. - The admin gate on GroupContextExtensions changes, which read `adminsConfigured` as false for every current-profile group and so skipped the check instead of failing closed. - Disappearing-message expiration, which silently never applied. And `syncMetadataTo`, which left every current-profile group with a blank name, no admins, no relays and no avatar in the UI. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../com/vitorpamplona/amethyst/cli/Context.kt | 4 +- .../cli/commands/GroupAddMemberCommand.kt | 11 +- .../amethyst/commons/marmot/MarmotManager.kt | 63 +++- .../quartz/marmot/MarmotOutboundProcessor.kt | 20 +- .../quartz/marmot/RecipientRelayFetcher.kt | 15 +- .../CurrentProfileGroupFactory.kt | 12 + .../marmot/appComponents/MarmotGroupState.kt | 11 + .../agentTextStream/AgentTextStreamCrypto.kt | 180 +++++++++ .../AgentTextStreamQuicPolicyV1.kt | 232 ++++++++++++ .../AgentTextStreamRecordV1.kt | 171 +++++++++ .../agentTextStream/AgentTextStreamStart.kt | 128 +++++++ .../AgentTextStreamTranscriptV1.kt | 101 +++++ .../agentTextStream/QuicVarInt.kt | 99 +++++ .../quartz/marmot/mls/group/MlsGroup.kt | 83 ++++- .../marmot/mls/group/MlsGroupManager.kt | 38 +- .../CurrentProfileGroupFactoryTest.kt | 23 +- .../agentTextStream/AgentTextStreamTest.kt | 346 ++++++++++++++++++ .../mls/group/CurrentProfileWelcomeTest.kt | 139 +++++++ 18 files changed, 1629 insertions(+), 47 deletions(-) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamCrypto.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamQuicPolicyV1.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamRecordV1.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamStart.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamTranscriptV1.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/QuicVarInt.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamTest.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt index a25ee4d8e1..e8c3c44946 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt @@ -798,10 +798,12 @@ class Context( val kp = keyPackageRelaysOf(pubKey) val nip65 = relaysOf(pubKey) if (dm == null && kp == null && nip65 == null) return null + val dmInbox = dm?.relays().orEmpty() return RecipientRelayFetcher.Lists( - dmInbox = dm?.relays().orEmpty(), + dmInbox = dmInbox, keyPackage = kp?.relays().orEmpty(), nip65 = nip65, + dmInboxWithheld = dmInbox.isEmpty() && dm?.allRelays().orEmpty().isNotEmpty(), ) } diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupAddMemberCommand.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupAddMemberCommand.kt index 8732186e47..478a14fd78 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupAddMemberCommand.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupAddMemberCommand.kt @@ -127,9 +127,17 @@ object GroupAddMemberCommand { // bootstrapped Amethyst accounts listen on these) // Our own outbox is added as belt-and-braces so we // can re-ingest the welcome ourselves too. + // + // The default set is a bootstrap for someone who has + // advertised NOTHING, not a fallback for someone whose + // advertised inbox we declined to use. When they named + // a local-network relay we refuse to reach, sending + // their invite to a public default set instead is a + // different action than they asked for — so we keep it + // on the group's own relays and say so. buildSet { addAll(recipient.dmInboxOrFallback()) - if (isEmpty()) { + if (isEmpty() && !recipient.dmInboxWithheld) { addAll(DefaultDMRelayList) } addAll(ctx.outboxRelays()) @@ -154,6 +162,7 @@ object GroupAddMemberCommand { "commit_accepted_by" to commitAck.filterValues { it.accepted }.keys.map { it.url }, "welcome_accepted_by" to welcomeAck.filterValues { it.accepted }.keys.map { it.url }, "welcome_targets" to welcomeTargets.map { it.url }, + "welcome_inbox_withheld" to recipient.dmInboxWithheld, "key_package_relays" to kpRelays.map { it.url }, ), ) diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 69e86bd978..a2e8ecfc9c 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -32,6 +32,7 @@ import com.vitorpamplona.quartz.marmot.WelcomeDelivery import com.vitorpamplona.quartz.marmot.WelcomeResult import com.vitorpamplona.quartz.marmot.appComponents.CurrentProfileGroupFactory import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 +import com.vitorpamplona.quartz.marmot.appComponents.MarmotGroupState import com.vitorpamplona.quartz.marmot.appComponents.MessageRetentionV1 import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageEvent @@ -1011,6 +1012,13 @@ class MarmotManager( return MarmotGroupData.fromExtensions(group.extensions) } + /** + * The current profile's GroupContext components for a group, or null when + * the group is unknown. A legacy group returns a state whose component + * fields are all null — read [groupMetadata] for those. + */ + fun groupState(nostrGroupId: HexKey): MarmotGroupState? = groupManager.getGroup(nostrGroupId)?.currentGroupState() + /** * Sync MIP-01 metadata and member info from the MLS group into a [MarmotGroupChatroom]. * Call after joining a group, processing a commit, or restoring from storage. @@ -1019,27 +1027,44 @@ class MarmotManager( nostrGroupId: HexKey, chatroom: MarmotGroupChatroom, ) { - val metadata = groupMetadata(nostrGroupId) - if (metadata != null) { - if (metadata.name.isNotEmpty()) { - chatroom.displayName.value = metadata.name - } - if (metadata.description.isNotEmpty()) { - chatroom.description.value = metadata.description - } - chatroom.adminPubkeys.value = metadata.adminPubkeys - chatroom.relays.value = metadata.relays - chatroom.image.value = - if (metadata.hasImage()) { + // Read the current profile's components first, then the legacy + // 0xF2EE extension. Reading only the legacy one left every + // current-profile group with a blank name, no admins, no relays and no + // avatar in the UI — the group worked, it just looked empty. + val state = groupState(nostrGroupId) + val legacy = groupMetadata(nostrGroupId) + + val name = state?.profile?.name?.takeIf { it.isNotEmpty() } ?: legacy?.name + if (!name.isNullOrEmpty()) chatroom.displayName.value = name + + val description = state?.profile?.description?.takeIf { it.isNotEmpty() } ?: legacy?.description + if (!description.isNullOrEmpty()) chatroom.description.value = description + + val admins = state?.adminPolicy?.adminHexKeys ?: legacy?.adminPubkeys + if (admins != null) chatroom.adminPubkeys.value = admins + + val relays = state?.routing?.relays ?: legacy?.relays + if (relays != null) chatroom.relays.value = relays + + val image = state?.image + chatroom.image.value = + when { + image?.imageHash != null -> MarmotGroupImage( - hash = metadata.imageHash!!, - key = metadata.imageKey!!, - nonce = metadata.imageNonce!!, + hash = image.imageHash!!.toHexKey(), + key = image.imageKey!!, + nonce = image.imageNonce!!, ) - } else { - null - } - } + + legacy?.hasImage() == true -> + MarmotGroupImage( + hash = legacy.imageHash!!, + key = legacy.imageKey!!, + nonce = legacy.imageNonce!!, + ) + + else -> null + } val previousCount = chatroom.members.value.size val members = memberPubkeys(nostrGroupId) chatroom.members.value = members diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotOutboundProcessor.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotOutboundProcessor.kt index a73888bef6..4674d4bfbd 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotOutboundProcessor.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotOutboundProcessor.kt @@ -210,9 +210,21 @@ class MarmotOutboundProcessor( nostrGroupId: HexKey, createdAt: Long, ): Long? { - val extensions = groupManager.getGroup(nostrGroupId)?.extensions ?: return null - val marmotData = MarmotGroupData.fromExtensions(extensions) ?: return null - val secs = marmotData.disappearingMessageSecs ?: return null - return createdAt + secs.toLong() + val group = groupManager.getGroup(nostrGroupId) ?: return null + // The current profile carries retention in the 0x8005 component; the + // legacy profile in the monolithic 0xF2EE extension. Reading only the + // legacy one silently dropped the expiration tag on every + // current-profile group, so disappearing messages simply did not + // disappear. + val secs = + group + .currentGroupState() + .retention + ?.takeIf { it.isEnabled } + ?.disappearingMessageSecs + ?.toLong() + ?: MarmotGroupData.fromExtensions(group.extensions)?.disappearingMessageSecs?.toLong() + ?: return null + return createdAt + secs } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/RecipientRelayFetcher.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/RecipientRelayFetcher.kt index 21d9778a2a..846b6c1237 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/RecipientRelayFetcher.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/RecipientRelayFetcher.kt @@ -53,6 +53,17 @@ object RecipientRelayFetcher { val keyPackage: List, /** Latest kind:10002 the user published (null if none seen). */ val nip65: AdvertisedRelayListEvent?, + /** + * True when the user DID advertise a kind:10050 inbox but every entry + * was dropped by the local-network filter, leaving [dmInbox] empty. + * + * "Advertised nothing" and "advertised only relays we refuse to reach" + * are different facts, and the caller has to be able to tell them + * apart. Treating the second as the first sends a gift wrap addressed + * to this user to a default relay set they never chose — the opposite + * of what the filter is for. + */ + val dmInboxWithheld: Boolean = false, ) { /** Read-marker relays from kind:10002. Mirrors `User.inboxRelays()`. */ fun nip65Read(): List = nip65?.readRelaysNorm().orEmpty() @@ -125,10 +136,12 @@ object RecipientRelayFetcher { } } + val dmInbox = dm?.relays().orEmpty() return Lists( - dmInbox = dm?.relays().orEmpty(), + dmInbox = dmInbox, keyPackage = kp?.relays().orEmpty(), nip65 = nip65, + dmInboxWithheld = dmInbox.isEmpty() && dm?.allRelays().orEmpty().isNotEmpty(), ) } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt index f70baa4648..6f8ec036ef 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt @@ -21,6 +21,7 @@ package com.vitorpamplona.quartz.marmot.appComponents import com.vitorpamplona.quartz.marmot.appComponents.accountIdentityProof.AccountIdentityProofV2 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamQuicPolicyV1 import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary import com.vitorpamplona.quartz.marmot.mls.components.ComponentData @@ -62,6 +63,14 @@ object CurrentProfileGroupFactory { * invisible, and one we list but do not implement is a lie that surfaces * later as a group we cannot actually participate in. Add an id here only * when the component is implemented. + * + * `0x8006` (agent-text-stream over QUIC) is listed for the RECEIVE role + * only, which is what [MlsGroup.currentProfileLeafCapabilities] advertises: + * we decode the group's policy, derive the per-stream record keys, open + * records and fold the transcript. We do not advertise the `send` + * (`0xF2D2`) or `fanout` (`0xF2D4`) capabilities, because publishing needs + * durable per-stream sequence state to avoid reusing an AEAD nonce across + * a restart, and we have none. */ val SUPPORTED_COMPONENTS: List = listOf( @@ -71,6 +80,7 @@ object CurrentProfileGroupFactory { AppComponentIds.ADMIN_POLICY_V1, AppComponentIds.NOSTR_ROUTING_V1, AppComponentIds.MESSAGE_RETENTION_V1, + AppComponentIds.AGENT_TEXT_STREAM_QUIC_V1, AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2, AppComponentIds.GROUP_ENCRYPTED_MEDIA_V2, AppComponentIds.GROUP_LIFECYCLE_V1, @@ -166,6 +176,7 @@ object CurrentProfileGroupFactory { profile: GroupProfileV1? = null, additionalAdmins: List = emptyList(), retention: MessageRetentionV1? = null, + agentTextStream: AgentTextStreamQuicPolicyV1? = null, ciphersuite: MlsCiphersuite = MlsCiphersuite.DEFAULT, ): MlsGroup { val identity = signer.pubKey.hexToByteArray() @@ -178,6 +189,7 @@ object CurrentProfileGroupFactory { profile = profile, retention = retention, lifecycle = GroupLifecycleV1.ACTIVE, + agentTextStream = agentTextStream, ) return MlsGroup.create( diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt index 550e4100b2..358a75dab3 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt @@ -20,6 +20,7 @@ */ package com.vitorpamplona.quartz.marmot.appComponents +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamQuicPolicyV1 import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary import com.vitorpamplona.quartz.marmot.mls.components.ComponentsList import com.vitorpamplona.quartz.marmot.mls.tree.Extension @@ -57,6 +58,7 @@ data class MarmotGroupState( val image: GroupBlossomImageV1?, val retention: MessageRetentionV1?, val lifecycle: GroupLifecycleV1?, + val agentTextStream: AgentTextStreamQuicPolicyV1?, ) { /** True once a disband Commit has been applied. Absorbing and terminal. */ val isDisbanded: Boolean get() = lifecycle == GroupLifecycleV1.DISBANDED @@ -99,6 +101,10 @@ data class MarmotGroupState( image = dictionary[GroupBlossomImageV1.COMPONENT_ID]?.let { GroupBlossomImageV1.decode(it) }, retention = dictionary[MessageRetentionV1.COMPONENT_ID]?.let { MessageRetentionV1.decode(it) }, lifecycle = dictionary[GroupLifecycleV1.COMPONENT_ID]?.let { GroupLifecycleV1.decode(it) }, + agentTextStream = + dictionary[AgentTextStreamQuicPolicyV1.COMPONENT_ID]?.let { + AgentTextStreamQuicPolicyV1.decode(it) + }, ) fun fromExtensions(extensions: List): MarmotGroupState = fromDictionary(AppDataDictionary.fromExtensionsOrEmpty(extensions)) @@ -117,6 +123,7 @@ data class MarmotGroupState( image: GroupBlossomImageV1? = null, retention: MessageRetentionV1? = null, lifecycle: GroupLifecycleV1? = GroupLifecycleV1.ACTIVE, + agentTextStream: AgentTextStreamQuicPolicyV1? = null, extraRequiredComponents: Collection = emptyList(), ): AppDataDictionary { var dictionary = AppDataDictionary.EMPTY @@ -145,6 +152,10 @@ data class MarmotGroupState( required.add(GroupLifecycleV1.COMPONENT_ID) dictionary = dictionary.with(GroupLifecycleV1.COMPONENT_ID, it.encode()) } + agentTextStream?.let { + required.add(AgentTextStreamQuicPolicyV1.COMPONENT_ID) + dictionary = dictionary.with(AgentTextStreamQuicPolicyV1.COMPONENT_ID, it.encode()) + } return dictionary.with(ComponentsList.APP_COMPONENTS_ID, ComponentsList.encode(required)) } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamCrypto.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamCrypto.kt new file mode 100644 index 0000000000..f42e44e7e7 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamCrypto.kt @@ -0,0 +1,180 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents.agentTextStream + +import com.vitorpamplona.quartz.marmot.mls.crypto.MlsCryptoProvider +import com.vitorpamplona.quartz.nip44Encryption.crypto.ChaCha20Poly1305 + +/** + * The context every agent-text-stream key derivation is bound to. + * + * ``` + * len("v1") || "v1" || len(group_id) || group_id || len(stream_id) || stream_id + * || mls_epoch (uint64) || len(sender_id) || sender_id + * || len(start_event_id) || start_event_id + * ``` + * + * The whole tuple goes into the HKDF info, which is what separates two streams + * that share one group exporter secret: change the stream, the epoch, the + * sender or the anchoring kind-1200 event and the record key changes with it. + */ +class AgentTextStreamKeyContextV1( + val groupId: ByteArray, + val streamId: ByteArray, + val mlsEpoch: Long, + val senderId: ByteArray, + val startEventId: ByteArray, +) { + fun encode(): ByteArray { + val out = ArrayList() + out.addLengthPrefixed(VERSION) + out.addLengthPrefixed(groupId) + out.addLengthPrefixed(streamId) + for (i in 7 downTo 0) out.add((mlsEpoch shr (8 * i)).toByte()) + out.addLengthPrefixed(senderId) + out.addLengthPrefixed(startEventId) + return out.toByteArray() + } + + companion object { + val VERSION = "v1".encodeToByteArray() + } +} + +/** + * Per-stream record AEAD. + * + * The stream secret is the group's `MLS-Exporter("marmot", + * "agent-text-stream-quic", 32)`, so every member of the epoch can derive it; + * per-stream and per-record separation comes entirely from the key context and + * the sequence number: + * + * - key = `HKDF-Expand(secret, len("record key") || "record key" || context, 32)` + * - nonce = `HKDF-Expand(secret, len("record nonce") || "record nonce" || context, 12)` + * XOR the 96-bit big-endian sequence number + * - aad = `version || SHA-256(group_id) || len(stream_id) || stream_id || + * mls_epoch || len(sender_id) || sender_id || seq || record_type || flags` + * + * HKDF-**Expand** with no Extract: the exporter secret is already a uniformly + * random PRK, so extracting again would only discard entropy. + */ +class AgentTextStreamCrypto( + val streamSecret: ByteArray, + val context: AgentTextStreamKeyContextV1, +) { + init { + require(streamSecret.size == SECRET_LENGTH) { "agent text stream secret must be $SECRET_LENGTH bytes" } + require(context.streamId.size == AgentTextStreamRecordV1.PROFILE_STREAM_ID_LEN) { + "agent text stream id must be ${AgentTextStreamRecordV1.PROFILE_STREAM_ID_LEN} bytes" + } + require(context.startEventId.size == AgentTextStreamRecordV1.START_EVENT_ID_LEN) { + "agent text stream start event id must be ${AgentTextStreamRecordV1.START_EVENT_ID_LEN} bytes" + } + } + + fun recordKey(): ByteArray = derive(KEY_LABEL, KEY_LENGTH) + + /** `nonce_base` XOR uint96_be(seq); `seq = 0` yields `nonce_base` itself. */ + fun recordNonce(seq: Long): ByteArray { + val nonce = derive(NONCE_LABEL, NONCE_LENGTH) + // uint96_be(seq): the top 4 of the 12 bytes stay zero for any uint64. + for (i in 0 until 8) { + nonce[NONCE_LENGTH - 1 - i] = (nonce[NONCE_LENGTH - 1 - i].toInt() xor (seq shr (8 * i)).toInt()).toByte() + } + return nonce + } + + fun recordAad(record: AgentTextStreamRecordV1): ByteArray { + val out = ArrayList() + out.add(AgentTextStreamRecordV1.VERSION.toByte()) + for (b in MlsCryptoProvider.hash(context.groupId)) out.add(b) + out.addLengthPrefixed(record.streamId) + for (i in 7 downTo 0) out.add((context.mlsEpoch shr (8 * i)).toByte()) + out.addLengthPrefixed(context.senderId) + for (i in 7 downTo 0) out.add((record.seq shr (8 * i)).toByte()) + out.add(record.recordType.toByte()) + out.add(record.flags.toByte()) + return out.toByteArray() + } + + /** Encrypt [record]'s plaintext frame in place, returning the wire record. */ + fun seal( + record: AgentTextStreamRecordV1, + maxPlaintextFrameLen: Long = AgentTextStreamQuicPolicyV1.MAX_PLAINTEXT_FRAME_LEN, + ): AgentTextStreamRecordV1 { + requireSameStream(record) + require(record.frame.size <= maxPlaintextFrameLen) { + "agent text stream plaintext frame is larger than the group's limit" + } + return record.copyWithFrame( + ChaCha20Poly1305.encrypt(record.frame, recordAad(record), recordNonce(record.seq), recordKey()), + ) + } + + /** Decrypt a wire record, returning it with its plaintext frame. */ + fun open(record: AgentTextStreamRecordV1): AgentTextStreamRecordV1 { + requireSameStream(record) + require(record.frame.size >= AgentTextStreamRecordV1.AEAD_TAG_LEN) { + "encrypted agent text stream frame is shorter than the AEAD tag" + } + return record.copyWithFrame( + ChaCha20Poly1305.decrypt(record.frame, recordAad(record), recordNonce(record.seq), recordKey()), + ) + } + + fun openOrNull(record: AgentTextStreamRecordV1): AgentTextStreamRecordV1? = + try { + open(record) + } catch (_: IllegalArgumentException) { + null + } catch (_: IllegalStateException) { + null + } + + private fun requireSameStream(record: AgentTextStreamRecordV1) { + require(record.streamId.contentEquals(context.streamId)) { + "agent text stream record belongs to a different stream than its key context" + } + } + + private fun derive( + label: ByteArray, + length: Int, + ): ByteArray { + val info = ArrayList() + info.addLengthPrefixed(label) + for (b in context.encode()) info.add(b) + return MlsCryptoProvider.hkdfExpand(streamSecret, info.toByteArray(), length) + } + + companion object { + const val SECRET_LENGTH = 32 + const val KEY_LENGTH = 32 + const val NONCE_LENGTH = 12 + + /** `MLS-Exporter("marmot", "agent-text-stream-quic", 32)`. */ + const val EXPORTER_LABEL = "marmot" + val EXPORTER_CONTEXT = "agent-text-stream-quic".encodeToByteArray() + + private val KEY_LABEL = "record key".encodeToByteArray() + private val NONCE_LABEL = "record nonce".encodeToByteArray() + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamQuicPolicyV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamQuicPolicyV1.kt new file mode 100644 index 0000000000..4ccaae6604 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamQuicPolicyV1.kt @@ -0,0 +1,232 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents.agentTextStream + +import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds +import com.vitorpamplona.quartz.marmot.mls.components.ComponentData + +/** + * `marmot.group.agent-text-stream.quic.v1` (component `0x8006`). + * + * A group carrying this component streams an agent's text as it is produced, + * over QUIC, out of band from the kind-445 group timeline; a kind-1200 event + * anchors each stream and a kind-9 chat carries its final transcript. The + * component itself is only the group's POLICY for those streams: which member + * roles are required and allowed, and the record bounds every participant + * enforces. + * + * Twelve bytes, fixed: + * + * ``` + * required_member_roles uint8 + * allowed_member_roles uint8 + * max_plaintext_frame_len uint32 + * replay_ttl_secs uint32 + * padding_bucket_bytes uint16 + * ``` + * + * The role masks are the reason this component cannot be treated as opaque + * bytes. `required_member_roles` names MLS leaf capabilities every member MUST + * advertise ([AgentTextStreamRoles.capabilityFor]), so a group requiring + * `receive` refuses to add a leaf that does not advertise `0xF2D1` — which is + * exactly how an implementation that ignores this component gets locked out of + * every group that carries it. + */ +class AgentTextStreamQuicPolicyV1( + val requiredMemberRoles: Int, + val allowedMemberRoles: Int, + val maxPlaintextFrameLen: Long, + val replayTtlSecs: Long, + val paddingBucketBytes: Int, +) { + init { + require(requiredMemberRoles != 0) { "required agent text stream roles cannot be empty" } + require(requiredMemberRoles and AgentTextStreamRoles.MASK.inv() == 0) { + "required agent text stream role mask contains unknown bits" + } + require(allowedMemberRoles and AgentTextStreamRoles.MASK.inv() == 0) { + "allowed agent text stream role mask contains unknown bits" + } + require(requiredMemberRoles and allowedMemberRoles.inv() == 0) { + "required agent text stream roles must be a subset of allowed roles" + } + require(maxPlaintextFrameLen > 0) { "agent text stream plaintext frame limit cannot be zero" } + require(maxPlaintextFrameLen <= MAX_PLAINTEXT_FRAME_LEN) { + "agent text stream plaintext frame limit exceeds the app profile max" + } + require(replayTtlSecs in 0..MAX_REPLAY_TTL_SECS) { + "agent text stream replay ttl exceeds the app profile max" + } + require(paddingBucketBytes in 0..MAX_PADDING_BUCKET_BYTES) { + "agent text stream padding bucket exceeds the app profile max" + } + } + + fun requires(role: Int) = requiredMemberRoles and role != 0 + + fun allows(role: Int) = allowedMemberRoles and role != 0 + + /** The MLS leaf capabilities this policy demands of every member. */ + fun requiredRoleCapabilities(): List = AgentTextStreamRoles.capabilitiesFor(requiredMemberRoles) + + fun encode(): ByteArray { + val out = ByteArray(STATE_LENGTH) + out[0] = requiredMemberRoles.toByte() + out[1] = allowedMemberRoles.toByte() + out[2] = (maxPlaintextFrameLen shr 24).toByte() + out[3] = (maxPlaintextFrameLen shr 16).toByte() + out[4] = (maxPlaintextFrameLen shr 8).toByte() + out[5] = maxPlaintextFrameLen.toByte() + out[6] = (replayTtlSecs shr 24).toByte() + out[7] = (replayTtlSecs shr 16).toByte() + out[8] = (replayTtlSecs shr 8).toByte() + out[9] = replayTtlSecs.toByte() + out[10] = (paddingBucketBytes shr 8).toByte() + out[11] = paddingBucketBytes.toByte() + return out + } + + fun toComponentData() = ComponentData(COMPONENT_ID, encode()) + + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is AgentTextStreamQuicPolicyV1) return false + return requiredMemberRoles == other.requiredMemberRoles && + allowedMemberRoles == other.allowedMemberRoles && + maxPlaintextFrameLen == other.maxPlaintextFrameLen && + replayTtlSecs == other.replayTtlSecs && + paddingBucketBytes == other.paddingBucketBytes + } + + override fun hashCode(): Int { + var result = requiredMemberRoles + result = 31 * result + allowedMemberRoles + result = 31 * result + maxPlaintextFrameLen.hashCode() + result = 31 * result + replayTtlSecs.hashCode() + result = 31 * result + paddingBucketBytes + return result + } + + companion object { + const val COMPONENT_ID = AppComponentIds.AGENT_TEXT_STREAM_QUIC_V1 + + /** Fixed encoding: 1 + 1 + 4 + 4 + 2. */ + const val STATE_LENGTH = 12 + + /** + * App-profile cap on one frame's plaintext. 65519 keeps the ciphertext + * (plaintext + the 16-byte AEAD tag) inside the record's + * `ciphertext<0..2^16-1>` wire field. + */ + const val MAX_PLAINTEXT_FRAME_LEN = 65519L + const val MAX_REPLAY_TTL_SECS = 5L * 60L + const val MAX_PADDING_BUCKET_BYTES = 4096 + + /** + * The policy a user-to-agent group installs: every member must be able + * to receive, and a member may additionally send. + */ + fun userToAgentDefault() = + AgentTextStreamQuicPolicyV1( + requiredMemberRoles = AgentTextStreamRoles.RECEIVE, + allowedMemberRoles = AgentTextStreamRoles.RECEIVE or AgentTextStreamRoles.SEND, + maxPlaintextFrameLen = 4096, + replayTtlSecs = 0, + paddingBucketBytes = 0, + ) + + /** + * Decode exactly [STATE_LENGTH] bytes. A short, long or out-of-range + * payload is rejected rather than defaulted: these bytes live in signed + * group state, and a receiver that guessed a role mask would silently + * admit a member the group refuses. + */ + fun decode(bytes: ByteArray): AgentTextStreamQuicPolicyV1 { + require(bytes.size == STATE_LENGTH) { + "agent text stream component state must be $STATE_LENGTH bytes, got ${bytes.size}" + } + + fun u32(at: Int): Long = + ((bytes[at].toLong() and 0xff) shl 24) or + ((bytes[at + 1].toLong() and 0xff) shl 16) or + ((bytes[at + 2].toLong() and 0xff) shl 8) or + (bytes[at + 3].toLong() and 0xff) + + return AgentTextStreamQuicPolicyV1( + requiredMemberRoles = bytes[0].toInt() and 0xff, + allowedMemberRoles = bytes[1].toInt() and 0xff, + maxPlaintextFrameLen = u32(2), + replayTtlSecs = u32(6), + paddingBucketBytes = ((bytes[10].toInt() and 0xff) shl 8) or (bytes[11].toInt() and 0xff), + ) + } + + fun decodeOrNull(bytes: ByteArray): AgentTextStreamQuicPolicyV1? = + try { + decode(bytes) + } catch (_: IllegalArgumentException) { + null + } + } +} + +/** + * The three agent-text-stream roles, and the MLS leaf capability that backs + * each one. + * + * Each role is a distinct private-use MLS extension type rather than one flag + * on the component, so a member can advertise `receive` without claiming + * `send` or `fanout`. That is what makes `required_member_roles` enforceable + * per role: MLS itself refuses a leaf that does not advertise a required + * extension, so the group's policy is checked by the CGKA rather than by the + * application. + */ +object AgentTextStreamRoles { + const val RECEIVE = 0x01 + const val SEND = 0x02 + const val FANOUT = 0x04 + const val MASK = RECEIVE or SEND or FANOUT + + /** MLS leaf capability (extension type) for each role. */ + const val RECEIVE_CAPABILITY = 0xF2D1 + const val SEND_CAPABILITY = 0xF2D2 + const val FANOUT_CAPABILITY = 0xF2D4 + + fun capabilityFor(role: Int): Int = + when (role) { + RECEIVE -> RECEIVE_CAPABILITY + SEND -> SEND_CAPABILITY + FANOUT -> FANOUT_CAPABILITY + else -> throw IllegalArgumentException("unknown agent text stream role $role") + } + + /** + * Capabilities a role mask demands, in role order. Unknown bits are + * ignored here — the component decoder rejects them, so a mask that + * reaches this function has already been validated. + */ + fun capabilitiesFor(mask: Int): List = + buildList { + if (mask and RECEIVE != 0) add(RECEIVE_CAPABILITY) + if (mask and SEND != 0) add(SEND_CAPABILITY) + if (mask and FANOUT != 0) add(FANOUT_CAPABILITY) + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamRecordV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamRecordV1.kt new file mode 100644 index 0000000000..e4c623e044 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamRecordV1.kt @@ -0,0 +1,171 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents.agentTextStream + +/** + * One `AgentTextStreamRecordV1` frame, the unit that travels over the QUIC + * stream. + * + * ``` + * version uint8 (= 1) + * stream_id opaque + * seq uint64 + * record_type uint8 + * flags uint8 + * frame opaque + * ``` + * + * [frame] holds plaintext before [AgentTextStreamCrypto.seal] and ciphertext + * after it; the wire always carries the sealed form. `seq` is authenticated + * through the AEAD nonce and the AAD, so a reordered or replayed record fails + * to open rather than being detected afterwards. + */ +class AgentTextStreamRecordV1( + val streamId: ByteArray, + val seq: Long, + val recordType: Int, + val flags: Int = 0, + val frame: ByteArray, +) { + init { + require(streamId.isNotEmpty()) { "agent text stream id cannot be empty" } + require(streamId.size <= MAX_STREAM_ID_LEN) { "agent text stream id is too long: ${streamId.size}" } + require(seq >= 0) { "agent text stream record seq cannot be negative" } + require(recordType in 0..0xff) { "agent text stream record type is not a uint8" } + require(flags in 0..0xff) { "agent text stream record flags are not a uint8" } + require(frame.size <= MAX_CIPHERTEXT_LEN) { "agent text stream frame is too large: ${frame.size}" } + } + + fun copyWithFrame(newFrame: ByteArray) = + AgentTextStreamRecordV1( + streamId = streamId, + seq = seq, + recordType = recordType, + flags = flags, + frame = newFrame, + ) + + fun encode(): ByteArray { + val out = ArrayList(encodedLength()) + out.add(VERSION.toByte()) + out.addLengthPrefixed(streamId) + for (i in 7 downTo 0) out.add((seq shr (8 * i)).toByte()) + out.add(recordType.toByte()) + out.add(flags.toByte()) + out.addLengthPrefixed(frame) + return out.toByteArray() + } + + fun encodedLength(): Int = + 1 + + QuicVarInt.encodedLength(streamId.size.toLong()) + streamId.size + + 8 + 1 + 1 + + QuicVarInt.encodedLength(frame.size.toLong()) + frame.size + + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is AgentTextStreamRecordV1) return false + return seq == other.seq && + recordType == other.recordType && + flags == other.flags && + streamId.contentEquals(other.streamId) && + frame.contentEquals(other.frame) + } + + override fun hashCode(): Int { + var result = streamId.contentHashCode() + result = 31 * result + seq.hashCode() + result = 31 * result + recordType + result = 31 * result + flags + result = 31 * result + frame.contentHashCode() + return result + } + + companion object { + const val VERSION = 1 + + const val TYPE_TEXT_DELTA = 0x01 + const val TYPE_PROGRESS_DELTA = 0x02 + const val TYPE_STATUS = 0x03 + const val TYPE_CHECKPOINT = 0x04 + const val TYPE_ABORT = 0x05 + const val TYPE_FINAL_NOTICE = 0x06 + + const val MAX_STREAM_ID_LEN = 64 + + /** The profile pins the stream id to 32 bytes; the framing allows less. */ + const val PROFILE_STREAM_ID_LEN = 32 + const val START_EVENT_ID_LEN = 32 + + /** Wire bound of the record's `ciphertext<0..2^16-1>` field. */ + const val MAX_CIPHERTEXT_LEN = 0xffff + + const val AEAD_TAG_LEN = 16 + + fun textDelta( + streamId: ByteArray, + seq: Long, + frame: ByteArray, + ) = AgentTextStreamRecordV1(streamId, seq, TYPE_TEXT_DELTA, 0, frame) + + /** + * Decode one record. Trailing bytes are an error: a record is framed + * by the QUIC stream, so anything after the frame field means the + * sender and receiver disagree about where this record ends. + * + * An UNKNOWN [recordType] is deliberately not an error. A newer + * advisory record type must not tear down an otherwise valid preview + * stream, so receivers ignore semantics they do not understand. + */ + fun decode(bytes: ByteArray): AgentTextStreamRecordV1 { + require(bytes.isNotEmpty()) { "agent text stream record is truncated while reading version" } + require(bytes[0].toInt() and 0xff == VERSION) { + "unsupported agent text stream record version: ${bytes[0].toInt() and 0xff}" + } + var at = 1 + + val streamIdLen = QuicVarInt.decode(bytes, at) + at += streamIdLen.length + require(at + streamIdLen.value <= bytes.size) { "agent text stream record is truncated while reading stream_id" } + val streamId = bytes.copyOfRange(at, at + streamIdLen.value.toInt()) + at += streamIdLen.value.toInt() + + require(at + 8 <= bytes.size) { "agent text stream record is truncated while reading seq" } + var seq = 0L + for (i in 0 until 8) seq = (seq shl 8) or (bytes[at + i].toLong() and 0xff) + at += 8 + + require(at + 2 <= bytes.size) { "agent text stream record is truncated while reading record_type" } + val recordType = bytes[at].toInt() and 0xff + val flags = bytes[at + 1].toInt() and 0xff + at += 2 + + val frameLen = QuicVarInt.decode(bytes, at) + at += frameLen.length + require(at + frameLen.value <= bytes.size) { "agent text stream record is truncated while reading frame" } + val frame = bytes.copyOfRange(at, at + frameLen.value.toInt()) + at += frameLen.value.toInt() + + require(at == bytes.size) { "agent text stream record contains trailing bytes: ${bytes.size - at}" } + return AgentTextStreamRecordV1(streamId, seq, recordType, flags, frame) + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamStart.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamStart.kt new file mode 100644 index 0000000000..0b0c09ebe3 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamStart.kt @@ -0,0 +1,128 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents.agentTextStream + +import com.vitorpamplona.quartz.nip01Core.core.HexKey + +/** + * The kind-1200 event that anchors one agent text stream, read off an inner + * app payload's tags. + * + * A stream never carries its own key material: the anchoring event's id is + * part of [AgentTextStreamKeyContextV1], so a receiver can only derive record + * keys for a stream it has already seen announced inside the group. That is + * also why the anchor is an ordinary in-group app payload rather than + * something the broker hands out — the broker relays ciphertext and learns + * nothing. + * + * ``` + * ["stream", <32-byte stream id, hex>] + * ["route", "quic"] (optional; "quic" when absent) + * ["broker", ] (repeatable) + * ``` + * + * The matching END of a stream is an ordinary kind-9 chat carrying + * [STREAM_TAG], [STREAM_HASH_TAG] and [STREAM_CHUNKS_TAG]; see + * [AgentTextStreamFinal]. + */ +class AgentTextStreamStart( + val streamId: HexKey, + val route: String, + val brokerCandidates: List, +) { + val isQuicRoute: Boolean get() = route == ROUTE_QUIC + + companion object { + const val KIND = 1200 + + const val STREAM_TAG = "stream" + const val ROUTE_TAG = "route" + const val BROKER_TAG = "broker" + const val ROUTE_QUIC = "quic" + + fun tags( + streamId: HexKey, + brokerCandidates: List, + route: String = ROUTE_QUIC, + ): Array> = + buildList { + add(arrayOf(STREAM_TAG, streamId)) + add(arrayOf(ROUTE_TAG, route)) + brokerCandidates.forEach { add(arrayOf(BROKER_TAG, it)) } + }.toTypedArray() + + /** + * Read the start view from a kind-1200 payload's tags, or null when + * this is not a stream start. A missing `route` means `quic`; a + * missing `stream` tag means the payload is not usable as an anchor at + * all, so it is rejected rather than defaulted. + */ + fun fromTags( + kind: Int, + tags: Array>, + ): AgentTextStreamStart? { + if (kind != KIND) return null + val streamId = tags.firstOrNull { it.size >= 2 && it[0] == STREAM_TAG }?.get(1) ?: return null + val route = tags.firstOrNull { it.size >= 2 && it[0] == ROUTE_TAG }?.get(1) ?: ROUTE_QUIC + val brokers = tags.filter { it.size >= 2 && it[0] == BROKER_TAG }.map { it[1] } + return AgentTextStreamStart(streamId, route, brokers) + } + } +} + +/** + * The `stream` / `stream-hash` / `stream-chunks` tags a kind-9 chat carries to + * close a stream out. + * + * The final chat is the durable message; the stream was a live preview of the + * text it now contains. A receiver that folded every record compares its own + * [AgentTextStreamTranscriptV1] against these two values: agreement means it + * saw exactly the stream the publisher sent, and disagreement means records + * were dropped, reordered, or injected — even though each one opened. + */ +class AgentTextStreamFinal( + val streamId: HexKey, + val transcriptHash: HexKey, + val chunkCount: Long, +) { + companion object { + const val STREAM_HASH_TAG = "stream-hash" + const val STREAM_CHUNKS_TAG = "stream-chunks" + + fun tags( + streamId: HexKey, + transcriptHash: HexKey, + chunkCount: Long, + ): Array> = + arrayOf( + arrayOf(AgentTextStreamStart.STREAM_TAG, streamId), + arrayOf(STREAM_HASH_TAG, transcriptHash), + arrayOf(STREAM_CHUNKS_TAG, chunkCount.toString()), + ) + + fun fromTags(tags: Array>): AgentTextStreamFinal? { + val streamId = tags.firstOrNull { it.size >= 2 && it[0] == AgentTextStreamStart.STREAM_TAG }?.get(1) ?: return null + val hash = tags.firstOrNull { it.size >= 2 && it[0] == STREAM_HASH_TAG }?.get(1) ?: return null + val chunks = tags.firstOrNull { it.size >= 2 && it[0] == STREAM_CHUNKS_TAG }?.get(1)?.toLongOrNull() ?: return null + return AgentTextStreamFinal(streamId, hash, chunks) + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamTranscriptV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamTranscriptV1.kt new file mode 100644 index 0000000000..300838f9e5 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamTranscriptV1.kt @@ -0,0 +1,101 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents.agentTextStream + +import com.vitorpamplona.quartz.marmot.mls.crypto.MlsCryptoProvider + +/** + * The rolling hash a stream's final kind-9 chat publishes as `stream-hash`, + * alongside the `stream-chunks` count. + * + * ``` + * h0 = SHA-256("marmot agent text stream transcript v1" + * || len(stream_id) || stream_id + * || len(start_event_id) || start_event_id) + * h_n = SHA-256(h_{n-1} || seq || record_type || plaintext_frame) + * ``` + * + * Every receiver folds the same records in the same order, so a receiver whose + * hash disagrees with the publisher's saw a different stream — a dropped, + * reordered or injected record — even though each individual record opened. + */ +class AgentTextStreamTranscriptV1 private constructor( + val streamId: ByteArray, + val startEventId: ByteArray, + private var rollingHash: ByteArray, + private var chunks: Long, +) { + val hash: ByteArray get() = rollingHash.copyOf() + val chunkCount: Long get() = chunks + + fun append( + seq: Long, + recordType: Int, + plaintextFrame: ByteArray, + ) { + val input = ArrayList(rollingHash.size + 9 + plaintextFrame.size) + for (b in rollingHash) input.add(b) + for (i in 7 downTo 0) input.add((seq shr (8 * i)).toByte()) + input.add(recordType.toByte()) + for (b in plaintextFrame) input.add(b) + rollingHash = MlsCryptoProvider.hash(input.toByteArray()) + chunks += 1 + } + + fun append(record: AgentTextStreamRecordV1) = append(record.seq, record.recordType, record.frame) + + companion object { + val CONTEXT = "marmot agent text stream transcript v1".encodeToByteArray() + + fun start( + streamId: ByteArray, + startEventId: ByteArray, + ): AgentTextStreamTranscriptV1 { + val input = ArrayList() + for (b in CONTEXT) input.add(b) + input.addLengthPrefixed(streamId) + input.addLengthPrefixed(startEventId) + return AgentTextStreamTranscriptV1( + streamId = streamId, + startEventId = startEventId, + rollingHash = MlsCryptoProvider.hash(input.toByteArray()), + chunks = 0, + ) + } + + /** + * Resume from durable state. The caller must have bound [hash] and + * [chunkCount] to this same stream and start event — nothing here can + * check that, and resuming against a different stream silently forks + * the transcript. + */ + fun resume( + streamId: ByteArray, + startEventId: ByteArray, + hash: ByteArray, + chunkCount: Long, + ): AgentTextStreamTranscriptV1 { + require(hash.size == 32) { "agent text stream transcript hash must be 32 bytes" } + require(chunkCount >= 0) { "agent text stream chunk count cannot be negative" } + return AgentTextStreamTranscriptV1(streamId, startEventId, hash.copyOf(), chunkCount) + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/QuicVarInt.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/QuicVarInt.kt new file mode 100644 index 0000000000..eafbc815ca --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/QuicVarInt.kt @@ -0,0 +1,99 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents.agentTextStream + +/** + * The Marmot binary profile's QUIC variable-length integer (RFC 9000 §16), + * used for every length prefix inside the agent-text-stream wire formats. + * + * `TlsWriter.putOpaqueVarInt` writes the same encoding but always couples it to + * the bytes it measures. The stream formats prefix values that are not the + * immediately following field (the record's `plaintext_frame` length is read + * back before the frame is consumed, and the key context hashes prefixes on + * their own), so the codec is exposed here as a standalone pair. + */ +object QuicVarInt { + const val MAX_VALUE: Long = (1L shl 62) - 1 + + fun encodedLength(value: Long): Int = + when { + value < 0 -> throw IllegalArgumentException("QUIC varint cannot encode a negative value") + value < 64 -> 1 + value < 16_384 -> 2 + value < 1_073_741_824 -> 4 + value <= MAX_VALUE -> 8 + else -> throw IllegalArgumentException("QUIC varint cannot encode $value") + } + + fun encode(value: Long): ByteArray { + val out = ByteArray(encodedLength(value)) + when (out.size) { + 1 -> out[0] = value.toByte() + 2 -> { + out[0] = (((value shr 8) and 0x3f) or 0x40).toByte() + out[1] = value.toByte() + } + 4 -> { + out[0] = (((value shr 24) and 0x3f) or 0x80).toByte() + out[1] = (value shr 16).toByte() + out[2] = (value shr 8).toByte() + out[3] = value.toByte() + } + else -> { + out[0] = (((value shr 56) and 0x3f) or 0xc0).toByte() + for (i in 1 until 8) out[i] = (value shr (8 * (7 - i))).toByte() + } + } + return out + } + + /** The decoded value plus the number of bytes it consumed. */ + class Decoded( + val value: Long, + val length: Int, + ) + + /** + * Decode at [offset]. Rejects a truncated prefix rather than returning a + * short read: these bytes carry field boundaries, so a silent zero would + * turn a truncated record into a differently-shaped valid one. + */ + fun decode( + bytes: ByteArray, + offset: Int = 0, + ): Decoded { + require(offset < bytes.size) { "QUIC varint is truncated" } + val first = bytes[offset].toInt() and 0xff + val length = 1 shl (first shr 6) + require(offset + length <= bytes.size) { "QUIC varint is truncated" } + var value = (first and 0x3f).toLong() + for (i in 1 until length) { + value = (value shl 8) or (bytes[offset + i].toLong() and 0xff) + } + return Decoded(value, length) + } +} + +/** Append `varint(bytes.size) || bytes`. */ +fun MutableList.addLengthPrefixed(bytes: ByteArray) { + for (b in QuicVarInt.encode(bytes.size.toLong())) add(b) + for (b in bytes) add(b) +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index e48121953d..950e542230 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -21,7 +21,11 @@ package com.vitorpamplona.quartz.marmot.mls.group import com.vitorpamplona.quartz.marmot.appComponents.AdminPolicyV1 +import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds import com.vitorpamplona.quartz.marmot.appComponents.MarmotGroupState +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamCrypto +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamQuicPolicyV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRoles import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter @@ -65,6 +69,7 @@ import com.vitorpamplona.quartz.marmot.mls.tree.LeafNodeSource import com.vitorpamplona.quartz.marmot.mls.tree.Lifetime import com.vitorpamplona.quartz.marmot.mls.tree.RatchetTree import com.vitorpamplona.quartz.marmot.mls.tree.UpdatePathNode +import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.utils.TimeUtils import com.vitorpamplona.quartz.utils.mac.MacInstance @@ -193,6 +198,20 @@ class MlsGroup private constructor( /** The current profile's component view of this GroupContext. */ fun currentGroupState(): MarmotGroupState = MarmotGroupState.fromExtensions(groupContext.extensions) + /** + * The `nostr_group_id` this group routes kind-445 traffic under, from + * whichever profile the group is actually using. + * + * A current-profile group carries it in the `marmot.transport.nostr.routing.v1` + * component (`0x8004`); a legacy group carries it inside the monolithic + * `0xF2EE` extension. Reading only the legacy one leaves us unable to join + * any group a current-profile client created — the routing id is required + * to subscribe at all, so the failure is total rather than partial. + */ + fun currentNostrGroupId(): HexKey? = + currentGroupState().routing?.nostrGroupIdHex + ?: currentMarmotData()?.nostrGroupId + /** * The group's configured admin account identities, as lowercase hex. * @@ -1905,6 +1924,19 @@ class MlsGroup private constructor( length: Int, ): ByteArray = KeySchedule.mlsExporter(epochSecrets.exporterSecret, label, context, length) + /** + * `MLS-Exporter("marmot", "agent-text-stream-quic", 32)` — the secret every + * member of this epoch derives per-stream record keys from. Per-stream and + * per-record separation is entirely in the HKDF key context, so this one + * secret covers every stream in the epoch. + */ + fun agentTextStreamSecret(): ByteArray = + exporterSecret( + AgentTextStreamCrypto.EXPORTER_LABEL, + AgentTextStreamCrypto.EXPORTER_CONTEXT, + AgentTextStreamCrypto.SECRET_LENGTH, + ) + // --- External Join Support (RFC 9420 Section 8.3, 12.4.3.2) --- /** @@ -3258,6 +3290,37 @@ class MlsGroup private constructor( proposals = listOf(SELF_REMOVE_PROPOSAL_TYPE), ) + /** + * Enforce the `0x8006` component's `required_member_roles` mask over + * the joining tree. + * + * A group carrying the agent-text-stream component requires each named + * role as an MLS leaf capability (`0xF2D1` receive, `0xF2D2` send, + * `0xF2D4` fanout). Advertising the component id alone is not enough — + * that only says "understands the component"; the role capability says + * "can actually do this". + */ + private fun requireAgentTextStreamRoles( + extensions: List, + tree: RatchetTree, + myLeafIndex: Int, + ) { + val policy = + AppDataDictionary + .fromExtensionsOrEmpty(extensions)[AgentTextStreamQuicPolicyV1.COMPONENT_ID] + ?.let { AgentTextStreamQuicPolicyV1.decode(it) } ?: return + val required = policy.requiredRoleCapabilities() + if (required.isEmpty()) return + + val myLeaf = tree.getLeaf(myLeafIndex) + requireNotNull(myLeaf) { "Joiner's leaf is blank after tree reconstruction" } + val missing = required.filterNot { myLeaf.capabilities.extensions.contains(it) } + require(missing.isEmpty()) { + "Joiner does not advertise agent text stream roles this group requires: " + + missing.joinToString { AppComponentIds.toHex(it) } + } + } + /** * Leaf capabilities for the current profile. * @@ -3272,10 +3335,20 @@ class MlsGroup private constructor( * this line a current-profile KeyPackage would be un-addable to every * legacy group that already exists — the exact mirror of the interop * failure the current profile was adopted to fix. + * + * `0xF2D1` is the agent-text-stream RECEIVE role, for the same reason: + * a group carrying component `0x8006` with `required_member_roles` + * naming `receive` refuses a leaf that does not advertise it. We stop + * at receive — see `CurrentProfileGroupFactory.SUPPORTED_COMPONENTS`. */ fun currentProfileLeafCapabilities(): Capabilities = Capabilities( - extensions = listOf(AppDataDictionary.EXTENSION_TYPE, MarmotGroupData.EXTENSION_ID_INT), + extensions = + listOf( + AppDataDictionary.EXTENSION_TYPE, + MarmotGroupData.EXTENSION_ID_INT, + AgentTextStreamRoles.RECEIVE_CAPABILITY, + ), proposals = listOf(APP_DATA_UPDATE_PROPOSAL_TYPE, SELF_REMOVE_PROPOSAL_TYPE), ) @@ -3526,6 +3599,14 @@ class MlsGroup private constructor( } } + // The agent-text-stream component (0x8006) states its own + // per-member requirement OUTSIDE MLS `required_capabilities`: + // `required_member_roles` names role capabilities every member + // must advertise. MLS cannot enforce it, so a joiner that skipped + // this check would join a group it can never satisfy and have + // every one of its commits refused by peers that do check. + requireAgentTextStreamRoles(groupContext.extensions, tree, myLeafIndex) + // Derive epoch secrets directly from memberSecret (RFC 9420 Section 8.3) // For Welcome, epoch_secret = ExpandWithLabel(member_secret, "epoch", GroupContext, Nh) val epochSecret = diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt index c0678b716a..e21eae6772 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt @@ -287,9 +287,10 @@ class MlsGroupManager( val group = MlsGroup.processWelcome(welcomeBytes, bundle) val derivedId = - group.currentMarmotData()?.nostrGroupId + group.currentNostrGroupId() ?: throw IllegalArgumentException( - "Welcome GroupContext is missing the NostrGroupData extension — cannot derive nostrGroupId", + "Welcome GroupContext carries no nostr routing: neither the current profile's " + + "0x8004 component nor the legacy 0xF2EE extension — cannot derive nostrGroupId", ) if (hintNostrGroupId != null && hintNostrGroupId != derivedId) { @@ -404,17 +405,34 @@ class MlsGroupManager( targetLeafIndex: Int, ): StagedCommit = stage(nostrGroupId) { it.removeMember(targetLeafIndex) } + /** + * Refuse a GroupContextExtensions change from a non-admin. + * + * The admin set is read profile-agnostically: a current-profile group + * keeps it in the `0x8003` admin-policy component, a legacy group inside + * the `0xF2EE` extension. Reading only the legacy one made + * `adminsConfigured` false for every current-profile group, which skipped + * the gate entirely rather than failing closed — the group would then + * refuse the commit on arrival at every peer, so the only thing the + * missing check bought was a locally-diverged copy. + * + * A group with NO admin set at all is still open: that is the MIP-01 + * bootstrap state, before any admin policy has been installed. + */ + private fun requireAdminForExtensionChange(group: MlsGroup) { + val admins = group.currentAdminIdentities() + check(admins.isEmpty() || group.isLocalAdmin()) { + "MIP-01: only admins may update group extensions" + } + } + /** Stage a GroupContextExtensions change. See [StagedCommit]. */ suspend fun stageUpdateGroupExtensions( nostrGroupId: HexKey, extensions: List, ): StagedCommit { val live = requireGroup(nostrGroupId) - val currentMarmot = live.currentMarmotData() - val adminsConfigured = currentMarmot != null && currentMarmot.adminPubkeys.isNotEmpty() - check(!adminsConfigured || live.isLocalAdmin()) { - "MIP-01: only admins may update group extensions" - } + requireAdminForExtensionChange(live) return stage(nostrGroupId) { clone -> clone.proposeGroupContextExtensions(extensions) clone.commit() @@ -636,11 +654,7 @@ class MlsGroupManager( ): CommitResult = mutex.withLock { val group = requireGroup(nostrGroupId) - val currentMarmot = group.currentMarmotData() - val adminsConfigured = currentMarmot != null && currentMarmot.adminPubkeys.isNotEmpty() - check(!adminsConfigured || group.isLocalAdmin()) { - "MIP-01: only admins may update group extensions" - } + requireAdminForExtensionChange(group) val retainedBefore = group.retainedSecrets() group.proposeGroupContextExtensions(extensions) val result = group.commit() diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt index d9788f0a58..96cdd0a214 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt @@ -22,6 +22,7 @@ package com.vitorpamplona.quartz.marmot.appComponents import com.vitorpamplona.quartz.TestResourceLoader import com.vitorpamplona.quartz.marmot.appComponents.accountIdentityProof.AccountIdentityProofV2 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRoles import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader @@ -106,17 +107,23 @@ class CurrentProfileGroupFactoryTest { assertContentEquals(ByteArray(0), kpDictionary[AppComponentIds.LAST_RESORT_KEY_PACKAGE]) // Capabilities advertise the draft extension the current profile - // needs, plus the legacy 0xF2EE group-data extension. + // needs, plus the legacy 0xF2EE group-data extension and the + // agent-text-stream RECEIVE role. // - // The extra entry is deliberate and is NOT drift from the MDK + // The extra entries are deliberate and are NOT drift from the MDK // reference. A capability says "this client can handle it", and a - // group that REQUIRES 0xF2EE refuses to add a leaf that does not - // advertise it — so without this a current-profile KeyPackage - // would be un-addable to every legacy group that already exists. - // Advertising more than a group requires is always acceptable; - // advertising less is what gets a leaf rejected. + // group that REQUIRES 0xF2EE (legacy) or 0xF2D1 (any group MDK + // creates) refuses to add a leaf that does not advertise it — so + // without these a current-profile KeyPackage would be un-addable + // to every legacy group that already exists and to every group MDK + // makes. Advertising more than a group requires is always + // acceptable; advertising less is what gets a leaf rejected. assertEquals( - listOf(AppDataDictionary.EXTENSION_TYPE, MarmotGroupData.EXTENSION_ID_INT), + listOf( + AppDataDictionary.EXTENSION_TYPE, + MarmotGroupData.EXTENSION_ID_INT, + AgentTextStreamRoles.RECEIVE_CAPABILITY, + ), kp.leafNode.capabilities.extensions, ) assertTrue( diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamTest.kt new file mode 100644 index 0000000000..ca1539066e --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamTest.kt @@ -0,0 +1,346 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents.agentTextStream + +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertNotNull +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * `marmot.group.agent-text-stream.quic.v1` (0x8006), checked against the bytes + * MDK 0.9.20 actually installs. The fixture is the component state read off a + * group `wn groups create` made on the interop harness. + * + * This component is the one that decides whether MDK will let us into a group + * it created: its `required_member_roles` mask names MLS leaf capabilities, so + * a client that neither advertises `0x8006` nor the `0xF2D1` receive + * capability is refused at the Add, before any of our own code runs. + */ +class AgentTextStreamQuicPolicyV1Test { + /** `wn groups create` default: require receive, allow receive+send, 4096-byte frames. */ + private val mdkDefaultState = "010300001000000000000000".hexToByteArray() + + @Test + fun decodesTheComponentStateMdkInstalls() { + val policy = AgentTextStreamQuicPolicyV1.decode(mdkDefaultState) + + assertEquals(AgentTextStreamRoles.RECEIVE, policy.requiredMemberRoles) + assertEquals(AgentTextStreamRoles.RECEIVE or AgentTextStreamRoles.SEND, policy.allowedMemberRoles) + assertEquals(4096L, policy.maxPlaintextFrameLen) + assertEquals(0L, policy.replayTtlSecs) + assertEquals(0, policy.paddingBucketBytes) + assertTrue(policy.requires(AgentTextStreamRoles.RECEIVE)) + assertTrue(policy.allows(AgentTextStreamRoles.SEND)) + } + + @Test + fun ourDefaultEncodesToTheSameBytes() { + assertContentEquals(mdkDefaultState, AgentTextStreamQuicPolicyV1.userToAgentDefault().encode()) + } + + @Test + fun requiredRolesMapToLeafCapabilities() { + val policy = AgentTextStreamQuicPolicyV1.decode(mdkDefaultState) + assertEquals(listOf(AgentTextStreamRoles.RECEIVE_CAPABILITY), policy.requiredRoleCapabilities()) + assertEquals(0xF2D1, AgentTextStreamRoles.RECEIVE_CAPABILITY) + assertEquals(0xF2D2, AgentTextStreamRoles.SEND_CAPABILITY) + assertEquals(0xF2D4, AgentTextStreamRoles.FANOUT_CAPABILITY) + } + + @Test + fun roundTripsEveryFieldAtItsBound() { + val policy = + AgentTextStreamQuicPolicyV1( + requiredMemberRoles = AgentTextStreamRoles.MASK, + allowedMemberRoles = AgentTextStreamRoles.MASK, + maxPlaintextFrameLen = AgentTextStreamQuicPolicyV1.MAX_PLAINTEXT_FRAME_LEN, + replayTtlSecs = AgentTextStreamQuicPolicyV1.MAX_REPLAY_TTL_SECS, + paddingBucketBytes = AgentTextStreamQuicPolicyV1.MAX_PADDING_BUCKET_BYTES, + ) + assertEquals(policy, AgentTextStreamQuicPolicyV1.decode(policy.encode())) + } + + /** + * These bytes sit in signed group state. A decoder that repaired them + * would admit a member the group's own policy refuses, so every one of + * these is a hard failure rather than a default. + */ + @Test + fun rejectsStateItCannotActOn() { + // Wrong length. + assertFailsWith { AgentTextStreamQuicPolicyV1.decode(ByteArray(11)) } + assertFailsWith { AgentTextStreamQuicPolicyV1.decode(ByteArray(13)) } + // No required role at all. + assertFailsWith { + AgentTextStreamQuicPolicyV1.decode("000300001000000000000000".hexToByteArray()) + } + // Unknown role bit — a mask we cannot map to a capability. + assertFailsWith { + AgentTextStreamQuicPolicyV1.decode("080b00001000000000000000".hexToByteArray()) + } + // Required roles outside the allowed set. + assertFailsWith { + AgentTextStreamQuicPolicyV1.decode("020100001000000000000000".hexToByteArray()) + } + // Zero frame limit, and one past the app-profile cap (65519 -> 65520). + assertFailsWith { + AgentTextStreamQuicPolicyV1.decode("010300000000000000000000".hexToByteArray()) + } + assertFailsWith { + AgentTextStreamQuicPolicyV1.decode("01030000fff0000000000000".hexToByteArray()) + } + assertNull(AgentTextStreamQuicPolicyV1.decodeOrNull(ByteArray(0))) + } +} + +/** + * The QUIC variable-length integer is the length prefix for every field in the + * stream wire formats, and it is also hashed into the transcript and the key + * context — so a wrong prefix is not a parse error but a different key. + */ +class QuicVarIntTest { + @Test + fun encodesEachWidthAtItsBoundary() { + assertContentEquals(byteArrayOf(0x00), QuicVarInt.encode(0)) + assertContentEquals(byteArrayOf(0x20), QuicVarInt.encode(32)) + assertContentEquals(byteArrayOf(0x3f), QuicVarInt.encode(63)) + assertContentEquals(byteArrayOf(0x40, 0x40), QuicVarInt.encode(64)) + assertContentEquals(byteArrayOf(0x7f, 0xff.toByte()), QuicVarInt.encode(16_383)) + assertContentEquals(byteArrayOf(0x80.toByte(), 0x00, 0x40, 0x00), QuicVarInt.encode(16_384)) + } + + @Test + fun roundTripsAcrossWidths() { + for (value in listOf(0L, 1L, 63L, 64L, 16_383L, 16_384L, 1_073_741_823L, 1_073_741_824L)) { + val encoded = QuicVarInt.encode(value) + val decoded = QuicVarInt.decode(encoded) + assertEquals(value, decoded.value) + assertEquals(encoded.size, decoded.length) + } + } + + @Test + fun rejectsATruncatedPrefix() { + assertFailsWith { QuicVarInt.decode(ByteArray(0)) } + assertFailsWith { QuicVarInt.decode(byteArrayOf(0x40)) } + } +} + +class AgentTextStreamRecordV1Test { + private val streamId = ByteArray(32) { 0x5a } + + @Test + fun roundTripsAFrame() { + val record = AgentTextStreamRecordV1.textDelta(streamId, 7, "hello".encodeToByteArray()) + val decoded = AgentTextStreamRecordV1.decode(record.encode()) + + assertEquals(record, decoded) + assertEquals(record.encodedLength(), record.encode().size) + } + + /** + * A newer advisory record type must not tear down an otherwise valid + * preview stream, so framing accepts types it has no semantics for. + */ + @Test + fun acceptsAnUnknownRecordType() { + val record = AgentTextStreamRecordV1(streamId, 1, recordType = 0x7f, frame = ByteArray(4)) + assertEquals(0x7f, AgentTextStreamRecordV1.decode(record.encode()).recordType) + } + + @Test + fun rejectsFramingItCannotTrust() { + val encoded = AgentTextStreamRecordV1.textDelta(streamId, 1, ByteArray(4)).encode() + + // Trailing bytes: the sender and receiver disagree where the record ends. + assertFailsWith { AgentTextStreamRecordV1.decode(encoded + 0x00) } + // Truncated. + assertFailsWith { AgentTextStreamRecordV1.decode(encoded.copyOf(encoded.size - 1)) } + // A version we do not speak. + val wrongVersion = encoded.copyOf() + wrongVersion[0] = 2 + assertFailsWith { AgentTextStreamRecordV1.decode(wrongVersion) } + // An empty stream id names no stream. + assertFailsWith { + AgentTextStreamRecordV1(ByteArray(0), 1, AgentTextStreamRecordV1.TYPE_TEXT_DELTA, frame = ByteArray(0)) + } + } +} + +class AgentTextStreamCryptoTest { + private val secret = ByteArray(32) { it.toByte() } + private val streamId = ByteArray(32) { 0x11 } + private val startEventId = ByteArray(32) { 0x22 } + + private fun crypto( + epoch: Long = 3, + stream: ByteArray = streamId, + ) = AgentTextStreamCrypto( + secret, + AgentTextStreamKeyContextV1( + groupId = ByteArray(16) { 0x33 }, + streamId = stream, + mlsEpoch = epoch, + senderId = ByteArray(32) { 0x44 }, + startEventId = startEventId, + ), + ) + + @Test + fun sealAndOpenRoundTrip() { + val c = crypto() + val record = AgentTextStreamRecordV1.textDelta(streamId, 5, "streamed text".encodeToByteArray()) + val sealed = c.seal(record) + + assertTrue(sealed.frame.size == record.frame.size + AgentTextStreamRecordV1.AEAD_TAG_LEN) + assertContentEquals(record.frame, c.open(sealed).frame) + } + + /** + * `seq` is in both the nonce and the AAD, so a replayed or reordered + * record does not merely look wrong — it fails to open. + */ + @Test + fun aRecordDoesNotOpenAtADifferentSequence() { + val c = crypto() + val sealed = c.seal(AgentTextStreamRecordV1.textDelta(streamId, 5, "abc".encodeToByteArray())) + val replayed = + AgentTextStreamRecordV1( + streamId = sealed.streamId, + seq = 6, + recordType = sealed.recordType, + flags = sealed.flags, + frame = sealed.frame, + ) + assertNull(c.openOrNull(replayed)) + } + + /** Nonce 0 is the base itself, and each seq flips only the low 64 bits. */ + @Test + fun theNonceIsTheBaseXorTheSequence() { + val c = crypto() + val base = c.recordNonce(0) + val one = c.recordNonce(1) + assertEquals(AgentTextStreamCrypto.NONCE_LENGTH, base.size) + assertContentEquals(base.copyOf(11), one.copyOf(11)) + assertEquals((base[11].toInt() xor 1).toByte(), one[11]) + } + + /** + * The key context is the only thing separating two streams that share one + * group exporter secret, so changing any part of it must change the key. + */ + @Test + fun everyKeyContextFieldSeparatesTheKey() { + val base = crypto().recordKey().toHexKey() + assertTrue(crypto(epoch = 4).recordKey().toHexKey() != base) + assertTrue(crypto(stream = ByteArray(32) { 0x12 }).recordKey().toHexKey() != base) + } + + @Test + fun refusesARecordFromAnotherStream() { + val c = crypto() + val foreign = AgentTextStreamRecordV1.textDelta(ByteArray(32) { 0x77 }, 1, ByteArray(4)) + assertFailsWith { c.seal(foreign) } + } + + @Test + fun refusesAFrameOverTheGroupLimit() { + val c = crypto() + val record = AgentTextStreamRecordV1.textDelta(streamId, 1, ByteArray(5000)) + assertFailsWith { c.seal(record, maxPlaintextFrameLen = 4096) } + } +} + +class AgentTextStreamTranscriptV1Test { + private val streamId = ByteArray(32) { 0x11 } + private val startEventId = ByteArray(32) { 0x22 } + + @Test + fun foldsRecordsInOrder() { + val a = AgentTextStreamTranscriptV1.start(streamId, startEventId) + val b = AgentTextStreamTranscriptV1.start(streamId, startEventId) + + a.append(0, AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "one".encodeToByteArray()) + a.append(1, AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "two".encodeToByteArray()) + b.append(1, AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "two".encodeToByteArray()) + b.append(0, AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "one".encodeToByteArray()) + + assertEquals(2, a.chunkCount) + assertTrue(!a.hash.contentEquals(b.hash), "a reordered stream must not hash the same") + } + + @Test + fun resumesFromDurableState() { + val original = AgentTextStreamTranscriptV1.start(streamId, startEventId) + original.append(0, AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "one".encodeToByteArray()) + + val resumed = AgentTextStreamTranscriptV1.resume(streamId, startEventId, original.hash, original.chunkCount) + resumed.append(1, AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "two".encodeToByteArray()) + original.append(1, AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "two".encodeToByteArray()) + + assertContentEquals(original.hash, resumed.hash) + assertEquals(original.chunkCount, resumed.chunkCount) + } +} + +class AgentTextStreamStartTest { + @Test + fun readsTheAnchorTags() { + val tags = + AgentTextStreamStart.tags( + streamId = ByteArray(32) { 0x5a }.toHexKey(), + brokerCandidates = listOf("https://broker.example:4443", "https://alt.example:4443"), + ) + val start = assertNotNull(AgentTextStreamStart.fromTags(AgentTextStreamStart.KIND, tags)) + + assertTrue(start.isQuicRoute) + assertEquals(2, start.brokerCandidates.size) + assertEquals(ByteArray(32) { 0x5a }.toHexKey(), start.streamId) + } + + @Test + fun defaultsAMissingRouteToQuicButNeverAMissingStreamId() { + assertTrue( + assertNotNull( + AgentTextStreamStart.fromTags(AgentTextStreamStart.KIND, arrayOf(arrayOf("stream", "ab"))), + ).isQuicRoute, + ) + assertNull(AgentTextStreamStart.fromTags(AgentTextStreamStart.KIND, arrayOf(arrayOf("route", "quic")))) + assertNull(AgentTextStreamStart.fromTags(9, arrayOf(arrayOf("stream", "ab")))) + } + + @Test + fun readsTheFinalTranscriptTags() { + val tags = AgentTextStreamFinal.tags("aa", "bb", 12) + val final = assertNotNull(AgentTextStreamFinal.fromTags(tags)) + assertEquals("aa", final.streamId) + assertEquals("bb", final.transcriptHash) + assertEquals(12, final.chunkCount) + assertNull(AgentTextStreamFinal.fromTags(arrayOf(arrayOf("stream", "aa")))) + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt new file mode 100644 index 0000000000..476770671a --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt @@ -0,0 +1,139 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mls.group + +import com.vitorpamplona.quartz.marmot.appComponents.CurrentProfileGroupFactory +import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamQuicPolicyV1 +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertNotNull +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * A joiner has to learn the group's `nostr_group_id` from the Welcome itself — + * it is the `h` tag every kind-445 event in the group carries, so without it + * the joiner cannot even subscribe. + * + * Reading it only from the legacy `0xF2EE` extension made us unable to join + * ANY group a current-profile client created: MDK's welcome arrived, decrypted, + * and was then thrown away with "GroupContext is missing the NostrGroupData + * extension". The routing id had been there the whole time, in the + * `marmot.transport.nostr.routing.v1` component. + */ +class CurrentProfileWelcomeTest { + private fun signer(seed: Byte) = NostrSignerInternal(KeyPair(ByteArray(32) { seed })) + + private val nostrGroupId = ByteArray(32) { 0x4d } + + private fun aGroup(agentTextStream: AgentTextStreamQuicPolicyV1? = null) = + runBlocking { + CurrentProfileGroupFactory.createGroup( + signer = signer(0x11), + nostrGroupId = nostrGroupId, + relays = listOf("wss://relay.example"), + profile = GroupProfileV1("Routing", ""), + agentTextStream = agentTextStream, + ) + } + + @Test + fun theRoutingIdComesFromTheCurrentProfileComponent() { + val group = aGroup() + assertEquals(nostrGroupId.toHexKey(), group.currentNostrGroupId()) + // The legacy extension is genuinely absent — this is not a group that + // happens to carry both. + assertNull(group.currentMarmotData()) + } + + @Test + fun aJoinerReadsTheSameRoutingIdOutOfTheWelcome() = + runBlocking { + val group = aGroup() + val inviteeSigner = signer(0x33) + val invitee = CurrentProfileGroupFactory.createKeyPackage(inviteeSigner) + + group.proposeAdd(invitee.keyPackage.toTlsBytes()) + val commit = group.commit() + val welcome = assertNotNull(commit.welcomeBytes, "adding a member must produce a Welcome") + + val joined = MlsGroup.processWelcome(welcome, invitee) + assertEquals(nostrGroupId.toHexKey(), joined.currentNostrGroupId()) + assertEquals(group.currentGroupState().profile?.name, joined.currentGroupState().profile?.name) + } + + /** + * The `0x8006` policy names MLS leaf capabilities every member must + * advertise. Our current-profile leaf advertises `receive` only, so a + * group that also requires `send` must be refused at join rather than + * joined into a state where every commit we make is rejected by peers. + */ + @Test + fun aJoinerRefusesAGroupWhoseStreamRolesItCannotFill() = + runBlocking { + val group = + aGroup( + AgentTextStreamQuicPolicyV1( + requiredMemberRoles = AgentTextStreamRolesFixture.RECEIVE_AND_SEND, + allowedMemberRoles = AgentTextStreamRolesFixture.RECEIVE_AND_SEND, + maxPlaintextFrameLen = 4096, + replayTtlSecs = 0, + paddingBucketBytes = 0, + ), + ) + val invitee = CurrentProfileGroupFactory.createKeyPackage(signer(0x44)) + group.proposeAdd(invitee.keyPackage.toTlsBytes()) + val welcome = assertNotNull(group.commit().welcomeBytes) + + val failure = assertFailsWith { MlsGroup.processWelcome(welcome, invitee) } + assertTrue( + failure.message.orEmpty().contains("agent text stream roles"), + "expected a role-capability refusal, got: ${failure.message}", + ) + } + + @Test + fun aJoinerAcceptsAGroupRequiringOnlyTheReceiveRole() = + runBlocking { + val group = aGroup(AgentTextStreamQuicPolicyV1.userToAgentDefault()) + val invitee = CurrentProfileGroupFactory.createKeyPackage(signer(0x55)) + group.proposeAdd(invitee.keyPackage.toTlsBytes()) + val welcome = assertNotNull(group.commit().welcomeBytes) + + val joined = MlsGroup.processWelcome(welcome, invitee) + assertEquals( + AgentTextStreamQuicPolicyV1.userToAgentDefault(), + joined.currentGroupState().agentTextStream, + ) + // Both sides derive the same per-epoch stream secret. + assertEquals(group.agentTextStreamSecret().toHexKey(), joined.agentTextStreamSecret().toHexKey()) + } +} + +private object AgentTextStreamRolesFixture { + const val RECEIVE_AND_SEND = 0x03 +} From 894a999689cae0a7736b438df25e3277fc37af33 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 04:55:33 +0000 Subject: [PATCH 23/79] fix(marmot): read and write group metadata through the profile in use MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Everything that touched a group's name, admins, relays or avatar went through `groupMetadata`, which decodes ONLY the legacy `0xF2EE` extension. It returns null for every current-profile group, so: - `amy marmot group show` / `list` / `admins` printed a blank name and an empty admin set; - `amy marmot await group --name X` never matched, which is what test 03 was actually reporting — we had joined MDK's group, we just could not find it by name; - the Android chatroom showed no name, no admins, no relays, no avatar; - `group rename` / `promote` / `demote` / `set-image` BOOTSTRAPPED a legacy blob and committed it into a current-profile group, so the rename appeared to work locally while every peer kept the old name. Adds `MarmotManager.groupView` (read) and `setGroupProfile` / `setGroupAdmins` / `setGroupImage` (write). The setters dispatch on the group's actual profile: a current-profile group takes an `app_data_update` naming ONE component, so a concurrent admin-policy change does not lose its work to a rename; a legacy group has no such separation and its single extension is rewritten whole. Every call site in the CLI, the Android app and the relay-subscription manager now goes through them. `createMarmotGroup` creates a CURRENT-profile group. The profile is decided once, at creation, and cannot be migrated later — a legacy group's existing leaves have no account identity proofs to add — so a group made the old way is joinable only by other legacy clients. The name and description are passed in at creation because the routing component has to exist from epoch 0 anyway: it carries the `nostr_group_id` every kind-445 event in the group is addressed to. `MarmotGroupIconUpload` gains `mediaType`. MIP-01's image blob never carried one; the current profile's `0x8002` component requires it on a present image and binds it into the AEAD's AAD, so a receiver cannot be steered into decoding the plaintext as a different type than the uploader meant. Also: a gift wrap is no longer broadcast to the public default relay set when the recipient advertised an inbox we declined to reach. "Advertised nothing" and "advertised only local-network relays" are different facts, and treating the second as the first sends someone's invite to a relay set they never chose — the opposite of what the filter is for. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/model/AccountMarmotActions.kt | 67 +++--- .../marmot/MarmotGroupEventsEoseManager.kt | 2 +- .../ui/screen/loggedIn/AccountViewModel.kt | 54 +++-- .../chats/marmotGroup/CreateGroupScreen.kt | 2 +- .../send/MarmotGroupIconUploader.kt | 10 + .../amethyst/cli/commands/AwaitCommands.kt | 8 +- .../cli/commands/GroupMembershipCommands.kt | 9 +- .../cli/commands/GroupMetadataCommands.kt | 66 +++--- .../cli/commands/GroupReadCommands.kt | 6 +- .../amethyst/commons/marmot/MarmotManager.kt | 192 ++++++++++++++---- .../marmot/appComponents/AdminPolicyV1.kt | 4 + .../marmot/mls/group/MlsGroupManager.kt | 23 +++ 12 files changed, 306 insertions(+), 137 deletions(-) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt index f374d93f82..a00ff37947 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt @@ -20,6 +20,7 @@ */ package com.vitorpamplona.amethyst.model +import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageEvent import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageFetcher import com.vitorpamplona.quartz.nip01Core.core.Event @@ -53,7 +54,7 @@ class AccountMarmotActions( fun marmotGroupRelays(nostrGroupId: HexKey): Set { val groupRelays = account.marmotManager - ?.groupMetadata(nostrGroupId) + ?.groupView(nostrGroupId) ?.relays ?.mapNotNull { com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer @@ -386,12 +387,33 @@ class AccountMarmotActions( } /** - * Create a new Marmot MLS group. + * Create a new Marmot MLS group under the CURRENT profile. + * + * Not the legacy `0xF2EE` shape. A current-profile peer refuses a leaf + * with no account identity proof, and a legacy group cannot be upgraded + * into one afterwards — its existing leaves have no proofs to add — so the + * profile is decided here, once, and never migrated. Groups made the old + * way are joinable only by other legacy clients. + * + * The name, description and avatar arrive later through + * `updateMarmotGroupMetadata`; the routing component has to exist from + * epoch 0 because it carries the `nostr_group_id` every kind-445 event in + * this group is addressed to. */ - suspend fun createMarmotGroup(nostrGroupId: HexKey) { + suspend fun createMarmotGroup( + nostrGroupId: HexKey, + name: String = "", + description: String = "", + ) { val manager = account.marmotManager ?: return if (!account.isWriteable()) return - manager.createGroup(nostrGroupId) + manager.createCurrentProfileGroup( + nostrGroupId = nostrGroupId, + relays = + account.outboxRelays.flow.value + .map { it.url }, + profile = if (name.isEmpty() && description.isEmpty()) null else GroupProfileV1(name, description), + ) // Creator owns the group — mark it as "known" immediately so it // doesn't appear under "New Requests" before the first message. account.marmotGroupList.markAsKnown(nostrGroupId) @@ -416,9 +438,9 @@ class AccountMarmotActions( val manager = account.marmotManager ?: return if (!account.isWriteable()) return - val metadata = manager.groupMetadata(nostrGroupId) - if (metadata != null && metadata.adminPubkeys.contains(account.signer.pubKey)) { - val remaining = metadata.adminPubkeys.filter { it != account.signer.pubKey }.toMutableList() + val view = manager.groupView(nostrGroupId) + if (view != null && view.adminPubkeys.contains(account.signer.pubKey)) { + val remaining = view.adminPubkeys.filter { it != account.signer.pubKey }.toMutableList() // MIP-03 also rejects any GCE commit that leaves the group with zero // admins. If we're the only one, promote an arbitrary non-self // member to admin before stepping down. @@ -431,8 +453,7 @@ class AccountMarmotActions( if (heir != null) remaining.add(heir) } if (remaining.isNotEmpty()) { - val demoted = metadata.copy(adminPubkeys = remaining) - manager.updateGroupMetadata(nostrGroupId, demoted, groupRelays.toList()) + manager.setGroupAdmins(nostrGroupId, remaining, groupRelays.toList()) } } @@ -541,17 +562,10 @@ class AccountMarmotActions( val manager = account.marmotManager ?: return if (!account.isWriteable()) return - val metadata = manager.groupMetadata(nostrGroupId) ?: return - if (metadata.adminPubkeys.contains(targetPubKey)) return + val view = manager.groupView(nostrGroupId) ?: return + if (view.adminPubkeys.contains(targetPubKey)) return - val outboxRelayStrings = - account.outboxRelays.flow.value - .map { it.url } - val updated = - metadata - .copy(adminPubkeys = metadata.adminPubkeys + targetPubKey) - .withMergedRelays(outboxRelayStrings) - updateMarmotGroupMetadata(nostrGroupId, updated, groupRelays) + manager.setGroupAdmins(nostrGroupId, view.adminPubkeys + targetPubKey, groupRelays.toList()) } /** @@ -568,20 +582,13 @@ class AccountMarmotActions( val manager = account.marmotManager ?: return if (!account.isWriteable()) return - val metadata = manager.groupMetadata(nostrGroupId) ?: return - if (!metadata.adminPubkeys.contains(targetPubKey)) return - val remaining = metadata.adminPubkeys.filter { it != targetPubKey } + val view = manager.groupView(nostrGroupId) ?: return + if (!view.adminPubkeys.contains(targetPubKey)) return + val remaining = view.adminPubkeys.filter { it != targetPubKey } check(remaining.isNotEmpty()) { "Cannot revoke the last admin from a Marmot group (MIP-03)" } - val outboxRelayStrings = - account.outboxRelays.flow.value - .map { it.url } - val updated = - metadata - .copy(adminPubkeys = remaining) - .withMergedRelays(outboxRelayStrings) - updateMarmotGroupMetadata(nostrGroupId, updated, groupRelays) + manager.setGroupAdmins(nostrGroupId, remaining, groupRelays.toList()) } } diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/service/relayClient/reqCommand/account/marmot/MarmotGroupEventsEoseManager.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/service/relayClient/reqCommand/account/marmot/MarmotGroupEventsEoseManager.kt index b0e1359b5e..2081b2add3 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/service/relayClient/reqCommand/account/marmot/MarmotGroupEventsEoseManager.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/service/relayClient/reqCommand/account/marmot/MarmotGroupEventsEoseManager.kt @@ -77,7 +77,7 @@ class MarmotGroupEventsEoseManager( } ?: continue // Use group-specific relays from MLS metadata; fall back to home relays - val metadata = manager.groupMetadata(groupId) + val metadata = manager.groupView(groupId) val groupRelays = metadata ?.relays diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt index 94b270b523..e3262b35e5 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt @@ -115,11 +115,12 @@ import com.vitorpamplona.quartz.experimental.clink.pointers.NDebit import com.vitorpamplona.quartz.experimental.ephemChat.chat.RoomId import com.vitorpamplona.quartz.experimental.interactiveStories.InteractiveStoryBaseEvent import com.vitorpamplona.quartz.experimental.interactiveStories.InteractiveStoryReadingStateEvent -import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData +import com.vitorpamplona.quartz.marmot.appComponents.GroupBlossomImageV1 import com.vitorpamplona.quartz.nip01Core.core.Address import com.vitorpamplona.quartz.nip01Core.core.AddressableEvent import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair import com.vitorpamplona.quartz.nip01Core.hints.EventHintBundle @@ -2452,8 +2453,12 @@ class AccountViewModel( fun marmotMediaExporterSecret(nostrGroupId: String): ByteArray? = account.marmotManager?.mediaExporterSecret(nostrGroupId) - suspend fun createMarmotGroup(nostrGroupId: String) { - account.marmot.createMarmotGroup(nostrGroupId) + suspend fun createMarmotGroup( + nostrGroupId: String, + name: String = "", + description: String = "", + ) { + account.marmot.createMarmotGroup(nostrGroupId, name, description) } suspend fun publishMarmotKeyPackage() { @@ -2549,35 +2554,26 @@ class AccountViewModel( // overlap, so kind:445 messages never reach the other side. The // welcome carries the metadata, so the invitee learns the relays at // join time. - val outboxRelayStrings = - account.outboxRelays.flow.value - .map { it.url } - val currentMetadata = account.marmotManager?.groupMetadata(nostrGroupId) - val baseMetadata = - currentMetadata - ?.copy(name = name, description = description) - ?.withMergedRelays(outboxRelayStrings) - ?: MarmotGroupData.bootstrap( - nostrGroupId = nostrGroupId, - creatorPubKey = account.signer.pubKey, - outboxRelays = outboxRelayStrings, - name = name, - description = description, - ) - val updatedMetadata = - when (icon) { - is MarmotGroupIconChange.Keep -> baseMetadata - is MarmotGroupIconChange.Clear -> baseMetadata.withoutImage() - is MarmotGroupIconChange.Set -> - baseMetadata.withImage( - imageHash = icon.upload.imageHash, + val manager = account.marmotManager ?: return + val relays = account.marmot.marmotGroupRelays(nostrGroupId) + + manager.setGroupProfile(nostrGroupId, name, description, relays.toList()) + when (icon) { + is MarmotGroupIconChange.Keep -> Unit + is MarmotGroupIconChange.Clear -> manager.setGroupImage(nostrGroupId, null, relays.toList()) + is MarmotGroupIconChange.Set -> + manager.setGroupImage( + nostrGroupId, + GroupBlossomImageV1( + imageHash = icon.upload.imageHash.hexToByteArray(), imageKey = icon.upload.imageKey, imageNonce = icon.upload.imageNonce, imageUploadKey = icon.upload.imageUploadKey, - ) - } - val relays = account.marmot.marmotGroupRelays(nostrGroupId) - account.marmot.updateMarmotGroupMetadata(nostrGroupId, updatedMetadata, relays) + mediaType = icon.upload.mediaType, + ), + relays.toList(), + ) + } } override fun onCleared() { diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/CreateGroupScreen.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/CreateGroupScreen.kt index 114cd8041c..ebf7997f4d 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/CreateGroupScreen.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/CreateGroupScreen.kt @@ -87,7 +87,7 @@ fun CreateGroupScreen( scope.launch(Dispatchers.IO) { try { val nostrGroupId = RandomInstance.bytes(32).toHexKey() - accountViewModel.createMarmotGroup(nostrGroupId) + accountViewModel.createMarmotGroup(nostrGroupId, groupName.trim(), groupDescription.trim()) // Encrypt + upload the picked icon (if any) before the metadata commit, // so its parameters land in the group's MarmotGroupData extension. val iconChange = diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotGroupIconUploader.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotGroupIconUploader.kt index f207c99a99..accf66d404 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotGroupIconUploader.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotGroupIconUploader.kt @@ -51,6 +51,15 @@ class MarmotGroupIconUpload( val imageNonce: ByteArray, /** 32-byte HKDF seed for the Blossom-auth keypair (MIP-01 v2). */ val imageUploadKey: ByteArray, + /** + * Media type of the DECRYPTED image. + * + * MIP-01's blob never carried one, but the current profile's `0x8002` + * component requires it on a present image — and it is bound into the + * AEAD's AAD there, so a receiver cannot be steered into decoding the + * plaintext as a different type than the uploader meant. + */ + val mediaType: String, ) /** @@ -123,6 +132,7 @@ class MarmotGroupIconUploader( imageKey = cipher.imageKey, imageNonce = cipher.imageNonce, imageUploadKey = uploadKeySeed, + mediaType = uploadMime, ) } diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/AwaitCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/AwaitCommands.kt index b0536cf90a..6e118ec485 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/AwaitCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/AwaitCommands.kt @@ -145,14 +145,14 @@ object AwaitCommands { ctx.syncIncoming(timeoutMs = 3_000) val match = ctx.marmot.activeGroupIds().firstOrNull { gid -> - wantedName == null || ctx.marmot.groupMetadata(gid)?.name == wantedName + wantedName == null || ctx.marmot.groupView(gid)?.name == wantedName } if (match != null) { Output.emit( mapOf( "group_id" to match, "mls_group_id" to ctx.marmot.mlsGroupIdHex(match), - "name" to (ctx.marmot.groupMetadata(match)?.name ?: ""), + "name" to (ctx.marmot.groupView(match)?.name ?: ""), "epoch" to ctx.marmot.groupEpoch(match), ), ) @@ -190,7 +190,7 @@ object AwaitCommands { if (!ctx.marmot.isMember(gid)) { null } else if (ctx.marmot - .groupMetadata(gid) + .groupView(gid) ?.adminPubkeys ?.contains(target) == true ) { @@ -215,7 +215,7 @@ object AwaitCommands { val deadline = System.currentTimeMillis() + timeoutSecs * 1000 while (System.currentTimeMillis() < deadline) { ctx.syncIncoming(timeoutMs = 3_000) - val name = ctx.marmot.groupMetadata(gid)?.name + val name = ctx.marmot.groupView(gid)?.name if (name == wantedName) { Output.emit(mapOf("group_id" to gid, "name" to name, "epoch" to ctx.marmot.groupEpoch(gid))) return 0 diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMembershipCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMembershipCommands.kt index 593de7d274..d8041a4ecf 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMembershipCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMembershipCommands.kt @@ -77,10 +77,10 @@ object GroupMembershipCommands { // leave the group with zero admins (admin depletion). If we're // the only admin, hand admin to another member first. val demoteEventId: String? = - ctx.marmot.groupMetadata(gid)?.let { metadata -> - if (!metadata.adminPubkeys.contains(ctx.identity.pubKeyHex)) return@let null + ctx.marmot.groupView(gid)?.let { view -> + if (!view.adminPubkeys.contains(ctx.identity.pubKeyHex)) return@let null - val newAdmins = metadata.adminPubkeys.filter { it != ctx.identity.pubKeyHex }.toMutableList() + val newAdmins = view.adminPubkeys.filter { it != ctx.identity.pubKeyHex }.toMutableList() if (newAdmins.isEmpty()) { val heir = ctx.marmot @@ -90,8 +90,7 @@ object GroupMembershipCommands { ?: return@let null // solo group — skip demote, let MLS state cleanup handle it newAdmins.add(heir) } - val demoted = metadata.copy(adminPubkeys = newAdmins) - val demoteCommit = ctx.marmot.updateGroupMetadata(gid, demoted) + val demoteCommit = ctx.marmot.setGroupAdmins(gid, newAdmins, targets.toList()) ctx.publish(demoteCommit.signedEvent, targets) demoteCommit.signedEvent.id } diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt index 5b5d749c0f..1b3ea5d64c 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt @@ -24,12 +24,15 @@ import com.vitorpamplona.amethyst.cli.Args import com.vitorpamplona.amethyst.cli.Context import com.vitorpamplona.amethyst.cli.DataDir import com.vitorpamplona.amethyst.cli.Output +import com.vitorpamplona.amethyst.commons.marmot.MarmotManager import com.vitorpamplona.amethyst.commons.service.upload.BlossomAuth import com.vitorpamplona.amethyst.commons.service.upload.BlossomClient import com.vitorpamplona.amethyst.commons.util.deleteOrWarn -import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData +import com.vitorpamplona.quartz.marmot.OutboundGroupEvent +import com.vitorpamplona.quartz.marmot.appComponents.GroupBlossomImageV1 import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupImageEncryption import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal import java.io.File @@ -44,7 +47,9 @@ object GroupMetadataCommands { rest: Array, ): Int { if (rest.size < 2) return Output.error("bad_args", "group rename ") - return edit(dataDir, rest[0]) { _, cur -> cur.copy(name = rest[1]) } + return commit(dataDir, rest[0]) { ctx, gid, view -> + ctx.marmot.setGroupProfile(gid, rest[1], view.description) + } } suspend fun promote( @@ -52,11 +57,9 @@ object GroupMetadataCommands { rest: Array, ): Int { if (rest.size < 2) return Output.error("bad_args", "group promote ") - return edit(dataDir, rest[0]) { ctx, cur -> + return commit(dataDir, rest[0]) { ctx, gid, view -> val newAdmin = ctx.requireUserHex(rest[1]) - val admins = cur.adminPubkeys.toMutableList() - if (newAdmin !in admins) admins.add(newAdmin) - cur.copy(adminPubkeys = admins) + ctx.marmot.setGroupAdmins(gid, (view.adminPubkeys + newAdmin).distinct()) } } @@ -65,10 +68,9 @@ object GroupMetadataCommands { rest: Array, ): Int { if (rest.size < 2) return Output.error("bad_args", "group demote ") - return edit(dataDir, rest[0]) { ctx, cur -> + return commit(dataDir, rest[0]) { ctx, gid, view -> val target = ctx.requireUserHex(rest[1]) - val admins = cur.adminPubkeys.filter { it != target } - cur.copy(adminPubkeys = admins) + ctx.marmot.setGroupAdmins(gid, view.adminPubkeys.filter { it != target }) } } @@ -114,8 +116,17 @@ object GroupMetadataCommands { } } - return edit(dataDir, gid, mapOf("image_hash" to enc.imageHash, "image_url" to uploadedUrl)) { _, cur -> - cur.withImage(enc.imageHash, enc.imageKey, enc.imageNonce, uploadKeySeed) + return commit(dataDir, gid, mapOf("image_hash" to enc.imageHash, "image_url" to uploadedUrl)) { ctx, resolved, _ -> + ctx.marmot.setGroupImage( + resolved, + GroupBlossomImageV1( + imageHash = enc.imageHash.hexToByteArray(), + imageKey = enc.imageKey, + imageNonce = enc.imageNonce, + imageUploadKey = uploadKeySeed, + mediaType = args.flag("mime") ?: "image/jpeg", + ), + ) } } @@ -125,40 +136,43 @@ object GroupMetadataCommands { rest: Array, ): Int { if (rest.isEmpty()) return Output.error("bad_args", "group clear-image ") - return edit(dataDir, rest[0]) { _, cur -> cur.withoutImage() } + return commit(dataDir, rest[0]) { ctx, gid, _ -> ctx.marmot.setGroupImage(gid, null) } } - private suspend fun edit( + /** + * Run one metadata commit and report it. + * + * The mutation goes through [MarmotManager]'s profile-agnostic setters + * rather than being applied to a legacy `MarmotGroupData` here. Building + * that blob locally was the bug: `groupMetadata` is null for every + * current-profile group, so this bootstrapped a legacy `0xF2EE` extension + * and committed it INTO a current-profile group — the rename appeared to + * succeed locally and every peer kept showing the old name. + */ + private suspend fun commit( dataDir: DataDir, rawGid: HexKey, extra: Map = emptyMap(), - mutate: suspend (Context, MarmotGroupData) -> MarmotGroupData, + mutate: suspend (Context, HexKey, MarmotManager.GroupView) -> OutboundGroupEvent, ): Int { Context.open(dataDir).use { ctx -> ctx.prepare() val gid = ctx.resolveGroupId(rawGid) ctx.syncIncoming() if (!ctx.marmot.isMember(gid)) return Output.error("not_member", "not a member of group $gid") - val outboxUrls = ctx.outboxRelays().map { it.url } - val cur = - ctx.marmot.groupMetadata(gid) - ?: MarmotGroupData.bootstrap( - nostrGroupId = gid, - creatorPubKey = ctx.identity.pubKeyHex, - outboxRelays = outboxUrls, - ) - val updated = mutate(ctx, cur).withMergedRelays(outboxUrls) + val view = ctx.marmot.groupView(gid) ?: return Output.error("not_member", "not a member of group $gid") - val commit = ctx.marmot.updateGroupMetadata(gid, updated) + val commit = mutate(ctx, gid, view) val targets = ctx.marmotGroupRelays(gid).ifEmpty { ctx.outboxRelays() } val ack = ctx.publish(commit.signedEvent, targets) RawEventSupport.publishGuard(ack, commit.signedEvent.id)?.let { return it } + val after = ctx.marmot.groupView(gid) Output.emit( mapOf( "group_id" to gid, - "name" to updated.name, - "admins" to updated.adminPubkeys, + "name" to (after?.name ?: view.name), + "admins" to (after?.adminPubkeys ?: view.adminPubkeys), "epoch" to ctx.marmot.groupEpoch(gid), "commit_event_id" to commit.signedEvent.id, ) + RawEventSupport.ackFields(ack) + extra, diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupReadCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupReadCommands.kt index 46e06da5df..114118aff9 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupReadCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupReadCommands.kt @@ -35,7 +35,7 @@ object GroupReadCommands { val ids = ctx.marmot.activeGroupIds() val items = ids.map { id -> - val m = ctx.marmot.groupMetadata(id) + val m = ctx.marmot.groupView(id) mapOf( "group_id" to id, "name" to (m?.name ?: ""), @@ -58,7 +58,7 @@ object GroupReadCommands { val gid = ctx.resolveGroupId(rest[0]) ctx.syncIncoming() if (!ctx.marmot.isMember(gid)) return Output.error("not_member", gid) - val meta = ctx.marmot.groupMetadata(gid) + val meta = ctx.marmot.groupView(gid) val members = ctx.marmot.memberPubkeys(gid).map { mapOf("pubkey" to it.pubkey, "leaf_index" to it.leafIndex) @@ -109,7 +109,7 @@ object GroupReadCommands { val gid = ctx.resolveGroupId(rest[0]) ctx.syncIncoming() if (!ctx.marmot.isMember(gid)) return Output.error("not_member", gid) - val m = ctx.marmot.groupMetadata(gid) + val m = ctx.marmot.groupView(gid) Output.emit(mapOf("group_id" to gid, "admins" to (m?.adminPubkeys ?: emptyList()))) return 0 } diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index a2e8ecfc9c..08b968cf48 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -30,7 +30,9 @@ import com.vitorpamplona.quartz.marmot.MarmotWelcomeSender import com.vitorpamplona.quartz.marmot.OutboundGroupEvent import com.vitorpamplona.quartz.marmot.WelcomeDelivery import com.vitorpamplona.quartz.marmot.WelcomeResult +import com.vitorpamplona.quartz.marmot.appComponents.AdminPolicyV1 import com.vitorpamplona.quartz.marmot.appComponents.CurrentProfileGroupFactory +import com.vitorpamplona.quartz.marmot.appComponents.GroupBlossomImageV1 import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 import com.vitorpamplona.quartz.marmot.appComponents.MarmotGroupState import com.vitorpamplona.quartz.marmot.appComponents.MessageRetentionV1 @@ -817,6 +819,146 @@ class MarmotManager( }.event } + /** + * A group's metadata read through whichever profile it actually uses. + * + * Every caller that wants a name, an admin list or an avatar wants this, + * not [groupMetadata]: the legacy accessor returns null for every + * current-profile group, so the UI, the CLI and the await verbs all showed + * a blank name and an empty admin set for groups that were perfectly fine. + */ + class GroupView( + val name: String, + val description: String, + val adminPubkeys: List, + val relays: List, + val image: MarmotGroupImage?, + /** True when the group requires `0x8009` — see [MarmotGroupState.isCurrentProfile]. */ + val isCurrentProfile: Boolean, + ) + + fun groupView(nostrGroupId: HexKey): GroupView? { + val group = groupManager.getGroup(nostrGroupId) ?: return null + val state = group.currentGroupState() + val legacy = MarmotGroupData.fromExtensions(group.extensions) + val image = state.image + return GroupView( + name = state.profile?.name?.takeIf { it.isNotEmpty() } ?: legacy?.name.orEmpty(), + description = state.profile?.description?.takeIf { it.isNotEmpty() } ?: legacy?.description.orEmpty(), + adminPubkeys = state.adminPolicy?.adminHexKeys ?: legacy?.adminPubkeys.orEmpty(), + relays = state.routing?.relays ?: legacy?.relays.orEmpty(), + image = + when { + image?.imageHash != null -> + MarmotGroupImage(image.imageHash!!.toHexKey(), image.imageKey!!, image.imageNonce!!) + + legacy?.hasImage() == true -> + MarmotGroupImage(legacy.imageHash!!, legacy.imageKey!!, legacy.imageNonce!!) + + else -> null + }, + isCurrentProfile = state.isCurrentProfile, + ) + } + + /** + * Rename a group, writing to whichever carrier the group actually uses. + * + * A current-profile group takes an `app_data_update` naming ONLY the + * profile component, so a concurrent admin-policy change does not lose its + * work to this one. A legacy group has no such separation — its single + * `0xF2EE` extension is rewritten whole. + */ + suspend fun setGroupProfile( + nostrGroupId: HexKey, + name: String, + description: String, + relays: List = groupRelays(nostrGroupId), + ): OutboundGroupEvent { + val view = groupView(nostrGroupId) ?: throw IllegalStateException("Not a member of group $nostrGroupId") + if (!view.isCurrentProfile) { + val legacy = + groupMetadata(nostrGroupId) + ?: throw IllegalStateException("Legacy group $nostrGroupId has no MarmotGroupData") + return updateGroupMetadata(nostrGroupId, legacy.copy(name = name, description = description), relays) + } + return commitAndPublish(nostrGroupId, relays) { + groupManager.stageAppDataUpdate( + nostrGroupId, + GroupProfileV1.COMPONENT_ID, + GroupProfileV1(name, description).encode(), + ) + }.event + } + + /** + * Replace the group's admin set, writing to whichever carrier the group uses. + * + * Refuses an empty set. Both profiles reject a group with no admins — a + * groupthat can never again change its own state is not a state anyone + * can recover from, so the check belongs here rather than at each caller. + */ + suspend fun setGroupAdmins( + nostrGroupId: HexKey, + admins: List, + relays: List = groupRelays(nostrGroupId), + ): OutboundGroupEvent { + require(admins.isNotEmpty()) { "a Marmot group cannot be left with no admins" } + val view = groupView(nostrGroupId) ?: throw IllegalStateException("Not a member of group $nostrGroupId") + if (!view.isCurrentProfile) { + val legacy = + groupMetadata(nostrGroupId) + ?: throw IllegalStateException("Legacy group $nostrGroupId has no MarmotGroupData") + return updateGroupMetadata(nostrGroupId, legacy.copy(adminPubkeys = admins), relays) + } + return commitAndPublish(nostrGroupId, relays) { + groupManager.stageAppDataUpdate( + nostrGroupId, + AdminPolicyV1.COMPONENT_ID, + AdminPolicyV1.ofHex(admins).encode(), + ) + }.event + } + + /** + * Set or clear the group avatar, writing to whichever carrier the group uses. + * + * [image] null clears it: the current profile removes the `0x8002` + * component outright rather than storing an "absent" encoding, so a group + * with no avatar carries no avatar state. + */ + suspend fun setGroupImage( + nostrGroupId: HexKey, + image: GroupBlossomImageV1?, + relays: List = groupRelays(nostrGroupId), + ): OutboundGroupEvent { + val view = groupView(nostrGroupId) ?: throw IllegalStateException("Not a member of group $nostrGroupId") + if (!view.isCurrentProfile) { + val legacy = + groupMetadata(nostrGroupId) + ?: throw IllegalStateException("Legacy group $nostrGroupId has no MarmotGroupData") + val updated = + if (image?.imageHash == null) { + legacy.withoutImage() + } else { + legacy.withImage( + image.imageHash!!.toHexKey(), + image.imageKey!!, + image.imageNonce!!, + image.imageUploadKey!!, + ) + } + return updateGroupMetadata(nostrGroupId, updated, relays) + } + return commitAndPublish(nostrGroupId, relays) { + groupManager.stageAppDataUpdate( + nostrGroupId, + GroupBlossomImageV1.COMPONENT_ID, + image?.encode(), + ) + }.event + } + // --- KeyPackage Management --- /** @@ -1027,44 +1169,18 @@ class MarmotManager( nostrGroupId: HexKey, chatroom: MarmotGroupChatroom, ) { - // Read the current profile's components first, then the legacy - // 0xF2EE extension. Reading only the legacy one left every - // current-profile group with a blank name, no admins, no relays and no - // avatar in the UI — the group worked, it just looked empty. - val state = groupState(nostrGroupId) - val legacy = groupMetadata(nostrGroupId) - - val name = state?.profile?.name?.takeIf { it.isNotEmpty() } ?: legacy?.name - if (!name.isNullOrEmpty()) chatroom.displayName.value = name - - val description = state?.profile?.description?.takeIf { it.isNotEmpty() } ?: legacy?.description - if (!description.isNullOrEmpty()) chatroom.description.value = description - - val admins = state?.adminPolicy?.adminHexKeys ?: legacy?.adminPubkeys - if (admins != null) chatroom.adminPubkeys.value = admins - - val relays = state?.routing?.relays ?: legacy?.relays - if (relays != null) chatroom.relays.value = relays - - val image = state?.image - chatroom.image.value = - when { - image?.imageHash != null -> - MarmotGroupImage( - hash = image.imageHash!!.toHexKey(), - key = image.imageKey!!, - nonce = image.imageNonce!!, - ) - - legacy?.hasImage() == true -> - MarmotGroupImage( - hash = legacy.imageHash!!, - key = legacy.imageKey!!, - nonce = legacy.imageNonce!!, - ) - - else -> null - } + // Read through [groupView], not [groupMetadata]: the legacy accessor + // returns null for every current-profile group, which left them with a + // blank name, no admins, no relays and no avatar in the UI. The group + // worked; it just looked empty. + val view = groupView(nostrGroupId) + if (view != null) { + if (view.name.isNotEmpty()) chatroom.displayName.value = view.name + if (view.description.isNotEmpty()) chatroom.description.value = view.description + chatroom.adminPubkeys.value = view.adminPubkeys + chatroom.relays.value = view.relays + chatroom.image.value = view.image + } val previousCount = chatroom.members.value.size val members = memberPubkeys(nostrGroupId) chatroom.members.value = members diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AdminPolicyV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AdminPolicyV1.kt index 6f4d083f87..b3041004a3 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AdminPolicyV1.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AdminPolicyV1.kt @@ -23,6 +23,7 @@ package com.vitorpamplona.quartz.marmot.appComponents import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray import com.vitorpamplona.quartz.nip01Core.core.toHexKey /** @@ -119,6 +120,9 @@ data class AdminPolicyV1( return AdminPolicyV1(unique) } + /** Build from hex account keys, sorting and de-duplicating. */ + fun ofHex(keys: Collection): AdminPolicyV1 = of(keys.map { it.hexToByteArray() }) + fun decode(bytes: ByteArray): AdminPolicyV1 { val reader = TlsReader(bytes) val flat = reader.readOpaqueVarInt() diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt index e21eae6772..c5cdd43c14 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt @@ -439,6 +439,29 @@ class MlsGroupManager( } } + /** + * Stage an `app_data_update` proposal + Commit for one component. + * + * The current profile's carrier for group metadata. A GroupContextExtensions + * change rewrites the WHOLE extension set, which is what MIP-01 had to do + * with its single monolithic blob; `app_data_update` names one component + * id, so two admins changing different components do not clobber each + * other's work just by racing. + * + * Passing null [data] removes the component. + */ + suspend fun stageAppDataUpdate( + nostrGroupId: HexKey, + componentId: Int, + data: ByteArray?, + ): StagedCommit { + requireAdminForExtensionChange(requireGroup(nostrGroupId)) + return stage(nostrGroupId) { clone -> + if (data == null) clone.proposeAppDataRemoval(componentId) else clone.proposeAppDataUpdate(componentId, data) + clone.commit() + } + } + /** Stage a self-update / empty Commit. See [StagedCommit]. */ suspend fun stageCommit(nostrGroupId: HexKey): StagedCommit = stage(nostrGroupId) { it.commit() } From b29decc620a8efe30e629584541874242f2a9cc0 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 06:19:10 +0000 Subject: [PATCH 24/79] fix(marmot): decrypt an UpdatePath at the node we actually hold a key for MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit RFC 9420 §7.6 does not say the committer encrypts the path secret to your leaf. It says the committer encrypts one secret per node in the copath RESOLUTION, and each member decrypts at whichever of those nodes it holds a private key for. A merged subtree resolves to its PARENT, so from three members on the ciphertext meant for us stops naming our leaf at all. We kept only our own leaf key and looked ourselves up by leaf index. That worked for two members and failed for three, which is exactly why it survived every test we own: two-party tests never produce the case. MDK did, on its first commit after a three-member Add: UpdatePath at common ancestor carries no ciphertext for us (my_leaf=1, my_node=2, resolution=[1], encrypted_path_secrets=1) Node 1 was the parent we had held a key for since the commit that merged us, and we had thrown it away. `MlsGroup` now keeps the private halves for its whole direct path — filled on our own commits from the path secrets we mint, and on inbound commits from the secret we recover at the common ancestor — and scans the resolution for a key it holds rather than assuming its leaf. Candidates are tried in order rather than committing to the first: an Add or Remove renumbers nodes, and a stale key fails the AEAD instead of producing a wrong secret, so trying the next one is exact. `MlsGroupState` v3 persists them; losing them to a restart would make the same group stop decrypting on relaunch with nothing tying the failure to the restart. Also completes the durability and lifecycle work: - `PublishOutcome.UNKNOWN`. A non-confirmed publish used to discard its obligation and return the group to Stable, which let a REPLACEMENT commit be prepared for the same epoch. "No OK arrived" is not "no peer took it" — a timeout or a dropped connection leaves it unknown, and a second commit for an epoch a peer already holds is precisely the fork this gate exists to prevent. The obligation now stays durable and the group stays held. `FAILED` remains for the case where retrying is genuinely impossible. - Publish obligations are durable in the CLI and on Android, and `restoreAll` republishes each unresolved one VERBATIM. The same bytes, not a fresh commit: a peer that already has the event deduplicates it. - `Disbanded` and `Unrecoverable` now gate rather than describe. Convergence terminalizes a group when an applied commit's lifecycle component says so, and marks one unrecoverable when a selected branch cannot be rebuilt from retained material — the one thing a client must not do there is keep its own losing branch and call that settled. Outbound work and inbound application are both refused in those states, and `MarmotManager.lifecycle` now merges the publish gate's view with convergence's instead of reading only the former (which reported Stable for a disbanded group). - Durable ingest markers. A relay `since` cursor cannot skip a backdated event, and NIP-59 wraps are backdated by up to two days on purpose, so every wrap in that band was unwrapped, decrypted and re-decided on every single sync — forever. Only outcomes that cannot change are marked: a Welcome we joined from, and one naming a KeyPackage whose private half we never held. An event that is merely undecryptable right now is not marked, because a kind-445 under a future epoch becomes readable the moment its commit arrives. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../vitorpamplona/amethyst/model/Account.kt | 14 ++ .../model/accountsCache/AccountCacheState.kt | 30 +++ .../model/marmot/AndroidIngestDedupStore.kt | 90 +++++++ .../marmot/AndroidPublishObligationStore.kt | 121 +++++++++ .../loggedIn/DecryptAndIndexProcessor.kt | 11 + .../com/vitorpamplona/amethyst/cli/Config.kt | 11 + .../com/vitorpamplona/amethyst/cli/Context.kt | 6 + .../amethyst/cli/stores/FileStores.kt | 83 +++++++ .../amethyst/commons/marmot/MarmotIngest.kt | 26 +- .../amethyst/commons/marmot/MarmotManager.kt | 155 +++++++++++- .../marmot/MarmotPublishBeforeApplyTest.kt | 38 ++- .../marmot/MarmotPublishDurabilityTest.kt | 233 ++++++++++++++++++ quartz/plans/2026-09-08-marmot-spec-resync.md | 107 +++++--- .../quartz/marmot/MarmotInboundProcessor.kt | 24 ++ .../quartz/marmot/MarmotIngestDedupStore.kt | 60 +++++ .../quartz/marmot/mls/group/MlsGroup.kt | 124 +++++++++- .../quartz/marmot/mls/group/MlsGroupState.kt | 40 ++- .../protocolCore/MarmotConvergenceEngine.kt | 71 +++++- .../marmot/protocolCore/MarmotPublishGate.kt | 31 ++- .../quartz/marmot/mls/MlsGroupStateTest.kt | 6 +- .../mls/group/UpdatePathAncestorTest.kt | 134 ++++++++++ 21 files changed, 1341 insertions(+), 74 deletions(-) create mode 100644 amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidIngestDedupStore.kt create mode 100644 amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidPublishObligationStore.kt create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishDurabilityTest.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotIngestDedupStore.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/UpdatePathAncestorTest.kt diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt index 09d44fd9bf..b9575826f1 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt @@ -375,6 +375,18 @@ class Account( val mlsGroupStateStore: MlsGroupStateStore? = null, val marmotMessageStore: com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore? = null, val marmotKeyPackageStore: com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore? = null, + /** + * Durable publish obligations. Null means publish-before-apply does not + * survive a restart, so a commit interrupted mid-publish is replaced by a + * fresh one for the same epoch — a fork against the peers that took the + * first. + */ + val marmotPublishObligationStore: com.vitorpamplona.quartz.marmot.protocolCore.MarmotPublishObligationStore? = null, + /** + * Durable "already decided" markers for inbound events. Null means every + * backdated gift wrap is re-unwrapped on every sync. + */ + val marmotIngestDedupStore: com.vitorpamplona.quartz.marmot.MarmotIngestDedupStore? = null, val powQueue: () -> PoWPublishQueue? = { null }, relayAuthPermissionStore: RelayAuthPermissionStore = InMemoryRelayAuthPermissionStore(), signerPermissionStore: NostrSignerPermissionStore = InMemoryNostrSignerPermissionStore(), @@ -935,6 +947,8 @@ class Account( // acknowledged accept" rule; a plain `publish` would report // success for bytes nobody took. MarmotPublisher { event, relays -> client.publishAndConfirm(event, relays) }, + marmotPublishObligationStore, + marmotIngestDedupStore, scope = scope, ) } diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/accountsCache/AccountCacheState.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/accountsCache/AccountCacheState.kt index 0cb125444a..4a8f0f0b0a 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/accountsCache/AccountCacheState.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/accountsCache/AccountCacheState.kt @@ -32,9 +32,11 @@ import com.vitorpamplona.amethyst.commons.service.pow.PoWPublishQueue import com.vitorpamplona.amethyst.model.Account import com.vitorpamplona.amethyst.model.AccountSettings import com.vitorpamplona.amethyst.model.LocalCache +import com.vitorpamplona.amethyst.model.marmot.AndroidIngestDedupStore import com.vitorpamplona.amethyst.model.marmot.AndroidKeyPackageBundleStore import com.vitorpamplona.amethyst.model.marmot.AndroidMarmotMessageStore import com.vitorpamplona.amethyst.model.marmot.AndroidMlsGroupStateStore +import com.vitorpamplona.amethyst.model.marmot.AndroidPublishObligationStore import com.vitorpamplona.amethyst.service.location.LocationState import com.vitorpamplona.amethyst.service.relayClient.authCommand.model.DataStoreRelayAuthPermissionStore import com.vitorpamplona.quartz.nip01Core.core.HexKey @@ -266,6 +268,32 @@ class AccountCacheState( null } + val marmotPublishObligationStore = + try { + AndroidPublishObligationStore(accountDir) + } catch (e: Exception) { + Log.e( + "AccountCacheState", + "Failed to initialize AndroidPublishObligationStore " + + "(a Marmot commit interrupted mid-publish will NOT be retried after a restart)", + e, + ) + null + } + + val marmotIngestDedupStore = + try { + AndroidIngestDedupStore(accountDir) + } catch (e: Exception) { + Log.e( + "AccountCacheState", + "Failed to initialize AndroidIngestDedupStore " + + "(every backdated gift wrap will be re-decided on each sync)", + e, + ) + null + } + // Per-account NIP-42 ALLOW/DENY overrides live in this account's own dir, so a DENY for one // account never leaks into another (the store used to be a single app-wide file). val relayAuthPermissionStore = DataStoreRelayAuthPermissionStore(accountDir) @@ -291,6 +319,8 @@ class AccountCacheState( mlsGroupStateStore = mlsStore, marmotMessageStore = marmotMessageStore, marmotKeyPackageStore = marmotKeyPackageStore, + marmotPublishObligationStore = marmotPublishObligationStore, + marmotIngestDedupStore = marmotIngestDedupStore, powQueue = powQueue, relayAuthPermissionStore = relayAuthPermissionStore, signerPermissionStore = signerPermissionStore, diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidIngestDedupStore.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidIngestDedupStore.kt new file mode 100644 index 0000000000..b414d09ac3 --- /dev/null +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidIngestDedupStore.kt @@ -0,0 +1,90 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.model.marmot + +import com.vitorpamplona.quartz.marmot.MarmotIngestDedupStore +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.utils.Log +import kotlinx.coroutines.Dispatchers +import kotlinx.coroutines.sync.Mutex +import kotlinx.coroutines.sync.withLock +import kotlinx.coroutines.withContext +import java.io.File + +/** + * Android implementation of [MarmotIngestDedupStore] — one hex event id per + * line under `/marmot_ingested.ids`. + * + * Deliberately NOT encrypted: the file holds public relay event ids and no key + * material, and a marker lost to a decryption failure would silently cost a + * re-decision rather than fail loudly. + * + * Capped and trimmed oldest-first. The worst case for a forgotten marker is + * one wasted NIP-59 unwrap on the next sync, so bounding growth is worth more + * than remembering every id forever. + */ +class AndroidIngestDedupStore( + private val rootDir: File, + private val maxEntries: Int = 20_000, +) : MarmotIngestDedupStore { + private val mutex = Mutex() + + private fun file(): File = File(rootDir, "marmot_ingested.ids") + + override suspend fun mark(eventId: HexKey) = + withContext(Dispatchers.IO) { + mutex.withLock { + val target = file() + try { + target.parentFile?.mkdirs() + target.appendText(eventId + "\n") + if (target.length() > maxEntries.toLong() * 65L) { + val kept = target.readLines().filter { it.isNotBlank() }.takeLast(maxEntries / 2) + target.writeText(kept.joinToString("\n") + "\n") + } + } catch (e: Exception) { + Log.w(TAG, "could not record ingest marker: ${e.message}", e) + } + Unit + } + } + + override suspend fun loadAll(): Set = + withContext(Dispatchers.IO) { + mutex.withLock { + try { + file() + .takeIf { it.exists() } + ?.readLines() + ?.filter { it.isNotBlank() } + ?.toSet() + .orEmpty() + } catch (e: Exception) { + Log.w(TAG, "could not read ingest markers: ${e.message}", e) + emptySet() + } + } + } + + companion object { + private const val TAG = "AndroidIngestDedupStore" + } +} diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidPublishObligationStore.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidPublishObligationStore.kt new file mode 100644 index 0000000000..02baa30a3d --- /dev/null +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidPublishObligationStore.kt @@ -0,0 +1,121 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.model.marmot + +import com.vitorpamplona.amethyst.model.preferences.KeyStoreEncryption +import com.vitorpamplona.quartz.marmot.protocolCore.MarmotPublishObligationStore +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.utils.Log +import kotlinx.coroutines.Dispatchers +import kotlinx.coroutines.sync.Mutex +import kotlinx.coroutines.sync.withLock +import kotlinx.coroutines.withContext +import java.io.File + +/** + * Android implementation of [MarmotPublishObligationStore], encrypted at rest + * with [KeyStoreEncryption] like the group-state and KeyPackage stores. + * + * ``` + * /marmot_obligations/.obligation + * ``` + * + * Publish-before-apply only means anything if the record outlives the process. + * A commit is recorded, published, and only then applied; a crash inside that + * window has to leave a trace, or the next launch mints a REPLACEMENT commit + * for the same epoch and forks this device against every peer that accepted + * the first one. Android kills apps mid-work routinely, so "in memory" here is + * not a simplification — it is the common case. + * + * One file per obligation rather than one appended log: two groups can publish + * concurrently and resolve out of order, so removing one record must not + * rewrite another's. + */ +class AndroidPublishObligationStore( + private val rootDir: File, + private val encryption: KeyStoreEncryption = KeyStoreEncryption(), +) : MarmotPublishObligationStore { + private val mutex = Mutex() + + private fun dir(): File = File(rootDir, "marmot_obligations") + + private fun file(obligationId: String) = File(dir(), "$obligationId.obligation") + + override suspend fun save( + obligationId: HexKey, + bytes: ByteArray, + ) = withContext(Dispatchers.IO) { + mutex.withLock { + val target = file(obligationId) + try { + target.parentFile?.mkdirs() + val encrypted = encryption.encrypt(bytes) + val tmp = File(target.parentFile, "${target.name}.tmp") + tmp.writeBytes(encrypted) + if (!tmp.renameTo(target)) { + tmp.copyTo(target, overwrite = true) + if (!tmp.delete()) Log.w(TAG) { "could not delete temp file ${tmp.absolutePath}" } + } + } catch (e: Exception) { + // Failing to record is worse than failing to publish: an + // unrecorded commit that peers accept is a fork we cannot + // detect. Surface it rather than continuing to the publish. + Log.e(TAG, "save($obligationId) FAILED", e) + throw e + } + } + } + + override suspend fun delete(obligationId: HexKey) = + withContext(Dispatchers.IO) { + mutex.withLock { + val target = file(obligationId) + if (target.exists() && !target.delete()) { + Log.w(TAG) { "could not delete resolved obligation ${target.absolutePath}" } + } + Unit + } + } + + override suspend fun loadAll(): List = + withContext(Dispatchers.IO) { + mutex.withLock { + dir() + .listFiles { f -> f.isFile && f.name.endsWith(".obligation") } + ?.sortedBy { it.name } + ?.mapNotNull { file -> + try { + encryption.decrypt(file.readBytes()) + } catch (e: Exception) { + // One unreadable record must not cost us the + // others; the gate treats a missing obligation as + // "never confirmed", which is the safe direction. + Log.w(TAG, "unreadable obligation ${file.name}: ${e.message}", e) + null + } + }.orEmpty() + } + } + + companion object { + private const val TAG = "AndroidPublishObligationStore" + } +} diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt index ea018b04d9..6414d19f79 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt @@ -776,6 +776,17 @@ class GroupEventHandler( } } + is GroupEventResult.RefusedByLifecycle -> { + // Disbanded is absorbing and Unrecoverable needs a repair + // before anything more may be applied, so this input was + // refused before decryption. Nothing to render, nothing to + // retain, and nothing the user can do about it here. + Log.d("MarmotDbg") { + "GroupEventHandler.add: refused for group=${result.groupId.take(8)}… " + + "lifecycle=${result.lifecycle}" + } + } + is GroupEventResult.Error -> { Log.w("MarmotDbg") { "GroupEventHandler.add: ERROR ${result.message}" } } diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Config.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Config.kt index ba408f8158..2cd961752f 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Config.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Config.kt @@ -228,6 +228,17 @@ class DataDir( val groupsDir = File(marmotDir, "groups") val keyPackageBundleFile = File(marmotDir, "keypackages.bundle") + /** + * Unresolved publish obligations. Durable because publish-before-apply is + * only meaningful across a crash: without this, a commit recorded and then + * lost to a restart is replaced by a fresh one for the same epoch, forking + * us against the peers that accepted the first. + */ + val publishObligationsDir = File(marmotDir, "obligations") + + /** Inbound events this account has terminally decided about. */ + val ingestDedupFile = File(marmotDir, "ingested.ids") + /** * SQLite event-store DB file, a sibling of [eventsDir] under * `/shared/`. Used when the store backend is SQLite (the diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt index e8c3c44946..be88e3861b 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Context.kt @@ -21,9 +21,11 @@ package com.vitorpamplona.amethyst.cli import com.sun.management.UnixOperatingSystemMXBean +import com.vitorpamplona.amethyst.cli.stores.FileIngestDedupStore import com.vitorpamplona.amethyst.cli.stores.FileKeyPackageBundleStore import com.vitorpamplona.amethyst.cli.stores.FileMarmotMessageStore import com.vitorpamplona.amethyst.cli.stores.FileMlsGroupStateStore +import com.vitorpamplona.amethyst.cli.stores.FilePublishObligationStore import com.vitorpamplona.amethyst.commons.cashu.CashuWalletReader import com.vitorpamplona.amethyst.commons.cashu.ops.CashuWalletOps import com.vitorpamplona.amethyst.commons.cashu.ops.RestoreOutcome @@ -319,6 +321,8 @@ class Context( private val mlsStore by lazy { FileMlsGroupStateStore(dataDir.groupsDir) } private val keyPackageStore by lazy { FileKeyPackageBundleStore(dataDir.keyPackageBundleFile) } private val messageStore by lazy { FileMarmotMessageStore(dataDir.groupsDir) } + private val publishObligationStore by lazy { FilePublishObligationStore(dataDir.publishObligationsDir) } + private val ingestDedupStore by lazy { FileIngestDedupStore(dataDir.ingestDedupFile) } /** * Shared Nostr event store for this run, opened via [StoreFactory] @@ -356,6 +360,8 @@ class Context( // once a relay in the group's own scope returns OK true. Anything // weaker (queued, sent, no error yet) is explicitly not success. MarmotPublisher { event, relays -> client.publishAndConfirm(event, relays) }, + publishObligationStore, + ingestDedupStore, ) } diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt index 53dfa0ae18..2fe55c7dd4 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt @@ -22,9 +22,14 @@ package com.vitorpamplona.amethyst.cli.stores import com.vitorpamplona.amethyst.cli.SecureFileIO import com.vitorpamplona.amethyst.commons.util.deleteOrWarn +import com.vitorpamplona.quartz.marmot.MarmotIngestDedupStore import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore +import com.vitorpamplona.quartz.marmot.protocolCore.MarmotPublishObligationStore +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import kotlinx.coroutines.sync.Mutex +import kotlinx.coroutines.sync.withLock import java.io.File /** @@ -148,3 +153,81 @@ class FileMarmotMessageStore( file(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group messages") } } + +/** + * Durable publish obligations, one file per obligation under [dir]. + * + * Publish-before-apply only means anything if the obligation outlives the + * process: the whole point is that a commit is prepared, recorded, published, + * and only then applied, so a crash between record and publish must leave a + * trace. With a non-durable store that window silently becomes "the commit + * never happened", and on relaunch the client mints a REPLACEMENT commit for + * the same epoch — forking itself against the peers that accepted the first + * one. + * + * A file per obligation rather than one appended log: obligations resolve out + * of order (two groups publish concurrently), and deleting one must not + * rewrite the others. + */ +class FilePublishObligationStore( + private val dir: File, +) : MarmotPublishObligationStore { + init { + SecureFileIO.secureMkdirs(dir) + } + + private fun file(obligationId: String) = File(dir, "$obligationId.obligation") + + override suspend fun save( + obligationId: HexKey, + bytes: ByteArray, + ) { + SecureFileIO.writeBytesAtomic(file(obligationId), bytes) + } + + override suspend fun delete(obligationId: HexKey) { + file(obligationId).deleteOrWarn("FilePublishObligationStore", "publish obligation") + } + + override suspend fun loadAll(): List = + dir + .listFiles { f -> f.isFile && f.name.endsWith(".obligation") } + ?.sortedBy { it.name } + ?.mapNotNull { runCatching { it.readBytes() }.getOrNull() } + .orEmpty() +} + +/** + * Durable "already decided" markers, one hex id per line. + * + * Append-only and capped: the point is to stop re-deciding backdated gift + * wraps forever, not to remember every event this account has ever seen. When + * the cap is hit the oldest half is dropped — the worst case for a forgotten + * marker is one wasted re-decision, so trading memory for exactness is the + * right way round. + */ +class FileIngestDedupStore( + private val file: File, + private val maxEntries: Int = 20_000, +) : MarmotIngestDedupStore { + private val mutex = Mutex() + + override suspend fun mark(eventId: HexKey) = + mutex.withLock { + SecureFileIO.appendText(file, eventId + "\n") + if (file.length() > maxEntries.toLong() * 65L) { + val kept = file.readLines().filter { it.isNotBlank() }.takeLast(maxEntries / 2) + SecureFileIO.writeBytesAtomic(file, (kept.joinToString("\n") + "\n").encodeToByteArray()) + } + } + + override suspend fun loadAll(): Set = + mutex.withLock { + file + .takeIf { it.exists() } + ?.readLines() + ?.filter { it.isNotBlank() } + ?.toSet() + .orEmpty() + } +} diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt index ac51cca3a3..54f51999d4 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt @@ -105,7 +105,28 @@ suspend fun MarmotManager.ingest(event: Event): MarmotIngestResult = else -> MarmotIngestResult.Ignored } -private suspend fun MarmotManager.ingestGiftWrap(wrap: GiftWrapEvent): MarmotIngestResult = +private suspend fun MarmotManager.ingestGiftWrap(wrap: GiftWrapEvent): MarmotIngestResult { + // A relay `since` cursor cannot skip a backdated event, and NIP-59 wraps + // are backdated by up to two days on purpose — so without a durable marker + // every wrap in that band is unwrapped and re-decided on every single sync. + if (isTerminallyIngested(wrap.id)) return MarmotIngestResult.Ignored + val result = ingestGiftWrapUncached(wrap) + when (result) { + // Joined, or already in the group: nothing more can come of this wrap. + is MarmotIngestResult.JoinedGroup, is MarmotIngestResult.AlreadyInGroup -> markTerminallyIngested(wrap.id) + + // A Welcome naming a KeyPackage whose private half we never held can + // never become processable: bundles are generated locally BEFORE the + // KeyPackage is published, so one we do not have is one we never will. + is MarmotIngestResult.Failure -> + if (result.message.contains("No matching KeyPackageBundle")) markTerminallyIngested(wrap.id) + + else -> Unit + } + return result +} + +private suspend fun MarmotManager.ingestGiftWrapUncached(wrap: GiftWrapEvent): MarmotIngestResult = try { // NIP-59 wraps carry two encryption layers (kind:1059 → kind:13 → rumor). // [unwrapAndUnsealOrNull] peels both so we land directly on the inner @@ -158,6 +179,9 @@ private suspend fun MarmotManager.ingestGroupEvent(ge: GroupEvent): MarmotIngest // Decrypted only on a losing branch: real protocol input (it may have // witnessed for that branch), but never application output. is GroupEventResult.AppMessageOnCandidateBranch, + // Disbanded or locally unrecoverable — refused before decryption, so + // there is nothing to deliver and nothing to retain. + is GroupEventResult.RefusedByLifecycle, -> { MarmotIngestResult.Ignored } diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 08b968cf48..94aab47d43 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -24,6 +24,7 @@ import com.vitorpamplona.amethyst.commons.model.marmotGroups.MarmotGroupChatroom import com.vitorpamplona.amethyst.commons.model.marmotGroups.MarmotGroupImage import com.vitorpamplona.quartz.marmot.GroupEventResult import com.vitorpamplona.quartz.marmot.MarmotInboundProcessor +import com.vitorpamplona.quartz.marmot.MarmotIngestDedupStore import com.vitorpamplona.quartz.marmot.MarmotOutboundProcessor import com.vitorpamplona.quartz.marmot.MarmotSubscriptionManager import com.vitorpamplona.quartz.marmot.MarmotWelcomeSender @@ -70,6 +71,8 @@ import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.delay import kotlinx.coroutines.flow.MutableStateFlow import kotlinx.coroutines.launch +import kotlinx.coroutines.sync.Mutex +import kotlinx.coroutines.sync.withLock import kotlin.io.encoding.Base64 import kotlin.io.encoding.ExperimentalEncodingApi @@ -102,6 +105,14 @@ class MarmotManager( */ val publisher: MarmotPublisher = MarmotPublisher { _, _ -> false }, publishObligationStore: MarmotPublishObligationStore? = null, + /** + * Durable "already decided" markers for inbound events. + * + * Null means every backdated gift wrap is re-unwrapped and re-decided on + * every sync, forever — correct, but it costs a full NIP-59 double + * decryption per wrap per sync and keeps the relay busy re-serving them. + */ + private val ingestDedupStore: MarmotIngestDedupStore? = null, /** * Scope used to carry an open convergence pass to its cutoff. * @@ -151,12 +162,93 @@ class MarmotManager( // Also restore previously-published KeyPackage bundles so that // Welcomes referencing them remain processable across restarts. keyPackageRotationManager.restoreFromStore() + ingestDedupStore?.loadAll()?.let { marks -> + terminallyIngestedMutex.withLock { terminallyIngested.addAll(marks) } + Unit + } + retryPendingPublishObligations() Log.d("MarmotManager") { "restoreAll(): done, ${activeIds.size} groups: $activeIds" } } catch (e: Exception) { Log.e("MarmotManager", "Failed to restore Marmot state", e) } } + /** + * Event ids this client has terminally decided about — see + * [MarmotIngestDedupStore]. Loaded once in [restoreAll]; the in-memory set + * is the hot path, the store only makes it survive a restart. + */ + private val terminallyIngested = mutableSetOf() + private val terminallyIngestedMutex = Mutex() + + suspend fun isTerminallyIngested(eventId: HexKey): Boolean = terminallyIngestedMutex.withLock { eventId in terminallyIngested } + + suspend fun markTerminallyIngested(eventId: HexKey) { + val added = terminallyIngestedMutex.withLock { terminallyIngested.add(eventId) } + if (added) { + try { + ingestDedupStore?.mark(eventId) + } catch (e: Exception) { + // A marker we failed to persist costs a re-decision next + // launch; it never costs correctness, so it is not worth + // failing the ingest over. + Log.w("MarmotManager", "could not persist ingest marker for ${eventId.take(8)}: ${e.message}", e) + } + } + } + + /** + * Re-emit every publish obligation a previous run left unresolved. + * + * The bytes are republished VERBATIM — the same signed kind-445, to the + * same recipient scope. That is the whole reason the obligation stores + * them rather than storing "there was a commit": a replacement commit for + * the same epoch is a fork against every peer that accepted the first one, + * and a peer that already has this event simply deduplicates it. + * + * A retry that still fails leaves the group in `PendingPublish`, which is + * the safe direction: it blocks new local commits until the group actually + * knows what happened to this one. + */ + suspend fun retryPendingPublishObligations() { + val pending = publishGate.allPending() + if (pending.isEmpty()) return + Log.d("MarmotManager") { "retryPendingPublishObligations(): ${pending.size} unresolved" } + for (obligation in pending) { + val event = + try { + Event.fromJson(obligation.outboundBytes.decodeToString()) + } catch (e: Exception) { + // A record we cannot decode can never be republished, and + // holding the group in PendingPublish forever helps nobody. + Log.w("MarmotManager", "unreadable publish obligation ${obligation.obligationId}: ${e.message}", e) + publishGate.resolve(obligation.obligationId, PublishOutcome.FAILED) + continue + } + val relays = obligation.recipientScope.mapNotNull { RelayUrlNormalizer.normalizeOrNull(it) }.toSet() + val confirmed = + if (relays.isEmpty()) { + false + } else { + try { + publisher.publish(event, relays) + } catch (e: Exception) { + Log.w("MarmotManager", "publish retry failed for ${obligation.groupId}: ${e.message}", e) + false + } + } + val state = + publishGate.resolve( + obligation.obligationId, + if (confirmed) PublishOutcome.CONFIRMED else PublishOutcome.UNKNOWN, + ) + Log.d("MarmotManager") { + "retryPendingPublishObligations(): ${obligation.groupId.take(8)}… " + + "confirmed=$confirmed lifecycle=$state" + } + } + } + /** * Computes a per-group kind:445 subscription `since` from the newest * persisted decrypted message of each group. @@ -231,6 +323,7 @@ class MarmotManager( is GroupEventResult.Duplicate, is GroupEventResult.UndecryptableOuterLayer, is GroupEventResult.AppMessageOnCandidateBranch, + is GroupEventResult.RefusedByLifecycle, is GroupEventResult.Error, -> {} } @@ -267,7 +360,10 @@ class MarmotManager( suspend fun buildGroupMessage( nostrGroupId: HexKey, innerEvent: Event, - ): OutboundGroupEvent = outboundProcessor.buildGroupEvent(nostrGroupId, innerEvent) + ): OutboundGroupEvent { + requireOutboundAllowed(nostrGroupId, "send a message") + return outboundProcessor.buildGroupEvent(nostrGroupId, innerEvent) + } /** * Build a kind:9 chat-message GroupEvent from plain text. The inner @@ -562,6 +658,7 @@ class MarmotManager( relays: List, stage: suspend () -> MlsGroupManager.StagedCommit, ): CommitPublication { + requireOutboundAllowed(nostrGroupId, "commit a group-state change") check(publishGate.canPrepareLocalCommit(nostrGroupId)) { "Group $nostrGroupId cannot prepare a local commit " + "(lifecycle=${publishGate.lifecycle(nostrGroupId)}, gate=${publishGate.outboundGate(nostrGroupId)})" @@ -597,7 +694,10 @@ class MarmotManager( publishGate.resolve( obligation.obligationId, - if (confirmed) PublishOutcome.CONFIRMED else PublishOutcome.FAILED, + // Not confirmed is NOT the same as rejected: a timeout or a + // dropped connection leaves us unable to say whether a peer took + // the commit, so the obligation stays retryable. + if (confirmed) PublishOutcome.CONFIRMED else PublishOutcome.UNKNOWN, ) if (confirmed) { @@ -660,8 +760,55 @@ class MarmotManager( private val settlerRunning = MutableStateFlow(false) - /** Lifecycle state for a group, including any unresolved publish obligation. */ - suspend fun lifecycle(nostrGroupId: HexKey): GroupLifecycleState = publishGate.lifecycle(nostrGroupId) + /** + * The group's effective lifecycle state. + * + * Two components track lifecycle for different reasons and neither is the + * whole answer on its own: the publish gate owns the local-publish states + * (`PendingPublish`, `Merging`), convergence owns `Recovering` and the two + * terminal-ish states (`Disbanded`, `Unrecoverable`). Reading only the + * publish gate — as this used to — meant a disbanded or unrecoverable + * group still reported `Stable` and every outbound gate keyed on it + * happily let work through. + * + * Terminal wins: a group that convergence has terminalized is terminal + * regardless of what the publish gate is doing, because the publish that + * gate is tracking can no longer be applied to anything. + */ + suspend fun lifecycle(nostrGroupId: HexKey): GroupLifecycleState { + val converged = inboundProcessor.groupLifecycle(nostrGroupId) + if (converged == GroupLifecycleState.DISBANDED || converged == GroupLifecycleState.UNRECOVERABLE) { + return converged + } + val publish = publishGate.lifecycle(nostrGroupId) + return if (publish == GroupLifecycleState.STABLE) converged else publish + } + + /** + * Refuse outbound work a group's lifecycle does not permit. + * + * The check is here rather than at each call site because every outbound + * path has the same answer: a `Disbanded` group takes no further work of + * any kind, and an `Unrecoverable` one takes none until it is repaired — + * encrypting against state we do not trust produces a message the group + * will invalidate, which is worse than refusing. + */ + private suspend fun requireOutboundAllowed( + nostrGroupId: HexKey, + what: String, + ) { + when (val state = lifecycle(nostrGroupId)) { + GroupLifecycleState.DISBANDED -> + throw IllegalStateException("Group $nostrGroupId is disbanded; cannot $what") + + GroupLifecycleState.UNRECOVERABLE -> + throw IllegalStateException( + "Group $nostrGroupId is unrecoverable locally; repair, restore or rejoin before you $what", + ) + + else -> Log.d("MarmotManager") { "$what allowed for ${nostrGroupId.take(8)}… in $state" } + } + } /** * The group's own relay list, as the recipient scope for a publish diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt index 9100f51ea3..bc15a68cb5 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt @@ -237,9 +237,17 @@ class MarmotPublishBeforeApplyTest { /** * A group whose publisher never acknowledges anything can still be read. * It simply cannot advance — which is the safe direction to fail. + * + * It also cannot start over. "No OK arrived" is not "no peer took it": a + * timeout or a dropped connection leaves us unable to say. Discarding the + * obligation and letting a SECOND commit be prepared for the same epoch is + * how that uncertainty becomes a permanent fork — the peer that did + * receive the first commit is at epoch 1, rejects our second, and the two + * copies never reconcile. So the obligation stays, the group stays held, + * and the retry republishes the SAME bytes. */ @Test - fun aFailedPublishLeavesTheGroupUsable() = + fun anUnconfirmedPublishHoldsTheGroupInsteadOfStartingOver() = runBlocking { val fx = fixture(accepts = false) fx.manager.addMember( @@ -250,15 +258,24 @@ class MarmotPublishBeforeApplyTest { relays = listOf(relay), ) - assertEquals(GroupLifecycleState.STABLE, fx.manager.lifecycle(fx.groupId)) - assertTrue( + assertEquals(GroupLifecycleState.PENDING_PUBLISH, fx.manager.lifecycle(fx.groupId)) + assertEquals( + 1, fx.manager.publishGate .pendingFor(fx.groupId) - .isEmpty(), - "a failed obligation is discarded, not left pending forever", + .size, + "an unconfirmed obligation stays retryable", ) - // A second attempt is allowed: nothing was consumed by the failure. - val retry = + // Reading is unaffected; only advancing the group is blocked. + assertEquals( + 0L, + fx.manager.groupManager + .getGroup(fx.groupId)!! + .epoch, + ) + + // A second, different commit for the same epoch is refused. + assertFailsWith { fx.manager.addMember( nostrGroupId = fx.groupId, memberPubKey = fx.bobPubKey, @@ -266,11 +283,8 @@ class MarmotPublishBeforeApplyTest { keyPackageEventId = "c".repeat(64), relays = listOf(relay), ) - assertEquals(2, fx.publisher.published.size) - assertTrue( - retry.first.signedEvent.id - .isNotEmpty(), - ) + } + assertEquals(1, fx.publisher.published.size, "no replacement commit was offered") } /** The group's own relay list is the default recipient scope. */ diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishDurabilityTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishDurabilityTest.kt new file mode 100644 index 0000000000..7f3e6998c3 --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishDurabilityTest.kt @@ -0,0 +1,233 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore +import com.vitorpamplona.quartz.marmot.protocolCore.GroupLifecycleState +import com.vitorpamplona.quartz.marmot.protocolCore.MarmotPublishObligationStore +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl +import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertTrue + +/** + * Publish-before-apply is only a real rule if it survives the process. + * + * A commit is recorded, published, and only then applied. A crash inside that + * window has to leave a durable trace, because the alternative is that the next + * launch has no memory of the commit, mints a REPLACEMENT for the same epoch, + * and forks this client against every peer that accepted the first one. So + * these tests restart the manager against the same stores and assert the + * obligation is still there, is retried with the SAME bytes, and only then + * lets the group move. + */ +class MarmotPublishDurabilityTest { + private val relay: NormalizedRelayUrl = RelayUrlNormalizer.normalizeOrNull("wss://relay.example.com")!! + + /** Answers with a verdict that can be flipped between "runs". */ + private class SwitchablePublisher( + var accepts: Boolean, + ) : MarmotPublisher { + val published = mutableListOf() + + override suspend fun publish( + event: Event, + relays: Set, + ): Boolean { + published.add(event) + return accepts + } + } + + private class MemoryObligationStore : MarmotPublishObligationStore { + val entries = LinkedHashMap() + + override suspend fun save( + obligationId: HexKey, + bytes: ByteArray, + ) { + entries[obligationId] = bytes + } + + override suspend fun delete(obligationId: HexKey) { + entries.remove(obligationId) + } + + override suspend fun loadAll(): List = entries.values.toList() + } + + /** Same MLS state across "restarts", like a real store on disk. */ + private class MemoryStateStore : MlsGroupStateStore { + private val states = mutableMapOf() + private val retained = mutableMapOf>() + + override suspend fun save( + nostrGroupId: String, + state: ByteArray, + ) { + states[nostrGroupId] = state + } + + override suspend fun load(nostrGroupId: String): ByteArray? = states[nostrGroupId] + + override suspend fun delete(nostrGroupId: String) { + states.remove(nostrGroupId) + retained.remove(nostrGroupId) + } + + override suspend fun listGroups(): List = states.keys.toList() + + override suspend fun saveRetainedEpochs( + nostrGroupId: String, + epochs: List, + ) { + retained[nostrGroupId] = epochs + } + + override suspend fun loadRetainedEpochs(nostrGroupId: String): List = retained[nostrGroupId].orEmpty() + } + + private fun manager( + signer: NostrSignerInternal, + store: MlsGroupStateStore, + obligations: MarmotPublishObligationStore, + publisher: MarmotPublisher, + ) = MarmotManager( + signer, + store, + publisher = publisher, + publishObligationStore = obligations, + ) + + @Test + fun anUnresolvedObligationOutlivesTheProcessAndIsRetriedVerbatim() = + runBlocking { + val signer = NostrSignerInternal(KeyPair()) + val store = MemoryStateStore() + val obligations = MemoryObligationStore() + val publisher = SwitchablePublisher(accepts = false) + val groupId = "b".repeat(64) + + val first = manager(signer, store, obligations, publisher) + first.createGroup( + groupId, + MarmotGroupData( + nostrGroupId = groupId, + adminPubkeys = listOf(signer.pubKey), + relays = listOf(relay.url), + ), + ) + val bob = KeyPair() + val bundle = + first.groupManager + .getGroup(groupId)!! + .createKeyPackage(bob.pubKey, ByteArray(0)) + + // The publish is refused, so the group must NOT move and the + // obligation must remain on disk. + runCatching { + first.addMember( + nostrGroupId = groupId, + memberPubKey = bob.pubKey.toHexKey(), + keyPackageBytes = bundle.keyPackage.toTlsBytes(), + keyPackageEventId = "d".repeat(64), + relays = listOf(relay), + ) + } + assertEquals(GroupLifecycleState.PENDING_PUBLISH, first.lifecycle(groupId)) + assertEquals(0L, first.groupManager.getGroup(groupId)!!.epoch) + assertEquals(1, obligations.entries.size, "an unacknowledged commit leaves its obligation durable") + val recordedBytes = + obligations.entries.values + .first() + .copyOf() + val firstAttempt = publisher.published.single() + + // Restart against the same stores. The relay accepts this time. + publisher.accepts = true + val second = manager(signer, store, obligations, publisher) + second.restoreAll() + + val retry = publisher.published.last() + assertEquals( + firstAttempt.toJson(), + retry.toJson(), + "the retry republishes the same event, not a replacement commit for the same epoch", + ) + assertEquals(GroupLifecycleState.STABLE, second.lifecycle(groupId)) + assertEquals(1L, second.groupManager.getGroup(groupId)!!.epoch, "the acknowledged commit applies") + assertTrue(obligations.entries.isEmpty(), "a resolved obligation is deleted") + assertTrue(recordedBytes.isNotEmpty()) + } + + @Test + fun aRetryThatFailsAgainKeepsTheGroupHeld() = + runBlocking { + val signer = NostrSignerInternal(KeyPair()) + val store = MemoryStateStore() + val obligations = MemoryObligationStore() + val publisher = SwitchablePublisher(accepts = false) + val groupId = "c".repeat(64) + + val first = manager(signer, store, obligations, publisher) + first.createGroup( + groupId, + MarmotGroupData( + nostrGroupId = groupId, + adminPubkeys = listOf(signer.pubKey), + relays = listOf(relay.url), + ), + ) + val carol = KeyPair() + val bundle = + first.groupManager + .getGroup(groupId)!! + .createKeyPackage(carol.pubKey, ByteArray(0)) + runCatching { + first.addMember( + nostrGroupId = groupId, + memberPubKey = carol.pubKey.toHexKey(), + keyPackageBytes = bundle.keyPackage.toTlsBytes(), + keyPackageEventId = "e".repeat(64), + relays = listOf(relay), + ) + } + + val second = manager(signer, store, obligations, publisher) + second.restoreAll() + + // Still refused: the group stays held rather than quietly moving + // on, which is what stops a new commit stacking on an epoch peers + // never accepted. + assertEquals(GroupLifecycleState.PENDING_PUBLISH, second.lifecycle(groupId)) + assertEquals(0L, second.groupManager.getGroup(groupId)!!.epoch) + assertEquals(1, obligations.entries.size) + assertTrue(bundle.keyPackage.toTlsBytes().isNotEmpty()) + } +} diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index 183c22ae0e..945b79efd7 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -584,46 +584,75 @@ Writing the producer side immediately found two bugs the reader-side tests could just started enforcing, so every KeyPackage we published would have been rejected by any conformant peer — including, once Stage 4 landed, by us. Now `now - 1h` to `+84 days`. -## What is NOT done +## Interop status (2026-09-09) -- **The interop harness now RUNS but does not pass.** It used to die in preflight; it now - builds MDK 0.9.20 (against the same OpenMLS fork rev `mdk-vector-gen` pins), boots - nostr-rs-relay, brings up both `wnd` daemons and `amy`, and executes all 17 scenarios. Every - one fails, all downstream of Test 01 (MDK cannot find A's KeyPackage). Four environment - blockers were fixed to get that far, all recorded in the harness: - - `protoc` is a build prerequisite MDK now needs. - - MDK 0.9.x requires `WN_ALLOW_LOOPBACK_RELAYS=1` before it will accept a `ws://` loopback - relay at all; without it `wnd` exits before creating its socket. - - MDK refuses to create its socket unless the socket's parent directory is `0700`. - - `wn --json whoami` moved to `{"ok":true,"result":{"accounts":[…]}}`; the harness's - `extract_pubkey` probed only the older array shapes and silently returned nothing. +The MDK 0.9.20 harness runs end to end. It went **1 passed / 12 failed** to +**9 passed** over this pass, and the failures that remain are named below rather +than lumped together. - Two real defects in our own code came out of the run, both fixed: - - `amy relay add` reported success from the DECISION to write, not the store's answer, so a - rejected or no-op write printed `added: yes`. - - Our own KeyPackage/DM relay lists were read back through the local-network filter. That - filter is right for someone else's list — it is attacker-supplied input, and it is also what - exempts a relay from Tor — but applying it to a list we published ourselves made a - deliberately configured local relay look like no configuration at all. The publisher then - fell back to a default set, and A's KeyPackage went to five PUBLIC relays instead of the - harness's loopback. `allRelays()` now exists for reading back our own lists, and the - KeyPackage publish goes only to the configured relay. +### Defects the harness found in our own code - **Still blocking Test 01:** the kind-10051 list persists under `relay key-package set` but not - under `relay add`/`relay key-package add`, so MDK finds no relay list to fetch A's KeyPackage - from. `verifyAndStore` returns true and kind 10050 works through the identical code path, so - this is a storage/CLI issue rather than a protocol one, and it needs its own focused pass. +Each of these was invisible to every same-implementation test we have, because +each is a place where two implementations have to agree on something one +implementation alone never disagrees with. - **Also unresolved, and it is a design conflict rather than a bug:** MDK accepts `ws://` ONLY - for a loopback host, while quartz strips exactly those hosts out of relay lists. No address - satisfies both, so a loopback-relay harness cannot work until one side moves. Changing a - Tor-adjacent privacy guard is a maintainer decision, not one to make in passing. -- **`MarmotManager.createGroup` (the MIP-era path) is still the one the UI calls.** - `createCurrentProfileGroup` exists, is wired, and is tested, but the Android and desktop - "new group" flows still call the legacy one. KeyPackage publishing HAS switched: it now - defaults to the current profile, which is the half that decides whether anyone can invite us. -- **Lifecycle enforcement covers the publish path, not everything.** `PendingPublish`, - `Merging` and the outbound gates are enforced; `Unrecoverable` and `Disbanded` are still a - correct model with nothing driving them. -- Stage 7: durability/restart conformance, app payload kinds `1009`/`1210`, encrypted-media v2, - the push owner proof (kind `451`). +1. **A Commit rebuilt our own leaf from defaults.** The UpdatePath leaf replaces + OUR leaf — same member, new key material — so its capabilities and extensions + must carry over. `buildLeafNode` was called with neither, so the very first + invite we ever sent dropped the `account-identity-proof` (a LEAF extension no + proposal can restore) and stopped advertising the extension and proposal the + group's own `required_capabilities` demanded. MDK reported + `PublicGroupError(LeafNodeValidation(UnsupportedExtensions))` and dropped the + Welcome minted by that same commit; the invitee simply never saw an invite, + with nothing logged on either side. + +2. **We held private keys for our leaf only, not our direct path.** RFC 9420 + §7.6 lets a committer address us at any node in the copath resolution whose + key we hold, and a merged subtree resolves to its PARENT — so from three + members on, the ciphertext meant for us stops naming our leaf. Worked for + two members, failed for three, which is exactly why it survived every + two-party test. `MlsGroupState` v3 persists them. + +3. **Three readers only understood the legacy `0xF2EE` extension**, so they did + nothing at all on a current-profile group: the Welcome's `nostr_group_id` + (without which a joiner cannot even subscribe), the admin gate on + GroupContextExtensions changes (which skipped rather than failed closed), and + disappearing-message expiration. Group metadata reads and writes now go + through `MarmotManager.groupView` / `setGroupProfile` / `setGroupAdmins` / + `setGroupImage`, which dispatch on the profile the group actually uses. + +4. **A non-confirmed publish discarded its obligation**, letting a REPLACEMENT + commit be prepared for the same epoch. "No OK arrived" is not "no peer took + it": a timeout or a dropped connection leaves it unknown, and minting a + second commit for an epoch a peer may already hold is the fork the gate + exists to prevent. `PublishOutcome.UNKNOWN` keeps the record and holds the + group. + +5. **The harness was parsing a wire format `wn` no longer speaks.** MDK 0.9.x + returns `{"ok":true,"result":{"invites":[…]}}`; iterating `.result` walked + that object's three VALUES, so every poll matched nothing and reported "never + received invite" for welcomes that had arrived and been accepted. + +### What is NOT done + +- **Test 03 gets further but does not pass.** We join MDK's group and see its + name; the first kind-445 after the join is not delivered. Tests 05/12/14/15 + fail behind it with "A never received invite". +- **Tests 13 and 16 (KeyPackage rotation) fail.** `wn keys check` finds no prior + KeyPackage for A at that point in the run, and amy keeps seeing B's + pre-rotation KeyPackage. +- **Test 09 fails on the relay, not on us**: `disconnected before OK` from the + local nostr-rs-relay under the load of a full run. The durable ingest markers + added in this pass cut a large part of that load (a backdated gift wrap used + to be re-unwrapped on every sync, forever) but the test has not been re-run + since. +- **Agent-text-stream is receive-only.** We decode the `0x8006` policy, derive + per-stream record keys, open records and fold the transcript, and we advertise + the `0xF2D1` receive capability. We do NOT advertise `send` (`0xF2D2`) or + `fanout` (`0xF2D4`): publishing needs durable per-stream sequence state to + avoid reusing an AEAD nonce across a restart, and there is none. A group whose + policy requires `send` is refused at join rather than joined into a state + every peer would reject us from. +- **The QUIC transport for agent text streams is not wired.** The record layer + and the kind-1200 anchor are implemented; nothing yet opens a WebTransport + session to a broker and feeds it records. diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt index 9a876ca8f2..0ec8f0f677 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt @@ -133,6 +133,21 @@ sealed class GroupEventResult { val countedAsWitness: Boolean, ) : GroupEventResult() + /** + * The group's lifecycle state refuses this input outright. + * + * `Disbanded` is absorbing — no later branch supersedes a terminalized + * disband, so there is nothing a subsequent kind-445 could do but be + * retained forever. `Unrecoverable` means this client cannot safely apply + * more traffic until it repairs, restores or rejoins; retaining input + * against material we no longer trust is how a client talks itself into + * settling for a state it should have refused. + */ + data class RefusedByLifecycle( + val groupId: HexKey, + val lifecycle: GroupLifecycleState, + ) : GroupEventResult() + /** * The event could not be processed. */ @@ -264,6 +279,15 @@ class MarmotInboundProcessor( return GroupEventResult.Error(groupId, "Not a member of group $groupId") } + // Lifecycle BEFORE anything is retained. A disbanded group is + // terminal and an unrecoverable one cannot safely apply traffic, so + // input for either is refused here rather than decrypted, retained, + // and then quietly never acted on. + val lifecycle = convergence.lifecycle(groupId) + if (lifecycle == GroupLifecycleState.DISBANDED || lifecycle == GroupLifecycleState.UNRECOVERABLE) { + return GroupEventResult.RefusedByLifecycle(groupId, lifecycle) + } + // Settle FIRST, so this event is processed against resolved state // rather than against a branch a pass is about to abandon. Inbound // traffic is only an opportunistic tick, though: a group that goes diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotIngestDedupStore.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotIngestDedupStore.kt new file mode 100644 index 0000000000..15b970c9bd --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotIngestDedupStore.kt @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot + +import com.vitorpamplona.quartz.nip01Core.core.HexKey + +/** + * Durable record of inbound events this client has TERMINALLY decided about. + * + * A relay subscription cannot express "everything after event X" — only + * `since`, a timestamp — and NIP-59 gift wraps are deliberately backdated by up + * to two days, so a `since` cursor that has caught up still re-delivers every + * wrap in that band on every sync. Without a durable marker each of those is + * unwrapped, decrypted and re-decided from scratch, forever: a client that has + * been in a few groups spends most of its sync budget re-deciding events it + * already resolved, and hammers the relay doing it. + * + * "Terminally decided" is a narrow claim. It covers outcomes that cannot change + * with more information — a Welcome we joined from, and one naming a + * KeyPackage whose private half we never held (bundles are generated locally + * before the KeyPackage is published, so a bundle we do not have is one we + * never will). It does NOT cover an event that is merely undecryptable right + * now: a kind-445 encrypted under an epoch we have not reached yet becomes + * readable the moment the commit arrives, and marking it would lose the + * message permanently. + */ +interface MarmotIngestDedupStore { + suspend fun mark(eventId: HexKey) + + suspend fun loadAll(): Set +} + +/** Non-durable default. Re-decides everything after a restart. */ +class InMemoryIngestDedupStore : MarmotIngestDedupStore { + private val ids = LinkedHashSet() + + override suspend fun mark(eventId: HexKey) { + ids.add(eventId) + } + + override suspend fun loadAll(): Set = ids.toSet() +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index 950e542230..b44a71cbe1 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -135,6 +135,20 @@ class MlsGroup private constructor( /** Staged keys from proposeSigningKeyRotation — only promoted on successful commit */ private var pendingSigningKey: ByteArray? = null, private var pendingEncryptionKey: ByteArray? = null, + /** + * HPKE private keys for the PARENT nodes on our own direct path, keyed by + * node index. + * + * RFC 9420 §7.6 does not say "the committer encrypts to your leaf" — it + * says the committer encrypts one path secret per node in the copath + * resolution, and you decrypt at whichever of those nodes you hold a key + * for. A merged subtree resolves to its PARENT, so as soon as a group has + * three members the commits addressed to us stop naming our leaf at all. + * Keeping only the leaf key is why every MDK commit after a three-member + * Add failed with "UpdatePath at common ancestor carries no ciphertext + * for us". + */ + private val pathPrivateKeys: MutableMap = mutableMapOf(), ) { val groupId: ByteArray get() = groupContext.groupId val epoch: Long get() = groupContext.epoch @@ -295,9 +309,38 @@ class MlsGroup private constructor( // rewind our own generation counter to 0 and reuse an AEAD // key+nonce within this epoch (RFC 9420 §9). senderRatchetStates = secretTree.exportSenderStates(), + pathPrivateKeys = pathPrivateKeys.toMap(), ) } + /** + * Record the HPKE private keys our direct path gained from [pathSecret] at + * [fromNodeIndex] and every node above it, up to the root. + * + * A path secret ratchets one KDF step per level regardless of filtering, + * and each level's node keypair is `DeriveKeyPair(DeriveSecret(secret, + * "node"))` — the same derivation the committer used, which is what makes + * the keys we store here the ones a later committer will encrypt to. + */ + private fun rememberPathKeys( + fromNodeIndex: Int, + pathSecret: ByteArray, + ) { + val fullPath = BinaryTree.directPath(myLeafIndex, tree.leafCount) + val start = fullPath.indexOf(fromNodeIndex) + if (start < 0) return + var secret = pathSecret + for (i in start until fullPath.size) { + val nodeSecret = MlsCryptoProvider.deriveSecret(secret, "node") + pathPrivateKeys[fullPath[i]] = Hpke.deriveKeyPair(nodeSecret).privateKey + secret = MlsCryptoProvider.deriveSecret(secret, "path") + } + // Anything no longer on our direct path (the tree reshaped under us) + // can never be addressed to us again; holding it would only make a + // stale key look usable at the next resolution scan. + pathPrivateKeys.keys.retainAll(fullPath.toSet()) + } + /** * Extract retained epoch secrets for late-message decryption. * @@ -634,6 +677,17 @@ class MlsGroup private constructor( val leafSecret = MlsCryptoProvider.randomBytes(MlsCryptoProvider.HASH_OUTPUT_LENGTH) val pathSecrets = tree.derivePathSecrets(myLeafIndex, leafSecret) + // We just minted the keys for our whole direct path. Keep the private + // halves: the next committer will address us at one of these nodes, + // not at our leaf, as soon as our subtree is merged. + run { + val fullPath = BinaryTree.directPath(myLeafIndex, tree.leafCount) + pathPrivateKeys.keys.retainAll(fullPath.toSet()) + for ((i, nodeIdx) in fullPath.withIndex()) { + pathSecrets.getOrNull(i)?.let { pathPrivateKeys[nodeIdx] = it.privateKey } + } + } + // RFC 9420 §12.4.1: newly-added leaves (from Add proposals in THIS commit) // MUST be excluded from the copath resolution — they join via the Welcome // at epoch N+1 and don't need the path secret. Keeping them in the list @@ -1810,24 +1864,67 @@ class MlsGroup private constructor( BinaryTree.nodeToLeaf(resNode) in newLeavesInCommit } - // Find which encrypted secret corresponds to our position + // RFC 9420 §7.6: the committer encrypts one path secret per node + // in the copath resolution, and we decrypt at whichever of those + // nodes we hold a private key for. That is usually NOT our leaf — + // a merged subtree resolves to its parent, so from three members + // on we are addressed at an ancestor. Scan the resolution for a + // key we actually have rather than assuming our own leaf node. val myNodeIdx = BinaryTree.leafToNode(myLeafIndex) - val myResIdx = resolution.indexOf(myNodeIdx) - check(myResIdx in 0 until pathNode.encryptedPathSecret.size) { + val candidates = + resolution.withIndex().mapNotNull { (i, resNode) -> + if (i >= pathNode.encryptedPathSecret.size) { + null + } else { + val key = if (resNode == myNodeIdx) encryptionPrivateKey else pathPrivateKeys[resNode] + key?.let { Triple(i, resNode, it) } + } + } + check(candidates.isNotEmpty()) { "UpdatePath at common ancestor carries no ciphertext for us " + "(my_leaf=$myLeafIndex, my_node=$myNodeIdx, resolution=$resolution, " + + "held_path_nodes=${pathPrivateKeys.keys.sorted()}, " + "encrypted_path_secrets=${pathNode.encryptedPathSecret.size})" } - val ct = pathNode.encryptedPathSecret[myResIdx] - val pathSecret = - MlsCryptoProvider.decryptWithLabel( - encryptionPrivateKey, - "UpdatePathNode", - pathDecContextBytes, - ct.kemOutput, - ct.ciphertext, - ) + // Try each node we hold a key for rather than committing to the + // first. An Add or Remove renumbers nodes, so a retained key can + // outlive the node it belonged to; a stale one fails the AEAD + // rather than producing a wrong secret, so trying the next + // candidate is exact, not a guess. + var pathSecret: ByteArray? = null + var decryptedAt = -1 + for ((i, _, key) in candidates) { + val ct = pathNode.encryptedPathSecret[i] + pathSecret = + try { + MlsCryptoProvider.decryptWithLabel( + key, + "UpdatePathNode", + pathDecContextBytes, + ct.kemOutput, + ct.ciphertext, + ) + } catch (_: Exception) { + null + } + if (pathSecret != null) { + decryptedAt = i + break + } + } + val recoveredPathSecret = + checkNotNull(pathSecret) { + "UpdatePath at common ancestor did not decrypt with any key we hold " + + "(my_leaf=$myLeafIndex, resolution=$resolution, slot_tried=$decryptedAt, " + + "tried=${candidates.map { it.second }})" + } + + // The path secret we just recovered belongs to the common ancestor + // and ratchets up to the root, so it hands us the private key for + // every node above it on our own direct path. Those are exactly + // the nodes a later committer may address us at. + rememberPathKeys(commonAncestorNode, recoveredPathSecret) // Derive remaining path secrets from common ancestor up to root, // then one more step to reach the `commit_secret` (RFC 9420 §9.2: @@ -1842,7 +1939,7 @@ class MlsGroup private constructor( // UpdatePath node, so filtering changes which nodes carry // ciphertext but not the number of KDF steps. val stepsToRoot = unfilteredDirectPath.size - commonAncestorUnfilteredIdx - 1 - var currentSecret = pathSecret + var currentSecret = recoveredPathSecret repeat(stepsToRoot) { currentSecret = MlsCryptoProvider.deriveSecret(currentSecret, "path") } @@ -3991,6 +4088,7 @@ class MlsGroup private constructor( signingPrivateKey = state.signingPrivateKey, encryptionPrivateKey = state.encryptionPrivateKey, interimTranscriptHash = state.interimTranscriptHash, + pathPrivateKeys = state.pathPrivateKeys.toMutableMap(), ) } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupState.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupState.kt index cef888ddf1..518631e7fa 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupState.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupState.kt @@ -60,6 +60,17 @@ data class MlsGroupState( val interimTranscriptHash: ByteArray, val encryptionSecret: ByteArray, val senderRatchetStates: Map = emptyMap(), + /** + * HPKE private keys for the PARENT nodes on our own direct path, by node + * index (STATE_VERSION 3+). + * + * RFC 9420 §7.6 lets a committer address us at any node in the copath + * resolution whose key we hold — usually an ancestor rather than our leaf, + * because a merged subtree resolves to its parent. A member that keeps + * only its leaf key cannot decrypt those commits at all, and losing these + * across a restart makes the same group undecryptable on relaunch. + */ + val pathPrivateKeys: Map = emptyMap(), ) { fun encodeTls(): ByteArray { val writer = TlsWriter() @@ -115,6 +126,13 @@ data class MlsGroupState( writer.putUint32(ratchet.applicationGeneration.toLong()) } + // Direct-path node private keys (STATE_VERSION 3+). + writer.putUint32(pathPrivateKeys.size.toLong()) + for ((nodeIndex, key) in pathPrivateKeys) { + writer.putUint32(nodeIndex.toLong()) + writer.putOpaqueVarInt(key) + } + return writer.toByteArray() } @@ -135,8 +153,11 @@ data class MlsGroupState( * v1: original layout (no SecretTree ratchet positions). * v2: appends [senderRatchetStates] so restores don't reset the * ratchet to generation 0. v1 blobs still decode (empty map). + * v3: appends [pathPrivateKeys] so a restore can still decrypt an + * UpdatePath addressed at one of our ancestors. Older blobs decode + * with an empty map and refill on the next commit we process. */ - private const val STATE_VERSION = 2 + private const val STATE_VERSION = 3 fun decodeTls(data: ByteArray): MlsGroupState { val reader = TlsReader(data) @@ -197,6 +218,22 @@ data class MlsGroupState( emptyMap() } + // v3+: direct-path node private keys. Absent for older blobs, + // which restore able to decrypt only commits addressed at their + // own leaf until the next commit refills the path. + val pathPrivateKeys = + if (version >= 3 && reader.hasRemaining) { + val count = reader.readUint32().toInt() + buildMap { + repeat(count) { + val nodeIndex = reader.readUint32().toInt() + put(nodeIndex, reader.readOpaqueVarInt()) + } + } + } else { + emptyMap() + } + return MlsGroupState( groupContext = groupContext, treeBytes = treeBytes, @@ -208,6 +245,7 @@ data class MlsGroupState( interimTranscriptHash = interimTranscriptHash, encryptionSecret = encryptionSecret, senderRatchetStates = senderRatchetStates, + pathPrivateKeys = pathPrivateKeys, ) } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt index 17d6dfa8f7..6965b53086 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt @@ -26,6 +26,7 @@ import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupState import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.utils.Log import com.vitorpamplona.quartz.utils.sha256.sha256 import kotlinx.coroutines.sync.Mutex import kotlinx.coroutines.sync.withLock @@ -227,8 +228,57 @@ class MarmotConvergenceEngine( } ctx.canonicalCommits.addLast(candidateOf(commitBytes, sourceEpoch)) trim(ctx) + terminalizeIfDisbanded(groupId, ctx) } + /** + * Move a group to `Disbanded` once its lifecycle component says so. + * + * `Disbanded` is absorbing: there is no outgoing transition, no later + * branch supersedes a terminalized disband, and a replacement conversation + * is a new MLS group. Deriving it from the applied state rather than from + * a transport claim is the whole point — the only thing that can disband a + * group is an authenticated Commit that every member replays identically. + */ + private fun terminalizeIfDisbanded( + groupId: HexKey, + ctx: GroupContext, + ) { + if (ctx.lifecycle == GroupLifecycleState.DISBANDED) return + val disbanded = groupManager.getGroup(groupId)?.currentGroupState()?.isDisbanded == true + if (disbanded) ctx.lifecycle = GroupLifecycleState.DISBANDED + } + + /** + * Mark a group locally unrecoverable. + * + * Local to ONE client: it does not mean the group is dead, it means this + * client cannot safely apply more traffic until it repairs, restores, + * rejoins or discards its copy. Settling for the current local state just + * because it is the only one available is exactly what this state exists + * to prevent, so it also drops any pass in flight rather than letting it + * resolve against material we no longer trust. + */ + suspend fun markUnrecoverable(groupId: HexKey) = + mutex.withLock { + val ctx = contexts.getOrPut(groupId) { GroupContext() } + if (ctx.lifecycle == GroupLifecycleState.DISBANDED) return@withLock + ctx.lifecycle = GroupLifecycleState.UNRECOVERABLE + ctx.pass = null + } + + /** + * Clear `Unrecoverable` after a verified repair — a replacement Welcome, a + * restore, or a rejoin. `Disbanded` is NOT clearable. + */ + suspend fun markRepaired(groupId: HexKey) = + mutex.withLock { + val ctx = contexts[groupId] ?: return@withLock + if (ctx.lifecycle == GroupLifecycleState.UNRECOVERABLE) { + ctx.lifecycle = GroupLifecycleState.STABLE + } + } + /** * Offer a commit that did NOT extend the canonical tip. * @@ -431,7 +481,25 @@ class MarmotConvergenceEngine( val rewound = selectedTipId != null && selectedTipId != inputs.tipId if (rewound) { - groupManager.installState(groupId, graph.statesById.getValue(selectedTipId)) + // The selected tip's state must be rebuildable from retained + // material. When it is not — the anchor the rewind needs fell out + // of the window, or a retained state failed to replay — this + // client cannot reach the branch the group selected, and the one + // thing it must NOT do is keep its own losing branch and call that + // settled. That is exactly `Unrecoverable`: local, repairable, and + // never resolved by pretending the pass succeeded. + val target = graph.statesById[selectedTipId] + if (target == null) { + markUnrecoverable(groupId) + return null + } + try { + groupManager.installState(groupId, target) + } catch (e: Exception) { + Log.w("MarmotConvergence", "rewind of $groupId to the selected branch failed: ${e.message}", e) + markUnrecoverable(groupId) + return null + } } return mutex.withLock { @@ -458,6 +526,7 @@ class MarmotConvergenceEngine( trimCandidates(ctx) ctx.divergent.clear() ctx.pass = null + terminalizeIfDisbanded(groupId, ctx) val epoch = groupManager.getGroup(groupId)?.epoch ?: inputs.tipEpoch ConvergenceResolution( groupId = groupId, diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt index 8f8fce335c..dfdcee4033 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt @@ -122,7 +122,25 @@ enum class PublishOutcome { /** At least one endpoint in the recipient scope acknowledged an accept. */ CONFIRMED, - /** Every endpoint rejected, or the attempt is known not to have been accepted. */ + /** + * The attempt did not confirm, and we cannot prove no endpoint took it. + * + * A timeout, a dropped connection, or an OK that never arrived all land + * here, and none of them means "no peer has this commit". The obligation + * stays durable and the group stays held, because minting a REPLACEMENT + * commit for the same epoch would fork us against whoever did receive the + * first one. This is the default for a publisher that answers with a + * boolean: `false` is "unconfirmed", not "rejected". + */ + UNKNOWN, + + /** + * The attempt can never succeed and there is nothing to retry — an + * unreadable record, or bytes no endpoint could ever accept. + * + * Discards the obligation. Use it only when retrying is impossible, never + * as a synonym for "did not get an OK". + */ FAILED, } @@ -280,6 +298,17 @@ class MarmotPublishGate( groupManager.installState(obligation.groupId, obligation.pendingState) } + if (outcome == PublishOutcome.UNKNOWN) { + // Keep the record and keep the group held. The staged commit was + // never applied, so nothing local is wrong — what is unknown is + // whether a PEER took it, and preparing a fresh commit while that + // is unknown is exactly the fork this gate exists to prevent. + return mutex.withLock { + lifecycles[obligation.groupId] = GroupLifecycleState.PENDING_PUBLISH + GroupLifecycleState.PENDING_PUBLISH + } + } + store.delete(obligationId) return mutex.withLock { pending.remove(obligationId) diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt index 34be9d3317..080f997502 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt @@ -173,12 +173,14 @@ class MlsGroupStateTest { val state = group.saveState() val bytes = state.encodeTls() - // First two bytes should be the version (uint16 = 2) + // First two bytes are the state version (uint16). v3 appends the + // direct-path node private keys; older blobs still decode, so the + // version only ever moves forward when the layout gains a field. val reader = com.vitorpamplona.quartz.marmot.mls.codec .TlsReader(bytes) val version = reader.readUint16() - assertEquals(2, version) + assertEquals(3, version) } @Test diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/UpdatePathAncestorTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/UpdatePathAncestorTest.kt new file mode 100644 index 0000000000..e078989678 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/UpdatePathAncestorTest.kt @@ -0,0 +1,134 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mls.group + +import com.vitorpamplona.quartz.marmot.mls.messages.KeyPackageBundle +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertNotNull +import kotlin.test.assertTrue + +/** + * RFC 9420 §7.6 does not say "the committer encrypts the path secret to your + * leaf". It says the committer encrypts one secret per node in the copath + * RESOLUTION, and each member decrypts at whichever of those nodes it holds a + * private key for. A merged subtree resolves to its parent, so from three + * members on the ciphertext meant for us is addressed at an ANCESTOR. + * + * Keeping only our leaf key therefore worked for two members and failed for + * three, which is exactly how it survived every same-implementation test: + * `UpdatePath at common ancestor carries no ciphertext for us (my_leaf=1, + * my_node=2, resolution=[1], encrypted_path_secrets=1)`. Node 1 was the parent + * we had held a key for since the commit that merged us, and we never stored + * it. + */ +class UpdatePathAncestorTest { + private fun bundleFor(seed: Byte): KeyPackageBundle = + MlsGroup + .create(identity = ByteArray(32) { seed }) + .createKeyPackage(identity = ByteArray(32) { seed }, signingKey = ByteArray(32) { seed }) + + @Test + fun aThirdPartyCommitReachesUsAtAMergedAncestor() { + // Alice creates, adds Bob, then adds Carol. After Bob's own commit the + // {alice, bob} subtree is merged, so a later commit from Carol + // resolves that subtree to its parent rather than to Bob's leaf. + val alice = MlsGroup.create(identity = ByteArray(32) { 0x0a }) + val bobBundle = bundleFor(0x0b) + val carolBundle = bundleFor(0x0c) + + alice.proposeAdd(bobBundle.keyPackage.toTlsBytes()) + val addBob = alice.commit() + val bob = MlsGroup.processWelcome(assertNotNull(addBob.welcomeBytes), bobBundle) + + alice.proposeAdd(carolBundle.keyPackage.toTlsBytes()) + val addCarol = alice.commit() + bob.processFramedCommit(addCarol.framedCommitBytes) + val carol = MlsGroup.processWelcome(assertNotNull(addCarol.welcomeBytes), carolBundle) + + // Bob commits: this merges Bob's direct path and hands him the parent + // keys the next committer will address him at. + val bobCommit = bob.commit() + alice.processFramedCommit(bobCommit.framedCommitBytes) + carol.processFramedCommit(bobCommit.framedCommitBytes) + + // Carol commits. Bob is now inside a merged subtree, so Carol's + // UpdatePath addresses him at a parent node, not at his leaf. + val carolCommit = carol.commit() + alice.processFramedCommit(carolCommit.framedCommitBytes) + bob.processFramedCommit(carolCommit.framedCommitBytes) + + assertEquals(carol.epoch, bob.epoch) + assertEquals(carol.epoch, alice.epoch) + assertContentEquals( + carol.exporterSecret("marmot", "group-event".encodeToByteArray(), 32), + bob.exporterSecret("marmot", "group-event".encodeToByteArray(), 32), + ) + assertContentEquals( + carol.exporterSecret("marmot", "group-event".encodeToByteArray(), 32), + alice.exporterSecret("marmot", "group-event".encodeToByteArray(), 32), + ) + } + + /** + * The keys are useless if a restart drops them: the group would keep + * working until the next commit addressed us at an ancestor and then stop + * dead, with nothing in the log tying the failure to the relaunch. + */ + @Test + fun theAncestorKeysSurviveASaveAndRestore() { + val alice = MlsGroup.create(identity = ByteArray(32) { 0x0a }) + val bobBundle = bundleFor(0x0b) + val carolBundle = bundleFor(0x0c) + + alice.proposeAdd(bobBundle.keyPackage.toTlsBytes()) + val addBob = alice.commit() + var bob = MlsGroup.processWelcome(assertNotNull(addBob.welcomeBytes), bobBundle) + + alice.proposeAdd(carolBundle.keyPackage.toTlsBytes()) + val addCarol = alice.commit() + bob.processFramedCommit(addCarol.framedCommitBytes) + val carol = MlsGroup.processWelcome(assertNotNull(addCarol.welcomeBytes), carolBundle) + + val bobCommit = bob.commit() + alice.processFramedCommit(bobCommit.framedCommitBytes) + carol.processFramedCommit(bobCommit.framedCommitBytes) + + // Round-trip Bob through the persisted blob, exactly as a relaunch does. + val saved = bob.saveState() + assertTrue(saved.pathPrivateKeys.isNotEmpty(), "a committer holds keys for its own direct path") + bob = MlsGroup.restore(MlsGroupStateCodec.roundTrip(saved)) + + val carolCommit = carol.commit() + bob.processFramedCommit(carolCommit.framedCommitBytes) + + assertEquals(carol.epoch, bob.epoch) + assertContentEquals( + carol.exporterSecret("marmot", "group-event".encodeToByteArray(), 32), + bob.exporterSecret("marmot", "group-event".encodeToByteArray(), 32), + ) + } +} + +private object MlsGroupStateCodec { + fun roundTrip(state: MlsGroupState): MlsGroupState = MlsGroupState.decodeTls(state.encodeTls()) +} From 6fb364394dac9394102f9106ad3a7baeeab3dbef Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 07:03:18 +0000 Subject: [PATCH 25/79] fix(marmot): a joiner needs its Welcome path secret, and a tree it can accept MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Two MLS defects that between them meant nobody but a group's creator could successfully invite anyone into a group with three or more members. **GroupSecrets.path_secret was neither sent nor used.** A Commit's UpdatePath refreshes every node from the committer's leaf to the root, and a refreshed node has no unmerged leaves — so a member added by that same Commit is MERGED at their common ancestor the instant it joins. RFC 9420 §12.4.1 also excludes newly-added leaves from the copath resolution, so that ancestor's secret is not in the UpdatePath at all. The only place it exists is `GroupSecrets.path_secret` (§12.4.3.1), and we sent `null` and ignored what MDK sent us. The joiner therefore held nothing above its own leaf, and the first commit from the other side of the tree — which resolves the joiner's sibling subtree to that merged ancestor — was undecryptable. MDK reported it exactly: UpdatePath at common ancestor carries no ciphertext for us (my_leaf=1, my_node=2, resolution=[1], held_path_nodes=[]) **Parent-hash validation was stricter than RFC 9420 and rejected valid trees.** We re-derived every COMMIT-source leaf's `parent_hash` top-down from the CURRENT tree and demanded a match. §7.9.2 makes a much weaker claim, per PARENT node: for each non-blank parent P, exactly one of its subtrees must contain a node whose `parent_hash` equals `ParentHash(P, other_subtree)`. The strong version cannot hold — a later commit refreshes ancestors and a later Add changes the tree's shape, so a leaf set two epochs ago legitimately no longer re-derives — and it rejected the GroupInfo of every group whose inviter was not the last committer. Both halves need the RFC's `original_sibling_tree_hash`: the sibling subtree's tree hash with the parent's `unmerged_leaves` removed. Those are exactly the leaves added since the parent was populated, so excluding them reconstructs the tree as the parent's author saw it. `RatchetTree` gains `originalTreeHash` and `resolutionExcluding` for it. The regression test builds the case that no two-party test can reach: a member added by its own sibling, so its ancestor is merged on arrival, followed by a commit from the other subtree. It fails on either half of this change alone. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../quartz/marmot/mls/group/MlsGroup.kt | 214 +++++++++--------- .../quartz/marmot/mls/tree/RatchetTree.kt | 107 +++++++++ .../quartz/marmot/MarmotMipBehaviorTest.kt | 10 +- .../mls/group/UpdatePathAncestorTest.kt | 55 +++++ 4 files changed, 283 insertions(+), 103 deletions(-) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index b44a71cbe1..09ff4aeb05 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -67,6 +67,7 @@ import com.vitorpamplona.quartz.marmot.mls.tree.Extension import com.vitorpamplona.quartz.marmot.mls.tree.LeafNode import com.vitorpamplona.quartz.marmot.mls.tree.LeafNodeSource import com.vitorpamplona.quartz.marmot.mls.tree.Lifetime +import com.vitorpamplona.quartz.marmot.mls.tree.PathSecretAndKey import com.vitorpamplona.quartz.marmot.mls.tree.RatchetTree import com.vitorpamplona.quartz.marmot.mls.tree.UpdatePathNode import com.vitorpamplona.quartz.nip01Core.core.HexKey @@ -938,7 +939,7 @@ class MlsGroup private constructor( // Build Welcome for added members val welcomeBytes = if (addedMembers.isNotEmpty()) { - buildWelcome(addedMembers) + buildWelcome(addedMembers, pathSecrets) } else { null } @@ -2849,7 +2850,34 @@ class MlsGroup private constructor( groupContext = groupContext.copy(extensions = newExtensions) } - private fun buildWelcome(addedMembers: List>): ByteArray { + /** + * Lowest common ancestor of [myLeafIndex] and [otherLeafIndex] expressed as + * an index INTO our own direct path, or -1 when there is none. + * + * Our direct path runs leaf-ward to root-ward, so the first node it shares + * with the other leaf's direct path is their lowest common ancestor — and + * its position is also the index of that node's path secret in + * `derivePathSecrets`, which walks the same list. + */ + private fun directPathIndexOfAncestorWith(otherLeafIndex: Int): Int { + val mine = BinaryTree.directPath(myLeafIndex, tree.leafCount) + val theirs = BinaryTree.directPath(otherLeafIndex, tree.leafCount).toSet() + return mine.indexOfFirst { it in theirs } + } + + /** + * @param committerPathSecrets the path secrets this commit minted for the + * committer's own direct path, in direct-path order. RFC 9420 §12.4.3.1: + * when the Commit carries an UpdatePath, each new member's GroupSecrets + * MUST carry the path secret at the lowest common ancestor of that + * member's leaf and the committer's. Without it the joiner holds no key + * for any ancestor, and the FIRST later commit that addresses it at one — + * which is every commit once its subtree is merged — is undecryptable. + */ + private fun buildWelcome( + addedMembers: List>, + committerPathSecrets: List, + ): ByteArray { // Add ratchet tree as GroupInfo extension (RFC 9420 Section 12.4.3.3) val treeWriter = TlsWriter() tree.encodeTls(treeWriter) @@ -2905,10 +2933,11 @@ class MlsGroup private constructor( // Build per-member encrypted group secrets val secrets = addedMembers.map { (leafIdx, kp) -> + val ancestorIdx = directPathIndexOfAncestorWith(leafIdx) val groupSecrets = GroupSecrets( joinerSecret = epochSecrets.joinerSecret, - pathSecret = null, + pathSecret = committerPathSecrets.getOrNull(ancestorIdx)?.pathSecret, ) val gsBytes = groupSecrets.toTlsBytes() @@ -3279,103 +3308,72 @@ class MlsGroup private constructor( } /** - * RFC 9420 §7.9 parent_hash chain verification for a STATIC tree — - * specifically, the ratchet_tree extension a joiner reconstructs - * from a Welcome's GroupInfo. Without this, a malicious or - * misconfigured GroupInfo signer could ship a tree whose stored - * parent_hash values are inconsistent with the actual tree shape; - * peers that DO validate would reject every commit produced from - * this tree, but the joiner wouldn't notice until the next epoch - * silently rolled back. - * - * For each leaf with `source == COMMIT` (the only source that - * carries a parent_hash payload), recompute the parent_hash chain - * top-down on the leaf's filtered direct path and verify the - * leaf's stored parent_hash matches what the chain produces. + * RFC 9420 §7.9.2 "Verifying Parent Hashes", over the STATIC tree a + * joiner reconstructs from a Welcome's GroupInfo. * + * Without it a malicious or misconfigured GroupInfo signer could ship + * a tree whose stored parent_hash values do not match its shape; peers + * that DO validate would reject every commit produced from it, and the + * joiner would not notice until an epoch silently rolled back. * Returns `null` on success, or a human-readable failure reason. - * Skips KEY_PACKAGE and UPDATE leaves — those don't carry a - * meaningful parent_hash on the wire. + * + * The rule is per PARENT node, not per leaf: for each non-blank parent + * P, EXACTLY ONE of its two subtrees must contain a node whose + * `parent_hash` equals `ParentHash(P, other_subtree)`. That node is the + * child the committer descended through when it set P; the other + * subtree supplies the sibling hash. + * + * We used to re-derive every COMMIT-source leaf's `parent_hash` + * top-down from the CURRENT tree and demand a match. That is a much + * stronger claim than the RFC makes, and a false one: a later commit + * refreshes ancestors and a later Add changes the tree's shape, so a + * leaf set two epochs ago legitimately no longer re-derives. It + * rejected every tree where the inviter was not the last committer — + * in practice, every group invitation sent by anyone but the creator. + * + * Both sibling hashes and both resolutions exclude P's + * `unmerged_leaves`: those are precisely the leaves added after P was + * populated, so removing them reconstructs the tree as P's author saw + * it. */ internal fun verifyTreeParentHashesForJoin(tree: RatchetTree): String? { if (tree.leafCount == 0) return null - val nodeCount = BinaryTree.nodeCount(tree.leafCount) - for (leafIdx in 0 until tree.leafCount) { - val leaf = tree.getLeaf(leafIdx) ?: continue - if (leaf.leafNodeSource != LeafNodeSource.COMMIT) continue - val expected = computeStaticLeafParentHash(tree, leafIdx, nodeCount) - val stored = leaf.parentHash ?: ByteArray(0) - if (!stored.contentEquals(expected)) { - return "leaf $leafIdx parent_hash mismatch (stored=${stored.size}B, expected=${expected.size}B)" + for (parentIdx in tree.parentNodeIndices()) { + val key = tree.parentEncryptionKeyOf(parentIdx) ?: continue + val storedParentHash = tree.parentHashOf(parentIdx) ?: ByteArray(0) + val excluded = tree.unmergedLeavesOf(parentIdx) + val leftIdx = BinaryTree.left(parentIdx) + val rightIdx = BinaryTree.right(parentIdx) + + fun hashWithSibling(siblingIdx: Int) = + MlsCryptoProvider.hash( + encodeParentHashInput( + encryptionKey = key, + parentHash = storedParentHash, + originalSiblingTreeHash = tree.originalTreeHash(siblingIdx, excluded), + ), + ) + + val expectedInLeft = hashWithSibling(rightIdx) + val expectedInRight = hashWithSibling(leftIdx) + + val foundLeft = + tree.resolutionExcluding(leftIdx, excluded).any { + tree.parentHashOf(it)?.contentEquals(expectedInLeft) == true + } + val foundRight = + tree.resolutionExcluding(rightIdx, excluded).any { + tree.parentHashOf(it)?.contentEquals(expectedInRight) == true + } + + if (foundLeft == foundRight) { + return "parent node $parentIdx is not parent-hash valid " + + "(matched left=$foundLeft right=$foundRight)" } } return null } - /** - * Top-down recomputation of the parent_hash that a COMMIT-source - * leaf at [leafIdx] should carry, given the current tree shape. - * Mirrors [computeSenderParentHashes] but uses - * [RatchetTree.treeHashNode] for sibling tree hashes (no - * pre-update / post-update distinction in static validation). - */ - private fun computeStaticLeafParentHash( - tree: RatchetTree, - leafIdx: Int, - nodeCount: Int, - ): ByteArray { - val (filteredDp, _) = tree.filteredDirectPath(leafIdx) - if (filteredDp.isEmpty()) return ByteArray(0) - - // Walk top-down from root, propagating the expected parent_hash. - val hashes = mutableMapOf() - hashes[filteredDp.last()] = ByteArray(0) - for (i in filteredDp.size - 2 downTo 0) { - val xIdx = filteredDp[i] - val parentIdx = filteredDp[i + 1] - val parentNode = tree.getNode(parentIdx) - if (parentNode !is com.vitorpamplona.quartz.marmot.mls.tree.TreeNode.Parent) { - hashes[xIdx] = ByteArray(0) - continue - } - // x's sibling under parent — parent has children left/right; - // sibling is whichever isn't x's ancestor. - val left = BinaryTree.left(parentIdx) - val right = BinaryTree.right(parentIdx) - val siblingIdx = if (xIdx == left) right else left - val siblingTreeHash = tree.treeHashNode(siblingIdx) - hashes[xIdx] = - MlsCryptoProvider.hash( - encodeParentHashInput( - encryptionKey = parentNode.parentNode.encryptionKey, - parentHash = hashes[parentIdx] ?: ByteArray(0), - originalSiblingTreeHash = siblingTreeHash, - ), - ) - } - - // The leaf's expected parent_hash is the chain value AT the - // immediate parent (filteredDp[0]) — same convention as the - // committer-side computation in [computeSenderParentHashes]. - val immediateParentIdx = filteredDp.first() - val immediateParent = tree.getNode(immediateParentIdx) - if (immediateParent !is com.vitorpamplona.quartz.marmot.mls.tree.TreeNode.Parent) { - return ByteArray(0) - } - // Sibling of the leaf's node at the immediate parent. - val leafNodeIdx = BinaryTree.leafToNode(leafIdx) - val left = BinaryTree.left(immediateParentIdx) - val right = BinaryTree.right(immediateParentIdx) - val leafSiblingIdx = if (leafNodeIdx == left) right else left - return MlsCryptoProvider.hash( - encodeParentHashInput( - encryptionKey = immediateParent.parentNode.encryptionKey, - parentHash = hashes[immediateParentIdx] ?: ByteArray(0), - originalSiblingTreeHash = tree.treeHashNode(leafSiblingIdx), - ), - ) - } - /** * Default MLS leaf Capabilities that advertise support for Marmot's * required extensions and proposals so new members can join a group @@ -3760,17 +3758,31 @@ class MlsGroup private constructor( interimInput.putOpaqueVarInt(confirmationTag) val interimTranscriptHash = MlsCryptoProvider.hash(interimInput.toByteArray()) - return MlsGroup( - groupContext = groupContext, - tree = tree, - myLeafIndex = myLeafIndex, - epochSecrets = epochSecrets, - secretTree = secretTree, - initSecret = epochSecrets.initSecret, - signingPrivateKey = bundle.signaturePrivateKey, - encryptionPrivateKey = bundle.encryptionPrivateKey, - interimTranscriptHash = interimTranscriptHash, - ) + // RFC 9420 §12.4.3.1: when the Commit that added us carried an + // UpdatePath, GroupSecrets carries the path secret at the lowest + // common ancestor of our leaf and the committer's. Deriving our + // direct-path keys from it is not optional bookkeeping — our + // subtree is already MERGED in the tree this Welcome hands us, so + // the very next commit addresses us at an ancestor, and a joiner + // that dropped this secret cannot decrypt a single one of them. + val joined = + MlsGroup( + groupContext = groupContext, + tree = tree, + myLeafIndex = myLeafIndex, + epochSecrets = epochSecrets, + secretTree = secretTree, + initSecret = epochSecrets.initSecret, + signingPrivateKey = bundle.signaturePrivateKey, + encryptionPrivateKey = bundle.encryptionPrivateKey, + interimTranscriptHash = interimTranscriptHash, + ) + groupSecrets.pathSecret?.let { pathSecret -> + val ancestorIdx = joined.directPathIndexOfAncestorWith(groupInfo.signer) + val fullPath = BinaryTree.directPath(myLeafIndex, tree.leafCount) + fullPath.getOrNull(ancestorIdx)?.let { joined.rememberPathKeys(it, pathSecret) } + } + return joined } /** diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/tree/RatchetTree.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/tree/RatchetTree.kt index 77aba3bfed..84b54bbb43 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/tree/RatchetTree.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/tree/RatchetTree.kt @@ -266,6 +266,113 @@ class RatchetTree( return MlsCryptoProvider.hash(writer.toByteArray()) } + /** + * RFC 9420 §7.9.2 `original_sibling_tree_hash`: the tree hash of the + * subtree rooted at [nodeIndex] computed as if every leaf in + * [excludedLeaves] were blank. + * + * This is what makes a stored `parent_hash` verifiable LATER. The plain + * tree hash of a sibling subtree changes every time a leaf is added to it, + * so re-deriving a parent_hash from the current tree disagrees with the + * value its author computed — even though nothing about that author's + * commit was wrong. Excluding the parent's `unmerged_leaves` removes + * exactly the leaves added since the parent was last set, which is the set + * that moved. + */ + internal fun originalTreeHash( + nodeIndex: Int, + excludedLeaves: Set, + ): ByteArray { + if (BinaryTree.isLeaf(nodeIndex)) { + val leafIndex = BinaryTree.nodeToLeaf(nodeIndex) + val writer = TlsWriter() + writer.putUint8(1) + writer.putUint32(leafIndex.toLong()) + val leaf = getNode(nodeIndex).takeIf { leafIndex !in excludedLeaves } + if (leaf != null) { + writer.putUint8(1) + (leaf as TreeNode.Leaf).leafNode.encodeTls(writer) + } else { + writer.putUint8(0) + } + return MlsCryptoProvider.hash(writer.toByteArray()) + } + + val leftHash = originalTreeHash(BinaryTree.left(nodeIndex), excludedLeaves) + val rightHash = originalTreeHash(BinaryTree.right(nodeIndex), excludedLeaves) + + val writer = TlsWriter() + writer.putUint8(2) + val parent = getNode(nodeIndex) + if (parent != null) { + writer.putUint8(1) + // The excluded leaves are removed from this node's own + // unmerged_leaves too: they are the leaves whose addition this + // hash is meant to be blind to. + val node = (parent as TreeNode.Parent).parentNode + node.copy(unmergedLeaves = node.unmergedLeaves.filterNot { it in excludedLeaves }).encodeTls(writer) + } else { + writer.putUint8(0) + } + writer.putOpaqueVarInt(leftHash) + writer.putOpaqueVarInt(rightHash) + + return MlsCryptoProvider.hash(writer.toByteArray()) + } + + /** + * Resolution of [nodeIndex] with [excludedLeaves] treated as blank. + * + * Parent-hash validation has to reconstruct the tree as it stood when the + * parent was populated, and the leaves added since are exactly the ones in + * that parent's `unmerged_leaves`. + */ + fun resolutionExcluding( + nodeIndex: Int, + excludedLeaves: Set, + ): List { + val node = getNode(nodeIndex) + if (BinaryTree.isLeaf(nodeIndex)) { + val leafIndex = BinaryTree.nodeToLeaf(nodeIndex) + return if (node == null || leafIndex in excludedLeaves) emptyList() else listOf(nodeIndex) + } + if (node != null) { + val result = mutableListOf(nodeIndex) + if (node is TreeNode.Parent) { + for (leaf in node.parentNode.unmergedLeaves) { + if (leaf !in excludedLeaves) result.add(BinaryTree.leafToNode(leaf)) + } + } + return result + } + return resolutionExcluding(BinaryTree.left(nodeIndex), excludedLeaves) + + resolutionExcluding(BinaryTree.right(nodeIndex), excludedLeaves) + } + + /** The `parent_hash` field a node carries, or null when it has none. */ + internal fun parentHashOf(nodeIndex: Int): ByteArray? = + when (val node = getNode(nodeIndex)) { + is TreeNode.Parent -> node.parentNode.parentHash + is TreeNode.Leaf -> node.leafNode.parentHash + else -> null + } + + /** The encryption key of the parent node at [nodeIndex], if it is one. */ + internal fun parentEncryptionKeyOf(nodeIndex: Int): ByteArray? = (getNode(nodeIndex) as? TreeNode.Parent)?.parentNode?.encryptionKey + + /** Node indices of every non-blank parent node, root-inclusive. */ + internal fun parentNodeIndices(): List = + (0 until BinaryTree.nodeCount(_leafCount)) + .filter { !BinaryTree.isLeaf(it) && getNode(it) is TreeNode.Parent } + + /** Unmerged leaves recorded on the parent node at [nodeIndex], if any. */ + internal fun unmergedLeavesOf(nodeIndex: Int): Set = + (getNode(nodeIndex) as? TreeNode.Parent) + ?.parentNode + ?.unmergedLeaves + ?.toSet() + .orEmpty() + /** * RFC 9420 §4.1.2 "filtered direct path": * the direct path of a leaf node L, with any parent node removed whose diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotMipBehaviorTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotMipBehaviorTest.kt index 3d56e8839d..9b35b3a6a8 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotMipBehaviorTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotMipBehaviorTest.kt @@ -773,12 +773,18 @@ class MarmotMipBehaviorTest { } assertTrue(tamperedLeafIdx >= 0, "test setup must produce a COMMIT-source leaf") + // RFC 9420 §7.9.2 states the rule per PARENT node — exactly one of + // its subtrees must contain the matching parent_hash — so the + // rejection names the parent whose invariant broke rather than the + // leaf that was edited. The tamper is still caught: that leaf was + // the one descendant carrying its parent's expected hash. val reason = MlsGroup.verifyTreeParentHashesForJoin(originalTree) assertNotNull(reason) assertTrue( - reason.contains("leaf $tamperedLeafIdx parent_hash mismatch"), - "rejection message must name the tampered leaf: $reason", + reason.contains("is not parent-hash valid"), + "rejection must name the parent whose invariant broke: $reason", ) + assertTrue(tamperedLeafIdx >= 0) } // ---------------------------------------------------------------------- diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/UpdatePathAncestorTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/UpdatePathAncestorTest.kt index e078989678..8aa92dabbc 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/UpdatePathAncestorTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/UpdatePathAncestorTest.kt @@ -127,6 +127,61 @@ class UpdatePathAncestorTest { bob.exporterSecret("marmot", "group-event".encodeToByteArray(), 32), ) } + + /** + * The case MDK actually produced, and the one no two-party test can reach. + * + * A Commit's UpdatePath refreshes every node from the committer's leaf to + * the root, and a refreshed node has no unmerged leaves — so a member added + * by that same Commit is MERGED at their common ancestor the instant it + * joins. RFC 9420 §12.4.1 also excludes newly-added leaves from the copath + * resolution, so that ancestor's secret is not in the UpdatePath at all. + * The only place it exists is `GroupSecrets.path_secret` (§12.4.3.1). + * + * Drop it and the joiner holds nothing above its own leaf. The next commit + * from the OTHER side of the tree resolves the joiner's sibling subtree to + * that merged ancestor, and the joiner cannot decrypt it — which is exactly + * what MDK produced: `resolution=[1], held_path_nodes=[]`. + */ + @Test + fun aJoinerDerivesItsMergedAncestorKeyFromTheWelcomePathSecret() { + val alice = MlsGroup.create(identity = ByteArray(32) { 0x0a }) + val bobBundle = bundleFor(0x0b) + val carolBundle = bundleFor(0x0c) + val daveBundle = bundleFor(0x0d) + + alice.proposeAdd(bobBundle.keyPackage.toTlsBytes()) + val addBob = alice.commit() + val bob = MlsGroup.processWelcome(assertNotNull(addBob.welcomeBytes), bobBundle) + + alice.proposeAdd(carolBundle.keyPackage.toTlsBytes()) + val addCarol = alice.commit() + bob.processFramedCommit(addCarol.framedCommitBytes) + val carol = MlsGroup.processWelcome(assertNotNull(addCarol.welcomeBytes), carolBundle) + + // Dave is added by CAROL, his own sibling. Their common ancestor is the + // parent of their two leaves, and Carol's UpdatePath refreshes it — so + // Dave is merged there on arrival and gets that node's secret only + // through the Welcome. + carol.proposeAdd(daveBundle.keyPackage.toTlsBytes()) + val addDave = carol.commit() + alice.processFramedCommit(addDave.framedCommitBytes) + bob.processFramedCommit(addDave.framedCommitBytes) + val dave = MlsGroup.processWelcome(assertNotNull(addDave.welcomeBytes), daveBundle) + + // A commit from the other subtree. Dave's sibling subtree resolves to + // the merged ancestor, so this addresses Dave there, not at his leaf. + val aliceCommit = alice.commit() + bob.processFramedCommit(aliceCommit.framedCommitBytes) + carol.processFramedCommit(aliceCommit.framedCommitBytes) + dave.processFramedCommit(aliceCommit.framedCommitBytes) + + assertEquals(alice.epoch, dave.epoch) + assertContentEquals( + alice.exporterSecret("marmot", "group-event".encodeToByteArray(), 32), + dave.exporterSecret("marmot", "group-event".encodeToByteArray(), 32), + ) + } } private object MlsGroupStateCodec { From e493ecbe6e1c50459e24c7688b23e4372c2ceca0 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 08:20:37 +0000 Subject: [PATCH 26/79] fix(marmot): a last-resort KeyPackage is not single-use MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We publish every KeyPackage marked last resort, and then threw away its private keys the moment one Welcome consumed it. Those two things cannot both be true. OpenMLS is explicit about the contract — on the Welcome path it deletes the consumed bundle only `if !key_package.last_resort()` and otherwise logs "KeyPackage has a last-resort marker, not deleting" — and MDK leans on it: it marks all of its own KeyPackages last resort, caches the peer KeyPackage it resolved in its user directory, and invites from that same cached copy every time after. So the first invite addressed to us worked and every one after it died on "No matching KeyPackageBundle", which is four of the interop harness's failures. Consumed bundles now stay reachable when the KeyPackage says they may be, bounded on both axes: at most eight of them, and never past the KeyPackage's own not_after. That retention is the entire forward-secrecy cost of the last-resort marker, and it is a cost we already accepted by publishing the marker. Two things had to be right for it to work at all: - `isLastResort()` has to read both carriers. The MIP-era profile sets MLS extension type 0x000A on the KeyPackage; the current profile — the one we actually publish — carries a `last_resort_key_package` component inside the KeyPackage-level app_data_dictionary. Reading only the first made every KeyPackage we ship look single-use. - The Welcome lookup has to trust the MLS refs over the Nostr "e" tag. RFC 9420 addresses each EncryptedGroupSecrets to a KeyPackageRef and the joiner takes the first it holds keys for; the "e" tag is a routing hint an inviter can get wrong, and MDK gets it wrong exactly here — it stamps the event id of its cached copy, which is stale the moment we rotate. Refs first, tag as fallback. The restore path also stopped throwing the whole snapshot away when the eventId→slot index is empty. It drops the active bundles that index made unreachable, and keeps the retained bundles (keyed by event id, always reachable) and the named slot d-tags (a fresh d-tag would republish into a new addressable slot and orphan the old one). Harness: reset A's amy home and the relay database at the start of every run, keeping the relay build. wnd already wiped B's and C's data dirs, but A's store and the relay's events survived, and the leftovers are not inert — a KeyPackage from an earlier run is still on the relay to be invited with, and old kind:445 events still arrive undecryptable. That drift alone accounted for tests 03 and 08. `--reuse-state` opts out and `--tests "..."` runs a subset. Interop: 10 → 14 of 17 passing. 05, 12, 14 and 15 (every "A never received invite") now pass, as do 03 and 08. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- cli/tests/marmot/marmot-interop-headless.sh | 72 +++-- .../quartz/marmot/MarmotInboundProcessor.kt | 70 +++-- .../KeyPackageRotationManager.kt | 186 ++++++++++--- .../marmot/mls/messages/MlsKeyPackage.kt | 27 ++ .../LastResortKeyPackageReuseTest.kt | 256 ++++++++++++++++++ 5 files changed, 542 insertions(+), 69 deletions(-) create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/LastResortKeyPackageReuseTest.kt diff --git a/cli/tests/marmot/marmot-interop-headless.sh b/cli/tests/marmot/marmot-interop-headless.sh index 3d18d10f91..a1f058ca53 100755 --- a/cli/tests/marmot/marmot-interop-headless.sh +++ b/cli/tests/marmot/marmot-interop-headless.sh @@ -9,7 +9,8 @@ # any human prompts — all checks run to completion and the exit code # reflects pass/fail totals. # -# Usage: ./marmot-interop-headless.sh [--port N] [--no-build] +# Usage: ./marmot-interop-headless.sh [--port N] [--no-build] [--reuse-state] +# [--tests "name ..."] # set -uo pipefail @@ -53,6 +54,16 @@ RELAY_DATA="$STATE_DIR/relay" RELAY_PORT="${RELAY_PORT:-8080}" RELAY_URL="ws://$RELAY_HOST:$RELAY_PORT" NO_BUILD=0 +# Every run starts from empty stores. wnd already wipes B's and C's data dirs +# on each start, but A's amy home and the relay's SQLite file used to survive, +# and the leftovers are not inert: a KeyPackage A published in an earlier run +# is still on the relay for B to invite with, an old group's kind:445 events +# still arrive and fail to decrypt, and A's cursors still say it has seen them. +# That drift is what made tests 03 and 08 fail on a dirty tree and pass on a +# clean one. Pass --reuse-state when you are deliberately debugging carry-over. +RESET_STATE=1 +# Space-separated test function names; empty means the full suite below. +ONLY_TESTS="" # Required as of MDK 0.9.x. `validate_relay_url` accepts `wss://` # unconditionally but `ws://` only for a loopback host AND only behind this @@ -75,6 +86,8 @@ while [[ $# -gt 0 ]]; do --port) RELAY_PORT="$2"; RELAY_URL="ws://$RELAY_HOST:$RELAY_PORT"; shift ;; --host) RELAY_HOST="$2"; RELAY_URL="ws://$RELAY_HOST:$RELAY_PORT"; shift ;; --no-build) NO_BUILD=1 ;; + --reuse-state) RESET_STATE=0 ;; + --tests) ONLY_TESTS="$2"; shift ;; -h|--help) sed -n '3,14p' "${BASH_SOURCE[0]}" | sed 's/^# \?//' exit 0 ;; @@ -83,6 +96,12 @@ while [[ $# -gt 0 ]]; do shift done +if [[ $RESET_STATE -eq 1 && -d "$STATE_DIR" ]]; then + # Keep the relay checkout + its build (minutes to rebuild) and the log and + # results history; drop everything that holds protocol state. + rm -rf "$STATE_DIR/.amy" "$B_DIR" "$C_DIR" "$RELAY_DATA" +fi + mkdir -p "$STATE_DIR" "$LOG_DIR" "$B_DIR/logs" "$C_DIR/logs" : >"$LOG_FILE" : >"$RESULTS_FILE" @@ -129,20 +148,37 @@ ensure_identity B ensure_identity C configure_relays -test_01_keypackage_discovery -test_02_a_creates_group -test_03_b_creates_group -test_04_three_member_group -test_05_b_adds_a_existing -test_06_member_removal -test_07_metadata_rename -test_08_admin_promote_demote -test_17_group_image_commit -test_09_reply_react_unreact -test_10_concurrent_commits -test_11_leave_group -test_12_offline_catchup -test_13_keypackage_rotation -test_14_wn_removes_a -test_15_wn_member_leaves -test_16_wn_keypackage_rotation +ALL_TESTS=( + test_01_keypackage_discovery + test_02_a_creates_group + test_03_b_creates_group + test_04_three_member_group + test_05_b_adds_a_existing + test_06_member_removal + test_07_metadata_rename + test_08_admin_promote_demote + test_17_group_image_commit + test_09_reply_react_unreact + test_10_concurrent_commits + test_11_leave_group + test_12_offline_catchup + test_13_keypackage_rotation + test_14_wn_removes_a + test_15_wn_member_leaves + test_16_wn_keypackage_rotation +) + +# --tests runs a subset in the order given. Most tests read state a previous +# one saved (GROUP_02, GROUP_05, …), so a subset that skips a producer will +# report `skip`, not a false failure. +if [[ -n "$ONLY_TESTS" ]]; then + read -r -a ALL_TESTS <<<"$ONLY_TESTS" +fi + +for t in "${ALL_TESTS[@]}"; do + if ! declare -F "$t" >/dev/null; then + fail_msg "unknown test: $t" + continue + fi + "$t" +done diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt index 0ec8f0f677..4d0c385bf5 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt @@ -33,6 +33,8 @@ import com.vitorpamplona.quartz.marmot.mls.framing.PublicMessage import com.vitorpamplona.quartz.marmot.mls.framing.WireFormat import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupState +import com.vitorpamplona.quartz.marmot.mls.messages.KeyPackageBundle +import com.vitorpamplona.quartz.marmot.mls.messages.Welcome import com.vitorpamplona.quartz.marmot.protocolCore.ConvergenceAdmission import com.vitorpamplona.quartz.marmot.protocolCore.ConvergenceResolution import com.vitorpamplona.quartz.marmot.protocolCore.ConvergenceStatus @@ -41,6 +43,7 @@ import com.vitorpamplona.quartz.marmot.protocolCore.MarmotConvergenceEngine import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.utils.Log import com.vitorpamplona.quartz.utils.sha256.sha256 import kotlinx.coroutines.sync.Mutex import kotlinx.coroutines.sync.withLock @@ -380,7 +383,7 @@ class MarmotInboundProcessor( hintNostrGroupId: HexKey? = null, ): WelcomeResult = try { - com.vitorpamplona.quartz.utils.Log + Log .d("MarmotDbg") { "MarmotInboundProcessor.processWelcome: hint=${hintNostrGroupId?.take(8)} eventId=${welcomeEvent.id.take(8)}…" } @@ -390,7 +393,7 @@ class MarmotInboundProcessor( if (keyPackageEventId == null) { return WelcomeResult.Error("WelcomeEvent missing KeyPackage event ID tag") } - com.vitorpamplona.quartz.utils.Log + Log .d("MarmotDbg") { "MarmotInboundProcessor.processWelcome: welcomeBytes=${welcomeBytes.size}B looking up KeyPackage by ref=${keyPackageEventId.take(8)}…" } @@ -404,23 +407,28 @@ class MarmotInboundProcessor( // log a noisy "No matching KeyPackageBundle" warning for what // is actually a benign replay. if (hintNostrGroupId != null && groupManager.isMember(hintNostrGroupId)) { - com.vitorpamplona.quartz.utils.Log + Log .d("MarmotDbg") { "MarmotInboundProcessor.processWelcome: already a member of group=${hintNostrGroupId.take(8)}… — treating Welcome as replay" } return WelcomeResult.AlreadyJoined(hintNostrGroupId) } - // Find the KeyPackageBundle that was consumed. + // Find the KeyPackageBundle the inviter encrypted to. // - // The Welcome's "e" tag carries the *Nostr event id* of the - // kind:30443 event (NOT the MLS reference hash), so we must - // resolve it via the eventId→slot index that - // [MarmotManager.generateKeyPackageEvent] populates after - // signing each KeyPackageEvent. - val bundle = keyPackageRotationManager.findBundleByEventId(keyPackageEventId) + // The authority is the MLS Welcome itself: each EncryptedGroupSecrets + // is addressed to a KeyPackageRef, and RFC 9420 says a joiner takes + // the first one it holds private keys for — which is exactly what + // OpenMLS does. The Welcome's "e" tag carries only the *Nostr event + // id* of the kind:30443 event, which is a routing hint an inviter can + // get wrong: MDK stamps the event id of the copy cached in its user + // directory, so a peer that rotated its published KeyPackage while + // MDK kept inviting from cache would be unjoinable if we trusted the + // tag alone. Try the refs first, then fall back to the tag. + val bundle = + findBundleForWelcome(welcomeBytes) ?: keyPackageRotationManager.findBundleByEventId(keyPackageEventId) if (bundle == null) { - com.vitorpamplona.quartz.utils.Log + Log .w("MarmotDbg") { "MarmotInboundProcessor.processWelcome: NO matching KeyPackageBundle for eventId=${keyPackageEventId.take(8)}… " + "— inviter referenced a KeyPackage we don't have private keys for. " + @@ -431,17 +439,19 @@ class MarmotInboundProcessor( "No matching KeyPackageBundle found for event $keyPackageEventId", ) } - com.vitorpamplona.quartz.utils.Log + Log .d("MarmotDbg") { "MarmotInboundProcessor.processWelcome: bundle found — invoking groupManager.processWelcome" } // Join the group; nostrGroupId is derived from the MLS GroupContext's // NostrGroupData extension. The h-tag hint (if any) is validated inside. val (_, nostrGroupId) = groupManager.processWelcome(welcomeBytes, bundle, hintNostrGroupId) - com.vitorpamplona.quartz.utils.Log + Log .d("MarmotDbg") { "MarmotInboundProcessor.processWelcome: joined group=${nostrGroupId.take(8)}…" } - // Mark the KeyPackage as consumed — triggers rotation - keyPackageRotationManager.markConsumedByEventId(keyPackageEventId) + // Mark the KeyPackage as consumed — triggers rotation. Keyed on the + // bundle we actually used, not the "e" tag, for the same reason the + // lookup above is. + keyPackageRotationManager.markConsumedByRef(bundle.keyPackage.reference()) // Seed convergence with the joined state, so the very first inbound // commit already has a retained parent to fall back to. @@ -452,11 +462,39 @@ class MarmotInboundProcessor( needsKeyPackageRotation = keyPackageRotationManager.needsRotation(), ) } catch (e: Exception) { - com.vitorpamplona.quartz.utils.Log + Log .w("MarmotDbg", "MarmotInboundProcessor.processWelcome: exception ${e.message}", e) WelcomeResult.Error("Failed to process Welcome: ${e.message}", e) } + /** + * Resolve the KeyPackageBundle a Welcome is addressed to, the way RFC 9420 + * §12.4.3.1 (and OpenMLS) does it: walk the Welcome's EncryptedGroupSecrets + * in order and take the first `new_member` KeyPackageRef we hold private + * keys for. + * + * Returns null when the Welcome does not parse or names no KeyPackage of + * ours — the caller then falls back to the Nostr "e" tag hint, and reports + * the failure if that misses too. + */ + private suspend fun findBundleForWelcome(welcomeBytes: ByteArray): KeyPackageBundle? { + val welcome = + try { + val mlsMessage = MlsMessage.decodeTls(TlsReader(welcomeBytes)) + require(mlsMessage.wireFormat == WireFormat.WELCOME) { "not a Welcome wire format" } + Welcome.decodeTls(TlsReader(mlsMessage.payload)) + } catch (e: Exception) { + Log.d("MarmotDbg") { + "MarmotInboundProcessor.findBundleForWelcome: welcome did not parse (${e.message}) — falling back to the e tag" + } + return null + } + for (secret in welcome.secrets) { + keyPackageRotationManager.findBundleByRef(secret.newMember)?.let { return it } + } + return null + } + /** * Mark a kind:445 event id as already processed so that a later relay * echo of the same event is treated as a [GroupEventResult.Duplicate] diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageRotationManager.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageRotationManager.kt index d7cc17e21b..fa7f433319 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageRotationManager.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/KeyPackageRotationManager.kt @@ -53,9 +53,12 @@ import kotlinx.coroutines.sync.withLock * - Handle periodic rotation for long-lived KeyPackages * * After a KeyPackage is consumed by a Welcome message: - * 1. The init_key is effectively spent — cannot be reused - * 2. A new KeyPackage MUST be published to the same d-tag slot - * 3. The old KeyPackageBundle MUST be discarded + * 1. A new KeyPackage MUST be published to the same d-tag slot + * 2. Whether the old bundle may be discarded depends on the LastResort marker: + * a plain KeyPackage is single-use and its private keys are dropped, while a + * KeyPackage carrying `0x000A` is reusable by contract and its bundle is + * kept (bounded) in [retainedBundles] so a later Welcome addressed to the + * same KeyPackage still joins. * * Per MIP-00 spec, each user should maintain up to [KeyPackageUtils.MAX_SLOTS] * KeyPackage slots, rotating consumed ones promptly. @@ -87,6 +90,24 @@ class KeyPackageRotationManager( */ private val eventIdToSlot = mutableMapOf() + /** + * Consumed KeyPackages we deliberately keep the private keys for, keyed by + * the Nostr event id (kind:30443) they were published as. + * + * A KeyPackage carrying the LastResort marker (`0x000A`) is not single-use: + * OpenMLS skips `delete_key_package` for one, so MDK — which marks every + * KeyPackage last-resort and caches the peer KeyPackage it resolved — will + * happily address a second, third and fourth Welcome to the same + * KeyPackage of ours. Dropping the bundle after the first Welcome made all + * of those unjoinable. + * + * Retention is bounded on both axes: at most [MAX_RETAINED_BUNDLES] entries + * (oldest evicted first), and never past the KeyPackage's own `not_after` + * lifetime. That is the whole forward-secrecy cost of the last-resort + * marker, and it is the cost we already accepted by publishing it. + */ + private val retainedBundles = mutableMapOf() + /** * Restore previously persisted bundles + rotation state from [store]. * Call once at startup before any other use of this manager. @@ -125,36 +146,41 @@ class KeyPackageRotationManager( return } - // v2 snapshot: if bundles were restored but the eventId - // index is empty (upgrade corner case, or a corrupted save), - // the bundles are effectively unreachable — wipe them too - // so a fresh publish happens. - if (decoded.bundles.isNotEmpty() && decoded.eventIdToSlot.isEmpty()) { + // Active bundles are reachable only through the eventId→slot + // index, so a snapshot that has bundles but no index (upgrade + // corner case, a corrupted save, or a rotation that never got as + // far as publishing) can't serve a Welcome. Drop just those + // bundles so `hasActiveKeyPackages()` is false and a fresh publish + // happens. Everything else in the snapshot stays: the retained + // last-resort bundles are keyed by event id directly and are still + // the only way to join an invite sent from a peer's cache, and the + // named slot d-tags have to stay stable or the republish lands in + // a new addressable slot and orphans the old one. + val unreachableActiveBundles = decoded.bundles.isNotEmpty() && decoded.eventIdToSlot.isEmpty() + if (unreachableActiveBundles) { Log.w("KeyPackageRotationManager") { - "Restored ${decoded.bundles.size} bundle(s) but no eventId→slot mapping — discarding, will republish" + "Restored ${decoded.bundles.size} bundle(s) but no eventId→slot mapping — dropping them, will republish" } - try { - store.delete() - } catch (e: Exception) { - Log.w("KeyPackageRotationManager", "Failed to delete stale snapshot", e) - } - return } mutex.withLock { activeBundles.clear() - activeBundles.putAll(decoded.bundles) + if (!unreachableActiveBundles) activeBundles.putAll(decoded.bundles) pendingRotations.clear() pendingRotations.addAll(decoded.pending) eventIdToSlot.clear() eventIdToSlot.putAll(decoded.eventIdToSlot) namedSlotDTags.clear() namedSlotDTags.putAll(decoded.namedSlotDTags) + retainedBundles.clear() + retainedBundles.putAll(decoded.retainedBundles) + if (unreachableActiveBundles) persistUnlocked() } Log.d("KeyPackageRotationManager") { "Restored ${decoded.bundles.size} active KeyPackage bundle(s), " + "${decoded.pending.size} pending rotation, ${decoded.eventIdToSlot.size} eventId mapping(s), " + - "${decoded.namedSlotDTags.size} named slot d-tag(s)" + "${decoded.namedSlotDTags.size} named slot d-tag(s), " + + "${decoded.retainedBundles.size} retained last-resort bundle(s)" } } catch (e: Exception) { Log.w("KeyPackageRotationManager", "Failed to decode persisted KeyPackages", e) @@ -173,6 +199,7 @@ class KeyPackageRotationManager( pendingRotations.clear() eventIdToSlot.clear() namedSlotDTags.clear() + retainedBundles.clear() val store = store ?: return@withLock try { store.delete() @@ -186,6 +213,7 @@ class KeyPackageRotationManager( val pending: Set, val eventIdToSlot: Map, val namedSlotDTags: Map, + val retainedBundles: Map, ) /** @@ -222,6 +250,15 @@ class KeyPackageRotationManager( writer.putOpaque2(name.encodeToByteArray()) writer.putOpaque2(dTag.encodeToByteArray()) } + // consumed-but-reusable last-resort bundles, by event id (added in v5) + writer.putUint32(retainedBundles.size.toLong()) + for ((eventId, bundle) in retainedBundles) { + writer.putOpaque2(eventId.encodeToByteArray()) + writer.putOpaque4(bundle.keyPackage.toTlsBytes()) + writer.putOpaque2(bundle.initPrivateKey) + writer.putOpaque2(bundle.encryptionPrivateKey) + writer.putOpaque2(bundle.signaturePrivateKey) + } return writer.toByteArray() } @@ -270,7 +307,19 @@ class KeyPackageRotationManager( namedSlots[name] = dTag } } - return Snapshot(bundles, pending, eventIdMap, namedSlots) + val retained = mutableMapOf() + if (reader.hasRemaining) { + val numRetained = reader.readUint32().toInt() + repeat(numRetained) { + val eventId = reader.readOpaque2().decodeToString() + val keyPackage = MlsKeyPackage.decodeTls(TlsReader(reader.readOpaque4())) + val initPriv = reader.readOpaque2() + val encPriv = reader.readOpaque2() + val sigPriv = reader.readOpaque2() + retained[eventId] = KeyPackageBundle(keyPackage, initPriv, encPriv, sigPriv) + } + } + return Snapshot(bundles, pending, eventIdMap, namedSlots, retained) } /** @@ -393,8 +442,11 @@ class KeyPackageRotationManager( */ suspend fun findBundleByRef(keyPackageRef: ByteArray): KeyPackageBundle? = mutex.withLock { + pruneExpiredRetainedUnlocked() activeBundles.values.find { bundle -> bundle.keyPackage.reference().contentEquals(keyPackageRef) + } ?: retainedBundles.values.find { bundle -> + bundle.keyPackage.reference().contentEquals(keyPackageRef) } } @@ -408,8 +460,12 @@ class KeyPackageRotationManager( */ suspend fun findBundleByEventId(eventId: HexKey): KeyPackageBundle? = mutex.withLock { - val slot = eventIdToSlot[eventId] ?: return@withLock null - activeBundles[slot] + pruneExpiredRetainedUnlocked() + val slot = eventIdToSlot[eventId] + if (slot != null) { + activeBundles[slot]?.let { return@withLock it } + } + retainedBundles[eventId] } /** @@ -434,11 +490,7 @@ class KeyPackageRotationManager( */ suspend fun markConsumed(dTagSlot: String) = mutex.withLock { - activeBundles.remove(dTagSlot) - // Drop any eventId mappings that pointed at this slot. - val staleEventIds = eventIdToSlot.entries.filter { it.value == dTagSlot }.map { it.key } - staleEventIds.forEach { eventIdToSlot.remove(it) } - pendingRotations.add(dTagSlot) + consumeSlotUnlocked(dTagSlot) persistUnlocked() } @@ -452,11 +504,7 @@ class KeyPackageRotationManager( bundle.keyPackage.reference().contentEquals(keyPackageRef) } if (entry != null) { - val consumedSlot = entry.key - activeBundles.remove(consumedSlot) - val staleEventIds = eventIdToSlot.entries.filter { it.value == consumedSlot }.map { it.key } - staleEventIds.forEach { eventIdToSlot.remove(it) } - pendingRotations.add(consumedSlot) + consumeSlotUnlocked(entry.key) persistUnlocked() } } @@ -468,13 +516,72 @@ class KeyPackageRotationManager( suspend fun markConsumedByEventId(eventId: HexKey) = mutex.withLock { val slot = eventIdToSlot[eventId] ?: return@withLock - activeBundles.remove(slot) - val staleEventIds = eventIdToSlot.entries.filter { it.value == slot }.map { it.key } - staleEventIds.forEach { eventIdToSlot.remove(it) } - pendingRotations.add(slot) + consumeSlotUnlocked(slot) persistUnlocked() } + /** + * Retire the bundle in [dTagSlot] and schedule the slot for a fresh + * publication. Caller must hold the mutex. + * + * A KeyPackage that advertises LastResort (`0x000A`) is reusable by + * contract — OpenMLS keeps its bundle on the Welcome path and MDK invites + * from a cached copy — so its private keys move to [retainedBundles], + * still reachable by every event id that published it. Anything else is + * single-use: the keys go, so a compromise later cannot reopen the Welcome + * that consumed them. + */ + private fun consumeSlotUnlocked(dTagSlot: String) { + val consumed = activeBundles.remove(dTagSlot) + val staleEventIds = eventIdToSlot.entries.filter { it.value == dTagSlot }.map { it.key } + if (consumed != null && consumed.keyPackage.isLastResort()) { + for (staleEventId in staleEventIds) { + // Re-insert so the most recently consumed entry sorts last and + // survives eviction the longest. + retainedBundles.remove(staleEventId) + retainedBundles[staleEventId] = consumed + } + pruneExpiredRetainedUnlocked() + while (retainedBundles.size > MAX_RETAINED_BUNDLES) { + retainedBundles.remove(retainedBundles.keys.first()) + } + } + staleEventIds.forEach { eventIdToSlot.remove(it) } + pendingRotations.add(dTagSlot) + } + + /** + * Drop retained bundles whose KeyPackage is past its own `not_after`. + * No peer may invite with an expired KeyPackage, so holding its private + * keys buys nothing. Caller must hold the mutex. + */ + private fun pruneExpiredRetainedUnlocked() { + val now = TimeUtils.now() + val expired = + retainedBundles.entries + .filter { (_, bundle) -> + val notAfter = + bundle.keyPackage.leafNode.lifetime + ?.notAfter ?: return@filter false + now > notAfter + }.map { it.key } + expired.forEach { retainedBundles.remove(it) } + } + + /** + * Install [bundle] as the active bundle for [dTagSlot], replacing whatever + * was there. Used by callers that mint a KeyPackage themselves (tests, and + * any flow that builds a bundle outside this manager) and still want the + * manager to own its lifecycle. + */ + suspend fun installBundle( + dTagSlot: String, + bundle: KeyPackageBundle, + ) = mutex.withLock { + activeBundles[dTagSlot] = bundle + persistUnlocked() + } + /** * Get the d-tag slots that need rotation (KeyPackage was consumed). */ @@ -577,13 +684,22 @@ class KeyPackageRotationManager( /** Proactive rotation after 7 days even if not consumed */ const val MAX_KEY_PACKAGE_AGE_SECONDS = 7L * 24 * 60 * 60 + /** + * How many consumed last-resort bundles to keep private keys for. + * Each one is a KeyPackage a peer may still be inviting us with from + * its own cache; the bound keeps a long-lived account from carrying + * every init key it ever published. + */ + const val MAX_RETAINED_BUNDLES = 8 + /** * On-disk snapshot format version for [KeyPackageBundleStore]. * v1: bundles + pendingRotations * v2: + eventIdToSlot map (so welcome lookup by Nostr event id works) * v3: + namedSlotDTags map (per MIP-00, d-tags are random 64-char hex, persisted here) * v4: capabilities fixed (0xF2EE, 0x000A extensions + 0x000A proposals; LastResort extension on KP) + * v5: + retainedBundles map (consumed last-resort KeyPackages stay reusable) */ - private const val SNAPSHOT_VERSION = 4 + private const val SNAPSHOT_VERSION = 5 } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/messages/MlsKeyPackage.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/messages/MlsKeyPackage.kt index 307097e45b..a2cd4a3422 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/messages/MlsKeyPackage.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/messages/MlsKeyPackage.kt @@ -20,9 +20,11 @@ */ package com.vitorpamplona.quartz.marmot.mls.messages +import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.codec.TlsSerializable import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter +import com.vitorpamplona.quartz.marmot.mls.components.AppDataDictionary import com.vitorpamplona.quartz.marmot.mls.crypto.MlsCryptoProvider import com.vitorpamplona.quartz.marmot.mls.tree.Extension import com.vitorpamplona.quartz.marmot.mls.tree.LeafNode @@ -74,6 +76,25 @@ data class MlsKeyPackage( return MlsCryptoProvider.refHash("MLS 1.0 KeyPackage Reference", encoded) } + /** + * True when this KeyPackage is marked last resort, in either carrier. + * + * The two profiles say it differently and a KeyPackage may be read under + * either: the MIP-era profile sets the MLS Extensions draft extension type + * `0x000A` directly on the KeyPackage, while the current profile carries a + * `last_resort_key_package` component inside the KeyPackage-level + * `app_data_dictionary` (`0x0006`). + * + * A last-resort KeyPackage is explicitly NOT single-use: OpenMLS skips + * `delete_key_package` for one, and MDK — which marks every KeyPackage it + * publishes last resort — invites from the copy cached in its directory. + * Anything that consumes a KeyPackage has to check this before discarding + * the bundle. + */ + fun isLastResort(): Boolean = + extensions.any { it.extensionType == LAST_RESORT_EXTENSION_TYPE } || + AppDataDictionary.fromExtensionsOrEmpty(extensions).contains(AppComponentIds.LAST_RESORT_KEY_PACKAGE) + /** * Encode the TBS (to-be-signed) portion for signature verification. */ @@ -118,6 +139,12 @@ data class MlsKeyPackage( } companion object { + /** + * `last_resort` KeyPackage extension (MLS Extensions draft). Marks a + * KeyPackage as reusable rather than single-use. + */ + const val LAST_RESORT_EXTENSION_TYPE = 0x000A + fun decodeTls(reader: TlsReader): MlsKeyPackage { val version = reader.readUint16() require(version == 1) { "Unsupported MLS version: $version" } diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/LastResortKeyPackageReuseTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/LastResortKeyPackageReuseTest.kt new file mode 100644 index 0000000000..b9feeeca5a --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mip00KeyPackages/LastResortKeyPackageReuseTest.kt @@ -0,0 +1,256 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip00KeyPackages + +import com.vitorpamplona.quartz.marmot.appComponents.CurrentProfileGroupFactory +import com.vitorpamplona.quartz.marmot.mls.tree.Extension +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import org.junit.Assert.assertEquals +import org.junit.Assert.assertFalse +import org.junit.Assert.assertNotNull +import org.junit.Assert.assertNull +import org.junit.Assert.assertTrue +import org.junit.Test + +/** + * A KeyPackage marked LastResort (MLS extension `0x000A`) is deliberately + * NOT single-use. OpenMLS says so in as many words — on the Welcome path it + * deletes the consumed bundle only `if !key_package_bundle.key_package().last_resort()`, + * and logs "KeyPackage has a last-resort marker, not deleting" otherwise — and + * MDK marks every KeyPackage it publishes as last resort, caches the peer + * KeyPackage it resolved in its user directory, and re-uses that same cached + * copy for every later invite of that peer. + * + * We publish the LastResort marker too (OpenMLS's own KeyPackage validation + * wants it). So we have to honour the contract we advertise: dropping the + * private keys the moment one Welcome consumed the KeyPackage makes every + * subsequent invite addressed to that same KeyPackage unjoinable, which is + * exactly what the MDK interop harness saw — one invite worked and the four + * that followed failed with "No matching KeyPackageBundle". + */ +class LastResortKeyPackageReuseTest { + private val identity = ByteArray(32) { 0x11 } + + @Test + fun aLastResortKeyPackageStaysUsableAfterItIsConsumed() = + runBlocking { + val manager = KeyPackageRotationManager() + val slot = manager.getOrCreateSlotDTag("primary") + val bundle = manager.generateKeyPackage(identity, slot) + assertTrue( + "generateKeyPackage must mark the KeyPackage last-resort — MDK requires it", + bundle.keyPackage.isLastResort(), + ) + + val eventId = "a".repeat(64) + manager.recordPublishedEventId(slot, eventId) + + manager.markConsumedByEventId(eventId) + + assertNotNull( + "a last-resort KeyPackage must still resolve by event id after it was consumed", + manager.findBundleByEventId(eventId), + ) + assertNotNull( + "a last-resort KeyPackage must still resolve by MLS KeyPackageRef after it was consumed", + manager.findBundleByRef(bundle.keyPackage.reference()), + ) + assertTrue( + "consuming it still schedules a fresh publication for the slot", + manager.needsRotation(), + ) + } + + @Test + fun aSingleUseKeyPackageIsStillDroppedWhenConsumed() = + runBlocking { + val manager = KeyPackageRotationManager() + val slot = manager.getOrCreateSlotDTag("primary") + val bundle = manager.generateKeyPackage(identity, slot) + // Strip the LastResort marker: without it MLS single-use applies + // and forward secrecy says the init key must not survive. + val singleUse = bundle.copy(keyPackage = bundle.keyPackage.copy(extensions = emptyList())) + manager.installBundle(slot, singleUse) + assertFalse(singleUse.keyPackage.isLastResort()) + + val eventId = "b".repeat(64) + manager.recordPublishedEventId(slot, eventId) + manager.markConsumedByEventId(eventId) + + assertNull( + "a KeyPackage without the last-resort marker is single-use and must be dropped", + manager.findBundleByEventId(eventId), + ) + assertNull(manager.findBundleByRef(singleUse.keyPackage.reference())) + } + + @Test + fun rotatingTheSlotKeepsTheConsumedKeyPackageReachable() = + runBlocking { + val manager = KeyPackageRotationManager() + val slot = manager.getOrCreateSlotDTag("primary") + val consumed = manager.generateKeyPackage(identity, slot) + val firstEventId = "c".repeat(64) + manager.recordPublishedEventId(slot, firstEventId) + manager.markConsumedByEventId(firstEventId) + + // MIP-00 rotation publishes a replacement into the same d-tag slot. + val rotated = manager.rotateSlot(identity, slot) + val secondEventId = "d".repeat(64) + manager.recordPublishedEventId(slot, secondEventId) + + assertEquals( + "the slot now serves the rotated KeyPackage", + rotated.keyPackage.reference().toList(), + manager + .findBundleByEventId(secondEventId)!! + .keyPackage + .reference() + .toList(), + ) + assertEquals( + "an invite that still references the consumed KeyPackage must keep working", + consumed.keyPackage.reference().toList(), + manager + .findBundleByEventId(firstEventId)!! + .keyPackage + .reference() + .toList(), + ) + } + + @Test + fun retainedKeyPackagesAreBoundedAndDropTheOldestFirst() = + runBlocking { + val manager = KeyPackageRotationManager() + val slot = manager.getOrCreateSlotDTag("primary") + val eventIds = mutableListOf() + repeat(KeyPackageRotationManager.MAX_RETAINED_BUNDLES + 2) { i -> + manager.generateKeyPackage(identity, slot) + val eventId = i.toString().padStart(64, '0') + eventIds.add(eventId) + manager.recordPublishedEventId(slot, eventId) + manager.markConsumedByEventId(eventId) + } + + assertNull( + "the oldest consumed KeyPackage must age out of the bounded retention window", + manager.findBundleByEventId(eventIds.first()), + ) + assertNotNull( + "the most recently consumed KeyPackage must still be reachable", + manager.findBundleByEventId(eventIds.last()), + ) + } + + @Test + fun retainedKeyPackagesSurviveAPersistenceRoundTrip() = + runBlocking { + val store = InMemoryKeyPackageBundleStore() + val manager = KeyPackageRotationManager(store) + val slot = manager.getOrCreateSlotDTag("primary") + val consumed = manager.generateKeyPackage(identity, slot) + val eventId = "e".repeat(64) + manager.recordPublishedEventId(slot, eventId) + manager.markConsumedByEventId(eventId) + manager.rotateSlot(identity, slot) + + val restored = KeyPackageRotationManager(store) + restored.restoreFromStore() + + assertEquals( + "a restart must not lose the private keys of a consumed last-resort KeyPackage", + consumed.keyPackage.reference().toList(), + restored + .findBundleByEventId(eventId)!! + .keyPackage + .reference() + .toList(), + ) + } + + /** + * The current profile does not use the MLS Extensions draft's `0x000A` + * extension type at all — it carries a `last_resort_key_package` component + * inside the KeyPackage-level `app_data_dictionary` (`0x0006`). Reading only + * the MIP-era carrier makes every KeyPackage we actually publish today look + * single-use, which is exactly the case the interop harness exercises. + */ + @Test + fun aCurrentProfileKeyPackageIsRecognisedAsLastResort() = + runBlocking { + val signer = NostrSignerInternal(KeyPair()) + val manager = KeyPackageRotationManager() + val slot = manager.getOrCreateSlotDTag("primary") + val bundle = manager.generateCurrentProfileKeyPackage(signer, slot) + assertTrue( + "the current profile marks last resort with a dictionary component, not extension 0x000A", + bundle.keyPackage.isLastResort(), + ) + + val eventId = "f".repeat(64) + manager.recordPublishedEventId(slot, eventId) + manager.markConsumedByRef(bundle.keyPackage.reference()) + + assertNotNull( + "a consumed current-profile KeyPackage must stay reusable", + manager.findBundleByRef(bundle.keyPackage.reference()), + ) + assertNotNull(manager.findBundleByEventId(eventId)) + } + + @Test + fun aCurrentProfileKeyPackageWithoutTheComponentIsSingleUse() = + runBlocking { + val signer = NostrSignerInternal(KeyPair()) + val bundle = CurrentProfileGroupFactory.createKeyPackage(signer, lastResort = false) + assertFalse(bundle.keyPackage.isLastResort()) + } + + @Test + fun theLastResortMarkerIsReadFromTheKeyPackageExtensions() { + val manager = KeyPackageRotationManager() + val bundle = runBlocking { manager.generateKeyPackage(identity) } + assertTrue(bundle.keyPackage.isLastResort()) + assertFalse(bundle.keyPackage.copy(extensions = emptyList()).isLastResort()) + assertFalse( + bundle.keyPackage + .copy(extensions = listOf(Extension(extensionType = 0x0001, extensionData = ByteArray(0)))) + .isLastResort(), + ) + } + + private class InMemoryKeyPackageBundleStore : KeyPackageBundleStore { + private var bytes: ByteArray? = null + + override suspend fun load(): ByteArray? = bytes + + override suspend fun save(data: ByteArray) { + bytes = data + } + + override suspend fun delete() { + bytes = null + } + } +} From fa5e14e605ca02d2bfe9129b4e7f5dc8a221aefe Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 08:50:12 +0000 Subject: [PATCH 27/79] fix(marmot): mint a rotated KeyPackage the way the first one was minted MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit MIP-00 replaces a KeyPackage as soon as a Welcome consumes it, so rotation is not a rare path — it runs right after the first group we are ever invited to. It went through the legacy generator, so from that moment on the only KeyPackage on relays for us was a MIP-era one with no account identity proof. A current-profile peer refuses that outright ("member KeyPackage identity or profile is invalid") and keeps inviting from whatever stale copy it still has cached, so an account went silently uninvitable one join after it was set up. Rotation and first publication now share one mint path, so a replacement cannot land on a different profile than the KeyPackage it replaces. Harness, two tests that were reporting our bugs as theirs and one that was reporting the reverse: - Test 16 asked `wn keys publish` to rotate. That verb is the idempotent retry of the durable stable-slot replacement — with nothing pending it republishes the same event id, so there is no rotation to observe. `wn keys rotate` is the one that mints. - Test 13 swallowed `wn keys check`'s output, so "no prior KP for A" read as a missing fixture when it was MDK refusing what we had published. The raw answer goes to the log now and the message says what actually happened. - Test 09 polled `reactions.by_emoji`, which belongs to the materialized timeline; `wn messages list` reads the raw app-event log, where a reaction is its own kind:7 entry with an "e" tag naming the anchor. The reaction had been arriving and being stored correctly the whole time. The MDK 0.9.20 interop harness is now green, 17 of 17, twice in a row from a clean state. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- cli/tests/marmot/tests-extras.sh | 45 ++++-- .../amethyst/commons/marmot/MarmotManager.kt | 44 +++-- .../MarmotKeyPackageRotationProfileTest.kt | 152 ++++++++++++++++++ quartz/plans/2026-09-08-marmot-spec-resync.md | 72 ++++++--- 4 files changed, 262 insertions(+), 51 deletions(-) create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotKeyPackageRotationProfileTest.kt diff --git a/cli/tests/marmot/tests-extras.sh b/cli/tests/marmot/tests-extras.sh index e9781fc830..54c962e20e 100644 --- a/cli/tests/marmot/tests-extras.sh +++ b/cli/tests/marmot/tests-extras.sh @@ -60,16 +60,26 @@ test_09_reply_react_unreact() { record_result "$id" fail "amy marmot message react failed"; return fi - # Round-trip: B should surface amy's kind:7 reaction. wn aggregates - # reactions onto the anchor message (`.reactions.by_emoji[]`), - # not as a standalone entry whose `.content` is the emoji — so polling - # `messages list` for an entry whose content equals "🍕" would never - # match, even when the reaction was successfully decrypted. Look for - # the emoji under any message's `reactions.by_emoji` keys instead. + # Round-trip: B should surface amy's kind:7 reaction. `wn messages list` + # reads the raw app-event log, where a reaction is its own kind:7 entry + # carrying the emoji and an "e" tag naming the anchor — the aggregated + # `reactions.by_emoji` summary belongs to the materialized timeline, which + # this command does not project. Match the raw shape, and accept an + # aggregated one too so a wn that starts summarising here still passes. local deadline=$(( $(date +%s) + 90 )) saw=0 while [[ $(date +%s) -lt $deadline ]]; do local payload payload=$(wn_b_json messages list "$mls_gid" --limit 50 2>/dev/null || true) + if [[ -n "$payload" ]] && \ + printf '%s' "$payload" \ + | jq_list messages \ + | jq -e --arg anchor "$msg_id" --arg emoji "🍕" \ + 'select(.kind == 7) + | select((.plaintext // .content // "") == $emoji) + | select([(.tags // [])[] | select(.[0] == "e") | .[1]] | index($anchor))' \ + >/dev/null 2>&1; then + saw=1; break + fi if [[ -n "$payload" ]] && \ printf '%s' "$payload" \ | jq_list messages | jq -e '(.reactions.by_emoji // {}) | keys[]?' \ @@ -200,11 +210,15 @@ test_13_keypackage_rotation() { banner "Test 13 — KeyPackage rotation" local id="13 keypackage rotation" - local before - before=$(wn_b --json keys check "$A_NPUB" 2>/dev/null \ - | jq -r '.result.key_package.key_package_event_id // .result.event_id // empty') + # `keys check` resolves A's KeyPackage the way an invite would, so an empty + # answer here is a real finding, not a missing fixture: it means MDK looked + # at what A published and refused it. Keep the raw JSON in the log. + local before raw + raw=$(wn_b --json keys check "$A_NPUB" 2>&1) + printf 'wn keys check %s -> %s\n' "$A_NPUB" "$raw" >>"$LOG_FILE" + before=$(printf '%s' "$raw" | jq -r '.result.key_package.key_package_event_id // .result.event_id // empty') if [[ -z "$before" ]]; then - record_result "$id" fail "no prior KP for A"; return + record_result "$id" fail "wn cannot resolve a KeyPackage for A"; return fi amy_json marmot key-package publish >/dev/null || { @@ -373,11 +387,12 @@ test_16_wn_keypackage_rotation() { record_result "$id" fail "no prior KP visible to amy for B"; return fi - # Ask B to rotate. `wn keys publish` writes a new kind:443 with a fresh - # created_at; the old event may or may not be evicted depending on the - # relay's retention policy, so both may coexist for a while. - wn_b keys publish >/dev/null 2>&1 || { - record_result "$id" fail "wn_b keys publish failed"; return + # Ask B to rotate. It has to be `keys rotate` ("force mint and publish a + # fresh replacement"), not `keys publish` — the latter is the idempotent + # retry of the durable stable-slot replacement, so with nothing pending it + # republishes the same event id and there is no rotation to observe. + wn_b keys rotate >/dev/null 2>&1 || { + record_result "$id" fail "wn_b keys rotate failed"; return } local deadline=$(( $(date +%s) + 60 )) after="" diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 94aab47d43..b1187d3abb 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -1126,8 +1126,22 @@ class MarmotManager( * — which is what kept us uninvitable. */ currentProfile: Boolean = true, + ): KeyPackageEvent = mintKeyPackageEventForSlot(keyPackageRotationManager.getOrCreateSlotDTag(slotName), relays, currentProfile) + + /** + * Mint, sign and index a KeyPackage for an already-resolved d-tag slot. + * + * Both the first publication and every rotation go through here, and that + * is the point: a replacement minted any other way can end up on a + * different protocol profile than the KeyPackage it replaces, which makes + * the account uninvitable to peers that require the current one. + */ + @OptIn(ExperimentalEncodingApi::class) + private suspend fun mintKeyPackageEventForSlot( + dTag: String, + relays: List, + currentProfile: Boolean, ): KeyPackageEvent { - val dTag = keyPackageRotationManager.getOrCreateSlotDTag(slotName) val identity = signer.pubKey.hexToByteArray() val bundle = if (currentProfile) { @@ -1184,26 +1198,22 @@ class MarmotManager( * Rotate consumed KeyPackage slots. * Returns list of KeyPackageEvents to publish. */ - @OptIn(ExperimentalEncodingApi::class) - suspend fun rotateConsumedKeyPackages(relays: List): List { + suspend fun rotateConsumedKeyPackages( + relays: List, + currentProfile: Boolean = true, + ): List { val pendingSlots = keyPackageRotationManager.pendingRotationSlots() if (pendingSlots.isEmpty()) return emptyList() - val identity = signer.pubKey.hexToByteArray() + // Same mint path as the first publication. MIP-00 makes us replace a + // KeyPackage the moment a Welcome consumes it, so this runs right + // after the first group we are ever invited to — minting the + // replacement any other way would silently downgrade the only + // KeyPackage on relays for us, and a peer that requires the current + // profile refuses it and can never add us again. return pendingSlots.map { slot -> - val bundle = keyPackageRotationManager.rotateSlot(identity, slot) - val keyPackageBase64 = Base64.encode(KeyPackageUtils.frameKeyPackage(bundle.keyPackage)) - val keyPackageRef = bundle.keyPackage.reference().toHexKey() - - val template = - KeyPackageEvent.build( - keyPackageBase64 = keyPackageBase64, - dTagSlot = slot, - keyPackageRef = keyPackageRef, - relays = relays, - ) - val signed = signer.sign(template) - keyPackageRotationManager.recordPublishedEventId(slot, signed.id) + val signed = mintKeyPackageEventForSlot(slot, relays, currentProfile) + keyPackageRotationManager.clearPendingRotation(slot) signed } } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotKeyPackageRotationProfileTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotKeyPackageRotationProfileTest.kt new file mode 100644 index 0000000000..68a0166fd7 --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotKeyPackageRotationProfileTest.kt @@ -0,0 +1,152 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageUtils +import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertTrue + +/** + * A rotation must publish the same kind of KeyPackage the first publication + * did. + * + * MIP-00 makes us replace a KeyPackage as soon as a Welcome consumes it, so + * rotation is not a rare path — it runs right after the first group we are + * ever invited to. Minting the replacement through the legacy generator meant + * that from that moment on the only KeyPackage on relays for us was a + * MIP-era one, without the account identity proof (`0x8009`) that a + * current-profile peer requires. MDK then refuses it outright + * (`member KeyPackage identity or profile is invalid`) and keeps inviting from + * whatever stale copy it still has cached, so the account silently becomes + * uninvitable one join after it was set up. + */ +class MarmotKeyPackageRotationProfileTest { + private val relay = + RelayUrlNormalizer.normalizeOrNull("wss://example.invalid/") + ?: error("test relay must normalize") + + @Test + fun aRotatedKeyPackageStaysOnTheCurrentProfile() = + runBlocking { + val signer = NostrSignerInternal(KeyPair()) + val manager = MarmotManager(signer, RotationStateStore(), RotationMessageStore(), RotationBundleStore()) + + val first = manager.generateKeyPackageEvent(listOf(relay)) + assertTrue(first.isCurrentProfile(), "the first publication is current-profile") + + // A Welcome consumed it, which is what schedules the replacement. + manager.keyPackageRotationManager.markConsumedByEventId(first.id) + assertTrue(manager.needsKeyPackageRotation()) + + val rotated = manager.rotateConsumedKeyPackages(listOf(relay)) + assertEquals(1, rotated.size, "one consumed slot means one replacement") + val replacement = rotated.single() + + assertTrue( + replacement.isCurrentProfile(), + "the replacement must carry the account identity proof too, or no current-profile " + + "peer can add us after our first join", + ) + assertEquals( + first.dTag(), + replacement.dTag(), + "the replacement lands in the same addressable slot", + ) + assertTrue( + replacement.id != first.id, + "the replacement must actually be a different KeyPackage", + ) + assertTrue( + KeyPackageUtils.isValid(replacement), + "and it must validate under the same MIP-00 rules a peer applies", + ) + assertTrue( + !manager.needsKeyPackageRotation(), + "the slot is no longer pending once its replacement is minted", + ) + } +} + +// Minimal in-memory stores, matching the ones the other MarmotManager tests +// use; the file-backed implementations live in the platform modules. + +private class RotationStateStore : MlsGroupStateStore { + private val states = mutableMapOf() + private val retained = mutableMapOf>() + + override suspend fun save( + nostrGroupId: String, + state: ByteArray, + ) { + states[nostrGroupId] = state + } + + override suspend fun load(nostrGroupId: String): ByteArray? = states[nostrGroupId] + + override suspend fun delete(nostrGroupId: String) { + states.remove(nostrGroupId) + retained.remove(nostrGroupId) + } + + override suspend fun listGroups(): List = states.keys.toList() + + override suspend fun saveRetainedEpochs( + nostrGroupId: String, + retainedSecrets: List, + ) { + retained[nostrGroupId] = retainedSecrets + } + + override suspend fun loadRetainedEpochs(nostrGroupId: String): List = retained[nostrGroupId] ?: emptyList() +} + +private class RotationMessageStore : MarmotMessageStore { + override suspend fun appendMessage( + nostrGroupId: String, + innerEventJson: String, + ) = Unit + + override suspend fun loadMessages(nostrGroupId: String): List = emptyList() + + override suspend fun delete(nostrGroupId: String) = Unit +} + +private class RotationBundleStore : KeyPackageBundleStore { + private var snapshot: ByteArray? = null + + override suspend fun save(snapshot: ByteArray) { + this.snapshot = snapshot + } + + override suspend fun load(): ByteArray? = snapshot + + override suspend fun delete() { + snapshot = null + } +} diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index 945b79efd7..648d3df42a 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -586,16 +586,15 @@ Writing the producer side immediately found two bugs the reader-side tests could ## Interop status (2026-09-09) -The MDK 0.9.20 harness runs end to end. It went **1 passed / 12 failed** to -**9 passed** over this pass, and the failures that remain are named below rather -than lumped together. +The MDK 0.9.20 harness runs end to end and is **green: 17 of 17**, twice in a +row from a clean state. It started this pass at **1 passed / 12 failed**. The +defects it found are below — every one of them a place where two +implementations have to agree on something one implementation alone never +disagrees with, which is why none of them was visible to any same-implementation +test we have. ### Defects the harness found in our own code -Each of these was invisible to every same-implementation test we have, because -each is a place where two implementations have to agree on something one -implementation alone never disagrees with. - 1. **A Commit rebuilt our own leaf from defaults.** The UpdatePath leaf replaces OUR leaf — same member, new key material — so its capabilities and extensions must carry over. `buildLeafNode` was called with neither, so the very first @@ -628,24 +627,59 @@ implementation alone never disagrees with. exists to prevent. `PublishOutcome.UNKNOWN` keeps the record and holds the group. -5. **The harness was parsing a wire format `wn` no longer speaks.** MDK 0.9.x +5. **We treated a last-resort KeyPackage as single-use.** We publish every + KeyPackage marked last resort and then dropped its private keys the moment + one Welcome consumed it. OpenMLS deletes a consumed bundle only + `if !key_package.last_resort()`; MDK marks all of its own last resort, caches + the peer KeyPackage it resolved, and invites from that cached copy every time + after. So the first invite addressed to us worked and every one after it died + on "No matching KeyPackageBundle". Two things had to be fixed together: the + last-resort check had to read the current profile's carrier (a + `last_resort_key_package` component inside the KeyPackage-level + `app_data_dictionary`, not the MIP-era `0x000A` extension type), and the + Welcome lookup had to trust the MLS KeyPackageRefs over the Nostr `e` tag, + which MDK stamps from its stale cached copy. + +6. **Every rotation downgraded us off the current profile.** MIP-00 replaces a + KeyPackage as soon as a Welcome consumes it, so rotation runs right after the + first group we are ever invited to — and it minted the replacement through + the legacy generator. From that moment the only KeyPackage on relays for us + had no account identity proof, MDK refused it outright, and the account was + silently uninvitable one join after setup. Rotation and first publication now + share one mint path. + +7. **The harness was parsing a wire format `wn` no longer speaks.** MDK 0.9.x returns `{"ok":true,"result":{"invites":[…]}}`; iterating `.result` walked that object's three VALUES, so every poll matched nothing and reported "never received invite" for welcomes that had arrived and been accepted. +### Harness defects (not ours) + +- **Runs inherited each other's state.** wnd wipes B's and C's data dirs on + start, but A's amy home and the relay's SQLite file survived, and the + leftovers are not inert — a KeyPackage from an earlier run is still on the + relay to be invited with, and old kind:445 events still arrive undecryptable. + Tests 03 and 08 failed on a dirty tree and passed on a clean one. Every run + now starts from empty stores; `--reuse-state` opts out and `--tests "…"` runs + a subset. +- **Test 16 asked `wn keys publish` to rotate.** That verb is the idempotent + retry of the durable stable-slot replacement, so with nothing pending it + republishes the same event id and there is no rotation to observe. + `wn keys rotate` is the one that mints. +- **Test 09 polled the wrong surface.** `wn messages list` reads the raw + app-event log, where a reaction is its own kind:7 entry with an `e` tag naming + the anchor; `reactions.by_emoji` is the materialized timeline's aggregate, + which that command does not project. The reaction had been arriving and being + stored correctly the whole time. + ### What is NOT done -- **Test 03 gets further but does not pass.** We join MDK's group and see its - name; the first kind-445 after the join is not delivered. Tests 05/12/14/15 - fail behind it with "A never received invite". -- **Tests 13 and 16 (KeyPackage rotation) fail.** `wn keys check` finds no prior - KeyPackage for A at that point in the run, and amy keeps seeing B's - pre-rotation KeyPackage. -- **Test 09 fails on the relay, not on us**: `disconnected before OK` from the - local nostr-rs-relay under the load of a full run. The durable ingest markers - added in this pass cut a large part of that load (a backdated gift wrap used - to be re-unwrapped on every sync, forever) but the test has not been re-run - since. +- **The local relay drops a publish occasionally.** One run in several, + `amy` gets `disconnected before OK` from nostr-rs-relay and reports the send + as unconfirmed even though the event is on the relay a moment later. It is a + harness-relay flake, not a protocol failure, and it costs whichever test is + running at the time. Worth making the CLI's publish confirmation tolerate a + reconnect rather than papering over it in the tests. - **Agent-text-stream is receive-only.** We decode the `0x8006` policy, derive per-stream record keys, open records and fold the transcript, and we advertise the `0xF2D1` receive capability. We do NOT advertise `send` (`0xF2D2`) or From 7cfa0758d929c48d6fd9e03c1250ca96ff7ddc8e Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 09:11:40 +0000 Subject: [PATCH 28/79] feat(marmot): sequence discipline for agent text stream publishing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Publishing preview records was blocked on one thing: the spec requires a publisher to never restart or reuse a `seq` for one key context — "including after reconnect, retry, process restart, or daemon resume" — and to stop publishing entirely when it cannot prove which value is next. That is a cryptographic requirement, not bookkeeping. `seq` is XORed into the ChaCha20-Poly1305 record nonce and the key is fixed for the stream, so a repeated `seq` repeats a (key, nonce) pair, which leaks the XOR of the two plaintexts and forfeits authentication for every record under that key. `AgentTextStreamPublisher` owns that discipline. Sequence values are reserved in the durable store before a record is handed out, in windows so a chatty stream is not a write per record — a crash then skips the unused tail of a window rather than replaying it, and a gap is something the transport binding already handles while a repeat is a nonce collision. `resume` returns null, rather than starting over at 1, both when nothing was retained and when the stream was finished or aborted; the caller falls back to the authoritative final kind:9 and a later preview needs a fresh stream id. A frame the group's `max_plaintext_frame_len` refuses is rejected before it claims a value, so a refused frame does not leave every receiver with a permanent gap where no record ever existed. Only an in-memory sequence store ships here. `send` (0xF2D2) and `fanout` (0xF2D4) stay unadvertised: there is no QUIC data plane behind them yet, and claiming a role we cannot serve is worse for a group than not claiming it. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- quartz/plans/2026-09-08-marmot-spec-resync.md | 23 +- .../AgentTextStreamPublisher.kt | 274 ++++++++++++++++++ .../AgentTextStreamPublisherTest.kt | 218 ++++++++++++++ 3 files changed, 508 insertions(+), 7 deletions(-) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamPublisher.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AgentTextStreamPublisherTest.kt diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index 648d3df42a..025cbbae47 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -680,13 +680,22 @@ test we have. harness-relay flake, not a protocol failure, and it costs whichever test is running at the time. Worth making the CLI's publish confirmation tolerate a reconnect rather than papering over it in the tests. -- **Agent-text-stream is receive-only.** We decode the `0x8006` policy, derive - per-stream record keys, open records and fold the transcript, and we advertise - the `0xF2D1` receive capability. We do NOT advertise `send` (`0xF2D2`) or - `fanout` (`0xF2D4`): publishing needs durable per-stream sequence state to - avoid reusing an AEAD nonce across a restart, and there is none. A group whose - policy requires `send` is refused at join rather than joined into a state - every peer would reject us from. +- **Agent-text-stream publishes records but has nowhere to send them.** We + decode the `0x8006` policy, derive per-stream record keys, open records and + fold the transcript, we advertise the `0xF2D1` receive capability, and + `AgentTextStreamPublisher` now seals records under the sequence discipline the + spec demands: values reserved durably ahead of use (in windows, so the hot + path is not a write per record), never restarted or replayed across a crash, + and a publisher that cannot prove which value is next refuses to publish at + all rather than colliding a ChaCha20-Poly1305 (key, nonce) pair. Only an + in-memory `AgentTextStreamSequenceStore` exists; a platform-backed one lands + with the transport that needs it. + + We still do NOT advertise `send` (`0xF2D2`) or `fanout` (`0xF2D4`), because + there is no data plane behind them yet and a role we cannot serve is worse for + the group than a role we do not claim. A group whose policy requires `send` is + refused at join rather than joined into a state every peer would reject us + from. - **The QUIC transport for agent text streams is not wired.** The record layer and the kind-1200 anchor are implemented; nothing yet opens a WebTransport session to a broker and feeds it records. diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamPublisher.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamPublisher.kt new file mode 100644 index 0000000000..9c31d7652f --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamPublisher.kt @@ -0,0 +1,274 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents.agentTextStream + +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlinx.coroutines.sync.Mutex +import kotlinx.coroutines.sync.withLock + +/** + * What a publisher must remember about one agent text stream to be allowed to + * keep publishing it. + * + * @param nextSeq the lowest sequence value that has NEVER been handed out. + * Reserved ahead of use, so it may sit above the last record actually sent. + * @param closed true once the stream was finished or aborted. A closed stream + * is closed for good — a later preview needs a fresh `stream_id`, which + * produces a new start payload and therefore a new key context. + */ +class AgentTextStreamSequenceState( + val nextSeq: Long, + val closed: Boolean, +) + +/** + * Durable sequence bookkeeping for agent text streams we publish. + * + * This is not caching. `features/agent-text-streams-quic.md` requires that a + * publisher never restart or reuse a `seq` for one + * [AgentTextStreamKeyContextV1] — "including after reconnect, retry, process + * restart, or daemon resume" — and that a publisher which cannot prove which + * value is next stop publishing. The reason is cryptographic rather than + * clerical: `seq` is XORed into the ChaCha20-Poly1305 record nonce, and the + * key is fixed for the stream, so a repeated `seq` repeats a (key, nonce) pair. + * That leaks the XOR of the two plaintexts and forfeits authentication for + * every record under that key. + * + * Keys are [AgentTextStreamKeyContextV1.encode] bytes, so a different stream + * id, epoch, sender or start event is a different entry with its own sequence. + * + * Implementations SHOULD encrypt at rest for the same reason the message store + * does: the key context contains the group id and the stream anchor. + */ +interface AgentTextStreamSequenceStore { + suspend fun load(keyContext: ByteArray): AgentTextStreamSequenceState? + + suspend fun save( + keyContext: ByteArray, + state: AgentTextStreamSequenceState, + ) +} + +/** Process-lifetime store. Suitable for tests and for a publisher that never restarts. */ +class InMemoryAgentTextStreamSequenceStore : AgentTextStreamSequenceStore { + private val states = mutableMapOf() + + override suspend fun load(keyContext: ByteArray): AgentTextStreamSequenceState? = states[keyContext.toHexKey()] + + override suspend fun save( + keyContext: ByteArray, + state: AgentTextStreamSequenceState, + ) { + states[keyContext.toHexKey()] = state + } +} + +/** + * Publishes the QUIC record side of one agent text stream. + * + * The publisher owns exactly one cryptographic session, the one the stream's + * kind-1200 start payload authorized, and it owns the sequence discipline that + * makes that session safe. Sequence values are reserved in the durable store + * BEFORE a record is handed out, in windows of [RESERVATION_WINDOW] so the hot + * path is not a write per record. A crash therefore skips the unused tail of a + * window rather than replaying it: a gap is something the transport binding + * already has to handle, and a repeat is a nonce collision. + * + * This produces records. It does not move them — the QUIC/WebTransport data + * plane that carries them to a broker is a separate layer, and until that + * exists a group's `send` role (`0xF2D2`) stays unadvertised, because + * advertising a role we cannot serve is worse for the group than not + * advertising it. + */ +class AgentTextStreamPublisher private constructor( + private val crypto: AgentTextStreamCrypto, + private val store: AgentTextStreamSequenceStore, + private val maxPlaintextFrameLen: Long, + val transcript: AgentTextStreamTranscriptV1, + private var nextSeq: Long, + private var reservedThrough: Long, +) { + private val mutex = Mutex() + private var closed = false + + private val keyContext = crypto.context.encode() + + /** The next sequence value this publisher would use. Exposed for diagnostics. */ + val peekNextSeq: Long get() = nextSeq + + val isClosed: Boolean get() = closed + + /** + * Seal [plaintextFrame] as the next record in the stream. + * + * The frame is validated against the group's `max_plaintext_frame_len` + * before a sequence value is claimed, so a frame the policy refuses does + * not burn one — a burnt value would show up at every receiver as a + * permanent gap in a stream that never had a record there. + */ + suspend fun publish( + recordType: Int, + plaintextFrame: ByteArray, + ): AgentTextStreamRecordV1 { + require(plaintextFrame.size <= maxPlaintextFrameLen) { + "agent text stream plaintext frame is larger than the group's limit" + } + return mutex.withLock { + check(!closed) { "agent text stream ${crypto.context.streamId.toHexKey()} is closed" } + val seq = claimNextSeqUnlocked() + val sealed = + crypto.seal( + AgentTextStreamRecordV1( + streamId = crypto.context.streamId, + seq = seq, + recordType = recordType, + frame = plaintextFrame, + ), + maxPlaintextFrameLen, + ) + transcript.append(seq, recordType, plaintextFrame) + sealed + } + } + + /** Publish a `FinalNotice` and close the stream. */ + suspend fun finish(notice: ByteArray = ByteArray(0)): AgentTextStreamRecordV1 { + val record = publish(AgentTextStreamRecordV1.TYPE_FINAL_NOTICE, notice) + close() + return record + } + + /** Publish an `Abort` and close the stream without producing durable text. */ + suspend fun abort(reason: ByteArray = ByteArray(0)): AgentTextStreamRecordV1 { + val record = publish(AgentTextStreamRecordV1.TYPE_ABORT, reason) + close() + return record + } + + /** + * Close the stream permanently. Idempotent, and safe to call without ever + * having published — a start payload whose preview never materialised is + * still a spent key context. + */ + suspend fun close() = + mutex.withLock { + if (closed) return@withLock + closed = true + store.save(keyContext, AgentTextStreamSequenceState(nextSeq = nextSeq, closed = true)) + } + + /** Caller holds [mutex]. Persists the window before returning a value from it. */ + private suspend fun claimNextSeqUnlocked(): Long { + if (nextSeq > reservedThrough) { + reservedThrough = nextSeq + RESERVATION_WINDOW - 1 + store.save(keyContext, AgentTextStreamSequenceState(nextSeq = reservedThrough + 1, closed = false)) + } + return nextSeq++ + } + + companion object { + /** + * How many sequence values one durable write reserves. Larger means + * fewer writes on a chatty stream and a longer gap after a crash; + * neither is a correctness question, only a cost one. + */ + const val RESERVATION_WINDOW = 64L + + /** The first sequence value of a stream, per the record spec. */ + const val FIRST_SEQ = 1L + + /** + * Start publishing a stream whose kind-1200 start payload was just + * emitted. + * + * Refuses when the store already knows this key context: that means + * either a live publisher or a spent one, and starting over would + * re-issue sequence values under a key that has already used them. + */ + suspend fun open( + crypto: AgentTextStreamCrypto, + store: AgentTextStreamSequenceStore, + maxPlaintextFrameLen: Long = AgentTextStreamQuicPolicyV1.MAX_PLAINTEXT_FRAME_LEN, + ): AgentTextStreamPublisher { + val keyContext = crypto.context.encode() + val existing = store.load(keyContext) + check(existing == null) { + "agent text stream ${crypto.context.streamId.toHexKey()} already has publisher state — " + + "a new preview needs a fresh stream id and start payload" + } + return AgentTextStreamPublisher( + crypto = crypto, + store = store, + maxPlaintextFrameLen = maxPlaintextFrameLen, + transcript = AgentTextStreamTranscriptV1.start(crypto.context.streamId, crypto.context.startEventId), + nextSeq = FIRST_SEQ, + reservedThrough = FIRST_SEQ - 1, + ) + } + + /** + * Resume publishing after a restart, or null when this publisher may + * not publish for this start payload any more. + * + * Null is the spec's required outcome in both cases it covers: nothing + * retained (we cannot prove which value is next) and a closed stream. + * The caller falls back to the authoritative final kind-9 message, and + * a later preview attempt starts a new stream. + * + * The transcript resumes empty because the records it would have + * covered were already sent; a resumed publisher's `stream-hash` is + * therefore only meaningful when [transcriptHash] and [chunkCount] are + * carried across the restart alongside the sequence state. + */ + suspend fun resume( + crypto: AgentTextStreamCrypto, + store: AgentTextStreamSequenceStore, + maxPlaintextFrameLen: Long = AgentTextStreamQuicPolicyV1.MAX_PLAINTEXT_FRAME_LEN, + transcriptHash: ByteArray? = null, + chunkCount: Long = 0, + ): AgentTextStreamPublisher? { + val keyContext = crypto.context.encode() + val state = store.load(keyContext) ?: return null + if (state.closed) return null + return AgentTextStreamPublisher( + crypto = crypto, + store = store, + maxPlaintextFrameLen = maxPlaintextFrameLen, + transcript = + if (transcriptHash != null) { + AgentTextStreamTranscriptV1.resume( + crypto.context.streamId, + crypto.context.startEventId, + transcriptHash, + chunkCount, + ) + } else { + AgentTextStreamTranscriptV1.start(crypto.context.streamId, crypto.context.startEventId) + }, + nextSeq = state.nextSeq, + // Everything the previous process reserved is spent as far as + // this one is concerned: it cannot tell which of those values + // actually reached the wire, so it uses none of them. + reservedThrough = state.nextSeq - 1, + ) + } + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AgentTextStreamPublisherTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AgentTextStreamPublisherTest.kt new file mode 100644 index 0000000000..cf87553b7d --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AgentTextStreamPublisherTest.kt @@ -0,0 +1,218 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamCrypto +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamKeyContextV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamPublisher +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRecordV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamSequenceState +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamSequenceStore +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.InMemoryAgentTextStreamSequenceStore +import kotlinx.coroutines.runBlocking +import org.junit.Assert.assertEquals +import org.junit.Assert.assertFalse +import org.junit.Assert.assertNull +import org.junit.Assert.assertThrows +import org.junit.Assert.assertTrue +import org.junit.Test + +/** + * `features/agent-text-streams-quic.md`: "A publisher MUST NOT restart `seq` + * or reuse any prior `seq` value for the same `AgentTextStreamKeyContextV1`, + * including after reconnect, retry, process restart, or daemon resume. A + * publisher MAY resume only when it has retained the next unused sequence + * value. If it cannot prove which sequence value is next, it MUST stop + * publishing preview records for that start payload." + * + * That is a durability requirement, not a bookkeeping one: the sequence number + * is XORed into the record nonce, so re-using one under the same key context + * reuses a ChaCha20-Poly1305 (key, nonce) pair — which leaks the XOR of two + * plaintexts and forfeits authentication for the whole stream. The publisher + * therefore reserves sequence values durably ahead of use and refuses to + * publish at all when it cannot prove which value is next. + */ +class AgentTextStreamPublisherTest { + private val groupId = ByteArray(32) { 0x51 } + private val streamId = ByteArray(32) { 0x52 } + private val senderId = ByteArray(32) { 0x53 } + private val startEventId = ByteArray(32) { 0x54 } + private val secret = ByteArray(32) { 0x55 } + + private fun context(epoch: Long = 7) = + AgentTextStreamKeyContextV1( + groupId = groupId, + streamId = streamId, + mlsEpoch = epoch, + senderId = senderId, + startEventId = startEventId, + ) + + private fun crypto(epoch: Long = 7) = AgentTextStreamCrypto(secret, context(epoch)) + + @Test + fun theFirstRecordIsSeqOneAndEachRecordAdvancesByOne() = + runBlocking { + val publisher = AgentTextStreamPublisher.open(crypto(), InMemoryAgentTextStreamSequenceStore()) + val seqs = + (1..5).map { + publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "chunk $it".encodeToByteArray()).seq + } + assertEquals(listOf(1L, 2L, 3L, 4L, 5L), seqs) + } + + @Test + fun aRestartNeverReplaysASequenceValueItAlreadyHandedOut() = + runBlocking { + val store = InMemoryAgentTextStreamSequenceStore() + val before = AgentTextStreamPublisher.open(crypto(), store) + val used = (1..3).map { before.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "a".encodeToByteArray()).seq } + + // Process dies here — no close, no flush. + val after = AgentTextStreamPublisher.resume(crypto(), store)!! + val next = after.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "b".encodeToByteArray()).seq + + assertTrue( + "a resumed publisher must hand out a sequence value strictly above every value used before the restart", + next > used.max(), + ) + } + + @Test + fun reservationIsDurableBeforeTheRecordIsHandedOut() = + runBlocking { + val store = InMemoryAgentTextStreamSequenceStore() + val publisher = AgentTextStreamPublisher.open(crypto(), store) + val record = publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "a".encodeToByteArray()) + + val persisted = store.load(context().encode()) + assertTrue( + "the watermark must already cover the record we handed out — persisting after the fact would " + + "let a crash re-issue the same nonce", + persisted!!.nextSeq > record.seq, + ) + } + + @Test + fun aPublisherThatCannotProveTheNextSequenceRefusesToPublish() = + runBlocking { + // Nothing retained for this key context: the spec says stop, not + // start over from 1. + assertNull( + "resume must fail rather than restart the sequence", + AgentTextStreamPublisher.resume(crypto(), InMemoryAgentTextStreamSequenceStore()), + ) + } + + @Test + fun aStreamThatEndedCannotBeResumed() { + runBlocking { + val store = InMemoryAgentTextStreamSequenceStore() + val publisher = AgentTextStreamPublisher.open(crypto(), store) + publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "a".encodeToByteArray()) + publisher.finish() + + assertNull( + "a finished stream is closed for good — a later preview needs a fresh stream id and start payload", + AgentTextStreamPublisher.resume(crypto(), store), + ) + assertThrows(IllegalStateException::class.java) { + runBlocking { publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "b".encodeToByteArray()) } + } + } + } + + @Test + fun anAbortClosesTheStreamToo() = + runBlocking { + val store = InMemoryAgentTextStreamSequenceStore() + val publisher = AgentTextStreamPublisher.open(crypto(), store) + val abort = publisher.abort() + assertEquals(AgentTextStreamRecordV1.TYPE_ABORT, abort.recordType) + assertNull(AgentTextStreamPublisher.resume(crypto(), store)) + } + + @Test + fun aDifferentStartEventIsADifferentStreamWithItsOwnSequence() = + runBlocking { + val store = InMemoryAgentTextStreamSequenceStore() + AgentTextStreamPublisher.open(crypto(epoch = 7), store).also { + it.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "a".encodeToByteArray()) + it.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "b".encodeToByteArray()) + } + + // A new epoch is a different key context, so a fresh sequence is + // correct here — the (key, nonce) pair cannot collide across it. + val other = AgentTextStreamPublisher.open(crypto(epoch = 8), store) + assertEquals(1L, other.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "a".encodeToByteArray()).seq) + } + + @Test + fun everyPublishedRecordIsSealedAndOpensBackToItsPlaintext() = + runBlocking { + val publisher = AgentTextStreamPublisher.open(crypto(), InMemoryAgentTextStreamSequenceStore()) + val plaintext = "hello from the agent".encodeToByteArray() + val record = publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, plaintext) + + assertFalse("the wire record must carry ciphertext", record.frame.contentEquals(plaintext)) + assertEquals(plaintext.size + AgentTextStreamRecordV1.AEAD_TAG_LEN, record.frame.size) + assertTrue(crypto().open(record).frame.contentEquals(plaintext)) + } + + @Test + fun theTranscriptTracksWhatWasPublishedSoTheFinalMessageCanCarryIt() = + runBlocking { + val publisher = AgentTextStreamPublisher.open(crypto(), InMemoryAgentTextStreamSequenceStore()) + publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "one ".encodeToByteArray()) + publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "two".encodeToByteArray()) + + assertEquals(2L, publisher.transcript.chunkCount) + assertEquals(32, publisher.transcript.hash.size) + } + + @Test + fun aFrameOverTheGroupsLimitIsRefusedBeforeItBurnsASequenceValue() { + runBlocking { + val store = InMemoryAgentTextStreamSequenceStore() + val publisher = AgentTextStreamPublisher.open(crypto(), store, maxPlaintextFrameLen = 8) + assertThrows(IllegalArgumentException::class.java) { + runBlocking { publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, ByteArray(9)) } + } + assertEquals( + "a refused frame must not consume a sequence value", + 1L, + publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, ByteArray(8)).seq, + ) + } + } + + @Test + fun theStoreRoundTripsItsState() = + runBlocking { + val store: AgentTextStreamSequenceStore = InMemoryAgentTextStreamSequenceStore() + val key = context().encode() + store.save(key, AgentTextStreamSequenceState(nextSeq = 42, closed = false)) + assertEquals(42L, store.load(key)!!.nextSeq) + assertFalse(store.load(key)!!.closed) + store.save(key, AgentTextStreamSequenceState(nextSeq = 42, closed = true)) + assertTrue(store.load(key)!!.closed) + } +} From 7e187e39dffe63d569493639956675686ef91b13 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 09:49:25 +0000 Subject: [PATCH 29/79] fix(relay): a hang-up before the OK is not the relay's answer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A relay that drops the socket between our EVENT frame and its OK has told us nothing: the event may be stored, or it may not. We recorded that as the relay's verdict and stopped waiting — even though the pool's own outbox still owed the relay the event and would have flushed it on reconnect. Nobody was listening by then, so the publish came back failed and the event landed on the relay a second later anyway. publishAndCollectResults now holds a transport failure as provisional for one retry: it drops the tentative verdict, ignores the echoes of the same drop, clears the backoff and dials, and takes the OK when the pool's flush earns it. Everything happens inside the caller's existing timeout, so no publish waits longer than it used to, and a relay that keeps hanging up is still reported as a transport failure rather than a success. transportRetries = 0 restores the old behaviour exactly. Found through the Marmot interop harness, which was losing a message every few runs to a loopback relay that was healthy a second later. The same race is every publish that meets a network change on mobile. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- quartz/plans/2026-09-08-marmot-spec-resync.md | 16 +- .../accessories/NostrClientPublishExt.kt | 88 ++++++++ .../PublishRetriesTransportFailureTest.kt | 198 ++++++++++++++++++ 3 files changed, 296 insertions(+), 6 deletions(-) create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/nip01Core/relay/PublishRetriesTransportFailureTest.kt diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index 025cbbae47..1dcbdf8f4f 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -653,6 +653,16 @@ test we have. that object's three VALUES, so every poll matched nothing and reported "never received invite" for welcomes that had arrived and been accepted. +8. **A hang-up ended the publish wait.** A relay that dropped the socket + between our EVENT frame and its OK gave no verdict — the event may be stored, + it may not — and we recorded that as the relay's answer and stopped waiting. + The pool's own outbox would have re-sent on reconnect; nobody was listening + by then. `publishAndCollectResults` now keeps a transport failure provisional + for one retry, dials past the backoff, and takes the OK when it arrives; it + stays inside the caller's existing timeout, so nothing waits longer than + before. This was one lost message per few harness runs, and on mobile it is + every publish that races a network change. + ### Harness defects (not ours) - **Runs inherited each other's state.** wnd wipes B's and C's data dirs on @@ -674,12 +684,6 @@ test we have. ### What is NOT done -- **The local relay drops a publish occasionally.** One run in several, - `amy` gets `disconnected before OK` from nostr-rs-relay and reports the send - as unconfirmed even though the event is on the relay a moment later. It is a - harness-relay flake, not a protocol failure, and it costs whichever test is - running at the time. Worth making the CLI's publish confirmation tolerate a - reconnect rather than papering over it in the tests. - **Agent-text-stream publishes records but has nowhere to send them.** We decode the `0x8006` policy, derive per-stream record keys, open records and fold the transcript, we advertise the `0xF2D1` receive capability, and diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/accessories/NostrClientPublishExt.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/accessories/NostrClientPublishExt.kt index fc725dbe84..b2f2085a90 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/accessories/NostrClientPublishExt.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/accessories/NostrClientPublishExt.kt @@ -69,6 +69,23 @@ class PublishResult( } } +/** + * How many times a relay that answered with a transport failure rather than an + * OK is re-sent to before the failure is reported. One retry covers the common + * case — a socket that dropped between our EVENT frame and the relay's OK — + * without turning a genuinely unreachable relay into a long stall, because the + * retries share the caller's existing publish timeout. + */ +const val DEFAULT_TRANSPORT_RETRIES = 1 + +/** + * Internal channel marker for "this relay is back up", so the wait loop — the + * one coroutine that owns the retry bookkeeping — can re-issue a send that a + * disconnected relay would have dropped. The NUL prefix keeps it out of reach + * of any real relay message, and it never surfaces in a [PublishResult]. + */ +private const val RECONNECTED = "\u0000publish-retry-reconnected" + @OptIn(DelicateCoroutinesApi::class) suspend fun INostrClient.publishAndConfirm( event: Event, @@ -107,6 +124,7 @@ suspend fun INostrClient.publishAndCollectResults( event: Event, relayList: Set, timeoutInSeconds: Long = 15, + transportRetries: Int = DEFAULT_TRANSPORT_RETRIES, ): Map { val resultChannel = Channel(UNLIMITED) val mark = TimeSource.Monotonic.markNow() @@ -132,6 +150,22 @@ suspend fun INostrClient.publishAndCollectResults( } } + /** + * A relay is only sendable once it is back up: publishing to a + * disconnected relay dials and drops the command, so a retry has to + * be re-issued from here rather than at the moment we noticed the + * hang-up. + */ + override fun onConnected( + relay: IRelayClient, + pingMillis: Int, + compressed: Boolean, + ) { + if (relay.url in relayList) { + resultChannel.trySend(DetailedResult(relay.url, false, RECONNECTED)) + } + } + override suspend fun onIncomingMessage( relay: IRelayClient, msgStr: String, @@ -165,18 +199,72 @@ suspend fun INostrClient.publishAndCollectResults( val result = async { val receivedResults = mutableMapOf() + // A relay that hung up or never connected gave no verdict on the + // event — it may have stored it, it may not. Re-send to that relay + // once (a Nostr event is idempotent under its own id, so the worst + // case is a duplicate the relay collapses) and keep waiting for the + // OK we were owed, instead of reporting a failed publish for a relay + // that is healthy a moment later. The retries live inside the + // caller's existing timeout, so nothing waits longer than before. + val retriesLeft = relayList.associateWith { transportRetries }.toMutableMap() // The withTimeout block will cancel the coroutine if the loop takes too long withTimeoutOrNull(timeoutInSeconds * 1000) { + val awaitingReconnect = mutableSetOf() while (receivedResults.size < relayList.size) { val result = resultChannel.receive() + if (result.message == RECONNECTED) { + // The pool flushes what it still owes a relay as part of + // coming back up, so there is nothing to re-send here — + // this only reopens the relay to a fresh verdict. + awaitingReconnect.remove(result.relay) + continue + } + + // One dropped socket can report itself more than once + // (the pool's disconnect and the relay client's both land + // here). While a relay is waiting to come back those are + // echoes of the drop we already answered, not new verdicts. + if (result.relay in awaitingReconnect) continue + val currentResult = receivedResults[result.relay] // do not override a successful result. if (currentResult == null || !currentResult.accepted) { receivedResults[result.relay] = PublishResult(result.success, result.message, result.elapsedMs) } + + val recorded = receivedResults[result.relay] + if (recorded != null && recorded.isTransportFailure && (retriesLeft[result.relay] ?: 0) > 0) { + retriesLeft[result.relay] = retriesLeft.getValue(result.relay) - 1 + // Drop the provisional verdict so the loop keeps waiting + // for this relay rather than treating the hang-up as its + // answer. If the retry also fails we record it again and + // report the transport failure as before. + receivedResults.remove(result.relay) + awaitingReconnect.add(result.relay) + Log.d("publishAndConfirm") { + "Retrying ${event.id} on ${result.relay} after ${recorded.message}" + } + // The event is still in the pool's outbox for this relay, + // so the dial is the whole job: the pool flushes what it + // owes the relay once the socket is back. Ignore the + // accumulated backoff — this is a user-visible publish + // waiting on it, not a background refresh. + resetBackoff() + reconnect(onlyIfChanged = false, ignoreRetryDelays = true) + } } } + // A relay whose last word was a transport failure and whose retry + // never came back inside the timeout still has to be reported: the + // caller promised a verdict for every listed relay, and "we retried" + // is not one. + for (relay in relayList) { + if (relay !in receivedResults && retriesLeft.getValue(relay) < transportRetries) { + receivedResults[relay] = PublishResult(false, PublishResult.DISCONNECTED) + } + } + receivedResults } diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/nip01Core/relay/PublishRetriesTransportFailureTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/nip01Core/relay/PublishRetriesTransportFailureTest.kt new file mode 100644 index 0000000000..b8d455e623 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/nip01Core/relay/PublishRetriesTransportFailureTest.kt @@ -0,0 +1,198 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.nip01Core.relay + +import com.vitorpamplona.geode.InProcessRelays +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.relay.client.NostrClient +import com.vitorpamplona.quartz.nip01Core.relay.client.accessories.PublishResult +import com.vitorpamplona.quartz.nip01Core.relay.client.accessories.publishAndCollectResults +import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl +import com.vitorpamplona.quartz.nip01Core.relay.sockets.WebSocket +import com.vitorpamplona.quartz.nip01Core.relay.sockets.WebSocketListener +import com.vitorpamplona.quartz.nip01Core.relay.sockets.WebsocketBuilder +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent +import kotlinx.coroutines.CoroutineScope +import kotlinx.coroutines.Dispatchers +import kotlinx.coroutines.SupervisorJob +import kotlinx.coroutines.cancel +import kotlinx.coroutines.runBlocking +import java.util.concurrent.atomic.AtomicInteger +import kotlin.test.AfterTest +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFalse +import kotlin.test.assertTrue + +/** + * A relay that hangs up between our EVENT frame and its OK told us nothing: + * the event may be stored, or it may not. We reported it as a failed publish + * and never tried again, which is how the Marmot interop harness kept losing + * a message a run to `disconnected before OK` on a loopback relay that was + * perfectly healthy a second later. + * + * A Nostr event is idempotent under its own id, so re-sending it after a + * transport failure costs a duplicate the relay collapses and buys the OK we + * were owed. The retry stays inside the caller's existing timeout, so nothing + * waits longer than it used to. + */ +class PublishRetriesTransportFailureTest { + private val hub = InProcessRelays() + private val scope = CoroutineScope(Dispatchers.Default + SupervisorJob()) + + @AfterTest + fun tearDown() { + scope.cancel() + hub.close() + } + + /** + * Wraps the in-process hub and hangs up the first [dropFirstConnections] + * sockets the moment they carry an `EVENT` frame — the relay took our + * bytes and vanished before answering, which is the case that has no + * verdict in it. + */ + private class HangsUpOnFirstEvent( + private val delegate: WebsocketBuilder, + private val dropFirstConnections: Int, + ) : WebsocketBuilder { + val eventFramesSeen = AtomicInteger(0) + private val socketsBuilt = AtomicInteger(0) + + override fun build( + url: NormalizedRelayUrl, + out: WebSocketListener, + ): WebSocket { + val index = socketsBuilt.getAndIncrement() + val inner = delegate.build(url, out) + val hangUp = index < dropFirstConnections + return object : WebSocket by inner { + override fun send(msg: String): Boolean { + if (!msg.startsWith("[\"EVENT\"")) return inner.send(msg) + eventFramesSeen.incrementAndGet() + if (!hangUp) return inner.send(msg) + // Take the bytes, answer nothing, drop the socket. + inner.disconnect() + out.onClosed(1006, "abnormal closure") + return true + } + } + } + } + + @Test + fun aDisconnectBeforeTheOkIsRetriedAndSucceeds() = + runBlocking { + val builder = HangsUpOnFirstEvent(hub, dropFirstConnections = 1) + val client = NostrClient(builder, scope) + val event = NostrSignerInternal(KeyPair()).sign(TextNoteEvent.build("survives a hang-up")) + + val results = + client.publishAndCollectResults( + event = event, + relayList = setOf(InProcessRelays.DEFAULT_URL), + timeoutInSeconds = 20, + ) + + assertEquals(1, results.size) + val result = results.values.single() + assertTrue( + result.accepted, + "the retry must land the event: the relay was healthy, it just hung up before the OK " + + "(got \"${result.message}\")", + ) + assertTrue( + builder.eventFramesSeen.get() >= 2, + "the event has to actually go out a second time, not just be re-reported", + ) + client.disconnect() + } + + @Test + fun aRelayThatKeepsHangingUpStillReportsTheTransportFailure() = + runBlocking { + // Every socket dies the same way, so no retry can help. The result + // must still name the transport failure rather than claim success + // or hide the relay. + val builder = HangsUpOnFirstEvent(hub, dropFirstConnections = Int.MAX_VALUE) + val client = NostrClient(builder, scope) + val event = NostrSignerInternal(KeyPair()).sign(TextNoteEvent.build("never lands")) + + val results = + client.publishAndCollectResults( + event = event, + relayList = setOf(InProcessRelays.DEFAULT_URL), + timeoutInSeconds = 8, + ) + + val result = results.getValue(InProcessRelays.DEFAULT_URL) + assertFalse(result.accepted) + assertTrue( + result.isTransportFailure, + "a hang-up is never a verdict from the relay (got \"${result.message}\")", + ) + client.disconnect() + } + + @Test + fun aHealthyPublishStillTakesOneRoundTrip() = + runBlocking { + val builder = HangsUpOnFirstEvent(hub, dropFirstConnections = 0) + val client = NostrClient(builder, scope) + val event = NostrSignerInternal(KeyPair()).sign(TextNoteEvent.build("no retry needed")) + + val results = + client.publishAndCollectResults( + event = event, + relayList = setOf(InProcessRelays.DEFAULT_URL), + timeoutInSeconds = 20, + ) + + assertTrue(results.values.single().accepted) + assertEquals( + 1, + builder.eventFramesSeen.get(), + "an OK on the first try must not be followed by a speculative resend", + ) + client.disconnect() + } + + @Test + fun retriesCanBeTurnedOff() = + runBlocking { + val builder = HangsUpOnFirstEvent(hub, dropFirstConnections = 1) + val client = NostrClient(builder, scope) + val event = NostrSignerInternal(KeyPair()).sign(TextNoteEvent.build("one shot only")) + + val results = + client.publishAndCollectResults( + event = event, + relayList = setOf(InProcessRelays.DEFAULT_URL), + timeoutInSeconds = 8, + transportRetries = 0, + ) + + assertEquals(PublishResult.DISCONNECTED, results.values.single().message) + assertEquals(1, builder.eventFramesSeen.get()) + client.disconnect() + } +} From 6d43d1941a4152bc8514bcde411ee959a9ff7773 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 11:29:21 +0000 Subject: [PATCH 30/79] feat(marmot): agent text stream previews over the repo's own QUIC stack MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The transport binding was the last piece missing from agent text streams, and it did not need a new QUIC implementation — `:quic` already had the whole hard part. What it needed was entering that stack at the right layer. `nestsClient` speaks WebTransport: HTTP/3, Extended CONNECT, QPACK, SETTINGS. Its `WebTransportSession` abstraction begins above all of that. Marmot's binding is raw QUIC — it negotiates its own ALPN (`marmot.quic_broker.v1` / `marmot.quic_stream.v1`) and writes frames straight onto QUIC streams, with no HTTP/3 anywhere in it. So this reuses everything below that line — connection, TLS 1.3, ALPN negotiation, stream multiplexing, loss recovery, the UDP socket — and none of the WebTransport wrapper. The codecs are in quartz next to the rest of agent-text-stream, because they are pure bytes and that is where the conformance risk lives: the control envelope with its literal 21-byte protocol string and its trailing-byte rejection, the uint32 frame codec with both the broker's blind cap and a policy-aware one, `quic://` candidate parsing down to ignoring everything after the authority and never sending an IP literal as SNI, and the first record's stream id pinning the rest. `:marmotQuic` is the connection layer, mirroring how `:nestsClient` sits on `:quic`. A publisher claims a room on a uni stream, a subscriber reads the fan-out on a bidi one, and an endpoint that does not take our ALPN is reported as unusable so the caller moves to the next candidate rather than waiting on records that never come. Verified against MDK's own `marmot-quic-broker`, which is the only way to know a wire format is right: our publisher and subscriber meet inside the reference broker, the records come back, open under the group-derived key and fold to the publisher's transcript hash, and the broker keeps rooms apart. Opt in with -DmarmotQuicBroker=host:port; the cases skip visibly without one, so an ordinary test run needs no broker. Still not wired at the app layer: nothing yet mints a kind-1200 start, picks a candidate, or renders a live preview, so `send` (0xF2D2) and `fanout` (0xF2D4) stay unadvertised. The direct path has no start-payload candidate format in v1 and is unimplemented. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .claude/CLAUDE.md | 9 +- marmotQuic/README.md | 72 ++++ marmotQuic/build.gradle.kts | 86 +++++ .../marmotquic/MarmotQuicStreamTransport.kt | 113 +++++++ .../QuicAgentTextStreamTransport.kt | 201 +++++++++++ .../marmotquic/MarmotQuicBrokerInteropTest.kt | 219 ++++++++++++ quartz/plans/2026-09-08-marmot-spec-resync.md | 36 +- .../transport/MarmotQuicBinding.kt | 318 ++++++++++++++++++ .../AgentTextStreamQuicTransportTest.kt | 249 ++++++++++++++ settings.gradle.kts | 1 + 10 files changed, 1295 insertions(+), 9 deletions(-) create mode 100644 marmotQuic/README.md create mode 100644 marmotQuic/build.gradle.kts create mode 100644 marmotQuic/src/commonMain/kotlin/com/vitorpamplona/marmotquic/MarmotQuicStreamTransport.kt create mode 100644 marmotQuic/src/jvmAndroid/kotlin/com/vitorpamplona/marmotquic/QuicAgentTextStreamTransport.kt create mode 100644 marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicBrokerInteropTest.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/transport/MarmotQuicBinding.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AgentTextStreamQuicTransportTest.kt diff --git a/.claude/CLAUDE.md b/.claude/CLAUDE.md index 732f94a837..7a15cb83cc 100644 --- a/.claude/CLAUDE.md +++ b/.claude/CLAUDE.md @@ -17,7 +17,9 @@ relay-server code; smaller modules are `benchmark` (Android macrobenchmarks), `relayBench` (head-to-head relay benchmark — boots geode, strfry and other relay binaries, replays a shared deterministic corpus, measures ingest/query/ NIP-77 sync; `./relayBench/run.sh`, see `relayBench/README.md`) and -`quic-interop` (QUIC interop runner, lives at `quic/interop`). `nestsClient` runs +`quic-interop` (QUIC interop runner, lives at `quic/interop`). `marmotQuic` is the Marmot raw-QUIC transport +binding for agent text stream previews (`transports/quic.md`) on top of +`:quic` — its own ALPNs and framing, not WebTransport. `nestsClient` runs the audio-room protocol on top of `:quic` for the NIP-53 audio-rooms feature. It implements both IETF `draft-ietf-moq-transport-17` (under `moq/`) and **moq-lite Lite-03** (kixelated's variant, under `moq/lite/`); the production listener AND speaker paths both run on moq-lite to interop with the @@ -78,6 +80,11 @@ amethyst/ KMP project that needs MoQ. Has no Android-framework dependencies. - `nestsClient/` = MoQ + audio-rooms client; takes `:quic` as transport, Quartz for crypto, `MediaCodec` / `AudioRecord` / `AudioTrack` for audio. +- `marmotQuic/` = Marmot's raw-QUIC binding for agent text stream previews. + Takes `:quic` for the connection and `:quartz` for the record/envelope + codecs. Not WebTransport — the binding has its own ALPNs and writes frames + straight onto QUIC streams, so it deliberately does not reuse + `nestsClient`'s `WebTransportSession`. - `amethyst/` & `desktopApp/` = Platform-native layouts and navigation - `cli/` = Thin assembly layer over `quartz/` + `commons/` (no new logic allowed). May also depend on `:geode` (for `amy serve`, which embeds the diff --git a/marmotQuic/README.md b/marmotQuic/README.md new file mode 100644 index 0000000000..333ba2e29a --- /dev/null +++ b/marmotQuic/README.md @@ -0,0 +1,72 @@ +# marmotQuic + +Marmot's raw QUIC transport binding for agent text stream previews +(`transports/quic.md`), on top of the repo's own pure-Kotlin `:quic` stack. + +## Why this is not `nestsClient`'s WebTransport + +Both features move bytes over `:quic`, but they enter it at different layers. + +`nestsClient` speaks **WebTransport**: HTTP/3, an Extended CONNECT handshake, a +`:protocol` pseudo-header, QPACK, SETTINGS negotiation. Its +`WebTransportSession` abstraction starts *above* all of that. + +Marmot's binding is **raw QUIC**. It negotiates its own ALPN — +`marmot.quic_broker.v1` for the broker path, `marmot.quic_stream.v1` for the +direct one — and writes frames straight onto QUIC streams. There is no HTTP/3 +in it at all, so `WebTransportSession` is the wrong shape. + +What both share is everything below that line, which is the hard part and is +already built: the QUIC connection, TLS 1.3, ALPN negotiation, stream +multiplexing, loss recovery and the UDP socket. + +## Shape + +- A **publisher** opens a client-initiated *unidirectional* stream, writes a + `publish` control envelope, then record frames. +- A **subscriber** opens a client-initiated *bidirectional* stream, writes a + `subscribe` control envelope, and reads the fan-out on the return direction. + +A broker rejects the wrong pairing. Both roles frame everything the same way: +`uint32 frame_len || bytes`, the control envelope first and then each +`AgentTextStreamRecordV1`. + +The codecs — control envelope, frame reader/writer with both caps, `quic://` +candidate parsing — live in `quartz` next to the rest of agent-text-stream, +because they are pure bytes and belong with the feature. This module is only +the connection. + +## The broker sees nothing + +Records are encrypted under a key derived from the group's MLS exporter. A +broker holds no key and learns only the routing pair +`(stream_id, start_event_id)` plus ciphertext. It is an untrusted forwarder, +and a candidate that points somewhere hostile still cannot forge a record. + +## Interop tests + +`MarmotQuicBrokerInteropTest` drives our publisher and subscriber through +MDK's own reference broker. Start it from an MDK checkout: + +```bash +cargo build --release --bin marmot-quic-broker +./target/release/marmot-quic-broker --bind 127.0.0.1:4450 --json +``` + +then: + +```bash +./gradlew :marmotQuic:jvmTest -DmarmotQuicBroker=127.0.0.1:4450 +``` + +Without the property the cases skip visibly, so an ordinary `./gradlew test` +never needs a broker on the machine. + +## Not done + +- Nothing in the app yet mints a kind-1200 start payload, chooses a broker + candidate, or renders a live preview — this is the transport, not the + feature wiring. +- The direct path (`marmot.quic_stream.v1`) is unimplemented. v1 defines no + start-payload candidate format for it, so it is only reachable with an + endpoint known out of band. diff --git a/marmotQuic/build.gradle.kts b/marmotQuic/build.gradle.kts new file mode 100644 index 0000000000..8039d51a9d --- /dev/null +++ b/marmotQuic/build.gradle.kts @@ -0,0 +1,86 @@ +import org.jetbrains.kotlin.gradle.dsl.JvmTarget + +plugins { + alias(libs.plugins.kotlinMultiplatform) + alias(libs.plugins.androidKotlinMultiplatformLibrary) +} + +kotlin { + jvm { + compilerOptions { + jvmTarget.set(JvmTarget.JVM_21) + } + } + + android { + namespace = "com.vitorpamplona.marmotquic" + compileSdk = + libs.versions.android.compileSdk + .get() + .toInt() + minSdk = + libs.versions.android.minSdk + .get() + .toInt() + + compilerOptions { + jvmTarget.set(JvmTarget.JVM_21) + } + + withHostTest {} + } + + sourceSets { + commonMain { + dependencies { + implementation(libs.kotlin.stdlib) + implementation(libs.kotlinx.coroutines.core) + api(project(":quartz")) + implementation(project(":quic")) + } + } + + commonTest { + dependencies { + implementation(libs.kotlin.test) + implementation(libs.kotlinx.coroutines.test) + } + } + + val jvmAndroid = + create("jvmAndroid") { + dependsOn(commonMain.get()) + } + + jvmMain { + dependsOn(jvmAndroid) + } + + androidMain { + dependsOn(jvmAndroid) + } + + jvmTest { + dependencies { + implementation(libs.kotlin.test) + implementation(libs.kotlinx.coroutines.test) + implementation(libs.secp256k1.kmp.jni.jvm) + } + } + + getByName("androidHostTest") { + dependencies { + implementation(libs.kotlin.test) + implementation(libs.kotlinx.coroutines.test) + implementation(libs.secp256k1.kmp.jni.jvm) + } + } + } +} + +// Forward the broker opt-in from the Gradle JVM to the test workers. Without +// this, `-DmarmotQuicBroker=...` never reaches the test and every interop +// case silently skips. Mirrors the same forwarding in `:nestsClient`. +tasks.withType().configureEach { + System.getProperty("marmotQuicBroker")?.let { systemProperty("marmotQuicBroker", it) } +} diff --git a/marmotQuic/src/commonMain/kotlin/com/vitorpamplona/marmotquic/MarmotQuicStreamTransport.kt b/marmotQuic/src/commonMain/kotlin/com/vitorpamplona/marmotquic/MarmotQuicStreamTransport.kt new file mode 100644 index 0000000000..2bd759570a --- /dev/null +++ b/marmotQuic/src/commonMain/kotlin/com/vitorpamplona/marmotquic/MarmotQuicStreamTransport.kt @@ -0,0 +1,113 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.marmotquic + +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRecordV1 +import kotlinx.coroutines.flow.Flow + +/** + * One delivery stream of an agent text stream preview, as + * `transports/quic.md` defines it: a QUIC stream carrying + * `uint32 frame_len || AgentTextStreamRecordV1` frames, preceded on the broker + * path by one control envelope framed the same way. + * + * The transport is deliberately narrow. It moves opaque ciphertext records and + * knows nothing about what they say: the record key comes from the group's MLS + * exporter, so a broker — and this layer — sees only the routing pair + * `(stream_id, start_event_id)` and bytes it cannot read. + */ +interface MarmotQuicStream { + /** Append one record to the stream. */ + suspend fun send(record: AgentTextStreamRecordV1) + + /** + * Records as they arrive, already de-framed and with the binding's + * stream-id pinning applied. Completes when the peer finishes the stream. + * + * Ordering, replay and gap handling belong to the caller — they need the + * transcript to decide, and this layer has no key to fold one with. + */ + fun incoming(): Flow + + /** Finish our write side cleanly; the stream ends when both sides have. */ + suspend fun finish() + + /** Tear the whole thing down, including the QUIC connection under it. */ + suspend fun close() +} + +/** + * Opens preview delivery streams against a `quic://` candidate. + * + * A candidate is advisory: one that fails to connect, fails TLS, or serves a + * different `(stream_id, start_event_id)` is unusable and the caller moves to + * the next. Implementations therefore surface a failure as + * [MarmotQuicException] rather than pretending a stream exists. + */ +interface MarmotQuicTransport { + /** + * Claim a broker room and stream records into it. + * + * The publisher path is a client-opened UNIDIRECTIONAL stream: it writes + * a `publish` control envelope and then the record frames. A broker + * rejects a publish envelope that arrives on a bidirectional stream. + */ + suspend fun publish( + candidate: String, + streamId: ByteArray, + startEventId: ByteArray, + ): MarmotQuicStream + + /** + * Join a broker room and read the fan-out. + * + * The subscriber path is a client-opened BIDIRECTIONAL stream: it writes a + * `subscribe` control envelope and reads record frames on the return + * direction. A broker rejects a subscribe envelope on a unidirectional + * stream, because it would have nowhere to answer. + */ + suspend fun subscribe( + candidate: String, + streamId: ByteArray, + startEventId: ByteArray, + ): MarmotQuicStream +} + +/** Why a candidate turned out to be unusable. */ +class MarmotQuicException( + val kind: Kind, + message: String, + cause: Throwable? = null, +) : RuntimeException(message, cause) { + enum class Kind { + /** The `quic://` candidate does not parse, or is over the 512-byte bound. */ + BadCandidate, + + /** UDP, QUIC or TLS never got as far as a connection. */ + HandshakeFailed, + + /** The endpoint does not speak our ALPN, so it is not a Marmot endpoint. */ + AlpnRejected, + + /** The peer closed the stream or the connection under us. */ + PeerClosed, + } +} diff --git a/marmotQuic/src/jvmAndroid/kotlin/com/vitorpamplona/marmotquic/QuicAgentTextStreamTransport.kt b/marmotQuic/src/jvmAndroid/kotlin/com/vitorpamplona/marmotquic/QuicAgentTextStreamTransport.kt new file mode 100644 index 0000000000..82caaad301 --- /dev/null +++ b/marmotQuic/src/jvmAndroid/kotlin/com/vitorpamplona/marmotquic/QuicAgentTextStreamTransport.kt @@ -0,0 +1,201 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.marmotquic + +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRecordV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.AgentTextStreamFraming +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.BrokerControlType +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicAlpn +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.QuicBrokerControlEnvelopeV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.QuicEndpointCandidate +import com.vitorpamplona.quic.connection.QuicConnection +import com.vitorpamplona.quic.connection.QuicConnectionConfig +import com.vitorpamplona.quic.connection.QuicConnectionDriver +import com.vitorpamplona.quic.stream.QuicStream +import com.vitorpamplona.quic.tls.CertificateValidator +import com.vitorpamplona.quic.transport.UdpSocket +import kotlinx.coroutines.CoroutineScope +import kotlinx.coroutines.Dispatchers +import kotlinx.coroutines.SupervisorJob +import kotlinx.coroutines.flow.Flow +import kotlinx.coroutines.flow.flow +import kotlinx.coroutines.withTimeoutOrNull + +/** + * `transports/quic.md` on top of the repo's own pure-Kotlin `:quic` stack. + * + * Marmot's binding is RAW QUIC, not WebTransport: it negotiates its own ALPN + * (`marmot.quic_broker.v1` / `marmot.quic_stream.v1`) and writes frames + * straight onto QUIC streams. So this deliberately does not reuse + * `nestsClient`'s `WebTransportSession` — that abstraction begins above HTTP/3 + * Extended CONNECT, which this binding has no part of. What it does reuse is + * everything under that: the QUIC connection, TLS 1.3, ALPN negotiation, + * stream multiplexing and the UDP socket. + * + * One stream per delivery: a publisher's uni stream or a subscriber's bidi + * stream owns its connection and closes it on [MarmotQuicStream.close]. That + * is the shape the binding describes — a room is a stream — and it keeps a + * failed candidate from leaving a connection behind. + */ +class QuicAgentTextStreamTransport( + private val parentScope: CoroutineScope = CoroutineScope(SupervisorJob() + Dispatchers.IO), + /** + * Preview endpoints and brokers are commonly self-signed, and the binding + * says so: a client MAY pin by DER or SHA-256 fingerprint through local + * configuration instead of the system trust store. That choice is the + * caller's, so the validator is required rather than defaulted — the type + * system should not let "forgot to decide" compile. + */ + private val certificateValidator: CertificateValidator, + private val handshakeTimeoutMillis: Long = 10_000L, + /** + * The group's `max_plaintext_frame_len`, when the caller knows it. A + * receiver that knows the policy must reject a frame above it; without one + * the broker's blind cap applies. + */ + private val maxPlaintextFrameLen: Long? = null, +) : MarmotQuicTransport { + override suspend fun publish( + candidate: String, + streamId: ByteArray, + startEventId: ByteArray, + ): MarmotQuicStream = open(candidate, streamId, startEventId, BrokerControlType.PUBLISH) + + override suspend fun subscribe( + candidate: String, + streamId: ByteArray, + startEventId: ByteArray, + ): MarmotQuicStream = open(candidate, streamId, startEventId, BrokerControlType.SUBSCRIBE) + + private suspend fun open( + candidate: String, + streamId: ByteArray, + startEventId: ByteArray, + role: BrokerControlType, + ): MarmotQuicStream { + val endpoint = + QuicEndpointCandidate.parse(candidate) + ?: throw MarmotQuicException(MarmotQuicException.Kind.BadCandidate, "unusable quic:// candidate") + + val socket = + try { + UdpSocket.connect(endpoint.host, endpoint.port) + } catch (t: Throwable) { + throw MarmotQuicException(MarmotQuicException.Kind.HandshakeFailed, "cannot reach the candidate", t) + } + + val connection = + QuicConnection( + // An IP literal is matched against an iPAddress SAN and never + // sent as SNI; `serverName` is only meaningful for a DNS name. + serverName = endpoint.serverNameIndication ?: endpoint.host, + config = QuicConnectionConfig(), + tlsCertificateValidator = certificateValidator, + alpnList = listOf(MarmotQuicAlpn.BROKER), + ) + val driver = QuicConnectionDriver(connection, socket, parentScope) + driver.start() + + try { + val completed = + withTimeoutOrNull(handshakeTimeoutMillis) { + connection.awaitHandshake() + true + } + if (completed == null || connection.status != QuicConnection.Status.CONNECTED) { + throw MarmotQuicException( + MarmotQuicException.Kind.HandshakeFailed, + "QUIC handshake did not complete (status=${connection.status})", + ) + } + // An endpoint that did not take our ALPN is not a Marmot endpoint, + // whatever else it may be. Fail here so the caller moves to the + // next candidate rather than waiting on records that never come. + val alpn = connection.tls.negotiatedAlpn + if (alpn == null || !alpn.contentEquals(MarmotQuicAlpn.BROKER)) { + throw MarmotQuicException( + MarmotQuicException.Kind.AlpnRejected, + "endpoint negotiated ${alpn?.decodeToString()} instead of ${MarmotQuicAlpn.BROKER.decodeToString()}", + ) + } + + // Stream direction IS the role: a publisher claims the room on a + // uni stream, a subscriber needs the return direction of a bidi + // one. A broker rejects the wrong pairing. + val stream = + when (role) { + BrokerControlType.PUBLISH -> connection.openUniStream() + BrokerControlType.SUBSCRIBE -> connection.openBidiStream() + } + + // The control envelope is the first frame, framed exactly like a + // record frame — length-prefixed the same way, so a broker reads + // both with one framer. + stream.send.enqueue(frameEnvelope(QuicBrokerControlEnvelopeV1(role, streamId, startEventId))) + driver.wakeup() + + return QuicStreamDelivery(stream, driver, maxPlaintextFrameLen) + } catch (t: Throwable) { + driver.close() + throw if (t is MarmotQuicException) t else MarmotQuicException(MarmotQuicException.Kind.PeerClosed, "${t.message}", t) + } + } + + private fun frameEnvelope(envelope: QuicBrokerControlEnvelopeV1): ByteArray { + val encoded = envelope.encode() + return byteArrayOf( + ((encoded.size shr 24) and 0xff).toByte(), + ((encoded.size shr 16) and 0xff).toByte(), + ((encoded.size shr 8) and 0xff).toByte(), + (encoded.size and 0xff).toByte(), + ) + encoded + } +} + +/** One QUIC stream carrying framed records, plus the connection it rides on. */ +private class QuicStreamDelivery( + private val stream: QuicStream, + private val driver: QuicConnectionDriver, + maxPlaintextFrameLen: Long?, +) : MarmotQuicStream { + private val reader = AgentTextStreamFraming.Reader(maxPlaintextFrameLen) + + override suspend fun send(record: AgentTextStreamRecordV1) { + stream.send.enqueue(AgentTextStreamFraming.frame(record)) + driver.wakeup() + } + + override fun incoming(): Flow = + flow { + stream.incoming.collect { chunk -> + for (record in reader.push(chunk)) emit(record) + } + } + + override suspend fun finish() { + stream.send.finish() + driver.wakeup() + } + + override suspend fun close() { + driver.close() + } +} diff --git a/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicBrokerInteropTest.kt b/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicBrokerInteropTest.kt new file mode 100644 index 0000000000..52daaf4d04 --- /dev/null +++ b/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicBrokerInteropTest.kt @@ -0,0 +1,219 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.marmotquic + +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamCrypto +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamKeyContextV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamPublisher +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRecordV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamTranscriptV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.InMemoryAgentTextStreamSequenceStore +import com.vitorpamplona.quic.tls.PermissiveCertificateValidator +import kotlinx.coroutines.CoroutineScope +import kotlinx.coroutines.Dispatchers +import kotlinx.coroutines.SupervisorJob +import kotlinx.coroutines.async +import kotlinx.coroutines.cancel +import kotlinx.coroutines.delay +import kotlinx.coroutines.flow.take +import kotlinx.coroutines.flow.toList +import kotlinx.coroutines.runBlocking +import kotlinx.coroutines.withTimeout +import org.junit.Assume +import kotlin.random.Random +import kotlin.test.AfterTest +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertTrue + +/** + * Drives our `transports/quic.md` client against MDK's own + * `marmot-quic-broker`, the reference implementation of the other side. + * + * This is the only way to know the binding is right. Everything it exercises + * is a place where two implementations have to agree byte for byte and where + * our own tests would happily agree with themselves: the ALPN string, the + * control envelope's layout and its literal protocol name, which stream + * direction each role uses, and the 4-byte frame prefix. The records + * themselves stay opaque to the broker — it fans out ciphertext and never + * holds a key. + * + * Opt in with `-DmarmotQuicBroker=127.0.0.1:4450` after starting: + * + * ``` + * cargo build --release --bin marmot-quic-broker # in the MDK checkout + * ./target/release/marmot-quic-broker --bind 127.0.0.1:4450 --json + * ``` + * + * Without the property the test skips, so a normal `./gradlew test` never + * needs a broker on the machine. + */ +class MarmotQuicBrokerInteropTest { + private val scope = CoroutineScope(SupervisorJob() + Dispatchers.IO) + + private val brokerAuthority: String? = System.getProperty("marmotQuicBroker") + + /** + * Report "no broker configured" as a JUnit skip rather than a silent pass, + * so a run that was meant to exercise the broker cannot look green because + * the property never reached the worker. + */ + private fun requireBroker(): String { + Assume.assumeTrue( + "set -DmarmotQuicBroker=host:port and start MDK's marmot-quic-broker to run the interop cases", + brokerAuthority != null, + ) + return brokerAuthority!! + } + + private val candidate get() = "quic://$brokerAuthority" + + @AfterTest + fun tearDown() { + scope.cancel() + } + + private fun transport() = + QuicAgentTextStreamTransport( + parentScope = scope, + // The broker generates a self-signed certificate on startup. The + // binding expects exactly that ("preview endpoints and brokers may + // be self-signed") and says a client MAY pin it locally; a test + // against a throwaway broker accepts it outright. + certificateValidator = PermissiveCertificateValidator(), + ) + + private fun keyContext( + streamId: ByteArray, + startEventId: ByteArray, + ) = AgentTextStreamKeyContextV1( + groupId = ByteArray(32) { 0x01 }, + streamId = streamId, + mlsEpoch = 3, + senderId = ByteArray(32) { 0x02 }, + startEventId = startEventId, + ) + + @Test + fun ourPublisherAndSubscriberMeetInsideTheReferenceBroker() { + requireBroker() + runBlocking { + val streamId = Random.nextBytes(32) + val startEventId = Random.nextBytes(32) + val secret = ByteArray(32) { 0x77 } + val crypto = AgentTextStreamCrypto(secret, keyContext(streamId, startEventId)) + + val transport = transport() + // Subscribe first: the broker's replay window is 0 by default, so + // a subscriber that arrives after the records were pushed sees + // nothing — which is the binding working as specified, not a bug. + val subscriber = transport.subscribe(candidate, streamId, startEventId) + val received = async { withTimeout(30_000) { subscriber.incoming().take(3).toList() } } + delay(500) + + val publisher = transport.publish(candidate, streamId, startEventId) + val sender = AgentTextStreamPublisher.open(crypto, InMemoryAgentTextStreamSequenceStore()) + val plaintexts = listOf("the ", "quick ", "brown fox") + for (text in plaintexts) { + publisher.send(sender.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, text.encodeToByteArray())) + } + publisher.finish() + + val records = received.await() + + assertEquals(listOf(1L, 2L, 3L), records.map { it.seq }) + assertEquals( + plaintexts.joinToString(""), + records.joinToString("") { crypto.open(it).frame.decodeToString() }, + "the broker relays ciphertext and cannot read a byte of it, so what comes back must open " + + "under the same group-derived key", + ) + + // A receiver that folded every record must agree with the + // publisher's transcript, which is what the final kind:9 carries. + val fold = AgentTextStreamTranscriptV1.start(streamId, startEventId) + records.forEach { fold.append(crypto.open(it)) } + assertContentEquals(sender.transcript.hash, fold.hash) + assertEquals(sender.transcript.chunkCount, fold.chunkCount) + + publisher.close() + subscriber.close() + } + } + + @Test + fun theBrokerKeepsRoomsApart() { + requireBroker() + runBlocking { + val startEventId = Random.nextBytes(32) + val mine = Random.nextBytes(32) + val theirs = Random.nextBytes(32) + val transport = transport() + + val subscriber = transport.subscribe(candidate, mine, startEventId) + val received = async { withTimeout(15_000) { subscriber.incoming().take(1).toList() } } + delay(500) + + // Same start event, different stream id: a different room. "A + // broker MUST NOT merge or cross-deliver records between different + // rooms." + val wrongRoom = transport.publish(candidate, theirs, startEventId) + val strayCrypto = AgentTextStreamCrypto(ByteArray(32) { 0x66 }, keyContext(theirs, startEventId)) + val stray = AgentTextStreamPublisher.open(strayCrypto, InMemoryAgentTextStreamSequenceStore()) + wrongRoom.send(stray.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "not for you".encodeToByteArray())) + wrongRoom.finish() + + // Now the right room, so the test finishes on a positive signal + // rather than a timeout we cannot distinguish from a hang. + val rightRoom = transport.publish(candidate, mine, startEventId) + val mineCrypto = AgentTextStreamCrypto(ByteArray(32) { 0x77 }, keyContext(mine, startEventId)) + val ours = AgentTextStreamPublisher.open(mineCrypto, InMemoryAgentTextStreamSequenceStore()) + rightRoom.send(ours.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "for you".encodeToByteArray())) + rightRoom.finish() + + val records = received.await() + assertEquals(1, records.size) + assertContentEquals(mine, records.single().streamId) + assertEquals("for you", mineCrypto.open(records.single()).frame.decodeToString()) + + wrongRoom.close() + rightRoom.close() + subscriber.close() + } + } + + @Test + fun theBrokerRefusesAnEndpointThatDoesNotSpeakOurAlpn() { + assertTrue(requireBroker().isNotEmpty()) + // Sanity: a candidate that parses but points nowhere must fail as a + // handshake, not hang or throw something unclassified. + runBlocking { + val failure = + runCatching { + withTimeout(30_000) { + transport().subscribe("quic://127.0.0.1:1", Random.nextBytes(32), Random.nextBytes(32)) + } + }.exceptionOrNull() + assertTrue(failure is MarmotQuicException, "expected a MarmotQuicException, got $failure") + } + } +} diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index 1dcbdf8f4f..fad088e64c 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -695,11 +695,31 @@ test we have. in-memory `AgentTextStreamSequenceStore` exists; a platform-backed one lands with the transport that needs it. - We still do NOT advertise `send` (`0xF2D2`) or `fanout` (`0xF2D4`), because - there is no data plane behind them yet and a role we cannot serve is worse for - the group than a role we do not claim. A group whose policy requires `send` is - refused at join rather than joined into a state every peer would reject us - from. -- **The QUIC transport for agent text streams is not wired.** The record layer - and the kind-1200 anchor are implemented; nothing yet opens a WebTransport - session to a broker and feeds it records. + We still do NOT advertise `send` (`0xF2D2`) or `fanout` (`0xF2D4`). Not for + want of a transport any more — see below — but because nothing in the app yet + originates a stream, and a role we do not serve is worse for the group than a + role we do not claim. A group whose policy requires `send` is refused at join + rather than joined into a state every peer would reject us from. + +- **The QUIC transport binding is implemented and verified against MDK's + broker.** `transports/quic.md` is a RAW QUIC binding — its own ALPNs + (`marmot.quic_broker.v1` / `marmot.quic_stream.v1`), frames written straight + onto QUIC streams — so it does not go through `nestsClient`'s + `WebTransportSession`, which begins above HTTP/3 Extended CONNECT. It sits + directly on `:quic`, which already had everything under that line: the + connection, TLS 1.3, ALPN negotiation, stream multiplexing, the UDP socket. + + The pure protocol layer (control envelope, `uint32` frame codec with both + caps, `quic://` candidate parsing, stream-id pinning) is in `quartz`; the + connection layer is the new `:marmotQuic` module, which mirrors how + `:nestsClient` sits on `:quic`. `MarmotQuicBrokerInteropTest` drives our + publisher and subscriber through MDK's own `marmot-quic-broker` and checks + that the records come back, open under the group-derived key, and fold to the + publisher's transcript hash — plus that the broker keeps rooms apart. Opt in + with `-DmarmotQuicBroker=host:port`; it skips visibly without one. + + What is left is the application wiring: nothing yet mints a kind-1200 start, + picks a broker candidate, or renders a live preview. The direct path + (`marmot.quic_stream.v1`) is also unimplemented — v1 has no start-payload + candidate format for it, so it is only usable with an out-of-band endpoint. + diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/transport/MarmotQuicBinding.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/transport/MarmotQuicBinding.kt new file mode 100644 index 0000000000..6fd5103b69 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/transport/MarmotQuicBinding.kt @@ -0,0 +1,318 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport + +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamQuicPolicyV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRecordV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.QuicVarInt +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.addLengthPrefixed + +/** + * ALPN identifiers for `transports/quic.md`. + * + * QUIC requires ALPN on every connection, and the binding gives each delivery + * mode its own so the two can diverge without a version negotiation of their + * own: a peer that only speaks one simply fails the handshake. + * + * This is a raw QUIC binding, not WebTransport — there is no HTTP/3 layer, no + * Extended CONNECT and no `:protocol` pseudo-header. The records ride directly + * on QUIC streams. + */ +object MarmotQuicAlpn { + /** Broker-relayed delivery — the v1 discovery mechanism. */ + val BROKER = "marmot.quic_broker.v1".encodeToByteArray() + + /** Direct point-to-point delivery, where the sender already knows the receiver's endpoint. */ + val DIRECT = "marmot.quic_stream.v1".encodeToByteArray() +} + +/** Which side of a broker room a control envelope claims. */ +enum class BrokerControlType( + val code: Int, +) { + /** Claims the room and streams records into it. Client-opened unidirectional stream. */ + PUBLISH(1), + + /** Joins the room and reads the fan-out. Client-opened bidirectional stream. */ + SUBSCRIBE(2), + ; + + companion object { + fun fromCode(code: Int): BrokerControlType? = entries.firstOrNull { it.code == code } + } +} + +/** + * The first frame on a broker stream, framed exactly like a record frame. + * + * ``` + * struct { + * opaque marmot_broker<1..255>; // ASCII "marmot.quic_broker.v1" + * BrokerControlType control_type; // uint8 + * opaque stream_id<1..64>; + * opaque start_event_id<1..64>; + * } QuicBrokerControlEnvelopeV1; + * ``` + * + * `marmot_broker` is length-prefixed rather than a fixed array on purpose: a + * future protocol string of a different length still decodes for an old + * reader, which can then reject it cleanly instead of misparsing the fields + * behind it. + * + * The broker is an untrusted forwarder. Everything it learns is in here — the + * routing pair — plus ciphertext; it cannot read, author or alter preview + * plaintext. + */ +class QuicBrokerControlEnvelopeV1( + val controlType: BrokerControlType, + val streamId: ByteArray, + val startEventId: ByteArray, +) { + init { + require(streamId.size in 1..MAX_ID_LEN) { "broker control stream_id must be 1..$MAX_ID_LEN bytes" } + require(startEventId.size in 1..MAX_ID_LEN) { "broker control start_event_id must be 1..$MAX_ID_LEN bytes" } + } + + fun encode(): ByteArray { + val out = ArrayList() + out.addLengthPrefixed(PROTOCOL) + out.add(controlType.code.toByte()) + out.addLengthPrefixed(streamId) + out.addLengthPrefixed(startEventId) + return out.toByteArray() + } + + companion object { + /** The exact 21 ASCII bytes a broker matches on. */ + val PROTOCOL = "marmot.quic_broker.v1".encodeToByteArray() + + const val MAX_ID_LEN = 64 + + fun decode(bytes: ByteArray): QuicBrokerControlEnvelopeV1 { + var at = 0 + + val protocolLen = QuicVarInt.decode(bytes, at) + at += protocolLen.length + require(at + protocolLen.value <= bytes.size) { "broker control envelope is truncated while reading marmot_broker" } + val protocol = bytes.copyOfRange(at, at + protocolLen.value.toInt()) + at += protocolLen.value.toInt() + require(protocol.contentEquals(PROTOCOL)) { + "broker control envelope names another protocol: ${protocol.decodeToString()}" + } + + require(at < bytes.size) { "broker control envelope is truncated while reading control_type" } + val controlType = + BrokerControlType.fromCode(bytes[at].toInt() and 0xff) + ?: throw IllegalArgumentException("unknown broker control_type: ${bytes[at].toInt() and 0xff}") + at += 1 + + val streamIdLen = QuicVarInt.decode(bytes, at) + at += streamIdLen.length + require(at + streamIdLen.value <= bytes.size) { "broker control envelope is truncated while reading stream_id" } + val streamId = bytes.copyOfRange(at, at + streamIdLen.value.toInt()) + at += streamIdLen.value.toInt() + + val startEventIdLen = QuicVarInt.decode(bytes, at) + at += startEventIdLen.length + require(at + startEventIdLen.value <= bytes.size) { + "broker control envelope is truncated while reading start_event_id" + } + val startEventId = bytes.copyOfRange(at, at + startEventIdLen.value.toInt()) + at += startEventIdLen.value.toInt() + + // "A broker MUST reject an envelope whose frame carries trailing + // bytes after the envelope" — an envelope with a record glued on + // is a different message than the one we would be acting on. + require(at == bytes.size) { "broker control envelope has ${bytes.size - at} trailing byte(s)" } + + return QuicBrokerControlEnvelopeV1(controlType, streamId, startEventId) + } + } +} + +/** + * Length-delimited record frames on a delivery stream: + * `uint32 frame_len || AgentTextStreamRecordV1[frame_len]`. + * + * The 4-byte big-endian prefix is the transport's only framing; QUIC gives an + * ordered byte stream, not messages. + */ +object AgentTextStreamFraming { + /** + * Header + AEAD-tag allowance the binding adds on top of a group's + * `max_plaintext_frame_len` when sizing a frame. + */ + const val FRAME_OVERHEAD_ALLOWANCE = 1024 + + /** + * The cap a broker enforces. It cannot read group state, so it uses the + * v1 component's largest legal `max_plaintext_frame_len` plus the same + * allowance. A client that knows the group's actual policy uses that + * instead, which is always smaller. + */ + const val BROKER_MAX_FRAME_LEN = AgentTextStreamQuicPolicyV1.MAX_PLAINTEXT_FRAME_LEN.toInt() + FRAME_OVERHEAD_ALLOWANCE + + fun frame(record: AgentTextStreamRecordV1): ByteArray { + val encoded = record.encode() + require(encoded.size <= BROKER_MAX_FRAME_LEN) { "agent text stream frame is over the transport cap" } + val out = ByteArray(4 + encoded.size) + out[0] = ((encoded.size shr 24) and 0xff).toByte() + out[1] = ((encoded.size shr 16) and 0xff).toByte() + out[2] = ((encoded.size shr 8) and 0xff).toByte() + out[3] = (encoded.size and 0xff).toByte() + encoded.copyInto(out, 4) + return out + } + + /** + * Incremental frame reader over a QUIC stream's bytes. + * + * A QUIC stream hands over whatever arrived, so a record can straddle any + * number of reads; the reader buffers until a whole frame is present and + * returns the records it completed. + * + * @param maxPlaintextFrameLen the group's policy value when the caller + * knows it. A receiver that knows the policy must reject anything above + * it; without one the broker's blind cap applies. + */ + class Reader( + maxPlaintextFrameLen: Long? = null, + ) { + private val maxFrameLen = + maxPlaintextFrameLen?.let { (it + FRAME_OVERHEAD_ALLOWANCE).coerceAtMost(BROKER_MAX_FRAME_LEN.toLong()).toInt() } + ?: BROKER_MAX_FRAME_LEN + + private var buffer = ByteArray(0) + + /** The stream id of the first record, which every later record must repeat. */ + var pinnedStreamId: ByteArray? = null + private set + + /** Buffer the bytes and return whatever records they completed, in order. */ + fun push(chunk: ByteArray): List { + buffer += chunk + val out = mutableListOf() + while (true) { + if (buffer.size < 4) return out + val frameLen = + ((buffer[0].toLong() and 0xff) shl 24) or + ((buffer[1].toLong() and 0xff) shl 16) or + ((buffer[2].toLong() and 0xff) shl 8) or + (buffer[3].toLong() and 0xff) + require(frameLen <= maxFrameLen) { "agent text stream frame_len $frameLen is over the cap $maxFrameLen" } + if (buffer.size < 4 + frameLen) return out + + val record = AgentTextStreamRecordV1.decode(buffer.copyOfRange(4, (4 + frameLen).toInt())) + buffer = buffer.copyOfRange((4 + frameLen).toInt(), buffer.size) + + val pinned = pinnedStreamId + if (pinned == null) { + pinnedStreamId = record.streamId + } else { + // "A reader MUST reject records whose stream_id differs + // from the first record's stream_id on the same stream." + require(record.streamId.contentEquals(pinned)) { + "agent text stream record carries a different stream_id than the stream it arrived on" + } + } + out.add(record) + } + } + } +} + +/** + * One `["broker", "quic://"]` endpoint candidate. + * + * Candidates are advisory routing hints, not authenticated stream content: a + * candidate that points somewhere hostile still cannot forge a record, because + * every record is authenticated under the group-derived record key. So a + * candidate that does not parse, does not connect, or serves a different + * stream is skipped rather than treated as an error — hence [parse] returning + * null instead of throwing. + */ +class QuicEndpointCandidate( + val host: String, + val port: Int, + /** + * True for a DNS hostname, false for an IPv4/IPv6 literal. Decides the + * trust model: a name gets normal DNS-name/SNI validation, a literal is + * matched against an `iPAddress` subjectAltName and gets no SNI at all. + */ + val isDnsName: Boolean, +) { + /** The SNI to send, or null for an IP literal (which must not carry one). */ + val serverNameIndication: String? get() = host.takeIf { isDnsName } + + companion object { + const val SCHEME = "quic://" + + /** `quic://` + at most 505 authority bytes. */ + const val MAX_CANDIDATE_BYTES = 512 + + fun parse(candidate: String): QuicEndpointCandidate? { + val bytes = candidate.encodeToByteArray() + if (bytes.size > MAX_CANDIDATE_BYTES) return null + // Round-tripping catches a candidate that was not valid UTF-8 to + // begin with: the decoder substitutes U+FFFD and the bytes differ. + if (!bytes.decodeToString().encodeToByteArray().contentEquals(bytes)) return null + if (!candidate.startsWith(SCHEME)) return null + + // "The authority ends at the first /, ? or #; everything after + // that character is ignored." + val rest = candidate.substring(SCHEME.length) + val authority = rest.takeWhile { it != '/' && it != '?' && it != '#' } + if (authority.isEmpty()) return null + + val host: String + val portText: String + if (authority.startsWith("[")) { + val close = authority.indexOf(']') + if (close < 0) return null + host = authority.substring(1, close) + if (authority.getOrNull(close + 1) != ':') return null + portText = authority.substring(close + 2) + if (!host.contains(':')) return null + } else { + val colon = authority.lastIndexOf(':') + if (colon <= 0) return null + host = authority.substring(0, colon) + portText = authority.substring(colon + 1) + if (host.contains(':')) return null + } + + if (host.isEmpty()) return null + val port = portText.toIntOrNull() ?: return null + if (port !in 1..65535) return null + + return QuicEndpointCandidate(host, port, isDnsName = !looksLikeIpLiteral(host)) + } + + private fun looksLikeIpLiteral(host: String): Boolean { + if (host.contains(':')) return true + val parts = host.split('.') + if (parts.size != 4) return false + return parts.all { part -> + part.isNotEmpty() && part.length <= 3 && part.all { it.isDigit() } && (part.toIntOrNull() ?: 256) <= 255 + } + } + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AgentTextStreamQuicTransportTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AgentTextStreamQuicTransportTest.kt new file mode 100644 index 0000000000..23993693f9 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AgentTextStreamQuicTransportTest.kt @@ -0,0 +1,249 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRecordV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.AgentTextStreamFraming +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.BrokerControlType +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicAlpn +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.QuicBrokerControlEnvelopeV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.QuicEndpointCandidate +import org.junit.Assert.assertArrayEquals +import org.junit.Assert.assertEquals +import org.junit.Assert.assertNull +import org.junit.Assert.assertThrows +import org.junit.Assert.assertTrue +import org.junit.Test + +/** + * `transports/quic.md` — the raw QUIC binding for agent text stream previews. + * + * This is the wire between us and a broker written by somebody else, so every + * rule here is one an independent implementation will hold us to: the exact + * ALPN strings, the control envelope's field layout and its literal protocol + * string, the 4-byte frame prefix and its caps, and what a candidate URL does + * and does not mean. + */ +class AgentTextStreamQuicTransportTest { + private val streamId = ByteArray(32) { 0x11 } + private val startEventId = ByteArray(32) { 0x22 } + + // --- ALPN ------------------------------------------------------------- + + @Test + fun theTwoAlpnsAreTheExactStringsTheSpecNames() { + assertEquals("marmot.quic_broker.v1", MarmotQuicAlpn.BROKER.decodeToString()) + assertEquals("marmot.quic_stream.v1", MarmotQuicAlpn.DIRECT.decodeToString()) + } + + // --- Broker control envelope ----------------------------------------- + + @Test + fun aControlEnvelopeRoundTrips() { + for (type in BrokerControlType.entries) { + val envelope = QuicBrokerControlEnvelopeV1(type, streamId, startEventId) + val decoded = QuicBrokerControlEnvelopeV1.decode(envelope.encode()) + assertEquals(type, decoded.controlType) + assertArrayEquals(streamId, decoded.streamId) + assertArrayEquals(startEventId, decoded.startEventId) + } + } + + @Test + fun theEnvelopeStartsWithTheLengthPrefixedProtocolString() { + val encoded = QuicBrokerControlEnvelopeV1(BrokerControlType.PUBLISH, streamId, startEventId).encode() + // varint(21) fits in one byte, so the protocol string starts at index 1. + assertEquals(21, encoded[0].toInt()) + assertEquals("marmot.quic_broker.v1", encoded.copyOfRange(1, 22).decodeToString()) + assertEquals(BrokerControlType.PUBLISH.code, encoded[22].toInt()) + } + + @Test + fun anEnvelopeNamingAnotherProtocolIsRejected() { + val good = QuicBrokerControlEnvelopeV1(BrokerControlType.SUBSCRIBE, streamId, startEventId).encode() + // Same length, different string: a broker must reject on the bytes, not the length. + val tampered = good.copyOf() + tampered[1] = 'M'.code.toByte() + assertThrows(IllegalArgumentException::class.java) { QuicBrokerControlEnvelopeV1.decode(tampered) } + } + + @Test + fun anUnknownControlTypeIsRejectedRatherThanIgnored() { + val encoded = QuicBrokerControlEnvelopeV1(BrokerControlType.PUBLISH, streamId, startEventId).encode() + encoded[22] = 0x7f + assertThrows(IllegalArgumentException::class.java) { QuicBrokerControlEnvelopeV1.decode(encoded) } + } + + @Test + fun trailingBytesAfterTheEnvelopeAreRejected() { + val encoded = QuicBrokerControlEnvelopeV1(BrokerControlType.PUBLISH, streamId, startEventId).encode() + assertThrows(IllegalArgumentException::class.java) { + QuicBrokerControlEnvelopeV1.decode(encoded + byteArrayOf(0x00)) + } + } + + @Test + fun anIdentityFieldOutsideItsBoundIsRejected() { + assertThrows(IllegalArgumentException::class.java) { + QuicBrokerControlEnvelopeV1(BrokerControlType.PUBLISH, ByteArray(0), startEventId).encode() + } + assertThrows(IllegalArgumentException::class.java) { + QuicBrokerControlEnvelopeV1(BrokerControlType.PUBLISH, ByteArray(65), startEventId).encode() + } + } + + // --- Record framing --------------------------------------------------- + + @Test + fun aFrameIsAFourByteBigEndianLengthFollowedByTheRecord() { + val record = AgentTextStreamRecordV1(streamId, seq = 1, recordType = 1, frame = ByteArray(7) { 0x5a }) + val encoded = record.encode() + val framed = AgentTextStreamFraming.frame(record) + + assertEquals(4 + encoded.size, framed.size) + assertEquals(0, framed[0].toInt()) + assertEquals(0, framed[1].toInt()) + assertEquals((encoded.size shr 8) and 0xff, framed[2].toInt() and 0xff) + assertEquals(encoded.size and 0xff, framed[3].toInt() and 0xff) + assertArrayEquals(encoded, framed.copyOfRange(4, framed.size)) + } + + @Test + fun theReaderDeliversRecordsAsTheirBytesArriveInAnySplit() { + val records = + (1..4).map { + AgentTextStreamRecordV1(streamId, seq = it.toLong(), recordType = 1, frame = "chunk $it".encodeToByteArray()) + } + val wire = records.fold(ByteArray(0)) { acc, r -> acc + AgentTextStreamFraming.frame(r) } + + // One byte at a time is the worst case a QUIC stream can hand us. + val reader = AgentTextStreamFraming.Reader() + val delivered = mutableListOf() + for (b in wire) delivered.addAll(reader.push(byteArrayOf(b))) + + assertEquals(records.size, delivered.size) + delivered.forEachIndexed { i, r -> + assertEquals(records[i].seq, r.seq) + assertArrayEquals(records[i].frame, r.frame) + } + } + + @Test + fun theReaderRefusesAFrameOverTheBrokerCap() { + val reader = AgentTextStreamFraming.Reader() + val tooBig = AgentTextStreamFraming.BROKER_MAX_FRAME_LEN + 1 + val header = + byteArrayOf( + ((tooBig shr 24) and 0xff).toByte(), + ((tooBig shr 16) and 0xff).toByte(), + ((tooBig shr 8) and 0xff).toByte(), + (tooBig and 0xff).toByte(), + ) + assertThrows(IllegalArgumentException::class.java) { reader.push(header) } + } + + @Test + fun aReaderThatKnowsTheGroupPolicyRefusesAnythingOverIt() { + // max_plaintext_frame_len + the spec's 1024-byte header/tag allowance. + val reader = AgentTextStreamFraming.Reader(maxPlaintextFrameLen = 16) + val record = AgentTextStreamRecordV1(streamId, seq = 1, recordType = 1, frame = ByteArray(2000)) + assertThrows(IllegalArgumentException::class.java) { reader.push(AgentTextStreamFraming.frame(record)) } + } + + @Test + fun aReaderPinsTheStreamIdOfItsFirstRecord() { + val reader = AgentTextStreamFraming.Reader() + reader.push(AgentTextStreamFraming.frame(AgentTextStreamRecordV1(streamId, 1, 1, frame = ByteArray(1)))) + val otherStream = ByteArray(32) { 0x33 } + assertThrows(IllegalArgumentException::class.java) { + reader.push(AgentTextStreamFraming.frame(AgentTextStreamRecordV1(otherStream, 2, 1, frame = ByteArray(1)))) + } + } + + // --- Endpoint candidates --------------------------------------------- + + @Test + fun aCandidateIsAnAuthorityAndNothingAfterIt() { + val parsed = QuicEndpointCandidate.parse("quic://broker.example:4433")!! + assertEquals("broker.example", parsed.host) + assertEquals(4433, parsed.port) + assertTrue(parsed.isDnsName) + + // A path, query or fragment is ignored, not rejected. + for (suffix in listOf("/room/1", "?x=1", "#frag")) { + val withSuffix = QuicEndpointCandidate.parse("quic://broker.example:4433$suffix")!! + assertEquals("broker.example", withSuffix.host) + assertEquals(4433, withSuffix.port) + } + } + + @Test + fun anIpv6LiteralKeepsItsBracketsOutOfTheHost() { + val parsed = QuicEndpointCandidate.parse("quic://[2001:db8::1]:443")!! + assertEquals("2001:db8::1", parsed.host) + assertEquals(443, parsed.port) + assertTrue( + "an IP literal is matched against an iPAddress SAN and is never sent as SNI", + !parsed.isDnsName, + ) + assertNull(parsed.serverNameIndication) + } + + @Test + fun anIpv4LiteralIsAlsoNotASniName() { + val parsed = QuicEndpointCandidate.parse("quic://192.0.2.7:4433")!! + assertEquals("192.0.2.7", parsed.host) + assertTrue(!parsed.isDnsName) + assertNull(parsed.serverNameIndication) + } + + @Test + fun aDnsCandidateCarriesItsOwnSni() { + assertEquals("broker.example", QuicEndpointCandidate.parse("quic://broker.example:4433")!!.serverNameIndication) + } + + @Test + fun anUnusableCandidateIsSkippedNotFatal() { + // The spec says a receiver moves to the next candidate; null is that. + val bad = + listOf( + "https://broker.example:4433", + "quic://broker.example", + "quic://broker.example:0", + "quic://broker.example:65536", + "quic://:4433", + "quic://[2001:db8::1:443", + "quic://" + "h".repeat(506) + ":443", + "", + ) + for (candidate in bad) { + assertNull("must not accept $candidate", QuicEndpointCandidate.parse(candidate)) + } + } + + @Test + fun aCandidateOverTheByteBoundIsRejected() { + val authority = "h".repeat(505 - 4) + ":443" + assertEquals(512, ("quic://$authority").length) + assertTrue(QuicEndpointCandidate.parse("quic://$authority") != null) + assertNull(QuicEndpointCandidate.parse("quic://x$authority")) + } +} diff --git a/settings.gradle.kts b/settings.gradle.kts index 129aa4fe3f..4e63b53707 100644 --- a/settings.gradle.kts +++ b/settings.gradle.kts @@ -39,6 +39,7 @@ include(":geode") include(":commons") include(":quic") include(":nestsClient") +include(":marmotQuic") include(":desktopApp") include(":cli") include(":relayBench") From 7014d88b2eb8f6e6ad70e99388fbb4fa202243a6 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 12:43:44 +0000 Subject: [PATCH 31/79] feat(marmot): wire agent text streams end to end, both directions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The transport was there and the codecs were there; nothing joined them to a group. Now `amy marmot stream start|send|watch|finish` does: a hidden kind:1200 anchors the stream over MLS, records ride raw QUIC through a broker, and a kind:9 closes it carrying the transcript a receiver checks its own fold against. `AgentTextStreamSubscriber` is the receive discipline the binding spells out, and it matters because a preview that quietly diverges is worse than no preview: `seq` accepted at most once and never folded out of order, a replayed record (which a broker WILL send from the start of its replay window on reconnect) discarded silently and never stream-fatal, a gap that cannot be backfilled marking the preview unverifiable because the transcript hash can no longer complete. Only TextDelta and Checkpoint reach the answer text — progress and status are chrome the spec forbids from ever reaching notifications, indexes or automation input. The start payload also grew the tags it was missing: `stream-type`, `final-kind` and the optional `parent`, plus the rule that a final payload whose kind disagrees with `final-kind` is ignored. Verified in both directions against MDK in harness tests 18 and 19: `wn stream verify` confirms our transcript from our own kind:1200 + kind:9, and our subscriber folds MDK's stream to a transcript hash identical to the one `wn stream send` computed. That equality is the key schedule, key context, AEAD, framing and transcript construction all agreeing with an implementation that is not ours. 19 of 19 harness tests pass, twice. Two defects only that exercise could have found: - The epoch belongs to the stream, not to the clock. The record key context binds mls_epoch, and both sides were resolving it as "the group's current epoch" at each command, so a commit landing between the start and the send put them on different keys and produced an empty preview. The epoch that DELIVERED the kind:1200 is the stream's; it is persisted with the message now and read back by publisher and receiver alike. - close() dropped the tail of a stream. enqueue only fills the send buffer, so tearing the connection down before the driver flushed it lost records silently — the publisher had already counted them. QUIC ACKs a FIN only once everything ahead of it arrived, so finish() now waits for finAcked. This is exactly why the test passed alone and failed inside a full run. The `send` (0xF2D2) and `fanout` (0xF2D4) role capabilities stay unadvertised: a role is a promise to the whole group, and only the CLI originates a stream so far. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../model/marmot/AndroidMarmotMessageStore.kt | 64 ++- cli/build.gradle.kts | 4 + .../com/vitorpamplona/amethyst/cli/Main.kt | 4 +- .../amethyst/cli/commands/StreamCommands.kt | 373 ++++++++++++++++++ .../amethyst/cli/stores/FileStores.kt | 25 ++ cli/tests/marmot/marmot-interop-headless.sh | 13 + cli/tests/marmot/setup.sh | 42 ++ cli/tests/marmot/tests-extras.sh | 150 +++++++ .../amethyst/commons/marmot/MarmotIngest.kt | 2 +- .../amethyst/commons/marmot/MarmotManager.kt | 136 +++++++ marmotQuic/README.md | 18 +- .../QuicAgentTextStreamTransport.kt | 38 ++ .../marmotquic/MarmotQuicBrokerInteropTest.kt | 1 + quartz/plans/2026-09-08-marmot-spec-resync.md | 46 ++- .../agentTextStream/AgentTextStreamStart.kt | 57 ++- .../AgentTextStreamSubscriber.kt | 189 +++++++++ .../transport}/MarmotQuicStreamTransport.kt | 2 +- .../marmot/mls/group/MarmotMessageStore.kt | 23 ++ .../AgentTextStreamSubscriberTest.kt | 242 ++++++++++++ 19 files changed, 1404 insertions(+), 25 deletions(-) create mode 100644 cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/StreamCommands.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamSubscriber.kt rename {marmotQuic/src/commonMain/kotlin/com/vitorpamplona/marmotquic => quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/transport}/MarmotQuicStreamTransport.kt (98%) create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AgentTextStreamSubscriberTest.kt diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt index 829126eb67..d313488a3e 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt @@ -111,16 +111,64 @@ class AndroidMarmotMessageStore( override suspend fun delete(nostrGroupId: String) { withContext(Dispatchers.IO) { writeMutex.withLock { - val file = messagesFile(nostrGroupId) - if (file.exists() && !file.delete()) { - Log.w(TAG) { "delete($nostrGroupId): failed to remove ${file.absolutePath}" } + for (file in listOf(messagesFile(nostrGroupId), epochsFile(nostrGroupId))) { + if (file.exists() && !file.delete()) { + Log.w(TAG) { "delete($nostrGroupId): failed to remove ${file.absolutePath}" } + } } } } } - private fun readAll(nostrGroupId: String): List { - val file = messagesFile(nostrGroupId) + private fun epochsFile(nostrGroupId: String): File = File(groupDir(nostrGroupId), "epochs") + + /** + * Which MLS epoch delivered an inner event. Agent text streams bind the + * epoch into their record key context, so a receiver needs the epoch that + * carried the stream's kind:1200 anchor rather than the group's current + * one — a commit landing in between would otherwise derive a different key + * and render nothing. + * + * Stored through the same encrypted codec as the messages: the ids are as + * sensitive as the payloads they point at. + */ + override suspend fun recordEpoch( + nostrGroupId: String, + innerEventId: String, + epoch: Long, + ) = withContext(Dispatchers.IO) { + writeMutex.withLock { + try { + val line = "$innerEventId $epoch" + val existing = readAllFrom(epochsFile(nostrGroupId)).toMutableList() + if (line in existing) return@withLock + existing.add(line) + writeAllTo(epochsFile(nostrGroupId), existing) + } catch (e: Exception) { + Log.e(TAG, "recordEpoch($nostrGroupId) FAILED: ${e.message}", e) + } + } + } + + override suspend fun loadEpochs(nostrGroupId: String): Map = + withContext(Dispatchers.IO) { + try { + readAllFrom(epochsFile(nostrGroupId)) + .mapNotNull { line -> + val parts = line.trim().split(' ') + if (parts.size != 2) return@mapNotNull null + val epoch = parts[1].toLongOrNull() ?: return@mapNotNull null + parts[0] to epoch + }.toMap() + } catch (e: Exception) { + Log.e(TAG, "loadEpochs($nostrGroupId) FAILED: ${e.message}", e) + emptyMap() + } + } + + private fun readAll(nostrGroupId: String): List = readAllFrom(messagesFile(nostrGroupId)) + + private fun readAllFrom(file: File): List { if (!file.exists()) return emptyList() val encrypted = file.readBytes() val plain = encryption.decrypt(encrypted) ?: return emptyList() @@ -151,8 +199,12 @@ class AndroidMarmotMessageStore( private fun writeAll( nostrGroupId: String, messages: List, + ) = writeAllTo(messagesFile(nostrGroupId), messages) + + private fun writeAllTo( + file: File, + messages: List, ) { - val file = messagesFile(nostrGroupId) file.parentFile?.mkdirs() val encodedEntries = messages.map { it.encodeToByteArray() } diff --git a/cli/build.gradle.kts b/cli/build.gradle.kts index 6aa88d026f..cd33bc9080 100644 --- a/cli/build.gradle.kts +++ b/cli/build.gradle.kts @@ -43,6 +43,10 @@ tasks.named("test") { dependencies { implementation(project(":quartz")) implementation(project(":commons")) + // Agent text stream previews: the raw-QUIC binding, and the QUIC + // stack under it for the certificate validator the transport requires. + implementation(project(":marmotQuic")) + implementation(project(":quic")) // `amy serve` embeds geode (the standalone Ktor relay built on quartz's // relay-server code). geode depends only on :quartz, never on :amethyst. implementation(project(":geode")) diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Main.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Main.kt index 1375852f28..5d5997dfa6 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Main.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Main.kt @@ -71,6 +71,7 @@ import com.vitorpamplona.amethyst.cli.commands.SearchCommand import com.vitorpamplona.amethyst.cli.commands.ServeCommand import com.vitorpamplona.amethyst.cli.commands.StatusCommand import com.vitorpamplona.amethyst.cli.commands.StoreCommands +import com.vitorpamplona.amethyst.cli.commands.StreamCommands import com.vitorpamplona.amethyst.cli.commands.SubscribeCommand import com.vitorpamplona.amethyst.cli.commands.SyncCommand import com.vitorpamplona.amethyst.cli.commands.UseCommand @@ -370,12 +371,13 @@ private suspend fun marmotDispatch( route( name = "marmot", tail = tail, - usage = "marmot ", + usage = "marmot ", routes = mapOf( "key-package" to { rest -> KeyPackageCommands.dispatch(dataDir, rest) }, "group" to { rest -> GroupCommands.dispatch(dataDir, rest) }, "message" to { rest -> MessageCommands.dispatch(dataDir, rest) }, + "stream" to { rest -> StreamCommands.dispatch(dataDir, rest) }, "await" to { rest -> AwaitCommands.dispatch(dataDir, rest) }, "reset" to { rest -> MarmotResetCommand.run(dataDir, rest) }, ), diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/StreamCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/StreamCommands.kt new file mode 100644 index 0000000000..e7e1ef3b70 --- /dev/null +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/StreamCommands.kt @@ -0,0 +1,373 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.cli.commands + +import com.vitorpamplona.amethyst.cli.Args +import com.vitorpamplona.amethyst.cli.Context +import com.vitorpamplona.amethyst.cli.DataDir +import com.vitorpamplona.amethyst.cli.Output +import com.vitorpamplona.marmotquic.QuicAgentTextStreamTransport +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamPublisher +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRecordV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamStart +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamSubscriber +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.InMemoryAgentTextStreamSequenceStore +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.PreviewStatus +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.RecordOutcome +import com.vitorpamplona.quartz.marmot.mls.crypto.MlsCryptoProvider +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quic.tls.PermissiveCertificateValidator +import kotlinx.coroutines.withTimeoutOrNull + +/** + * `amy marmot stream` — agent text stream previews (`0x8006`). + * + * The durable half is ordinary Marmot messaging: a hidden kind:1200 anchors + * the stream and a kind:9 closes it, both over MLS. The live half is raw QUIC + * to a broker, and it is strictly a progressive enhancement — a member that + * never opens a QUIC connection still reads the whole answer from the final + * kind:9. + */ +object StreamCommands { + val USAGE: String = + """ + |amy marmot stream — agent text stream previews over QUIC + | + | marmot stream start GID [--stream-id HEX] [--broker quic://HOST:PORT[,…]] + | publish the kind:1200 that anchors a stream; prints stream_id + start_event_id + | + | marmot stream send GID --stream-id HEX --start-event-id HEX --broker URI TEXT… + | push TEXT as TextDelta records to the broker; prints the transcript to finish with + | + | marmot stream watch GID [--stream-id HEX] [--timeout SECS] + | find the kind:1200 in the group, subscribe over QUIC, fold the preview + | + | marmot stream finish GID --stream-id HEX --transcript-hash HEX --chunk-count N TEXT… + | publish the authoritative kind:9 carrying the transcript a receiver checks against + | + |Every record is encrypted under the group's own MLS exporter secret, so a + |broker relays ciphertext and learns only which room it belongs to. + """.trimMargin() + + suspend fun dispatch( + dataDir: DataDir, + tail: Array, + ): Int = + route( + "stream", + tail, + "stream …", + mapOf( + "start" to { rest -> start(dataDir, rest) }, + "send" to { rest -> send(dataDir, rest) }, + "watch" to { rest -> watch(dataDir, rest) }, + "finish" to { rest -> finish(dataDir, rest) }, + ), + help = USAGE, + ) + + private suspend fun start( + dataDir: DataDir, + rest: Array, + ): Int { + val args = Args(rest) + val positional = args.positional + if (positional.isEmpty()) return Output.error("bad_args", "stream start GID [--stream-id HEX] [--broker URI]…") + + val streamId = args.flag("stream-id") ?: MlsCryptoProvider.randomBytes(32).toHexKey() + if (streamId.length != 64) return Output.error("bad_args", "--stream-id must be 32 bytes of hex") + // Repeatable in the spec, comma-separated here: `Args` keeps one + // value per flag and a receiver tries them in the order given. + val brokers = + args + .flag("broker") + ?.split(',') + ?.map { it.trim() } + ?.filter { it.isNotEmpty() } ?: emptyList() + + Context.open(dataDir).use { ctx -> + ctx.prepare() + val gid = ctx.resolveGroupId(positional[0]) + ctx.syncIncoming() + if (!ctx.marmot.isMember(gid)) return Output.error("not_member", "not a member of group $gid") + + val bundle = ctx.marmot.buildAgentStreamStart(gid, streamId, brokers, parentEventId = args.flag("parent")) + val targets = ctx.marmotGroupRelays(gid).ifEmpty { ctx.outboxRelays() } + val ack = ctx.publish(bundle.outbound.signedEvent, targets) + RawEventSupport.publishGuard(ack, bundle.outbound.signedEvent.id)?.let { return it } + + Output.emit( + mapOf( + "group_id" to gid, + "stream_id" to streamId, + // The start payload's OWN id is the stream anchor that + // goes into the key context — not the kind:445 that + // carried it, and not the MLS message id. + "start_event_id" to bundle.innerEvent.id, + "epoch" to ctx.marmot.currentEpoch(gid), + "brokers" to brokers, + ) + RawEventSupport.ackFields(ack), + ) + return 0 + } + } + + private suspend fun send( + dataDir: DataDir, + rest: Array, + ): Int { + val args = Args(rest) + val positional = args.positional + val streamId = args.flag("stream-id") + val startEventId = args.flag("start-event-id") + val broker = args.flag("broker") + if (positional.size < 2 || streamId == null || startEventId == null || broker == null) { + return Output.error("bad_args", "stream send GID --stream-id HEX --start-event-id HEX --broker URI TEXT…") + } + + Context.open(dataDir).use { ctx -> + ctx.prepare() + val gid = ctx.resolveGroupId(positional[0]) + if (!ctx.marmot.isMember(gid)) return Output.error("not_member", "not a member of group $gid") + + // The stream's epoch is the one that carried its kind:1200, not + // whatever the group has reached by now — a commit between the + // start and the first record would otherwise put the publisher on + // a key no receiver derives. + val anchorEpoch = + args.flag("epoch")?.toLongOrNull() + ?: ctx.marmot.storedEpochs(gid)[startEventId] + val crypto = + ctx.marmot.agentTextStreamCrypto( + nostrGroupId = gid, + streamId = streamId.hexToByteArray(), + startEventId = startEventId.hexToByteArray(), + epoch = anchorEpoch, + ) + val publisher = AgentTextStreamPublisher.open(crypto, InMemoryAgentTextStreamSequenceStore()) + val transport = QuicAgentTextStreamTransport(certificateValidator = PermissiveCertificateValidator()) + + val stream = + try { + transport.publish(broker, streamId.hexToByteArray(), startEventId.hexToByteArray()) + } catch (e: Exception) { + return Output.error("broker_unreachable", "${e.message}") + } + try { + for (text in positional.drop(1)) { + stream.send(publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, text.encodeToByteArray())) + } + stream.finish() + } finally { + stream.close() + } + + Output.emit( + mapOf( + "group_id" to gid, + "stream_id" to streamId, + "start_event_id" to startEventId, + "records" to positional.size - 1, + "epoch" to crypto.context.mlsEpoch, + // What `stream finish` has to publish so a receiver can + // prove it saw this exact stream. + "transcript_hash" to publisher.transcript.hash.toHexKey(), + "chunk_count" to publisher.transcript.chunkCount, + ), + ) + return 0 + } + } + + private suspend fun watch( + dataDir: DataDir, + rest: Array, + ): Int { + val args = Args(rest) + val positional = args.positional + if (positional.isEmpty()) return Output.error("bad_args", "stream watch GID [--stream-id HEX] [--timeout SECS]") + val timeoutMs = (args.flag("timeout")?.toLongOrNull() ?: 30L) * 1000 + + Context.open(dataDir).use { ctx -> + ctx.prepare() + val gid = ctx.resolveGroupId(positional[0]) + ctx.syncIncoming() + if (!ctx.marmot.isMember(gid)) return Output.error("not_member", "not a member of group $gid") + + val wanted = args.flag("stream-id") + val anchor = + findStart(ctx, gid, wanted) + ?: return Output.error("no_stream", "no kind:1200 stream start in group $gid") + val (startEvent, start) = anchor + + if (!start.isTextProfile) { + return Output.error("unsupported_stream", "stream-type=${start.streamType} final-kind=${start.finalKind}") + } + if (!start.isQuicRoute) { + return Output.error("unsupported_route", "route=${start.route} — only the raw QUIC binding is implemented") + } + if (start.brokerCandidates.isEmpty()) { + return Output.error("no_candidate", "the start payload advertises no broker; the final kind:9 is the answer") + } + + // The key context is the PUBLISHER's, not ours: the sender id and + // the epoch are theirs, and every member of that epoch derives the + // same record key from the group exporter. + // + // The epoch is the one that DELIVERED the anchor, not the group's + // current one. A commit landing between the start and the watch + // moves the group on, and deriving under the newer epoch produces + // a different key and an empty preview. + val anchorEpoch = + args.flag("epoch")?.toLongOrNull() + ?: ctx.marmot.storedEpochs(gid)[startEvent.id] + val crypto = + ctx.marmot.agentTextStreamCrypto( + nostrGroupId = gid, + streamId = start.streamId.hexToByteArray(), + startEventId = startEvent.id.hexToByteArray(), + senderPubKey = startEvent.pubKey, + epoch = anchorEpoch, + ) + val subscriber = AgentTextStreamSubscriber(crypto) + val transport = QuicAgentTextStreamTransport(certificateValidator = PermissiveCertificateValidator()) + + // "A receiver tries advertised candidates in listed order"; the + // first that yields the matching stream wins. + var lastError: String? = null + for (candidate in start.brokerCandidates) { + val stream = + try { + transport.subscribe(candidate, start.streamId.hexToByteArray(), startEvent.id.hexToByteArray()) + } catch (e: Exception) { + lastError = "${e.message}" + continue + } + val outcomes = mutableMapOf() + try { + withTimeoutOrNull(timeoutMs) { + stream.incoming().collect { record -> + val outcome = subscriber.accept(record) + outcomes[outcome.name] = (outcomes[outcome.name] ?: 0) + 1 + if (outcome == RecordOutcome.Accepted && + (subscriber.status == PreviewStatus.FINISHED || subscriber.status == PreviewStatus.ABORTED) + ) { + throw StreamComplete() + } + } + } + } catch (_: StreamComplete) { + // The publisher said the final message is coming. + } finally { + stream.close() + } + + Output.emit( + mapOf( + "group_id" to gid, + "stream_id" to start.streamId, + "start_event_id" to startEvent.id, + "author" to startEvent.pubKey, + "broker" to candidate, + "preview" to subscriber.previewText, + "status" to subscriber.status.name, + "records" to subscriber.highWaterMark, + "transcript_hash" to subscriber.transcript.hash.toHexKey(), + "chunk_count" to subscriber.transcript.chunkCount, + "epoch" to crypto.context.mlsEpoch, + "outcomes" to outcomes, + "latest_status" to subscriber.latestStatus, + "latest_progress" to subscriber.latestProgress, + ), + ) + return 0 + } + return Output.error("no_candidate_worked", lastError ?: "every advertised broker candidate was unusable") + } + } + + private suspend fun finish( + dataDir: DataDir, + rest: Array, + ): Int { + val args = Args(rest) + val positional = args.positional + val streamId = args.flag("stream-id") + val transcriptHash = args.flag("transcript-hash") + val chunkCount = args.flag("chunk-count")?.toLongOrNull() + if (positional.size < 2 || streamId == null || transcriptHash == null || chunkCount == null) { + return Output.error( + "bad_args", + "stream finish GID --stream-id HEX --transcript-hash HEX --chunk-count N TEXT…", + ) + } + + Context.open(dataDir).use { ctx -> + ctx.prepare() + val gid = ctx.resolveGroupId(positional[0]) + ctx.syncIncoming() + if (!ctx.marmot.isMember(gid)) return Output.error("not_member", "not a member of group $gid") + + val text = positional.drop(1).joinToString(" ") + val bundle = ctx.marmot.buildAgentStreamFinal(gid, streamId, transcriptHash, chunkCount, text) + val targets = ctx.marmotGroupRelays(gid).ifEmpty { ctx.outboxRelays() } + val ack = ctx.publish(bundle.outbound.signedEvent, targets) + RawEventSupport.publishGuard(ack, bundle.outbound.signedEvent.id)?.let { return it } + + Output.emit( + mapOf( + "group_id" to gid, + "stream_id" to streamId, + "final_event_id" to bundle.innerEvent.id, + "transcript_hash" to transcriptHash, + "chunk_count" to chunkCount, + "content" to text, + ) + RawEventSupport.ackFields(ack), + ) + return 0 + } + } + + /** + * The newest kind:1200 in the group's decrypted log, optionally pinned to + * one stream id. Newest wins because a group can carry many streams over + * its life and a watcher almost always means the current one. + */ + private suspend fun findStart( + ctx: Context, + nostrGroupId: String, + streamId: String?, + ): Pair? { + var best: Pair? = null + for (line in ctx.marmot.loadStoredMessages(nostrGroupId)) { + val parsed = Event.fromJsonOrNull(line) ?: continue + val start = AgentTextStreamStart.fromTags(parsed.kind, parsed.tags) ?: continue + if (streamId != null && !start.streamId.equals(streamId, ignoreCase = true)) continue + if (best == null || parsed.createdAt >= best.first.createdAt) best = parsed to start + } + return best + } + + /** Unwinds the collect loop once the publisher signalled the end. */ + private class StreamComplete : RuntimeException(null, null, false, false) +} diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt index 2fe55c7dd4..9b6d367c41 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt @@ -151,7 +151,32 @@ class FileMarmotMessageStore( override suspend fun delete(nostrGroupId: String) { file(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group messages") + epochFile(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group message epochs") } + + private fun epochFile(id: String) = File(dir, "$id.epochs") + + override suspend fun recordEpoch( + nostrGroupId: String, + innerEventId: String, + epoch: Long, + ) { + val line = "$innerEventId $epoch" + val target = epochFile(nostrGroupId) + if (target.exists() && target.readLines().any { it == line }) return + SecureFileIO.appendText(target, line + "\n") + } + + override suspend fun loadEpochs(nostrGroupId: String): Map = + epochFile(nostrGroupId) + .takeIf { it.exists() } + ?.readLines() + ?.mapNotNull { line -> + val parts = line.trim().split(' ') + if (parts.size != 2) return@mapNotNull null + val epoch = parts[1].toLongOrNull() ?: return@mapNotNull null + parts[0] to epoch + }?.toMap() ?: emptyMap() } /** diff --git a/cli/tests/marmot/marmot-interop-headless.sh b/cli/tests/marmot/marmot-interop-headless.sh index a1f058ca53..eadd5f00c9 100755 --- a/cli/tests/marmot/marmot-interop-headless.sh +++ b/cli/tests/marmot/marmot-interop-headless.sh @@ -53,6 +53,15 @@ RELAY_BIN="$RELAY_REPO/target/release/nostr-rs-relay" RELAY_DATA="$STATE_DIR/relay" RELAY_PORT="${RELAY_PORT:-8080}" RELAY_URL="ws://$RELAY_HOST:$RELAY_PORT" + +# MDK's reference QUIC broker, for the agent-text-stream tests. Loopback like +# everything else; the tests skip when the binary was never built. +BROKER_BIN="$WN_REPO/target/release/marmot-quic-broker" +BROKER_HOST="${BROKER_HOST:-127.0.0.1}" +BROKER_PORT="${BROKER_PORT:-4455}" +BROKER_URI="quic://$BROKER_HOST:$BROKER_PORT" +BROKER_PID="" + NO_BUILD=0 # Every run starts from empty stores. wnd already wipes B's and C's data dirs # on each start, but A's amy home and the relay's SQLite file used to survive, @@ -129,6 +138,7 @@ cleanup() { local rc=$? trap - EXIT INT TERM HUP stop_daemons + stop_quic_broker stop_local_relay print_summary exit "$rc" @@ -141,6 +151,7 @@ trap 'exit 129' HUP banner "Marmot headless interop harness ($RUN_TS)" preflight start_local_relay +start_quic_broker || true start_daemon B "$B_DIR" "$B_SOCKET" start_daemon C "$C_DIR" "$C_SOCKET" ensure_identity_a @@ -166,6 +177,8 @@ ALL_TESTS=( test_14_wn_removes_a test_15_wn_member_leaves test_16_wn_keypackage_rotation + test_18_agent_stream_amy_publishes + test_19_agent_stream_wn_publishes ) # --tests runs a subset in the order given. Most tests read state a previous diff --git a/cli/tests/marmot/setup.sh b/cli/tests/marmot/setup.sh index 5d64c2d654..82fe0e3c1b 100644 --- a/cli/tests/marmot/setup.sh +++ b/cli/tests/marmot/setup.sh @@ -120,6 +120,48 @@ preflight() { info "relay bin: $RELAY_BIN" } +# --- local QUIC broker ------------------------------------------------------- +# MDK's own `marmot-quic-broker`, the reference implementation of the other +# side of `transports/quic.md`. Agent text stream previews are the only tests +# that need it, and they are the only way to know our binding is right — the +# ALPN, the control envelope, the frame prefix and the record key schedule all +# have to agree with an implementation that is not ours. +# +# `--replay-ttl-secs` is what lets a subscriber that connects after the +# records were pushed still see them; with the default 0 a test would have to +# race the publisher. +start_quic_broker() { + if [[ ! -x "$BROKER_BIN" ]]; then + info "marmot-quic-broker not built — agent text stream tests will skip" + return 1 + fi + step "starting QUIC broker on $BROKER_HOST:$BROKER_PORT" + mkdir -p "$STATE_DIR/broker" + nohup "$BROKER_BIN" --bind "$BROKER_HOST:$BROKER_PORT" --replay-ttl-secs 60 --json \ + >"$STATE_DIR/broker/stdout.log" 2>"$STATE_DIR/broker/stderr.log" & + BROKER_PID=$! + local deadline=$(( $(date +%s) + 15 )) + while [[ $(date +%s) -lt $deadline ]]; do + if grep -q '"local_addr"' "$STATE_DIR/broker/stdout.log" 2>/dev/null; then + info "broker pid $BROKER_PID ready" + return 0 + fi + if ! kill -0 "$BROKER_PID" 2>/dev/null; then break; fi + sleep 1 + done + fail_msg "broker never came up (see $STATE_DIR/broker/stderr.log)" + tail -n 20 "$STATE_DIR/broker/stderr.log" 2>/dev/null | sed 's/^/ /' >&2 || true + BROKER_PID="" + return 1 +} + +stop_quic_broker() { + [[ -n "${BROKER_PID:-}" ]] || return 0 + step "stopping broker pid $BROKER_PID" + kill "$BROKER_PID" 2>/dev/null || true + BROKER_PID="" +} + # --- local relay ------------------------------------------------------------- # Start nostr-rs-relay on $RELAY_PORT with a minimal config. Every test # runs against this one loopback endpoint — no external network traffic. diff --git a/cli/tests/marmot/tests-extras.sh b/cli/tests/marmot/tests-extras.sh index 54c962e20e..9df6cb7a34 100644 --- a/cli/tests/marmot/tests-extras.sh +++ b/cli/tests/marmot/tests-extras.sh @@ -409,3 +409,153 @@ test_16_wn_keypackage_rotation() { record_result "$id" fail "amy kept seeing the pre-rotation KP" fi } + +# --- Agent text streams (0x8006) -------------------------------------------- +# The live-preview half of an agent turn: a hidden kind:1200 anchors the +# stream over MLS, encrypted records ride raw QUIC through a broker, and a +# kind:9 closes it with the transcript a receiver checks its own fold against. +# +# Both tests need MDK's `marmot-quic-broker` — the reference implementation of +# the other side. Without it there is no honest way to claim the binding is +# right, so they skip rather than pretending. + +test_18_agent_stream_amy_publishes() { + banner "Test 18 — amy publishes an agent text stream; wn verifies it" + local id="18 agent stream amy->wn" + + if [[ -z "${BROKER_PID:-}" ]]; then record_result "$id" skip "no QUIC broker"; return; fi + + # Its own group: by this point in the run A has left GROUP_02 and been + # removed from others, and a stream needs both parties actually present. + local out gid mls_gid + out=$(amy_json marmot group create --name "Interop-18") || { + record_result "$id" fail "amy group create failed"; return + } + gid=$(printf '%s' "$out" | jq -r '.group_id') + mls_gid=$(printf '%s' "$out" | jq -r '.mls_group_id') + amy_json marmot group add "$gid" "$B_NPUB" >/dev/null || { + record_result "$id" fail "amy group add B failed"; return + } + local b_gid + if ! b_gid=$(wait_for_invite B 60); then + record_result "$id" fail "B never received the invite"; return + fi + wn_b groups accept "$b_gid" >/dev/null 2>&1 || true + save_state GROUP_STREAM "$gid" + save_state GROUP_STREAM_MLS "$mls_gid" + + local start_json sid seid + start_json=$(amy_json marmot stream start "$gid" --broker "$BROKER_URI") || { + record_result "$id" fail "amy stream start failed"; return + } + sid=$(printf '%s' "$start_json" | jq -r '.stream_id // empty') + seid=$(printf '%s' "$start_json" | jq -r '.start_event_id // empty') + if [[ -z "$sid" || -z "$seid" ]]; then + record_result "$id" fail "stream start reported no ids"; return + fi + + local send_json thash chunks + send_json=$(amy_json marmot stream send "$gid" --stream-id "$sid" --start-event-id "$seid" \ + --broker "$BROKER_URI" "Hello " "from " "amethyst") || { + record_result "$id" fail "amy stream send failed"; return + } + thash=$(printf '%s' "$send_json" | jq -r '.transcript_hash // empty') + chunks=$(printf '%s' "$send_json" | jq -r '.chunk_count // empty') + printf 'stream18 start=%s\nstream18 send=%s\n' "$start_json" "$send_json" >>"$LOG_FILE" + + # Our own subscriber must recover the stream from the broker's replay window + # and fold it to the same transcript the publisher computed. + local watch_json + watch_json=$(amy_json marmot stream watch "$gid" --stream-id "$sid" --timeout 15) || { + record_result "$id" fail "amy stream watch failed"; return + } + printf 'stream18 watch=%s\n' "$watch_json" >>"$LOG_FILE" + if [[ "$(printf '%s' "$watch_json" | jq -r '.transcript_hash')" != "$thash" ]]; then + record_result "$id" fail "amy's own fold disagrees with what it published"; return + fi + if [[ "$(printf '%s' "$watch_json" | jq -r '.preview')" != "Hello from amethyst" ]]; then + record_result "$id" fail "preview text did not survive the round trip"; return + fi + + amy_json marmot stream finish "$gid" --stream-id "$sid" \ + --transcript-hash "$thash" --chunk-count "$chunks" "Hello from amethyst" >/dev/null || { + record_result "$id" fail "amy stream finish failed"; return + } + + # The real check: MDK reads our kind:1200 + kind:9 and confirms the + # transcript itself. + local deadline=$(( $(date +%s) + 60 )) verified="false" + while [[ $(date +%s) -lt $deadline ]]; do + verified=$(wn_b --json stream verify "$mls_gid" --stream-id "$sid" --transcript-hash "$thash" 2>/dev/null \ + | jq -r '.result.verified // false') + [[ "$verified" == "true" ]] && break + sleep 3 + done + if [[ "$verified" == "true" ]]; then + record_result "$id" pass + else + record_result "$id" fail "wn could not verify amy's transcript" + fi +} + +test_19_agent_stream_wn_publishes() { + banner "Test 19 — wn publishes an agent text stream; amy watches it" + local id="19 agent stream wn->amy" + + local gid mls_gid + gid=$(load_state GROUP_STREAM || true) + mls_gid=$(load_state GROUP_STREAM_MLS || true) + if [[ -z "${gid:-}" ]]; then record_result "$id" skip "no stream group (test 18 did not run)"; return; fi + if [[ -z "${BROKER_PID:-}" ]]; then record_result "$id" skip "no QUIC broker"; return; fi + + local wn_start wsid wseid + wn_start=$(wn_b --json stream start "$mls_gid" --quic-candidate "$BROKER_URI" 2>>"$LOG_FILE") || { + record_result "$id" fail "wn stream start failed"; return + } + wsid=$(printf '%s' "$wn_start" | jq -r '.result.stream_id // empty') + # wn reports the kind:1200's own Marmot app event id as message_ids[0] — + # the same value amy resolves as start_event_id from the payload itself. + wseid=$(printf '%s' "$wn_start" | jq -r '.result.message_ids[0] // empty') + if [[ -z "$wsid" || -z "$wseid" ]]; then + record_result "$id" fail "wn stream start reported no ids"; return + fi + + # amy has to have the kind:1200 before it can derive the stream's keys: the + # anchor's own event id is part of the key context. Sync until it lands. + local anchor_deadline=$(( $(date +%s) + 45 )) saw_anchor=0 + while [[ $(date +%s) -lt $anchor_deadline ]]; do + if amy_a marmot message list "$gid" --limit 50 2>/dev/null \ + | jq -e --arg id "$wseid" '.messages[]? | select(.event_id == $id)' >/dev/null 2>&1; then + saw_anchor=1; break + fi + sleep 3 + done + if [[ "$saw_anchor" -ne 1 ]]; then + record_result "$id" fail "amy never received wn's kind:1200 anchor"; return + fi + + local watch_out="$STATE_DIR/stream-19-watch.json" + ( amy_a marmot stream watch "$gid" --stream-id "$wsid" --timeout 25 >"$watch_out" 2>>"$LOG_FILE" ) & + local watch_pid=$! + sleep 4 + + local send_json wthash + send_json=$(wn_b --json stream send --broker --connect "$BROKER_HOST:$BROKER_PORT" --insecure-local \ + --stream-id "$wsid" --start-event-id "$wseid" "Hello from whitenoise" 2>>"$LOG_FILE") + wthash=$(printf '%s' "$send_json" | jq -r '.result.transcript_hash // empty') + wait "$watch_pid" || true + + local preview athash + preview=$(tail -n 1 "$watch_out" 2>/dev/null | jq -r '.preview // empty') + athash=$(tail -n 1 "$watch_out" 2>/dev/null | jq -r '.transcript_hash // empty') + + if [[ "$preview" != "Hello from whitenoise" ]]; then + record_result "$id" fail "amy rendered '$preview' instead of wn's text"; return + fi + # The decisive one: our record key schedule, key context, AEAD and transcript + # construction all have to match MDK's exactly for these to agree. + if [[ -n "$wthash" && "$athash" != "$wthash" ]]; then + record_result "$id" fail "transcript hash disagrees with wn's (${athash:0:12}… vs ${wthash:0:12}…)"; return + fi + record_result "$id" pass +} diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt index 54f51999d4..217df5d7c2 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt @@ -162,7 +162,7 @@ private suspend fun MarmotManager.ingestGroupEvent(ge: GroupEvent): MarmotIngest is GroupEventResult.ApplicationMessage -> { // MLS ratchets once we decrypt; future reads of the same ciphertext // would fail — persist the plaintext now so restarts/replays see it. - persistDecryptedMessage(result.groupId, result.innerEventJson) + persistDecryptedMessage(result.groupId, result.innerEventJson, result.epoch) MarmotIngestResult.Message(result) } diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index b1187d3abb..cef8174ea6 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -37,6 +37,10 @@ import com.vitorpamplona.quartz.marmot.appComponents.GroupBlossomImageV1 import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 import com.vitorpamplona.quartz.marmot.appComponents.MarmotGroupState import com.vitorpamplona.quartz.marmot.appComponents.MessageRetentionV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamCrypto +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamFinal +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamKeyContextV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamStart import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageEvent import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageRotationManager @@ -458,6 +462,119 @@ class MarmotManager( return TextMessageBundle(outbound = outbound, innerEvent = innerEvent) } + /** + * Build the hidden kind:1200 payload that anchors one agent text stream. + * + * The start payload is what makes a live preview renderable at all: its + * own Marmot app event id goes into [AgentTextStreamKeyContextV1], so a + * receiver can only derive record keys for a stream it has already seen + * announced inside the group. That is also why the anchor is an ordinary + * in-group payload rather than something the broker hands out — the broker + * relays ciphertext and learns nothing. + * + * The returned bundle's `innerEvent.id` IS the `start_event_id`; a caller + * needs it before it can derive the stream's crypto, which is why this + * returns the built payload instead of publishing and forgetting it. + * + * @param brokerCandidates `quic://host:port` endpoints a receiver may try, + * in preference order. Zero is valid — the preview is then unavailable + * and every member still gets the final message. + * @param parentEventId the prompt this stream answers, when there is one. + */ + suspend fun buildAgentStreamStart( + nostrGroupId: HexKey, + streamId: HexKey, + brokerCandidates: List = emptyList(), + parentEventId: HexKey? = null, + persistOwn: Boolean = true, + ): TextMessageBundle { + val template = + com.vitorpamplona.quartz.nip01Core.signers + .eventTemplate(kind = AgentTextStreamStart.KIND, description = "") { + AgentTextStreamStart + .tags(streamId, brokerCandidates, parentEventId = parentEventId) + .forEach { addUnique(it) } + } + val innerEvent = + com.vitorpamplona.quartz.nip59Giftwrap.rumors.RumorAssembler + .assembleRumor(signer.pubKey, template) + // The epoch this went out at is the one the stream's key context binds, + // so remember it the same way an inbound anchor's epoch is remembered. + val epoch = currentEpoch(nostrGroupId) + val outbound = buildGroupMessage(nostrGroupId, innerEvent) + if (persistOwn) persistDecryptedMessage(nostrGroupId, innerEvent.toJson(), epoch) + return TextMessageBundle(outbound = outbound, innerEvent = innerEvent) + } + + /** + * Build the durable kind:9 that closes an agent text stream out. + * + * This is the authoritative message. A receiver that rendered a preview + * compares its own fold against [transcriptHash] / [chunkCount]: agreement + * means it saw exactly the stream the publisher sent, disagreement means + * records were dropped, reordered or injected even though each one opened. + * A receiver that skipped the preview just reads this as normal chat. + */ + suspend fun buildAgentStreamFinal( + nostrGroupId: HexKey, + streamId: HexKey, + transcriptHash: HexKey, + chunkCount: Long, + text: String, + persistOwn: Boolean = true, + ): TextMessageBundle { + val template = + com.vitorpamplona.quartz.nip01Core.signers + .eventTemplate(kind = 9, description = text) { + AgentTextStreamFinal + .tags(streamId, transcriptHash, chunkCount) + .forEach { addUnique(it) } + } + val innerEvent = + com.vitorpamplona.quartz.nip59Giftwrap.rumors.RumorAssembler + .assembleRumor(signer.pubKey, template) + val outbound = buildGroupMessage(nostrGroupId, innerEvent) + if (persistOwn) persistDecryptedMessage(nostrGroupId, innerEvent.toJson()) + return TextMessageBundle(outbound = outbound, innerEvent = innerEvent) + } + + /** + * The record AEAD for one stream in [nostrGroupId]. + * + * The stream secret is the group's own + * `MLS-Exporter("marmot", "agent-text-stream-quic", 32)`, so every member + * of the epoch derives the same one and no key ever crosses the wire. All + * the per-stream separation comes from the key context: change the stream, + * the epoch, the sender or the anchoring kind:1200 event and the record + * key changes with it. + * + * [senderPubKey] is the stream's author, which is not necessarily us — a + * receiver derives the publisher's context, not its own. + */ + fun agentTextStreamCrypto( + nostrGroupId: HexKey, + streamId: ByteArray, + startEventId: ByteArray, + senderPubKey: HexKey = signer.pubKey, + epoch: Long? = null, + ): AgentTextStreamCrypto { + val group = groupManager.getGroup(nostrGroupId) ?: error("not a member of group $nostrGroupId") + return AgentTextStreamCrypto( + streamSecret = group.agentTextStreamSecret(), + context = + AgentTextStreamKeyContextV1( + groupId = group.groupId, + streamId = streamId, + mlsEpoch = epoch ?: group.epoch, + senderId = senderPubKey.hexToByteArray(), + startEventId = startEventId, + ), + ) + } + + /** The group's current MLS epoch, which the stream key context binds. */ + fun currentEpoch(nostrGroupId: HexKey): Long? = groupManager.getGroup(nostrGroupId)?.epoch + /** * Build a kind:5 deletion inner event targeting one or more prior inner * events in the same group. Unsigned rumor (MIP-03); e-tag + k-tag for @@ -907,14 +1024,33 @@ class MarmotManager( suspend fun persistDecryptedMessage( nostrGroupId: HexKey, innerEventJson: String, + /** + * The MLS epoch that delivered this payload, when the caller knows it. + * Only agent text streams read it back — their record key context + * binds the epoch, so a receiver has to derive keys under the epoch + * that carried the stream's anchor rather than the group's current one. + */ + epoch: Long? = null, ) { try { messageStore?.appendMessage(nostrGroupId, innerEventJson) + if (epoch != null) { + Event.fromJsonOrNull(innerEventJson)?.let { messageStore?.recordEpoch(nostrGroupId, it.id, epoch) } + } } catch (e: Exception) { Log.w("MarmotManager", "Failed to persist Marmot message for $nostrGroupId", e) } } + /** Inner event id → delivering MLS epoch, for whatever the store kept. */ + suspend fun storedEpochs(nostrGroupId: HexKey): Map = + try { + messageStore?.loadEpochs(nostrGroupId) ?: emptyMap() + } catch (e: Exception) { + Log.w("MarmotManager", "Failed to read Marmot message epochs for $nostrGroupId", e) + emptyMap() + } + /** * Load all persisted inner event JSONs for a group, in append order. * Returns an empty list if no message store is configured or none exist. diff --git a/marmotQuic/README.md b/marmotQuic/README.md index 333ba2e29a..3f9c1e1837 100644 --- a/marmotQuic/README.md +++ b/marmotQuic/README.md @@ -62,11 +62,23 @@ then: Without the property the cases skip visibly, so an ordinary `./gradlew test` never needs a broker on the machine. +## Using it + +`amy marmot stream` drives the whole feature; the harness's tests 18 and 19 +run it in both directions against MDK. + +```bash +amy marmot stream start GID --broker quic://127.0.0.1:4450 +amy marmot stream send GID --stream-id … --start-event-id … --broker … "hello" +amy marmot stream watch GID --stream-id … +amy marmot stream finish GID --stream-id … --transcript-hash … --chunk-count N "hello" +``` + ## Not done -- Nothing in the app yet mints a kind-1200 start payload, chooses a broker - candidate, or renders a live preview — this is the transport, not the - feature wiring. +- The GUIs do not originate or render a stream yet, which is why the `send` + (`0xF2D2`) and `fanout` (`0xF2D4`) role capabilities stay unadvertised — a + role is a promise to the whole group. - The direct path (`marmot.quic_stream.v1`) is unimplemented. v1 defines no start-payload candidate format for it, so it is only reachable with an endpoint known out of band. diff --git a/marmotQuic/src/jvmAndroid/kotlin/com/vitorpamplona/marmotquic/QuicAgentTextStreamTransport.kt b/marmotQuic/src/jvmAndroid/kotlin/com/vitorpamplona/marmotquic/QuicAgentTextStreamTransport.kt index 82caaad301..5cd46aa81e 100644 --- a/marmotQuic/src/jvmAndroid/kotlin/com/vitorpamplona/marmotquic/QuicAgentTextStreamTransport.kt +++ b/marmotQuic/src/jvmAndroid/kotlin/com/vitorpamplona/marmotquic/QuicAgentTextStreamTransport.kt @@ -24,6 +24,9 @@ import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextSt import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.AgentTextStreamFraming import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.BrokerControlType import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicAlpn +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicException +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicStream +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicTransport import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.QuicBrokerControlEnvelopeV1 import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.QuicEndpointCandidate import com.vitorpamplona.quic.connection.QuicConnection @@ -35,6 +38,7 @@ import com.vitorpamplona.quic.transport.UdpSocket import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.SupervisorJob +import kotlinx.coroutines.delay import kotlinx.coroutines.flow.Flow import kotlinx.coroutines.flow.flow import kotlinx.coroutines.withTimeoutOrNull @@ -175,6 +179,7 @@ private class QuicStreamDelivery( private val stream: QuicStream, private val driver: QuicConnectionDriver, maxPlaintextFrameLen: Long?, + private val flushTimeoutMillis: Long = DEFAULT_FLUSH_TIMEOUT_MILLIS, ) : MarmotQuicStream { private val reader = AgentTextStreamFraming.Reader(maxPlaintextFrameLen) @@ -190,12 +195,45 @@ private class QuicStreamDelivery( } } + /** + * FIN our write side and wait until the peer acknowledges it. + * + * The wait is the point. `enqueue` only puts bytes in the send buffer; the + * driver still has to put them on the wire and the peer still has to ACK + * them. Returning before that and letting the caller [close] tears the + * connection down with records still buffered, and they are simply lost — + * silently, because the publisher already counted them. QUIC only ACKs a + * FIN once everything ahead of it arrived, so `finAcked` is exactly the + * "the broker has all of it" signal. + */ override suspend fun finish() { stream.send.finish() driver.wakeup() + withTimeoutOrNull(flushTimeoutMillis) { + while (!stream.send.finAcked) { + driver.wakeup() + delay(FLUSH_POLL_MILLIS) + } + } } + /** + * Tear down the connection. A caller that wrote records is expected to + * [finish] first; this still gives an unacknowledged FIN a bounded moment + * rather than dropping the tail of a stream on the floor. + */ override suspend fun close() { + if (stream.send.finSent && !stream.send.finAcked) { + withTimeoutOrNull(flushTimeoutMillis) { + while (!stream.send.finAcked) { + driver.wakeup() + delay(FLUSH_POLL_MILLIS) + } + } + } driver.close() } } + +private const val DEFAULT_FLUSH_TIMEOUT_MILLIS = 10_000L +private const val FLUSH_POLL_MILLIS = 20L diff --git a/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicBrokerInteropTest.kt b/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicBrokerInteropTest.kt index 52daaf4d04..7178e50ca4 100644 --- a/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicBrokerInteropTest.kt +++ b/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicBrokerInteropTest.kt @@ -26,6 +26,7 @@ import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextSt import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRecordV1 import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamTranscriptV1 import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.InMemoryAgentTextStreamSequenceStore +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicException import com.vitorpamplona.quic.tls.PermissiveCertificateValidator import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.Dispatchers diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index fad088e64c..c6865b72cf 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -695,11 +695,12 @@ test we have. in-memory `AgentTextStreamSequenceStore` exists; a platform-backed one lands with the transport that needs it. - We still do NOT advertise `send` (`0xF2D2`) or `fanout` (`0xF2D4`). Not for - want of a transport any more — see below — but because nothing in the app yet - originates a stream, and a role we do not serve is worse for the group than a - role we do not claim. A group whose policy requires `send` is refused at join - rather than joined into a state every peer would reject us from. + We still do NOT advertise `send` (`0xF2D2`) or `fanout` (`0xF2D4`) in + KeyPackage capabilities. Everything behind them now works end to end, but the + roles are a promise to a whole group and the GUIs do not yet originate or + render a stream — only the CLI does. A group whose policy requires `send` is + refused at join rather than joined into a state every peer would reject us + from. - **The QUIC transport binding is implemented and verified against MDK's broker.** `transports/quic.md` is a RAW QUIC binding — its own ALPNs @@ -718,8 +719,35 @@ test we have. publisher's transcript hash — plus that the broker keeps rooms apart. Opt in with `-DmarmotQuicBroker=host:port`; it skips visibly without one. - What is left is the application wiring: nothing yet mints a kind-1200 start, - picks a broker candidate, or renders a live preview. The direct path - (`marmot.quic_stream.v1`) is also unimplemented — v1 has no start-payload - candidate format for it, so it is only usable with an out-of-band endpoint. + The direct path (`marmot.quic_stream.v1`) is unimplemented — v1 has no + start-payload candidate format for it, so it is only usable with an + out-of-band endpoint. + +- **The feature is wired end to end, both directions, against MDK.** + `amy marmot stream start|send|watch|finish` mints the kind-1200 anchor, + pushes records through a broker, folds a preview under the receive discipline + (`seq` high-water mark, silent replay discard, gap → unverifiable) and + publishes the authoritative kind-9 carrying the transcript. Harness tests 18 + and 19 run both directions: MDK's `wn stream verify` confirms our transcript + from our own kind-1200 + kind-9, and our subscriber folds MDK's stream to a + transcript hash identical to the one `wn stream send` computed. That equality + is the whole key schedule, key context, AEAD, framing and transcript + construction agreeing with an implementation that is not ours. + + Two defects only that exercise could have found: + + - **The epoch belongs to the stream, not to the clock.** The record key + context binds `mls_epoch`, and we were resolving it as "the group's current + epoch" at each command. A commit landing between the start and the send (or + the watch) put the two sides on different keys and produced an empty + preview. The epoch that DELIVERED the kind-1200 is the stream's, so it is + persisted with the message now (`MarmotMessageStore.recordEpoch`, which + MDK's own storage has as `source_epoch`) and read back by both sides. + + - **`close()` dropped the tail of a stream.** `enqueue` only fills the send + buffer; tearing the connection down before the driver flushed it lost + records silently, because the publisher had already counted them. QUIC ACKs + a FIN only after everything ahead of it arrived, so `finish()` now waits for + `finAcked` and `close()` gives an unacknowledged FIN a bounded moment. This + is why the test passed alone and failed inside a full run. diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamStart.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamStart.kt index 0b0c09ebe3..cb2e5623bf 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamStart.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamStart.kt @@ -35,10 +35,18 @@ import com.vitorpamplona.quartz.nip01Core.core.HexKey * * ``` * ["stream", <32-byte stream id, hex>] + * ["stream-type", "text"] + * ["final-kind", "9"] * ["route", "quic"] (optional; "quic" when absent) + * ["parent", ] (optional) * ["broker", ] (repeatable) * ``` * + * `stream`, `stream-type` and `final-kind` are owned by the feature; + * `route` and `broker` belong to the transport binding, and a client that + * implements `receive` but not raw QUIC may ignore them entirely and wait for + * the final message. + * * The matching END of a stream is an ordinary kind-9 chat carrying * [STREAM_TAG], [STREAM_HASH_TAG] and [STREAM_CHUNKS_TAG]; see * [AgentTextStreamFinal]. @@ -47,33 +55,69 @@ class AgentTextStreamStart( val streamId: HexKey, val route: String, val brokerCandidates: List, + val streamType: String = TYPE_TEXT, + val finalKind: Int = FINAL_KIND_TEXT, + val parentEventId: HexKey? = null, ) { val isQuicRoute: Boolean get() = route == ROUTE_QUIC + /** + * True when this start is one we know how to render live. A `stream-type` + * we don't implement is not an error — the final message still arrives — + * so callers skip the preview rather than rejecting the payload. + */ + val isTextProfile: Boolean get() = streamType == TYPE_TEXT && finalKind == FINAL_KIND_TEXT + + /** + * "Receivers MUST ignore a final payload whose kind does not match the + * start payload's `final-kind`." + */ + fun acceptsFinalKind(kind: Int): Boolean = kind == finalKind + companion object { const val KIND = 1200 const val STREAM_TAG = "stream" + const val STREAM_TYPE_TAG = "stream-type" + const val FINAL_KIND_TAG = "final-kind" const val ROUTE_TAG = "route" + const val PARENT_TAG = "parent" const val BROKER_TAG = "broker" + const val ROUTE_QUIC = "quic" + /** The first — and so far only — stream type. */ + const val TYPE_TEXT = "text" + + /** For `stream-type=text`, `final-kind` MUST be 9. */ + const val FINAL_KIND_TEXT = 9 + fun tags( streamId: HexKey, brokerCandidates: List, route: String = ROUTE_QUIC, + streamType: String = TYPE_TEXT, + finalKind: Int = FINAL_KIND_TEXT, + parentEventId: HexKey? = null, ): Array> = buildList { add(arrayOf(STREAM_TAG, streamId)) + add(arrayOf(STREAM_TYPE_TAG, streamType)) + add(arrayOf(FINAL_KIND_TAG, finalKind.toString())) add(arrayOf(ROUTE_TAG, route)) + if (parentEventId != null) add(arrayOf(PARENT_TAG, parentEventId)) brokerCandidates.forEach { add(arrayOf(BROKER_TAG, it)) } }.toTypedArray() /** * Read the start view from a kind-1200 payload's tags, or null when - * this is not a stream start. A missing `route` means `quic`; a - * missing `stream` tag means the payload is not usable as an anchor at - * all, so it is rejected rather than defaulted. + * this is not a stream start. + * + * A missing `stream` tag means the payload cannot anchor anything, so + * it is rejected rather than defaulted. The rest default to the first + * text profile: an older or terser sender that omits `stream-type` / + * `final-kind` / `route` still describes exactly that profile, and + * refusing it would drop a stream we can render. */ fun fromTags( kind: Int, @@ -82,8 +126,13 @@ class AgentTextStreamStart( if (kind != KIND) return null val streamId = tags.firstOrNull { it.size >= 2 && it[0] == STREAM_TAG }?.get(1) ?: return null val route = tags.firstOrNull { it.size >= 2 && it[0] == ROUTE_TAG }?.get(1) ?: ROUTE_QUIC + val streamType = tags.firstOrNull { it.size >= 2 && it[0] == STREAM_TYPE_TAG }?.get(1) ?: TYPE_TEXT + val finalKind = + tags.firstOrNull { it.size >= 2 && it[0] == FINAL_KIND_TAG }?.get(1)?.toIntOrNull() + ?: FINAL_KIND_TEXT + val parent = tags.firstOrNull { it.size >= 2 && it[0] == PARENT_TAG }?.get(1) val brokers = tags.filter { it.size >= 2 && it[0] == BROKER_TAG }.map { it[1] } - return AgentTextStreamStart(streamId, route, brokers) + return AgentTextStreamStart(streamId, route, brokers, streamType, finalKind, parent) } } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamSubscriber.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamSubscriber.kt new file mode 100644 index 0000000000..1b819d917f --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamSubscriber.kt @@ -0,0 +1,189 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents.agentTextStream + +/** What the subscriber did with one inbound record. */ +enum class RecordOutcome { + /** Folded into the transcript and applied to the preview. */ + Accepted, + + /** At or below the high-water mark. Discarded silently; not stream-fatal. */ + Replay, + + /** Ahead of the high-water mark: records are missing and were not folded. */ + Gap, + + /** Failed its AEAD. Not ours, or altered in flight. */ + Undecryptable, + + /** Belongs to a different stream than the one being rendered. */ + WrongStream, +} + +/** How much a renderer may claim about the preview it is showing. */ +enum class PreviewStatus { + /** Every record so far arrived in order and opened. */ + LIVE, + + /** A gap could not be backfilled, so the transcript hash can never complete. */ + UNVERIFIABLE, + + /** The publisher aborted; there is no durable text coming from this preview. */ + ABORTED, + + /** The publisher signalled that the final MLS message is on its way. */ + FINISHED, +} + +/** + * The receiving half of one agent text stream preview. + * + * Everything here is provisional. The authority is the final kind-9 MLS + * message, and [matchesFinal] is the only thing that turns "we rendered + * something" into "we rendered what the publisher sent" — every record can + * open individually and the stream still be wrong, if one was dropped, + * reordered or injected. + * + * A renderer must show this text as visibly distinct from confirmed content + * until that check passes. + */ +class AgentTextStreamSubscriber( + private val crypto: AgentTextStreamCrypto, +) { + private val builder = StringBuilder() + + /** The stream's rolling transcript over every accepted record. */ + val transcript: AgentTextStreamTranscriptV1 = + AgentTextStreamTranscriptV1.start(crypto.context.streamId, crypto.context.startEventId) + + /** Highest `seq` folded so far; the next accepted record is this plus one. */ + var highWaterMark: Long = 0 + private set + + var status: PreviewStatus = PreviewStatus.LIVE + private set + + /** Provisional answer text: `TextDelta` appended, `Checkpoint` replacing. */ + val previewText: String get() = builder.toString() + + /** Latest `Status` label, for local UI chrome only. Never part of the answer. */ + var latestStatus: String? = null + private set + + /** Latest `ProgressDelta`, for live non-chat progress chrome only. */ + var latestProgress: String? = null + private set + + /** + * True once a gap was seen and not yet backfilled. The transcript is + * incomplete, so it can never be compared against the final message. + */ + private var sawUnbackfilledGap = false + + /** + * Fold one record in, judged against the high-water mark. + * + * Order is not negotiable: `seq` is XORed into the record nonce, so an + * out-of-order fold would also produce a transcript nobody else computes. + * Hence a record ahead of the mark is reported rather than applied — the + * caller backfills it from a replay source, or lives with an unverifiable + * preview and waits for the final message. + */ + fun accept(record: AgentTextStreamRecordV1): RecordOutcome { + if (!record.streamId.contentEquals(crypto.context.streamId)) return RecordOutcome.WrongStream + + // "A record whose seq is at or below the high-water mark — for example, + // a record a broker replays on reconnect — MUST be discarded silently + // without affecting the stream." + if (record.seq <= highWaterMark) return RecordOutcome.Replay + + if (record.seq > highWaterMark + 1) { + sawUnbackfilledGap = true + if (status == PreviewStatus.LIVE) status = PreviewStatus.UNVERIFIABLE + return RecordOutcome.Gap + } + + // Opening before advancing anything: a record that fails its AEAD must + // leave the stream exactly as it was, or a single injected frame could + // burn the sequence value the real record needs. + val opened = crypto.openOrNull(record) ?: return RecordOutcome.Undecryptable + + highWaterMark = record.seq + transcript.append(opened) + + when (opened.recordType) { + AgentTextStreamRecordV1.TYPE_TEXT_DELTA -> builder.append(opened.frame.decodeToString()) + + // "Receivers that support checkpoints replace the provisional + // preview text with the checkpoint plaintext, then continue + // applying later TextDelta records." + AgentTextStreamRecordV1.TYPE_CHECKPOINT -> { + builder.setLength(0) + builder.append(opened.frame.decodeToString()) + } + + AgentTextStreamRecordV1.TYPE_STATUS -> latestStatus = opened.frame.decodeToString() + + AgentTextStreamRecordV1.TYPE_PROGRESS_DELTA -> latestProgress = opened.frame.decodeToString() + + AgentTextStreamRecordV1.TYPE_ABORT -> { + // "Receivers remove or mark the preview as cancelled and wait + // for later durable events." Nothing here becomes chat text. + builder.setLength(0) + status = PreviewStatus.ABORTED + } + + AgentTextStreamRecordV1.TYPE_FINAL_NOTICE -> + if (status == PreviewStatus.LIVE) status = PreviewStatus.FINISHED + + // An unknown record type still counts toward the transcript — the + // hash covers the stream the publisher sent, not the subset we + // happen to understand — but contributes nothing to the preview. + else -> Unit + } + + // A backfill that closes the last gap makes the preview whole again. + if (sawUnbackfilledGap && status == PreviewStatus.UNVERIFIABLE) { + sawUnbackfilledGap = false + status = PreviewStatus.LIVE + } + + return RecordOutcome.Accepted + } + + /** + * Does what we folded match what the final kind-9 says the publisher sent? + * + * A disagreement means records were dropped, reordered or injected even + * though each one opened, so the preview must be discarded in favour of + * the final message. A preview already known to be incomplete answers + * false without comparing: it cannot have folded the stream, whatever its + * running hash happens to be. + */ + fun matchesFinal( + transcriptHash: ByteArray, + chunkCount: Long, + ): Boolean { + if (sawUnbackfilledGap) return false + if (status == PreviewStatus.ABORTED) return false + return transcript.chunkCount == chunkCount && transcript.hash.contentEquals(transcriptHash) + } +} diff --git a/marmotQuic/src/commonMain/kotlin/com/vitorpamplona/marmotquic/MarmotQuicStreamTransport.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/transport/MarmotQuicStreamTransport.kt similarity index 98% rename from marmotQuic/src/commonMain/kotlin/com/vitorpamplona/marmotquic/MarmotQuicStreamTransport.kt rename to quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/transport/MarmotQuicStreamTransport.kt index 2bd759570a..7a9d627eab 100644 --- a/marmotQuic/src/commonMain/kotlin/com/vitorpamplona/marmotquic/MarmotQuicStreamTransport.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/transport/MarmotQuicStreamTransport.kt @@ -18,7 +18,7 @@ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -package com.vitorpamplona.marmotquic +package com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRecordV1 import kotlinx.coroutines.flow.Flow diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt index 05440a35b7..e2073dc765 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt @@ -68,4 +68,27 @@ interface MarmotMessageStore { * @param nostrGroupId hex-encoded Nostr group ID */ suspend fun delete(nostrGroupId: String) + + /** + * Remember which MLS epoch delivered [innerEventId]. + * + * Almost nothing needs this — the inner event is the message. Agent text + * streams do: their record key context binds `mls_epoch`, so a receiver + * that derives keys for a stream must use the epoch that carried the + * stream's kind:1200 anchor, not whatever epoch the group has reached by + * the time someone watches. A commit landing in between would otherwise + * silently produce a different key and an empty preview. + * + * Optional: a store that does not keep it simply cannot render a live + * preview for a stream anchored in an older epoch, which is a degraded + * feature and not a broken group. + */ + suspend fun recordEpoch( + nostrGroupId: String, + innerEventId: String, + epoch: Long, + ) = Unit + + /** Inner event id → the MLS epoch that delivered it, for what was recorded. */ + suspend fun loadEpochs(nostrGroupId: String): Map = emptyMap() } diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AgentTextStreamSubscriberTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AgentTextStreamSubscriberTest.kt new file mode 100644 index 0000000000..723094c391 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AgentTextStreamSubscriberTest.kt @@ -0,0 +1,242 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamCrypto +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamKeyContextV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamPublisher +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRecordV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamSubscriber +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.InMemoryAgentTextStreamSequenceStore +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.PreviewStatus +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.RecordOutcome +import kotlinx.coroutines.runBlocking +import org.junit.Assert.assertEquals +import org.junit.Assert.assertFalse +import org.junit.Assert.assertTrue +import org.junit.Test + +/** + * The receive half of `transports/quic.md`, which is where a preview either + * stays honest or quietly stops being one. + * + * The rules it has to hold: `seq` is accepted at most once and never folded + * out of order; a replayed record — which a broker WILL send after a + * reconnect, from the start of its replay window — is discarded silently and + * is never stream-fatal; a gap that cannot be backfilled makes the preview + * unverifiable, because the transcript hash can no longer be completed and + * therefore can no longer be checked against the final MLS message. + */ +class AgentTextStreamSubscriberTest { + private val streamId = ByteArray(32) { 0x31 } + private val startEventId = ByteArray(32) { 0x32 } + private val secret = ByteArray(32) { 0x33 } + + private val crypto = + AgentTextStreamCrypto( + secret, + AgentTextStreamKeyContextV1( + groupId = ByteArray(32) { 0x34 }, + streamId = streamId, + mlsEpoch = 11, + senderId = ByteArray(32) { 0x35 }, + startEventId = startEventId, + ), + ) + + /** Sealed records 1..n of a stream, as the publisher would have sent them. */ + private fun sealedRecords(vararg texts: String): List = + runBlocking { + val publisher = AgentTextStreamPublisher.open(crypto, InMemoryAgentTextStreamSequenceStore()) + texts.map { publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, it.encodeToByteArray()) } + } + + private fun subscriber() = AgentTextStreamSubscriber(crypto) + + @Test + fun textDeltasConcatenateIntoTheProvisionalPreview() { + val sub = subscriber() + sealedRecords("the ", "quick ", "brown fox").forEach { + assertEquals(RecordOutcome.Accepted, sub.accept(it)) + } + assertEquals("the quick brown fox", sub.previewText) + assertEquals(PreviewStatus.LIVE, sub.status) + assertEquals(3L, sub.transcript.chunkCount) + } + + @Test + fun aReplayedRecordIsDiscardedSilentlyAndChangesNothing() { + val records = sealedRecords("a", "b") + val sub = subscriber() + records.forEach { sub.accept(it) } + val hashBefore = sub.transcript.hash.toList() + + // A broker replays its backlog from the start of the window on + // reconnect. Every one of these is at or below the high-water mark. + records.forEach { + assertEquals( + "a replayed record is never stream-fatal", + RecordOutcome.Replay, + sub.accept(it), + ) + } + + assertEquals("ab", sub.previewText) + assertEquals(2L, sub.transcript.chunkCount) + assertEquals(hashBefore, sub.transcript.hash.toList()) + assertEquals(PreviewStatus.LIVE, sub.status) + } + + @Test + fun aGapMakesThePreviewUnverifiableRatherThanWrong() { + val records = sealedRecords("one", "two", "three") + val sub = subscriber() + sub.accept(records[0]) + + // seq 2 never arrives. Folding seq 3 anyway would produce a transcript + // hash that cannot match the publisher's, so the preview is marked + // instead — the final MLS message is still authoritative. + assertEquals(RecordOutcome.Gap, sub.accept(records[2])) + assertEquals(PreviewStatus.UNVERIFIABLE, sub.status) + assertEquals("one", sub.previewText) + assertEquals(1L, sub.transcript.chunkCount) + } + + @Test + fun aGapCanBeBackfilledBeforeItIsFatal() { + val records = sealedRecords("one", "two", "three") + val sub = subscriber() + sub.accept(records[0]) + sub.accept(records[2]) // gap + assertEquals(PreviewStatus.UNVERIFIABLE, sub.status) + + // The binding says a receiver backfills the missing records from a + // replay source; a stream that completes is verifiable again. + assertEquals(RecordOutcome.Accepted, sub.accept(records[1])) + assertEquals(RecordOutcome.Accepted, sub.accept(records[2])) + assertEquals("onetwothree", sub.previewText) + assertEquals(PreviewStatus.LIVE, sub.status) + } + + @Test + fun aRecordThatDoesNotOpenIsRejectedWithoutTouchingTheStream() { + val records = sealedRecords("one", "two") + val sub = subscriber() + sub.accept(records[0]) + + val tampered = records[1].frame.copyOf().also { it[0] = (it[0].toInt() xor 0xff).toByte() } + assertEquals(RecordOutcome.Undecryptable, sub.accept(records[1].copyWithFrame(tampered))) + + assertEquals("one", sub.previewText) + assertEquals(1L, sub.transcript.chunkCount) + assertEquals( + "a record that fails its AEAD never advances the high-water mark", + 1L, + sub.highWaterMark, + ) + } + + @Test + fun aRecordForAnotherStreamIsRefused() { + val sub = subscriber() + val alien = AgentTextStreamRecordV1(ByteArray(32) { 0x66 }, seq = 1, recordType = 1, frame = ByteArray(32)) + assertEquals(RecordOutcome.WrongStream, sub.accept(alien)) + assertEquals(0L, sub.highWaterMark) + } + + @Test + fun onlyTextDeltasAppendToThePreview() { + val publisher = runBlocking { AgentTextStreamPublisher.open(crypto, InMemoryAgentTextStreamSequenceStore()) } + val sub = subscriber() + runBlocking { + sub.accept(publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "answer".encodeToByteArray())) + // Progress and status are agent chrome. The spec is explicit that + // they MUST NOT reach preview text, notifications, indexes or + // automation input. + sub.accept(publisher.publish(AgentTextStreamRecordV1.TYPE_PROGRESS_DELTA, "reading files".encodeToByteArray())) + sub.accept(publisher.publish(AgentTextStreamRecordV1.TYPE_STATUS, "thinking".encodeToByteArray())) + } + assertEquals("answer", sub.previewText) + assertEquals("thinking", sub.latestStatus) + assertEquals("reading files", sub.latestProgress) + // Every accepted record still folds into the transcript — the hash + // covers the stream, not just the text. + assertEquals(3L, sub.transcript.chunkCount) + } + + @Test + fun aCheckpointReplacesThePreviewAndLaterDeltasAppendToIt() { + val publisher = runBlocking { AgentTextStreamPublisher.open(crypto, InMemoryAgentTextStreamSequenceStore()) } + val sub = subscriber() + runBlocking { + sub.accept(publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "draft".encodeToByteArray())) + sub.accept(publisher.publish(AgentTextStreamRecordV1.TYPE_CHECKPOINT, "the whole answer".encodeToByteArray())) + sub.accept(publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, " so far".encodeToByteArray())) + } + assertEquals("the whole answer so far", sub.previewText) + } + + @Test + fun anAbortCancelsThePreviewWithoutProducingText() { + val publisher = runBlocking { AgentTextStreamPublisher.open(crypto, InMemoryAgentTextStreamSequenceStore()) } + val sub = subscriber() + runBlocking { + sub.accept(publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "half an ans".encodeToByteArray())) + sub.accept(publisher.publish(AgentTextStreamRecordV1.TYPE_ABORT, ByteArray(0))) + } + assertEquals(PreviewStatus.ABORTED, sub.status) + assertTrue(sub.previewText.isEmpty()) + } + + @Test + fun theFinalMessageIsWhatDecidesWhetherWeSawTheRealStream() { + val records = sealedRecords("a", "b", "c") + val sub = subscriber() + records.forEach { sub.accept(it) } + + val publisherSide = runBlocking { AgentTextStreamPublisher.open(crypto, InMemoryAgentTextStreamSequenceStore()) } + runBlocking { listOf("a", "b", "c").forEach { publisherSide.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, it.encodeToByteArray()) } } + + assertTrue( + sub.matchesFinal(publisherSide.transcript.hash, publisherSide.transcript.chunkCount), + ) + assertFalse( + "a hash that disagrees means we saw a different stream, even though every record opened", + sub.matchesFinal(ByteArray(32), 3), + ) + assertFalse( + "the same hash with a different count is still a different stream", + sub.matchesFinal(publisherSide.transcript.hash, 2), + ) + } + + @Test + fun anUnverifiablePreviewNeverClaimsToMatchAFinal() { + val records = sealedRecords("a", "b", "c") + val sub = subscriber() + sub.accept(records[0]) + sub.accept(records[2]) + assertEquals(PreviewStatus.UNVERIFIABLE, sub.status) + // Even a hash that happens to agree cannot rehabilitate it: the + // receiver knows it is missing a record it never folded. + assertFalse(sub.matchesFinal(sub.transcript.hash, sub.transcript.chunkCount)) + } +} From f24cb95902fe29e38b9cb3f65e17b20a6926ffc4 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 13:32:30 +0000 Subject: [PATCH 32/79] feat(marmot): advertise every agent-stream role and render previews on Android MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Our leaf advertised `receive` only, which was honest while nothing could originate a stream and is not any more. It now advertises `receive`, `send` and `fanout` — the same set MDK puts on every KeyPackage it publishes — so a group requiring any of them admits us. A capability is a claim about what the client supports, not a duty to stream: a member that never originates one is a quiet member, not a broken one. The role-gate test asserted the old behaviour, so it was testing our own capability set rather than the gate. It now builds a deliberately reduced leaf and checks that THAT is refused, which keeps working whatever we go on to advertise; a second case pins the new fact that we fill every role the profile defines. `MarmotAgentStreamWatcher` in commons follows the newest kind:1200 in a group, folds the QUIC records behind it under the receive discipline, and settles the result against the durable kind:9 — confirmed when the transcript agrees, dropped when it does not, because a disagreement means we rendered something the publisher never sent. Resolving the final message lives here rather than in the UI so a front end only has to say "the feed moved", and so the whole decision is testable without a UI. Android shows it as an italic, labelled row between the transcript and the composer. Provisional content has to look provisional: preview text is not durable history until the final message vouches for it, and the row disappears the moment it is confirmed or contradicted. Progress and status records render as separate chrome, never as answer text, which is what the spec requires of them. Every failure path ends as "no preview" rather than as a broken group: no stream, no broker candidate, an unreachable broker, an unimplemented stream type, or a platform with no QUIC at all. `receive` explicitly does not require the QUIC data plane. The desktop app has no Marmot chat screen to render into — its chat UI is NIP-17 only — so there is nothing to wire there yet. The watcher is in commons and speaks only quartz's transport port, so desktop inherits it the day that screen exists. Interop unchanged at 19 of 19 with all three roles advertised. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- amethyst/build.gradle.kts | 4 + .../vitorpamplona/amethyst/model/Account.kt | 21 ++ .../marmotGroup/AgentStreamPreviewBanner.kt | 112 ++++++ .../chats/marmotGroup/MarmotGroupChatView.kt | 31 ++ .../marmot/MarmotAgentStreamWatcher.kt | 257 +++++++++++++ .../marmot/MarmotAgentStreamWatcherTest.kt | 337 ++++++++++++++++++ marmotQuic/README.md | 7 +- quartz/plans/2026-09-08-marmot-spec-resync.md | 24 +- .../quartz/marmot/mls/group/MlsGroup.kt | 14 + .../CurrentProfileGroupFactoryTest.kt | 9 +- .../mls/group/CurrentProfileWelcomeTest.kt | 81 ++++- 11 files changed, 880 insertions(+), 17 deletions(-) create mode 100644 amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/AgentStreamPreviewBanner.kt create mode 100644 commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotAgentStreamWatcher.kt create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotAgentStreamWatcherTest.kt diff --git a/amethyst/build.gradle.kts b/amethyst/build.gradle.kts index 29d5e686d9..6cf575a8ce 100644 --- a/amethyst/build.gradle.kts +++ b/amethyst/build.gradle.kts @@ -402,6 +402,10 @@ dependencies { implementation(project(":quartz")) implementation(project(":commons")) implementation(project(":nestsClient")) + // Agent text stream previews: the raw-QUIC binding plus the QUIC + // stack under it (for the certificate validator it requires). + implementation(project(":marmotQuic")) + implementation(project(":quic")) implementation(project(":nappletHost")) // Compose Multiplatform resources runtime, so app-side screens that share a // string with a commons renderer can read commons' generated `Res` directly diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt index b9575826f1..d9f9dcb97b 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt @@ -175,6 +175,7 @@ import com.vitorpamplona.amethyst.ui.actions.NewMessageTagger import com.vitorpamplona.amethyst.ui.navigation.bottombars.BottomBarEntry import com.vitorpamplona.amethyst.ui.navigation.bottombars.NavBarItem import com.vitorpamplona.amethyst.ui.screen.loggedIn.EventProcessor +import com.vitorpamplona.marmotquic.QuicAgentTextStreamTransport import com.vitorpamplona.quartz.buzz.threading.buzzThread import com.vitorpamplona.quartz.buzz.threading.buzzThreadReply import com.vitorpamplona.quartz.buzz.threading.buzzThreadRoot @@ -204,6 +205,7 @@ import com.vitorpamplona.quartz.experimental.profileGallery.fromEvent import com.vitorpamplona.quartz.experimental.profileGallery.hash import com.vitorpamplona.quartz.experimental.profileGallery.image import com.vitorpamplona.quartz.experimental.profileGallery.mimeType +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicTransport import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageEvent import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore import com.vitorpamplona.quartz.nip01Core.core.Address @@ -340,6 +342,7 @@ import com.vitorpamplona.quartz.utils.RandomInstance import com.vitorpamplona.quartz.utils.TimeUtils import com.vitorpamplona.quartz.utils.ciphers.AESGCM import com.vitorpamplona.quartz.utils.containsAny +import com.vitorpamplona.quic.tls.JdkCertificateValidator import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.Dispatchers @@ -953,6 +956,24 @@ class Account( ) } + /** + * Raw QUIC for agent text stream previews (`transports/quic.md`). + * + * Only the live preview needs it. A device that cannot open a QUIC + * connection still participates fully — it reads every stream's + * authoritative kind:9 like ordinary chat — which is why this is a + * separate optional piece rather than part of [marmotManager]. + */ + val marmotStreamTransport: MarmotQuicTransport by lazy { + QuicAgentTextStreamTransport( + parentScope = scope, + // Preview brokers are commonly self-signed and the binding expects + // that; the platform trust store is still the default answer, and + // a deployment that pins does it here. + certificateValidator = JdkCertificateValidator(), + ) + } + val paymentTargetsState = NipA3PaymentTargetsState(signer, cache, scope, settings) val bolt12OfferList = Bolt12OfferListState(signer, cache, scope, settings) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/AgentStreamPreviewBanner.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/AgentStreamPreviewBanner.kt new file mode 100644 index 0000000000..e561072f7a --- /dev/null +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/AgentStreamPreviewBanner.kt @@ -0,0 +1,112 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup + +import androidx.compose.animation.AnimatedVisibility +import androidx.compose.foundation.background +import androidx.compose.foundation.layout.Column +import androidx.compose.foundation.layout.Row +import androidx.compose.foundation.layout.fillMaxWidth +import androidx.compose.foundation.layout.padding +import androidx.compose.foundation.shape.RoundedCornerShape +import androidx.compose.material3.MaterialTheme +import androidx.compose.material3.Text +import androidx.compose.runtime.Composable +import androidx.compose.ui.Alignment +import androidx.compose.ui.Modifier +import androidx.compose.ui.draw.clip +import androidx.compose.ui.text.font.FontStyle +import androidx.compose.ui.unit.dp +import com.vitorpamplona.amethyst.commons.marmot.AgentStreamPreview +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.PreviewStatus + +/** + * The live agent-preview row, shown between the transcript and the composer. + * + * The whole point of this row is that it is NOT the transcript. Preview text + * is provisional until the durable kind:9 lands and its transcript hash agrees + * with what we folded — every record can open individually and the stream + * still be wrong, if one was dropped, reordered or injected. So it renders in + * italic on a tinted surface with an explicit label, and it disappears the + * moment the real message arrives (confirmed) or is contradicted (dropped). + * + * `ProgressDelta` and `Status` records never reach [AgentStreamPreview.text] — + * the spec keeps them out of preview text, notifications, indexes and + * automation input — so they render here only as a separate, quieter line. + */ +@Composable +fun AgentStreamPreviewBanner( + preview: AgentStreamPreview?, + modifier: Modifier = Modifier, +) { + // An aborted preview produces no durable text at all: the publisher + // withdrew it, so there is nothing honest left to show. + val visible = preview != null && preview.status != PreviewStatus.ABORTED && !preview.isConfirmed + + AnimatedVisibility(visible = visible) { + if (preview == null) return@AnimatedVisibility + Column( + modifier = + modifier + .fillMaxWidth() + .padding(horizontal = 10.dp, vertical = 4.dp) + .clip(RoundedCornerShape(8.dp)) + .background(MaterialTheme.colorScheme.surfaceVariant) + .padding(horizontal = 10.dp, vertical = 6.dp), + ) { + Row(verticalAlignment = Alignment.CenterVertically) { + Text( + text = + when (preview.status) { + PreviewStatus.UNVERIFIABLE -> "Live preview (incomplete)" + else -> "Live preview" + }, + style = MaterialTheme.typography.labelSmall, + color = MaterialTheme.colorScheme.onSurfaceVariant, + ) + preview.statusLabel?.let { + Text( + text = " · $it", + style = MaterialTheme.typography.labelSmall, + color = MaterialTheme.colorScheme.onSurfaceVariant, + ) + } + } + + if (preview.text.isNotEmpty()) { + Text( + text = preview.text, + style = MaterialTheme.typography.bodyMedium, + fontStyle = FontStyle.Italic, + color = MaterialTheme.colorScheme.onSurfaceVariant, + ) + } + + preview.progressLabel?.let { + Text( + text = it, + style = MaterialTheme.typography.labelSmall, + color = MaterialTheme.colorScheme.onSurfaceVariant, + ) + } + } + } +} diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt index 60cd8649fc..6075939f97 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt @@ -44,8 +44,10 @@ import androidx.compose.ui.Modifier import androidx.compose.ui.graphics.Color import androidx.compose.ui.platform.LocalContext import androidx.compose.ui.unit.dp +import androidx.lifecycle.compose.collectAsStateWithLifecycle import androidx.lifecycle.viewmodel.compose.viewModel import com.vitorpamplona.amethyst.R +import com.vitorpamplona.amethyst.commons.marmot.MarmotAgentStreamWatcher import com.vitorpamplona.amethyst.commons.resources.Res import com.vitorpamplona.amethyst.commons.resources.marmot_group_default_name import com.vitorpamplona.amethyst.ui.actions.MentionPreservingInputTransformation @@ -76,6 +78,7 @@ import com.vitorpamplona.quartz.nip01Core.core.HexKey import kotlinx.collections.immutable.ImmutableList import kotlinx.collections.immutable.persistentListOf import kotlinx.coroutines.Dispatchers +import kotlinx.coroutines.flow.MutableStateFlow import kotlinx.coroutines.launch @Composable @@ -120,6 +123,32 @@ fun MarmotGroupChatView( } } + // The live agent-preview watcher. It follows the newest kind:1200 in the + // group and folds the QUIC records behind it; a group with no stream, no + // broker candidate or no reachable broker simply never shows a preview, + // and the durable kind:9 still arrives as ordinary chat either way. + val marmot = accountViewModel.account.marmotManager + val streamScope = rememberCoroutineScope() + val streamWatcher = + remember(nostrGroupId, marmot) { + marmot?.let { + MarmotAgentStreamWatcher(it, accountViewModel.account.marmotStreamTransport, streamScope) + } + } + val streamPreview by (streamWatcher?.preview ?: remember { MutableStateFlow(null) }).collectAsStateWithLifecycle() + + // Re-check on every feed change: a kind:1200 arrives as an ordinary group + // message, so "the feed moved" is exactly when a new stream may have been + // anchored. watchLatest is idempotent for a stream already being followed. + val feedState by feedViewModel.feedState.feedContent.collectAsStateWithLifecycle() + LaunchedEffect(feedState, streamWatcher) { + streamWatcher?.watchLatest(nostrGroupId) + } + + DisposableEffect(streamWatcher) { + onDispose { streamWatcher?.stop() } + } + Column(Modifier.fillMaxHeight()) { Column( modifier = @@ -137,6 +166,8 @@ fun MarmotGroupChatView( ) } + AgentStreamPreviewBanner(streamPreview) + Spacer(modifier = DoubleVertSpacer) MarmotGroupMessageComposer( diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotAgentStreamWatcher.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotAgentStreamWatcher.kt new file mode 100644 index 0000000000..3b4a1e1381 --- /dev/null +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotAgentStreamWatcher.kt @@ -0,0 +1,257 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamFinal +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamStart +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamSubscriber +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.PreviewStatus +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicTransport +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.utils.Log +import kotlinx.coroutines.CoroutineScope +import kotlinx.coroutines.Job +import kotlinx.coroutines.flow.MutableStateFlow +import kotlinx.coroutines.flow.StateFlow +import kotlinx.coroutines.flow.asStateFlow +import kotlinx.coroutines.launch +import kotlinx.coroutines.sync.Mutex +import kotlinx.coroutines.sync.withLock + +/** + * What a front end renders for one live agent text stream. + * + * [isConfirmed] is the only thing that licenses showing this as ordinary + * content. Until the durable kind:9 lands and its transcript matches what we + * folded, this is provisional and a renderer MUST make it visibly distinct — + * every record can open individually and the stream still be wrong, if one was + * dropped, reordered or injected. + */ +class AgentStreamPreview( + val streamId: HexKey, + val startEventId: HexKey, + /** The account that anchored the stream — not necessarily the group's agent. */ + val author: HexKey, + val text: String, + val status: PreviewStatus, + /** Latest `Status` label, for chrome. Never part of the answer text. */ + val statusLabel: String? = null, + /** Latest `ProgressDelta`, for chrome. Never part of the answer text. */ + val progressLabel: String? = null, + val isConfirmed: Boolean = false, +) + +/** + * Watches one Marmot group for an agent text stream and exposes it as UI state. + * + * The live preview is a progressive enhancement, and every failure here is + * meant to look like "no preview" rather than like a broken group: a group + * with no broker candidate, a candidate that will not connect, a platform with + * no QUIC at all, or a stream type we do not implement all end the same way — + * the group still works and the final kind:9 still arrives as normal chat. + * + * [transport] is null on a platform that cannot open a raw QUIC connection. + * That is a supported configuration, not a degraded one: `receive` explicitly + * does not require implementing the QUIC data plane. + */ +class MarmotAgentStreamWatcher( + private val marmot: MarmotManager, + private val transport: MarmotQuicTransport?, + private val scope: CoroutineScope, +) { + private val mutable = MutableStateFlow(null) + val preview: StateFlow = mutable.asStateFlow() + + private val mutex = Mutex() + private var job: Job? = null + private var watchingStreamId: HexKey? = null + private var subscriber: AgentTextStreamSubscriber? = null + + /** + * Start (or keep) watching the newest agent text stream in [nostrGroupId]. + * + * Idempotent: calling it again for a stream already being watched does + * nothing, so a front end can call it on every feed update. + */ + suspend fun watchLatest(nostrGroupId: HexKey) { + // Resolve first: the durable message may already be in the log (a + // catch-up sync delivers the whole stream at once), and a preview we + // can no longer improve should be settled before we open a socket. + resolveAgainstStoredFinal(nostrGroupId) + + if (transport == null) return + val anchor = findLatestStart(nostrGroupId) ?: return + val (startEvent, start) = anchor + + // A stream type or route we do not implement is not an error: ignore + // the live route and let the final message do its job. + if (!start.isTextProfile || !start.isQuicRoute || start.brokerCandidates.isEmpty()) return + + mutex.withLock { + if (watchingStreamId == start.streamId) return@withLock + job?.cancel() + watchingStreamId = start.streamId + mutable.value = null + job = scope.launch { follow(nostrGroupId, startEvent, start) } + } + } + + /** + * A durable kind:9 closed a stream out. Confirms the preview when our fold + * agrees with it, and drops the preview when it does not — a disagreement + * means we rendered something the publisher did not send, so the durable + * message is the only thing that should remain on screen. + */ + fun onFinal( + streamId: HexKey, + transcriptHash: HexKey, + chunkCount: Long, + ) { + val current = mutable.value ?: return + if (!current.streamId.equals(streamId, ignoreCase = true)) return + val folded = subscriber + val matches = folded != null && folded.matchesFinal(transcriptHash.hexToByteArray(), chunkCount) + mutable.value = if (matches) AgentStreamPreviewCopy.confirmed(current) else null + if (!matches) { + Log.d("MarmotAgentStreamWatcher") { + "stream ${streamId.take(8)}… did not match its final message — dropping the preview" + } + } + } + + /** + * Apply the durable kind:9 for the stream being previewed, if the group's + * log already holds it. + * + * A front end only has to say "the feed moved"; deciding whether a preview + * is confirmed, contradicted or still pending is this class's job, and + * keeping it here is what makes it testable without a UI. + */ + private suspend fun resolveAgainstStoredFinal(nostrGroupId: HexKey) { + val current = mutable.value ?: return + for (line in marmot.loadStoredMessages(nostrGroupId)) { + val parsed = Event.fromJsonOrNull(line) ?: continue + if (parsed.kind != AgentTextStreamStart.FINAL_KIND_TEXT) continue + val final = AgentTextStreamFinal.fromTags(parsed.tags) ?: continue + if (!final.streamId.equals(current.streamId, ignoreCase = true)) continue + onFinal(final.streamId, final.transcriptHash, final.chunkCount) + return + } + } + + /** Stop watching and clear the preview. */ + fun stop() { + job?.cancel() + job = null + watchingStreamId = null + subscriber = null + mutable.value = null + } + + private suspend fun follow( + nostrGroupId: HexKey, + startEvent: Event, + start: AgentTextStreamStart, + ) { + val quic = transport ?: return + // The epoch that DELIVERED the anchor, not the group's current one — + // the record key context binds it, and a commit landing in between + // would otherwise derive a key nobody else is using. + val epoch = marmot.storedEpochs(nostrGroupId)[startEvent.id] + val crypto = + try { + marmot.agentTextStreamCrypto( + nostrGroupId = nostrGroupId, + streamId = start.streamId.hexToByteArray(), + startEventId = startEvent.id.hexToByteArray(), + senderPubKey = startEvent.pubKey, + epoch = epoch, + ) + } catch (e: Exception) { + Log.w("MarmotAgentStreamWatcher", "cannot derive stream keys for $nostrGroupId", e) + return + } + + val folding = AgentTextStreamSubscriber(crypto) + subscriber = folding + + // "A receiver tries advertised candidates in listed order"; the first + // that yields the matching stream wins, and one that fails is simply + // skipped. + for (candidate in start.brokerCandidates) { + val stream = + try { + quic.subscribe(candidate, start.streamId.hexToByteArray(), startEvent.id.hexToByteArray()) + } catch (e: Exception) { + Log.d("MarmotAgentStreamWatcher") { "candidate $candidate unusable: ${e.message}" } + continue + } + try { + stream.incoming().collect { record -> + folding.accept(record) + mutable.value = + AgentStreamPreview( + streamId = start.streamId, + startEventId = startEvent.id, + author = startEvent.pubKey, + text = folding.previewText, + status = folding.status, + statusLabel = folding.latestStatus, + progressLabel = folding.latestProgress, + isConfirmed = false, + ) + } + } catch (e: Exception) { + Log.d("MarmotAgentStreamWatcher") { "stream from $candidate ended: ${e.message}" } + } finally { + runCatching { stream.close() } + } + return + } + } + + /** Newest kind:1200 in the group's decrypted log, with its own event. */ + private suspend fun findLatestStart(nostrGroupId: HexKey): Pair? { + var best: Pair? = null + for (line in marmot.loadStoredMessages(nostrGroupId)) { + val parsed = Event.fromJsonOrNull(line) ?: continue + val start = AgentTextStreamStart.fromTags(parsed.kind, parsed.tags) ?: continue + if (best == null || parsed.createdAt >= best.first.createdAt) best = parsed to start + } + return best + } +} + +private object AgentStreamPreviewCopy { + fun confirmed(p: AgentStreamPreview) = + AgentStreamPreview( + streamId = p.streamId, + startEventId = p.startEventId, + author = p.author, + text = p.text, + status = p.status, + statusLabel = p.statusLabel, + progressLabel = p.progressLabel, + isConfirmed = true, + ) +} diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotAgentStreamWatcherTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotAgentStreamWatcherTest.kt new file mode 100644 index 0000000000..ca6a582a5d --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotAgentStreamWatcherTest.kt @@ -0,0 +1,337 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamPublisher +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRecordV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.InMemoryAgentTextStreamSequenceStore +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.PreviewStatus +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicException +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicStream +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicTransport +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore +import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData +import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.CompletableDeferred +import kotlinx.coroutines.flow.Flow +import kotlinx.coroutines.flow.MutableSharedFlow +import kotlinx.coroutines.flow.first +import kotlinx.coroutines.runBlocking +import kotlinx.coroutines.withTimeout +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertNotNull +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * The front end's half of an agent text stream: notice the kind:1200 that + * arrived in a group, render the live preview it points at, and hand back to + * the durable kind:9 when it lands. + * + * Everything the renderer needs to be honest is decided here — whether the + * preview may be shown as confirmed, and whether it turned out to be the + * stream the publisher actually sent. + */ +class MarmotAgentStreamWatcherTest { + private val nostrGroupId = "c".repeat(64) + + /** A transport whose records the test pushes by hand. */ + private class FakeTransport : MarmotQuicTransport { + val records = MutableSharedFlow(replay = 32) + val subscribed = CompletableDeferred() + var failEveryCandidate = false + + override suspend fun publish( + candidate: String, + streamId: ByteArray, + startEventId: ByteArray, + ): MarmotQuicStream = error("the watcher never publishes") + + override suspend fun subscribe( + candidate: String, + streamId: ByteArray, + startEventId: ByteArray, + ): MarmotQuicStream { + if (failEveryCandidate) { + throw MarmotQuicException(MarmotQuicException.Kind.HandshakeFailed, "no route to $candidate") + } + if (!subscribed.isCompleted) subscribed.complete(candidate) + return object : MarmotQuicStream { + override suspend fun send(record: AgentTextStreamRecordV1) = error("read only") + + override fun incoming(): Flow = records + + override suspend fun finish() = Unit + + override suspend fun close() = Unit + } + } + } + + private fun manager() = + MarmotManager( + NostrSignerInternal(KeyPair()), + WatcherStateStore(), + WatcherMessageStore(), + WatcherBundleStore(), + ) + + private suspend fun aGroupWithAStream( + manager: MarmotManager, + brokers: List = listOf("quic://broker.invalid:4450"), + ): Pair { + manager.createGroup( + nostrGroupId, + MarmotGroupData(nostrGroupId = nostrGroupId, name = "stream group", relays = listOf("wss://relay.invalid")), + ) + val streamId = "a".repeat(64) + val start = manager.buildAgentStreamStart(nostrGroupId, streamId, brokers) + return streamId to start.innerEvent.id + } + + @Test + fun aPreviewAppearsAsRecordsArriveAndIsNeverShownAsConfirmed() = + runBlocking { + val manager = manager() + val transport = FakeTransport() + val (streamId, startEventId) = aGroupWithAStream(manager) + val watcher = MarmotAgentStreamWatcher(manager, transport, this) + + watcher.watchLatest(nostrGroupId) + withTimeout(5_000) { transport.subscribed.await() } + + val crypto = manager.agentTextStreamCrypto(nostrGroupId, hex(streamId), hex(startEventId)) + val publisher = AgentTextStreamPublisher.open(crypto, InMemoryAgentTextStreamSequenceStore()) + transport.records.emit(publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "half an ".encodeToByteArray())) + transport.records.emit(publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "answer".encodeToByteArray())) + + val preview = withTimeout(5_000) { watcher.preview.first { it?.text == "half an answer" } } + assertNotNull(preview) + assertEquals(streamId, preview.streamId) + assertEquals(PreviewStatus.LIVE, preview.status) + assertTrue( + !preview.isConfirmed, + "a live preview is provisional — a renderer must be able to tell it apart from durable content", + ) + watcher.stop() + } + + @Test + fun theFinalMessageConfirmsAPreviewThatMatchesIt() = + runBlocking { + val manager = manager() + val transport = FakeTransport() + val (streamId, startEventId) = aGroupWithAStream(manager) + val watcher = MarmotAgentStreamWatcher(manager, transport, this) + watcher.watchLatest(nostrGroupId) + withTimeout(5_000) { transport.subscribed.await() } + + val crypto = manager.agentTextStreamCrypto(nostrGroupId, hex(streamId), hex(startEventId)) + val publisher = AgentTextStreamPublisher.open(crypto, InMemoryAgentTextStreamSequenceStore()) + transport.records.emit(publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "the answer".encodeToByteArray())) + withTimeout(5_000) { watcher.preview.first { it?.text == "the answer" } } + + watcher.onFinal(streamId, publisher.transcript.hash.asHex(), publisher.transcript.chunkCount) + val confirmed = assertNotNull(withTimeout(5_000) { watcher.preview.first { it?.isConfirmed == true } }) + assertEquals("the answer", confirmed.text) + watcher.stop() + } + + @Test + fun aFinalThatDisagreesDiscardsThePreviewInsteadOfShowingIt() = + runBlocking { + val manager = manager() + val transport = FakeTransport() + val (streamId, startEventId) = aGroupWithAStream(manager) + val watcher = MarmotAgentStreamWatcher(manager, transport, this) + watcher.watchLatest(nostrGroupId) + withTimeout(5_000) { transport.subscribed.await() } + + val crypto = manager.agentTextStreamCrypto(nostrGroupId, hex(streamId), hex(startEventId)) + val publisher = AgentTextStreamPublisher.open(crypto, InMemoryAgentTextStreamSequenceStore()) + transport.records.emit(publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "tampered".encodeToByteArray())) + withTimeout(5_000) { watcher.preview.first { it?.text == "tampered" } } + + // A transcript that does not match means records were dropped, + // reordered or injected even though each one opened. The durable + // kind:9 is the answer; the preview must go. + watcher.onFinal(streamId, "0".repeat(64), 1) + withTimeout(5_000) { watcher.preview.first { it == null } } + watcher.stop() + } + + @Test + fun aFinalAlreadyInTheLogSettlesThePreviewWithoutTheUiSayingSo() = + runBlocking { + val manager = manager() + val transport = FakeTransport() + val (streamId, startEventId) = aGroupWithAStream(manager) + val watcher = MarmotAgentStreamWatcher(manager, transport, this) + watcher.watchLatest(nostrGroupId) + withTimeout(5_000) { transport.subscribed.await() } + + val crypto = manager.agentTextStreamCrypto(nostrGroupId, hex(streamId), hex(startEventId)) + val publisher = AgentTextStreamPublisher.open(crypto, InMemoryAgentTextStreamSequenceStore()) + transport.records.emit(publisher.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, "done".encodeToByteArray())) + withTimeout(5_000) { watcher.preview.first { it?.text == "done" } } + + // The durable message lands in the group log the ordinary way. A + // front end only reports "the feed moved"; the watcher does the + // rest. + manager.buildAgentStreamFinal( + nostrGroupId, + streamId, + publisher.transcript.hash.asHex(), + publisher.transcript.chunkCount, + "done", + ) + watcher.watchLatest(nostrGroupId) + + val confirmed = assertNotNull(withTimeout(5_000) { watcher.preview.first { it?.isConfirmed == true } }) + assertEquals("done", confirmed.text) + watcher.stop() + } + + @Test + fun aGroupWithNoBrokerCandidateShowsNoPreviewAtAll() = + runBlocking { + val manager = manager() + val transport = FakeTransport() + aGroupWithAStream(manager, brokers = emptyList()) + val watcher = MarmotAgentStreamWatcher(manager, transport, this) + + watcher.watchLatest(nostrGroupId) + // Zero candidates is valid: the preview is simply unavailable and + // every member still gets the final message. + assertNull(watcher.preview.value) + watcher.stop() + } + + @Test + fun anUnreachableBrokerLeavesTheGroupUsableWithoutAPreview() = + runBlocking { + val manager = manager() + val transport = FakeTransport().also { it.failEveryCandidate = true } + aGroupWithAStream(manager) + val watcher = MarmotAgentStreamWatcher(manager, transport, this) + + watcher.watchLatest(nostrGroupId) + assertNull( + watcher.preview.value, + "a candidate that will not connect is skipped, not fatal", + ) + watcher.stop() + } + + @Test + fun aPlatformWithoutQuicSimplyNeverPreviews() = + runBlocking { + val manager = manager() + aGroupWithAStream(manager) + val watcher = MarmotAgentStreamWatcher(manager, transport = null, scope = this) + + watcher.watchLatest(nostrGroupId) + assertNull(watcher.preview.value) + watcher.stop() + } + + private fun hex(s: String) = ByteArray(s.length / 2) { ((s[it * 2].digitToInt(16) shl 4) or s[it * 2 + 1].digitToInt(16)).toByte() } + + private fun ByteArray.asHex() = joinToString("") { (it.toInt() and 0xff).toString(16).padStart(2, '0') } +} + +private class WatcherStateStore : MlsGroupStateStore { + private val states = mutableMapOf() + private val retained = mutableMapOf>() + + override suspend fun save( + nostrGroupId: String, + state: ByteArray, + ) { + states[nostrGroupId] = state + } + + override suspend fun load(nostrGroupId: String): ByteArray? = states[nostrGroupId] + + override suspend fun delete(nostrGroupId: String) { + states.remove(nostrGroupId) + retained.remove(nostrGroupId) + } + + override suspend fun listGroups(): List = states.keys.toList() + + override suspend fun saveRetainedEpochs( + nostrGroupId: String, + retainedSecrets: List, + ) { + retained[nostrGroupId] = retainedSecrets + } + + override suspend fun loadRetainedEpochs(nostrGroupId: String): List = retained[nostrGroupId] ?: emptyList() +} + +private class WatcherMessageStore : MarmotMessageStore { + private val messages = mutableMapOf>() + private val epochs = mutableMapOf>() + + override suspend fun appendMessage( + nostrGroupId: String, + innerEventJson: String, + ) { + val log = messages.getOrPut(nostrGroupId) { mutableListOf() } + if (innerEventJson !in log) log.add(innerEventJson) + } + + override suspend fun loadMessages(nostrGroupId: String): List = messages[nostrGroupId]?.toList() ?: emptyList() + + override suspend fun delete(nostrGroupId: String) { + messages.remove(nostrGroupId) + epochs.remove(nostrGroupId) + } + + override suspend fun recordEpoch( + nostrGroupId: String, + innerEventId: String, + epoch: Long, + ) { + epochs.getOrPut(nostrGroupId) { mutableMapOf() }[innerEventId] = epoch + } + + override suspend fun loadEpochs(nostrGroupId: String): Map = epochs[nostrGroupId]?.toMap() ?: emptyMap() +} + +private class WatcherBundleStore : KeyPackageBundleStore { + private var snapshot: ByteArray? = null + + override suspend fun save(snapshot: ByteArray) { + this.snapshot = snapshot + } + + override suspend fun load(): ByteArray? = snapshot + + override suspend fun delete() { + snapshot = null + } +} diff --git a/marmotQuic/README.md b/marmotQuic/README.md index 3f9c1e1837..b0ac4608e5 100644 --- a/marmotQuic/README.md +++ b/marmotQuic/README.md @@ -76,9 +76,10 @@ amy marmot stream finish GID --stream-id … --transcript-hash … --chunk-count ## Not done -- The GUIs do not originate or render a stream yet, which is why the `send` - (`0xF2D2`) and `fanout` (`0xF2D4`) role capabilities stay unadvertised — a - role is a promise to the whole group. +- The Android GUI renders previews but does not originate a stream — that is + an agent's job, and no agent runs in the app yet. Only `amy` publishes one. +- The desktop app has no Marmot chat screen at all, so there is nothing to + render a preview into. The watcher it would use already lives in `commons`. - The direct path (`marmot.quic_stream.v1`) is unimplemented. v1 defines no start-payload candidate format for it, so it is only reachable with an endpoint known out of band. diff --git a/quartz/plans/2026-09-08-marmot-spec-resync.md b/quartz/plans/2026-09-08-marmot-spec-resync.md index c6865b72cf..3ad2d44bc5 100644 --- a/quartz/plans/2026-09-08-marmot-spec-resync.md +++ b/quartz/plans/2026-09-08-marmot-spec-resync.md @@ -695,12 +695,11 @@ test we have. in-memory `AgentTextStreamSequenceStore` exists; a platform-backed one lands with the transport that needs it. - We still do NOT advertise `send` (`0xF2D2`) or `fanout` (`0xF2D4`) in - KeyPackage capabilities. Everything behind them now works end to end, but the - roles are a promise to a whole group and the GUIs do not yet originate or - render a stream — only the CLI does. A group whose policy requires `send` is - refused at join rather than joined into a state every peer would reject us - from. + Our leaf now advertises all three roles — `receive` (`0xF2D1`), `send` + (`0xF2D2`) and `fanout` (`0xF2D4`) — which is the same set MDK puts on every + KeyPackage it publishes, so a group requiring any of them admits us. A + capability is a claim about what the client supports, not a duty to stream: a + member that never originates one is a quiet member, not a broken one. - **The QUIC transport binding is implemented and verified against MDK's broker.** `transports/quic.md` is a RAW QUIC binding — its own ALPNs @@ -723,6 +722,19 @@ test we have. start-payload candidate format for it, so it is only usable with an out-of-band endpoint. +- **The Android GUI renders live previews.** `MarmotAgentStreamWatcher` in + `commons` follows the newest kind:1200 in a group, folds the QUIC records + behind it under the receive discipline, and settles the preview against the + durable kind:9 — confirmed when the transcript agrees, dropped when it does + not, because a disagreement means we rendered something the publisher did not + send. It is deliberately in `commons` and speaks only quartz's transport + port, so it is testable without a UI and the desktop app inherits it the day + it grows a Marmot chat screen. Android's chat view shows it as an italic, + labelled row between the transcript and the composer: provisional content has + to look provisional. Every failure path — no stream, no candidate, an + unreachable broker, a platform with no QUIC at all — ends as "no preview", + never as a broken group. + - **The feature is wired end to end, both directions, against MDK.** `amy marmot stream start|send|watch|finish` mints the kind-1200 anchor, pushes records through a broker, folds a preview under the receive discipline diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index 09ff4aeb05..bd24d33d1a 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -3442,7 +3442,21 @@ class MlsGroup private constructor( listOf( AppDataDictionary.EXTENSION_TYPE, MarmotGroupData.EXTENSION_ID_INT, + // All three agent-stream roles, matching what MDK puts + // on every KeyPackage it publishes. `receive` is the + // baseline compatibility role; `send` says we can + // originate preview records, which we can now that the + // publisher, the raw-QUIC binding and the app wiring + // exist; `fanout` says records may be forwarded on our + // behalf, which is what using a broker at all means. + // + // A capability is only a claim about what we support, + // not a duty to stream: a group that requires `send` + // wants members that COULD originate, and a member that + // never does is a quiet member, not a broken one. AgentTextStreamRoles.RECEIVE_CAPABILITY, + AgentTextStreamRoles.SEND_CAPABILITY, + AgentTextStreamRoles.FANOUT_CAPABILITY, ), proposals = listOf(APP_DATA_UPDATE_PROPOSAL_TYPE, SELF_REMOVE_PROPOSAL_TYPE), ) diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt index 96cdd0a214..d99adc5d01 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt @@ -107,12 +107,13 @@ class CurrentProfileGroupFactoryTest { assertContentEquals(ByteArray(0), kpDictionary[AppComponentIds.LAST_RESORT_KEY_PACKAGE]) // Capabilities advertise the draft extension the current profile - // needs, plus the legacy 0xF2EE group-data extension and the - // agent-text-stream RECEIVE role. + // needs, plus the legacy 0xF2EE group-data extension and all three + // agent-text-stream roles — the same set MDK puts on every + // KeyPackage it publishes. // // The extra entries are deliberate and are NOT drift from the MDK // reference. A capability says "this client can handle it", and a - // group that REQUIRES 0xF2EE (legacy) or 0xF2D1 (any group MDK + // group that REQUIRES 0xF2EE (legacy) or a role (any group MDK // creates) refuses to add a leaf that does not advertise it — so // without these a current-profile KeyPackage would be un-addable // to every legacy group that already exists and to every group MDK @@ -123,6 +124,8 @@ class CurrentProfileGroupFactoryTest { AppDataDictionary.EXTENSION_TYPE, MarmotGroupData.EXTENSION_ID_INT, AgentTextStreamRoles.RECEIVE_CAPABILITY, + AgentTextStreamRoles.SEND_CAPABILITY, + AgentTextStreamRoles.FANOUT_CAPABILITY, ), kp.leafNode.capabilities.extensions, ) diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt index 476770671a..8b4288df3c 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt @@ -23,6 +23,12 @@ package com.vitorpamplona.quartz.marmot.mls.group import com.vitorpamplona.quartz.marmot.appComponents.CurrentProfileGroupFactory import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamQuicPolicyV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRoles +import com.vitorpamplona.quartz.marmot.mls.crypto.Ed25519 +import com.vitorpamplona.quartz.marmot.mls.crypto.Ed25519KeyPair +import com.vitorpamplona.quartz.marmot.mls.messages.KeyPackageBundle +import com.vitorpamplona.quartz.marmot.mls.tree.Capabilities +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal @@ -88,12 +94,19 @@ class CurrentProfileWelcomeTest { /** * The `0x8006` policy names MLS leaf capabilities every member must - * advertise. Our current-profile leaf advertises `receive` only, so a - * group that also requires `send` must be refused at join rather than - * joined into a state where every commit we make is rejected by peers. + * advertise, and a group that requires one we do not advertise has to be + * refused at join — joining anyway lands us in a group where peers reject + * every commit we make. + * + * The gate is tested against a deliberately reduced leaf rather than + * against our own KeyPackage, because our own now advertises all three + * defined roles (see [aJoinerFillsEveryRoleTheProfileDefines]) and so + * cannot fail this check. Testing "we refuse what we cannot fill" through + * our own capability set would silently stop testing anything the moment + * that set changed — which is exactly what happened here. */ @Test - fun aJoinerRefusesAGroupWhoseStreamRolesItCannotFill() = + fun aJoinerRefusesAGroupWhoseStreamRolesItsLeafDoesNotAdvertise() = runBlocking { val group = aGroup( @@ -105,7 +118,7 @@ class CurrentProfileWelcomeTest { paddingBucketBytes = 0, ), ) - val invitee = CurrentProfileGroupFactory.createKeyPackage(signer(0x44)) + val invitee = receiveOnlyKeyPackage(signer(0x44)) group.proposeAdd(invitee.keyPackage.toTlsBytes()) val welcome = assertNotNull(group.commit().welcomeBytes) @@ -116,6 +129,64 @@ class CurrentProfileWelcomeTest { ) } + /** + * Our published leaf advertises `receive`, `send` AND `fanout` — the same + * set MDK puts on every KeyPackage — so a group that requires any of them + * admits us. + */ + @Test + fun aJoinerFillsEveryRoleTheProfileDefines() = + runBlocking { + val group = + aGroup( + AgentTextStreamQuicPolicyV1( + requiredMemberRoles = AgentTextStreamRoles.MASK, + allowedMemberRoles = AgentTextStreamRoles.MASK, + maxPlaintextFrameLen = 4096, + replayTtlSecs = 0, + paddingBucketBytes = 0, + ), + ) + val invitee = CurrentProfileGroupFactory.createKeyPackage(signer(0x66)) + group.proposeAdd(invitee.keyPackage.toTlsBytes()) + val welcome = assertNotNull(group.commit().welcomeBytes) + + val joined = MlsGroup.processWelcome(welcome, invitee) + assertEquals(nostrGroupId.toHexKey(), joined.currentNostrGroupId()) + } + + /** A current-profile leaf with the `send` and `fanout` roles stripped. */ + private suspend fun receiveOnlyKeyPackage(signer: NostrSignerInternal): KeyPackageBundle { + val full = CurrentProfileGroupFactory.createKeyPackage(signer) + val reduced = + MlsGroup.currentProfileLeafCapabilities().let { + Capabilities( + extensions = it.extensions.filterNot { ext -> ext == AgentTextStreamRoles.SEND_CAPABILITY || ext == AgentTextStreamRoles.FANOUT_CAPABILITY }, + proposals = it.proposals, + ) + } + val identity = signer.pubKey.hexToByteArray() + // The SAME signature keypair: the leaf's account identity proof covers + // its own signature key, so a fresh one would fail proof validation + // before the role gate is ever reached and the test would pass for the + // wrong reason. + val leafKeys = + Ed25519KeyPair( + privateKey = full.signaturePrivateKey, + publicKey = Ed25519.publicFromPrivate(full.signaturePrivateKey), + ) + return MlsGroup + .create(identity) + .createKeyPackage( + identity = identity, + signingKey = full.signaturePrivateKey, + leafSignatureKeyPair = leafKeys, + leafExtensions = full.keyPackage.leafNode.extensions, + capabilities = reduced, + keyPackageExtensions = full.keyPackage.extensions, + ) + } + @Test fun aJoinerAcceptsAGroupRequiringOnlyTheReceiveRole() = runBlocking { From fa8b41e7bca5cbd98a946b98682ec439d8d93981 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 15:17:03 +0000 Subject: [PATCH 33/79] feat(marmot): group avatars behind a plain https link MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit `marmot.group.avatar-url.v1` (0x8007) is the lightweight alternative to the encrypted Blossom blob: a link, two opaque render hints, no key material. We had neither the codec nor a carrier for it, so a group MDK gave a URL avatar rendered as if it had none. The hard part is not the struct, it is that the URL is canonical state. The spec makes normalization a producer-side encoding rule and requires a decoder to re-run the WHATWG parse-and-serialize and REJECT bytes that differ — never repair them, because two members repairing differently hold different bytes for the same group. So `MarmotHttpsUrl` is a WHATWG serializer, not a validator with a regex: lowercased scheme and host, the default port dropped, dot-segments resolved against a segment list (a trailing slash is a final empty segment, which is also why `/a/.` keeps one), percent-encoding normalized with existing triplets left verbatim. The vectors in the test come from the Rust `url` crate the reference implementation uses, so the two agree byte for byte. Non-ASCII hosts are refused rather than guessed at: IDNA is not implemented here, and a wrong punycode encoding would be worse than a refusal. Contact safety is deliberately a separate function. A URL can be perfectly valid group state and still be somewhere this client refuses to go, and the spec is explicit that the fetch decision "MUST NOT affect component or commit validity" — so the SSRF check lives at the renderer, where an unsafe destination falls back to the Blossom image instead of erroring. Clearing writes the canonical empty state rather than removing the component. Removal is not a free substitute: a component MUST NOT be removed while `app_components` still lists it as required, so a remove is only legal in the same Commit that stops requiring it — and the empty state is what the reference implementation writes. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../marmotGroup/MarmotGroupIconDisplay.kt | 34 +++ .../chats/rooms/ChatroomHeaderCompose.kt | 12 +- .../ActiveSubscriptionsScreen.kt | 7 +- .../amethyst/cli/commands/GroupCommands.kt | 5 + .../cli/commands/GroupMetadataCommands.kt | 47 ++++ .../cli/commands/GroupReadCommands.kt | 15 + .../amethyst/commons/marmot/MarmotManager.kt | 48 ++++ .../model/marmotGroups/MarmotGroupChatroom.kt | 9 + .../marmot/appComponents/GroupAvatarUrlV1.kt | 147 ++++++++++ .../marmot/appComponents/MarmotGroupState.kt | 34 +++ .../marmot/appComponents/MarmotHttpsUrl.kt | 266 ++++++++++++++++++ .../appComponents/GroupAvatarUrlV1Test.kt | 235 ++++++++++++++++ 12 files changed, 851 insertions(+), 8 deletions(-) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotHttpsUrl.kt create mode 100644 quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupIconDisplay.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupIconDisplay.kt index 27abf2ec10..d26d064494 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupIconDisplay.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupIconDisplay.kt @@ -28,6 +28,8 @@ import com.vitorpamplona.amethyst.Amethyst import com.vitorpamplona.amethyst.commons.model.marmotGroups.MarmotGroupImage import com.vitorpamplona.amethyst.model.nip11RelayInfo.loadRelayInfo import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel +import com.vitorpamplona.quartz.marmot.appComponents.GroupAvatarUrlV1 +import com.vitorpamplona.quartz.marmot.appComponents.MarmotHttpsUrl import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupImageCipher import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer @@ -92,6 +94,38 @@ fun rememberMarmotGroupIconUrl( return url } +/** + * The avatar URL for a group that may carry either avatar carrier, applying the + * components' precedence: `marmot.group.avatar-url.v1` wins over + * `marmot.group.blossom.image.v1`, and clearing the URL one falls back to the + * Blossom blob. + * + * The URL avatar is a plain link with no key material, so there is no cipher to + * register — it just goes to Coil. It does get a contact check first: a URL can + * be valid group state and still be somewhere we refuse to fetch from, and the + * spec puts that decision squarely on the client. An unsafe destination renders + * as no URL avatar rather than as an error, which lets the Blossom image (or the + * relay icon) take over. + * + * Returns null when the group has neither carrier. + */ +@Composable +fun rememberMarmotGroupAvatarUrl( + avatarUrl: GroupAvatarUrlV1?, + image: MarmotGroupImage?, + accountViewModel: AccountViewModel, + adminPubkeys: List = emptyList(), +): String? { + val link = + remember(avatarUrl) { + avatarUrl?.url?.takeIf { it.isNotEmpty() && MarmotHttpsUrl.isSafeToContact(it) } + } + // Branch rather than resolving both: the Blossom path registers a + // decryption cipher and probes servers as a side effect, and neither is + // worth doing for an avatar the renderer is not going to show. + return if (link != null) link else rememberMarmotGroupIconUrl(image, accountViewModel, adminPubkeys) +} + /** * The NIP-11 icon of the group's first resolvable relay, used as a fallback avatar * when the group has no image of its own. Fetches the relay's NIP-11 document on a diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/rooms/ChatroomHeaderCompose.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/rooms/ChatroomHeaderCompose.kt index 2951df49ca..a2859f96ce 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/rooms/ChatroomHeaderCompose.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/rooms/ChatroomHeaderCompose.kt @@ -103,7 +103,7 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.buzzTimeli import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.observeUserNameByHex import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.loadMarmotRelayIcon import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.marmotGroupLastReadRoute -import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.rememberMarmotGroupIconUrl +import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.rememberMarmotGroupAvatarUrl import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.privateDM.header.RoomNameDisplay import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.privateDM.header.reportWarningContentDescription import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.publicChannels.concord.ConcordCommunityPill @@ -466,6 +466,7 @@ private fun MarmotGroupRoomCompose( ) { val displayName by chatroom.displayName.collectAsStateWithLifecycle() val image by chatroom.image.collectAsStateWithLifecycle() + val avatarUrl by chatroom.avatarUrl.collectAsStateWithLifecycle() val relays by chatroom.relays.collectAsStateWithLifecycle() val adminPubkeys by chatroom.adminPubkeys.collectAsStateWithLifecycle() @@ -473,11 +474,12 @@ private fun MarmotGroupRoomCompose( val noteEvent = lastMessage.event val groupName = displayName?.takeIf { it.isNotBlank() } ?: "Group ${chatroom.nostrGroupId.take(8)}" - // Prefer the group's own (encrypted) avatar; when it has none, fall back to the - // NIP-11 icon of one of the group's relays (fetched on a cache miss). + // Prefer the group's own avatar — the plain https link first, then the + // encrypted Blossom blob; when it has neither, fall back to the NIP-11 icon + // of one of the group's relays (fetched on a cache miss). val channelPicture = - if (image != null) { - rememberMarmotGroupIconUrl(image, accountViewModel, adminPubkeys) + if (avatarUrl != null || image != null) { + rememberMarmotGroupAvatarUrl(avatarUrl, image, accountViewModel, adminPubkeys) } else { loadMarmotRelayIcon(relays) } diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/relays/subscriptions/ActiveSubscriptionsScreen.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/relays/subscriptions/ActiveSubscriptionsScreen.kt index 0e09fbba20..f0315bbf43 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/relays/subscriptions/ActiveSubscriptionsScreen.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/relays/subscriptions/ActiveSubscriptionsScreen.kt @@ -90,7 +90,7 @@ import com.vitorpamplona.amethyst.ui.navigation.topbars.TopBarWithBackButton import com.vitorpamplona.amethyst.ui.note.creators.location.LoadCityName import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.loadMarmotRelayIcon -import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.rememberMarmotGroupIconUrl +import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.rememberMarmotGroupAvatarUrl import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.publicChannels.concord.rememberConcordImageModel import com.vitorpamplona.amethyst.ui.screen.loggedIn.relays.common.SubPurposeLabels import com.vitorpamplona.amethyst.ui.stringRes @@ -593,14 +593,15 @@ private fun rememberMarmotEntity( val displayName by chatroom.displayName.collectAsStateWithLifecycle() val image by chatroom.image.collectAsStateWithLifecycle() + val avatarUrl by chatroom.avatarUrl.collectAsStateWithLifecycle() val relays by chatroom.relays.collectAsStateWithLifecycle() val adminPubkeys by chatroom.adminPubkeys.collectAsStateWithLifecycle() // Same name/icon precedence the chat-rooms list uses, so a group reads identically in both places. val name = displayName?.takeIf { it.isNotBlank() } ?: stringRes(Res.string.marmot_group_fallback_name, id.take(8)) val picture = - if (image != null) { - rememberMarmotGroupIconUrl(image, accountViewModel, adminPubkeys) + if (avatarUrl != null || image != null) { + rememberMarmotGroupAvatarUrl(avatarUrl, image, accountViewModel, adminPubkeys) } else { loadMarmotRelayIcon(relays) } diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCommands.kt index eff9dd0b90..4a1c239843 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCommands.kt @@ -41,6 +41,9 @@ object GroupCommands { | marmot group set-image GID FILE encrypt + commit a group avatar | [--server URL] (--server uploads the ciphertext to Blossom) | marmot group clear-image GID remove the group avatar + | marmot group set-avatar-url GID URL commit a plain https avatar link + | [--dim WxH] [--thumbhash TEXT] (optional opaque render hints) + | marmot group clear-avatar-url GID remove the https avatar link | marmot group remove GID NPUB remove member | marmot group leave GID self-remove """.trimMargin() @@ -65,6 +68,8 @@ object GroupCommands { "demote" to { rest -> GroupMetadataCommands.demote(dataDir, rest) }, "set-image" to { rest -> GroupMetadataCommands.setImage(dataDir, rest) }, "clear-image" to { rest -> GroupMetadataCommands.clearImage(dataDir, rest) }, + "set-avatar-url" to { rest -> GroupMetadataCommands.setAvatarUrl(dataDir, rest) }, + "clear-avatar-url" to { rest -> GroupMetadataCommands.clearAvatarUrl(dataDir, rest) }, "remove" to { rest -> GroupMembershipCommands.remove(dataDir, rest) }, "leave" to { rest -> GroupMembershipCommands.leave(dataDir, rest) }, ), diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt index 1b3ea5d64c..3b298ffb32 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt @@ -29,7 +29,9 @@ import com.vitorpamplona.amethyst.commons.service.upload.BlossomAuth import com.vitorpamplona.amethyst.commons.service.upload.BlossomClient import com.vitorpamplona.amethyst.commons.util.deleteOrWarn import com.vitorpamplona.quartz.marmot.OutboundGroupEvent +import com.vitorpamplona.quartz.marmot.appComponents.GroupAvatarUrlV1 import com.vitorpamplona.quartz.marmot.appComponents.GroupBlossomImageV1 +import com.vitorpamplona.quartz.marmot.appComponents.MarmotHttpsUrl import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupImageEncryption import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray @@ -139,6 +141,51 @@ object GroupMetadataCommands { return commit(dataDir, rest[0]) { ctx, gid, _ -> ctx.marmot.setGroupImage(gid, null) } } + /** + * Point the group avatar at a plain `https` URL (`0x8007`). + * + * The URL is normalized by the component's encoder, so what gets committed + * may differ from what was typed — the emitted `avatar_url` is the stored + * form, not the argument. + * + * `group set-avatar-url [--dim WIDTHxHEIGHT] [--thumbhash TEXT]` + */ + suspend fun setAvatarUrl( + dataDir: DataDir, + rest: Array, + ): Int { + val args = Args(rest) + val gid = args.positional(0, "gid") + val url = args.positional(1, "url") + val dim = args.flag("dim") + val thumbhash = args.flag("thumbhash") + args.rejectUnknown() + + val avatar = + try { + GroupAvatarUrlV1( + url = MarmotHttpsUrl.normalize(url), + dim = dim?.encodeToByteArray() ?: ByteArray(0), + thumbhash = thumbhash?.encodeToByteArray() ?: ByteArray(0), + ) + } catch (e: IllegalArgumentException) { + return Output.error("bad_args", e.message ?: "invalid avatar URL") + } + + return commit(dataDir, gid, mapOf("avatar_url" to avatar.url)) { ctx, resolved, _ -> + ctx.marmot.setGroupAvatarUrl(resolved, avatar) + } + } + + /** Remove the https avatar link. `group clear-avatar-url ` */ + suspend fun clearAvatarUrl( + dataDir: DataDir, + rest: Array, + ): Int { + if (rest.isEmpty()) return Output.error("bad_args", "group clear-avatar-url ") + return commit(dataDir, rest[0]) { ctx, gid, _ -> ctx.marmot.setGroupAvatarUrl(gid, null) } + } + /** * Run one metadata commit and report it. * diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupReadCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupReadCommands.kt index 114118aff9..cacd651fe8 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupReadCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupReadCommands.kt @@ -72,6 +72,21 @@ object GroupReadCommands { "epoch" to ctx.marmot.groupEpoch(gid), "admins" to (meta?.adminPubkeys ?: emptyList()), "relays" to (meta?.relays ?: emptyList()), + "avatar_url" to meta?.avatarUrl?.url, + // Hints are opaque bytes by contract; render them as text + // only for the conventional UTF-8 case an operator can read. + "avatar_dim" to + meta + ?.avatarUrl + ?.dim + ?.takeIf { it.isNotEmpty() } + ?.decodeToString(), + "avatar_thumbhash" to + meta + ?.avatarUrl + ?.thumbhash + ?.takeIf { it.isNotEmpty() } + ?.decodeToString(), "members" to members, "is_admin" to (meta?.adminPubkeys?.contains(ctx.identity.pubKeyHex) == true), ), diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index cef8174ea6..727c0e00db 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -33,6 +33,7 @@ import com.vitorpamplona.quartz.marmot.WelcomeDelivery import com.vitorpamplona.quartz.marmot.WelcomeResult import com.vitorpamplona.quartz.marmot.appComponents.AdminPolicyV1 import com.vitorpamplona.quartz.marmot.appComponents.CurrentProfileGroupFactory +import com.vitorpamplona.quartz.marmot.appComponents.GroupAvatarUrlV1 import com.vitorpamplona.quartz.marmot.appComponents.GroupBlossomImageV1 import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 import com.vitorpamplona.quartz.marmot.appComponents.MarmotGroupState @@ -1116,6 +1117,16 @@ class MarmotManager( val adminPubkeys: List, val relays: List, val image: MarmotGroupImage?, + /** + * The plain-https avatar (`0x8007`), or null when the group carries + * none. Absent-but-present state reads as null here: a cleared avatar + * and no avatar look identical to a renderer, and the difference only + * matters to the codec. + * + * When this and [image] are both set, this one wins — see + * [MarmotGroupState.preferredAvatar]. + */ + val avatarUrl: GroupAvatarUrlV1?, /** True when the group requires `0x8009` — see [MarmotGroupState.isCurrentProfile]. */ val isCurrentProfile: Boolean, ) @@ -1140,6 +1151,7 @@ class MarmotManager( else -> null }, + avatarUrl = state.avatarUrl?.takeIf { !it.isAbsent }, isCurrentProfile = state.isCurrentProfile, ) } @@ -1242,6 +1254,41 @@ class MarmotManager( }.event } + /** + * Set or clear the group's plain-https avatar (`marmot.group.avatar-url.v1`). + * + * [avatar] null clears it by writing the canonical EMPTY state rather than + * removing the component. That is the spec's own clear ("Clearing the + * avatar sends the empty state"), and removal is not a free substitute for + * it: a component MUST NOT be removed while `app_components` still lists it + * as required, so a remove would only be legal in the same Commit that + * stopped requiring it. + * + * There is no legacy carrier for this. MIP-01's `0xF2EE` blob had only the + * encrypted-Blossom fields, so a legacy group genuinely cannot hold a URL + * avatar and this refuses rather than silently writing somewhere else. + */ + suspend fun setGroupAvatarUrl( + nostrGroupId: HexKey, + avatar: GroupAvatarUrlV1?, + relays: List = groupRelays(nostrGroupId), + ): OutboundGroupEvent { + val view = groupView(nostrGroupId) ?: throw IllegalStateException("Not a member of group $nostrGroupId") + check(view.isCurrentProfile) { + "Group $nostrGroupId is a legacy MIP-01 group and has no carrier for a URL avatar" + } + // Encode before staging: an invalid or non-normalizable URL should fail + // the caller here, not halfway through building a Commit. + val encoded = (avatar?.takeIf { !it.isAbsent } ?: GroupAvatarUrlV1.ABSENT).encode() + return commitAndPublish(nostrGroupId, relays) { + groupManager.stageAppDataUpdate( + nostrGroupId, + GroupAvatarUrlV1.COMPONENT_ID, + encoded, + ) + }.event + } + // --- KeyPackage Management --- /** @@ -1473,6 +1520,7 @@ class MarmotManager( chatroom.adminPubkeys.value = view.adminPubkeys chatroom.relays.value = view.relays chatroom.image.value = view.image + chatroom.avatarUrl.value = view.avatarUrl } val previousCount = chatroom.members.value.size val members = memberPubkeys(nostrGroupId) diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt index 16e27c49fe..6486941c80 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt @@ -29,6 +29,7 @@ import com.vitorpamplona.amethyst.commons.model.NotesGatherer import com.vitorpamplona.amethyst.commons.util.KmpLock import com.vitorpamplona.amethyst.commons.util.WeakReference import com.vitorpamplona.amethyst.commons.util.withLock +import com.vitorpamplona.quartz.marmot.appComponents.GroupAvatarUrlV1 import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl import kotlinx.coroutines.channels.BufferOverflow @@ -55,6 +56,14 @@ class MarmotGroupChatroom( * it; when null they fall back to the host relay's NIP-11 icon. */ var image = MutableStateFlow(null) + + /** + * The group's plain-https avatar (`marmot.group.avatar-url.v1`), or null + * when it has none. It takes precedence over [image]: a group carrying + * both shows this one, and only falls back to the encrypted Blossom blob + * once this is cleared. + */ + var avatarUrl = MutableStateFlow(null) var adminPubkeys = MutableStateFlow>(emptyList()) var relays = MutableStateFlow>(emptyList()) var memberCount = MutableStateFlow(0) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1.kt new file mode 100644 index 0000000000..3d90ce510d --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1.kt @@ -0,0 +1,147 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter + +/** + * `marmot.group.avatar-url.v1`, component `0x8007` — a group avatar behind an + * ordinary `https` URL. + * + * ```text + * struct { + * opaque url<0..2048>; + * opaque dim<0..256>; + * opaque thumbhash<0..256>; + * } MarmotGroupAvatarUrlV1; + * ``` + * + * The lightweight alternative to [GroupBlossomImageV1]: no key material, no + * encrypted blob, just a link. An absent avatar is the empty state — an empty + * `url` AND empty hints; a partially-empty state is invalid, so "no avatar" has + * exactly one encoding. + * + * [dim] and [thumbhash] are opaque by contract. A decoder checks only their + * length, and a hint it cannot interpret is treated as absent rather than + * invalidating otherwise-valid group state — which is why they are kept as raw + * bytes here and interpreted only at render time ([dimensions]). + * + * **Precedence:** a group may carry this AND [GroupBlossomImageV1]. When both + * are present the URL avatar wins; clearing this one falls back to the Blossom + * image. + */ +data class GroupAvatarUrlV1( + val url: String, + val dim: ByteArray = ByteArray(0), + val thumbhash: ByteArray = ByteArray(0), +) { + /** True for the cleared/absent avatar. */ + val isAbsent: Boolean get() = url.isEmpty() + + /** + * `dim` read as the conventional `WIDTHxHEIGHT`, or null when it is absent + * or in a shape this renderer does not understand. Never an error: an + * uninterpretable hint is not a validity problem. + */ + val dimensions: Pair? + get() { + if (dim.isEmpty()) return null + val text = + try { + dim.decodeToString(throwOnInvalidSequence = true) + } catch (_: Exception) { + return null + } + val parts = text.split('x', 'X') + if (parts.size != 2) return null + val w = parts[0].toIntOrNull() ?: return null + val h = parts[1].toIntOrNull() ?: return null + if (w <= 0 || h <= 0) return null + return w to h + } + + fun encode(): ByteArray { + require(!(isAbsent && (dim.isNotEmpty() || thumbhash.isNotEmpty()))) { + "group avatar absent state must not carry hints" + } + require(dim.size <= HINT_MAX_BYTES) { "group avatar dim exceeds $HINT_MAX_BYTES bytes" } + require(thumbhash.size <= HINT_MAX_BYTES) { "group avatar thumbhash exceeds $HINT_MAX_BYTES bytes" } + + // Normalizing at encode is the producer's job: the stored bytes ARE the + // serialized form, and every decoder re-derives them to check. + val stored = if (isAbsent) "" else MarmotHttpsUrl.normalize(url) + + val writer = TlsWriter() + writer.putOpaqueVarInt(stored.encodeToByteArray()) + writer.putOpaqueVarInt(dim) + writer.putOpaqueVarInt(thumbhash) + return writer.toByteArray() + } + + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is GroupAvatarUrlV1) return false + return url == other.url && dim.contentEquals(other.dim) && thumbhash.contentEquals(other.thumbhash) + } + + override fun hashCode(): Int { + var result = url.hashCode() + result = 31 * result + dim.contentHashCode() + result = 31 * result + thumbhash.contentHashCode() + return result + } + + companion object { + const val COMPONENT_ID = AppComponentIds.GROUP_AVATAR_URL_V1 + const val URL_MAX_BYTES = MarmotHttpsUrl.MAX_BYTES + const val HINT_MAX_BYTES = 256 + + /** The cleared avatar: every field empty. */ + val ABSENT = GroupAvatarUrlV1("") + + fun decode(bytes: ByteArray): GroupAvatarUrlV1 { + val reader = TlsReader(bytes) + val url = reader.readOpaqueVarInt() + val dim = reader.readOpaqueVarInt() + val thumbhash = reader.readOpaqueVarInt() + require(!reader.hasRemaining) { "group avatar component has trailing bytes" } + require(url.size <= URL_MAX_BYTES) { "group avatar URL exceeds $URL_MAX_BYTES bytes" } + require(dim.size <= HINT_MAX_BYTES) { "group avatar dim exceeds $HINT_MAX_BYTES bytes" } + require(thumbhash.size <= HINT_MAX_BYTES) { "group avatar thumbhash exceeds $HINT_MAX_BYTES bytes" } + + val text = url.decodeToString() + // Presence is decided on the bytes, before anything is parsed. + require(!(text.isEmpty() && (dim.isNotEmpty() || thumbhash.isNotEmpty()))) { + "group avatar absent state must not carry hints" + } + if (text.isNotEmpty()) { + // "A decoder re-runs validation and the WHATWG parse-and-serialize + // on the decoded url and MUST reject state whose stored URL bytes + // differ from the serializer's output." A decoder never repairs a + // non-normalized URL into canonical state — two members would then + // hold different bytes for the same group. + require(MarmotHttpsUrl.normalize(text) == text) { "group avatar URL is not normalized" } + } + return GroupAvatarUrlV1(text, dim, thumbhash) + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt index 358a75dab3..6a5081da53 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt @@ -56,10 +56,25 @@ data class MarmotGroupState( val adminPolicy: AdminPolicyV1?, val routing: NostrRoutingV1?, val image: GroupBlossomImageV1?, + val avatarUrl: GroupAvatarUrlV1?, val retention: MessageRetentionV1?, val lifecycle: GroupLifecycleV1?, val agentTextStream: AgentTextStreamQuicPolicyV1?, ) { + /** + * The avatar a renderer should show, honouring the components' documented + * precedence: "When both are present, the URL avatar wins." + * + * A cleared URL avatar (present but empty) is not the same as an absent + * one — it explicitly falls back to the Blossom image, which is why this + * checks [GroupAvatarUrlV1.isAbsent] rather than nullness alone. + */ + val preferredAvatar: MarmotGroupAvatar? + get() { + avatarUrl?.takeIf { !it.isAbsent }?.let { return MarmotGroupAvatar.Url(it) } + return image?.let { MarmotGroupAvatar.Blossom(it) } + } + /** True once a disband Commit has been applied. Absorbing and terminal. */ val isDisbanded: Boolean get() = lifecycle == GroupLifecycleV1.DISBANDED @@ -99,6 +114,7 @@ data class MarmotGroupState( adminPolicy = dictionary[AdminPolicyV1.COMPONENT_ID]?.let { AdminPolicyV1.decode(it) }, routing = dictionary[NostrRoutingV1.COMPONENT_ID]?.let { NostrRoutingV1.decode(it) }, image = dictionary[GroupBlossomImageV1.COMPONENT_ID]?.let { GroupBlossomImageV1.decode(it) }, + avatarUrl = dictionary[GroupAvatarUrlV1.COMPONENT_ID]?.let { GroupAvatarUrlV1.decode(it) }, retention = dictionary[MessageRetentionV1.COMPONENT_ID]?.let { MessageRetentionV1.decode(it) }, lifecycle = dictionary[GroupLifecycleV1.COMPONENT_ID]?.let { GroupLifecycleV1.decode(it) }, agentTextStream = @@ -121,6 +137,7 @@ data class MarmotGroupState( routing: NostrRoutingV1? = null, profile: GroupProfileV1? = null, image: GroupBlossomImageV1? = null, + avatarUrl: GroupAvatarUrlV1? = null, retention: MessageRetentionV1? = null, lifecycle: GroupLifecycleV1? = GroupLifecycleV1.ACTIVE, agentTextStream: AgentTextStreamQuicPolicyV1? = null, @@ -144,6 +161,10 @@ data class MarmotGroupState( required.add(GroupBlossomImageV1.COMPONENT_ID) dictionary = dictionary.with(GroupBlossomImageV1.COMPONENT_ID, it.encode()) } + avatarUrl?.let { + required.add(GroupAvatarUrlV1.COMPONENT_ID) + dictionary = dictionary.with(GroupAvatarUrlV1.COMPONENT_ID, it.encode()) + } retention?.let { required.add(MessageRetentionV1.COMPONENT_ID) dictionary = dictionary.with(MessageRetentionV1.COMPONENT_ID, it.encode()) @@ -161,3 +182,16 @@ data class MarmotGroupState( } } } + +/** Which avatar surface a group's state resolves to, after precedence. */ +sealed class MarmotGroupAvatar { + /** `marmot.group.avatar-url.v1` — a plain https link, no key material. */ + data class Url( + val avatar: GroupAvatarUrlV1, + ) : MarmotGroupAvatar() + + /** `marmot.group.blossom.image.v1` — an encrypted blob on a Blossom server. */ + data class Blossom( + val image: GroupBlossomImageV1, + ) : MarmotGroupAvatar() +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotHttpsUrl.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotHttpsUrl.kt new file mode 100644 index 0000000000..cc6cab0053 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotHttpsUrl.kt @@ -0,0 +1,266 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +/** + * The `https`-only WHATWG URL normalizer Marmot group state needs. + * + * This exists because normalization is part of the wire format, not a + * convenience: `marmot.group.avatar-url.v1` stores the serialized form, and a + * decoder "MUST reject state whose stored URL bytes differ from the + * serializer's output". So this has to agree with every other implementation + * byte for byte — too lax and we accept state a peer rejects, too strict and we + * reject a group somebody else made. + * + * It is not a general URL library. It handles exactly the shape the component + * allows — `https`, a host, no userinfo, no fragment — and refuses everything + * else rather than guessing. + * + * **Known limit: no IDNA.** A host with non-ASCII characters is refused instead + * of punycoded. That costs nothing on the decode side, where it matters: a + * conformant producer already stored the punycoded form (which is ASCII and + * passes through untouched), and a stored raw-Unicode host is non-normalized + * and must be rejected anyway. It only stops us from *accepting* a + * Unicode-typed host from our own user, who can paste the punycode form. + */ +object MarmotHttpsUrl { + const val MAX_BYTES = 2048 + + private const val SCHEME = "https://" + private const val DEFAULT_PORT = "443" + + /** + * Parse [raw] and return its WHATWG serialization. + * + * @throws IllegalArgumentException when the URL is not a valid group-avatar + * URL, or when normalizing it would need something this does not do. + */ + fun normalize(raw: String): String { + require(raw.isNotEmpty()) { "avatar URL must not be empty" } + require(raw.encodeToByteArray().size <= MAX_BYTES) { "avatar URL exceeds $MAX_BYTES bytes" } + + val schemeEnd = raw.indexOf("://") + require(schemeEnd > 0) { "avatar URL must be an absolute https URL" } + require(raw.substring(0, schemeEnd).lowercase() == "https") { "avatar URL scheme must be https" } + + var rest = raw.substring(schemeEnd + 3) + require(!rest.contains('#')) { "avatar URL must not include a fragment" } + + // The authority runs to the first "/" or "?" — everything after is path + // and query. + val authorityEnd = rest.indexOfFirst { it == '/' || it == '?' }.let { if (it < 0) rest.length else it } + val authority = rest.substring(0, authorityEnd) + rest = rest.substring(authorityEnd) + require(!authority.contains('@')) { "avatar URL must not include credentials" } + require(authority.isNotEmpty()) { "avatar URL must include a host" } + + val (host, port) = splitHostPort(authority) + require(host.isNotEmpty()) { "avatar URL must include a host" } + require(host.all { it.code < 0x80 }) { + "avatar URL host must be ASCII — encode an international host as punycode first" + } + + val queryStart = rest.indexOf('?') + val rawPath = if (queryStart < 0) rest else rest.substring(0, queryStart) + val rawQuery = if (queryStart < 0) null else rest.substring(queryStart + 1) + + val out = StringBuilder(SCHEME) + out.append(host.lowercase()) + if (port != null && port != DEFAULT_PORT) out.append(':').append(port) + out.append(normalizePath(rawPath)) + if (rawQuery != null) out.append('?').append(percentEncode(rawQuery, QUERY_KEEP)) + + val normalized = out.toString() + require(normalized.encodeToByteArray().size <= MAX_BYTES) { "avatar URL exceeds $MAX_BYTES bytes" } + return normalized + } + + /** True when [normalize] accepts [raw] and returns it unchanged. */ + fun isNormalized(raw: String): Boolean = + try { + normalize(raw) == raw + } catch (_: IllegalArgumentException) { + false + } + + /** + * Whether this client should be willing to FETCH [raw]. + * + * Deliberately separate from [normalize]: a URL can be perfectly valid group + * state and still be somewhere we refuse to go. Validity is the group's + * business and is the same for every member; contact is ours alone, and the + * spec is explicit that it "MUST NOT affect component or commit validity". + * + * The rule is the ordinary SSRF one — no loopback, no link-local, no private + * range — so a group avatar cannot make a member probe its own network. + */ + fun isSafeToContact(raw: String): Boolean { + val host = + try { + hostOf(normalize(raw)) + } catch (_: IllegalArgumentException) { + return false + } + if (host == "localhost" || host.endsWith(".localhost")) return false + if (host.startsWith("[")) return !isNonRoutableIpv6(host.trim('[', ']')) + val v4 = host.split('.').mapNotNull { it.toIntOrNull() } + if (v4.size == 4 && v4.all { it in 0..255 }) return !isNonRoutableIpv4(v4) + return true + } + + private fun hostOf(normalized: String): String { + val rest = normalized.substring(SCHEME.length) + val end = rest.indexOfFirst { it == '/' || it == '?' }.let { if (it < 0) rest.length else it } + return splitHostPort(rest.substring(0, end)).first + } + + private fun isNonRoutableIpv4(o: List): Boolean = + o[0] == 0 || + o[0] == 127 || + o[0] == 10 || + (o[0] == 172 && o[1] in 16..31) || + (o[0] == 192 && o[1] == 168) || + (o[0] == 169 && o[1] == 254) || + (o[0] == 100 && o[1] in 64..127) || + o[0] >= 224 + + private fun isNonRoutableIpv6(addr: String): Boolean { + val a = addr.lowercase() + if (a == "::1" || a == "::") return true + // Unique-local (fc00::/7) and link-local (fe80::/10). + return a.startsWith("fc") || a.startsWith("fd") || a.startsWith("fe8") || + a.startsWith("fe9") || a.startsWith("fea") || a.startsWith("feb") + } + + /** Splits `host:port`, keeping an IPv6 literal's brackets on the host. */ + private fun splitHostPort(authority: String): Pair { + if (authority.startsWith("[")) { + val close = authority.indexOf(']') + require(close > 0) { "avatar URL has an unterminated IPv6 host" } + val host = authority.substring(0, close + 1) + val tail = authority.substring(close + 1) + if (tail.isEmpty()) return host to null + require(tail.startsWith(":")) { "avatar URL has a malformed IPv6 authority" } + return host to validPort(tail.substring(1)) + } + val colon = authority.lastIndexOf(':') + if (colon < 0) return authority to null + return authority.substring(0, colon) to validPort(authority.substring(colon + 1)) + } + + private fun validPort(port: String): String { + require(port.isNotEmpty() && port.all { it.isDigit() }) { "avatar URL has a malformed port" } + val value = port.toIntOrNull() + require(value != null && value in 1..65535) { "avatar URL port is out of range" } + // WHATWG serializes the port as a decimal number, so "0443" is "443". + return value.toString() + } + + /** + * Resolve dot segments and percent-encode what the path set demands. An + * empty path serializes as `/`. + */ + private fun normalizePath(rawPath: String): String { + if (rawPath.isEmpty()) return "/" + // WHATWG keeps the path as a segment LIST and serializes it as "/" + + // segments joined by "/". A trailing slash is therefore a final EMPTY + // segment, not a suffix — which is also why "/a/." ends in a slash: the + // dot segment is dropped and an empty one takes its place. + val segments = rawPath.removePrefix("/").split('/') + val out = ArrayList() + segments.forEachIndexed { index, segment -> + val isLast = index == segments.size - 1 + when { + isDoubleDot(segment) -> { + if (out.isNotEmpty()) out.removeAt(out.size - 1) + if (isLast) out.add("") + } + + isSingleDot(segment) -> if (isLast) out.add("") + + else -> out.add(percentEncode(segment, PATH_KEEP)) + } + } + return "/" + out.joinToString("/") + } + + /** WHATWG counts `%2e` as a dot for segment resolution, case-insensitively. */ + private fun isSingleDot(segment: String) = segment == "." || segment.equals("%2e", ignoreCase = true) + + private fun isDoubleDot(segment: String): Boolean { + val s = segment.lowercase() + return s == ".." || s == ".%2e" || s == "%2e." || s == "%2e%2e" + } + + /** + * Percent-encode every byte outside [keep], leaving an existing `%XX` + * sequence exactly as it was found. + * + * Preserving is not laziness: the reference serializer does not re-case or + * decode what is already encoded (`%7e` stays `%7e`, `%7E` stays `%7E`), and + * "canonicalising" either way would make our bytes differ from a peer's for + * the same URL. + */ + private fun percentEncode( + value: String, + keep: (Char) -> Boolean, + ): String { + val out = StringBuilder(value.length) + var i = 0 + while (i < value.length) { + val c = value[i] + if (c == '%' && i + 2 < value.length && value[i + 1].isHex() && value[i + 2].isHex()) { + out.append(value, i, i + 3) + i += 3 + continue + } + if (keep(c)) { + out.append(c) + } else { + for (b in c.toString().encodeToByteArray()) { + out.append('%').append(HEX[(b.toInt() shr 4) and 0xf]).append(HEX[b.toInt() and 0xf]) + } + } + i++ + } + return out.toString() + } + + private fun Char.isHex() = this in '0'..'9' || this in 'a'..'f' || this in 'A'..'F' + + private const val HEX = "0123456789ABCDEF" + + /** + * WHATWG "path percent-encode set": the C0 set (below 0x20, above 0x7E) + * plus space, `"`, `<`, `>`, backtick, `#`, `?`, `{`, `}`. + */ + private val PATH_KEEP: (Char) -> Boolean = { c -> + c.code in 0x20..0x7e && c != ' ' && c != '"' && c != '<' && c != '>' && c != '`' && c != '#' && c != '?' && c != '{' && c != '}' + } + + /** + * WHATWG "special-query percent-encode set": the C0 set plus space, `"`, + * `#`, `<`, `>`, and — because `https` is a special scheme — `'`. + */ + private val QUERY_KEEP: (Char) -> Boolean = { c -> + c.code in 0x20..0x7e && c != ' ' && c != '"' && c != '#' && c != '<' && c != '>' && c != '\'' + } +} diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt new file mode 100644 index 0000000000..993105d109 --- /dev/null +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt @@ -0,0 +1,235 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter +import org.junit.Assert.assertEquals +import org.junit.Assert.assertThrows +import org.junit.Assert.assertTrue +import org.junit.Test + +/** + * `marmot.group.avatar-url.v1` (`0x8007`) — the plain-https alternative to a + * Blossom group image. + * + * The load-bearing rule is normalization. The spec says a producer stores the + * WHATWG-serialized form and "a decoder re-runs validation and the WHATWG + * parse-and-serialize on the decoded `url` and MUST reject state whose stored + * URL bytes differ from the serializer's output". So our normalizer has to + * agree with everybody else's byte for byte: too lax and we accept state a peer + * rejects, too strict and we reject a group MDK made. + * + * The expectations below are not invented. They are the output of the Rust + * `url` 2.5.8 crate — the one MDK calls through + * `validate_and_normalize_group_avatar_url` — run over each input. + */ +class GroupAvatarUrlV1Test { + @Test + fun normalizationMatchesTheReferenceSerializerCaseForCase() { + val vectors = + listOf( + // scheme + host lowercased, default port dropped + "https://CDN.Example.COM:443/a.png" to "https://cdn.example.com/a.png", + // an empty path serializes as "/" + "https://cdn.example.com" to "https://cdn.example.com/", + "https://cdn.example.com/" to "https://cdn.example.com/", + // dot segments resolve + "https://cdn.example.com/a/./b/../c.png" to "https://cdn.example.com/a/c.png", + // percent-encoding case is PRESERVED, not canonicalised, and an + // already-encoded sequence is never decoded + "https://cdn.example.com/%7euser/a.png" to "https://cdn.example.com/%7euser/a.png", + "https://cdn.example.com/%7Euser/a.png" to "https://cdn.example.com/%7Euser/a.png", + "https://cdn.example.com/A%2fB.png" to "https://cdn.example.com/A%2fB.png", + // characters outside the path set are encoded, in UPPERCASE hex + "https://cdn.example.com/a b.png" to "https://cdn.example.com/a%20b.png", + "https://cdn.example.com/ünïcode.png" to "https://cdn.example.com/%C3%BCn%C3%AFcode.png", + // a non-default port stays + "https://cdn.example.com:8443/a.png" to "https://cdn.example.com:8443/a.png", + // the query is carried through, including a bare trailing "?" + "https://cdn.example.com/a.png?x=1&y=2" to "https://cdn.example.com/a.png?x=1&y=2", + "https://cdn.example.com/a.png?" to "https://cdn.example.com/a.png?", + // an IPv6 literal lowercases inside its brackets + "https://[2001:DB8::1]/a.png" to "https://[2001:db8::1]/a.png", + // an already-punycoded host is left alone + "https://xn--bcher-kva.example/a.png" to "https://xn--bcher-kva.example/a.png", + ) + + for ((raw, expected) in vectors) { + assertEquals("normalizing $raw", expected, MarmotHttpsUrl.normalize(raw)) + } + } + + @Test + fun normalizationIsIdempotent() { + // A decoder compares stored bytes against its own serialization, so a + // normalizer that moves on the second pass would reject its own output. + for (raw in listOf( + "https://CDN.Example.COM:443/a/./b/../c.png?x=1", + "https://cdn.example.com/%7euser/a b.png", + "https://[2001:DB8::1]:8443/", + )) { + val once = MarmotHttpsUrl.normalize(raw) + assertEquals(once, MarmotHttpsUrl.normalize(once)) + } + } + + @Test + fun onlyHttpsWithAHostAndNoUserinfoOrFragmentIsValid() { + for (bad in listOf( + "http://cdn.example.com/a.png", + "ftp://cdn.example.com/a.png", + "blossom://cdn.example.com/a.png", + "https://user:pass@cdn.example.com/a.png", + "https://user@cdn.example.com/a.png", + "https://cdn.example.com/a.png#frag", + "https:///a.png", + "https://", + "cdn.example.com/a.png", + "", + )) { + assertThrows("must reject $bad", IllegalArgumentException::class.java) { + MarmotHttpsUrl.normalize(bad) + } + } + } + + @Test + fun contactSafetyIsNotAValidityQuestion() { + // "Whether a client contacts or renders the parsed destination is local + // application policy and MUST NOT affect component or commit validity." + // A group whose avatar points at localhost is still a valid group. + for (raw in listOf( + "https://localhost/avatar.png", + "https://127.0.0.1/avatar.png", + "https://10.0.0.1/avatar.png", + "https://[::1]/avatar.png", + )) { + MarmotHttpsUrl.normalize(raw) + } + assertTrue(MarmotHttpsUrl.isSafeToContact("https://cdn.example.com/a.png")) + assertTrue(!MarmotHttpsUrl.isSafeToContact("https://localhost/a.png")) + assertTrue(!MarmotHttpsUrl.isSafeToContact("https://127.0.0.1/a.png")) + assertTrue(!MarmotHttpsUrl.isSafeToContact("https://10.0.0.1/a.png")) + assertTrue(!MarmotHttpsUrl.isSafeToContact("https://192.168.1.1/a.png")) + assertTrue(!MarmotHttpsUrl.isSafeToContact("https://[::1]/a.png")) + } + + @Test + fun aHostThatWouldNeedIdnaIsRefusedRatherThanGuessedAt() { + // We do not implement IDNA/punycode, so we cannot produce the encoded + // form a peer expects. Refusing at the producer is safe; it costs + // nothing on decode, because a conformant producer already stored + // punycode and a raw Unicode host is non-normalized anyway. + val failure = + assertThrows(IllegalArgumentException::class.java) { + MarmotHttpsUrl.normalize("https://bücher.example/a.png") + } + assertTrue(failure.message.orEmpty().contains("punycode")) + } + + @Test + fun stateRoundTripsWithAndWithoutHints() { + val full = + GroupAvatarUrlV1( + url = "https://cdn.example.com/avatar.png", + dim = "512x512".encodeToByteArray(), + thumbhash = byteArrayOf(1, 2, 3), + ) + assertEquals(full, GroupAvatarUrlV1.decode(full.encode())) + + val urlOnly = GroupAvatarUrlV1(url = "https://cdn.example.com/avatar.png") + assertEquals(urlOnly, GroupAvatarUrlV1.decode(urlOnly.encode())) + + val absent = GroupAvatarUrlV1.ABSENT + assertEquals(absent, GroupAvatarUrlV1.decode(absent.encode())) + assertTrue(GroupAvatarUrlV1.decode(absent.encode()).isAbsent) + } + + @Test + fun anAbsentAvatarCannotCarryHints() { + assertThrows(IllegalArgumentException::class.java) { + GroupAvatarUrlV1(url = "", dim = "512x512".encodeToByteArray()).encode() + } + // …and the same state rejected on the way in, hand-built. + val writer = TlsWriter() + writer.putOpaqueVarInt(ByteArray(0)) + writer.putOpaqueVarInt("512x512".encodeToByteArray()) + writer.putOpaqueVarInt(ByteArray(0)) + assertThrows(IllegalArgumentException::class.java) { GroupAvatarUrlV1.decode(writer.toByteArray()) } + } + + @Test + fun decodeRejectsAStoredUrlThatIsNotNormalized() { + val writer = TlsWriter() + writer.putOpaqueVarInt("https://CDN.EXAMPLE.COM/a.png".encodeToByteArray()) + writer.putOpaqueVarInt(ByteArray(0)) + writer.putOpaqueVarInt(ByteArray(0)) + val failure = assertThrows(IllegalArgumentException::class.java) { GroupAvatarUrlV1.decode(writer.toByteArray()) } + assertTrue(failure.message.orEmpty().contains("normalized")) + } + + @Test + fun decodeRejectsTrailingBytes() { + val encoded = GroupAvatarUrlV1(url = "https://cdn.example.com/a.png").encode() + assertThrows(IllegalArgumentException::class.java) { + GroupAvatarUrlV1.decode(encoded + byteArrayOf(0)) + } + } + + @Test + fun theBoundsAreEnforcedOnBothFields() { + val longPath = "https://cdn.example.com/" + "a".repeat(2100) + assertThrows(IllegalArgumentException::class.java) { MarmotHttpsUrl.normalize(longPath) } + assertThrows(IllegalArgumentException::class.java) { + GroupAvatarUrlV1(url = "https://cdn.example.com/a.png", dim = ByteArray(257)).encode() + } + assertThrows(IllegalArgumentException::class.java) { + GroupAvatarUrlV1(url = "https://cdn.example.com/a.png", thumbhash = ByteArray(257)).encode() + } + } + + @Test + fun aHintTheRendererCannotReadIsNotAValidityProblem() { + // "A hint the renderer cannot interpret is treated as absent and MUST + // NOT invalidate otherwise-valid group state." + val weird = + GroupAvatarUrlV1( + url = "https://cdn.example.com/a.png", + dim = byteArrayOf(0xff.toByte(), 0xfe.toByte()), + thumbhash = byteArrayOf(0x00), + ) + val decoded = GroupAvatarUrlV1.decode(weird.encode()) + assertEquals(weird, decoded) + assertEquals(null, decoded.dimensions) + } + + @Test + fun dimensionsAreParsedOnlyWhenTheyAreTheConventionalShape() { + assertEquals( + 512 to 512, + GroupAvatarUrlV1("https://cdn.example.com/a.png", dim = "512x512".encodeToByteArray()).dimensions, + ) + assertEquals( + null, + GroupAvatarUrlV1("https://cdn.example.com/a.png", dim = "not-a-size".encodeToByteArray()).dimensions, + ) + } +} From 3a5c25ad36253a957f05a196c79985a7a8d2f44f Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 15:30:50 +0000 Subject: [PATCH 34/79] feat(marmot): the direct QUIC path, and a pin instead of blind trust MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Two halves of the same gap in `transports/quic.md`. **The direct path.** The binding has a second delivery mode we had not built: the sender dials the receiver, opens one unidirectional stream and writes records with no control envelope at all. It is deliberately smaller than the broker path — the dialed endpoint is already the one receiver, so there is no room to claim — and it negotiates its own ALPN so an incompatible change to either mode cannot reach the other. Note the inverted direction: here the RECEIVER listens and the SENDER dials, which is also why v1 gives it no start-payload discovery and it is only usable against an endpoint known out of band. Only the sending half is here. `:quic` is a client stack with no server role, so this module can dial a direct receiver but cannot be one; that is recorded in the README rather than half-built. **The pin.** Preview endpoints and brokers are commonly self-signed and the binding expects that, saying a client MAY pin by exact DER or SHA-256 fingerprint. What we had instead was `PermissiveCertificateValidator` on the CLI path, which is not a weaker trust model — it is none, and anyone on the path can be the broker. `PinnedCertificateValidator` replaces the chain and the hostname check and nothing else: the peer still has to sign the TLS transcript with the pinned certificate's private key, so copying a public certificate off the wire buys an attacker nothing. `amy marmot stream send|watch` takes `--pin-sha256`, and `--insecure` still exists for a throwaway local broker but now has to be asked for by name. Both are verified against the reference implementation, which is the only thing that can tell an ALPN string, a stream direction, an absent envelope and a frame prefix from an implementation agreeing with itself: our direct sender against `wn stream receive`, and the pin — accepted and refused — against a real handshake with `marmot-quic-broker`. One thing that only showed up under a real handshake: a certificate the validator refuses closes the connection before it is established, and the transport was reporting that as PeerClosed. A caller walking a candidate list reads that kind to decide what to do next, and "never connected" is not "the peer hung up on us", so it is classified on the connection's actual status now. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/cli/commands/StreamCommands.kt | 67 +++++- .../marmot/MarmotAgentStreamWatcherTest.kt | 6 + marmotQuic/README.md | 58 ++++- marmotQuic/build.gradle.kts | 8 +- .../QuicAgentTextStreamTransport.kt | 82 +++++-- .../marmotquic/MarmotQuicBrokerInteropTest.kt | 60 +++++ .../marmotquic/MarmotQuicDirectInteropTest.kt | 214 ++++++++++++++++++ .../transport/MarmotQuicStreamTransport.kt | 29 +++ .../quic/tls/CertificateVerifySignature.kt | 119 ++++++++++ .../quic/tls/JdkCertificateValidator.kt | 76 +------ .../quic/tls/PinnedCertificateValidator.kt | 147 ++++++++++++ .../tls/PinnedCertificateValidatorTest.kt | 163 +++++++++++++ 12 files changed, 917 insertions(+), 112 deletions(-) create mode 100644 marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicDirectInteropTest.kt create mode 100644 quic/src/jvmAndroid/kotlin/com/vitorpamplona/quic/tls/CertificateVerifySignature.kt create mode 100644 quic/src/jvmAndroid/kotlin/com/vitorpamplona/quic/tls/PinnedCertificateValidator.kt create mode 100644 quic/src/jvmTest/kotlin/com/vitorpamplona/quic/tls/PinnedCertificateValidatorTest.kt diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/StreamCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/StreamCommands.kt index e7e1ef3b70..cee51c9763 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/StreamCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/StreamCommands.kt @@ -36,7 +36,10 @@ import com.vitorpamplona.quartz.marmot.mls.crypto.MlsCryptoProvider import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quic.tls.CertificateValidator +import com.vitorpamplona.quic.tls.JdkCertificateValidator import com.vitorpamplona.quic.tls.PermissiveCertificateValidator +import com.vitorpamplona.quic.tls.PinnedCertificateValidator import kotlinx.coroutines.withTimeoutOrNull /** @@ -56,8 +59,10 @@ object StreamCommands { | marmot stream start GID [--stream-id HEX] [--broker quic://HOST:PORT[,…]] | publish the kind:1200 that anchors a stream; prints stream_id + start_event_id | - | marmot stream send GID --stream-id HEX --start-event-id HEX --broker URI TEXT… - | push TEXT as TextDelta records to the broker; prints the transcript to finish with + | marmot stream send GID --stream-id HEX --start-event-id HEX + | (--broker URI | --direct quic://HOST:PORT) TEXT… + | push TEXT as TextDelta records; --direct dials the receiver point to point + | (ALPN marmot.quic_stream.v1, no control envelope) instead of a broker | | marmot stream watch GID [--stream-id HEX] [--timeout SECS] | find the kind:1200 in the group, subscribe over QUIC, fold the preview @@ -67,6 +72,12 @@ object StreamCommands { | |Every record is encrypted under the group's own MLS exporter secret, so a |broker relays ciphertext and learns only which room it belongs to. + | + |TLS trust for the QUIC hop (send and watch): + | --pin-sha256 HEX[,HEX…] trust exactly these leaf certificates (self-signed + | endpoints; colons and whitespace are ignored) + | --insecure accept any certificate — local testing only + |Without either, the platform trust store decides. """.trimMargin() suspend fun dispatch( @@ -141,8 +152,16 @@ object StreamCommands { val streamId = args.flag("stream-id") val startEventId = args.flag("start-event-id") val broker = args.flag("broker") - if (positional.size < 2 || streamId == null || startEventId == null || broker == null) { - return Output.error("bad_args", "stream send GID --stream-id HEX --start-event-id HEX --broker URI TEXT…") + // The two delivery modes are alternatives, not a fallback chain: one + // dials a broker room, the other dials the receiver itself, and they + // negotiate different ALPNs. Picking silently when both are given + // would hide which one actually carried the records. + val direct = args.flag("direct") + if (positional.size < 2 || streamId == null || startEventId == null || (broker == null) == (direct == null)) { + return Output.error( + "bad_args", + "stream send GID --stream-id HEX --start-event-id HEX (--broker URI | --direct quic://HOST:PORT) TEXT…", + ) } Context.open(dataDir).use { ctx -> @@ -165,13 +184,20 @@ object StreamCommands { epoch = anchorEpoch, ) val publisher = AgentTextStreamPublisher.open(crypto, InMemoryAgentTextStreamSequenceStore()) - val transport = QuicAgentTextStreamTransport(certificateValidator = PermissiveCertificateValidator()) + val transport = QuicAgentTextStreamTransport(certificateValidator = certificateValidator(args)) val stream = try { - transport.publish(broker, streamId.hexToByteArray(), startEventId.hexToByteArray()) + if (direct != null) { + transport.sendDirect(direct, streamId.hexToByteArray(), startEventId.hexToByteArray()) + } else { + transport.publish(broker!!, streamId.hexToByteArray(), startEventId.hexToByteArray()) + } } catch (e: Exception) { - return Output.error("broker_unreachable", "${e.message}") + return Output.error( + if (direct != null) "receiver_unreachable" else "broker_unreachable", + "${e.message}", + ) } try { for (text in positional.drop(1)) { @@ -187,6 +213,8 @@ object StreamCommands { "group_id" to gid, "stream_id" to streamId, "start_event_id" to startEventId, + "mode" to if (direct != null) "direct" else "broker", + "endpoint" to (direct ?: broker), "records" to positional.size - 1, "epoch" to crypto.context.mlsEpoch, // What `stream finish` has to publish so a receiver can @@ -199,6 +227,29 @@ object StreamCommands { } } + /** + * The TLS trust policy for the QUIC hop, from the flags. + * + * Pinning is the interesting one and the binding calls it out: preview + * endpoints and brokers are commonly self-signed, so a client MAY pin the + * endpoint certificate by SHA-256 fingerprint instead of chaining to a CA. + * `--insecure` stays available because a local test broker mints a fresh + * certificate on every boot, but it is not a weaker trust model — it is + * none, so it has to be asked for by name. + */ + private fun certificateValidator(args: Args): CertificateValidator { + val pins = + args + .flag("pin-sha256") + ?.split(',') + ?.map { it.trim() } + ?.filter { it.isNotEmpty() } + .orEmpty() + if (pins.isNotEmpty()) return PinnedCertificateValidator.ofSha256Hex(*pins.toTypedArray()) + if (args.bool("insecure")) return PermissiveCertificateValidator() + return JdkCertificateValidator() + } + private suspend fun watch( dataDir: DataDir, rest: Array, @@ -250,7 +301,7 @@ object StreamCommands { epoch = anchorEpoch, ) val subscriber = AgentTextStreamSubscriber(crypto) - val transport = QuicAgentTextStreamTransport(certificateValidator = PermissiveCertificateValidator()) + val transport = QuicAgentTextStreamTransport(certificateValidator = certificateValidator(args)) // "A receiver tries advertised candidates in listed order"; the // first that yields the matching stream wins. diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotAgentStreamWatcherTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotAgentStreamWatcherTest.kt index ca6a582a5d..91f8afb146 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotAgentStreamWatcherTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotAgentStreamWatcherTest.kt @@ -69,6 +69,12 @@ class MarmotAgentStreamWatcherTest { startEventId: ByteArray, ): MarmotQuicStream = error("the watcher never publishes") + override suspend fun sendDirect( + candidate: String, + streamId: ByteArray, + startEventId: ByteArray, + ): MarmotQuicStream = error("the watcher never sends") + override suspend fun subscribe( candidate: String, streamId: ByteArray, diff --git a/marmotQuic/README.md b/marmotQuic/README.md index b0ac4608e5..5153ec4204 100644 --- a/marmotQuic/README.md +++ b/marmotQuic/README.md @@ -26,10 +26,19 @@ multiplexing, loss recovery and the UDP socket. `publish` control envelope, then record frames. - A **subscriber** opens a client-initiated *bidirectional* stream, writes a `subscribe` control envelope, and reads the fan-out on the return direction. +- A **direct sender** opens a client-initiated *unidirectional* stream and + writes record frames with **no** control envelope — the dialed endpoint is + already the one receiver, so there is no room to name. -A broker rejects the wrong pairing. Both roles frame everything the same way: -`uint32 frame_len || bytes`, the control envelope first and then each -`AgentTextStreamRecordV1`. +A broker rejects the wrong pairing. Every role frames the same way: +`uint32 frame_len || bytes` — on the broker path the control envelope first and +then each `AgentTextStreamRecordV1`, on the direct path records from the first +byte. + +Note the direct path's connection direction: the **receiver** listens and the +**sender** dials, inverted from the broker path where both ends dial the +broker. Only the sender half is here; `:quic` is a client stack with no server +role, so this module cannot expose a direct-path endpoint of its own. The codecs — control envelope, frame reader/writer with both caps, `quic://` candidate parsing — live in `quartz` next to the rest of agent-text-stream, @@ -43,24 +52,47 @@ broker holds no key and learns only the routing pair `(stream_id, start_event_id)` plus ciphertext. It is an untrusted forwarder, and a candidate that points somewhere hostile still cannot forge a record. +## TLS trust + +Preview endpoints and brokers are commonly self-signed, and the binding says so: +a client MAY pin the endpoint certificate by exact DER or SHA-256 fingerprint +instead of chaining to a CA. `PinnedCertificateValidator` (in `:quic`) is that +pin. It replaces the chain and the hostname check and nothing else — the peer +still has to sign the TLS transcript with the pinned certificate's private key, +so copying a public certificate off the wire buys an attacker nothing. + +`amy marmot stream send|watch` takes `--pin-sha256 HEX[,HEX…]`; the reference +broker prints its own `server_cert_sha256_fingerprint` in its startup JSON. + ## Interop tests -`MarmotQuicBrokerInteropTest` drives our publisher and subscriber through -MDK's own reference broker. Start it from an MDK checkout: +`MarmotQuicBrokerInteropTest` drives our publisher and subscriber through MDK's +own reference broker, and `MarmotQuicDirectInteropTest` drives our direct +sender against MDK's direct receiver (`wn stream receive`). Both are the only +way to know the binding is right: an ALPN string, a stream direction, a missing +control envelope and a frame prefix are all things an implementation will +happily agree with itself about. + +Start the broker from an MDK checkout: ```bash -cargo build --release --bin marmot-quic-broker +cargo build --release --bin marmot-quic-broker --bin wn ./target/release/marmot-quic-broker --bind 127.0.0.1:4450 --json ``` then: ```bash -./gradlew :marmotQuic:jvmTest -DmarmotQuicBroker=127.0.0.1:4450 +./gradlew :marmotQuic:jvmTest \ + -DmarmotQuicBroker=127.0.0.1:4450 \ + -DmarmotQuicBrokerPin= \ + -DmarmotWn=/path/to/mdk/target/release/wn ``` -Without the property the cases skip visibly, so an ordinary `./gradlew test` -never needs a broker on the machine. +Each property gates its own cases and they skip visibly without it, so an +ordinary `./gradlew test` never needs the reference implementation on the +machine. `-DmarmotWn` needs no running process: the test spawns +`wn stream receive` itself on a free port. ## Using it @@ -70,6 +102,7 @@ run it in both directions against MDK. ```bash amy marmot stream start GID --broker quic://127.0.0.1:4450 amy marmot stream send GID --stream-id … --start-event-id … --broker … "hello" +amy marmot stream send GID --stream-id … --start-event-id … --direct quic://host:port "hello" amy marmot stream watch GID --stream-id … amy marmot stream finish GID --stream-id … --transcript-hash … --chunk-count N "hello" ``` @@ -80,6 +113,7 @@ amy marmot stream finish GID --stream-id … --transcript-hash … --chunk-count an agent's job, and no agent runs in the app yet. Only `amy` publishes one. - The desktop app has no Marmot chat screen at all, so there is nothing to render a preview into. The watcher it would use already lives in `commons`. -- The direct path (`marmot.quic_stream.v1`) is unimplemented. v1 defines no - start-payload candidate format for it, so it is only reachable with an - endpoint known out of band. +- The direct path's **receiving** half. `:quic` has no server role, so this + module can dial a direct receiver but cannot be one. v1 also defines no + start-payload candidate format for the direct path, so a sender only reaches + a receiver whose endpoint it already knows out of band. diff --git a/marmotQuic/build.gradle.kts b/marmotQuic/build.gradle.kts index 8039d51a9d..4c95badf3e 100644 --- a/marmotQuic/build.gradle.kts +++ b/marmotQuic/build.gradle.kts @@ -78,9 +78,11 @@ kotlin { } } -// Forward the broker opt-in from the Gradle JVM to the test workers. Without -// this, `-DmarmotQuicBroker=...` never reaches the test and every interop -// case silently skips. Mirrors the same forwarding in `:nestsClient`. +// Forward the interop opt-ins from the Gradle JVM to the test workers. +// Without this, `-DmarmotQuicBroker=...` / `-DmarmotWn=...` never reach the +// tests and every interop case silently skips. Mirrors `:nestsClient`. tasks.withType().configureEach { System.getProperty("marmotQuicBroker")?.let { systemProperty("marmotQuicBroker", it) } + System.getProperty("marmotQuicBrokerPin")?.let { systemProperty("marmotQuicBrokerPin", it) } + System.getProperty("marmotWn")?.let { systemProperty("marmotWn", it) } } diff --git a/marmotQuic/src/jvmAndroid/kotlin/com/vitorpamplona/marmotquic/QuicAgentTextStreamTransport.kt b/marmotQuic/src/jvmAndroid/kotlin/com/vitorpamplona/marmotquic/QuicAgentTextStreamTransport.kt index 5cd46aa81e..7edeca89df 100644 --- a/marmotQuic/src/jvmAndroid/kotlin/com/vitorpamplona/marmotquic/QuicAgentTextStreamTransport.kt +++ b/marmotQuic/src/jvmAndroid/kotlin/com/vitorpamplona/marmotquic/QuicAgentTextStreamTransport.kt @@ -54,8 +54,9 @@ import kotlinx.coroutines.withTimeoutOrNull * everything under that: the QUIC connection, TLS 1.3, ALPN negotiation, * stream multiplexing and the UDP socket. * - * One stream per delivery: a publisher's uni stream or a subscriber's bidi - * stream owns its connection and closes it on [MarmotQuicStream.close]. That + * One stream per delivery: a publisher's uni stream, a direct sender's uni + * stream, or a subscriber's bidi stream owns its connection and closes it on + * [MarmotQuicStream.close]. That * is the shape the binding describes — a room is a stream — and it keeps a * failed candidate from leaving a connection behind. */ @@ -89,16 +90,53 @@ class QuicAgentTextStreamTransport( startEventId: ByteArray, ): MarmotQuicStream = open(candidate, streamId, startEventId, BrokerControlType.SUBSCRIBE) + /** + * The direct path: dial the receiver, open one uni stream, write records. + * + * Two things separate it from [publish] beyond the ALPN. There is no + * control envelope — the dialed endpoint is already the one receiver, so + * there is no room to name, and the first bytes on the stream are a record + * frame. And [startEventId] never leaves this process: it is validated for + * shape so a caller cannot pass a placeholder that would later disagree + * with the record key and transcript hash it is bound into, but nothing is + * written for it. A direct endpoint learns it only if the out-of-band + * setup supplied it separately. + * + * Only the SENDER half lives here. The receiver half has to listen, and + * `:quic` is a client stack with no server role — so a direct-path + * receiver is not something this module can offer yet. + */ + override suspend fun sendDirect( + candidate: String, + streamId: ByteArray, + startEventId: ByteArray, + ): MarmotQuicStream = open(candidate, streamId, startEventId, role = null) + private suspend fun open( candidate: String, streamId: ByteArray, startEventId: ByteArray, - role: BrokerControlType, + /** The broker role to claim, or null for the envelope-less direct path. */ + role: BrokerControlType?, ): MarmotQuicStream { val endpoint = QuicEndpointCandidate.parse(candidate) ?: throw MarmotQuicException(MarmotQuicException.Kind.BadCandidate, "unusable quic:// candidate") + val alpn = if (role == null) MarmotQuicAlpn.DIRECT else MarmotQuicAlpn.BROKER + if (role == null) { + // Same bounds the broker envelope enforces, applied even though + // nothing is encoded: a stream id or start event id this layer + // would refuse to route is one the record key and transcript hash + // should not be built on either. + require(streamId.size in 1..QuicBrokerControlEnvelopeV1.MAX_ID_LEN) { + "direct stream_id must be 1..${QuicBrokerControlEnvelopeV1.MAX_ID_LEN} bytes" + } + require(startEventId.size in 1..QuicBrokerControlEnvelopeV1.MAX_ID_LEN) { + "direct start_event_id must be 1..${QuicBrokerControlEnvelopeV1.MAX_ID_LEN} bytes" + } + } + val socket = try { UdpSocket.connect(endpoint.host, endpoint.port) @@ -113,7 +151,7 @@ class QuicAgentTextStreamTransport( serverName = endpoint.serverNameIndication ?: endpoint.host, config = QuicConnectionConfig(), tlsCertificateValidator = certificateValidator, - alpnList = listOf(MarmotQuicAlpn.BROKER), + alpnList = listOf(alpn), ) val driver = QuicConnectionDriver(connection, socket, parentScope) driver.start() @@ -133,11 +171,11 @@ class QuicAgentTextStreamTransport( // An endpoint that did not take our ALPN is not a Marmot endpoint, // whatever else it may be. Fail here so the caller moves to the // next candidate rather than waiting on records that never come. - val alpn = connection.tls.negotiatedAlpn - if (alpn == null || !alpn.contentEquals(MarmotQuicAlpn.BROKER)) { + val negotiated = connection.tls.negotiatedAlpn + if (negotiated == null || !negotiated.contentEquals(alpn)) { throw MarmotQuicException( MarmotQuicException.Kind.AlpnRejected, - "endpoint negotiated ${alpn?.decodeToString()} instead of ${MarmotQuicAlpn.BROKER.decodeToString()}", + "endpoint negotiated ${negotiated?.decodeToString()} instead of ${alpn.decodeToString()}", ) } @@ -146,20 +184,36 @@ class QuicAgentTextStreamTransport( // one. A broker rejects the wrong pairing. val stream = when (role) { - BrokerControlType.PUBLISH -> connection.openUniStream() + BrokerControlType.PUBLISH, null -> connection.openUniStream() BrokerControlType.SUBSCRIBE -> connection.openBidiStream() } - // The control envelope is the first frame, framed exactly like a - // record frame — length-prefixed the same way, so a broker reads - // both with one framer. - stream.send.enqueue(frameEnvelope(QuicBrokerControlEnvelopeV1(role, streamId, startEventId))) - driver.wakeup() + if (role != null) { + // The control envelope is the first frame, framed exactly like + // a record frame — length-prefixed the same way, so a broker + // reads both with one framer. The direct path writes none: its + // stream opens straight into records. + stream.send.enqueue(frameEnvelope(QuicBrokerControlEnvelopeV1(role, streamId, startEventId))) + driver.wakeup() + } return QuicStreamDelivery(stream, driver, maxPlaintextFrameLen) } catch (t: Throwable) { driver.close() - throw if (t is MarmotQuicException) t else MarmotQuicException(MarmotQuicException.Kind.PeerClosed, "${t.message}", t) + if (t is MarmotQuicException) throw t + // A connection that never reached CONNECTED did not fail as a + // peer closing on us mid-stream — it failed to be established at + // all, and that is a different decision for a caller walking its + // candidate list. Certificate rejection lands here: our own + // validator refuses, we send a TLS alert, and the connection + // closes before the handshake ever completes. + val kind = + if (connection.status == QuicConnection.Status.CONNECTED) { + MarmotQuicException.Kind.PeerClosed + } else { + MarmotQuicException.Kind.HandshakeFailed + } + throw MarmotQuicException(kind, "${t.message}", t) } } diff --git a/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicBrokerInteropTest.kt b/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicBrokerInteropTest.kt index 7178e50ca4..154a6593ec 100644 --- a/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicBrokerInteropTest.kt +++ b/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicBrokerInteropTest.kt @@ -28,6 +28,7 @@ import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextSt import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.InMemoryAgentTextStreamSequenceStore import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicException import com.vitorpamplona.quic.tls.PermissiveCertificateValidator +import com.vitorpamplona.quic.tls.PinnedCertificateValidator import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.SupervisorJob @@ -44,6 +45,7 @@ import kotlin.test.AfterTest import kotlin.test.Test import kotlin.test.assertContentEquals import kotlin.test.assertEquals +import kotlin.test.assertFailsWith import kotlin.test.assertTrue /** @@ -73,6 +75,13 @@ class MarmotQuicBrokerInteropTest { private val brokerAuthority: String? = System.getProperty("marmotQuicBroker") + /** + * The broker's leaf-certificate SHA-256, which it prints as + * `server_cert_sha256_fingerprint` in its startup JSON. Supplying it opts + * into the pinning cases. + */ + private val brokerPin: String? = System.getProperty("marmotQuicBrokerPin") + /** * Report "no broker configured" as a JUnit skip rather than a silent pass, * so a run that was meant to exercise the broker cannot look green because @@ -93,6 +102,57 @@ class MarmotQuicBrokerInteropTest { scope.cancel() } + /** + * The binding says a client MAY pin a self-signed endpoint by SHA-256 + * fingerprint. A unit test can only prove the comparison; whether pinning + * actually admits the right peer is a question about a real TLS 1.3 + * handshake, and only a real one answers it. + */ + @Test + fun aPinnedFingerprintCompletesTheHandshake() { + requireBroker() + val pin = requirePin() + runBlocking { + val transport = + QuicAgentTextStreamTransport( + parentScope = scope, + certificateValidator = PinnedCertificateValidator.ofSha256Hex(pin), + ) + val stream = transport.publish(candidate, Random.nextBytes(32), Random.nextBytes(32)) + stream.finish() + stream.close() + } + } + + @Test + fun aPinForAnotherCertificateIsRefused() { + requireBroker() + requirePin() + runBlocking { + // Same broker, wrong pin. If this connected, the pin would be + // decoration — which is exactly the failure mode that makes a + // misconfigured pin dangerous rather than merely broken. + val transport = + QuicAgentTextStreamTransport( + parentScope = scope, + certificateValidator = PinnedCertificateValidator.ofSha256Hex("00".repeat(32)), + ) + val failure = + assertFailsWith { + transport.publish(candidate, Random.nextBytes(32), Random.nextBytes(32)) + } + assertEquals(MarmotQuicException.Kind.HandshakeFailed, failure.kind, "${failure.message}") + } + } + + private fun requirePin(): String { + Assume.assumeTrue( + "set -DmarmotQuicBrokerPin=", + brokerPin != null, + ) + return brokerPin!! + } + private fun transport() = QuicAgentTextStreamTransport( parentScope = scope, diff --git a/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicDirectInteropTest.kt b/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicDirectInteropTest.kt new file mode 100644 index 0000000000..68e1b7ae74 --- /dev/null +++ b/marmotQuic/src/jvmTest/kotlin/com/vitorpamplona/marmotquic/MarmotQuicDirectInteropTest.kt @@ -0,0 +1,214 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.marmotquic + +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamCrypto +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamKeyContextV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamPublisher +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRecordV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.InMemoryAgentTextStreamSequenceStore +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.transport.MarmotQuicException +import com.vitorpamplona.quic.tls.PermissiveCertificateValidator +import com.vitorpamplona.quic.tls.PinnedCertificateValidator +import kotlinx.coroutines.CoroutineScope +import kotlinx.coroutines.Dispatchers +import kotlinx.coroutines.SupervisorJob +import kotlinx.coroutines.cancel +import kotlinx.coroutines.delay +import kotlinx.coroutines.runBlocking +import org.junit.Assume +import java.io.File +import java.net.DatagramSocket +import java.util.concurrent.TimeUnit +import kotlin.random.Random +import kotlin.test.AfterTest +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertTrue + +/** + * Drives our direct-path sender against MDK's own direct-path receiver + * (`wn stream receive`), the reference implementation of the listening half. + * + * The direct path inverts the broker path's connection direction — the + * RECEIVER listens and the SENDER dials — and drops the control envelope + * entirely, so the very first bytes on the stream are a record frame. Both of + * those are exactly the kind of thing an implementation happily agrees with + * itself about: a self-test would pass with an envelope still on the wire, or + * with the wrong ALPN, as long as both ends made the same mistake. Only the + * reference receiver can say otherwise. + * + * `:quic` is a client stack with no server role, so we can only drive the + * sender half here. That is also the half the spec makes usable in v1: there + * is no start-payload candidate by which a direct receiver advertises its own + * endpoint, so the sender always has the address from somewhere else. + * + * Opt in with `-DmarmotWn=/path/to/wn` (MDK's CLI, `cargo build --release + * --bin wn`). Without it the cases skip, so an ordinary `./gradlew test` + * never needs the reference implementation on the machine. + */ +class MarmotQuicDirectInteropTest { + private val scope = CoroutineScope(SupervisorJob() + Dispatchers.IO) + + private val wnPath: String? = System.getProperty("marmotWn") + + @AfterTest + fun tearDown() { + scope.cancel() + } + + private fun requireWn(): File { + val file = wnPath?.let { File(it) } + Assume.assumeTrue( + "set -DmarmotWn=/path/to/wn (MDK's CLI) to run the direct-path interop cases", + file != null && file.canExecute(), + ) + return file!! + } + + /** A UDP port nothing is listening on right now. */ + private fun freeUdpPort(): Int = DatagramSocket(0).use { it.localPort } + + /** + * One run of `wn stream receive`: it binds, waits for a single direct + * stream, and prints its JSON result when the stream finishes. + */ + private class ReferenceReceiver( + val process: Process, + val port: Int, + ) { + fun awaitResult(timeoutSeconds: Long): String { + val finished = process.waitFor(timeoutSeconds, TimeUnit.SECONDS) + val out = process.inputStream.readBytes().decodeToString() + val err = process.errorStream.readBytes().decodeToString() + if (!finished) { + process.destroyForcibly() + throw AssertionError("the reference receiver never finished. stdout=$out stderr=$err") + } + return out.ifBlank { throw AssertionError("the reference receiver printed nothing. stderr=$err") } + } + } + + private fun startReceiver( + wn: File, + startEventId: ByteArray, + ): ReferenceReceiver { + val port = freeUdpPort() + val process = + ProcessBuilder( + wn.absolutePath, + "--json", + "stream", + "receive", + "--bind", + "127.0.0.1:$port", + "--start-event-id", + startEventId.toHex(), + ).start() + return ReferenceReceiver(process, port) + } + + private fun crypto( + streamId: ByteArray, + startEventId: ByteArray, + ) = AgentTextStreamCrypto( + ByteArray(32) { 0x77 }, + AgentTextStreamKeyContextV1( + groupId = ByteArray(32) { 0x01 }, + streamId = streamId, + mlsEpoch = 3, + senderId = ByteArray(32) { 0x02 }, + startEventId = startEventId, + ), + ) + + @Test + fun ourDirectSenderReachesTheReferenceReceiver() { + val wn = requireWn() + runBlocking { + val streamId = Random.nextBytes(32) + val startEventId = Random.nextBytes(32) + val receiver = startReceiver(wn, startEventId) + // The receiver binds before it accepts; give it a moment so the + // dial does not race the bind and report the port as unreachable. + delay(1_000) + + val transport = + QuicAgentTextStreamTransport( + parentScope = scope, + // `wn stream receive` mints a throwaway self-signed + // certificate per run and only prints it in its final + // JSON, so there is nothing to pin ahead of the dial. The + // pin is enforced in its own case below. + certificateValidator = PermissiveCertificateValidator(), + ) + val stream = transport.sendDirect("quic://127.0.0.1:${receiver.port}", streamId, startEventId) + val sender = AgentTextStreamPublisher.open(crypto(streamId, startEventId), InMemoryAgentTextStreamSequenceStore()) + val chunks = listOf("direct ", "path ", "records") + for (text in chunks) { + stream.send(sender.publish(AgentTextStreamRecordV1.TYPE_TEXT_DELTA, text.encodeToByteArray())) + } + stream.finish() + stream.close() + + val json = receiver.awaitResult(30) + // The reference receiver read our frames, so the ALPN, the + // stream direction, the absence of a control envelope and the + // 4-byte frame prefix all matched. It was given no key, so the + // payloads stay ciphertext to it — what it can confirm is the + // routing identity and the sequence. + assertTrue(json.contains("\"stream_id\":\"${streamId.toHex()}\""), json) + assertTrue(json.contains("\"chunk_count\":${chunks.size}"), json) + assertTrue(json.contains("\"seq\":1"), json) + assertTrue(json.contains("\"seq\":${chunks.size}"), json) + } + } + + @Test + fun aWrongPinIsRefusedAgainstARealHandshake() { + val wn = requireWn() + runBlocking { + val streamId = Random.nextBytes(32) + val startEventId = Random.nextBytes(32) + val receiver = startReceiver(wn, startEventId) + delay(1_000) + + // A pin over a certificate the receiver is not holding. The + // handshake has to fail here rather than at the first record: + // once bytes are flowing, "pinned" would have meant nothing. + val transport = + QuicAgentTextStreamTransport( + parentScope = scope, + certificateValidator = PinnedCertificateValidator.ofSha256Hex("00".repeat(32)), + ) + val failure = + assertFailsWith { + transport.sendDirect("quic://127.0.0.1:${receiver.port}", streamId, startEventId) + } + assertEquals(MarmotQuicException.Kind.HandshakeFailed, failure.kind, "${failure.message}") + + receiver.process.destroyForcibly() + } + } + + private fun ByteArray.toHex(): String = joinToString("") { "%02x".format(it) } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/transport/MarmotQuicStreamTransport.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/transport/MarmotQuicStreamTransport.kt index 7a9d627eab..26957defc6 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/transport/MarmotQuicStreamTransport.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/transport/MarmotQuicStreamTransport.kt @@ -89,6 +89,35 @@ interface MarmotQuicTransport { streamId: ByteArray, startEventId: ByteArray, ): MarmotQuicStream + + /** + * Dial a receiver directly and stream records to it, point to point. + * + * The direct path is the binding's other delivery mode, and it is + * deliberately smaller than the broker one: the dialed endpoint already + * corresponds to one receiver, so there is no room to claim and NO control + * envelope — the very first bytes on the stream are a record frame. It + * negotiates its own ALPN (`marmot.quic_stream.v1`) so an incompatible + * change to either mode cannot reach the other. + * + * Note the connection direction: the RECEIVER listens and the SENDER + * dials. That is inverted from the broker path, where both ends dial the + * broker, and it is why v1 has no start-payload discovery for this mode — + * a start payload advertises broker candidates only, and there is no + * candidate shape by which a direct receiver publishes its own endpoint. + * So this is usable only when the sender already knows where to dial: + * out-of-band configuration, a dev/test peer, a preconfigured pair. + * + * [startEventId] never crosses the wire here. It stays in the signature + * because the caller still binds it into the record key and transcript + * hash, and because a direct endpoint that was told it out of band should + * be checking the same pair we are. + */ + suspend fun sendDirect( + candidate: String, + streamId: ByteArray, + startEventId: ByteArray, + ): MarmotQuicStream } /** Why a candidate turned out to be unusable. */ diff --git a/quic/src/jvmAndroid/kotlin/com/vitorpamplona/quic/tls/CertificateVerifySignature.kt b/quic/src/jvmAndroid/kotlin/com/vitorpamplona/quic/tls/CertificateVerifySignature.kt new file mode 100644 index 0000000000..8ffad1b041 --- /dev/null +++ b/quic/src/jvmAndroid/kotlin/com/vitorpamplona/quic/tls/CertificateVerifySignature.kt @@ -0,0 +1,119 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quic.tls + +import com.vitorpamplona.quic.QuicCodecException +import java.security.NoSuchAlgorithmException +import java.security.PublicKey +import java.security.Signature +import java.security.spec.MGF1ParameterSpec +import java.security.spec.PSSParameterSpec + +/** + * TLS 1.3 `CertificateVerify` verification, shared by every JDK/Android-backed + * [CertificateValidator]. + * + * Chain policy and CertificateVerify are separate questions, and the split + * matters: how a validator decides it likes a certificate (a trust store, a + * pinned fingerprint) is policy, but proving the peer holds the matching + * private key is not optional under any policy. A validator that pinned a + * fingerprint and skipped this would accept anyone who could copy a public + * certificate off the wire. + */ +internal object CertificateVerifySignature { + fun verify( + publicKey: PublicKey, + signatureAlgorithm: Int, + signature: ByteArray, + transcriptHash: ByteArray, + ) { + // RFC 8446 §4.4.3 — the signed content is: + // 64 spaces || "TLS 1.3, server CertificateVerify" || 0x00 || transcript_hash + val context = "TLS 1.3, server CertificateVerify".encodeToByteArray() + val signedData = ByteArray(64 + context.size + 1 + transcriptHash.size) + for (i in 0 until 64) signedData[i] = 0x20 + context.copyInto(signedData, 64) + signedData[64 + context.size] = 0x00 + transcriptHash.copyInto(signedData, 64 + context.size + 1) + + val sig = jcaSignatureFor(signatureAlgorithm) + sig.initVerify(publicKey) + sig.update(signedData) + if (!sig.verify(signature)) { + throw QuicCodecException("CertificateVerify signature did not verify") + } + } + + private fun jcaSignatureFor(algorithm: Int): Signature = + when (algorithm) { + TlsConstants.SIG_ECDSA_SECP256R1_SHA256 -> { + Signature.getInstance("SHA256withECDSA") + } + + TlsConstants.SIG_ECDSA_SECP384R1_SHA384 -> { + Signature.getInstance("SHA384withECDSA") + } + + TlsConstants.SIG_RSA_PSS_RSAE_SHA256 -> { + rsaPss("SHA-256", 32) + } + + TlsConstants.SIG_RSA_PSS_RSAE_SHA384 -> { + rsaPss("SHA-384", 48) + } + + TlsConstants.SIG_RSA_PSS_RSAE_SHA512 -> { + rsaPss("SHA-512", 64) + } + + TlsConstants.SIG_ED25519 -> { + try { + // JCA "Ed25519" was added to Android Conscrypt in API 33. + // On API 26–32 (our minSdk floor) this throws — surface + // it as a clean QuicCodecException so the read loop maps + // to CONNECTION_CLOSE rather than crashing the parser. + Signature.getInstance("Ed25519") + } catch (_: NoSuchAlgorithmException) { + throw QuicCodecException( + "Ed25519 not supported on this platform " + + "(requires Android API 33+ or a JDK with the EdDSA provider)", + ) + } + } + + // Audit-4 #2: rsa_pkcs1_* schemes are forbidden in CertificateVerify + // by RFC 8446 §4.2.3 (only allowed in CertificateRequest for + // legacy compat). Accepting them allowed a server to sign with + // weaker PKCS#1 v1.5 instead of RSA-PSS. + else -> { + throw QuicCodecException("unsupported signature algorithm 0x${algorithm.toString(16)}") + } + } + + private fun rsaPss( + digest: String, + saltLen: Int, + ): Signature { + val sig = Signature.getInstance("RSASSA-PSS") + sig.setParameter(PSSParameterSpec(digest, "MGF1", MGF1ParameterSpec(digest), saltLen, 1)) + return sig + } +} diff --git a/quic/src/jvmAndroid/kotlin/com/vitorpamplona/quic/tls/JdkCertificateValidator.kt b/quic/src/jvmAndroid/kotlin/com/vitorpamplona/quic/tls/JdkCertificateValidator.kt index 332d65d5c1..b83129ccf9 100644 --- a/quic/src/jvmAndroid/kotlin/com/vitorpamplona/quic/tls/JdkCertificateValidator.kt +++ b/quic/src/jvmAndroid/kotlin/com/vitorpamplona/quic/tls/JdkCertificateValidator.kt @@ -26,12 +26,8 @@ import java.lang.reflect.InvocationTargetException import java.net.IDN import java.net.InetAddress import java.security.KeyStore -import java.security.NoSuchAlgorithmException -import java.security.Signature import java.security.cert.CertificateFactory import java.security.cert.X509Certificate -import java.security.spec.MGF1ParameterSpec -import java.security.spec.PSSParameterSpec import javax.net.ssl.TrustManagerFactory import javax.net.ssl.X509TrustManager @@ -117,77 +113,7 @@ class JdkCertificateValidator( transcriptHash: ByteArray, ) { val cert = leafCert ?: throw QuicCodecException("CertificateVerify before Certificate") - - // RFC 8446 §4.4.3 — the signed content is: - // 64 spaces || "TLS 1.3, server CertificateVerify" || 0x00 || transcript_hash - val context = "TLS 1.3, server CertificateVerify".encodeToByteArray() - val signedData = ByteArray(64 + context.size + 1 + transcriptHash.size) - for (i in 0 until 64) signedData[i] = 0x20 - context.copyInto(signedData, 64) - signedData[64 + context.size] = 0x00 - transcriptHash.copyInto(signedData, 64 + context.size + 1) - - val sig = jcaSignatureFor(signatureAlgorithm) - sig.initVerify(cert.publicKey) - sig.update(signedData) - if (!sig.verify(signature)) { - throw QuicCodecException("CertificateVerify signature did not verify") - } - } - - private fun jcaSignatureFor(algorithm: Int): Signature = - when (algorithm) { - TlsConstants.SIG_ECDSA_SECP256R1_SHA256 -> { - Signature.getInstance("SHA256withECDSA") - } - - TlsConstants.SIG_ECDSA_SECP384R1_SHA384 -> { - Signature.getInstance("SHA384withECDSA") - } - - TlsConstants.SIG_RSA_PSS_RSAE_SHA256 -> { - rsaPss("SHA-256", 32) - } - - TlsConstants.SIG_RSA_PSS_RSAE_SHA384 -> { - rsaPss("SHA-384", 48) - } - - TlsConstants.SIG_RSA_PSS_RSAE_SHA512 -> { - rsaPss("SHA-512", 64) - } - - TlsConstants.SIG_ED25519 -> { - try { - // JCA "Ed25519" was added to Android Conscrypt in API 33. - // On API 26–32 (our minSdk floor) this throws — surface - // it as a clean QuicCodecException so the read loop maps - // to CONNECTION_CLOSE rather than crashing the parser. - Signature.getInstance("Ed25519") - } catch (_: NoSuchAlgorithmException) { - throw QuicCodecException( - "Ed25519 not supported on this platform " + - "(requires Android API 33+ or a JDK with the EdDSA provider)", - ) - } - } - - // Audit-4 #2: rsa_pkcs1_* schemes are forbidden in CertificateVerify - // by RFC 8446 §4.2.3 (only allowed in CertificateRequest for - // legacy compat). Accepting them allowed a server to sign with - // weaker PKCS#1 v1.5 instead of RSA-PSS. - else -> { - throw QuicCodecException("unsupported signature algorithm 0x${algorithm.toString(16)}") - } - } - - private fun rsaPss( - digest: String, - saltLen: Int, - ): Signature { - val sig = Signature.getInstance("RSASSA-PSS") - sig.setParameter(PSSParameterSpec(digest, "MGF1", MGF1ParameterSpec(digest), saltLen, 1)) - return sig + CertificateVerifySignature.verify(cert.publicKey, signatureAlgorithm, signature, transcriptHash) } private fun hostnameMatches( diff --git a/quic/src/jvmAndroid/kotlin/com/vitorpamplona/quic/tls/PinnedCertificateValidator.kt b/quic/src/jvmAndroid/kotlin/com/vitorpamplona/quic/tls/PinnedCertificateValidator.kt new file mode 100644 index 0000000000..e94015db6b --- /dev/null +++ b/quic/src/jvmAndroid/kotlin/com/vitorpamplona/quic/tls/PinnedCertificateValidator.kt @@ -0,0 +1,147 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quic.tls + +import com.vitorpamplona.quic.QuicCodecException +import java.io.ByteArrayInputStream +import java.security.MessageDigest +import java.security.cert.CertificateFactory +import java.security.cert.X509Certificate + +/** + * A certificate validator that trusts exactly the endpoints whose leaf + * certificate matches a configured SHA-256 fingerprint. + * + * This is the "self-signed endpoint" case, and it is a real one: Marmot's raw + * QUIC binding says a preview endpoint or broker may be self-signed and that a + * client MAY pin it by exact DER or by SHA-256 fingerprint through local + * configuration. The alternative in use until now was accepting every + * certificate, which is not a weaker trust model — it is no trust model, and + * anyone on the path can be the broker. + * + * Pinning replaces the chain and the hostname check, and only those. It does + * NOT replace proof of possession: the peer still has to sign the TLS + * transcript with the pinned certificate's private key ([verifySignature]), + * so copying a public certificate off the wire buys an attacker nothing. + * + * The pin is over the leaf's DER bytes exactly as the peer sent them, which is + * what `openssl x509 -outform der | sha256sum` prints and what a broker + * operator can therefore publish alongside its address. An expired or + * not-yet-valid pinned certificate is still refused: pinning says WHICH + * certificate, not that any certificate will do forever. + */ +class PinnedCertificateValidator( + pins: Collection, +) : CertificateValidator { + private val pins: List = + pins.map { + require(it.size == SHA256_LEN) { "a certificate pin is a $SHA256_LEN-byte SHA-256 digest, got ${it.size}" } + it.copyOf() + } + + private var leafCert: X509Certificate? = null + + init { + require(this.pins.isNotEmpty()) { "a pinned validator needs at least one pin" } + } + + override fun validateChain( + chain: List, + expectedHost: String, + ) { + if (chain.isEmpty()) throw QuicCodecException("server sent empty certificate chain") + + // Only the leaf is pinned. The rest of the chain is not consulted at + // all — with a pin there is no path to build and no issuer to trust, + // and a self-signed endpoint has no chain to speak of. + val leafDer = chain[0] + val fingerprint = MessageDigest.getInstance("SHA-256").digest(leafDer) + if (pins.none { it.contentEqualsConstantTime(fingerprint) }) { + throw QuicCodecException("certificate does not match any pinned SHA-256 fingerprint") + } + + val parsed = + try { + CertificateFactory + .getInstance("X.509") + .generateCertificate(ByteArrayInputStream(leafDer)) as X509Certificate + } catch (t: Throwable) { + throw QuicCodecException("pinned certificate parse failed: ${t.message}", t) + } + try { + parsed.checkValidity() + } catch (t: Throwable) { + throw QuicCodecException("pinned certificate is not currently valid: ${t.message}", t) + } + + // No hostname verification: the pin already names one certificate, and + // a self-signed preview endpoint reached by IP literal typically has no + // name to check against. `expectedHost` stays in the signature because + // the interface is shared with trust-store validation. + leafCert = parsed + } + + override fun verifySignature( + signatureAlgorithm: Int, + signature: ByteArray, + transcriptHash: ByteArray, + ) { + val cert = leafCert ?: throw QuicCodecException("CertificateVerify before Certificate") + CertificateVerifySignature.verify(cert.publicKey, signatureAlgorithm, signature, transcriptHash) + } + + companion object { + const val SHA256_LEN = 32 + + /** + * Pin by SHA-256 fingerprint, written as hex. + * + * Colons and whitespace are accepted and ignored so the output of + * `openssl x509 -fingerprint -sha256` can be pasted in as-is. + */ + fun ofSha256Hex(vararg fingerprints: String): PinnedCertificateValidator = PinnedCertificateValidator(fingerprints.map { parseHexDigest(it) }) + + /** + * Pin by the certificate's exact DER bytes. + * + * The DER is reduced to its own SHA-256 immediately: "exact DER" and + * "its fingerprint" are the same pin, and keeping one representation + * means one comparison path to get right. + */ + fun ofDer(vararg certificates: ByteArray): PinnedCertificateValidator = + PinnedCertificateValidator( + certificates.map { MessageDigest.getInstance("SHA-256").digest(it) }, + ) + + private fun parseHexDigest(raw: String): ByteArray { + val cleaned = raw.filterNot { it == ':' || it.isWhitespace() } + require(cleaned.length == SHA256_LEN * 2) { + "a SHA-256 fingerprint is ${SHA256_LEN * 2} hex characters, got ${cleaned.length}" + } + return ByteArray(SHA256_LEN) { i -> + val hi = Character.digit(cleaned[i * 2], 16) + val lo = Character.digit(cleaned[i * 2 + 1], 16) + require(hi >= 0 && lo >= 0) { "a SHA-256 fingerprint must be hex" } + ((hi shl 4) or lo).toByte() + } + } + } +} diff --git a/quic/src/jvmTest/kotlin/com/vitorpamplona/quic/tls/PinnedCertificateValidatorTest.kt b/quic/src/jvmTest/kotlin/com/vitorpamplona/quic/tls/PinnedCertificateValidatorTest.kt new file mode 100644 index 0000000000..fe195fc37c --- /dev/null +++ b/quic/src/jvmTest/kotlin/com/vitorpamplona/quic/tls/PinnedCertificateValidatorTest.kt @@ -0,0 +1,163 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quic.tls + +import com.vitorpamplona.quic.QuicCodecException +import org.junit.Test +import java.security.MessageDigest +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertTrue + +/** + * Pinning is the trust model for a self-signed Marmot preview endpoint, so the + * interesting cases are all the ways it must REFUSE. A pin that quietly + * accepts the wrong certificate is worse than no pin: the operator believes + * they configured something. + */ +class PinnedCertificateValidatorTest { + /** + * A self-signed P-256 certificate for `marmot-preview.test` with an + * `IP:127.0.0.1` SAN, valid for a century so this test does not become a + * time bomb. Nothing signs with it — only its DER bytes matter here. + */ + private val leafDer = + ( + "308201a43082014aa00302010202146633303a60bb8854f6c7128247d681e5e72afff2300a06082a8648ce3d040302301e31" + + "1c301a06035504030c136d61726d6f742d707265766965772e746573743020170d3236303930393135323432325a180f3231" + + "3236303831363135323432325a301e311c301a06035504030c136d61726d6f742d707265766965772e746573743059301306" + + "072a8648ce3d020106082a8648ce3d030107034200042498e9233c2eb1e6302fb98d0761205c0cd38e9eb72ea89651acb8f1" + + "a97c32f2f658dfef6a2c1e118f2874f2ae6607c3499814c00d58cf6ebd894b2445742d40a3643062301d0603551d0e041604" + + "14b9b33ffe3a961e40004413767b7d84acc1069cc5301f0603551d23041830168014b9b33ffe3a961e40004413767b7d84ac" + + "c1069cc5300f0603551d130101ff040530030101ff300f0603551d110408300687047f000001300a06082a8648ce3d040302" + + "0348003045022100fea992edecb7f0b3e92d798fac6eca4f728784d879a2d96999e6ec458fa7813002207b921e876f9f38f2" + + "ede262f55fa8b8968a4373c5bc0ec8326cdd1f8c8c759743" + ).hexToBytes() + + private val fingerprintHex = "c0f7a502abf9b8f0657ec5c39eaaf4bcff21bb530c8afb81ecbf0b38b76f676c" + + @Test + fun `the pin is the SHA-256 of the leaf DER exactly as sent`() { + // The digest a broker operator publishes comes from + // `openssl x509 -outform der | sha256sum`, so this is the value the + // whole design hangs on. If it were over anything else — the PEM, the + // public key, a re-encoded cert — a correctly configured pin would + // reject a correct endpoint. + val digest = MessageDigest.getInstance("SHA-256").digest(leafDer) + assertEquals(fingerprintHex, digest.joinToString("") { "%02x".format(it) }) + } + + @Test + fun `a matching fingerprint validates`() { + PinnedCertificateValidator.ofSha256Hex(fingerprintHex).validateChain(listOf(leafDer), "marmot-preview.test") + } + + @Test + fun `the host is not checked because the pin already named the certificate`() { + // A self-signed preview endpoint reached by IP literal usually has no + // name worth checking, and the pin is a stronger statement than any + // name would be. This asserts the deliberate difference from + // JdkCertificateValidator rather than an accident. + PinnedCertificateValidator.ofSha256Hex(fingerprintHex).validateChain(listOf(leafDer), "not-the-cert-name.example") + } + + @Test + fun `a different fingerprint is refused`() { + val other = "00".repeat(32) + val e = + assertFailsWith { + PinnedCertificateValidator.ofSha256Hex(other).validateChain(listOf(leafDer), "marmot-preview.test") + } + assertTrue(e.message!!.contains("pinned SHA-256"), e.message) + } + + @Test + fun `one matching pin among several is enough`() { + PinnedCertificateValidator + .ofSha256Hex("11".repeat(32), fingerprintHex, "22".repeat(32)) + .validateChain(listOf(leafDer), "marmot-preview.test") + } + + @Test + fun `pinning by DER is the same pin as pinning by its fingerprint`() { + PinnedCertificateValidator.ofDer(leafDer).validateChain(listOf(leafDer), "marmot-preview.test") + } + + @Test + fun `an openssl-formatted fingerprint is accepted verbatim`() { + // `openssl x509 -fingerprint -sha256` prints colon-separated upper + // case. Making the operator strip that by hand is how a pin ends up + // mistyped. + val colonised = fingerprintHex.chunked(2).joinToString(":").uppercase() + PinnedCertificateValidator.ofSha256Hex(colonised).validateChain(listOf(leafDer), "marmot-preview.test") + } + + @Test + fun `an empty chain is refused`() { + assertFailsWith { + PinnedCertificateValidator.ofSha256Hex(fingerprintHex).validateChain(emptyList(), "marmot-preview.test") + } + } + + @Test + fun `only the leaf is pinned, so a matching cert deeper in the chain does not count`() { + // Pinning the leaf and then honouring a match anywhere in the chain + // would let a peer present any certificate it likes and append the + // pinned one behind it. + assertFailsWith { + PinnedCertificateValidator + .ofSha256Hex(fingerprintHex) + .validateChain(listOf(byteArrayOf(1, 2, 3), leafDer), "marmot-preview.test") + } + } + + @Test + fun `a pin that is not a SHA-256 digest is rejected at construction`() { + assertFailsWith { PinnedCertificateValidator.ofSha256Hex("abcd") } + assertFailsWith { PinnedCertificateValidator.ofSha256Hex("zz".repeat(32)) } + assertFailsWith { PinnedCertificateValidator(emptyList()) } + } + + @Test + fun `CertificateVerify before Certificate is refused`() { + // Order matters: without a leaf there is no key to check the signature + // against, and silently passing would make the pin decorative. + assertFailsWith { + PinnedCertificateValidator + .ofSha256Hex(fingerprintHex) + .verifySignature(TlsConstants.SIG_ECDSA_SECP256R1_SHA256, ByteArray(64), ByteArray(32)) + } + } + + @Test + fun `a garbage signature does not verify against the pinned key`() { + val validator = PinnedCertificateValidator.ofSha256Hex(fingerprintHex) + validator.validateChain(listOf(leafDer), "marmot-preview.test") + assertFailsWith { + validator.verifySignature(TlsConstants.SIG_ECDSA_SECP256R1_SHA256, ByteArray(70), ByteArray(32)) + } + } + + private fun String.hexToBytes(): ByteArray = + ByteArray(length / 2) { i -> + ((Character.digit(this[i * 2], 16) shl 4) or Character.digit(this[i * 2 + 1], 16)).toByte() + } +} From 7e98978d217f24771f87ba066b021debb2a9cd7d Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 16:13:13 +0000 Subject: [PATCH 35/79] feat(marmot): message edits and derived group system rows MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Kinds 1009 and 1210 had codecs in quartz and not one reference anywhere above them. So an edit from a peer landed in the log and changed nothing, and a group state change produced no row at all. **Edits (1009).** An edit is not chat: it replaces the target's text in place, must never render as its own row, and must not advance an unread count — a reader caught up with the original is caught up with the edit. Two rules decide which text a reader sees, and both are enforced at READ time because a sender cannot be trusted to have applied them: only the account that wrote a message may replace it (by account, not by leaf, so a second device of the same account still qualifies), and the latest edit wins with the event id breaking a tie. The tie-break is not decoration — two devices of one account can stamp the same second, and without it two readers would render different text for the same message forever. **System rows (1210).** These are synthesized locally from canonical group state, never received: a row derived from an MLS-authenticated commit cannot be forged by one member, and every client that applied the same commits derives the same rows. The derivation is a pure diff of two snapshots with a fixed output order, because two clients ordering rows by hash iteration would show the same history differently. Diffing against a PERSISTED baseline rather than against the pre-commit state in hand is what makes it safe: it is idempotent, it survives a restart mid-transition, and it cannot write a second caption for a change it already described. The first look at a group establishes the baseline and writes nothing — a joiner announcing every existing member as newly added would be a timeline full of events that did not happen. Two bugs the tests found rather than the reading did. The row content's quote escape was written as the literal text `ESC"`, which produced a content string no decoder could read back — and since a 1210's content is inside the app event's id preimage, a peer would have rejected the row outright rather than merely mis-rendering it. And the snapshot read the group name off the current profile's components alone, so every legacy MIP-01 group — which keeps its name inside `0xF2EE` — looked permanently nameless and no rename ever derived a row. Android now also keeps 1009, 1200 and 1210 out of the chat feed. None of them is a chat bubble: an edit would show the same sentence twice, a stream anchor has an empty body and would render blank, and a system row would render as a bubble of JSON. Rendering 1210 in its own style, and applying the edit overlay in the bubble, still needs a renderer that knows about them. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../model/marmot/AndroidMarmotMessageStore.kt | 37 ++- .../amethyst/cli/commands/MessageCommands.kt | 60 +++- .../amethyst/cli/stores/FileStores.kt | 13 + .../amethyst/commons/marmot/MarmotIngest.kt | 11 + .../amethyst/commons/marmot/MarmotManager.kt | 158 +++++++++++ .../model/marmotGroups/MarmotGroupList.kt | 35 ++- .../marmot/MarmotEditsAndSystemRowsTest.kt | 265 ++++++++++++++++++ .../appEvents/MarmotGroupSnapshot.kt | 235 ++++++++++++++++ .../foundation/appEvents/MarmotSystemEvent.kt | 2 +- .../marmot/mls/group/MarmotMessageStore.kt | 20 ++ .../appEvents/MarmotSystemRowDiffTest.kt | 170 +++++++++++ 11 files changed, 997 insertions(+), 9 deletions(-) create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotGroupSnapshot.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemRowDiffTest.kt diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt index d313488a3e..437fc0cbc6 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt @@ -111,7 +111,7 @@ class AndroidMarmotMessageStore( override suspend fun delete(nostrGroupId: String) { withContext(Dispatchers.IO) { writeMutex.withLock { - for (file in listOf(messagesFile(nostrGroupId), epochsFile(nostrGroupId))) { + for (file in listOf(messagesFile(nostrGroupId), epochsFile(nostrGroupId), snapshotFile(nostrGroupId))) { if (file.exists() && !file.delete()) { Log.w(TAG) { "delete($nostrGroupId): failed to remove ${file.absolutePath}" } } @@ -166,6 +166,41 @@ class AndroidMarmotMessageStore( } } + private fun snapshotFile(nostrGroupId: String): File = File(groupDir(nostrGroupId), "snapshot") + + /** + * The group state the last kind:1210 rows were derived from. + * + * Encrypted like everything else here: it names members and admins, which + * is the group's membership written down. + * + * A single entry rather than an append log — this is one baseline, not a + * history, and the previous one is worthless the moment rows are derived + * against it. + */ + override suspend fun recordGroupSnapshot( + nostrGroupId: String, + snapshotJson: String, + ) = withContext(Dispatchers.IO) { + writeMutex.withLock { + try { + writeAllTo(snapshotFile(nostrGroupId), listOf(snapshotJson)) + } catch (e: Exception) { + Log.e(TAG, "recordGroupSnapshot($nostrGroupId) FAILED: ${e.message}", e) + } + } + } + + override suspend fun loadGroupSnapshot(nostrGroupId: String): String? = + withContext(Dispatchers.IO) { + try { + readAllFrom(snapshotFile(nostrGroupId)).firstOrNull() + } catch (e: Exception) { + Log.e(TAG, "loadGroupSnapshot($nostrGroupId) FAILED: ${e.message}", e) + null + } + } + private fun readAll(nostrGroupId: String): List = readAllFrom(messagesFile(nostrGroupId)) private fun readAllFrom(file: File): List { diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/MessageCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/MessageCommands.kt index 87fe4de525..e3338aa0c9 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/MessageCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/MessageCommands.kt @@ -35,6 +35,7 @@ object MessageCommands { | marmot message send GID TEXT publish kind:9 inner event into the group | marmot message list GID [--limit N] dump decrypted inner events (default --limit 50; | --limit 0 = unlimited) + | marmot message edit GID EVENT_ID TEXT publish kind:1009 replacing a message's text | marmot message react GID EVENT_ID EMOJI publish kind:7 reaction targeting an inner event | marmot message delete GID EVENT_ID… publish kind:5 deletion targeting inner events """.trimMargin() @@ -46,10 +47,11 @@ object MessageCommands { route( "message", tail, - "message …", + "message …", mapOf( "send" to { rest -> send(dataDir, rest) }, "list" to { rest -> list(dataDir, rest) }, + "edit" to { rest -> edit(dataDir, rest) }, "react" to { rest -> react(dataDir, rest) }, "delete" to { rest -> delete(dataDir, rest) }, ), @@ -102,17 +104,25 @@ object MessageCommands { if (!ctx.marmot.isMember(gid)) return Output.error("not_member", "not a member of group $gid") val raw = ctx.marmot.loadStoredMessages(gid) + // An edit is not its own row: it replaces the target's text in + // place. Resolving the overlay here rather than in the renderer is + // what keeps every front end from re-deriving the authorship and + // tie-break rules, and getting one of them subtly different. + val overlays = ctx.marmot.editOverlays(raw.mapNotNull { Event.fromJsonOrNull(it) }) val items = raw .map { line -> try { @Suppress("UNCHECKED_CAST") val obj = Output.mapper.readValue>(line) + val id = obj["id"] as? String + val edited = overlays[id] mapOf( "event_id" to obj["id"], "author" to obj["pubkey"], "kind" to obj["kind"], - "content" to obj["content"], + "content" to (edited ?: obj["content"]), + "edited" to (edited != null), "created_at" to obj["created_at"], ) } catch (_: Exception) { @@ -125,6 +135,52 @@ object MessageCommands { } } + /** + * Replace a prior message's text. `message edit ` + * + * The edit only lands for readers if this account wrote the target — every + * receiver re-checks that against the message it holds — so the same check + * runs here rather than publishing something that will be ignored. + */ + private suspend fun edit( + dataDir: DataDir, + rest: Array, + ): Int { + if (rest.size < 3) return Output.error("bad_args", "message edit ") + val targetId = rest[1] + val replacement = rest[2] + Context.open(dataDir).use { ctx -> + ctx.prepare() + val gid = ctx.resolveGroupId(rest[0]) + ctx.syncIncoming() + if (!ctx.marmot.isMember(gid)) return Output.error("not_member", "not a member of group $gid") + + val target = + findStoredInnerEvent(ctx, gid, targetId) + ?: return Output.error("not_found", "no stored message $targetId in group $gid") + if (target.pubKey != ctx.identity.pubKeyHex) { + return Output.error("not_author", "only the author of $targetId may replace its text") + } + + val bundle = ctx.marmot.buildMessageEdit(gid, target.id, replacement) + val targets = ctx.marmotGroupRelays(gid).ifEmpty { ctx.outboxRelays() } + val ack = ctx.publish(bundle.outbound.signedEvent, targets) + RawEventSupport.publishGuard(ack, bundle.outbound.signedEvent.id)?.let { return it } + + Output.emit( + mapOf( + "group_id" to gid, + "inner_event_id" to bundle.innerEvent.id, + "outer_event_id" to bundle.outbound.signedEvent.id, + "kind" to bundle.innerEvent.kind, + "target_event_id" to target.id, + "content" to replacement, + ) + RawEventSupport.ackFields(ack), + ) + return 0 + } + } + private suspend fun react( dataDir: DataDir, rest: Array, diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt index 9b6d367c41..f76eb16ad9 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt @@ -152,8 +152,21 @@ class FileMarmotMessageStore( override suspend fun delete(nostrGroupId: String) { file(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group messages") epochFile(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group message epochs") + snapshotFile(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group system-row baseline") } + private fun snapshotFile(id: String) = File(dir, "$id.snapshot") + + override suspend fun recordGroupSnapshot( + nostrGroupId: String, + snapshotJson: String, + ) { + // Overwritten, not appended: this is one baseline, not a history. + SecureFileIO.writeBytesAtomic(snapshotFile(nostrGroupId), snapshotJson.encodeToByteArray()) + } + + override suspend fun loadGroupSnapshot(nostrGroupId: String): String? = snapshotFile(nostrGroupId).takeIf { it.exists() }?.readText() + private fun epochFile(id: String) = File(dir, "$id.epochs") override suspend fun recordEpoch( diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt index 217df5d7c2..e875e4aea0 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt @@ -139,6 +139,11 @@ private suspend fun MarmotManager.ingestGiftWrapUncached(wrap: GiftWrapEvent): M } when (val result = processWelcome(rumor, rumor.nostrGroupId())) { is WelcomeResult.Joined -> { + // Establish the baseline for this group's system rows without + // writing any: a joiner announcing every existing member as + // newly added would be a timeline full of events that never + // happened. + syncGroupSystemRows(result.nostrGroupId) MarmotIngestResult.JoinedGroup( nostrGroupId = result.nostrGroupId, needsKeyPackageRotation = result.needsKeyPackageRotation, @@ -167,6 +172,12 @@ private suspend fun MarmotManager.ingestGroupEvent(ge: GroupEvent): MarmotIngest } is GroupEventResult.CommitProcessed -> { + // The epoch just advanced, so whatever this commit changed about + // the group is now canonical state — which is exactly what a + // kind:1210 row is derived from. Deriving here rather than at + // render time means the rows land in the same log as the messages + // they sit between, in the order they happened. + syncGroupSystemRows(result.groupId) MarmotIngestResult.Commit(result) } diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 727c0e00db..48bb22589c 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -42,6 +42,11 @@ import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextSt import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamFinal import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamKeyContextV1 import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamStart +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotAppEvent +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotGroupSnapshot +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotMessageEdit +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotSystemEvent +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotSystemRowDiff import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageEvent import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageRotationManager @@ -576,6 +581,38 @@ class MarmotManager( /** The group's current MLS epoch, which the stream key context binds. */ fun currentEpoch(nostrGroupId: HexKey): Long? = groupManager.getGroup(nostrGroupId)?.epoch + /** + * Build a kind:1009 edit that replaces the text of a prior message. + * + * An edit is not chat and must never render as its own row: the + * replacement is overlaid on the original body, and a reader who was + * caught up with the original is caught up with the edit. It carries + * exactly one `e` tag naming its target — an edit that named several would + * leave every client to pick one, and they would not all pick the same. + * + * Authorship is checked at READ time, not here: only the original author + * may replace their own words, and a receiver enforces that against the + * message it actually holds rather than trusting the sender to have. + */ + suspend fun buildMessageEdit( + nostrGroupId: HexKey, + targetEventId: HexKey, + replacement: String, + persistOwn: Boolean = true, + ): TextMessageBundle { + val template = + com.vitorpamplona.quartz.nip01Core.signers + .eventTemplate(kind = MarmotAppEvent.KIND_EDIT, description = replacement) { + addUnique(arrayOf("e", targetEventId)) + } + val innerEvent = + com.vitorpamplona.quartz.nip59Giftwrap.rumors.RumorAssembler + .assembleRumor(signer.pubKey, template) + val outbound = buildGroupMessage(nostrGroupId, innerEvent) + if (persistOwn) persistDecryptedMessage(nostrGroupId, innerEvent.toJson()) + return TextMessageBundle(outbound = outbound, innerEvent = innerEvent) + } + /** * Build a kind:5 deletion inner event targeting one or more prior inner * events in the same group. Unsigned rumor (MIP-03); e-tag + k-tag for @@ -833,6 +870,11 @@ class MarmotManager( sourceEpoch = staged.priorState.groupContext.epoch, preState = staged.priorState, ) + // Our own change is canonical state now, so it gets the same + // derived rows a peer's commit would. The actor is known here in a + // way it is not for an inbound commit, which is what lets a + // self-removal read as "left" rather than "removed". + syncGroupSystemRows(nostrGroupId, actor = signer.pubKey) } else { Log.w("MarmotManager") { "commitAndPublish($nostrGroupId): no relay acknowledged the commit — pending state " + @@ -1043,6 +1085,122 @@ class MarmotManager( } } + /** + * The winning edit for every message a set of app events edits. + * + * Returns `target event id → replacement text`. Two rules do the work, and + * both are read-side because a sender cannot be trusted to have applied + * them: + * + * - **Authorship is by ACCOUNT.** Only the account that wrote a message may + * replace it. A second device of the same account holds a different leaf + * and may still edit its own account's words; any other account's edit is + * ignored outright, or every member could rewrite anyone. + * - **The latest edit wins, with the event id breaking a tie.** Two devices + * of one account can stamp the same second, and without a deterministic + * rule two readers would render different text for the same message + * forever. + * + * [messages] is the group's decrypted app events — the originals and the + * edits together, since an edit is only authorized against the message it + * targets. + */ + fun editOverlays(messages: List): Map { + val authorOf = HashMap(messages.size) + val edits = HashMap>() + for (event in messages) { + if (event.kind == MarmotAppEvent.KIND_EDIT) { + val edit = + MarmotMessageEdit.fromAppEvent(MarmotAppEvent.fromEvent(event)) + ?: continue + edits.getOrPut(edit.targetId) { mutableListOf() }.add(edit) + } else { + authorOf[event.id] = event.pubKey + } + } + val overlays = HashMap(edits.size) + for ((targetId, candidates) in edits) { + // An edit for a message this client does not hold is not applied. + // It is not dropped as invalid either — the target may simply not + // have arrived yet — it just has nothing to overlay. + val originalAuthor = authorOf[targetId] ?: continue + val authorized = candidates.filter { MarmotMessageEdit.isAuthorized(it, originalAuthor) } + MarmotMessageEdit.selectOverlay(authorized)?.let { overlays[targetId] = it.replacement } + } + return overlays + } + + /** + * The slice of canonical group state that kind:1210 rows are derived from, + * or null when this client is not in the group. + */ + fun groupSnapshot(nostrGroupId: HexKey): MarmotGroupSnapshot? { + val group = groupManager.getGroup(nostrGroupId) ?: return null + // Name and admins come from [groupView], not from the components + // alone: a legacy group keeps both inside `0xF2EE`, and reading the + // current profile's components there would report a nameless group + // that never changes — so a rename would derive no row at all. + val view = groupView(nostrGroupId) + return MarmotGroupSnapshot.of( + state = group.currentGroupState(), + memberAccounts = memberPubkeys(nostrGroupId).map { it.pubkey }, + name = view?.name.orEmpty(), + admins = view?.adminPubkeys.orEmpty(), + ) + } + + /** + * Derive the kind:1210 rows for whatever changed since this client last + * looked, append them to the local log, and record the new baseline. + * + * System rows are synthesized from canonical group state, never received: + * a row derived from an MLS-authenticated commit cannot be forged by one + * member, and every client that applied the same commits derives the same + * rows. A client MUST NOT wait for a 1210 *message* to learn that state + * changed — one that arrives over the wire is an assertion by its sender, + * not a derived fact. + * + * Diffing against a stored baseline rather than against the pre-commit + * state in hand is what makes this safe to call at any time: it is + * idempotent, it survives a restart mid-transition, and it cannot + * double-write a row for a change it already described. + * + * The very first call on a group establishes the baseline and writes + * nothing. Announcing every existing member as newly added would be a + * timeline full of events that did not happen. + */ + suspend fun syncGroupSystemRows( + nostrGroupId: HexKey, + /** The committer, when the caller knows it. An unattributed row is still true. */ + actor: HexKey? = null, + ): List { + val store = messageStore ?: return emptyList() + val current = groupSnapshot(nostrGroupId) ?: return emptyList() + return try { + val stored = store.loadGroupSnapshot(nostrGroupId) + val baseline = stored?.let { MarmotGroupSnapshot.decode(it) } + if (baseline == null) { + store.recordGroupSnapshot(nostrGroupId, current.encode()) + return emptyList() + } + val rows = MarmotSystemRowDiff.diff(baseline, current, actor) + val now = TimeUtils.now() + for (row in rows) { + // The row is attributed to the committer when there is one. + // With no actor it is still attributed to somebody, because an + // app event has a pubkey — this client, whose local derivation + // it is. + val appEvent = row.toAppEvent(actor ?: signer.pubKey, now) + persistDecryptedMessage(nostrGroupId, appEvent.toJson().dropLast(1) + ",\"sig\":\"\"}") + } + store.recordGroupSnapshot(nostrGroupId, current.encode()) + rows + } catch (e: Exception) { + Log.w("MarmotManager", "Failed to sync Marmot system rows for $nostrGroupId", e) + emptyList() + } + } + /** Inner event id → delivering MLS epoch, for whatever the store kept. */ suspend fun storedEpochs(nostrGroupId: HexKey): Map = try { diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt index 62921bd304..2e45d96d63 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt @@ -119,24 +119,49 @@ class MarmotGroupList( /** * True if this inner event should appear as its own bubble in the group - * chat feed. Side-channel kinds (reactions, deletions) must still be - * consumed into LocalCache — they drive the reaction row on the target - * note and, for kind:5, revoke a prior reaction — but they must NOT show - * up as standalone messages. + * chat feed. Side-channel kinds must still be consumed into LocalCache — + * they drive the reaction row on the target note and, for kind:5, revoke a + * prior reaction — but they must NOT show up as standalone messages. * * Needed because WhiteNoise emits plain kind:7 reactions (emoji content + * `e` tag) and kind:5 unreacts inside kind:445, and the Marmot pipeline * blindly routed every inner event into the chatroom. The reaction then * rendered as a chat bubble containing just the emoji, with a quoted * citation of the target message — which reads exactly like a reply. + * + * The same reasoning covers the three kinds that are not chat either: + * + * - **1009 edits** replace a prior message's text in place. Rendering one + * as its own row would show the same sentence twice, and it must not + * advance an unread count — a reader caught up with the original is + * caught up with the edit. + * - **1200 agent-stream anchors** are hidden by their own feature: the + * payload is routing metadata with an empty body, so it would render as + * a blank bubble. What a reader sees is the live preview and then the + * authoritative kind:9. + * - **1210 system rows** are group-state captions, not messages. They are + * held back here rather than shown as a bubble of JSON; a renderer with + * a system-row style can surface them from the same log. */ private fun isDisplayableFeedMessage(msg: Note): Boolean { val kind = msg.event?.kind ?: return true - return kind != MARMOT_INNER_KIND_REACTION && kind != MARMOT_INNER_KIND_DELETION + return kind !in NON_CHAT_INNER_KINDS } companion object { private const val MARMOT_INNER_KIND_DELETION = 5 private const val MARMOT_INNER_KIND_REACTION = 7 + private const val MARMOT_INNER_KIND_EDIT = 1009 + private const val MARMOT_INNER_KIND_STREAM_START = 1200 + private const val MARMOT_INNER_KIND_SYSTEM = 1210 + + private val NON_CHAT_INNER_KINDS = + setOf( + MARMOT_INNER_KIND_DELETION, + MARMOT_INNER_KIND_REACTION, + MARMOT_INNER_KIND_EDIT, + MARMOT_INNER_KIND_STREAM_START, + MARMOT_INNER_KIND_SYSTEM, + ) } } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt new file mode 100644 index 0000000000..53ba60da22 --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt @@ -0,0 +1,265 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotAppEvent +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotSystemEvent +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotSystemType +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore +import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData +import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * Message edits (kind 1009) and group system rows (kind 1210) through the app + * layer. + * + * Both are places where getting the RULE wrong is invisible until two clients + * disagree: who may replace a message, which of two edits wins, and whether a + * caption gets written once or on every look. + */ +class MarmotEditsAndSystemRowsTest { + private val nostrGroupId = "e".repeat(64) + + private class Fixture { + val signer = NostrSignerInternal(KeyPair()) + val mlsStore = SnapshotStateStore() + val messageStore = SnapshotMessageStore() + + /** + * A commit only becomes canonical state once a relay took it — a + * manager with no publisher discards its pending state and never + * advances the epoch, so there would be nothing for a row to describe. + */ + val manager = MarmotManager(signer, mlsStore, messageStore, SnapshotBundleStore(), publisher = ACCEPTING_RELAY) + } + + private suspend fun Fixture.createGroup(name: String = "edits") = + manager.createGroup( + nostrGroupId, + MarmotGroupData(nostrGroupId = nostrGroupId, name = name, relays = listOf("wss://relay.invalid")), + ) + + private suspend fun MarmotManager.storedEvents(): List = loadStoredMessages(nostrGroupId).mapNotNull { Event.fromJsonOrNull(it) } + + @Test + fun `an author's own edit replaces their message`() = + runBlocking { + val f = Fixture() + f.createGroup() + val original = f.manager.buildTextMessage(nostrGroupId, "frist post") + f.manager.buildMessageEdit(nostrGroupId, original.innerEvent.id, "first post") + + val overlays = f.manager.editOverlays(f.manager.storedEvents()) + assertEquals("first post", overlays[original.innerEvent.id]) + } + + @Test + fun `an edit from another account is ignored`() = + runBlocking { + val f = Fixture() + f.createGroup() + val original = f.manager.buildTextMessage(nostrGroupId, "mine") + + // Hand-built rather than sent, because the point is a receiver + // refusing it: if authorship were checked only at send time, any + // member could rewrite anyone's words and no reader would notice. + val impostor = "f".repeat(64) + val forged = + MarmotAppEvent.build( + pubKey = impostor, + kind = MarmotAppEvent.KIND_EDIT, + content = "not mine", + createdAt = 1_800_000_000L, + tags = arrayOf(arrayOf("e", original.innerEvent.id)), + ) + f.manager.persistDecryptedMessage(nostrGroupId, forged.toJson().dropLast(1) + ",\"sig\":\"\"}") + + assertNull(f.manager.editOverlays(f.manager.storedEvents())[original.innerEvent.id]) + } + + @Test + fun `the latest edit wins`() = + runBlocking { + val f = Fixture() + f.createGroup() + val original = f.manager.buildTextMessage(nostrGroupId, "v1") + val author = f.signer.pubKey + for ((at, text) in listOf(1_800_000_000L to "v2", 1_800_000_100L to "v3", 1_800_000_050L to "v2b")) { + val edit = + MarmotAppEvent.build( + pubKey = author, + kind = MarmotAppEvent.KIND_EDIT, + content = text, + createdAt = at, + tags = arrayOf(arrayOf("e", original.innerEvent.id)), + ) + f.manager.persistDecryptedMessage(nostrGroupId, edit.toJson().dropLast(1) + ",\"sig\":\"\"}") + } + assertEquals("v3", f.manager.editOverlays(f.manager.storedEvents())[original.innerEvent.id]) + } + + @Test + fun `an edit for a message we do not hold overlays nothing`() = + runBlocking { + val f = Fixture() + f.createGroup() + f.manager.buildMessageEdit(nostrGroupId, "9".repeat(64), "orphan") + assertTrue(f.manager.editOverlays(f.manager.storedEvents()).isEmpty()) + } + + @Test + fun `the first look at a group writes no system rows`() = + runBlocking { + val f = Fixture() + f.createGroup() + // createGroup already established a baseline through the commit + // path; looking again with nothing changed must stay silent. + assertEquals(emptyList(), f.manager.syncGroupSystemRows(nostrGroupId)) + assertTrue(f.manager.storedEvents().none { it.kind == MarmotAppEvent.KIND_SYSTEM }) + } + + @Test + fun `a rename derives one row and only one`() = + runBlocking { + val f = Fixture() + f.createGroup(name = "before") + f.manager.syncGroupSystemRows(nostrGroupId) + + f.manager.setGroupProfile(nostrGroupId, "after", "") + + val rows = f.manager.storedEvents().filter { it.kind == MarmotAppEvent.KIND_SYSTEM } + assertEquals(1, rows.size, "one rename, one row") + val decoded = MarmotSystemEvent.fromAppEvent(MarmotAppEvent.fromEvent(rows.single())) + assertEquals(MarmotSystemType.GROUP_RENAMED, decoded?.systemType) + assertEquals("after", decoded?.name) + assertEquals(f.signer.pubKey, decoded?.actor) + + // Deriving again against the recorded baseline must not re-write + // the caption. Without that, every sync would add a row for a + // change that happened once. + f.manager.syncGroupSystemRows(nostrGroupId) + assertEquals(1, f.manager.storedEvents().count { it.kind == MarmotAppEvent.KIND_SYSTEM }) + } + + @Test + fun `the baseline survives a restart, so a change across one is still described`() = + runBlocking { + val f = Fixture() + f.createGroup(name = "before") + f.manager.syncGroupSystemRows(nostrGroupId) + + // A fresh manager over the same stores: the snapshot is what + // carries "where I left off" across the process boundary, and + // without it a restart would either lose the caption or re-derive + // the group from nothing. + val restarted = MarmotManager(f.signer, f.mlsStore, f.messageStore, SnapshotBundleStore(), publisher = ACCEPTING_RELAY) + restarted.restoreAll() + restarted.setGroupProfile(nostrGroupId, "after", "") + + val rows = restarted.loadStoredMessages(nostrGroupId).mapNotNull { Event.fromJsonOrNull(it) }.filter { it.kind == MarmotAppEvent.KIND_SYSTEM } + assertEquals(1, rows.size) + } +} + +/** Stands in for a relay that accepts every commit, so epochs actually advance. */ +private val ACCEPTING_RELAY = MarmotPublisher { _, _ -> true } + +private class SnapshotStateStore : MlsGroupStateStore { + private val states = mutableMapOf() + private val retained = mutableMapOf>() + + override suspend fun save( + nostrGroupId: String, + state: ByteArray, + ) { + states[nostrGroupId] = state + } + + override suspend fun load(nostrGroupId: String): ByteArray? = states[nostrGroupId] + + override suspend fun delete(nostrGroupId: String) { + states.remove(nostrGroupId) + retained.remove(nostrGroupId) + } + + override suspend fun listGroups(): List = states.keys.toList() + + override suspend fun saveRetainedEpochs( + nostrGroupId: String, + retainedSecrets: List, + ) { + retained[nostrGroupId] = retainedSecrets + } + + override suspend fun loadRetainedEpochs(nostrGroupId: String): List = retained[nostrGroupId] ?: emptyList() +} + +private class SnapshotMessageStore : MarmotMessageStore { + private val messages = mutableMapOf>() + private val snapshots = mutableMapOf() + + override suspend fun appendMessage( + nostrGroupId: String, + innerEventJson: String, + ) { + val log = messages.getOrPut(nostrGroupId) { mutableListOf() } + if (innerEventJson !in log) log.add(innerEventJson) + } + + override suspend fun loadMessages(nostrGroupId: String): List = messages[nostrGroupId]?.toList() ?: emptyList() + + override suspend fun delete(nostrGroupId: String) { + messages.remove(nostrGroupId) + snapshots.remove(nostrGroupId) + } + + override suspend fun recordGroupSnapshot( + nostrGroupId: String, + snapshotJson: String, + ) { + snapshots[nostrGroupId] = snapshotJson + } + + override suspend fun loadGroupSnapshot(nostrGroupId: String): String? = snapshots[nostrGroupId] +} + +private class SnapshotBundleStore : KeyPackageBundleStore { + private var snapshot: ByteArray? = null + + override suspend fun save(snapshot: ByteArray) { + this.snapshot = snapshot + } + + override suspend fun load(): ByteArray? = snapshot + + override suspend fun delete() { + snapshot = null + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotGroupSnapshot.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotGroupSnapshot.kt new file mode 100644 index 0000000000..8b3adfc473 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotGroupSnapshot.kt @@ -0,0 +1,235 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.foundation.appEvents + +import com.vitorpamplona.quartz.marmot.appComponents.MarmotGroupAvatar +import com.vitorpamplona.quartz.marmot.appComponents.MarmotGroupState +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlinx.serialization.json.Json +import kotlinx.serialization.json.JsonArray +import kotlinx.serialization.json.JsonObject +import kotlinx.serialization.json.JsonPrimitive +import kotlinx.serialization.json.boolean +import kotlinx.serialization.json.jsonArray +import kotlinx.serialization.json.jsonObject +import kotlinx.serialization.json.jsonPrimitive + +/** + * The slice of canonical group state that kind `1210` rows are derived from. + * + * Group system rows are **synthesized locally from canonical group state**, + * never received as messages — that is what makes them trustworthy, since a + * row derived from an MLS-authenticated commit cannot be forged by one member + * and every client applying the same commit derives the same row. So the input + * to that derivation is a snapshot of the state itself, and a row is the + * difference between two of them. + * + * Only the fields the registry's row types actually speak about are kept. + * Anything else changing is a state change with no row to describe it, and + * inventing one would put a caption in the timeline that no other + * implementation writes. + */ +data class MarmotGroupSnapshot( + /** MLS-authenticated account identities holding at least one member leaf. */ + val members: Set, + /** Accounts named by the admin policy, whether or not they still hold a leaf. */ + val admins: Set, + val name: String, + /** True once the group has an avatar on either carrier. */ + val hasAvatar: Boolean, + /** The avatar's identity, so a REPLACEMENT is a change and not a no-op. */ + val avatarFingerprint: String, + val isDisbanded: Boolean, +) { + /** + * The snapshot as JSON, for the local store that remembers what the last + * derived rows were derived FROM. + * + * This never crosses the wire and is not a Marmot payload — it is a + * client's memory of where it left off, so nothing here has to be + * canonical. Sets are sorted anyway so a re-encode of unchanged state is + * byte-identical and cannot look like a change. + */ + fun encode(): String = + Json.encodeToString( + JsonObject.serializer(), + JsonObject( + mapOf( + "members" to JsonArray(members.sorted().map { JsonPrimitive(it) }), + "admins" to JsonArray(admins.sorted().map { JsonPrimitive(it) }), + "name" to JsonPrimitive(name), + "has_avatar" to JsonPrimitive(hasAvatar), + "avatar" to JsonPrimitive(avatarFingerprint), + "disbanded" to JsonPrimitive(isDisbanded), + ), + ), + ) + + companion object { + /** + * Read a snapshot back, or null when the stored text is not one. + * + * A null is not a failure to recover from: the caller treats it as + * "no baseline", which re-establishes one on the next observation. The + * cost is missing the rows for one transition, not a broken group. + */ + fun decode(json: String): MarmotGroupSnapshot? = + try { + val obj = Json.parseToJsonElement(json).jsonObject + MarmotGroupSnapshot( + members = obj["members"]?.jsonArray?.map { it.jsonPrimitive.content }?.toSet() ?: emptySet(), + admins = obj["admins"]?.jsonArray?.map { it.jsonPrimitive.content }?.toSet() ?: emptySet(), + name = obj["name"]?.jsonPrimitive?.content.orEmpty(), + hasAvatar = obj["has_avatar"]?.jsonPrimitive?.boolean == true, + avatarFingerprint = obj["avatar"]?.jsonPrimitive?.content.orEmpty(), + isDisbanded = obj["disbanded"]?.jsonPrimitive?.boolean == true, + ) + } catch (_: Exception) { + null + } + + val EMPTY = + MarmotGroupSnapshot( + members = emptySet(), + admins = emptySet(), + name = "", + hasAvatar = false, + avatarFingerprint = "", + isDisbanded = false, + ) + + /** + * Take a snapshot of one epoch's state. + * + * [memberAccounts] must be the account identities of the CURRENT + * member leaves in the same epoch as [state] — the admin policy alone + * cannot say who is in the group, only who is allowed to act if they + * are. + * + * [name] and [admins] default to the current profile's components and + * are overridable for a reason: a legacy MIP-01 group keeps both in its + * single `0xF2EE` extension, where [state] cannot see them. Reading + * them off [state] alone would make every legacy group look permanently + * nameless and adminless — so no rename would ever produce a row. + */ + fun of( + state: MarmotGroupState, + memberAccounts: Collection, + name: String = state.profile?.name.orEmpty(), + admins: Collection = state.adminPolicy?.adminHexKeys.orEmpty(), + ): MarmotGroupSnapshot { + val avatar = state.preferredAvatar + return MarmotGroupSnapshot( + members = memberAccounts.toSet(), + admins = admins.toSet(), + name = name, + hasAvatar = avatar != null, + avatarFingerprint = avatarFingerprint(avatar), + isDisbanded = state.isDisbanded, + ) + } + + /** + * A stable identity for whichever avatar the group resolves to. + * + * Swapping one avatar for another is a change a member should see, and + * a plain "is there one" flag would call that a no-op. The URL avatar + * is identified by its (already normalized) URL and the Blossom one by + * its content hash; the carrier is part of the fingerprint so moving + * between them counts even if nothing else did. + */ + private fun avatarFingerprint(avatar: MarmotGroupAvatar?): String = + when (avatar) { + null -> "" + is MarmotGroupAvatar.Url -> "url:${avatar.avatar.url}" + is MarmotGroupAvatar.Blossom -> + "blossom:" + + avatar.image.imageHash + ?.toHexKey() + .orEmpty() + } + } +} + +/** + * Derives kind `1210` rows from the difference between two group snapshots. + * + * The whole point is that this is a pure function of canonical state: two + * clients that applied the same commits hold the same before and after, so they + * write the same rows in the same order without ever exchanging one. Nothing + * here reads the wire. + */ +object MarmotSystemRowDiff { + /** + * The rows describing the transition from [before] to [after]. + * + * [actor] is the account that committed the change, when it is known. + * A row whose actor is unknown is still a true row — the change happened — + * so it is emitted unattributed rather than dropped. + * + * Ordering is deliberate and fixed: departures before arrivals, membership + * before admin rights, and the group-wide changes last. Two clients that + * derive rows in different orders would show the same history differently. + */ + fun diff( + before: MarmotGroupSnapshot, + after: MarmotGroupSnapshot, + actor: HexKey? = null, + ): List { + val rows = ArrayList() + + // A member who left under their own SelfRemove proposal is not the + // same event as one an admin removed, and the registry has both. We + // can only tell them apart when the actor is the departing account + // itself — anything else is a removal by someone. + for (gone in (before.members - after.members).sorted()) { + val type = if (actor != null && actor == gone) MarmotSystemType.MEMBER_LEFT else MarmotSystemType.MEMBER_REMOVED + rows.add(MarmotSystemEvent(type, actor = actor, subject = gone)) + } + for (added in (after.members - before.members).sorted()) { + rows.add(MarmotSystemEvent(MarmotSystemType.MEMBER_ADDED, actor = actor, subject = added)) + } + + // Admin rows are about the policy, not about presence: an account can + // gain admin rights in the same commit that adds it, and both rows are + // true and both are worth showing. + for (demoted in (before.admins - after.admins).sorted()) { + rows.add(MarmotSystemEvent(MarmotSystemType.ADMIN_REMOVED, actor = actor, subject = demoted)) + } + for (promoted in (after.admins - before.admins).sorted()) { + rows.add(MarmotSystemEvent(MarmotSystemType.ADMIN_ADDED, actor = actor, subject = promoted)) + } + + if (before.name != after.name) { + rows.add(MarmotSystemEvent(MarmotSystemType.GROUP_RENAMED, actor = actor, name = after.name)) + } + if (before.avatarFingerprint != after.avatarFingerprint) { + rows.add(MarmotSystemEvent(MarmotSystemType.GROUP_AVATAR_CHANGED, actor = actor)) + } + // Disband is absorbing and terminal, so it can only be entered once — + // and a group that somehow reported leaving it has no row for that. + if (!before.isDisbanded && after.isDisbanded) { + rows.add(MarmotSystemEvent(MarmotSystemType.GROUP_DISBANDED, actor = actor)) + } + return rows + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemEvent.kt index 24a70aad34..3f0ca9cfee 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemEvent.kt @@ -157,7 +157,7 @@ class MarmotSystemEvent( sb.append('"') for (ch in value) { when (ch) { - '"' -> sb.append("ESC\"") + '"' -> sb.append("\\\"") '\\' -> sb.append("\\\\") '\n' -> sb.append("\\n") '\r' -> sb.append("\\r") diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt index e2073dc765..82f056316b 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt @@ -91,4 +91,24 @@ interface MarmotMessageStore { /** Inner event id → the MLS epoch that delivered it, for what was recorded. */ suspend fun loadEpochs(nostrGroupId: String): Map = emptyMap() + + /** + * Remember the group state the last kind `1210` rows were derived FROM. + * + * System rows are synthesized locally from canonical state rather than + * received as messages, so a client needs a baseline to derive against — + * otherwise it either re-emits every row each time it looks at the group, + * or emits none at all. This is that baseline: a client's memory of where + * it left off, never a wire value. + * + * Optional, like [recordEpoch]. A store that keeps no snapshot simply + * derives no rows, which is a missing caption rather than a broken group. + */ + suspend fun recordGroupSnapshot( + nostrGroupId: String, + snapshotJson: String, + ) = Unit + + /** The last recorded snapshot, or null when there is no baseline yet. */ + suspend fun loadGroupSnapshot(nostrGroupId: String): String? = null } diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemRowDiffTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemRowDiffTest.kt new file mode 100644 index 0000000000..2fb87959ef --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemRowDiffTest.kt @@ -0,0 +1,170 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.foundation.appEvents + +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * Group system rows are derived, not received, so the derivation itself is the + * interoperability surface: two clients that applied the same commits must + * write the same rows, in the same order, without exchanging one. + */ +class MarmotSystemRowDiffTest { + private val alice = "a".repeat(64) + private val bob = "b".repeat(64) + private val carol = "c".repeat(64) + + private fun snapshot( + members: Set = setOf(alice), + admins: Set = setOf(alice), + name: String = "group", + avatar: String = "", + disbanded: Boolean = false, + ) = MarmotGroupSnapshot( + members = members, + admins = admins, + name = name, + hasAvatar = avatar.isNotEmpty(), + avatarFingerprint = avatar, + isDisbanded = disbanded, + ) + + @Test + fun `an unchanged snapshot produces no rows`() { + // The baseline case, and the one that keeps a timeline from filling + // with captions every time state is merely re-observed. + assertEquals(emptyList(), MarmotSystemRowDiff.diff(snapshot(), snapshot())) + } + + @Test + fun `an added member produces one member_added row naming them`() { + val rows = MarmotSystemRowDiff.diff(snapshot(), snapshot(members = setOf(alice, bob)), actor = alice) + assertEquals(1, rows.size) + assertEquals(MarmotSystemType.MEMBER_ADDED, rows[0].systemType) + assertEquals(bob, rows[0].subject) + assertEquals(alice, rows[0].actor) + } + + @Test + fun `a member who removed themselves left, anyone else was removed`() { + // The registry distinguishes these and the only thing that can tell + // them apart is whether the committer is the departing account. + val before = snapshot(members = setOf(alice, bob)) + val after = snapshot(members = setOf(alice)) + + assertEquals(MarmotSystemType.MEMBER_LEFT, MarmotSystemRowDiff.diff(before, after, actor = bob)[0].systemType) + assertEquals(MarmotSystemType.MEMBER_REMOVED, MarmotSystemRowDiff.diff(before, after, actor = alice)[0].systemType) + assertEquals(MarmotSystemType.MEMBER_REMOVED, MarmotSystemRowDiff.diff(before, after)[0].systemType) + } + + @Test + fun `admin changes are about the policy, not about presence`() { + // Bob is added and promoted in one commit: both rows are true, and a + // client that collapsed them would lose who can act in the group. + val rows = + MarmotSystemRowDiff.diff( + snapshot(), + snapshot(members = setOf(alice, bob), admins = setOf(alice, bob)), + actor = alice, + ) + assertEquals( + listOf(MarmotSystemType.MEMBER_ADDED, MarmotSystemType.ADMIN_ADDED), + rows.map { it.systemType }, + ) + } + + @Test + fun `rows come out in a fixed order regardless of set iteration`() { + // Departures, then arrivals, then rights, then the group-wide changes. + // Nothing here may depend on hash order: two clients would then show + // the same history differently forever. + val rows = + MarmotSystemRowDiff.diff( + snapshot(members = setOf(alice, bob), admins = setOf(alice, bob), name = "old"), + snapshot(members = setOf(alice, carol), admins = setOf(alice), name = "new", avatar = "url:https://x.test/a.png"), + actor = alice, + ) + assertEquals( + listOf( + MarmotSystemType.MEMBER_REMOVED, + MarmotSystemType.MEMBER_ADDED, + MarmotSystemType.ADMIN_REMOVED, + MarmotSystemType.GROUP_RENAMED, + MarmotSystemType.GROUP_AVATAR_CHANGED, + ), + rows.map { it.systemType }, + ) + assertEquals("new", rows.first { it.systemType == MarmotSystemType.GROUP_RENAMED }.name) + } + + @Test + fun `replacing one avatar with another is a change`() { + // A bare "does it have one" flag would call this a no-op and the + // group's picture would change with nothing said about it. + val rows = + MarmotSystemRowDiff.diff( + snapshot(avatar = "url:https://x.test/a.png"), + snapshot(avatar = "blossom:aabb"), + ) + assertEquals(listOf(MarmotSystemType.GROUP_AVATAR_CHANGED), rows.map { it.systemType }) + } + + @Test + fun `disband is emitted once because the state is absorbing`() { + val disbanded = snapshot(disbanded = true) + assertEquals( + listOf(MarmotSystemType.GROUP_DISBANDED), + MarmotSystemRowDiff.diff(snapshot(), disbanded).map { it.systemType }, + ) + assertEquals(emptyList(), MarmotSystemRowDiff.diff(disbanded, disbanded)) + } + + @Test + fun `a snapshot survives a round trip through its stored form`() { + val original = snapshot(members = setOf(alice, bob), admins = setOf(bob), name = "a \"quoted\" name", avatar = "url:https://x.test/a.png") + assertEquals(original, MarmotGroupSnapshot.decode(original.encode())) + // Encoding is stable, so re-storing unchanged state cannot look like a change. + assertEquals(original.encode(), original.copy(members = setOf(bob, alice)).encode()) + } + + @Test + fun `unreadable stored state is no baseline rather than a crash`() { + assertNull(MarmotGroupSnapshot.decode("not json")) + } + + @Test + fun `a row with a quote in its text stays valid JSON`() { + // The escape was written as the literal text `ESC"`, which produced a + // content string no decoder could read back — and a 1210's content is + // inside the app event's id preimage, so a peer would reject the row + // outright rather than merely mis-render it. + val row = MarmotSystemEvent(MarmotSystemType.GROUP_RENAMED, actor = alice, name = "x", text = "renamed to \"quoted\"") + val json = row.toContentJson() + assertTrue(!json.contains("ESC"), json) + + val event = row.toAppEvent(alice, 1700000000L) + val decoded = MarmotSystemEvent.fromAppEvent(MarmotAppEvent.decode(event.toJson())) + assertEquals("renamed to \"quoted\"", decoded?.text) + } +} From fad7347ca92a7ff45f302175baec3b166d4f80b4 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 16:49:39 +0000 Subject: [PATCH 36/79] feat(marmot): encrypted media v2 end to end MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit `marmot.group.encrypted-media.v2` (0x800b) had a codec, a policy type and a key schedule in quartz, and not one caller. The group could not carry a media policy, nothing derived a v2 key, and Android still sent MIP-04 attachments — which peers on the current profile no longer create. The policy is now group state: read through `MarmotGroupState`, committed through `setEncryptedMediaPolicy`, and honoured by the sender. Both of its lists are ordered on purpose — `default_blob_endpoints` order IS the upload/fetch fallback priority — so reordering one is changing where the group uploads, not reformatting it. Sending and receiving run through the group's own MLS exporter, so the blob store sees ciphertext and its hash and is storage rather than a party to the conversation. `amy marmot media` drives the whole loop (policy/set-policy/send/get), and Android picks v2 per group: a group carrying `0x800b` gets a v2 reference, one that does not keeps MIP-04, and the frozen v1 policy at `0x8008` is never reinterpreted as v2. The URL normalizer is now shared rather than approximated twice. The media policy says its base URLs use the same WHATWG normalization the avatar component defines, and it was instead checking a hand-rolled structural subset — which rejected `https://host//double/`. That URL is normalized: WHATWG keeps the path as a segment list and only `.` and `..` are special, which the reference `url` crate confirms. So the old check refused group state the reference implementation produces, the exact failure the shared normalizer exists to prevent. `http` is permitted for a blob store and not for an avatar, because the components differ there and a self-hosted store on a private network is real. Two smaller things the reading turned up. `0x8007` was implemented but missing from the advertised supported-component list, so a group requiring an avatar URL would have refused our KeyPackage. And the note claiming we do not advertise the agent-stream send/fanout capabilities has been false since the sequence store landed. Epoch 0 deliberately does NOT carry the media policy: the reference implementation's own epoch-0 GroupContext does not, and adding it unasked would both diverge from that and require every joiner to advertise `0x800b` before it could be added. The conformance vector caught that when the default went the other way. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../ui/screen/loggedIn/AccountViewModel.kt | 24 ++ .../chats/marmotGroup/MarmotGroupChatView.kt | 1 + .../marmotGroup/MarmotGroupIconDisplay.kt | 4 +- .../marmotGroup/send/MarmotFileSender.kt | 20 +- .../marmotGroup/send/MarmotFileUploader.kt | 54 ++- .../com/vitorpamplona/amethyst/cli/Main.kt | 4 +- .../cli/commands/GroupMetadataCommands.kt | 4 +- .../cli/commands/MarmotMediaCommands.kt | 349 ++++++++++++++++++ .../amethyst/commons/marmot/MarmotManager.kt | 102 +++++ .../CurrentProfileGroupFactory.kt | 26 +- .../appComponents/EncryptedMediaPolicyV2.kt | 42 +-- .../appComponents/EncryptedMediaV2Cipher.kt | 82 ++++ .../marmot/appComponents/GroupAvatarUrlV1.kt | 6 +- .../marmot/appComponents/MarmotGroupState.kt | 16 + .../{MarmotHttpsUrl.kt => MarmotWebUrl.kt} | 73 ++-- .../appComponents/EncryptedMediaV2Test.kt | 34 +- .../appComponents/GroupAvatarUrlV1Test.kt | 26 +- 17 files changed, 784 insertions(+), 83 deletions(-) create mode 100644 cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/MarmotMediaCommands.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Cipher.kt rename quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/{MarmotHttpsUrl.kt => MarmotWebUrl.kt} (80%) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt index e3262b35e5..2ec9c44691 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt @@ -115,6 +115,7 @@ import com.vitorpamplona.quartz.experimental.clink.pointers.NDebit import com.vitorpamplona.quartz.experimental.ephemChat.chat.RoomId import com.vitorpamplona.quartz.experimental.interactiveStories.InteractiveStoryBaseEvent import com.vitorpamplona.quartz.experimental.interactiveStories.InteractiveStoryReadingStateEvent +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaReferenceV2 import com.vitorpamplona.quartz.marmot.appComponents.GroupBlossomImageV1 import com.vitorpamplona.quartz.nip01Core.core.Address import com.vitorpamplona.quartz.nip01Core.core.AddressableEvent @@ -2453,6 +2454,29 @@ class AccountViewModel( fun marmotMediaExporterSecret(nostrGroupId: String): ByteArray? = account.marmotManager?.mediaExporterSecret(nostrGroupId) + /** + * True when this group carries the `encrypted-media-v2` policy (`0x800b`) + * and a sender should therefore produce v2 references. + * + * A group without it is not a licence to reinterpret the frozen v1 policy + * at `0x8008` as v2 — they are different components — so this is a plain + * "does the group say v2", and the sender falls back to MIP-04 when it + * does not. + */ + fun marmotUsesEncryptedMediaV2(nostrGroupId: String): Boolean = account.marmotManager?.encryptedMediaPolicy(nostrGroupId) != null + + /** Post the kind:9 carrying an `encrypted-media-v2` attachment. */ + suspend fun sendMarmotGroupEncryptedMediaV2( + nostrGroupId: String, + reference: EncryptedMediaReferenceV2, + caption: String, + ) { + val manager = account.marmotManager ?: return + val bundle = manager.buildMediaMessage(nostrGroupId, reference, caption, persistOwn = false) + val relays = account.marmot.marmotGroupRelays(nostrGroupId) + account.marmot.sendMarmotGroupMessage(nostrGroupId, bundle.innerEvent, relays) + } + suspend fun createMarmotGroup( nostrGroupId: String, name: String = "", diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt index 6075939f97..eaa69731b0 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt @@ -346,6 +346,7 @@ private fun MarmotGroupFileUploadDialog( } }, context = context, + useEncryptedMediaV2 = accountViewModel.marmotUsesEncryptedMediaV2(nostrGroupId), onceUploaded = { uploads -> MarmotFileSender(nostrGroupId, accountViewModel).send(uploads) onUpload() diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupIconDisplay.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupIconDisplay.kt index d26d064494..8132972932 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupIconDisplay.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupIconDisplay.kt @@ -29,7 +29,7 @@ import com.vitorpamplona.amethyst.commons.model.marmotGroups.MarmotGroupImage import com.vitorpamplona.amethyst.model.nip11RelayInfo.loadRelayInfo import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel import com.vitorpamplona.quartz.marmot.appComponents.GroupAvatarUrlV1 -import com.vitorpamplona.quartz.marmot.appComponents.MarmotHttpsUrl +import com.vitorpamplona.quartz.marmot.appComponents.MarmotWebUrl import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupImageCipher import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer @@ -118,7 +118,7 @@ fun rememberMarmotGroupAvatarUrl( ): String? { val link = remember(avatarUrl) { - avatarUrl?.url?.takeIf { it.isNotEmpty() && MarmotHttpsUrl.isSafeToContact(it) } + avatarUrl?.url?.takeIf { it.isNotEmpty() && MarmotWebUrl.isSafeToContact(it) } } // Branch rather than resolving both: the Blossom path registers a // decryption cipher and probes servers as a side effect, and neither is diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileSender.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileSender.kt index bf512b716d..19bc05ce08 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileSender.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileSender.kt @@ -25,8 +25,14 @@ import com.vitorpamplona.quartz.marmot.mip04EncryptedMedia.buildMip04IMetaTag import com.vitorpamplona.quartz.nip01Core.core.HexKey /** - * Sends uploaded MIP-04 encrypted media as Marmot group messages. - * Each upload result becomes a separate kind:9 message with an imeta tag. + * Sends uploaded encrypted media as Marmot group messages. Each upload result + * becomes a separate kind:9 with an `imeta` tag. + * + * Which reference format the tag carries is the GROUP's decision, made when the + * upload was encrypted: a group carrying the `encrypted-media-v2` policy + * (`0x800b`) gets a v2 reference, and one that does not gets the MIP-04 shape. + * The frozen v1 policy at `0x8008` is a different component and is never + * reinterpreted as v2, so there is no third case here. */ class MarmotFileSender( val nostrGroupId: HexKey, @@ -34,6 +40,16 @@ class MarmotFileSender( ) { suspend fun send(uploads: List) { for (upload in uploads) { + val v2 = upload.encryptedMediaV2 + if (v2 != null) { + accountViewModel.sendMarmotGroupEncryptedMediaV2( + nostrGroupId = nostrGroupId, + reference = v2, + caption = upload.caption.orEmpty(), + ) + continue + } + val imeta = buildMip04IMetaTag( url = upload.url, diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileUploader.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileUploader.kt index 44dd46fda4..6f3a514e11 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileUploader.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileUploader.kt @@ -29,6 +29,11 @@ import com.vitorpamplona.amethyst.service.uploads.UploadOrchestrator import com.vitorpamplona.amethyst.service.uploads.UploadingState import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.utils.ChatFileUploadState import com.vitorpamplona.amethyst.ui.stringRes +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaPolicyV2 +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaReferenceV2 +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaV2Cipher +import com.vitorpamplona.quartz.marmot.appComponents.MarmotMediaType +import com.vitorpamplona.quartz.marmot.appComponents.MediaLocatorV2 import com.vitorpamplona.quartz.marmot.mip04EncryptedMedia.Mip04NostrCipher /** @@ -44,6 +49,16 @@ class Mip04UploadResult( val blurhash: String?, val caption: String?, val thumbhash: String? = null, + /** + * The `encrypted-media-v2` reference, when the group's policy asked for + * one. Null means this upload is a MIP-04 attachment and the fields above + * are what builds its tag. + * + * The two are carried together rather than as two result types because the + * upload pipeline is identical — only the cipher and the tag differ — and + * the choice belongs to the group, not to the uploader. + */ + val encryptedMediaV2: EncryptedMediaReferenceV2? = null, ) /** @@ -60,6 +75,11 @@ class MarmotFileUploader( exporterSecret: ByteArray, onError: (title: String, message: String) -> Unit, context: Context, + /** + * Produce `encrypted-media-v2` references instead of MIP-04 ones. + * Decided by the group's policy component, not by the uploader. + */ + useEncryptedMediaV2: Boolean = false, onceUploaded: suspend (List) -> Unit, ) { val multiOrchestrator = viewState.multiOrchestrator ?: return @@ -75,7 +95,14 @@ class MarmotFileUploader( val mimeType = media.mimeType ?: "application/octet-stream" val filename = resolveFilename(context, media.uri, mimeType) - val cipher = Mip04NostrCipher(exporterSecret, mimeType, filename) + // v2 puts `m` inside both the key derivation and the AEAD + // associated data, so it has to be the canonical form and not + // whatever the content resolver reported. A type that will not + // canonicalize falls back to MIP-04 for this file rather than + // producing a reference no receiver can key. + val canonicalMediaType = if (useEncryptedMediaV2) MarmotMediaType.canonicalize(mimeType) else null + val v2Cipher = canonicalMediaType?.let { EncryptedMediaV2Cipher(exporterSecret, it, filename) } + val cipher = v2Cipher ?: Mip04NostrCipher(exporterSecret, mimeType, filename) item.orchestrator.uploadEncrypted( uri = media.uri, @@ -93,17 +120,38 @@ class MarmotFileUploader( val state = item.orchestrator.progressState.value if (state is UploadingState.Finished && state.result is UploadOrchestrator.OrchestratorResult.ServerResult) { val serverResult = state.result + // The reference is built from what the cipher recorded while + // encrypting the bytes the pipeline actually uploaded — after + // compression and metadata stripping — because that is what the + // key was derived from. + val reference = + v2Cipher?.let { + EncryptedMediaReferenceV2( + locators = + listOf( + MediaLocatorV2(EncryptedMediaPolicyV2.INITIAL_LOCATOR_KIND, serverResult.url), + ), + ciphertextSha256 = it.ciphertextSha256, + plaintextSha256 = it.plaintextSha256, + nonce = it.nonce, + mediaType = it.mediaType, + filename = filename, + dim = serverResult.fileHeader.dim?.toString(), + thumbhash = serverResult.fileHeader.thumbHash?.thumbhash, + ) + } results.add( Mip04UploadResult( url = serverResult.url, mimeType = mimeType, filename = filename, - originalFileHash = cipher.originalFileHash, - nonce = cipher.nonce, + originalFileHash = (cipher as? Mip04NostrCipher)?.originalFileHash ?: ByteArray(0), + nonce = (cipher as? Mip04NostrCipher)?.nonce ?: ByteArray(0), dimensions = serverResult.fileHeader.dim?.toString(), blurhash = serverResult.fileHeader.blurHash?.blurhash, caption = viewState.caption.ifEmpty { null }, thumbhash = serverResult.fileHeader.thumbHash?.thumbhash, + encryptedMediaV2 = reference, ), ) } else { diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Main.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Main.kt index 5d5997dfa6..a66a197cde 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Main.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Main.kt @@ -51,6 +51,7 @@ import com.vitorpamplona.amethyst.cli.commands.KeyPackageCommands import com.vitorpamplona.amethyst.cli.commands.KindCommand import com.vitorpamplona.amethyst.cli.commands.LoginCommand import com.vitorpamplona.amethyst.cli.commands.LogoffCommand +import com.vitorpamplona.amethyst.cli.commands.MarmotMediaCommands import com.vitorpamplona.amethyst.cli.commands.MarmotResetCommand import com.vitorpamplona.amethyst.cli.commands.MessageCommands import com.vitorpamplona.amethyst.cli.commands.NamecoinCommand @@ -371,12 +372,13 @@ private suspend fun marmotDispatch( route( name = "marmot", tail = tail, - usage = "marmot ", + usage = "marmot ", routes = mapOf( "key-package" to { rest -> KeyPackageCommands.dispatch(dataDir, rest) }, "group" to { rest -> GroupCommands.dispatch(dataDir, rest) }, "message" to { rest -> MessageCommands.dispatch(dataDir, rest) }, + "media" to { rest -> MarmotMediaCommands.dispatch(dataDir, rest) }, "stream" to { rest -> StreamCommands.dispatch(dataDir, rest) }, "await" to { rest -> AwaitCommands.dispatch(dataDir, rest) }, "reset" to { rest -> MarmotResetCommand.run(dataDir, rest) }, diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt index 3b298ffb32..b866836940 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt @@ -31,7 +31,7 @@ import com.vitorpamplona.amethyst.commons.util.deleteOrWarn import com.vitorpamplona.quartz.marmot.OutboundGroupEvent import com.vitorpamplona.quartz.marmot.appComponents.GroupAvatarUrlV1 import com.vitorpamplona.quartz.marmot.appComponents.GroupBlossomImageV1 -import com.vitorpamplona.quartz.marmot.appComponents.MarmotHttpsUrl +import com.vitorpamplona.quartz.marmot.appComponents.MarmotWebUrl import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupImageEncryption import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray @@ -164,7 +164,7 @@ object GroupMetadataCommands { val avatar = try { GroupAvatarUrlV1( - url = MarmotHttpsUrl.normalize(url), + url = MarmotWebUrl.normalize(url, label = "avatar URL"), dim = dim?.encodeToByteArray() ?: ByteArray(0), thumbhash = thumbhash?.encodeToByteArray() ?: ByteArray(0), ) diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/MarmotMediaCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/MarmotMediaCommands.kt new file mode 100644 index 0000000000..f7bff6f6dd --- /dev/null +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/MarmotMediaCommands.kt @@ -0,0 +1,349 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.cli.commands + +import com.vitorpamplona.amethyst.cli.Args +import com.vitorpamplona.amethyst.cli.Context +import com.vitorpamplona.amethyst.cli.DataDir +import com.vitorpamplona.amethyst.cli.Output +import com.vitorpamplona.amethyst.commons.service.upload.BlossomAuth +import com.vitorpamplona.amethyst.commons.service.upload.BlossomClient +import com.vitorpamplona.quartz.marmot.appComponents.BlobStoreEndpointV2 +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaPolicyV2 +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaReferenceV2 +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaV2 +import com.vitorpamplona.quartz.marmot.appComponents.MarmotMediaType +import com.vitorpamplona.quartz.marmot.appComponents.MediaLocatorV2 +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.utils.sha256.sha256 +import java.io.File + +/** + * `amy marmot media` — `encrypted-media-v2` attachments (`0x800b`). + * + * The server only ever sees ciphertext and its hash. The key is derived from + * the group's own MLS exporter and never leaves the group, so the blob store + * is storage and not a party to the conversation. + */ +object MarmotMediaCommands { + val USAGE: String = + """ + |amy marmot media — encrypted-media-v2 attachments + | + | marmot media policy GID print the group's media policy + | marmot media set-policy GID URL[,URL…] commit a policy naming these blob stores, + | in upload/fetch fallback order + | marmot media send GID FILE [--caption TXT] encrypt, upload, and post the kind:9 + | [--server URL] [--mime TYPE] (--server overrides the policy's first endpoint) + | marmot media get GID EVENT_ID --out PATH fetch, decrypt and verify an attachment + """.trimMargin() + + suspend fun dispatch( + dataDir: DataDir, + tail: Array, + ): Int = + route( + "media", + tail, + "media …", + mapOf( + "policy" to { rest -> policy(dataDir, rest) }, + "set-policy" to { rest -> setPolicy(dataDir, rest) }, + "send" to { rest -> send(dataDir, rest) }, + "get" to { rest -> get(dataDir, rest) }, + ), + help = USAGE, + ) + + private suspend fun policy( + dataDir: DataDir, + rest: Array, + ): Int { + if (rest.isEmpty()) return Output.error("bad_args", "media policy ") + Context.open(dataDir).use { ctx -> + ctx.prepare() + val gid = ctx.resolveGroupId(rest[0]) + ctx.syncIncoming() + if (!ctx.marmot.isMember(gid)) return Output.error("not_member", "not a member of group $gid") + + val policy = ctx.marmot.encryptedMediaPolicy(gid) + Output.emit( + mapOf( + "group_id" to gid, + "media_format" to policy?.mediaFormat, + "allowed_locator_kinds" to policy?.allowedLocatorKinds, + "default_blob_endpoints" to + policy?.defaultBlobEndpoints?.map { + mapOf("locator_kind" to it.locatorKind, "base_url" to it.baseUrl) + }, + ), + ) + return 0 + } + } + + private suspend fun setPolicy( + dataDir: DataDir, + rest: Array, + ): Int { + if (rest.size < 2) return Output.error("bad_args", "media set-policy [,…]") + val urls = rest[1].split(',').map { it.trim() }.filter { it.isNotEmpty() } + if (urls.isEmpty()) return Output.error("bad_args", "media set-policy needs at least one base URL") + + val policy = + try { + EncryptedMediaPolicyV2( + allowedLocatorKinds = listOf(EncryptedMediaPolicyV2.INITIAL_LOCATOR_KIND), + // Order is preserved deliberately: it IS the upload/fetch + // fallback priority, so sorting it would change where the + // group uploads. + defaultBlobEndpoints = + urls.map { BlobStoreEndpointV2(EncryptedMediaPolicyV2.INITIAL_LOCATOR_KIND, it) }, + ) + } catch (e: IllegalArgumentException) { + return Output.error("bad_args", e.message ?: "invalid media policy") + } + + Context.open(dataDir).use { ctx -> + ctx.prepare() + val gid = ctx.resolveGroupId(rest[0]) + ctx.syncIncoming() + if (!ctx.marmot.isMember(gid)) return Output.error("not_member", "not a member of group $gid") + + val commit = ctx.marmot.setEncryptedMediaPolicy(gid, policy) + val targets = ctx.marmotGroupRelays(gid).ifEmpty { ctx.outboxRelays() } + val ack = ctx.publish(commit.signedEvent, targets) + RawEventSupport.publishGuard(ack, commit.signedEvent.id)?.let { return it } + + Output.emit( + mapOf( + "group_id" to gid, + "default_blob_endpoints" to policy.defaultBlobEndpoints.map { it.baseUrl }, + "epoch" to ctx.marmot.groupEpoch(gid), + "commit_event_id" to commit.signedEvent.id, + ) + RawEventSupport.ackFields(ack), + ) + return 0 + } + } + + private suspend fun send( + dataDir: DataDir, + rest: Array, + ): Int { + val args = Args(rest) + val gid = args.positional(0, "gid") + val path = args.positional(1, "file") + val serverFlag = args.flag("server") + val caption = args.flag("caption") ?: "" + val mime = args.flag("mime") + args.rejectUnknown() + + val file = File(path) + if (!file.isFile) return Output.error("bad_args", "no such file: $path") + + Context.open(dataDir).use { ctx -> + ctx.prepare() + val resolved = ctx.resolveGroupId(gid) + ctx.syncIncoming() + if (!ctx.marmot.isMember(resolved)) return Output.error("not_member", "not a member of group $resolved") + + val endpoint = + serverFlag + ?: ctx.marmot + .encryptedMediaPolicy(resolved) + ?.defaultBlobEndpoints + ?.firstOrNull { it.locatorKind == EncryptedMediaPolicyV2.INITIAL_LOCATOR_KIND } + ?.baseUrl + ?: return Output.error( + "no_endpoint", + "group $resolved has no encrypted-media policy; pass --server or commit one with media set-policy", + ) + val store = BlobStoreEndpointV2(EncryptedMediaPolicyV2.INITIAL_LOCATOR_KIND, endpoint) + + // `m` has to be byte-for-byte canonical: it feeds both the key + // derivation and the AEAD associated data, so "image/JPEG" and + // "image/jpeg" would be different keys for the same file. + val rawMediaType = mime ?: guessMediaType(file.name) + // A media type that will not canonicalize is refused rather than + // guessed at: `m` is inside both the key derivation and the AEAD + // associated data, so a sender and a receiver that canonicalized it + // differently would not agree on the key at all. + val mediaType = + MarmotMediaType.canonicalize(rawMediaType) + ?: return Output.error("bad_args", "'$rawMediaType' is not a usable media type") + val encrypted = + try { + ctx.marmot.encryptMedia(resolved, file.readBytes(), mediaType, file.name) + } catch (e: IllegalArgumentException) { + return Output.error("bad_args", e.message ?: "cannot encrypt this attachment") + } + + val ciphertextHash = encrypted.ciphertextSha256.toHexKey() + val uploadedUrl: String + try { + val auth = + BlossomAuth.createUploadAuth( + ciphertextHash, + encrypted.ciphertext.size.toLong(), + "Encrypted attachment", + ctx.signer, + ) + val result = + BlossomClient().upload(encrypted.ciphertext, "application/octet-stream", store.serverRoot, auth) + if (result.sha256 != null && result.sha256 != ciphertextHash) { + return Output.error("hash_mismatch", "blossom returned ${result.sha256}, expected $ciphertextHash") + } + // The locator is the canonical BUD-01 URL for the ciphertext + // hash, not whatever the server echoed: the hash is what a + // receiver verifies, and a server-chosen URL could name + // something else entirely. + uploadedUrl = store.blossomFetchUrl(ciphertextHash) + } catch (e: Exception) { + return Output.error("upload_failed", "${e.message}") + } + + val reference = + EncryptedMediaReferenceV2( + locators = listOf(MediaLocatorV2(EncryptedMediaPolicyV2.INITIAL_LOCATOR_KIND, uploadedUrl)), + ciphertextSha256 = encrypted.ciphertextSha256, + plaintextSha256 = encrypted.plaintextSha256, + nonce = encrypted.nonce, + mediaType = mediaType, + filename = file.name, + ) + + val bundle = ctx.marmot.buildMediaMessage(resolved, reference, caption) + val targets = ctx.marmotGroupRelays(resolved).ifEmpty { ctx.outboxRelays() } + val ack = ctx.publish(bundle.outbound.signedEvent, targets) + RawEventSupport.publishGuard(ack, bundle.outbound.signedEvent.id)?.let { return it } + + Output.emit( + mapOf( + "group_id" to resolved, + "inner_event_id" to bundle.innerEvent.id, + "outer_event_id" to bundle.outbound.signedEvent.id, + "locator" to uploadedUrl, + "ciphertext_sha256" to ciphertextHash, + "plaintext_sha256" to encrypted.plaintextSha256.toHexKey(), + "m" to mediaType, + "filename" to file.name, + ) + RawEventSupport.ackFields(ack), + ) + return 0 + } + } + + private suspend fun get( + dataDir: DataDir, + rest: Array, + ): Int { + val args = Args(rest) + val gid = args.positional(0, "gid") + val eventId = args.positional(1, "event-id") + val out = args.flag("out") ?: return Output.error("bad_args", "media get --out PATH") + args.rejectUnknown() + + Context.open(dataDir).use { ctx -> + ctx.prepare() + val resolved = ctx.resolveGroupId(gid) + ctx.syncIncoming() + if (!ctx.marmot.isMember(resolved)) return Output.error("not_member", "not a member of group $resolved") + + val message = + ctx.marmot + .loadStoredMessages(resolved) + .mapNotNull { Event.fromJsonOrNull(it) } + .firstOrNull { it.id == eventId } + ?: return Output.error("not_found", "no stored message $eventId in group $resolved") + + val reference = + message.tags + .firstOrNull { it.isNotEmpty() && it[0] == "imeta" } + ?.let { + try { + EncryptedMediaV2.parseImetaTag(it) + } catch (e: IllegalArgumentException) { + return Output.error("bad_reference", e.message ?: "invalid imeta tag") + } + } + ?: return Output.error("no_media", "message $eventId carries no encrypted-media reference") + + val locator = + reference.locators.firstOrNull { it.kind == EncryptedMediaPolicyV2.INITIAL_LOCATOR_KIND } + ?: return Output.error("no_locator", "no blossom-v1 locator in message $eventId") + + val ciphertext = + try { + BlossomClient().download(locator.value) + } catch (e: Exception) { + return Output.error("download_failed", "${e.message}") + } ?: return Output.error("download_failed", "blob ${locator.value} not available") + + // The ciphertext hash is checked BEFORE decryption: it is what the + // locator names, so a server that served something else is caught + // here rather than as a confusing AEAD failure. + if (!sha256(ciphertext).contentEquals(reference.ciphertextSha256)) { + return Output.error("hash_mismatch", "the blob at ${locator.value} is not the one the message names") + } + + val plaintext = + try { + ctx.marmot.decryptMedia(resolved, reference, ciphertext) + } catch (e: Exception) { + // A failure here is not "the file is corrupt": the media + // secret is per-epoch, so an attachment from an older epoch + // simply does not open under the current one. + return Output.error("decrypt_failed", "${e.message}") + } + + File(out).writeBytes(plaintext) + Output.emit( + mapOf( + "group_id" to resolved, + "event_id" to eventId, + "locator" to locator.value, + "out" to out, + "bytes" to plaintext.size, + "m" to reference.mediaType, + "filename" to reference.filename, + ), + ) + return 0 + } + } + + /** Extension-based guess, only as a default for `--mime`. */ + private fun guessMediaType(name: String): String = + when (name.substringAfterLast('.', "").lowercase()) { + "jpg", "jpeg" -> "image/jpeg" + "png" -> "image/png" + "gif" -> "image/gif" + "webp" -> "image/webp" + "mp4" -> "video/mp4" + "webm" -> "video/webm" + "mp3" -> "audio/mpeg" + "pdf" -> "application/pdf" + "txt" -> "text/plain" + else -> "application/octet-stream" + } +} diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 48bb22589c..79ec80fd96 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -33,6 +33,9 @@ import com.vitorpamplona.quartz.marmot.WelcomeDelivery import com.vitorpamplona.quartz.marmot.WelcomeResult import com.vitorpamplona.quartz.marmot.appComponents.AdminPolicyV1 import com.vitorpamplona.quartz.marmot.appComponents.CurrentProfileGroupFactory +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaPolicyV2 +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaReferenceV2 +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaV2 import com.vitorpamplona.quartz.marmot.appComponents.GroupAvatarUrlV1 import com.vitorpamplona.quartz.marmot.appComponents.GroupBlossomImageV1 import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 @@ -1447,6 +1450,105 @@ class MarmotManager( }.event } + /** + * Set or replace the group's encrypted-media policy (`0x800b`). + * + * The state is a FULL replacement, including both ordered lists — and + * `default_blob_endpoints` order is the upload/fetch fallback priority, so + * a caller reordering it is changing where the group uploads, not + * reformatting it. + * + * Current profile only. The frozen v1 policy at `0x8008` is a different + * component and MUST NOT be reinterpreted as v2, so there is no legacy + * carrier to fall back to here. + */ + suspend fun setEncryptedMediaPolicy( + nostrGroupId: HexKey, + policy: EncryptedMediaPolicyV2, + relays: List = groupRelays(nostrGroupId), + ): OutboundGroupEvent { + val view = groupView(nostrGroupId) ?: throw IllegalStateException("Not a member of group $nostrGroupId") + check(view.isCurrentProfile) { + "Group $nostrGroupId is a legacy MIP-01 group and has no carrier for an encrypted-media policy" + } + val encoded = policy.encode() + return commitAndPublish(nostrGroupId, relays) { + groupManager.stageAppDataUpdate(nostrGroupId, EncryptedMediaPolicyV2.COMPONENT_ID, encoded) + }.event + } + + /** The group's media policy, or null when it carries none. */ + fun encryptedMediaPolicy(nostrGroupId: HexKey): EncryptedMediaPolicyV2? = groupState(nostrGroupId)?.encryptedMedia + + /** + * Encrypt an attachment under the group's media secret + * (`MLS-Exporter("marmot", "encrypted-media", 32)`). + * + * The secret is the CURRENT epoch's. `source_epoch` is deliberately not a + * field of the reference: it is the epoch of the application message that + * carries the tag, so a sender must publish the message in the same epoch + * it encrypted under — which is what publishing right after this does. + */ + fun encryptMedia( + nostrGroupId: HexKey, + plaintext: ByteArray, + mediaType: String, + filename: String, + ): EncryptedMediaV2.EncryptionResult = + EncryptedMediaV2.encrypt( + plaintext = plaintext, + mediaSecret = groupManager.mediaExporterSecret(nostrGroupId), + mediaType = mediaType, + filename = filename, + ) + + /** Decrypt an attachment a peer sent, verifying it is the file the reference names. */ + fun decryptMedia( + nostrGroupId: HexKey, + reference: EncryptedMediaReferenceV2, + ciphertext: ByteArray, + /** + * The epoch that delivered the carrying message, when the caller knows + * it. The media secret is per-epoch, so a message from an older epoch + * does not open under the current one. + */ + epochSecret: ByteArray? = null, + ): ByteArray = + EncryptedMediaV2.decrypt( + ciphertext = ciphertext, + mediaSecret = epochSecret ?: groupManager.mediaExporterSecret(nostrGroupId), + nonce = reference.nonce, + plaintextSha256 = reference.plaintextSha256, + mediaType = reference.mediaType, + filename = reference.filename, + ) + + /** + * Build the kind:9 that carries an `encrypted-media-v2` attachment. + * + * The reference rides in an `imeta` tag; [caption] is the message body a + * client without media support still reads. The locator URLs are the only + * thing in the tag a server ever sees, and they name ciphertext. + */ + suspend fun buildMediaMessage( + nostrGroupId: HexKey, + reference: EncryptedMediaReferenceV2, + caption: String = "", + persistOwn: Boolean = true, + ): TextMessageBundle { + val template = + com.vitorpamplona.quartz.nip01Core.signers + .eventTemplate(kind = 9, description = caption) { + addUnique(reference.toImetaTag()) + } + val innerEvent = + com.vitorpamplona.quartz.nip59Giftwrap.rumors.RumorAssembler + .assembleRumor(signer.pubKey, template) + val outbound = buildGroupMessage(nostrGroupId, innerEvent) + if (persistOwn) persistDecryptedMessage(nostrGroupId, innerEvent.toJson()) + return TextMessageBundle(outbound = outbound, innerEvent = innerEvent) + } + // --- KeyPackage Management --- /** diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt index 6f8ec036ef..25263a5c0c 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt @@ -64,19 +64,17 @@ object CurrentProfileGroupFactory { * later as a group we cannot actually participate in. Add an id here only * when the component is implemented. * - * `0x8006` (agent-text-stream over QUIC) is listed for the RECEIVE role - * only, which is what [MlsGroup.currentProfileLeafCapabilities] advertises: - * we decode the group's policy, derive the per-stream record keys, open - * records and fold the transcript. We do not advertise the `send` - * (`0xF2D2`) or `fanout` (`0xF2D4`) capabilities, because publishing needs - * durable per-stream sequence state to avoid reusing an AEAD nonce across - * a restart, and we have none. + * `0x8006` (agent-text-stream over QUIC) is listed for every role + * [MlsGroup.currentProfileLeafCapabilities] advertises — receive, send and + * fanout. Publishing needs durable per-stream sequence state so a restart + * cannot reuse an AEAD nonce, and that store exists. */ val SUPPORTED_COMPONENTS: List = listOf( ComponentsList.APP_COMPONENTS_ID, AppComponentIds.GROUP_PROFILE_V1, AppComponentIds.GROUP_BLOSSOM_IMAGE_V1, + AppComponentIds.GROUP_AVATAR_URL_V1, AppComponentIds.ADMIN_POLICY_V1, AppComponentIds.NOSTR_ROUTING_V1, AppComponentIds.MESSAGE_RETENTION_V1, @@ -176,6 +174,19 @@ object CurrentProfileGroupFactory { profile: GroupProfileV1? = null, additionalAdmins: List = emptyList(), retention: MessageRetentionV1? = null, + /** + * The media policy (`0x800b`), off by default. + * + * The component is "required for new app groups under a media-capable + * application profile", but that is application-profile policy rather + * than something epoch 0 has to carry — and the reference + * implementation's own epoch-0 GroupContext does not carry it. Putting + * it there unasked would make our group context differ from the + * reference's for the same inputs AND would require every joiner to + * advertise `0x800b` before it could be added. A group that wants a + * media policy commits one, which is also how it gets changed later. + */ + encryptedMedia: EncryptedMediaPolicyV2? = null, agentTextStream: AgentTextStreamQuicPolicyV1? = null, ciphersuite: MlsCiphersuite = MlsCiphersuite.DEFAULT, ): MlsGroup { @@ -188,6 +199,7 @@ object CurrentProfileGroupFactory { routing = NostrRoutingV1.of(nostrGroupId, relays), profile = profile, retention = retention, + encryptedMedia = encryptedMedia, lifecycle = GroupLifecycleV1.ACTIVE, agentTextStream = agentTextStream, ) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaPolicyV2.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaPolicyV2.kt index c0f376d067..8b5cb8d6a6 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaPolicyV2.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaPolicyV2.kt @@ -193,38 +193,36 @@ data class EncryptedMediaPolicyV2( /** * A base URL is normalized when it is byte-equal to its own - * parse-and-serialize output. + * parse-and-serialize output — the same WHATWG normalization + * `group-avatar-url-v1` defines, which is why it runs through the same + * serializer rather than a second hand-rolled approximation of it. Two + * approximations of one rule is how two components end up disagreeing + * about the same URL. * - * The checks below are the structural subset that decides validity for - * every member identically: scheme, no userinfo, a present host, and no - * query or fragment. Reachability and whether this client is willing to - * contact the host are LOCAL policy and must not influence whether the - * component bytes — or the Commit carrying them — are valid; otherwise - * one member's blocklist would fork the group. + * `http` is permitted here and not for avatars: the media policy says + * so explicitly, and a self-hosted blob store on a private network is + * a real deployment. + * + * A query or fragment is refused outright rather than serialized away. + * The serializer would happily keep a query, but the component says an + * endpoint carrying one is invalid, and dropping it would change where + * the group uploads. + * + * Reachability and whether this client is willing to contact the host + * are LOCAL policy and must not influence whether the component bytes — + * or the Commit carrying them — are valid; otherwise one member's + * blocklist would fork the group. */ fun requireNormalizedBaseUrl(url: String) { val bytes = url.encodeToByteArray() require(bytes.isNotEmpty() && bytes.size <= MAX_BASE_URL_BYTES) { "base_url must be 1..$MAX_BASE_URL_BYTES bytes, was ${bytes.size}" } - val scheme = - when { - url.startsWith("https://") -> "https://" - url.startsWith("http://") -> "http://" - else -> throw IllegalArgumentException("base_url must be http or https: '$url'") - } require('#' !in url) { "base_url must not carry a fragment: '$url'" } require('?' !in url) { "base_url must not carry a query: '$url'" } - - val afterScheme = url.substring(scheme.length) - val authority = afterScheme.substringBefore('/') - require(authority.isNotEmpty()) { "base_url has no host: '$url'" } - require('@' !in authority) { "base_url must not carry userinfo: '$url'" } - require(authority == authority.lowercase()) { - "base_url host is not normalized (lowercase): '$url'" + require(MarmotWebUrl.normalize(url, allowHttp = true, label = "base_url") == url) { + "base_url is not normalized: '$url'" } - require("//" !in afterScheme) { "base_url path is not normalized: '$url'" } - require(".." !in afterScheme) { "base_url path is not normalized: '$url'" } } } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Cipher.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Cipher.kt new file mode 100644 index 0000000000..64894ae98a --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Cipher.kt @@ -0,0 +1,82 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.appComponents + +import com.vitorpamplona.quartz.utils.ciphers.NostrCipher + +/** + * `encrypted-media-v2` as a [NostrCipher], so the existing upload pipeline can + * encrypt with it without knowing anything about Marmot. + * + * The pipeline compresses and strips metadata before handing bytes over, and + * that matters here: v2 derives its key from the hash of the bytes it actually + * encrypts, so the hash has to be taken at this point in the chain and not from + * the file the user picked. [plaintextSha256] and [ciphertextSha256] are + * therefore populated by [encrypt] and read afterwards to build the reference. + * + * A single-use object. The nonce is fresh per [encrypt] call, which is required + * — the key is deterministic in (plaintext hash, media type, filename, epoch), + * so re-encrypting the same file in the same epoch under a repeated nonce would + * break ChaCha20-Poly1305 outright — but it also means the fields below always + * describe the LAST call. + */ +class EncryptedMediaV2Cipher( + private val mediaSecret: ByteArray, + /** Canonical media type — the `m` field, byte-for-byte. */ + val mediaType: String, + val filename: String, +) : NostrCipher { + var nonce: ByteArray = ByteArray(0) + private set + + var plaintextSha256: ByteArray = ByteArray(0) + private set + + var ciphertextSha256: ByteArray = ByteArray(0) + private set + + override fun name(): String = EncryptedMediaV2.VERSION + + override fun encrypt(bytesToEncrypt: ByteArray): ByteArray { + val result = EncryptedMediaV2.encrypt(bytesToEncrypt, mediaSecret, mediaType, filename) + nonce = result.nonce + plaintextSha256 = result.plaintextSha256 + ciphertextSha256 = result.ciphertextSha256 + return result.ciphertext + } + + override fun decrypt(bytesToDecrypt: ByteArray): ByteArray = + EncryptedMediaV2.decrypt( + ciphertext = bytesToDecrypt, + mediaSecret = mediaSecret, + nonce = nonce, + plaintextSha256 = plaintextSha256, + mediaType = mediaType, + filename = filename, + ) + + override fun decryptOrNull(bytesToDecrypt: ByteArray): ByteArray? = + try { + decrypt(bytesToDecrypt) + } catch (_: Exception) { + null + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1.kt index 3d90ce510d..5466ae18c3 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1.kt @@ -88,7 +88,7 @@ data class GroupAvatarUrlV1( // Normalizing at encode is the producer's job: the stored bytes ARE the // serialized form, and every decoder re-derives them to check. - val stored = if (isAbsent) "" else MarmotHttpsUrl.normalize(url) + val stored = if (isAbsent) "" else MarmotWebUrl.normalize(url, label = "avatar URL") val writer = TlsWriter() writer.putOpaqueVarInt(stored.encodeToByteArray()) @@ -112,7 +112,7 @@ data class GroupAvatarUrlV1( companion object { const val COMPONENT_ID = AppComponentIds.GROUP_AVATAR_URL_V1 - const val URL_MAX_BYTES = MarmotHttpsUrl.MAX_BYTES + const val URL_MAX_BYTES = MarmotWebUrl.MAX_BYTES const val HINT_MAX_BYTES = 256 /** The cleared avatar: every field empty. */ @@ -139,7 +139,7 @@ data class GroupAvatarUrlV1( // differ from the serializer's output." A decoder never repairs a // non-normalized URL into canonical state — two members would then // hold different bytes for the same group. - require(MarmotHttpsUrl.normalize(text) == text) { "group avatar URL is not normalized" } + require(MarmotWebUrl.normalize(text, label = "avatar URL") == text) { "group avatar URL is not normalized" } } return GroupAvatarUrlV1(text, dim, thumbhash) } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt index 6a5081da53..9bf7ccd3ea 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotGroupState.kt @@ -58,6 +58,13 @@ data class MarmotGroupState( val image: GroupBlossomImageV1?, val avatarUrl: GroupAvatarUrlV1?, val retention: MessageRetentionV1?, + /** + * The group's media policy (`0x800b`). Null means the group has none, and + * a current-profile sender then has nowhere it is told to upload — it is + * not a licence to fall back to the frozen v1 policy at `0x8008`, which + * MUST NOT be reinterpreted as v2. + */ + val encryptedMedia: EncryptedMediaPolicyV2?, val lifecycle: GroupLifecycleV1?, val agentTextStream: AgentTextStreamQuicPolicyV1?, ) { @@ -116,6 +123,10 @@ data class MarmotGroupState( image = dictionary[GroupBlossomImageV1.COMPONENT_ID]?.let { GroupBlossomImageV1.decode(it) }, avatarUrl = dictionary[GroupAvatarUrlV1.COMPONENT_ID]?.let { GroupAvatarUrlV1.decode(it) }, retention = dictionary[MessageRetentionV1.COMPONENT_ID]?.let { MessageRetentionV1.decode(it) }, + encryptedMedia = + dictionary[EncryptedMediaPolicyV2.COMPONENT_ID]?.let { + EncryptedMediaPolicyV2.decode(it) + }, lifecycle = dictionary[GroupLifecycleV1.COMPONENT_ID]?.let { GroupLifecycleV1.decode(it) }, agentTextStream = dictionary[AgentTextStreamQuicPolicyV1.COMPONENT_ID]?.let { @@ -139,6 +150,7 @@ data class MarmotGroupState( image: GroupBlossomImageV1? = null, avatarUrl: GroupAvatarUrlV1? = null, retention: MessageRetentionV1? = null, + encryptedMedia: EncryptedMediaPolicyV2? = null, lifecycle: GroupLifecycleV1? = GroupLifecycleV1.ACTIVE, agentTextStream: AgentTextStreamQuicPolicyV1? = null, extraRequiredComponents: Collection = emptyList(), @@ -169,6 +181,10 @@ data class MarmotGroupState( required.add(MessageRetentionV1.COMPONENT_ID) dictionary = dictionary.with(MessageRetentionV1.COMPONENT_ID, it.encode()) } + encryptedMedia?.let { + required.add(EncryptedMediaPolicyV2.COMPONENT_ID) + dictionary = dictionary.with(EncryptedMediaPolicyV2.COMPONENT_ID, it.encode()) + } lifecycle?.let { required.add(GroupLifecycleV1.COMPONENT_ID) dictionary = dictionary.with(GroupLifecycleV1.COMPONENT_ID, it.encode()) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotHttpsUrl.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotWebUrl.kt similarity index 80% rename from quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotHttpsUrl.kt rename to quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotWebUrl.kt index cc6cab0053..82d8f3d9f1 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotHttpsUrl.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotWebUrl.kt @@ -21,18 +21,20 @@ package com.vitorpamplona.quartz.marmot.appComponents /** - * The `https`-only WHATWG URL normalizer Marmot group state needs. + * The WHATWG URL normalizer Marmot group state needs. * * This exists because normalization is part of the wire format, not a * convenience: `marmot.group.avatar-url.v1` stores the serialized form, and a * decoder "MUST reject state whose stored URL bytes differ from the - * serializer's output". So this has to agree with every other implementation - * byte for byte — too lax and we accept state a peer rejects, too strict and we - * reject a group somebody else made. + * serializer's output". `marmot.group.encrypted-media.v2` says the same about + * its blob-store base URLs, and names this same normalization. So this has to + * agree with every other implementation byte for byte — too lax and we accept + * state a peer rejects, too strict and we reject a group somebody else made. * - * It is not a general URL library. It handles exactly the shape the component - * allows — `https`, a host, no userinfo, no fragment — and refuses everything - * else rather than guessing. + * It is not a general URL library. It handles exactly the shapes the components + * allow — an `https` (or, where the component permits it, `http`) URL with a + * host, no userinfo and no fragment — and refuses everything else rather than + * guessing. * * **Known limit: no IDNA.** A host with non-ASCII characters is refused instead * of punycoded. That costs nothing on the decode side, where it matters: a @@ -41,11 +43,11 @@ package com.vitorpamplona.quartz.marmot.appComponents * and must be rejected anyway. It only stops us from *accepting* a * Unicode-typed host from our own user, who can paste the punycode form. */ -object MarmotHttpsUrl { +object MarmotWebUrl { const val MAX_BYTES = 2048 - private const val SCHEME = "https://" - private const val DEFAULT_PORT = "443" + private const val HTTPS_DEFAULT_PORT = "443" + private const val HTTP_DEFAULT_PORT = "80" /** * Parse [raw] and return its WHATWG serialization. @@ -53,50 +55,67 @@ object MarmotHttpsUrl { * @throws IllegalArgumentException when the URL is not a valid group-avatar * URL, or when normalizing it would need something this does not do. */ - fun normalize(raw: String): String { - require(raw.isNotEmpty()) { "avatar URL must not be empty" } - require(raw.encodeToByteArray().size <= MAX_BYTES) { "avatar URL exceeds $MAX_BYTES bytes" } + fun normalize( + raw: String, + /** + * Whether plain `http` is acceptable. Off by default because the + * avatar component is https-only; the media policy permits both, and + * that is a per-component rule rather than a global one. + */ + allowHttp: Boolean = false, + /** What to call this URL in an error, e.g. "avatar URL". */ + label: String = "URL", + ): String { + require(raw.isNotEmpty()) { "$label must not be empty" } + require(raw.encodeToByteArray().size <= MAX_BYTES) { "$label exceeds $MAX_BYTES bytes" } val schemeEnd = raw.indexOf("://") - require(schemeEnd > 0) { "avatar URL must be an absolute https URL" } - require(raw.substring(0, schemeEnd).lowercase() == "https") { "avatar URL scheme must be https" } + require(schemeEnd > 0) { "$label must be an absolute URL" } + val scheme = raw.substring(0, schemeEnd).lowercase() + require(scheme == "https" || (allowHttp && scheme == "http")) { + if (allowHttp) "$label scheme must be http or https" else "$label scheme must be https" + } + val defaultPort = if (scheme == "http") HTTP_DEFAULT_PORT else HTTPS_DEFAULT_PORT var rest = raw.substring(schemeEnd + 3) - require(!rest.contains('#')) { "avatar URL must not include a fragment" } + require(!rest.contains('#')) { "$label must not include a fragment" } // The authority runs to the first "/" or "?" — everything after is path // and query. val authorityEnd = rest.indexOfFirst { it == '/' || it == '?' }.let { if (it < 0) rest.length else it } val authority = rest.substring(0, authorityEnd) rest = rest.substring(authorityEnd) - require(!authority.contains('@')) { "avatar URL must not include credentials" } - require(authority.isNotEmpty()) { "avatar URL must include a host" } + require(!authority.contains('@')) { "$label must not include credentials" } + require(authority.isNotEmpty()) { "$label must include a host" } val (host, port) = splitHostPort(authority) - require(host.isNotEmpty()) { "avatar URL must include a host" } + require(host.isNotEmpty()) { "$label must include a host" } require(host.all { it.code < 0x80 }) { - "avatar URL host must be ASCII — encode an international host as punycode first" + "$label host must be ASCII — encode an international host as punycode first" } val queryStart = rest.indexOf('?') val rawPath = if (queryStart < 0) rest else rest.substring(0, queryStart) val rawQuery = if (queryStart < 0) null else rest.substring(queryStart + 1) - val out = StringBuilder(SCHEME) + val out = StringBuilder(scheme).append("://") out.append(host.lowercase()) - if (port != null && port != DEFAULT_PORT) out.append(':').append(port) + if (port != null && port != defaultPort) out.append(':').append(port) out.append(normalizePath(rawPath)) if (rawQuery != null) out.append('?').append(percentEncode(rawQuery, QUERY_KEEP)) val normalized = out.toString() - require(normalized.encodeToByteArray().size <= MAX_BYTES) { "avatar URL exceeds $MAX_BYTES bytes" } + require(normalized.encodeToByteArray().size <= MAX_BYTES) { "$label exceeds $MAX_BYTES bytes" } return normalized } /** True when [normalize] accepts [raw] and returns it unchanged. */ - fun isNormalized(raw: String): Boolean = + fun isNormalized( + raw: String, + allowHttp: Boolean = false, + ): Boolean = try { - normalize(raw) == raw + normalize(raw, allowHttp) == raw } catch (_: IllegalArgumentException) { false } @@ -115,7 +134,7 @@ object MarmotHttpsUrl { fun isSafeToContact(raw: String): Boolean { val host = try { - hostOf(normalize(raw)) + hostOf(normalize(raw, allowHttp = true)) } catch (_: IllegalArgumentException) { return false } @@ -127,7 +146,7 @@ object MarmotHttpsUrl { } private fun hostOf(normalized: String): String { - val rest = normalized.substring(SCHEME.length) + val rest = normalized.substringAfter("://") val end = rest.indexOfFirst { it == '/' || it == '?' }.let { if (it < 0) rest.length else it } return splitHostPort(rest.substring(0, end)).first } diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Test.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Test.kt index 2cf77ffe71..17acac7379 100644 --- a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Test.kt +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Test.kt @@ -105,7 +105,6 @@ class EncryptedMediaV2Test { "https://a.example.com/?q=1", "https://a.example.com/#f", "https://A.EXAMPLE.COM/", - "https://a.example.com//double/", "https://a.example.com/../up/", "https:///", ).forEach { url -> @@ -115,6 +114,39 @@ class EncryptedMediaV2Test { } } + @Test + fun acceptsBaseUrlsTheWhatwgSerializerLeavesAlone() { + // An empty path segment is NOT collapsed by the WHATWG serializer — the + // path is a segment list, and only "." and ".." are special. Rejecting + // a doubled slash therefore refuses group state the reference + // implementation produces and accepts, which is the exact failure mode + // this component's normalization rule exists to prevent. + // + // `http` is likewise valid here and not for avatars: the media policy + // permits it, and a self-hosted blob store on a private network is a + // real deployment. + listOf( + "https://a.example.com//double/", + "http://blobs.internal/", + "https://a.example.com:8443/blobs/", + ).forEach { url -> + EncryptedMediaPolicyV2(listOf("blossom-v1"), listOf(BlobStoreEndpointV2("blossom-v1", url))) + } + } + + @Test + fun dropsNothingButRefusesToRepair() { + // The default port is absent from a normalized URL, so a stored value + // carrying it is non-normalized and refused rather than trimmed. A + // decoder that repaired it would hold different bytes than the peer + // that stored them. + listOf("https://a.example.com:443/", "http://a.example.com:80/").forEach { url -> + assertFailsWith("expected '$url' to be rejected") { + EncryptedMediaPolicyV2(listOf("blossom-v1"), listOf(BlobStoreEndpointV2("blossom-v1", url))) + } + } + } + @Test fun rejectsInvalidLocatorKinds() { listOf("", "Blossom-v1", "blossom_v1", "blossom v1", "a".repeat(65)).forEach { kind -> diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt index 993105d109..90708fde61 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt @@ -73,7 +73,7 @@ class GroupAvatarUrlV1Test { ) for ((raw, expected) in vectors) { - assertEquals("normalizing $raw", expected, MarmotHttpsUrl.normalize(raw)) + assertEquals("normalizing $raw", expected, MarmotWebUrl.normalize(raw)) } } @@ -86,8 +86,8 @@ class GroupAvatarUrlV1Test { "https://cdn.example.com/%7euser/a b.png", "https://[2001:DB8::1]:8443/", )) { - val once = MarmotHttpsUrl.normalize(raw) - assertEquals(once, MarmotHttpsUrl.normalize(once)) + val once = MarmotWebUrl.normalize(raw) + assertEquals(once, MarmotWebUrl.normalize(once)) } } @@ -106,7 +106,7 @@ class GroupAvatarUrlV1Test { "", )) { assertThrows("must reject $bad", IllegalArgumentException::class.java) { - MarmotHttpsUrl.normalize(bad) + MarmotWebUrl.normalize(bad) } } } @@ -122,14 +122,14 @@ class GroupAvatarUrlV1Test { "https://10.0.0.1/avatar.png", "https://[::1]/avatar.png", )) { - MarmotHttpsUrl.normalize(raw) + MarmotWebUrl.normalize(raw) } - assertTrue(MarmotHttpsUrl.isSafeToContact("https://cdn.example.com/a.png")) - assertTrue(!MarmotHttpsUrl.isSafeToContact("https://localhost/a.png")) - assertTrue(!MarmotHttpsUrl.isSafeToContact("https://127.0.0.1/a.png")) - assertTrue(!MarmotHttpsUrl.isSafeToContact("https://10.0.0.1/a.png")) - assertTrue(!MarmotHttpsUrl.isSafeToContact("https://192.168.1.1/a.png")) - assertTrue(!MarmotHttpsUrl.isSafeToContact("https://[::1]/a.png")) + assertTrue(MarmotWebUrl.isSafeToContact("https://cdn.example.com/a.png")) + assertTrue(!MarmotWebUrl.isSafeToContact("https://localhost/a.png")) + assertTrue(!MarmotWebUrl.isSafeToContact("https://127.0.0.1/a.png")) + assertTrue(!MarmotWebUrl.isSafeToContact("https://10.0.0.1/a.png")) + assertTrue(!MarmotWebUrl.isSafeToContact("https://192.168.1.1/a.png")) + assertTrue(!MarmotWebUrl.isSafeToContact("https://[::1]/a.png")) } @Test @@ -140,7 +140,7 @@ class GroupAvatarUrlV1Test { // punycode and a raw Unicode host is non-normalized anyway. val failure = assertThrows(IllegalArgumentException::class.java) { - MarmotHttpsUrl.normalize("https://bücher.example/a.png") + MarmotWebUrl.normalize("https://bücher.example/a.png") } assertTrue(failure.message.orEmpty().contains("punycode")) } @@ -197,7 +197,7 @@ class GroupAvatarUrlV1Test { @Test fun theBoundsAreEnforcedOnBothFields() { val longPath = "https://cdn.example.com/" + "a".repeat(2100) - assertThrows(IllegalArgumentException::class.java) { MarmotHttpsUrl.normalize(longPath) } + assertThrows(IllegalArgumentException::class.java) { MarmotWebUrl.normalize(longPath) } assertThrows(IllegalArgumentException::class.java) { GroupAvatarUrlV1(url = "https://cdn.example.com/a.png", dim = ByteArray(257)).encode() } From 9e41858c8f2cfb81658b9657c069380bb1245cbb Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 17:05:13 +0000 Subject: [PATCH 37/79] test(marmot): interop coverage for avatars, edits, deletions and media MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Six new harness tests against MDK, all green in one clean run: 20 avatar-url amy->wn 21 avatar-url wn->amy 22 edit amy->wn 23 deletion amy->wn 24 media-v2 amy->wn 25 media-v2 wn->amy The media pair needed a blob store, so the harness now runs a loopback Blossom server of its own (`blossom-server.py`, PUT /upload + GET /). It holds nothing but ciphertext — the file key comes from each group's MLS exporter — so a download that hashes back to the original bytes is proof both implementations derived the same key. That is the whole point of tests 24 and 25, and they pass in both directions. Test 20 sends a URL that is deliberately NOT normalized (`https://Example.COM:443/a/./avatars/../pic.png`) and asserts both what we store and what wn reads back. Normalization is the wire format for this component — a decoder rejects bytes that differ from its own serialization — so a disagreement here is a group the other side cannot read at all, not a cosmetic difference. Tests 22 and 23 assert what the protocol actually says rather than what a renderer happens to do. For the edit that means a well-formed kind:1009 reaching wn (one `e` tag naming the target, the replacement as its body, the right author) plus our own reader applying the overlay — MDK's storage deliberately leaves the original row's body alone and lets the client compute the chain, so asserting on painted text would be testing its TUI. For the deletion it means the `deleted` flag on wn's materialized timeline, which is its user-visible truth. Two harness bugs surfaced while getting there, both of the kind that make a failure unreadable rather than wrong. `run.env` — where tests hand each other group ids — survived the per-run state wipe, so a `--tests` subset that consumed without re-creating failed on "not a member" for a group id from a previous run. And `amy_json` read `$?` inside `if ! cmd`, where it is the status of the negation, so every failure reported "exit 0". Push (kind 451) has no cross-implementation test here and cannot: the owner proof is an UNPUBLISHED event handed to a push service, the reference CLI exposes no command that emits one, and the harness runs no push service. There is nothing for two implementations to disagree about on the wire. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- cli/tests/headless/helpers.sh | 10 +- cli/tests/marmot/blossom-server.py | 109 +++++++ cli/tests/marmot/marmot-interop-headless.sh | 28 +- cli/tests/marmot/setup.sh | 36 ++ cli/tests/marmot/tests-media.sh | 344 ++++++++++++++++++++ 5 files changed, 523 insertions(+), 4 deletions(-) create mode 100755 cli/tests/marmot/blossom-server.py create mode 100644 cli/tests/marmot/tests-media.sh diff --git a/cli/tests/headless/helpers.sh b/cli/tests/headless/helpers.sh index e6f6384f98..e01069bb3f 100644 --- a/cli/tests/headless/helpers.sh +++ b/cli/tests/headless/helpers.sh @@ -18,9 +18,13 @@ amy_a() { HOME="$STATE_DIR" "$AMY_BIN" --account A --secret-backend plaintext -- # Run amy, log stderr, surface JSON on stdout, remember last result. amy_json() { - local out - if ! out=$(amy_a "$@" 2>>"$LOG_FILE"); then - fail_msg "amy $*: exit $? (see $LOG_FILE)" + local out rc + # Capture the status separately: inside `if ! cmd; then`, `$?` is the status + # of the negation (always 0), so the message reported "exit 0" for every + # failure and told a reader nothing about what went wrong. + out=$(amy_a "$@" 2>>"$LOG_FILE"); rc=$? + if [[ $rc -ne 0 ]]; then + fail_msg "amy $*: exit $rc (see $LOG_FILE)" printf '%s\n' "$out" >>"$LOG_FILE" return 1 fi diff --git a/cli/tests/marmot/blossom-server.py b/cli/tests/marmot/blossom-server.py new file mode 100755 index 0000000000..73a93d7e5e --- /dev/null +++ b/cli/tests/marmot/blossom-server.py @@ -0,0 +1,109 @@ +#!/usr/bin/env python3 +"""A throwaway Blossom server for the Marmot interop harness. + +Enough of BUD-01/BUD-02 for both implementations to store and fetch an +encrypted attachment: `PUT /upload` stores the body under its SHA-256 and +returns the blob descriptor, `GET /` serves it back, `HEAD` answers +existence checks. + +Deliberately unauthenticated. Real Blossom servers verify a kind-24242 +authorization event; this one runs on loopback for the duration of a test run +and holds nothing but ciphertext the group already encrypted. Checking the +signature would test the harness, not the protocol. +""" + +import argparse +import hashlib +import json +import os +import time +from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer + + +class Handler(BaseHTTPRequestHandler): + blob_dir = "." + base_url = "" + + def _blob_path(self, sha): + return os.path.join(self.blob_dir, sha) + + def _sha_from_path(self): + # BUD-01 allows an optional extension: `/` or `/.bin`. + name = self.path.lstrip("/").split("?")[0] + sha = name.split(".")[0] + if len(sha) != 64 or any(c not in "0123456789abcdef" for c in sha.lower()): + return None + return sha.lower() + + def _send_json(self, code, payload): + body = json.dumps(payload).encode() + self.send_response(code) + self.send_header("Content-Type", "application/json") + self.send_header("Content-Length", str(len(body))) + self.end_headers() + self.wfile.write(body) + + def do_PUT(self): + if not self.path.startswith("/upload"): + self._send_json(404, {"message": "not found"}) + return + length = int(self.headers.get("Content-Length", "0")) + body = self.rfile.read(length) + sha = hashlib.sha256(body).hexdigest() + with open(self._blob_path(sha), "wb") as handle: + handle.write(body) + self._send_json( + 200, + { + "sha256": sha, + "size": len(body), + "type": self.headers.get("Content-Type", "application/octet-stream"), + "uploaded": int(time.time()), + "url": f"{self.base_url}/{sha}", + }, + ) + + def do_GET(self): + sha = self._sha_from_path() + if sha is None or not os.path.exists(self._blob_path(sha)): + self._send_json(404, {"message": "blob not found"}) + return + with open(self._blob_path(sha), "rb") as handle: + body = handle.read() + self.send_response(200) + self.send_header("Content-Type", "application/octet-stream") + self.send_header("Content-Length", str(len(body))) + self.end_headers() + self.wfile.write(body) + + def do_HEAD(self): + sha = self._sha_from_path() + exists = sha is not None and os.path.exists(self._blob_path(sha)) + self.send_response(200 if exists else 404) + self.send_header("Content-Type", "application/octet-stream") + self.end_headers() + + def log_message(self, fmt, *args): + # The harness captures stdout; one line per request is useful when a + # media test fails and useless otherwise. + print("blossom %s - %s" % (self.address_string(), fmt % args), flush=True) + + +def main(): + parser = argparse.ArgumentParser() + parser.add_argument("--host", default="127.0.0.1") + parser.add_argument("--port", type=int, default=8081) + parser.add_argument("--dir", required=True) + args = parser.parse_args() + + os.makedirs(args.dir, exist_ok=True) + Handler.blob_dir = args.dir + Handler.base_url = f"http://{args.host}:{args.port}" + + server = ThreadingHTTPServer((args.host, args.port), Handler) + print(json.dumps({"ready": True, "base_url": Handler.base_url}), flush=True) + server.serve_forever() + + +if __name__ == "__main__": + main() diff --git a/cli/tests/marmot/marmot-interop-headless.sh b/cli/tests/marmot/marmot-interop-headless.sh index eadd5f00c9..b754ec64b0 100755 --- a/cli/tests/marmot/marmot-interop-headless.sh +++ b/cli/tests/marmot/marmot-interop-headless.sh @@ -62,6 +62,13 @@ BROKER_PORT="${BROKER_PORT:-4455}" BROKER_URI="quic://$BROKER_HOST:$BROKER_PORT" BROKER_PID="" +# A loopback Blossom blob store for the encrypted-media tests. Ciphertext only: +# the file key comes from each group's MLS exporter and never reaches it. +BLOSSOM_HOST="${BLOSSOM_HOST:-127.0.0.1}" +BLOSSOM_PORT="${BLOSSOM_PORT:-8456}" +BLOSSOM_URL="http://$BLOSSOM_HOST:$BLOSSOM_PORT" +BLOSSOM_PID="" + NO_BUILD=0 # Every run starts from empty stores. wnd already wipes B's and C's data dirs # on each start, but A's amy home and the relay's SQLite file used to survive, @@ -82,6 +89,10 @@ ONLY_TESTS="" # address. Exported once here so `wn` and `wnd` both inherit it — `wn` runs the # same validation on any relay argument. export WN_ALLOW_LOOPBACK_RELAYS=1 +# Same shape for blob stores: wn refuses a loopback Blossom endpoint unless it +# is told this is a dev/test run. The harness's blob store is loopback by +# design — nothing in a test run may leave the machine. +export WN_ALLOW_LOOPBACK_BLOB_ENDPOINTS=1 A_NPUB="" A_HEX="" @@ -108,7 +119,12 @@ done if [[ $RESET_STATE -eq 1 && -d "$STATE_DIR" ]]; then # Keep the relay checkout + its build (minutes to rebuild) and the log and # results history; drop everything that holds protocol state. - rm -rf "$STATE_DIR/.amy" "$B_DIR" "$C_DIR" "$RELAY_DATA" + # + # run.env counts as protocol state: it is where tests hand each other group + # ids. Leaving it behind a wipe leaves ids naming groups nobody is in any + # more, and a later `--tests` subset that consumes without re-creating then + # fails on "not a member" for a group id from a previous run. + rm -rf "$STATE_DIR/.amy" "$B_DIR" "$C_DIR" "$RELAY_DATA" "$STATE_DIR/run.env" fi mkdir -p "$STATE_DIR" "$LOG_DIR" "$B_DIR/logs" "$C_DIR/logs" @@ -129,6 +145,8 @@ source "$SCRIPT_DIR/tests-create.sh" source "$SCRIPT_DIR/tests-manage.sh" # shellcheck source=tests-extras.sh source "$SCRIPT_DIR/tests-extras.sh" +# shellcheck source=tests-media.sh +source "$SCRIPT_DIR/tests-media.sh" # Make sure Ctrl+C / SIGTERM / SIGHUP all run the full cleanup path — # otherwise wnd is nohup'd and keeps running after the script dies, @@ -139,6 +157,7 @@ cleanup() { trap - EXIT INT TERM HUP stop_daemons stop_quic_broker + stop_blossom stop_local_relay print_summary exit "$rc" @@ -152,6 +171,7 @@ banner "Marmot headless interop harness ($RUN_TS)" preflight start_local_relay start_quic_broker || true +start_blossom || true start_daemon B "$B_DIR" "$B_SOCKET" start_daemon C "$C_DIR" "$C_SOCKET" ensure_identity_a @@ -179,6 +199,12 @@ ALL_TESTS=( test_16_wn_keypackage_rotation test_18_agent_stream_amy_publishes test_19_agent_stream_wn_publishes + test_20_avatar_url_amy_to_wn + test_21_avatar_url_wn_to_amy + test_22_message_edit_amy_to_wn + test_23_deletion_amy_to_wn + test_24_media_v2_amy_to_wn + test_25_media_v2_wn_to_amy ) # --tests runs a subset in the order given. Most tests read state a previous diff --git a/cli/tests/marmot/setup.sh b/cli/tests/marmot/setup.sh index 82fe0e3c1b..88aa4150f6 100644 --- a/cli/tests/marmot/setup.sh +++ b/cli/tests/marmot/setup.sh @@ -155,6 +155,42 @@ start_quic_broker() { return 1 } +# --- blossom blob store ------------------------------------------------------ +# A loopback Blossom server for the encrypted-media tests. Both implementations +# upload ciphertext to it and fetch each other's back; it never sees a key. +start_blossom() { + if ! command -v python3 >/dev/null 2>&1; then + info "python3 not found — encrypted-media tests will skip" + return 1 + fi + step "starting blossom blob store on $BLOSSOM_URL" + mkdir -p "$STATE_DIR/blossom/blobs" + nohup python3 "$SCRIPT_DIR/blossom-server.py" \ + --host "$BLOSSOM_HOST" --port "$BLOSSOM_PORT" --dir "$STATE_DIR/blossom/blobs" \ + >"$STATE_DIR/blossom/stdout.log" 2>"$STATE_DIR/blossom/stderr.log" & + BLOSSOM_PID=$! + local deadline=$(( $(date +%s) + 15 )) + while [[ $(date +%s) -lt $deadline ]]; do + if grep -q '"ready"' "$STATE_DIR/blossom/stdout.log" 2>/dev/null; then + info "blossom pid $BLOSSOM_PID ready" + return 0 + fi + if ! kill -0 "$BLOSSOM_PID" 2>/dev/null; then break; fi + sleep 1 + done + fail_msg "blossom never came up (see $STATE_DIR/blossom/stderr.log)" + tail -n 20 "$STATE_DIR/blossom/stderr.log" 2>/dev/null | sed 's/^/ /' >&2 || true + BLOSSOM_PID="" + return 1 +} + +stop_blossom() { + [[ -n "${BLOSSOM_PID:-}" ]] || return 0 + step "stopping blossom pid $BLOSSOM_PID" + kill "$BLOSSOM_PID" 2>/dev/null || true + BLOSSOM_PID="" +} + stop_quic_broker() { [[ -n "${BROKER_PID:-}" ]] || return 0 step "stopping broker pid $BROKER_PID" diff --git a/cli/tests/marmot/tests-media.sh b/cli/tests/marmot/tests-media.sh new file mode 100644 index 0000000000..33c5dc28d7 --- /dev/null +++ b/cli/tests/marmot/tests-media.sh @@ -0,0 +1,344 @@ +# shellcheck shell=bash +# +# tests-media.sh — tests 20-25. +# Focus: the avatar URL component, message edits, deletions, and +# encrypted-media v2 — each in both directions where the reference CLI can +# drive it. +# +# These all need A and B in one group with A as admin, so they share a group +# built once by the first test that needs it. + +# Create (or reuse) the group these tests run in: A creates it, so A is the +# admin who may commit component updates, and B joins. +# +# It is its own group rather than GROUP_02 because by this point in the run A +# has left GROUP_02 and been removed from others, and every check here needs +# both parties actually present. +media_group() { + local gid mls_gid + gid=$(load_state GROUP_MEDIA || true) + mls_gid=$(load_state GROUP_MEDIA_MLS || true) + if [[ -n "${gid:-}" && -n "${mls_gid:-}" ]]; then + printf '%s %s\n' "$gid" "$mls_gid" + return 0 + fi + + local out + out=$(amy_json marmot group create --name "Interop-Media") || return 1 + gid=$(printf '%s' "$out" | jq -r '.group_id') + mls_gid=$(printf '%s' "$out" | jq -r '.mls_group_id') + amy_json marmot group add "$gid" "$B_NPUB" >/dev/null || return 1 + + local b_gid + b_gid=$(wait_for_invite B 60) || return 1 + wn_b groups accept "$b_gid" >/dev/null 2>&1 || true + + save_state GROUP_MEDIA "$gid" + save_state GROUP_MEDIA_MLS "$mls_gid" + printf '%s %s\n' "$gid" "$mls_gid" +} + +# Poll wn's view of the group until [jq filter] matches, or time out. +wn_group_field_becomes() { + local mls_gid="$1" filter="$2" want="$3" timeout="${4:-90}" + local deadline=$(( $(date +%s) + timeout )) got + while [[ $(date +%s) -lt $deadline ]]; do + # wn wraps every --json payload in {"ok":…,"result":…}; try inside the + # envelope first and fall back to a bare payload so a future shape change + # does not silently make this poll always fail. + got=$(wn_b_json groups show "$mls_gid" 2>/dev/null \ + | jq -r "(.result | $filter) // ($filter) // empty" 2>/dev/null || true) + [[ "$got" == "$want" ]] && return 0 + wn_b sync >/dev/null 2>&1 || true + sleep 3 + done + printf 'wn_group_field_becomes: %s was %s, wanted %s\n' "$filter" "${got:-}" "$want" >>"$LOG_FILE" + return 1 +} + +test_20_avatar_url_amy_to_wn() { + banner "Test 20 — amy commits a URL avatar; wn reads it back" + local id="20 avatar-url amy->wn" + + local gid mls_gid + read -r gid mls_gid < <(media_group) || { record_result "$id" fail "could not build the media group"; return; } + if [[ -z "${gid:-}" ]]; then record_result "$id" fail "could not build the media group"; return; fi + + # The stored bytes are the NORMALIZED URL, so this deliberately passes a URL + # that is not: the default port and the dot-segment both have to disappear, + # and both sides have to agree on exactly what is left. A decoder rejects + # state whose bytes differ from its own serialization, so a mismatch here is + # a group wn cannot read at all rather than a cosmetic difference. + local raw="https://Example.COM:443/a/./avatars/../pic.png" + local want="https://example.com/a/pic.png" + + local out stored + out=$(amy_json marmot group set-avatar-url "$gid" "$raw" --dim "512x512") || { + record_result "$id" fail "amy set-avatar-url failed"; return + } + stored=$(printf '%s' "$out" | jq -r '.avatar_url // empty') + if [[ "$stored" != "$want" ]]; then + record_result "$id" fail "amy stored '$stored', expected the normalized '$want'"; return + fi + + if wn_group_field_becomes "$mls_gid" '.group.avatar_url.url // empty' "$want" 120; then + record_result "$id" pass + else + record_result "$id" fail "wn never saw the URL avatar" + fi +} + +test_21_avatar_url_wn_to_amy() { + banner "Test 21 — wn commits a URL avatar; amy reads it back" + local id="21 avatar-url wn->amy" + + local gid mls_gid + read -r gid mls_gid < <(media_group) || { record_result "$id" fail "could not build the media group"; return; } + if [[ -z "${gid:-}" ]]; then record_result "$id" fail "could not build the media group"; return; fi + + # B has to be an admin to commit a component update. + amy_json marmot group promote "$gid" "$B_NPUB" >/dev/null || { + record_result "$id" fail "amy could not promote B"; return + } + sleep 3 + wn_b sync >/dev/null 2>&1 || true + + local want="https://cdn.example.org/group.png" + if ! wn_b groups set-avatar-url "$mls_gid" --url "$want" >/dev/null 2>&1; then + record_result "$id" fail "wn set-avatar-url failed"; return + fi + + local deadline=$(( $(date +%s) + 120 )) got + while [[ $(date +%s) -lt $deadline ]]; do + got=$(amy_json marmot group show "$gid" 2>/dev/null | jq -r '.avatar_url // empty') + [[ "$got" == "$want" ]] && break + sleep 3 + done + if [[ "${got:-}" == "$want" ]]; then + record_result "$id" pass + else + record_result "$id" fail "amy saw '${got:-}', expected '$want'" + fi +} + +test_22_message_edit_amy_to_wn() { + banner "Test 22 — amy edits a message; wn receives the 1009 and amy overlays it" + local id="22 edit amy->wn" + + local gid mls_gid + read -r gid mls_gid < <(media_group) || { record_result "$id" fail "could not build the media group"; return; } + if [[ -z "${gid:-}" ]]; then record_result "$id" fail "could not build the media group"; return; fi + + local original="edit-target-frist-post" + local replacement="edit-target-first-post" + local send_json target + send_json=$(amy_json marmot message send "$gid" "$original") || { + record_result "$id" fail "amy send failed"; return + } + target=$(printf '%s' "$send_json" | jq -r '.inner_event_id') + if ! wait_for_message B "$mls_gid" "$original" 90; then + record_result "$id" fail "wn never received the original"; return + fi + + if ! amy_json marmot message edit "$gid" "$target" "$replacement" >/dev/null; then + record_result "$id" fail "amy message edit failed"; return + fi + + # What is checked on wn's side is that the EDIT EVENT interoperates: a + # kind:1009 carrying exactly one `e` tag naming the target, the replacement + # as its body, authored by A. Whether the reference CLI paints the overlay is + # its rendering choice — MDK's storage deliberately leaves the original row's + # body alone and lets the client compute the chain — so asserting on painted + # text would be testing its TUI, not the protocol. + local deadline=$(( $(date +%s) + 120 )) saw=0 + while [[ $(date +%s) -lt $deadline ]]; do + local payload + payload=$(wn_b_json messages list "$mls_gid" --limit 50 2>/dev/null || true) + if [[ -n "$payload" ]] && \ + printf '%s' "$payload" | jq_list messages \ + | jq -e --arg t "$target" --arg r "$replacement" --arg a "$A_HEX" \ + 'select(.kind == 1009) + | select((.plaintext // .content // "") == $r) + | select((.pubkey // .author // $a) == $a) + | select([(.tags // [])[] | select(.[0] == "e") | .[1]] == [$t])' \ + >/dev/null 2>&1; then + saw=1; break + fi + wn_b sync >/dev/null 2>&1 || true + sleep 3 + done + if [[ "$saw" -ne 1 ]]; then + record_result "$id" fail "wn never received a well-formed kind:1009 for the target"; return + fi + + # And our own reader must apply it: the target's body reads as the + # replacement and is flagged as edited, with no separate row for the edit. + local body edited + body=$(amy_json marmot message list "$gid" --limit 50 2>/dev/null \ + | jq_list messages | jq -r --arg t "$target" 'select(.event_id == $t) | .content' | head -n 1) + edited=$(amy_json marmot message list "$gid" --limit 50 2>/dev/null \ + | jq_list messages | jq -r --arg t "$target" 'select(.event_id == $t) | .edited' | head -n 1) + if [[ "$body" == "$replacement" && "$edited" == "true" ]]; then + record_result "$id" pass + else + record_result "$id" fail "amy shows '$body' (edited=$edited) for the edited message" + fi +} + +test_23_deletion_amy_to_wn() { + banner "Test 23 — amy deletes a message; wn marks it deleted" + local id="23 deletion amy->wn" + + local gid mls_gid + read -r gid mls_gid < <(media_group) || { record_result "$id" fail "could not build the media group"; return; } + if [[ -z "${gid:-}" ]]; then record_result "$id" fail "could not build the media group"; return; fi + + local doomed="delete-me-from-amethyst" + local send_json target + send_json=$(amy_json marmot message send "$gid" "$doomed") || { + record_result "$id" fail "amy send failed"; return + } + target=$(printf '%s' "$send_json" | jq -r '.inner_event_id') + if ! wait_for_message B "$mls_gid" "$doomed" 90; then + record_result "$id" fail "wn never received the message to delete"; return + fi + + if ! amy_json marmot message delete "$gid" "$target" >/dev/null; then + record_result "$id" fail "amy message delete failed"; return + fi + + # wn's materialized timeline carries a `deleted` flag per row — that is the + # user-visible truth, and it is what a kind:5 from another implementation has + # to be able to set. The raw event log keeps both events either way. + local deadline=$(( $(date +%s) + 120 )) gone=0 + while [[ $(date +%s) -lt $deadline ]]; do + local payload + payload=$(wn_b_json messages timeline list "$mls_gid" --limit 50 2>/dev/null || true) + if [[ -n "$payload" ]] && \ + printf '%s' "$payload" | jq_list messages \ + | jq -e --arg t "$target" \ + 'select((.message_id // .id // .event_id) == $t) | select(.deleted == true)' \ + >/dev/null 2>&1; then + gone=1; break + fi + wn_b sync >/dev/null 2>&1 || true + sleep 3 + done + + if [[ "$gone" -eq 1 ]]; then + record_result "$id" pass + else + record_result "$id" fail "wn never marked the message deleted" + fi +} + +# --- encrypted media v2 (0x800b) -------------------------------------------- +# Both directions upload ciphertext to the harness's loopback Blossom store and +# fetch the other side's back. The store never holds a key: the file key comes +# from each group's own MLS exporter, so a successful download that hashes back +# to the original bytes is proof both implementations derived the same one. + +media_policy_committed() { + local gid="$1" + if [[ -n "$(load_state MEDIA_POLICY_SET || true)" ]]; then return 0; fi + amy_json marmot media set-policy "$gid" "$BLOSSOM_URL/" >/dev/null || return 1 + save_state MEDIA_POLICY_SET 1 + sleep 3 + wn_b sync >/dev/null 2>&1 || true + return 0 +} + +test_24_media_v2_amy_to_wn() { + banner "Test 24 — amy sends an encrypted attachment; wn decrypts it" + local id="24 media-v2 amy->wn" + + if [[ -z "${BLOSSOM_PID:-}" ]]; then record_result "$id" skip "no blossom blob store"; return; fi + + local gid mls_gid + read -r gid mls_gid < <(media_group) || { record_result "$id" fail "could not build the media group"; return; } + if [[ -z "${gid:-}" ]]; then record_result "$id" fail "could not build the media group"; return; fi + + if ! media_policy_committed "$gid"; then + record_result "$id" fail "amy could not commit the media policy"; return + fi + + local src="$STATE_DIR/media-from-amy.bin" + head -c 4096 /dev/urandom >"$src" 2>/dev/null || printf 'attachment-bytes-from-amethyst' >"$src" + local want_hash + want_hash=$(sha256sum "$src" | cut -d' ' -f1) + + local send_json + send_json=$(amy_json marmot media send "$gid" "$src" --caption "from amethyst" --mime "application/octet-stream") || { + record_result "$id" fail "amy media send failed"; return + } + printf 'media24 send=%s\n' "$send_json" >>"$LOG_FILE" + + # wn recovers the plaintext by hash. Its `media download` takes the PLAINTEXT + # hash, which is what it also uses to key its own reference index — so + # finding it there at all already proves the imeta tag parsed. + local out="$STATE_DIR/media-to-wn.bin" + local deadline=$(( $(date +%s) + 150 )) ok=1 + while [[ $(date +%s) -lt $deadline ]]; do + if wn_b media download "$mls_gid" "$want_hash" --output "$out" >/dev/null 2>&1; then ok=0; break; fi + wn_b sync >/dev/null 2>&1 || true + sleep 5 + done + + if [[ "$ok" -ne 0 ]]; then + record_result "$id" fail "wn could not download the attachment"; return + fi + if [[ "$(sha256sum "$out" | cut -d' ' -f1)" == "$want_hash" ]]; then + record_result "$id" pass + else + record_result "$id" fail "wn decrypted different bytes than amy sent" + fi +} + +test_25_media_v2_wn_to_amy() { + banner "Test 25 — wn sends an encrypted attachment; amy decrypts it" + local id="25 media-v2 wn->amy" + + if [[ -z "${BLOSSOM_PID:-}" ]]; then record_result "$id" skip "no blossom blob store"; return; fi + + local gid mls_gid + read -r gid mls_gid < <(media_group) || { record_result "$id" fail "could not build the media group"; return; } + if [[ -z "${gid:-}" ]]; then record_result "$id" fail "could not build the media group"; return; fi + + if ! media_policy_committed "$gid"; then + record_result "$id" fail "amy could not commit the media policy"; return + fi + + local src="$STATE_DIR/media-from-wn.bin" + head -c 4096 /dev/urandom >"$src" 2>/dev/null || printf 'attachment-bytes-from-whitenoise' >"$src" + local want_hash + want_hash=$(sha256sum "$src" | cut -d' ' -f1) + + if ! wn_b media upload "$mls_gid" "$src" --send --message "from whitenoise" \ + --server "$BLOSSOM_URL/" >/dev/null 2>&1; then + record_result "$id" fail "wn media upload failed"; return + fi + + # Find the kind:9 wn just sent, by its caption, and pull the attachment out + # of its imeta tag. + local deadline=$(( $(date +%s) + 150 )) event_id="" + while [[ $(date +%s) -lt $deadline ]]; do + event_id=$(amy_json marmot message list "$gid" --limit 50 2>/dev/null \ + | jq_list messages \ + | jq -r 'select((.content // "") == "from whitenoise") | .event_id' | head -n 1) + [[ -n "$event_id" && "$event_id" != "null" ]] && break + sleep 5 + done + if [[ -z "$event_id" || "$event_id" == "null" ]]; then + record_result "$id" fail "amy never received wn's media message"; return + fi + + local out="$STATE_DIR/media-to-amy.bin" + if ! amy_json marmot media get "$gid" "$event_id" --out "$out" >/dev/null; then + record_result "$id" fail "amy media get failed"; return + fi + if [[ "$(sha256sum "$out" | cut -d' ' -f1)" == "$want_hash" ]]; then + record_result "$id" pass + else + record_result "$id" fail "amy decrypted different bytes than wn sent" + fi +} From 9e1120fc07eb1e2699edcb09ee3aabe7a6a16b6c Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 17:43:25 +0000 Subject: [PATCH 38/79] test(marmot): run the reference implementation's own fixtures MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Our Marmot tests agreed with nobody but themselves. They were written from the same reading of the spec as the code they test, so a parser that read a tag differently from every other client would pass all of them. MDK ships fixtures built for exactly this. `fixtures/encrypted-media/ imeta-v2.json` says so in its own description: "Shared by marmot-app, marmot-uniffi, and wn-cli tests so every layer agrees on validation verdicts and exact wire round-trips." We are another layer and were not using it. Same for the byte-level component vectors under `cgka-conformance-simulator/vectors/byte-fixtures/`, whose manifest marks 31 of its 41 artifacts `"status": "portable"`. Copied verbatim and wired to our codecs: - **10 imeta v2 cases** — 5 golden, 5 rejections. The rejections are the half that matters: a merely lenient parser passes every golden case and still cannot be interoperated with, because it accepts tags a conformant sender never emits and then renders media another client refuses. The fixture also distinguishes an absent hint from a present-but-empty one, which is a real wire distinction we now assert rather than assume. - **10 imeta v1 cases as NEGATIVE cases.** `0x8008` is frozen and "MUST NOT be reinterpreted as v2"; the two share enough field layout that a parser keying only on fields would read one as the other and derive a file key under the wrong scheme. Every v1 case now has to bounce off the v2 parser, including the ones v1 itself calls valid. - **3 nostr-routing byte fixtures.** These are the first tests we have that pin a component's wire bytes against another implementation instead of against our own encoder — a round trip proves we can read what we wrote, which is a different and much weaker claim. The invalid fixture is the sharp one: a decoder that deduplicated the relay list rather than refusing it would hold bytes no peer agrees with. All 8 tests pass unmodified, so this is coverage rather than a fix — but it is coverage that can now fail for a reason our own tests never could. The fixtures carry a README with their provenance and a refresh command, because a copied artifact drifts silently. It also records what is still missing: the 19 portable scenario vectors need a runner that drives our client through a scripted trace and projects state per `foundation/conformance.md`, and that is where the convergence and crash/restart coverage lives. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../EncryptedMediaImetaVectorTest.kt | 145 ++++++++++ .../NostrRoutingByteFixtureTest.kt | 158 +++++++++++ .../resources/marmot/conformance/README.md | 41 +++ .../marmot/conformance/imeta-v1.json | 216 +++++++++++++++ .../marmot/conformance/imeta-v2.json | 250 ++++++++++++++++++ ...routing-v1-invalid-duplicate-relay.v1.json | 36 +++ .../nostr-routing-v1-valid-state.v1.json | 38 +++ .../nostr-routing-v1-valid-update.v1.json | 34 +++ 8 files changed, 918 insertions(+) create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/conformance/EncryptedMediaImetaVectorTest.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/conformance/NostrRoutingByteFixtureTest.kt create mode 100644 quartz/src/commonTest/resources/marmot/conformance/README.md create mode 100644 quartz/src/commonTest/resources/marmot/conformance/imeta-v1.json create mode 100644 quartz/src/commonTest/resources/marmot/conformance/imeta-v2.json create mode 100644 quartz/src/commonTest/resources/marmot/conformance/nostr-routing-v1-invalid-duplicate-relay.v1.json create mode 100644 quartz/src/commonTest/resources/marmot/conformance/nostr-routing-v1-valid-state.v1.json create mode 100644 quartz/src/commonTest/resources/marmot/conformance/nostr-routing-v1-valid-update.v1.json diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/conformance/EncryptedMediaImetaVectorTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/conformance/EncryptedMediaImetaVectorTest.kt new file mode 100644 index 0000000000..792dc4714b --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/conformance/EncryptedMediaImetaVectorTest.kt @@ -0,0 +1,145 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.conformance + +import com.vitorpamplona.quartz.TestResourceLoader +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaPolicyV2 +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaV2 +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlinx.serialization.json.Json +import kotlinx.serialization.json.jsonArray +import kotlinx.serialization.json.jsonObject +import kotlinx.serialization.json.jsonPrimitive +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertNull +import kotlin.test.assertTrue +import kotlin.test.fail + +/** + * The reference implementation's own `imeta` fixtures, run against our parser. + * + * These are `mdk/fixtures/encrypted-media/imeta-{v1,v2}.json`, copied verbatim. + * The file says what they are for: "Shared by marmot-app, marmot-uniffi, and + * wn-cli tests so every layer agrees on validation verdicts and exact wire + * round-trips." We are another layer, and until now we agreed with nobody but + * ourselves — our own tests would happily bless a parser that read the tag + * differently from every other client, because they were written from the same + * reading of the spec as the parser. + * + * The interesting half is the rejections. A parser that is merely lenient + * passes every golden case and still cannot be interoperated with: it accepts + * tags a conformant sender never emits, so it silently renders media that + * another client refuses, and the two disagree about what the group contains. + */ +class EncryptedMediaImetaVectorTest { + private fun fixture(name: String) = Json.parseToJsonElement(TestResourceLoader().loadString("marmot/conformance/$name")).jsonObject + + private val v2 by lazy { fixture("imeta-v2.json") } + private val v1 by lazy { fixture("imeta-v1.json") } + + private fun cases(fixture: kotlinx.serialization.json.JsonObject) = fixture["cases"]!!.jsonArray.map { it.jsonObject } + + private fun tagOf(case: kotlinx.serialization.json.JsonObject) = case["tag"]!!.jsonArray.map { it.jsonPrimitive.content }.toTypedArray() + + private fun nameOf(case: kotlinx.serialization.json.JsonObject) = case["name"]!!.jsonPrimitive.content + + @Test + fun everyGoldenV2CaseParsesToExactlyTheExpectedFields() { + val golden = cases(v2).filter { it["valid"]!!.jsonPrimitive.content == "true" } + assertTrue(golden.size >= 5, "expected the full golden set, got ${golden.size}") + + for (case in golden) { + val name = nameOf(case) + val reference = + try { + EncryptedMediaV2.parseImetaTag(tagOf(case)) + } catch (e: Exception) { + fail("golden case '$name' was rejected: ${e.message}") + } + val expected = case["expected"]!!.jsonObject + + assertEquals( + expected["locators"]!!.jsonArray.map { + it.jsonObject["kind"]!!.jsonPrimitive.content to it.jsonObject["value"]!!.jsonPrimitive.content + }, + reference.locators.map { it.kind to it.value }, + "$name locators (order is the producer's and is preserved)", + ) + assertEquals(expected["ciphertext_sha256"]!!.jsonPrimitive.content, reference.ciphertextSha256.toHexKey(), "$name ciphertext_sha256") + assertEquals(expected["plaintext_sha256"]!!.jsonPrimitive.content, reference.plaintextSha256.toHexKey(), "$name plaintext_sha256") + assertEquals(expected["nonce_hex"]!!.jsonPrimitive.content, reference.nonce.toHexKey(), "$name nonce") + assertEquals(expected["media_type"]!!.jsonPrimitive.content, reference.mediaType, "$name m") + assertEquals(expected["file_name"]!!.jsonPrimitive.content, reference.filename, "$name filename") + + // The fixture distinguishes absent (null) from present-but-empty + // (""), and so must we: a hint that was written and left blank is + // not the same wire state as one that was never written, and + // collapsing them changes what a re-encode emits. + assertEquals(optional(expected, "dim"), reference.dim, "$name dim") + assertEquals(optional(expected, "thumbhash"), reference.thumbhash, "$name thumbhash") + } + } + + @Test + fun everyRejectionV2CaseIsRejected() { + val rejections = cases(v2).filter { it["valid"]!!.jsonPrimitive.content == "false" } + assertTrue(rejections.size >= 5, "expected the full rejection set, got ${rejections.size}") + + for (case in rejections) { + val name = nameOf(case) + assertNull( + EncryptedMediaV2.parseImetaTagOrNull(tagOf(case)), + "'$name' must be rejected — the fixture expects '${case["error_contains"]?.jsonPrimitive?.content}'", + ) + } + } + + @Test + fun aV1TagIsNotReadableAsV2() { + // "Component id `0x8008` remains the frozen v1 policy and MUST NOT be + // reinterpreted as v2." The two share a field layout closely enough + // that a parser keying only on the fields would happily read one as the + // other — and then derive a file key under the wrong scheme. So every + // v1 case, including the ones v1 itself calls valid, has to bounce off + // the v2 parser. + val v1Cases = cases(v1) + assertTrue(v1Cases.isNotEmpty(), "expected the v1 fixture to carry cases") + assertEquals("encrypted-media-v1", v1["media_version"]!!.jsonPrimitive.content) + + for (case in v1Cases) { + assertNull( + EncryptedMediaV2.parseImetaTagOrNull(tagOf(case)), + "v1 case '${nameOf(case)}' must not parse as ${EncryptedMediaPolicyV2.MEDIA_FORMAT}", + ) + } + } + + /** A fixture field that is absent, JSON null, or a real string. */ + private fun optional( + obj: kotlinx.serialization.json.JsonObject, + key: String, + ): String? = + obj[key]?.let { element -> + val primitive = element.jsonPrimitive + if (primitive.isString) primitive.content else null + } +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/conformance/NostrRoutingByteFixtureTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/conformance/NostrRoutingByteFixtureTest.kt new file mode 100644 index 0000000000..0c9358112c --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/conformance/NostrRoutingByteFixtureTest.kt @@ -0,0 +1,158 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.conformance + +import com.vitorpamplona.quartz.TestResourceLoader +import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds +import com.vitorpamplona.quartz.marmot.appComponents.NostrRoutingV1 +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.utils.Hex +import kotlinx.serialization.json.Json +import kotlinx.serialization.json.jsonArray +import kotlinx.serialization.json.jsonObject +import kotlinx.serialization.json.jsonPrimitive +import kotlin.test.Test +import kotlin.test.assertContentEquals +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertTrue +import kotlin.test.fail + +/** + * The reference implementation's byte-level fixtures for + * `marmot.transport.nostr.routing.v1` (`0x8004`), run against our codec. + * + * These come from `mdk/crates/cgka-conformance-simulator/vectors/byte-fixtures/`, + * copied verbatim, and they are the only tests we have that pin the WIRE BYTES + * of a Marmot app component against another implementation rather than against + * our own encoder. A round-trip test proves we can read what we wrote; these + * prove we can read what MDK wrote, which is a different claim and the one that + * matters for a group with members on both. + * + * The invalid fixture is the sharper one. Its note says implementations "MUST + * reject this update during component validation" — a decoder that quietly + * deduplicated the relay list instead would hold different canonical bytes than + * the peer that sent them, and the two would disagree about the group's state + * forever after. + */ +class NostrRoutingByteFixtureTest { + private fun fixture(name: String) = Json.parseToJsonElement(TestResourceLoader().loadString("marmot/conformance/$name")).jsonObject + + private fun bytesOf(fixture: kotlinx.serialization.json.JsonObject) = Hex.decode(fixture["bytes"]!!.jsonObject["hex"]!!.jsonPrimitive.content) + + private fun expectedRelays(fixture: kotlinx.serialization.json.JsonObject) = + fixture["expected"]!! + .jsonObject["fields"]!! + .jsonObject["relays"]!! + .jsonArray + .map { it.jsonPrimitive.content } + + private fun expectedGroupId(fixture: kotlinx.serialization.json.JsonObject) = + fixture["expected"]!! + .jsonObject["fields"]!! + .jsonObject["nostr_group_id_hex"]!! + .jsonPrimitive.content + + /** Every fixture names the component it belongs to; check we read the right ones. */ + private fun assertIsRoutingFixture(fixture: kotlinx.serialization.json.JsonObject) { + assertEquals("1", fixture["fixture_version"]!!.jsonPrimitive.content) + assertEquals( + AppComponentIds.NOSTR_ROUTING_V1, + fixture["component"]!! + .jsonObject["id"]!! + .jsonPrimitive.content + .removePrefix("0x") + .toInt(16), + ) + } + + @Test + fun theValidStateFixtureDecodesToItsDeclaredFields() { + val fixture = fixture("nostr-routing-v1-valid-state.v1.json") + assertIsRoutingFixture(fixture) + assertTrue(fixture["expected"]!!.jsonObject["valid"]!!.jsonPrimitive.content == "true") + + val decoded = NostrRoutingV1.decode(bytesOf(fixture)) + assertEquals(expectedGroupId(fixture), decoded.nostrGroupId.toHexKey()) + assertEquals(expectedRelays(fixture), decoded.relays) + } + + @Test + fun weReEncodeTheValidStateToTheSameBytes() { + // Canonical encoding is a two-way claim: reading their bytes is half of + // it, and writing bytes they would read is the other. A component whose + // re-encode differs by one byte is state a conformant decoder rejects + // outright, because it compares against its own serialization. + val fixture = fixture("nostr-routing-v1-valid-state.v1.json") + val bytes = bytesOf(fixture) + assertContentEquals(bytes, NostrRoutingV1.decode(bytes).encode()) + } + + @Test + fun theValidUpdateFixtureDecodesWithTheSameCodecAsTheState() { + // "The update is a full replacement state and begins with + // nostr_group_id[32]; it is decoded by the same codec as the state + // vector." An implementation that gave the update its own shape would + // read a relay rotation as garbage. + val fixture = fixture("nostr-routing-v1-valid-update.v1.json") + assertIsRoutingFixture(fixture) + + val bytes = bytesOf(fixture) + val decoded = NostrRoutingV1.decode(bytes) + assertEquals(expectedGroupId(fixture), decoded.nostrGroupId.toHexKey()) + assertEquals(expectedRelays(fixture), decoded.relays) + assertContentEquals(bytes, decoded.encode()) + } + + @Test + fun theDuplicateRelayFixtureIsRejected() { + val fixture = fixture("nostr-routing-v1-invalid-duplicate-relay.v1.json") + assertIsRoutingFixture(fixture) + assertTrue(fixture["expected"]!!.jsonObject["valid"]!!.jsonPrimitive.content == "false") + assertEquals( + listOf("duplicate_relay"), + fixture["expected"]!!.jsonObject["errors"]!!.jsonArray.map { it.jsonPrimitive.content }, + ) + + // Rejected, not repaired. Silently dropping the duplicate would leave + // us holding bytes no peer agrees with. + assertFailsWith("a duplicate relay must be refused, not deduplicated") { + NostrRoutingV1.decode(bytesOf(fixture)) + } + } + + @Test + fun theComponentDataWrapperCarriesTheSameStateBytes() { + // `component_data_hex` is the OpenMLS ComponentData entry: the uint16 + // component id, then the state as a variable-length vector. Checking + // the inner bytes against `hex` is what catches a framing mistake in + // the dictionary layer rather than in the component codec. + val fixture = fixture("nostr-routing-v1-valid-state.v1.json") + val wrapper = Hex.decode(fixture["bytes"]!!.jsonObject["component_data_hex"]!!.jsonPrimitive.content) + val state = bytesOf(fixture) + + val id = ((wrapper[0].toInt() and 0xff) shl 8) or (wrapper[1].toInt() and 0xff) + assertEquals(AppComponentIds.NOSTR_ROUTING_V1, id, "the wrapper names 0x8004") + if (!wrapper.copyOfRange(wrapper.size - state.size, wrapper.size).contentEquals(state)) { + fail("the ComponentData wrapper does not end with the state bytes it declares") + } + } +} diff --git a/quartz/src/commonTest/resources/marmot/conformance/README.md b/quartz/src/commonTest/resources/marmot/conformance/README.md new file mode 100644 index 0000000000..6eb58d466d --- /dev/null +++ b/quartz/src/commonTest/resources/marmot/conformance/README.md @@ -0,0 +1,41 @@ +# Marmot conformance fixtures (copied from MDK) + +These files are **copied verbatim** from the reference implementation. They are +not ours to edit: their whole value is that another implementation wrote them, +so a local "fix" to make a test pass would delete the only thing they prove. + +| File | Upstream path | +|---|---| +| `imeta-v1.json`, `imeta-v2.json` | `fixtures/encrypted-media/` | +| `nostr-routing-v1-*.v1.json` | `crates/cgka-conformance-simulator/vectors/byte-fixtures/` | + +Upstream is the MDK checkout the interop harness already vendors at +`cli/tests/marmot/state/mdk`. To refresh: + +```bash +MDK=cli/tests/marmot/state/mdk +cp $MDK/fixtures/encrypted-media/imeta-v{1,2}.json \ + quartz/src/commonTest/resources/marmot/conformance/ +cp $MDK/crates/cgka-conformance-simulator/vectors/byte-fixtures/nostr-routing-v1-*.v1.json \ + quartz/src/commonTest/resources/marmot/conformance/ +``` + +A refresh that makes a test fail is a signal, not a chore: either the wire +format moved and we have not, or upstream tightened a rule we were lenient +about. + +## What is NOT here yet + +`crates/cgka-conformance-simulator/vectors/manifest.v1.json` lists 41 artifacts, +31 marked `"status": "portable"` — built for exactly this purpose. The 19 +scenario vectors (`three-client-message-exchange`, `publish-fail`, +`convergence-*-selected`, `restart-delivery-faults`, `late-welcome-backfill`, …) +need a runner that can drive our client through a scripted trace and project +its state per `marmot/foundation/conformance.md` ("Canonical snapshot"). That +is a separate piece of work, and it is where the convergence and crash/restart +coverage lives. + +`tests/agent_text_stream_vectors.rs` pins the key context encoding, the HKDF +record-key derivation, the record AAD, the transcript hash and the broker +control envelope as literal bytes. It is Rust source rather than a data file, +so adopting it means transcribing the expected values. diff --git a/quartz/src/commonTest/resources/marmot/conformance/imeta-v1.json b/quartz/src/commonTest/resources/marmot/conformance/imeta-v1.json new file mode 100644 index 0000000000..6f0f258fb5 --- /dev/null +++ b/quartz/src/commonTest/resources/marmot/conformance/imeta-v1.json @@ -0,0 +1,216 @@ +{ + "schema": "mdk-encrypted-media-imeta-fixture/v1", + "description": "Golden and rejection imeta fixtures for encrypted-media-v1. Shared by marmot-app, marmot-uniffi, and wn-cli tests so every layer agrees on validation verdicts and exact wire round-trips. `expected.dim`/`expected.thumbhash` distinguish absent (null) from present-empty (\"\").", + "media_version": "encrypted-media-v1", + "cases": [ + { + "name": "golden-image-full", + "source_epoch": 7, + "valid": true, + "tag": [ + "imeta", + "v encrypted-media-v1", + "locator blossom-v1 https://media.example/1111111111111111111111111111111111111111111111111111111111111111.bin", + "ciphertext_sha256 1111111111111111111111111111111111111111111111111111111111111111", + "plaintext_sha256 2222222222222222222222222222222222222222222222222222222222222222", + "nonce 333333333333333333333333", + "m image/png", + "filename diagram.png", + "dim 800x600", + "thumbhash 1QcSHQRnh493V4dIh4eXh1h4kJUI" + ], + "expected": { + "version": "encrypted-media-v1", + "locators": [ + { + "kind": "blossom-v1", + "value": "https://media.example/1111111111111111111111111111111111111111111111111111111111111111.bin" + } + ], + "ciphertext_sha256": "1111111111111111111111111111111111111111111111111111111111111111", + "plaintext_sha256": "2222222222222222222222222222222222222222222222222222222222222222", + "nonce_hex": "333333333333333333333333", + "media_type": "image/png", + "file_name": "diagram.png", + "dim": "800x600", + "thumbhash": "1QcSHQRnh493V4dIh4eXh1h4kJUI" + } + }, + { + "name": "golden-document-minimal", + "source_epoch": 42, + "valid": true, + "tag": [ + "imeta", + "v encrypted-media-v1", + "locator blossom-v1 https://media.example/4444444444444444444444444444444444444444444444444444444444444444.bin", + "ciphertext_sha256 4444444444444444444444444444444444444444444444444444444444444444", + "plaintext_sha256 5555555555555555555555555555555555555555555555555555555555555555", + "nonce 666666666666666666666666", + "m application/pdf", + "filename brief.pdf" + ], + "expected": { + "version": "encrypted-media-v1", + "locators": [ + { + "kind": "blossom-v1", + "value": "https://media.example/4444444444444444444444444444444444444444444444444444444444444444.bin" + } + ], + "ciphertext_sha256": "4444444444444444444444444444444444444444444444444444444444444444", + "plaintext_sha256": "5555555555555555555555555555555555555555555555555555555555555555", + "nonce_hex": "666666666666666666666666", + "media_type": "application/pdf", + "file_name": "brief.pdf", + "dim": null, + "thumbhash": null + } + }, + { + "name": "golden-present-empty-dim", + "source_epoch": 7, + "valid": true, + "tag": [ + "imeta", + "v encrypted-media-v1", + "locator blossom-v1 https://media.example/1111111111111111111111111111111111111111111111111111111111111111.bin", + "ciphertext_sha256 1111111111111111111111111111111111111111111111111111111111111111", + "plaintext_sha256 2222222222222222222222222222222222222222222222222222222222222222", + "nonce 333333333333333333333333", + "m image/png", + "filename diagram.png", + "dim " + ], + "expected": { + "version": "encrypted-media-v1", + "locators": [ + { + "kind": "blossom-v1", + "value": "https://media.example/1111111111111111111111111111111111111111111111111111111111111111.bin" + } + ], + "ciphertext_sha256": "1111111111111111111111111111111111111111111111111111111111111111", + "plaintext_sha256": "2222222222222222222222222222222222222222222222222222222222222222", + "nonce_hex": "333333333333333333333333", + "media_type": "image/png", + "file_name": "diagram.png", + "dim": "", + "thumbhash": null + } + }, + { + "name": "rejects-missing-nonce", + "source_epoch": 7, + "valid": false, + "error_contains": "nonce", + "tag": [ + "imeta", + "v encrypted-media-v1", + "locator blossom-v1 https://media.example/1111111111111111111111111111111111111111111111111111111111111111.bin", + "ciphertext_sha256 1111111111111111111111111111111111111111111111111111111111111111", + "plaintext_sha256 2222222222222222222222222222222222222222222222222222222222222222", + "m image/png", + "filename diagram.png" + ] + }, + { + "name": "rejects-duplicate-media-type", + "source_epoch": 7, + "valid": false, + "error_contains": "exactly one m", + "tag": [ + "imeta", + "v encrypted-media-v1", + "locator blossom-v1 https://media.example/1111111111111111111111111111111111111111111111111111111111111111.bin", + "ciphertext_sha256 1111111111111111111111111111111111111111111111111111111111111111", + "plaintext_sha256 2222222222222222222222222222222222222222222222222222222222222222", + "nonce 333333333333333333333333", + "m image/png", + "filename diagram.png", + "m image/jpeg" + ] + }, + { + "name": "rejects-blurhash-field", + "source_epoch": 7, + "valid": false, + "error_contains": "thumbhash", + "tag": [ + "imeta", + "v encrypted-media-v1", + "locator blossom-v1 https://media.example/1111111111111111111111111111111111111111111111111111111111111111.bin", + "ciphertext_sha256 1111111111111111111111111111111111111111111111111111111111111111", + "plaintext_sha256 2222222222222222222222222222222222222222222222222222222222222222", + "nonce 333333333333333333333333", + "m image/png", + "filename diagram.png", + "blurhash LEHV6nWB2yk8pyo0adR*.7kCMdnj" + ] + }, + { + "name": "rejects-blossom-locator-hash-mismatch", + "source_epoch": 7, + "valid": false, + "error_contains": "locator", + "tag": [ + "imeta", + "v encrypted-media-v1", + "locator blossom-v1 https://media.example/7777777777777777777777777777777777777777777777777777777777777777.bin", + "ciphertext_sha256 1111111111111111111111111111111111111111111111111111111111111111", + "plaintext_sha256 2222222222222222222222222222222222222222222222222222222222222222", + "nonce 333333333333333333333333", + "m image/png", + "filename diagram.png" + ] + }, + { + "name": "rejects-unknown-version", + "source_epoch": 7, + "valid": false, + "error_contains": "version", + "tag": [ + "imeta", + "v encrypted-media-v3", + "locator blossom-v1 https://media.example/1111111111111111111111111111111111111111111111111111111111111111.bin", + "ciphertext_sha256 1111111111111111111111111111111111111111111111111111111111111111", + "plaintext_sha256 2222222222222222222222222222222222222222222222222222222222222222", + "nonce 333333333333333333333333", + "m image/png", + "filename diagram.png" + ] + }, + { + "name": "rejects-whitespace-only-filename", + "source_epoch": 7, + "valid": false, + "error_contains": "file name", + "tag": [ + "imeta", + "v encrypted-media-v1", + "locator blossom-v1 https://media.example/1111111111111111111111111111111111111111111111111111111111111111.bin", + "ciphertext_sha256 1111111111111111111111111111111111111111111111111111111111111111", + "plaintext_sha256 2222222222222222222222222222222222222222222222222222222222222222", + "nonce 333333333333333333333333", + "m image/png", + "filename " + ] + }, + { + "name": "rejects-short-nonce", + "source_epoch": 7, + "valid": false, + "error_contains": "nonce", + "tag": [ + "imeta", + "v encrypted-media-v1", + "locator blossom-v1 https://media.example/1111111111111111111111111111111111111111111111111111111111111111.bin", + "ciphertext_sha256 1111111111111111111111111111111111111111111111111111111111111111", + "plaintext_sha256 2222222222222222222222222222222222222222222222222222222222222222", + "nonce 3333333333333333", + "m image/png", + "filename diagram.png" + ] + } + ] +} diff --git a/quartz/src/commonTest/resources/marmot/conformance/imeta-v2.json b/quartz/src/commonTest/resources/marmot/conformance/imeta-v2.json new file mode 100644 index 0000000000..4d180aba3a --- /dev/null +++ b/quartz/src/commonTest/resources/marmot/conformance/imeta-v2.json @@ -0,0 +1,250 @@ +{ + "schema": "mdk-encrypted-media-imeta-fixture/v1", + "description": "Golden and rejection imeta fixtures for encrypted-media-v2. Shared by marmot-app, marmot-uniffi, and wn-cli tests so every layer agrees on validation verdicts and exact wire round-trips. `expected.dim`/`expected.thumbhash` distinguish absent (null) from present-empty (\"\").", + "media_version": "encrypted-media-v2", + "cases": [ + { + "name": "golden-image-full", + "source_epoch": 9, + "valid": true, + "tag": [ + "imeta", + "v encrypted-media-v2", + "locator blossom-v1 https://media.example/abababababababababababababababababababababababababababababababab.bin", + "ciphertext_sha256 abababababababababababababababababababababababababababababababab", + "plaintext_sha256 cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce efefefefefefefefefefefef", + "m image/jpeg", + "filename photo.jpg", + "dim 1920x1080", + "thumbhash 1QcSHQRnh493V4dIh4eXh1h4kJUI" + ], + "expected": { + "version": "encrypted-media-v2", + "locators": [ + { + "kind": "blossom-v1", + "value": "https://media.example/abababababababababababababababababababababababababababababababab.bin" + } + ], + "ciphertext_sha256": "abababababababababababababababababababababababababababababababab", + "plaintext_sha256": "cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce_hex": "efefefefefefefefefefefef", + "media_type": "image/jpeg", + "file_name": "photo.jpg", + "dim": "1920x1080", + "thumbhash": "1QcSHQRnh493V4dIh4eXh1h4kJUI" + } + }, + { + "name": "golden-audio-minimal", + "source_epoch": 3, + "valid": true, + "tag": [ + "imeta", + "v encrypted-media-v2", + "locator blossom-v1 https://media.example/1212121212121212121212121212121212121212121212121212121212121212.bin", + "ciphertext_sha256 1212121212121212121212121212121212121212121212121212121212121212", + "plaintext_sha256 3434343434343434343434343434343434343434343434343434343434343434", + "nonce 565656565656565656565656", + "m audio/ogg", + "filename voice.ogg" + ], + "expected": { + "version": "encrypted-media-v2", + "locators": [ + { + "kind": "blossom-v1", + "value": "https://media.example/1212121212121212121212121212121212121212121212121212121212121212.bin" + } + ], + "ciphertext_sha256": "1212121212121212121212121212121212121212121212121212121212121212", + "plaintext_sha256": "3434343434343434343434343434343434343434343434343434343434343434", + "nonce_hex": "565656565656565656565656", + "media_type": "audio/ogg", + "file_name": "voice.ogg", + "dim": null, + "thumbhash": null + } + }, + { + "name": "golden-multi-locator", + "source_epoch": 12, + "valid": true, + "tag": [ + "imeta", + "v encrypted-media-v2", + "locator blossom-v1 https://media.example/abababababababababababababababababababababababababababababababab.bin", + "locator mirror-v9 https://mirror.example/blob", + "ciphertext_sha256 abababababababababababababababababababababababababababababababab", + "plaintext_sha256 cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce efefefefefefefefefefefef", + "m video/mp4", + "filename clip.mp4" + ], + "expected": { + "version": "encrypted-media-v2", + "locators": [ + { + "kind": "blossom-v1", + "value": "https://media.example/abababababababababababababababababababababababababababababababab.bin" + }, + { + "kind": "mirror-v9", + "value": "https://mirror.example/blob" + } + ], + "ciphertext_sha256": "abababababababababababababababababababababababababababababababab", + "plaintext_sha256": "cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce_hex": "efefefefefefefefefefefef", + "media_type": "video/mp4", + "file_name": "clip.mp4", + "dim": null, + "thumbhash": null + } + }, + { + "name": "golden-present-empty-dim", + "source_epoch": 5, + "valid": true, + "tag": [ + "imeta", + "v encrypted-media-v2", + "locator blossom-v1 https://media.example/abababababababababababababababababababababababababababababababab.bin", + "ciphertext_sha256 abababababababababababababababababababababababababababababababab", + "plaintext_sha256 cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce efefefefefefefefefefefef", + "m image/jpeg", + "filename photo.jpg", + "dim " + ], + "expected": { + "version": "encrypted-media-v2", + "locators": [ + { + "kind": "blossom-v1", + "value": "https://media.example/abababababababababababababababababababababababababababababababab.bin" + } + ], + "ciphertext_sha256": "abababababababababababababababababababababababababababababababab", + "plaintext_sha256": "cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce_hex": "efefefefefefefefefefefef", + "media_type": "image/jpeg", + "file_name": "photo.jpg", + "dim": "", + "thumbhash": null + } + }, + { + "name": "golden-exact-space-filename", + "source_epoch": 5, + "valid": true, + "tag": [ + "imeta", + "v encrypted-media-v2", + "locator blossom-v1 https://media.example/abababababababababababababababababababababababababababababababab.bin", + "ciphertext_sha256 abababababababababababababababababababababababababababababababab", + "plaintext_sha256 cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce efefefefefefefefefefefef", + "m image/jpeg", + "filename " + ], + "expected": { + "version": "encrypted-media-v2", + "locators": [ + { + "kind": "blossom-v1", + "value": "https://media.example/abababababababababababababababababababababababababababababababab.bin" + } + ], + "ciphertext_sha256": "abababababababababababababababababababababababababababababababab", + "plaintext_sha256": "cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce_hex": "efefefefefefefefefefefef", + "media_type": "image/jpeg", + "file_name": " ", + "dim": null, + "thumbhash": null + } + }, + { + "name": "rejects-noncanonical-media-type", + "source_epoch": 9, + "valid": false, + "error_contains": "canonical", + "tag": [ + "imeta", + "v encrypted-media-v2", + "locator blossom-v1 https://media.example/abababababababababababababababababababababababababababababababab.bin", + "ciphertext_sha256 abababababababababababababababababababababababababababababababab", + "plaintext_sha256 cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce efefefefefefefefefefefef", + "m Image/JPG", + "filename photo.jpg" + ] + }, + { + "name": "rejects-overlong-filename", + "source_epoch": 9, + "valid": false, + "error_contains": "file name", + "tag": [ + "imeta", + "v encrypted-media-v2", + "locator blossom-v1 https://media.example/abababababababababababababababababababababababababababababababab.bin", + "ciphertext_sha256 abababababababababababababababababababababababababababababababab", + "plaintext_sha256 cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce efefefefefefefefefefefef", + "m image/jpeg", + "filename aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" + ] + }, + { + "name": "rejects-nul-in-filename", + "source_epoch": 9, + "valid": false, + "error_contains": "file name", + "tag": [ + "imeta", + "v encrypted-media-v2", + "locator blossom-v1 https://media.example/abababababababababababababababababababababababababababababababab.bin", + "ciphertext_sha256 abababababababababababababababababababababababababababababababab", + "plaintext_sha256 cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce efefefefefefefefefefefef", + "m image/jpeg", + "filename bad\u0000name.jpg" + ] + }, + { + "name": "rejects-duplicate-plaintext-hash", + "source_epoch": 9, + "valid": false, + "error_contains": "exactly one plaintext_sha256", + "tag": [ + "imeta", + "v encrypted-media-v2", + "locator blossom-v1 https://media.example/abababababababababababababababababababababababababababababababab.bin", + "ciphertext_sha256 abababababababababababababababababababababababababababababababab", + "plaintext_sha256 cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce efefefefefefefefefefefef", + "m image/jpeg", + "filename photo.jpg", + "plaintext_sha256 3434343434343434343434343434343434343434343434343434343434343434" + ] + }, + { + "name": "rejects-missing-version", + "source_epoch": 9, + "valid": false, + "error_contains": "missing v", + "tag": [ + "imeta", + "locator blossom-v1 https://media.example/abababababababababababababababababababababababababababababababab.bin", + "ciphertext_sha256 abababababababababababababababababababababababababababababababab", + "plaintext_sha256 cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd", + "nonce efefefefefefefefefefefef", + "m image/jpeg", + "filename photo.jpg" + ] + } + ] +} diff --git a/quartz/src/commonTest/resources/marmot/conformance/nostr-routing-v1-invalid-duplicate-relay.v1.json b/quartz/src/commonTest/resources/marmot/conformance/nostr-routing-v1-invalid-duplicate-relay.v1.json new file mode 100644 index 0000000000..68be8741b7 --- /dev/null +++ b/quartz/src/commonTest/resources/marmot/conformance/nostr-routing-v1-invalid-duplicate-relay.v1.json @@ -0,0 +1,36 @@ +{ + "fixture_name": "marmot.transport.nostr.routing.v1/update-invalid-duplicate-relay/v1", + "fixture_version": "1", + "vector_type": "app_component_update", + "component": { + "id": "0x8004", + "name": "marmot.transport.nostr.routing.v1", + "document": "spec/app-components/nostr-routing-v1.md" + }, + "encoding": { + "format": "Marmot canonical encoding", + "notes": [ + "bytes.hex is the MarmotNostrRoutingUpdateV1 payload (full replacement state), not the AppDataUpdate proposal wrapper.", + "It carries nostr_group_id[32] then two relay entries that decode to the same byte string." + ] + }, + "bytes": { + "hex": "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f2c157773733a2f2f72656c61792d612e6578616d706c65157773733a2f2f72656c61792d612e6578616d706c65" + }, + "expected": { + "valid": false, + "fields": { + "nostr_group_id_hex": "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", + "relays": [ + "wss://relay-a.example", + "wss://relay-a.example" + ] + }, + "errors": [ + "duplicate_relay" + ] + }, + "notes": [ + "Implementations MUST reject this update during component validation; the reference decoder returns a duplicate-relay error." + ] +} diff --git a/quartz/src/commonTest/resources/marmot/conformance/nostr-routing-v1-valid-state.v1.json b/quartz/src/commonTest/resources/marmot/conformance/nostr-routing-v1-valid-state.v1.json new file mode 100644 index 0000000000..d2a7d9e14e --- /dev/null +++ b/quartz/src/commonTest/resources/marmot/conformance/nostr-routing-v1-valid-state.v1.json @@ -0,0 +1,38 @@ +{ + "fixture_name": "marmot.transport.nostr.routing.v1/state-valid-two-relays/v1", + "fixture_version": "1", + "vector_type": "app_component_state", + "component": { + "id": "0x8004", + "name": "marmot.transport.nostr.routing.v1", + "document": "spec/app-components/nostr-routing-v1.md" + }, + "encoding": { + "format": "Marmot canonical encoding", + "notes": [ + "bytes.hex is the component state bytes stored in AppDataDictionary.component_data.data, in the Marmot canonical encoding (spec/foundation/canonical-encoding.md): QUIC variable-length length prefixes.", + "opaque nostr_group_id[32] is exactly 32 bytes with NO length prefix.", + "relays is a QUIC-varint byte length, then each MarmotNostrRelayV1.url<1..512> is a QUIC-varint length prefix followed by the URL bytes.", + "bytes.component_data_hex is the OpenMLS ComponentData entry: component_id (uint16 0x8004) then the data as a variable-length byte vector wrapping bytes.hex." + ] + }, + "bytes": { + "hex": "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f2c157773733a2f2f72656c61792d612e6578616d706c65157773733a2f2f72656c61792d622e6578616d706c65", + "component_data_hex": "8004404d000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f2c157773733a2f2f72656c61792d612e6578616d706c65157773733a2f2f72656c61792d622e6578616d706c65" + }, + "expected": { + "valid": true, + "fields": { + "nostr_group_id_hex": "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", + "relays": [ + "wss://relay-a.example", + "wss://relay-b.example" + ] + }, + "errors": [] + }, + "notes": [ + "Relay order is byte-lexicographic over the URL content bytes and duplicate-free.", + "This fixture does not include an AppDataUpdate wrapper." + ] +} diff --git a/quartz/src/commonTest/resources/marmot/conformance/nostr-routing-v1-valid-update.v1.json b/quartz/src/commonTest/resources/marmot/conformance/nostr-routing-v1-valid-update.v1.json new file mode 100644 index 0000000000..f0c4b5b9ca --- /dev/null +++ b/quartz/src/commonTest/resources/marmot/conformance/nostr-routing-v1-valid-update.v1.json @@ -0,0 +1,34 @@ +{ + "fixture_name": "marmot.transport.nostr.routing.v1/update-valid-full-replacement/v1", + "fixture_version": "1", + "vector_type": "app_component_update", + "component": { + "id": "0x8004", + "name": "marmot.transport.nostr.routing.v1", + "document": "spec/app-components/nostr-routing-v1.md" + }, + "encoding": { + "format": "Marmot canonical encoding", + "notes": [ + "bytes.hex is the MarmotNostrRoutingUpdateV1 payload, not the AppDataUpdate proposal wrapper.", + "The update payload is a full replacement state (MarmotNostrRoutingUpdateV1 = MarmotNostrRoutingV1): it carries the 32-byte nostr_group_id followed by the new relays, in the Marmot canonical encoding.", + "This example changes the relay list to a single relay while keeping nostr_group_id; an update MAY also change nostr_group_id (a routing rotation)." + ] + }, + "bytes": { + "hex": "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f16157773733a2f2f72656c61792d632e6578616d706c65" + }, + "expected": { + "valid": true, + "fields": { + "nostr_group_id_hex": "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", + "relays": [ + "wss://relay-c.example" + ] + }, + "errors": [] + }, + "notes": [ + "The update is a full replacement state and begins with nostr_group_id[32]; it is decoded by the same codec as the state vector." + ] +} From 1794ed5249cc665c13c4cfbc84ee1a899c9d6238 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 18:29:36 +0000 Subject: [PATCH 39/79] fix: make the sync benchmark opt-in; stop advertising the QUIC preview path MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Two unrelated things that both amount to not paying for something nobody asked for. **`MirrorSyncThroughputTest` is a benchmark, so it now opts in.** It preloaded a million events and pulled them over a real WebSocket on every ordinary test run: 4,584 s of `:geode:test`'s 4,636 s — 98.9% of the module's test time for one test that asserts nothing about correctness and reported `skipped` at the end anyway. Every other benchmark in the module is already gated this way (`perf.LoadBenchmark`). It now bails before building anything, and enables on `-DrunLoadBenchmark=true` OR on any of its own sizing properties, so every invocation its kdoc documents still runs it — naming a size is itself the opt-in. Measured after: the test takes 5 ms, the module takes 64.8 s, and `-DsyncN=2000` still prints a throughput number. **The agent text stream QUIC path is kept but no longer advertised, and nothing starts it.** Nothing in the deployed network publishes those previews. So: - `SUPPORTED_COMPONENTS` drops `0x8006` and the leaf capabilities drop `0xF2D1`/`0xF2D2`/`0xF2D4`. A capability is a standing promise to every peer that reads our KeyPackage, and one for a path nobody exercises costs something and buys nothing. The captured reference KeyPackage in our own conformance vector does not advertise `0x8006` either. - The Android chat screen no longer builds a stream watcher and dials the brokers a kind:1200 advertises. That was a UDP connection attempt to a third-party endpoint on every feed change, on behalf of a feature with nothing to show — a service we start, not a capability we hold. The implementation stays and stays tested: `:marmotQuic`, the codecs, `amy marmot stream`, the direct path, the certificate pinning and the interop tests are all untouched. The module README records the posture and the exact way back. Three tests asserted the old advertisement and were reworked rather than deleted. The role-enforcement gate is still covered — the tests now build leaves that explicitly carry the roles, which is the better shape anyway, since a test that exercised the gate through OUR default was really asserting the default and stopped testing the gate the moment it changed. A new test pins the new default: our KeyPackage carries no role and is therefore refused by a group requiring one. That refusal is the deliberate cost, so it is asserted rather than discovered. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../chats/marmotGroup/MarmotGroupChatView.kt | 43 ++++------- .../geode/mirror/MirrorSyncThroughputTest.kt | 30 ++++++++ marmotQuic/README.md | 18 +++++ .../CurrentProfileGroupFactory.kt | 12 ++-- .../AgentTextStreamQuicPolicyV1.kt | 6 ++ .../quartz/marmot/mls/group/MlsGroup.kt | 29 ++++---- .../CurrentProfileGroupFactoryTest.kt | 24 +++---- .../mls/group/CurrentProfileWelcomeTest.kt | 72 +++++++++++++++++-- 8 files changed, 165 insertions(+), 69 deletions(-) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt index eaa69731b0..472b6d8f11 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt @@ -44,10 +44,8 @@ import androidx.compose.ui.Modifier import androidx.compose.ui.graphics.Color import androidx.compose.ui.platform.LocalContext import androidx.compose.ui.unit.dp -import androidx.lifecycle.compose.collectAsStateWithLifecycle import androidx.lifecycle.viewmodel.compose.viewModel import com.vitorpamplona.amethyst.R -import com.vitorpamplona.amethyst.commons.marmot.MarmotAgentStreamWatcher import com.vitorpamplona.amethyst.commons.resources.Res import com.vitorpamplona.amethyst.commons.resources.marmot_group_default_name import com.vitorpamplona.amethyst.ui.actions.MentionPreservingInputTransformation @@ -78,7 +76,6 @@ import com.vitorpamplona.quartz.nip01Core.core.HexKey import kotlinx.collections.immutable.ImmutableList import kotlinx.collections.immutable.persistentListOf import kotlinx.coroutines.Dispatchers -import kotlinx.coroutines.flow.MutableStateFlow import kotlinx.coroutines.launch @Composable @@ -123,31 +120,19 @@ fun MarmotGroupChatView( } } - // The live agent-preview watcher. It follows the newest kind:1200 in the - // group and folds the QUIC records behind it; a group with no stream, no - // broker candidate or no reachable broker simply never shows a preview, - // and the durable kind:9 still arrives as ordinary chat either way. - val marmot = accountViewModel.account.marmotManager - val streamScope = rememberCoroutineScope() - val streamWatcher = - remember(nostrGroupId, marmot) { - marmot?.let { - MarmotAgentStreamWatcher(it, accountViewModel.account.marmotStreamTransport, streamScope) - } - } - val streamPreview by (streamWatcher?.preview ?: remember { MutableStateFlow(null) }).collectAsStateWithLifecycle() - - // Re-check on every feed change: a kind:1200 arrives as an ordinary group - // message, so "the feed moved" is exactly when a new stream may have been - // anchored. watchLatest is idempotent for a stream already being followed. - val feedState by feedViewModel.feedState.feedContent.collectAsStateWithLifecycle() - LaunchedEffect(feedState, streamWatcher) { - streamWatcher?.watchLatest(nostrGroupId) - } - - DisposableEffect(streamWatcher) { - onDispose { streamWatcher?.stop() } - } + // The live agent-preview watcher is NOT started here. + // + // Opening the chat used to build a [MarmotAgentStreamWatcher] and call + // `watchLatest` on every feed change, which dials the QUIC brokers a + // kind:1200 advertises. Nothing in the deployed network publishes those + // streams, so that was a UDP connection attempt to a third-party endpoint + // on behalf of a feature no one is using — a service we start, not a + // capability we hold. + // + // The watcher, the transport and the banner all still exist and are still + // tested; `amy marmot stream watch` drives the same code on demand. Wiring + // it back is re-adding the watcher, the LaunchedEffect and the banner + // below, once there is something to watch. Column(Modifier.fillMaxHeight()) { Column( @@ -166,8 +151,6 @@ fun MarmotGroupChatView( ) } - AgentStreamPreviewBanner(streamPreview) - Spacer(modifier = DoubleVertSpacer) MarmotGroupMessageComposer( diff --git a/geode/src/test/kotlin/com/vitorpamplona/geode/mirror/MirrorSyncThroughputTest.kt b/geode/src/test/kotlin/com/vitorpamplona/geode/mirror/MirrorSyncThroughputTest.kt index 4df0baf4b5..63b775029e 100644 --- a/geode/src/test/kotlin/com/vitorpamplona/geode/mirror/MirrorSyncThroughputTest.kt +++ b/geode/src/test/kotlin/com/vitorpamplona/geode/mirror/MirrorSyncThroughputTest.kt @@ -81,6 +81,15 @@ import kotlin.test.Test * * Size with `-DsyncN` (default 1,000,000). Timed from first byte to the * downstream reaching the target (or plateauing). + * + * **Opt-in.** This is a benchmark, not a regression test: it preloads a + * million events and pulls them over a real WebSocket, which took 4,584 s of + * `:geode:test`'s 4,636 s total — 98.9% of the module's test time for one test + * that asserts nothing about correctness. Every other benchmark in this module + * is already gated the same way (see `perf.LoadBenchmark`), and every + * invocation documented above passes `-DsyncN` or `-DsyncSourceUrl`, so those + * still run it. A plain `./gradlew test` — which is what the pre-push hook + * runs — now skips it in milliseconds. */ class MirrorSyncThroughputTest { // geode's real relay config (deferred FTS, live negentropy index) — not the @@ -148,9 +157,30 @@ class MirrorSyncThroughputTest { return String(out) } + /** + * True when someone actually asked for a throughput number: either the + * module-wide benchmark switch, or any of this test's own sizing/source + * properties. Naming a size IS the opt-in — a run that says `-DsyncN=…` + * plainly wants the measurement and should not need a second flag. + */ + private val enabled = + System.getProperty("runLoadBenchmark") == "true" || + System.getProperty("syncN") != null || + System.getProperty("syncSourceUrl") != null + @Test fun mirrorSyncThroughput() = runBlocking { + // Bail before building anything. The old code decided nothing up + // front and spent over an hour preloading and syncing a million + // events on every ordinary test run. + if (!enabled) { + println( + "[skip] mirrorSyncThroughput — benchmark. Enable with -DrunLoadBenchmark=true, " + + "or size it directly with -DsyncN=… / -DsyncSourceUrl=…", + ) + return@runBlocking + } val n = System.getProperty("syncN")?.toInt() ?: 1_000_000 val externalUrl = System.getProperty("syncSourceUrl") val expect = System.getProperty("syncExpect")?.toInt() ?: n diff --git a/marmotQuic/README.md b/marmotQuic/README.md index 5153ec4204..f7958a27ee 100644 --- a/marmotQuic/README.md +++ b/marmotQuic/README.md @@ -107,6 +107,24 @@ amy marmot stream watch GID --stream-id … amy marmot stream finish GID --stream-id … --transcript-hash … --chunk-count N "hello" ``` +## Not wired into the app + +The implementation is complete and tested, and nothing in the app starts it. + +Nothing in the deployed network publishes agent text stream previews, so the +Android chat screen no longer builds a watcher and dials the brokers a kind:1200 +advertises, and our published KeyPackage no longer advertises component `0x8006` +or the `receive`/`send`/`fanout` role capabilities. A capability is a standing +promise to every peer that reads the KeyPackage; making one for a path nobody +exercises costs something and buys nothing. + +What that leaves: the codecs, this module, the CLI (`amy marmot stream …`) and +the interop tests all still work and still run. Turning the feature back on is +re-adding `AppComponentIds.AGENT_TEXT_STREAM_QUIC_V1` to +`CurrentProfileGroupFactory.SUPPORTED_COMPONENTS`, the three roles to +`MlsGroup.currentProfileLeafCapabilities()`, and the watcher to +`MarmotGroupChatView`. + ## Not done - The Android GUI renders previews but does not originate a stream — that is diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt index 25263a5c0c..da7bc32fd5 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt @@ -64,10 +64,13 @@ object CurrentProfileGroupFactory { * later as a group we cannot actually participate in. Add an id here only * when the component is implemented. * - * `0x8006` (agent-text-stream over QUIC) is listed for every role - * [MlsGroup.currentProfileLeafCapabilities] advertises — receive, send and - * fanout. Publishing needs durable per-stream sequence state so a restart - * cannot reuse an AEAD nonce, and that store exists. + * `0x8006` (agent-text-stream over QUIC) is deliberately absent even + * though it is implemented. Nothing in the deployed network uses the QUIC + * preview path, and this list is a promise rather than a description: a + * group may require any id we advertise, and we would then owe every peer + * behaviour for a feature no one exercises. The code stays (`:marmotQuic`, + * the codecs, `amy marmot stream`), and the id goes back on the list the + * day the feature is actually used. */ val SUPPORTED_COMPONENTS: List = listOf( @@ -78,7 +81,6 @@ object CurrentProfileGroupFactory { AppComponentIds.ADMIN_POLICY_V1, AppComponentIds.NOSTR_ROUTING_V1, AppComponentIds.MESSAGE_RETENTION_V1, - AppComponentIds.AGENT_TEXT_STREAM_QUIC_V1, AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2, AppComponentIds.GROUP_ENCRYPTED_MEDIA_V2, AppComponentIds.GROUP_LIFECYCLE_V1, diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamQuicPolicyV1.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamQuicPolicyV1.kt index 4ccaae6604..cb9e29d73a 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamQuicPolicyV1.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/agentTextStream/AgentTextStreamQuicPolicyV1.kt @@ -210,6 +210,12 @@ object AgentTextStreamRoles { const val SEND_CAPABILITY = 0xF2D2 const val FANOUT_CAPABILITY = 0xF2D4 + /** + * Every role capability, for callers that need to ask "does this leaf + * advertise any of them" without enumerating the three by hand. + */ + val ALL_CAPABILITIES = listOf(RECEIVE_CAPABILITY, SEND_CAPABILITY, FANOUT_CAPABILITY) + fun capabilityFor(role: Int): Int = when (role) { RECEIVE -> RECEIVE_CAPABILITY diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index bd24d33d1a..68e0ce27eb 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -25,7 +25,6 @@ import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds import com.vitorpamplona.quartz.marmot.appComponents.MarmotGroupState import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamCrypto import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamQuicPolicyV1 -import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRoles import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter @@ -3442,21 +3441,21 @@ class MlsGroup private constructor( listOf( AppDataDictionary.EXTENSION_TYPE, MarmotGroupData.EXTENSION_ID_INT, - // All three agent-stream roles, matching what MDK puts - // on every KeyPackage it publishes. `receive` is the - // baseline compatibility role; `send` says we can - // originate preview records, which we can now that the - // publisher, the raw-QUIC binding and the app wiring - // exist; `fanout` says records may be forwarded on our - // behalf, which is what using a broker at all means. + // The agent-stream roles (`0xF2D1` receive, `0xF2D2` + // send, `0xF2D4` fanout) are deliberately NOT here. // - // A capability is only a claim about what we support, - // not a duty to stream: a group that requires `send` - // wants members that COULD originate, and a member that - // never does is a quiet member, not a broken one. - AgentTextStreamRoles.RECEIVE_CAPABILITY, - AgentTextStreamRoles.SEND_CAPABILITY, - AgentTextStreamRoles.FANOUT_CAPABILITY, + // The implementation exists and stays — see + // [AgentTextStreamRoles] and the `:marmotQuic` module — + // but nothing in the deployed network uses the QUIC + // preview path, and an advertised capability is a + // standing promise to every peer that reads our + // KeyPackage. Advertising a role no one exercises buys + // nothing and commits us to answering for it; the + // reference KeyPackage in our own conformance vector + // does not advertise it either. + // + // Re-adding them is a one-line change once the feature + // is actually in use. ), proposals = listOf(APP_DATA_UPDATE_PROPOSAL_TYPE, SELF_REMOVE_PROPOSAL_TYPE), ) diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt index d99adc5d01..0a75465c1b 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt @@ -22,7 +22,6 @@ package com.vitorpamplona.quartz.marmot.appComponents import com.vitorpamplona.quartz.TestResourceLoader import com.vitorpamplona.quartz.marmot.appComponents.accountIdentityProof.AccountIdentityProofV2 -import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRoles import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader @@ -111,21 +110,22 @@ class CurrentProfileGroupFactoryTest { // agent-text-stream roles — the same set MDK puts on every // KeyPackage it publishes. // - // The extra entries are deliberate and are NOT drift from the MDK - // reference. A capability says "this client can handle it", and a - // group that REQUIRES 0xF2EE (legacy) or a role (any group MDK - // creates) refuses to add a leaf that does not advertise it — so - // without these a current-profile KeyPackage would be un-addable - // to every legacy group that already exists and to every group MDK - // makes. Advertising more than a group requires is always - // acceptable; advertising less is what gets a leaf rejected. + // `0xF2EE` is deliberate and is NOT drift from the MDK reference: + // a legacy group REQUIRES it, and a group refuses to add a leaf + // that does not advertise what it requires, so without it a + // current-profile KeyPackage would be un-addable to every legacy + // group that already exists. + // + // The agent-stream roles are deliberately absent. Advertising more + // than a group requires is harmless to that group but is not free: + // it is a standing claim to every peer that reads this KeyPackage, + // and nothing in the deployed network uses the QUIC preview path. + // The reference KeyPackage in `mls/marmot-current-profile.json` + // does not advertise `0x8006` either. assertEquals( listOf( AppDataDictionary.EXTENSION_TYPE, MarmotGroupData.EXTENSION_ID_INT, - AgentTextStreamRoles.RECEIVE_CAPABILITY, - AgentTextStreamRoles.SEND_CAPABILITY, - AgentTextStreamRoles.FANOUT_CAPABILITY, ), kp.leafNode.capabilities.extensions, ) diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt index 8b4288df3c..65bb2887cd 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt @@ -135,7 +135,7 @@ class CurrentProfileWelcomeTest { * admits us. */ @Test - fun aJoinerFillsEveryRoleTheProfileDefines() = + fun aLeafAdvertisingEveryRoleFillsAGroupThatRequiresThem() = runBlocking { val group = aGroup( @@ -147,7 +147,7 @@ class CurrentProfileWelcomeTest { paddingBucketBytes = 0, ), ) - val invitee = CurrentProfileGroupFactory.createKeyPackage(signer(0x66)) + val invitee = allRolesKeyPackage(signer(0x66)) group.proposeAdd(invitee.keyPackage.toTlsBytes()) val welcome = assertNotNull(group.commit().welcomeBytes) @@ -155,13 +155,71 @@ class CurrentProfileWelcomeTest { assertEquals(nostrGroupId.toHexKey(), joined.currentNostrGroupId()) } - /** A current-profile leaf with the `send` and `fanout` roles stripped. */ - private suspend fun receiveOnlyKeyPackage(signer: NostrSignerInternal): KeyPackageBundle { + /** + * Our published KeyPackage advertises NO agent-stream role, and is + * therefore refused by a group that requires one. + * + * That refusal is the deliberate cost of not advertising, so it is asserted + * rather than discovered: the implementation is still here and still + * tested, but a capability is a standing promise to every peer that reads + * the KeyPackage, and we do not make one for a path nothing uses. If this + * test starts failing because the default advertises a role again, that is + * a decision to take on purpose, not a drift to absorb. + */ + @Test + fun ourDefaultLeafAdvertisesNoStreamRoleAndIsRefusedByAGroupThatNeedsOne() = + runBlocking { + val group = aGroup(AgentTextStreamQuicPolicyV1.userToAgentDefault()) + val invitee = CurrentProfileGroupFactory.createKeyPackage(signer(0x77)) + + assertTrue( + invitee.keyPackage.leafNode.capabilities.extensions + .none { it in AgentTextStreamRoles.ALL_CAPABILITIES }, + "the default leaf must carry no agent-stream role, got ${invitee.keyPackage.leafNode.capabilities.extensions}", + ) + + group.proposeAdd(invitee.keyPackage.toTlsBytes()) + val welcome = assertNotNull(group.commit().welcomeBytes) + val failure = assertFailsWith { MlsGroup.processWelcome(welcome, invitee) } + assertTrue( + failure.message.orEmpty().contains("agent text stream roles"), + "expected a role-capability refusal, got: ${failure.message}", + ) + } + + /** A current-profile leaf carrying the `receive` role and nothing beyond it. */ + private suspend fun receiveOnlyKeyPackage(signer: NostrSignerInternal): KeyPackageBundle = keyPackageAdvertising(signer, listOf(AgentTextStreamRoles.RECEIVE_CAPABILITY)) + + /** A current-profile leaf carrying every role the profile defines. */ + private suspend fun allRolesKeyPackage(signer: NostrSignerInternal): KeyPackageBundle = + keyPackageAdvertising( + signer, + listOf( + AgentTextStreamRoles.RECEIVE_CAPABILITY, + AgentTextStreamRoles.SEND_CAPABILITY, + AgentTextStreamRoles.FANOUT_CAPABILITY, + ), + ) + + /** + * A current-profile KeyPackage whose leaf advertises exactly [roles] on top + * of the default capability set. + * + * The default set no longer carries any agent-stream role, so these tests + * build the leaf they need instead of relying on it. That is the right + * shape regardless: a test that asserted the gate through OUR default was + * really asserting the default, and stopped testing the gate the moment the + * default changed — which is exactly what happened. + */ + private suspend fun keyPackageAdvertising( + signer: NostrSignerInternal, + roles: List, + ): KeyPackageBundle { val full = CurrentProfileGroupFactory.createKeyPackage(signer) val reduced = MlsGroup.currentProfileLeafCapabilities().let { Capabilities( - extensions = it.extensions.filterNot { ext -> ext == AgentTextStreamRoles.SEND_CAPABILITY || ext == AgentTextStreamRoles.FANOUT_CAPABILITY }, + extensions = it.extensions + roles, proposals = it.proposals, ) } @@ -188,10 +246,10 @@ class CurrentProfileWelcomeTest { } @Test - fun aJoinerAcceptsAGroupRequiringOnlyTheReceiveRole() = + fun aLeafAdvertisingReceiveJoinsAGroupRequiringOnlyThatRole() = runBlocking { val group = aGroup(AgentTextStreamQuicPolicyV1.userToAgentDefault()) - val invitee = CurrentProfileGroupFactory.createKeyPackage(signer(0x55)) + val invitee = receiveOnlyKeyPackage(signer(0x55)) group.proposeAdd(invitee.keyPackage.toTlsBytes()) val welcome = assertNotNull(group.commit().welcomeBytes) From f7580c7f886c6e62c37dd0ac120bb3cf9e7c69c2 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 19:21:00 +0000 Subject: [PATCH 40/79] feat(marmot): show edits and system rows in the Android chat Two app payload kinds already round-tripped through the protocol layer and then stopped at the feed: a kind:1009 edit was indexed but nothing drew it, and a kind:1210 system row was filtered out of the message list entirely. Edits reuse the overlay rail the other chat protocols already use. `latestMarmotEdit()` picks the winner off a message's own `edits` children, and it is deliberately read-side: the transport cannot stop a member from sending a well-formed 1009 that names someone else's message, so the reader is the one that has to check the author matches. Ties on the same second resolve by event id, otherwise two devices of one account could leave two readers rendering different text for the same message forever, with neither of them wrong. `RenderConcordEditedNote` was already exactly the renderer this needs, so it loses the protocol from its name and gains a Marmot caller. System rows needed somewhere to go. `ChatFeedRowRenderer` is a hook the feed consults per item: a renderer claims a note, or the ordinary bubble draws it. That keeps a Marmot-shaped row out of the generic chat feed, which serves four other protocols. `MarmotSystemRowRenderer` reads the row's structured fields rather than its `text`, so the caption is localized here instead of being whatever string the sender happened to compose; `text` stays as the fallback for a row whose fields we cannot read. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../loggedIn/DecryptAndIndexProcessor.kt | 21 +++ .../loggedIn/chats/feed/ChatFeedView.kt | 63 +++++-- .../loggedIn/chats/feed/ChatMessageCompose.kt | 26 ++- ...derConcordEdits.kt => RenderEditedNote.kt} | 13 +- .../chats/marmotGroup/MarmotGroupChatView.kt | 4 + .../marmotGroup/MarmotSystemRowRenderer.kt | 173 ++++++++++++++++++ .../composeResources/values/strings.xml | 18 ++ .../commons/model/NoteEditOverlays.kt | 28 ++- .../model/marmotGroups/MarmotGroupList.kt | 9 +- .../commons/model/MarmotEditOverlayTest.kt | 134 ++++++++++++++ 10 files changed, 454 insertions(+), 35 deletions(-) rename amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/types/{RenderConcordEdits.kt => RenderEditedNote.kt} (86%) create mode 100644 amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotSystemRowRenderer.kt create mode 100644 commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/model/MarmotEditOverlayTest.kt diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt index 6414d19f79..4cdb1c0696 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt @@ -32,6 +32,8 @@ import com.vitorpamplona.quartz.experimental.ephemChat.chat.EphemeralChatEvent import com.vitorpamplona.quartz.marmot.GroupEventResult import com.vitorpamplona.quartz.marmot.MarmotInboundProcessor import com.vitorpamplona.quartz.marmot.WelcomeResult +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotAppEvent +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotMessageEdit import com.vitorpamplona.quartz.marmot.mip02Welcome.WelcomeEvent import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEvent import com.vitorpamplona.quartz.nip01Core.core.Event @@ -675,6 +677,25 @@ class GroupEventHandler( cache.copyRelaysFromTo(outerNote, innerEvent.id) } + // A kind:1009 edit is anchored to the message it replaces, + // exactly like a Concord edit or a reaction: the bubble reads + // `Note.edits`, and holding the edit as a hard-referenced + // child of its target is what keeps it alive as long as that + // target is. A Marmot inner event is decrypted exactly once — + // the ratchet has moved on by the time anyone could re-fetch + // it — so an edit left orphaned in the soft cache could be + // collected and never come back. + // + // The overlay's own rules (author-only, latest wins) are + // applied at render time by `Note.latestMarmotEdit`, not here: + // the target's author is not necessarily known yet when the + // edit arrives, and a link is not an endorsement. + if (innerEvent.kind == MarmotAppEvent.KIND_EDIT) { + MarmotMessageEdit.fromAppEvent(MarmotAppEvent.fromEvent(innerEvent))?.let { edit -> + cache.getOrCreateNote(edit.targetId).addEdit(innerNote) + } + } + // Track the message in the Marmot group chatroom account.marmotGroupList.addMessage(result.groupId, innerNote) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/ChatFeedView.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/ChatFeedView.kt index d3c56a6717..317608eda0 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/ChatFeedView.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/ChatFeedView.kt @@ -27,6 +27,7 @@ import androidx.compose.foundation.lazy.LazyColumn import androidx.compose.foundation.lazy.LazyListState import androidx.compose.foundation.lazy.itemsIndexed import androidx.compose.runtime.Composable +import androidx.compose.runtime.Immutable import androidx.compose.runtime.LaunchedEffect import androidx.compose.runtime.State import androidx.compose.runtime.getValue @@ -51,6 +52,23 @@ import com.vitorpamplona.amethyst.ui.theme.FeedPadding import com.vitorpamplona.quartz.nip37Drafts.DraftWrapEvent import kotlinx.coroutines.launch +/** + * A caller's own rendering for feed rows that are not chat bubbles. + * + * Marmot's kind:1210 group system rows are the case this exists for: they sit + * in the conversation in chronological order but are captions about group + * state, not messages, and rendering one as a bubble would show a reader raw + * JSON attributed to whoever committed the change. + */ +@Immutable +interface ChatFeedRowRenderer { + /** True when this renderer takes the row instead of the normal bubble. */ + fun claims(note: Note): Boolean + + @Composable + fun Render(note: Note) +} + @Composable fun RefreshingChatroomFeedView( feedContentState: FeedContentState, @@ -81,6 +99,9 @@ fun RefreshingChatroomFeedView( jumpToNoteId: State? = null, onJumpHandled: () -> Unit = {}, onWantsToEditChatMessage: ((Note) -> Unit)? = null, + // Optional per-row override for rows the caller renders itself rather than as + // a chat bubble. Null for every surface whose feed is only messages. + rowRenderer: ChatFeedRowRenderer? = null, ) { SaveableFeedState(feedContentState, scrollStateKey) { listState -> listStateObserver(listState) @@ -99,6 +120,7 @@ fun RefreshingChatroomFeedView( jumpToNoteId, onJumpHandled, onWantsToEditChatMessage, + rowRenderer, ) } } @@ -119,6 +141,7 @@ fun RenderChatFeedView( jumpToNoteId: State? = null, onJumpHandled: () -> Unit = {}, onWantsToEditChatMessage: ((Note) -> Unit)? = null, + rowRenderer: ChatFeedRowRenderer? = null, ) { val feedState by feed.feedContent.collectAsStateWithLifecycle() @@ -152,6 +175,7 @@ fun RenderChatFeedView( jumpToNoteId, onJumpHandled, onWantsToEditChatMessage, + rowRenderer, ) } } @@ -174,6 +198,7 @@ fun ChatFeedLoaded( jumpToNoteId: State? = null, onJumpHandled: () -> Unit = {}, onWantsToEditChatMessage: ((Note) -> Unit)? = null, + rowRenderer: ChatFeedRowRenderer? = null, ) { val items by loaded.feed.collectAsStateWithLifecycle() @@ -256,20 +281,30 @@ fun ChatFeedLoaded( older?.event?.createdAt, ) - ChatroomMessageCompose( - baseNote = item, - routeForLastRead = routeForLastRead, - accountViewModel = accountViewModel, - nav = nav, - onWantsToReply = onWantsToReply, - onWantsToEditDraft = onWantsToEditDraft, - onScrollToNote = onScrollToNote, - shouldHighlight = highlightedNoteId.value == item.idHex, - onHighlightFinished = { highlightedNoteId.value = null }, - groupPosition = watchChatGroupPosition(newer, item, older), - previousNoteId = older?.idHex, - onWantsToEditChatMessage = onWantsToEditChatMessage, - ) + // A claimed row is rendered by the caller instead of as a + // bubble. The date divisor above still applies — a system + // row belongs under the day it happened on like anything + // else — which is why the claim is checked here and not + // around the whole item. + val claimed = rowRenderer?.takeIf { it.claims(item) } + if (claimed != null) { + claimed.Render(item) + } else { + ChatroomMessageCompose( + baseNote = item, + routeForLastRead = routeForLastRead, + accountViewModel = accountViewModel, + nav = nav, + onWantsToReply = onWantsToReply, + onWantsToEditDraft = onWantsToEditDraft, + onScrollToNote = onScrollToNote, + shouldHighlight = highlightedNoteId.value == item.idHex, + onHighlightFinished = { highlightedNoteId.value = null }, + groupPosition = watchChatGroupPosition(newer, item, older), + previousNoteId = older?.idHex, + onWantsToEditChatMessage = onWantsToEditChatMessage, + ) + } } } } diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/ChatMessageCompose.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/ChatMessageCompose.kt index 49d7723bca..f3f32961c3 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/ChatMessageCompose.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/ChatMessageCompose.kt @@ -48,6 +48,7 @@ import androidx.compose.ui.unit.dp import com.vitorpamplona.amethyst.commons.model.Note import com.vitorpamplona.amethyst.commons.model.latestBuzzEdit import com.vitorpamplona.amethyst.commons.model.latestConcordEdit +import com.vitorpamplona.amethyst.commons.model.latestMarmotEdit import com.vitorpamplona.amethyst.ui.components.LocalInlineQuoteRenderer import com.vitorpamplona.amethyst.ui.navigation.navs.INav import com.vitorpamplona.amethyst.ui.navigation.routes.routeFor @@ -67,8 +68,8 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderChan import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderChatClip import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderChatRaid import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderChatZap -import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderConcordEditedNote import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderDraftEvent +import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderEditedNote import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderEncryptedFile import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderMarmotEncryptedMedia import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderRegularTextNote @@ -81,6 +82,7 @@ import com.vitorpamplona.quartz.buzz.stream.StreamMessageDiffEvent import com.vitorpamplona.quartz.buzz.stream.StreamMessageEditEvent import com.vitorpamplona.quartz.buzz.stream.SystemMessageEvent import com.vitorpamplona.quartz.concord.cord03Channels.ConcordChatEditEvent +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotAppEvent import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip04Dm.messages.PrivateDmEvent import com.vitorpamplona.quartz.nip10Notes.BaseNoteEvent @@ -621,14 +623,20 @@ fun NoteRow( note.event is ChatMessageEncryptedFileHeaderEvent -> RenderEncryptedFile(note, bgColor, accountViewModel, nav) hasMip04Media(note.event) -> RenderMarmotEncryptedMedia(note, bgColor, accountViewModel, nav) else -> { - // Concord and Buzz channels overlay edits on their messages (kind-3302 and - // kind-40003): when one exists, render the newest edit's content instead of the - // stale original. One observer for both — a message is only ever one kind, so a - // single edits-flow collector per row covers both (and is null for other surfaces). + // Concord, Buzz and Marmot all overlay edits on their messages (kinds 3302, + // 40003 and 1009): when one exists, render the winning edit's content instead of + // the stale original. One observer for all three — a message is only ever one + // kind, so a single edits-flow collector per row covers them (and is null for + // other surfaces). val edit = observeChatEdit(note) - when (edit?.event) { - is ConcordChatEditEvent -> RenderConcordEditedNote(note, edit, canPreview, innerQuote, bgColor, accountViewModel, nav) - is StreamMessageEditEvent -> RenderBuzzEditedNote(note, edit, canPreview, innerQuote, bgColor, accountViewModel, nav) + val editEvent = edit?.event + when { + editEvent is ConcordChatEditEvent -> RenderEditedNote(note, edit, canPreview, innerQuote, bgColor, accountViewModel, nav) + editEvent is StreamMessageEditEvent -> RenderBuzzEditedNote(note, edit, canPreview, innerQuote, bgColor, accountViewModel, nav) + // A Marmot edit is a plain inner app event, not a typed + // class, so it is matched on its kind rather than its type. + editEvent != null && editEvent.kind == MarmotAppEvent.KIND_EDIT -> + RenderEditedNote(note, edit, canPreview, innerQuote, bgColor, accountViewModel, nav) else -> RenderRegularTextNote(note, canPreview, innerQuote, bgColor, accountViewModel, nav) } } @@ -646,7 +654,7 @@ fun observeChatEdit(note: Note): Note? { val latest by produceState(initialValue = null, note.idHex) { note.flow().edits.stateFlow.collect { - value = note.latestConcordEdit() ?: note.latestBuzzEdit() + value = note.latestConcordEdit() ?: note.latestBuzzEdit() ?: note.latestMarmotEdit() } } return latest diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/types/RenderConcordEdits.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/types/RenderEditedNote.kt similarity index 86% rename from amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/types/RenderConcordEdits.kt rename to amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/types/RenderEditedNote.kt index 0a877d54eb..c2a86864b8 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/types/RenderConcordEdits.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/types/RenderEditedNote.kt @@ -40,12 +40,17 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel import com.vitorpamplona.amethyst.ui.stringRes /** - * A Concord chat message whose content has been superseded by a kind-3302 edit: - * renders the NEWEST edit's content (never the stale original) plus an "(edited)" - * marker, matching the Concord reference client's last-write-wins presentation. + * A chat message whose content has been superseded by an edit: renders the + * WINNING edit's content (never the stale original) plus an "(edited)" marker. + * + * Which edit wins is decided per surface before this is called — Concord by + * CORD-02 send time, Marmot by `created_at` with an event-id tie-break — and is + * always author-only. The rendering itself has nothing surface-specific in it: + * an edit is a body plus its own tags, so the content, the custom emoji and the + * mentions all come off the edit rather than the original. */ @Composable -fun RenderConcordEditedNote( +fun RenderEditedNote( note: Note, editNote: Note, canPreview: Boolean, diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt index 472b6d8f11..3b7b7b3966 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt @@ -148,6 +148,10 @@ fun MarmotGroupChatView( routeForLastRead = marmotGroupLastReadRoute(nostrGroupId), onWantsToReply = { note -> newMessageModel.reply(note) }, onWantsToEditDraft = { }, + // kind:1210 rows sit in the conversation in order but are + // group-state captions rather than messages, so they get their + // own centered style instead of a bubble. + rowRenderer = remember(accountViewModel) { MarmotSystemRowRenderer(accountViewModel) }, ) } diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotSystemRowRenderer.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotSystemRowRenderer.kt new file mode 100644 index 0000000000..956b2b5256 --- /dev/null +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotSystemRowRenderer.kt @@ -0,0 +1,173 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup + +import androidx.compose.foundation.layout.Arrangement +import androidx.compose.foundation.layout.Row +import androidx.compose.foundation.layout.fillMaxWidth +import androidx.compose.foundation.layout.padding +import androidx.compose.material3.MaterialTheme +import androidx.compose.material3.Text +import androidx.compose.runtime.Composable +import androidx.compose.runtime.remember +import androidx.compose.ui.Modifier +import androidx.compose.ui.text.style.TextAlign +import androidx.compose.ui.unit.dp +import androidx.compose.ui.unit.sp +import com.vitorpamplona.amethyst.commons.model.Note +import com.vitorpamplona.amethyst.commons.resources.Res +import com.vitorpamplona.amethyst.commons.resources.marmot_system_admin_added +import com.vitorpamplona.amethyst.commons.resources.marmot_system_admin_added_passive +import com.vitorpamplona.amethyst.commons.resources.marmot_system_admin_removed +import com.vitorpamplona.amethyst.commons.resources.marmot_system_admin_removed_passive +import com.vitorpamplona.amethyst.commons.resources.marmot_system_avatar_changed +import com.vitorpamplona.amethyst.commons.resources.marmot_system_avatar_changed_passive +import com.vitorpamplona.amethyst.commons.resources.marmot_system_group_disbanded +import com.vitorpamplona.amethyst.commons.resources.marmot_system_group_disbanded_passive +import com.vitorpamplona.amethyst.commons.resources.marmot_system_group_renamed +import com.vitorpamplona.amethyst.commons.resources.marmot_system_group_renamed_passive +import com.vitorpamplona.amethyst.commons.resources.marmot_system_member_added +import com.vitorpamplona.amethyst.commons.resources.marmot_system_member_added_passive +import com.vitorpamplona.amethyst.commons.resources.marmot_system_member_left +import com.vitorpamplona.amethyst.commons.resources.marmot_system_member_removed +import com.vitorpamplona.amethyst.commons.resources.marmot_system_member_removed_passive +import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel +import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.ChatFeedRowRenderer +import com.vitorpamplona.amethyst.ui.stringRes +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotAppEvent +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotSystemEvent +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotSystemType +import org.jetbrains.compose.resources.StringResource + +/** + * Renders a kind:1210 group system row as a centered caption. + * + * These are not chat and must not read like it. A row is derived locally from + * canonical group state rather than received as a message, so it has no sender + * to attribute a bubble to — and its `content` is JSON, which a chat bubble + * would render verbatim. + * + * The caption is built from the row's STRUCTURED fields, with its `text` member + * used only as a fallback. That ordering is the spec's ("Clients SHOULD render + * from the structured fields instead") and it is what lets the same row read in + * the viewer's own terms rather than the writer's. + */ +class MarmotSystemRowRenderer( + private val accountViewModel: AccountViewModel, +) : ChatFeedRowRenderer { + override fun claims(note: Note): Boolean = note.event?.kind == MarmotAppEvent.KIND_SYSTEM + + @Composable + override fun Render(note: Note) { + val event = note.event ?: return + val row = remember(event.id) { MarmotSystemEvent.fromAppEvent(MarmotAppEvent.fromEvent(event)) } + // An unknown `system_type` decodes to null rather than throwing, because + // the registry grows and an unfamiliar row must not break the feed. There + // is nothing honest to draw for one, so it is simply not drawn. + if (row == null) return + val caption = caption(row) + // A two-party row with no subject has nothing true to say; the spec's + // fallback text would be a generic label, not information. + if (caption.isEmpty()) return + + Row( + modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp, vertical = 6.dp), + horizontalArrangement = Arrangement.Center, + ) { + Text( + text = caption, + textAlign = TextAlign.Center, + fontSize = 12.sp, + style = MaterialTheme.typography.labelSmall, + color = MaterialTheme.colorScheme.onSurfaceVariant, + ) + } + } + + /** + * The row in words, naming people rather than pubkeys where we know them. + * + * Each type has an active and a passive phrasing: the actor is optional — + * a row derived from a commit whose committer we cannot attribute is still + * a true row — so "who did it" is never assumed. The row's own `text` + * member is the last fallback, which is what it exists for. + */ + @Composable + private fun caption(row: MarmotSystemEvent): String { + val actor = row.actor?.let { displayName(it) } + val subject = row.subject?.let { displayName(it) } + return when (row.systemType) { + MarmotSystemType.MEMBER_ADDED -> + twoParty(subject, actor, Res.string.marmot_system_member_added, Res.string.marmot_system_member_added_passive) + + MarmotSystemType.MEMBER_REMOVED -> + twoParty(subject, actor, Res.string.marmot_system_member_removed, Res.string.marmot_system_member_removed_passive) + + MarmotSystemType.MEMBER_LEFT -> + subject?.let { stringRes(Res.string.marmot_system_member_left, it) } ?: row.text + + MarmotSystemType.ADMIN_ADDED -> + twoParty(subject, actor, Res.string.marmot_system_admin_added, Res.string.marmot_system_admin_added_passive) + + MarmotSystemType.ADMIN_REMOVED -> + twoParty(subject, actor, Res.string.marmot_system_admin_removed, Res.string.marmot_system_admin_removed_passive) + + MarmotSystemType.GROUP_RENAMED -> + row.name?.let { name -> + if (actor != null) { + stringRes(Res.string.marmot_system_group_renamed, actor, name) + } else { + stringRes(Res.string.marmot_system_group_renamed_passive, name) + } + } ?: row.text + + MarmotSystemType.GROUP_AVATAR_CHANGED -> + actor?.let { stringRes(Res.string.marmot_system_avatar_changed, it) } + ?: stringRes(Res.string.marmot_system_avatar_changed_passive) + + MarmotSystemType.GROUP_DISBANDED -> + actor?.let { stringRes(Res.string.marmot_system_group_disbanded, it) } + ?: stringRes(Res.string.marmot_system_group_disbanded_passive) + } + } + + /** + * A row about one member, phrased actively when the committer is known and + * passively when it is not. + */ + @Composable + private fun twoParty( + subject: String?, + actor: String?, + active: StringResource, + passive: StringResource, + ): String { + if (subject == null) return "" + return if (actor != null) stringRes(active, actor, subject) else stringRes(passive, subject) + } + + /** A known display name, or a short key when the account is a stranger. */ + @Composable + private fun displayName(pubkeyHex: String): String { + val user = accountViewModel.getUserIfExists(pubkeyHex) + return user?.toBestDisplayName() ?: pubkeyHex.take(8) + } +} diff --git a/commons/src/commonMain/composeResources/values/strings.xml b/commons/src/commonMain/composeResources/values/strings.xml index 6ad3c345df..ab2fee6cfd 100644 --- a/commons/src/commonMain/composeResources/values/strings.xml +++ b/commons/src/commonMain/composeResources/values/strings.xml @@ -2648,6 +2648,24 @@ Enter group description (optional) Changes will be committed to the group via MLS and propagated to all members. Group icon + + %1$s added %2$s + %1$s joined + %1$s removed %2$s + %1$s was removed + %1$s left + %1$s made %2$s an admin + %1$s is now an admin + %1$s removed %2$s as an admin + %1$s is no longer an admin + %1$s renamed the group to %2$s + The group was renamed to %1$s + %1$s changed the group avatar + The group avatar changed + %1$s disbanded the group + The group was disbanded Remove photo KeyPackage Relays not set You don't have a KeyPackage Relay List yet (MIP-00). This list tells other people where your KeyPackage is published so they can invite you to group chats.\n\nUse your current outbox relays for this? diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/NoteEditOverlays.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/NoteEditOverlays.kt index 0e177af03b..0a97168e81 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/NoteEditOverlays.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/NoteEditOverlays.kt @@ -24,6 +24,7 @@ import com.vitorpamplona.amethyst.commons.model.Note import com.vitorpamplona.quartz.buzz.stream.StreamMessageEditEvent import com.vitorpamplona.quartz.concord.cord03Channels.ConcordChatEditEvent import com.vitorpamplona.quartz.experimental.edits.TextNoteModificationEvent +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotAppEvent import com.vitorpamplona.quartz.nip40Expiration.isExpirationBefore import com.vitorpamplona.quartz.utils.TimeUtils @@ -33,9 +34,9 @@ import com.vitorpamplona.quartz.utils.TimeUtils * in-memory folds — no cache scan, no LocalCache state involved, which is why they live on the * note rather than the cache. * - * All three kinds apply ONLY edits authored by the edited note's own author: the send side gates - * editing to your own messages, and neither the relay (Buzz) nor an encrypted-plane peer (Concord) - * is trusted to enforce that, so a foreign-authored edit never rewrites your message. + * All four kinds apply ONLY edits authored by the edited note's own author: the send side gates + * editing to your own messages, and neither the relay (Buzz) nor an encrypted-plane peer (Concord, + * Marmot) is trusted to enforce that, so a foreign-authored edit never rewrites your message. */ /** @@ -61,6 +62,27 @@ fun Note.latestBuzzEdit(): Note? { .maxWithOrNull(compareBy({ it.createdAt() ?: 0L }, { it.idHex })) } +/** + * The kind-1009 Marmot edit overlaying this message, or null. + * + * Marmot fixes both halves of this rule in `foundation/application-messages.md` + * ("Message edits"): only the original author's account may replace a message, + * and the latest `created_at` wins with the event id breaking a tie. The + * tie-break is not decoration — two devices of one account can stamp the same + * second, and without it two readers would render different text for the same + * message forever. + * + * Authorship is by ACCOUNT, which is what `author?.pubkeyHex` already is for a + * Marmot inner event: a second device of the same account holds a different MLS + * leaf but the same account key, and may edit its own account's message. + */ +fun Note.latestMarmotEdit(): Note? { + val authorHex = author?.pubkeyHex ?: return null + return edits + .filter { it.author?.pubkeyHex == authorHex && it.event?.kind == MarmotAppEvent.KIND_EDIT } + .maxWithOrNull(compareBy({ it.createdAt() ?: 0L }, { it.idHex })) +} + /** The kind-3302 Concord edit overlaying this message, or null — author-only, newest by CORD-02 §4 send time. */ fun Note.latestConcordEdit(): Note? { val authorHex = author?.pubkeyHex ?: return null diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt index 2e45d96d63..b0927b5aab 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt @@ -139,9 +139,10 @@ class MarmotGroupList( * payload is routing metadata with an empty body, so it would render as * a blank bubble. What a reader sees is the live preview and then the * authoritative kind:9. - * - **1210 system rows** are group-state captions, not messages. They are - * held back here rather than shown as a bubble of JSON; a renderer with - * a system-row style can surface them from the same log. + * 1210 system rows are NOT in this list. They are group-state captions + * rather than messages, but they belong in the conversation in + * chronological order, so the feed carries them and the renderer gives + * them their own style instead of a chat bubble. */ private fun isDisplayableFeedMessage(msg: Note): Boolean { val kind = msg.event?.kind ?: return true @@ -153,7 +154,6 @@ class MarmotGroupList( private const val MARMOT_INNER_KIND_REACTION = 7 private const val MARMOT_INNER_KIND_EDIT = 1009 private const val MARMOT_INNER_KIND_STREAM_START = 1200 - private const val MARMOT_INNER_KIND_SYSTEM = 1210 private val NON_CHAT_INNER_KINDS = setOf( @@ -161,7 +161,6 @@ class MarmotGroupList( MARMOT_INNER_KIND_REACTION, MARMOT_INNER_KIND_EDIT, MARMOT_INNER_KIND_STREAM_START, - MARMOT_INNER_KIND_SYSTEM, ) } } diff --git a/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/model/MarmotEditOverlayTest.kt b/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/model/MarmotEditOverlayTest.kt new file mode 100644 index 0000000000..a08737f820 --- /dev/null +++ b/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/model/MarmotEditOverlayTest.kt @@ -0,0 +1,134 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.model + +import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotAppEvent +import com.vitorpamplona.quartz.nip01Core.core.Event +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertNull + +/** + * The kind-1009 overlay rule, resolved off a message's own [Note.edits]. + * + * Both halves are read-side on purpose: a sender cannot be trusted to have + * applied them, and this is the only place the app decides which text a reader + * actually sees. + */ +class MarmotEditOverlayTest { + private val alice = "a".repeat(64) + private val bob = "b".repeat(64) + + private val context = UserContext { addr -> AddressableNote(addr) } + + private fun user(pubkey: String) = User(pubkey, context) + + private fun event( + id: String, + pubkey: String, + kind: Int, + content: String, + createdAt: Long, + targetId: String? = null, + ) = Event( + id = id, + pubKey = pubkey, + createdAt = createdAt, + kind = kind, + tags = targetId?.let { arrayOf(arrayOf("e", it)) } ?: emptyArray(), + content = content, + sig = "", + ) + + private fun note(event: Event): Note = Note(event.id).also { it.loadEvent(event, user(event.pubKey), emptyList()) } + + private fun target(): Note = note(event("0".repeat(64), alice, MarmotAppEvent.KIND_CHAT, "frist post", 1_800_000_000L)) + + private fun edit( + id: String, + author: String, + content: String, + createdAt: Long, + targetId: String = "0".repeat(64), + ) = note(event(id, author, MarmotAppEvent.KIND_EDIT, content, createdAt, targetId)) + + @Test + fun `an unedited message has no overlay`() { + assertNull(target().latestMarmotEdit()) + } + + @Test + fun `the author's own edit overlays their message`() { + val message = target() + message.addEdit(edit("1".repeat(64), alice, "first post", 1_800_000_100L)) + assertEquals("first post", message.latestMarmotEdit()?.event?.content) + } + + @Test + fun `an edit by another account is ignored`() { + // Only the original author may replace their words. The transport + // cannot enforce this — any member can send a well-formed 1009 naming + // someone else's message — so the reader has to. + val message = target() + message.addEdit(edit("2".repeat(64), bob, "not mine", 1_800_000_100L)) + assertNull(message.latestMarmotEdit()) + } + + @Test + fun `the latest edit wins`() { + val message = target() + message.addEdit(edit("1".repeat(64), alice, "v2", 1_800_000_100L)) + message.addEdit(edit("2".repeat(64), alice, "v3", 1_800_000_300L)) + message.addEdit(edit("3".repeat(64), alice, "v2b", 1_800_000_200L)) + assertEquals("v3", message.latestMarmotEdit()?.event?.content) + } + + @Test + fun `a same-second pair resolves by event id, identically for every reader`() { + // Two devices of one account can stamp the same second. Without a + // deterministic tie-break two readers would render different text for + // the same message forever, and neither would be wrong. + val stamp = 1_800_000_100L + val ascending = target() + ascending.addEdit(edit("1".repeat(64), alice, "from device A", stamp)) + ascending.addEdit(edit("f".repeat(64), alice, "from device B", stamp)) + + val descending = target() + descending.addEdit(edit("f".repeat(64), alice, "from device B", stamp)) + descending.addEdit(edit("1".repeat(64), alice, "from device A", stamp)) + + assertEquals("from device B", ascending.latestMarmotEdit()?.event?.content) + assertEquals( + ascending.latestMarmotEdit()?.event?.content, + descending.latestMarmotEdit()?.event?.content, + "insertion order must not decide the winner", + ) + } + + @Test + fun `a non-edit child is not an overlay`() { + // `edits` is a general child list; a reaction or any other kind + // anchored to the message must not be read as replacement text. + val message = target() + message.addEdit(note(event("4".repeat(64), alice, 7, "🍕", 1_800_000_400L))) + assertNull(message.latestMarmotEdit()) + } +} From 9b8729db22ad7f269d34441f01adeff90ac3f710 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 20:00:35 +0000 Subject: [PATCH 41/79] feat(marmot): push token gossip in the shape the spec adopted MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Kind 451 had no callers, and the reason turned out to be everything around it: the 447/448/449 events in this tree were the exploratory shape the spec now names as not interoperable — tokens in `token` tags with empty content, the sender's leaf implicit, no removals at all, and no owner authentication. The token encryption derived its key from the old `mip05-v1` salt, and the 446 trigger still carried the `encoding` tag the adopted rumor dropped. Wiring the proof into that would have produced records no peer can read. So the gossip is now content-JSON under `marmot-push-v1`, and the version string is the gate: the old value is refused rather than translated, because the two versions are not predecessor and successor. The design the rewrite is really about is owner authentication. A record's authority comes from its own `owner_sig` and current membership, never from who carried it — which is what lets one member relay another's records so a group converges without every owner being online, while stopping the relayer from repointing, re-signing or restamping what it carries. `PushSignedRecord` is the canonical byte string that makes both halves computable; it uses the spec's fixed-width fields rather than this codebase's usual QUIC varints, which look identical locally and are wrong on the wire. The part that costs real machinery is revocation. A removal does not merely delete: it leaves a tombstone at its own `(owner_ts, digest)` stamp, and that stamp has to be durable. Any current member can re-emit a revoked but still validly-signed record in a fresh kind 448 at any later epoch, so its carrying epoch is unbounded and no retained-message window can bound it. The stored stamp is the only thing that recognises such a record as stale, which is why `MarmotPushStateStore` exists and why Amethyst backs it with a file. Everything here is advisory end to end. A bad entry, an unverifiable signature, a stale list — each drops on its own and none of it may reach the validity of the kind:445 that carried it. The decoders return what they could read instead of throwing, and the coordinator catches at its boundary, so a surprise cannot escape into ingest. Not wired: announcing a token of our own. That needs Amethyst's own notification-server public key, which is a deployment decision rather than something the protocol discovers — a server can only wake the app whose push credentials it holds. Until it exists this client participates correctly in other members' routing and announces nothing. MDK's `wn` exposes no push commands, so the harness cannot drive this against the reference. Coverage is the spec's published removal fixture, byte-layout assertions written independently of the encoder, and the ordering and tombstone rules. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../vitorpamplona/amethyst/model/Account.kt | 21 + .../model/accountsCache/AccountCacheState.kt | 15 + .../model/marmot/AndroidPushStateStore.kt | 116 +++++ .../loggedIn/DecryptAndIndexProcessor.kt | 30 ++ .../commons/marmot/MarmotPushCoordinator.kt | 432 ++++++++++++++++++ .../model/marmotGroups/MarmotGroupList.kt | 10 + .../marmot/MarmotEditsAndSystemRowsTest.kt | 79 ---- .../marmot/MarmotPushCoordinatorTest.kt | 318 +++++++++++++ .../commons/marmot/MarmotTestStores.kt | 108 +++++ .../MarmotPushStateStore.kt | 202 ++++++++ .../NotificationRequestEvent.kt | 70 ++- .../{TagArrayBuilderExt.kt => PushBase64.kt} | 28 +- .../mip05PushNotifications/PushGossip.kt | 225 +++++++++ .../mip05PushNotifications/PushOwnerProof.kt | 34 +- .../mip05PushNotifications/PushPlatform.kt | 46 ++ .../PushRecordOrdering.kt | 67 +++ .../mip05PushNotifications/PushRecordStore.kt | 177 +++++++ .../PushSignedRecord.kt | 191 ++++++++ .../mip05PushNotifications/PushTokenEntry.kt | 223 +++++++++ .../marmot/mip05PushNotifications/README.md | 106 +++++ .../mip05PushNotifications/TagArrayExt.kt | 6 - .../mip05PushNotifications/TokenEncryption.kt | 48 +- .../mip05PushNotifications/TokenListEvent.kt | 35 +- .../TokenRemovalEvent.kt | 31 +- .../TokenRequestEvent.kt | 36 +- .../mip05PushNotifications/tags/TokenTag.kt | 86 ---- .../mip05PushNotifications/tags/VersionTag.kt | 12 +- .../mip05PushNotifications/PushGossipTest.kt | 184 ++++++++ .../PushOwnerProofTest.kt | 61 +++ .../PushRecordStoreTest.kt | 295 ++++++++++++ .../PushSignedRecordTest.kt | 202 ++++++++ 31 files changed, 3221 insertions(+), 273 deletions(-) create mode 100644 amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidPushStateStore.kt create mode 100644 commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPushCoordinator.kt create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPushCoordinatorTest.kt create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotTestStores.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/MarmotPushStateStore.kt rename quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/{TagArrayBuilderExt.kt => PushBase64.kt} (58%) create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushGossip.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushPlatform.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushRecordOrdering.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushRecordStore.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushSignedRecord.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushTokenEntry.kt create mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/README.md delete mode 100644 quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/tags/TokenTag.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushGossipTest.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushRecordStoreTest.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushSignedRecordTest.kt diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt index d9f9dcb97b..f46871d4c1 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt @@ -33,6 +33,7 @@ import com.vitorpamplona.amethyst.commons.connectedApps.signers.NostrSignerPermi import com.vitorpamplona.amethyst.commons.defaults.Constants import com.vitorpamplona.amethyst.commons.marmot.MarmotManager import com.vitorpamplona.amethyst.commons.marmot.MarmotPublisher +import com.vitorpamplona.amethyst.commons.marmot.MarmotPushCoordinator import com.vitorpamplona.amethyst.commons.model.AddressableNote import com.vitorpamplona.amethyst.commons.model.IAccount import com.vitorpamplona.amethyst.commons.model.Note @@ -390,6 +391,12 @@ class Account( * backdated gift wrap is re-unwrapped on every sync. */ val marmotIngestDedupStore: com.vitorpamplona.quartz.marmot.MarmotIngestDedupStore? = null, + /** + * Durable push token records, stamps and tombstones. Null means a restart + * forgets every tombstone, so a relayed but revoked token record can win + * once and start waking a device its owner asked to be forgotten. + */ + val marmotPushStateStore: com.vitorpamplona.quartz.marmot.mip05PushNotifications.MarmotPushStateStore? = null, val powQueue: () -> PoWPublishQueue? = { null }, relayAuthPermissionStore: RelayAuthPermissionStore = InMemoryRelayAuthPermissionStore(), signerPermissionStore: NostrSignerPermissionStore = InMemoryNostrSignerPermissionStore(), @@ -956,6 +963,20 @@ class Account( ) } + /** + * Push token gossip (`features/push-notifications.md`) for the groups this + * account is in. + * + * Present whenever Marmot itself is, because CONSUMING gossip costs nothing + * and is what lets this client answer a peer's kind:447 later. Producing a + * record of our own is a separate decision: it needs a device token and a + * notification server public key, neither of which the protocol discovers. + */ + val marmotPushCoordinator: MarmotPushCoordinator? = + marmotManager?.let { + marmotPushStateStore?.let { store -> MarmotPushCoordinator(it, store) } ?: MarmotPushCoordinator(it) + } + /** * Raw QUIC for agent text stream previews (`transports/quic.md`). * diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/accountsCache/AccountCacheState.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/accountsCache/AccountCacheState.kt index 4a8f0f0b0a..75c45dcd4b 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/accountsCache/AccountCacheState.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/accountsCache/AccountCacheState.kt @@ -37,6 +37,7 @@ import com.vitorpamplona.amethyst.model.marmot.AndroidKeyPackageBundleStore import com.vitorpamplona.amethyst.model.marmot.AndroidMarmotMessageStore import com.vitorpamplona.amethyst.model.marmot.AndroidMlsGroupStateStore import com.vitorpamplona.amethyst.model.marmot.AndroidPublishObligationStore +import com.vitorpamplona.amethyst.model.marmot.AndroidPushStateStore import com.vitorpamplona.amethyst.service.location.LocationState import com.vitorpamplona.amethyst.service.relayClient.authCommand.model.DataStoreRelayAuthPermissionStore import com.vitorpamplona.quartz.nip01Core.core.HexKey @@ -294,6 +295,19 @@ class AccountCacheState( null } + val marmotPushStateStore = + try { + AndroidPushStateStore(accountDir) + } catch (e: Exception) { + Log.e( + "AccountCacheState", + "Failed to initialize AndroidPushStateStore " + + "(a revoked push token could be resurrected by a relayed token list after a restart)", + e, + ) + null + } + // Per-account NIP-42 ALLOW/DENY overrides live in this account's own dir, so a DENY for one // account never leaks into another (the store used to be a single app-wide file). val relayAuthPermissionStore = DataStoreRelayAuthPermissionStore(accountDir) @@ -321,6 +335,7 @@ class AccountCacheState( marmotKeyPackageStore = marmotKeyPackageStore, marmotPublishObligationStore = marmotPublishObligationStore, marmotIngestDedupStore = marmotIngestDedupStore, + marmotPushStateStore = marmotPushStateStore, powQueue = powQueue, relayAuthPermissionStore = relayAuthPermissionStore, signerPermissionStore = signerPermissionStore, diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidPushStateStore.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidPushStateStore.kt new file mode 100644 index 0000000000..e5ca421806 --- /dev/null +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidPushStateStore.kt @@ -0,0 +1,116 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.model.marmot + +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.MarmotPushStateStore +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.utils.Log +import kotlinx.coroutines.Dispatchers +import kotlinx.coroutines.sync.Mutex +import kotlinx.coroutines.sync.withLock +import kotlinx.coroutines.withContext +import java.io.File + +/** + * Android implementation of [MarmotPushStateStore] — one JSON file per group + * under `/marmot_push/.json`. + * + * Durability is the whole point of this class. A push tombstone is the only + * lasting record that a token was revoked: any current member can re-emit a + * revoked-but-still-signed record in a fresh kind `448` at any later epoch, and + * a client that forgot the tombstone would accept it and start waking a device + * its owner asked to be forgotten. So this survives restarts, and it is not + * bounded by any wall clock, `owner_ts` or epoch count — a key is cleared only + * by a strictly newer registration, or by its leaf leaving the group. + * + * Not encrypted, deliberately: the file holds tokens already encrypted to a + * notification server this device cannot read, plus public routing. A failure + * to decrypt would cost a tombstone, which is worse than the file being + * readable by a process that has already broken out of the app sandbox. + */ +class AndroidPushStateStore( + private val rootDir: File, +) : MarmotPushStateStore { + private val mutex = Mutex() + + private fun dir(): File = File(rootDir, "marmot_push") + + /** + * A group id is 32 hex characters from the protocol, but it reaches here as + * a plain string, so anything that is not hex is refused rather than turned + * into a path. + */ + private fun file(nostrGroupId: HexKey): File? { + if (nostrGroupId.isEmpty() || !nostrGroupId.all { it in '0'..'9' || it in 'a'..'f' || it in 'A'..'F' }) return null + return File(dir(), "$nostrGroupId.json") + } + + override suspend fun load(nostrGroupId: HexKey): String? = + withContext(Dispatchers.IO) { + mutex.withLock { + try { + file(nostrGroupId)?.takeIf { it.exists() }?.readText() + } catch (e: Exception) { + Log.w(TAG, "could not read push state for $nostrGroupId: ${e.message}", e) + null + } + } + } + + override suspend fun save( + nostrGroupId: HexKey, + state: String, + ) = withContext(Dispatchers.IO) { + mutex.withLock { + val target = file(nostrGroupId) ?: return@withLock + try { + target.parentFile?.mkdirs() + // Write-then-rename: a half-written state file would silently + // drop tombstones, and a lost tombstone is exactly the failure + // this store exists to prevent. + val temp = File(target.parentFile, "${target.name}.tmp") + temp.writeText(state) + if (!temp.renameTo(target)) { + target.writeText(state) + temp.delete() + } + } catch (e: Exception) { + Log.w(TAG, "could not persist push state for $nostrGroupId: ${e.message}", e) + } + } + } + + override suspend fun clear(nostrGroupId: HexKey) = + withContext(Dispatchers.IO) { + mutex.withLock { + try { + file(nostrGroupId)?.delete() + } catch (e: Exception) { + Log.w(TAG, "could not clear push state for $nostrGroupId: ${e.message}", e) + } + Unit + } + } + + companion object { + private const val TAG = "AndroidPushStateStore" + } +} diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt index 4cdb1c0696..cb5e51da5c 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt @@ -696,6 +696,36 @@ class GroupEventHandler( } } + // Push token gossip (kinds 447/448/449) is routing data for + // a notification server, addressed to the other members' + // clients rather than to the people in the room. It still + // reaches the feed's dedupe and cache paths above like any + // inner event — `MarmotGroupList` is what keeps it off the + // screen — but its meaning is applied here. + // + // Everything this call does is advisory: a malformed entry, + // a signature that does not verify, a list that lost its + // ordering race are all dropped on their own and none of + // them may reach the validity of the kind:445 that carried + // them. That is why it neither throws nor is checked. + account.marmotPushCoordinator?.let { push -> + push.apply(result.groupId, innerEvent) + // A peer asking for records gets our view, once. We + // answer with the records we hold — including other + // members' — with their owner signatures untouched, so + // a member who has been offline can be caught up by + // whoever happens to be around. + if (push.isTokenRequest(innerEvent) && innerEvent.pubKey != account.signer.pubKey) { + push.buildTokenList(result.groupId)?.let { response -> + account.marmot.sendMarmotGroupMessage( + result.groupId, + response, + account.marmot.marmotGroupRelays(result.groupId), + ) + } + } + } + // Track the message in the Marmot group chatroom account.marmotGroupList.addMessage(result.groupId, innerNote) diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPushCoordinator.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPushCoordinator.kt new file mode 100644 index 0000000000..7ef8b389f8 --- /dev/null +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPushCoordinator.kt @@ -0,0 +1,432 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.InMemoryPushStateStore +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.MarmotPushStateStore +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.NotificationRequestEvent +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushBase64 +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushGossip +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushOwnerProof +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushPlatform +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushRecordKind +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushRecordStore +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushRemovalEntry +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushSignedRecord +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushStateCodec +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushTokenEntry +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.TokenEncryption +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.TokenListEvent +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.TokenRemovalEvent +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.TokenRequestEvent +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.Nip01Crypto +import com.vitorpamplona.quartz.nip01Core.signers.EventTemplate +import com.vitorpamplona.quartz.nip59Giftwrap.rumors.RumorAssembler +import com.vitorpamplona.quartz.utils.Log +import com.vitorpamplona.quartz.utils.RandomInstance +import com.vitorpamplona.quartz.utils.TimeUtils +import kotlinx.coroutines.sync.Mutex +import kotlinx.coroutines.sync.withLock + +/** + * Push token gossip for the groups this client is in + * (`features/push-notifications.md`). + * + * ## What it owns, and what it deliberately does not + * + * It produces and consumes kinds `447`/`448`/`449` and assembles the kind `446` + * trigger rumor. It does NOT publish anything: the trigger's NIP-59 seal, its + * recipient addressing and its publish targets belong to the Nostr binding, and + * the gossip events are ordinary group messages the caller sends like any + * other. + * + * It also does not decide whether push is enabled. A device token and a + * notification server public key both come from the application — a server can + * only wake the app whose platform credentials it holds, so there is no + * protocol-level discovery to do here. + * + * ## Nothing here can affect a group + * + * Every failure in this file is advisory. A malformed entry, an unverifiable + * signature, a removal matching nothing, a stale list — all drop the datum and + * continue. None of it may reject a group message, mutate MLS state, or change + * which commit wins, and the code is shaped so it cannot: the coordinator never + * throws at its callers on bad input, it returns "nothing changed". + */ +class MarmotPushCoordinator( + private val manager: MarmotManager, + /** + * Durable per-group state. The default forgets tombstones on restart, + * which lets a relayed but revoked record win exactly once — acceptable + * for a CLI, not for a phone. + */ + private val stateStore: MarmotPushStateStore = InMemoryPushStateStore(), +) { + private val mutex = Mutex() + private val stores = mutableMapOf() + + /** The active records this client believes in for a group. */ + suspend fun activeRecords(nostrGroupId: HexKey): List = mutex.withLock { storeFor(nostrGroupId)?.active().orEmpty() } + + // ------------------------------------------------------------- producing + + /** + * Encrypt this device's token to [serverPubKeyHex], sign the owner proof, + * and build the kind `447` self-update that announces it. + * + * The record is applied locally first so a later kind `448` of ours carries + * it, and so a stale relay of an older record of ours loses on arrival. + * + * @return the inner event to send into the group, or null when this client + * is not a member of the group or holds no leaf in it. + */ + suspend fun buildSelfUpdate( + nostrGroupId: HexKey, + platform: PushPlatform, + deviceToken: ByteArray, + serverPubKeyHex: HexKey, + relayHint: String = "", + ownerTsMillis: Long = TimeUtils.nowMillis(), + ): Event? { + val entry = + signOwnRecord(nostrGroupId, platform, deviceToken, serverPubKeyHex, relayHint, ownerTsMillis) + ?: return null + + mutex.withLock { + val store = storeFor(nostrGroupId) ?: return null + store.applyTokens(listOf(entry), TimeUtils.nowMillis(), memberCheck(nostrGroupId)) + persist(nostrGroupId, store) + } + + return rumor(TokenRequestEvent.build(listOf(entry))) + } + + /** The empty kind `447`: "share the records you hold with me." */ + fun buildTokenRequest(): Event = rumor(TokenRequestEvent.buildRequest()) + + /** + * Build the kind `448` answer to a request: every active record we hold, + * including other members' records, with their signatures untouched. + * + * Null when we hold nothing to say — an empty list response is noise. + * Records beyond the 32-entry cap are dropped rather than split, because a + * responder is a convenience path and the owners will re-announce. + */ + suspend fun buildTokenList(nostrGroupId: HexKey): Event? { + val records = mutex.withLock { storeFor(nostrGroupId)?.active().orEmpty() } + if (records.isEmpty()) return null + return rumor(TokenListEvent.build(records.take(PushGossip.MAX_ENTRIES))) + } + + /** + * Sign and build the kind `449` that revokes this device's record on + * [serverPubKeyHex]. + * + * [deviceToken] is needed even though the token is not in the removal: the + * fingerprint is, and it is what states which token instance the owner + * meant to revoke. + */ + suspend fun buildRemoval( + nostrGroupId: HexKey, + platform: PushPlatform, + deviceToken: ByteArray, + serverPubKeyHex: HexKey, + ownerTsMillis: Long = TimeUtils.nowMillis(), + ): Event? { + val groupIdHex = manager.mlsGroupIdHex(nostrGroupId) ?: return null + val leafIndex = manager.leafIndexOf(nostrGroupId, manager.signer.pubKey) ?: return null + val fingerprint = PushSignedRecord.fingerprintOf(platform, deviceToken) + + val ownerSig = + proof(PushRecordKind.REMOVAL, groupIdHex, leafIndex, platform, serverPubKeyHex, fingerprint, ownerTsMillis) + ?: return null + + val entry = + PushRemovalEntry( + memberIdHex = manager.signer.pubKey, + leafIndex = leafIndex, + platform = platform, + tokenFingerprint = fingerprint, + serverPubKeyHex = serverPubKeyHex, + ownerTsMillis = ownerTsMillis, + ownerSig = ownerSig, + ) + + mutex.withLock { + val store = storeFor(nostrGroupId) ?: return null + store.applyRemovals(listOf(entry), TimeUtils.nowMillis(), memberCheck(nostrGroupId)) + persist(nostrGroupId, store) + } + + return rumor(TokenRemovalEvent.build(listOf(entry))) + } + + /** + * The kind `446` trigger rumor for a group's active records, or null when + * there is nothing to wake. + * + * [padding] chunks of uniform random bytes are appended to obscure the real + * recipient count from anyone watching the gift wrap's length. They are + * indistinguishable from tokens to an observer and merely fail to decrypt + * at the server — which is why a real token must never be used as padding: + * it would fire a wake with no content behind it. + * + * The caller seals and wraps this to the notification server; nothing here + * publishes. + */ + suspend fun buildTrigger( + nostrGroupId: HexKey, + serverPubKeyHex: HexKey, + padding: Int = 0, + ): Event? { + val chunks = + mutex + .withLock { storeFor(nostrGroupId)?.active().orEmpty() } + .filter { it.serverPubKeyHex == serverPubKeyHex } + .map { it.encryptedToken } + if (chunks.isEmpty()) return null + + val padded = + (chunks + List(padding) { RandomInstance.bytes(PushSignedRecord.ENCRYPTED_TOKEN_BYTES) }) + .take(NotificationRequestEvent.MAX_CHUNKS) + .shuffled() + + // A fresh ephemeral key per trigger, so the server cannot link two + // triggers to one sender — and cannot dedup on the outer event id + // either, which is why the spec keys dedup on the content hash. + val ephemeral = RandomInstance.bytes(32) + val ephemeralPubKey = Nip01Crypto.pubKeyCreate(ephemeral).toHexKey() + return RumorAssembler.assembleRumor(ephemeralPubKey, NotificationRequestEvent.build(padded)) + } + + // ------------------------------------------------------------- consuming + + /** + * Feed one decrypted inner app event to the push state. + * + * Returns true when a stored record changed, so a caller can decide whether + * to answer a request or re-persist. A non-push kind, an unreadable + * payload, and an entry that lost its ordering race all return false and + * are indistinguishable on purpose — none of them is an error. + */ + suspend fun apply( + nostrGroupId: HexKey, + innerEvent: Event, + ): Boolean = + try { + when (innerEvent.kind) { + TokenRequestEvent.KIND, TokenListEvent.KIND -> + applyChange(nostrGroupId) { store, now, isMember -> + store.applyTokens(PushGossip.decodeTokens(innerEvent.content), now, isMember) + } + + TokenRemovalEvent.KIND -> + applyChange(nostrGroupId) { store, now, isMember -> + store.applyRemovals(PushGossip.decodeRemovals(innerEvent.content), now, isMember) + } + + else -> false + } + } catch (e: Exception) { + // Push is advisory end to end: a surprise here must never reach the + // ingest path that decides whether the carrying group message was + // valid. + Log.w("MarmotPushCoordinator", "dropping unreadable push payload in $nostrGroupId", e) + false + } + + /** True when [innerEvent] is a kind `447` asking others to share their records. */ + fun isTokenRequest(innerEvent: Event): Boolean = innerEvent.kind == TokenRequestEvent.KIND && PushGossip.decodeTokens(innerEvent.content).isEmpty() + + /** + * Forget a leaf an accepted Commit removed — record, stamp and tombstone. + * + * Nothing that leaf signed can be applied again, so the durable high-water + * mark has no work left to do. A sibling leaf of the same account keeps + * its own records: different key, still a member. + */ + suspend fun forgetLeaf( + nostrGroupId: HexKey, + memberIdHex: HexKey, + leafIndex: Int, + ) { + mutex.withLock { + val store = storeFor(nostrGroupId) ?: return + store.forgetLeaf(memberIdHex, leafIndex) + persist(nostrGroupId, store) + } + } + + suspend fun forgetGroup(nostrGroupId: HexKey) { + mutex.withLock { + stores.remove(nostrGroupId) + stateStore.clear(nostrGroupId) + } + } + + // ------------------------------------------------------------- internals + + private suspend fun applyChange( + nostrGroupId: HexKey, + change: (PushRecordStore, Long, (HexKey) -> Boolean) -> Set<*>, + ): Boolean = + mutex.withLock { + val store = storeFor(nostrGroupId) ?: return false + val changed = change(store, TimeUtils.nowMillis(), memberCheck(nostrGroupId)) + if (changed.isNotEmpty()) persist(nostrGroupId, store) + changed.isNotEmpty() + } + + /** + * Membership is read from the MLS tree, never from the carrying event's + * sender: a verified entry applies whoever relayed it, and an entry naming + * a non-member is dropped however it arrived. + */ + private fun memberCheck(nostrGroupId: HexKey): (HexKey) -> Boolean { + val members = manager.memberPubkeys(nostrGroupId).map { it.pubkey }.toSet() + return { it in members } + } + + private suspend fun storeFor(nostrGroupId: HexKey): PushRecordStore? { + stores[nostrGroupId]?.let { return it } + val groupIdHex = manager.mlsGroupIdHex(nostrGroupId) ?: return null + val store = + PushRecordStore( + groupIdHex = groupIdHex, + // From the GroupContext, never from anything a sender claims: + // it decides which owner-proof forms are acceptable at all. + currentProfileGroup = manager.groupState(nostrGroupId)?.isCurrentProfile == true, + ) + stateStore.load(nostrGroupId)?.let { PushStateCodec.decodeInto(store, it) } + stores[nostrGroupId] = store + return store + } + + private suspend fun persist( + nostrGroupId: HexKey, + store: PushRecordStore, + ) { + try { + stateStore.save(nostrGroupId, PushStateCodec.encode(store)) + } catch (e: Exception) { + Log.w("MarmotPushCoordinator", "could not persist push state for $nostrGroupId", e) + } + } + + private suspend fun signOwnRecord( + nostrGroupId: HexKey, + platform: PushPlatform, + deviceToken: ByteArray, + serverPubKeyHex: HexKey, + relayHint: String, + ownerTsMillis: Long, + ): PushTokenEntry? { + val groupIdHex = manager.mlsGroupIdHex(nostrGroupId) ?: return null + val leafIndex = manager.leafIndexOf(nostrGroupId, manager.signer.pubKey) ?: return null + val fingerprint = PushSignedRecord.fingerprintOf(platform, deviceToken) + val encryptedTokenBase64 = + try { + TokenEncryption.encrypt(platform, deviceToken, serverPubKeyHex.hexToByteArray()) + } catch (e: Exception) { + Log.w("MarmotPushCoordinator", "could not encrypt the device token", e) + return null + } + val hint = PushSignedRecord.normalizeRelayHint(relayHint) + + val ownerSig = + proof( + record = PushRecordKind.TOKEN, + groupIdHex = groupIdHex, + leafIndex = leafIndex, + platform = platform, + serverPubKeyHex = serverPubKeyHex, + fingerprint = fingerprint, + ownerTsMillis = ownerTsMillis, + relayHint = hint, + encryptedTokenBase64 = encryptedTokenBase64, + ) ?: return null + + return PushTokenEntry( + memberIdHex = manager.signer.pubKey, + leafIndex = leafIndex, + platform = platform, + tokenFingerprint = fingerprint, + serverPubKeyHex = serverPubKeyHex, + relayHint = hint, + encryptedToken = requireNotNull(PushBase64.decodeOrNull(encryptedTokenBase64)), + ownerTsMillis = ownerTsMillis, + ownerSig = ownerSig, + ) + } + + /** + * Ask the account signer for the unpublished kind `451` proof. + * + * [PushOwnerProof.create] re-validates whatever the signer returns before + * copying the signature out, which matters for an external signer: a + * substituted group id or server pubkey would otherwise become a proof that + * silently authorizes the wrong destination. + */ + private suspend fun proof( + record: PushRecordKind, + groupIdHex: HexKey, + leafIndex: Int, + platform: PushPlatform, + serverPubKeyHex: HexKey, + fingerprint: String, + ownerTsMillis: Long, + relayHint: String = "", + encryptedTokenBase64: String = "", + ): ByteArray? = + try { + PushOwnerProof.create( + signer = manager.signer, + record = record, + groupIdHex = groupIdHex, + leafIndex = leafIndex, + platform = platform.wireName, + serverPubKeyHex = serverPubKeyHex, + tokenFingerprint = fingerprint, + ownerTsMillis = ownerTsMillis, + relayHint = relayHint, + encryptedTokenBase64 = encryptedTokenBase64, + ) + } catch (e: Exception) { + Log.w("MarmotPushCoordinator", "the signer did not produce a usable push owner proof", e) + null + } + + /** + * The unsigned inner rumor a caller sends like any other group message. + * + * The coordinator deliberately stops here rather than building the kind:445 + * itself: encrypting one advances the group's ratchet, and a message the + * caller then decides not to publish would burn a generation for nothing. + */ + private fun rumor(template: EventTemplate): Event { + @Suppress("UNCHECKED_CAST") + return RumorAssembler.assembleRumor(manager.signer.pubKey, template as EventTemplate) + } +} diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt index b0927b5aab..939ac252d7 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt @@ -155,12 +155,22 @@ class MarmotGroupList( private const val MARMOT_INNER_KIND_EDIT = 1009 private const val MARMOT_INNER_KIND_STREAM_START = 1200 + // Push token gossip. Routing data for a notification server, addressed + // to the other members' clients rather than to the people in the room — + // a reader must never see a row for one. + private const val MARMOT_INNER_KIND_PUSH_TOKEN_UPDATE = 447 + private const val MARMOT_INNER_KIND_PUSH_TOKEN_LIST = 448 + private const val MARMOT_INNER_KIND_PUSH_TOKEN_REMOVAL = 449 + private val NON_CHAT_INNER_KINDS = setOf( MARMOT_INNER_KIND_DELETION, MARMOT_INNER_KIND_REACTION, MARMOT_INNER_KIND_EDIT, MARMOT_INNER_KIND_STREAM_START, + MARMOT_INNER_KIND_PUSH_TOKEN_UPDATE, + MARMOT_INNER_KIND_PUSH_TOKEN_LIST, + MARMOT_INNER_KIND_PUSH_TOKEN_REMOVAL, ) } } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt index 53ba60da22..7a85111cec 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt @@ -23,10 +23,7 @@ package com.vitorpamplona.amethyst.commons.marmot import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotAppEvent import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotSystemEvent import com.vitorpamplona.quartz.marmot.foundation.appEvents.MarmotSystemType -import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData -import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore -import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal @@ -187,79 +184,3 @@ class MarmotEditsAndSystemRowsTest { assertEquals(1, rows.size) } } - -/** Stands in for a relay that accepts every commit, so epochs actually advance. */ -private val ACCEPTING_RELAY = MarmotPublisher { _, _ -> true } - -private class SnapshotStateStore : MlsGroupStateStore { - private val states = mutableMapOf() - private val retained = mutableMapOf>() - - override suspend fun save( - nostrGroupId: String, - state: ByteArray, - ) { - states[nostrGroupId] = state - } - - override suspend fun load(nostrGroupId: String): ByteArray? = states[nostrGroupId] - - override suspend fun delete(nostrGroupId: String) { - states.remove(nostrGroupId) - retained.remove(nostrGroupId) - } - - override suspend fun listGroups(): List = states.keys.toList() - - override suspend fun saveRetainedEpochs( - nostrGroupId: String, - retainedSecrets: List, - ) { - retained[nostrGroupId] = retainedSecrets - } - - override suspend fun loadRetainedEpochs(nostrGroupId: String): List = retained[nostrGroupId] ?: emptyList() -} - -private class SnapshotMessageStore : MarmotMessageStore { - private val messages = mutableMapOf>() - private val snapshots = mutableMapOf() - - override suspend fun appendMessage( - nostrGroupId: String, - innerEventJson: String, - ) { - val log = messages.getOrPut(nostrGroupId) { mutableListOf() } - if (innerEventJson !in log) log.add(innerEventJson) - } - - override suspend fun loadMessages(nostrGroupId: String): List = messages[nostrGroupId]?.toList() ?: emptyList() - - override suspend fun delete(nostrGroupId: String) { - messages.remove(nostrGroupId) - snapshots.remove(nostrGroupId) - } - - override suspend fun recordGroupSnapshot( - nostrGroupId: String, - snapshotJson: String, - ) { - snapshots[nostrGroupId] = snapshotJson - } - - override suspend fun loadGroupSnapshot(nostrGroupId: String): String? = snapshots[nostrGroupId] -} - -private class SnapshotBundleStore : KeyPackageBundleStore { - private var snapshot: ByteArray? = null - - override suspend fun save(snapshot: ByteArray) { - this.snapshot = snapshot - } - - override suspend fun load(): ByteArray? = snapshot - - override suspend fun delete() { - snapshot = null - } -} diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPushCoordinatorTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPushCoordinatorTest.kt new file mode 100644 index 0000000000..dd820785c9 --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPushCoordinatorTest.kt @@ -0,0 +1,318 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.InMemoryPushStateStore +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushBase64 +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushGossip +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushOwnerProof +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushPlatform +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushRecordKind +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushSignedRecord +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushTokenEntry +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.TokenEncryption +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.TokenListEvent +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.TokenRemovalEvent +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.TokenRequestEvent +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.crypto.Nip01Crypto +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFalse +import kotlin.test.assertNotNull +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * Push token gossip through the app layer + * (`features/push-notifications.md`). + * + * The interesting failures here are not parse errors — those are covered in + * quartz — but the ones where the app layer would quietly do the wrong thing: + * announce a record no peer can verify, answer a request with nothing, or + * forget a tombstone across a restart and start waking a revoked device again. + */ +class MarmotPushCoordinatorTest { + private val nostrGroupId = "d".repeat(64) + private val server = "2f8bde4d1a07209355b4a7250a5c5128e88b84bddc619ab7cba8d569b240efe4" + private val deviceToken = "a-real-looking-apns-token".encodeToByteArray() + + private class Fixture { + val signer = NostrSignerInternal(KeyPair()) + val mlsStore = SnapshotStateStore() + val messageStore = SnapshotMessageStore() + val stateStore = InMemoryPushStateStore() + val manager = MarmotManager(signer, mlsStore, messageStore, SnapshotBundleStore(), publisher = ACCEPTING_RELAY) + val push = MarmotPushCoordinator(manager, stateStore) + } + + private suspend fun Fixture.createGroup() = + manager.createGroup( + nostrGroupId, + MarmotGroupData(nostrGroupId = nostrGroupId, name = "push", relays = listOf("wss://relay.invalid")), + ) + + private suspend fun Fixture.selfUpdate( + ownerTs: Long = 1_735_680_000_000L, + relayHint: String = "", + ): Event = + assertNotNull( + push.buildSelfUpdate(nostrGroupId, PushPlatform.APNS, deviceToken, server, relayHint, ownerTs), + "the group's own member should be able to announce a token", + ) + + @Test + fun `a self update announces a record every peer can verify`() = + runBlocking { + val f = Fixture() + f.createGroup() + val event = f.selfUpdate(relayHint = "wss://push.example.com") + + assertEquals(TokenRequestEvent.KIND, event.kind) + // Unsigned: it is an inner Marmot app payload, and its authority is + // the entry's own owner_sig rather than a Nostr signature. + assertEquals("", event.sig) + + val entry = PushGossip.decodeTokens(event.content).single() + assertEquals(f.signer.pubKey, entry.memberIdHex) + assertEquals(PushPlatform.APNS, entry.platform) + assertEquals("wss://push.example.com", entry.relayHint) + assertEquals(PushSignedRecord.fingerprintOf(PushPlatform.APNS, deviceToken), entry.tokenFingerprint) + assertEquals(PushSignedRecord.ENCRYPTED_TOKEN_BYTES, entry.encryptedToken.size) + + // The proof is what a peer actually checks, and it binds the group. + val groupIdHex = assertNotNull(f.manager.mlsGroupIdHex(nostrGroupId)) + assertTrue(entry.verifyOwner(groupIdHex, currentProfileGroup = false)) + assertFalse(entry.verifyOwner("00".repeat(16), currentProfileGroup = false)) + } + + @Test + fun `the announced record is applied locally so a later list carries it`() = + runBlocking { + val f = Fixture() + f.createGroup() + f.selfUpdate() + + val list = assertNotNull(f.push.buildTokenList(nostrGroupId)) + assertEquals(TokenListEvent.KIND, list.kind) + assertEquals(1, PushGossip.decodeTokens(list.content).size) + } + + @Test + fun `there is no list response when we hold nothing`() = + runBlocking { + val f = Fixture() + f.createGroup() + // An empty kind 448 is noise: it tells a requester nothing it did + // not already know and still costs a group message. + assertNull(f.push.buildTokenList(nostrGroupId)) + } + + @Test + fun `an empty request is recognised and a self update is not`() = + runBlocking { + val f = Fixture() + f.createGroup() + assertTrue(f.push.isTokenRequest(f.push.buildTokenRequest())) + assertFalse(f.push.isTokenRequest(f.selfUpdate())) + } + + @Test + fun `an entry relayed by another member is applied on its own signature`() = + runBlocking { + // Two accounts, one group each, same MLS group id would be ideal — + // but the point is narrower and testable here: applying an entry + // does not consult who carried it, only whether the signature + // verifies and the named member is current. + val f = Fixture() + f.createGroup() + val announced = f.selfUpdate() + + val relayed = Fixture() + // A fresh coordinator over the same manager stands in for a peer + // that only ever saw the gossip, never the sender. + val peer = MarmotPushCoordinator(f.manager, InMemoryPushStateStore()) + assertTrue(peer.apply(nostrGroupId, announced)) + assertEquals(1, peer.activeRecords(nostrGroupId).size) + assertTrue(relayed.stateStore.load(nostrGroupId) == null) + } + + @Test + fun `a properly signed entry naming a non-member is still dropped`() = + runBlocking { + val f = Fixture() + f.createGroup() + val groupIdHex = assertNotNull(f.manager.mlsGroupIdHex(nostrGroupId)) + + // A real proof from an account that simply holds no leaf here. The + // signature verifies; membership is the separate gate, and it has + // to be, or anyone who ever learns a group id could point its + // members' notifications at a server of their choosing. + val outsiderPriv = ByteArray(32).also { it[31] = 7 } + val outsider = Nip01Crypto.pubKeyCreate(outsiderPriv).toHexKey() + val fingerprint = PushSignedRecord.fingerprintOf(PushPlatform.APNS, deviceToken) + val encryptedToken = TokenEncryption.encrypt(PushPlatform.APNS, deviceToken, server.hexToByteArray()) + val ownerTs = 1_735_680_000_000L + val tags = + PushOwnerProof.tags( + PushRecordKind.TOKEN, + groupIdHex, + outsider, + 0, + PushPlatform.APNS.wireName, + server, + fingerprint, + ownerTs, + "", + ) + val entry = + PushTokenEntry( + memberIdHex = outsider, + leafIndex = 0, + platform = PushPlatform.APNS, + tokenFingerprint = fingerprint, + serverPubKeyHex = server, + relayHint = "", + encryptedToken = assertNotNull(PushBase64.decodeOrNull(encryptedToken)), + ownerTsMillis = ownerTs, + ownerSig = Nip01Crypto.sign(PushOwnerProof.eventId(outsider, tags, encryptedToken), outsiderPriv), + ) + assertTrue(entry.verifyOwner(groupIdHex, currentProfileGroup = false), "the fixture should sign a real proof") + + val carried = + Event("0".repeat(64), f.signer.pubKey, 1L, TokenRequestEvent.KIND, emptyArray(), PushGossip.encodeTokens(listOf(entry)), "") + assertFalse(f.push.apply(nostrGroupId, carried)) + assertTrue(f.push.activeRecords(nostrGroupId).isEmpty()) + } + + @Test + fun `a removal revokes the record and the tombstone survives a restart`() = + runBlocking { + val f = Fixture() + f.createGroup() + val announced = f.selfUpdate(ownerTs = 1_735_680_000_000L) + + val removal = + assertNotNull( + f.push.buildRemoval(nostrGroupId, PushPlatform.APNS, deviceToken, server, ownerTsMillis = 1_735_680_001_000L), + ) + assertEquals(TokenRemovalEvent.KIND, removal.kind) + assertTrue(f.push.activeRecords(nostrGroupId).isEmpty()) + + // A member that assembled a kind 448 before the removal delivers it + // after. A restarted client must still refuse it — the tombstone is + // the only durable thing that recognises it as stale, and a relayed + // record's carrying epoch is unbounded. + val restarted = MarmotPushCoordinator(f.manager, f.stateStore) + assertFalse(restarted.apply(nostrGroupId, announced)) + assertTrue(restarted.activeRecords(nostrGroupId).isEmpty()) + } + + @Test + fun `a newer registration clears the tombstone`() = + runBlocking { + val f = Fixture() + f.createGroup() + f.selfUpdate(ownerTs = 1_735_680_000_000L) + f.push.buildRemoval(nostrGroupId, PushPlatform.APNS, deviceToken, server, ownerTsMillis = 1_735_680_001_000L) + + f.selfUpdate(ownerTs = 1_735_680_002_000L) + assertEquals(1, f.push.activeRecords(nostrGroupId).size) + } + + @Test + fun `a removed leaf loses its records entirely`() = + runBlocking { + val f = Fixture() + f.createGroup() + f.selfUpdate() + + val leafIndex = assertNotNull(f.manager.leafIndexOf(nostrGroupId, f.signer.pubKey)) + f.push.forgetLeaf(nostrGroupId, f.signer.pubKey, leafIndex) + assertTrue(f.push.activeRecords(nostrGroupId).isEmpty()) + } + + @Test + fun `a trigger carries the encrypted tokens and nothing else`() = + runBlocking { + val f = Fixture() + f.createGroup() + f.selfUpdate() + + val trigger = assertNotNull(f.push.buildTrigger(nostrGroupId, server, padding = 3)) + assertEquals(446, trigger.kind) + // A fresh ephemeral key, so the server cannot link two triggers to + // one sender — nor dedup on the outer id, which is why the spec + // keys dedup on the content hash instead. + assertFalse(trigger.pubKey == f.signer.pubKey) + assertEquals(1, trigger.tags.size) + assertEquals(listOf("v", PushGossip.VERSION), trigger.tags.single().toList()) + + val chunks = assertNotNull(Event.fromJson(trigger.toJson()).let { _ -> f.chunksOf(trigger) }) + assertEquals(4, chunks.size) + assertTrue( + chunks.any { + it.toHexKey() == + f.push + .activeRecords(nostrGroupId) + .single() + .encryptedToken + .toHexKey() + }, + ) + } + + @Test + fun `nothing to wake means no trigger`() = + runBlocking { + val f = Fixture() + f.createGroup() + assertNull(f.push.buildTrigger(nostrGroupId, server)) + } + + @Test + fun `an unreadable payload changes nothing and does not throw`() = + runBlocking { + val f = Fixture() + f.createGroup() + val junk = + Event("0".repeat(64), f.signer.pubKey, 1L, TokenListEvent.KIND, emptyArray(), "{not json", "") + assertFalse(f.push.apply(nostrGroupId, junk)) + assertTrue(f.push.activeRecords(nostrGroupId).isEmpty()) + } + + private fun Fixture.chunksOf(trigger: Event): List? = + com.vitorpamplona.quartz.marmot.mip05PushNotifications + .NotificationRequestEvent( + trigger.id, + trigger.pubKey, + trigger.createdAt, + trigger.tags, + trigger.content, + trigger.sig, + ).chunks() +} diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotTestStores.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotTestStores.kt new file mode 100644 index 0000000000..1ebd9d9270 --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotTestStores.kt @@ -0,0 +1,108 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore +import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore + +// In-memory stand-ins for the durable stores a MarmotManager needs. +// +// Shared across the Marmot app-layer tests rather than re-declared per file: +// several of them turn on what survives a restart, and "restart" here means +// building a second manager over the SAME store instance. A per-file copy +// would quietly make each test's restart a different thing. + +/** Stands in for a relay that accepts every commit, so epochs actually advance. */ +val ACCEPTING_RELAY = MarmotPublisher { _, _ -> true } + +class SnapshotStateStore : MlsGroupStateStore { + private val states = mutableMapOf() + private val retained = mutableMapOf>() + + override suspend fun save( + nostrGroupId: String, + state: ByteArray, + ) { + states[nostrGroupId] = state + } + + override suspend fun load(nostrGroupId: String): ByteArray? = states[nostrGroupId] + + override suspend fun delete(nostrGroupId: String) { + states.remove(nostrGroupId) + retained.remove(nostrGroupId) + } + + override suspend fun listGroups(): List = states.keys.toList() + + override suspend fun saveRetainedEpochs( + nostrGroupId: String, + retainedSecrets: List, + ) { + retained[nostrGroupId] = retainedSecrets + } + + override suspend fun loadRetainedEpochs(nostrGroupId: String): List = retained[nostrGroupId] ?: emptyList() +} + +class SnapshotMessageStore : MarmotMessageStore { + private val messages = mutableMapOf>() + private val snapshots = mutableMapOf() + + override suspend fun appendMessage( + nostrGroupId: String, + innerEventJson: String, + ) { + val log = messages.getOrPut(nostrGroupId) { mutableListOf() } + if (innerEventJson !in log) log.add(innerEventJson) + } + + override suspend fun loadMessages(nostrGroupId: String): List = messages[nostrGroupId]?.toList() ?: emptyList() + + override suspend fun delete(nostrGroupId: String) { + messages.remove(nostrGroupId) + snapshots.remove(nostrGroupId) + } + + override suspend fun recordGroupSnapshot( + nostrGroupId: String, + snapshotJson: String, + ) { + snapshots[nostrGroupId] = snapshotJson + } + + override suspend fun loadGroupSnapshot(nostrGroupId: String): String? = snapshots[nostrGroupId] +} + +class SnapshotBundleStore : KeyPackageBundleStore { + private var snapshot: ByteArray? = null + + override suspend fun save(snapshot: ByteArray) { + this.snapshot = snapshot + } + + override suspend fun load(): ByteArray? = snapshot + + override suspend fun delete() { + snapshot = null + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/MarmotPushStateStore.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/MarmotPushStateStore.kt new file mode 100644 index 0000000000..ebca01eff7 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/MarmotPushStateStore.kt @@ -0,0 +1,202 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip05PushNotifications + +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import kotlinx.serialization.json.Json +import kotlinx.serialization.json.JsonArray +import kotlinx.serialization.json.JsonObject +import kotlinx.serialization.json.JsonPrimitive +import kotlinx.serialization.json.buildJsonArray +import kotlinx.serialization.json.buildJsonObject +import kotlinx.serialization.json.put + +/** + * Durable push state for one group: which token records are active, the + * high-water stamp of every record key, and which keys carry a tombstone. + * + * ## Why this needs a store of its own + * + * Because a tombstone that does not survive a restart is not a tombstone. Owner + * authentication makes a record relay-portable, so any current member can + * re-emit a revoked-but-still-signed record inside a fresh kind `448` at any + * later epoch. The per-key stamp is the ONLY thing that recognises it as stale, + * and it cannot be rebuilt by replaying retained app payloads — the relayed + * record's carrying epoch is unbounded, while the retained window is not. + * + * The state holds no secret: encrypted tokens are already encrypted to a + * notification server this client cannot read, and everything else is public + * routing. An implementation MAY still encrypt at rest, but a store that cannot + * is better than no store. + */ +interface MarmotPushStateStore { + /** The stored blob for a group, or null when nothing is stored yet. */ + suspend fun load(nostrGroupId: HexKey): String? + + suspend fun save( + nostrGroupId: HexKey, + state: String, + ) + + suspend fun clear(nostrGroupId: HexKey) +} + +/** Non-durable default. A restart forgets every tombstone, so a stale relay can win once. */ +class InMemoryPushStateStore : MarmotPushStateStore { + private val states = mutableMapOf() + + override suspend fun load(nostrGroupId: HexKey): String? = states[nostrGroupId] + + override suspend fun save( + nostrGroupId: HexKey, + state: String, + ) { + states[nostrGroupId] = state + } + + override suspend fun clear(nostrGroupId: HexKey) { + states.remove(nostrGroupId) + } +} + +/** + * The on-disk shape of a [PushRecordStore]. + * + * A local format, not a wire format: it is never sent anywhere, so it is free + * to store the derived stamp beside each key rather than recompute it. That is + * the point — the stamp of a tombstoned key has no record left to recompute it + * from. + */ +object PushStateCodec { + private val parser = Json { ignoreUnknownKeys = true } + + fun encode(store: PushRecordStore): String { + val stamps = store.snapshotStamps() + val tombstones = store.snapshotTombstones() + return buildJsonObject { + put("group_id", store.groupIdHex) + put( + "records", + buildJsonArray { + store.active().forEach { add(recordJson(it)) } + }, + ) + put( + "stamps", + buildJsonArray { + stamps.forEach { (key, stamp) -> + add( + buildJsonObject { + putKey(key) + put("owner_ts", stamp.ownerTsMillis) + put("digest", stamp.digestHex) + put("tombstone", key in tombstones) + }, + ) + } + }, + ) + }.toString() + } + + /** Restore [store] from [json]. A blob that cannot be read leaves the store untouched. */ + fun decodeInto( + store: PushRecordStore, + json: String, + ): Boolean { + val root = + try { + parser.parseToJsonElement(json) as? JsonObject + } catch (_: Exception) { + null + } ?: return false + + val records = + (root["records"] as? JsonArray) + ?.mapNotNull { it as? JsonObject } + ?.mapNotNull { readRecord(it) } + .orEmpty() + + val stamps = mutableMapOf() + val tombstones = mutableSetOf() + (root["stamps"] as? JsonArray)?.mapNotNull { it as? JsonObject }?.forEach { obj -> + val key = readKey(obj) ?: return@forEach + val ownerTs = obj.long("owner_ts") ?: return@forEach + val digest = obj.str("digest") ?: return@forEach + stamps[key] = PushRecordStamp(ownerTs, digest) + if ((obj["tombstone"] as? JsonPrimitive)?.content == "true") tombstones.add(key) + } + + store.restore(records, stamps, tombstones) + return true + } + + private fun recordJson(entry: PushTokenEntry): JsonObject = + buildJsonObject { + putKey(entry.key) + put("token_fingerprint", entry.tokenFingerprint) + put("relay_hint", entry.relayHint) + put("encrypted_token", entry.encryptedTokenBase64) + put("owner_ts", entry.ownerTsMillis) + put("owner_sig", PushHex.of(entry.ownerSig)) + } + + private fun readRecord(obj: JsonObject): PushTokenEntry? { + val key = readKey(obj) ?: return null + val fingerprint = obj.str("token_fingerprint") ?: return null + val token = + PushBase64 + .decodeOrNull(obj.str("encrypted_token") ?: return null) + ?.takeIf { it.size == PushSignedRecord.ENCRYPTED_TOKEN_BYTES } ?: return null + val ownerTs = obj.long("owner_ts") ?: return null + val sigHex = obj.str("owner_sig")?.takeIf { PushHex.isLower(it, 128) } ?: return null + return PushTokenEntry( + memberIdHex = key.memberIdHex, + leafIndex = key.leafIndex, + platform = key.platform, + tokenFingerprint = fingerprint, + serverPubKeyHex = key.serverPubKeyHex, + relayHint = obj.str("relay_hint").orEmpty(), + encryptedToken = token, + ownerTsMillis = ownerTs, + ownerSig = PushHex.bytes(sigHex), + ) + } + + private fun readKey(obj: JsonObject): PushRecordKey? { + val member = obj.str("member_id_hex")?.takeIf { PushHex.isLower(it, 64) } ?: return null + val server = obj.str("server_pubkey_hex")?.takeIf { PushHex.isLower(it, 64) } ?: return null + val leaf = obj.long("leaf_index")?.takeIf { it in 0..Int.MAX_VALUE.toLong() }?.toInt() ?: return null + val platform = obj.str("platform")?.let { PushPlatform.fromWireName(it) } ?: return null + return PushRecordKey(member, leaf, platform, server) + } + + private fun kotlinx.serialization.json.JsonObjectBuilder.putKey(key: PushRecordKey) { + put("member_id_hex", key.memberIdHex) + put("leaf_index", key.leafIndex) + put("platform", key.platform.wireName) + put("server_pubkey_hex", key.serverPubKeyHex) + } + + private fun JsonObject.str(name: String): String? = (this[name] as? JsonPrimitive)?.takeIf { it.isString }?.content + + private fun JsonObject.long(name: String): Long? = (this[name] as? JsonPrimitive)?.takeIf { !it.isString }?.content?.toLongOrNull() +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/NotificationRequestEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/NotificationRequestEvent.kt index e942ee4efa..aeedec16b8 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/NotificationRequestEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/NotificationRequestEvent.kt @@ -21,7 +21,6 @@ package com.vitorpamplona.quartz.marmot.mip05PushNotifications import androidx.compose.runtime.Immutable -import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.EncodingTag import com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags.VersionTag import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey @@ -30,18 +29,21 @@ import com.vitorpamplona.quartz.nip01Core.signers.eventTemplate import com.vitorpamplona.quartz.utils.TimeUtils /** - * Marmot Notification Request Event (MIP-05) — kind 446. + * Marmot push notification trigger — kind 446 + * (`features/push-notifications.md`, "Notification trigger"). * - * An unsigned rumor event delivered via NIP-59 gift wrap to the notification server. - * Contains concatenated EncryptedTokens (each 280 bytes), base64-encoded. + * The rumor inside a gift wrap addressed to a notification server's inbox. It + * is NOT an inner group payload: kinds 447-449 travel inside group messages, + * this one leaves the group entirely, so the Nostr binding owns its seal, wrap + * and publish targets. * - * Flow: Rumor(kind:446) → Seal(kind:13) → GiftWrap(kind:1059) → notification server + * `pubkey` MUST be a fresh ephemeral key. That is also why a server cannot + * deduplicate on the outer event id — a replayer re-wraps freely — and must key + * on the content hash instead. * - * The pubkey MUST be a fresh ephemeral key (not the sender's identity) - * to prevent the notification server from linking events to users. - * - * Content includes real group tokens plus decoy tokens from other groups - * (shuffled) to obscure group size and prevent social graph inference. + * The only tag is `v`. The earlier exploratory shape also required an + * `["encoding", "base64"]` tag; the adopted rumor does not carry one, because + * the transport's byte-encoding rule already fixes standard padded base64. */ @Immutable class NotificationRequestEvent( @@ -53,31 +55,57 @@ class NotificationRequestEvent( sig: HexKey, ) : Event(id, pubKey, createdAt, KIND, tags, content, sig) { /** - * Base64-encoded concatenation of EncryptedTokens. - * Each token is exactly 280 bytes when decoded. - * Total decoded length MUST be a multiple of 280. + * Base64 of 1 to 32 concatenated 1084-byte chunks, each an `EncryptedToken` + * or random padding. */ fun tokensBase64() = content - /** Notification protocol version (must be "mip05-v1") */ + /** Must be [PushGossip.VERSION]; anything else is not this protocol. */ fun version() = tags.notificationVersion() - /** Content encoding (must be "base64") */ - fun encoding() = tags.notificationEncoding() + /** + * The chunks, or null when the trigger is structurally malformed. + * + * The length check happens before any ECDH or AEAD work, which is the point: + * a server must be able to discard an oversized trigger without doing the + * expensive part. + */ + fun chunks(): List? { + val decoded = PushBase64.decodeOrNull(content) ?: return null + if (decoded.isEmpty()) return null + if (decoded.size % PushSignedRecord.ENCRYPTED_TOKEN_BYTES != 0) return null + val count = decoded.size / PushSignedRecord.ENCRYPTED_TOKEN_BYTES + if (count > MAX_CHUNKS) return null + return List(count) { + decoded.copyOfRange(it * PushSignedRecord.ENCRYPTED_TOKEN_BYTES, (it + 1) * PushSignedRecord.ENCRYPTED_TOKEN_BYTES) + } + } override fun isContentEncoded() = true companion object { const val KIND = 446 + /** Includes padding: padding cannot create unbounded server work. */ + const val MAX_CHUNKS = 32 + fun build( - tokensBase64: String, + chunks: List, createdAt: Long = TimeUtils.now(), initializer: TagArrayBuilder.() -> Unit = {}, - ) = eventTemplate(KIND, tokensBase64, createdAt) { - addUnique(VersionTag.assemble()) - addUnique(EncodingTag.assemble()) - initializer() + ): com.vitorpamplona.quartz.nip01Core.signers.EventTemplate { + require(chunks.isNotEmpty() && chunks.size <= MAX_CHUNKS) { + "a push trigger carries 1..$MAX_CHUNKS chunks, got ${chunks.size}" + } + require(chunks.all { it.size == PushSignedRecord.ENCRYPTED_TOKEN_BYTES }) { + "every push trigger chunk is exactly ${PushSignedRecord.ENCRYPTED_TOKEN_BYTES} bytes" + } + val joined = ByteArray(chunks.size * PushSignedRecord.ENCRYPTED_TOKEN_BYTES) + chunks.forEachIndexed { index, chunk -> chunk.copyInto(joined, index * PushSignedRecord.ENCRYPTED_TOKEN_BYTES) } + return eventTemplate(KIND, PushBase64.encode(joined), createdAt) { + addUnique(VersionTag.assemble()) + initializer() + } } } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TagArrayBuilderExt.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushBase64.kt similarity index 58% rename from quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TagArrayBuilderExt.kt rename to quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushBase64.kt index d53e616f28..ab68d2743d 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TagArrayBuilderExt.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushBase64.kt @@ -20,11 +20,27 @@ */ package com.vitorpamplona.quartz.marmot.mip05PushNotifications -import com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags.TokenTag -import com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags.TokenTagData -import com.vitorpamplona.quartz.nip01Core.core.Event -import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder +import kotlin.io.encoding.Base64 +import kotlin.io.encoding.ExperimentalEncodingApi -fun TagArrayBuilder.tokens(tokens: List) = addAll(TokenTag.assemble(tokens)) +/** + * Standard base64 with padding — the encoding push uses for an `EncryptedToken` + * and for the kind `446` trigger content. + * + * Wrapped rather than called directly so that "standard, padded, and it either + * decodes or the datum is dropped" is stated once. Everything push decodes is + * advisory: a bad entry is discarded, and nothing about it may reach the + * validity of the group message that carried it. + */ +@OptIn(ExperimentalEncodingApi::class) +object PushBase64 { + fun encode(bytes: ByteArray): String = Base64.encode(bytes) -fun TagArrayBuilder.token(data: TokenTagData) = add(TokenTag.assemble(data)) + /** Null when [text] is not valid standard base64. */ + fun decodeOrNull(text: String): ByteArray? = + try { + Base64.decode(text) + } catch (_: Exception) { + null + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushGossip.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushGossip.kt new file mode 100644 index 0000000000..a3cce56287 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushGossip.kt @@ -0,0 +1,225 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip05PushNotifications + +import kotlinx.serialization.json.Json +import kotlinx.serialization.json.JsonArray +import kotlinx.serialization.json.JsonObject +import kotlinx.serialization.json.JsonPrimitive +import kotlinx.serialization.json.buildJsonArray +import kotlinx.serialization.json.buildJsonObject +import kotlinx.serialization.json.jsonPrimitive +import kotlinx.serialization.json.put + +/** + * The `content` JSON of the push gossip app events — kinds `447`, `448` and + * `449` (`features/push-notifications.md`, "Token gossip event shapes"). + * + * ## Everything here is advisory + * + * Push draws a hard line: a malformed entry, an unverifiable `owner_sig`, a + * removal that matches nothing, an array that lost an ordering race — all of it + * is dropped datum by datum, and NONE of it may reject the group message that + * carried it or touch group state. So the decoders below return the entries + * they could read and silently discard the rest, rather than throwing. + * + * The one array-wide rule is the 32-entry cap: an array longer than that is + * treated as invalid *in its entirety*, before any signature is verified, so an + * oversized array cannot make a recipient do unbounded verification work. + */ +object PushGossip { + /** The only `v` any of these events may carry. A different value is rejected outright. */ + const val VERSION = "marmot-push-v1" + + const val MAX_ENTRIES = 32 + + /** + * How far ahead of local wall clock an `owner_ts` may be: one hour. + * + * The bound exists because `owner_ts` is a latest-wins high-water mark. A + * far-future stamp would otherwise pin a record permanently, and no honest + * clock skew reaches an hour. + */ + const val OWNER_TS_MAX_FUTURE_MILLIS = 3_600_000L + + private val parser = Json { ignoreUnknownKeys = true } + + // ---------------------------------------------------------------- encode + + fun encodeTokens(entries: List): String = + buildJsonObject { + put("v", VERSION) + put( + "tokens", + buildJsonArray { + entries.forEach { add(encodeToken(it)) } + }, + ) + }.toString() + + fun encodeRemovals(entries: List): String = + buildJsonObject { + put("v", VERSION) + put( + "removals", + buildJsonArray { + entries.forEach { add(encodeRemoval(it)) } + }, + ) + }.toString() + + /** A kind `447` with no entries: "share your records with me". */ + fun encodeRequest(): String = encodeTokens(emptyList()) + + private fun encodeToken(entry: PushTokenEntry): JsonObject = + buildJsonObject { + put("member_id_hex", entry.memberIdHex) + put("leaf_index", entry.leafIndex) + put("platform", entry.platform.wireName) + put("token_fingerprint", entry.tokenFingerprint) + put("server_pubkey_hex", entry.serverPubKeyHex) + // An absent hint is omitted rather than written as "", matching what + // the owner proof signed over. + if (entry.relayHint.isNotEmpty()) put("relay_hint", entry.relayHint) + put("encrypted_token", entry.encryptedTokenBase64) + put("owner_ts", entry.ownerTsMillis) + put("owner_sig", PushHex.of(entry.ownerSig)) + } + + private fun encodeRemoval(entry: PushRemovalEntry): JsonObject = + buildJsonObject { + put("member_id_hex", entry.memberIdHex) + put("leaf_index", entry.leafIndex) + put("platform", entry.platform.wireName) + put("token_fingerprint", entry.tokenFingerprint) + put("server_pubkey_hex", entry.serverPubKeyHex) + put("owner_ts", entry.ownerTsMillis) + put("owner_sig", PushHex.of(entry.ownerSig)) + } + + // ---------------------------------------------------------------- decode + + /** + * Read a kind `447`/`448` content. + * + * An empty list means either "a request" or "nothing survived validation" — + * deliberately the same outcome, because both change no state. + */ + fun decodeTokens(content: String): List = decodeArray(content, "tokens")?.mapNotNull { decodeToken(it) } ?: emptyList() + + fun decodeRemovals(content: String): List = decodeArray(content, "removals")?.mapNotNull { decodeRemoval(it) } ?: emptyList() + + /** True when the content is a well-formed `marmot-push-v1` object at all. */ + fun isSupportedVersion(content: String): Boolean = root(content) != null + + private fun root(content: String): JsonObject? { + val obj = + try { + parser.parseToJsonElement(content) as? JsonObject + } catch (_: Exception) { + null + } ?: return null + val version = (obj["v"] as? JsonPrimitive)?.takeIf { it.isString }?.content + return if (version == VERSION) obj else null + } + + private fun decodeArray( + content: String, + member: String, + ): List? { + val obj = root(content) ?: return null + // A missing member reads as an empty array; a present non-array member + // is invalid and contributes nothing. Both are "no entries". + val array = obj[member] ?: return emptyList() + val entries = array as? JsonArray ?: return null + if (entries.size > MAX_ENTRIES) return null + return entries.mapNotNull { it as? JsonObject } + } + + private fun decodeToken(obj: JsonObject): PushTokenEntry? { + val common = decodeCommon(obj) ?: return null + val encryptedToken = + PushBase64 + .decodeOrNull(obj.stringOrNull("encrypted_token") ?: return null) + ?.takeIf { it.size == PushSignedRecord.ENCRYPTED_TOKEN_BYTES } ?: return null + return PushTokenEntry( + memberIdHex = common.memberIdHex, + leafIndex = common.leafIndex, + platform = common.platform, + tokenFingerprint = common.tokenFingerprint, + serverPubKeyHex = common.serverPubKeyHex, + relayHint = PushSignedRecord.normalizeRelayHint(obj.stringOrNull("relay_hint")), + encryptedToken = encryptedToken, + ownerTsMillis = common.ownerTsMillis, + ownerSig = common.ownerSig, + ) + } + + private fun decodeRemoval(obj: JsonObject): PushRemovalEntry? { + val common = decodeCommon(obj) ?: return null + return PushRemovalEntry( + memberIdHex = common.memberIdHex, + leafIndex = common.leafIndex, + platform = common.platform, + tokenFingerprint = common.tokenFingerprint, + serverPubKeyHex = common.serverPubKeyHex, + ownerTsMillis = common.ownerTsMillis, + ownerSig = common.ownerSig, + ) + } + + private class Common( + val memberIdHex: String, + val leafIndex: Int, + val platform: PushPlatform, + val tokenFingerprint: String, + val serverPubKeyHex: String, + val ownerTsMillis: Long, + val ownerSig: ByteArray, + ) + + /** The six members a token entry and a removal entry encode identically. */ + private fun decodeCommon(obj: JsonObject): Common? { + val memberIdHex = obj.stringOrNull("member_id_hex")?.takeIf { PushHex.isLower(it, 64) } ?: return null + val serverPubKeyHex = obj.stringOrNull("server_pubkey_hex")?.takeIf { PushHex.isLower(it, 64) } ?: return null + val leafIndex = obj.longOrNull("leaf_index")?.takeIf { it in 0..Int.MAX_VALUE.toLong() }?.toInt() ?: return null + val platform = obj.stringOrNull("platform")?.let { PushPlatform.fromWireName(it) } ?: return null + val fingerprint = obj.stringOrNull("token_fingerprint") ?: return null + if (PushSignedRecord.fingerprintBytes(fingerprint) == null) return null + val ownerTs = obj.longOrNull("owner_ts")?.takeIf { it >= 0 } ?: return null + val ownerSigHex = obj.stringOrNull("owner_sig")?.takeIf { PushHex.isLower(it, 128) } ?: return null + return Common(memberIdHex, leafIndex, platform, fingerprint, serverPubKeyHex, ownerTs, PushHex.bytes(ownerSigHex)) + } + + private fun JsonObject.stringOrNull(name: String): String? = (this[name] as? JsonPrimitive)?.takeIf { it.isString }?.content + + /** + * A JSON *number*, not a numeric string. `"leaf_index": "3"` is a different + * document from `"leaf_index": 3`, and only the latter is what the spec + * shows — accepting both would let two senders produce entries that agree + * on meaning and disagree on the digest. + */ + private fun JsonObject.longOrNull(name: String): Long? { + val primitive = this[name] as? JsonPrimitive ?: return null + if (primitive.isString) return null + return primitive.jsonPrimitive.content.toLongOrNull() + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProof.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProof.kt index 8a6e9109aa..d86f18f931 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProof.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProof.kt @@ -29,6 +29,7 @@ import com.vitorpamplona.quartz.nip01Core.crypto.EventHasher import com.vitorpamplona.quartz.nip01Core.crypto.Nip01Crypto import com.vitorpamplona.quartz.nip01Core.signers.EventTemplate import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner +import com.vitorpamplona.quartz.utils.sha256.sha256 /** The two record shapes an owner proof can cover. */ enum class PushRecordKind( @@ -227,6 +228,12 @@ object PushOwnerProof { * every leaf carries a `0x8009` identity proof, accepting a weaker legacy * form would let anyone who can produce one bypass the stronger binding the * group already guarantees. + * + * A legacy group accepts two more forms, both verification-only and never + * produced: the transitional kind [LEGACY_KIND] event deployed before `451` + * was allocated, and the raw proof — a signature directly over the 32-byte + * `SHA-256(SignedRecord)` digest. [signedRecord] supplies those canonical + * bytes lazily, so a current-profile group never computes them at all. */ fun verifyRecord( ownerSig: ByteArray, @@ -241,6 +248,7 @@ object PushOwnerProof { relayHint: String = "", encryptedTokenBase64: String = "", currentProfileGroup: Boolean, + signedRecord: (() -> ByteArray)? = null, ): Boolean { val builtTags = tags( @@ -257,7 +265,31 @@ object PushOwnerProof { val content = if (record == PushRecordKind.REMOVAL) "" else encryptedTokenBase64 if (verify(ownerSig, memberIdHex, builtTags, content, KIND)) return true if (currentProfileGroup) return false - return verify(ownerSig, memberIdHex, builtTags, content, LEGACY_KIND) + if (verify(ownerSig, memberIdHex, builtTags, content, LEGACY_KIND)) return true + val canonical = signedRecord?.invoke() ?: return false + return verifyRawDigest(ownerSig, memberIdHex, canonical) + } + + /** + * The oldest accepted form: a BIP-340 signature straight over + * `SHA-256(SignedRecord)`, with no event around it. + * + * Verification-only, and only in a legacy group. A producer MUST NOT create + * it — it binds the same fields, but through a digest an external signer + * cannot be asked to sign without handing it raw bytes, which is why the + * current form is an event id instead. + */ + fun verifyRawDigest( + ownerSig: ByteArray, + memberIdHex: HexKey, + signedRecord: ByteArray, + ): Boolean { + if (ownerSig.size != 64) return false + return try { + Nip01Crypto.verify(ownerSig, sha256(signedRecord), memberIdHex.hexToByteArray()) + } catch (_: Exception) { + false + } } /** Hex form, for embedding in a gossip record. */ diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushPlatform.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushPlatform.kt new file mode 100644 index 0000000000..d28daac9a7 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushPlatform.kt @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip05PushNotifications + +/** + * The platform a push token belongs to (`features/push-notifications.md`). + * + * Two encodings for the same thing, and both are load-bearing: [wireName] is + * what a gossip entry's `platform` member and the owner-proof tag carry, while + * [byte] is what goes into the encrypted token plaintext, the fingerprint + * preimage and the canonical [PushSignedRecord]. Keeping them on one type is + * what stops a signer and a verifier from disagreeing about which is which. + */ +enum class PushPlatform( + val wireName: String, + val byte: Byte, +) { + APNS("apns", 0x01), + FCM("fcm", 0x02), + ; + + companion object { + /** Null for an unknown platform — the entry is then advisory-invalid, not an error. */ + fun fromWireName(name: String): PushPlatform? = entries.firstOrNull { it.wireName == name } + + fun fromByte(value: Byte): PushPlatform? = entries.firstOrNull { it.byte == value } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushRecordOrdering.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushRecordOrdering.kt new file mode 100644 index 0000000000..41d6eabe2d --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushRecordOrdering.kt @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip05PushNotifications + +import com.vitorpamplona.quartz.nip01Core.core.HexKey + +/** + * The record key of a push token: `(member_id_hex, leaf_index, platform, + * server_pubkey_hex)` (`features/push-notifications.md`, "Record key and + * ordering primitive"). + * + * At most one active record exists per key per group. `leaf_index` is in the + * key deliberately: one Marmot account can hold several MLS leaves, and + * collapsing them would let one device's list entry or removal overwrite a + * sibling device's live token. `token_fingerprint` is NOT in the key — it is + * replaceable data on the record, and gating a delete on it would weaken + * tombstones. + */ +data class PushRecordKey( + val memberIdHex: HexKey, + val leafIndex: Int, + val platform: PushPlatform, + val serverPubKeyHex: HexKey, +) + +/** + * The ordering primitive for a record key: `(owner_ts, record digest)`. + * + * The `owner_ts` half is an owner-supplied latest-wins clock; the digest half + * makes two distinct records stamped in the same millisecond converge on the + * same winner everywhere. Both halves come out of fields the owner proof binds, + * so the primitive inherits `owner_sig`'s trust rather than the carrying + * event's sender. + * + * A client MUST NOT substitute the carrying event's `created_at`, arrival + * order, outer event ids, relay metadata or local receive time for this. Using + * `owner_ts` is exactly what makes a relayed kind `448` safe: the relaying + * member cannot advance or rewind a record it cannot re-sign. + */ +data class PushRecordStamp( + val ownerTsMillis: Long, + val digestHex: HexKey, +) : Comparable { + override fun compareTo(other: PushRecordStamp): Int { + val byTime = ownerTsMillis.compareTo(other.ownerTsMillis) + if (byTime != 0) return byTime + return digestHex.compareTo(other.digestHex) + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushRecordStore.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushRecordStore.kt new file mode 100644 index 0000000000..03b15f53aa --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushRecordStore.kt @@ -0,0 +1,177 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip05PushNotifications + +import com.vitorpamplona.quartz.nip01Core.core.HexKey + +/** + * One group's push token records: which token is active per record key, and + * which keys carry a tombstone (`features/push-notifications.md`, "Record + * state"). + * + * ## What it is not + * + * Never group state. Nothing here can reject, delay or reorder a group message, + * and no MLS decision may read it. It is local push routing that two members' + * clients happen to converge on. + * + * ## Why a tombstone has to be durable + * + * Owner authentication makes a record relay-portable: any current member can + * re-emit another member's still-valid signed record inside a fresh kind `448` + * at any later epoch. So a stale record's carrying epoch is unbounded, and the + * retained app-payload window cannot bound it. The per-key stamp and tombstone + * are the ONLY durable high-water marks that stop a revoked token from being + * resurrected by a relay, which is why they are cleared on exactly two events — + * a strictly-greater-stamped entry, or the owning leaf leaving the group — and + * never on a wall clock, an `owner_ts`, or an epoch count. + */ +class PushRecordStore( + val groupIdHex: HexKey, + /** + * Whether this group requires `0x8009`. It selects which owner-proof forms + * are acceptable, so it must come from the group's GroupContext rather than + * from anything a sender says. + */ + val currentProfileGroup: Boolean, +) { + private val records = mutableMapOf() + private val stamps = mutableMapOf() + private val tombstones = mutableSetOf() + + /** Every active token record, in no particular order. */ + fun active(): List = records.values.toList() + + fun activeFor(key: PushRecordKey): PushTokenEntry? = records[key] + + /** The high-water mark for a key, whether it currently holds a record or a tombstone. */ + fun stampFor(key: PushRecordKey): PushRecordStamp? = stamps[key] + + fun isTombstoned(key: PushRecordKey): Boolean = key in tombstones + + /** Restore a persisted store. Stamps and tombstones survive restarts or the guarantee is gone. */ + fun restore( + activeRecords: Collection, + persistedStamps: Map, + persistedTombstones: Collection, + ) { + records.clear() + stamps.clear() + tombstones.clear() + activeRecords.forEach { records[it.key] = it } + stamps.putAll(persistedStamps) + tombstones.addAll(persistedTombstones) + } + + fun snapshotStamps(): Map = stamps.toMap() + + fun snapshotTombstones(): Set = tombstones.toSet() + + /** + * Apply the entries of one kind `447`/`448` event. + * + * [isCurrentMember] is asked per member id because a record's authority + * comes from `owner_sig` plus current membership — never from who carried + * it. A verified entry is applied even when the sender is not its owner, + * and an entry naming a non-member is dropped even when it verifies. + * + * @return the keys whose stored record changed. + */ + fun applyTokens( + entries: List, + nowMillis: Long, + isCurrentMember: (HexKey) -> Boolean, + ): Set { + val changed = mutableSetOf() + entries.forEach { entry -> + if (entry.ownerTsMillis > nowMillis + PushGossip.OWNER_TS_MAX_FUTURE_MILLIS) return@forEach + if (!isCurrentMember(entry.memberIdHex)) return@forEach + if (!entry.verifyOwner(groupIdHex, currentProfileGroup)) return@forEach + + val key = entry.key + val stamp = entry.stamp(groupIdHex) + // Strictly greater, so re-applying the same signed record is a + // no-op whether it arrives fresh or relayed. Array position is not a + // tie-breaker: the highest stamp wins wherever it sits. + if (!stamp.wins(stamps[key])) return@forEach + + records[key] = entry + stamps[key] = stamp + tombstones.remove(key) + changed.add(key) + } + return changed + } + + /** + * Apply the entries of one kind `449` event. + * + * A removal that wins its key does two things: it deletes the record AND + * writes a tombstone at the removal's own stamp, so a token list assembled + * before the removal cannot bring the revoked token back. + * + * @return the keys whose stored record changed. + */ + fun applyRemovals( + entries: List, + nowMillis: Long, + isCurrentMember: (HexKey) -> Boolean, + ): Set { + val changed = mutableSetOf() + entries.forEach { entry -> + if (entry.ownerTsMillis > nowMillis + PushGossip.OWNER_TS_MAX_FUTURE_MILLIS) return@forEach + if (!isCurrentMember(entry.memberIdHex)) return@forEach + if (!entry.verifyOwner(groupIdHex, currentProfileGroup)) return@forEach + + val key = entry.key + val stamp = entry.stamp(groupIdHex) + if (!stamp.wins(stamps[key])) return@forEach + + records.remove(key) + stamps[key] = stamp + tombstones.add(key) + changed.add(key) + } + return changed + } + + /** + * Forget a leaf an accepted Commit removed. + * + * The whole key — record, stamp and tombstone — goes, because the leaf can + * no longer be a current member and nothing it signed can be applied again. + * A sibling leaf of the same account keeps its own records: they are + * different keys and the account is still in the group. + */ + fun forgetLeaf( + memberIdHex: HexKey, + leafIndex: Int, + ) { + val doomed = (records.keys + stamps.keys + tombstones).filter { it.memberIdHex == memberIdHex && it.leafIndex == leafIndex } + doomed.forEach { + records.remove(it) + stamps.remove(it) + tombstones.remove(it) + } + } + + private fun PushRecordStamp.wins(previous: PushRecordStamp?): Boolean = previous == null || this > previous +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushSignedRecord.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushSignedRecord.kt new file mode 100644 index 0000000000..eb1b9e0d32 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushSignedRecord.kt @@ -0,0 +1,191 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip05PushNotifications + +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.utils.sha256.sha256 + +/** + * The canonical `SignedRecord` bytes of a push token record or removal + * (`features/push-notifications.md`, "Canonical record bytes"). + * + * ```text + * SignedRecord = domain_tag + * || group_id_len[2] big-endian u16 + * || group_id[group_id_len] + * || member_id[32] + * || leaf_index[4] big-endian u32 + * || platform_byte[1] + * || server_pubkey[32] + * || token_fingerprint[12] + * || owner_ts[8] big-endian u64, milliseconds + * || relay_hint_len[2] big-endian u16, 0 when absent or for a removal + * || relay_hint[relay_hint_len] + * || encrypted_token[1084] removals omit this field + * ``` + * + * ## Why this is hand-rolled rather than a TLS vector or a QUIC varint + * + * The spec says so, in as many words: "Signers and verifiers MUST NOT + * substitute QUIC varints, TLS vectors, or a serialization-library default." + * The rest of Marmot's binary profile uses QUIC varints, so the temptation to + * reach for [TlsWriter] here is real and wrong — a varint `group_id_len` would + * be one byte where this is two, every subsequent field would shift, and the + * digest would differ from every other implementation's while still looking + * perfectly well-formed locally. + * + * ## What it is for + * + * ONLY the digest. `SHA-256(SignedRecord)` is the deterministic tie-breaker in + * the `(owner_ts, digest)` ordering primitive; it is **not** the signature + * preimage in a current group, where [PushOwnerProof]'s unpublished kind `451` + * event is. It IS the preimage for the raw legacy proof form, which we verify + * in legacy groups and never produce. + */ +object PushSignedRecord { + /** `sha256:` plus 24 hex characters — the first 12 bytes of the token hash. */ + const val FINGERPRINT_PREFIX = "sha256:" + const val FINGERPRINT_BYTES = 12 + const val FINGERPRINT_HEX_LENGTH = FINGERPRINT_BYTES * 2 + + /** `EncryptedToken` is a fixed 1084 bytes; the record embeds it verbatim. */ + const val ENCRYPTED_TOKEN_BYTES = 1084 + + /** + * The fingerprint that names a token without revealing it: + * `sha256:` + the first 24 hex characters of `SHA-256(platform_byte || device_token)`. + */ + fun fingerprintOf( + platform: PushPlatform, + deviceToken: ByteArray, + ): String { + val preimage = ByteArray(1 + deviceToken.size) + preimage[0] = platform.byte + deviceToken.copyInto(preimage, 1) + return FINGERPRINT_PREFIX + sha256(preimage).copyOfRange(0, FINGERPRINT_BYTES).toHexKey() + } + + /** The 12 raw bytes a `sha256:`-prefixed fingerprint encodes, or null when malformed. */ + fun fingerprintBytes(fingerprint: String): ByteArray? { + if (!fingerprint.startsWith(FINGERPRINT_PREFIX)) return null + val hex = fingerprint.substring(FINGERPRINT_PREFIX.length) + if (hex.length != FINGERPRINT_HEX_LENGTH) return null + if (!hex.all { it in '0'..'9' || it in 'a'..'f' }) return null + return hex.hexToByteArray() + } + + /** + * A relay hint as it is signed over: trimmed, and absent when the result is + * empty. Both halves matter — a signer that kept the untrimmed string and a + * verifier that trimmed it would compute different digests from identical + * JSON, and the record would simply never verify anywhere. + */ + fun normalizeRelayHint(relayHint: String?): String = relayHint?.trim().orEmpty() + + /** + * Build the canonical bytes. + * + * @param encryptedToken the 1084-byte token for a record entry, or null for a removal. + */ + fun encode( + record: PushRecordKind, + groupIdHex: HexKey, + memberIdHex: HexKey, + leafIndex: Int, + platform: PushPlatform, + serverPubKeyHex: HexKey, + tokenFingerprint: String, + ownerTsMillis: Long, + relayHint: String = "", + encryptedToken: ByteArray? = null, + ): ByteArray { + val domain = record.domainTag.encodeToByteArray() + val groupId = groupIdHex.hexToByteArray() + val memberId = memberIdHex.hexToByteArray() + val serverPubKey = serverPubKeyHex.hexToByteArray() + val fingerprint = requireNotNull(fingerprintBytes(tokenFingerprint)) { "malformed token fingerprint" } + + require(memberId.size == 32) { "member id must be 32 bytes" } + require(serverPubKey.size == 32) { "server pubkey must be 32 bytes" } + require(groupId.size <= 0xFFFF) { "group id too long" } + + // A removal signs a zero-length hint and omits the token entirely, so + // the two record shapes can never collide on the same bytes. + val hintBytes = + if (record == PushRecordKind.REMOVAL) { + ByteArray(0) + } else { + normalizeRelayHint(relayHint).encodeToByteArray() + } + require(hintBytes.size <= 0xFFFF) { "relay hint too long" } + + val token = + if (record == PushRecordKind.REMOVAL) { + null + } else { + requireNotNull(encryptedToken) { "a token record must carry its encrypted token" } + .also { require(it.size == ENCRYPTED_TOKEN_BYTES) { "EncryptedToken must be $ENCRYPTED_TOKEN_BYTES bytes" } } + } + + val size = + domain.size + 2 + groupId.size + 32 + 4 + 1 + 32 + FINGERPRINT_BYTES + 8 + 2 + + hintBytes.size + (token?.size ?: 0) + val out = ByteArray(size) + var at = 0 + + fun put(bytes: ByteArray) { + bytes.copyInto(out, at) + at += bytes.size + } + + fun putU16(value: Int) { + out[at++] = (value ushr 8 and 0xFF).toByte() + out[at++] = (value and 0xFF).toByte() + } + + put(domain) + putU16(groupId.size) + put(groupId) + put(memberId) + // leaf_index is u32 big-endian; an Int is the same 4 bytes for every + // index MLS can actually reach. + out[at++] = (leafIndex ushr 24 and 0xFF).toByte() + out[at++] = (leafIndex ushr 16 and 0xFF).toByte() + out[at++] = (leafIndex ushr 8 and 0xFF).toByte() + out[at++] = (leafIndex and 0xFF).toByte() + out[at++] = platform.byte + put(serverPubKey) + put(fingerprint) + for (shift in 56 downTo 0 step 8) { + out[at++] = (ownerTsMillis ushr shift and 0xFF).toByte() + } + putU16(hintBytes.size) + put(hintBytes) + token?.let { put(it) } + + return out + } + + /** `SHA-256(SignedRecord)` — the ordering tie-breaker, as lowercase hex. */ + fun digestHex(signedRecord: ByteArray): HexKey = sha256(signedRecord).toHexKey() +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushTokenEntry.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushTokenEntry.kt new file mode 100644 index 0000000000..0803e35f76 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushTokenEntry.kt @@ -0,0 +1,223 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip05PushNotifications + +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey + +/** + * One push token record as it travels inside a kind `447` or `448` app event + * (`features/push-notifications.md`, "Token entries"). + * + * The entry is self-authenticating: [ownerSig] is the owning member's proof + * over every other field, so a member that merely RELAYS the record in a kind + * `448` cannot move it to another group, repoint it at a different notification + * server or relay, swap the token, or restamp it. That is what lets a group + * converge on the full token set without every owner being online. + * + * Fields here are already validated shapes — [PushGossip.decodeTokens] drops a + * malformed entry rather than constructing one — but NOT yet verified. Whether + * the signature is good, whether the member is current, and whether the stamp + * wins its record key are all recipient decisions that need context this type + * does not have. + */ +data class PushTokenEntry( + val memberIdHex: HexKey, + val leafIndex: Int, + val platform: PushPlatform, + val tokenFingerprint: String, + val serverPubKeyHex: HexKey, + /** Already trimmed; empty means absent. */ + val relayHint: String, + /** Exactly 1084 bytes. */ + val encryptedToken: ByteArray, + val ownerTsMillis: Long, + /** Exactly 64 bytes. */ + val ownerSig: ByteArray, +) { + val key get() = PushRecordKey(memberIdHex, leafIndex, platform, serverPubKeyHex) + + val encryptedTokenBase64: String get() = PushBase64.encode(encryptedToken) + + fun signedRecord(groupIdHex: HexKey): ByteArray = + PushSignedRecord.encode( + record = PushRecordKind.TOKEN, + groupIdHex = groupIdHex, + memberIdHex = memberIdHex, + leafIndex = leafIndex, + platform = platform, + serverPubKeyHex = serverPubKeyHex, + tokenFingerprint = tokenFingerprint, + ownerTsMillis = ownerTsMillis, + relayHint = relayHint, + encryptedToken = encryptedToken, + ) + + fun stamp(groupIdHex: HexKey) = PushRecordStamp(ownerTsMillis, PushSignedRecord.digestHex(signedRecord(groupIdHex))) + + /** + * Verify [ownerSig] the way a recipient must. + * + * [currentProfileGroup] is not a courtesy flag: in a group where every leaf + * already carries a `0x8009` identity proof, accepting the weaker legacy + * proof forms would throw away a binding the group otherwise guarantees. + */ + fun verifyOwner( + groupIdHex: HexKey, + currentProfileGroup: Boolean, + ): Boolean = + PushOwnerProof.verifyRecord( + ownerSig = ownerSig, + record = PushRecordKind.TOKEN, + groupIdHex = groupIdHex, + memberIdHex = memberIdHex, + leafIndex = leafIndex, + platform = platform.wireName, + serverPubKeyHex = serverPubKeyHex, + tokenFingerprint = tokenFingerprint, + ownerTsMillis = ownerTsMillis, + relayHint = relayHint, + encryptedTokenBase64 = encryptedTokenBase64, + currentProfileGroup = currentProfileGroup, + signedRecord = { signedRecord(groupIdHex) }, + ) + + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is PushTokenEntry) return false + return memberIdHex == other.memberIdHex && + leafIndex == other.leafIndex && + platform == other.platform && + tokenFingerprint == other.tokenFingerprint && + serverPubKeyHex == other.serverPubKeyHex && + relayHint == other.relayHint && + encryptedToken.contentEquals(other.encryptedToken) && + ownerTsMillis == other.ownerTsMillis && + ownerSig.contentEquals(other.ownerSig) + } + + override fun hashCode(): Int { + var result = memberIdHex.hashCode() + result = 31 * result + leafIndex + result = 31 * result + platform.hashCode() + result = 31 * result + tokenFingerprint.hashCode() + result = 31 * result + serverPubKeyHex.hashCode() + result = 31 * result + relayHint.hashCode() + result = 31 * result + encryptedToken.contentHashCode() + result = 31 * result + ownerTsMillis.hashCode() + result = 31 * result + ownerSig.contentHashCode() + return result + } +} + +/** + * One revocation as it travels inside a kind `449` app event + * (`features/push-notifications.md`, "Removal"). + * + * It carries [leafIndex] for the same reason the record key does: without it a + * removal would revoke every sibling device's token for the same account, + * platform and server rather than the one device that asked to be forgotten. + * + * [tokenFingerprint] is signed over and states which token instance the owner + * meant to revoke, but it does NOT gate the delete — the stamp alone decides + * which write to a record key wins. A fingerprint-scoped tombstone could not + * suppress a differently-fingerprinted stale record from resurrecting the key, + * which is the whole job of a tombstone. + */ +data class PushRemovalEntry( + val memberIdHex: HexKey, + val leafIndex: Int, + val platform: PushPlatform, + val tokenFingerprint: String, + val serverPubKeyHex: HexKey, + val ownerTsMillis: Long, + val ownerSig: ByteArray, +) { + val key get() = PushRecordKey(memberIdHex, leafIndex, platform, serverPubKeyHex) + + fun signedRecord(groupIdHex: HexKey): ByteArray = + PushSignedRecord.encode( + record = PushRecordKind.REMOVAL, + groupIdHex = groupIdHex, + memberIdHex = memberIdHex, + leafIndex = leafIndex, + platform = platform, + serverPubKeyHex = serverPubKeyHex, + tokenFingerprint = tokenFingerprint, + ownerTsMillis = ownerTsMillis, + ) + + fun stamp(groupIdHex: HexKey) = PushRecordStamp(ownerTsMillis, PushSignedRecord.digestHex(signedRecord(groupIdHex))) + + fun verifyOwner( + groupIdHex: HexKey, + currentProfileGroup: Boolean, + ): Boolean = + PushOwnerProof.verifyRecord( + ownerSig = ownerSig, + record = PushRecordKind.REMOVAL, + groupIdHex = groupIdHex, + memberIdHex = memberIdHex, + leafIndex = leafIndex, + platform = platform.wireName, + serverPubKeyHex = serverPubKeyHex, + tokenFingerprint = tokenFingerprint, + ownerTsMillis = ownerTsMillis, + currentProfileGroup = currentProfileGroup, + signedRecord = { signedRecord(groupIdHex) }, + ) + + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is PushRemovalEntry) return false + return memberIdHex == other.memberIdHex && + leafIndex == other.leafIndex && + platform == other.platform && + tokenFingerprint == other.tokenFingerprint && + serverPubKeyHex == other.serverPubKeyHex && + ownerTsMillis == other.ownerTsMillis && + ownerSig.contentEquals(other.ownerSig) + } + + override fun hashCode(): Int { + var result = memberIdHex.hashCode() + result = 31 * result + leafIndex + result = 31 * result + platform.hashCode() + result = 31 * result + tokenFingerprint.hashCode() + result = 31 * result + serverPubKeyHex.hashCode() + result = 31 * result + ownerTsMillis.hashCode() + result = 31 * result + ownerSig.contentHashCode() + return result + } +} + +/** Hex helpers that hold the spec to LOWERCASE, which [com.vitorpamplona.quartz.utils.Hex] deliberately does not. */ +internal object PushHex { + fun isLower( + value: String, + length: Int, + ): Boolean = value.length == length && value.all { it in '0'..'9' || it in 'a'..'f' } + + fun bytes(value: String): ByteArray = value.hexToByteArray() + + fun of(value: ByteArray): HexKey = value.toHexKey() +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/README.md b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/README.md new file mode 100644 index 0000000000..5cb2504ef1 --- /dev/null +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/README.md @@ -0,0 +1,106 @@ +# Marmot push notifications + +`features/push-notifications.md`. Optional: a group MUST keep working when no +member supports push, and nothing in this package can affect group state. + +## The shape on the wire + +Four kinds, three of them ordinary unsigned inner app payloads carried inside +group messages: + +| kind | what it is | file | +|------|------------|------| +| 447 | token request (empty array) or self-update | `TokenRequestEvent` | +| 448 | list response, including other members' records | `TokenListEvent` | +| 449 | removal | `TokenRemovalEvent` | +| 446 | the trigger rumor to a notification server | `NotificationRequestEvent` | + +Kind 446 is the odd one: it leaves the group entirely, so the Nostr binding +owns its seal, its recipient addressing and its publish targets. + +All four carry `["v", "marmot-push-v1"]`. **This is not a rename of the earlier +`mip05-v1`.** That version carried tokens in `token` tags with empty content, +left the sender's leaf implicit, defined no removals and predated owner +authentication entirely. The two are not interoperable, and refusing the old +string is how they stay apart. + +## Owner authentication is the whole design + +A record's authority comes from `owner_sig` and current group membership — +never from who carried it. That is what lets one member relay another's records +in a kind 448 so a group converges without every owner being online, while +stopping the relayer from moving a record to another group, repointing it at a +different notification server or relay, swapping the token, or restamping it. + +The proof (`PushOwnerProof`) is a BIP-340 signature over the id of an exact, +**unpublished** kind 451 Nostr event. An event id is a ready-made canonical +digest over precisely the tuple that needs binding, and an external signer can +produce it without ever being handed raw bytes. Only the 64-byte signature +travels. + +`PushSignedRecord` is the other canonical encoding — a fixed-width byte string +whose SHA-256 is the ordering tie-breaker, and, in a legacy group only, the +preimage of the oldest accepted proof form. It deliberately uses `u16`/`u32`/ +`u64` big-endian fields rather than the Marmot binary profile's QUIC varints; +the spec says so in as many words, and substituting a varint would shift every +subsequent field while still looking correct locally. + +## Ordering, and why tombstones are durable + +The record key is `(member_id_hex, leaf_index, platform, server_pubkey_hex)`. +`leaf_index` is in it because one account can hold several MLS leaves, and +collapsing them would let one device revoke a sibling's live token. + +A write wins only when its `(owner_ts, SHA-256(SignedRecord))` is strictly +greater than the key's stored stamp. Never the carrying event's `created_at`, +arrival order, outer event ids, or local receive time — using `owner_ts` is +exactly what makes a relayed kind 448 safe, because the relayer cannot re-sign +it. + +A winning removal writes a **tombstone** at its own stamp, and that tombstone is +durable. Any current member can re-emit a revoked-but-still-signed record in a +fresh kind 448 at any later epoch, so the relayed record's carrying epoch is +unbounded and the retained app-payload window cannot bound it. The per-key stamp +is the only thing that recognises such a record as stale. It is cleared on +exactly two events — a strictly-greater-stamped registration, or the owning leaf +leaving the group — and never on a wall clock, an `owner_ts` or an epoch count. +`MarmotPushStateStore` exists for that reason alone; the in-memory default lets +a stale relay win exactly once after a restart. + +## Everything here is advisory + +A malformed entry, a signature that does not verify, an entry naming a +non-member, a removal matching nothing, a list that loses an ordering race, a +replayed trigger — every one of them drops the offending datum and continues. +None may reject a group message, mutate MLS state, or change which commit wins. +The decoders return what they could read rather than throwing, and +`MarmotPushCoordinator` catches at its own boundary, so a surprise cannot reach +the ingest path that decides whether the carrying kind 445 was valid. + +## What is wired, and what is not + +Wired: `MarmotPushCoordinator` (in `commons`) produces and consumes 447/448/449 +with real kind 451 proofs, assembles the 446 rumor, and persists records, stamps +and tombstones per group. Amethyst holds one per account, applies inbound gossip +in `DecryptAndIndexProcessor`, and answers a peer's request with a kind 448. + +**Not wired: registering a token of our own.** `buildSelfUpdate` needs a device +token and Amethyst's notification-server public key. The server key is a +deployment decision — a notification server can only wake the application whose +platform push credentials it holds, so the spec defines no discovery for it and +each application ships its own. Until that key exists, this client is a correct +participant in other members' push routing and announces nothing of its own. + +Nothing here publishes a kind 446 either. Selecting records, sealing, wrapping +and choosing publish targets belong to the Nostr binding; `buildTrigger` hands +back the rumor and stops. + +## Interop + +MDK implements the same adopted shape (`crates/marmot-app/src/notifications.rs`), +but its `wn` CLI exposes no push commands — `notifications` has only +`subscribe` — so there is no way to drive push through the interop harness the +way `amy`/`wn` drive messages, media and streams. Coverage is the spec's own +published removal fixture (event id and `owner_sig`, asserted in +`PushOwnerProofTest`), byte-layout assertions built independently of the encoder, +and the ordering and tombstone rules exercised in `PushRecordStoreTest`. diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TagArrayExt.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TagArrayExt.kt index 5895189d5c..47a2bff2cb 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TagArrayExt.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TagArrayExt.kt @@ -20,13 +20,7 @@ */ package com.vitorpamplona.quartz.marmot.mip05PushNotifications -import com.vitorpamplona.quartz.marmot.mip00KeyPackages.tags.EncodingTag -import com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags.TokenTag import com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags.VersionTag import com.vitorpamplona.quartz.nip01Core.core.TagArray fun TagArray.notificationVersion() = firstNotNullOfOrNull(VersionTag::parse) - -fun TagArray.notificationEncoding() = firstNotNullOfOrNull(EncodingTag::parse) - -fun TagArray.tokens() = mapNotNull(TokenTag::parse) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenEncryption.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenEncryption.kt index b9c930010d..bde4903873 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenEncryption.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenEncryption.kt @@ -20,9 +20,6 @@ */ package com.vitorpamplona.quartz.marmot.mip05PushNotifications -import com.vitorpamplona.quartz.marmot.mip05PushNotifications.TokenEncryption.PLATFORM_APNS -import com.vitorpamplona.quartz.marmot.mip05PushNotifications.TokenEncryption.PLATFORM_FCM -import com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags.TokenTag import com.vitorpamplona.quartz.nip44Encryption.crypto.ChaCha20Poly1305 import com.vitorpamplona.quartz.utils.RandomInstance import com.vitorpamplona.quartz.utils.Secp256k1Instance @@ -41,11 +38,11 @@ import kotlin.io.encoding.ExperimentalEncodingApi * * Key derivation (MIP-05 §"Key Derivation"): * 1. ECDH: shared_x = secp256k1_ecdh(ephemeral_privkey, server_pubkey) — raw 32-byte x - * 2. PRK = HKDF-Extract(salt="mip05-v1", IKM=shared_x) - * 3. encryption_key = HKDF-Expand(PRK, info="mip05-token-encryption", 32) + * 2. PRK = HKDF-Extract(salt="marmot-push-token-v1", IKM=shared_x) + * 3. encryption_key = HKDF-Expand(PRK, info="marmot-push-token-encryption", 32) * 4. Encrypt padded plaintext with ChaCha20-Poly1305(key, nonce, plaintext, aad="") * - * Platform values: 0x01 = APNs, 0x02 = FCM + * Platform values live on [PushPlatform]. */ object TokenEncryption { /** Token plaintext MUST be exactly 1024 bytes per MIP-05. */ @@ -55,35 +52,32 @@ object TokenEncryption { private const val HEADER_SIZE = 3 // platform(1) + token_length(2) private const val MAX_TOKEN_SIZE = PADDED_PAYLOAD_SIZE - HEADER_SIZE - private val HKDF_SALT = "mip05-v1".encodeToByteArray() - private val HKDF_INFO = "mip05-token-encryption".encodeToByteArray() + private val HKDF_SALT = "marmot-push-token-v1".encodeToByteArray() + private val HKDF_INFO = "marmot-push-token-encryption".encodeToByteArray() private val EMPTY_AAD = ByteArray(0) - const val PLATFORM_APNS: Byte = 0x01 - const val PLATFORM_FCM: Byte = 0x02 - /** * Encrypts a device token for a notification server. * - * @param platform platform identifier (PLATFORM_APNS or PLATFORM_FCM) - * @param deviceToken raw device token bytes + * @param platform the owning platform + * @param deviceToken raw device token bytes, 1..1021 * @param serverPubKey 32-byte notification server public key - * @return base64-encoded EncryptedToken (280 bytes when decoded) + * @return base64-encoded EncryptedToken (1084 bytes when decoded) */ @OptIn(ExperimentalEncodingApi::class) fun encrypt( - platform: Byte, + platform: PushPlatform, deviceToken: ByteArray, serverPubKey: ByteArray, ): String { - require(deviceToken.size <= MAX_TOKEN_SIZE) { - "Device token too large: ${deviceToken.size} bytes, max $MAX_TOKEN_SIZE" + require(deviceToken.size in 1..MAX_TOKEN_SIZE) { + "Device token must be 1..$MAX_TOKEN_SIZE bytes, got ${deviceToken.size}" } require(serverPubKey.size == PUBKEY_SIZE) { "Server pubkey must be $PUBKEY_SIZE bytes" } // Build padded payload: platform(1) || token_length(2 BE) || token || random_padding val payload = ByteArray(PADDED_PAYLOAD_SIZE) - payload[0] = platform + payload[0] = platform.byte payload[1] = (deviceToken.size ushr 8 and 0xFF).toByte() payload[2] = (deviceToken.size and 0xFF).toByte() deviceToken.copyInto(payload, HEADER_SIZE) @@ -110,7 +104,7 @@ object TokenEncryption { val ciphertextWithTag = ChaCha20Poly1305.encrypt(payload, EMPTY_AAD, nonce, encryptionKey) // Assemble: ephemeral_pubkey(32) || nonce(12) || ciphertext+tag(1040) - val result = ByteArray(TokenTag.ENCRYPTED_TOKEN_SIZE) + val result = ByteArray(PushSignedRecord.ENCRYPTED_TOKEN_BYTES) ephemeralPubKey.copyInto(result, 0) nonce.copyInto(result, PUBKEY_SIZE) ciphertextWithTag.copyInto(result, PUBKEY_SIZE + NONCE_SIZE) @@ -132,8 +126,8 @@ object TokenEncryption { serverPrivKey: ByteArray, ): DecryptedToken { val data = Base64.decode(encryptedTokenBase64) - require(data.size == TokenTag.ENCRYPTED_TOKEN_SIZE) { - "EncryptedToken must be ${TokenTag.ENCRYPTED_TOKEN_SIZE} bytes, got ${data.size}" + require(data.size == PushSignedRecord.ENCRYPTED_TOKEN_BYTES) { + "EncryptedToken must be ${PushSignedRecord.ENCRYPTED_TOKEN_BYTES} bytes, got ${data.size}" } // Parse components @@ -154,11 +148,14 @@ object TokenEncryption { // Parse payload: platform(1) || token_length(2 BE) || token || padding val platform = payload[0] val tokenLength = ((payload[1].toInt() and 0xFF) shl 8) or (payload[2].toInt() and 0xFF) - require(tokenLength in 0..MAX_TOKEN_SIZE) { "Invalid token length: $tokenLength" } + require(tokenLength in 1..MAX_TOKEN_SIZE) { "Invalid token length: $tokenLength" } val deviceToken = payload.copyOfRange(HEADER_SIZE, HEADER_SIZE + tokenLength) - return DecryptedToken(platform, deviceToken) + return DecryptedToken( + requireNotNull(PushPlatform.fromByte(platform)) { "Invalid platform byte: $platform" }, + deviceToken, + ) } /** @@ -181,8 +178,7 @@ object TokenEncryption { * Result of decrypting an EncryptedToken. */ data class DecryptedToken( - /** Platform identifier: [PLATFORM_APNS] or [PLATFORM_FCM] */ - val platform: Byte, + val platform: PushPlatform, /** Raw device token bytes */ val deviceToken: ByteArray, ) { @@ -193,7 +189,7 @@ object TokenEncryption { } override fun hashCode(): Int { - var result = platform.toInt() + var result = platform.hashCode() result = 31 * result + deviceToken.contentHashCode() return result } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenListEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenListEvent.kt index cd518b0e0e..d07e5a6234 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenListEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenListEvent.kt @@ -21,7 +21,7 @@ package com.vitorpamplona.quartz.marmot.mip05PushNotifications import androidx.compose.runtime.Immutable -import com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags.TokenTagData +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags.VersionTag import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder @@ -29,18 +29,17 @@ import com.vitorpamplona.quartz.nip01Core.signers.eventTemplate import com.vitorpamplona.quartz.utils.TimeUtils /** - * Marmot Token List Response Event (MIP-05) — kind 448. + * Marmot push token list response — kind 448 + * (`features/push-notifications.md`, "List response"). * - * Unsigned application message sent inside a GroupEvent (kind:445) in response - * to a TokenRequestEvent (kind:447). Contains the responder's complete view - * of all active encrypted device tokens in the group. + * The responder's view of the group's active records, INCLUDING records it + * learned from other members. Relaying is the point: each entry keeps its + * original owner's `owner_sig` and `owner_ts` unchanged, so a member who has + * been offline can be brought up to date by anyone. A responder cannot mint a + * record for a member whose signature it does not hold, and cannot advance or + * rewind one it merely carries. * - * Token tags include a leaf_index field (4th value) to identify which - * MLS leaf owns each token. An "e" tag references the kind:447 event - * this is responding to. - * - * Members SHOULD add random delay (0-2s) before responding. - * MUST remain unsigned (no sig field) per MIP-03 security requirements. + * Unsigned, like every inner app payload. */ @Immutable class TokenListEvent( @@ -51,23 +50,17 @@ class TokenListEvent( content: String, sig: HexKey, ) : Event(id, pubKey, createdAt, KIND, tags, content, sig) { - /** All known encrypted tokens with their leaf indices */ - fun tokens() = tags.tokens() - - /** Event ID of the kind:447 request this responds to */ - fun requestEventId() = tags.firstOrNull { it.size >= 2 && it[0] == "e" }?.get(1) + fun entries() = PushGossip.decodeTokens(content) companion object { const val KIND = 448 fun build( - allTokens: List, - requestEventId: HexKey, + entries: List, createdAt: Long = TimeUtils.now(), initializer: TagArrayBuilder.() -> Unit = {}, - ) = eventTemplate(KIND, "", createdAt) { - tokens(allTokens) - add(arrayOf("e", requestEventId)) + ) = eventTemplate(KIND, PushGossip.encodeTokens(entries), createdAt) { + addUnique(VersionTag.assemble()) initializer() } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenRemovalEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenRemovalEvent.kt index 1d51545f16..7811527e5b 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenRemovalEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenRemovalEvent.kt @@ -21,23 +21,25 @@ package com.vitorpamplona.quartz.marmot.mip05PushNotifications import androidx.compose.runtime.Immutable +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags.VersionTag import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder import com.vitorpamplona.quartz.nip01Core.signers.eventTemplate import com.vitorpamplona.quartz.utils.TimeUtils /** - * Marmot Token Removal Event (MIP-05) — kind 449. + * Marmot push token removal — kind 449 + * (`features/push-notifications.md`, "Removal"). * - * Unsigned application message sent inside a GroupEvent (kind:445) when a device - * leaves a group or wants to disable push notifications. + * A removal names one device's record exactly: the `leaf_index` in each entry + * is what stops a revocation from taking a sibling device's live token with it. + * A winning removal does not just delete — it leaves a tombstone at its own + * stamp, so a token list assembled before the removal cannot resurrect the + * revoked token when it finally arrives. * - * Per MIP-05 this event MUST have **no tags**. The MLS leaf index is implicit - * from the MLS sender identity; receiving clients MUST remove the token for - * the identified leaf. Adding extra tags could leak metadata or be rejected - * by strict MIP-05 validators (e.g. the MDK reference). - * - * MUST remain unsigned (no sig field) per MIP-03 security requirements. + * Unsigned, like every inner app payload; each entry carries its own + * `owner_sig`. */ @Immutable class TokenRemovalEvent( @@ -48,9 +50,18 @@ class TokenRemovalEvent( content: String, sig: HexKey, ) : Event(id, pubKey, createdAt, KIND, tags, content, sig) { + fun entries() = PushGossip.decodeRemovals(content) + companion object { const val KIND = 449 - fun build(createdAt: Long = TimeUtils.now()) = eventTemplate(KIND, "", createdAt) + fun build( + entries: List, + createdAt: Long = TimeUtils.now(), + initializer: TagArrayBuilder.() -> Unit = {}, + ) = eventTemplate(KIND, PushGossip.encodeRemovals(entries), createdAt) { + addUnique(VersionTag.assemble()) + initializer() + } } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenRequestEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenRequestEvent.kt index f0ca609576..eeab739d94 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenRequestEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/TokenRequestEvent.kt @@ -21,7 +21,7 @@ package com.vitorpamplona.quartz.marmot.mip05PushNotifications import androidx.compose.runtime.Immutable -import com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags.TokenTagData +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags.VersionTag import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder @@ -29,16 +29,16 @@ import com.vitorpamplona.quartz.nip01Core.signers.eventTemplate import com.vitorpamplona.quartz.utils.TimeUtils /** - * Marmot Token Request Event (MIP-05) — kind 447. + * Marmot push token request / self-update — kind 447 + * (`features/push-notifications.md`, "Request and update"). * - * Unsigned application message sent inside a GroupEvent (kind:445) when a device - * joins a group, needs to refresh its token view, or has a token change. + * One kind carries two intents, told apart by the array alone: a non-empty + * `tokens` array announces the sender's own current record, an empty one asks + * everyone else to share theirs. An empty request changes no state anywhere, so + * nothing has to distinguish them beyond counting. * - * Includes the sender's own encrypted token in "token" tags to bootstrap - * the device into the group's notification system immediately. - * - * The MLS leaf index is implicit from the MLS sender identity. - * MUST remain unsigned (no sig field) per MIP-03 security requirements. + * An unsigned Marmot app payload like every other inner event — it MUST NOT + * carry a `sig`. Its authority lives entirely in each entry's `owner_sig`. */ @Immutable class TokenRequestEvent( @@ -49,19 +49,27 @@ class TokenRequestEvent( content: String, sig: HexKey, ) : Event(id, pubKey, createdAt, KIND, tags, content, sig) { - /** Encrypted tokens included with this request (sender's own tokens) */ - fun tokens() = tags.tokens() + /** The records this event announces; empty for a request. */ + fun entries() = PushGossip.decodeTokens(content) + + fun isRequest() = entries().isEmpty() companion object { const val KIND = 447 fun build( - ownTokens: List, + entries: List, createdAt: Long = TimeUtils.now(), initializer: TagArrayBuilder.() -> Unit = {}, - ) = eventTemplate(KIND, "", createdAt) { - tokens(ownTokens) + ) = eventTemplate(KIND, PushGossip.encodeTokens(entries), createdAt) { + addUnique(VersionTag.assemble()) initializer() } + + /** The empty form: "share your records with me." */ + fun buildRequest( + createdAt: Long = TimeUtils.now(), + initializer: TagArrayBuilder.() -> Unit = {}, + ) = build(emptyList(), createdAt, initializer) } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/tags/TokenTag.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/tags/TokenTag.kt deleted file mode 100644 index 5edbadf60f..0000000000 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/tags/TokenTag.kt +++ /dev/null @@ -1,86 +0,0 @@ -/* - * Copyright (c) 2025 Vitor Pamplona - * - * Permission is hereby granted, free of charge, to any person obtaining a copy of - * this software and associated documentation files (the "Software"), to deal in - * the Software without restriction, including without limitation the rights to use, - * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the - * Software, and to permit persons to whom the Software is furnished to do so, - * subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR - * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ -package com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags - -import androidx.compose.runtime.Immutable -import com.vitorpamplona.quartz.nip01Core.core.HexKey -import com.vitorpamplona.quartz.nip01Core.core.has -import com.vitorpamplona.quartz.utils.ensure - -/** - * Encrypted token tag for push notification token distribution (kinds 447, 448). - * - * Each EncryptedToken is exactly 280 bytes: - * ephemeral_pubkey(32) || nonce(12) || ciphertext(236) - * - * The token payload inside is padded to 220 bytes: - * platform(1) || token_length(2 BE) || device_token(N) || random_padding(220-3-N) - * - * Platform values: 0x01 = APNs, 0x02 = FCM. - */ -@Immutable -data class TokenTagData( - /** Base64-encoded EncryptedToken (1084 bytes when decoded per MIP-05) */ - val encryptedToken: String, - /** Hex-encoded notification server public key */ - val serverPubKey: HexKey, - /** Relay hint URL for finding the server's kind:10050 event */ - val relayHint: String, - /** MLS leaf index of the token owner (only present in kind:448 responses) */ - val leafIndex: Int? = null, -) - -class TokenTag { - companion object { - const val TAG_NAME = "token" - - /** - * Expected decoded size of an EncryptedToken per MIP-05: - * ephemeral_pubkey(32) || nonce(12) || ciphertext(1024 + 16 tag) = 1084 bytes. - */ - const val ENCRYPTED_TOKEN_SIZE = 1084 - - fun parse(tag: Array): TokenTagData? { - ensure(tag.has(3) && tag[0] == TAG_NAME) { return null } - ensure(tag[1].isNotEmpty()) { return null } - ensure(tag[2].length == 64) { return null } - ensure(tag[3].isNotEmpty()) { return null } - - val leafIndex = tag.getOrNull(4)?.toIntOrNull() - - return TokenTagData( - encryptedToken = tag[1], - serverPubKey = tag[2], - relayHint = tag[3], - leafIndex = leafIndex, - ) - } - - fun assemble(data: TokenTagData): Array = - if (data.leafIndex != null) { - arrayOf(TAG_NAME, data.encryptedToken, data.serverPubKey, data.relayHint, data.leafIndex.toString()) - } else { - arrayOf(TAG_NAME, data.encryptedToken, data.serverPubKey, data.relayHint) - } - - fun assemble(tokens: List) = tokens.map { assemble(it) } - } -} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/tags/VersionTag.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/tags/VersionTag.kt index 87542573d1..20d94598e9 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/tags/VersionTag.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/tags/VersionTag.kt @@ -20,17 +20,23 @@ */ package com.vitorpamplona.quartz.marmot.mip05PushNotifications.tags +import com.vitorpamplona.quartz.marmot.mip05PushNotifications.PushGossip import com.vitorpamplona.quartz.nip01Core.core.has import com.vitorpamplona.quartz.utils.ensure /** - * Version tag for Marmot push notification events (kind 446). - * Current version: "mip05-v1". + * The `v` tag every push event carries — kinds 446, 447, 448 and 449. + * + * A recipient MUST reject any other value. `marmot-push-v1` is not a rename of + * the earlier exploratory `mip05-v1`: that version carried tokens in tags with + * an empty content, left the sender's leaf implicit, defined no removals and + * predated owner authentication entirely. The two are not interoperable, and + * refusing the old string is how they stay apart. */ class VersionTag { companion object { const val TAG_NAME = "v" - const val CURRENT_VERSION = "mip05-v1" + const val CURRENT_VERSION = PushGossip.VERSION fun parse(tag: Array): String? { ensure(tag.has(1) && tag[0] == TAG_NAME) { return null } diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushGossipTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushGossipTest.kt new file mode 100644 index 0000000000..0689bb1ad9 --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushGossipTest.kt @@ -0,0 +1,184 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip05PushNotifications + +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFalse +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * `features/push-notifications.md`, "Token gossip event shapes" and + * "Validation". + * + * Everything push decodes is advisory, so the whole surface here is about + * DROPPING things quietly and correctly: a bad entry goes, the rest of the + * array stays, and the group message that carried it is never in question. + */ +class PushGossipTest { + private val member = "f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9" + private val server = "2f8bde4d1a07209355b4a7250a5c5128e88b84bddc619ab7cba8d569b240efe4" + private val fingerprint = "sha256:000102030405060708090a0b" + private val sig = "11".repeat(64) + private val token = PushBase64.encode(ByteArray(PushSignedRecord.ENCRYPTED_TOKEN_BYTES) { it.toByte() }) + + private fun tokenJson( + overrides: Map = emptyMap(), + drop: Set = emptySet(), + ): String { + val members = + linkedMapOf( + "member_id_hex" to "\"$member\"", + "leaf_index" to "3", + "platform" to "\"apns\"", + "token_fingerprint" to "\"$fingerprint\"", + "server_pubkey_hex" to "\"$server\"", + "encrypted_token" to "\"$token\"", + "owner_ts" to "1735680000000", + "owner_sig" to "\"$sig\"", + ) + overrides.forEach { (k, v) -> members[k] = v } + drop.forEach { members.remove(it) } + val entry = members.entries.joinToString(",") { "\"${it.key}\":${it.value}" } + return """{"v":"marmot-push-v1","tokens":[{$entry}]}""" + } + + @Test + fun aWellFormedEntryRoundTrips() { + val entries = PushGossip.decodeTokens(tokenJson()) + assertEquals(1, entries.size) + val entry = entries.single() + assertEquals(member, entry.memberIdHex) + assertEquals(3, entry.leafIndex) + assertEquals(PushPlatform.APNS, entry.platform) + assertEquals(1735680000000L, entry.ownerTsMillis) + assertEquals(PushSignedRecord.ENCRYPTED_TOKEN_BYTES, entry.encryptedToken.size) + assertEquals(entries, PushGossip.decodeTokens(PushGossip.encodeTokens(entries))) + } + + @Test + fun anAbsentHintSurvivesTheRoundTripAsAbsent() { + // "" and omitted have to mean the same thing on both sides, because the + // owner proof signed one of them and a verifier reconstructs the other. + val withBlank = PushGossip.decodeTokens(tokenJson(mapOf("relay_hint" to "\" \""))).single() + assertEquals("", withBlank.relayHint) + val reEncoded = PushGossip.encodeTokens(listOf(withBlank)) + assertFalse(reEncoded.contains("relay_hint")) + } + + @Test + fun onlyTheAdoptedVersionIsRead() { + // The earlier exploratory shape is not a compatible predecessor, and + // reading it would mean reading records that predate owner + // authentication entirely. + assertTrue(PushGossip.decodeTokens(tokenJson().replace("marmot-push-v1", "mip05-v1")).isEmpty()) + assertFalse(PushGossip.isSupportedVersion("""{"v":"mip05-v1","tokens":[]}""")) + assertTrue(PushGossip.isSupportedVersion("""{"v":"marmot-push-v1"}""")) + } + + @Test + fun aMissingTokensMemberIsAnEmptyArray() { + assertTrue(PushGossip.decodeTokens("""{"v":"marmot-push-v1"}""").isEmpty()) + // A present non-array member contributes no entries either. + assertTrue(PushGossip.decodeTokens("""{"v":"marmot-push-v1","tokens":{}}""").isEmpty()) + } + + @Test + fun anOversizedArrayIsInvalidInItsEntirety() { + // Not "the first 32 apply" — the whole array goes, BEFORE any signature + // is verified, so an oversized array cannot buy unbounded verification. + val entry = tokenJson().substringAfter("\"tokens\":[").removeSuffix("]}") + val thirtyThree = """{"v":"marmot-push-v1","tokens":[${List(33) { entry }.joinToString(",")}]}""" + assertTrue(PushGossip.decodeTokens(thirtyThree).isEmpty()) + } + + @Test + fun aMalformedEntryIsDroppedOnItsOwn() { + val good = tokenJson().substringAfter("\"tokens\":[").removeSuffix("]}") + val bad = good.replace("\"$member\"", "\"not-hex\"") + val mixed = """{"v":"marmot-push-v1","tokens":[$bad,$good]}""" + assertEquals(1, PushGossip.decodeTokens(mixed).size) + } + + @Test + fun everyPerFieldRuleRejectsItsOwnEntry() { + // Uppercase hex is rejected: the spec says lowercase, and a + // case-insensitive reader would derive a different `member_id_hex` + // string for the same key. + assertTrue(PushGossip.decodeTokens(tokenJson(mapOf("member_id_hex" to "\"${member.uppercase()}\""))).isEmpty()) + assertTrue(PushGossip.decodeTokens(tokenJson(mapOf("server_pubkey_hex" to "\"abc\""))).isEmpty()) + assertTrue(PushGossip.decodeTokens(tokenJson(mapOf("platform" to "\"web\""))).isEmpty()) + assertTrue(PushGossip.decodeTokens(tokenJson(mapOf("token_fingerprint" to "\"sha256:00\""))).isEmpty()) + assertTrue(PushGossip.decodeTokens(tokenJson(mapOf("owner_sig" to "\"${"11".repeat(63)}\""))).isEmpty()) + assertTrue(PushGossip.decodeTokens(tokenJson(mapOf("owner_ts" to "-1"))).isEmpty()) + // A token that decodes to the wrong length is not an EncryptedToken. + assertTrue(PushGossip.decodeTokens(tokenJson(mapOf("encrypted_token" to "\"${PushBase64.encode(ByteArray(10))}\""))).isEmpty()) + assertTrue(PushGossip.decodeTokens(tokenJson(drop = setOf("leaf_index"))).isEmpty()) + } + + @Test + fun aNumericStringIsNotANumber() { + // `"leaf_index": "3"` is a different document from `"leaf_index": 3`. + // Accepting both would let two senders agree on meaning and disagree on + // the digest that breaks their ordering ties. + assertTrue(PushGossip.decodeTokens(tokenJson(mapOf("leaf_index" to "\"3\""))).isEmpty()) + assertTrue(PushGossip.decodeTokens(tokenJson(mapOf("owner_ts" to "\"1735680000000\""))).isEmpty()) + } + + @Test + fun unknownMembersAreIgnored() { + assertEquals(1, PushGossip.decodeTokens(tokenJson(mapOf("something_new" to "\"whatever\""))).size) + } + + @Test + fun aRemovalCarriesNoHintAndNoToken() { + val removals = + PushGossip.decodeRemovals( + """ + {"v":"marmot-push-v1","removals":[{ + "member_id_hex":"$member","leaf_index":3,"platform":"fcm", + "token_fingerprint":"$fingerprint","server_pubkey_hex":"$server", + "owner_ts":1735680000000,"owner_sig":"$sig"}]} + """.trimIndent(), + ) + assertEquals(1, removals.size) + val encoded = PushGossip.encodeRemovals(removals) + assertFalse(encoded.contains("encrypted_token")) + assertFalse(encoded.contains("relay_hint")) + assertEquals(removals, PushGossip.decodeRemovals(encoded)) + } + + @Test + fun garbageIsNotAnError() { + assertTrue(PushGossip.decodeTokens("not json at all").isEmpty()) + assertTrue(PushGossip.decodeTokens("[]").isEmpty()) + assertTrue(PushGossip.decodeRemovals("").isEmpty()) + assertNull(null) + } + + @Test + fun anEmptyRequestIsAWellFormedEmptyArray() { + val request = PushGossip.encodeRequest() + assertTrue(PushGossip.isSupportedVersion(request)) + assertTrue(PushGossip.decodeTokens(request).isEmpty()) + } +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProofTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProofTest.kt index 532ed893a1..6df7909148 100644 --- a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProofTest.kt +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushOwnerProofTest.kt @@ -22,6 +22,8 @@ package com.vitorpamplona.quartz.marmot.mip05PushNotifications import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.Nip01Crypto +import com.vitorpamplona.quartz.utils.sha256.sha256 import kotlin.test.Test import kotlin.test.assertEquals import kotlin.test.assertFalse @@ -152,6 +154,65 @@ class PushOwnerProofTest { } /** A removal carries no relay hint and no token, whatever the caller passes. */ + @Test + fun aLegacyGroupAcceptsTheRawDigestProofAndACurrentOneDoesNot() { + // The oldest form: a signature straight over SHA-256(SignedRecord), + // with no event around it. Verification-only and never produced — but a + // legacy group can still hold a member that only ever made these, and + // refusing them there would silently strand that member's routing. + val priv = ByteArray(32).also { it[31] = 3 } + val signedRecord = { + PushSignedRecord.encode( + record = PushRecordKind.REMOVAL, + groupIdHex = groupId, + memberIdHex = member, + leafIndex = 3, + platform = PushPlatform.APNS, + serverPubKeyHex = serverPubKey, + tokenFingerprint = fingerprint, + ownerTsMillis = ownerTs, + ) + } + val ownerSig = Nip01Crypto.sign(sha256(signedRecord()), priv) + + fun verify(currentProfileGroup: Boolean) = + PushOwnerProof.verifyRecord( + ownerSig = ownerSig, + record = PushRecordKind.REMOVAL, + groupIdHex = groupId, + memberIdHex = member, + leafIndex = 3, + platform = "apns", + serverPubKeyHex = serverPubKey, + tokenFingerprint = fingerprint, + ownerTsMillis = ownerTs, + currentProfileGroup = currentProfileGroup, + signedRecord = signedRecord, + ) + + assertTrue(verify(currentProfileGroup = false)) + // In a group where every leaf already carries a 0x8009 identity proof, + // accepting the weaker form would throw away a binding the group + // otherwise guarantees. + assertFalse(verify(currentProfileGroup = true)) + // And without the canonical bytes there is nothing to check it against, + // so a caller that does not supply them simply gets a no. + assertFalse( + PushOwnerProof.verifyRecord( + ownerSig = ownerSig, + record = PushRecordKind.REMOVAL, + groupIdHex = groupId, + memberIdHex = member, + leafIndex = 3, + platform = "apns", + serverPubKeyHex = serverPubKey, + tokenFingerprint = fingerprint, + ownerTsMillis = ownerTs, + currentProfileGroup = false, + ), + ) + } + @Test fun aRemovalAlwaysEncodesAnEmptyRelayHint() { val withHint = diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushRecordStoreTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushRecordStoreTest.kt new file mode 100644 index 0000000000..63ceab81a1 --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushRecordStoreTest.kt @@ -0,0 +1,295 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip05PushNotifications + +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.Nip01Crypto +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFalse +import kotlin.test.assertNotNull +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * `features/push-notifications.md`, "Record state". + * + * The store's whole job is convergence: two members who see the same records in + * different orders must end up with the same active set. Every test here is + * therefore about a decision the store must NOT make on arrival order, sender + * identity, or array position. + */ +class PushRecordStoreTest { + private val groupId = "000102030405060708090a0b0c0d0e0f" + private val server = "2f8bde4d1a07209355b4a7250a5c5128e88b84bddc619ab7cba8d569b240efe4" + private val now = 1735680000000L + + private val alicePriv = ByteArray(32).also { it[31] = 3 } + private val bobPriv = ByteArray(32).also { it[31] = 5 } + private val alice = Nip01Crypto.pubKeyCreate(alicePriv).toHexKey() + private val bob = Nip01Crypto.pubKeyCreate(bobPriv).toHexKey() + + private val everyone: (HexKey) -> Boolean = { it == alice || it == bob } + + private fun token(seed: Int) = ByteArray(PushSignedRecord.ENCRYPTED_TOKEN_BYTES) { ((it + seed) % 251).toByte() } + + private fun store(currentProfile: Boolean = true) = PushRecordStore(groupId, currentProfile) + + private fun entry( + priv: ByteArray, + ownerTs: Long, + leafIndex: Int = 0, + platform: PushPlatform = PushPlatform.APNS, + relayHint: String = "", + seed: Int = 0, + fingerprint: String = "sha256:000102030405060708090a0b", + ): PushTokenEntry { + val member = Nip01Crypto.pubKeyCreate(priv).toHexKey() + val encryptedToken = token(seed) + val tags = + PushOwnerProof.tags( + PushRecordKind.TOKEN, + groupId, + member, + leafIndex, + platform.wireName, + server, + fingerprint, + ownerTs, + relayHint, + ) + val content = PushBase64.encode(encryptedToken) + val sig = Nip01Crypto.sign(PushOwnerProof.eventId(member, tags, content), priv) + return PushTokenEntry(member, leafIndex, platform, fingerprint, server, relayHint, encryptedToken, ownerTs, sig) + } + + private fun removal( + priv: ByteArray, + ownerTs: Long, + leafIndex: Int = 0, + platform: PushPlatform = PushPlatform.APNS, + fingerprint: String = "sha256:000102030405060708090a0b", + ): PushRemovalEntry { + val member = Nip01Crypto.pubKeyCreate(priv).toHexKey() + val tags = + PushOwnerProof.tags( + PushRecordKind.REMOVAL, + groupId, + member, + leafIndex, + platform.wireName, + server, + fingerprint, + ownerTs, + "", + ) + val sig = Nip01Crypto.sign(PushOwnerProof.eventId(member, tags, ""), priv) + return PushRemovalEntry(member, leafIndex, platform, fingerprint, server, ownerTs, sig) + } + + @Test + fun aVerifiedEntryBecomesTheActiveRecord() { + val store = store() + val e = entry(alicePriv, now) + assertEquals(setOf(e.key), store.applyTokens(listOf(e), now, everyone)) + assertEquals(e, store.activeFor(e.key)) + } + + @Test + fun anUnverifiableEntryIsDroppedAndNothingElseHappens() { + val store = store() + val forged = entry(alicePriv, now).copy(ownerSig = ByteArray(64)) + assertTrue(store.applyTokens(listOf(forged), now, everyone).isEmpty()) + assertNull(store.activeFor(forged.key)) + assertNull(store.stampFor(forged.key)) + } + + @Test + fun anEntryFromANonMemberIsDroppedEvenThoughItVerifies() { + val store = store() + val e = entry(bobPriv, now) + assertTrue(store.applyTokens(listOf(e), now) { it == alice }.isEmpty()) + assertNull(store.activeFor(e.key)) + } + + @Test + fun aRelayedEntryIsAppliedRegardlessOfWhoCarriedIt() { + // The whole point of owner authentication: alice can bring bob's record + // to a member who has never been online at the same time as bob. + val store = store() + val bobs = entry(bobPriv, now) + assertEquals(setOf(bobs.key), store.applyTokens(listOf(bobs), now, everyone)) + assertEquals(bobs, store.activeFor(bobs.key)) + } + + @Test + fun theLatestStampWinsWhicheverOrderTheyArrive() { + val older = entry(alicePriv, now, seed = 1) + val newer = entry(alicePriv, now + 1000, seed = 2) + + val forwards = store().also { it.applyTokens(listOf(older, newer), now + 1000, everyone) } + val backwards = store().also { it.applyTokens(listOf(newer, older), now + 1000, everyone) } + + assertEquals(newer, forwards.activeFor(newer.key)) + assertEquals(newer, backwards.activeFor(newer.key)) + } + + @Test + fun anEqualStampTieBreaksOnTheDigestNotOnArrayPosition() { + // Two devices of one account can stamp the same millisecond. Without the + // digest tie-break, two readers would converge on different tokens and + // neither would be wrong. + val a = entry(alicePriv, now, seed = 7) + val b = entry(alicePriv, now, seed = 9) + val expected = if (a.stamp(groupId) > b.stamp(groupId)) a else b + + assertEquals(expected, store().also { it.applyTokens(listOf(a, b), now, everyone) }.activeFor(a.key)) + assertEquals(expected, store().also { it.applyTokens(listOf(b, a), now, everyone) }.activeFor(a.key)) + } + + @Test + fun reApplyingTheSameSignedRecordIsANoOp() { + val store = store() + val e = entry(alicePriv, now) + store.applyTokens(listOf(e), now, everyone) + assertTrue(store.applyTokens(listOf(e), now, everyone).isEmpty()) + assertEquals(e, store.activeFor(e.key)) + } + + @Test + fun aFarFutureStampIsRefused() { + // owner_ts is a latest-wins high-water mark; a far-future signed stamp + // would otherwise pin the record forever. + val store = store() + val e = entry(alicePriv, now + PushGossip.OWNER_TS_MAX_FUTURE_MILLIS + 1) + assertTrue(store.applyTokens(listOf(e), now, everyone).isEmpty()) + // Right at the bound it is still accepted. + val edge = entry(alicePriv, now + PushGossip.OWNER_TS_MAX_FUTURE_MILLIS) + assertEquals(setOf(edge.key), store.applyTokens(listOf(edge), now, everyone)) + } + + @Test + fun aRemovalDeletesAndLeavesATombstone() { + val store = store() + val e = entry(alicePriv, now) + store.applyTokens(listOf(e), now, everyone) + + val r = removal(alicePriv, now + 1000) + assertEquals(setOf(r.key), store.applyRemovals(listOf(r), now + 1000, everyone)) + assertNull(store.activeFor(r.key)) + assertTrue(store.isTombstoned(r.key)) + } + + @Test + fun aTombstoneSuppressesAStaleListThatArrivesLater() { + // The realistic race: a member assembled a kind 448 before the removal + // and delivers it after. Arrival order must not resurrect the token. + val store = store() + val stale = entry(alicePriv, now) + val r = removal(alicePriv, now + 1000) + store.applyTokens(listOf(stale), now, everyone) + store.applyRemovals(listOf(r), now + 1000, everyone) + + assertTrue(store.applyTokens(listOf(stale), now + 2000, everyone).isEmpty()) + assertNull(store.activeFor(stale.key)) + assertTrue(store.isTombstoned(stale.key)) + } + + @Test + fun aNewerRegistrationClearsTheTombstone() { + val store = store() + val r = removal(alicePriv, now + 1000) + store.applyRemovals(listOf(r), now + 1000, everyone) + + val fresh = entry(alicePriv, now + 2000, seed = 4) + assertEquals(setOf(fresh.key), store.applyTokens(listOf(fresh), now + 2000, everyone)) + assertFalse(store.isTombstoned(fresh.key)) + assertEquals(fresh, store.activeFor(fresh.key)) + } + + @Test + fun aStaleRemovalCannotRevokeANewerToken() { + val store = store() + val fresh = entry(alicePriv, now + 2000) + store.applyTokens(listOf(fresh), now + 2000, everyone) + + val stale = removal(alicePriv, now) + assertTrue(store.applyRemovals(listOf(stale), now + 2000, everyone).isEmpty()) + assertEquals(fresh, store.activeFor(fresh.key)) + } + + @Test + fun aRemovalDoesNotTouchASiblingLeaf() { + // leaf_index is in the record key precisely so one device cannot revoke + // another device's live token. + val store = store() + val leafZero = entry(alicePriv, now, leafIndex = 0) + val leafOne = entry(alicePriv, now, leafIndex = 1) + store.applyTokens(listOf(leafZero, leafOne), now, everyone) + + store.applyRemovals(listOf(removal(alicePriv, now + 1000, leafIndex = 0)), now + 1000, everyone) + assertNull(store.activeFor(leafZero.key)) + assertEquals(leafOne, store.activeFor(leafOne.key)) + } + + @Test + fun oneAccountKeepsSeparateRecordsPerPlatformAndServer() { + val store = store() + val apns = entry(alicePriv, now, platform = PushPlatform.APNS) + val fcm = entry(alicePriv, now, platform = PushPlatform.FCM) + store.applyTokens(listOf(apns, fcm), now, everyone) + assertEquals(2, store.active().size) + } + + @Test + fun aRemovedLeafLosesItsRecordItsStampAndItsTombstone() { + val store = store() + val leafZero = entry(alicePriv, now, leafIndex = 0) + val leafOne = entry(alicePriv, now, leafIndex = 1) + store.applyTokens(listOf(leafZero, leafOne), now, everyone) + store.applyRemovals(listOf(removal(alicePriv, now + 1000, leafIndex = 0)), now + 1000, everyone) + + store.forgetLeaf(alice, 0) + assertNull(store.stampFor(leafZero.key)) + assertFalse(store.isTombstoned(leafZero.key)) + // The sibling leaf is a different key and a still-current member. + assertEquals(leafOne, store.activeFor(leafOne.key)) + assertNotNull(store.stampFor(leafOne.key)) + } + + @Test + fun aRestoredStoreStillRefusesAStaleRelay() { + // A tombstone is durable or it is worthless: it is the only high-water + // mark stopping a relayed record from resurrecting a revoked token, and + // a relayed record's carrying epoch is unbounded. + val first = store() + val stale = entry(alicePriv, now) + first.applyTokens(listOf(stale), now, everyone) + first.applyRemovals(listOf(removal(alicePriv, now + 1000)), now + 1000, everyone) + + val restarted = store() + restarted.restore(first.active(), first.snapshotStamps(), first.snapshotTombstones()) + + assertTrue(restarted.applyTokens(listOf(stale), now + 5000, everyone).isEmpty()) + assertNull(restarted.activeFor(stale.key)) + } +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushSignedRecordTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushSignedRecordTest.kt new file mode 100644 index 0000000000..0fd82c427a --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/PushSignedRecordTest.kt @@ -0,0 +1,202 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.mip05PushNotifications + +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertNotEquals +import kotlin.test.assertNull + +/** + * `features/push-notifications.md`, "Canonical record bytes". + * + * The layout is asserted field by field against bytes assembled by hand, + * because every alternative encoding this codebase already owns would look + * correct locally and be wrong on the wire. The spec is explicit about it: + * "Signers and verifiers MUST NOT substitute QUIC varints, TLS vectors, or a + * serialization-library default." + */ +class PushSignedRecordTest { + private val groupId = "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f" + private val member = "f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9" + private val server = "2f8bde4d1a07209355b4a7250a5c5128e88b84bddc619ab7cba8d569b240efe4" + private val fingerprint = "sha256:000102030405060708090a0b" + private val ownerTs = 1700000000000L + private val token = ByteArray(PushSignedRecord.ENCRYPTED_TOKEN_BYTES) { (it % 251).toByte() } + + @Test + fun aRemovalRecordIsExactlyTheFieldsInOrder() { + val bytes = + PushSignedRecord.encode( + record = PushRecordKind.REMOVAL, + groupIdHex = groupId, + memberIdHex = member, + leafIndex = 3, + platform = PushPlatform.APNS, + serverPubKeyHex = server, + tokenFingerprint = fingerprint, + ownerTsMillis = ownerTs, + ) + + val expected = + "marmot-push-token-removal-v1".encodeToByteArray().toHexKey() + + // group_id_len = 32, big-endian u16, NOT a varint + "0020" + groupId + + member + + // leaf_index = 3 as u32 + "00000003" + + // platform apns + "01" + + server + + // token_fingerprint, the 12 bytes the sha256: prefix encodes + "000102030405060708090a0b" + + // owner_ts as u64 milliseconds + "0000018bcfe56800" + + // relay_hint_len = 0, and no encrypted_token at all + "0000" + + assertEquals(expected, bytes.toHexKey()) + } + + @Test + fun aTokenRecordAppendsTheHintAndTheWholeToken() { + val bytes = + PushSignedRecord.encode( + record = PushRecordKind.TOKEN, + groupIdHex = groupId, + memberIdHex = member, + leafIndex = 3, + platform = PushPlatform.FCM, + serverPubKeyHex = server, + tokenFingerprint = fingerprint, + ownerTsMillis = ownerTs, + relayHint = "wss://relay.example.com", + encryptedToken = token, + ) + + val hint = "wss://relay.example.com" + val expected = + "marmot-push-token-record-v1".encodeToByteArray().toHexKey() + + "0020" + groupId + + member + + "00000003" + + "02" + + server + + "000102030405060708090a0b" + + "0000018bcfe56800" + + // relay_hint_len = 23 + "0017" + hint.encodeToByteArray().toHexKey() + + token.toHexKey() + + assertEquals(expected, bytes.toHexKey()) + } + + @Test + fun aWhitespaceOnlyHintSignsAsAbsent() { + // The signer and the verifier have to agree, and JSON round-trips can + // pick up padding. Normalizing on both sides is the only way an entry + // that means "no hint" verifies wherever it lands. + val blank = + PushSignedRecord.encode( + PushRecordKind.TOKEN, + groupId, + member, + 0, + PushPlatform.APNS, + server, + fingerprint, + ownerTs, + " ", + token, + ) + val absent = + PushSignedRecord.encode( + PushRecordKind.TOKEN, + groupId, + member, + 0, + PushPlatform.APNS, + server, + fingerprint, + ownerTs, + "", + token, + ) + assertEquals(absent.toHexKey(), blank.toHexKey()) + } + + @Test + fun aRemovalAndATokenRecordNeverCollide() { + // Distinct domain tags, a zeroed hint length and the missing token all + // pull in the same direction: one signature can never be replayed as + // the other shape. + val removal = + PushSignedRecord.encode( + PushRecordKind.REMOVAL, + groupId, + member, + 0, + PushPlatform.APNS, + server, + fingerprint, + ownerTs, + ) + val record = + PushSignedRecord.encode( + PushRecordKind.TOKEN, + groupId, + member, + 0, + PushPlatform.APNS, + server, + fingerprint, + ownerTs, + "", + token, + ) + assertNotEquals(removal.toHexKey(), record.toHexKey()) + } + + @Test + fun theFingerprintIsTheFirstTwelveBytesOfThePlatformPrefixedHash() { + val deviceToken = "a-device-token".encodeToByteArray() + val fingerprint = PushSignedRecord.fingerprintOf(PushPlatform.APNS, deviceToken) + assertEquals(PushSignedRecord.FINGERPRINT_PREFIX, fingerprint.substring(0, 7)) + assertEquals(PushSignedRecord.FINGERPRINT_HEX_LENGTH, fingerprint.length - 7) + // The platform byte is in the preimage, so the same raw token on two + // platforms names two different records. + assertNotEquals(fingerprint, PushSignedRecord.fingerprintOf(PushPlatform.FCM, deviceToken)) + assertEquals( + fingerprint.substring(7).hexToByteArray().toHexKey(), + PushSignedRecord.fingerprintBytes(fingerprint)?.toHexKey(), + ) + } + + @Test + fun aMalformedFingerprintIsNotBytes() { + assertNull(PushSignedRecord.fingerprintBytes("000102030405060708090a0b")) + assertNull(PushSignedRecord.fingerprintBytes("sha256:000102030405060708090a")) + assertNull(PushSignedRecord.fingerprintBytes("sha256:000102030405060708090A0B")) + assertNull(PushSignedRecord.fingerprintBytes("sha256:00010203040506070809zzzz")) + } +} From cec8d946317dacc6b2abd7060d7f8c5b2337003d Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 20:33:09 +0000 Subject: [PATCH 42/79] fix(marmot): advertise 0x8006 and the receive role again MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Advertising a capability and running a service are different claims, and conflating them made an Amethyst user un-addable to any group a White Noise user starts. The reference client installs agent-text-stream-quic-v1 with `required_member_roles = receive` into the required component set of EVERY group it creates, then refuses an invitee whose KeyPackage omits either the component or the `0xF2D1` role — checked before negotiation, so negotiation cannot rescue it, and the invite path applies the same rule. Dropping the advertisement on the grounds that nothing in the deployed network publishes previews was right about the traffic and wrong about the capability: a capability says "this client can handle it", never "this group uses it". So the component and the receive role go back. `send` and `fanout` stay off and no watcher is started — we can be shown a preview, we do not originate one, and nothing dials a broker. Two tests had encoded the old premise, one of them asserting the refusal as if it were a feature. They now assert the rule that actually decides interop: our default leaf is admitted by the reference's own stream policy, and is refused by a group that requires `send`. The KDoc on `currentProfileLeafCapabilities` had described the role as present the whole time — it was the code that had drifted from it. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- marmotQuic/README.md | 32 +++++---- .../CurrentProfileGroupFactory.kt | 7 ++ .../quartz/marmot/mls/group/MlsGroup.kt | 27 +++----- .../CurrentProfileGroupFactoryTest.kt | 29 ++++---- .../mls/group/CurrentProfileWelcomeTest.kt | 68 ++++++++++++++----- 5 files changed, 103 insertions(+), 60 deletions(-) diff --git a/marmotQuic/README.md b/marmotQuic/README.md index f7958a27ee..b273918274 100644 --- a/marmotQuic/README.md +++ b/marmotQuic/README.md @@ -107,23 +107,29 @@ amy marmot stream watch GID --stream-id … amy marmot stream finish GID --stream-id … --transcript-hash … --chunk-count N "hello" ``` -## Not wired into the app +## Advertised, but not started The implementation is complete and tested, and nothing in the app starts it. -Nothing in the deployed network publishes agent text stream previews, so the -Android chat screen no longer builds a watcher and dials the brokers a kind:1200 -advertises, and our published KeyPackage no longer advertises component `0x8006` -or the `receive`/`send`/`fanout` role capabilities. A capability is a standing -promise to every peer that reads the KeyPackage; making one for a path nobody -exercises costs something and buys nothing. +Those are two separate things, and conflating them broke interop once. Our +KeyPackage **does** advertise component `0x8006` and the `0xF2D1` receive role, +because the reference client installs `agent-text-stream.quic.v1` with +`required_member_roles = receive` into the required set of **every group it +creates**, and refuses an invitee whose leaf omits either. Dropping the +advertisement on the grounds that "nothing publishes previews" made an Amethyst +user un-addable to any group a White Noise user started — the traffic claim was +right, the capability claim was not. A capability says "this client can handle +it", never "this group uses it". -What that leaves: the codecs, this module, the CLI (`amy marmot stream …`) and -the interop tests all still work and still run. Turning the feature back on is -re-adding `AppComponentIds.AGENT_TEXT_STREAM_QUIC_V1` to -`CurrentProfileGroupFactory.SUPPORTED_COMPONENTS`, the three roles to -`MlsGroup.currentProfileLeafCapabilities()`, and the watcher to -`MarmotGroupChatView`. +What we do NOT advertise is `send` (`0xF2D2`) and `fanout` (`0xF2D4`): we can be +shown a preview, we do not originate one. A group that requires either refuses +us, and `CurrentProfileWelcomeTest` asserts that refusal so widening the default +stays a deliberate decision. + +What is not started: the Android chat screen builds no watcher and dials no +broker a kind:1200 advertises. The codecs, this module, the CLI +(`amy marmot stream …`) and the interop tests all still work and still run. +Turning the live path on is re-adding the watcher to `MarmotGroupChatView`. ## Not done diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt index da7bc32fd5..a8661a747b 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactory.kt @@ -84,6 +84,13 @@ object CurrentProfileGroupFactory { AppComponentIds.ACCOUNT_IDENTITY_PROOF_V2, AppComponentIds.GROUP_ENCRYPTED_MEDIA_V2, AppComponentIds.GROUP_LIFECYCLE_V1, + // `0x8006` agent-text-stream-QUIC is a SUPPORT claim, not a + // running service. Nothing in the app dials a broker — see + // `marmotQuic/README.md` — but the reference client puts this + // component into the required set of every group it creates and + // refuses an invitee whose KeyPackage omits it. Dropping it here + // makes an Amethyst user un-addable to any group they start. + AppComponentIds.AGENT_TEXT_STREAM_QUIC_V1, ) /** A leaf keypair plus the account proof authorizing it. */ diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index 68e0ce27eb..c8a513f715 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -25,6 +25,7 @@ import com.vitorpamplona.quartz.marmot.appComponents.AppComponentIds import com.vitorpamplona.quartz.marmot.appComponents.MarmotGroupState import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamCrypto import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamQuicPolicyV1 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRoles import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter @@ -3432,8 +3433,14 @@ class MlsGroup private constructor( * * `0xF2D1` is the agent-text-stream RECEIVE role, for the same reason: * a group carrying component `0x8006` with `required_member_roles` - * naming `receive` refuses a leaf that does not advertise it. We stop - * at receive — see `CurrentProfileGroupFactory.SUPPORTED_COMPONENTS`. + * naming `receive` refuses a leaf that does not advertise it. The + * reference client puts exactly that policy into EVERY group it + * creates, so without this line an Amethyst KeyPackage cannot be + * invited into one at all. + * + * We stop at receive. `send` and `fanout` are not here because we do + * not originate previews from the app, and a capability is a standing + * promise rather than a hedge. */ fun currentProfileLeafCapabilities(): Capabilities = Capabilities( @@ -3441,21 +3448,7 @@ class MlsGroup private constructor( listOf( AppDataDictionary.EXTENSION_TYPE, MarmotGroupData.EXTENSION_ID_INT, - // The agent-stream roles (`0xF2D1` receive, `0xF2D2` - // send, `0xF2D4` fanout) are deliberately NOT here. - // - // The implementation exists and stays — see - // [AgentTextStreamRoles] and the `:marmotQuic` module — - // but nothing in the deployed network uses the QUIC - // preview path, and an advertised capability is a - // standing promise to every peer that reads our - // KeyPackage. Advertising a role no one exercises buys - // nothing and commits us to answering for it; the - // reference KeyPackage in our own conformance vector - // does not advertise it either. - // - // Re-adding them is a one-line change once the feature - // is actually in use. + AgentTextStreamRoles.RECEIVE_CAPABILITY, ), proposals = listOf(APP_DATA_UPDATE_PROPOSAL_TYPE, SELF_REMOVE_PROPOSAL_TYPE), ) diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt index 0a75465c1b..6c138d319b 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/CurrentProfileGroupFactoryTest.kt @@ -22,6 +22,7 @@ package com.vitorpamplona.quartz.marmot.appComponents import com.vitorpamplona.quartz.TestResourceLoader import com.vitorpamplona.quartz.marmot.appComponents.accountIdentityProof.AccountIdentityProofV2 +import com.vitorpamplona.quartz.marmot.appComponents.agentTextStream.AgentTextStreamRoles import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.mip01Groups.MlsCiphersuite import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader @@ -106,26 +107,26 @@ class CurrentProfileGroupFactoryTest { assertContentEquals(ByteArray(0), kpDictionary[AppComponentIds.LAST_RESORT_KEY_PACKAGE]) // Capabilities advertise the draft extension the current profile - // needs, plus the legacy 0xF2EE group-data extension and all three - // agent-text-stream roles — the same set MDK puts on every - // KeyPackage it publishes. + // needs, plus the legacy `0xF2EE` group-data extension and the + // `0xF2D1` agent-text-stream RECEIVE role. // - // `0xF2EE` is deliberate and is NOT drift from the MDK reference: - // a legacy group REQUIRES it, and a group refuses to add a leaf - // that does not advertise what it requires, so without it a - // current-profile KeyPackage would be un-addable to every legacy - // group that already exists. + // Both extras are there for the same reason, and it is not a + // hedge: a group refuses to add a leaf that does not advertise + // what it requires. A legacy group REQUIRES `0xF2EE`, so without + // it a current-profile KeyPackage would be un-addable to every + // legacy group that already exists. And the reference client puts + // `0x8006` with `required_member_roles = receive` into EVERY group + // it creates, so without `0xF2D1` an Amethyst user cannot be + // invited into one at all. // - // The agent-stream roles are deliberately absent. Advertising more - // than a group requires is harmless to that group but is not free: - // it is a standing claim to every peer that reads this KeyPackage, - // and nothing in the deployed network uses the QUIC preview path. - // The reference KeyPackage in `mls/marmot-current-profile.json` - // does not advertise `0x8006` either. + // `send` and `fanout` stay absent: we can be shown a preview, we + // do not originate one, and a capability is a standing promise to + // every peer that reads this KeyPackage. assertEquals( listOf( AppDataDictionary.EXTENSION_TYPE, MarmotGroupData.EXTENSION_ID_INT, + AgentTextStreamRoles.RECEIVE_CAPABILITY, ), kp.leafNode.capabilities.extensions, ) diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt index 65bb2887cd..5fb12b322d 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/group/CurrentProfileWelcomeTest.kt @@ -156,26 +156,61 @@ class CurrentProfileWelcomeTest { } /** - * Our published KeyPackage advertises NO agent-stream role, and is - * therefore refused by a group that requires one. + * Our published KeyPackage satisfies the policy the reference client puts + * on EVERY group it creates. * - * That refusal is the deliberate cost of not advertising, so it is asserted - * rather than discovered: the implementation is still here and still - * tested, but a capability is a standing promise to every peer that reads - * the KeyPackage, and we do not make one for a path nothing uses. If this - * test starts failing because the default advertises a role again, that is - * a decision to take on purpose, not a drift to absorb. + * `userToAgentDefault()` is not a hypothetical: `create_group` in the + * reference installs exactly it, requiring `receive` of every invitee, and + * refuses a KeyPackage that does not advertise `0xF2D1`. So this is the + * assertion that decides whether an Amethyst user can be invited into a + * group started by that client at all — it failed for real once, when the + * role was dropped from the default leaf. */ @Test - fun ourDefaultLeafAdvertisesNoStreamRoleAndIsRefusedByAGroupThatNeedsOne() = + fun ourDefaultLeafIsAdmittedByTheReferenceStreamPolicy() = runBlocking { val group = aGroup(AgentTextStreamQuicPolicyV1.userToAgentDefault()) val invitee = CurrentProfileGroupFactory.createKeyPackage(signer(0x77)) assertTrue( invitee.keyPackage.leafNode.capabilities.extensions - .none { it in AgentTextStreamRoles.ALL_CAPABILITIES }, - "the default leaf must carry no agent-stream role, got ${invitee.keyPackage.leafNode.capabilities.extensions}", + .contains(AgentTextStreamRoles.RECEIVE_CAPABILITY), + "the default leaf must advertise receive, got ${invitee.keyPackage.leafNode.capabilities.extensions}", + ) + + group.proposeAdd(invitee.keyPackage.toTlsBytes()) + val welcome = assertNotNull(group.commit().welcomeBytes) + val joined = MlsGroup.processWelcome(welcome, invitee) + assertEquals(nostrGroupId.toHexKey(), joined.currentNostrGroupId()) + } + + /** + * Where we stop: a group requiring `send` refuses our default leaf. + * + * Advertising `receive` and not `send` is a deliberate line — we can be + * shown a preview, we do not originate one — and the refusal is its cost. + * Asserted rather than discovered, so that widening the default is a + * decision someone takes on purpose. + */ + @Test + fun ourDefaultLeafIsRefusedByAGroupThatRequiresSend() = + runBlocking { + val group = + aGroup( + AgentTextStreamQuicPolicyV1( + requiredMemberRoles = AgentTextStreamRoles.RECEIVE or AgentTextStreamRoles.SEND, + allowedMemberRoles = AgentTextStreamRoles.MASK, + maxPlaintextFrameLen = 4096, + replayTtlSecs = 0, + paddingBucketBytes = 0, + ), + ) + val invitee = CurrentProfileGroupFactory.createKeyPackage(signer(0x78)) + + assertTrue( + invitee.keyPackage.leafNode.capabilities.extensions + .none { it == AgentTextStreamRoles.SEND_CAPABILITY }, + "the default leaf must not advertise send", ) group.proposeAdd(invitee.keyPackage.toTlsBytes()) @@ -205,11 +240,12 @@ class CurrentProfileWelcomeTest { * A current-profile KeyPackage whose leaf advertises exactly [roles] on top * of the default capability set. * - * The default set no longer carries any agent-stream role, so these tests - * build the leaf they need instead of relying on it. That is the right - * shape regardless: a test that asserted the gate through OUR default was - * really asserting the default, and stopped testing the gate the moment the - * default changed — which is exactly what happened. + * The default set carries `receive` and nothing beyond it, so a test that + * needs `send` or `fanout` builds the leaf it needs instead of relying on + * the default. That is the right shape regardless: a test that asserted the + * gate through OUR default was really asserting the default, and stopped + * testing the gate the moment the default changed — which is exactly what + * happened, twice, in both directions. */ private suspend fun keyPackageAdvertising( signer: NostrSignerInternal, From f414a8b8e04f00f4b5c056e9fb2b2c1202689fa1 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 22:12:29 +0000 Subject: [PATCH 43/79] fix(marmot): never render a system row a peer asserted MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Rendering kind:1210 rows, added earlier today, trusted the wrong thing. MLS authenticates that a member SENT an inner payload; it says nothing about whether the payload is true. The renderer read `actor` and `subject` straight out of that payload, so any member could send a well-formed 1210 saying "X removed Y" or "X renamed the group" and Amethyst would draw it as a system caption — attributed, styled as history, indistinguishable from a real one, in the part of a conversation a reader trusts most. `syncGroupSystemRows` already documented the rule ("one that arrives over the wire is an assertion by its sender, not a derived fact"); the render path simply did not honour it. The reference client draws the same line from the other side — its raw 1210 parser nulls attribution outright and marks every result unauthenticated, with a fuzz target asserting exactly that. The rule now lives at the one choke point every row passes through: `MarmotGroupList` shows a 1210 only when this client authored it. That is the right test because a derived row is diffed from MLS-authenticated state and is always authored by the account itself. It has to be there rather than at ingest, because rows arrive by two routes — live decryption and the restart re-read of the local log — and the log holds received payloads too, so an ingest-only guard would have let a forgery back in on the next launch. Dropping the sender's version costs nothing: every client that applied the same commits derives the same rows. The same feature had a second defect, which the first one was hiding. Derived rows were persisted but never surfaced, so they appeared only after a restart, and Android derived them solely for its own commits. In practice the only 1210s reaching the feed live were the untrusted ones. Rows now surface as they are derived, and every accepted commit derives them, not just ours. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../vitorpamplona/amethyst/model/Account.kt | 11 ++ .../loggedIn/DecryptAndIndexProcessor.kt | 10 +- .../amethyst/commons/marmot/MarmotManager.kt | 21 +++- .../model/marmotGroups/MarmotGroupList.kt | 27 ++++- .../MarmotGroupFeedVisibilityTest.kt | 108 ++++++++++++++++++ .../marmot/MarmotEditsAndSystemRowsTest.kt | 21 ++++ 6 files changed, 195 insertions(+), 3 deletions(-) create mode 100644 commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupFeedVisibilityTest.kt diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt index f46871d4c1..889917c7bb 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt @@ -3789,6 +3789,17 @@ class Account( // Restore Marmot MLS group state on startup if (marmotManager != null) { + // Derived kind:1210 rows go straight into the conversation. Only + // DERIVED rows arrive here — one received over the wire is an + // assertion by its sender and is dropped at ingest — so these are + // safe to render with attribution. + marmotManager.onSystemRowDerived = { groupId, row -> + cache.justConsume(row, null, true) + val note = cache.getOrCreateNote(row.id) + note.event = row + marmotGroupList.addMessage(groupId, note) + } + scope.launch(Dispatchers.IO) { marmotManager.restoreAll() diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt index cb5e51da5c..15bc34c0c7 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt @@ -726,7 +726,9 @@ class GroupEventHandler( } } - // Track the message in the Marmot group chatroom + // Track the message in the Marmot group chatroom. A + // peer-sent kind:1210 is dropped inside addMessage — see + // `MarmotGroupList.isDisplayableFeedMessage`. account.marmotGroupList.addMessage(result.groupId, innerNote) // Persist the decrypted plaintext so the message @@ -764,6 +766,12 @@ class GroupEventHandler( // Sync MIP-01 metadata after epoch advance (extensions may have changed) val chatroom = account.marmotGroupList.getOrCreateGroup(result.groupId) manager.syncMetadataTo(result.groupId, chatroom) + // The epoch just advanced, so whatever this commit changed + // is now canonical state — which is exactly what a kind:1210 + // row is derived from. Deriving here covers OTHER members' + // commits; our own are derived by `commitAndPublish`. Both + // reach the feed through `onSystemRowDerived`. + manager.syncGroupSystemRows(result.groupId) // Epoch just advanced — drain any kind:445 events that // previously failed as UndecryptableOuterLayer for this // group. See `pendingUndecryptable` for the scenario. diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 79ec80fd96..17de8a23ac 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -142,6 +142,20 @@ class MarmotManager( val inboundProcessor = MarmotInboundProcessor(groupManager, keyPackageRotationManager) val outboundProcessor = MarmotOutboundProcessor(groupManager) val welcomeSender = MarmotWelcomeSender(signer) + + /** + * Called for every kind:1210 row this client DERIVES, so a front end can + * surface it in the conversation as it happens. + * + * Only derived rows come through here, and that is the point. A 1210 that + * arrives over the wire is an assertion by its sender — see + * [syncGroupSystemRows] — so a renderer that took its `actor`/`subject` + * from the payload would let any member forge an attributed history row. + * These rows are diffed from MLS-authenticated state instead, which is why + * they are safe to attribute. + */ + var onSystemRowDerived: ((nostrGroupId: HexKey, row: Event) -> Unit)? = null + val publishGate = publishObligationStore?.let { MarmotPublishGate(groupManager, it) } ?: MarmotPublishGate(groupManager) @@ -1194,7 +1208,12 @@ class MarmotManager( // app event has a pubkey — this client, whose local derivation // it is. val appEvent = row.toAppEvent(actor ?: signer.pubKey, now) - persistDecryptedMessage(nostrGroupId, appEvent.toJson().dropLast(1) + ",\"sig\":\"\"}") + val json = appEvent.toJson().dropLast(1) + ",\"sig\":\"\"}" + persistDecryptedMessage(nostrGroupId, json) + // Surface it now as well as persisting it. Without this the + // row appears only after a restart re-reads the log, which is + // the wrong moment to learn that someone was removed. + Event.fromJsonOrNull(json)?.let { onSystemRowDerived?.invoke(nostrGroupId, it) } } store.recordGroupSnapshot(nostrGroupId, current.encode()) rows diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt index 939ac252d7..63be18ff2b 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupList.kt @@ -142,18 +142,43 @@ class MarmotGroupList( * 1210 system rows are NOT in this list. They are group-state captions * rather than messages, but they belong in the conversation in * chronological order, so the feed carries them and the renderer gives - * them their own style instead of a chat bubble. + * them their own style instead of a chat bubble — subject to the + * authorship rule below. */ private fun isDisplayableFeedMessage(msg: Note): Boolean { val kind = msg.event?.kind ?: return true + if (kind == MARMOT_INNER_KIND_SYSTEM_ROW) return isOwnDerivedSystemRow(msg) return kind !in NON_CHAT_INNER_KINDS } + /** + * A kind:1210 row is shown only when THIS client derived it. + * + * MLS authenticates that a member sent an inner payload; it says nothing + * about whether the payload is true. A received 1210 is therefore an + * assertion by its sender, with an `actor` and `subject` of the sender's + * choosing — so rendering one would let any member forge an attributed + * history row ("X removed Y") indistinguishable from a real one, in the + * part of the conversation a reader trusts most. + * + * Rows this client derives are diffed from MLS-authenticated group state + * (`MarmotManager.syncGroupSystemRows`) and are always authored by the + * account itself, so authorship is exactly the test. Nothing is lost by + * dropping the sender's version: every client that applied the same + * commits derives the same rows. + * + * The check has to live here rather than at ingest because rows reach the + * feed by two routes — live decryption and the restart re-read of the + * local log — and the log holds received payloads too. + */ + private fun isOwnDerivedSystemRow(msg: Note): Boolean = msg.event?.pubKey == ownerPubKey + companion object { private const val MARMOT_INNER_KIND_DELETION = 5 private const val MARMOT_INNER_KIND_REACTION = 7 private const val MARMOT_INNER_KIND_EDIT = 1009 private const val MARMOT_INNER_KIND_STREAM_START = 1200 + private const val MARMOT_INNER_KIND_SYSTEM_ROW = 1210 // Push token gossip. Routing data for a notification server, addressed // to the other members' clients rather than to the people in the room — diff --git a/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupFeedVisibilityTest.kt b/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupFeedVisibilityTest.kt new file mode 100644 index 0000000000..1caf3dacd4 --- /dev/null +++ b/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupFeedVisibilityTest.kt @@ -0,0 +1,108 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.model.marmotGroups + +import com.vitorpamplona.amethyst.commons.model.AddressableNote +import com.vitorpamplona.amethyst.commons.model.Note +import com.vitorpamplona.amethyst.commons.model.User +import com.vitorpamplona.amethyst.commons.model.UserContext +import com.vitorpamplona.quartz.nip01Core.core.Event +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFalse +import kotlin.test.assertTrue + +/** + * Which inner app events become rows in a Marmot group's conversation. + * + * The kind:1210 rule is a security boundary, not a display preference. MLS + * authenticates that a member SENT a payload; it says nothing about whether the + * payload is TRUE. The reference client draws the same line — its own fuzz + * target asserts that raw 1210 JSON "must not authenticate a payload actor" and + * that a parsed payload stays an unauthenticated projection. + */ +class MarmotGroupFeedVisibilityTest { + private val owner = "a".repeat(64) + private val peer = "b".repeat(64) + private val groupId = "c".repeat(64) + + private val context = UserContext { addr -> AddressableNote(addr) } + + private fun note( + kind: Int, + pubKey: String, + id: String = "${kind}0".padEnd(64, 'f'), + content: String = "", + ): Note { + val event = Event(id, pubKey, 1_800_000_000L, kind, emptyArray(), content, "") + return Note(event.id).also { it.loadEvent(event, User(pubKey, context), emptyList()) } + } + + private fun list() = MarmotGroupList(owner) + + private fun visibleCount( + list: MarmotGroupList, + note: Note, + ): Int { + list.addMessage(groupId, note) + return list.getOrCreateGroup(groupId).messages.size + } + + @Test + fun `a chat message is shown`() { + assertEquals(1, visibleCount(list(), note(9, peer, content = "hello"))) + } + + @Test + fun `a system row this client derived is shown`() { + // Derived rows are diffed from MLS-authenticated state and are always + // authored by the account itself, so authorship is what marks them. + assertEquals(1, visibleCount(list(), note(1210, owner))) + } + + @Test + fun `a system row sent by another member is refused`() { + // The forgery this blocks: any member can send a well-formed 1210 + // naming someone else as the actor of a removal or a rename, and it + // would render exactly like a real one in the part of the conversation + // a reader trusts most. + assertEquals(0, visibleCount(list(), note(1210, peer))) + } + + @Test + fun `the side-channel kinds never become rows`() { + // Reactions, deletions, edits, stream anchors and push token gossip all + // reach LocalCache — they drive other UI — but none is a message. + listOf(5, 7, 1009, 1200, 447, 448, 449).forEach { kind -> + assertEquals(0, visibleCount(list(), note(kind, peer)), "kind $kind must not render as a row") + } + } + + @Test + fun `authorship is the only thing that admits a system row`() { + // Not the group, not the arrival path, not the payload's own claims. + val list = list() + val forged = note(1210, peer, id = "1".repeat(64), content = """{"v":1,"system_type":"member_removed","data":{"actor":"$owner"}}""") + list.addMessage(groupId, forged) + assertTrue(list.getOrCreateGroup(groupId).messages.size == 0, "a payload cannot vouch for itself") + assertFalse(list.groupIdForNote(forged.idHex) == groupId) + } +} diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt index 7a85111cec..d40d9216a4 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt @@ -183,4 +183,25 @@ class MarmotEditsAndSystemRowsTest { val rows = restarted.loadStoredMessages(nostrGroupId).mapNotNull { Event.fromJsonOrNull(it) }.filter { it.kind == MarmotAppEvent.KIND_SYSTEM } assertEquals(1, rows.size) } + + @Test + fun `a derived row is surfaced as it happens, not only after a restart`() = + runBlocking { + // Rows used to reach the conversation only when a restart re-read + // the local log, which is the wrong moment to learn that someone + // was removed from the group. + val f = Fixture() + f.createGroup(name = "before") + f.manager.syncGroupSystemRows(nostrGroupId) + + val surfaced = mutableListOf() + f.manager.onSystemRowDerived = { _, row -> surfaced.add(row) } + f.manager.setGroupProfile(nostrGroupId, "after", "") + + assertEquals(1, surfaced.size, "a rename must surface exactly one row") + assertEquals(MarmotAppEvent.KIND_SYSTEM, surfaced.single().kind) + // Authored by this client: a derived row is OUR reading of + // authenticated state, and the feed admits a 1210 on exactly that. + assertEquals(f.signer.pubKey, surfaced.single().pubKey) + } } From d7b5884000fa266a9d08422ab750ffe6cf64e0ec Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 22:34:24 +0000 Subject: [PATCH 44/79] test(marmot): bound app-payload parsing and port two reference fuzz targets MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Three pieces of hardening taken from the reference client's `:fuzz` module. **Parse bounds.** An app payload reaches a decoder only after MLS has authenticated that a group MEMBER sent it — never that it is well-intentioned, and deep nesting or a huge collection costs a parser far more than it costs whoever sent it. `MarmotJson` now pre-scans for the same three limits the reference draws, at the same values: 64 KiB, depth 16, 64 elements per container. The scan is linear and runs before any JSON library sees the string, and it deliberately does NOT double as a validity filter — malformed input inside the limits still reaches the parser, so its error paths keep being exercised. `MarmotAppEvent.decode` is the choke point, so every inner kind is covered, with kind:1210 checked again at its own entry point because `fromAppEvent` can be reached without it. The byte limit counts UTF-8 rather than UTF-16 code units, which is the difference between a 64 KiB cap and a 256 KiB one for a payload of emoji. **Two ported targets.** Neither could be a like-for-like copy, because the reference fuzzes code we do not have in that shape — their metadata walkers are deliberately Android-free byte functions, ours is `ExifInterface` over a `Uri`. What ports is the set of oracles: - Identity references, against `Nip19Parser`: never throws, deterministic, idempotent on what it canonicalises, and never emits a key that is not 32 bytes of lowercase hex. The corpus is their grammar — `nostr:`, profile links, percent-encoded separators, truncated and over-long bech32 bodies, clipboard text with several references run together. - Container sniffing, against `ShareHelper`: never throws, deterministic, always names a declared kind, a mismatched walker does not claim the container, and — the one that matters most — only the header decides. A sniffer that read past its header would let bytes deep inside a file relabel it, which is what content-type confusion needs. Seeded rather than Jazzer-driven, so no fuzzing engine joins the build and a failure reproduces from the printed seed. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../ShareHelperContainerSniffingTest.kt | 168 +++++++++++++++ .../foundation/appEvents/MarmotAppEvent.kt | 8 + .../marmot/foundation/appEvents/MarmotJson.kt | 93 ++++++++ .../foundation/appEvents/MarmotSystemEvent.kt | 4 + .../appEvents/MarmotJsonBoundsTest.kt | 129 ++++++++++++ .../Nip19ParserAdversarialInputTest.kt | 199 ++++++++++++++++++ 6 files changed, 601 insertions(+) create mode 100644 amethyst/src/test/java/com/vitorpamplona/amethyst/ui/components/ShareHelperContainerSniffingTest.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotJsonBoundsTest.kt create mode 100644 quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip19Bech32/Nip19ParserAdversarialInputTest.kt diff --git a/amethyst/src/test/java/com/vitorpamplona/amethyst/ui/components/ShareHelperContainerSniffingTest.kt b/amethyst/src/test/java/com/vitorpamplona/amethyst/ui/components/ShareHelperContainerSniffingTest.kt new file mode 100644 index 0000000000..bcb68cc0ff --- /dev/null +++ b/amethyst/src/test/java/com/vitorpamplona/amethyst/ui/components/ShareHelperContainerSniffingTest.kt @@ -0,0 +1,168 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.ui.components + +import org.junit.Assert.assertEquals +import org.junit.Assert.assertTrue +import org.junit.Test +import java.io.File +import java.nio.file.Files +import kotlin.random.Random + +/** + * Container sniffing under adversarial bytes. + * + * Ported from the reference client's `ImageContainerBytesFuzzTest`. Their + * walkers strip metadata from a `ByteArray`; ours identifies a container from a + * file's first bytes, so the oracles carry over even though the code does not: + * arbitrary input never throws, the answer is deterministic and always a + * declared kind, a mismatched walker does not claim the container, and only the + * header can decide — trailing bytes must be irrelevant. + * + * That last one is the load-bearing invariant here. A sniffer that read past + * its header would let attacker-chosen bytes deep inside a file change how the + * file is labelled, which is exactly what content-type confusion needs. + */ +class ShareHelperContainerSniffingTest { + private val imageKinds = setOf("jpg", "png", "gif", "webp") + private val videoKinds = setOf("mp4", "mov", "webm", "avi") + + private lateinit var dir: File + + private fun file(bytes: ByteArray): File { + if (!::dir.isInitialized) dir = Files.createTempDirectory("sniffing").toFile() + val f = File.createTempFile("probe", ".bin", dir) + f.writeBytes(bytes) + return f + } + + private fun headers(): List> = + listOf( + "jpg" to byteArrayOf(0xFF.toByte(), 0xD8.toByte(), 0x00, 0x01), + "png" to byteArrayOf(0x89.toByte(), 0x50, 0x4E, 0x47), + "gif" to "GIF89a".encodeToByteArray(), + "webp" to ("RIFF".encodeToByteArray() + ByteArray(4) + "WEBP".encodeToByteArray()), + "webm" to byteArrayOf(0x1A, 0x45, 0xDF.toByte(), 0xA3.toByte()), + "avi" to ("RIFF".encodeToByteArray() + ByteArray(4) + "AVI ".encodeToByteArray()), + "mp4" to (ByteArray(4) + "ftyp".encodeToByteArray() + "isom".encodeToByteArray()), + "mov" to (ByteArray(4) + "ftyp".encodeToByteArray() + "qt ".encodeToByteArray()), + ) + + /** Random bytes, truncations, and real headers with random tails. */ + private fun corpus(seed: Int): List { + val rnd = Random(seed) + return buildList { + repeat(200) { add(ByteArray(rnd.nextInt(0, 64)) { rnd.nextInt(256).toByte() }) } + headers().forEach { (_, header) -> + add(header) + repeat(8) { add(header + ByteArray(rnd.nextInt(0, 128)) { rnd.nextInt(256).toByte() }) } + // Truncated to every prefix length: the sniffer must survive a + // header that stops in the middle of a magic number. + for (cut in 0 until header.size) add(header.copyOfRange(0, cut)) + } + add(ByteArray(0)) + } + } + + @Test + fun sniffingNeverThrowsAndAlwaysNamesADeclaredKind() { + val seed = 20260914 + corpus(seed).forEach { bytes -> + val f = file(bytes) + val image = + try { + ShareHelper.getImageExtension(f) + } catch (e: Throwable) { + throw AssertionError("image sniffing threw on " + bytes.size + " bytes (seed " + seed + ")", e) + } + val video = + try { + ShareHelper.getVideoExtension(f) + } catch (e: Throwable) { + throw AssertionError("video sniffing threw on " + bytes.size + " bytes (seed " + seed + ")", e) + } + assertTrue("unexpected image kind " + image, image in imageKinds) + assertTrue("unexpected video kind " + video, video in videoKinds) + } + } + + @Test + fun sniffingIsDeterministic() { + corpus(20260915).forEach { bytes -> + val f = file(bytes) + assertEquals(ShareHelper.getImageExtension(f), ShareHelper.getImageExtension(f)) + assertEquals(ShareHelper.getVideoExtension(f), ShareHelper.getVideoExtension(f)) + } + } + + @Test + fun onlyTheHeaderDecides() { + // Appending arbitrary bytes must not change the verdict. A sniffer that + // read further would let bytes deep inside a file relabel it. + val rnd = Random(20260916) + headers().forEach { (_, header) -> + val bare = file(header) + val image = ShareHelper.getImageExtension(bare) + val video = ShareHelper.getVideoExtension(bare) + repeat(16) { + val padded = file(header + ByteArray(rnd.nextInt(1, 512)) { rnd.nextInt(256).toByte() }) + assertEquals("a trailing byte changed the image verdict", image, ShareHelper.getImageExtension(padded)) + assertEquals("a trailing byte changed the video verdict", video, ShareHelper.getVideoExtension(padded)) + } + } + } + + @Test + fun everyRealHeaderIsIdentifiedByItsOwnWalker() { + headers().forEach { (kind, header) -> + val f = file(header + ByteArray(32)) + val sniffed = if (kind in imageKinds) ShareHelper.getImageExtension(f) else ShareHelper.getVideoExtension(f) + assertEquals("header for " + kind + " was not identified", kind, sniffed) + } + } + + @Test + fun aMismatchedWalkerDoesNotClaimTheContainer() { + // Their "a mismatched walker must reject the container", in the shape + // our API allows: asking the video sniffer about a JPEG must fall back + // to the video default rather than reporting an image kind. + headers().forEach { (kind, header) -> + val f = file(header + ByteArray(32)) + if (kind in imageKinds) { + assertTrue("an image was reported as a video kind", ShareHelper.getVideoExtension(f) in videoKinds) + } else { + assertTrue("a video was reported as an image kind", ShareHelper.getImageExtension(f) in imageKinds) + } + } + } + + @Test + fun aTruncatedHeaderFallsBackRatherThanGuessing() { + // Under four readable bytes there is nothing to decide on, and reading + // past the end is how a sniffer turns a short file into a crash. + listOf(ByteArray(0), byteArrayOf(0xFF.toByte()), byteArrayOf(0xFF.toByte(), 0xD8.toByte()), byteArrayOf(0x89.toByte(), 0x50, 0x4E)) + .forEach { bytes -> + val f = file(bytes) + assertEquals("jpg", ShareHelper.getImageExtension(f)) + assertEquals("mp4", ShareHelper.getVideoExtension(f)) + } + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotAppEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotAppEvent.kt index 5e63e03345..e63c2f7d2f 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotAppEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotAppEvent.kt @@ -139,6 +139,14 @@ class MarmotAppEvent( * @throws IllegalArgumentException naming the reason. */ fun decode(json: String): MarmotAppEvent { + // Shape before content. MLS authenticates that a group MEMBER sent + // these bytes, never that they are well-intentioned, and a deeply + // nested or enormous payload costs a parser far more than it costs + // the sender. The pre-scan is linear and runs before any JSON + // library sees the string. + require(MarmotJson.withinResourceBounds(json)) { + "Marmot app payload exceeds the parse bounds" + } val obj = MarmotJson.parseObject(json) require(!obj.containsKey("sig")) { diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotJson.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotJson.kt index 022fc4d381..6166c27554 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotJson.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotJson.kt @@ -76,6 +76,99 @@ class MarmotJsonObject( object MarmotJson { private val parser = Json { ignoreUnknownKeys = false } + /** + * Resource bounds for an app-payload `content` string. + * + * A payload reaches a decoder only after MLS has authenticated that a group + * MEMBER sent it — never that it is well-intentioned. Deep nesting and huge + * collections cost a parser far more than they cost the sender, so the + * shape is checked with a linear pre-scan BEFORE any JSON library sees the + * bytes. The reference client draws the same three limits at the same + * values, which is why they are these numbers and not rounder ones. + */ + const val MAX_INPUT_BYTES = 64 * 1024 + const val MAX_JSON_DEPTH = 16 + const val MAX_COLLECTION_ELEMENTS = 64 + + /** + * True when [json] is small enough and shallow enough to hand to a parser. + * + * Deliberately NOT a validity check: malformed input that stays inside the + * limits still goes through to the real parser, so its error paths keep + * being exercised rather than being masked by a pre-filter. + */ + fun withinResourceBounds(json: String): Boolean = !exceedsByteLimit(json) && BoundsScanner().scan(json) + + private fun exceedsByteLimit(json: String): Boolean { + var bytes = 0 + var i = 0 + while (i < json.length) { + val ch = json[i] + bytes += + when { + ch.code <= 0x7F -> 1 + ch.code <= 0x7FF -> 2 + ch.isHighSurrogate() && i + 1 < json.length && json[i + 1].isLowSurrogate() -> { + i++ + 4 + } + + else -> 3 + } + if (bytes > MAX_INPUT_BYTES) return true + i++ + } + return false + } + + /** + * One pass over the text, counting container depth and the members at each + * depth. It only has to be right about structure — string boundaries and + * escapes — so it reads nothing else. + */ + private class BoundsScanner { + private val membersByDepth = IntArray(MAX_JSON_DEPTH + 2) + private var depth = 0 + private var quote: Char? = null + private var escaped = false + + fun scan(json: String): Boolean { + for (ch in json) { + if (!consume(ch)) return false + } + return true + } + + private fun consume(ch: Char): Boolean { + val open = quote + if (open != null) { + when { + escaped -> escaped = false + ch == '\\' -> escaped = true + ch == open -> quote = null + } + return true + } + when (ch) { + '"' -> quote = ch + '{', '[' -> { + depth++ + if (depth > MAX_JSON_DEPTH) return false + membersByDepth[depth] = 0 + } + + '}', ']' -> if (depth > 0) depth-- + ',' -> { + if (depth > 0) { + membersByDepth[depth]++ + if (membersByDepth[depth] >= MAX_COLLECTION_ELEMENTS) return false + } + } + } + return true + } + } + fun parseObject(json: String): MarmotJsonObject { val element = parser.parseToJsonElement(json) val obj = element as? JsonObject ?: throw IllegalArgumentException("payload is not a JSON object") diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemEvent.kt index 3f0ca9cfee..1eefadacf9 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemEvent.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemEvent.kt @@ -133,6 +133,10 @@ class MarmotSystemEvent( */ fun fromAppEvent(event: MarmotAppEvent): MarmotSystemEvent? { if (event.kind != MarmotAppEvent.KIND_SYSTEM) return null + // Bounded before parsed: a row's content is peer-authored, and + // deep nesting or a huge collection costs a parser far more than + // it costs whoever sent it. + if (!MarmotJson.withinResourceBounds(event.content)) return null return try { val obj = MarmotJson.parseObject(event.content) if (obj.int("v") != SCHEMA_VERSION) return null diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotJsonBoundsTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotJsonBoundsTest.kt new file mode 100644 index 0000000000..20a60f1edb --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotJsonBoundsTest.kt @@ -0,0 +1,129 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.marmot.foundation.appEvents + +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFalse +import kotlin.test.assertNotNull +import kotlin.test.assertNull +import kotlin.test.assertTrue + +/** + * Resource bounds on an app payload's `content`, ported from the reference + * client's `GroupSystemEventFuzzTest` contract. + * + * The threat is not a malformed payload — those are dropped either way — but a + * well-formed one that is expensive. MLS authenticates that a group MEMBER sent + * these bytes and nothing more, and deep nesting or a huge collection costs a + * parser far more than it costs whoever sent it. + * + * The limits are checked with a linear pre-scan BEFORE any JSON library sees + * the string, and the pre-scan deliberately does not double as a validity + * check: malformed input that stays inside the limits still reaches the real + * parser, so its error paths keep being exercised. + */ +class MarmotJsonBoundsTest { + private fun nested(containers: Int) = + buildString { + append("{\"system_type\":\"nested\",\"data\":") + repeat(containers) { append('[') } + append('0') + repeat(containers) { append(']') } + append('}') + } + + private fun wide(members: Int) = + (0 until members).joinToString( + prefix = "{\"system_type\":\"wide\",\"data\":{", + postfix = "}}", + ) { "\"field$it\":$it" } + + @Test + fun aPayloadInsideEveryLimitIsAccepted() { + assertTrue(MarmotJson.withinResourceBounds("""{"v":1,"system_type":"member_added"}""")) + assertTrue(MarmotJson.withinResourceBounds(nested(MarmotJson.MAX_JSON_DEPTH - 2))) + assertTrue(MarmotJson.withinResourceBounds(wide(MarmotJson.MAX_COLLECTION_ELEMENTS - 2))) + } + + @Test + fun nestingBeyondTheDepthLimitIsRefused() { + assertFalse(MarmotJson.withinResourceBounds(nested(MarmotJson.MAX_JSON_DEPTH + 1))) + } + + @Test + fun aCollectionBeyondTheElementLimitIsRefused() { + assertFalse(MarmotJson.withinResourceBounds(wide(MarmotJson.MAX_COLLECTION_ELEMENTS + 2))) + } + + @Test + fun inputBeyondTheByteLimitIsRefused() { + val big = "{\"text\":\"" + "a".repeat(MarmotJson.MAX_INPUT_BYTES) + "\"}" + assertFalse(MarmotJson.withinResourceBounds(big)) + } + + @Test + fun theByteLimitCountsUtf8NotUtf16() { + // A four-byte emoji is two Kotlin chars. Counting chars would let a + // payload four times over the limit through. + val emoji = "😀" + val overshoot = "{\"text\":\"" + emoji.repeat(MarmotJson.MAX_INPUT_BYTES / 4) + "\"}" + assertFalse(MarmotJson.withinResourceBounds(overshoot)) + } + + @Test + fun bracesInsideStringsDoNotCountAsNesting() { + // The scanner has to know where strings begin and end, or a caption + // that merely mentions a bracket would be refused as too deep. + val text = "[".repeat(MarmotJson.MAX_JSON_DEPTH * 4) + assertTrue(MarmotJson.withinResourceBounds("""{"system_type":"x","text":"$text"}""")) + } + + @Test + fun anEscapedQuoteDoesNotEndTheString() { + assertTrue(MarmotJson.withinResourceBounds("""{"system_type":"x","text":"she said \"hi\" and [[["}""")) + } + + @Test + fun aBoundedButMalformedPayloadStillReachesTheParser() { + // The pre-scan is not a validity filter. If it rejected malformed input + // itself, the parser's error paths would stop being exercised. + assertTrue(MarmotJson.withinResourceBounds("{not json at all")) + } + + @Test + fun anOversizedSystemRowIsDroppedRatherThanParsed() { + val payload = nested(MarmotJson.MAX_JSON_DEPTH + 4) + val event = MarmotAppEvent("id", "a".repeat(64), 1L, MarmotAppEvent.KIND_SYSTEM, emptyArray(), payload) + assertNull(MarmotSystemEvent.fromAppEvent(event)) + } + + @Test + fun anOrdinarySystemRowStillDecodes() { + // The bound must not cost the real thing: a row this client derived has + // to survive its own round trip. + val row = MarmotSystemEvent(MarmotSystemType.GROUP_RENAMED, actor = "b".repeat(64), name = "after") + val appEvent = row.toAppEvent("b".repeat(64), 1_800_000_000L) + val decoded = assertNotNull(MarmotSystemEvent.fromAppEvent(appEvent)) + assertEquals(MarmotSystemType.GROUP_RENAMED, decoded.systemType) + assertEquals("after", decoded.name) + } +} diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip19Bech32/Nip19ParserAdversarialInputTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip19Bech32/Nip19ParserAdversarialInputTest.kt new file mode 100644 index 0000000000..080b08398f --- /dev/null +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip19Bech32/Nip19ParserAdversarialInputTest.kt @@ -0,0 +1,199 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.quartz.nip19Bech32 + +import com.vitorpamplona.quartz.nip19Bech32.entities.IPubKeyEntity +import kotlin.random.Random +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertTrue + +/** + * Identity-reference parsing under adversarial input. + * + * Ported from the reference client's `IdentityReferenceFuzzTest`: same grammar + * (`nostr:`, profile links, percent-encoded separators, truncated bech32, + * multi-token clipboard text), same invariants — the parser never throws, is + * deterministic, is idempotent on whatever it canonicalises, and never emits a + * key that is not a 32-byte lowercase hex string. + * + * Seeded rather than Jazzer-driven, so it needs no fuzzing engine on the build + * and a failure reproduces from the printed seed. That is the whole difference: + * the oracles below are theirs. + */ +class Nip19ParserAdversarialInputTest { + private val bech32Body = "qpzry9x8gf2tvdw0s3jn54khce6mua7l" + private val schemes = listOf("nostr", "http", "https", "marmot", "whitenoise", "web+nostr", "") + private val hosts = listOf("njump.me", "primal.net", "example.com", "profile", "") + private val separators = listOf("://", ":", "%3A%2F%2F", "%2F", "") + private val pathPrefixes = listOf("profile/", "profile%2F", "p/", "") + private val joiners = listOf(",", " ", "\n", "\t", " ", ";", "") + + private fun body( + rnd: Random, + length: Int, + ) = buildString { repeat(length) { append(bech32Body[rnd.nextInt(bech32Body.length)]) } } + + /** + * A shaped-but-corrupt npub: the right alphabet and length, a checksum that + * does not hold. This is what a truncated or mistyped paste actually looks + * like, and it is most of the corpus on purpose. + */ + private fun corruptNpub(rnd: Random) = "npub1" + body(rnd, 58) + + /** A real npub, checksum and all, for the cases that must SUCCEED. */ + private fun validNpub(rnd: Random) = ByteArray(32) { rnd.nextInt(256).toByte() }.toNpub() + + private fun reference(rnd: Random): String { + val key = + when (rnd.nextInt(6)) { + 0 -> validNpub(rnd) + // Truncated and over-long bodies: the 58-char rule is what + // stops a half-pasted npub from decoding to a short key. + 1 -> "npub1" + body(rnd, rnd.nextInt(1, 58)) + 2 -> "npub1" + body(rnd, rnd.nextInt(59, 90)) + 3 -> "nprofile1" + body(rnd, rnd.nextInt(1, 120)) + 4 -> corruptNpub(rnd).uppercase() + else -> body(rnd, rnd.nextInt(0, 70)) + } + val scheme = schemes[rnd.nextInt(schemes.size)] + return when (scheme) { + "" -> key + "nostr" -> "nostr:" + key + "http", "https" -> + scheme + "://" + hosts[rnd.nextInt(hosts.size)] + "/" + + pathPrefixes[rnd.nextInt(pathPrefixes.size)] + key + + else -> + scheme + separators[rnd.nextInt(separators.size)] + + pathPrefixes[rnd.nextInt(pathPrefixes.size)] + key + } + } + + private fun corpus(seed: Int): List { + val rnd = Random(seed) + return buildList { + repeat(400) { add(reference(rnd)) } + // Clipboard-shaped input: several references run together. + repeat(100) { + val count = rnd.nextInt(2, 6) + add((0 until count).joinToString(joiners[rnd.nextInt(joiners.size)]) { reference(rnd) }) + } + // Degenerate shapes the grammar above never produces. + addAll(listOf("", " ", "\n", "nostr:", "npub1", "@", "nostr:@", "://", "%", "npub1 npub1")) + } + } + + @Test + fun parsingNeverThrowsAndIsDeterministic() { + val seed = 20260909 + corpus(seed).forEach { input -> + val first = + try { + Nip19Parser.uriToRoute(input) + } catch (e: Throwable) { + throw AssertionError("uriToRoute threw on " + input.take(120) + " (seed " + seed + ")", e) + } + val second = Nip19Parser.uriToRoute(input) + assertEquals(first?.entity, second?.entity, "parsing must be deterministic for " + input.take(120)) + assertEquals(first?.nip19raw, second?.nip19raw) + } + } + + @Test + fun cleaningNeverThrowsAndIsIdempotent() { + val seed = 20260910 + corpus(seed).forEach { input -> + val cleaned = + try { + Nip19Parser.tryParseAndClean(input) + } catch (e: Throwable) { + throw AssertionError("tryParseAndClean threw on " + input.take(120) + " (seed " + seed + ")", e) + } + if (cleaned != null) { + // Re-cleaning its own output must be a fixed point, or two + // clients that clean a different number of times disagree about + // the same paste. + assertEquals( + cleaned, + Nip19Parser.tryParseAndClean(cleaned), + "cleaning is not idempotent for " + input.take(120), + ) + } + } + } + + @Test + fun aDecodedKeyIsAlwaysThirtyTwoBytesOfLowercaseHex() { + val seed = 20260911 + corpus(seed).forEach { input -> + val entity = Nip19Parser.uriToRoute(input)?.entity + if (entity is IPubKeyEntity) { + val hex = entity.hex + assertEquals( + 64, + hex.length, + "a pubkey entity must decode to 32 bytes, got " + hex.length + " from " + input.take(120), + ) + assertTrue( + hex.all { it in '0'..'9' || it in 'a'..'f' }, + "a decoded key must be lowercase hex, got " + hex, + ) + } + } + } + + @Test + fun aParsedReferenceReParsesToTheSameEntity() { + // The canonical `nip19raw` is what the app stores and re-reads. If it + // did not round-trip, a reference would decay every time it was copied + // through the UI. + val seed = 20260912 + corpus(seed).forEach { input -> + val parsed = Nip19Parser.uriToRoute(input) ?: return@forEach + val reparsed = Nip19Parser.uriToRoute(parsed.nip19raw) + assertEquals(parsed.entity, reparsed?.entity, "re-parsing " + parsed.nip19raw + " changed the entity") + } + } + + @Test + fun aWellFormedNpubIsFoundInsideEveryCarrierShape() { + // The negative cases above are only half the contract: the parser also + // has to keep finding a real reference through a link, a scheme it does + // not know, and percent-encoding. + val rnd = Random(20260913) + val key = validNpub(rnd) + val carriers = + listOf( + key, + "nostr:" + key, + "@" + key, + "https://njump.me/" + key, + "https://example.com/profile/" + key, + "web+nostr://" + key, + "text before nostr:" + key + " and after", + ) + carriers.forEach { carrier -> + val entity = Nip19Parser.uriToRoute(carrier)?.entity + assertTrue(entity is IPubKeyEntity, "no pubkey found in " + carrier) + } + } +} From b3b4fdaf43ead2b83338ec62f3ddb0621d071dc6 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 23:15:18 +0000 Subject: [PATCH 45/79] feat(marmot): honour disappearing messages MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit `marmot.group.message-retention.v1` decoded into `MarmotGroupState.retention` and then nothing read it. In a group with disappearing messages enabled, every member's copy vanished on schedule except Amethyst's, which kept the plaintext indefinitely — not a wire incompatibility, the group still worked, but a privacy divergence from what that group was told it had. Expiry is pinned per message when it enters the log, never recomputed. That is the component's rule and it is the easy one to get wrong: a message keeps the retention of its OWN source epoch, so changing the setting later must not shorten, extend, or restore the expiry of a message that already exists. Recomputing from the current setting would let one member retroactively shorten everyone's history, or resurrect what should already be gone. First write wins for the same reason — the ratchet rewinds on restart and relays replay recent kind:445s, so the same message really is persisted twice, and a second write that re-timed it would let a message postpone its own expiry every time it was replayed. The retention itself is read from the `0x8005` component with a fallback to a legacy group's `0xF2EE` field, because the two profiles express the same setting in different places and reading only one would silently treat half the groups as having no expiry. Expiring deletes rather than hides. This store is the only copy — the ratchet moved past the ciphertext it came from long ago — so a message that is merely filtered out of a read is still on disk, and a disappearing message that is gone from disk but still on screen has not disappeared either. Both stores rewrite their logs, reads prune first so a restart cannot show something that fell due while the app was closed, and the front end is told what went so it can drop those rows from a conversation already open. Traffic is the clock: a group being read is a group whose expired messages should already be gone. There is no timer, so a group nobody opens keeps its messages until someone does — worth knowing, and better than a wakeup that exists only to delete. Expiry stays advisory by design, as the component says: the duration is authenticated but the base is the sender's own `created_at`, so it inherits the trust already placed in an MLS-authenticated sender and is not a guarantee against a hostile one. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../vitorpamplona/amethyst/model/Account.kt | 9 + .../model/marmot/AndroidMarmotMessageStore.kt | 79 +++++- .../loggedIn/DecryptAndIndexProcessor.kt | 5 + .../amethyst/cli/stores/FileStores.kt | 52 ++++ .../amethyst/commons/marmot/MarmotIngest.kt | 3 + .../amethyst/commons/marmot/MarmotManager.kt | 88 ++++++- .../commons/marmot/MarmotRetentionTest.kt | 238 ++++++++++++++++++ .../commons/marmot/MarmotTestStores.kt | 24 ++ .../marmot/mls/group/MarmotMessageStore.kt | 39 +++ 9 files changed, 533 insertions(+), 4 deletions(-) create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotRetentionTest.kt diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt index 889917c7bb..e72e2907a3 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt @@ -3800,6 +3800,15 @@ class Account( marmotGroupList.addMessage(groupId, note) } + // A disappearing message that is gone from disk but still on screen + // has not disappeared. Drop it from the conversation as it expires, + // rather than waiting for the next read to omit it. + marmotManager.onMessagesExpired = { groupId, expiredIds -> + expiredIds.forEach { id -> + cache.getNoteIfExists(id)?.let { marmotGroupList.removeMessage(groupId, it) } + } + } + scope.launch(Dispatchers.IO) { marmotManager.restoreAll() diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt index 437fc0cbc6..ab59b622d8 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt @@ -22,6 +22,7 @@ package com.vitorpamplona.amethyst.model.marmot import com.vitorpamplona.amethyst.model.preferences.KeyStoreEncryption import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore +import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.utils.Log import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.sync.Mutex @@ -111,7 +112,7 @@ class AndroidMarmotMessageStore( override suspend fun delete(nostrGroupId: String) { withContext(Dispatchers.IO) { writeMutex.withLock { - for (file in listOf(messagesFile(nostrGroupId), epochsFile(nostrGroupId), snapshotFile(nostrGroupId))) { + for (file in listOf(messagesFile(nostrGroupId), epochsFile(nostrGroupId), snapshotFile(nostrGroupId), expiriesFile(nostrGroupId))) { if (file.exists() && !file.delete()) { Log.w(TAG) { "delete($nostrGroupId): failed to remove ${file.absolutePath}" } } @@ -166,6 +167,82 @@ class AndroidMarmotMessageStore( } } + private fun expiriesFile(nostrGroupId: String): File = File(groupDir(nostrGroupId), "expiries") + + /** + * When a message stops being displayable, for a group that expires them. + * + * Encrypted like the messages: an expiry names an inner event id and says + * roughly when it was sent, which is conversation metadata. + * + * First write wins. The expiry is pinned to the retention of the message's + * own source epoch, so re-persisting the same message after a restart — + * which happens, because the ratchet rewinds and relays replay — must not + * re-time it under whatever the setting has since become. + */ + override suspend fun recordExpiry( + nostrGroupId: String, + innerEventId: String, + expiresAtSecs: Long, + ) = withContext(Dispatchers.IO) { + writeMutex.withLock { + try { + val existing = readAllFrom(expiriesFile(nostrGroupId)).toMutableList() + if (existing.any { it.substringBefore(' ') == innerEventId }) return@withLock + existing.add("$innerEventId $expiresAtSecs") + writeAllTo(expiriesFile(nostrGroupId), existing) + } catch (e: Exception) { + Log.e(TAG, "recordExpiry($nostrGroupId) FAILED: ${e.message}", e) + } + } + } + + override suspend fun loadExpiries(nostrGroupId: String): Map = + withContext(Dispatchers.IO) { + try { + readAllFrom(expiriesFile(nostrGroupId)) + .mapNotNull { line -> + val parts = line.trim().split(' ') + if (parts.size != 2) return@mapNotNull null + val at = parts[1].toLongOrNull() ?: return@mapNotNull null + parts[0] to at + }.toMap() + } catch (e: Exception) { + Log.e(TAG, "loadExpiries($nostrGroupId) FAILED: ${e.message}", e) + emptyMap() + } + } + + /** + * Delete messages and forget their expiries, rewriting both logs. + * + * A rewrite rather than a tombstone: the point of a disappearing message + * is that the plaintext is gone from disk, and this store holds the only + * copy — the ratchet moved past the ciphertext it came from long ago. + */ + override suspend fun removeMessages( + nostrGroupId: String, + innerEventIds: Set, + ) = withContext(Dispatchers.IO) { + if (innerEventIds.isEmpty()) return@withContext + writeMutex.withLock { + try { + val kept = + readAll(nostrGroupId).filter { json -> + val id = Event.fromJsonOrNull(json)?.id + id == null || id !in innerEventIds + } + writeAll(nostrGroupId, kept) + + val keptExpiries = + readAllFrom(expiriesFile(nostrGroupId)).filter { it.substringBefore(' ') !in innerEventIds } + writeAllTo(expiriesFile(nostrGroupId), keptExpiries) + } catch (e: Exception) { + Log.e(TAG, "removeMessages($nostrGroupId) FAILED: ${e.message}", e) + } + } + } + private fun snapshotFile(nostrGroupId: String): File = File(groupDir(nostrGroupId), "snapshot") /** diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt index 15bc34c0c7..0f9d5b7d15 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt @@ -731,6 +731,11 @@ class GroupEventHandler( // `MarmotGroupList.isDisplayableFeedMessage`. account.marmotGroupList.addMessage(result.groupId, innerNote) + // Traffic is the natural clock for disappearing messages: a + // group being read is a group whose expired messages should + // already be gone. + manager.pruneExpiredMessages(result.groupId) + // Persist the decrypted plaintext so the message // survives an app restart. Marmot/MLS application // messages cannot be re-decrypted once the ratchet diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt index f76eb16ad9..5d3126e21a 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt @@ -27,6 +27,7 @@ import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore import com.vitorpamplona.quartz.marmot.protocolCore.MarmotPublishObligationStore +import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey import kotlinx.coroutines.sync.Mutex import kotlinx.coroutines.sync.withLock @@ -153,6 +154,7 @@ class FileMarmotMessageStore( file(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group messages") epochFile(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group message epochs") snapshotFile(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group system-row baseline") + expiryFile(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group message expiries") } private fun snapshotFile(id: String) = File(dir, "$id.snapshot") @@ -167,6 +169,56 @@ class FileMarmotMessageStore( override suspend fun loadGroupSnapshot(nostrGroupId: String): String? = snapshotFile(nostrGroupId).takeIf { it.exists() }?.readText() + private fun expiryFile(id: String) = File(dir, "$id.expiries") + + /** + * First write wins: an expiry is pinned to the retention of the message's + * own source epoch, so re-persisting the same message after a replay must + * not re-time it under a setting that has since changed. + */ + override suspend fun recordExpiry( + nostrGroupId: String, + innerEventId: String, + expiresAtSecs: Long, + ) { + val target = expiryFile(nostrGroupId) + if (target.exists() && target.readLines().any { it.substringBefore(' ') == innerEventId }) return + SecureFileIO.appendText(target, "$innerEventId $expiresAtSecs\n") + } + + override suspend fun loadExpiries(nostrGroupId: String): Map = + expiryFile(nostrGroupId) + .takeIf { it.exists() } + ?.readLines() + ?.mapNotNull { line -> + val parts = line.trim().split(' ') + if (parts.size != 2) return@mapNotNull null + val at = parts[1].toLongOrNull() ?: return@mapNotNull null + parts[0] to at + }?.toMap() + ?: emptyMap() + + /** Rewrites both logs: a disappearing message has to actually leave the disk. */ + override suspend fun removeMessages( + nostrGroupId: String, + innerEventIds: Set, + ) { + if (innerEventIds.isEmpty()) return + val target = file(nostrGroupId) + if (target.exists()) { + val kept = + target.readLines().filter { line -> + line.isNotBlank() && Event.fromJsonOrNull(line)?.id !in innerEventIds + } + SecureFileIO.writeBytesAtomic(target, (kept.joinToString("\n") + if (kept.isEmpty()) "" else "\n").encodeToByteArray()) + } + val expiries = expiryFile(nostrGroupId) + if (expiries.exists()) { + val kept = expiries.readLines().filter { it.isNotBlank() && it.substringBefore(' ') !in innerEventIds } + SecureFileIO.writeBytesAtomic(expiries, (kept.joinToString("\n") + if (kept.isEmpty()) "" else "\n").encodeToByteArray()) + } + } + private fun epochFile(id: String) = File(dir, "$id.epochs") override suspend fun recordEpoch( diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt index e875e4aea0..7cf6a61e5a 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt @@ -168,6 +168,9 @@ private suspend fun MarmotManager.ingestGroupEvent(ge: GroupEvent): MarmotIngest // MLS ratchets once we decrypt; future reads of the same ciphertext // would fail — persist the plaintext now so restarts/replays see it. persistDecryptedMessage(result.groupId, result.innerEventJson, result.epoch) + // Traffic is the natural clock for expiry: a group that is being + // read is a group whose expired messages should already be gone. + pruneExpiredMessages(result.groupId) MarmotIngestResult.Message(result) } diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 17de8a23ac..705889a667 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -1094,9 +1094,14 @@ class MarmotManager( ) { try { messageStore?.appendMessage(nostrGroupId, innerEventJson) - if (epoch != null) { - Event.fromJsonOrNull(innerEventJson)?.let { messageStore?.recordEpoch(nostrGroupId, it.id, epoch) } + val parsed = Event.fromJsonOrNull(innerEventJson) + if (epoch != null && parsed != null) { + messageStore?.recordEpoch(nostrGroupId, parsed.id, epoch) } + // Pinned here, at the moment the message enters the log, because + // this is the last point at which the retention of its delivering + // epoch is still the group's current retention. + parsed?.let { pinExpiry(nostrGroupId, it) } } catch (e: Exception) { Log.w("MarmotManager", "Failed to persist Marmot message for $nostrGroupId", e) } @@ -1238,12 +1243,89 @@ class MarmotManager( */ suspend fun loadStoredMessages(nostrGroupId: HexKey): List = try { - messageStore?.loadMessages(nostrGroupId) ?: emptyList() + val store = messageStore ?: return emptyList() + // Prune before reading, so a restart cannot show a message that + // expired while the app was closed. Filtering the read alone would + // leave it on disk, and disk is the whole point: the ratchet moved + // past the ciphertext long ago, so this store is the only copy. + pruneExpiredMessages(nostrGroupId) + store.loadMessages(nostrGroupId) } catch (e: Exception) { Log.w("MarmotManager", "Failed to load persisted messages for $nostrGroupId", e) emptyList() } + /** + * The group's disappearing-message duration in seconds, or 0 when off. + * + * Read from the current profile's `0x8005` component, falling back to a + * legacy group's `0xF2EE` field — a legacy group carries the same setting + * in the monolithic blob, and reading only the component would silently + * treat every legacy group as having no expiry at all. + */ + fun retentionSeconds(nostrGroupId: HexKey): Long { + val fromComponent = groupState(nostrGroupId)?.retention?.disappearingMessageSecs + if (fromComponent != null) return fromComponent.toLong() + return groupMetadata(nostrGroupId)?.disappearingMessageSecs?.toLong() ?: 0L + } + + /** + * Pin when [innerEvent] stops being displayable, if this group expires + * messages at all. + * + * Pinned at persist time and never recomputed, because the component says + * a message keeps the retention of its OWN source epoch: a later change to + * the setting must not shorten, extend, or restore the expiry of a message + * that already exists. + * + * The base is the sender's own `created_at`, which the component + * acknowledges is only as trustworthy as the MLS-authenticated sender — + * expiry is advisory, not a deletion guarantee against a hostile member. + */ + private suspend fun pinExpiry( + nostrGroupId: HexKey, + innerEvent: Event, + ) { + val seconds = retentionSeconds(nostrGroupId) + if (seconds <= 0L) return + try { + messageStore?.recordExpiry(nostrGroupId, innerEvent.id, innerEvent.createdAt + seconds) + } catch (e: Exception) { + Log.w("MarmotManager", "Failed to pin expiry for ${innerEvent.id} in $nostrGroupId", e) + } + } + + /** + * Delete every message whose pinned expiry has passed. + * + * @return the inner event ids that were removed, so a front end can drop + * them from a conversation it is already showing rather than waiting for + * the next read. + */ + suspend fun pruneExpiredMessages( + nostrGroupId: HexKey, + nowSecs: Long = TimeUtils.now(), + ): Set { + val store = messageStore ?: return emptySet() + return try { + val expired = store.loadExpiries(nostrGroupId).filterValues { it <= nowSecs }.keys + if (expired.isEmpty()) return emptySet() + store.removeMessages(nostrGroupId, expired) + Log.d("MarmotManager") { "expired ${expired.size} message(s) in ${nostrGroupId.take(8)}…" } + onMessagesExpired?.invoke(nostrGroupId, expired) + expired + } catch (e: Exception) { + Log.w("MarmotManager", "Failed to expire messages for $nostrGroupId", e) + emptySet() + } + } + + /** + * Called for every message this client expires, so a front end can drop it + * from a conversation that is already on screen. + */ + var onMessagesExpired: ((nostrGroupId: HexKey, innerEventIds: Set) -> Unit)? = null + /** * Remove a member from a group. * Returns the commit GroupEvent to publish. diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotRetentionTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotRetentionTest.kt new file mode 100644 index 0000000000..cf5645e11c --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotRetentionTest.kt @@ -0,0 +1,238 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.appComponents.MessageRetentionV1 +import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import com.vitorpamplona.quartz.utils.TimeUtils +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFalse +import kotlin.test.assertTrue + +/** + * Disappearing messages — `marmot.group.message-retention.v1`, component + * `0x8005`. + * + * The component's own rules are what these assert, and two of them are easy to + * get wrong in ways nobody notices until a message that should be gone is + * still there: + * + * - every message pins the retention of its OWN source epoch, so changing the + * setting later must not shorten, extend, or restore an existing message's + * expiry; and + * - a retry of the same MLS message reuses the same pinned value, which + * matters because the ratchet rewinds on restart and relays replay. + * + * Expiry is advisory by design: the duration is authenticated but the base is + * the sender's own `created_at`, so it inherits the trust already placed in an + * MLS-authenticated sender and is not a guarantee against a hostile one. + */ +class MarmotRetentionTest { + private val nostrGroupId = "e".repeat(64) + + private class Fixture { + val signer = NostrSignerInternal(KeyPair()) + val mlsStore = SnapshotStateStore() + val messageStore = SnapshotMessageStore() + val manager = MarmotManager(signer, mlsStore, messageStore, SnapshotBundleStore(), publisher = ACCEPTING_RELAY) + } + + private suspend fun Fixture.createGroup(secs: ULong?) = + manager.createGroup( + nostrGroupId, + // Version 3: the legacy `0xF2EE` blob only carries + // `disappearing_message_secs` from v3 on, so that v1/v2 stays + // byte-for-byte what MDK's older parser accepts. + MarmotGroupData( + nostrGroupId = nostrGroupId, + name = "retention", + relays = listOf("wss://relay.invalid"), + disappearingMessageSecs = secs, + version = 3, + ), + ) + + private suspend fun MarmotManager.storedIds(): List = loadStoredMessages(nostrGroupId).mapNotNull { Event.fromJsonOrNull(it)?.id } + + @Test + fun `a group with no retention keeps its messages`() = + runBlocking { + val f = Fixture() + f.createGroup(null) + val sent = f.manager.buildTextMessage(nostrGroupId, "keep me") + + assertEquals(0L, f.manager.retentionSeconds(nostrGroupId)) + assertTrue(f.manager.pruneExpiredMessages(nostrGroupId, TimeUtils.now() + 10_000_000).isEmpty()) + assertTrue(sent.innerEvent.id in f.manager.storedIds()) + } + + @Test + fun `a message outlives its retention and is deleted, not merely hidden`() = + runBlocking { + val f = Fixture() + f.createGroup(60uL) + val sent = f.manager.buildTextMessage(nostrGroupId, "gone in a minute") + assertEquals(60L, f.manager.retentionSeconds(nostrGroupId)) + + val after = (sent.innerEvent.createdAt) + 61 + assertEquals(setOf(sent.innerEvent.id), f.manager.pruneExpiredMessages(nostrGroupId, after)) + + // Gone from the log itself. A disappearing message that is only + // filtered out of a read is still on disk, and this store holds the + // only copy — the ratchet moved past the ciphertext long ago. + assertFalse(sent.innerEvent.id in f.manager.storedIds()) + assertTrue(f.messageStore.loadExpiries(nostrGroupId).isEmpty()) + } + + @Test + fun `a message inside its window is untouched`() = + runBlocking { + val f = Fixture() + f.createGroup(3600uL) + val sent = f.manager.buildTextMessage(nostrGroupId, "still fresh") + + assertTrue(f.manager.pruneExpiredMessages(nostrGroupId, sent.innerEvent.createdAt + 60).isEmpty()) + assertTrue(sent.innerEvent.id in f.manager.storedIds()) + } + + @Test + fun `expiry is pinned at the source epoch and a later change does not re-time it`() = + runBlocking { + // The rule that is easiest to get wrong: recomputing expiry from + // the CURRENT setting would let one member shorten everyone's + // history retroactively, or restore what should already be gone. + val f = Fixture() + f.createGroup(60uL) + val sent = f.manager.buildTextMessage(nostrGroupId, "pinned at sixty") + + f.manager.updateGroupMetadata( + nostrGroupId, + MarmotGroupData( + nostrGroupId = nostrGroupId, + name = "retention", + relays = listOf("wss://relay.invalid"), + disappearingMessageSecs = 86_400uL, + version = 3, + ), + ) + assertEquals(86_400L, f.manager.retentionSeconds(nostrGroupId)) + + // Still expires on the old sixty seconds, not the new day. + assertEquals( + setOf(sent.innerEvent.id), + f.manager.pruneExpiredMessages(nostrGroupId, sent.innerEvent.createdAt + 61), + ) + } + + @Test + fun `re-persisting the same message reuses its pinned expiry`() = + runBlocking { + // The ratchet rewinds on restart and relays replay recent kind:445 + // events, so the same message really is persisted twice. If the + // second write re-timed it, a message could keep postponing its own + // expiry every time it was replayed. + val f = Fixture() + f.createGroup(60uL) + val sent = f.manager.buildTextMessage(nostrGroupId, "replayed") + val pinned = f.messageStore.loadExpiries(nostrGroupId)[sent.innerEvent.id] + + f.manager.updateGroupMetadata( + nostrGroupId, + MarmotGroupData( + nostrGroupId = nostrGroupId, + name = "retention", + relays = listOf("wss://relay.invalid"), + disappearingMessageSecs = 86_400uL, + version = 3, + ), + ) + f.manager.persistDecryptedMessage(nostrGroupId, sent.innerEvent.toJson()) + + assertEquals(pinned, f.messageStore.loadExpiries(nostrGroupId)[sent.innerEvent.id]) + } + + @Test + fun `reading a group expires whatever fell due while it was closed`() = + runBlocking { + // The restart case: nothing is running to notice the moment a + // message falls due, so the read itself has to. The message is + // back-dated, which is also the component's documented caveat — + // the base is the sender's own `created_at`, so expiry is only as + // trustworthy as the MLS-authenticated sender. + val f = Fixture() + f.createGroup(60uL) + val stale = + Event( + id = "1".repeat(64), + pubKey = f.signer.pubKey, + createdAt = TimeUtils.now() - 3600, + kind = 9, + tags = emptyArray(), + content = "sent an hour ago", + sig = "", + ) + f.manager.persistDecryptedMessage(nostrGroupId, stale.toJson()) + + assertFalse(stale.id in f.manager.storedIds()) + } + + @Test + fun `an expiring client tells the front end which messages went`() = + runBlocking { + // A message gone from disk but still on screen has not disappeared. + val f = Fixture() + f.createGroup(60uL) + val sent = f.manager.buildTextMessage(nostrGroupId, "drop me from the view") + val announced = mutableListOf() + f.manager.onMessagesExpired = { _, ids -> announced.addAll(ids) } + + f.manager.pruneExpiredMessages(nostrGroupId, sent.innerEvent.createdAt + 61) + assertEquals(listOf(sent.innerEvent.id), announced) + } + + @Test + fun `the current profile reads retention from its own component`() = + runBlocking { + // The legacy blob only carries the setting from v3, so in practice + // a group created by the reference client expresses it as component + // `0x8005` instead. Both have to reach the same answer or a + // disappearing message stops disappearing at the profile boundary. + val f = Fixture() + f.manager.createCurrentProfileGroup( + nostrGroupId = nostrGroupId, + relays = listOf("wss://relay.invalid"), + retention = MessageRetentionV1(120uL), + ) + assertEquals(120L, f.manager.retentionSeconds(nostrGroupId)) + + val sent = f.manager.buildTextMessage(nostrGroupId, "two minutes") + assertTrue(f.manager.pruneExpiredMessages(nostrGroupId, sent.innerEvent.createdAt + 60).isEmpty()) + assertEquals( + setOf(sent.innerEvent.id), + f.manager.pruneExpiredMessages(nostrGroupId, sent.innerEvent.createdAt + 121), + ) + } +} diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotTestStores.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotTestStores.kt index 1ebd9d9270..9b6f97160d 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotTestStores.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotTestStores.kt @@ -23,6 +23,7 @@ package com.vitorpamplona.amethyst.commons.marmot import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore +import com.vitorpamplona.quartz.nip01Core.core.Event // In-memory stand-ins for the durable stores a MarmotManager needs. // @@ -67,6 +68,7 @@ class SnapshotStateStore : MlsGroupStateStore { class SnapshotMessageStore : MarmotMessageStore { private val messages = mutableMapOf>() private val snapshots = mutableMapOf() + private val expiries = mutableMapOf>() override suspend fun appendMessage( nostrGroupId: String, @@ -81,6 +83,7 @@ class SnapshotMessageStore : MarmotMessageStore { override suspend fun delete(nostrGroupId: String) { messages.remove(nostrGroupId) snapshots.remove(nostrGroupId) + expiries.remove(nostrGroupId) } override suspend fun recordGroupSnapshot( @@ -91,6 +94,27 @@ class SnapshotMessageStore : MarmotMessageStore { } override suspend fun loadGroupSnapshot(nostrGroupId: String): String? = snapshots[nostrGroupId] + + // Disappearing messages. First write wins, mirroring the durable stores: + // an expiry is pinned to its message's own source epoch and a replay must + // not re-time it. + override suspend fun recordExpiry( + nostrGroupId: String, + innerEventId: String, + expiresAtSecs: Long, + ) { + expiries.getOrPut(nostrGroupId) { mutableMapOf() }.putIfAbsent(innerEventId, expiresAtSecs) + } + + override suspend fun loadExpiries(nostrGroupId: String): Map = expiries[nostrGroupId]?.toMap() ?: emptyMap() + + override suspend fun removeMessages( + nostrGroupId: String, + innerEventIds: Set, + ) { + messages[nostrGroupId]?.removeAll { json -> Event.fromJsonOrNull(json)?.id in innerEventIds } + expiries[nostrGroupId]?.keys?.removeAll(innerEventIds) + } } class SnapshotBundleStore : KeyPackageBundleStore { diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt index 82f056316b..a2b3959bed 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt @@ -111,4 +111,43 @@ interface MarmotMessageStore { /** The last recorded snapshot, or null when there is no baseline yet. */ suspend fun loadGroupSnapshot(nostrGroupId: String): String? = null + + // ── Disappearing messages ──────────────────────────────────────────────── + // + // The three members below are one feature and are implemented together or + // not at all: expiries that are never recorded read back empty, and an + // empty set is never removed. A store that implements none of them simply + // keeps every message forever, which is a client that cannot honour + // `marmot.group.message-retention.v1` — degraded, not broken, and the same + // shape of optionality as [recordEpoch]. + // + // Expiry is pinned per message rather than recomputed: the component says + // a message keeps the retention of its OWN source epoch, so a later change + // must not re-time a message that already exists. + + /** + * Remember when [innerEventId] stops being displayable. + * + * @param expiresAtSecs absolute Unix seconds, already `created_at + secs`. + */ + suspend fun recordExpiry( + nostrGroupId: String, + innerEventId: String, + expiresAtSecs: Long, + ) = Unit + + /** Inner event id → its pinned expiry, for what was recorded. */ + suspend fun loadExpiries(nostrGroupId: String): Map = emptyMap() + + /** + * Delete these messages, and any expiry recorded for them, permanently. + * + * The deletion is the feature: a disappearing message that is merely + * hidden is still on disk, and this store is the only durable copy — the + * MLS ratchet has long since moved past the ciphertext it came from. + */ + suspend fun removeMessages( + nostrGroupId: String, + innerEventIds: Set, + ) = Unit } From 99433d9f5cda1a04c76a86c40654585e6fcf5b04 Mon Sep 17 00:00:00 2001 From: Claude Date: Wed, 9 Sep 2026 23:32:41 +0000 Subject: [PATCH 46/79] test(marmot): pin the broker's certificate in the stream tests MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Tests 18 and 19 failed inside TLS before a single frame was written: CRYPTO_ERROR (TLS alert 42): certificate chain validation failed: PKIX path building failed: unable to find valid certification path The reference broker generates a self-signed certificate — its startup JSON says so, `"tls":"generated_self_signed"` — and there is no CA anywhere in this picture, so chaining it to the JDK trust store could never have worked. The binding anticipates exactly this: a client MAY pin the endpoint certificate by SHA-256 instead of chaining, which is what `--pin-sha256` and `PinnedCertificateValidator` are for. The broker prints the fingerprint the pin needs, in the same JSON line the harness already waits on; the harness just never read it. So `start_quic_broker` now captures `server_cert_sha256_fingerprint` and fails loudly if it is absent, and the three `amy marmot stream send|watch` calls pass it. `wn` reaches the same place with `--insecure-local`; pinning is the better half of that trade, since the peer still has to sign the TLS transcript with the pinned certificate's private key. 25 passed, 0 failed, 0 skipped. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- cli/tests/marmot/marmot-interop-headless.sh | 2 ++ cli/tests/marmot/setup.sh | 13 ++++++++++++- cli/tests/marmot/tests-extras.sh | 8 +++++--- 3 files changed, 19 insertions(+), 4 deletions(-) diff --git a/cli/tests/marmot/marmot-interop-headless.sh b/cli/tests/marmot/marmot-interop-headless.sh index b754ec64b0..4dc78eb538 100755 --- a/cli/tests/marmot/marmot-interop-headless.sh +++ b/cli/tests/marmot/marmot-interop-headless.sh @@ -61,6 +61,8 @@ BROKER_HOST="${BROKER_HOST:-127.0.0.1}" BROKER_PORT="${BROKER_PORT:-4455}" BROKER_URI="quic://$BROKER_HOST:$BROKER_PORT" BROKER_PID="" +# SHA-256 of the broker's self-signed leaf, read from its startup JSON. +BROKER_PIN="" # A loopback Blossom blob store for the encrypted-media tests. Ciphertext only: # the file key comes from each group's MLS exporter and never reaches it. diff --git a/cli/tests/marmot/setup.sh b/cli/tests/marmot/setup.sh index 88aa4150f6..c5ebb35b36 100644 --- a/cli/tests/marmot/setup.sh +++ b/cli/tests/marmot/setup.sh @@ -143,7 +143,18 @@ start_quic_broker() { local deadline=$(( $(date +%s) + 15 )) while [[ $(date +%s) -lt $deadline ]]; do if grep -q '"local_addr"' "$STATE_DIR/broker/stdout.log" 2>/dev/null; then - info "broker pid $BROKER_PID ready" + # The broker generates a self-signed certificate and prints its + # fingerprint. `amy` pins that exact leaf rather than trusting a chain — + # there is no CA in this picture, and without the pin every stream test + # fails inside TLS before a single frame is written. + BROKER_PIN=$(sed -n 's/.*"server_cert_sha256_fingerprint":"\([0-9a-f]*\)".*/\1/p' \ + "$STATE_DIR/broker/stdout.log" | head -1) + if [[ -z "$BROKER_PIN" ]]; then + fail_msg "broker printed no server_cert_sha256_fingerprint — cannot pin it" + BROKER_PID="" + return 1 + fi + info "broker pid $BROKER_PID ready (cert ${BROKER_PIN:0:16}…)" return 0 fi if ! kill -0 "$BROKER_PID" 2>/dev/null; then break; fi diff --git a/cli/tests/marmot/tests-extras.sh b/cli/tests/marmot/tests-extras.sh index 9df6cb7a34..10dbcb04ee 100644 --- a/cli/tests/marmot/tests-extras.sh +++ b/cli/tests/marmot/tests-extras.sh @@ -456,7 +456,7 @@ test_18_agent_stream_amy_publishes() { local send_json thash chunks send_json=$(amy_json marmot stream send "$gid" --stream-id "$sid" --start-event-id "$seid" \ - --broker "$BROKER_URI" "Hello " "from " "amethyst") || { + --broker "$BROKER_URI" --pin-sha256 "$BROKER_PIN" "Hello " "from " "amethyst") || { record_result "$id" fail "amy stream send failed"; return } thash=$(printf '%s' "$send_json" | jq -r '.transcript_hash // empty') @@ -466,7 +466,8 @@ test_18_agent_stream_amy_publishes() { # Our own subscriber must recover the stream from the broker's replay window # and fold it to the same transcript the publisher computed. local watch_json - watch_json=$(amy_json marmot stream watch "$gid" --stream-id "$sid" --timeout 15) || { + watch_json=$(amy_json marmot stream watch "$gid" --stream-id "$sid" --timeout 15 \ + --pin-sha256 "$BROKER_PIN") || { record_result "$id" fail "amy stream watch failed"; return } printf 'stream18 watch=%s\n' "$watch_json" >>"$LOG_FILE" @@ -535,7 +536,8 @@ test_19_agent_stream_wn_publishes() { fi local watch_out="$STATE_DIR/stream-19-watch.json" - ( amy_a marmot stream watch "$gid" --stream-id "$wsid" --timeout 25 >"$watch_out" 2>>"$LOG_FILE" ) & + ( amy_a marmot stream watch "$gid" --stream-id "$wsid" --timeout 25 \ + --pin-sha256 "$BROKER_PIN" >"$watch_out" 2>>"$LOG_FILE" ) & local watch_pid=$! sleep 4 From 37cd798e99426165903bf2501190b45b98a87fee Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 02:16:25 +0000 Subject: [PATCH 47/79] feat(marmot): pin retention to the delivering epoch, and set it from amy MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Three related pieces. **The pinning was approximate.** Expiry was pinned from the group's CURRENT retention at persist time, which is right for a message delivered under the current epoch and wrong for one delivered under an older one — a kind:445 held back as a retained candidate, or replayed after a restart, is decrypted under an epoch the group has since moved past. Pinning that to today's setting is precisely what the component forbids. The store now keeps a small epoch → retention history, written wherever the epoch may have advanced, and the pin reads the delivering epoch's value. The fallback to the current value is not a shrug: a group whose setting never changed has one value at every epoch, which is the overwhelmingly common case. MDK carries `source_epoch` on its rows for the same reason. **`amy` can set it.** `marmot group create --disappearing-secs N`, on both profiles: component `0x8005` for a current-profile group, and the legacy blob for `--legacy`, where asking for it bumps the version to 3 because v1/v2 deliberately omit the field to stay byte-compatible with MDK's older parser. **Interop test 26.** Nothing proved MDK accepts a GroupContext that REQUIRES `0x8005` with our bytes, and retention has the nastiest encoding in the set: eight big-endian bytes with no length prefix, unlike almost every other Marmot field, and MIP-01 spelled it differently. amy creates such a group, wn joins it, and messaging round-trips. It asserts acceptance rather than read-back, because wn's CLI `group_json` does not surface the retention value — that field is on the uniffi struct the apps consume, not this surface. Acceptance is still the encoding test: a required component whose bytes wn cannot decode leaves the group unreadable, so `groups show` returning it at all means the eight bytes parsed. The direction is one-way for the same reason as push — `wn groups` has no command that sets retention. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../model/marmot/AndroidMarmotMessageStore.kt | 45 ++++++++++++- .../loggedIn/DecryptAndIndexProcessor.kt | 1 + .../cli/commands/GroupCreateCommand.kt | 39 +++++++++-- .../amethyst/cli/stores/FileStores.kt | 27 ++++++++ cli/tests/marmot/marmot-interop-headless.sh | 1 + cli/tests/marmot/tests-media.sh | 62 +++++++++++++++++ .../amethyst/commons/marmot/MarmotIngest.kt | 2 + .../amethyst/commons/marmot/MarmotManager.kt | 50 +++++++++++++- .../commons/marmot/MarmotRetentionTest.kt | 67 +++++++++++++++++++ .../commons/marmot/MarmotTestStores.kt | 12 ++++ .../marmot/mls/group/MarmotMessageStore.kt | 22 ++++++ 11 files changed, 319 insertions(+), 9 deletions(-) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt index ab59b622d8..7f7874fffe 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidMarmotMessageStore.kt @@ -112,7 +112,7 @@ class AndroidMarmotMessageStore( override suspend fun delete(nostrGroupId: String) { withContext(Dispatchers.IO) { writeMutex.withLock { - for (file in listOf(messagesFile(nostrGroupId), epochsFile(nostrGroupId), snapshotFile(nostrGroupId), expiriesFile(nostrGroupId))) { + for (file in listOf(messagesFile(nostrGroupId), epochsFile(nostrGroupId), snapshotFile(nostrGroupId), expiriesFile(nostrGroupId), epochRetentionsFile(nostrGroupId))) { if (file.exists() && !file.delete()) { Log.w(TAG) { "delete($nostrGroupId): failed to remove ${file.absolutePath}" } } @@ -243,6 +243,49 @@ class AndroidMarmotMessageStore( } } + private fun epochRetentionsFile(nostrGroupId: String): File = File(groupDir(nostrGroupId), "epoch_retentions") + + /** + * What retention this group required at each epoch. + * + * First write wins per epoch: an epoch's required components are fixed the + * moment it exists, so a second answer for the same epoch would be a bug + * rather than an update. + */ + override suspend fun recordEpochRetention( + nostrGroupId: String, + epoch: Long, + retentionSecs: Long, + ) = withContext(Dispatchers.IO) { + writeMutex.withLock { + try { + val existing = readAllFrom(epochRetentionsFile(nostrGroupId)).toMutableList() + if (existing.any { it.substringBefore(' ') == epoch.toString() }) return@withLock + existing.add("$epoch $retentionSecs") + writeAllTo(epochRetentionsFile(nostrGroupId), existing) + } catch (e: Exception) { + Log.e(TAG, "recordEpochRetention($nostrGroupId) FAILED: ${e.message}", e) + } + } + } + + override suspend fun loadEpochRetentions(nostrGroupId: String): Map = + withContext(Dispatchers.IO) { + try { + readAllFrom(epochRetentionsFile(nostrGroupId)) + .mapNotNull { line -> + val parts = line.trim().split(' ') + if (parts.size != 2) return@mapNotNull null + val epoch = parts[0].toLongOrNull() ?: return@mapNotNull null + val secs = parts[1].toLongOrNull() ?: return@mapNotNull null + epoch to secs + }.toMap() + } catch (e: Exception) { + Log.e(TAG, "loadEpochRetentions($nostrGroupId) FAILED: ${e.message}", e) + emptyMap() + } + } + private fun snapshotFile(nostrGroupId: String): File = File(groupDir(nostrGroupId), "snapshot") /** diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt index 0f9d5b7d15..a9b042bb65 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt @@ -776,6 +776,7 @@ class GroupEventHandler( // row is derived from. Deriving here covers OTHER members' // commits; our own are derived by `commitAndPublish`. Both // reach the feed through `onSystemRowDerived`. + manager.recordRetentionForCurrentEpoch(result.groupId) manager.syncGroupSystemRows(result.groupId) // Epoch just advanced — drain any kind:445 events that // previously failed as UndecryptableOuterLayer for this diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCreateCommand.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCreateCommand.kt index 7adb4d60b0..e81ef050a1 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCreateCommand.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCreateCommand.kt @@ -25,6 +25,7 @@ import com.vitorpamplona.amethyst.cli.Context import com.vitorpamplona.amethyst.cli.DataDir import com.vitorpamplona.amethyst.cli.Output import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 +import com.vitorpamplona.quartz.marmot.appComponents.MessageRetentionV1 import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.utils.RandomInstance @@ -37,6 +38,21 @@ object GroupCreateCommand { val args = Args(rest) val name = args.flag("name", "")!! val legacy = args.bool("legacy") + // Disappearing messages (`marmot.group.message-retention.v1`, 0x8005). + // Fixed at creation: promoting a component to required later needs its + // state installed first, which is a second commit this command does not + // make. + val disappearing = args.flag("disappearing-secs", "")!! + val disappearingSecs = + if (disappearing.isEmpty()) { + null + } else { + disappearing.toULongOrNull()?.takeIf { it > 0uL } + ?: return Output.error( + "bad_args", + "--disappearing-secs must be a positive whole number of seconds", + ) + } args.rejectUnknown() Context.open(dataDir).use { ctx -> ctx.prepare() @@ -53,13 +69,23 @@ object GroupCreateCommand { // so later invitees receive a pre-populated group from the // welcome and never have to chase an undecryptable bootstrap // commit that predates their membership. + // The legacy blob only carries `disappearing_message_secs` + // from v3 on, so asking for it bumps the version — v1/v2 stays + // byte-for-byte what MDK's older parser accepts. val metadata = - MarmotGroupData.bootstrap( - nostrGroupId = gid, - creatorPubKey = ctx.identity.pubKeyHex, - outboxRelays = outboxUrls, - name = name, - ) + MarmotGroupData + .bootstrap( + nostrGroupId = gid, + creatorPubKey = ctx.identity.pubKeyHex, + outboxRelays = outboxUrls, + name = name, + ).let { + if (disappearingSecs == null) { + it + } else { + it.copy(disappearingMessageSecs = disappearingSecs, version = 3) + } + } ctx.marmot.createGroup(gid, initialMetadata = metadata) } else { // Current profile by default. The difference is what the group @@ -72,6 +98,7 @@ object GroupCreateCommand { nostrGroupId = gid, relays = outboxUrls, profile = if (name.isEmpty()) null else GroupProfileV1(name, ""), + retention = disappearingSecs?.let { MessageRetentionV1(it) }, ) } diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt index 5d3126e21a..c8cfb68416 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt @@ -155,6 +155,7 @@ class FileMarmotMessageStore( epochFile(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group message epochs") snapshotFile(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group system-row baseline") expiryFile(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group message expiries") + epochRetentionFile(nostrGroupId).deleteOrWarn("FileMarmotMessageStore", "group epoch retentions") } private fun snapshotFile(id: String) = File(dir, "$id.snapshot") @@ -219,6 +220,32 @@ class FileMarmotMessageStore( } } + private fun epochRetentionFile(id: String) = File(dir, "$id.epoch-retentions") + + /** First write wins: an epoch's required components are fixed once it exists. */ + override suspend fun recordEpochRetention( + nostrGroupId: String, + epoch: Long, + retentionSecs: Long, + ) { + val target = epochRetentionFile(nostrGroupId) + if (target.exists() && target.readLines().any { it.substringBefore(' ') == epoch.toString() }) return + SecureFileIO.appendText(target, "$epoch $retentionSecs\n") + } + + override suspend fun loadEpochRetentions(nostrGroupId: String): Map = + epochRetentionFile(nostrGroupId) + .takeIf { it.exists() } + ?.readLines() + ?.mapNotNull { line -> + val parts = line.trim().split(' ') + if (parts.size != 2) return@mapNotNull null + val epoch = parts[0].toLongOrNull() ?: return@mapNotNull null + val secs = parts[1].toLongOrNull() ?: return@mapNotNull null + epoch to secs + }?.toMap() + ?: emptyMap() + private fun epochFile(id: String) = File(dir, "$id.epochs") override suspend fun recordEpoch( diff --git a/cli/tests/marmot/marmot-interop-headless.sh b/cli/tests/marmot/marmot-interop-headless.sh index 4dc78eb538..a8e971cce8 100755 --- a/cli/tests/marmot/marmot-interop-headless.sh +++ b/cli/tests/marmot/marmot-interop-headless.sh @@ -207,6 +207,7 @@ ALL_TESTS=( test_23_deletion_amy_to_wn test_24_media_v2_amy_to_wn test_25_media_v2_wn_to_amy + test_26_retention_amy_to_wn ) # --tests runs a subset in the order given. Most tests read state a previous diff --git a/cli/tests/marmot/tests-media.sh b/cli/tests/marmot/tests-media.sh index 33c5dc28d7..7724b953cc 100644 --- a/cli/tests/marmot/tests-media.sh +++ b/cli/tests/marmot/tests-media.sh @@ -342,3 +342,65 @@ test_25_media_v2_wn_to_amy() { record_result "$id" fail "amy decrypted different bytes than wn sent" fi } + +# --- 26: disappearing messages ------------------------------------------------ +# `marmot.group.message-retention.v1` (0x8005) has the nastiest encoding in the +# component set: eight big-endian bytes with NO length prefix, unlike almost +# every other Marmot field, and MIP-01 spelled it differently. Nothing else +# proves MDK accepts a GroupContext that REQUIRES it with our bytes — and if it +# does not, the failure is not cosmetic: wn cannot read the group at all. +# +# One-directional on purpose. `wn` has no command that sets retention +# (`wn groups` is list/create/show/add-members/remove-members/members/admins/ +# relays/leave/rename/set-avatar-url), so the reverse direction is untestable +# here. The encode side is the one that can be wrong anyway. What amy DOES with +# the expiry once it holds one is unit-tested in `MarmotRetentionTest`; this is +# purely "does the other implementation accept and read what we wrote". +test_26_retention_amy_to_wn() { + banner "Test 26 — amy creates a group with disappearing messages; wn reads the policy" + local id="26 retention amy->wn" + + local want=3600 + local out gid mls_gid + out=$(amy_json marmot group create --name "Interop-Retention" --disappearing-secs "$want") || { + record_result "$id" fail "amy group create --disappearing-secs failed"; return + } + gid=$(printf '%s' "$out" | jq -r '.group_id') + mls_gid=$(printf '%s' "$out" | jq -r '.mls_group_id') + if [[ -z "$gid" || "$gid" == "null" ]]; then + record_result "$id" fail "amy reported no group id"; return + fi + + amy_json marmot group add "$gid" "$B_NPUB" >/dev/null || { + record_result "$id" fail "amy could not invite wn"; return + } + + # The Welcome is the real assertion: a group requiring a component wn cannot + # decode is a group wn refuses to join. + local b_gid + b_gid=$(wait_for_invite B 60) || { + record_result "$id" fail "wn never received a Welcome for a group requiring 0x8005"; return + } + wn_b groups accept "$b_gid" >/dev/null 2>&1 || true + + # wn's CLI `group_json` does not surface the retention value — it is on the + # uniffi group struct the apps consume, not this surface — so the assertion + # is acceptance rather than read-back. That is still the encoding test: the + # group REQUIRES 0x8005, and a required component whose bytes wn cannot + # decode makes the group unreadable, so `groups show` returning it at all + # means our eight big-endian bytes parsed. + if ! wn_group_field_becomes "$mls_gid" '.group.group_id // empty' "$mls_gid" 120; then + record_result "$id" fail "wn never surfaced a group that requires 0x8005"; return + fi + + # And the group still works: a required component that decodes but breaks + # messaging would pass the check above and still be useless. + wn_b messages send "$mls_gid" "retention round trip" >/dev/null 2>&1 || { + record_result "$id" fail "wn could not send into the retention group"; return + } + if amy_json marmot await message "$gid" --match "retention round trip" --timeout 90 >/dev/null; then + record_result "$id" pass + else + record_result "$id" fail "amy never received wn's message in the retention group" + fi +} diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt index 7cf6a61e5a..9b4a361ee3 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt @@ -143,6 +143,7 @@ private suspend fun MarmotManager.ingestGiftWrapUncached(wrap: GiftWrapEvent): M // writing any: a joiner announcing every existing member as // newly added would be a timeline full of events that never // happened. + recordRetentionForCurrentEpoch(result.nostrGroupId) syncGroupSystemRows(result.nostrGroupId) MarmotIngestResult.JoinedGroup( nostrGroupId = result.nostrGroupId, @@ -180,6 +181,7 @@ private suspend fun MarmotManager.ingestGroupEvent(ge: GroupEvent): MarmotIngest // kind:1210 row is derived from. Deriving here rather than at // render time means the rows land in the same log as the messages // they sit between, in the order they happened. + recordRetentionForCurrentEpoch(result.groupId) syncGroupSystemRows(result.groupId) MarmotIngestResult.Commit(result) } diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 705889a667..9ccdefb93d 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -759,6 +759,7 @@ class MarmotManager( // immediately satisfied. Every LATER commit takes the normal // publish-before-apply path. publishGate.satisfyEmptyObligation(nostrGroupId) + recordRetentionForCurrentEpoch(nostrGroupId) inboundProcessor.trackGroup(nostrGroupId) subscriptionManager.subscribeGroup(nostrGroupId) Log.d("MarmotManager") { "createGroup($nostrGroupId): persisted and subscribed" } @@ -800,6 +801,7 @@ class MarmotManager( // Same empty-obligation exception as [createGroup]: a one-member // epoch-0 group has no peer that failure to publish could fork. publishGate.satisfyEmptyObligation(nostrGroupId) + recordRetentionForCurrentEpoch(nostrGroupId) inboundProcessor.trackGroup(nostrGroupId) subscriptionManager.subscribeGroup(nostrGroupId) return nostrGroupId @@ -891,6 +893,7 @@ class MarmotManager( // derived rows a peer's commit would. The actor is known here in a // way it is not for an inbound commit, which is what lets a // self-removal read as "left" rather than "removed". + recordRetentionForCurrentEpoch(nostrGroupId) syncGroupSystemRows(nostrGroupId, actor = signer.pubKey) } else { Log.w("MarmotManager") { @@ -1101,7 +1104,7 @@ class MarmotManager( // Pinned here, at the moment the message enters the log, because // this is the last point at which the retention of its delivering // epoch is still the group's current retention. - parsed?.let { pinExpiry(nostrGroupId, it) } + parsed?.let { pinExpiry(nostrGroupId, it, epoch) } } catch (e: Exception) { Log.w("MarmotManager", "Failed to persist Marmot message for $nostrGroupId", e) } @@ -1285,8 +1288,9 @@ class MarmotManager( private suspend fun pinExpiry( nostrGroupId: HexKey, innerEvent: Event, + sourceEpoch: Long?, ) { - val seconds = retentionSeconds(nostrGroupId) + val seconds = retentionForEpoch(nostrGroupId, sourceEpoch) if (seconds <= 0L) return try { messageStore?.recordExpiry(nostrGroupId, innerEvent.id, innerEvent.createdAt + seconds) @@ -1295,6 +1299,48 @@ class MarmotManager( } } + /** + * The retention that applied at [sourceEpoch] — the epoch that DELIVERED + * the message — falling back to the group's current value. + * + * The distinction only shows up on a message decrypted late: a retained + * candidate, or a replay after a restart, arrives under an epoch the group + * has since moved past. Pinning it to today's setting is exactly what the + * component forbids, so the recorded history wins whenever it has an entry + * for that epoch. The fallback is not a shrug — a group whose setting never + * changed has one value at every epoch, and that is the overwhelmingly + * common case. + */ + private suspend fun retentionForEpoch( + nostrGroupId: HexKey, + sourceEpoch: Long?, + ): Long { + if (sourceEpoch != null) { + try { + messageStore?.loadEpochRetentions(nostrGroupId)?.get(sourceEpoch)?.let { return it } + } catch (e: Exception) { + Log.w("MarmotManager", "Failed to read epoch retentions for $nostrGroupId", e) + } + } + return retentionSeconds(nostrGroupId) + } + + /** + * Write down what this group's retention is at its current epoch. + * + * Called wherever the epoch may just have advanced, so the history has an + * entry before any message delivered under that epoch needs one. + */ + suspend fun recordRetentionForCurrentEpoch(nostrGroupId: HexKey) { + val store = messageStore ?: return + val epoch = currentEpoch(nostrGroupId) ?: return + try { + store.recordEpochRetention(nostrGroupId, epoch, retentionSeconds(nostrGroupId)) + } catch (e: Exception) { + Log.w("MarmotManager", "Failed to record retention at epoch $epoch for $nostrGroupId", e) + } + } + /** * Delete every message whose pinned expiry has passed. * diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotRetentionTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotRetentionTest.kt index cf5645e11c..b3faee4c84 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotRetentionTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotRetentionTest.kt @@ -30,6 +30,7 @@ import kotlinx.coroutines.runBlocking import kotlin.test.Test import kotlin.test.assertEquals import kotlin.test.assertFalse +import kotlin.test.assertNotNull import kotlin.test.assertTrue /** @@ -235,4 +236,70 @@ class MarmotRetentionTest { f.manager.pruneExpiredMessages(nostrGroupId, sent.innerEvent.createdAt + 121), ) } + + @Test + fun `a message delivered under an older epoch keeps that epoch's retention`() = + runBlocking { + // The case the fallback used to get wrong. A kind:445 held back as + // a retained candidate is decrypted under an epoch the group has + // since moved past; pinning it to today's setting is exactly what + // the component forbids. + val f = Fixture() + f.createGroup(60uL) + val epochZero = assertNotNull(f.manager.currentEpoch(nostrGroupId)) + + f.manager.updateGroupMetadata( + nostrGroupId, + MarmotGroupData( + nostrGroupId = nostrGroupId, + name = "retention", + relays = listOf("wss://relay.invalid"), + disappearingMessageSecs = 86_400uL, + version = 3, + ), + ) + assertEquals(86_400L, f.manager.retentionSeconds(nostrGroupId)) + assertTrue(f.manager.currentEpoch(nostrGroupId)!! > epochZero, "the rename must advance the epoch") + + // Arrives now, but was delivered by the epoch that still said 60s. + val late = + Event( + id = "2".repeat(64), + pubKey = f.signer.pubKey, + createdAt = TimeUtils.now(), + kind = 9, + tags = emptyArray(), + content = "decrypted late", + sig = "", + ) + f.manager.persistDecryptedMessage(nostrGroupId, late.toJson(), epoch = epochZero) + + assertEquals( + late.createdAt + 60, + f.messageStore.loadExpiries(nostrGroupId)[late.id], + "a late message must keep its source epoch's retention, not the current one", + ) + } + + @Test + fun `an unknown epoch falls back to the current retention`() = + runBlocking { + // Not a shrug: a group whose setting never changed has one value at + // every epoch, and that is the overwhelmingly common case. + val f = Fixture() + f.createGroup(60uL) + val orphan = + Event( + id = "3".repeat(64), + pubKey = f.signer.pubKey, + createdAt = TimeUtils.now(), + kind = 9, + tags = emptyArray(), + content = "no history for this epoch", + sig = "", + ) + f.manager.persistDecryptedMessage(nostrGroupId, orphan.toJson(), epoch = 9_999L) + + assertEquals(orphan.createdAt + 60, f.messageStore.loadExpiries(nostrGroupId)[orphan.id]) + } } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotTestStores.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotTestStores.kt index 9b6f97160d..3fbc237a0d 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotTestStores.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotTestStores.kt @@ -69,6 +69,7 @@ class SnapshotMessageStore : MarmotMessageStore { private val messages = mutableMapOf>() private val snapshots = mutableMapOf() private val expiries = mutableMapOf>() + private val epochRetentions = mutableMapOf>() override suspend fun appendMessage( nostrGroupId: String, @@ -84,6 +85,7 @@ class SnapshotMessageStore : MarmotMessageStore { messages.remove(nostrGroupId) snapshots.remove(nostrGroupId) expiries.remove(nostrGroupId) + epochRetentions.remove(nostrGroupId) } override suspend fun recordGroupSnapshot( @@ -115,6 +117,16 @@ class SnapshotMessageStore : MarmotMessageStore { messages[nostrGroupId]?.removeAll { json -> Event.fromJsonOrNull(json)?.id in innerEventIds } expiries[nostrGroupId]?.keys?.removeAll(innerEventIds) } + + override suspend fun recordEpochRetention( + nostrGroupId: String, + epoch: Long, + retentionSecs: Long, + ) { + epochRetentions.getOrPut(nostrGroupId) { mutableMapOf() }.putIfAbsent(epoch, retentionSecs) + } + + override suspend fun loadEpochRetentions(nostrGroupId: String): Map = epochRetentions[nostrGroupId]?.toMap() ?: emptyMap() } class SnapshotBundleStore : KeyPackageBundleStore { diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt index a2b3959bed..4af30c5c3c 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MarmotMessageStore.kt @@ -139,6 +139,28 @@ interface MarmotMessageStore { /** Inner event id → its pinned expiry, for what was recorded. */ suspend fun loadExpiries(nostrGroupId: String): Map = emptyMap() + /** + * Remember the retention this group required AT [epoch]. + * + * Kept because a message pins the retention of its own source epoch, and + * the source epoch is not always the current one: a kind:445 held back as a + * retained candidate, or replayed after a restart, is decrypted under an + * epoch the group has since moved past. Without this history such a message + * would be pinned to whatever the setting happens to be at decrypt time — + * which is the one thing the component says must not happen. + * + * Small and append-only: one entry per epoch that changed it, not one per + * message. + */ + suspend fun recordEpochRetention( + nostrGroupId: String, + epoch: Long, + retentionSecs: Long, + ) = Unit + + /** MLS epoch → the retention it required, for what was recorded. */ + suspend fun loadEpochRetentions(nostrGroupId: String): Map = emptyMap() + /** * Delete these messages, and any expiry recorded for them, permanently. * From 5b1ac283d511616bfe11b3d93344dc36783e9772 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 03:40:05 +0000 Subject: [PATCH 48/79] feat(marmot): retention UI, pinned reference engine, and a scenario-vector runner MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit **Disappearing messages are settable.** A picker at group creation — off, 1 hour, 1 day, 1 week — and a read-only line on the group info screen so a member who cannot change the setting still knows their messages are on a clock. Fixed values rather than a free-form duration: the number is committed into group state every member's client reads, and an arbitrary one buys nothing. Creation is the only place it can be chosen, because promoting a component to required after epoch 0 takes two commits and that screen makes one. Until now we obeyed a setting neither Amethyst nor `amy` could set. **The harness tests the engine users run.** It cloned mdk master and got whatever was tip; both shipping White Noise clients embed an immutable MarmotKit artifact and name its `mdk-sha` in a lockfile. It now checks out that commit, and rebuilds `wn` when the checkout moves — a pinned tree beside a binary built from a different commit would report a version it did not test. **A scenario-vector runner.** Their manifest marks 31 artifacts `portable`, meaning written for one engine and meant to be replayed by another. Three are byte fixtures we already consume; the rest are scripts. `MarmotScenarioRunner` replays them against our own stack — publishing captured into a queue, `deliver_all` moving it into inboxes, `tick` draining them — and checks the expected trace. Six pass. This is a different claim from the interop harness: that proves we can TALK to `wn` over a relay, this proves the same events land us in the same group state. It refuses an unimplemented step by name rather than skipping it, because a runner that ignored steps would report a pass for a script it never executed. That refusal immediately found something. Three vectors create a group with several invitees, and the reference adds them all in ONE commit — epoch 1. `MarmotManager.addMember` stages one Add per commit, so we reach epoch N. Both are valid MLS and any peer processes either, but our traces cannot match, and creating a group costs an extra round trip per invitee. Asserted as a named divergence so it stays visible and fails the day batched adds land. **Two smaller things.** `DispatchStageBenchmark` is opt-in behind `-DrunLoadBenchmark=true`: it pushed 30k events through six variants twice inside a `runTest` whose cutoff is one minute, so on a loaded runner it failed having measured the machine rather than the code. And encrypted-media-v1 (`0x8008`) is closed as not-needed — required only on the Legacy profile, which strict cutover now forbids joining, so no group that asks for it is reachable. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/model/AccountMarmotActions.kt | 8 + .../ui/screen/loggedIn/AccountViewModel.kt | 6 +- .../chats/marmotGroup/CreateGroupScreen.kt | 19 +- .../marmotGroup/MarmotGroupInfoScreen.kt | 31 ++ .../marmotGroup/MarmotRetentionPicker.kt | 111 ++++++ cli/tests/marmot/setup.sh | 47 ++- .../composeResources/values/strings.xml | 7 + .../marmot/scenario/MarmotScenarioRunner.kt | 279 ++++++++++++++ .../scenario/MarmotScenarioVectorTest.kt | 118 ++++++ .../commons/marmot/scenario/ScenarioVector.kt | 132 +++++++ .../resources/marmot/vectors/README.md | 31 ++ .../convergence-committer-selected.v1.json | 123 ++++++ .../marmot/vectors/conversation.v1.json | 175 +++++++++ .../current-profile-required-set.v1.json | 94 +++++ .../marmot/vectors/invite-member.v1.json | 122 ++++++ .../vectors/invite-publish-fail.v1.json | 92 +++++ .../vectors/latecomer-forward-secrecy.v1.json | 271 +++++++++++++ .../vectors/multigroup-isolation.v1.json | 357 ++++++++++++++++++ .../marmot/vectors/publish-fail.v1.json | 66 ++++ .../three-client-message-exchange.v1.json | 145 +++++++ .../marmot/appComponents/AppComponentIds.kt | 15 +- .../marmot/mip05PushNotifications/README.md | 40 +- .../relay/prodbench/DispatchStageBenchmark.kt | 18 + 23 files changed, 2294 insertions(+), 13 deletions(-) create mode 100644 amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotRetentionPicker.kt create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt create mode 100644 commons/src/jvmTest/resources/marmot/vectors/README.md create mode 100644 commons/src/jvmTest/resources/marmot/vectors/convergence-committer-selected.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/conversation.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/current-profile-required-set.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/invite-member.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/invite-publish-fail.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/latecomer-forward-secrecy.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/multigroup-isolation.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/publish-fail.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/three-client-message-exchange.v1.json diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt index a00ff37947..2b93a44319 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt @@ -21,6 +21,7 @@ package com.vitorpamplona.amethyst.model import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 +import com.vitorpamplona.quartz.marmot.appComponents.MessageRetentionV1 import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageEvent import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageFetcher import com.vitorpamplona.quartz.nip01Core.core.Event @@ -404,6 +405,12 @@ class AccountMarmotActions( nostrGroupId: HexKey, name: String = "", description: String = "", + /** + * Disappearing messages (`0x8005`), or null for off. Fixed at creation: + * promoting a component to required later needs its state installed by + * a prior commit, which this path does not make. + */ + disappearingMessageSecs: ULong? = null, ) { val manager = account.marmotManager ?: return if (!account.isWriteable()) return @@ -413,6 +420,7 @@ class AccountMarmotActions( account.outboxRelays.flow.value .map { it.url }, profile = if (name.isEmpty() && description.isEmpty()) null else GroupProfileV1(name, description), + retention = disappearingMessageSecs?.let { MessageRetentionV1(it) }, ) // Creator owns the group — mark it as "known" immediately so it // doesn't appear under "New Requests" before the first message. diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt index 2ec9c44691..32eb0d23a4 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt @@ -2481,10 +2481,14 @@ class AccountViewModel( nostrGroupId: String, name: String = "", description: String = "", + disappearingMessageSecs: ULong? = null, ) { - account.marmot.createMarmotGroup(nostrGroupId, name, description) + account.marmot.createMarmotGroup(nostrGroupId, name, description, disappearingMessageSecs) } + /** This group's disappearing-message duration in seconds; 0 is off. */ + fun marmotRetentionSeconds(nostrGroupId: String): Long = account.marmotManager?.retentionSeconds(nostrGroupId) ?: 0L + suspend fun publishMarmotKeyPackage() { account.marmot.publishMarmotKeyPackage() } diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/CreateGroupScreen.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/CreateGroupScreen.kt index ebf7997f4d..82023f025f 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/CreateGroupScreen.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/CreateGroupScreen.kt @@ -73,6 +73,10 @@ fun CreateGroupScreen( var groupName by remember { mutableStateOf("") } var groupDescription by remember { mutableStateOf("") } var pickedIcon by remember { mutableStateOf(null) } + // Disappearing messages (`0x8005`). Chosen here and only here: promoting a + // component to required later needs its state installed by a prior commit, + // which this screen does not make. + var disappearing by remember { mutableStateOf(MarmotRetentionChoice.OFF) } // Stable seed for the placeholder avatar shown before an icon is picked. The real // group id is generated per creation attempt (so retries don't collide), so this is // a separate cosmetic seed rather than "". @@ -87,7 +91,12 @@ fun CreateGroupScreen( scope.launch(Dispatchers.IO) { try { val nostrGroupId = RandomInstance.bytes(32).toHexKey() - accountViewModel.createMarmotGroup(nostrGroupId, groupName.trim(), groupDescription.trim()) + accountViewModel.createMarmotGroup( + nostrGroupId, + groupName.trim(), + groupDescription.trim(), + disappearing.seconds, + ) // Encrypt + upload the picked icon (if any) before the metadata commit, // so its parameters land in the group's MarmotGroupData extension. val iconChange = @@ -189,6 +198,14 @@ fun CreateGroupScreen( enabled = !isCreating, ) + Spacer(modifier = Modifier.height(16.dp)) + + MarmotRetentionPicker( + selected = disappearing, + onSelect = { disappearing = it }, + enabled = !isCreating, + ) + Text( stringRes(Res.string.marmot_create_group_footer), modifier = Modifier.padding(top = 12.dp), diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt index 5687fef4ed..40dfcb0bcf 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt @@ -92,6 +92,7 @@ import com.vitorpamplona.amethyst.commons.resources.marmot_relay_no_events import com.vitorpamplona.amethyst.commons.resources.marmot_relays_header import com.vitorpamplona.amethyst.commons.resources.marmot_remove_member import com.vitorpamplona.amethyst.commons.resources.marmot_remove_member_confirm +import com.vitorpamplona.amethyst.commons.resources.marmot_retention_active import com.vitorpamplona.amethyst.commons.resources.marmot_revoke import com.vitorpamplona.amethyst.commons.resources.marmot_revoke_admin_confirm import com.vitorpamplona.amethyst.commons.resources.marmot_revoke_admin_privileges @@ -233,6 +234,19 @@ fun MarmotGroupInfoScreen( color = MaterialTheme.colorScheme.onSurfaceVariant, modifier = Modifier.padding(top = 4.dp), ) + // Disappearing messages, when the group has them. Shown + // rather than editable: the setting is fixed at epoch 0, + // and a member who cannot change it still needs to know + // their messages are on a clock. + val retention = remember(nostrGroupId) { accountViewModel.marmotRetentionSeconds(nostrGroupId) } + if (retention > 0L) { + Text( + text = stringRes(Res.string.marmot_retention_active, formatRetention(retention)), + style = MaterialTheme.typography.bodyMedium, + color = MaterialTheme.colorScheme.onSurfaceVariant, + modifier = Modifier.padding(top = 4.dp), + ) + } } if (groupRelays.isNotEmpty()) { GroupRelayStrip( @@ -927,3 +941,20 @@ private fun RelayHealthRow( } } } + +/** + * A retention duration as a reader sees it. + * + * Deliberately coarse — the exact second is committed group state, but what a + * member needs from this line is "how long roughly", and rounding down keeps a + * 90-minute setting from reading as "1 hour" only after it has already been + * displayed as "2 hours" somewhere else. + */ +private fun formatRetention(seconds: Long): String = + when { + seconds % 604_800L == 0L -> "${seconds / 604_800L}w" + seconds % 86_400L == 0L -> "${seconds / 86_400L}d" + seconds % 3_600L == 0L -> "${seconds / 3_600L}h" + seconds % 60L == 0L -> "${seconds / 60L}m" + else -> "${seconds}s" + } diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotRetentionPicker.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotRetentionPicker.kt new file mode 100644 index 0000000000..99772c869c --- /dev/null +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotRetentionPicker.kt @@ -0,0 +1,111 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup + +import androidx.compose.foundation.layout.Column +import androidx.compose.foundation.layout.Row +import androidx.compose.foundation.layout.padding +import androidx.compose.foundation.selection.selectable +import androidx.compose.material3.MaterialTheme +import androidx.compose.material3.RadioButton +import androidx.compose.material3.Text +import androidx.compose.runtime.Composable +import androidx.compose.ui.Alignment +import androidx.compose.ui.Modifier +import androidx.compose.ui.unit.dp +import com.vitorpamplona.amethyst.commons.resources.Res +import com.vitorpamplona.amethyst.commons.resources.marmot_retention_1d +import com.vitorpamplona.amethyst.commons.resources.marmot_retention_1h +import com.vitorpamplona.amethyst.commons.resources.marmot_retention_1w +import com.vitorpamplona.amethyst.commons.resources.marmot_retention_footer +import com.vitorpamplona.amethyst.commons.resources.marmot_retention_off +import com.vitorpamplona.amethyst.commons.resources.marmot_retention_title +import com.vitorpamplona.amethyst.ui.stringRes + +/** + * How long messages live in a new group — component `0x8005`, + * `marmot.group.message-retention.v1`. + * + * A fixed set rather than a free-form duration, because the value is committed + * into group state that every member's client reads: an arbitrary number buys + * nothing and gives a reader one more shape to render. + */ +enum class MarmotRetentionChoice( + val seconds: ULong?, +) { + OFF(null), + ONE_HOUR(3_600uL), + ONE_DAY(86_400uL), + ONE_WEEK(604_800uL), +} + +/** + * The picker, shown only at group creation. + * + * Retention is chosen once and not changed later, and that is a limitation + * rather than a policy: making a component required after epoch 0 takes two + * commits — install the state, then promote it — and this screen makes one. + */ +@Composable +fun MarmotRetentionPicker( + selected: MarmotRetentionChoice, + onSelect: (MarmotRetentionChoice) -> Unit, + enabled: Boolean, +) { + Column { + Text( + stringRes(Res.string.marmot_retention_title), + style = MaterialTheme.typography.titleSmall, + ) + MarmotRetentionChoice.entries.forEach { choice -> + Row( + verticalAlignment = Alignment.CenterVertically, + modifier = + Modifier + .selectable( + selected = choice == selected, + enabled = enabled, + onClick = { onSelect(choice) }, + ).padding(vertical = 2.dp), + ) { + RadioButton( + selected = choice == selected, + onClick = { onSelect(choice) }, + enabled = enabled, + ) + Text(stringRes(choice.label())) + } + } + Text( + stringRes(Res.string.marmot_retention_footer), + style = MaterialTheme.typography.bodySmall, + color = MaterialTheme.colorScheme.onSurfaceVariant, + ) + } +} + +private fun MarmotRetentionChoice.label() = + when (this) { + MarmotRetentionChoice.OFF -> Res.string.marmot_retention_off + MarmotRetentionChoice.ONE_HOUR -> Res.string.marmot_retention_1h + MarmotRetentionChoice.ONE_DAY -> Res.string.marmot_retention_1d + MarmotRetentionChoice.ONE_WEEK -> Res.string.marmot_retention_1w + } diff --git a/cli/tests/marmot/setup.sh b/cli/tests/marmot/setup.sh index c5ebb35b36..cbcc9e09ea 100644 --- a/cli/tests/marmot/setup.sh +++ b/cli/tests/marmot/setup.sh @@ -55,10 +55,35 @@ preflight() { fail_msg "mdk checkout missing at $WN_REPO and --no-build set"; exit 1 fi step "cloning mdk into $WN_REPO" - git clone --depth 1 https://github.com/marmot-protocol/mdk.git "$WN_REPO" \ + git clone --filter=blob:none https://github.com/marmot-protocol/mdk.git "$WN_REPO" \ 2>&1 | tee -a "$LOG_FILE" fi + # Pin to the commit the SHIPPING apps embed, not whatever master is today. + # Both White Noise clients vendor an immutable MarmotKit artifact and name + # its `mdk-sha` in a lockfile — whitenoise-android's + # `app/src/main/marmotkit/MARMOT_VERSION` and whitenoise-ios's + # `Packages/MarmotKit/MARMOT_VERSION` currently agree on this one. Testing + # against master answers "are we compatible with tip"; testing against this + # answers "are we compatible with what users are running", which is the + # question the harness exists to answer. + # + # Bump it deliberately, by reading those lockfiles again — not by drifting. + MDK_PIN="${MDK_PIN:-2f44f6b65a19f8818644ccd7027618ba91450c33}" + if [[ "$(git -C "$WN_REPO" rev-parse HEAD 2>/dev/null)" != "$MDK_PIN" ]]; then + if [[ "$NO_BUILD" -eq 1 ]]; then + info "mdk is not at the pinned $MDK_PIN and --no-build set — testing whatever is checked out" + else + step "checking out the pinned mdk $MDK_PIN" + if ! git -C "$WN_REPO" cat-file -e "$MDK_PIN^{commit}" 2>/dev/null; then + git -C "$WN_REPO" fetch --filter=blob:none origin "$MDK_PIN" 2>&1 | tee -a "$LOG_FILE" + fi + git -C "$WN_REPO" checkout --detach "$MDK_PIN" 2>&1 | tee -a "$LOG_FILE" || { + fail_msg "could not check out the pinned mdk $MDK_PIN"; exit 1 + } + fi + fi + # No source patches. The harness used to carry two against whitenoise-rs: # # 1. mock-keyring, so wnd could run where the kernel keyring is blocked. @@ -75,6 +100,23 @@ preflight() { # caches often enough that a single attempt fails ~30% of the time. # Retry each cargo build until the binary actually exists or we've # exhausted the budget — the build is incremental so retries are cheap. + # Rebuild when the checkout moved, not only when the binary is missing. + # A pinned checkout beside a binary built from a different commit is worse + # than no pin at all: the run would report a version it did not test. + local built_marker="$WN_REPO/target/release/.harness-built-sha" + local want_sha + want_sha=$(git -C "$WN_REPO" rev-parse HEAD 2>/dev/null || echo "") + local built_sha="" + [[ -f "$built_marker" ]] && built_sha=$(cat "$built_marker" 2>/dev/null || echo "") + if [[ -x "$WN_BIN" && -x "$WND_BIN" && -n "$want_sha" && "$built_sha" != "$want_sha" ]]; then + if [[ "$NO_BUILD" -eq 1 ]]; then + info "wn was built from ${built_sha:-an unrecorded commit}, not $want_sha — --no-build keeps it" + else + step "mdk moved to $want_sha — rebuilding wn + wnd" + rm -f "$WN_BIN" "$WND_BIN" + fi + fi + if [[ ! -x "$WN_BIN" || ! -x "$WND_BIN" ]]; then if [[ "$NO_BUILD" -eq 1 ]]; then fail_msg "wn/wnd not found and --no-build set"; exit 1 @@ -91,8 +133,9 @@ preflight() { [[ -x "$WN_BIN" && -x "$WND_BIN" ]] || { fail_msg "wn/wnd still missing after $max build attempts"; exit 1 } + [[ -n "$want_sha" ]] && printf '%s\n' "$want_sha" >"$built_marker" fi - info "wn: $WN_BIN" + info "wn: $WN_BIN ($(git -C "$WN_REPO" rev-parse --short HEAD 2>/dev/null || echo unknown))" info "wnd: $WND_BIN" # Clone/build nostr-rs-relay — the harness's single loopback relay. diff --git a/commons/src/commonMain/composeResources/values/strings.xml b/commons/src/commonMain/composeResources/values/strings.xml index ab2fee6cfd..57ed45e69d 100644 --- a/commons/src/commonMain/composeResources/values/strings.xml +++ b/commons/src/commonMain/composeResources/values/strings.xml @@ -2631,6 +2631,13 @@ Create Group Create Marmot Group A new MLS group will be created. You can add members after. + Disappearing messages + Off + 1 hour + 1 day + 1 week + Messages disappear after %1$s + Messages are deleted from every member\'s device after this long. It cannot be changed later. Marmot Group Group %1$s… %1$s… diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt new file mode 100644 index 0000000000..3285ea89e0 --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt @@ -0,0 +1,279 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot.scenario + +import com.vitorpamplona.amethyst.commons.marmot.MarmotIngestResult +import com.vitorpamplona.amethyst.commons.marmot.MarmotManager +import com.vitorpamplona.amethyst.commons.marmot.MarmotPublisher +import com.vitorpamplona.amethyst.commons.marmot.SnapshotBundleStore +import com.vitorpamplona.amethyst.commons.marmot.SnapshotMessageStore +import com.vitorpamplona.amethyst.commons.marmot.SnapshotStateStore +import com.vitorpamplona.amethyst.commons.marmot.ingest +import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 +import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import com.vitorpamplona.quartz.utils.RandomInstance + +/** + * Replays a CGKA conformance scenario vector against our own MLS stack. + * + * The vectors are the reference implementation's, marked `portable` in its + * manifest, and that word is the whole point: a script written for one engine + * and replayed by another. Our interop harness proves we can talk to `wn` over + * a relay; this proves we reach the same GROUP STATE from the same sequence of + * events, which is a different claim and the one MLS conformance is actually + * about. + * + * ## What is simulated, and what is not + * + * There is no relay and no gift-wrap round trip here — the harness covers that. + * Publishing is captured into a queue, `deliver_all` moves the queue into every + * other client's inbox, and `tick` drains an inbox. That mirrors the vector's + * own model, where delivery and processing are separate steps precisely so a + * script can hold a message back. + * + * ## Refusing rather than skipping + * + * A step type the runner does not implement throws [UnsupportedScenarioStep]. + * Nineteen of the portable vectors need fault injection or group-data steps we + * have not modelled, and a runner that quietly ignored those steps would report + * a pass for a script it did not execute — worse than no coverage, because it + * would look like coverage. + */ +class MarmotScenarioRunner( + private val vector: ScenarioVector, +) { + private val clients = vector.clients.associateWith { VectorClient(it) } + + /** Queued outbound events: (sender, event). Drained by `deliver_all`. */ + private val inFlight = mutableListOf>() + + private class VectorClient( + val name: String, + ) { + val signer = NostrSignerInternal(KeyPair()) + val mlsStore = SnapshotStateStore() + val messageStore = SnapshotMessageStore() + lateinit var manager: MarmotManager + + /** Delivered but not yet processed — `tick` is what processes. */ + val inbox = mutableListOf() + val received = mutableListOf() + var groupId: HexKey? = null + } + + /** + * Whether the next publication by this client should be accepted. + * + * The vector acknowledges a publication in a step AFTER the one that + * created it, but our `commitAndPublish` decides synchronously — publish + * before apply means the relay's answer is what makes the commit canonical. + * So the outcome is read ahead out of the matching `acknowledge_outbound` + * step. It is the same information in the same order, just consulted when + * this implementation needs it. + */ + private val publishOutcomes = mutableMapOf>() + + private fun preScanPublishOutcomes() { + vector.steps.filter { it.type == "acknowledge_outbound" }.forEach { step -> + val client = step.string("client") ?: return@forEach + val accepted = step.string("outcome") == "accepted" + publishOutcomes.getOrPut(client) { mutableListOf() }.add(accepted) + } + } + + private fun nextOutcome(client: String): Boolean { + val queue = publishOutcomes[client] ?: return true + return if (queue.isEmpty()) true else queue.removeAt(0) + } + + suspend fun run() { + preScanPublishOutcomes() + clients.values.forEach { client -> + client.manager = + MarmotManager( + client.signer, + client.mlsStore, + client.messageStore, + SnapshotBundleStore(), + publisher = + MarmotPublisher { event, _ -> + val accepted = nextOutcome(client.name) + if (accepted) inFlight.add(client.name to event) + accepted + }, + ) + } + + vector.steps.forEach { step -> execute(step) } + verify() + } + + private suspend fun execute(step: ScenarioVector.Step) { + when (step.type) { + "create_group" -> createGroup(step) + "invite_members" -> inviteMembers(step) + "send_app_message" -> sendAppMessage(step) + "deliver_all" -> deliverAll() + "tick" -> step.strings("clients").ifEmpty { vector.clients }.forEach { tick(it) } + // The publication's outcome was consumed when it was made; the step + // itself carries no further state change. + "acknowledge_outbound" -> Unit + // Assertions the trace re-states; `verify()` checks them from the + // expected observations, which is the same information. + "observe", "observe_exact", "in_group", "assert", "clear_events", "await_quiescence" -> Unit + else -> throw UnsupportedScenarioStep(step.type) + } + } + + private suspend fun createGroup(step: ScenarioVector.Step) { + val creator = client(step.string("creator") ?: error("create_group without a creator")) + val name = step.string("name").orEmpty() + val groupId = RandomInstance.bytes(32).toHexKey() + val invitees = step.strings("invitees") + + if (invitees.size > 1) { + throw ScenarioBatchingDivergence( + "create_group names ${invitees.size} invitees and the reference adds them in one " + + "commit (epoch 1); MarmotManager.addMember stages one Add per commit, so we " + + "would reach epoch ${invitees.size}. Both are valid MLS; the traces cannot match " + + "until we can commit several Adds together.", + ) + } + + creator.manager.createCurrentProfileGroup( + nostrGroupId = groupId, + relays = listOf("wss://vector.invalid"), + profile = if (name.isEmpty()) null else GroupProfileV1(name, ""), + additionalAdmins = + step.strings("initial_admins").map { admin -> + client(admin).signer.pubKey.hexToByteArray() + }, + ) + creator.groupId = groupId + addMembers(creator, groupId, invitees) + } + + private suspend fun inviteMembers(step: ScenarioVector.Step) { + val inviter = client(step.string("inviter") ?: error("invite_members without an inviter")) + val groupId = inviter.groupId ?: error("${inviter.name} invited before joining a group") + addMembers(inviter, groupId, step.strings("invitees")) + } + + private suspend fun addMembers( + inviter: VectorClient, + groupId: HexKey, + invitees: List, + ) { + invitees.forEach { inviteeName -> + val invitee = client(inviteeName) + // A KeyPackage per invitee, minted on demand: the vector names + // members, not key material. + val bundle = invitee.manager.generateKeyPackageEvent(relays = emptyList()) + val (_, delivery) = + inviter.manager.addMember( + nostrGroupId = groupId, + keyPackageEvent = bundle, + relays = emptyList(), + ) + // The Welcome goes straight to its recipient's inbox. Gift-wrap + // addressing is the transport's job and the interop harness's test. + delivery?.let { invitee.inbox.add(it.giftWrapEvent) } + invitee.groupId = groupId + } + } + + private suspend fun sendAppMessage(step: ScenarioVector.Step) { + val sender = client(step.string("sender") ?: error("send_app_message without a sender")) + val groupId = sender.groupId ?: error("${sender.name} sent before joining a group") + val payload = step.string("payload").orEmpty() + sender.manager.buildTextMessage(groupId, payload, persistOwn = false) + } + + private fun deliverAll() { + val batch = inFlight.toList() + inFlight.clear() + batch.forEach { (senderName, event) -> + clients.values.filter { it.name != senderName }.forEach { it.inbox.add(event) } + } + } + + private suspend fun tick(clientName: String) { + val client = client(clientName) + val batch = client.inbox.toList() + client.inbox.clear() + batch.forEach { event -> + when (val result = client.manager.ingest(event)) { + is MarmotIngestResult.JoinedGroup -> client.groupId = result.nostrGroupId + is MarmotIngestResult.Message -> + Event + .fromJsonOrNull(result.inner.innerEventJson) + ?.takeIf { it.kind == CHAT_KIND } + ?.let { client.received.add(it.content) } + + else -> Unit + } + } + } + + /** Compare every client's end state against the vector's expected trace. */ + private fun verify() { + val failures = mutableListOf() + vector.observations.forEach { expected -> + val client = clients[expected.client] ?: return@forEach + val groupId = client.groupId + if (groupId == null) { + failures.add("${expected.client} is in no group") + return@forEach + } + expected.epoch?.let { want -> + val got = client.manager.groupEpoch(groupId) + if (got != want) failures.add("${expected.client} epoch $got, expected $want") + } + expected.memberCount?.let { want -> + val got = client.manager.memberCount(groupId) + if (got != want) failures.add("${expected.client} has $got members, expected $want") + } + expected.groupName?.let { want -> + val got = client.manager.groupView(groupId)?.name + if (got != want) failures.add("${expected.client} group name '$got', expected '$want'") + } + if (expected.receivedPayloads.isNotEmpty()) { + val got = client.received.sorted() + val want = expected.receivedPayloads.sorted() + if (got != want) failures.add("${expected.client} received $got, expected $want") + } + } + check(failures.isEmpty()) { + "vector ${vector.name} diverged from its expected trace:\n " + failures.joinToString("\n ") + } + } + + private fun client(name: String) = clients[name] ?: error("vector names a client '$name' that its roster does not list") + + private companion object { + const val CHAT_KIND = 9 + } +} diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt new file mode 100644 index 0000000000..f1cc1f7cbb --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt @@ -0,0 +1,118 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot.scenario + +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertFailsWith +import kotlin.test.assertTrue +import kotlin.test.fail + +/** + * Replays the reference implementation's own conformance scenarios. + * + * These vectors are marked `portable` in their manifest — written for one + * engine and meant to be replayed by another. That is a different claim from + * what the interop harness tests: the harness proves we can TALK to `wn` over a + * relay, and these prove that the same sequence of events lands us in the same + * group state. + * + * Only the vectors whose steps the runner implements are here. The rest need + * fault injection (withhold/release, partition, duplicate, reorder, restart) or + * group-data and admin-policy steps; `MarmotScenarioRunner` throws + * [UnsupportedScenarioStep] rather than ignoring an unknown step, so widening + * the set means implementing a step, never loosening a check. + */ +class MarmotScenarioVectorTest { + private fun load(name: String): ScenarioVector { + val stream = + javaClass.classLoader?.getResourceAsStream("marmot/vectors/$name") + ?: fail("vector $name is missing from test resources") + return ScenarioVector.parse(stream.bufferedReader().use { it.readText() }) + } + + private fun replay(name: String) = + runBlocking { + val vector = load(name) + MarmotScenarioRunner(vector).run() + } + + @Test + fun inviteMember() = replay("invite-member.v1.json") + + @Test + fun currentProfileRequiredSet() = replay("current-profile-required-set.v1.json") + + @Test + fun latecomerForwardSecrecy() = replay("latecomer-forward-secrecy.v1.json") + + @Test + fun multigroupIsolation() = replay("multigroup-isolation.v1.json") + + @Test + fun publishFail() = replay("publish-fail.v1.json") + + @Test + fun invitePublishFail() = replay("invite-publish-fail.v1.json") + + /** + * The two vectors we cannot replay, and exactly why. + * + * Both create a group with several invitees. The reference adds them in one + * commit, so the group is at epoch 1; our `addMember` stages one Add per + * commit, so we would reach epoch 2. Neither is a protocol error — a commit + * per Add is valid MLS and any peer processes it — but the traces cannot + * match until we can commit several Adds together, and creating a group + * costs us an extra round trip per invitee until then. + * + * Asserted rather than deleted so the divergence stays visible: the day + * batched adds land, this test fails and these two move up to [replay]. + */ + @Test + fun aMultiInviteeCreateStillDivergesOnBatching() { + listOf( + "three-client-message-exchange.v1.json", + "convergence-committer-selected.v1.json", + "conversation.v1.json", + ).forEach { name -> + val thrown = + assertFailsWith("$name should still diverge on batching") { + runBlocking { MarmotScenarioRunner(load(name)).run() } + } + assertTrue( + thrown.message.orEmpty().contains("one commit"), + "the divergence must say what it is: ${thrown.message}", + ) + } + } + + @Test + fun theVectorsAreTheOnesTheShippingAppsEmbed() { + // A vector refreshed from tip would test us against an engine nobody + // runs. The copies here come from the commit both White Noise clients + // pin, and their own `conformance_version` is what says so. + val vector = load("three-client-message-exchange.v1.json") + assertTrue( + vector.conformanceVersion.startsWith("0.9."), + "unexpected conformance version ${vector.conformanceVersion}", + ) + } +} diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt new file mode 100644 index 0000000000..91b6c65595 --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt @@ -0,0 +1,132 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot.scenario + +import kotlinx.serialization.json.Json +import kotlinx.serialization.json.JsonArray +import kotlinx.serialization.json.JsonObject +import kotlinx.serialization.json.JsonPrimitive +import kotlinx.serialization.json.jsonPrimitive + +/** + * One CGKA conformance scenario vector, as the reference implementation writes + * them (`crates/cgka-conformance-simulator/vectors/`). + * + * A vector is a script, not a byte fixture: a client roster, an ordered list of + * steps, and the trace an implementation is expected to produce. Their manifest + * marks these `portable`, which is exactly the claim being tested — that a + * second implementation replaying the same script reaches the same state. + * + * Parsed loosely on purpose. The step vocabulary is open (28 types across the + * full set) and only some are implemented; a strict model would fail to LOAD a + * vector the runner is entitled to refuse for a much clearer reason. + */ +class ScenarioVector( + val name: String, + val conformanceVersion: String, + val clients: List, + val steps: List, + val observations: List, +) { + class Step( + val type: String, + private val raw: JsonObject, + ) { + fun string(key: String): String? = (raw[key] as? JsonPrimitive)?.takeIf { it.isString }?.content + + fun strings(key: String): List = + (raw[key] as? JsonArray) + ?.mapNotNull { (it as? JsonPrimitive)?.takeIf { p -> p.isString }?.content } + .orEmpty() + } + + /** What one client's state must look like when the script says to look. */ + class Observation( + val client: String, + val epoch: Long?, + val memberCount: Int?, + val groupName: String?, + val receivedPayloads: List, + ) + + companion object { + private val parser = Json { ignoreUnknownKeys = true } + + fun parse(json: String): ScenarioVector { + val root = parser.parseToJsonElement(json) as JsonObject + val scenario = root["scenario"] as JsonObject + val steps = + (scenario["steps"] as JsonArray).map { element -> + val obj = element as JsonObject + Step(obj.getValue("type").jsonPrimitive.content, obj) + } + val observations = + ((root["expected_trace"] as? JsonObject)?.get("observations") as? JsonArray) + ?.map { element -> + val obj = element as JsonObject + Observation( + client = obj.getValue("client").jsonPrimitive.content, + epoch = (obj["epoch"] as? JsonPrimitive)?.content?.toLongOrNull(), + memberCount = (obj["member_count"] as? JsonPrimitive)?.content?.toIntOrNull(), + groupName = (obj["group_name"] as? JsonPrimitive)?.takeIf { it.isString }?.content, + receivedPayloads = + (obj["received_payloads"] as? JsonArray) + ?.mapNotNull { (it as? JsonPrimitive)?.content } + .orEmpty(), + ) + }.orEmpty() + return ScenarioVector( + name = (root["scenario_name"] as JsonPrimitive).content, + conformanceVersion = (root["conformance_version"] as? JsonPrimitive)?.content.orEmpty(), + clients = (scenario["clients"] as JsonArray).map { (it as JsonPrimitive).content }, + steps = steps, + observations = observations, + ) + } + } +} + +/** Raised when a vector uses a step this runner has not implemented. */ +class UnsupportedScenarioStep( + val stepType: String, +) : IllegalStateException( + "scenario step '$stepType' is not implemented — the runner refuses a vector it cannot " + + "faithfully replay rather than reporting a pass it did not earn", + ) + +/** + * Raised where our engine cannot reach the vector's trace because it batches + * differently, not because either side is wrong. + * + * The one case today: the reference adds every invitee named by `create_group` + * in a SINGLE commit, so a group created with two invitees is at epoch 1. Our + * `MarmotManager.addMember` stages one Add per commit, so the same group + * reaches epoch 2. Both are valid MLS — a commit per Add is not a protocol + * error, and a peer processes either — but the epoch numbers differ, and so + * does the round-trip cost of creating a group. + * + * Kept as its own signal rather than folded into a trace mismatch: a divergence + * we understand and have chosen not to fix yet should not read like a bug we + * have not noticed. + */ +class ScenarioBatchingDivergence( + message: String, +) : IllegalStateException(message) diff --git a/commons/src/jvmTest/resources/marmot/vectors/README.md b/commons/src/jvmTest/resources/marmot/vectors/README.md new file mode 100644 index 0000000000..085b92f273 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/README.md @@ -0,0 +1,31 @@ +# CGKA scenario vectors + +Copied verbatim from the reference implementation: +`marmot-protocol/mdk`, `crates/cgka-conformance-simulator/vectors/`, at the +commit the shipping White Noise apps embed +(`2f44f6b65a19f8818644ccd7027618ba91450c33`, `marmotkit-v0.9.20`). + +Their `manifest.v1.json` marks 31 artifacts `portable` — meaning they are +meant to be replayed by an implementation that is not theirs. Three are byte +fixtures we already consume from `quartz/src/commonTest/resources/marmot/ +conformance/`. The rest are **scenario scripts**: a client roster, a step +list, and an expected trace. + +These nine are the subset whose steps `MarmotScenarioRunner` implements — +`create_group`, `invite_members`, `send_app_message`, `deliver_all`, `tick`, +`acknowledge_outbound`, `observe`, `in_group`, `assert`, `clear_events`. The +other nineteen need fault injection (withhold/release, partition, duplicate, +reorder, restart) or group-data and admin-policy steps; the runner refuses +them by name rather than skipping quietly, so adding a step type is what +widens the set. + +## Refreshing + +```bash +cp /crates/cgka-conformance-simulator/vectors/.v1.json . +``` + +Refresh from the commit named in whitenoise-android's +`app/src/main/marmotkit/MARMOT_VERSION` (or whitenoise-ios's +`Packages/MarmotKit/MARMOT_VERSION`) — that is the engine users are running, +which is the thing worth being conformant with. diff --git a/commons/src/jvmTest/resources/marmot/vectors/convergence-committer-selected.v1.json b/commons/src/jvmTest/resources/marmot/vectors/convergence-committer-selected.v1.json new file mode 100644 index 0000000000..81a8b3b721 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/convergence-committer-selected.v1.json @@ -0,0 +1,123 @@ +{ + "scenario_name": "convergence-committer-selected/v1", + "vector_version": "1", + "conformance_version": "0.9.20", + "seed": null, + "scenario": { + "name": "convergence-committer-selected/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol", + "david", + "eve" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "convergence", + "invitees": [ + "bob", + "carol" + ], + "required_features": [], + "initial_admins": [ + "bob" + ], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "invite_members", + "inviter": "alice", + "invitees": [ + "david" + ], + "pending": "alice-invite" + }, + { + "type": "invite_members", + "inviter": "bob", + "invitees": [ + "eve" + ], + "pending": "bob-invite" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "alice-invite", + "outcome": "accepted" + }, + { + "type": "acknowledge_outbound", + "client": "bob", + "publication": "bob-invite", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "carol" + ] + }, + { + "type": "observe", + "clients": [ + "carol" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "convergence_decision", + "client": "carol", + "selected_tip_epoch": 2, + "decisive_rule": "tip_committer", + "witness_quorum_met": false + }, + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "carol", + "epoch": 2, + "member_count": 4, + "received_payloads": [] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/conversation.v1.json b/commons/src/jvmTest/resources/marmot/vectors/conversation.v1.json new file mode 100644 index 0000000000..0011041656 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/conversation.v1.json @@ -0,0 +1,175 @@ +{ + "scenario_name": "conversation/v1", + "vector_version": "1", + "conformance_version": "0.9.20", + "seed": null, + "scenario": { + "name": "conversation/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "conversation", + "invitees": [ + "bob", + "carol" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "conversation:r1:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "conversation:r1:bob" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "conversation:r1:carol" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "conversation:r2:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "conversation:r2:bob" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "conversation:r2:carol" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "observe_exact", + "clients": [ + "alice", + "bob", + "carol" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "alice", + "epoch": 1, + "member_count": 3, + "received_payloads": [ + "conversation:r1:bob", + "conversation:r1:carol", + "conversation:r2:bob", + "conversation:r2:carol" + ] + }, + { + "type": "client_state", + "client": "bob", + "epoch": 1, + "member_count": 3, + "received_payloads": [ + "conversation:r1:alice", + "conversation:r1:carol", + "conversation:r2:alice", + "conversation:r2:carol" + ] + }, + { + "type": "client_state", + "client": "carol", + "epoch": 1, + "member_count": 3, + "received_payloads": [ + "conversation:r1:alice", + "conversation:r1:bob", + "conversation:r2:alice", + "conversation:r2:bob" + ] + }, + { + "type": "clients_converged", + "clients": [ + "alice", + "bob", + "carol" + ], + "epoch": 1, + "member_count": 3 + }, + { + "type": "no_pending_work", + "clients": [ + "alice", + "bob", + "carol" + ] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/current-profile-required-set.v1.json b/commons/src/jvmTest/resources/marmot/vectors/current-profile-required-set.v1.json new file mode 100644 index 0000000000..9110002390 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/current-profile-required-set.v1.json @@ -0,0 +1,94 @@ +{ + "scenario_name": "current-profile-required-set/v1", + "vector_version": "1", + "conformance_version": "0.9.20", + "seed": null, + "application_profile": { + "name": "current", + "required_group_context_extensions": [ + "0x0006" + ], + "required_proposals": [ + "0x0008" + ], + "required_app_components": [ + "0x8003", + "0x8009" + ], + "required_group_context_state_components": [ + "0x8003" + ], + "leaf_only_app_components": [ + "0x8009" + ] + }, + "scenario": { + "name": "current-profile-required-set/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "current-profile", + "invitees": [ + "bob" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob" + ] + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "bob:first-current-message" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob" + ] + }, + { + "type": "observe", + "clients": [ + "alice", + "bob" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "client_state", + "client": "alice", + "epoch": 1, + "member_count": 2, + "received_payloads": [ + "bob:first-current-message" + ] + }, + { + "type": "client_state", + "client": "bob", + "epoch": 1, + "member_count": 2, + "received_payloads": [] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/invite-member.v1.json b/commons/src/jvmTest/resources/marmot/vectors/invite-member.v1.json new file mode 100644 index 0000000000..fc52593082 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/invite-member.v1.json @@ -0,0 +1,122 @@ +{ + "scenario_name": "invite-member/v1", + "vector_version": "1", + "conformance_version": "0.9.20", + "seed": null, + "scenario": { + "name": "invite-member/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "invite-member", + "invitees": [ + "bob" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "invite_members", + "inviter": "alice", + "invitees": [ + "carol" + ], + "pending": "invite-carol" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "invite-carol", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol" + ] + }, + { + "type": "observe", + "clients": [ + "alice", + "bob", + "carol" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 6, + "client": "alice", + "pending": "invite-carol", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "alice", + "epoch": 2, + "member_count": 3, + "received_payloads": [] + }, + { + "type": "client_state", + "client": "bob", + "epoch": 2, + "member_count": 3, + "received_payloads": [], + "added_members": [ + "carol" + ] + }, + { + "type": "client_state", + "client": "carol", + "epoch": 2, + "member_count": 3, + "received_payloads": [] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/invite-publish-fail.v1.json b/commons/src/jvmTest/resources/marmot/vectors/invite-publish-fail.v1.json new file mode 100644 index 0000000000..769974f82f --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/invite-publish-fail.v1.json @@ -0,0 +1,92 @@ +{ + "scenario_name": "invite-publish-fail/v1", + "vector_version": "1", + "conformance_version": "0.9.20", + "seed": null, + "scenario": { + "name": "invite-publish-fail/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "invite-publish-fail", + "invitees": [ + "bob" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob" + ] + }, + { + "type": "invite_members", + "inviter": "alice", + "invitees": [ + "carol" + ], + "pending": "invite-carol" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "invite-carol", + "outcome": "reached_no_endpoint" + }, + { + "type": "observe", + "clients": [ + "alice" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 6, + "client": "alice", + "pending": "invite-carol", + "resolution": "rolled_back" + }, + { + "type": "client_state", + "client": "alice", + "epoch": 1, + "member_count": 2, + "received_payloads": [] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/latecomer-forward-secrecy.v1.json b/commons/src/jvmTest/resources/marmot/vectors/latecomer-forward-secrecy.v1.json new file mode 100644 index 0000000000..f93f9f6479 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/latecomer-forward-secrecy.v1.json @@ -0,0 +1,271 @@ +{ + "scenario_name": "latecomer-forward-secrecy/v1", + "vector_version": "1", + "conformance_version": "0.9.20", + "seed": null, + "scenario": { + "name": "latecomer-forward-secrecy/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "latecomer", + "invitees": [ + "bob" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "latecomer:pre:r1:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "latecomer:pre:r1:bob" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "latecomer:pre:r2:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "latecomer:pre:r2:bob" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob" + ] + }, + { + "type": "invite_members", + "inviter": "alice", + "invitees": [ + "carol" + ], + "pending": "invite-carol" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "invite-carol", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "latecomer:post:r1:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "latecomer:post:r1:bob" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "latecomer:post:r1:carol" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "latecomer:post:r2:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "latecomer:post:r2:bob" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "latecomer:post:r2:carol" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "carol", + "payload": "latecomer:pre:r1:alice", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "carol", + "payload": "latecomer:pre:r2:bob", + "count": 0 + } + } + }, + { + "type": "observe_exact", + "clients": [ + "alice", + "bob", + "carol" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 14, + "client": "alice", + "pending": "invite-carol", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "alice", + "epoch": 2, + "member_count": 3, + "received_payloads": [ + "latecomer:pre:r1:bob", + "latecomer:pre:r2:bob", + "latecomer:post:r1:bob", + "latecomer:post:r1:carol", + "latecomer:post:r2:bob", + "latecomer:post:r2:carol" + ] + }, + { + "type": "client_state", + "client": "bob", + "epoch": 2, + "member_count": 3, + "received_payloads": [ + "latecomer:pre:r1:alice", + "latecomer:pre:r2:alice", + "latecomer:post:r1:alice", + "latecomer:post:r1:carol", + "latecomer:post:r2:alice", + "latecomer:post:r2:carol" + ] + }, + { + "type": "client_state", + "client": "carol", + "epoch": 2, + "member_count": 3, + "received_payloads": [ + "latecomer:post:r1:alice", + "latecomer:post:r1:bob", + "latecomer:post:r2:alice", + "latecomer:post:r2:bob" + ] + }, + { + "type": "clients_converged", + "clients": [ + "alice", + "bob", + "carol" + ], + "epoch": 2, + "member_count": 3 + }, + { + "type": "no_pending_work", + "clients": [ + "alice", + "bob" + ] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/multigroup-isolation.v1.json b/commons/src/jvmTest/resources/marmot/vectors/multigroup-isolation.v1.json new file mode 100644 index 0000000000..cb8249c98b --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/multigroup-isolation.v1.json @@ -0,0 +1,357 @@ +{ + "scenario_name": "multigroup-isolation/v1", + "vector_version": "1", + "conformance_version": "0.9.20", + "seed": null, + "scenario": { + "name": "multigroup-isolation/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol" + ], + "steps": [ + { + "type": "in_group", + "group": "a", + "action": { + "type": "create_group", + "creator": "alice", + "name": "group-a", + "invitees": [ + "bob" + ], + "required_features": [], + "initial_admins": [ + "alice" + ], + "pending": "a-create" + } + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "a-create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob" + ] + }, + { + "type": "in_group", + "group": "b", + "action": { + "type": "create_group", + "creator": "alice", + "name": "group-b", + "invitees": [ + "carol" + ], + "required_features": [], + "initial_admins": [ + "alice" + ], + "pending": "b-create" + } + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "b-create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "carol" + ] + }, + { + "type": "in_group", + "group": "c", + "action": { + "type": "create_group", + "creator": "bob", + "name": "group-c", + "invitees": [ + "carol" + ], + "required_features": [], + "initial_admins": [ + "bob" + ], + "pending": "c-create" + } + }, + { + "type": "acknowledge_outbound", + "client": "bob", + "publication": "c-create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "carol" + ] + }, + { + "type": "in_group", + "group": "a", + "action": { + "type": "clear_events", + "clients": [ + "alice", + "bob" + ] + } + }, + { + "type": "in_group", + "group": "b", + "action": { + "type": "clear_events", + "clients": [ + "alice", + "carol" + ] + } + }, + { + "type": "in_group", + "group": "c", + "action": { + "type": "clear_events", + "clients": [ + "bob", + "carol" + ] + } + }, + { + "type": "in_group", + "group": "a", + "action": { + "type": "send_app_message", + "sender": "alice", + "payload": "multigroup:a:alice" + } + }, + { + "type": "in_group", + "group": "a", + "action": { + "type": "send_app_message", + "sender": "bob", + "payload": "multigroup:a:bob" + } + }, + { + "type": "in_group", + "group": "b", + "action": { + "type": "send_app_message", + "sender": "alice", + "payload": "multigroup:b:alice" + } + }, + { + "type": "in_group", + "group": "b", + "action": { + "type": "send_app_message", + "sender": "carol", + "payload": "multigroup:b:carol" + } + }, + { + "type": "in_group", + "group": "c", + "action": { + "type": "send_app_message", + "sender": "bob", + "payload": "multigroup:c:bob" + } + }, + { + "type": "in_group", + "group": "c", + "action": { + "type": "send_app_message", + "sender": "carol", + "payload": "multigroup:c:carol" + } + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "bob", + "payload": "multigroup:b:alice", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "bob", + "payload": "multigroup:b:carol", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "carol", + "payload": "multigroup:a:alice", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "carol", + "payload": "multigroup:a:bob", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "alice", + "payload": "multigroup:c:bob", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "alice", + "payload": "multigroup:c:carol", + "count": 0 + } + } + }, + { + "type": "in_group", + "group": "a", + "action": { + "type": "observe_exact", + "clients": [ + "alice", + "bob" + ] + } + }, + { + "type": "in_group", + "group": "b", + "action": { + "type": "observe_exact", + "clients": [ + "carol" + ] + } + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "a-create", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 5, + "client": "alice", + "pending": "b-create", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 9, + "client": "bob", + "pending": "c-create", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "alice", + "epoch": 1, + "member_count": 2, + "received_payloads": [ + "multigroup:a:bob", + "multigroup:b:carol" + ] + }, + { + "type": "client_state", + "client": "bob", + "epoch": 1, + "member_count": 2, + "received_payloads": [ + "multigroup:a:alice", + "multigroup:c:carol" + ] + }, + { + "type": "client_state", + "client": "carol", + "epoch": 1, + "member_count": 2, + "received_payloads": [ + "multigroup:b:alice", + "multigroup:c:bob" + ] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/publish-fail.v1.json b/commons/src/jvmTest/resources/marmot/vectors/publish-fail.v1.json new file mode 100644 index 0000000000..a77ab70dc1 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/publish-fail.v1.json @@ -0,0 +1,66 @@ +{ + "scenario_name": "publish-fail/v1", + "vector_version": "1", + "conformance_version": "0.9.20", + "seed": null, + "scenario": { + "name": "publish-fail/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "publish-fail", + "invitees": [ + "bob" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "reached_no_endpoint" + }, + { + "type": "observe", + "clients": [ + "alice" + ] + } + ] + }, + "expected_trace": { + "name": "publish-fail/v1", + "pending_resolutions": [ + { + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "rolled_back" + } + ], + "observations": [ + { + "client": "alice", + "epoch": 0, + "member_count": 1, + "group_name": "publish-fail", + "event_counts": { + "message_received": 0, + "member_added": 0, + "member_removed": 0, + "epoch_changed": 0, + "app_invalidated": 0 + }, + "received_payloads": [], + "removed_members": [] + } + ] + } +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/three-client-message-exchange.v1.json b/commons/src/jvmTest/resources/marmot/vectors/three-client-message-exchange.v1.json new file mode 100644 index 0000000000..aa43e72de2 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/three-client-message-exchange.v1.json @@ -0,0 +1,145 @@ +{ + "scenario_name": "three-client-message-exchange/v1", + "vector_version": "1", + "conformance_version": "0.9.20", + "seed": null, + "scenario": { + "name": "three-client-message-exchange/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "vector-smoke", + "invitees": [ + "bob", + "carol" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "alice:hello" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "bob:hello" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "carol:hello" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "observe", + "clients": [ + "alice", + "bob", + "carol" + ] + } + ] + }, + "expected_trace": { + "name": "three-client-message-exchange/v1", + "pending_resolutions": [ + { + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + } + ], + "observations": [ + { + "client": "alice", + "epoch": 1, + "member_count": 3, + "group_name": "vector-smoke", + "event_counts": { + "message_received": 2, + "member_added": 0, + "member_removed": 0, + "epoch_changed": 0, + "app_invalidated": 0 + }, + "received_payloads": [ + "bob:hello", + "carol:hello" + ], + "removed_members": [] + }, + { + "client": "bob", + "epoch": 1, + "member_count": 3, + "group_name": "vector-smoke", + "event_counts": { + "message_received": 2, + "member_added": 0, + "member_removed": 0, + "epoch_changed": 0, + "app_invalidated": 0 + }, + "received_payloads": [ + "alice:hello", + "carol:hello" + ], + "removed_members": [] + }, + { + "client": "carol", + "epoch": 1, + "member_count": 3, + "group_name": "vector-smoke", + "event_counts": { + "message_received": 2, + "member_added": 0, + "member_removed": 0, + "epoch_changed": 0, + "app_invalidated": 0 + }, + "received_payloads": [ + "alice:hello", + "bob:hello" + ], + "removed_members": [] + } + ] + } +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AppComponentIds.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AppComponentIds.kt index d785b4a8d9..5604b8f24b 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AppComponentIds.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AppComponentIds.kt @@ -76,7 +76,20 @@ object AppComponentIds { /** `marmot.group.avatar-url.v1` — the plain-https alternative to Blossom images. */ const val GROUP_AVATAR_URL_V1 = 0x8007 - /** `marmot.group.encrypted-media.v1` — frozen; new groups use [GROUP_ENCRYPTED_MEDIA_V2]. */ + /** + * `marmot.group.encrypted-media.v1` — frozen; new groups use + * [GROUP_ENCRYPTED_MEDIA_V2]. + * + * Deliberately NOT supported, and that is settled rather than pending. It + * is required only on the Legacy profile, and the reference engine now + * refuses to add a member to a legacy group at all ("strict cutover + * forbids adding members to legacy groups"). So the only groups that could + * ask us for it are ones we can never be invited into, and advertising + * support would be a standing promise with no reachable caller. + * + * A group that carries it MUST NOT have those bytes reinterpreted as v2 — + * they are different components with different shapes. + */ const val GROUP_ENCRYPTED_MEDIA_V1 = 0x8008 /** `marmot.member.account-identity-proof.v2` — leaf-only; see `AccountIdentityProofV2`. */ diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/README.md b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/README.md index 5cb2504ef1..43d7f1a6c6 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/README.md +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mip05PushNotifications/README.md @@ -95,12 +95,36 @@ Nothing here publishes a kind 446 either. Selecting records, sealing, wrapping and choosing publish targets belong to the Nostr binding; `buildTrigger` hands back the rumor and stops. -## Interop +## Interop, and why there is none -MDK implements the same adopted shape (`crates/marmot-app/src/notifications.rs`), -but its `wn` CLI exposes no push commands — `notifications` has only -`subscribe` — so there is no way to drive push through the interop harness the -way `amy`/`wn` drive messages, media and streams. Coverage is the spec's own -published removal fixture (event id and `owner_sig`, asserted in -`PushOwnerProofTest`), byte-layout assertions built independently of the encoder, -and the ordering and tombstone rules exercised in `PushRecordStoreTest`. +MDK implements the same adopted shape +(`crates/marmot-app/src/notifications.rs`, and the Flutter/iOS/Android apps all +drive it through `upsert_push_registration`). We cannot test against it. + +The blocker is the surface, not the protocol. `wn`'s command set is +`tui debug create-identity login whoami logout export-nsec accounts keys chats +media groups messages follows profile relays usage-diagnostics settings users +notifications stream daemon sync relay-stats reset`, and `wn notifications` has +exactly one subcommand: `subscribe`. Nothing on that CLI registers a token, +emits a kind 447/448/449, or accepts a kind 446 trigger. So there is no way to +drive push through the interop harness the way `amy`/`wn` drive messages, +media, avatars, edits and streams. + +Closing that would mean building a Rust harness against `marmot-app`'s push API +directly — real work, worth doing when push is actually shipping and not +before, since the thing it would protect is not yet reachable by a user. + +What we do have: + +- the spec's own published removal fixture — its canonical NIP-01 + serialization, the resulting event id, and the `owner_sig` a known secret + produces over it — asserted in `PushOwnerProofTest`; +- byte-layout assertions for `SignedRecord` written independently of the + encoder, so a mistake has to be made twice to pass; +- the ordering primitive, tombstone durability and leaf-cleanup rules in + `PushRecordStoreTest`; +- the advisory-drop behaviour of every decoder in `PushGossipTest`. + +That is a strong single-implementation story and explicitly not an interop one. +Until a reference surface exists, assume the wire shape is unproven against a +second implementation. diff --git a/quartz/src/jvmTest/kotlin/com/vitorpamplona/quartz/nip01Core/relay/prodbench/DispatchStageBenchmark.kt b/quartz/src/jvmTest/kotlin/com/vitorpamplona/quartz/nip01Core/relay/prodbench/DispatchStageBenchmark.kt index ed0909257e..ef06acbedc 100644 --- a/quartz/src/jvmTest/kotlin/com/vitorpamplona/quartz/nip01Core/relay/prodbench/DispatchStageBenchmark.kt +++ b/quartz/src/jvmTest/kotlin/com/vitorpamplona/quartz/nip01Core/relay/prodbench/DispatchStageBenchmark.kt @@ -298,9 +298,27 @@ class DispatchStageBenchmark { } } + /** + * Opt-in, like every other benchmark in this repo. + * + * It pushes 30,000 events through six dispatch variants twice, inside a + * `runTest` whose default cutoff is one minute. On an idle machine that is + * seconds; on a loaded CI runner it is not, and the run then fails with + * `UncompletedCoroutinesError` — a red build that measured the machine's + * load rather than the code. A benchmark should report a number, never + * decide whether a change is correct. + * + * Enable with `-DrunLoadBenchmark=true`. + */ + private val enabled = System.getProperty("runLoadBenchmark") == "true" + @Test fun dispatchStageBenchmark() = kotlinx.coroutines.test.runTest { + if (!enabled) { + println("[skip] dispatchStageBenchmark — benchmark. Enable with -DrunLoadBenchmark=true") + return@runTest + } println("=== DISPATCH STAGE BENCHMARK (post-parse, pre-verify) ===") println("cores=${Runtime.getRuntime().availableProcessors()} uniqueEvents=$UNIQUE_EVENTS subsPerRelay=$SUBS_PER_RELAY") From 92f1fe342294c2a3dc33f3998ad74ae70ec4f479 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 11:36:52 +0000 Subject: [PATCH 49/79] feat(marmot): add several members in one commit, and stop passing vectors vacuously MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Batched Adds ------------ MDK — and therefore both White Noise clients — turns a `create_group` with N invitees into ONE Commit: N Add proposals and one Welcome carrying N `EncryptedGroupSecrets`, keyed by KeyPackage reference (RFC 9420 §12.4.3.1). We staged one Add per commit, so the same group landed at epoch N instead of epoch 1 and cost a round trip per invitee. `MlsGroup.addMembers` / `MlsGroupManager.stageAddMembers` propose-N then commit once; `MarmotManager.addMembers` publishes that single commit and fans the same Welcome bytes out to each invitee. The singular entry points delegate, so no caller changes. Scenario vectors: two shapes, one of them unread ------------------------------------------------ The conformance vectors state their expectations two ways — `expected_trace.observations` and `expected_outcomes` — and the parser only read the first. Seven of the nine vectors here use the second, so they parsed to ZERO expectations, replayed their steps and reported green without checking anything. `in_group` was also treated as a leaf, which silently skipped every step nested inside it, and `send_app_message` built a message the runner never queued for delivery. Now parsed and checked: `client_state`, `clients_converged`, `pending_resolution`, `no_pending_work`, inline `assert`/`payload_count` (the forward-secrecy and isolation assertions), `added_members`, `clear_events`, and multi-group clients. `convergence_decision` has no counterpart in our engine, so `convergence-committer-selected` is now REFUSED via `UnsupportedScenarioOutcome` rather than passed on the parts that happen to be modelled. A new guard test fails any vector that parses to nothing to check. three-client-message-exchange and conversation now replay for real. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/commons/marmot/MarmotManager.kt | 136 +++++++--- .../marmot/scenario/MarmotScenarioRunner.kt | 248 ++++++++++++++---- .../scenario/MarmotScenarioVectorTest.kt | 84 ++++-- .../commons/marmot/scenario/ScenarioVector.kt | 160 +++++++++-- .../quartz/marmot/mls/group/MlsGroup.kt | 20 +- .../marmot/mls/group/MlsGroupManager.kt | 8 +- 6 files changed, 520 insertions(+), 136 deletions(-) diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 9ccdefb93d..89aad9ab1d 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -655,6 +655,17 @@ class MarmotManager( return TextMessageBundle(outbound = outbound, innerEvent = innerEvent) } + /** + * A single invitee for [addMemberInvites]: whose KeyPackage is consumed, the bare + * KeyPackage bytes as published, and the id of the event that carried them + * (the Welcome must reference it so the invitee can retire that KeyPackage). + */ + data class MemberInvite( + val memberPubKey: HexKey, + val keyPackageBytes: ByteArray, + val keyPackageEventId: HexKey, + ) + /** * Add a member to a group by consuming their published [KeyPackageEvent]. * @@ -662,21 +673,14 @@ class MarmotManager( * event id into the WelcomeDelivery. Prefer this overload — both the UI's * `Account.addMarmotGroupMember` and the CLI's `group add` command call it. */ - @OptIn(kotlin.io.encoding.ExperimentalEncodingApi::class) suspend fun addMember( nostrGroupId: HexKey, keyPackageEvent: KeyPackageEvent, relays: List, - ): Pair = - addMember( - nostrGroupId = nostrGroupId, - memberPubKey = keyPackageEvent.pubKey, - keyPackageBytes = - kotlin.io.encoding.Base64 - .decode(keyPackageEvent.keyPackageBase64()), - keyPackageEventId = keyPackageEvent.id, - relays = relays, - ) + ): Pair { + val (event, welcomes) = addMembers(nostrGroupId, listOf(keyPackageEvent), relays) + return Pair(event, welcomes.firstOrNull()) + } /** * Add a member to a group. @@ -689,18 +693,80 @@ class MarmotManager( keyPackageEventId: HexKey, relays: List, ): Pair { - // Verify that the KeyPackage credential matches the expected member + val (event, welcomes) = + addMemberInvites( + nostrGroupId, + listOf(MemberInvite(memberPubKey, keyPackageBytes, keyPackageEventId)), + relays, + ) + return Pair(event, welcomes.firstOrNull()) + } + + /** + * Add several members to a group in a SINGLE commit, from their published + * [KeyPackageEvent]s. See [addMemberInvites] for the batching contract. + */ + @OptIn(kotlin.io.encoding.ExperimentalEncodingApi::class) + suspend fun addMembers( + nostrGroupId: HexKey, + keyPackageEvents: List, + relays: List, + ): Pair> = + addMemberInvites( + nostrGroupId = nostrGroupId, + invites = + keyPackageEvents.map { + MemberInvite( + memberPubKey = it.pubKey, + keyPackageBytes = + kotlin.io.encoding.Base64 + .decode(it.keyPackageBase64()), + keyPackageEventId = it.id, + ) + }, + relays = relays, + ) + + /** + * Add several members to a group in a SINGLE commit. + * + * RFC 9420 §12.4.3.1 lets one Commit carry N Add proposals and one Welcome + * holding N `EncryptedGroupSecrets`, one per added member keyed by their + * KeyPackage reference. So the group advances by exactly ONE epoch no + * matter how many people join, and every invitee receives the SAME Welcome + * bytes — each finds its own secrets entry. MDK (and therefore White + * Noise) batches this way, so a per-invitee commit loop would diverge from + * the reference on epoch numbers and round trips alike. + * + * Returns the single commit GroupEvent to publish, and one WelcomeDelivery + * per invitee — empty if the commit was not confirmed by any relay. + */ + suspend fun addMemberInvites( + nostrGroupId: HexKey, + invites: List, + relays: List, + ): Pair> { + require(invites.isNotEmpty()) { "addMemberInvites: invites must not be empty" } + require(invites.map { it.memberPubKey }.toSet().size == invites.size) { + "addMemberInvites: the same member appears twice in one commit" + } + + // Verify that each KeyPackage credential matches the expected member // pubkey. Accepts either framing — a peer's published KeyPackage is an // MLSMessage, and bare bytes still arrive from our own pre-fix // publications sitting on relays. - val kp = KeyPackageUtils.decodeKeyPackage(keyPackageBytes) - val credential = kp.leafNode.credential - require(credential is Credential.Basic) { - "KeyPackage must use BasicCredential" - } - require(credential.identity.toHexKey() == memberPubKey) { - "KeyPackage credential identity does not match memberPubKey" - } + val decoded = + invites.map { invite -> + val kp = KeyPackageUtils.decodeKeyPackage(invite.keyPackageBytes) + val credential = kp.leafNode.credential + require(credential is Credential.Basic) { + "KeyPackage must use BasicCredential" + } + require(credential.identity.toHexKey() == invite.memberPubKey) { + "KeyPackage credential identity does not match memberPubKey" + } + kp + } // Per RFC 9420 §12.4 (and MDK), the outbound kind:445 MUST be // outer-encrypted with the pre-commit (epoch-N) exporter secret so @@ -709,29 +775,31 @@ class MarmotManager( // that key. val publication = commitAndPublish(nostrGroupId, relays) { - // The BARE KeyPackage, not the bytes as published. Transport + // The BARE KeyPackages, not the bytes as published. Transport // framing is the Marmot layer's business; MLS takes the struct. - groupManager.stageAddMember(nostrGroupId, kp.toTlsBytes()) + groupManager.stageAddMembers(nostrGroupId, decoded.map { it.toTlsBytes() }) } - // The Welcome is a SEPARATE, retryable per-invitee delivery obligation - // that only exists once the Add is canonical. A Welcome for an epoch + // The Welcomes are SEPARATE, retryable per-invitee delivery obligations + // that only exist once the Add is canonical. A Welcome for an epoch // no relay accepted would invite someone into a group that does not // exist anywhere else. - val welcomeDelivery = + val welcomeDeliveries = if (publication.confirmed) { - welcomeSender.wrapWelcome( - commitResult = publication.commitResult, - recipientPubKey = memberPubKey, - keyPackageEventId = keyPackageEventId, - relays = relays, - nostrGroupId = nostrGroupId, - ) + invites.mapNotNull { invite -> + welcomeSender.wrapWelcome( + commitResult = publication.commitResult, + recipientPubKey = invite.memberPubKey, + keyPackageEventId = invite.keyPackageEventId, + relays = relays, + nostrGroupId = nostrGroupId, + ) + } } else { - null + emptyList() } - return Pair(publication.event, welcomeDelivery) + return Pair(publication.event, welcomeDeliveries) } /** diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt index 3285ea89e0..8547762bdd 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt @@ -56,11 +56,14 @@ import com.vitorpamplona.quartz.utils.RandomInstance * * ## Refusing rather than skipping * - * A step type the runner does not implement throws [UnsupportedScenarioStep]. + * A step type the runner does not implement throws [UnsupportedScenarioStep], + * and an expected outcome it cannot check throws [UnsupportedScenarioOutcome]. * Nineteen of the portable vectors need fault injection or group-data steps we * have not modelled, and a runner that quietly ignored those steps would report * a pass for a script it did not execute — worse than no coverage, because it - * would look like coverage. + * would look like coverage. The same is true one level up: a vector whose + * conclusion is a `convergence_decision` we do not model is refused, not passed + * on the parts that happen to be checkable. */ class MarmotScenarioRunner( private val vector: ScenarioVector, @@ -70,6 +73,19 @@ class MarmotScenarioRunner( /** Queued outbound events: (sender, event). Drained by `deliver_all`. */ private val inFlight = mutableListOf>() + /** + * The group label the current step runs against. + * + * `in_group` wraps a step and names a label; everything else runs against + * [DEFAULT_GROUP]. A client can be in several groups at once and the + * isolation vectors are entirely about what does NOT cross between them, + * so a single group per client would test the opposite of the point. + */ + private var currentGroup = DEFAULT_GROUP + + /** Which label each created group id belongs to, so joiners can be filed. */ + private val labelByGroupId = mutableMapOf() + private class VectorClient( val name: String, ) { @@ -81,7 +97,12 @@ class MarmotScenarioRunner( /** Delivered but not yet processed — `tick` is what processes. */ val inbox = mutableListOf() val received = mutableListOf() - var groupId: HexKey? = null + + /** Group label -> nostr group id, for every group this client is in. */ + val groups = mutableMapOf() + + /** Members this client watched join, by pubkey, since the last `clear_events`. */ + val sawJoin = mutableListOf() } /** @@ -94,22 +115,31 @@ class MarmotScenarioRunner( * step. It is the same information in the same order, just consulted when * this implementation needs it. */ - private val publishOutcomes = mutableMapOf>() + private val publishOutcomes = mutableMapOf>>() + + /** Publication label -> whether OUR gate confirmed it, for `pending_resolution`. */ + private val resolved = mutableMapOf() private fun preScanPublishOutcomes() { vector.steps.filter { it.type == "acknowledge_outbound" }.forEach { step -> val client = step.string("client") ?: return@forEach val accepted = step.string("outcome") == "accepted" - publishOutcomes.getOrPut(client) { mutableListOf() }.add(accepted) + publishOutcomes + .getOrPut(client) { mutableListOf() } + .add(step.string("publication").orEmpty() to accepted) } } private fun nextOutcome(client: String): Boolean { val queue = publishOutcomes[client] ?: return true - return if (queue.isEmpty()) true else queue.removeAt(0) + if (queue.isEmpty()) return true + val (label, accepted) = queue.removeAt(0) + if (label.isNotEmpty()) resolved[label] = accepted + return accepted } suspend fun run() { + vector.unmodelledOutcomes.firstOrNull()?.let { throw UnsupportedScenarioOutcome(it.type) } preScanPublishOutcomes() clients.values.forEach { client -> client.manager = @@ -138,31 +168,78 @@ class MarmotScenarioRunner( "send_app_message" -> sendAppMessage(step) "deliver_all" -> deliverAll() "tick" -> step.strings("clients").ifEmpty { vector.clients }.forEach { tick(it) } + "in_group" -> inGroup(step) + "clear_events" -> clearEvents(step) + "assert" -> assertPredicate(step) // The publication's outcome was consumed when it was made; the step // itself carries no further state change. "acknowledge_outbound" -> Unit // Assertions the trace re-states; `verify()` checks them from the // expected observations, which is the same information. - "observe", "observe_exact", "in_group", "assert", "clear_events", "await_quiescence" -> Unit + "observe", "observe_exact", "await_quiescence" -> Unit else -> throw UnsupportedScenarioStep(step.type) } } + /** Run the wrapped step against the named group label. */ + private suspend fun inGroup(step: ScenarioVector.Step) { + val action = step.step("action") ?: error("in_group without an action") + val previous = currentGroup + currentGroup = step.string("group") ?: DEFAULT_GROUP + try { + execute(action) + } finally { + currentGroup = previous + } + } + + /** + * Reset the observation counters, as the reference's `clear_events` does. + * + * It is what makes a later `received_payloads` mean "since this point" + * rather than "ever", so dropping it would make every post-clear + * expectation fail against a list that still holds the setup traffic. + */ + private fun clearEvents(step: ScenarioVector.Step) { + step.strings("clients").ifEmpty { vector.clients }.forEach { + client(it).received.clear() + client(it).sawJoin.clear() + } + } + + /** + * Check an inline `assert` predicate. + * + * The only predicate our vectors use is `payload_count`, and every one of + * them asserts a count of ZERO: it is how forward secrecy and multigroup + * isolation are stated — a payload this client must NOT hold. That makes it + * the highest-value assertion in the set and the last one that should be + * skipped. + */ + private fun assertPredicate(step: ScenarioVector.Step) { + val assertion = step.obj("assertion") ?: error("assert without an assertion") + val predicate = assertion.step("predicate") ?: error("assertion without a predicate") + when (predicate.type) { + "payload_count" -> { + val who = predicate.string("client") ?: error("payload_count without a client") + val payload = predicate.string("payload").orEmpty() + val want = predicate.int("count") ?: 0 + val got = client(who).received.count { it == payload } + check(got == want) { + "vector ${vector.name}: $who holds $got copies of '$payload', expected $want" + } + } + + else -> throw UnsupportedScenarioStep("assert/${predicate.type}") + } + } + private suspend fun createGroup(step: ScenarioVector.Step) { val creator = client(step.string("creator") ?: error("create_group without a creator")) val name = step.string("name").orEmpty() val groupId = RandomInstance.bytes(32).toHexKey() val invitees = step.strings("invitees") - if (invitees.size > 1) { - throw ScenarioBatchingDivergence( - "create_group names ${invitees.size} invitees and the reference adds them in one " + - "commit (epoch 1); MarmotManager.addMember stages one Add per commit, so we " + - "would reach epoch ${invitees.size}. Both are valid MLS; the traces cannot match " + - "until we can commit several Adds together.", - ) - } - creator.manager.createCurrentProfileGroup( nostrGroupId = groupId, relays = listOf("wss://vector.invalid"), @@ -172,13 +249,14 @@ class MarmotScenarioRunner( client(admin).signer.pubKey.hexToByteArray() }, ) - creator.groupId = groupId + labelByGroupId[groupId] = currentGroup + creator.groups[currentGroup] = groupId addMembers(creator, groupId, invitees) } private suspend fun inviteMembers(step: ScenarioVector.Step) { val inviter = client(step.string("inviter") ?: error("invite_members without an inviter")) - val groupId = inviter.groupId ?: error("${inviter.name} invited before joining a group") + val groupId = inviter.groups[currentGroup] ?: error("${inviter.name} invited before joining a group") addMembers(inviter, groupId, step.strings("invitees")) } @@ -187,35 +265,54 @@ class MarmotScenarioRunner( groupId: HexKey, invitees: List, ) { - invitees.forEach { inviteeName -> - val invitee = client(inviteeName) - // A KeyPackage per invitee, minted on demand: the vector names - // members, not key material. - val bundle = invitee.manager.generateKeyPackageEvent(relays = emptyList()) - val (_, delivery) = - inviter.manager.addMember( - nostrGroupId = groupId, - keyPackageEvent = bundle, - relays = emptyList(), - ) + if (invitees.isEmpty()) return + + // A KeyPackage per invitee, minted on demand: the vector names + // members, not key material. + val bundles = + invitees.map { inviteeName -> + val invitee = client(inviteeName) + invitee to invitee.manager.generateKeyPackageEvent(relays = emptyList()) + } + + // ONE commit for the whole batch, as the reference does — N Adds in a + // single Commit and a single Welcome carrying N EncryptedGroupSecrets. + // Adding them one at a time would burn an epoch per invitee and the + // traces would no longer line up. + val (_, deliveries) = + inviter.manager.addMembers( + nostrGroupId = groupId, + keyPackageEvents = bundles.map { it.second }, + relays = emptyList(), + ) + + val byPubKey = bundles.associate { (invitee, _) -> invitee.signer.pubKey to invitee } + deliveries.forEach { delivery -> // The Welcome goes straight to its recipient's inbox. Gift-wrap // addressing is the transport's job and the interop harness's test. - delivery?.let { invitee.inbox.add(it.giftWrapEvent) } - invitee.groupId = groupId + byPubKey[delivery.recipientPubKey]?.inbox?.add(delivery.giftWrapEvent) } } private suspend fun sendAppMessage(step: ScenarioVector.Step) { val sender = client(step.string("sender") ?: error("send_app_message without a sender")) - val groupId = sender.groupId ?: error("${sender.name} sent before joining a group") + val groupId = sender.groups[currentGroup] ?: error("${sender.name} sent before joining a group") val payload = step.string("payload").orEmpty() - sender.manager.buildTextMessage(groupId, payload, persistOwn = false) + // An application message does NOT go through the publish gate — it + // advances nothing and has nothing to roll back — so the runner queues + // it itself. Leaving that out meant every `send_app_message` built an + // event nobody ever delivered. + val bundle = sender.manager.buildTextMessage(groupId, payload, persistOwn = false) + inFlight.add(sender.name to bundle.outbound.signedEvent) } private fun deliverAll() { val batch = inFlight.toList() inFlight.clear() batch.forEach { (senderName, event) -> + // Broadcast to everyone else, including clients who are not in the + // sending group. Their engine refusing that traffic is precisely + // what multigroup isolation asserts. clients.values.filter { it.name != senderName }.forEach { it.inbox.add(event) } } } @@ -224,9 +321,18 @@ class MarmotScenarioRunner( val client = client(clientName) val batch = client.inbox.toList() client.inbox.clear() + + // Snapshot membership of the groups this client is ALREADY in, so a + // commit processed below can be attributed as "saw N join". A group + // joined during this tick has no before-state and contributes nothing: + // the joiner did not watch anyone join, it arrived to a membership. + val before = client.groups.values.associateWith { membersOf(client, it) } + batch.forEach { event -> when (val result = client.manager.ingest(event)) { - is MarmotIngestResult.JoinedGroup -> client.groupId = result.nostrGroupId + is MarmotIngestResult.JoinedGroup -> + client.groups[labelByGroupId[result.nostrGroupId] ?: DEFAULT_GROUP] = result.nostrGroupId + is MarmotIngestResult.Message -> Event .fromJsonOrNull(result.inner.innerEventJson) @@ -236,35 +342,80 @@ class MarmotScenarioRunner( else -> Unit } } + + before.forEach { (groupId, was) -> + client.sawJoin.addAll(membersOf(client, groupId) - was) + } } + private fun membersOf( + client: VectorClient, + groupId: HexKey, + ): Set = + client.manager + .memberPubkeys(groupId) + .map { it.pubkey } + .toSet() + /** Compare every client's end state against the vector's expected trace. */ private fun verify() { val failures = mutableListOf() + + vector.pendingResolutions.forEach { expected -> + val confirmed = resolved[expected.publication] + val want = expected.resolution == "confirmed" + if (confirmed == null) { + failures.add("publication '${expected.publication}' never happened") + } else if (confirmed != want) { + failures.add( + "publication '${expected.publication}' resolved " + + "${if (confirmed) "confirmed" else "rolled_back"}, expected ${expected.resolution}", + ) + } + } + + vector.quiescentClients.forEach { name -> + val client = clients[name] ?: return@forEach + if (client.inbox.isNotEmpty()) failures.add("$name still has ${client.inbox.size} events unprocessed") + } + if (vector.quiescentClients.isNotEmpty() && inFlight.isNotEmpty()) { + failures.add("${inFlight.size} events are still undelivered") + } + vector.observations.forEach { expected -> val client = clients[expected.client] ?: return@forEach - val groupId = client.groupId - if (groupId == null) { + if (client.groups.isEmpty()) { failures.add("${expected.client} is in no group") return@forEach } - expected.epoch?.let { want -> - val got = client.manager.groupEpoch(groupId) - if (got != want) failures.add("${expected.client} epoch $got, expected $want") - } - expected.memberCount?.let { want -> - val got = client.manager.memberCount(groupId) - if (got != want) failures.add("${expected.client} has $got members, expected $want") - } - expected.groupName?.let { want -> - val got = client.manager.groupView(groupId)?.name - if (got != want) failures.add("${expected.client} group name '$got', expected '$want'") + // A per-group fact stated once applies to EVERY group the client + // holds — the isolation vectors put a client in several groups and + // state one epoch and one member count for all of them. + client.groups.forEach { (label, groupId) -> + expected.epoch?.let { want -> + val got = client.manager.groupEpoch(groupId) + if (got != want) failures.add("${expected.client}[$label] epoch $got, expected $want") + } + expected.memberCount?.let { want -> + val got = client.manager.memberCount(groupId) + if (got != want) failures.add("${expected.client}[$label] has $got members, expected $want") + } + expected.groupName?.let { want -> + val got = client.manager.groupView(groupId)?.name + if (got != want) failures.add("${expected.client}[$label] group name '$got', expected '$want'") + } } if (expected.receivedPayloads.isNotEmpty()) { val got = client.received.sorted() val want = expected.receivedPayloads.sorted() if (got != want) failures.add("${expected.client} received $got, expected $want") } + expected.addedMembers?.let { want -> + val got = client.sawJoin.mapNotNull { pubkey -> clients.values.firstOrNull { it.signer.pubKey == pubkey }?.name } + if (got.sorted() != want.sorted()) { + failures.add("${expected.client} saw $got join, expected $want") + } + } } check(failures.isEmpty()) { "vector ${vector.name} diverged from its expected trace:\n " + failures.joinToString("\n ") @@ -275,5 +426,8 @@ class MarmotScenarioRunner( private companion object { const val CHAT_KIND = 9 + + /** The label for a vector that never says `in_group` — most of them. */ + const val DEFAULT_GROUP = "default" } } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt index f1cc1f7cbb..a7941c9279 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt @@ -22,6 +22,7 @@ package com.vitorpamplona.amethyst.commons.marmot.scenario import kotlinx.coroutines.runBlocking import kotlin.test.Test +import kotlin.test.assertEquals import kotlin.test.assertFailsWith import kotlin.test.assertTrue import kotlin.test.fail @@ -74,32 +75,53 @@ class MarmotScenarioVectorTest { fun invitePublishFail() = replay("invite-publish-fail.v1.json") /** - * The two vectors we cannot replay, and exactly why. - * - * Both create a group with several invitees. The reference adds them in one - * commit, so the group is at epoch 1; our `addMember` stages one Add per - * commit, so we would reach epoch 2. Neither is a protocol error — a commit - * per Add is valid MLS and any peer processes it — but the traces cannot - * match until we can commit several Adds together, and creating a group - * costs us an extra round trip per invitee until then. - * - * Asserted rather than deleted so the divergence stays visible: the day - * batched adds land, this test fails and these two move up to [replay]. + * The vectors whose `create_group` names several invitees. The reference + * adds them all in ONE commit — epoch 1, one Welcome carrying an + * EncryptedGroupSecrets per invitee — and so do we now, so the traces line + * up. They were refused as a batching divergence until batched Adds landed. */ @Test - fun aMultiInviteeCreateStillDivergesOnBatching() { - listOf( - "three-client-message-exchange.v1.json", - "convergence-committer-selected.v1.json", - "conversation.v1.json", - ).forEach { name -> - val thrown = - assertFailsWith("$name should still diverge on batching") { - runBlocking { MarmotScenarioRunner(load(name)).run() } - } + fun threeClientMessageExchange() = replay("three-client-message-exchange.v1.json") + + @Test + fun conversation() = replay("conversation.v1.json") + + /** + * `convergence-committer-selected` concludes with a `convergence_decision` + * — which tip the client picked, under which rule, and whether the witness + * quorum was met. Our convergence engine makes that decision but does not + * report it in those terms, so there is nothing to compare against and the + * runner refuses the vector rather than passing it on the observations it + * can check. + * + * Asserted rather than deleted so the gap stays visible: the day the engine + * exposes its decision, this test fails and the vector moves up to [replay]. + */ + @Test + fun aConvergenceDecisionIsStillUnmodelled() { + val thrown = + assertFailsWith { + runBlocking { MarmotScenarioRunner(load("convergence-committer-selected.v1.json")).run() } + } + assertEquals("convergence_decision", thrown.outcomeType) + } + + /** + * Every vector must parse to at least one thing to check. + * + * Two expectation shapes ship in this set — `expected_trace.observations` + * and `expected_outcomes` — and reading only the first left seven of the + * nine vectors with nothing to compare against, replaying their steps and + * reporting green. A vector that asserts nothing is worse than a missing + * vector, so this guards the parser rather than any one scenario. + */ + @Test + fun everyVectorStatesSomethingToCheck() { + VECTORS.forEach { name -> + val vector = load(name) assertTrue( - thrown.message.orEmpty().contains("one commit"), - "the divergence must say what it is: ${thrown.message}", + vector.observations.isNotEmpty() || vector.unmodelledOutcomes.isNotEmpty(), + "$name parsed to zero expectations — it would pass without checking anything", ) } } @@ -115,4 +137,20 @@ class MarmotScenarioVectorTest { "unexpected conformance version ${vector.conformanceVersion}", ) } + + private companion object { + /** Every vector this suite ships, so the parser guard covers them all. */ + val VECTORS = + listOf( + "invite-member.v1.json", + "current-profile-required-set.v1.json", + "latecomer-forward-secrecy.v1.json", + "multigroup-isolation.v1.json", + "publish-fail.v1.json", + "invite-publish-fail.v1.json", + "three-client-message-exchange.v1.json", + "conversation.v1.json", + "convergence-committer-selected.v1.json", + ) + } } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt index 91b6c65595..64a888efe3 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt @@ -45,6 +45,9 @@ class ScenarioVector( val clients: List, val steps: List, val observations: List, + val pendingResolutions: List = emptyList(), + val quiescentClients: List = emptyList(), + val unmodelledOutcomes: List = emptyList(), ) { class Step( val type: String, @@ -52,10 +55,27 @@ class ScenarioVector( ) { fun string(key: String): String? = (raw[key] as? JsonPrimitive)?.takeIf { it.isString }?.content + fun int(key: String): Int? = (raw[key] as? JsonPrimitive)?.content?.toIntOrNull() + fun strings(key: String): List = (raw[key] as? JsonArray) ?.mapNotNull { (it as? JsonPrimitive)?.takeIf { p -> p.isString }?.content } .orEmpty() + + /** + * A step nested inside this one, as its own [Step]. + * + * `in_group` is a wrapper: it names a group label and carries the real + * step under `action`. Treating it as a leaf silently skipped every + * create and every message inside it. + */ + fun step(key: String): Step? = + (raw[key] as? JsonObject)?.let { + Step((it["type"] as? JsonPrimitive)?.content.orEmpty(), it) + } + + /** A nested object read as a [Step] so the same accessors work on it. */ + fun obj(key: String): Step? = (raw[key] as? JsonObject)?.let { Step(key, it) } } /** What one client's state must look like when the script says to look. */ @@ -65,6 +85,31 @@ class ScenarioVector( val memberCount: Int?, val groupName: String?, val receivedPayloads: List, + /** + * Members this client must have SEEN JOIN, by client name. Null when + * the vector does not state it — which is not the same as an empty + * list, and an empty list is itself an assertion. + */ + val addedMembers: List? = null, + ) + + /** + * A publication the script named, and how the reference says it ended. + * + * `confirmed` means the relay accepted it and the commit became canonical; + * `rolled_back` means it did not and the committer stayed where it was. + * Checking these is the only thing that proves our publish-before-apply + * gate resolved the same way the reference's did. + */ + class PendingResolution( + val client: String, + val publication: String, + val resolution: String, + ) + + /** The outcome types this runner has no check for, named so it can refuse. */ + class UnmodelledOutcome( + val type: String, ) companion object { @@ -78,29 +123,90 @@ class ScenarioVector( val obj = element as JsonObject Step(obj.getValue("type").jsonPrimitive.content, obj) } - val observations = + // TWO vector shapes ship side by side. The older one nests a + // trace under `expected_trace.observations`; the newer one lists + // typed entries under `expected_outcomes`. Reading only the first + // meant SEVEN of the nine vectors here parsed to zero expectations + // and "passed" without checking anything — the exact failure this + // runner exists to avoid. + val traced = ((root["expected_trace"] as? JsonObject)?.get("observations") as? JsonArray) - ?.map { element -> - val obj = element as JsonObject - Observation( - client = obj.getValue("client").jsonPrimitive.content, - epoch = (obj["epoch"] as? JsonPrimitive)?.content?.toLongOrNull(), - memberCount = (obj["member_count"] as? JsonPrimitive)?.content?.toIntOrNull(), - groupName = (obj["group_name"] as? JsonPrimitive)?.takeIf { it.isString }?.content, - receivedPayloads = - (obj["received_payloads"] as? JsonArray) - ?.mapNotNull { (it as? JsonPrimitive)?.content } - .orEmpty(), + ?.map { observationOf(it as JsonObject) } + .orEmpty() + + val outcomes = (root["expected_outcomes"] as? JsonArray).orEmpty() + val stated = mutableListOf() + val resolutions = mutableListOf() + val quiescent = mutableListOf() + val unmodelled = mutableListOf() + + outcomes.forEach { element -> + val obj = element as JsonObject + when ((obj["type"] as? JsonPrimitive)?.content) { + "client_state" -> stated.add(observationOf(obj)) + + // A converged set states the same per-client facts for + // several clients at once. + "clients_converged" -> + (obj["clients"] as? JsonArray).orEmpty().forEach { name -> + stated.add( + Observation( + client = (name as JsonPrimitive).content, + epoch = (obj["epoch"] as? JsonPrimitive)?.content?.toLongOrNull(), + memberCount = (obj["member_count"] as? JsonPrimitive)?.content?.toIntOrNull(), + groupName = null, + receivedPayloads = emptyList(), + ), + ) + } + + "pending_resolution" -> + resolutions.add( + PendingResolution( + client = obj.getValue("client").jsonPrimitive.content, + publication = obj.getValue("pending").jsonPrimitive.content, + resolution = obj.getValue("resolution").jsonPrimitive.content, + ), ) - }.orEmpty() + + "no_pending_work" -> + (obj["clients"] as? JsonArray).orEmpty().forEach { + quiescent.add((it as JsonPrimitive).content) + } + + else -> + unmodelled.add( + UnmodelledOutcome((obj["type"] as? JsonPrimitive)?.content.orEmpty()), + ) + } + } + return ScenarioVector( name = (root["scenario_name"] as JsonPrimitive).content, conformanceVersion = (root["conformance_version"] as? JsonPrimitive)?.content.orEmpty(), clients = (scenario["clients"] as JsonArray).map { (it as JsonPrimitive).content }, steps = steps, - observations = observations, + observations = traced + stated, + pendingResolutions = resolutions, + quiescentClients = quiescent, + unmodelledOutcomes = unmodelled, ) } + + private fun observationOf(obj: JsonObject) = + Observation( + client = obj.getValue("client").jsonPrimitive.content, + epoch = (obj["epoch"] as? JsonPrimitive)?.content?.toLongOrNull(), + memberCount = (obj["member_count"] as? JsonPrimitive)?.content?.toIntOrNull(), + groupName = (obj["group_name"] as? JsonPrimitive)?.takeIf { it.isString }?.content, + receivedPayloads = + (obj["received_payloads"] as? JsonArray) + ?.mapNotNull { (it as? JsonPrimitive)?.content } + .orEmpty(), + addedMembers = + (obj["added_members"] as? JsonArray) + ?.mapNotNull { (it as? JsonPrimitive)?.content }, + ) } } @@ -113,20 +219,16 @@ class UnsupportedScenarioStep( ) /** - * Raised where our engine cannot reach the vector's trace because it batches - * differently, not because either side is wrong. + * Raised when a vector states an expected outcome this runner cannot check. * - * The one case today: the reference adds every invitee named by `create_group` - * in a SINGLE commit, so a group created with two invitees is at epoch 1. Our - * `MarmotManager.addMember` stages one Add per commit, so the same group - * reaches epoch 2. Both are valid MLS — a commit per Add is not a protocol - * error, and a peer processes either — but the epoch numbers differ, and so - * does the round-trip cost of creating a group. - * - * Kept as its own signal rather than folded into a trace mismatch: a divergence - * we understand and have chosen not to fix yet should not read like a bug we - * have not noticed. + * Same contract as [UnsupportedScenarioStep], one level up: a vector whose + * conclusion we cannot evaluate has not been conformed to, however cleanly its + * steps replayed. Silently dropping the outcome would turn the vector into an + * expensive no-op that reports green. */ -class ScenarioBatchingDivergence( - message: String, -) : IllegalStateException(message) +class UnsupportedScenarioOutcome( + val outcomeType: String, +) : IllegalStateException( + "expected outcome '$outcomeType' has no check in this runner — the vector is refused " + + "rather than passed on the outcomes that happen to be modelled", + ) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index c8a513f715..c3057cf5a3 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -4167,8 +4167,24 @@ class MlsGroup private constructor( * [CommitResult.preCommitExporterSecret] is the key the outer kind:445 * MUST be encrypted with (RFC 9420 §12.4 + MDK parity). */ - fun addMember(keyPackageBytes: ByteArray): CommitResult { - proposeAdd(keyPackageBytes) + fun addMember(keyPackageBytes: ByteArray): CommitResult = addMembers(listOf(keyPackageBytes)) + + /** + * Add several members in ONE commit. + * + * Not a convenience wrapper over [addMember] — a commit per Add costs an + * epoch and a publish round trip each, and every existing member processes + * each one. The Welcome already carries a separate `EncryptedGroupSecrets` + * per added member, keyed by KeyPackage reference (RFC 9420 §12.4.3.1), so + * one commit serves all of them and each joiner finds its own secrets. + * + * The reference implementation adds every invitee named at group creation + * this way, which is why a group it creates with two invitees sits at epoch + * 1 while ours used to reach epoch 2. + */ + fun addMembers(keyPackagesBytes: List): CommitResult { + require(keyPackagesBytes.isNotEmpty()) { "addMembers needs at least one KeyPackage" } + keyPackagesBytes.forEach { proposeAdd(it) } return commit() } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt index c5cdd43c14..4baec45607 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt @@ -397,7 +397,13 @@ class MlsGroupManager( suspend fun stageAddMember( nostrGroupId: HexKey, keyPackageBytes: ByteArray, - ): StagedCommit = stage(nostrGroupId) { it.addMember(keyPackageBytes) } + ): StagedCommit = stageAddMembers(nostrGroupId, listOf(keyPackageBytes)) + + /** Stage several Adds as ONE commit. See [MlsGroup.addMembers]. */ + suspend fun stageAddMembers( + nostrGroupId: HexKey, + keyPackagesBytes: List, + ): StagedCommit = stage(nostrGroupId) { it.addMembers(keyPackagesBytes) } /** Stage a Remove. See [StagedCommit] for why this does not apply. */ suspend fun stageRemoveMember( From 14b02a1ebb6c5b835fb25507ebb0d258cc44ce33 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 11:50:18 +0000 Subject: [PATCH 50/79] feat(marmot): disband a group, edit its avatar link, and replay seven more vectors MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Disband (`marmot.group.lifecycle.v1`, 0x800c) -------------------------------------------- We enforced the Disbanded state but nothing on this side could enter it, so the enforcement was only reachable from a peer's commit. `disbandGroup` writes the component in a Commit every member replays. It refuses what is structurally impossible — a non-admin, a legacy MIP-01 group with no carrier for a lifecycle state, a second disband — and, unlike every other metadata setter, refuses to report success when no relay acknowledged the commit: the caller is about to tell a human the conversation is over, and a group that is still live for everyone else must not be announced as ended. The obligation stays queued either way. On Android it is an admin-only action in the group header behind its own confirmation, worded for what it is: for everyone, and not reopenable. Avatar link (`marmot.group.avatar-url.v1`, 0x8007) -------------------------------------------------- `setGroupAvatarUrl` existed but only `amy` could reach it — the renderer already preferred a URL avatar over the Blossom image, and no Android screen could set one. Edit Group Info now carries the field; it commits separately from the profile so saving a rename does not rewrite the avatar state, and clearing it falls the group back to the uploaded image. Seven more scenario vectors --------------------------- New steps: `update_group_data`, `remove_members`, and the delivery-fault family — `omit_message`, `duplicate_message`, `reorder_messages`, `withhold_message`, `release_withheld`. Selectors are matched key by key and an unknown key is refused, because a silently widened selector injects a different fault from the scripted one while still reporting under the vector's name. `group_profile` outcomes are checked too. Replaying now: group-data-update, deferred-tick-catchup, incremental-growth, drop-queued, queue-faults, delayed-past-epoch-app-message, readd-after-eviction. 18 vector tests, all green. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/model/AccountMarmotActions.kt | 50 +++ .../ui/screen/loggedIn/AccountViewModel.kt | 18 + .../chats/marmotGroup/EditGroupInfoScreen.kt | 36 +- .../marmotGroup/MarmotGroupInfoScreen.kt | 90 ++++- amethyst/src/main/res/values/strings.xml | 2 + .../composeResources/values/strings.xml | 6 + .../amethyst/commons/marmot/MarmotManager.kt | 64 +++ .../commons/marmot/MarmotDisbandTest.kt | 158 ++++++++ .../marmot/scenario/MarmotScenarioRunner.kt | 193 ++++++++- .../scenario/MarmotScenarioVectorTest.kt | 38 ++ .../commons/marmot/scenario/ScenarioVector.kt | 30 ++ .../resources/marmot/vectors/README.md | 33 +- .../vectors/deferred-tick-catchup.v1.json | 272 +++++++++++++ .../delayed-past-epoch-app-message.v1.json | 132 ++++++ .../marmot/vectors/drop-queued.v1.json | 95 +++++ .../marmot/vectors/group-data-update.v1.json | 127 ++++++ .../marmot/vectors/incremental-growth.v1.json | 376 ++++++++++++++++++ .../marmot/vectors/queue-faults.v1.json | 125 ++++++ .../vectors/readd-after-eviction.v1.json | 37 ++ 19 files changed, 1865 insertions(+), 17 deletions(-) create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt create mode 100644 commons/src/jvmTest/resources/marmot/vectors/deferred-tick-catchup.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/delayed-past-epoch-app-message.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/drop-queued.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/group-data-update.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/incremental-growth.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/queue-faults.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/readd-after-eviction.v1.json diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt index 2b93a44319..5d3a9bdea0 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt @@ -20,7 +20,9 @@ */ package com.vitorpamplona.amethyst.model +import com.vitorpamplona.quartz.marmot.appComponents.GroupAvatarUrlV1 import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 +import com.vitorpamplona.quartz.marmot.appComponents.MarmotWebUrl import com.vitorpamplona.quartz.marmot.appComponents.MessageRetentionV1 import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageEvent import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageFetcher @@ -553,6 +555,54 @@ class AccountMarmotActions( manager.syncMetadataTo(nostrGroupId, chatroom) } + /** + * Disband a Marmot MLS group (`marmot.group.lifecycle.v1`, `0x800c`). + * + * Irreversible and absorbing: every member's copy terminalizes when they + * apply the commit, and there is no commit that walks it back. The caller + * MUST have confirmed with a human first — this layer only refuses what is + * structurally impossible (a non-admin, a legacy group, a second disband), + * which is not the same as asking. + * + * Deliberately NOT silent on failure the way the other actions here are: a + * disband that did not happen must not look like one that did, so the + * exception propagates to the caller's error path. + */ + suspend fun disbandMarmotGroup( + nostrGroupId: HexKey, + groupRelays: Set, + ) { + val manager = account.marmotManager ?: return + if (!account.isWriteable()) return + + manager.disbandGroup(nostrGroupId, groupRelays.toList()) + val chatroom = account.marmotGroupList.getOrCreateGroup(nostrGroupId) + manager.syncMetadataTo(nostrGroupId, chatroom) + } + + /** + * Set or clear the group's plain-`https` avatar link + * (`marmot.group.avatar-url.v1`, `0x8007`). + * + * The lightweight avatar carrier: no Blossom upload, no key material, just + * a URL every Marmot client can render. A blank [url] clears it, which + * falls the group back to its encrypted Blossom image if it has one — the + * two carriers coexist and this one wins while it is set. + */ + suspend fun setMarmotGroupAvatarUrl( + nostrGroupId: HexKey, + url: String, + groupRelays: Set, + ) { + val manager = account.marmotManager ?: return + if (!account.isWriteable()) return + + val avatar = url.trim().takeIf { it.isNotEmpty() }?.let { GroupAvatarUrlV1(MarmotWebUrl.normalize(it, label = "avatar URL")) } + manager.setGroupAvatarUrl(nostrGroupId, avatar, groupRelays.toList()) + val chatroom = account.marmotGroupList.getOrCreateGroup(nostrGroupId) + manager.syncMetadataTo(nostrGroupId, chatroom) + } + /** * Grant admin privileges to [targetPubKey] in a Marmot MLS group by * appending them to `admin_pubkeys` via a GroupContextExtensions commit. diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt index 32eb0d23a4..238a61bf4e 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt @@ -2521,6 +2521,24 @@ class AccountViewModel( account.marmot.leaveMarmotGroup(nostrGroupId, relays) } + /** + * Disband the group for everyone. Irreversible — the caller is responsible + * for confirming with the user before this is reached. + */ + suspend fun disbandMarmotGroup(nostrGroupId: String) { + val relays = account.marmot.marmotGroupRelays(nostrGroupId) + account.marmot.disbandMarmotGroup(nostrGroupId, relays) + } + + /** Set (or, with a blank string, clear) the group's plain-https avatar link. */ + suspend fun setMarmotGroupAvatarUrl( + nostrGroupId: String, + url: String, + ) { + val relays = account.marmot.marmotGroupRelays(nostrGroupId) + account.marmot.setMarmotGroupAvatarUrl(nostrGroupId, url, relays) + } + suspend fun resetMarmotState() { account.marmot.resetMarmotState() } diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/EditGroupInfoScreen.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/EditGroupInfoScreen.kt index c8c26db6fd..40eb0300e2 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/EditGroupInfoScreen.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/EditGroupInfoScreen.kt @@ -43,6 +43,9 @@ import androidx.compose.ui.unit.dp import androidx.lifecycle.compose.collectAsStateWithLifecycle import com.vitorpamplona.amethyst.R import com.vitorpamplona.amethyst.commons.resources.Res +import com.vitorpamplona.amethyst.commons.resources.marmot_avatar_url +import com.vitorpamplona.amethyst.commons.resources.marmot_avatar_url_footer +import com.vitorpamplona.amethyst.commons.resources.marmot_avatar_url_placeholder import com.vitorpamplona.amethyst.commons.resources.marmot_edit_info_footer import com.vitorpamplona.amethyst.commons.resources.marmot_group_description_placeholder import com.vitorpamplona.amethyst.commons.resources.marmot_group_name @@ -71,9 +74,11 @@ fun EditGroupInfoScreen( val currentName by chatroom.displayName.collectAsStateWithLifecycle() val currentDescription by chatroom.description.collectAsStateWithLifecycle() val currentImage by chatroom.image.collectAsStateWithLifecycle() + val currentAvatarUrl by chatroom.avatarUrl.collectAsStateWithLifecycle() var name by remember(currentName) { mutableStateOf(currentName ?: "") } var description by remember(currentDescription) { mutableStateOf(currentDescription ?: "") } + var avatarUrl by remember(currentAvatarUrl) { mutableStateOf(currentAvatarUrl?.url.orEmpty()) } var pickedIcon by remember { mutableStateOf(null) } var removeIcon by remember { mutableStateOf(false) } var isSaving by remember { mutableStateOf(false) } @@ -81,7 +86,12 @@ fun EditGroupInfoScreen( val context = LocalContext.current val iconChanged = pickedIcon != null || removeIcon - val hasChanges = name != (currentName ?: "") || description != (currentDescription ?: "") || iconChanged + val avatarUrlChanged = avatarUrl.trim() != currentAvatarUrl?.url.orEmpty() + val hasChanges = + name != (currentName ?: "") || + description != (currentDescription ?: "") || + iconChanged || + avatarUrlChanged Scaffold( topBar = { @@ -104,6 +114,13 @@ fun EditGroupInfoScreen( description = description.trim(), icon = iconChange, ) + // A separate component (`0x8007`) and therefore a + // separate commit — only made when it actually + // changed, so saving a rename does not also + // rewrite the avatar state. + if (avatarUrlChanged) { + accountViewModel.setMarmotGroupAvatarUrl(nostrGroupId, avatarUrl.trim()) + } launch(Dispatchers.Main) { Toast .makeText(context, stringRes(context, R.string.marmot_group_info_updated), Toast.LENGTH_SHORT) @@ -179,6 +196,23 @@ fun EditGroupInfoScreen( enabled = !isSaving, ) + Spacer(modifier = Modifier.height(16.dp)) + + // The plain-https avatar carrier. It wins over the uploaded + // Blossom image while it is set, and clearing it falls the group + // back to that image — so the two fields are not alternatives to + // choose between, they stack. + OutlinedTextField( + value = avatarUrl, + onValueChange = { avatarUrl = it }, + label = { Text(stringRes(Res.string.marmot_avatar_url)) }, + placeholder = { Text(stringRes(Res.string.marmot_avatar_url_placeholder)) }, + supportingText = { Text(stringRes(Res.string.marmot_avatar_url_footer)) }, + modifier = Modifier.fillMaxWidth(), + singleLine = true, + enabled = !isSaving, + ) + Spacer(modifier = Modifier.height(8.dp)) Text( diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt index 40dfcb0bcf..69ce70df00 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt @@ -75,6 +75,9 @@ import com.vitorpamplona.amethyst.commons.resources.Res import com.vitorpamplona.amethyst.commons.resources.marmot_add_member import com.vitorpamplona.amethyst.commons.resources.marmot_add_member_placeholder import com.vitorpamplona.amethyst.commons.resources.marmot_add_to_group +import com.vitorpamplona.amethyst.commons.resources.marmot_disband_group +import com.vitorpamplona.amethyst.commons.resources.marmot_disband_group_action +import com.vitorpamplona.amethyst.commons.resources.marmot_disband_group_confirm import com.vitorpamplona.amethyst.commons.resources.marmot_edit_group_info import com.vitorpamplona.amethyst.commons.resources.marmot_grant import com.vitorpamplona.amethyst.commons.resources.marmot_grant_admin_confirm @@ -142,7 +145,9 @@ fun MarmotGroupInfoScreen( val relayActivity by chatroom.relayActivity.collectAsStateWithLifecycle() val members by chatroom.members.collectAsStateWithLifecycle() var showLeaveDialog by remember { mutableStateOf(false) } + var showDisbandDialog by remember { mutableStateOf(false) } var isLeaving by remember { mutableStateOf(false) } + var isDisbanding by remember { mutableStateOf(false) } var memberToRemove by remember { mutableStateOf(null) } var memberToPromote by remember { mutableStateOf(null) } var memberToDemote by remember { mutableStateOf(null) } @@ -182,9 +187,25 @@ fun MarmotGroupInfoScreen( contentDescription = stringRes(Res.string.marmot_edit_group_info), ) } + // Disband ends the conversation for EVERYONE, so only an + // admin sees it and it sits behind its own confirmation. + // Peers reject a non-admin's lifecycle commit anyway; not + // offering it is what keeps a member from trying. + if (myPubkey in adminPubkeys) { + IconButton( + onClick = { showDisbandDialog = true }, + enabled = !isLeaving && !isDisbanding, + ) { + Icon( + symbol = MaterialSymbols.DeleteForever, + contentDescription = stringRes(Res.string.marmot_disband_group), + tint = MaterialTheme.colorScheme.error, + ) + } + } IconButton( onClick = { showLeaveDialog = true }, - enabled = !isLeaving, + enabled = !isLeaving && !isDisbanding, ) { Icon( symbol = MaterialSymbols.AutoMirrored.ExitToApp, @@ -388,6 +409,41 @@ fun MarmotGroupInfoScreen( ) } + if (showDisbandDialog) { + DisbandGroupDialog( + groupName = displayName ?: stringRes(Res.string.marmot_this_group), + onConfirm = { + showDisbandDialog = false + isDisbanding = true + scope.launch(Dispatchers.IO) { + try { + accountViewModel.disbandMarmotGroup(nostrGroupId) + launch(Dispatchers.Main) { + Toast + .makeText(context, stringRes(context, R.string.marmot_group_disbanded_toast), Toast.LENGTH_SHORT) + .show() + } + nav.nav(Route.Message) + } catch (e: Exception) { + // A disband that reached no relay leaves the group + // live, so the screen must stay usable rather than + // navigate away on a change that did not happen. + isDisbanding = false + launch(Dispatchers.Main) { + Toast + .makeText( + context, + stringRes(context, R.string.marmot_failed_to_disband, e.message), + Toast.LENGTH_LONG, + ).show() + } + } + } + }, + onDismiss = { showDisbandDialog = false }, + ) + } + memberToRemove?.let { member -> ConfirmRemoveMemberDialog( memberPubkey = member.pubkey, @@ -650,6 +706,38 @@ fun LeaveGroupDialog( ) } +/** + * Confirmation for the one group action that cannot be undone. + * + * Disband is absorbing: every member's copy terminalizes and no commit walks it + * back, so the wording says "for everyone" and "cannot be reopened" rather than + * the usual "are you sure". + */ +@Composable +fun DisbandGroupDialog( + groupName: String, + onConfirm: () -> Unit, + onDismiss: () -> Unit, +) { + AlertDialog( + onDismissRequest = onDismiss, + title = { Text(stringRes(Res.string.marmot_disband_group)) }, + text = { + Text(stringRes(Res.string.marmot_disband_group_confirm, groupName)) + }, + confirmButton = { + TextButton(onClick = onConfirm) { + Text(stringRes(Res.string.marmot_disband_group_action), color = MaterialTheme.colorScheme.error) + } + }, + dismissButton = { + TextButton(onClick = onDismiss) { + Text(stringRes(R.string.cancel)) + } + }, + ) +} + @Composable private fun ConfirmRemoveMemberDialog( memberPubkey: HexKey, diff --git a/amethyst/src/main/res/values/strings.xml b/amethyst/src/main/res/values/strings.xml index 31c37ef9e9..dab6461e71 100644 --- a/amethyst/src/main/res/values/strings.xml +++ b/amethyst/src/main/res/values/strings.xml @@ -2696,6 +2696,8 @@ Failed to update: %1$s Failed to create group: %1$s Failed to leave group: %1$s + Group disbanded + Could not disband the group: %1$s Adding %1$s… Failed to add %1$s: %2$s unknown error diff --git a/commons/src/commonMain/composeResources/values/strings.xml b/commons/src/commonMain/composeResources/values/strings.xml index 57ed45e69d..9884a9c103 100644 --- a/commons/src/commonMain/composeResources/values/strings.xml +++ b/commons/src/commonMain/composeResources/values/strings.xml @@ -2638,6 +2638,12 @@ 1 week Messages disappear after %1$s Messages are deleted from every member\'s device after this long. It cannot be changed later. + Disband group + Disband "%1$s" for everyone? The conversation ends for every member and cannot be reopened — a new group would have to be created. + Disband + Avatar link + https://example.com/avatar.png + An https link every member can load. Leave it empty to use the uploaded image instead. Marmot Group Group %1$s… %1$s… diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 89aad9ab1d..c03e326b48 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -38,6 +38,7 @@ import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaReferenceV2 import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaV2 import com.vitorpamplona.quartz.marmot.appComponents.GroupAvatarUrlV1 import com.vitorpamplona.quartz.marmot.appComponents.GroupBlossomImageV1 +import com.vitorpamplona.quartz.marmot.appComponents.GroupLifecycleV1 import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 import com.vitorpamplona.quartz.marmot.appComponents.MarmotGroupState import com.vitorpamplona.quartz.marmot.appComponents.MessageRetentionV1 @@ -1591,6 +1592,69 @@ class MarmotManager( }.event } + /** + * Disband the group: write `marmot.group.lifecycle.v1` (`0x800c`) as + * `disbanded` in a Commit every member replays. + * + * Disband is ABSORBING and irreversible. There is no un-disband commit and + * no later branch that supersedes it — a replacement conversation is a new + * MLS group with a new id. So this is deliberately the only writer of that + * component, it refuses to run twice, and the caller is expected to have + * confirmed with a human first. + * + * Only an admin may do it. The check is local *as well as* remote: peers + * reject a non-admin's lifecycle change anyway, but a non-admin who got + * this far would burn an epoch and desync themselves for a commit nobody + * applies, which is a worse failure than an exception. + * + * Current profile only — MIP-01's `0xF2EE` blob has no lifecycle field, so + * a legacy group genuinely cannot express "disbanded" and this refuses + * rather than writing the state somewhere no peer reads. + * + * The commit takes the normal publish-before-apply path, so a disband that + * no relay acknowledged does not terminalize the group locally either — + * exactly the outcome we want, since a locally-disbanded group nobody else + * heard about would be unreachable state. + */ + suspend fun disbandGroup( + nostrGroupId: HexKey, + relays: List = groupRelays(nostrGroupId), + ): OutboundGroupEvent { + val view = groupView(nostrGroupId) ?: throw IllegalStateException("Not a member of group $nostrGroupId") + check(view.isCurrentProfile) { + "Group $nostrGroupId is a legacy MIP-01 group and has no carrier for a lifecycle state" + } + check(signer.pubKey in view.adminPubkeys) { + "Only an admin of group $nostrGroupId can disband it" + } + check(groupManager.getGroup(nostrGroupId)?.currentGroupState()?.isDisbanded != true) { + "Group $nostrGroupId is already disbanded" + } + // requireOutboundAllowed also refuses an Unrecoverable group, which is + // the point: disbanding from state we do not trust would publish a + // terminal commit off a fork. + requireOutboundAllowed(nostrGroupId, "disband the group") + val publication = + commitAndPublish(nostrGroupId, relays) { + groupManager.stageAppDataUpdate( + nostrGroupId, + GroupLifecycleV1.COMPONENT_ID, + GroupLifecycleV1.DISBANDED.encode(), + ) + } + // Every other setter is content to leave an unacknowledged commit as a + // retryable obligation and say nothing, because a later retry lands the + // same state. This one cannot: the caller is about to tell a human the + // conversation is over, and a group that is still live for everyone + // else must not be reported as ended. The obligation IS still queued — + // the message says so — but the answer to "did it happen" is no. + check(publication.confirmed) { + "Disband of group $nostrGroupId reached no relay; it stays queued as a pending " + + "publish and the group is still live until one acknowledges it" + } + return publication.event + } + /** * Set or clear the group avatar, writing to whichever carrier the group uses. * diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt new file mode 100644 index 0000000000..75311c3305 --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt @@ -0,0 +1,158 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 +import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData +import com.vitorpamplona.quartz.marmot.protocolCore.GroupLifecycleState +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertFailsWith +import kotlin.test.assertTrue + +/** + * Disbanding a group — `marmot.group.lifecycle.v1`, component `0x800c`. + * + * We already REFUSED work in a disbanded group; nothing could put a group into + * that state from this side, so the enforcement was only ever reachable from a + * peer's commit. These cover the initiator half. + * + * Disband is absorbing: there is no un-disband, no later branch supersedes it, + * and a replacement conversation is a new MLS group. So the guards matter more + * than the happy path — a mistaken disband cannot be undone, and one published + * off unpublished or untrusted state would terminalize the group for everyone + * on a commit its author never confirmed. + */ +class MarmotDisbandTest { + private val nostrGroupId = "d".repeat(64) + + private class Fixture( + publisher: MarmotPublisher = ACCEPTING_RELAY, + ) { + val signer = NostrSignerInternal(KeyPair()) + val manager = + MarmotManager( + signer, + SnapshotStateStore(), + SnapshotMessageStore(), + SnapshotBundleStore(), + publisher = publisher, + ) + } + + private suspend fun Fixture.createCurrentProfile() = + manager.createCurrentProfileGroup( + nostrGroupId = nostrGroupId, + relays = listOf("wss://relay.invalid"), + profile = GroupProfileV1("doomed", ""), + ) + + @Test + fun `an admin disbands the group and everything after is refused`() = + runBlocking { + val f = Fixture() + f.createCurrentProfile() + + f.manager.disbandGroup(nostrGroupId) + + assertTrue(f.manager.groupState(nostrGroupId)?.isDisbanded == true) + assertEquals(GroupLifecycleState.DISBANDED, f.manager.lifecycle(nostrGroupId)) + + // The whole point of the state: outbound work stops. + assertFailsWith { + f.manager.buildTextMessage(nostrGroupId, "anyone still here?") + } + Unit + } + + @Test + fun `disband is absorbing and cannot be issued twice`() = + runBlocking { + val f = Fixture() + f.createCurrentProfile() + f.manager.disbandGroup(nostrGroupId) + + val thrown = assertFailsWith { f.manager.disbandGroup(nostrGroupId) } + assertTrue(thrown.message.orEmpty().contains("already disbanded")) + } + + @Test + fun `a non-admin member cannot disband`() = + runBlocking { + // Two clients: the creator is the admin, the invitee is not. Peers + // would reject a lifecycle change from a non-admin anyway; refusing + // locally is what stops the invitee burning an epoch on a commit + // nobody will apply. + val alice = Fixture() + val bob = Fixture() + alice.createCurrentProfile() + + val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) + val (_, welcome) = alice.manager.addMember(nostrGroupId, kp, emptyList()) + bob.manager.ingest(welcome!!.giftWrapEvent) + + val thrown = assertFailsWith { bob.manager.disbandGroup(nostrGroupId) } + assertTrue(thrown.message.orEmpty().contains("Only an admin")) + } + + @Test + fun `a legacy group has no carrier for a lifecycle state`() = + runBlocking { + val f = Fixture() + f.manager.createGroup( + nostrGroupId, + MarmotGroupData( + nostrGroupId = nostrGroupId, + name = "legacy", + relays = listOf("wss://relay.invalid"), + ), + ) + + val thrown = assertFailsWith { f.manager.disbandGroup(nostrGroupId) } + assertTrue(thrown.message.orEmpty().contains("legacy")) + } + + @Test + fun `a disband no relay accepted does not terminalize the group locally`() = + runBlocking { + // Publish-before-apply, on the one commit that cannot be walked + // back: a group disbanded here but nowhere else would be dead for + // us and alive for everyone. The obligation stays queued, the local + // group stays live, and the caller is told it did NOT happen — + // otherwise the UI would announce an ending that never occurred. + val f = Fixture(publisher = MarmotPublisher { _, _ -> false }) + f.createCurrentProfile() + + val thrown = assertFailsWith { f.manager.disbandGroup(nostrGroupId) } + assertTrue(thrown.message.orEmpty().contains("reached no relay")) + + assertTrue(f.manager.groupState(nostrGroupId)?.isDisbanded != true) + assertTrue(f.manager.lifecycle(nostrGroupId) != GroupLifecycleState.DISBANDED) + + // Still a working group: nothing about a failed disband may leak + // into the states that stop outbound work. + f.manager.buildTextMessage(nostrGroupId, "still here") + Unit + } +} diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt index 8547762bdd..0957889afb 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt @@ -70,8 +70,23 @@ class MarmotScenarioRunner( ) { private val clients = vector.clients.associateWith { VectorClient(it) } - /** Queued outbound events: (sender, event). Drained by `deliver_all`. */ - private val inFlight = mutableListOf>() + /** Queued outbound events, drained by `deliver_all`. */ + private val inFlight = mutableListOf() + + /** Messages pulled out of the queue by `withhold_message`, by label. */ + private val withheld = mutableMapOf>() + + /** + * One event sitting in the delivery queue, with the facts a fault selector + * matches on: who sent it, whether it is an application message or a + * commit, and — for a commit — the publication label the vector gave it. + */ + private class Queued( + val sender: String, + val event: Event, + val messageClass: String, + val publication: String?, + ) /** * The group label the current step runs against. @@ -130,6 +145,9 @@ class MarmotScenarioRunner( } } + /** The publication label the NEXT publish by this client carries, if any. */ + private fun peekLabel(client: String): String? = publishOutcomes[client]?.firstOrNull()?.first?.takeIf { it.isNotEmpty() } + private fun nextOutcome(client: String): Boolean { val queue = publishOutcomes[client] ?: return true if (queue.isEmpty()) return true @@ -150,8 +168,9 @@ class MarmotScenarioRunner( SnapshotBundleStore(), publisher = MarmotPublisher { event, _ -> + val label = peekLabel(client.name) val accepted = nextOutcome(client.name) - if (accepted) inFlight.add(client.name to event) + if (accepted) inFlight.add(Queued(client.name, event, COMMIT_CLASS, label)) accepted }, ) @@ -171,6 +190,13 @@ class MarmotScenarioRunner( "in_group" -> inGroup(step) "clear_events" -> clearEvents(step) "assert" -> assertPredicate(step) + "update_group_data" -> updateGroupData(step) + "remove_members" -> removeMembers(step) + "omit_message" -> omitMessage(step) + "duplicate_message" -> duplicateMessage(step) + "reorder_messages" -> reorderMessages(step) + "withhold_message" -> withholdMessage(step) + "release_withheld" -> releaseWithheld(step) // The publication's outcome was consumed when it was made; the step // itself carries no further state change. "acknowledge_outbound" -> Unit @@ -218,6 +244,11 @@ class MarmotScenarioRunner( */ private fun assertPredicate(step: ScenarioVector.Step) { val assertion = step.obj("assertion") ?: error("assert without an assertion") + // `exactly` is the only mode in this set. A different one would mean a + // different comparison (at-least, at-most), so refuse rather than + // silently applying equality to it. + val mode = assertion.string("mode") ?: "exactly" + if (mode != "exactly") throw UnsupportedScenarioStep("assert/mode=$mode") val predicate = assertion.step("predicate") ?: error("assertion without a predicate") when (predicate.type) { "payload_count" -> { @@ -294,6 +325,131 @@ class MarmotScenarioRunner( } } + /** + * Rename the group — the vector's `update_group_data`. + * + * Only `name` ever appears in these vectors, and the current profile keeps + * it in `marmot.group.profile.v1` (`0x8001`), so this is a profile commit + * that preserves the description rather than a blanket metadata replace. + */ + private suspend fun updateGroupData(step: ScenarioVector.Step) { + val who = client(step.string("client") ?: error("update_group_data without a client")) + val groupId = who.groups[currentGroup] ?: error("${who.name} renamed a group it is not in") + val name = step.string("name").orEmpty() + val description = + who.manager + .groupView(groupId) + ?.description + .orEmpty() + who.manager.setGroupProfile(groupId, name, description, emptyList()) + } + + /** + * Evict members by name. The vector names people; MLS removes leaves, so + * the pubkey is resolved to the leaf index the group actually holds. + */ + private suspend fun removeMembers(step: ScenarioVector.Step) { + val remover = client(step.string("remover") ?: error("remove_members without a remover")) + val groupId = remover.groups[currentGroup] ?: error("${remover.name} evicted from a group it is not in") + val targets = step.strings("members").map { client(it).signer.pubKey }.toSet() + val leaves = + remover.manager + .memberPubkeys(groupId) + .filter { it.pubkey in targets } + .map { it.leafIndex } + check(leaves.size == targets.size) { + "remove_members names ${targets.size} members but only ${leaves.size} are in the group" + } + // One Remove per commit. Every vector in this set evicts exactly one + // member per step, and the step names ONE publication — so a + // multi-member step would publish N commits against one + // acknowledgement and silently mis-align every outcome after it. + // Refuse instead, the same way an unimplemented step is refused. + check(leaves.size == 1) { + "remove_members evicts ${leaves.size} members in one step; this runner commits one " + + "Remove at a time and the vector's single acknowledgement would not line up" + } + remover.manager.removeMember(groupId, leaves.single(), emptyList()) + } + + /** + * Does this queued event match a fault selector? + * + * Every key is a conjunct and an unknown key is refused rather than + * ignored — a selector we silently widen would inject a different fault + * from the one the vector scripted, and still report on the vector's name. + */ + private fun matches( + queued: Queued, + selector: ScenarioVector.Step, + ): Boolean { + selector.keys().forEach { key -> + when (key) { + "sender" -> if (selector.string("sender") != queued.sender) return false + "class" -> if (selector.string("class") != queued.messageClass) return false + "publication" -> if (selector.string("publication") != queued.publication) return false + // Handled by the caller: it picks which of the matches to act on. + "occurrence" -> Unit + else -> throw UnsupportedScenarioStep("selector/$key") + } + } + return true + } + + /** Indices in [inFlight] the selector names, honouring `occurrence`. */ + private fun select(selector: ScenarioVector.Step): List { + val all = inFlight.indices.filter { matches(inFlight[it], selector) } + val occurrence = selector.int("occurrence") ?: return all + return listOfNotNull(all.getOrNull(occurrence)) + } + + private fun selectorOf(step: ScenarioVector.Step) = step.obj("selector") ?: error("${step.type} without a selector") + + /** Drop a queued message entirely — it never reaches anyone. */ + private fun omitMessage(step: ScenarioVector.Step) { + val hit = select(selectorOf(step)) + check(hit.isNotEmpty()) { "omit_message matched nothing in a queue of ${inFlight.size}" } + hit.sortedDescending().forEach { inFlight.removeAt(it) } + } + + /** Deliver a queued message twice. The receiver must not act on it twice. */ + private fun duplicateMessage(step: ScenarioVector.Step) { + val hit = select(selectorOf(step)) + check(hit.isNotEmpty()) { "duplicate_message matched nothing in a queue of ${inFlight.size}" } + hit.sortedDescending().forEach { inFlight.add(it + 1, inFlight[it]) } + } + + /** Deliver the queue in the order the vector names, not the order it was sent. */ + private fun reorderMessages(step: ScenarioVector.Step) { + val order = step.steps("order") + val taken = mutableSetOf() + val reordered = mutableListOf() + order.forEach { selector -> + val index = select(selector).firstOrNull { it !in taken } + checkNotNull(index) { "reorder_messages names a message that is not queued" } + taken.add(index) + reordered.add(inFlight[index]) + } + inFlight.indices.filter { it !in taken }.forEach { reordered.add(inFlight[it]) } + inFlight.clear() + inFlight.addAll(reordered) + } + + /** Hold a message back under a label; `release_withheld` puts it back. */ + private fun withholdMessage(step: ScenarioVector.Step) { + val label = step.string("label") ?: error("withhold_message without a label") + val hit = select(selectorOf(step)) + check(hit.isNotEmpty()) { "withhold_message matched nothing in a queue of ${inFlight.size}" } + val held = withheld.getOrPut(label) { mutableListOf() } + hit.sortedDescending().forEach { held.add(0, inFlight.removeAt(it)) } + } + + private fun releaseWithheld(step: ScenarioVector.Step) { + val label = step.string("label") ?: error("release_withheld without a label") + val held = withheld.remove(label) ?: error("release_withheld names an unknown label '$label'") + inFlight.addAll(held) + } + private suspend fun sendAppMessage(step: ScenarioVector.Step) { val sender = client(step.string("sender") ?: error("send_app_message without a sender")) val groupId = sender.groups[currentGroup] ?: error("${sender.name} sent before joining a group") @@ -303,17 +459,17 @@ class MarmotScenarioRunner( // it itself. Leaving that out meant every `send_app_message` built an // event nobody ever delivered. val bundle = sender.manager.buildTextMessage(groupId, payload, persistOwn = false) - inFlight.add(sender.name to bundle.outbound.signedEvent) + inFlight.add(Queued(sender.name, bundle.outbound.signedEvent, APPLICATION_CLASS, null)) } private fun deliverAll() { val batch = inFlight.toList() inFlight.clear() - batch.forEach { (senderName, event) -> + batch.forEach { queued -> // Broadcast to everyone else, including clients who are not in the // sending group. Their engine refusing that traffic is precisely // what multigroup isolation asserts. - clients.values.filter { it.name != senderName }.forEach { it.inbox.add(event) } + clients.values.filter { it.name != queued.sender }.forEach { it.inbox.add(queued.event) } } } @@ -348,14 +504,23 @@ class MarmotScenarioRunner( } } + /** + * The membership this client currently sees, or empty when it can no + * longer see the group at all — a client that was just evicted has no + * roster to read, and the vectors reach that state on purpose. + */ private fun membersOf( client: VectorClient, groupId: HexKey, ): Set = - client.manager - .memberPubkeys(groupId) - .map { it.pubkey } - .toSet() + try { + client.manager + .memberPubkeys(groupId) + .map { it.pubkey } + .toSet() + } catch (_: Exception) { + emptySet() + } /** Compare every client's end state against the vector's expected trace. */ private fun verify() { @@ -404,6 +569,10 @@ class MarmotScenarioRunner( val got = client.manager.groupView(groupId)?.name if (got != want) failures.add("${expected.client}[$label] group name '$got', expected '$want'") } + expected.groupDescription?.let { want -> + val got = client.manager.groupView(groupId)?.description + if (got != want) failures.add("${expected.client}[$label] group description '$got', expected '$want'") + } } if (expected.receivedPayloads.isNotEmpty()) { val got = client.received.sorted() @@ -427,6 +596,10 @@ class MarmotScenarioRunner( private companion object { const val CHAT_KIND = 9 + /** The two message classes a fault selector distinguishes. */ + const val APPLICATION_CLASS = "application" + const val COMMIT_CLASS = "commit" + /** The label for a vector that never says `in_group` — most of them. */ const val DEFAULT_GROUP = "default" } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt index a7941c9279..fbd0b5ed09 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt @@ -86,6 +86,37 @@ class MarmotScenarioVectorTest { @Test fun conversation() = replay("conversation.v1.json") + /** A rename lands on every member as a commit, not as a hint. */ + @Test + fun groupDataUpdate() = replay("group-data-update.v1.json") + + /** A client that missed several rounds catches up on one tick. */ + @Test + fun deferredTickCatchup() = replay("deferred-tick-catchup.v1.json") + + /** Members added at each step see only what came after them. */ + @Test + fun incrementalGrowth() = replay("incremental-growth.v1.json") + + /** + * The delivery-fault family: a dropped message, and a queue that duplicates + * and reorders before it delivers. What arrives twice must be acted on + * once, and out-of-order arrival must not change the end state. + */ + @Test + fun dropQueued() = replay("drop-queued.v1.json") + + @Test + fun queueFaults() = replay("queue-faults.v1.json") + + /** An application message from an epoch the group has already left. */ + @Test + fun delayedPastEpochAppMessage() = replay("delayed-past-epoch-app-message.v1.json") + + /** Evicted and invited back: the second membership is not the first. */ + @Test + fun readdAfterEviction() = replay("readd-after-eviction.v1.json") + /** * `convergence-committer-selected` concludes with a `convergence_decision` * — which tip the client picked, under which rule, and whether the witness @@ -151,6 +182,13 @@ class MarmotScenarioVectorTest { "three-client-message-exchange.v1.json", "conversation.v1.json", "convergence-committer-selected.v1.json", + "group-data-update.v1.json", + "deferred-tick-catchup.v1.json", + "incremental-growth.v1.json", + "drop-queued.v1.json", + "queue-faults.v1.json", + "delayed-past-epoch-app-message.v1.json", + "readd-after-eviction.v1.json", ) } } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt index 64a888efe3..35615f2b9a 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt @@ -76,6 +76,19 @@ class ScenarioVector( /** A nested object read as a [Step] so the same accessors work on it. */ fun obj(key: String): Step? = (raw[key] as? JsonObject)?.let { Step(key, it) } + + /** A nested array of objects, each read as a [Step]. */ + fun steps(key: String): List = + (raw[key] as? JsonArray) + ?.mapNotNull { element -> + (element as? JsonObject)?.let { Step((it["type"] as? JsonPrimitive)?.content.orEmpty(), it) } + }.orEmpty() + + /** + * The keys this object carries. A fault selector is checked key by key + * so an unknown one can be refused rather than quietly widening it. + */ + fun keys(): Set = raw.keys } /** What one client's state must look like when the script says to look. */ @@ -91,6 +104,8 @@ class ScenarioVector( * list, and an empty list is itself an assertion. */ val addedMembers: List? = null, + /** The group description the vector states, when it states one. */ + val groupDescription: String? = null, ) /** @@ -160,6 +175,21 @@ class ScenarioVector( ) } + // A profile assertion is per-client state like any other, + // just stated separately because it is about the group's + // metadata rather than its membership. + "group_profile" -> + stated.add( + Observation( + client = obj.getValue("client").jsonPrimitive.content, + epoch = null, + memberCount = null, + groupName = (obj["name"] as? JsonPrimitive)?.takeIf { it.isString }?.content, + receivedPayloads = emptyList(), + groupDescription = (obj["description"] as? JsonPrimitive)?.takeIf { it.isString }?.content, + ), + ) + "pending_resolution" -> resolutions.add( PendingResolution( diff --git a/commons/src/jvmTest/resources/marmot/vectors/README.md b/commons/src/jvmTest/resources/marmot/vectors/README.md index 085b92f273..d012cdd524 100644 --- a/commons/src/jvmTest/resources/marmot/vectors/README.md +++ b/commons/src/jvmTest/resources/marmot/vectors/README.md @@ -11,14 +11,37 @@ fixtures we already consume from `quartz/src/commonTest/resources/marmot/ conformance/`. The rest are **scenario scripts**: a client roster, a step list, and an expected trace. -These nine are the subset whose steps `MarmotScenarioRunner` implements — -`create_group`, `invite_members`, `send_app_message`, `deliver_all`, `tick`, -`acknowledge_outbound`, `observe`, `in_group`, `assert`, `clear_events`. The -other nineteen need fault injection (withhold/release, partition, duplicate, -reorder, restart) or group-data and admin-policy steps; the runner refuses +These sixteen are the subset whose steps `MarmotScenarioRunner` implements: +`create_group`, `invite_members`, `remove_members`, `send_app_message`, +`update_group_data`, `deliver_all`, `tick`, `acknowledge_outbound`, `observe`, +`in_group`, `assert`, `clear_events`, and the queue faults `omit_message`, +`duplicate_message`, `reorder_messages`, `withhold_message`, +`release_withheld`. The rest need `restart_client`, `set_partition`, `leave`, +admin-policy steps, or the `convergence_decision` outcome; the runner refuses them by name rather than skipping quietly, so adding a step type is what widens the set. +## Two expectation shapes + +A vector states what must be true in one of two ways, and BOTH have to be +read: + +- `expected_trace.observations` — the older shape (`publish-fail`, + `three-client-message-exchange`). +- `expected_outcomes` — a list of typed entries: `client_state`, + `clients_converged`, `group_profile`, `pending_resolution`, + `no_pending_work`, and `convergence_decision`. Everything else here uses + this one. + +Reading only the first is not a partial check, it is no check: a vector whose +expectations all live in the other shape replays its steps and reports green +having compared nothing. `MarmotScenarioVectorTest.everyVectorStatesSomethingToCheck` +exists to make that failure loud rather than invisible. + +An outcome type the runner cannot evaluate raises `UnsupportedScenarioOutcome` +and the vector is refused — `convergence-committer-selected` is refused today +for exactly that reason. + ## Refreshing ```bash diff --git a/commons/src/jvmTest/resources/marmot/vectors/deferred-tick-catchup.v1.json b/commons/src/jvmTest/resources/marmot/vectors/deferred-tick-catchup.v1.json new file mode 100644 index 0000000000..2a31e2c68a --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/deferred-tick-catchup.v1.json @@ -0,0 +1,272 @@ +{ + "scenario_name": "deferred-tick-catchup/v1", + "vector_version": "1", + "conformance_version": "0.9.19", + "seed": null, + "scenario": { + "name": "deferred-tick-catchup/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "reconnect", + "invitees": [ + "bob", + "carol", + "dave" + ], + "required_features": [], + "pending": "create", + "initial_admins": [ + "alice" + ] + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol", + "dave" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "reconnect:warm:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "reconnect:warm:bob" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "reconnect:warm:carol" + }, + { + "type": "send_app_message", + "sender": "dave", + "payload": "reconnect:warm:dave" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "reconnect:away:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "reconnect:away:bob" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "reconnect:away:carol" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "update_group_data", + "client": "alice", + "name": "reconnect-renamed", + "pending": "rename" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "rename", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "reconnect:back:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "reconnect:back:bob" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "reconnect:back:carol" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "tick", + "clients": [ + "dave" + ] + }, + { + "type": "observe_exact", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 17, + "client": "alice", + "pending": "rename", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "dave", + "epoch": 2, + "member_count": 4, + "received_payloads": [ + "reconnect:warm:alice", + "reconnect:warm:bob", + "reconnect:warm:carol", + "reconnect:away:alice", + "reconnect:away:bob", + "reconnect:away:carol", + "reconnect:back:alice", + "reconnect:back:bob", + "reconnect:back:carol" + ] + }, + { + "type": "client_state", + "client": "alice", + "epoch": 2, + "member_count": 4, + "received_payloads": [ + "reconnect:warm:bob", + "reconnect:warm:carol", + "reconnect:warm:dave", + "reconnect:away:bob", + "reconnect:away:carol", + "reconnect:back:bob", + "reconnect:back:carol" + ] + }, + { + "type": "group_profile", + "client": "alice", + "name": "reconnect-renamed", + "description": "" + }, + { + "type": "group_profile", + "client": "bob", + "name": "reconnect-renamed", + "description": "" + }, + { + "type": "group_profile", + "client": "carol", + "name": "reconnect-renamed", + "description": "" + }, + { + "type": "group_profile", + "client": "dave", + "name": "reconnect-renamed", + "description": "" + }, + { + "type": "clients_converged", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ], + "epoch": 2, + "member_count": 4 + }, + { + "type": "no_pending_work", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/delayed-past-epoch-app-message.v1.json b/commons/src/jvmTest/resources/marmot/vectors/delayed-past-epoch-app-message.v1.json new file mode 100644 index 0000000000..e7cf71580e --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/delayed-past-epoch-app-message.v1.json @@ -0,0 +1,132 @@ +{ + "scenario_name": "delayed-past-epoch-app-message/v1", + "vector_version": "1", + "conformance_version": "0.9.19", + "seed": null, + "scenario": { + "name": "delayed-past-epoch-app-message/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol", + "david" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "delayed-past-epoch-app", + "invitees": [ + "bob", + "carol" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob", + "carol", + "david" + ] + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "epoch-one-delayed" + }, + { + "type": "withhold_message", + "selector": { "sender": "bob", "class": "application" }, + "label": "old-app" + }, + { + "type": "invite_members", + "inviter": "alice", + "invitees": [ + "david" + ], + "pending": "invite-david" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "invite-david", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "carol", + "david" + ] + }, + { + "type": "release_withheld", + "label": "old-app" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "carol" + ] + }, + { + "type": "observe", + "clients": [ + "carol" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 8, + "client": "alice", + "pending": "invite-david", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "carol", + "epoch": 2, + "member_count": 4, + "received_payloads": [ + "epoch-one-delayed" + ] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/drop-queued.v1.json b/commons/src/jvmTest/resources/marmot/vectors/drop-queued.v1.json new file mode 100644 index 0000000000..11cdd1f730 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/drop-queued.v1.json @@ -0,0 +1,95 @@ +{ + "scenario_name": "drop-queued/v1", + "vector_version": "1", + "conformance_version": "0.9.19", + "seed": null, + "scenario": { + "name": "drop-queued/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "drop", + "invitees": [ + "bob" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob" + ] + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "bob:dropped" + }, + { + "type": "omit_message", + "selector": { "sender": "bob", "class": "application" } + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "bob:delivered" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice" + ] + }, + { + "type": "observe", + "clients": [ + "alice" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "alice", + "epoch": 1, + "member_count": 2, + "received_payloads": [ + "bob:delivered" + ] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/group-data-update.v1.json b/commons/src/jvmTest/resources/marmot/vectors/group-data-update.v1.json new file mode 100644 index 0000000000..f57d236a3b --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/group-data-update.v1.json @@ -0,0 +1,127 @@ +{ + "scenario_name": "group-data-update/v1", + "vector_version": "1", + "conformance_version": "0.9.19", + "seed": null, + "scenario": { + "name": "group-data-update/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "before", + "invitees": [ + "bob" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob" + ] + }, + { + "type": "update_group_data", + "client": "alice", + "name": "after", + "pending": "rename" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "rename", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob" + ] + }, + { + "type": "observe", + "clients": [ + "alice", + "bob" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 6, + "client": "alice", + "pending": "rename", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "alice", + "epoch": 2, + "member_count": 2, + "received_payloads": [] + }, + { + "type": "client_state", + "client": "bob", + "epoch": 2, + "member_count": 2, + "received_payloads": [] + }, + { + "type": "group_profile", + "client": "alice", + "name": "after", + "description": "" + }, + { + "type": "group_profile", + "client": "bob", + "name": "after", + "description": "" + }, + { + "type": "clients_converged", + "clients": [ + "alice", + "bob" + ], + "epoch": 2, + "member_count": 2 + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/incremental-growth.v1.json b/commons/src/jvmTest/resources/marmot/vectors/incremental-growth.v1.json new file mode 100644 index 0000000000..e52636c3f8 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/incremental-growth.v1.json @@ -0,0 +1,376 @@ +{ + "scenario_name": "incremental-growth/v1", + "vector_version": "1", + "conformance_version": "0.9.19", + "seed": null, + "scenario": { + "name": "incremental-growth/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "growth-2", + "invitees": [ + "bob" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "growth:p0:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "growth:p0:bob" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob" + ] + }, + { + "type": "invite_members", + "inviter": "alice", + "invitees": [ + "carol" + ], + "pending": "invite-carol" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "invite-carol", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol" + ] + }, + { + "type": "update_group_data", + "client": "alice", + "name": "growth-3", + "pending": "rename-3" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "rename-3", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "growth:p1:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "growth:p1:bob" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "growth:p1:carol" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "invite_members", + "inviter": "alice", + "invitees": [ + "dave" + ], + "pending": "invite-dave" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "invite-dave", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol", + "dave" + ] + }, + { + "type": "update_group_data", + "client": "alice", + "name": "growth-4", + "pending": "rename-4" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "rename-4", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol", + "dave" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "growth:p2:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "growth:p2:bob" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "growth:p2:carol" + }, + { + "type": "send_app_message", + "sender": "dave", + "payload": "growth:p2:dave" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ] + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "carol", + "payload": "growth:p0:alice", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "dave", + "payload": "growth:p0:alice", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "dave", + "payload": "growth:p1:alice", + "count": 0 + } + } + }, + { + "type": "observe_exact", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 10, + "client": "alice", + "pending": "invite-carol", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 14, + "client": "alice", + "pending": "rename-3", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 23, + "client": "alice", + "pending": "invite-dave", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 27, + "client": "alice", + "pending": "rename-4", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "alice", + "epoch": 5, + "member_count": 4, + "received_payloads": [ + "growth:p0:bob", + "growth:p1:bob", + "growth:p1:carol", + "growth:p2:bob", + "growth:p2:carol", + "growth:p2:dave" + ] + }, + { + "type": "client_state", + "client": "bob", + "epoch": 5, + "member_count": 4, + "received_payloads": [ + "growth:p0:alice", + "growth:p1:alice", + "growth:p1:carol", + "growth:p2:alice", + "growth:p2:carol", + "growth:p2:dave" + ] + }, + { + "type": "client_state", + "client": "carol", + "epoch": 5, + "member_count": 4, + "received_payloads": [ + "growth:p1:alice", + "growth:p1:bob", + "growth:p2:alice", + "growth:p2:bob", + "growth:p2:dave" + ] + }, + { + "type": "client_state", + "client": "dave", + "epoch": 5, + "member_count": 4, + "received_payloads": [ + "growth:p2:alice", + "growth:p2:bob", + "growth:p2:carol" + ] + }, + { + "type": "clients_converged", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ], + "epoch": 5, + "member_count": 4 + }, + { + "type": "no_pending_work", + "clients": [ + "alice", + "bob" + ] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/queue-faults.v1.json b/commons/src/jvmTest/resources/marmot/vectors/queue-faults.v1.json new file mode 100644 index 0000000000..5159db8940 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/queue-faults.v1.json @@ -0,0 +1,125 @@ +{ + "scenario_name": "queue-faults/v1", + "vector_version": "1", + "conformance_version": "0.9.19", + "seed": null, + "scenario": { + "name": "queue-faults/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "faults", + "invitees": [ + "bob", + "carol" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "bob:first" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "carol:second" + }, + { + "type": "duplicate_message", + "selector": { "sender": "bob", "class": "application" } + }, + { + "type": "withhold_message", + "selector": { "sender": "bob", "class": "application", "occurrence": 1 }, + "label": "delayed-copy" + }, + { + "type": "reorder_messages", + "order": [ + { "sender": "carol", "class": "application" }, + { "sender": "bob", "class": "application" } + ] + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice" + ] + }, + { + "type": "release_withheld", + "label": "delayed-copy" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice" + ] + }, + { + "type": "observe", + "clients": [ + "alice" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "alice", + "epoch": 1, + "member_count": 3, + "received_payloads": [ + "carol:second", + "bob:first" + ] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/readd-after-eviction.v1.json b/commons/src/jvmTest/resources/marmot/vectors/readd-after-eviction.v1.json new file mode 100644 index 0000000000..840d5104b4 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/readd-after-eviction.v1.json @@ -0,0 +1,37 @@ +{ + "scenario_name": "readd-after-eviction/v1", + "vector_version": "1", + "conformance_version": "0.9.19", + "seed": null, + "scenario": { + "name": "readd-after-eviction/v1", + "spec_version": "2", + "clients": ["alice", "bob", "carol"], + "steps": [ + {"type": "create_group", "creator": "alice", "name": "readd", "invitees": ["bob", "carol"], "required_features": [], "pending": "create"}, + {"type": "acknowledge_outbound", "client": "alice", "publication": "create", "outcome": "accepted"}, + {"type": "deliver_all"}, + {"type": "tick", "clients": ["bob", "carol"]}, + {"type": "clear_events", "clients": ["alice", "bob", "carol"]}, + {"type": "remove_members", "remover": "alice", "members": ["carol"], "pending": "remove-carol"}, + {"type": "acknowledge_outbound", "client": "alice", "publication": "remove-carol", "outcome": "accepted"}, + {"type": "deliver_all"}, + {"type": "tick", "clients": ["bob", "carol"]}, + {"type": "invite_members", "inviter": "alice", "invitees": ["carol"], "pending": "readd-carol"}, + {"type": "acknowledge_outbound", "client": "alice", "publication": "readd-carol", "outcome": "accepted"}, + {"type": "deliver_all"}, + {"type": "tick", "clients": ["bob", "carol"]}, + {"type": "send_app_message", "sender": "carol", "payload": "carol:back"}, + {"type": "deliver_all"}, + {"type": "tick", "clients": ["alice", "bob"]}, + {"type": "observe", "clients": ["alice", "bob", "carol"]} + ] + }, + "expected_outcomes": [ + {"type": "pending_resolution", "step_index": 6, "client": "alice", "pending": "remove-carol", "resolution": "confirmed"}, + {"type": "pending_resolution", "step_index": 10, "client": "alice", "pending": "readd-carol", "resolution": "confirmed"}, + {"type": "client_state", "client": "alice", "epoch": 3, "member_count": 3, "received_payloads": ["carol:back"]}, + {"type": "client_state", "client": "bob", "epoch": 3, "member_count": 3, "received_payloads": ["carol:back"]}, + {"type": "client_state", "client": "carol", "epoch": 3, "member_count": 3, "received_payloads": []} + ] +} From 5f3661876774e3329d3d0b2e82965225dbf6e894 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 12:06:41 +0000 Subject: [PATCH 51/79] fix(marmot): a leaver's SelfRemove was committed but never applied MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit `MlsGroup.saveState()` does not serialize the staged-proposal pool. `stageCommit` prepares its commit on a CLONE restored from that state, so the clone always started with an empty pool: `commit()` produced an empty proposal list, the epoch advanced, and every proposal the commit was called to apply was silently dropped. The case that bites is a departing member. MIP-03 makes a departure a standalone `SelfRemove` PROPOSAL — the leaver cannot evict themselves — so it sits in the pool until an authorized member commits it. That commit ran, looked successful, and left the leaver IN THE TREE, still holding the group's keys and still able to decrypt everything sent after they left. `stageCommit` now hands the clone the live group's pool. The other `stage*` entry points are untouched: each of those has a proposal of its own to make, and folding a peer's pending SelfRemove into an unrelated commit would also trip MIP-03's no-mixing rule for a non-admin committer. Also here: - `MarmotManager.commitPendingProposals` — the commons-level entry point for "commit what a peer proposed", returning null when nothing is staged so a caller can drive it unconditionally after ingest. - `MlsGroup.hasPendingProposals` / `MlsGroupManager.hasPendingProposals` — a public way to ask whether there is work to commit, where the proposals themselves stay module-internal. - Scenario runner: `restart_client` (rebuilds the manager over the same stores and calls `restoreAll`, so nothing may depend on state that only lived in memory) and `leave`. `restart-delivery-faults` replays. - `removed_members` observations are now checked, including the evictor's own commit — the actor was the one participant who did not remember doing it. Two gaps stay open and asserted rather than deleted, so they fail loudly when fixed: a peer that has the same proposal staged does not apply the commit carrying it inline (`leaver-removal-secrecy`), and the proposal pool still does not survive a restart. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/commons/marmot/MarmotManager.kt | 23 ++ .../commons/marmot/MarmotLeaveProposalTest.kt | 99 +++++ .../marmot/scenario/MarmotScenarioRunner.kt | 122 +++++- .../scenario/MarmotScenarioVectorTest.kt | 37 ++ .../commons/marmot/scenario/ScenarioVector.kt | 9 + .../vectors/leaver-removal-secrecy.v1.json | 349 ++++++++++++++++++ .../vectors/restart-delivery-faults.v1.json | 114 ++++++ .../quartz/marmot/mls/group/MlsGroup.kt | 26 ++ .../marmot/mls/group/MlsGroupManager.kt | 24 +- 9 files changed, 783 insertions(+), 20 deletions(-) create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotLeaveProposalTest.kt create mode 100644 commons/src/jvmTest/resources/marmot/vectors/leaver-removal-secrecy.v1.json create mode 100644 commons/src/jvmTest/resources/marmot/vectors/restart-delivery-faults.v1.json diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index c03e326b48..e93f62b3d2 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -1592,6 +1592,29 @@ class MarmotManager( }.event } + /** + * Commit whatever proposals are staged for this group, if any. + * + * The case that matters is a departing member's standalone `SelfRemove` + * (MIP-03): the leaver cannot evict themselves — a proposal advances + * nothing — so it sits in the pool until an authorized member commits it. + * Until that happens the leaver is STILL IN THE TREE and still able to + * decrypt everything the group sends, which is the opposite of what + * leaving is for. + * + * Returns null when there is nothing staged, so a caller can drive this + * unconditionally after ingest without checking first. + */ + suspend fun commitPendingProposals( + nostrGroupId: HexKey, + relays: List = groupRelays(nostrGroupId), + ): OutboundGroupEvent? { + if (!groupManager.hasPendingProposals(nostrGroupId)) return null + return commitAndPublish(nostrGroupId, relays) { + groupManager.stageCommit(nostrGroupId) + }.event + } + /** * Disband the group: write `marmot.group.lifecycle.v1` (`0x800c`) as * `disbanded` in a Commit every member replays. diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotLeaveProposalTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotLeaveProposalTest.kt new file mode 100644 index 0000000000..e1847ccc6f --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotLeaveProposalTest.kt @@ -0,0 +1,99 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertEquals +import kotlin.test.assertIs +import kotlin.test.assertTrue + +/** + * What happens to a member who leaves. + * + * MIP-03 makes a departure a standalone `SelfRemove` PROPOSAL: the leaver + * cannot evict themselves, because a proposal advances nothing. Until an + * authorized member commits it, the leaver is STILL IN THE TREE — which means + * still holding the group's keys and still able to decrypt everything sent + * after they left. That is the opposite of what leaving is for, so the commit + * is not a nicety; it is the point. + */ +class MarmotLeaveProposalTest { + private val nostrGroupId = "1".repeat(64) + + private class Fixture { + val signer = NostrSignerInternal(KeyPair()) + val manager = + MarmotManager( + signer, + SnapshotStateStore(), + SnapshotMessageStore(), + SnapshotBundleStore(), + publisher = ACCEPTING_RELAY, + ) + } + + @Test + fun `an admin commits a departing member's SelfRemove and the tree shrinks`() = + runBlocking { + val alice = Fixture() + val bob = Fixture() + alice.manager.createCurrentProfileGroup( + nostrGroupId = nostrGroupId, + relays = listOf("wss://relay.invalid"), + profile = GroupProfileV1("departures", ""), + ) + + val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) + val (commit, welcome) = alice.manager.addMember(nostrGroupId, kp, emptyList()) + bob.manager.ingest(welcome!!.giftWrapEvent) + alice.manager.ingest(commit.signedEvent) + assertEquals(2, alice.manager.memberCount(nostrGroupId)) + + // Bob departs. The proposal is all he can produce. + val proposal = bob.manager.leaveGroup(nostrGroupId) + + val staged = alice.manager.ingest(proposal.signedEvent) + assertIs( + staged, + "a peer's SelfRemove must reach the pending pool, not be dropped", + ) + assertTrue( + alice.manager.groupManager.hasPendingProposals(nostrGroupId), + "the staged proposal must be visible as pending work", + ) + + assertTrue( + alice.manager.commitPendingProposals(nostrGroupId, emptyList()) != null, + "there was pending work, so a commit must have been produced", + ) + + assertEquals( + 1, + alice.manager.memberCount(nostrGroupId), + "committing a SelfRemove must actually evict the leaver — otherwise they keep " + + "the group's keys and keep reading everything sent after they left", + ) + } +} diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt index 0957889afb..b10517c809 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt @@ -107,6 +107,7 @@ class MarmotScenarioRunner( val signer = NostrSignerInternal(KeyPair()) val mlsStore = SnapshotStateStore() val messageStore = SnapshotMessageStore() + val bundleStore = SnapshotBundleStore() lateinit var manager: MarmotManager /** Delivered but not yet processed — `tick` is what processes. */ @@ -118,6 +119,9 @@ class MarmotScenarioRunner( /** Members this client watched join, by pubkey, since the last `clear_events`. */ val sawJoin = mutableListOf() + + /** Members this client watched leave, by pubkey, since the last `clear_events`. */ + val sawLeave = mutableListOf() } /** @@ -156,25 +160,33 @@ class MarmotScenarioRunner( return accepted } + /** + * A manager over this client's stores. + * + * Built through a function rather than inline so `restart_client` can make + * a SECOND one over the SAME stores — which is exactly what a restart is: + * every in-memory ratchet, retained epoch and pending pool is gone, and + * whatever the client still knows has to come back off durable state. + */ + private fun buildManager(client: VectorClient) = + MarmotManager( + client.signer, + client.mlsStore, + client.messageStore, + client.bundleStore, + publisher = + MarmotPublisher { event, _ -> + val label = peekLabel(client.name) + val accepted = nextOutcome(client.name) + if (accepted) inFlight.add(Queued(client.name, event, COMMIT_CLASS, label)) + accepted + }, + ) + suspend fun run() { vector.unmodelledOutcomes.firstOrNull()?.let { throw UnsupportedScenarioOutcome(it.type) } preScanPublishOutcomes() - clients.values.forEach { client -> - client.manager = - MarmotManager( - client.signer, - client.mlsStore, - client.messageStore, - SnapshotBundleStore(), - publisher = - MarmotPublisher { event, _ -> - val label = peekLabel(client.name) - val accepted = nextOutcome(client.name) - if (accepted) inFlight.add(Queued(client.name, event, COMMIT_CLASS, label)) - accepted - }, - ) - } + clients.values.forEach { client -> client.manager = buildManager(client) } vector.steps.forEach { step -> execute(step) } verify() @@ -197,6 +209,8 @@ class MarmotScenarioRunner( "reorder_messages" -> reorderMessages(step) "withhold_message" -> withholdMessage(step) "release_withheld" -> releaseWithheld(step) + "restart_client" -> restartClient(step) + "leave" -> leave(step) // The publication's outcome was consumed when it was made; the step // itself carries no further state change. "acknowledge_outbound" -> Unit @@ -230,6 +244,7 @@ class MarmotScenarioRunner( step.strings("clients").ifEmpty { vector.clients }.forEach { client(it).received.clear() client(it).sawJoin.clear() + client(it).sawLeave.clear() } } @@ -370,6 +385,11 @@ class MarmotScenarioRunner( "Remove at a time and the vector's single acknowledgement would not line up" } remover.manager.removeMember(groupId, leaves.single(), emptyList()) + // The evictor watched this departure too. Only ticks diff membership, + // and an eviction the client commits itself never passes through one — + // so without this the actor is the one participant who does not + // remember doing it. + remover.sawLeave.addAll(targets) } /** @@ -450,6 +470,41 @@ class MarmotScenarioRunner( inFlight.addAll(held) } + /** + * Drop the client's process and bring it back over the same stores. + * + * The point is what does NOT survive: the ratchet position, the retained + * epoch window, any staged commit. A client that reads the same traffic + * correctly only because it kept those in memory is not durable, and the + * fault vectors pair a restart with a replayed queue to catch exactly + * that. + */ + private suspend fun restartClient(step: ScenarioVector.Step) { + val client = client(step.string("client") ?: error("restart_client without a client")) + client.manager = buildManager(client) + // A fresh manager knows nothing until it reads its stores — the same + // call `Account` makes at startup. Skipping it would model a client + // that lost its groups, not one that restarted. + client.manager.restoreAll() + } + + /** + * A member departs: a standalone SelfRemove PROPOSAL, not a commit. + * + * The leaver does not advance the group — another authorized member + * commits the proposal — so this queues the proposal for delivery and + * nothing else. It deliberately does not consume a publication outcome: + * the vectors never acknowledge a leave, because there is no commit to + * acknowledge. + */ + private suspend fun leave(step: ScenarioVector.Step) { + val who = client(step.string("client") ?: error("leave without a client")) + val groupId = who.groups[currentGroup] ?: error("${who.name} left a group it is not in") + val proposal = who.manager.leaveGroup(groupId) + inFlight.add(Queued(who.name, proposal.signedEvent, PROPOSAL_CLASS, null)) + who.groups.remove(currentGroup) + } + private suspend fun sendAppMessage(step: ScenarioVector.Step) { val sender = client(step.string("sender") ?: error("send_app_message without a sender")) val groupId = sender.groups[currentGroup] ?: error("${sender.name} sent before joining a group") @@ -499,8 +554,29 @@ class MarmotScenarioRunner( } } + // A standalone proposal advances nothing on its own. The reference + // commits what it staged as part of processing, and so must we — a + // SelfRemove nobody commits leaves the departing member in the tree, + // still reading the group. Only an admin may do it; a non-admin's + // commit would be rejected by every peer. + client.groups.values.forEach { groupId -> + val admins = + client.manager + .groupView(groupId) + ?.adminPubkeys + .orEmpty() + if (client.signer.pubKey in admins) { + runCatching { client.manager.commitPendingProposals(groupId, emptyList()) } + } + } + before.forEach { (groupId, was) -> - client.sawJoin.addAll(membersOf(client, groupId) - was) + val now = membersOf(client, groupId) + client.sawJoin.addAll(now - was) + // A client evicted from the group reads an empty roster, which + // would otherwise look like watching everybody leave at once. It + // did not watch anything: it lost the group. + if (now.isNotEmpty()) client.sawLeave.addAll(was - now) } } @@ -580,11 +656,17 @@ class MarmotScenarioRunner( if (got != want) failures.add("${expected.client} received $got, expected $want") } expected.addedMembers?.let { want -> - val got = client.sawJoin.mapNotNull { pubkey -> clients.values.firstOrNull { it.signer.pubKey == pubkey }?.name } + val got = names(client.sawJoin) if (got.sorted() != want.sorted()) { failures.add("${expected.client} saw $got join, expected $want") } } + expected.removedMembers?.let { want -> + val got = names(client.sawLeave) + if (got.sorted() != want.sorted()) { + failures.add("${expected.client} saw $got leave, expected $want") + } + } } check(failures.isEmpty()) { "vector ${vector.name} diverged from its expected trace:\n " + failures.joinToString("\n ") @@ -593,12 +675,16 @@ class MarmotScenarioRunner( private fun client(name: String) = clients[name] ?: error("vector names a client '$name' that its roster does not list") + /** Client names for a list of pubkeys; the vectors talk about people. */ + private fun names(pubkeys: List) = pubkeys.mapNotNull { key -> clients.values.firstOrNull { it.signer.pubKey == key }?.name } + private companion object { const val CHAT_KIND = 9 /** The two message classes a fault selector distinguishes. */ const val APPLICATION_CLASS = "application" const val COMMIT_CLASS = "commit" + const val PROPOSAL_CLASS = "proposal" /** The label for a vector that never says `in_group` — most of them. */ const val DEFAULT_GROUP = "default" diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt index fbd0b5ed09..f01871e615 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt @@ -117,6 +117,41 @@ class MarmotScenarioVectorTest { @Test fun readdAfterEviction() = replay("readd-after-eviction.v1.json") + /** + * A restart in the middle of a replayed, duplicated, reordered queue. + * Nothing may depend on state that only lived in memory. + */ + @Test + fun restartDeliveryFaults() = replay("restart-delivery-faults.v1.json") + + /** + * `leaver-removal-secrecy` gets most of the way and stops at a narrower + * bug than the one it found. + * + * It surfaced that a departing member's `SelfRemove` was staged, committed, + * and then NOT applied — `MlsGroup.saveState()` does not carry the + * staged-proposal pool, so the staging clone committed an empty proposal + * list, advanced the epoch, and left the leaver in the tree with the keys. + * That is fixed (see `MarmotLeaveProposalTest`), and the committer now + * reaches the expected epoch and membership. + * + * What remains: a PEER that has the same proposal staged does not apply the + * commit carrying it inline — bob stays an epoch behind and cannot read + * what follows. Asserted rather than deleted so it stays visible; the day + * that is fixed this test fails and the vector moves up to [replay]. + */ + @Test + fun aPeerWithTheSameProposalStagedStillMissesTheCommit() { + val thrown = + assertFailsWith { + runBlocking { MarmotScenarioRunner(load("leaver-removal-secrecy.v1.json")).run() } + } + assertTrue( + thrown.message.orEmpty().contains("bob[default] epoch 2, expected 3"), + "the remaining divergence must still be the peer left behind: ${thrown.message}", + ) + } + /** * `convergence-committer-selected` concludes with a `convergence_decision` * — which tip the client picked, under which rule, and whether the witness @@ -189,6 +224,8 @@ class MarmotScenarioVectorTest { "queue-faults.v1.json", "delayed-past-epoch-app-message.v1.json", "readd-after-eviction.v1.json", + "restart-delivery-faults.v1.json", + "leaver-removal-secrecy.v1.json", ) } } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt index 35615f2b9a..7a2f973dd2 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt @@ -106,6 +106,12 @@ class ScenarioVector( val addedMembers: List? = null, /** The group description the vector states, when it states one. */ val groupDescription: String? = null, + /** + * Members this client must have seen LEAVE, by client name. Same + * null-vs-empty distinction as [addedMembers]: an empty list is the + * assertion that nobody left. + */ + val removedMembers: List? = null, ) /** @@ -236,6 +242,9 @@ class ScenarioVector( addedMembers = (obj["added_members"] as? JsonArray) ?.mapNotNull { (it as? JsonPrimitive)?.content }, + removedMembers = + (obj["removed_members"] as? JsonArray) + ?.mapNotNull { (it as? JsonPrimitive)?.content }, ) } } diff --git a/commons/src/jvmTest/resources/marmot/vectors/leaver-removal-secrecy.v1.json b/commons/src/jvmTest/resources/marmot/vectors/leaver-removal-secrecy.v1.json new file mode 100644 index 0000000000..32011dae17 --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/leaver-removal-secrecy.v1.json @@ -0,0 +1,349 @@ +{ + "scenario_name": "leaver-removal-secrecy/v1", + "vector_version": "1", + "conformance_version": "0.9.19", + "seed": null, + "scenario": { + "name": "leaver-removal-secrecy/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "leaver", + "invitees": [ + "bob", + "carol", + "dave" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol", + "dave" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "leaver:pre:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "leaver:pre:bob" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "leaver:pre:carol" + }, + { + "type": "send_app_message", + "sender": "dave", + "payload": "leaver:pre:dave" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ] + }, + { + "type": "remove_members", + "remover": "alice", + "members": [ + "dave" + ], + "pending": "remove-dave" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "remove-dave", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol", + "dave" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "leaver:gap:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "leaver:gap:bob" + }, + { + "type": "send_app_message", + "sender": "carol", + "payload": "leaver:gap:carol" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ] + }, + { + "type": "leave", + "client": "carol" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice" + ] + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol" + ] + }, + { + "type": "send_app_message", + "sender": "alice", + "payload": "leaver:tail:alice" + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "leaver:tail:bob" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice", + "bob", + "carol", + "dave" + ] + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "dave", + "payload": "leaver:gap:alice", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "dave", + "payload": "leaver:gap:bob", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "dave", + "payload": "leaver:gap:carol", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "dave", + "payload": "leaver:tail:alice", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "dave", + "payload": "leaver:tail:bob", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "carol", + "payload": "leaver:tail:alice", + "count": 0 + } + } + }, + { + "type": "assert", + "assertion": { + "mode": "exactly", + "predicate": { + "type": "payload_count", + "client": "carol", + "payload": "leaver:tail:bob", + "count": 0 + } + } + }, + { + "type": "observe_exact", + "clients": [ + "alice", + "bob" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "pending_resolution", + "step_index": 12, + "client": "alice", + "pending": "remove-dave", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "alice", + "epoch": 3, + "member_count": 2, + "received_payloads": [ + "leaver:pre:bob", + "leaver:pre:carol", + "leaver:pre:dave", + "leaver:gap:bob", + "leaver:gap:carol", + "leaver:tail:bob" + ], + "removed_members": [ + "dave", + "carol" + ] + }, + { + "type": "client_state", + "client": "bob", + "epoch": 3, + "member_count": 2, + "received_payloads": [ + "leaver:pre:alice", + "leaver:pre:carol", + "leaver:pre:dave", + "leaver:gap:alice", + "leaver:gap:carol", + "leaver:tail:alice" + ], + "removed_members": [ + "dave", + "carol" + ] + }, + { + "type": "clients_converged", + "clients": [ + "alice", + "bob" + ], + "epoch": 3, + "member_count": 2 + }, + { + "type": "no_pending_work", + "clients": [ + "alice", + "bob" + ] + } + ] +} diff --git a/commons/src/jvmTest/resources/marmot/vectors/restart-delivery-faults.v1.json b/commons/src/jvmTest/resources/marmot/vectors/restart-delivery-faults.v1.json new file mode 100644 index 0000000000..4a9ac3889f --- /dev/null +++ b/commons/src/jvmTest/resources/marmot/vectors/restart-delivery-faults.v1.json @@ -0,0 +1,114 @@ +{ + "scenario_name": "restart-delivery-faults/v1", + "vector_version": "1", + "conformance_version": "0.9.19", + "seed": null, + "scenario": { + "name": "restart-delivery-faults/v1", + "spec_version": "2", + "clients": [ + "alice", + "bob", + "carol" + ], + "steps": [ + { + "type": "create_group", + "creator": "alice", + "name": "restart-delivery-faults", + "invitees": [ + "bob", + "carol" + ], + "required_features": [], + "pending": "create" + }, + { + "type": "acknowledge_outbound", + "client": "alice", + "publication": "create", + "outcome": "accepted" + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "bob", + "carol" + ] + }, + { + "type": "clear_events", + "clients": [ + "alice", + "bob", + "carol" + ] + }, + { + "type": "send_app_message", + "sender": "bob", + "payload": "bob:restart-delivery" + }, + { + "type": "withhold_message", + "selector": { "sender": "bob", "class": "application" }, + "label": "restart-delayed" + }, + { + "type": "restart_client", + "client": "alice" + }, + { + "type": "release_withheld", + "label": "restart-delayed" + }, + { + "type": "duplicate_message", + "selector": { "sender": "bob", "class": "application" } + }, + { + "type": "reorder_messages", + "order": [ + { "sender": "bob", "class": "application", "occurrence": 1 }, + { "sender": "bob", "class": "application" } + ] + }, + { + "type": "deliver_all" + }, + { + "type": "tick", + "clients": [ + "alice" + ] + }, + { + "type": "observe", + "clients": [ + "alice" + ] + } + ] + }, + "expected_outcomes": [ + { + "type": "pending_resolution", + "step_index": 1, + "client": "alice", + "pending": "create", + "resolution": "confirmed" + }, + { + "type": "client_state", + "client": "alice", + "epoch": 1, + "member_count": 3, + "received_payloads": [ + "bob:restart-delivery" + ] + } + ] +} diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index c3057cf5a3..b07b41d133 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -176,6 +176,32 @@ class MlsGroup private constructor( */ internal fun pendingProposalsSnapshot(): List = pendingProposals.toList() + /** + * Whether any proposal is staged and waiting for a Commit. + * + * Public where [pendingProposalsSnapshot] is internal: a caller outside + * this module has no business reading the proposals, but it does need to + * know there is work to commit. A standalone `SelfRemove` from a departing + * member sits here until an authorized member commits it — and until then + * the leaver is still in the tree and still reading the group. + */ + fun hasPendingProposals(): Boolean = pendingProposals.isNotEmpty() + + /** + * Replace this group's staged-proposal pool with [proposals]. + * + * Exists for one reason: [saveState] does NOT serialize the pool, so a + * clone made for staging a commit starts empty, and `commit()` on it + * produces an EMPTY commit — the epoch advances and every proposal the + * commit was meant to apply is silently dropped. A departing member's + * `SelfRemove` is the case that bites: the group looks like it processed + * the departure, and the leaver is still in the tree holding the keys. + */ + internal fun adoptPendingProposals(proposals: List) { + pendingProposals.clear() + pendingProposals.addAll(proposals) + } + /** * The GroupContext extension list as it stands. Test-only: callers * that want the dictionary should use [appDataDictionary], which diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt index 4baec45607..b822e553f0 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt @@ -468,8 +468,28 @@ class MlsGroupManager( } } - /** Stage a self-update / empty Commit. See [StagedCommit]. */ - suspend fun stageCommit(nostrGroupId: HexKey): StagedCommit = stage(nostrGroupId) { it.commit() } + /** Whether [nostrGroupId] has a staged proposal waiting for a Commit. */ + fun hasPendingProposals(nostrGroupId: HexKey): Boolean = groups[nostrGroupId]?.hasPendingProposals() == true + + /** + * Stage a Commit over whatever proposals are already staged. + * + * Unlike every other `stage*` entry point this one has nothing of its own + * to propose — the proposals are already in the LIVE group's pool, put + * there by ingesting a peer's standalone proposal. [MlsGroup.saveState] + * does not carry that pool, so the clone must be handed it explicitly; + * without that this commits an empty proposal list, advances the epoch, + * and drops the very proposal it was called to apply. + */ + suspend fun stageCommit(nostrGroupId: HexKey): StagedCommit = + mutex.withLock { + val live = requireGroup(nostrGroupId) + val priorState = live.saveState() + val clone = MlsGroup.restore(priorState) + clone.adoptPendingProposals(live.pendingProposalsSnapshot()) + val result = clone.commit() + StagedCommit(result, priorState, clone.saveState()) + } /** * Process a received Commit, advancing the epoch. From 5fc9aa9f585e33e1b13f64e692d56ced471cfc68 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 13:22:23 +0000 Subject: [PATCH 52/79] fix(marmot): every member applies the commit that evicts a leaver, and it survives a restart MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Two defects, both found by `leaver-removal-secrecy` and both isolated with a failing test first. Between them a departing member stayed in the tree — holding the group's keys and reading everything sent after they left — while the group believed the departure had been processed. A peer's proposal must be REFERENCED, not inlined -------------------------------------------------- `commit()` inlined every staged proposal, including ones another member authored. An inline proposal carries no sender, so a receiver attributes it to the committer. For a `SelfRemove` that is not cosmetic: the proposal means "remove my leaf", so inlining someone else's says "remove the COMMITTER's leaf". Now only our own proposals go inline; a peer's goes in by `ProposalOrRef.Reference`, which resolves against the receiver's own pool where their copy of the same standalone proposal already sits with the original proposer's leaf index. `PendingProposal.authenticatedContentBytes` documented this contract all along; the code did not implement it. A path-less commit must contribute a ZERO commit secret -------------------------------------------------------- `commit()` derives path secrets unconditionally — it needs them to build the UpdatePath when there is one — and then keyed the commit secret on whether those secrets existed rather than on whether the path was actually SENT. A SelfRemove-only commit omits the path (RFC 9420 §12.4.1), so every receiver used the zero vector while the committer used a derived one: different epoch secrets, and every witness rejected the commit with a confirmation-tag mismatch and fell an epoch behind. The same branch also overwrote `pathPrivateKeys` with keys that were never published, discarding the ones that could still decrypt commits addressed to our ancestors. The pool is an obligation, so it is durable -------------------------------------------- `MlsGroupState` gains `pendingProposals` (STATE_VERSION 4; older blobs decode with an empty pool), and staging a peer's standalone proposal now persists the group the way an epoch change does — it only mutated memory before. Losing the pool to a restart does not lose a message, it loses the obligation: nobody is left holding the proposal that evicts the leaver. That also makes `stageCommit`'s explicit hand-off of the pool redundant, so it goes back to the shared `stage` helper and `adoptPendingProposals` is removed. `leaver-removal-secrecy` now replays instead of asserting its own divergence. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../commons/marmot/MarmotLeaveProposalTest.kt | 118 ++++++++++++++++-- .../scenario/MarmotScenarioVectorTest.kt | 33 ++--- .../quartz/marmot/MarmotInboundProcessor.kt | 10 +- .../quartz/marmot/mls/group/MlsGroup.kt | 64 +++++++--- .../marmot/mls/group/MlsGroupManager.kt | 37 ++++-- .../quartz/marmot/mls/group/MlsGroupState.kt | 52 +++++++- 6 files changed, 247 insertions(+), 67 deletions(-) diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotLeaveProposalTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotLeaveProposalTest.kt index e1847ccc6f..4408021624 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotLeaveProposalTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotLeaveProposalTest.kt @@ -27,6 +27,7 @@ import kotlinx.coroutines.runBlocking import kotlin.test.Test import kotlin.test.assertEquals import kotlin.test.assertIs +import kotlin.test.assertNotNull import kotlin.test.assertTrue /** @@ -44,14 +45,18 @@ class MarmotLeaveProposalTest { private class Fixture { val signer = NostrSignerInternal(KeyPair()) - val manager = - MarmotManager( - signer, - SnapshotStateStore(), - SnapshotMessageStore(), - SnapshotBundleStore(), - publisher = ACCEPTING_RELAY, - ) + val mlsStore = SnapshotStateStore() + val messageStore = SnapshotMessageStore() + val bundleStore = SnapshotBundleStore() + var manager = build() + + private fun build() = MarmotManager(signer, mlsStore, messageStore, bundleStore, publisher = ACCEPTING_RELAY) + + /** Drop the process and come back over the same durable stores. */ + suspend fun restart() { + manager = build() + manager.restoreAll() + } } @Test @@ -96,4 +101,101 @@ class MarmotLeaveProposalTest { "the group's keys and keep reading everything sent after they left", ) } + + @Test + fun `every member applies the commit that evicts the leaver, not just the committer`() = + runBlocking { + // Three members, because the bug only shows with a WITNESS: alice + // commits carol's departure, and bob has to reach the same state + // from the commit alone. + val alice = Fixture() + val bob = Fixture() + val carol = Fixture() + alice.manager.createCurrentProfileGroup( + nostrGroupId = nostrGroupId, + relays = listOf("wss://relay.invalid"), + profile = GroupProfileV1("departures", ""), + ) + + val (commit, welcomes) = + alice.manager.addMembers( + nostrGroupId, + listOf( + bob.manager.generateKeyPackageEvent(relays = emptyList()), + carol.manager.generateKeyPackageEvent(relays = emptyList()), + ), + emptyList(), + ) + welcomes.forEach { delivery -> + when (delivery.recipientPubKey) { + bob.signer.pubKey -> bob.manager.ingest(delivery.giftWrapEvent) + carol.signer.pubKey -> carol.manager.ingest(delivery.giftWrapEvent) + } + } + alice.manager.ingest(commit.signedEvent) + assertEquals(3, alice.manager.memberCount(nostrGroupId)) + + // Carol departs. Her proposal reaches everyone, as it does on the + // wire — it is published as its own group event. + val proposal = carol.manager.leaveGroup(nostrGroupId) + alice.manager.ingest(proposal.signedEvent) + bob.manager.ingest(proposal.signedEvent) + + // Alice, the admin, commits it. + val eviction = alice.manager.commitPendingProposals(nostrGroupId, emptyList()) + assertNotNull(eviction, "the staged SelfRemove must produce a commit") + assertEquals(2, alice.manager.memberCount(nostrGroupId)) + + // Bob applies that commit. He must land exactly where alice is. + bob.manager.ingest(eviction.signedEvent) + + assertEquals( + alice.manager.groupEpoch(nostrGroupId), + bob.manager.groupEpoch(nostrGroupId), + "a witness that stays an epoch behind cannot read anything the group sends next", + ) + assertEquals(2, bob.manager.memberCount(nostrGroupId)) + + // And the right person left. An inline SelfRemove is attributed to + // whoever committed it, so getting this wrong evicts the COMMITTER. + val remaining = + bob.manager + .memberPubkeys(nostrGroupId) + .map { it.pubkey } + .toSet() + assertEquals(setOf(alice.signer.pubKey, bob.signer.pubKey), remaining) + } + + @Test + fun `a staged SelfRemove survives a restart`() = + runBlocking { + val alice = Fixture() + val bob = Fixture() + alice.manager.createCurrentProfileGroup( + nostrGroupId = nostrGroupId, + relays = listOf("wss://relay.invalid"), + profile = GroupProfileV1("durable departures", ""), + ) + val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) + val (commit, welcome) = alice.manager.addMember(nostrGroupId, kp, emptyList()) + bob.manager.ingest(welcome!!.giftWrapEvent) + alice.manager.ingest(commit.signedEvent) + + // Bob departs and alice stages his proposal — then alice's process + // dies before anyone commits it. + alice.manager.ingest(bob.manager.leaveGroup(nostrGroupId).signedEvent) + assertTrue(alice.manager.groupManager.hasPendingProposals(nostrGroupId)) + + alice.restart() + + // The obligation has to come back. Losing it is not losing a + // message — it leaves bob in the tree holding the group's keys, + // with nobody holding the proposal that evicts him. + assertTrue( + alice.manager.groupManager.hasPendingProposals(nostrGroupId), + "a staged SelfRemove must survive a restart, or the leaver never leaves", + ) + assertNotNull(alice.manager.commitPendingProposals(nostrGroupId, emptyList())) + assertEquals(1, alice.manager.memberCount(nostrGroupId)) + } } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt index f01871e615..84b160ddf3 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt @@ -125,32 +125,19 @@ class MarmotScenarioVectorTest { fun restartDeliveryFaults() = replay("restart-delivery-faults.v1.json") /** - * `leaver-removal-secrecy` gets most of the way and stops at a narrower - * bug than the one it found. + * A leaver stops being able to read the group at the commit that evicts + * them — and every OTHER member applies that commit too. * - * It surfaced that a departing member's `SelfRemove` was staged, committed, - * and then NOT applied — `MlsGroup.saveState()` does not carry the - * staged-proposal pool, so the staging clone committed an empty proposal - * list, advanced the epoch, and left the leaver in the tree with the keys. - * That is fixed (see `MarmotLeaveProposalTest`), and the committer now - * reaches the expected epoch and membership. - * - * What remains: a PEER that has the same proposal staged does not apply the - * commit carrying it inline — bob stays an epoch behind and cannot read - * what follows. Asserted rather than deleted so it stays visible; the day - * that is fixed this test fails and the vector moves up to [replay]. + * This vector found two real defects. The staged-proposal pool did not + * travel with the group state, so the commit meant to evict the leaver + * carried an empty proposal list and left them in the tree with the keys. + * And a peer's proposal was inlined into that commit, which attributes it + * to the committer, while the committer derived a path-based commit secret + * for a commit that carries no path — so every witness rejected it and + * fell an epoch behind. */ @Test - fun aPeerWithTheSameProposalStagedStillMissesTheCommit() { - val thrown = - assertFailsWith { - runBlocking { MarmotScenarioRunner(load("leaver-removal-secrecy.v1.json")).run() } - } - assertTrue( - thrown.message.orEmpty().contains("bob[default] epoch 2, expected 3"), - "the remaining divergence must still be the peer left behind: ${thrown.message}", - ) - } + fun leaverRemovalSecrecy() = replay("leaver-removal-secrecy.v1.json") /** * `convergence-committer-selected` concludes with a `convergence_decision` diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt index 4d0c385bf5..c7635b6dc4 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt @@ -666,11 +666,13 @@ class MarmotInboundProcessor( // without this every other member silently dropped the // proposal and the admin's commit then failed with "Commit // references unknown proposal" (marmot-interop test 15). - val group = - groupManager.getGroup(groupId) - ?: return GroupEventResult.Error(groupId, "Group not found") + if (groupManager.getGroup(groupId) == null) { + return GroupEventResult.Error(groupId, "Group not found") + } try { - group.receivePublicMessageProposal(pubMsg) + // Staged AND persisted: the pool is an obligation to + // commit, so it has to outlive this process. + groupManager.receiveStandaloneProposal(groupId, pubMsg) GroupEventResult.ProposalStaged(groupId, pubMsg.sender.leafIndex) } catch (e: Exception) { GroupEventResult.Error( diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt index b07b41d133..2fd8322aae 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroup.kt @@ -187,21 +187,6 @@ class MlsGroup private constructor( */ fun hasPendingProposals(): Boolean = pendingProposals.isNotEmpty() - /** - * Replace this group's staged-proposal pool with [proposals]. - * - * Exists for one reason: [saveState] does NOT serialize the pool, so a - * clone made for staging a commit starts empty, and `commit()` on it - * produces an EMPTY commit — the epoch advances and every proposal the - * commit was meant to apply is silently dropped. A departing member's - * `SelfRemove` is the case that bites: the group looks like it processed - * the departure, and the leaver is still in the tree holding the keys. - */ - internal fun adoptPendingProposals(proposals: List) { - pendingProposals.clear() - pendingProposals.addAll(proposals) - } - /** * The GroupContext extension list as it stands. Test-only: callers * that want the dictionary should use [appDataDictionary], which @@ -337,6 +322,11 @@ class MlsGroup private constructor( // key+nonce within this epoch (RFC 9420 §9). senderRatchetStates = secretTree.exportSenderStates(), pathPrivateKeys = pathPrivateKeys.toMap(), + // A staged proposal is an obligation, not a message: a departing + // member's SelfRemove sits here until someone commits it, and a + // restart that forgot it would leave the leaver in the tree with + // the group's keys and nobody holding the proposal to evict them. + pendingProposals = pendingProposals.toList(), ) } @@ -668,7 +658,27 @@ class MlsGroup private constructor( // `ValidationError(InvalidMembershipTag)`. val preCommitExtensions = groupContext.extensions - val proposalOrRefs = proposals.map { ProposalOrRef.Inline(it.proposal) } + // Inline only what WE authored. A proposal from another member has to + // go in by REFERENCE, because an inline proposal carries no sender: a + // receiving peer attributes it to the committer (see the + // `ProposalOrRef.Inline` branch of `processCommitInner`). For a + // `SelfRemove` that is not a cosmetic difference — the proposal means + // "remove my leaf", so inlining someone else's says "remove the + // committer's leaf", and every witness either evicts the wrong member + // or refuses the commit outright and falls an epoch behind. + // + // A reference resolves against the receiver's own pending pool, which + // is where their copy of the same standalone proposal already sits, + // carrying the ORIGINAL proposer's leaf index. + val proposalOrRefs = + proposals.map { pending -> + if (pending.senderLeafIndex == myLeafIndex) { + ProposalOrRef.Inline(pending.proposal) + } else { + val refValue = pending.authenticatedContentBytes ?: pending.proposal.toTlsBytes() + ProposalOrRef.Reference(MlsCryptoProvider.refHash("MLS 1.0 Proposal Reference", refValue)) + } + } // Check if we need an UpdatePath. RFC 9420 §12.4.1: the path value // MUST be populated if the proposal list is empty (pure forward- @@ -707,7 +717,13 @@ class MlsGroup private constructor( // We just minted the keys for our whole direct path. Keep the private // halves: the next committer will address us at one of these nodes, // not at our leaf, as soon as our subtree is merged. - run { + // + // ONLY when this commit actually carries the path. A commit that omits + // the UpdatePath never publishes these public halves, so the tree keeps + // the old keys and a peer still encrypts to those — storing the fresh + // private halves here would overwrite the ones that can actually + // decrypt the next commit addressed to our ancestors. + if (needsPath && pathSecrets.isNotEmpty()) { val fullPath = BinaryTree.directPath(myLeafIndex, tree.leafCount) pathPrivateKeys.keys.retainAll(fullPath.toSet()) for ((i, nodeIdx) in fullPath.withIndex()) { @@ -890,8 +906,19 @@ class MlsGroup private constructor( // encryption-key seed rather than the key-schedule contribution. That // one-step gap silently diverged the two sides' epoch_secret and made // every cross-impl commit fail `ConfirmationTagMismatch`. + // + // Keyed on whether the commit CARRIES a path, not on whether we happened + // to derive path secrets. RFC 9420 §12.4.2: a commit with no + // `update_path` contributes a zero commit_secret, which is exactly what + // every receiver uses (see the `commit.updatePath != null` branch of + // `processCommitInner`). We derive `pathSecrets` unconditionally to + // build the path when it is needed; using them for the key schedule + // when the path was OMITTED gives the committer an epoch secret nobody + // else can reach, and every member rejects the commit with a + // confirmation-tag mismatch. A SelfRemove-only commit — a departing + // member's eviction — is precisely the case that omits the path. val commitSecret = - if (pathSecrets.isNotEmpty()) { + if (updatePath != null && pathSecrets.isNotEmpty()) { MlsCryptoProvider.deriveSecret(pathSecrets.last().pathSecret, "path") } else { ByteArray(MlsCryptoProvider.HASH_OUTPUT_LENGTH) @@ -4133,6 +4160,7 @@ class MlsGroup private constructor( encryptionPrivateKey = state.encryptionPrivateKey, interimTranscriptHash = state.interimTranscriptHash, pathPrivateKeys = state.pathPrivateKeys.toMutableMap(), + pendingProposals = state.pendingProposals.toMutableList(), ) } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt index b822e553f0..5167974d74 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt @@ -23,6 +23,7 @@ package com.vitorpamplona.quartz.marmot.mls.group import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter import com.vitorpamplona.quartz.marmot.mls.crypto.MlsCryptoProvider +import com.vitorpamplona.quartz.marmot.mls.framing.PublicMessage import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager.Companion.EPOCH_RETENTION_WINDOW import com.vitorpamplona.quartz.marmot.mls.messages.CommitResult import com.vitorpamplona.quartz.marmot.mls.messages.ExternalJoinResult @@ -468,6 +469,24 @@ class MlsGroupManager( } } + /** + * Stage a peer's standalone proposal and PERSIST the group. + * + * Staging alone only mutates memory, and a staged proposal is an + * obligation rather than a message: a departing member's `SelfRemove` sits + * in the pool until someone commits it. Losing it to a restart leaves the + * leaver in the tree, still holding the group's keys, with nobody holding + * the proposal that would evict them — so this writes through the same way + * an epoch change does. + */ + suspend fun receiveStandaloneProposal( + nostrGroupId: HexKey, + pubMsg: PublicMessage, + ) = mutex.withLock { + requireGroup(nostrGroupId).receivePublicMessageProposal(pubMsg) + persistGroup(nostrGroupId) + } + /** Whether [nostrGroupId] has a staged proposal waiting for a Commit. */ fun hasPendingProposals(nostrGroupId: HexKey): Boolean = groups[nostrGroupId]?.hasPendingProposals() == true @@ -476,20 +495,12 @@ class MlsGroupManager( * * Unlike every other `stage*` entry point this one has nothing of its own * to propose — the proposals are already in the LIVE group's pool, put - * there by ingesting a peer's standalone proposal. [MlsGroup.saveState] - * does not carry that pool, so the clone must be handed it explicitly; - * without that this commits an empty proposal list, advances the epoch, - * and drops the very proposal it was called to apply. + * there by ingesting a peer's standalone proposal. That pool travels with + * [MlsGroup.saveState], so the clone inherits it; when it did not, this + * committed an empty proposal list, advanced the epoch, and dropped the + * very proposal it was called to apply. */ - suspend fun stageCommit(nostrGroupId: HexKey): StagedCommit = - mutex.withLock { - val live = requireGroup(nostrGroupId) - val priorState = live.saveState() - val clone = MlsGroup.restore(priorState) - clone.adoptPendingProposals(live.pendingProposalsSnapshot()) - val result = clone.commit() - StagedCommit(result, priorState, clone.saveState()) - } + suspend fun stageCommit(nostrGroupId: HexKey): StagedCommit = stage(nostrGroupId) { it.commit() } /** * Process a received Commit, advancing the epoch. diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupState.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupState.kt index 518631e7fa..f9ad4de9e6 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupState.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupState.kt @@ -23,6 +23,7 @@ package com.vitorpamplona.quartz.marmot.mls.group import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter import com.vitorpamplona.quartz.marmot.mls.messages.GroupContext +import com.vitorpamplona.quartz.marmot.mls.messages.Proposal import com.vitorpamplona.quartz.marmot.mls.schedule.EpochSecrets import com.vitorpamplona.quartz.marmot.mls.schedule.SenderRatchetState @@ -71,6 +72,16 @@ data class MlsGroupState( * across a restart makes the same group undecryptable on relaunch. */ val pathPrivateKeys: Map = emptyMap(), + /** + * Proposals staged but not yet committed (STATE_VERSION 4+). + * + * Mostly this pool holds a departing member's standalone `SelfRemove`, + * waiting for an authorized member to commit it. Dropping it on restart + * does not lose a message — it loses the OBLIGATION: the leaver stays in + * the tree, still holding the group's keys, and nobody is left holding + * the proposal that would evict them. + */ + val pendingProposals: List = emptyList(), ) { fun encodeTls(): ByteArray { val writer = TlsWriter() @@ -133,6 +144,17 @@ data class MlsGroupState( writer.putOpaqueVarInt(key) } + // Staged proposals (STATE_VERSION 4+). The AuthenticatedContent bytes + // travel with each entry because they, not the bare proposal, are what + // a later `ProposalRef` hashes (RFC 9420 §5.2) — a restored pool that + // lost them could no longer be matched by a commit that references it. + writer.putUint32(pendingProposals.size.toLong()) + for (pending in pendingProposals) { + writer.putUint32(pending.senderLeafIndex.toLong()) + writer.putOpaqueVarInt(pending.proposal.toTlsBytes()) + writer.putOpaqueVarInt(pending.authenticatedContentBytes ?: ByteArray(0)) + } + return writer.toByteArray() } @@ -156,8 +178,11 @@ data class MlsGroupState( * v3: appends [pathPrivateKeys] so a restore can still decrypt an * UpdatePath addressed at one of our ancestors. Older blobs decode * with an empty map and refill on the next commit we process. + * v4: appends [pendingProposals] so a departing member's staged + * `SelfRemove` survives a restart instead of leaving them in the + * tree. Older blobs decode with an empty pool. */ - private const val STATE_VERSION = 3 + private const val STATE_VERSION = 4 fun decodeTls(data: ByteArray): MlsGroupState { val reader = TlsReader(data) @@ -234,6 +259,30 @@ data class MlsGroupState( emptyMap() } + // v4+: proposals staged and not yet committed. Absent for older + // blobs, which restore with an empty pool — the same behaviour + // every version before this one had. + val pendingProposals = + if (version >= 4 && reader.hasRemaining) { + val count = reader.readUint32().toInt() + buildList { + repeat(count) { + val senderLeafIndex = reader.readUint32().toInt() + val proposal = Proposal.decodeTls(TlsReader(reader.readOpaqueVarInt())) + val authenticatedContentBytes = reader.readOpaqueVarInt() + add( + PendingProposal( + proposal = proposal, + senderLeafIndex = senderLeafIndex, + authenticatedContentBytes = authenticatedContentBytes.takeIf { it.isNotEmpty() }, + ), + ) + } + } + } else { + emptyList() + } + return MlsGroupState( groupContext = groupContext, treeBytes = treeBytes, @@ -246,6 +295,7 @@ data class MlsGroupState( encryptionSecret = encryptionSecret, senderRatchetStates = senderRatchetStates, pathPrivateKeys = pathPrivateKeys, + pendingProposals = pendingProposals, ) } } From d03cc445f178edca2d125fe67bf3525a15cfdb0e Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 13:22:43 +0000 Subject: [PATCH 53/79] perf(marmot): head-to-head benchmark against MDK, and where our allocation goes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Adds `marmotBench` — the quartz half of a head-to-head against MDK's `cgka-engine --bench group_lifecycle`, case for case: create_group/N, join_welcome, send_app_message, ingest_app_message. Both sides exclude transport crypto, run over in-memory storage, and keep setup outside the measured window, so what is compared is the engine's own CPU cost. Every row also reports BYTES ALLOCATED PER OPERATION, from the JDK's own `ThreadMXBean` — no dependency added. Latency alone cannot answer "are we avoiding GC": a JVM can win a microbenchmark and still hand the user a dropped frame later. The counter is per-thread, so benchmark bodies run inline via `runBlocking` rather than on a dispatcher, where the allocation would go uncounted. First results, same host, nothing else running: operation MDK quartz ratio create_group/1 3.61 ms 16.93 ms 4.7x slower 27 MB/op create_group/8 9.93 ms 51.47 ms 5.2x slower 95 MB/op create_group/32 31.64 ms 190.08 ms 6.0x slower 333 MB/op join_welcome 4.77 ms 6.22 ms 1.3x slower 10 MB/op send_app_message 4.28 ms 1.72 ms 2.5x FASTER 2.8 MB/op So the steady-state path a user actually exercises — sending a message — is already faster than the reference. The gap is concentrated in key-agreement work, and a JFR allocation profile says exactly where: 93% of all allocation samples are `long[]` from `Curve25519Field.mul/add/sub`, which return a freshly allocated field element on every single field operation inside 255-iteration scalar-multiplication loops. That one shape explains both the 5x latency gap and the MB-per-op allocation. The fix (in-place field ops over caller-supplied scratch) is left as its own change so it can be verified against the RFC vectors on its own merits. Note: MDK's `ingest_app_message` has no number here. Their bench binary panics in `bench_deferred_outbound_preflight_matrix` (an assertion on peeler attempts) before reaching it, and criterion's filter does not skip that bench's fixture construction. Reporting the gap rather than inventing a comparison. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- marmotBench/README.md | 62 +++++++ marmotBench/build.gradle.kts | 37 ++++ .../vitorpamplona/marmotbench/BenchResult.kt | 48 +++++ .../com/vitorpamplona/marmotbench/Fixtures.kt | 145 +++++++++++++++ .../com/vitorpamplona/marmotbench/Harness.kt | 70 ++++++++ .../com/vitorpamplona/marmotbench/Main.kt | 72 ++++++++ .../marmotbench/MarmotBenchmarks.kt | 170 ++++++++++++++++++ settings.gradle.kts | 1 + 8 files changed, 605 insertions(+) create mode 100644 marmotBench/README.md create mode 100644 marmotBench/build.gradle.kts create mode 100644 marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/BenchResult.kt create mode 100644 marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Fixtures.kt create mode 100644 marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Harness.kt create mode 100644 marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Main.kt create mode 100644 marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt diff --git a/marmotBench/README.md b/marmotBench/README.md new file mode 100644 index 0000000000..8e6b59294c --- /dev/null +++ b/marmotBench/README.md @@ -0,0 +1,62 @@ +# marmotBench — quartz Marmot vs MDK, head to head + +Measures the same Marmot/MLS operations on both engines so "are we as fast as +the reference" has an answer instead of an opinion. + +The quartz half lives here. The MDK half is its own criterion suite: + +```sh +# quartz +./gradlew :marmotBench:run # table +./gradlew :marmotBench:run --args=--json # machine-readable + +# MDK (the reference) +cd && cargo bench -p cgka-engine --bench group_lifecycle +``` + +## What is compared + +| this module | MDK bench | +|-----------------------|-----------------------------| +| `create_group/N` | `bench_create_group` | +| `join_welcome` | `bench_join_welcome` | +| `send_app_message` | `bench_app_message_send` | +| `ingest_app_message` | `bench_app_message_ingest` | + +Both sides exclude transport crypto and run over in-memory storage, so what is +measured is the engine's own CPU cost. Setup is outside the measured window on +both sides — criterion's `iter_batched(.., PerIteration)` there, an explicit +`setup` lambda here. + +**One shape difference, deliberately not hidden:** MDK folds invitees into the +founding group (`FoundingGroupCreated`), while we create at epoch 0 and add in +a second commit to epoch 1. `create_group/N` therefore includes one more commit +on our side. That is a real cost, and averaging it away would be the wrong kind +of favourable. + +## Why allocation is reported next to latency + +The brief is "as fast if not faster, while avoiding GC as much as possible", +and those are two different measurements. A JVM can win a microbenchmark while +allocating tens of times more per operation; the bill arrives later as GC +pauses on a phone, in a frame the benchmark never renders. So every row carries +**bytes allocated per operation** from `com.sun.management.ThreadMXBean` +(in the JDK — no dependency), alongside p50/p90/p99. + +That counter is per-thread, which is why every benchmark body runs inline on +the harness thread via `runBlocking`. Work dispatched elsewhere would allocate +off-book and read as free. + +The JVM runs with `-XX:+UseSerialGC` on a fixed 4g heap: the point is to keep +allocation attributable to the benchmark thread and to keep a collection from +landing inside a measured sample and corrupting the percentile it falls in. + +## Reading the numbers honestly + +- Rust has no GC, so `alloc/op` has no MDK counterpart. It is not a + head-to-head column — it is our own regression signal, and the number to + drive down. +- Latency across a JVM and a Rust binary on the same host is a fair comparison + of *this* workload on *this* machine. It is not a language benchmark. +- `create_group/32` builds 32 KeyPackages in setup. That cost is excluded, but + it makes each iteration expensive to prepare — hence the low iteration count. diff --git a/marmotBench/build.gradle.kts b/marmotBench/build.gradle.kts new file mode 100644 index 0000000000..69e42dee77 --- /dev/null +++ b/marmotBench/build.gradle.kts @@ -0,0 +1,37 @@ +import org.jetbrains.kotlin.gradle.dsl.JvmTarget + +plugins { + alias(libs.plugins.jetbrainsKotlinJvm) + application +} + +application { + mainClass.set("com.vitorpamplona.marmotbench.MainKt") + applicationName = "marmotbench" + // `-XX:+UseSerialGC` keeps the allocation counter attributable to the + // benchmark thread instead of to background GC worker threads, and a heap + // big enough that a collection never lands mid-measurement. Both matter + // more here than raw throughput: the number we care about is bytes + // allocated per operation, and a GC pause inside a sample corrupts the + // latency percentile it lands in. + applicationDefaultJvmArgs = listOf("-Xmx4g", "-Xms4g", "-XX:+UseSerialGC", "-Dfile.encoding=UTF-8") +} + +kotlin { + jvmToolchain(21) + compilerOptions { + jvmTarget.set(JvmTarget.JVM_21) + } +} + +dependencies { + // The MLS engine and the Marmot codecs under test. + implementation(project(":quartz")) + // MarmotManager — the app-level entry points MDK's engine benches measure. + implementation(project(":commons")) + + implementation(libs.kotlinx.coroutines.core) + + // JNI secp256k1 backend quartz needs at runtime on plain JVM. + runtimeOnly(libs.secp256k1.kmp.jni.jvm) +} diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/BenchResult.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/BenchResult.kt new file mode 100644 index 0000000000..399860b1cb --- /dev/null +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/BenchResult.kt @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.marmotbench + +/** + * One measured operation. + * + * Latency percentiles AND allocation, because the two answer different + * questions and only one of them is visible in a wall-clock number. A JVM that + * allocates 40x per operation can still win a microbenchmark — the cost shows + * up later as GC pauses on a phone, which is exactly what we are trying not to + * ship. + */ +class BenchResult( + val name: String, + val samples: LongArray, + val bytesPerOp: Long, + val iterations: Int, +) { + private fun percentile(p: Double): Long { + val sorted = samples.sortedArray() + val idx = ((sorted.size - 1) * p).toInt().coerceIn(0, sorted.size - 1) + return sorted[idx] + } + + val p50 get() = percentile(0.50) + val p90 get() = percentile(0.90) + val p99 get() = percentile(0.99) + val mean get() = if (samples.isEmpty()) 0L else samples.sum() / samples.size +} diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Fixtures.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Fixtures.kt new file mode 100644 index 0000000000..47a25cc4c1 --- /dev/null +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Fixtures.kt @@ -0,0 +1,145 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.marmotbench + +import com.vitorpamplona.amethyst.commons.marmot.MarmotPublisher +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageBundleStore +import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore +import com.vitorpamplona.quartz.nip01Core.core.Event + +// In-memory stores, matching the commons test doubles byte for byte. +// +// MDK's engine benches run over in-memory SQLite for the same reason: the +// number under test is the engine's own CPU cost, not the disk under it. +// Anything slower here would add storage noise to both sides and hide the +// thing being compared. + +/** Stands in for a relay that accepts every commit, so epochs actually advance. */ +val ACCEPTING_RELAY = MarmotPublisher { _, _ -> true } + +class MemStateStore : MlsGroupStateStore { + private val states = mutableMapOf() + private val retained = mutableMapOf>() + + override suspend fun save( + nostrGroupId: String, + state: ByteArray, + ) { + states[nostrGroupId] = state + } + + override suspend fun load(nostrGroupId: String): ByteArray? = states[nostrGroupId] + + override suspend fun delete(nostrGroupId: String) { + states.remove(nostrGroupId) + retained.remove(nostrGroupId) + } + + override suspend fun listGroups(): List = states.keys.toList() + + override suspend fun saveRetainedEpochs( + nostrGroupId: String, + retainedSecrets: List, + ) { + retained[nostrGroupId] = retainedSecrets + } + + override suspend fun loadRetainedEpochs(nostrGroupId: String): List = retained[nostrGroupId] ?: emptyList() +} + +class MemMessageStore : MarmotMessageStore { + private val messages = mutableMapOf>() + private val snapshots = mutableMapOf() + private val expiries = mutableMapOf>() + private val epochRetentions = mutableMapOf>() + + override suspend fun appendMessage( + nostrGroupId: String, + innerEventJson: String, + ) { + val log = messages.getOrPut(nostrGroupId) { mutableListOf() } + if (innerEventJson !in log) log.add(innerEventJson) + } + + override suspend fun loadMessages(nostrGroupId: String): List = messages[nostrGroupId]?.toList() ?: emptyList() + + override suspend fun delete(nostrGroupId: String) { + messages.remove(nostrGroupId) + snapshots.remove(nostrGroupId) + expiries.remove(nostrGroupId) + epochRetentions.remove(nostrGroupId) + } + + override suspend fun recordGroupSnapshot( + nostrGroupId: String, + snapshotJson: String, + ) { + snapshots[nostrGroupId] = snapshotJson + } + + override suspend fun loadGroupSnapshot(nostrGroupId: String): String? = snapshots[nostrGroupId] + + // Disappearing messages. First write wins, mirroring the durable stores: + // an expiry is pinned to its message's own source epoch and a replay must + // not re-time it. + override suspend fun recordExpiry( + nostrGroupId: String, + innerEventId: String, + expiresAtSecs: Long, + ) { + expiries.getOrPut(nostrGroupId) { mutableMapOf() }.putIfAbsent(innerEventId, expiresAtSecs) + } + + override suspend fun loadExpiries(nostrGroupId: String): Map = expiries[nostrGroupId]?.toMap() ?: emptyMap() + + override suspend fun removeMessages( + nostrGroupId: String, + innerEventIds: Set, + ) { + messages[nostrGroupId]?.removeAll { json -> Event.fromJsonOrNull(json)?.id in innerEventIds } + expiries[nostrGroupId]?.keys?.removeAll(innerEventIds) + } + + override suspend fun recordEpochRetention( + nostrGroupId: String, + epoch: Long, + retentionSecs: Long, + ) { + epochRetentions.getOrPut(nostrGroupId) { mutableMapOf() }.putIfAbsent(epoch, retentionSecs) + } + + override suspend fun loadEpochRetentions(nostrGroupId: String): Map = epochRetentions[nostrGroupId]?.toMap() ?: emptyMap() +} + +class MemBundleStore : KeyPackageBundleStore { + private var snapshot: ByteArray? = null + + override suspend fun save(snapshot: ByteArray) { + this.snapshot = snapshot + } + + override suspend fun load(): ByteArray? = snapshot + + override suspend fun delete() { + snapshot = null + } +} diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Harness.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Harness.kt new file mode 100644 index 0000000000..8e162fcca7 --- /dev/null +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Harness.kt @@ -0,0 +1,70 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.marmotbench + +import java.lang.management.ManagementFactory + +/** + * Bytes this thread has allocated, cumulative. + * + * `com.sun.management.ThreadMXBean` is in the JDK, so measuring GC pressure + * costs no dependency. It counts TLAB allocation for the CALLING thread only, + * which is why every benchmark body runs inline on the harness thread rather + * than on a dispatcher — work handed to a coroutine on another thread would + * allocate off-book and read as free. + */ +private val threadMx = ManagementFactory.getThreadMXBean() as com.sun.management.ThreadMXBean + +private fun allocatedBytes(): Long = threadMx.getThreadAllocatedBytes(Thread.currentThread().threadId()) + +/** + * Run [body] until the numbers stop being about JIT. + * + * `setup` runs OUTSIDE the measured window and its cost is excluded, mirroring + * criterion's `iter_batched` with `BatchSize::PerIteration` — which is what + * MDK's engine benches use, so the two sides measure the same span of work. + */ +fun measure( + name: String, + iterations: Int = 200, + warmup: Int = 50, + setup: () -> S, + body: (S) -> Unit, +): BenchResult { + repeat(warmup) { body(setup()) } + + // A collection here rather than inside the measured window: the harness + // runs SerialGC on a big heap precisely so this is the last one. + System.gc() + Thread.sleep(50) + + val samples = LongArray(iterations) + var allocated = 0L + repeat(iterations) { i -> + val state = setup() + val allocBefore = allocatedBytes() + val start = System.nanoTime() + body(state) + samples[i] = System.nanoTime() - start + allocated += allocatedBytes() - allocBefore + } + return BenchResult(name, samples, allocated / iterations, iterations) +} diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Main.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Main.kt new file mode 100644 index 0000000000..f37a55c4ab --- /dev/null +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Main.kt @@ -0,0 +1,72 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.marmotbench + +import com.vitorpamplona.quartz.utils.Log +import com.vitorpamplona.quartz.utils.LogLevel + +private fun micros(nanos: Long) = nanos / 1000.0 + +private fun kb(bytes: Long) = bytes / 1024.0 + +fun main(args: Array) { + val json = args.contains("--json") + + // Quartz logs at DEBUG by default, and those lines land INSIDE the measured + // window: they cost time, and the string building they do is charged to the + // benchmark thread's allocation counter. Measuring the logger instead of + // the engine would make every number here fiction. + Log.minLevel = LogLevel.ERROR + + val results = allBenchmarks() + + if (json) { + println("[") + results.forEachIndexed { i, r -> + val comma = if (i == results.size - 1) "" else "," + println( + """ {"name":"${r.name}","p50_us":${"%.1f".format(micros(r.p50))},""" + + """"p90_us":${"%.1f".format(micros(r.p90))},"p99_us":${"%.1f".format(micros(r.p99))},""" + + """"mean_us":${"%.1f".format(micros(r.mean))},"bytes_per_op":${r.bytesPerOp},""" + + """"iterations":${r.iterations}}$comma""", + ) + } + println("]") + return + } + + println("quartz Marmot — latency and allocation per operation") + println("(alloc is bytes the operation allocated on the calling thread — GC pressure, not heap footprint)") + println() + println("%-28s %10s %10s %10s %12s".format("benchmark", "p50", "p90", "p99", "alloc/op")) + println("-".repeat(74)) + results.forEach { r -> + println( + "%-28s %9.1fµs %9.1fµs %9.1fµs %10.1f KB".format( + r.name, + micros(r.p50), + micros(r.p90), + micros(r.p99), + kb(r.bytesPerOp), + ), + ) + } +} diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt new file mode 100644 index 0000000000..64f4d61a92 --- /dev/null +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt @@ -0,0 +1,170 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.marmotbench + +import com.vitorpamplona.amethyst.commons.marmot.MarmotManager +import com.vitorpamplona.amethyst.commons.marmot.ingest +import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 +import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageEvent +import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEvent +import com.vitorpamplona.quartz.nip01Core.core.HexKey +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import com.vitorpamplona.quartz.nip59Giftwrap.wraps.GiftWrapEvent +import com.vitorpamplona.quartz.utils.RandomInstance +import kotlinx.coroutines.runBlocking + +/** + * The quartz half of the head-to-head against MDK's + * `cgka-engine --bench group_lifecycle`. + * + * Case for case, the two sides measure the same span of work: MDK's benches + * exclude transport crypto and run over in-memory storage, and so do these. + * Where MDK uses criterion's `iter_batched(.., BatchSize::PerIteration)`, the + * setup here is likewise outside the measured window — otherwise we would be + * timing group construction instead of the operation under test. + * + * Every body runs through `runBlocking` on the harness thread on purpose. The + * allocation counter is per-thread, so work handed to another dispatcher would + * not be counted and the operation would read as cheaper than it is. + */ +class Client( + val name: String, +) { + val signer = NostrSignerInternal(KeyPair()) + val manager = MarmotManager(signer, MemStateStore(), MemMessageStore(), MemBundleStore(), publisher = ACCEPTING_RELAY) +} + +private fun newGroupId(): HexKey = RandomInstance.bytes(32).toHexKey() + +private suspend fun keyPackagesFor(count: Int): Pair, List> { + val invitees = (0 until count).map { Client("invitee-$it") } + return invitees to invitees.map { it.manager.generateKeyPackageEvent(relays = emptyList()) } +} + +/** + * `create_group` with N invitees — MDK's `bench_create_group`. + * + * N Add proposals in ONE commit on both sides, and one Welcome carrying N + * `EncryptedGroupSecrets`. The shapes are not identical and the comparison + * should not pretend otherwise: MDK folds the invitees into the founding + * group (`FoundingGroupCreated`), while we create at epoch 0 and add in a + * second commit to epoch 1. That costs us one extra commit here, which is a + * real difference worth seeing rather than hiding by measuring only the add. + */ +fun benchCreateGroup(invitees: Int): BenchResult = + measure( + name = "create_group/$invitees invitees", + iterations = 30, + warmup = 10, + setup = { + runBlocking { + val alice = Client("alice") + val (_, kps) = keyPackagesFor(invitees) + Triple(alice, kps, newGroupId()) + } + }, + ) { (alice, kps, groupId) -> + runBlocking { + alice.manager.createCurrentProfileGroup( + nostrGroupId = groupId, + relays = listOf("wss://bench.invalid"), + profile = GroupProfileV1("bench", ""), + ) + if (kps.isNotEmpty()) alice.manager.addMembers(groupId, kps, emptyList()) + } + } + +/** `join_welcome` — MDK's `bench_join_welcome`. The invitee's side of the add. */ +fun benchJoinWelcome(): BenchResult = + measure( + name = "join_welcome", + iterations = 50, + warmup = 15, + setup = { + runBlocking { + val alice = Client("alice") + val bob = Client("bob") + val groupId = newGroupId() + alice.manager.createCurrentProfileGroup(groupId, listOf("wss://bench.invalid"), GroupProfileV1("bench", "")) + val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) + val (_, welcome) = alice.manager.addMember(groupId, kp, emptyList()) + bob to welcome!!.giftWrapEvent + } + }, + ) { (bob, wrap) -> + runBlocking { bob.manager.ingest(wrap as GiftWrapEvent) } + } + +/** `send_app_message` — MDK's `bench_app_message_send`. Encrypt + persist. */ +fun benchSendAppMessage(): BenchResult = + measure( + name = "send_app_message", + iterations = 300, + warmup = 100, + setup = { + runBlocking { + val alice = Client("alice") + val groupId = newGroupId() + alice.manager.createCurrentProfileGroup(groupId, listOf("wss://bench.invalid"), GroupProfileV1("bench", "")) + alice to groupId + } + }, + ) { (alice, groupId) -> + runBlocking { alice.manager.buildTextMessage(groupId, PAYLOAD) } + } + +/** `ingest_app_message` — MDK's `bench_app_message_ingest`. Decrypt + persist. */ +fun benchIngestAppMessage(): BenchResult = + measure( + name = "ingest_app_message", + iterations = 200, + warmup = 60, + setup = { + runBlocking { + val alice = Client("alice") + val bob = Client("bob") + val groupId = newGroupId() + alice.manager.createCurrentProfileGroup(groupId, listOf("wss://bench.invalid"), GroupProfileV1("bench", "")) + val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) + val (commit, welcome) = alice.manager.addMember(groupId, kp, emptyList()) + bob.manager.ingest(welcome!!.giftWrapEvent) + alice.manager.ingest(commit.signedEvent) + val sent = alice.manager.buildTextMessage(groupId, PAYLOAD, persistOwn = false) + bob to sent.outbound.signedEvent + } + }, + ) { (bob, event) -> + runBlocking { bob.manager.ingest(event as GroupEvent) } + } + +private const val PAYLOAD = "marmot benchmark payload — the same 64-ish byte body both sides send" + +fun allBenchmarks(): List = + buildList { + // The same invitee counts MDK's `bench_create_group` uses, plus 0 as + // the founding-only baseline, so the rows line up for comparison. + listOf(0, 1, 8, 32).forEach { add(benchCreateGroup(it)) } + add(benchJoinWelcome()) + add(benchSendAppMessage()) + add(benchIngestAppMessage()) + } diff --git a/settings.gradle.kts b/settings.gradle.kts index 4e63b53707..260b92e6e1 100644 --- a/settings.gradle.kts +++ b/settings.gradle.kts @@ -43,5 +43,6 @@ include(":marmotQuic") include(":desktopApp") include(":cli") include(":relayBench") +include(":marmotBench") include(":quic-interop") project(":quic-interop").projectDir = file("quic/interop") From 433371680a6f655dc3cb8fe778ee6006bb4fe88c Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 13:46:54 +0000 Subject: [PATCH 54/79] test(marmot): the state blob is v4 now that it carries staged proposals Persisting the staged-proposal pool moved STATE_VERSION from 3 to 4, but this assertion still pinned 3. It is the only test that reads the version word directly, so nothing else caught it. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt index 080f997502..06cdd51403 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt @@ -173,14 +173,14 @@ class MlsGroupStateTest { val state = group.saveState() val bytes = state.encodeTls() - // First two bytes are the state version (uint16). v3 appends the - // direct-path node private keys; older blobs still decode, so the - // version only ever moves forward when the layout gains a field. + // First two bytes are the state version (uint16). v4 appends the + // staged-proposal pool; older blobs still decode, so the version only + // ever moves forward when the layout gains a field. val reader = com.vitorpamplona.quartz.marmot.mls.codec .TlsReader(bytes) val version = reader.readUint16() - assertEquals(3, version) + assertEquals(4, version) } @Test From 58e684273eff0f647cc28483029b5c4d197c98e4 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 13:47:11 +0000 Subject: [PATCH 55/79] perf(marmot): run Curve25519 scalar multiplication without allocating An allocation profile of the Marmot benchmarks put 93% of every sampled allocation in Curve25519Field.mul/add/sub. The pure-Kotlin field arithmetic returned a fresh LongArray(16) from every operation, and a Montgomery ladder runs ~18 of them per scalar bit across 255 bits, so one X25519 scalar multiplication produced over a megabyte of garbage. Ed25519 was worse: its extended-coordinate point addition needs ten temporaries and a scalar multiplication calls it 512 times. Give each field operation an *Into twin that writes into a caller-owned output and shares one 31-limb accumulator, then rewrite both hot paths around them. The X25519 ladder allocates its eleven-array working set once before the loop and overwrites a/b/c/d in place after their last read; Ed25519 creates a single PointAddScratch per scalar multiplication and reuses it for all 512 additions, including the aliasing doubling step. Every *Into is safe when the output aliases an input, because mulInto fully accumulates into the scratch before it touches the output. The allocating functions stay. They are still used off the hot path, where clarity is worth more than the bytes, and keeping them means the in-place versions can be differentially tested against them. Allocation per operation drops 10x to 80x depending on the benchmark (create_group/0 6958.7 KB to 88.3 KB, ingest_app_message 5640.3 KB to 70.9 KB), reproducing to four significant figures across runs, and p50 latency improves on every row that is not dominated by measurement noise. No behaviour changes: the RFC 7748 and RFC 8032 vector suites, the HPKE tests and the full quartz suite pass unchanged. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- marmotBench/README.md | 48 ++++++++ .../quartz/marmot/mls/crypto/Ed25519.apple.kt | 79 +++++++++---- .../quartz/marmot/mls/crypto/X25519.apple.kt | 69 ++++++----- .../marmot/mls/crypto/Curve25519Field.kt | 108 +++++++++++++++--- .../marmot/mls/crypto/Ed25519.jvmAndroid.kt | 79 +++++++++---- .../marmot/mls/crypto/X25519.jvmAndroid.kt | 69 ++++++----- .../quartz/marmot/mls/crypto/Ed25519.linux.kt | 79 +++++++++---- .../quartz/marmot/mls/crypto/X25519.linux.kt | 70 +++++++----- 8 files changed, 447 insertions(+), 154 deletions(-) diff --git a/marmotBench/README.md b/marmotBench/README.md index 8e6b59294c..0d151b2d57 100644 --- a/marmotBench/README.md +++ b/marmotBench/README.md @@ -60,3 +60,51 @@ landing inside a measured sample and corrupting the percentile it falls in. of *this* workload on *this* machine. It is not a language benchmark. - `create_group/32` builds 32 KeyPackages in setup. That cost is excluded, but it makes each iteration expensive to prepare — hence the low iteration count. + +## Result: eliminating the field-arithmetic allocation + +The first run of this module put **93% of all sampled allocation** (JFR +`jdk.ObjectAllocationSample`) in `Curve25519Field.mul/add/sub`. The pure-Kotlin +Curve25519 returned a fresh `LongArray(16)` from every field operation, and a +Montgomery ladder performs ~18 of them per bit for 255 bits — so a single +X25519 scalar multiplication allocated over a megabyte of garbage. + +Each operation now has an in-place `*Into` twin, and both hot paths (the X25519 +ladder and Ed25519's extended-coordinate point addition) allocate their working +set once and then run allocation-free. See `Curve25519Field`. + +Allocation per operation, before and after. This column reproduces to four +significant figures across runs, so the ratios are real: + +| operation | before | after | reduction | +|---------------------|--------------|-------------|-----------| +| `create_group/0` | 6 958.7 KB | 88.3 KB | 79x | +| `create_group/1` | 27 074.1 KB | 570.5 KB | 47x | +| `create_group/8` | 94 548.6 KB | 3 501.7 KB | 27x | +| `create_group/32` | 333 101.2 KB | 33 216.6 KB | 10x | +| `join_welcome` | 10 331.6 KB | 252.2 KB | 41x | +| `send_app_message` | 2 755.1 KB | 71.6 KB | 38x | +| `ingest_app_message`| 5 640.3 KB | 70.9 KB | 80x | + +Latency improved too, though it is the noisier measurement — two post-rewrite +runs are given so the spread is visible rather than averaged away: + +| operation | p50 before | p50 after (run 1 / run 2) | +|---------------------|------------|---------------------------| +| `create_group/0` | 6 323.7us | 4 184.2 / 3 971.5us | +| `create_group/1` | 16 928.2us | 13 197.2 / 13 574.2us | +| `create_group/8` | 51 470.7us | 43 244.0 / 43 424.7us | +| `create_group/32` | 190 080.0us | 202 261.1 / 172 908.9us | +| `join_welcome` | 6 219.3us | 4 919.5 / 4 991.3us | +| `send_app_message` | 1 720.9us | 1 314.3 / 1 376.0us | +| `ingest_app_message`| 3 114.1us | 2 487.5 / 2 545.6us | + +`create_group/32` is the row to distrust: it has the fewest iterations, and its +two runs disagree by 17% at p50 and by nearly 2x at p99 (400.3ms then 210.4ms). +Read it as "no worse"; the other rows are consistent enough to read as gains. + +Against MDK this closes most of the `create_group` gap — `create_group/1` goes +from 4.7x slower to about 3.7x — without changing a single protocol behaviour: +the RFC 7748 / RFC 8032 vector suites, the HPKE tests and the full 4833-test +quartz suite all pass unchanged, which is the point of keeping the allocating +functions around to differentially test against. diff --git a/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.apple.kt b/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.apple.kt index 629e54a01d..6f6d950d46 100644 --- a/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.apple.kt +++ b/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.apple.kt @@ -179,34 +179,69 @@ actual object Ed25519 { p[2].copyOf(), p[3].copyOf(), ) - addPointInPlace(result, q) + addPointInPlace(result, q, PointAddScratch()) return result } + /** + * Scratch for [addPointInPlace]. + * + * Extended-coordinate addition needs ten temporary field elements, and a + * scalar multiplication calls it 512 times — twice per scalar bit. Making + * each call allocate its own was the single largest source of garbage in + * the MLS stack: an allocation profile put 93% of all sampled allocation + * in `Curve25519Field.mul/add/sub`, most of it reached from here. + * + * One instance is created per scalar multiplication and reused by every + * step, so the loop allocates nothing. + */ + private class PointAddScratch { + val a = LongArray(16) + val b = LongArray(16) + val c = LongArray(16) + val d = LongArray(16) + val e = LongArray(16) + val f = LongArray(16) + val g = LongArray(16) + val h = LongArray(16) + val t1 = LongArray(16) + val t2 = LongArray(16) + + /** The 31-limb accumulator every [Curve25519Field.mulInto] here shares. */ + val mulT = LongArray(31) + } + /** In-place point addition: p += q. */ private fun addPointInPlace( p: Array, q: Array, + s: PointAddScratch, ) { - val a = Curve25519Field.sub(p[1], p[0]) - val t = Curve25519Field.sub(q[1], q[0]) - val aMul = Curve25519Field.mul(a, t) - val b = Curve25519Field.add(p[0], p[1]) - val t2 = Curve25519Field.add(q[0], q[1]) - val bMul = Curve25519Field.mul(b, t2) - val c = Curve25519Field.mul(p[3], q[3]) - val cMul = Curve25519Field.mul(c, Curve25519Field.D2) - val d = Curve25519Field.mul(p[2], q[2]) - val dAdd = Curve25519Field.add(d, d) - val e = Curve25519Field.sub(bMul, aMul) - val f = Curve25519Field.sub(dAdd, cMul) - val g = Curve25519Field.add(dAdd, cMul) - val h = Curve25519Field.add(bMul, aMul) + // Every read of p and q happens in this first block. `scalarMult` + // doubles by passing the same point as both arguments, so nothing may + // be written back until these are done. + Curve25519Field.subInto(s.a, p[1], p[0]) + Curve25519Field.subInto(s.t1, q[1], q[0]) + Curve25519Field.mulInto(s.a, s.a, s.t1, s.mulT) + Curve25519Field.addInto(s.b, p[0], p[1]) + Curve25519Field.addInto(s.t2, q[0], q[1]) + Curve25519Field.mulInto(s.b, s.b, s.t2, s.mulT) + Curve25519Field.mulInto(s.c, p[3], q[3], s.mulT) + Curve25519Field.mulInto(s.c, s.c, Curve25519Field.D2, s.mulT) + Curve25519Field.mulInto(s.d, p[2], q[2], s.mulT) + Curve25519Field.addInto(s.d, s.d, s.d) - Curve25519Field.mul(e, f).copyInto(p[0]) - Curve25519Field.mul(h, g).copyInto(p[1]) - Curve25519Field.mul(g, f).copyInto(p[2]) - Curve25519Field.mul(e, h).copyInto(p[3]) + Curve25519Field.subInto(s.e, s.b, s.a) + Curve25519Field.subInto(s.f, s.d, s.c) + Curve25519Field.addInto(s.g, s.d, s.c) + Curve25519Field.addInto(s.h, s.b, s.a) + + // Safe to write p now: e, f, g and h are scratch, so no later product + // reads anything we are about to overwrite. + Curve25519Field.mulInto(p[0], s.e, s.f, s.mulT) + Curve25519Field.mulInto(p[1], s.h, s.g, s.mulT) + Curve25519Field.mulInto(p[2], s.g, s.f, s.mulT) + Curve25519Field.mulInto(p[3], s.e, s.h, s.mulT) } /** Point doubling (self-addition). */ @@ -235,11 +270,13 @@ actual object Ed25519 { p[2].copyOf(), p[3].copyOf(), ) + // One workspace for all 512 additions below. + val scratch = PointAddScratch() for (i in 255 downTo 0) { val b = ((s[i shr 3].toInt() shr (i and 7)) and 1).toLong() cswap(result, q, b) - addPointInPlace(q, result) - addPointInPlace(result, result) + addPointInPlace(q, result, scratch) + addPointInPlace(result, result, scratch) cswap(result, q, b) } return result diff --git a/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.apple.kt b/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.apple.kt index e08b01ccd9..1625e6b4f4 100644 --- a/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.apple.kt +++ b/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.apple.kt @@ -81,45 +81,62 @@ actual object X25519 { val c = Curve25519Field.GF0.copyOf() val d = Curve25519Field.GF1.copyOf() + // The ladder's entire working set, allocated ONCE. Every field + // operation in the loop writes into one of these, so 255 iterations + // allocate nothing at all — where the allocating form produced a fresh + // element per operation, about 1.3 MB of garbage per call. + val e = LongArray(16) + val f = LongArray(16) + val g = LongArray(16) + val h = LongArray(16) + val dd = LongArray(16) + val ff = LongArray(16) + val da = LongArray(16) + val cb = LongArray(16) + val cc = LongArray(16) + val tmp = LongArray(16) + val t = LongArray(31) + for (i in 254 downTo 0) { val r = ((z[i shr 3].toLong() shr (i and 7)) and 1) Curve25519Field.sel25519(a, b, r) Curve25519Field.sel25519(c, d, r) - val e = Curve25519Field.add(a, c) - val aMc = Curve25519Field.sub(a, c) - val f = Curve25519Field.add(b, d) - val bMd = Curve25519Field.sub(b, d) + // a, b, c and d are read only by these four lines; from here on + // they are dead and can be overwritten with the new values. + Curve25519Field.addInto(e, a, c) + Curve25519Field.subInto(g, a, c) + Curve25519Field.addInto(f, b, d) + Curve25519Field.subInto(h, b, d) - val dd = Curve25519Field.sqr(e) - val ff = Curve25519Field.sqr(aMc) - val da = Curve25519Field.mul(bMd, e) - val cb = Curve25519Field.mul(f, aMc) + Curve25519Field.sqrInto(dd, e, t) + Curve25519Field.sqrInto(ff, g, t) + Curve25519Field.mulInto(da, h, e, t) + Curve25519Field.mulInto(cb, f, g, t) - val ePrime = Curve25519Field.add(da, cb) - val aPrime = Curve25519Field.sub(da, cb) + // e := da + cb and g := da - cb. Reusing e and g is safe: both + // held inputs to the four products above, which are now computed. + Curve25519Field.addInto(e, da, cb) + Curve25519Field.subInto(g, da, cb) - val bNew = Curve25519Field.sqr(ePrime) - val aSqr = Curve25519Field.sqr(aPrime) - val dNew = Curve25519Field.mul(aSqr, x) + Curve25519Field.sqrInto(b, e, t) + Curve25519Field.sqrInto(g, g, t) + Curve25519Field.mulInto(d, g, x, t) - val aNew = Curve25519Field.mul(dd, ff) - val cc = Curve25519Field.sub(dd, ff) - val tmp = Curve25519Field.mul(cc, Curve25519Field.A24) - val ddPlusTmp = Curve25519Field.add(dd, tmp) - val cNew = Curve25519Field.mul(cc, ddPlusTmp) - - aNew.copyInto(a) - bNew.copyInto(b) - cNew.copyInto(c) - dNew.copyInto(d) + Curve25519Field.mulInto(a, dd, ff, t) + Curve25519Field.subInto(cc, dd, ff) + Curve25519Field.mulInto(tmp, cc, Curve25519Field.A24, t) + Curve25519Field.addInto(tmp, dd, tmp) + Curve25519Field.mulInto(c, cc, tmp, t) Curve25519Field.sel25519(a, b, r) Curve25519Field.sel25519(c, d, r) } - val invC = Curve25519Field.inv25519(c) - val result = Curve25519Field.mul(a, invC) - return Curve25519Field.pack25519(result) + // c := 1/c, then a := a/c. `tmp` is free again and serves as the + // inversion's scratch element. + Curve25519Field.inv25519Into(c, c, tmp, t) + Curve25519Field.mulInto(a, a, c, t) + return Curve25519Field.pack25519(a) } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Curve25519Field.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Curve25519Field.kt index b36ad70326..45e05975f0 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Curve25519Field.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Curve25519Field.kt @@ -195,58 +195,139 @@ internal object Curve25519Field { return o } + // Allocating vs in-place. + // + // Each `add`/`sub`/`mul`/`sqr` below returns a NEW field element, which + // reads well and is what the TweetNaCl reference does. Inside a scalar + // multiplication it is also ~1.3 MB of garbage per call: a Montgomery + // ladder runs 255 iterations of ten muls and eight add/subs, and every one + // of them allocated. An allocation profile of the Marmot benchmarks put + // 93% of ALL sampled allocation in these three functions. + // + // So each one has an `*Into` twin that writes into a caller-owned output. + // The hot paths (X25519 and Ed25519 scalar multiplication) allocate + // their working set once and then run allocation-free. + // + // Both forms stay: the allocating ones are used off the hot path, where + // the clarity is worth more than the bytes, and keeping them means the + // in-place versions can be differentially tested against them. + // + // Every `*Into` is safe when the output aliases an input — the ladder + // relies on that. + /** Field addition: o = a + b. */ fun add( a: LongArray, b: LongArray, ): LongArray { val o = LongArray(16) - for (i in 0 until 16) o[i] = a[i] + b[i] + addInto(o, a, b) return o } + /** Field addition into [o]. Safe when [o] aliases [a] or [b]. */ + fun addInto( + o: LongArray, + a: LongArray, + b: LongArray, + ) { + for (i in 0 until 16) o[i] = a[i] + b[i] + } + /** Field subtraction: o = a - b. */ fun sub( a: LongArray, b: LongArray, ): LongArray { val o = LongArray(16) - for (i in 0 until 16) o[i] = a[i] - b[i] + subInto(o, a, b) return o } + /** Field subtraction into [o]. Safe when [o] aliases [a] or [b]. */ + fun subInto( + o: LongArray, + a: LongArray, + b: LongArray, + ) { + for (i in 0 until 16) o[i] = a[i] - b[i] + } + /** Field multiplication: o = a * b (mod p). */ fun mul( a: LongArray, b: LongArray, ): LongArray { - val t = LongArray(31) + val o = LongArray(16) + mulInto(o, a, b, LongArray(31)) + return o + } + + /** + * Field multiplication into [o], using [t] as the 31-limb accumulator. + * + * [t] is caller-owned so a loop can reuse one across thousands of calls; + * it is zeroed here, so callers never have to. Safe when [o] aliases [a] + * or [b]: the product is fully accumulated in [t] before [o] is touched. + */ + fun mulInto( + o: LongArray, + a: LongArray, + b: LongArray, + t: LongArray, + ) { + t.fill(0L) for (i in 0 until 16) { + val ai = a[i] for (j in 0 until 16) { - t[i + j] += a[i] * b[j] + t[i + j] += ai * b[j] } } for (i in 0 until 15) { t[i] += 38 * t[i + 16] } - val o = LongArray(16) for (i in 0 until 16) o[i] = t[i] car25519(o) car25519(o) - return o } /** Field squaring: o = a^2 (mod p). */ fun sqr(a: LongArray): LongArray = mul(a, a) + /** Field squaring into [o]. See [mulInto] for the [t] contract. */ + fun sqrInto( + o: LongArray, + a: LongArray, + t: LongArray, + ) = mulInto(o, a, a, t) + /** Field inversion: o = a^(-1) (mod p) using Fermat's little theorem. */ fun inv25519(a: LongArray): LongArray { - var c = a.copyOf() + val o = LongArray(16) + inv25519Into(o, a, LongArray(16), LongArray(31)) + return o + } + + /** + * Field inversion into [o], allocation-free. + * + * 254 squarings and ~250 multiplications, which is why this one matters: + * on the allocating path it was the single largest contributor after the + * ladder itself. [c] is a scratch field element and [t] the [mulInto] + * accumulator; [o] may alias [a]. + */ + fun inv25519Into( + o: LongArray, + a: LongArray, + c: LongArray, + t: LongArray, + ) { + a.copyInto(c) for (i in 253 downTo 0) { - c = sqr(c) - if (i != 2 && i != 4) c = mul(c, a) + sqrInto(c, c, t) + if (i != 2 && i != 4) mulInto(c, c, a, t) } - return c + c.copyInto(o) } /** Parity of a field element (lowest bit after reduction). */ @@ -257,10 +338,11 @@ internal object Curve25519Field { /** Raise a field element to the power (2^252 - 3), used in sqrt. */ fun pow2523(a: LongArray): LongArray { - var c = a.copyOf() + val c = a.copyOf() + val t = LongArray(31) for (i in 250 downTo 0) { - c = sqr(c) - if (i != 1) c = mul(c, a) + sqrInto(c, c, t) + if (i != 1) mulInto(c, c, a, t) } return c } diff --git a/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.jvmAndroid.kt b/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.jvmAndroid.kt index 752c490a56..028eddef0a 100644 --- a/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.jvmAndroid.kt +++ b/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.jvmAndroid.kt @@ -155,33 +155,68 @@ actual object Ed25519 { p[2].copyOf(), p[3].copyOf(), ) - addPointInPlace(result, q) + addPointInPlace(result, q, PointAddScratch()) return result } + /** + * Scratch for [addPointInPlace]. + * + * Extended-coordinate addition needs ten temporary field elements, and a + * scalar multiplication calls it 512 times — twice per scalar bit. Making + * each call allocate its own was the single largest source of garbage in + * the MLS stack: an allocation profile put 93% of all sampled allocation + * in `Curve25519Field.mul/add/sub`, most of it reached from here. + * + * One instance is created per scalar multiplication and reused by every + * step, so the loop allocates nothing. + */ + private class PointAddScratch { + val a = LongArray(16) + val b = LongArray(16) + val c = LongArray(16) + val d = LongArray(16) + val e = LongArray(16) + val f = LongArray(16) + val g = LongArray(16) + val h = LongArray(16) + val t1 = LongArray(16) + val t2 = LongArray(16) + + /** The 31-limb accumulator every [Curve25519Field.mulInto] here shares. */ + val mulT = LongArray(31) + } + private fun addPointInPlace( p: Array, q: Array, + s: PointAddScratch, ) { - val a = Curve25519Field.sub(p[1], p[0]) - val t = Curve25519Field.sub(q[1], q[0]) - val aMul = Curve25519Field.mul(a, t) - val b = Curve25519Field.add(p[0], p[1]) - val t2 = Curve25519Field.add(q[0], q[1]) - val bMul = Curve25519Field.mul(b, t2) - val c = Curve25519Field.mul(p[3], q[3]) - val cMul = Curve25519Field.mul(c, Curve25519Field.D2) - val d = Curve25519Field.mul(p[2], q[2]) - val dAdd = Curve25519Field.add(d, d) - val e = Curve25519Field.sub(bMul, aMul) - val f = Curve25519Field.sub(dAdd, cMul) - val g = Curve25519Field.add(dAdd, cMul) - val h = Curve25519Field.add(bMul, aMul) + // Every read of p and q happens in this first block. `scalarMult` + // doubles by passing the same point as both arguments, so nothing may + // be written back until these are done. + Curve25519Field.subInto(s.a, p[1], p[0]) + Curve25519Field.subInto(s.t1, q[1], q[0]) + Curve25519Field.mulInto(s.a, s.a, s.t1, s.mulT) + Curve25519Field.addInto(s.b, p[0], p[1]) + Curve25519Field.addInto(s.t2, q[0], q[1]) + Curve25519Field.mulInto(s.b, s.b, s.t2, s.mulT) + Curve25519Field.mulInto(s.c, p[3], q[3], s.mulT) + Curve25519Field.mulInto(s.c, s.c, Curve25519Field.D2, s.mulT) + Curve25519Field.mulInto(s.d, p[2], q[2], s.mulT) + Curve25519Field.addInto(s.d, s.d, s.d) - Curve25519Field.mul(e, f).copyInto(p[0]) - Curve25519Field.mul(h, g).copyInto(p[1]) - Curve25519Field.mul(g, f).copyInto(p[2]) - Curve25519Field.mul(e, h).copyInto(p[3]) + Curve25519Field.subInto(s.e, s.b, s.a) + Curve25519Field.subInto(s.f, s.d, s.c) + Curve25519Field.addInto(s.g, s.d, s.c) + Curve25519Field.addInto(s.h, s.b, s.a) + + // Safe to write p now: e, f, g and h are scratch, so no later product + // reads anything we are about to overwrite. + Curve25519Field.mulInto(p[0], s.e, s.f, s.mulT) + Curve25519Field.mulInto(p[1], s.h, s.g, s.mulT) + Curve25519Field.mulInto(p[2], s.g, s.f, s.mulT) + Curve25519Field.mulInto(p[3], s.e, s.h, s.mulT) } private fun negatePoint(p: Array): Array { @@ -205,11 +240,13 @@ actual object Ed25519 { p[2].copyOf(), p[3].copyOf(), ) + // One workspace for all 512 additions below. + val scratch = PointAddScratch() for (i in 255 downTo 0) { val b = ((s[i shr 3].toInt() shr (i and 7)) and 1).toLong() cswap(result, q, b) - addPointInPlace(q, result) - addPointInPlace(result, result) + addPointInPlace(q, result, scratch) + addPointInPlace(result, result, scratch) cswap(result, q, b) } return result diff --git a/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.jvmAndroid.kt b/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.jvmAndroid.kt index ab4b69b788..3caeab777f 100644 --- a/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.jvmAndroid.kt +++ b/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.jvmAndroid.kt @@ -83,45 +83,62 @@ actual object X25519 { val c = Curve25519Field.GF0.copyOf() val d = Curve25519Field.GF1.copyOf() + // The ladder's entire working set, allocated ONCE. Every field + // operation in the loop writes into one of these, so 255 iterations + // allocate nothing at all — where the allocating form produced a fresh + // element per operation, about 1.3 MB of garbage per call. + val e = LongArray(16) + val f = LongArray(16) + val g = LongArray(16) + val h = LongArray(16) + val dd = LongArray(16) + val ff = LongArray(16) + val da = LongArray(16) + val cb = LongArray(16) + val cc = LongArray(16) + val tmp = LongArray(16) + val t = LongArray(31) + for (i in 254 downTo 0) { val r = ((z[i shr 3].toLong() shr (i and 7)) and 1) Curve25519Field.sel25519(a, b, r) Curve25519Field.sel25519(c, d, r) - val e = Curve25519Field.add(a, c) - val aMc = Curve25519Field.sub(a, c) - val f = Curve25519Field.add(b, d) - val bMd = Curve25519Field.sub(b, d) + // a, b, c and d are read only by these four lines; from here on + // they are dead and can be overwritten with the new values. + Curve25519Field.addInto(e, a, c) + Curve25519Field.subInto(g, a, c) + Curve25519Field.addInto(f, b, d) + Curve25519Field.subInto(h, b, d) - val dd = Curve25519Field.sqr(e) - val ff = Curve25519Field.sqr(aMc) - val da = Curve25519Field.mul(bMd, e) - val cb = Curve25519Field.mul(f, aMc) + Curve25519Field.sqrInto(dd, e, t) + Curve25519Field.sqrInto(ff, g, t) + Curve25519Field.mulInto(da, h, e, t) + Curve25519Field.mulInto(cb, f, g, t) - val ePrime = Curve25519Field.add(da, cb) - val aPrime = Curve25519Field.sub(da, cb) + // e := da + cb and g := da - cb. Reusing e and g is safe: both + // held inputs to the four products above, which are now computed. + Curve25519Field.addInto(e, da, cb) + Curve25519Field.subInto(g, da, cb) - val bNew = Curve25519Field.sqr(ePrime) - val aSqr = Curve25519Field.sqr(aPrime) - val dNew = Curve25519Field.mul(aSqr, x) + Curve25519Field.sqrInto(b, e, t) + Curve25519Field.sqrInto(g, g, t) + Curve25519Field.mulInto(d, g, x, t) - val aNew = Curve25519Field.mul(dd, ff) - val cc = Curve25519Field.sub(dd, ff) - val tmp = Curve25519Field.mul(cc, Curve25519Field.A24) - val ddPlusTmp = Curve25519Field.add(dd, tmp) - val cNew = Curve25519Field.mul(cc, ddPlusTmp) - - aNew.copyInto(a) - bNew.copyInto(b) - cNew.copyInto(c) - dNew.copyInto(d) + Curve25519Field.mulInto(a, dd, ff, t) + Curve25519Field.subInto(cc, dd, ff) + Curve25519Field.mulInto(tmp, cc, Curve25519Field.A24, t) + Curve25519Field.addInto(tmp, dd, tmp) + Curve25519Field.mulInto(c, cc, tmp, t) Curve25519Field.sel25519(a, b, r) Curve25519Field.sel25519(c, d, r) } - val invC = Curve25519Field.inv25519(c) - val result = Curve25519Field.mul(a, invC) - return Curve25519Field.pack25519(result) + // c := 1/c, then a := a/c. `tmp` is free again and serves as the + // inversion's scratch element. + Curve25519Field.inv25519Into(c, c, tmp, t) + Curve25519Field.mulInto(a, a, c, t) + return Curve25519Field.pack25519(a) } } diff --git a/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.linux.kt b/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.linux.kt index 6339974e9d..1475607b2f 100644 --- a/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.linux.kt +++ b/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.linux.kt @@ -155,33 +155,68 @@ actual object Ed25519 { p[2].copyOf(), p[3].copyOf(), ) - addPointInPlace(result, q) + addPointInPlace(result, q, PointAddScratch()) return result } + /** + * Scratch for [addPointInPlace]. + * + * Extended-coordinate addition needs ten temporary field elements, and a + * scalar multiplication calls it 512 times — twice per scalar bit. Making + * each call allocate its own was the single largest source of garbage in + * the MLS stack: an allocation profile put 93% of all sampled allocation + * in `Curve25519Field.mul/add/sub`, most of it reached from here. + * + * One instance is created per scalar multiplication and reused by every + * step, so the loop allocates nothing. + */ + private class PointAddScratch { + val a = LongArray(16) + val b = LongArray(16) + val c = LongArray(16) + val d = LongArray(16) + val e = LongArray(16) + val f = LongArray(16) + val g = LongArray(16) + val h = LongArray(16) + val t1 = LongArray(16) + val t2 = LongArray(16) + + /** The 31-limb accumulator every [Curve25519Field.mulInto] here shares. */ + val mulT = LongArray(31) + } + private fun addPointInPlace( p: Array, q: Array, + s: PointAddScratch, ) { - val a = Curve25519Field.sub(p[1], p[0]) - val t = Curve25519Field.sub(q[1], q[0]) - val aMul = Curve25519Field.mul(a, t) - val b = Curve25519Field.add(p[0], p[1]) - val t2 = Curve25519Field.add(q[0], q[1]) - val bMul = Curve25519Field.mul(b, t2) - val c = Curve25519Field.mul(p[3], q[3]) - val cMul = Curve25519Field.mul(c, Curve25519Field.D2) - val d = Curve25519Field.mul(p[2], q[2]) - val dAdd = Curve25519Field.add(d, d) - val e = Curve25519Field.sub(bMul, aMul) - val f = Curve25519Field.sub(dAdd, cMul) - val g = Curve25519Field.add(dAdd, cMul) - val h = Curve25519Field.add(bMul, aMul) + // Every read of p and q happens in this first block. `scalarMult` + // doubles by passing the same point as both arguments, so nothing may + // be written back until these are done. + Curve25519Field.subInto(s.a, p[1], p[0]) + Curve25519Field.subInto(s.t1, q[1], q[0]) + Curve25519Field.mulInto(s.a, s.a, s.t1, s.mulT) + Curve25519Field.addInto(s.b, p[0], p[1]) + Curve25519Field.addInto(s.t2, q[0], q[1]) + Curve25519Field.mulInto(s.b, s.b, s.t2, s.mulT) + Curve25519Field.mulInto(s.c, p[3], q[3], s.mulT) + Curve25519Field.mulInto(s.c, s.c, Curve25519Field.D2, s.mulT) + Curve25519Field.mulInto(s.d, p[2], q[2], s.mulT) + Curve25519Field.addInto(s.d, s.d, s.d) - Curve25519Field.mul(e, f).copyInto(p[0]) - Curve25519Field.mul(h, g).copyInto(p[1]) - Curve25519Field.mul(g, f).copyInto(p[2]) - Curve25519Field.mul(e, h).copyInto(p[3]) + Curve25519Field.subInto(s.e, s.b, s.a) + Curve25519Field.subInto(s.f, s.d, s.c) + Curve25519Field.addInto(s.g, s.d, s.c) + Curve25519Field.addInto(s.h, s.b, s.a) + + // Safe to write p now: e, f, g and h are scratch, so no later product + // reads anything we are about to overwrite. + Curve25519Field.mulInto(p[0], s.e, s.f, s.mulT) + Curve25519Field.mulInto(p[1], s.h, s.g, s.mulT) + Curve25519Field.mulInto(p[2], s.g, s.f, s.mulT) + Curve25519Field.mulInto(p[3], s.e, s.h, s.mulT) } private fun negatePoint(p: Array): Array { @@ -205,11 +240,13 @@ actual object Ed25519 { p[2].copyOf(), p[3].copyOf(), ) + // One workspace for all 512 additions below. + val scratch = PointAddScratch() for (i in 255 downTo 0) { val b = ((s[i shr 3].toInt() shr (i and 7)) and 1).toLong() cswap(result, q, b) - addPointInPlace(q, result) - addPointInPlace(result, result) + addPointInPlace(q, result, scratch) + addPointInPlace(result, result, scratch) cswap(result, q, b) } return result diff --git a/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.linux.kt b/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.linux.kt index 90d78f9955..ed0d6a7ffa 100644 --- a/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.linux.kt +++ b/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.linux.kt @@ -68,6 +68,7 @@ actual object X25519 { p: ByteArray, ): ByteArray { val z = n.copyOf() + // Clamp scalar per RFC 7748 Section 5 z[0] = (z[0].toInt() and 248).toByte() z[31] = ((z[31].toInt() and 127) or 64).toByte() @@ -77,45 +78,62 @@ actual object X25519 { val c = Curve25519Field.GF0.copyOf() val d = Curve25519Field.GF1.copyOf() + // The ladder's entire working set, allocated ONCE. Every field + // operation in the loop writes into one of these, so 255 iterations + // allocate nothing at all — where the allocating form produced a fresh + // element per operation, about 1.3 MB of garbage per call. + val e = LongArray(16) + val f = LongArray(16) + val g = LongArray(16) + val h = LongArray(16) + val dd = LongArray(16) + val ff = LongArray(16) + val da = LongArray(16) + val cb = LongArray(16) + val cc = LongArray(16) + val tmp = LongArray(16) + val t = LongArray(31) + for (i in 254 downTo 0) { val r = ((z[i shr 3].toLong() shr (i and 7)) and 1) Curve25519Field.sel25519(a, b, r) Curve25519Field.sel25519(c, d, r) - val e = Curve25519Field.add(a, c) - val aMc = Curve25519Field.sub(a, c) - val f = Curve25519Field.add(b, d) - val bMd = Curve25519Field.sub(b, d) + // a, b, c and d are read only by these four lines; from here on + // they are dead and can be overwritten with the new values. + Curve25519Field.addInto(e, a, c) + Curve25519Field.subInto(g, a, c) + Curve25519Field.addInto(f, b, d) + Curve25519Field.subInto(h, b, d) - val dd = Curve25519Field.sqr(e) - val ff = Curve25519Field.sqr(aMc) - val da = Curve25519Field.mul(bMd, e) - val cb = Curve25519Field.mul(f, aMc) + Curve25519Field.sqrInto(dd, e, t) + Curve25519Field.sqrInto(ff, g, t) + Curve25519Field.mulInto(da, h, e, t) + Curve25519Field.mulInto(cb, f, g, t) - val ePrime = Curve25519Field.add(da, cb) - val aPrime = Curve25519Field.sub(da, cb) + // e := da + cb and g := da - cb. Reusing e and g is safe: both + // held inputs to the four products above, which are now computed. + Curve25519Field.addInto(e, da, cb) + Curve25519Field.subInto(g, da, cb) - val bNew = Curve25519Field.sqr(ePrime) - val aSqr = Curve25519Field.sqr(aPrime) - val dNew = Curve25519Field.mul(aSqr, x) + Curve25519Field.sqrInto(b, e, t) + Curve25519Field.sqrInto(g, g, t) + Curve25519Field.mulInto(d, g, x, t) - val aNew = Curve25519Field.mul(dd, ff) - val cc = Curve25519Field.sub(dd, ff) - val tmp = Curve25519Field.mul(cc, Curve25519Field.A24) - val ddPlusTmp = Curve25519Field.add(dd, tmp) - val cNew = Curve25519Field.mul(cc, ddPlusTmp) - - aNew.copyInto(a) - bNew.copyInto(b) - cNew.copyInto(c) - dNew.copyInto(d) + Curve25519Field.mulInto(a, dd, ff, t) + Curve25519Field.subInto(cc, dd, ff) + Curve25519Field.mulInto(tmp, cc, Curve25519Field.A24, t) + Curve25519Field.addInto(tmp, dd, tmp) + Curve25519Field.mulInto(c, cc, tmp, t) Curve25519Field.sel25519(a, b, r) Curve25519Field.sel25519(c, d, r) } - val invC = Curve25519Field.inv25519(c) - val result = Curve25519Field.mul(a, invC) - return Curve25519Field.pack25519(result) + // c := 1/c, then a := a/c. `tmp` is free again and serves as the + // inversion's scratch element. + Curve25519Field.inv25519Into(c, c, tmp, t) + Curve25519Field.mulInto(a, a, c, t) + return Curve25519Field.pack25519(a) } } From e22b200e630eebc678b33348cab4eb6efdbf07a9 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 14:17:01 +0000 Subject: [PATCH 56/79] perf(marmot): square by symmetry, and stop trusting the CPU profile MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A JFR profile of create_group put 75% of all execution samples in car25519. Rewriting car25519 to drop its modulo and its branch then changed nothing measurable — which is the profile telling on itself. JFR's execution sampler is safepoint-biased and the counted loops in the field arithmetic carry no safepoint polls, so samples land on whichever method follows the poll rather than the one burning the time. Time the primitives end to end instead. That needs no profiler to be believed, and multiplying by how many of them an operation performs says how much of it is curve work: x25519_dh 579us ed25519_sign 1004us x25519_base 582us ed25519_verify 2102us create_group/0 is ~4.0ms, about seven scalar multiplications; create_group/1 is ~14ms, about twenty-four. The curve primitive is essentially the whole cost, so that is the only place a create_group speedup can come from. Square by symmetry: in a*a every off-diagonal pair is computed twice, so taking each once and doubling turns 256 multiplications into 136. Worth a measured 6.6% on the scalar multiplication (579us to 541us). Ed25519 is unchanged, as extended-coordinate point addition contains no squarings. The car25519 simplification is kept but explicitly claims no speedup: C2 was already strength-reducing what it removes, and ART is the target that might not. Its KDoc now records that honestly, and warns the next reader off profiling this file. Adds the primitive benchmarks and a --only= filter to marmotBench, which is what made the profiler's story falsifiable in the first place. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../com/vitorpamplona/marmotbench/Main.kt | 7 +- .../marmotbench/MarmotBenchmarks.kt | 24 ++++-- .../marmotbench/PrimitiveBenchmarks.kt | 76 +++++++++++++++++ .../marmot/mls/crypto/Curve25519Field.kt | 81 +++++++++++++++++-- 4 files changed, 176 insertions(+), 12 deletions(-) create mode 100644 marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/PrimitiveBenchmarks.kt diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Main.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Main.kt index f37a55c4ab..3a8b35353d 100644 --- a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Main.kt +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Main.kt @@ -30,13 +30,18 @@ private fun kb(bytes: Long) = bytes / 1024.0 fun main(args: Array) { val json = args.contains("--json") + // `--only=` narrows the run to matching rows. Mostly for + // profiling, where mixing every benchmark's samples into one recording + // hides the operation you are actually asking about. + val only = args.firstOrNull { it.startsWith("--only=") }?.substringAfter("=") + // Quartz logs at DEBUG by default, and those lines land INSIDE the measured // window: they cost time, and the string building they do is charged to the // benchmark thread's allocation counter. Measuring the logger instead of // the engine would make every number here fiction. Log.minLevel = LogLevel.ERROR - val results = allBenchmarks() + val results = allBenchmarks(only) if (json) { println("[") diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt index 64f4d61a92..d07e0aa65c 100644 --- a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt @@ -159,12 +159,26 @@ fun benchIngestAppMessage(): BenchResult = private const val PAYLOAD = "marmot benchmark payload — the same 64-ish byte body both sides send" -fun allBenchmarks(): List = +/** + * Every benchmark, as name -> thunk, so a run can be narrowed to one row. + * + * Narrowing matters for profiling: a CPU profile of the whole suite mixes + * `create_group` samples with everything else, and the interesting question + * is usually about one operation at a time. + */ +private val ALL: List BenchResult>> = buildList { // The same invitee counts MDK's `bench_create_group` uses, plus 0 as // the founding-only baseline, so the rows line up for comparison. - listOf(0, 1, 8, 32).forEach { add(benchCreateGroup(it)) } - add(benchJoinWelcome()) - add(benchSendAppMessage()) - add(benchIngestAppMessage()) + listOf(0, 1, 8, 32).forEach { n -> add("create_group/$n" to { benchCreateGroup(n) }) } + add("join_welcome" to { benchJoinWelcome() }) + add("send_app_message" to { benchSendAppMessage() }) + add("ingest_app_message" to { benchIngestAppMessage() }) + addAll(primitiveBenchmarks()) } + +/** Runs every benchmark whose name contains [only], or all of them when null. */ +fun allBenchmarks(only: String? = null): List = + ALL + .filter { (name, _) -> only == null || name.contains(only) } + .map { (_, run) -> run() } diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/PrimitiveBenchmarks.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/PrimitiveBenchmarks.kt new file mode 100644 index 0000000000..4754138eaf --- /dev/null +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/PrimitiveBenchmarks.kt @@ -0,0 +1,76 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.marmotbench + +import com.vitorpamplona.quartz.marmot.mls.crypto.Ed25519 +import com.vitorpamplona.quartz.marmot.mls.crypto.X25519 + +// The elliptic-curve primitives on their own. +// +// These exist because a JFR CPU profile of create_group is not trustworthy +// here: JFR's execution sampler is safepoint-biased, and the tight counted +// loops in the field arithmetic carry no safepoint polls, so samples pile up +// on whichever method happens to follow the poll rather than the one burning +// the time. It put 75% of samples in car25519; peeling the modulo and the +// branch out of car25519 then changed nothing measurable, which is the profile +// telling on itself. +// +// Timing each primitive end to end needs no profiler to be believed, and +// multiplying by how many of them an operation performs says how much of that +// operation is curve work and how much is everything else. + +private val ED_KEYS = Ed25519.generateKeyPair() +private val X_KEYS = X25519.generateKeyPair() +private val X_PEER = X25519.generateKeyPair() +private val MESSAGE = ByteArray(256) { it.toByte() } +private val SIGNATURE = Ed25519.sign(MESSAGE, ED_KEYS.privateKey) + +/** One X25519 scalar multiplication against a supplied point — the ladder. */ +fun benchX25519Dh(): BenchResult = + measure(name = "x25519_dh", iterations = 500, warmup = 200, setup = { Unit }) { + X25519.dh(X_KEYS.privateKey, X_PEER.publicKey) + } + +/** X25519 scalar multiplication against the base point. */ +fun benchX25519Base(): BenchResult = + measure(name = "x25519_base", iterations = 500, warmup = 200, setup = { Unit }) { + X25519.publicFromPrivate(X_KEYS.privateKey) + } + +/** Ed25519 signing — one base-point scalar multiplication plus hashing. */ +fun benchEd25519Sign(): BenchResult = + measure(name = "ed25519_sign", iterations = 500, warmup = 200, setup = { Unit }) { + Ed25519.sign(MESSAGE, ED_KEYS.privateKey) + } + +/** Ed25519 verification — two scalar multiplications plus a decompression. */ +fun benchEd25519Verify(): BenchResult = + measure(name = "ed25519_verify", iterations = 500, warmup = 200, setup = { Unit }) { + Ed25519.verify(MESSAGE, SIGNATURE, ED_KEYS.publicKey) + } + +fun primitiveBenchmarks(): List BenchResult>> = + listOf( + "x25519_dh" to { benchX25519Dh() }, + "x25519_base" to { benchX25519Base() }, + "ed25519_sign" to { benchEd25519Sign() }, + "ed25519_verify" to { benchEd25519Verify() }, + ) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Curve25519Field.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Curve25519Field.kt index 45e05975f0..2a6ed3cc14 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Curve25519Field.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Curve25519Field.kt @@ -135,14 +135,46 @@ internal object Curve25519Field { val GF0 = LongArray(16) val GF1 = gf(1) - /** Carry and reduce a field element. */ + /** + * Carry and reduce a field element. + * + * TweetNaCl writes the loop over all 16 limbs and folds the wrap-around + * into the body as `o[(i + 1) % 16]` plus an `if (i == 15)`, so a modulo + * and a branch ride along on all 16 iterations to serve the one that needs + * them. Peeling the last limb out takes both off the loop: limbs 0..14 + * carry into their neighbour, and limb 15 wraps into limb 0 scaled by 38, + * which is the `c - 1` plus the `37 * (c - 1)` of the original folded into + * one term. + * + * Measured honestly, this bought **nothing** on HotSpot — C2 was already + * strength-reducing the modulo and hoisting the branch. It is kept because + * it is strictly less work for a weaker JIT to undo, and ART on a phone is + * the target that matters, but no speedup is claimed for it here: the + * benchmark on this machine could not tell the two apart. + * + * That measurement is also the reason not to trust a CPU profile of this + * file. JFR's execution sampler is safepoint-biased, and the counted loops + * in this object carry no safepoint polls, so samples pile onto whichever + * method follows the poll. It attributed 75% of all `create_group` samples + * to this function; rewriting it changed nothing, which is the profiler + * telling on itself. Time the primitives end to end instead — see + * `marmotBench`'s `x25519_dh` and friends. + * + * The `+ (1 shl 16)` / `- 1` dance is TweetNaCl's, and stays: it biases the + * limb so an arithmetic shift floors correctly for negative limbs, which is + * what makes the carry branch-free for the sign as well. + */ fun car25519(o: LongArray) { - for (i in 0 until 16) { + for (i in 0 until 15) { o[i] += (1L shl 16) val c = o[i] shr 16 - o[(i + 1) % 16] += c - 1 + (if (i == 15) 37 * (c - 1) else 0) + o[i + 1] += c - 1 o[i] -= c shl 16 } + o[15] += (1L shl 16) + val c = o[15] shr 16 + o[0] += 38 * (c - 1) + o[15] -= c shl 16 } /** Conditional swap: if b=1, swap p and q element-wise. */ @@ -292,14 +324,51 @@ internal object Curve25519Field { } /** Field squaring: o = a^2 (mod p). */ - fun sqr(a: LongArray): LongArray = mul(a, a) + fun sqr(a: LongArray): LongArray { + val o = LongArray(16) + sqrInto(o, a, LongArray(31)) + return o + } - /** Field squaring into [o]. See [mulInto] for the [t] contract. */ + /** + * Field squaring into [o]. See [mulInto] for the [t] contract. + * + * A square is not just `mulInto(o, a, a, t)`: in `a[i] * a[j]` every + * off-diagonal pair is computed twice, once as (i,j) and once as (j,i). + * Taking each pair once and doubling it turns the 256 multiplications of + * the schoolbook into 136 — the 16 diagonal squares plus 120 cross terms. + * + * That is worth having because squarings are not a rare case: the + * Montgomery ladder squares four times per bit out of ten field + * multiplications, and [inv25519Into] is 254 squarings against ~250 + * multiplications. + * + * Doubling costs no headroom. Limbs reaching here are bounded well under + * 2^18 even after an unreduced add or subtract, so a doubled cross term + * stays under 2^37 and a full 16-term column under 2^41 — far from + * overflowing the signed 64-bit accumulator. + */ fun sqrInto( o: LongArray, a: LongArray, t: LongArray, - ) = mulInto(o, a, a, t) + ) { + t.fill(0L) + for (i in 0 until 16) { + val ai = a[i] + t[i + i] += ai * ai + val twice = ai + ai + for (j in i + 1 until 16) { + t[i + j] += twice * a[j] + } + } + for (i in 0 until 15) { + t[i] += 38 * t[i + 16] + } + for (i in 0 until 16) o[i] = t[i] + car25519(o) + car25519(o) + } /** Field inversion: o = a^(-1) (mod p) using Fermat's little theorem. */ fun inv25519(a: LongArray): LongArray { From 3977c38fedf96b1d520f8acf6a21aa15e2d1c719 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 14:32:55 +0000 Subject: [PATCH 57/79] perf(marmot): field arithmetic on 10 limbs of radix 2^25.5 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit One X25519 scalar multiplication cost 541us, and create_group/1 is about two dozen of them, so the curve primitive was not part of the gap against MDK — it was the gap. The cause was the representation rather than the language. Curve25519Field used TweetNaCl's 16 limbs of radix 2^16, so a schoolbook multiply spent 256 limb products. SunEC's X25519 — also pure Java, same JIT, same machine — ran the same operation in 160us on ~26-bit limbs in 10 words, which is 100 products. The ratio of products matched the ratio of times, which rules out "managed language" as the explanation and names the fix. Rewrite the field to 10 limbs of radix 2^25.5, the layout ref10, curve25519-donna and SunEC all use. A multiply is 100 products, a square 55 (each off-diagonal pair once, doubled), and the ladder's a24 constant gets a dedicated scalar multiply instead of a general one against nine zero limbs. Limbs stay signed and denormalised between operations; only pack25519 produces a canonical value. Straight-line locals mean mulInto and sqrInto need no scratch accumulator at all, so that parameter is gone from every caller. x25519_dh 541us -> 121us ed25519_sign 1018us -> 259us x25519_base 535us -> 121us ed25519_verify 2113us -> 536us At 121us the scalar multiplication is faster than SunEC's 160us, which is the sanity check on the result: it lands where a good managed implementation should rather than somewhere suspiciously better. Against MDK, create_group/1 goes from 4.7x slower to 1.5x, join_welcome from 1.3x slower to 2.5x FASTER, and send_app_message from 2.5x to 6.5x faster. Re-encoding curve constants is where one mistyped limb yields code that runs and is silently wrong, so none were transcribed by hand. Each was re-derived from its existing encoding and checked against its mathematical definition: d == -121665/121666, d2 == 2d, By == 4/5, I^2 == -1. The multiply and square formulas were generated from the representation's weight bookkeeping and diffed against an independent reference over 20000 random limb vectors before any Kotlin was written; the carry chain and the canonical encoder were validated the same way, including at p, p-1 and on non-canonical inputs. RFC 7748, RFC 8032, HPKE, the MDK crypto-interop vectors and the full quartz and commons suites all pass unchanged. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- marmotBench/README.md | 61 ++ .../quartz/marmot/mls/crypto/Ed25519.apple.kt | 71 +- .../quartz/marmot/mls/crypto/X25519.apple.kt | 45 +- .../marmot/mls/crypto/Curve25519Field.kt | 740 +++++++++++------- .../marmot/mls/crypto/Ed25519.jvmAndroid.kt | 69 +- .../marmot/mls/crypto/X25519.jvmAndroid.kt | 45 +- .../quartz/marmot/mls/crypto/Ed25519.linux.kt | 69 +- .../quartz/marmot/mls/crypto/X25519.linux.kt | 45 +- 8 files changed, 657 insertions(+), 488 deletions(-) diff --git a/marmotBench/README.md b/marmotBench/README.md index 0d151b2d57..c71caed009 100644 --- a/marmotBench/README.md +++ b/marmotBench/README.md @@ -108,3 +108,64 @@ from 4.7x slower to about 3.7x — without changing a single protocol behaviour: the RFC 7748 / RFC 8032 vector suites, the HPKE tests and the full 4833-test quartz suite all pass unchanged, which is the point of keeping the allocating functions around to differentially test against. + +## Result: 10 limbs instead of 16 + +The allocation work above left `create_group` still ~3.9x slower than MDK, and +the primitive benchmarks said why: one X25519 scalar multiplication cost 541us, +and `create_group/1` is about two dozen of them. Curve work *was* the operation. + +The cause was the representation, not the language. `Curve25519Field` used +TweetNaCl's 16 limbs of radix 2^16, so a schoolbook field multiply spent 256 +limb products. SunEC's X25519 — also pure Java, same JIT, same machine — ran +the same operation in 160us using ~26-bit limbs in 10 words, which is 100 +products. The ratio of products matched the ratio of times. + +So the field was rewritten to 10 limbs of radix 2^25.5, the layout ref10, +curve25519-donna and SunEC all use: 100 products per multiply, 55 per square +(each off-diagonal pair once, doubled), and a dedicated scalar multiply for the +ladder's a24 constant instead of a general multiply against nine zero limbs. + +| primitive | 16 limbs | 10 limbs | speedup | +|------------------|----------|----------|---------| +| `x25519_dh` | 541us | 121us | 4.5x | +| `x25519_base` | 535us | 121us | 4.4x | +| `ed25519_sign` | 1018us | 259us | 3.9x | +| `ed25519_verify` | 2113us | 536us | 3.9x | + +At 121us the scalar multiplication is now faster than SunEC's 160us, which is +the useful sanity check on the result: it lands where a good managed-language +implementation should, rather than somewhere suspiciously better. + +Against MDK, over the whole suite (both post-rewrite runs shown where they +differ; `alloc/op` reproduces to four significant figures): + +| operation | MDK (Rust) | quartz before | quartz now | vs MDK | +|----------------------|------------|---------------|-----------------|--------------| +| `create_group/1` | 3.61 ms | 16.93 ms | 5.42 - 5.88 ms | 1.5-1.6x slower | +| `create_group/8` | 9.93 ms | 51.47 ms | 17.27 - 17.60 ms| 1.8x slower | +| `create_group/32` | 31.64 ms | 190.08 ms | 77.53 - 81.47 ms| 2.5x slower | +| `join_welcome` | 4.77 ms | 6.22 ms | 1.82 - 2.00 ms | **2.5x faster** | +| `send_app_message` | 4.28 ms | 1.72 ms | 0.61 - 0.71 ms | **6.5x faster** | +| `ingest_app_message` | (n/a) | 3.11 ms | 0.88 - 0.90 ms | — | + +`create_group` remains the weakest row, and the shape difference in "What is +compared" is part of why: we create at epoch 0 and add in a second commit, +where MDK folds invitees into the founding group. `create_group/32` is also +still the noisiest row in the suite. + +### Why the constants can be trusted + +Changing the representation re-encodes every curve constant, which is exactly +the kind of change where a single mistyped limb produces code that still runs +and is still wrong. None of them were transcribed by hand: each was re-derived +from its existing 16-bit encoding and then checked against its mathematical +definition — `d == -121665/121666`, `d2 == 2d`, `By == 4/5`, `I^2 == -1` — and +the multiply and square formulas were generated from the representation's +weight bookkeeping and diffed against an independent reference over 20 000 +random limb vectors before any Kotlin was written. The carry chain and the +canonical encoder were validated the same way, including at `p`, `p-1`, and on +non-canonical inputs such as `p` itself. + +The RFC 7748 and RFC 8032 vector suites, HPKE, the MDK crypto-interop vectors +and the full quartz + commons suites all pass unchanged. diff --git a/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.apple.kt b/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.apple.kt index 6f6d950d46..74c7621bc8 100644 --- a/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.apple.kt +++ b/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.apple.kt @@ -148,15 +148,15 @@ actual object Ed25519 { } // --- Extended Edwards point operations --- - // Point = Array of 4 LongArray(16), representing (X, Y, Z, T) + // Point = Array of 4 LongArray(10), representing (X, Y, Z, T) // where x = X/Z, y = Y/Z, x*y = T/Z private fun newPoint(): Array = arrayOf( - LongArray(16), - LongArray(16), - LongArray(16), - LongArray(16), + LongArray(10), + LongArray(10), + LongArray(10), + LongArray(10), ) /** Set point to the identity (0, 1, 1, 0). */ @@ -196,19 +196,16 @@ actual object Ed25519 { * step, so the loop allocates nothing. */ private class PointAddScratch { - val a = LongArray(16) - val b = LongArray(16) - val c = LongArray(16) - val d = LongArray(16) - val e = LongArray(16) - val f = LongArray(16) - val g = LongArray(16) - val h = LongArray(16) - val t1 = LongArray(16) - val t2 = LongArray(16) - - /** The 31-limb accumulator every [Curve25519Field.mulInto] here shares. */ - val mulT = LongArray(31) + val a = LongArray(10) + val b = LongArray(10) + val c = LongArray(10) + val d = LongArray(10) + val e = LongArray(10) + val f = LongArray(10) + val g = LongArray(10) + val h = LongArray(10) + val t1 = LongArray(10) + val t2 = LongArray(10) } /** In-place point addition: p += q. */ @@ -222,13 +219,13 @@ actual object Ed25519 { // be written back until these are done. Curve25519Field.subInto(s.a, p[1], p[0]) Curve25519Field.subInto(s.t1, q[1], q[0]) - Curve25519Field.mulInto(s.a, s.a, s.t1, s.mulT) + Curve25519Field.mulInto(s.a, s.a, s.t1) Curve25519Field.addInto(s.b, p[0], p[1]) Curve25519Field.addInto(s.t2, q[0], q[1]) - Curve25519Field.mulInto(s.b, s.b, s.t2, s.mulT) - Curve25519Field.mulInto(s.c, p[3], q[3], s.mulT) - Curve25519Field.mulInto(s.c, s.c, Curve25519Field.D2, s.mulT) - Curve25519Field.mulInto(s.d, p[2], q[2], s.mulT) + Curve25519Field.mulInto(s.b, s.b, s.t2) + Curve25519Field.mulInto(s.c, p[3], q[3]) + Curve25519Field.mulInto(s.c, s.c, Curve25519Field.D2) + Curve25519Field.mulInto(s.d, p[2], q[2]) Curve25519Field.addInto(s.d, s.d, s.d) Curve25519Field.subInto(s.e, s.b, s.a) @@ -238,10 +235,10 @@ actual object Ed25519 { // Safe to write p now: e, f, g and h are scratch, so no later product // reads anything we are about to overwrite. - Curve25519Field.mulInto(p[0], s.e, s.f, s.mulT) - Curve25519Field.mulInto(p[1], s.h, s.g, s.mulT) - Curve25519Field.mulInto(p[2], s.g, s.f, s.mulT) - Curve25519Field.mulInto(p[3], s.e, s.h, s.mulT) + Curve25519Field.mulInto(p[0], s.e, s.f) + Curve25519Field.mulInto(p[1], s.h, s.g) + Curve25519Field.mulInto(p[2], s.g, s.f) + Curve25519Field.mulInto(p[3], s.e, s.h) } /** Point doubling (self-addition). */ @@ -325,25 +322,7 @@ actual object Ed25519 { // Recover x from y: x^2 = (y^2 - 1) / (d * y^2 + 1) val y2 = Curve25519Field.sqr(r) - val d = - Curve25519Field.gf( - 0x78A3, - 0x1359, - 0x4DCA, - 0x75EB, - 0xD8AB, - 0x4141, - 0x0A4D, - 0x0070, - 0xE898, - 0x7779, - 0x4079, - 0x8CC7, - 0xFE73, - 0x2B6F, - 0x6CEE, - 0x5203, - ) + val d = Curve25519Field.D val num = Curve25519Field.sub(y2, Curve25519Field.GF1) val den = Curve25519Field.add(Curve25519Field.mul(d, y2), Curve25519Field.GF1) val denInv = Curve25519Field.inv25519(den) diff --git a/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.apple.kt b/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.apple.kt index 1625e6b4f4..6577f257ed 100644 --- a/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.apple.kt +++ b/quartz/src/appleMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.apple.kt @@ -85,17 +85,16 @@ actual object X25519 { // operation in the loop writes into one of these, so 255 iterations // allocate nothing at all — where the allocating form produced a fresh // element per operation, about 1.3 MB of garbage per call. - val e = LongArray(16) - val f = LongArray(16) - val g = LongArray(16) - val h = LongArray(16) - val dd = LongArray(16) - val ff = LongArray(16) - val da = LongArray(16) - val cb = LongArray(16) - val cc = LongArray(16) - val tmp = LongArray(16) - val t = LongArray(31) + val e = LongArray(10) + val f = LongArray(10) + val g = LongArray(10) + val h = LongArray(10) + val dd = LongArray(10) + val ff = LongArray(10) + val da = LongArray(10) + val cb = LongArray(10) + val cc = LongArray(10) + val tmp = LongArray(10) for (i in 254 downTo 0) { val r = ((z[i shr 3].toLong() shr (i and 7)) and 1) @@ -109,25 +108,25 @@ actual object X25519 { Curve25519Field.addInto(f, b, d) Curve25519Field.subInto(h, b, d) - Curve25519Field.sqrInto(dd, e, t) - Curve25519Field.sqrInto(ff, g, t) - Curve25519Field.mulInto(da, h, e, t) - Curve25519Field.mulInto(cb, f, g, t) + Curve25519Field.sqrInto(dd, e) + Curve25519Field.sqrInto(ff, g) + Curve25519Field.mulInto(da, h, e) + Curve25519Field.mulInto(cb, f, g) // e := da + cb and g := da - cb. Reusing e and g is safe: both // held inputs to the four products above, which are now computed. Curve25519Field.addInto(e, da, cb) Curve25519Field.subInto(g, da, cb) - Curve25519Field.sqrInto(b, e, t) - Curve25519Field.sqrInto(g, g, t) - Curve25519Field.mulInto(d, g, x, t) + Curve25519Field.sqrInto(b, e) + Curve25519Field.sqrInto(g, g) + Curve25519Field.mulInto(d, g, x) - Curve25519Field.mulInto(a, dd, ff, t) + Curve25519Field.mulInto(a, dd, ff) Curve25519Field.subInto(cc, dd, ff) - Curve25519Field.mulInto(tmp, cc, Curve25519Field.A24, t) + Curve25519Field.mulA24Into(tmp, cc) Curve25519Field.addInto(tmp, dd, tmp) - Curve25519Field.mulInto(c, cc, tmp, t) + Curve25519Field.mulInto(c, cc, tmp) Curve25519Field.sel25519(a, b, r) Curve25519Field.sel25519(c, d, r) @@ -135,8 +134,8 @@ actual object X25519 { // c := 1/c, then a := a/c. `tmp` is free again and serves as the // inversion's scratch element. - Curve25519Field.inv25519Into(c, c, tmp, t) - Curve25519Field.mulInto(a, a, c, t) + Curve25519Field.inv25519Into(c, c, tmp) + Curve25519Field.mulInto(a, a, c) return Curve25519Field.pack25519(a) } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Curve25519Field.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Curve25519Field.kt index 2a6ed3cc14..97ee380680 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Curve25519Field.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Curve25519Field.kt @@ -21,238 +21,93 @@ package com.vitorpamplona.quartz.marmot.mls.crypto /** - * Field arithmetic over GF(2^255-19) for Curve25519 operations. + * Field arithmetic over GF(2^255-19) for Curve25519 and Ed25519. * - * Field elements are represented as LongArray(16) in radix-2^16. - * Based on the TweetNaCl algorithm by Bernstein et al. + * ## Representation: 10 limbs, radix 2^25.5 + * + * A field element is a `LongArray(10)`. Limb `i` carries weight `2^OFFSET[i]` + * where the offsets step alternately by 26 and 25 bits — even limbs hold 26 + * bits, odd limbs 25 — so ten limbs span the 255 bits of the field. This is + * the layout ref10, curve25519-donna and SunEC all use. + * + * It replaces TweetNaCl's 16 limbs of radix 2^16, and the reason is arithmetic + * rather than taste. A schoolbook multiply costs one product per pair of + * limbs: 16 limbs means 256 products, 10 limbs means 100. Measured on the + * benchmark machine, that is the difference between a 541us scalar + * multiplication and SunEC's 160us — and SunEC is itself pure Java on the same + * JIT, which is what rules out "the JVM is slow" as the explanation. + * + * Limbs are SIGNED. Subtraction does not borrow and multiplication does not + * normalise beyond a carry chain, so intermediate limbs are allowed to go + * negative and to exceed their nominal width; only [pack25519] produces a + * canonical value. The bound that matters is that a limb entering [mulInto] + * stays under about 2^26 in absolute value, which leaves the widest + * accumulator column at 2^60 — three bits clear of overflowing a signed 64-bit + * Long. Every operation here preserves that. + * + * ## Allocating vs in-place + * + * Each `add`/`sub`/`mul`/`sqr` has an `*Into` twin that writes into a + * caller-owned output, because the allocating forms turned a scalar + * multiplication into about a megabyte of garbage. The hot paths (the X25519 + * ladder and Ed25519 point addition) use the in-place forms exclusively and + * allocate nothing; the allocating forms remain for off-hot-path clarity and + * as a differential-testing partner for the in-place ones. + * + * Unlike the 16-limb version these need no scratch accumulator: [mulInto] and + * [sqrInto] are straight-line over local Longs, so there is no array to pass + * in and none to zero. + * + * Every `*Into` is safe when the output aliases an input — the ladder relies + * on that, and it holds because each reads every input into locals before + * writing any output. */ internal object Curve25519Field { - /** The constant a24 = 121665, used in the Montgomery ladder. */ - val A24 = gf(0xDB41L, 1) + /** Bit offset of each limb: even limbs are 26 bits wide, odd limbs 25. */ + private val OFFSET = intArrayOf(0, 26, 51, 77, 102, 128, 153, 179, 204, 230) - /** d2 = 2*d where d is the Edwards curve constant, for point addition. */ - val D2 = - gf( - 0xF159, - 0x26B2, - 0x9B94, - 0xEBD6, - 0xB156, - 0x8283, - 0x149A, - 0x00E0, - 0xD130, - 0xEEF3, - 0x80F2, - 0x198E, - 0xFCE7, - 0x56DF, - 0xD9DC, - 0x2406, - ) - - /** Ed25519 base point X coordinate. */ - val BX = - gf( - 0xD51A, - 0x8F25, - 0x2D60, - 0xC956, - 0xA7B2, - 0x9525, - 0xC760, - 0x692C, - 0xDC5C, - 0xFDD6, - 0xE231, - 0xC0A4, - 0x53FE, - 0xCD6E, - 0x36D3, - 0x2169, - ) - - /** Ed25519 base point Y coordinate. */ - val BY = - gf( - 0x6658, - 0x6666, - 0x6666, - 0x6666, - 0x6666, - 0x6666, - 0x6666, - 0x6666, - 0x6666, - 0x6666, - 0x6666, - 0x6666, - 0x6666, - 0x6666, - 0x6666, - 0x6666, - ) - - /** sqrt(-1) mod p, used for Ed25519 point decompression. */ - val I = - gf( - 0xA0B0, - 0x4A0E, - 0x1B27, - 0xC4EE, - 0xE478, - 0xAD2F, - 0x1806, - 0x2F43, - 0xD7A7, - 0x3DFB, - 0x0099, - 0x2B4D, - 0xDF0B, - 0x4FC1, - 0x2480, - 0x2B83, - ) - - fun gf(vararg values: Long): LongArray { - val o = LongArray(16) - for (i in values.indices) { - o[i] = values[i] - } - return o - } - - fun gf( - a: Long, - b: Long, - ): LongArray { - val o = LongArray(16) - o[0] = a - o[1] = b - return o - } - - val GF0 = LongArray(16) - val GF1 = gf(1) + /** Number of limbs in a field element. */ + const val LIMBS = 10 /** - * Carry and reduce a field element. + * Build a field element from its limbs, zero-filling the rest. * - * TweetNaCl writes the loop over all 16 limbs and folds the wrap-around - * into the body as `o[(i + 1) % 16]` plus an `if (i == 15)`, so a modulo - * and a branch ride along on all 16 iterations to serve the one that needs - * them. Peeling the last limb out takes both off the loop: limbs 0..14 - * carry into their neighbour, and limb 15 wraps into limb 0 scaled by 38, - * which is the `c - 1` plus the `37 * (c - 1)` of the original folded into - * one term. - * - * Measured honestly, this bought **nothing** on HotSpot — C2 was already - * strength-reducing the modulo and hoisting the branch. It is kept because - * it is strictly less work for a weaker JIT to undo, and ART on a phone is - * the target that matters, but no speedup is claimed for it here: the - * benchmark on this machine could not tell the two apart. - * - * That measurement is also the reason not to trust a CPU profile of this - * file. JFR's execution sampler is safepoint-biased, and the counted loops - * in this object carry no safepoint polls, so samples pile onto whichever - * method follows the poll. It attributed 75% of all `create_group` samples - * to this function; rewriting it changed nothing, which is the profiler - * telling on itself. Time the primitives end to end instead — see - * `marmotBench`'s `x25519_dh` and friends. - * - * The `+ (1 shl 16)` / `- 1` dance is TweetNaCl's, and stays: it biases the - * limb so an arithmetic shift floors correctly for negative limbs, which is - * what makes the carry branch-free for the sign as well. + * Values are limbs in THIS representation, not bytes — see [unpack25519] + * to go from a 32-byte encoding. */ - fun car25519(o: LongArray) { - for (i in 0 until 15) { - o[i] += (1L shl 16) - val c = o[i] shr 16 - o[i + 1] += c - 1 - o[i] -= c shl 16 - } - o[15] += (1L shl 16) - val c = o[15] shr 16 - o[0] += 38 * (c - 1) - o[15] -= c shl 16 - } - - /** Conditional swap: if b=1, swap p and q element-wise. */ - fun sel25519( - p: LongArray, - q: LongArray, - b: Long, - ) { - val c = b.inv() + 1 // 0 -> 0, 1 -> -1 (all ones) - for (i in 0 until 16) { - val t = c and (p[i] xor q[i]) - p[i] = p[i] xor t - q[i] = q[i] xor t - } - } - - /** Pack a field element to 32-byte little-endian representation. */ - fun pack25519(n: LongArray): ByteArray { - val o = ByteArray(32) - val m = LongArray(16) - val t = n.copyOf() - car25519(t) - car25519(t) - car25519(t) - for (j in 0 until 2) { - m[0] = t[0] - 0xFFED - for (i in 1 until 15) { - m[i] = t[i] - 0xFFFF - ((m[i - 1] shr 16) and 1) - m[i - 1] = m[i - 1] and 0xFFFF - } - m[15] = t[15] - 0x7FFF - ((m[14] shr 16) and 1) - val b = (m[15] shr 16) and 1 - m[14] = m[14] and 0xFFFF - sel25519(t, m, 1 - b) - } - for (i in 0 until 16) { - o[2 * i] = (t[i] and 0xFF).toByte() - o[2 * i + 1] = (t[i] shr 8).toByte() - } + fun gf(vararg values: Long): LongArray { + val o = LongArray(LIMBS) + for (i in values.indices) o[i] = values[i] return o } - /** Unpack 32-byte little-endian to field element. */ - fun unpack25519(n: ByteArray): LongArray { - val o = LongArray(16) - for (i in 0 until 16) { - o[i] = (n[2 * i].toLong() and 0xFF) + ((n[2 * i + 1].toLong() and 0xFF) shl 8) - } - o[15] = o[15] and 0x7FFF - return o - } + val GF0 = LongArray(LIMBS) + val GF1 = gf(1) - // Allocating vs in-place. - // - // Each `add`/`sub`/`mul`/`sqr` below returns a NEW field element, which - // reads well and is what the TweetNaCl reference does. Inside a scalar - // multiplication it is also ~1.3 MB of garbage per call: a Montgomery - // ladder runs 255 iterations of ten muls and eight add/subs, and every one - // of them allocated. An allocation profile of the Marmot benchmarks put - // 93% of ALL sampled allocation in these three functions. - // - // So each one has an `*Into` twin that writes into a caller-owned output. - // The hot paths (X25519 and Ed25519 scalar multiplication) allocate - // their working set once and then run allocation-free. - // - // Both forms stay: the allocating ones are used off the hot path, where - // the clarity is worth more than the bytes, and keeping them means the - // in-place versions can be differentially tested against them. - // - // Every `*Into` is safe when the output aliases an input — the ladder - // relies on that. + /** a24 = 121665, the Montgomery ladder constant. */ + val A24 = gf(121665) + + /** d = -121665/121666, the Edwards curve constant. */ + val D = gf(56195235, 13857412, 51736253, 6949390, 114729, 24766616, 60832955, 30306712, 48412415, 21499315) + + /** d2 = 2*d, for extended-coordinate point addition. */ + val D2 = gf(45281625, 27714825, 36363642, 13898781, 229458, 15978800, 54557047, 27058993, 29715967, 9444199) + + /** Ed25519 base point X coordinate. */ + val BX = gf(52811034, 25909283, 16144682, 17082669, 27570973, 30858332, 40966398, 8378388, 20764389, 8758491) + + /** Ed25519 base point Y coordinate, which is 4/5. */ + val BY = gf(40265304, 26843545, 13421772, 20132659, 26843545, 6710886, 53687091, 13421772, 40265318, 26843545) + + /** sqrt(-1) mod p, used for Ed25519 point decompression. */ + val I = gf(34513072, 25610706, 9377949, 3500415, 12389472, 33281959, 41962654, 31548777, 326685, 11406482) /** Field addition: o = a + b. */ fun add( a: LongArray, b: LongArray, ): LongArray { - val o = LongArray(16) + val o = LongArray(LIMBS) addInto(o, a, b) return o } @@ -263,7 +118,7 @@ internal object Curve25519Field { a: LongArray, b: LongArray, ) { - for (i in 0 until 16) o[i] = a[i] + b[i] + for (i in 0 until LIMBS) o[i] = a[i] + b[i] } /** Field subtraction: o = a - b. */ @@ -271,7 +126,7 @@ internal object Curve25519Field { a: LongArray, b: LongArray, ): LongArray { - val o = LongArray(16) + val o = LongArray(LIMBS) subInto(o, a, b) return o } @@ -282,7 +137,7 @@ internal object Curve25519Field { a: LongArray, b: LongArray, ) { - for (i in 0 until 16) o[i] = a[i] - b[i] + for (i in 0 until LIMBS) o[i] = a[i] - b[i] } /** Field multiplication: o = a * b (mod p). */ @@ -290,111 +145,431 @@ internal object Curve25519Field { a: LongArray, b: LongArray, ): LongArray { - val o = LongArray(16) - mulInto(o, a, b, LongArray(31)) + val o = LongArray(LIMBS) + mulInto(o, a, b) return o } /** - * Field multiplication into [o], using [t] as the 31-limb accumulator. + * Field multiplication into [o]: o = f * g (mod p). * - * [t] is caller-owned so a loop can reuse one across thousands of calls; - * it is zeroed here, so callers never have to. Safe when [o] aliases [a] - * or [b]: the product is fully accumulated in [t] before [o] is touched. + * Straight-line over locals, so it allocates nothing and [o] may alias + * either input. Generated from the weight bookkeeping of the + * representation and cross-checked against an independent reference: a + * product of limbs i and j lands in limb i+j, doubled when i and j are + * both odd (their offsets sum to one more than the target's), and folded + * back into limb i+j-10 scaled by 19 when it overflows the top, since + * 2^255 == 19 (mod p). + * + * 100 products, against 256 for the 16-limb representation this replaced. */ fun mulInto( o: LongArray, - a: LongArray, - b: LongArray, - t: LongArray, + f: LongArray, + g: LongArray, ) { - t.fill(0L) - for (i in 0 until 16) { - val ai = a[i] - for (j in 0 until 16) { - t[i + j] += ai * b[j] - } - } - for (i in 0 until 15) { - t[i] += 38 * t[i + 16] - } - for (i in 0 until 16) o[i] = t[i] - car25519(o) - car25519(o) + val f0 = f[0] + val f1 = f[1] + val f2 = f[2] + val f3 = f[3] + val f4 = f[4] + val f5 = f[5] + val f6 = f[6] + val f7 = f[7] + val f8 = f[8] + val f9 = f[9] + val g0 = g[0] + val g1 = g[1] + val g2 = g[2] + val g3 = g[3] + val g4 = g[4] + val g5 = g[5] + val g6 = g[6] + val g7 = g[7] + val g8 = g[8] + val g9 = g[9] + val f1x2 = f1 + f1 + val f3x2 = f3 + f3 + val f5x2 = f5 + f5 + val f7x2 = f7 + f7 + val f9x2 = f9 + f9 + val g1x19 = 19 * g1 + val g2x19 = 19 * g2 + val g3x19 = 19 * g3 + val g4x19 = 19 * g4 + val g5x19 = 19 * g5 + val g6x19 = 19 * g6 + val g7x19 = 19 * g7 + val g8x19 = 19 * g8 + val g9x19 = 19 * g9 + var h0 = f0 * g0 + f1x2 * g9x19 + f2 * g8x19 + f3x2 * g7x19 + f4 * g6x19 + f5x2 * g5x19 + f6 * g4x19 + f7x2 * g3x19 + f8 * g2x19 + f9x2 * g1x19 + var h1 = f0 * g1 + f1 * g0 + f2 * g9x19 + f3 * g8x19 + f4 * g7x19 + f5 * g6x19 + f6 * g5x19 + f7 * g4x19 + f8 * g3x19 + f9 * g2x19 + var h2 = f0 * g2 + f1x2 * g1 + f2 * g0 + f3x2 * g9x19 + f4 * g8x19 + f5x2 * g7x19 + f6 * g6x19 + f7x2 * g5x19 + f8 * g4x19 + f9x2 * g3x19 + var h3 = f0 * g3 + f1 * g2 + f2 * g1 + f3 * g0 + f4 * g9x19 + f5 * g8x19 + f6 * g7x19 + f7 * g6x19 + f8 * g5x19 + f9 * g4x19 + var h4 = f0 * g4 + f1x2 * g3 + f2 * g2 + f3x2 * g1 + f4 * g0 + f5x2 * g9x19 + f6 * g8x19 + f7x2 * g7x19 + f8 * g6x19 + f9x2 * g5x19 + var h5 = f0 * g5 + f1 * g4 + f2 * g3 + f3 * g2 + f4 * g1 + f5 * g0 + f6 * g9x19 + f7 * g8x19 + f8 * g7x19 + f9 * g6x19 + var h6 = f0 * g6 + f1x2 * g5 + f2 * g4 + f3x2 * g3 + f4 * g2 + f5x2 * g1 + f6 * g0 + f7x2 * g9x19 + f8 * g8x19 + f9x2 * g7x19 + var h7 = f0 * g7 + f1 * g6 + f2 * g5 + f3 * g4 + f4 * g3 + f5 * g2 + f6 * g1 + f7 * g0 + f8 * g9x19 + f9 * g8x19 + var h8 = f0 * g8 + f1x2 * g7 + f2 * g6 + f3x2 * g5 + f4 * g4 + f5x2 * g3 + f6 * g2 + f7x2 * g1 + f8 * g0 + f9x2 * g9x19 + var h9 = f0 * g9 + f1 * g8 + f2 * g7 + f3 * g6 + f4 * g5 + f5 * g4 + f6 * g3 + f7 * g2 + f8 * g1 + f9 * g0 + // ref10's carry ordering: independent carries are interleaved so the + // limb-to-limb dependency chain does not stall the pipeline. + var c = (h0 + (1L shl 25)) shr 26 + h1 += c + h0 -= c shl 26 + c = (h4 + (1L shl 25)) shr 26 + h5 += c + h4 -= c shl 26 + c = (h1 + (1L shl 24)) shr 25 + h2 += c + h1 -= c shl 25 + c = (h5 + (1L shl 24)) shr 25 + h6 += c + h5 -= c shl 25 + c = (h2 + (1L shl 25)) shr 26 + h3 += c + h2 -= c shl 26 + c = (h6 + (1L shl 25)) shr 26 + h7 += c + h6 -= c shl 26 + c = (h3 + (1L shl 24)) shr 25 + h4 += c + h3 -= c shl 25 + c = (h7 + (1L shl 24)) shr 25 + h8 += c + h7 -= c shl 25 + c = (h4 + (1L shl 25)) shr 26 + h5 += c + h4 -= c shl 26 + c = (h8 + (1L shl 25)) shr 26 + h9 += c + h8 -= c shl 26 + c = (h9 + (1L shl 24)) shr 25 + h0 += 19 * c + h9 -= c shl 25 + c = (h0 + (1L shl 25)) shr 26 + h1 += c + h0 -= c shl 26 + o[0] = h0 + o[1] = h1 + o[2] = h2 + o[3] = h3 + o[4] = h4 + o[5] = h5 + o[6] = h6 + o[7] = h7 + o[8] = h8 + o[9] = h9 } /** Field squaring: o = a^2 (mod p). */ fun sqr(a: LongArray): LongArray { - val o = LongArray(16) - sqrInto(o, a, LongArray(31)) + val o = LongArray(LIMBS) + sqrInto(o, a) return o } /** - * Field squaring into [o]. See [mulInto] for the [t] contract. + * Field squaring into [o]: o = f^2 (mod p). * - * A square is not just `mulInto(o, a, a, t)`: in `a[i] * a[j]` every - * off-diagonal pair is computed twice, once as (i,j) and once as (j,i). - * Taking each pair once and doubling it turns the 256 multiplications of - * the schoolbook into 136 — the 16 diagonal squares plus 120 cross terms. - * - * That is worth having because squarings are not a rare case: the - * Montgomery ladder squares four times per bit out of ten field - * multiplications, and [inv25519Into] is 254 squarings against ~250 - * multiplications. - * - * Doubling costs no headroom. Limbs reaching here are bounded well under - * 2^18 even after an unreduced add or subtract, so a doubled cross term - * stays under 2^37 and a full 16-term column under 2^41 — far from - * overflowing the signed 64-bit accumulator. + * Same bookkeeping as [mulInto], with each off-diagonal pair taken once + * and doubled instead of computed twice: 55 products against the multiply's + * 100. Squarings are not a rare case — the ladder squares four times per + * bit, and [inv25519Into] is 254 squarings. */ fun sqrInto( o: LongArray, - a: LongArray, - t: LongArray, + f: LongArray, ) { - t.fill(0L) - for (i in 0 until 16) { - val ai = a[i] - t[i + i] += ai * ai - val twice = ai + ai - for (j in i + 1 until 16) { - t[i + j] += twice * a[j] + val f0 = f[0] + val f1 = f[1] + val f2 = f[2] + val f3 = f[3] + val f4 = f[4] + val f5 = f[5] + val f6 = f[6] + val f7 = f[7] + val f8 = f[8] + val f9 = f[9] + val f0x2 = f0 + f0 + val f1x2 = f1 + f1 + val f2x2 = f2 + f2 + val f3x2 = f3 + f3 + val f4x2 = f4 + f4 + val f5x2 = f5 + f5 + val f6x2 = f6 + f6 + val f7x2 = f7 + f7 + val f8x2 = f8 + f8 + val f9x2 = f9 + f9 + val f1x4 = 4 * f1 + val f3x4 = 4 * f3 + val f5x4 = 4 * f5 + val f7x4 = 4 * f7 + val f1x19 = 19 * f1 + val f2x19 = 19 * f2 + val f3x19 = 19 * f3 + val f4x19 = 19 * f4 + val f5x19 = 19 * f5 + val f6x19 = 19 * f6 + val f7x19 = 19 * f7 + val f8x19 = 19 * f8 + val f9x19 = 19 * f9 + var h0 = f0 * f0 + f1x4 * f9x19 + f2x2 * f8x19 + f3x4 * f7x19 + f4x2 * f6x19 + f5x2 * f5x19 + var h1 = f0x2 * f1 + f2x2 * f9x19 + f3x2 * f8x19 + f4x2 * f7x19 + f5x2 * f6x19 + var h2 = f0x2 * f2 + f1x2 * f1 + f3x4 * f9x19 + f4x2 * f8x19 + f5x4 * f7x19 + f6 * f6x19 + var h3 = f0x2 * f3 + f1x2 * f2 + f4x2 * f9x19 + f5x2 * f8x19 + f6x2 * f7x19 + var h4 = f0x2 * f4 + f1x4 * f3 + f2 * f2 + f5x4 * f9x19 + f6x2 * f8x19 + f7x2 * f7x19 + var h5 = f0x2 * f5 + f1x2 * f4 + f2x2 * f3 + f6x2 * f9x19 + f7x2 * f8x19 + var h6 = f0x2 * f6 + f1x4 * f5 + f2x2 * f4 + f3x2 * f3 + f7x4 * f9x19 + f8 * f8x19 + var h7 = f0x2 * f7 + f1x2 * f6 + f2x2 * f5 + f3x2 * f4 + f8x2 * f9x19 + var h8 = f0x2 * f8 + f1x4 * f7 + f2x2 * f6 + f3x4 * f5 + f4 * f4 + f9x2 * f9x19 + var h9 = f0x2 * f9 + f1x2 * f8 + f2x2 * f7 + f3x2 * f6 + f4x2 * f5 + // ref10's carry ordering: independent carries are interleaved so the + // limb-to-limb dependency chain does not stall the pipeline. + var c = (h0 + (1L shl 25)) shr 26 + h1 += c + h0 -= c shl 26 + c = (h4 + (1L shl 25)) shr 26 + h5 += c + h4 -= c shl 26 + c = (h1 + (1L shl 24)) shr 25 + h2 += c + h1 -= c shl 25 + c = (h5 + (1L shl 24)) shr 25 + h6 += c + h5 -= c shl 25 + c = (h2 + (1L shl 25)) shr 26 + h3 += c + h2 -= c shl 26 + c = (h6 + (1L shl 25)) shr 26 + h7 += c + h6 -= c shl 26 + c = (h3 + (1L shl 24)) shr 25 + h4 += c + h3 -= c shl 25 + c = (h7 + (1L shl 24)) shr 25 + h8 += c + h7 -= c shl 25 + c = (h4 + (1L shl 25)) shr 26 + h5 += c + h4 -= c shl 26 + c = (h8 + (1L shl 25)) shr 26 + h9 += c + h8 -= c shl 26 + c = (h9 + (1L shl 24)) shr 25 + h0 += 19 * c + h9 -= c shl 25 + c = (h0 + (1L shl 25)) shr 26 + h1 += c + h0 -= c shl 26 + o[0] = h0 + o[1] = h1 + o[2] = h2 + o[3] = h3 + o[4] = h4 + o[5] = h5 + o[6] = h6 + o[7] = h7 + o[8] = h8 + o[9] = h9 + } + + /** + * Multiply by the ladder constant a24 = 121665. + * + * One limb-wise scalar multiply plus a carry, instead of the 100 products + * a general [mulInto] would spend against a constant that is zero in nine + * of its ten limbs. The ladder does this once per bit. + * + * 121665 < 2^17 and limbs stay under 2^26, so each product stays under + * 2^43 — nowhere near overflowing. + */ + fun mulA24Into( + o: LongArray, + f: LongArray, + ) { + var h0 = f[0] * 121665 + var h1 = f[1] * 121665 + var h2 = f[2] * 121665 + var h3 = f[3] * 121665 + var h4 = f[4] * 121665 + var h5 = f[5] * 121665 + var h6 = f[6] * 121665 + var h7 = f[7] * 121665 + var h8 = f[8] * 121665 + var h9 = f[9] * 121665 + // ref10's carry ordering: independent carries are interleaved so the + // limb-to-limb dependency chain does not stall the pipeline. + var c = (h0 + (1L shl 25)) shr 26 + h1 += c + h0 -= c shl 26 + c = (h4 + (1L shl 25)) shr 26 + h5 += c + h4 -= c shl 26 + c = (h1 + (1L shl 24)) shr 25 + h2 += c + h1 -= c shl 25 + c = (h5 + (1L shl 24)) shr 25 + h6 += c + h5 -= c shl 25 + c = (h2 + (1L shl 25)) shr 26 + h3 += c + h2 -= c shl 26 + c = (h6 + (1L shl 25)) shr 26 + h7 += c + h6 -= c shl 26 + c = (h3 + (1L shl 24)) shr 25 + h4 += c + h3 -= c shl 25 + c = (h7 + (1L shl 24)) shr 25 + h8 += c + h7 -= c shl 25 + c = (h4 + (1L shl 25)) shr 26 + h5 += c + h4 -= c shl 26 + c = (h8 + (1L shl 25)) shr 26 + h9 += c + h8 -= c shl 26 + c = (h9 + (1L shl 24)) shr 25 + h0 += 19 * c + h9 -= c shl 25 + c = (h0 + (1L shl 25)) shr 26 + h1 += c + h0 -= c shl 26 + o[0] = h0 + o[1] = h1 + o[2] = h2 + o[3] = h3 + o[4] = h4 + o[5] = h5 + o[6] = h6 + o[7] = h7 + o[8] = h8 + o[9] = h9 + } + + /** + * Carry and partially reduce a field element in place. + * + * Brings limbs back inside their nominal widths so a value that has been + * added or subtracted repeatedly is safe to feed to [mulInto] again. It + * does NOT produce a canonical representative — [pack25519] does that. + */ + fun car25519(o: LongArray) { + var c: Long + for (i in 0 until LIMBS) { + val width = if (i and 1 == 0) 26 else 25 + c = (o[i] + (1L shl (width - 1))) shr width + if (i == 9) o[0] += 19 * c else o[i + 1] += c + o[i] -= c shl width + } + c = (o[0] + (1L shl 25)) shr 26 + o[1] += c + o[0] -= c shl 26 + } + + /** Conditional swap: if b=1, swap p and q element-wise. */ + fun sel25519( + p: LongArray, + q: LongArray, + b: Long, + ) { + val c = b.inv() + 1 // 0 -> 0, 1 -> -1 (all ones) + for (i in 0 until LIMBS) { + val t = c and (p[i] xor q[i]) + p[i] = p[i] xor t + q[i] = q[i] xor t + } + } + + /** + * Encode a field element as 32 little-endian bytes, fully reduced. + * + * This is the only place a canonical representative is produced. The + * leading pass computes the carry that WOULD come out of the top limb if + * the value were >= p, and folds 19 times it back into limb 0; that turns + * any representative of the class — including a non-canonical input such + * as p itself — into the unique one below p. The second pass then carries + * without wrapping, so the top carry falls off and the remaining limbs are + * exactly the base-2^25.5 digits of the answer. + */ + fun pack25519(n: LongArray): ByteArray { + val h = n.copyOf() + var q = (19 * h[9] + (1L shl 24)) shr 25 + for (i in 0 until LIMBS) { + q = (h[i] + q) shr (if (i and 1 == 0) 26 else 25) + } + h[0] += 19 * q + var c = 0L + for (i in 0 until LIMBS) { + val width = if (i and 1 == 0) 26 else 25 + h[i] += c + c = h[i] shr width + h[i] -= c shl width + } + val o = ByteArray(32) + for (i in 0 until LIMBS) { + var v = h[i] + var bit = OFFSET[i] + while (v != 0L) { + val idx = bit shr 3 + val shift = bit and 7 + val room = 8 - shift + o[idx] = (o[idx].toLong() or ((v and ((1L shl room) - 1)) shl shift)).toByte() + v = v ushr room + bit += room } } - for (i in 0 until 15) { - t[i] += 38 * t[i + 16] + return o + } + + /** + * Decode 32 little-endian bytes into a field element. + * + * Bit 255 is ignored, per RFC 7748: the top bit of the last byte is not + * part of the value. Limb 9 is 25 bits wide and ends at bit 254, so the + * mask drops it without a separate step. + */ + fun unpack25519(n: ByteArray): LongArray { + val o = LongArray(LIMBS) + for (i in 0 until LIMBS) { + val width = if (i and 1 == 0) 26 else 25 + val bit = OFFSET[i] + val byteStart = bit shr 3 + val shift = bit and 7 + var chunk = 0L + for (k in 0 until 5) { + val idx = byteStart + k + if (idx < 32) chunk = chunk or ((n[idx].toLong() and 0xFF) shl (8 * k)) + } + o[i] = (chunk ushr shift) and ((1L shl width) - 1) } - for (i in 0 until 16) o[i] = t[i] - car25519(o) - car25519(o) + return o } /** Field inversion: o = a^(-1) (mod p) using Fermat's little theorem. */ fun inv25519(a: LongArray): LongArray { - val o = LongArray(16) - inv25519Into(o, a, LongArray(16), LongArray(31)) + val o = LongArray(LIMBS) + inv25519Into(o, a, LongArray(LIMBS)) return o } /** * Field inversion into [o], allocation-free. * - * 254 squarings and ~250 multiplications, which is why this one matters: - * on the allocating path it was the single largest contributor after the - * ladder itself. [c] is a scratch field element and [t] the [mulInto] - * accumulator; [o] may alias [a]. + * a^(p-2) by square-and-multiply over the fixed exponent: 254 squarings + * and ~250 multiplications. [c] is a caller-owned scratch element; [o] may + * alias [a]. */ fun inv25519Into( o: LongArray, a: LongArray, c: LongArray, - t: LongArray, ) { a.copyInto(c) for (i in 253 downTo 0) { - sqrInto(c, c, t) - if (i != 2 && i != 4) mulInto(c, c, a, t) + sqrInto(c, c) + if (i != 2 && i != 4) mulInto(c, c, a) } c.copyInto(o) } @@ -402,16 +577,15 @@ internal object Curve25519Field { /** Parity of a field element (lowest bit after reduction). */ fun par25519(a: LongArray): Int { val d = pack25519(a) - return d[0].toInt() and 1 + return (d[0].toInt() and 1) } /** Raise a field element to the power (2^252 - 3), used in sqrt. */ fun pow2523(a: LongArray): LongArray { val c = a.copyOf() - val t = LongArray(31) for (i in 250 downTo 0) { - sqrInto(c, c, t) - if (i != 1) mulInto(c, c, a, t) + sqrInto(c, c) + if (i != 1) mulInto(c, c, a) } return c } diff --git a/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.jvmAndroid.kt b/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.jvmAndroid.kt index 028eddef0a..34fe7fa03b 100644 --- a/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.jvmAndroid.kt +++ b/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.jvmAndroid.kt @@ -131,10 +131,10 @@ actual object Ed25519 { private fun newPoint(): Array = arrayOf( - LongArray(16), - LongArray(16), - LongArray(16), - LongArray(16), + LongArray(10), + LongArray(10), + LongArray(10), + LongArray(10), ) private fun identityPoint(): Array { @@ -172,19 +172,16 @@ actual object Ed25519 { * step, so the loop allocates nothing. */ private class PointAddScratch { - val a = LongArray(16) - val b = LongArray(16) - val c = LongArray(16) - val d = LongArray(16) - val e = LongArray(16) - val f = LongArray(16) - val g = LongArray(16) - val h = LongArray(16) - val t1 = LongArray(16) - val t2 = LongArray(16) - - /** The 31-limb accumulator every [Curve25519Field.mulInto] here shares. */ - val mulT = LongArray(31) + val a = LongArray(10) + val b = LongArray(10) + val c = LongArray(10) + val d = LongArray(10) + val e = LongArray(10) + val f = LongArray(10) + val g = LongArray(10) + val h = LongArray(10) + val t1 = LongArray(10) + val t2 = LongArray(10) } private fun addPointInPlace( @@ -197,13 +194,13 @@ actual object Ed25519 { // be written back until these are done. Curve25519Field.subInto(s.a, p[1], p[0]) Curve25519Field.subInto(s.t1, q[1], q[0]) - Curve25519Field.mulInto(s.a, s.a, s.t1, s.mulT) + Curve25519Field.mulInto(s.a, s.a, s.t1) Curve25519Field.addInto(s.b, p[0], p[1]) Curve25519Field.addInto(s.t2, q[0], q[1]) - Curve25519Field.mulInto(s.b, s.b, s.t2, s.mulT) - Curve25519Field.mulInto(s.c, p[3], q[3], s.mulT) - Curve25519Field.mulInto(s.c, s.c, Curve25519Field.D2, s.mulT) - Curve25519Field.mulInto(s.d, p[2], q[2], s.mulT) + Curve25519Field.mulInto(s.b, s.b, s.t2) + Curve25519Field.mulInto(s.c, p[3], q[3]) + Curve25519Field.mulInto(s.c, s.c, Curve25519Field.D2) + Curve25519Field.mulInto(s.d, p[2], q[2]) Curve25519Field.addInto(s.d, s.d, s.d) Curve25519Field.subInto(s.e, s.b, s.a) @@ -213,10 +210,10 @@ actual object Ed25519 { // Safe to write p now: e, f, g and h are scratch, so no later product // reads anything we are about to overwrite. - Curve25519Field.mulInto(p[0], s.e, s.f, s.mulT) - Curve25519Field.mulInto(p[1], s.h, s.g, s.mulT) - Curve25519Field.mulInto(p[2], s.g, s.f, s.mulT) - Curve25519Field.mulInto(p[3], s.e, s.h, s.mulT) + Curve25519Field.mulInto(p[0], s.e, s.f) + Curve25519Field.mulInto(p[1], s.h, s.g) + Curve25519Field.mulInto(p[2], s.g, s.f) + Curve25519Field.mulInto(p[3], s.e, s.h) } private fun negatePoint(p: Array): Array { @@ -287,25 +284,7 @@ actual object Ed25519 { Curve25519Field.GF1.copyInto(p[2]) val y2 = Curve25519Field.sqr(r) - val d = - Curve25519Field.gf( - 0x78A3, - 0x1359, - 0x4DCA, - 0x75EB, - 0xD8AB, - 0x4141, - 0x0A4D, - 0x0070, - 0xE898, - 0x7779, - 0x4079, - 0x8CC7, - 0xFE73, - 0x2B6F, - 0x6CEE, - 0x5203, - ) + val d = Curve25519Field.D val num = Curve25519Field.sub(y2, Curve25519Field.GF1) val den = Curve25519Field.add(Curve25519Field.mul(d, y2), Curve25519Field.GF1) val denInv = Curve25519Field.inv25519(den) diff --git a/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.jvmAndroid.kt b/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.jvmAndroid.kt index 3caeab777f..68d0e477f4 100644 --- a/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.jvmAndroid.kt +++ b/quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.jvmAndroid.kt @@ -87,17 +87,16 @@ actual object X25519 { // operation in the loop writes into one of these, so 255 iterations // allocate nothing at all — where the allocating form produced a fresh // element per operation, about 1.3 MB of garbage per call. - val e = LongArray(16) - val f = LongArray(16) - val g = LongArray(16) - val h = LongArray(16) - val dd = LongArray(16) - val ff = LongArray(16) - val da = LongArray(16) - val cb = LongArray(16) - val cc = LongArray(16) - val tmp = LongArray(16) - val t = LongArray(31) + val e = LongArray(10) + val f = LongArray(10) + val g = LongArray(10) + val h = LongArray(10) + val dd = LongArray(10) + val ff = LongArray(10) + val da = LongArray(10) + val cb = LongArray(10) + val cc = LongArray(10) + val tmp = LongArray(10) for (i in 254 downTo 0) { val r = ((z[i shr 3].toLong() shr (i and 7)) and 1) @@ -111,25 +110,25 @@ actual object X25519 { Curve25519Field.addInto(f, b, d) Curve25519Field.subInto(h, b, d) - Curve25519Field.sqrInto(dd, e, t) - Curve25519Field.sqrInto(ff, g, t) - Curve25519Field.mulInto(da, h, e, t) - Curve25519Field.mulInto(cb, f, g, t) + Curve25519Field.sqrInto(dd, e) + Curve25519Field.sqrInto(ff, g) + Curve25519Field.mulInto(da, h, e) + Curve25519Field.mulInto(cb, f, g) // e := da + cb and g := da - cb. Reusing e and g is safe: both // held inputs to the four products above, which are now computed. Curve25519Field.addInto(e, da, cb) Curve25519Field.subInto(g, da, cb) - Curve25519Field.sqrInto(b, e, t) - Curve25519Field.sqrInto(g, g, t) - Curve25519Field.mulInto(d, g, x, t) + Curve25519Field.sqrInto(b, e) + Curve25519Field.sqrInto(g, g) + Curve25519Field.mulInto(d, g, x) - Curve25519Field.mulInto(a, dd, ff, t) + Curve25519Field.mulInto(a, dd, ff) Curve25519Field.subInto(cc, dd, ff) - Curve25519Field.mulInto(tmp, cc, Curve25519Field.A24, t) + Curve25519Field.mulA24Into(tmp, cc) Curve25519Field.addInto(tmp, dd, tmp) - Curve25519Field.mulInto(c, cc, tmp, t) + Curve25519Field.mulInto(c, cc, tmp) Curve25519Field.sel25519(a, b, r) Curve25519Field.sel25519(c, d, r) @@ -137,8 +136,8 @@ actual object X25519 { // c := 1/c, then a := a/c. `tmp` is free again and serves as the // inversion's scratch element. - Curve25519Field.inv25519Into(c, c, tmp, t) - Curve25519Field.mulInto(a, a, c, t) + Curve25519Field.inv25519Into(c, c, tmp) + Curve25519Field.mulInto(a, a, c) return Curve25519Field.pack25519(a) } } diff --git a/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.linux.kt b/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.linux.kt index 1475607b2f..209c36a4b7 100644 --- a/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.linux.kt +++ b/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/Ed25519.linux.kt @@ -131,10 +131,10 @@ actual object Ed25519 { private fun newPoint(): Array = arrayOf( - LongArray(16), - LongArray(16), - LongArray(16), - LongArray(16), + LongArray(10), + LongArray(10), + LongArray(10), + LongArray(10), ) private fun identityPoint(): Array { @@ -172,19 +172,16 @@ actual object Ed25519 { * step, so the loop allocates nothing. */ private class PointAddScratch { - val a = LongArray(16) - val b = LongArray(16) - val c = LongArray(16) - val d = LongArray(16) - val e = LongArray(16) - val f = LongArray(16) - val g = LongArray(16) - val h = LongArray(16) - val t1 = LongArray(16) - val t2 = LongArray(16) - - /** The 31-limb accumulator every [Curve25519Field.mulInto] here shares. */ - val mulT = LongArray(31) + val a = LongArray(10) + val b = LongArray(10) + val c = LongArray(10) + val d = LongArray(10) + val e = LongArray(10) + val f = LongArray(10) + val g = LongArray(10) + val h = LongArray(10) + val t1 = LongArray(10) + val t2 = LongArray(10) } private fun addPointInPlace( @@ -197,13 +194,13 @@ actual object Ed25519 { // be written back until these are done. Curve25519Field.subInto(s.a, p[1], p[0]) Curve25519Field.subInto(s.t1, q[1], q[0]) - Curve25519Field.mulInto(s.a, s.a, s.t1, s.mulT) + Curve25519Field.mulInto(s.a, s.a, s.t1) Curve25519Field.addInto(s.b, p[0], p[1]) Curve25519Field.addInto(s.t2, q[0], q[1]) - Curve25519Field.mulInto(s.b, s.b, s.t2, s.mulT) - Curve25519Field.mulInto(s.c, p[3], q[3], s.mulT) - Curve25519Field.mulInto(s.c, s.c, Curve25519Field.D2, s.mulT) - Curve25519Field.mulInto(s.d, p[2], q[2], s.mulT) + Curve25519Field.mulInto(s.b, s.b, s.t2) + Curve25519Field.mulInto(s.c, p[3], q[3]) + Curve25519Field.mulInto(s.c, s.c, Curve25519Field.D2) + Curve25519Field.mulInto(s.d, p[2], q[2]) Curve25519Field.addInto(s.d, s.d, s.d) Curve25519Field.subInto(s.e, s.b, s.a) @@ -213,10 +210,10 @@ actual object Ed25519 { // Safe to write p now: e, f, g and h are scratch, so no later product // reads anything we are about to overwrite. - Curve25519Field.mulInto(p[0], s.e, s.f, s.mulT) - Curve25519Field.mulInto(p[1], s.h, s.g, s.mulT) - Curve25519Field.mulInto(p[2], s.g, s.f, s.mulT) - Curve25519Field.mulInto(p[3], s.e, s.h, s.mulT) + Curve25519Field.mulInto(p[0], s.e, s.f) + Curve25519Field.mulInto(p[1], s.h, s.g) + Curve25519Field.mulInto(p[2], s.g, s.f) + Curve25519Field.mulInto(p[3], s.e, s.h) } private fun negatePoint(p: Array): Array { @@ -287,25 +284,7 @@ actual object Ed25519 { Curve25519Field.GF1.copyInto(p[2]) val y2 = Curve25519Field.sqr(r) - val d = - Curve25519Field.gf( - 0x78A3, - 0x1359, - 0x4DCA, - 0x75EB, - 0xD8AB, - 0x4141, - 0x0A4D, - 0x0070, - 0xE898, - 0x7779, - 0x4079, - 0x8CC7, - 0xFE73, - 0x2B6F, - 0x6CEE, - 0x5203, - ) + val d = Curve25519Field.D val num = Curve25519Field.sub(y2, Curve25519Field.GF1) val den = Curve25519Field.add(Curve25519Field.mul(d, y2), Curve25519Field.GF1) val denInv = Curve25519Field.inv25519(den) diff --git a/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.linux.kt b/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.linux.kt index ed0d6a7ffa..413eb64faa 100644 --- a/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.linux.kt +++ b/quartz/src/linuxMain/kotlin/com/vitorpamplona/quartz/marmot/mls/crypto/X25519.linux.kt @@ -82,17 +82,16 @@ actual object X25519 { // operation in the loop writes into one of these, so 255 iterations // allocate nothing at all — where the allocating form produced a fresh // element per operation, about 1.3 MB of garbage per call. - val e = LongArray(16) - val f = LongArray(16) - val g = LongArray(16) - val h = LongArray(16) - val dd = LongArray(16) - val ff = LongArray(16) - val da = LongArray(16) - val cb = LongArray(16) - val cc = LongArray(16) - val tmp = LongArray(16) - val t = LongArray(31) + val e = LongArray(10) + val f = LongArray(10) + val g = LongArray(10) + val h = LongArray(10) + val dd = LongArray(10) + val ff = LongArray(10) + val da = LongArray(10) + val cb = LongArray(10) + val cc = LongArray(10) + val tmp = LongArray(10) for (i in 254 downTo 0) { val r = ((z[i shr 3].toLong() shr (i and 7)) and 1) @@ -106,25 +105,25 @@ actual object X25519 { Curve25519Field.addInto(f, b, d) Curve25519Field.subInto(h, b, d) - Curve25519Field.sqrInto(dd, e, t) - Curve25519Field.sqrInto(ff, g, t) - Curve25519Field.mulInto(da, h, e, t) - Curve25519Field.mulInto(cb, f, g, t) + Curve25519Field.sqrInto(dd, e) + Curve25519Field.sqrInto(ff, g) + Curve25519Field.mulInto(da, h, e) + Curve25519Field.mulInto(cb, f, g) // e := da + cb and g := da - cb. Reusing e and g is safe: both // held inputs to the four products above, which are now computed. Curve25519Field.addInto(e, da, cb) Curve25519Field.subInto(g, da, cb) - Curve25519Field.sqrInto(b, e, t) - Curve25519Field.sqrInto(g, g, t) - Curve25519Field.mulInto(d, g, x, t) + Curve25519Field.sqrInto(b, e) + Curve25519Field.sqrInto(g, g) + Curve25519Field.mulInto(d, g, x) - Curve25519Field.mulInto(a, dd, ff, t) + Curve25519Field.mulInto(a, dd, ff) Curve25519Field.subInto(cc, dd, ff) - Curve25519Field.mulInto(tmp, cc, Curve25519Field.A24, t) + Curve25519Field.mulA24Into(tmp, cc) Curve25519Field.addInto(tmp, dd, tmp) - Curve25519Field.mulInto(c, cc, tmp, t) + Curve25519Field.mulInto(c, cc, tmp) Curve25519Field.sel25519(a, b, r) Curve25519Field.sel25519(c, d, r) @@ -132,8 +131,8 @@ actual object X25519 { // c := 1/c, then a := a/c. `tmp` is free again and serves as the // inversion's scratch element. - Curve25519Field.inv25519Into(c, c, tmp, t) - Curve25519Field.mulInto(a, a, c, t) + Curve25519Field.inv25519Into(c, c, tmp) + Curve25519Field.mulInto(a, a, c) return Curve25519Field.pack25519(a) } } From d9a0bb17f2cf75f3f51e91c7021544c23c4e5601 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 14:39:19 +0000 Subject: [PATCH 58/79] test(marmot): probe the commit shape of founding group creation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The README claimed create_group/N "includes one more commit on our side" than MDK's founding creation. Measured, that is wrong: create leaves epoch 0 having published nothing, addMember produces exactly one kind:445, and the invitee joins at epoch 1. MLS allows nothing else — RFC 9420 section 11 requires a group to be created with a single member, so MDK's founding creation commits Adds internally too. The difference is that we publish that founding Add Commit and MDK deliberately does not. Its own comment: "we intentionally do NOT emit the commit ... every other member lands in the group via welcomes, which carry the post-commit state directly." --epoch-probe prints the shape so the claim stays checkable rather than remembered. The README correction and the behaviour change belong in their own commit. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../vitorpamplona/marmotbench/EpochProbe.kt | 48 +++++++++++++++++++ .../com/vitorpamplona/marmotbench/Main.kt | 5 ++ 2 files changed, 53 insertions(+) create mode 100644 marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/EpochProbe.kt diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/EpochProbe.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/EpochProbe.kt new file mode 100644 index 0000000000..4a2b8c1e4b --- /dev/null +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/EpochProbe.kt @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.marmotbench + +import com.vitorpamplona.amethyst.commons.marmot.ingest +import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 +import com.vitorpamplona.quartz.nip01Core.core.toHexKey +import com.vitorpamplona.quartz.utils.RandomInstance +import kotlinx.coroutines.runBlocking + +// Counts the commits `create_group/N` actually publishes, so the README's +// claim about the shape difference against MDK is checked rather than assumed. +fun epochProbe() = + runBlocking { + val alice = Client("alice") + val bob = Client("bob") + val groupId = RandomInstance.bytes(32).toHexKey() + + alice.manager.createCurrentProfileGroup(groupId, listOf("wss://bench.invalid"), GroupProfileV1("probe", "")) + println("after createCurrentProfileGroup: epoch=${alice.manager.groupEpoch(groupId)}") + + val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) + val (commit, welcome) = alice.manager.addMember(groupId, kp, emptyList()) + println("after addMember: epoch=${alice.manager.groupEpoch(groupId)}") + println("commits published by addMember: 1 (kind ${commit.signedEvent.kind})") + println("welcome produced: ${welcome != null}") + + bob.manager.ingest(welcome!!.giftWrapEvent) + println("bob after joining: epoch=${bob.manager.groupEpoch(groupId)}") + } diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Main.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Main.kt index 3a8b35353d..8eb4761e0b 100644 --- a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Main.kt +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/Main.kt @@ -41,6 +41,11 @@ fun main(args: Array) { // the engine would make every number here fiction. Log.minLevel = LogLevel.ERROR + if (args.contains("--epoch-probe")) { + epochProbe() + return + } + val results = allBenchmarks(only) if (json) { From c6e1bc4e5aaf66f7994a5306759cfbefe5fbeff0 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 15:03:38 +0000 Subject: [PATCH 59/79] fix(marmot): merge the founding Add locally instead of publishing it MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit `protocol-core/publish-lifecycle.md`: "When founding creation includes initial invitees, the creator next prepares and locally merges one founding Add Commit from epoch 0 to epoch 1. That Commit also has an empty group-message publication obligation: the creator is the only pre-existing member, so no peer can be forked by failure to publish it." And: "The empty-obligation exception is limited to the epoch-0 creation and, when applicable, its immediately following founding Add Commit." We implemented the first half and missed the second. createGroup already satisfied an empty obligation for epoch 0, but the Add that follows went down the ordinary commitAndPublish path, which applies a commit only once a relay acknowledges it. So creating a group with initial members against an unreachable relay silently produced an empty epoch-0 group — the members were never added and the Welcomes were never sent — where the spec makes the Add canonical immediately and each Welcome an independent retryable delivery that "does not affect canonical group state". addMemberInvites now detects the founding case (epoch 0, creator the sole member), merges the Add locally, and returns a null commit event with the Welcomes. Nothing is published, which also stops spending a signature and an outer encryption on bytes with no audience, and stops leaving a kind:445 on relays that a joiner can receive before its Welcome — the reference calls that a "welcome-before-commit AlreadyAtEpoch bounce" and drops the commit for the same reason. The commit event is nullable rather than absent so every call site had to be looked at: the CLI reports founding_local_merge and publishes nothing, and the Android action logs the case instead of dereferencing. Test fallout was all one shape — suites that used create + addMember as SETUP were testing the exception rather than the rule. MarmotPublishBeforeApplyTest and MarmotPublishDurabilityTest now get past the founding add first, and gain direct coverage that a founding add merges even when the publisher rejects everything, and that the very next commit is ordinary. publish-fail/v1 is refused rather than passed. It fails the FOUNDING creation's outbound and expects epoch 0 with one member, which is the legacy lifecycle: MDK resolves the profile from application_profile and `None | Some("legacy")` means legacy, where create_group returns GroupCreated { pending }. Our old behaviour happened to match that. Weakening the fix to keep the vector green would reinstate the bug, so the runner refuses it by name via LegacyOnlyScenario and the test asserts the refusal. invite-publish-fail/v1 still runs in full: a rejected later invite is an ordinary commit either way. Also corrects this file's own README claim that create_group/N costs "one more commit" than MDK. Both do exactly one; only the publishing differed. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/model/AccountMarmotActions.kt | 18 +- .../cli/commands/GroupAddMemberCommand.kt | 22 ++- .../amethyst/commons/marmot/MarmotManager.kt | 108 +++++++++++- .../commons/marmot/MarmotLeaveProposalTest.kt | 9 +- .../marmot/MarmotManagerLeaveRejoinTest.kt | 9 +- .../marmot/MarmotPublishBeforeApplyTest.kt | 165 ++++++++++++++++-- .../marmot/MarmotPublishDurabilityTest.kt | 48 ++++- .../marmot/scenario/MarmotScenarioRunner.kt | 31 +++- .../scenario/MarmotScenarioVectorTest.kt | 29 ++- .../commons/marmot/scenario/ScenarioVector.kt | 26 +++ marmotBench/README.md | 29 ++- 11 files changed, 438 insertions(+), 56 deletions(-) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt index 5d3a9bdea0..68f49ee6fe 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt @@ -222,15 +222,23 @@ class AccountMarmotActions( manager.syncMetadataTo(nostrGroupId, chatroom) Log.d("MarmotDbg") { - "addMarmotGroupMember: built commit kind=${commitEvent.signedEvent.kind} id=${commitEvent.signedEvent.id.take(8)}… " + + val commit = + commitEvent?.let { "kind=${it.signedEvent.kind} id=${it.signedEvent.id.take(8)}…" } + ?: "none (founding add, merged locally)" + "addMarmotGroupMember: built commit $commit " + "welcomeDelivery=${if (welcomeDelivery != null) "present(giftWrapId=${welcomeDelivery.giftWrapEvent.id.take(8)}…)" else "null"}" } - // The commit was published by the manager, which only advances the - // group once a relay acknowledged it (publish-before-apply). Publishing - // it again here would just duplicate the event. + // Nothing to publish here either way. A normal commit was already + // published by the manager, which only advances the group once a relay + // acknowledged it (publish-before-apply); publishing it again would + // just duplicate the event. A FOUNDING add has no commit at all — the + // creator was the group's only member, so it merges locally under the + // empty publication obligation and the invitee gets epoch 1 from the + // Welcome. Log.d("MarmotDbg") { - "addMarmotGroupMember: commit kind:${commitEvent.signedEvent.kind} published to ${groupRelays.size} relay(s)" + commitEvent?.let { "addMarmotGroupMember: commit kind:${it.signedEvent.kind} published to ${groupRelays.size} relay(s)" } + ?: "addMarmotGroupMember: founding add merged locally, no commit published" } // Then send the Welcome gift wrap to the new member. diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupAddMemberCommand.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupAddMemberCommand.kt index 478a14fd78..9fd4563f32 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupAddMemberCommand.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupAddMemberCommand.kt @@ -111,9 +111,20 @@ object GroupAddMemberCommand { relays = groupRelays.toList(), ) - // Order matters: commit first (so invitee doesn't join at a future epoch), - // then welcome. - val commitAck = ctx.publish(commitEvent.signedEvent, groupRelays) + // Order matters: commit first (so invitee doesn't join at a future + // epoch), then welcome. + // + // A FOUNDING add returns no commit at all: the creator was the + // group's only member, so the Add is merged locally under the + // empty publication obligation and the invitee learns epoch 1 + // from the Welcome's own GroupInfo. There is nothing to send + // first, and nothing whose acknowledgement to wait for. + val commitAck = + if (commitEvent != null) { + ctx.publish(commitEvent.signedEvent, groupRelays) + } else { + emptyMap() + } val welcomeTargets: Set = if (welcomeDelivery != null) { // Welcome gift wrap (kind:1059 wrapping kind:444) must @@ -157,7 +168,10 @@ object GroupAddMemberCommand { "pubkey" to pub, "status" to "invited", "key_package_event_id" to kpEvent.id, - "commit_event_id" to commitEvent.signedEvent.id, + "commit_event_id" to commitEvent?.signedEvent?.id, + // Null commit_event_id is not a failure — it is the + // founding add, which publishes no group message. + "founding_local_merge" to (commitEvent == null), "welcome_event_id" to welcomeDelivery?.giftWrapEvent?.id, "commit_accepted_by" to commitAck.filterValues { it.accepted }.keys.map { it.url }, "welcome_accepted_by" to welcomeAck.filterValues { it.accepted }.keys.map { it.url }, diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index e93f62b3d2..c17e1e7c72 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -678,7 +678,7 @@ class MarmotManager( nostrGroupId: HexKey, keyPackageEvent: KeyPackageEvent, relays: List, - ): Pair { + ): Pair { val (event, welcomes) = addMembers(nostrGroupId, listOf(keyPackageEvent), relays) return Pair(event, welcomes.firstOrNull()) } @@ -693,7 +693,7 @@ class MarmotManager( keyPackageBytes: ByteArray, keyPackageEventId: HexKey, relays: List, - ): Pair { + ): Pair { val (event, welcomes) = addMemberInvites( nostrGroupId, @@ -712,7 +712,7 @@ class MarmotManager( nostrGroupId: HexKey, keyPackageEvents: List, relays: List, - ): Pair> = + ): Pair> = addMemberInvites( nostrGroupId = nostrGroupId, invites = @@ -739,14 +739,18 @@ class MarmotManager( * Noise) batches this way, so a per-invitee commit loop would diverge from * the reference on epoch numbers and round trips alike. * - * Returns the single commit GroupEvent to publish, and one WelcomeDelivery + * Returns the commit GroupEvent that was published, and one WelcomeDelivery * per invitee — empty if the commit was not confirmed by any relay. + * + * The event is NULL for a founding add, which publishes no commit at all; + * see [isFoundingAdd]. Callers must treat null as "there is nothing to + * deliver to peers", not as failure — the Welcomes are the delivery. */ suspend fun addMemberInvites( nostrGroupId: HexKey, invites: List, relays: List, - ): Pair> { + ): Pair> { require(invites.isNotEmpty()) { "addMemberInvites: invites must not be empty" } require(invites.map { it.memberPubKey }.toSet().size == invites.size) { "addMemberInvites: the same member appears twice in one commit" @@ -769,6 +773,14 @@ class MarmotManager( kp } + // The BARE KeyPackages, not the bytes as published. Transport framing + // is the Marmot layer's business; MLS takes the struct. + val keyPackageBytes = decoded.map { it.toTlsBytes() } + + if (isFoundingAdd(nostrGroupId)) { + return commitFoundingAdd(nostrGroupId, invites, relays, keyPackageBytes) + } + // Per RFC 9420 §12.4 (and MDK), the outbound kind:445 MUST be // outer-encrypted with the pre-commit (epoch-N) exporter secret so // that other existing members still at epoch N can decrypt and @@ -776,9 +788,7 @@ class MarmotManager( // that key. val publication = commitAndPublish(nostrGroupId, relays) { - // The BARE KeyPackages, not the bytes as published. Transport - // framing is the Marmot layer's business; MLS takes the struct. - groupManager.stageAddMembers(nostrGroupId, decoded.map { it.toTlsBytes() }) + groupManager.stageAddMembers(nostrGroupId, keyPackageBytes) } // The Welcomes are SEPARATE, retryable per-invitee delivery obligations @@ -803,6 +813,88 @@ class MarmotManager( return Pair(publication.event, welcomeDeliveries) } + /** + * Is the next Add the group's FOUNDING Add — the one immediately after + * one-member epoch-0 creation? + * + * True only while the group is at epoch 0 and the creator is its sole + * member. Both conditions matter: epoch 0 alone is not enough, because a + * group that has already merged its founding Add is at epoch 1, and a + * sole-member group at a later epoch (everyone else removed) is an + * ordinary group whose commits peers may still be waiting for. + */ + private fun isFoundingAdd(nostrGroupId: HexKey): Boolean { + val group = groupManager.getGroup(nostrGroupId) ?: return false + return group.epoch == 0L && group.currentMemberIdentities().size == 1 + } + + /** + * Merge the founding Add Commit locally and send only the Welcomes. + * + * `protocol-core/publish-lifecycle.md`: "When founding creation includes + * initial invitees, the creator next prepares and locally merges one + * founding Add Commit from epoch 0 to epoch 1. That Commit also has an + * empty group-message publication obligation: the creator is the only + * pre-existing member, so no peer can be forked by failure to publish it." + * + * So this is NOT publish-before-apply. There is no peer at epoch 0 to fork, + * and every invitee learns the epoch-1 state from the Welcome's GroupInfo + * and ratchet tree rather than from the commit. Publishing it anyway did + * three bad things: it made group creation with invitees depend on a relay + * acknowledgement that the spec does not require, so a creation against an + * unreachable relay silently produced an empty epoch-0 group; it spent a + * signature and an outer encryption on bytes with no audience; and it left + * a kind:445 on relays that a joiner can receive BEFORE its Welcome, which + * the reference implementation calls a "welcome-before-commit AlreadyAtEpoch + * bounce" and avoids for the same reason. + * + * The exception stops here. This is the last commit that skips the publish + * obligation; every later one takes [commitAndPublish]. + */ + private suspend fun commitFoundingAdd( + nostrGroupId: HexKey, + invites: List, + relays: List, + keyPackageBytes: List, + ): Pair> { + requireOutboundAllowed(nostrGroupId, "add the founding members") + Log.d("MarmotManager") { + "commitFoundingAdd($nostrGroupId): ${invites.size} founding invitee(s), merging locally" + } + + val staged = groupManager.stageAddMembers(nostrGroupId, keyPackageBytes) + + // Straight to canonical. No obligation is prepared, so there is no + // record that could later be retried or resolved — which is the point: + // an obligation with no recipients is one the gate would have to + // invent an outcome for. + groupManager.installState(nostrGroupId, staged.pendingState) + publishGate.satisfyEmptyObligation(nostrGroupId) + + // The same derived rows a confirmed commit gets. Deliberately WITHOUT + // recordLocalCommit and markMessageProcessed: both exist to reconcile + // a commit that went to relays, and this one never did. + recordRetentionForCurrentEpoch(nostrGroupId) + syncGroupSystemRows(nostrGroupId, actor = signer.pubKey) + + // Each Welcome is its own retryable per-invitee delivery obligation, + // and unlike the published path they are sent unconditionally: the Add + // is already canonical, so there is no "commit nobody accepted" case in + // which a Welcome would invite someone into a group that exists nowhere. + val welcomeDeliveries = + invites.mapNotNull { invite -> + welcomeSender.wrapWelcome( + commitResult = staged.result, + recipientPubKey = invite.memberPubKey, + keyPackageEventId = invite.keyPackageEventId, + relays = relays, + nostrGroupId = nostrGroupId, + ) + } + + return Pair(null, welcomeDeliveries) + } + /** * Create a new MLS group. * diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotLeaveProposalTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotLeaveProposalTest.kt index 4408021624..cbd5b71043 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotLeaveProposalTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotLeaveProposalTest.kt @@ -28,6 +28,7 @@ import kotlin.test.Test import kotlin.test.assertEquals import kotlin.test.assertIs import kotlin.test.assertNotNull +import kotlin.test.assertNull import kotlin.test.assertTrue /** @@ -71,9 +72,11 @@ class MarmotLeaveProposalTest { ) val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) + // A founding add publishes no commit, so there is no echo for + // Alice to re-ingest: the Welcome is the whole delivery. val (commit, welcome) = alice.manager.addMember(nostrGroupId, kp, emptyList()) + assertNull(commit, "the founding add publishes no commit") bob.manager.ingest(welcome!!.giftWrapEvent) - alice.manager.ingest(commit.signedEvent) assertEquals(2, alice.manager.memberCount(nostrGroupId)) // Bob departs. The proposal is all he can produce. @@ -126,13 +129,13 @@ class MarmotLeaveProposalTest { ), emptyList(), ) + assertNull(commit, "the founding add publishes no commit, however many invitees it carries") welcomes.forEach { delivery -> when (delivery.recipientPubKey) { bob.signer.pubKey -> bob.manager.ingest(delivery.giftWrapEvent) carol.signer.pubKey -> carol.manager.ingest(delivery.giftWrapEvent) } } - alice.manager.ingest(commit.signedEvent) assertEquals(3, alice.manager.memberCount(nostrGroupId)) // Carol departs. Her proposal reaches everyone, as it does on the @@ -178,8 +181,8 @@ class MarmotLeaveProposalTest { ) val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) val (commit, welcome) = alice.manager.addMember(nostrGroupId, kp, emptyList()) + assertNull(commit, "the founding add publishes no commit") bob.manager.ingest(welcome!!.giftWrapEvent) - alice.manager.ingest(commit.signedEvent) // Bob departs and alice stages his proposal — then alice's process // dies before anyone commits it. diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManagerLeaveRejoinTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManagerLeaveRejoinTest.kt index 1fc694f21c..51c248077f 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManagerLeaveRejoinTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManagerLeaveRejoinTest.kt @@ -111,10 +111,11 @@ class MarmotManagerLeaveRejoinTest { "Joining must register a subscription for the group", ) - // The commit that added Bob also arrives at Alice (echo) — ingest - // is idempotent: her own pipeline marks the id processed before - // publish, so a replay routes to Ignored. - assertIs(alice.manager.ingest(commitEvent1.signedEvent)) + // Alice's first add is the FOUNDING add: she was the group's only + // member, so it merges locally under the empty publication + // obligation and no commit is published. There is therefore no echo + // to come back to her — the Welcome above was the whole delivery. + assertNull(commitEvent1, "the founding add publishes no commit") // Step 3: Alice sends a kind:9 inner event. Bob ingests the kind:445. val helloBefore = "hello before leave" diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt index bc15a68cb5..1d36ed7931 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt @@ -70,8 +70,33 @@ class MarmotPublishBeforeApplyTest { val groupId: String, val bobKeyPackage: ByteArray, val bobPubKey: String, + val carolKeyPackage: ByteArray, + val carolPubKey: String, ) + /** + * A group with one founding member already added, so the NEXT commit is an + * ordinary one. + * + * Publish-before-apply governs every commit except creation and the + * founding Add that may follow it, so a test of the rule has to get past + * both first — otherwise it measures the exception it is not about. The + * founding add publishes nothing, so [RecordingPublisher.published] is + * cleared and every later assertion counts only ordinary commits. + */ + private suspend fun foundedFixture(accepts: Boolean): Fixture { + val fx = fixture(accepts) + fx.manager.addMember( + nostrGroupId = fx.groupId, + memberPubKey = fx.bobPubKey, + keyPackageBytes = fx.bobKeyPackage, + keyPackageEventId = "c".repeat(64), + relays = listOf(relay), + ) + fx.publisher.published.clear() + return fx + } + private suspend fun fixture(accepts: Boolean): Fixture { val publisher = RecordingPublisher(accepts) val signer = NostrSignerInternal(KeyPair()) @@ -96,7 +121,20 @@ class MarmotPublishBeforeApplyTest { manager.groupManager .getGroup(groupId)!! .createKeyPackage(bob.pubKey, ByteArray(0)) - return Fixture(manager, publisher, groupId, bundle.keyPackage.toTlsBytes(), bob.pubKey.toHexKey()) + val carol = KeyPair() + val carolBundle = + manager.groupManager + .getGroup(groupId)!! + .createKeyPackage(carol.pubKey, ByteArray(0)) + return Fixture( + manager, + publisher, + groupId, + bundle.keyPackage.toTlsBytes(), + bob.pubKey.toHexKey(), + carolBundle.keyPackage.toTlsBytes(), + carol.pubKey.toHexKey(), + ) } /** @@ -118,11 +156,98 @@ class MarmotPublishBeforeApplyTest { assertTrue(fx.publisher.published.isEmpty(), "creating a group publishes no group message") } + /** + * The founding Add is the second half of the creation exception: it is + * merged locally and NOTHING is published, even though a member is joining. + * + * `protocol-core/publish-lifecycle.md`: "When founding creation includes + * initial invitees, the creator next prepares and locally merges one + * founding Add Commit from epoch 0 to epoch 1. That Commit also has an + * empty group-message publication obligation: the creator is the only + * pre-existing member, so no peer can be forked by failure to publish it." + * + * The publisher here REJECTS everything, which is the point: a relay that + * accepts nothing must not be able to stop a group from being founded with + * its initial members. + */ + @Test + fun theFoundingAddMergesLocallyEvenWhenNoRelayAcceptsAnything() = + runBlocking { + val fx = fixture(accepts = false) + + val (commit, welcome) = + fx.manager.addMember( + nostrGroupId = fx.groupId, + memberPubKey = fx.bobPubKey, + keyPackageBytes = fx.bobKeyPackage, + keyPackageEventId = "c".repeat(64), + relays = listOf(relay), + ) + + assertEquals(null, commit, "a founding add publishes no commit") + assertTrue(fx.publisher.published.isEmpty(), "and offers none to a relay") + assertEquals( + 1L, + fx.manager.groupManager + .getGroup(fx.groupId)!! + .epoch, + "the founding add is canonical regardless of the relay", + ) + assertEquals( + setOf(fx.manager.signer.pubKey, fx.bobPubKey), + fx.manager.groupManager + .getGroup(fx.groupId)!! + .currentMemberIdentities(), + ) + // The Welcome is the delivery, and it is produced unconditionally: + // the Add is already canonical, so there is no "epoch nobody + // accepted" that it could be inviting someone into. + assertTrue(welcome != null, "the invitee still gets a Welcome") + assertEquals(GroupLifecycleState.STABLE, fx.manager.lifecycle(fx.groupId)) + assertTrue( + fx.manager.publishGate + .pendingFor(fx.groupId) + .isEmpty(), + "no obligation is left behind for a commit that was never owed", + ) + } + + /** + * The exception stops after the founding Add. The very next commit is + * ordinary and must be published before it applies. + */ + @Test + fun theCommitAfterTheFoundingAddIsOrdinary() = + runBlocking { + val fx = foundedFixture(accepts = false) + + val (commit, welcome) = + fx.manager.addMember( + nostrGroupId = fx.groupId, + memberPubKey = fx.carolPubKey, + keyPackageBytes = fx.carolKeyPackage, + keyPackageEventId = "d".repeat(64), + relays = listOf(relay), + ) + + assertTrue(commit != null, "an ordinary add builds a commit to publish") + assertEquals(1, fx.publisher.published.size, "and offers it to the relay") + assertEquals( + 1L, + fx.manager.groupManager + .getGroup(fx.groupId)!! + .epoch, + "which no relay accepted, so the group did not move", + ) + assertEquals(null, welcome) + assertEquals(GroupLifecycleState.PENDING_PUBLISH, fx.manager.lifecycle(fx.groupId)) + } + /** An acknowledged commit becomes canonical and the group returns to Stable. */ @Test fun anAcknowledgedCommitBecomesCanonical() = runBlocking { - val fx = fixture(accepts = true) + val fx = foundedFixture(accepts = true) val before = fx.manager.groupManager .getGroup(fx.groupId)!! @@ -130,9 +255,9 @@ class MarmotPublishBeforeApplyTest { fx.manager.addMember( nostrGroupId = fx.groupId, - memberPubKey = fx.bobPubKey, - keyPackageBytes = fx.bobKeyPackage, - keyPackageEventId = "c".repeat(64), + memberPubKey = fx.carolPubKey, + keyPackageBytes = fx.carolKeyPackage, + keyPackageEventId = "d".repeat(64), relays = listOf(relay), ) @@ -158,7 +283,7 @@ class MarmotPublishBeforeApplyTest { @Test fun anUnacknowledgedCommitNeverBecomesCanonical() = runBlocking { - val fx = fixture(accepts = false) + val fx = foundedFixture(accepts = false) val beforeEpoch = fx.manager.groupManager .getGroup(fx.groupId)!! @@ -172,9 +297,9 @@ class MarmotPublishBeforeApplyTest { val (_, welcome) = fx.manager.addMember( nostrGroupId = fx.groupId, - memberPubKey = fx.bobPubKey, - keyPackageBytes = fx.bobKeyPackage, - keyPackageEventId = "c".repeat(64), + memberPubKey = fx.carolPubKey, + keyPackageBytes = fx.carolKeyPackage, + keyPackageEventId = "d".repeat(64), relays = listOf(relay), ) @@ -209,7 +334,7 @@ class MarmotPublishBeforeApplyTest { @Test fun anOutboundGateBlocksNewCommits() = runBlocking { - val fx = fixture(accepts = true) + val fx = foundedFixture(accepts = true) assertTrue(fx.manager.publishGate.canPrepareLocalCommit(fx.groupId)) fx.manager.publishGate.raiseGate(fx.groupId, LocalOutboundGate.LEAVING) @@ -249,12 +374,16 @@ class MarmotPublishBeforeApplyTest { @Test fun anUnconfirmedPublishHoldsTheGroupInsteadOfStartingOver() = runBlocking { - val fx = fixture(accepts = false) + val fx = foundedFixture(accepts = false) + val heldEpoch = + fx.manager.groupManager + .getGroup(fx.groupId)!! + .epoch fx.manager.addMember( nostrGroupId = fx.groupId, - memberPubKey = fx.bobPubKey, - keyPackageBytes = fx.bobKeyPackage, - keyPackageEventId = "c".repeat(64), + memberPubKey = fx.carolPubKey, + keyPackageBytes = fx.carolKeyPackage, + keyPackageEventId = "d".repeat(64), relays = listOf(relay), ) @@ -268,7 +397,7 @@ class MarmotPublishBeforeApplyTest { ) // Reading is unaffected; only advancing the group is blocked. assertEquals( - 0L, + heldEpoch, fx.manager.groupManager .getGroup(fx.groupId)!! .epoch, @@ -278,9 +407,9 @@ class MarmotPublishBeforeApplyTest { assertFailsWith { fx.manager.addMember( nostrGroupId = fx.groupId, - memberPubKey = fx.bobPubKey, - keyPackageBytes = fx.bobKeyPackage, - keyPackageEventId = "c".repeat(64), + memberPubKey = fx.carolPubKey, + keyPackageBytes = fx.carolKeyPackage, + keyPackageEventId = "d".repeat(64), relays = listOf(relay), ) } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishDurabilityTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishDurabilityTest.kt index 7f3e6998c3..b168f05cdb 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishDurabilityTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishDurabilityTest.kt @@ -143,6 +143,27 @@ class MarmotPublishDurabilityTest { relays = listOf(relay.url), ), ) + + // Get past the FOUNDING add first. It merges locally under the + // empty publication obligation (`publish-lifecycle.md`) and + // publishes nothing, so it is not a commit publish-before-apply + // governs — a durability test that used it would be testing the + // exception instead of the rule. + val founder = KeyPair() + first.addMember( + nostrGroupId = groupId, + memberPubKey = founder.pubKey.toHexKey(), + keyPackageBytes = + first.groupManager + .getGroup(groupId)!! + .createKeyPackage(founder.pubKey, ByteArray(0)) + .keyPackage + .toTlsBytes(), + keyPackageEventId = "f".repeat(64), + relays = listOf(relay), + ) + publisher.published.clear() + val bob = KeyPair() val bundle = first.groupManager @@ -161,7 +182,7 @@ class MarmotPublishDurabilityTest { ) } assertEquals(GroupLifecycleState.PENDING_PUBLISH, first.lifecycle(groupId)) - assertEquals(0L, first.groupManager.getGroup(groupId)!!.epoch) + assertEquals(1L, first.groupManager.getGroup(groupId)!!.epoch, "the founding add stands; the refused one did not apply") assertEquals(1, obligations.entries.size, "an unacknowledged commit leaves its obligation durable") val recordedBytes = obligations.entries.values @@ -181,7 +202,7 @@ class MarmotPublishDurabilityTest { "the retry republishes the same event, not a replacement commit for the same epoch", ) assertEquals(GroupLifecycleState.STABLE, second.lifecycle(groupId)) - assertEquals(1L, second.groupManager.getGroup(groupId)!!.epoch, "the acknowledged commit applies") + assertEquals(2L, second.groupManager.getGroup(groupId)!!.epoch, "the acknowledged commit applies") assertTrue(obligations.entries.isEmpty(), "a resolved obligation is deleted") assertTrue(recordedBytes.isNotEmpty()) } @@ -204,6 +225,27 @@ class MarmotPublishDurabilityTest { relays = listOf(relay.url), ), ) + + // Get past the FOUNDING add first. It merges locally under the + // empty publication obligation (`publish-lifecycle.md`) and + // publishes nothing, so it is not a commit publish-before-apply + // governs — a durability test that used it would be testing the + // exception instead of the rule. + val founder = KeyPair() + first.addMember( + nostrGroupId = groupId, + memberPubKey = founder.pubKey.toHexKey(), + keyPackageBytes = + first.groupManager + .getGroup(groupId)!! + .createKeyPackage(founder.pubKey, ByteArray(0)) + .keyPackage + .toTlsBytes(), + keyPackageEventId = "f".repeat(64), + relays = listOf(relay), + ) + publisher.published.clear() + val carol = KeyPair() val bundle = first.groupManager @@ -226,7 +268,7 @@ class MarmotPublishDurabilityTest { // on, which is what stops a new commit stacking on an epoch peers // never accepted. assertEquals(GroupLifecycleState.PENDING_PUBLISH, second.lifecycle(groupId)) - assertEquals(0L, second.groupManager.getGroup(groupId)!!.epoch) + assertEquals(1L, second.groupManager.getGroup(groupId)!!.epoch, "still held at the founding epoch") assertEquals(1, obligations.entries.size) assertTrue(bundle.keyPackage.toTlsBytes().isNotEmpty()) } diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt index b10517c809..83ba2a20ea 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioRunner.kt @@ -325,13 +325,42 @@ class MarmotScenarioRunner( // single Commit and a single Welcome carrying N EncryptedGroupSecrets. // Adding them one at a time would burn an epoch per invitee and the // traces would no longer line up. - val (_, deliveries) = + val (commit, deliveries) = inviter.manager.addMembers( nostrGroupId = groupId, keyPackageEvents = bundles.map { it.second }, relays = emptyList(), ) + // A FOUNDING add publishes no commit, so the publisher stub — which is + // what normally consumes a step's outcome — is never called. The vector + // still labels this step (`pending: "create"`) and acknowledges it, + // because the obligation founding creation owes is the per-invitee + // WELCOME delivery, not a group message: publish-lifecycle.md makes the + // founding Add Commit's own obligation empty and each Welcome a separate + // retryable delivery. Consume the outcome here so it resolves against + // the right label — and so every later publication still lines up with + // its own, since the queue is consumed in order. + val accepted = + if (commit == null) { + nextOutcome(inviter.name) + } else { + true + } + if (!accepted) { + // The founding creation's outbound was rejected. Under the legacy + // profile these vectors are written for, the founding Add is + // publish-gated and the group would stay at epoch 0 with one + // member; under ours it is already canonical and only the Welcome + // delivery failed. That is the single point where the two creation + // lifecycles disagree, so the vector is refused by name instead of + // being replayed into an expectation it cannot meet. + throw LegacyOnlyScenario( + "the founding creation's outbound was rejected, which only holds the group at " + + "epoch 0 under the legacy publish-gated creation lifecycle", + ) + } + val byPubKey = bundles.associate { (invitee, _) -> invitee.signer.pubKey to invitee } deliveries.forEach { delivery -> // The Welcome goes straight to its recipient's inbox. Gift-wrap diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt index 84b160ddf3..9f88a38776 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/MarmotScenarioVectorTest.kt @@ -68,8 +68,35 @@ class MarmotScenarioVectorTest { @Test fun multigroupIsolation() = replay("multigroup-isolation.v1.json") + /** + * `publish-fail/v1` is the one vector our creation lifecycle cannot + * replay, and that is a profile difference rather than a defect. + * + * It fails the FOUNDING creation's outbound and then expects alice at + * epoch 0 with one member. That is the legacy lifecycle: MDK resolves a + * vector's profile from `application_profile`, this vector declares none, + * and `None | Some("legacy")` means legacy — where `create_group` returns + * `GroupCreated { pending }` and the founding Add waits on the publish. + * A current-profile client returns `FoundingGroupCreated` with no pending + * publication, because `protocol-core/publish-lifecycle.md` gives the + * founding Add an empty group-message obligation and makes each Welcome an + * independent delivery that "does not affect canonical group state". + * + * So the vector is asserted to be REFUSED, by name and for that reason. + * The alternative — publish-gating our founding Add so this vector passes + * — would mean a group creation that an unreachable relay can silently + * turn into an empty epoch-0 group, which is the bug this fix removed. + * `invite-publish-fail/v1` still runs: a rejected LATER invite is an + * ordinary commit and behaves identically under both profiles. + */ @Test - fun publishFail() = replay("publish-fail.v1.json") + fun publishFailIsLegacyOnlyAndIsRefused() { + val failure = assertFailsWith { replay("publish-fail.v1.json") } + assertTrue( + failure.message!!.contains("founding creation"), + "the refusal must name the founding creation, not just fail", + ) + } @Test fun invitePublishFail() = replay("invite-publish-fail.v1.json") diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt index 7a2f973dd2..9012a9f92c 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/scenario/ScenarioVector.kt @@ -271,3 +271,29 @@ class UnsupportedScenarioOutcome( "expected outcome '$outcomeType' has no check in this runner — the vector is refused " + "rather than passed on the outcomes that happen to be modelled", ) + +/** + * Raised when a vector encodes the LEGACY creation lifecycle, which a + * current-profile client cannot exhibit. + * + * MDK picks the profile from the vector's `application_profile`, and + * `None | Some("legacy")` means legacy. Under that profile `create_group` + * returns `GroupCreated { pending }` and the founding Add is publish-gated, so + * a rejected creation leaves the group at epoch 0 with one member. Under the + * current profile it returns `FoundingGroupCreated` with no pending + * publication at all: `protocol-core/publish-lifecycle.md` gives the founding + * Add an empty group-message obligation, so it is canonical whatever happens + * to the Welcomes. + * + * Almost every vector here declares no profile and is therefore legacy, but + * the two only disagree observably when the FOUNDING creation's outbound + * fails — every other vector replays identically. Rather than weaken the + * implementation to match a profile we do not run, or quietly drop the vector, + * the runner refuses it by name and the test asserts the refusal. + */ +class LegacyOnlyScenario( + val reason: String, +) : IllegalStateException( + "this vector encodes the legacy creation lifecycle and cannot be replayed by a " + + "current-profile client: $reason", + ) diff --git a/marmotBench/README.md b/marmotBench/README.md index c71caed009..bf560d7abe 100644 --- a/marmotBench/README.md +++ b/marmotBench/README.md @@ -28,11 +28,22 @@ measured is the engine's own CPU cost. Setup is outside the measured window on both sides — criterion's `iter_batched(.., PerIteration)` there, an explicit `setup` lambda here. -**One shape difference, deliberately not hidden:** MDK folds invitees into the -founding group (`FoundingGroupCreated`), while we create at epoch 0 and add in -a second commit to epoch 1. `create_group/N` therefore includes one more commit -on our side. That is a real cost, and averaging it away would be the wrong kind -of favourable. +**On the shape of `create_group/N`.** An earlier version of this file claimed +we spend "one more commit" than MDK's founding creation. That was wrong, and +`--epoch-probe` exists to keep it honest: our `create` publishes nothing and +leaves epoch 0, `addMember` produces exactly one commit, and the invitee joins +at epoch 1. MLS permits nothing else — RFC 9420 section 11 requires a group to +be created with a single member — so MDK commits its founding Adds internally +too. Both sides do one commit's worth of ratchet work. + +What did differ is that we PUBLISHED that founding commit and MDK does not. +`protocol-core/publish-lifecycle.md` gives the founding Add an empty +group-message publication obligation, because the creator is the only +pre-existing member and no peer can be forked by failing to publish it. We +implemented that exception for the epoch-0 creation and missed that it extends +to the Add immediately after. It is fixed now: the founding Add merges locally +and only the Welcomes go out, which is both what the spec says and what the +reference implementation does. ## Why allocation is reported next to latency @@ -149,10 +160,10 @@ differ; `alloc/op` reproduces to four significant figures): | `send_app_message` | 4.28 ms | 1.72 ms | 0.61 - 0.71 ms | **6.5x faster** | | `ingest_app_message` | (n/a) | 3.11 ms | 0.88 - 0.90 ms | — | -`create_group` remains the weakest row, and the shape difference in "What is -compared" is part of why: we create at epoch 0 and add in a second commit, -where MDK folds invitees into the founding group. `create_group/32` is also -still the noisiest row in the suite. +`create_group` remains the weakest row. Both sides do the same one commit (see +"What is compared"); what we additionally carried was publishing it, which the +founding-add fix has since removed. `create_group/32` is also still the noisiest +row in the suite. ### Why the constants can be trusted From 2d354f1ced2c6bf9c6126670ce0b04779115d0a0 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 15:08:09 +0000 Subject: [PATCH 60/79] perf(marmot): re-measure with the founding commit no longer published MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit marmotBench did not compile after the founding-add change — it was outside the modules I rebuilt when the commit event became nullable, so two call sites in it still dereferenced. Both are the same shape as the ones already fixed elsewhere: the ingest_app_message setup re-ingested its own commit as an echo, and the epoch probe printed the commit's kind. Neither has a commit to speak of now, and the probe says so: after createCurrentProfileGroup: epoch=0 after addMember: epoch=1 commits published by addMember: 0 (founding add, merged locally) bob after joining: epoch=1 The measured effect is smaller than "we removed a whole published event" suggests, and the README now says so precisely. Allocation per operation: create_group/0 unchanged at 81.3 KB — with no invitees there is no founding Add to skip — then -11% at one invitee (543.6 -> 482.5 KB), -6% at eight, and -1.4% at 32. The absolute saving grows with the invitee count because the commit that is no longer built carries N Adds; the fraction shrinks because the rest of the operation grows faster. Latency moved within run-to-run noise, so no latency claim is made for it. The reason to want the change is that creating a group with initial members no longer depends on a relay acknowledgement the spec never asked for. Full table refreshed from two runs: against MDK, create_group/1 is 1.5-1.6x slower, create_group/8 1.7x, create_group/32 2.6x, while join_welcome is 2.5x and send_app_message 6.5x FASTER. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- marmotBench/README.md | 58 +++++++++++++------ .../vitorpamplona/marmotbench/EpochProbe.kt | 5 +- .../marmotbench/MarmotBenchmarks.kt | 5 +- 3 files changed, 48 insertions(+), 20 deletions(-) diff --git a/marmotBench/README.md b/marmotBench/README.md index bf560d7abe..13f8a603b0 100644 --- a/marmotBench/README.md +++ b/marmotBench/README.md @@ -30,11 +30,13 @@ both sides — criterion's `iter_batched(.., PerIteration)` there, an explicit **On the shape of `create_group/N`.** An earlier version of this file claimed we spend "one more commit" than MDK's founding creation. That was wrong, and -`--epoch-probe` exists to keep it honest: our `create` publishes nothing and -leaves epoch 0, `addMember` produces exactly one commit, and the invitee joins -at epoch 1. MLS permits nothing else — RFC 9420 section 11 requires a group to -be created with a single member — so MDK commits its founding Adds internally -too. Both sides do one commit's worth of ratchet work. +`--epoch-probe` exists to keep it honest. It reported, before the founding-add +fix below: `create` publishes nothing and leaves epoch 0, `addMember` produces +exactly one commit, and the invitee joins at epoch 1. MLS permits nothing else +— RFC 9420 section 11 requires a group to be created with a single member — so +MDK commits its founding Adds internally too. Both sides do one commit's worth +of ratchet work. It now reports zero commits published for that same step, for +the reason in the next paragraph; re-run it rather than trusting this text. What did differ is that we PUBLISHED that founding commit and MDK does not. `protocol-core/publish-lifecycle.md` gives the founding Add an empty @@ -148,22 +150,44 @@ At 121us the scalar multiplication is now faster than SunEC's 160us, which is the useful sanity check on the result: it lands where a good managed-language implementation should, rather than somewhere suspiciously better. -Against MDK, over the whole suite (both post-rewrite runs shown where they -differ; `alloc/op` reproduces to four significant figures): +Against MDK, over the whole suite (two runs shown where they differ; `alloc/op` +reproduces to four significant figures): | operation | MDK (Rust) | quartz before | quartz now | vs MDK | |----------------------|------------|---------------|-----------------|--------------| -| `create_group/1` | 3.61 ms | 16.93 ms | 5.42 - 5.88 ms | 1.5-1.6x slower | -| `create_group/8` | 9.93 ms | 51.47 ms | 17.27 - 17.60 ms| 1.8x slower | -| `create_group/32` | 31.64 ms | 190.08 ms | 77.53 - 81.47 ms| 2.5x slower | -| `join_welcome` | 4.77 ms | 6.22 ms | 1.82 - 2.00 ms | **2.5x faster** | -| `send_app_message` | 4.28 ms | 1.72 ms | 0.61 - 0.71 ms | **6.5x faster** | -| `ingest_app_message` | (n/a) | 3.11 ms | 0.88 - 0.90 ms | — | +| `create_group/1` | 3.61 ms | 16.93 ms | 5.25 - 5.85 ms | 1.5-1.6x slower | +| `create_group/8` | 9.93 ms | 51.47 ms | 16.23 - 16.87 ms| 1.7x slower | +| `create_group/32` | 31.64 ms | 190.08 ms | 82.49 - 86.31 ms| 2.6x slower | +| `join_welcome` | 4.77 ms | 6.22 ms | 1.89 - 1.93 ms | **2.5x faster** | +| `send_app_message` | 4.28 ms | 1.72 ms | 0.63 - 0.68 ms | **6.5x faster** | +| `ingest_app_message` | (n/a) | 3.11 ms | 0.90 - 0.95 ms | — | -`create_group` remains the weakest row. Both sides do the same one commit (see -"What is compared"); what we additionally carried was publishing it, which the -founding-add fix has since removed. `create_group/32` is also still the noisiest -row in the suite. +`create_group` remains the weakest row, and `create_group/32` is still the +noisiest in the suite — its two runs here disagree by nearly 2.4x at p99. + +### What not publishing the founding commit was worth + +The founding-add fix removed a commit event that `create_group/N` used to +build, sign, outer-encrypt and publish for an audience of nobody. It is a +correctness fix first (see the commit), but it is also the one change in this +file whose benchmark effect is worth stating precisely, because it is smaller +than it sounds: + +| row | alloc before | alloc now | change | +|-------------------|--------------|-----------|--------| +| `create_group/0` | 81.3 KB | 81.3 KB | none | +| `create_group/1` | 543.6 KB | 482.5 KB | -11% | +| `create_group/8` | ~3 445 KB | 3 240 KB | -6% | +| `create_group/32` | 32 825 KB | 32 355 KB | -1.4% | + +`create_group/0` is unchanged and must be: with no invitees there is no +founding Add to skip publishing. The saving grows in absolute terms with the +invitee count (~61 KB, ~205 KB, ~470 KB) because the commit not being built +carries N Add proposals, but shrinks as a fraction because everything else in +the operation grows faster. Latency moved within run-to-run noise, so no +latency claim is made for it: the reason to want this change is that a group +creation no longer depends on a relay acknowledgement the spec never asked +for. ### Why the constants can be trusted diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/EpochProbe.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/EpochProbe.kt index 4a2b8c1e4b..c41f399ff5 100644 --- a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/EpochProbe.kt +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/EpochProbe.kt @@ -40,7 +40,10 @@ fun epochProbe() = val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) val (commit, welcome) = alice.manager.addMember(groupId, kp, emptyList()) println("after addMember: epoch=${alice.manager.groupEpoch(groupId)}") - println("commits published by addMember: 1 (kind ${commit.signedEvent.kind})") + println( + "commits published by addMember: " + + (commit?.let { "1 (kind ${it.signedEvent.kind})" } ?: "0 (founding add, merged locally)"), + ) println("welcome produced: ${welcome != null}") bob.manager.ingest(welcome!!.giftWrapEvent) diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt index d07e0aa65c..0b90775ebe 100644 --- a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt @@ -146,9 +146,10 @@ fun benchIngestAppMessage(): BenchResult = val groupId = newGroupId() alice.manager.createCurrentProfileGroup(groupId, listOf("wss://bench.invalid"), GroupProfileV1("bench", "")) val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) - val (commit, welcome) = alice.manager.addMember(groupId, kp, emptyList()) + // A founding add publishes no commit, so there is no echo for + // Alice to re-ingest — the Welcome is the whole delivery. + val (_, welcome) = alice.manager.addMember(groupId, kp, emptyList()) bob.manager.ingest(welcome!!.giftWrapEvent) - alice.manager.ingest(commit.signedEvent) val sent = alice.manager.buildTextMessage(groupId, PAYLOAD, persistOwn = false) bob to sent.outbound.signedEvent } From 6f9338e4cdb9f1d7ec7b6d196c1ea581d42f1f88 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 15:32:18 +0000 Subject: [PATCH 61/79] perf(marmot): benchmark commit ingest, and the message path by group size MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Two gaps, both of which turned out to be hiding something. **The message path ran on groups of one and two.** Latency is genuinely flat across group sizes — an application message is sealed under the sender's own ratchet and never touches the tree — so the head-to-head claim against MDK survives being parameterised. Allocation is not flat on the send side: 68.7 KB at zero members to 253.1 KB at 32, while the receive side moves 61.5 to 67.4 KB. The asymmetry is exact rather than mysterious. MlsGroupManager.encrypt calls persistGroup unconditionally, serialising the whole group state on every message sent; decrypt calls it only when the message was a Commit that advanced the epoch, so decrypting an application message persists nothing. Sending in a 32-member group therefore spends a full state serialisation to record what amounts to a generation-counter bump. The write is necessary — a sender generation reused after a crash is a nonce-reuse-class problem — but writing all of the state for it is heavier than the invariant needs. Recorded as a finding, not changed: send-path persistence is security-sensitive. **Commit ingest was measured by nobody**, here or in MDK, despite being the operation every member performs on every membership or settings change and the only one whose cost is meant to scale with the group. It grows 1 950 -> 2 367 -> 3 009 us from 1 to 32 members: 1.5x for a 32x bigger group, which is the log2 shape MLS predicts, since the UpdatePath carries one node per LEVEL of the tree. Allocation grows 5.7x to 1.4 MB, making it the largest single allocator in the suite and the row to watch on a phone. Two measurement lessons are written into the README rather than left implicit. An isolated --only=ingest_commit run reported no trend at all and put the one-member case slowest; that was JIT warm-up on the shared group builder, and the full-suite numbers are the trustworthy ones. And create_group/32 is now reported as a range (77.5 - 195.7 ms) instead of a figure: five runs produced four within 11% and one more than twice the rest, which is what the fewest-iterations row on a shared vCPU looks like. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- marmotBench/README.md | 100 +++++++++++++-- .../marmotbench/MarmotBenchmarks.kt | 119 ++++++++++++++---- 2 files changed, 186 insertions(+), 33 deletions(-) diff --git a/marmotBench/README.md b/marmotBench/README.md index 13f8a603b0..f3f3ca55d1 100644 --- a/marmotBench/README.md +++ b/marmotBench/README.md @@ -16,12 +16,18 @@ cd && cargo bench -p cgka-engine --bench group_lifecycle ## What is compared -| this module | MDK bench | -|-----------------------|-----------------------------| -| `create_group/N` | `bench_create_group` | -| `join_welcome` | `bench_join_welcome` | -| `send_app_message` | `bench_app_message_send` | -| `ingest_app_message` | `bench_app_message_ingest` | +| this module | MDK bench | +|--------------------------|-----------------------------| +| `create_group/N` | `bench_create_group` | +| `join_welcome` | `bench_join_welcome` | +| `send_app_message/N` | `bench_app_message_send` | +| `ingest_app_message/N` | `bench_app_message_ingest` | +| `ingest_commit/N` | (no counterpart) | + +`ingest_commit` has no MDK counterpart because neither suite had one. It is the +operation every member pays on every membership or settings change, and the +only one whose cost is supposed to grow with the group, so leaving it +unmeasured left the most load-bearing path in the protocol untested. Both sides exclude transport crypto and run over in-memory storage, so what is measured is the engine's own CPU cost. Setup is outside the measured window on @@ -157,13 +163,20 @@ reproduces to four significant figures): |----------------------|------------|---------------|-----------------|--------------| | `create_group/1` | 3.61 ms | 16.93 ms | 5.25 - 5.85 ms | 1.5-1.6x slower | | `create_group/8` | 9.93 ms | 51.47 ms | 16.23 - 16.87 ms| 1.7x slower | -| `create_group/32` | 31.64 ms | 190.08 ms | 82.49 - 86.31 ms| 2.6x slower | +| `create_group/32` | 31.64 ms | 190.08 ms | 77.5 - 195.7 ms | 2.5x - 6x (see below) | | `join_welcome` | 4.77 ms | 6.22 ms | 1.89 - 1.93 ms | **2.5x faster** | | `send_app_message` | 4.28 ms | 1.72 ms | 0.63 - 0.68 ms | **6.5x faster** | | `ingest_app_message` | (n/a) | 3.11 ms | 0.90 - 0.95 ms | — | -`create_group` remains the weakest row, and `create_group/32` is still the -noisiest in the suite — its two runs here disagree by nearly 2.4x at p99. +`create_group` remains the weakest row, and `create_group/32` is not just the +noisiest in the suite — it is the one number here that should not be quoted as +a single figure at all. Across five post-rewrite runs on this host its p50 came +out 77.5, 81.5, 82.5, 86.3 and 195.7 ms: four clustered within 11% of each +other and one more than twice the rest. The row has the fewest iterations in +the suite (each one has to build a 32-member group in setup) and this is a +shared cloud vCPU, so a single noisy neighbour moves it in a way it cannot move +the 300-iteration rows. Treat "roughly 2.5x MDK, occasionally much worse" as +the honest reading, and re-run before believing any movement in it. ### What not publishing the founding commit was worth @@ -204,3 +217,72 @@ non-canonical inputs such as `p` itself. The RFC 7748 and RFC 8032 vector suites, HPKE, the MDK crypto-interop vectors and the full quartz + commons suites all pass unchanged. + +## Group-size scaling: what the one-member benchmarks were hiding + +The original `send_app_message` and `ingest_app_message` rows ran on groups of +one and two members. That is the flattering case, and it hid a real asymmetry. + +Numbers from one full-suite run: + +| benchmark | p50 | alloc/op | +|------------------------------|---------|------------| +| `send_app_message/0 members` | 601 us | 68.7 KB | +| `send_app_message/1 members` | 553 us | 73.8 KB | +| `send_app_message/8 members` | 602 us | 117.1 KB | +| `send_app_message/32 members`| 691 us | 253.1 KB | +| `ingest_app_message/1` | 877 us | 61.5 KB | +| `ingest_app_message/8` | 951 us | 65.1 KB | +| `ingest_app_message/32` | 966 us | 67.4 KB | + +**Latency is flat**, which is what MLS promises: an application message is +sealed under the sender's own ratchet and never touches the tree, so the +cryptography does not care how many members there are. The comparison against +MDK's `send_app_message` therefore survives the parameterisation. + +**Allocation is not flat on the send side** — 3.5x from 0 to 32 members, while +the receive side barely moves. The cause is not subtle once looked at: + +- `MlsGroupManager.encrypt` calls `persistGroup` **unconditionally**, so the + whole group state, ratchet tree included, is serialised on every message + sent. +- `MlsGroupManager.decrypt` calls it **only** when the message was a Commit + that advanced the epoch. Decrypting an application message persists nothing. + +So a 32-member group allocates 252.8 KB to send a message and 67.1 KB to +receive one, and the difference is a full state serialisation performed to +record what amounts to a generation-counter bump. The write itself is +necessary — a sender generation reused after a crash is a nonce-reuse-class +problem — but writing the entire group state for it is heavier than the +invariant requires. Left as a finding rather than a change: send-path +persistence is security-sensitive and deserves its own decision, not a +drive-by. + +## `ingest_commit`: logarithmic in time, linear in allocation + +Receiving someone else's Commit, from one full-suite run: + +| benchmark | p50 | alloc/op | +|----------------------------|----------|-------------| +| `ingest_commit/1 members` | 1 950 us | 242.8 KB | +| `ingest_commit/8 members` | 2 367 us | 523.0 KB | +| `ingest_commit/32 members` | 3 009 us | 1 390.0 KB | + +Latency grows, but far slower than the member count: 1.5x for a 32x bigger +group. That is the shape MLS predicts. The UpdatePath a Commit carries has one +node per LEVEL of the ratchet tree, so the receiver goes from roughly one HPKE +open at two members to roughly five at thirty-three — a log2 curve, not a +linear one. + +Allocation grows 5.7x, tracking the size of the tree being parsed, rebuilt and +persisted rather than the number of curve operations. So `ingest_commit` is +mostly an allocation story, and it is the row to watch on a phone: every member +performs it on every membership or settings change, and at 1.4 MB it is by some +distance the largest single allocator in the suite. + +A caution about isolated runs of this row. A `--only=ingest_commit` run +reported 3 995 / 2 905 / 3 182 us — no trend at all, and the one-member case +SLOWEST. That was JIT warm-up: `ingest_commit/1` runs first and pays for +compiling the shared group builder. The monotonic full-suite numbers above are +the trustworthy ones, which is the general rule here — prefer a full run, and +distrust whichever row happens to go first. diff --git a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt index 0b90775ebe..57060c8d9c 100644 --- a/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt +++ b/marmotBench/src/main/kotlin/com/vitorpamplona/marmotbench/MarmotBenchmarks.kt @@ -94,6 +94,64 @@ fun benchCreateGroup(invitees: Int): BenchResult = } } +/** + * A group with [members] invitees already joined, at epoch 1. + * + * Built once per benchmark rather than per iteration where the operation under + * test does not consume it, because assembling a 32-member group costs more + * than everything being measured. + */ +private suspend fun groupWithMembers(members: Int): Triple, HexKey> { + val alice = Client("alice") + val groupId = newGroupId() + alice.manager.createCurrentProfileGroup(groupId, listOf("wss://bench.invalid"), GroupProfileV1("bench", "")) + val invitees = (0 until members).map { Client("member-$it") } + if (invitees.isNotEmpty()) { + val kps = invitees.map { it.manager.generateKeyPackageEvent(relays = emptyList()) } + val (_, welcomes) = alice.manager.addMembers(groupId, kps, emptyList()) + welcomes.forEach { delivery -> + invitees + .first { it.signer.pubKey == delivery.recipientPubKey } + .manager + .ingest(delivery.giftWrapEvent) + } + } + return Triple(alice, invitees, groupId) +} + +/** + * `ingest_commit/N` — receiving someone else's Commit. + * + * Nothing in this suite measured this, and neither does MDK's. It is the one + * operation every member pays on every membership or settings change, and the + * one that genuinely scales with group size: the UpdatePath it carries has a + * node per level of the ratchet tree, so the receiver's cost grows with + * log2(N) HPKE opens on top of the tree bookkeeping. + * + * Setup produces a FRESH commit per iteration — the group is built once, then + * Alice changes the profile each time — because ingesting the same commit + * twice is a no-op and would measure the dedup path instead. + */ +fun benchIngestCommit(members: Int): BenchResult { + val (alice, invitees, groupId) = + runBlocking { groupWithMembers(members) } + val bob = invitees.first() + var round = 0 + return measure( + name = "ingest_commit/$members members", + iterations = if (members >= 32) 40 else 100, + warmup = if (members >= 32) 10 else 30, + setup = { + runBlocking { + round++ + alice.manager.setGroupProfile(groupId, "bench-$round", "", emptyList()) + } + }, + ) { commit -> + runBlocking { bob.manager.ingest(commit.signedEvent) } + } +} + /** `join_welcome` — MDK's `bench_join_welcome`. The invitee's side of the add. */ fun benchJoinWelcome(): BenchResult = measure( @@ -115,17 +173,28 @@ fun benchJoinWelcome(): BenchResult = runBlocking { bob.manager.ingest(wrap as GiftWrapEvent) } } -/** `send_app_message` — MDK's `bench_app_message_send`. Encrypt + persist. */ -fun benchSendAppMessage(): BenchResult = +/** + * `send_app_message/N` — MDK's `bench_app_message_send`. Encrypt + persist. + * + * Parameterised by group size, which the single-member version of this + * benchmark hid. The MLS half is O(1) in the member count — an application + * message is sealed under the sender's own ratchet and never touches the tree + * — but `MlsGroupManager.encrypt` calls `persistGroup`, and THAT serialises + * the whole group state, ratchet tree included, on every send. So the cost per + * message has a term that grows with the group while the cryptography does + * not, and a one-member number is the flattering one. + * + * A fresh group per iteration, as before: sending accumulates rows in the + * message store, and reusing one group would measure that growth instead. + */ +fun benchSendAppMessage(members: Int): BenchResult = measure( - name = "send_app_message", - iterations = 300, - warmup = 100, + name = "send_app_message/$members members", + iterations = if (members >= 32) 50 else 300, + warmup = if (members >= 32) 15 else 100, setup = { runBlocking { - val alice = Client("alice") - val groupId = newGroupId() - alice.manager.createCurrentProfileGroup(groupId, listOf("wss://bench.invalid"), GroupProfileV1("bench", "")) + val (alice, _, groupId) = groupWithMembers(members) alice to groupId } }, @@ -133,23 +202,22 @@ fun benchSendAppMessage(): BenchResult = runBlocking { alice.manager.buildTextMessage(groupId, PAYLOAD) } } -/** `ingest_app_message` — MDK's `bench_app_message_ingest`. Decrypt + persist. */ -fun benchIngestAppMessage(): BenchResult = +/** + * `ingest_app_message/N` — MDK's `bench_app_message_ingest`. Decrypt + persist. + * + * Parameterised for the same reason as [benchSendAppMessage]: decryption is + * O(1) in the member count, but the receiver persists its group state too, and + * that is not. + */ +fun benchIngestAppMessage(members: Int): BenchResult = measure( - name = "ingest_app_message", - iterations = 200, - warmup = 60, + name = "ingest_app_message/$members members", + iterations = if (members >= 32) 50 else 200, + warmup = if (members >= 32) 15 else 60, setup = { runBlocking { - val alice = Client("alice") - val bob = Client("bob") - val groupId = newGroupId() - alice.manager.createCurrentProfileGroup(groupId, listOf("wss://bench.invalid"), GroupProfileV1("bench", "")) - val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) - // A founding add publishes no commit, so there is no echo for - // Alice to re-ingest — the Welcome is the whole delivery. - val (_, welcome) = alice.manager.addMember(groupId, kp, emptyList()) - bob.manager.ingest(welcome!!.giftWrapEvent) + val (alice, invitees, groupId) = groupWithMembers(members) + val bob = invitees.first() val sent = alice.manager.buildTextMessage(groupId, PAYLOAD, persistOwn = false) bob to sent.outbound.signedEvent } @@ -173,8 +241,11 @@ private val ALL: List BenchResult>> = // the founding-only baseline, so the rows line up for comparison. listOf(0, 1, 8, 32).forEach { n -> add("create_group/$n" to { benchCreateGroup(n) }) } add("join_welcome" to { benchJoinWelcome() }) - add("send_app_message" to { benchSendAppMessage() }) - add("ingest_app_message" to { benchIngestAppMessage() }) + // Group sizes on the message path, because its persistence cost scales + // with the member count even though its cryptography does not. + listOf(0, 1, 8, 32).forEach { n -> add("send_app_message/$n" to { benchSendAppMessage(n) }) } + listOf(1, 8, 32).forEach { n -> add("ingest_app_message/$n" to { benchIngestAppMessage(n) }) } + listOf(1, 8, 32).forEach { n -> add("ingest_commit/$n" to { benchIngestCommit(n) }) } addAll(primitiveBenchmarks()) } From 3db6cdc4a53d4aeddeee70eb9a698880a0d0e2ef Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 15:34:54 +0000 Subject: [PATCH 62/79] docs(marmot): match send_app_message against MDK's zero-invitee fixture MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit MDK's prepare_app_send builds its group with create_request(vec![]), so its sender is alone in the group. Now that our send row is parameterised by member count, the row that lines up is send_app_message/0 — naming it explicitly keeps the comparison matched instead of leaving a reader to assume the unparameterised number still applies. Ratio goes 6.5x to 7.1x faster on the matched pair. Also records why ingest_app_message has no MDK column: their bench binary panics in bench_deferred_outbound_preflight_matrix before reaching bench_app_message_ingest, so there is no reference number — not one we declined to use. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- marmotBench/README.md | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/marmotBench/README.md b/marmotBench/README.md index f3f3ca55d1..2977196258 100644 --- a/marmotBench/README.md +++ b/marmotBench/README.md @@ -165,8 +165,16 @@ reproduces to four significant figures): | `create_group/8` | 9.93 ms | 51.47 ms | 16.23 - 16.87 ms| 1.7x slower | | `create_group/32` | 31.64 ms | 190.08 ms | 77.5 - 195.7 ms | 2.5x - 6x (see below) | | `join_welcome` | 4.77 ms | 6.22 ms | 1.89 - 1.93 ms | **2.5x faster** | -| `send_app_message` | 4.28 ms | 1.72 ms | 0.63 - 0.68 ms | **6.5x faster** | -| `ingest_app_message` | (n/a) | 3.11 ms | 0.90 - 0.95 ms | — | +| `send_app_message/0` | 4.28 ms | 1.72 ms | 0.55 - 0.60 ms | **7.1x faster** | +| `ingest_app_message/1`| (n/a) | 3.11 ms | 0.88 - 0.95 ms | — | + +`send_app_message/0` is the row that lines up with MDK, not a flattering pick: +their `prepare_app_send` builds the group with `create_request(vec![])`, so +their sender is alone in it too. The `/1`, `/8` and `/32` rows have no MDK +counterpart. `ingest_app_message` has none either — MDK's bench binary panics +in `bench_deferred_outbound_preflight_matrix` before reaching +`bench_app_message_ingest`, so there is no reference number to compare against +rather than one we chose not to use. `create_group` remains the weakest row, and `create_group/32` is not just the noisiest in the suite — it is the one number here that should not be quoted as From 3db15da8eaa87bf41fd6431f48db5fa451e73902 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 15:41:24 +0000 Subject: [PATCH 63/79] test(marmot): pin what a legacy MIP-01 group can still do MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Groups created before the current profile existed are still on disk, and they can never become current-profile groups: the account identity proof lives in a member's own LeafNode and covers that leaf's signature key, so it cannot be added to leaves that already exist. AccountIdentityProofV2 states it outright — "There is no fallback and no in-place migration". The only route from a legacy room to a current-profile one is a new group and a re-invite. That makes the legacy contract worth pinning rather than rediscovering by hand each time someone tests an upgraded install. Messaging still works; disband (0x800c) and the URL avatar (0x8007) are GroupContext components a legacy group has nowhere to put, and both refuse up front with a message naming the reason rather than failing somewhere inside the commit. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../commons/marmot/LegacyGroupContractTest.kt | 123 ++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/LegacyGroupContractTest.kt diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/LegacyGroupContractTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/LegacyGroupContractTest.kt new file mode 100644 index 0000000000..b6c1a7643a --- /dev/null +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/LegacyGroupContractTest.kt @@ -0,0 +1,123 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.commons.marmot + +import com.vitorpamplona.quartz.marmot.appComponents.GroupAvatarUrlV1 +import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData +import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair +import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer +import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import kotlinx.coroutines.runBlocking +import kotlin.test.Test +import kotlin.test.assertFailsWith +import kotlin.test.assertFalse +import kotlin.test.assertTrue + +class LegacyGroupContractTest { + /** + * What a legacy MIP-01 group can and cannot still do. + * + * Groups created by builds before the current profile existed are still on + * disk, and they can NEVER become current-profile groups: the account + * identity proof lives in a member's own LeafNode and covers that leaf's + * signature key, so it cannot be added to leaves that already exist. See + * `AccountIdentityProofV2` — "There is no fallback and no in-place + * migration". The only route from a legacy room to a current-profile one is + * to create a new group and re-invite. + * + * That makes the legacy contract worth pinning rather than discovering by + * hand: messaging keeps working, and the operations whose state has no + * legacy carrier refuse with a message that says why instead of failing + * somewhere inside the commit. + */ + @Test + fun aLegacyGroupStillTalksButCannotDisbandOrCarryAnAvatar() = + runBlocking { + val relay = RelayUrlNormalizer.normalizeOrNull("wss://relay.example.com")!! + val signer = NostrSignerInternal(KeyPair()) + val manager = + MarmotManager( + signer, + ProbeStateStore(), + publisher = MarmotPublisher { _, _ -> true }, + ) + val gid = "b".repeat(64) + manager.createGroup( + gid, + MarmotGroupData(nostrGroupId = gid, adminPubkeys = listOf(signer.pubKey), relays = listOf(relay.url)), + ) + + assertFalse( + manager.groupView(gid)!!.isCurrentProfile, + "createGroup builds the legacy MIP-01 shape; createCurrentProfileGroup is the other one", + ) + + // Messaging is unaffected. A legacy room is still a usable room. + manager.buildTextMessage(gid, "hello from a legacy room") + + // Lifecycle (0x800c) and the URL avatar (0x8007) are GroupContext + // components a legacy group has nowhere to put, so both refuse up + // front and name the reason. + val disband = assertFailsWith { manager.disbandGroup(gid, listOf(relay)) } + assertTrue( + disband.message!!.contains("legacy MIP-01 group"), + "a refusal a tester will read: ${disband.message}", + ) + + val avatar = + assertFailsWith { + manager.setGroupAvatarUrl(gid, GroupAvatarUrlV1("https://x.invalid/a.png"), listOf(relay)) + } + assertTrue( + avatar.message!!.contains("legacy MIP-01 group"), + "a refusal a tester will read: ${avatar.message}", + ) + } + + private class ProbeStateStore : com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore { + private val states = mutableMapOf() + private val retained = mutableMapOf>() + + override suspend fun save( + nostrGroupId: String, + state: ByteArray, + ) { + states[nostrGroupId] = state + } + + override suspend fun load(nostrGroupId: String): ByteArray? = states[nostrGroupId] + + override suspend fun delete(nostrGroupId: String) { + states.remove(nostrGroupId) + } + + override suspend fun listGroups(): List = states.keys.toList() + + override suspend fun saveRetainedEpochs( + nostrGroupId: String, + retainedSecrets: List, + ) { + retained[nostrGroupId] = retainedSecrets + } + + override suspend fun loadRetainedEpochs(nostrGroupId: String): List = retained[nostrGroupId] ?: emptyList() + } +} From 6501e330d27ab1a86f3e4150ef72b5f160d978c9 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 15:47:33 +0000 Subject: [PATCH 64/79] test(marmot): a v3 state blob from the shipped build still loads MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The staged-proposal pool moved STATE_VERSION from 3 to 4, and nothing covered the case that decides what happens to every group already on disk: a blob the PREVIOUS build wrote being read by this one. There was a v1 test, from an older bump, and then nothing. v4 only appends, so for a group with nothing staged the new section is exactly one uint32 zero. That makes a genuine v3 blob obtainable by stripping those four bytes and moving the version word back — byte-for-byte what the previous build would have written, rather than a re-implementation of the old encoder that could drift from it. The test asserts the tail really is a zero count before relying on that. Asserts the blob parses, invents no staged proposals, keeps its epoch, and is a WORKING group afterwards: it encrypts and decrypts, and its exporter secret is unchanged. A parse that succeeds but derives different secrets would be the worse failure, and would look like a passing test without that last check. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../quartz/marmot/mls/MlsGroupStateTest.kt | 42 +++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt index 06cdd51403..81cba67a8a 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/mls/MlsGroupStateTest.kt @@ -299,6 +299,48 @@ class MlsGroupStateTest { assertContentEquals("post-restore".encodeToByteArray(), restored.decrypt(ct).content) } + /** + * The upgrade case that matters right now: a blob written by the build + * people are running today (STATE_VERSION 3) must still load. + * + * v4 only APPENDS the staged-proposal pool, so for a group with nothing + * staged that section is exactly one uint32 zero — which makes a genuine v3 + * blob obtainable by stripping those four bytes and moving the version word + * back. That is byte-for-byte what the previous build would have written, + * rather than a re-implementation of the old encoder that could drift from + * it. + */ + @Test + fun testDecodeV3StateBlobWrittenByThePreviousBuild() { + val group = MlsGroup.create("alice".encodeToByteArray()) + group.encrypt("advance the ratchet".encodeToByteArray()) + val state = group.saveState() + assertTrue(state.pendingProposals.isEmpty(), "nothing staged, so the v4 section is just a zero count") + + val v4Bytes = state.encodeTls() + val tail = v4Bytes.copyOfRange(v4Bytes.size - 4, v4Bytes.size) + assertContentEquals(byteArrayOf(0, 0, 0, 0), tail, "the empty staged-proposal pool is a uint32 zero") + + val v3Bytes = v4Bytes.copyOfRange(0, v4Bytes.size - 4) + // Move the version word back to 3. + v3Bytes[0] = 0 + v3Bytes[1] = 3 + + val decoded = MlsGroupState.decodeTls(v3Bytes) + assertTrue(decoded.pendingProposals.isEmpty(), "a v3 blob has no staged pool and must not invent one") + assertEquals(state.groupContext.epoch, decoded.groupContext.epoch) + + // And it is a working group afterwards, not just a parse that succeeded. + val restored = MlsGroup.restore(decoded) + val ct = restored.encrypt("post-upgrade".encodeToByteArray()) + assertContentEquals("post-upgrade".encodeToByteArray(), restored.decrypt(ct).content) + assertContentEquals( + group.exporterSecret("marmot", "test".encodeToByteArray(), 32), + restored.exporterSecret("marmot", "test".encodeToByteArray(), 32), + "the upgrade must not change any derived secret", + ) + } + /** * Re-encode a state in the original STATE_VERSION 1 layout: identical to * v2 but with the version tag set to 1 and no trailing ratchet section. From 3c3824511c4e6a00c81fa92f8446dc0c5bbaa353 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 16:04:03 +0000 Subject: [PATCH 65/79] fix(marmot): stop offering legacy groups actions they cannot perform MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Nothing in the Android Marmot UI knew what a legacy MIP-01 group was — grepping isCurrentProfile across the whole surface returned nothing. So an admin of a group created before the current profile saw the Disband button and the avatar-URL field, used them, and got a toast: those components have no carrier in a legacy group, and MarmotManager refuses before building the commit. Surface it as state rather than as an error. MarmotGroupChatroom gains isCurrentProfile, populated in syncMetadataTo from the group view, and the two screens read it: - Disband is hidden unless the viewer is an admin AND the group can express a lifecycle at all. An admin of a legacy group gets a line saying why, because a silently missing action is the more confusing outcome — the surprising part is that a NEW group would have it. - The avatar-URL field is replaced by its reason instead of shown and then rejected on save. The uploaded Blossom image still works there, which makes this a missing option rather than a missing feature. The save call is guarded too, so a later edit to the form cannot turn a hidden field back into a refused commit. Both strings say the group cannot be upgraded and a new one is the route. That is the part a user cannot infer: the identity proof lives in each member's own LeafNode and covers that leaf's signature key, so it cannot be added to leaves that already exist. isCurrentProfile defaults to TRUE on purpose. Creating a group does not run a metadata sync, and every group created now is current-profile, so a just-created room must show its full feature set immediately; a restored legacy room is corrected by the startup sync, which runs for every group before any screen reads it. setEncryptedMediaPolicy has the same legacy refusal but no Android UI, so disband and the avatar URL were the only two exposed paths. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../chats/marmotGroup/EditGroupInfoScreen.kt | 44 ++++++++++++++----- .../marmotGroup/MarmotGroupInfoScreen.kt | 24 +++++++++- .../composeResources/values/strings.xml | 2 + .../amethyst/commons/marmot/MarmotManager.kt | 3 ++ .../model/marmotGroups/MarmotGroupChatroom.kt | 25 +++++++++++ 5 files changed, 86 insertions(+), 12 deletions(-) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/EditGroupInfoScreen.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/EditGroupInfoScreen.kt index 40eb0300e2..c4498c5d7b 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/EditGroupInfoScreen.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/EditGroupInfoScreen.kt @@ -50,6 +50,7 @@ import com.vitorpamplona.amethyst.commons.resources.marmot_edit_info_footer import com.vitorpamplona.amethyst.commons.resources.marmot_group_description_placeholder import com.vitorpamplona.amethyst.commons.resources.marmot_group_name import com.vitorpamplona.amethyst.commons.resources.marmot_group_name_placeholder +import com.vitorpamplona.amethyst.commons.resources.marmot_legacy_group_no_avatar_url import com.vitorpamplona.amethyst.ui.actions.uploads.SelectedMedia import com.vitorpamplona.amethyst.ui.insets.imePaddingSafe import com.vitorpamplona.amethyst.ui.navigation.navs.INav @@ -75,6 +76,7 @@ fun EditGroupInfoScreen( val currentDescription by chatroom.description.collectAsStateWithLifecycle() val currentImage by chatroom.image.collectAsStateWithLifecycle() val currentAvatarUrl by chatroom.avatarUrl.collectAsStateWithLifecycle() + val isCurrentProfile by chatroom.isCurrentProfile.collectAsStateWithLifecycle() var name by remember(currentName) { mutableStateOf(currentName ?: "") } var description by remember(currentDescription) { mutableStateOf(currentDescription ?: "") } @@ -118,7 +120,12 @@ fun EditGroupInfoScreen( // separate commit — only made when it actually // changed, so saving a rename does not also // rewrite the avatar state. - if (avatarUrlChanged) { + // `isCurrentProfile` is belt-and-braces: the field + // is not shown on a legacy group, so the value + // cannot have changed. Guarding the call as well + // means a future edit to the form cannot turn a + // hidden field into a refused commit on save. + if (avatarUrlChanged && isCurrentProfile) { accountViewModel.setMarmotGroupAvatarUrl(nostrGroupId, avatarUrl.trim()) } launch(Dispatchers.Main) { @@ -202,16 +209,31 @@ fun EditGroupInfoScreen( // Blossom image while it is set, and clearing it falls the group // back to that image — so the two fields are not alternatives to // choose between, they stack. - OutlinedTextField( - value = avatarUrl, - onValueChange = { avatarUrl = it }, - label = { Text(stringRes(Res.string.marmot_avatar_url)) }, - placeholder = { Text(stringRes(Res.string.marmot_avatar_url_placeholder)) }, - supportingText = { Text(stringRes(Res.string.marmot_avatar_url_footer)) }, - modifier = Modifier.fillMaxWidth(), - singleLine = true, - enabled = !isSaving, - ) + // + // A legacy group has no carrier for `0x8007` at all, and cannot be + // upgraded to one, so the field is replaced by the reason rather + // than shown and then rejected on save. The uploaded image above + // still works there, which is what makes this a missing option + // rather than a missing feature. + if (isCurrentProfile) { + OutlinedTextField( + value = avatarUrl, + onValueChange = { avatarUrl = it }, + label = { Text(stringRes(Res.string.marmot_avatar_url)) }, + placeholder = { Text(stringRes(Res.string.marmot_avatar_url_placeholder)) }, + supportingText = { Text(stringRes(Res.string.marmot_avatar_url_footer)) }, + modifier = Modifier.fillMaxWidth(), + singleLine = true, + enabled = !isSaving, + ) + } else { + Text( + text = stringRes(Res.string.marmot_legacy_group_no_avatar_url), + style = MaterialTheme.typography.bodySmall, + color = MaterialTheme.colorScheme.onSurfaceVariant, + modifier = Modifier.fillMaxWidth(), + ) + } Spacer(modifier = Modifier.height(8.dp)) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt index 69ce70df00..2f866402be 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt @@ -88,6 +88,7 @@ import com.vitorpamplona.amethyst.commons.resources.marmot_group_info_title import com.vitorpamplona.amethyst.commons.resources.marmot_keypackage_required import com.vitorpamplona.amethyst.commons.resources.marmot_leave_group import com.vitorpamplona.amethyst.commons.resources.marmot_leave_group_confirm +import com.vitorpamplona.amethyst.commons.resources.marmot_legacy_group_no_disband import com.vitorpamplona.amethyst.commons.resources.marmot_member_suffix_admin import com.vitorpamplona.amethyst.commons.resources.marmot_member_suffix_you import com.vitorpamplona.amethyst.commons.resources.marmot_relay_last_event @@ -144,6 +145,7 @@ fun MarmotGroupInfoScreen( val groupRelays by chatroom.relays.collectAsStateWithLifecycle() val relayActivity by chatroom.relayActivity.collectAsStateWithLifecycle() val members by chatroom.members.collectAsStateWithLifecycle() + val isCurrentProfile by chatroom.isCurrentProfile.collectAsStateWithLifecycle() var showLeaveDialog by remember { mutableStateOf(false) } var showDisbandDialog by remember { mutableStateOf(false) } var isLeaving by remember { mutableStateOf(false) } @@ -191,7 +193,12 @@ fun MarmotGroupInfoScreen( // admin sees it and it sits behind its own confirmation. // Peers reject a non-admin's lifecycle commit anyway; not // offering it is what keeps a member from trying. - if (myPubkey in adminPubkeys) { + // + // A legacy group is hidden for a different reason: it has + // no carrier for the lifecycle component at all, so the + // commit is refused before it is built. The room says why + // further down rather than leaving the absence unexplained. + if (myPubkey in adminPubkeys && isCurrentProfile) { IconButton( onClick = { showDisbandDialog = true }, enabled = !isLeaving && !isDisbanding, @@ -294,6 +301,21 @@ fun MarmotGroupInfoScreen( } } + // An admin of a legacy group would otherwise just find the + // disband action missing. Say why, and say that it cannot be + // fixed by waiting for an update, so the only surprising part + // — that a NEW group would have it — is the part explained. + if (!isCurrentProfile && myPubkey in adminPubkeys) { + item { + Text( + text = stringRes(Res.string.marmot_legacy_group_no_disband), + style = MaterialTheme.typography.bodySmall, + color = MaterialTheme.colorScheme.onSurfaceVariant, + modifier = Modifier.padding(horizontal = 16.dp, vertical = 12.dp), + ) + } + } + item { Text( text = stringRes(Res.string.members), diff --git a/commons/src/commonMain/composeResources/values/strings.xml b/commons/src/commonMain/composeResources/values/strings.xml index 9884a9c103..2bce2daf07 100644 --- a/commons/src/commonMain/composeResources/values/strings.xml +++ b/commons/src/commonMain/composeResources/values/strings.xml @@ -2644,6 +2644,8 @@ Avatar link https://example.com/avatar.png An https link every member can load. Leave it empty to use the uploaded image instead. + This group was created before link avatars were supported, so it can only use an uploaded image. Existing groups cannot be upgraded — create a new group to use a link. + This group was created before disbanding was supported and cannot be disbanded. You can still leave it, or remove every other member. Existing groups cannot be upgraded. Marmot Group Group %1$s… %1$s… diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index c17e1e7c72..c9ae1c50e2 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -2175,6 +2175,9 @@ class MarmotManager( chatroom.relays.value = view.relays chatroom.image.value = view.image chatroom.avatarUrl.value = view.avatarUrl + // Drives which actions a front end may offer at all — a legacy + // group has no carrier for lifecycle, URL avatar or media policy. + chatroom.isCurrentProfile.value = view.isCurrentProfile } val previousCount = chatroom.members.value.size val members = memberPubkeys(nostrGroupId) diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt index 6486941c80..234b4454d3 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt @@ -64,6 +64,31 @@ class MarmotGroupChatroom( * once this is cleared. */ var avatarUrl = MutableStateFlow(null) + + /** + * False for a legacy MIP-01 group — one that predates the current profile + * and requires `0xf2f1` instead of the `0x8009` account identity proof. + * + * Front ends need this because a legacy group has nowhere to PUT several + * components: lifecycle (`0x800c`, so no disband), the URL avatar + * (`0x8007`), and the encrypted-media policy (`0x800b`) are all + * GroupContext state a legacy group never carried. Offering those actions + * on one produces a commit that is refused before it is built, so the + * honest thing is not to offer them. + * + * Nor can that be fixed by upgrading the group: the identity proof lives in + * each member's own LeafNode and covers that leaf's signature key, so it + * cannot be added to leaves that already exist. See `AccountIdentityProofV2` + * — "There is no fallback and no in-place migration". A legacy room stays a + * legacy room; a new group is the only route. + * + * Defaults to TRUE so a group that has just been created shows its full + * feature set immediately: creation does not run a metadata sync, and every + * group created now is a current-profile one. A restored legacy group is + * corrected by the startup sync before any screen reads this. + */ + var isCurrentProfile = MutableStateFlow(true) + var adminPubkeys = MutableStateFlow>(emptyList()) var relays = MutableStateFlow>(emptyList()) var memberCount = MutableStateFlow(0) From c0005fb48a2b009d469e10a2c0ec24c02226bd3c Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 17:16:11 +0000 Subject: [PATCH 66/79] fix(marmot): four defects and a wasted write found auditing the branch MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit SSRF guard walked past by IPv4 shorthand. isSafeToContact only recognised a literal when the host split into exactly four integer parts, so `127.1`, `2130706433`, `0x7f.0.0.1` and `0177.0.0.1` all fell through to "safe" — every one of them loopback to a resolver, which uses inet_aton and does not need four parts. It gates the real avatar fetch in MarmotGroupIconDisplay, so a group admin could make every member's device probe its own network: exactly what the function's own comment says it prevents. Now any notation is packed to its 32-bit value and judged once, and a numeric-looking host that cannot be evaluated is refused rather than allowed — "we could not tell" must not mean "go ahead". encrypted-media-v2 was write-only. The send path existed; nothing rendered it. The v2 imeta carries `locator ` pairs and no `url`, because the same ciphertext may live in several places and none is privileged — but IMetaTag.parse anchors on `url` and returns null without one, so hasMip04Media was false and a v2 attachment drew as its caption with the image missing and no error. Adds a v2 branch that parses the tag directly, plus the receiving constructor EncryptedMediaV2Cipher lacked: the existing one populates the nonce and plaintext hash from encrypt(), so it could only ever decrypt what the same instance had just encrypted — the sender's case and nobody else's. A confirmed publish RETRY forked the group against itself. commitAndPublish marks the message processed, records the local commit, pins retention and syncs system rows; retryPendingPublishObligations installed the state and did none of it. The relay's echo of our own republished commit was therefore admitted as an unknown kind:445 at an epoch already merged, opening a convergence pass against ourselves — a restart could put a healthy group into Recovering by succeeding. The framed commit is recovered by reopening the stored event with the pre-commit exporter secret that priorState derives, so no persisted record had to change shape to carry bytes it already implies. The convergence settler could drop its carrier. Between the loop finding nothing left and the finally clearing the flag, a new pass's startConvergenceSettler() lost the compareAndSet and returned, leaving an open pass with nobody polling it until unrelated traffic arrived. The carrier now re-checks after releasing the flag and reclaims it if work appeared in the gap. And a wasted write: persistGroup re-encoded and rewrote the whole retained-epoch window on every call, including every application message — one TlsWriter and one array per retained epoch plus a store write, for bytes identical to the ones already there. The window only moves when an epoch advances, so it is now gated on a revision counter. The group state itself still persists on every send; that is what keeps the sender's ratchet generation durable, and nothing here changes it. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../loggedIn/chats/feed/ChatMessageCompose.kt | 5 + .../feed/types/RenderMarmotEncryptedMedia.kt | 113 ++++++++++++++++++ .../amethyst/commons/marmot/MarmotManager.kt | 77 +++++++++++- .../appComponents/EncryptedMediaV2Cipher.kt | 18 +++ .../marmot/appComponents/MarmotWebUrl.kt | 85 +++++++++++-- .../marmot/mls/group/MlsGroupManager.kt | 29 ++++- .../appComponents/GroupAvatarUrlV1Test.kt | 28 +++++ 7 files changed, 340 insertions(+), 15 deletions(-) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/ChatMessageCompose.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/ChatMessageCompose.kt index f3f32961c3..bb0ba1da91 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/ChatMessageCompose.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/ChatMessageCompose.kt @@ -71,8 +71,10 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderChat import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderDraftEvent import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderEditedNote import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderEncryptedFile +import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderEncryptedMediaV2 import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderMarmotEncryptedMedia import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.RenderRegularTextNote +import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.hasEncryptedMediaV2 import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.hasMip04Media import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.types.isBuzzActivityRow import com.vitorpamplona.amethyst.ui.theme.ReactionRowZapraiser @@ -622,6 +624,9 @@ fun NoteRow( note.event is DraftWrapEvent -> RenderDraftEvent(note, canPreview, innerQuote, onWantsToReply, onWantsToEditDraft, bgColor, accountViewModel, nav) note.event is ChatMessageEncryptedFileHeaderEvent -> RenderEncryptedFile(note, bgColor, accountViewModel, nav) hasMip04Media(note.event) -> RenderMarmotEncryptedMedia(note, bgColor, accountViewModel, nav) + // `encrypted-media-v2` is a separate branch because its imeta has + // no `url` field for the NIP-92 parser above to anchor on. + hasEncryptedMediaV2(note.event) -> RenderEncryptedMediaV2(note, bgColor, accountViewModel, nav) else -> { // Concord, Buzz and Marmot all overlay edits on their messages (kinds 3302, // 40003 and 1009): when one exists, render the winning edit's content instead of diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/types/RenderMarmotEncryptedMedia.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/types/RenderMarmotEncryptedMedia.kt index c5a972e5b3..37d810fb5e 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/types/RenderMarmotEncryptedMedia.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/feed/types/RenderMarmotEncryptedMedia.kt @@ -42,10 +42,15 @@ import com.vitorpamplona.amethyst.ui.components.ZoomableContentView import com.vitorpamplona.amethyst.ui.navigation.navs.INav import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel import com.vitorpamplona.amethyst.ui.stringRes +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaPolicyV2 +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaReferenceV2 +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaV2 +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaV2Cipher import com.vitorpamplona.quartz.marmot.mip04EncryptedMedia.Mip04Cipher import com.vitorpamplona.quartz.marmot.mip04EncryptedMedia.Mip04MediaMeta import com.vitorpamplona.quartz.marmot.mip04EncryptedMedia.toMip04MediaMeta import com.vitorpamplona.quartz.nip01Core.core.Event +import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.nip31Alts.alt import com.vitorpamplona.quartz.nip92IMeta.imetas import com.vitorpamplona.quartz.nip94FileMetadata.tags.DimensionTag @@ -60,6 +65,114 @@ fun hasMip04Media(event: Event?): Boolean { return imetas.any { it.toMip04MediaMeta() != null } } +/** + * The `encrypted-media-v2` reference on an event, or null. + * + * Deliberately NOT routed through [imetas]: NIP-92 parsing anchors on a `url` + * field, and a v2 tag has no `url` — it carries `locator ` pairs + * instead, because the same ciphertext may live at several places and none of + * them is privileged. Reading v2 through the NIP-92 parser silently produced + * nothing, so a v2 attachment rendered as its caption with the image missing + * and no error. + */ +fun encryptedMediaV2Of(event: Event?): EncryptedMediaReferenceV2? { + if (event == null) return null + return event.tags.firstNotNullOfOrNull { tag -> + if (tag.size > 1 && tag[0] == "imeta") EncryptedMediaV2.parseImetaTagOrNull(tag) else null + } +} + +fun hasEncryptedMediaV2(event: Event?): Boolean = encryptedMediaV2Of(event) != null + +/** + * Renders an `encrypted-media-v2` attachment. + * + * Same shape as the MIP-04 path — register a cipher against the URL the blob + * will be fetched from, then hand a [BaseMediaContent] to [ZoomableContentView] + * — with two differences that come from the format: + * + * - The URL comes from the FIRST `blossom-v1` locator rather than a `url` + * field. Later locators are mirrors of the same ciphertext; trying them in + * turn would need the download layer to report failure back here, which it + * does not, so this renders the first and leaves fallback for when it can. + * - The nonce and plaintext hash come off the tag, so the cipher is built + * through its receiving constructor. + */ +@Composable +fun RenderEncryptedMediaV2( + note: Note, + bgColor: MutableState, + accountViewModel: AccountViewModel, + nav: INav, +) { + val event = note.event ?: return + val reference = remember(event) { encryptedMediaV2Of(event) } + val url = + remember(reference) { + reference + ?.locators + ?.firstOrNull { it.kind == EncryptedMediaPolicyV2.INITIAL_LOCATOR_KIND } + ?.value + } + + val nostrGroupId = remember(note) { findGroupIdForNote(note, accountViewModel) } + val mediaSecret = + remember(nostrGroupId) { + nostrGroupId?.let { accountViewModel.marmotMediaExporterSecret(it) } + } + + if (reference == null || url == null || mediaSecret == null) { + RenderDecryptionError(note, bgColor, accountViewModel, nav) + return + } + + val cipher = remember(reference, mediaSecret) { EncryptedMediaV2Cipher(mediaSecret, reference) } + Amethyst.instance.keyCache.add(url, cipher, reference.mediaType) + + val description = event.alt() + val dim = reference.dim?.let { DimensionTag.parse(it) } + val content by remember(reference) { + mutableStateOf( + if (reference.mediaType.startsWith("image/")) { + EncryptedMediaUrlImage( + url = url, + description = description, + hash = reference.plaintextSha256.toHexKey(), + dim = dim, + uri = note.toNostrUri(), + mimeType = reference.mediaType, + encryptionAlgo = EncryptedMediaV2.VERSION, + encryptionKey = mediaSecret, + encryptionNonce = reference.nonce, + thumbhash = reference.thumbhash, + ) + } else { + EncryptedMediaUrlVideo( + url = url, + description = description, + hash = reference.plaintextSha256.toHexKey(), + dim = dim, + uri = note.toNostrUri(), + authorName = note.author?.toBestDisplayName(), + mimeType = reference.mediaType, + encryptionAlgo = EncryptedMediaV2.VERSION, + encryptionKey = mediaSecret, + encryptionNonce = reference.nonce, + thumbhash = reference.thumbhash, + ) + }, + ) + } + + ZoomableContentView( + content, + persistentListOf(content), + roundedCorner = true, + contentScale = ContentScale.FillWidth, + accountViewModel, + ) +} + /** * Renders MIP-04 encrypted media in a Marmot group chat message. * diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index c9ae1c50e2..94298a806c 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -58,7 +58,9 @@ import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageUtils import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.mip02Welcome.WelcomeEvent import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEvent +import com.vitorpamplona.quartz.marmot.mip03GroupMessages.GroupEventEncryption import com.vitorpamplona.quartz.marmot.mls.group.MarmotMessageStore +import com.vitorpamplona.quartz.marmot.mls.group.MlsGroup import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupStateStore import com.vitorpamplona.quartz.marmot.mls.messages.CommitResult @@ -66,6 +68,7 @@ import com.vitorpamplona.quartz.marmot.mls.tree.Credential import com.vitorpamplona.quartz.marmot.protocolCore.GroupLifecycleState import com.vitorpamplona.quartz.marmot.protocolCore.LocalOutboundGate import com.vitorpamplona.quartz.marmot.protocolCore.MarmotPublishGate +import com.vitorpamplona.quartz.marmot.protocolCore.MarmotPublishObligation import com.vitorpamplona.quartz.marmot.protocolCore.MarmotPublishObligationStore import com.vitorpamplona.quartz.marmot.protocolCore.PublishOutcome import com.vitorpamplona.quartz.nip01Core.core.Event @@ -81,6 +84,7 @@ import com.vitorpamplona.quartz.nip18Reposts.quotes.QEventTag import com.vitorpamplona.quartz.nip18Reposts.quotes.quote import com.vitorpamplona.quartz.utils.Log import com.vitorpamplona.quartz.utils.TimeUtils +import com.vitorpamplona.quartz.utils.sha256.sha256 import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.delay import kotlinx.coroutines.flow.MutableStateFlow @@ -270,6 +274,28 @@ class MarmotManager( obligation.obligationId, if (confirmed) PublishOutcome.CONFIRMED else PublishOutcome.UNKNOWN, ) + // A confirmed retry makes the commit canonical exactly as + // [commitAndPublish] would, so it owes the same follow-up. Resolving + // the obligation and stopping there was enough to install the state + // and no more: the relay's echo of THIS event was never marked + // processed, so the inbound pipeline met an unknown kind:445 at an + // epoch we had already merged and opened a convergence pass against + // ourselves — a restart could put a healthy group into Recovering + // purely by succeeding. + if (confirmed) { + val framedCommit = framedCommitOf(obligation, event) + if (framedCommit != null) { + inboundProcessor.markMessageProcessed(sha256(framedCommit).toHexKey()) + inboundProcessor.recordLocalCommit( + groupId = obligation.groupId, + framedCommitBytes = framedCommit, + sourceEpoch = obligation.priorState.groupContext.epoch, + preState = obligation.priorState, + ) + } + recordRetentionForCurrentEpoch(obligation.groupId) + syncGroupSystemRows(obligation.groupId, actor = signer.pubKey) + } Log.d("MarmotManager") { "retryPendingPublishObligations(): ${obligation.groupId.take(8)}… " + "confirmed=$confirmed lifecycle=$state" @@ -277,6 +303,38 @@ class MarmotManager( } } + /** + * Recover the framed MLS commit from a stored obligation. + * + * The obligation keeps the signed kind:445 and the PRE-commit state, not + * the commit bytes — but that is enough, because the outer envelope was + * sealed under the pre-commit exporter secret and the pre-commit state + * derives it. Storing the commit bytes as well would say the same thing + * twice and change a persisted record's layout for it. + * + * Null when the envelope cannot be opened, which should not happen for our + * own event: the caller then skips the dedup and fork-window bookkeeping + * rather than guessing at an id. + */ + private fun framedCommitOf( + obligation: MarmotPublishObligation, + event: Event, + ): ByteArray? = + try { + val preCommitKey = + MlsGroup + .restore(obligation.priorState) + .exporterSecret("marmot", "group-event".encodeToByteArray(), 32) + GroupEventEncryption.decrypt(event.content, preCommitKey) + } catch (e: Exception) { + Log.w( + "MarmotManager", + "could not reopen retried commit for ${obligation.groupId.take(8)}: ${e.message}", + e, + ) + null + } + /** * Computes a per-group kind:445 subscription `since` from the newest * persisted decrypted message of each group. @@ -1092,9 +1150,24 @@ class MarmotManager( if (!settlerRunning.compareAndSet(expect = false, update = true)) return runner.launch { try { - driveConvergenceToSettlement() - } finally { + // Re-check under the flag before releasing it. Between the loop + // deciding it has nothing left and the flag being cleared, a new + // pass can open and its startConvergenceSettler() lose the + // compareAndSet — leaving an open pass with no carrier until + // unrelated traffic happened to start another. Looping here + // closes that window: whoever holds the flag keeps working until + // a check finds nothing left AFTER the flag has been given up. + do { + driveConvergenceToSettlement() + settlerRunning.value = false + if (inboundProcessor.openConvergencePasses().isEmpty()) break + // Something arrived in the gap. Take the flag again if it is + // still free; if another carrier got it first, it now owns + // the work and this one can stop. + } while (settlerRunning.compareAndSet(expect = false, update = true)) + } catch (e: Exception) { settlerRunning.value = false + throw e } } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Cipher.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Cipher.kt index 64894ae98a..02e72a7795 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Cipher.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Cipher.kt @@ -53,6 +53,24 @@ class EncryptedMediaV2Cipher( var ciphertextSha256: ByteArray = ByteArray(0) private set + /** + * The RECEIVING side, where the nonce and the plaintext hash arrive in the + * `imeta` tag instead of being produced by [encrypt]. + * + * Without this the object could only ever decrypt what the same instance + * had just encrypted, which is the sender's case and nobody else's — the + * primary constructor leaves both fields empty and [decrypt] would fail on + * the length check. + */ + constructor( + mediaSecret: ByteArray, + reference: EncryptedMediaReferenceV2, + ) : this(mediaSecret, reference.mediaType, reference.filename) { + nonce = reference.nonce + plaintextSha256 = reference.plaintextSha256 + ciphertextSha256 = reference.ciphertextSha256 + } + override fun name(): String = EncryptedMediaV2.VERSION override fun encrypt(bytesToEncrypt: ByteArray): ByteArray { diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotWebUrl.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotWebUrl.kt index 82d8f3d9f1..b0b4e71bc0 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotWebUrl.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotWebUrl.kt @@ -140,26 +140,89 @@ object MarmotWebUrl { } if (host == "localhost" || host.endsWith(".localhost")) return false if (host.startsWith("[")) return !isNonRoutableIpv6(host.trim('[', ']')) - val v4 = host.split('.').mapNotNull { it.toIntOrNull() } - if (v4.size == 4 && v4.all { it in 0..255 }) return !isNonRoutableIpv4(v4) + // A trailing dot is the same host ("example.com." == "example.com"), + // and would otherwise leave an empty last label below. + val bare = host.removeSuffix(".") + val packed = packIpv4(bare) + if (packed != null) return !isNonRoutableIpv4(packed) + // Not a name, and not an address shape we could evaluate. Refusing is + // the only safe answer: something like `0x7f.1` is an address to the + // resolver and a mystery to us, and "we could not tell" must not mean + // "go ahead". + if (looksNumeric(bare)) return false return true } + /** True when the last label is numeric, which no registrable name may be. */ + private fun looksNumeric(host: String): Boolean { + val last = host.substringAfterLast('.') + if (last.isEmpty()) return false + if (last.startsWith("0x") || last.startsWith("0X")) return true + return last.all { it in '0'..'9' } + } + + /** + * Pack an IPv4 literal in ANY of the notations a resolver accepts into its + * 32-bit value, or null when [host] is not one. + * + * `inet_aton` — which is what the platform resolver ultimately uses — does + * not require four parts. `127.1` is 127.0.0.1, so is the bare integer + * `2130706433`, and `0x7f.0.0.1` is too; a leading zero means octal. An + * earlier version of this check only recognised four decimal parts, so + * every one of those forms walked past the loopback guard and was fetched. + * + * With N parts the LAST part is not one byte but all the bytes the earlier + * parts did not cover: `a.b` is a.(24 bits), `a.b.c` is a.b.(16 bits). + */ + private fun packIpv4(host: String): Long? { + val parts = host.split('.') + if (parts.isEmpty() || parts.size > 4) return null + val values = parts.map { parseIpv4Part(it) ?: return null } + val lastWidth = 8 * (5 - parts.size) + val last = values.last() + if (lastWidth < 32 && last >= (1L shl lastWidth)) return null + var packed = last + // Every part but the last contributes exactly one byte, most + // significant first. + values.dropLast(1).forEachIndexed { i, v -> + if (v > 255L) return null + packed = packed or (v shl (8 * (3 - i))) + } + return packed + } + + /** One `inet_aton` part: 0x-hex, leading-zero octal, or decimal. */ + private fun parseIpv4Part(part: String): Long? { + if (part.isEmpty()) return null + val value = + when { + part.startsWith("0x") || part.startsWith("0X") -> + part.substring(2).takeIf { it.isNotEmpty() }?.toLongOrNull(16) + part.length > 1 && part[0] == '0' -> part.substring(1).toLongOrNull(8) + else -> part.toLongOrNull(10) + } + return value?.takeIf { it in 0..0xFFFFFFFFL } + } + private fun hostOf(normalized: String): String { val rest = normalized.substringAfter("://") val end = rest.indexOfFirst { it == '/' || it == '?' }.let { if (it < 0) rest.length else it } return splitHostPort(rest.substring(0, end)).first } - private fun isNonRoutableIpv4(o: List): Boolean = - o[0] == 0 || - o[0] == 127 || - o[0] == 10 || - (o[0] == 172 && o[1] in 16..31) || - (o[0] == 192 && o[1] == 168) || - (o[0] == 169 && o[1] == 254) || - (o[0] == 100 && o[1] in 64..127) || - o[0] >= 224 + /** Takes the packed 32-bit address so every notation is judged the same. */ + private fun isNonRoutableIpv4(packed: Long): Boolean { + val a = ((packed shr 24) and 0xFF).toInt() + val b = ((packed shr 16) and 0xFF).toInt() + return a == 0 || + a == 127 || + a == 10 || + (a == 172 && b in 16..31) || + (a == 192 && b == 168) || + (a == 169 && b == 254) || + (a == 100 && b in 64..127) || + a >= 224 + } private fun isNonRoutableIpv6(addr: String): Boolean { val a = addr.lowercase() diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt index 5167974d74..ef9376e760 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt @@ -104,6 +104,20 @@ class MlsGroupManager( private val groups = mutableMapOf() private val retainedEpochs = mutableMapOf>() + /** + * Bumped whenever a group's retained-epoch window changes, and compared + * against what was last written in [persistGroup]. + * + * The window only moves when an epoch advances, but [persistGroup] runs on + * every application message too — sending one advances the sender's ratchet + * and that has to be durable. Re-encoding and rewriting an unchanged + * retention window on each of those was measurable: it is one TlsWriter and + * one byte array per retained epoch, plus a store write, for bytes + * identical to the ones already there. + */ + private val retainedEpochRevision = mutableMapOf() + private val retainedEpochPersisted = mutableMapOf() + /** * Restore all groups from persistent storage on startup. * Call this once during Account initialization. @@ -130,6 +144,9 @@ class MlsGroupManager( retained .map { RetainedEpochSecrets.decodeTls(TlsReader(it)) } .toMutableList() + // What was just loaded is by definition what is on + // disk, so the first persist has nothing to rewrite. + retainedEpochPersisted[nostrGroupId] = retainedEpochRevision[nostrGroupId] ?: 0L Log.d(TAG) { "restoreAll(): restored ${retained.size} retained epochs for $nostrGroupId" } } } catch (e: Exception) { @@ -749,6 +766,8 @@ class MlsGroupManager( private suspend fun removeGroupStateUnlocked(nostrGroupId: HexKey) { groups.remove(nostrGroupId) retainedEpochs.remove(nostrGroupId) + retainedEpochRevision.remove(nostrGroupId) + retainedEpochPersisted.remove(nostrGroupId) store.delete(nostrGroupId) } @@ -776,6 +795,8 @@ class MlsGroupManager( } groups.clear() retainedEpochs.clear() + retainedEpochRevision.clear() + retainedEpochPersisted.clear() } // --- Key Export --- @@ -861,9 +882,11 @@ class MlsGroupManager( Log.d(TAG) { "persistGroup($nostrGroupId): serialized ${encoded.size} bytes, calling store.save" } store.save(nostrGroupId, encoded) - // Also persist retained epochs + // Also persist retained epochs — but only when the window actually + // moved. See [retainedEpochRevision]. val retained = retainedEpochs[nostrGroupId] - if (retained != null) { + val revision = retainedEpochRevision[nostrGroupId] ?: 0L + if (retained != null && retainedEpochPersisted[nostrGroupId] != revision) { val retainedBytes = retained.map { epoch -> val writer = TlsWriter() @@ -871,6 +894,7 @@ class MlsGroupManager( writer.toByteArray() } store.saveRetainedEpochs(nostrGroupId, retainedBytes) + retainedEpochPersisted[nostrGroupId] = revision Log.d(TAG) { "persistGroup($nostrGroupId): persisted ${retainedBytes.size} retained epochs" } } } catch (e: Exception) { @@ -896,6 +920,7 @@ class MlsGroupManager( while (retained.size > EPOCH_RETENTION_WINDOW) { retained.removeAt(0) } + retainedEpochRevision[nostrGroupId] = (retainedEpochRevision[nostrGroupId] ?: 0L) + 1 } private fun tryDecryptWithRetainedEpoch( diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt index 90708fde61..a488d12136 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt @@ -130,6 +130,34 @@ class GroupAvatarUrlV1Test { assertTrue(!MarmotWebUrl.isSafeToContact("https://10.0.0.1/a.png")) assertTrue(!MarmotWebUrl.isSafeToContact("https://192.168.1.1/a.png")) assertTrue(!MarmotWebUrl.isSafeToContact("https://[::1]/a.png")) + + // Loopback in every notation a resolver accepts, not just the dotted + // quad. `inet_aton` takes 1, 2, 3 or 4 parts, hex and octal included, + // so each of these reaches 127.0.0.1 — and each of them used to walk + // straight past this guard and be fetched. + assertTrue("two-part shorthand", !MarmotWebUrl.isSafeToContact("https://127.1/a.png")) + assertTrue("three-part shorthand", !MarmotWebUrl.isSafeToContact("https://127.0.1/a.png")) + assertTrue("bare 32-bit integer", !MarmotWebUrl.isSafeToContact("https://2130706433/a.png")) + assertTrue("hex first part", !MarmotWebUrl.isSafeToContact("https://0x7f.0.0.1/a.png")) + assertTrue("hex 32-bit", !MarmotWebUrl.isSafeToContact("https://0x7f000001/a.png")) + assertTrue("octal first part", !MarmotWebUrl.isSafeToContact("https://0177.0.0.1/a.png")) + assertTrue("trailing dot", !MarmotWebUrl.isSafeToContact("https://127.0.0.1./a.png")) + // Other private ranges in shorthand too. + assertTrue("10/8 shorthand", !MarmotWebUrl.isSafeToContact("https://10.1/a.png")) + assertTrue("169.254.0.1 as an integer", !MarmotWebUrl.isSafeToContact("https://2851995649/a.png")) + + // A numeric-looking host we cannot evaluate is refused rather than + // allowed: "we could not tell" must not mean "go ahead". + assertTrue("out of range", !MarmotWebUrl.isSafeToContact("https://999999999999/a.png")) + assertTrue("too many parts", !MarmotWebUrl.isSafeToContact("https://1.2.3.4.5/a.png")) + + // Ordinary names still resolve as safe, including ones with digits in + // them — only an all-numeric LAST label marks an address literal. + assertTrue(MarmotWebUrl.isSafeToContact("https://1.2.3.4.example.com/a.png")) + assertTrue(MarmotWebUrl.isSafeToContact("https://cdn2.example.com/a.png")) + assertTrue(MarmotWebUrl.isSafeToContact("https://example.com./a.png")) + // And a public address is still reachable. + assertTrue(MarmotWebUrl.isSafeToContact("https://8.8.8.8/a.png")) } @Test From a0f66eca6e0b4834321c76fb9b7b95b957a43b72 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 20:58:57 +0000 Subject: [PATCH 67/79] feat(marmot): let an admin switch a group to encrypted attachments MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit encrypted-media-v2 was reachable in theory and unreachable in practice on Android. `marmotUsesEncryptedMediaV2` keys off the group's `0x800b` policy, and nothing in the app ever set one: createMarmotGroup does not pass it, and setEncryptedMediaPolicy had no caller. Every group this app created therefore fell back to MIP-04 forever, and the v2 code could only ever run in groups created by amy or the reference client. Leaving it off at creation is deliberate and stays that way — CurrentProfileGroupFactory explains that carrying it at epoch 0 would make our GroupContext differ from the reference's for identical inputs and would force every joiner to advertise `0x800b` before it could be added. The spec's answer is that "a group that wants a media policy commits one". This adds the thing that commits one. Admin-only, current-profile-only, and offered only while the group lacks the component. Enable-only: changing the policy later is the same commit, but REMOVING it is a question the component does not answer, and inventing a removal that strands members mid-upload is not something to guess at. The explainer says plainly that every member sees the change and it cannot be undone. The endpoints come from the account's own Blossom server list rather than a constant, because a policy naming servers the uploader does not use would describe a group nobody can actually post media to; with none configured it refuses and says where to add one. MarmotGroupChatroom gains hasEncryptedMediaPolicy so the action disappears once it has been taken, populated in syncMetadataTo alongside isCurrentProfile. Verified against the reference implementation, not just our own tests: the headless MDK interop harness passes 26/26, including media-v2 in both directions. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/model/AccountMarmotActions.kt | 43 ++++++++++++ .../ui/screen/loggedIn/AccountViewModel.kt | 9 +++ .../marmotGroup/MarmotGroupInfoScreen.kt | 68 +++++++++++++++++++ amethyst/src/main/res/values/strings.xml | 3 + .../composeResources/values/strings.xml | 2 + .../amethyst/commons/marmot/MarmotManager.kt | 1 + .../model/marmotGroups/MarmotGroupChatroom.kt | 9 +++ 7 files changed, 135 insertions(+) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt index 68f49ee6fe..4d0e130029 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt @@ -20,6 +20,8 @@ */ package com.vitorpamplona.amethyst.model +import com.vitorpamplona.quartz.marmot.appComponents.BlobStoreEndpointV2 +import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaPolicyV2 import com.vitorpamplona.quartz.marmot.appComponents.GroupAvatarUrlV1 import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 import com.vitorpamplona.quartz.marmot.appComponents.MarmotWebUrl @@ -588,6 +590,47 @@ class AccountMarmotActions( manager.syncMetadataTo(nostrGroupId, chatroom) } + /** + * Commit the `encrypted-media-v2` policy (`0x800b`) for a group. + * + * Creation deliberately leaves this off — `CurrentProfileGroupFactory` + * explains why: carrying it at epoch 0 would make our GroupContext differ + * from the reference's for the same inputs, and would force every joiner to + * advertise `0x800b` before it could be added. The spec's answer is that "a + * group that wants a media policy commits one", and until now nothing on + * Android could, so `marmotUsesEncryptedMediaV2` was false for every group + * this app created and attachments always fell back to MIP-04. + * + * Enable-only on purpose. Changing the policy later is the same commit; + * REMOVING it is a different question the component does not answer, and + * inventing a removal that strands members mid-upload is not something to + * guess at. + * + * The endpoints come from the account's own Blossom server list, because a + * policy naming servers the uploader does not use would describe a group + * nobody can actually post media to. + */ + suspend fun enableMarmotEncryptedMediaV2(nostrGroupId: HexKey) { + val manager = account.marmotManager ?: return + if (!account.isWriteable()) return + + val servers = account.blossomServers.flow.value + require(servers.isNotEmpty()) { + "Cannot enable encrypted media without at least one Blossom server configured" + } + val policy = + EncryptedMediaPolicyV2( + allowedLocatorKinds = listOf(EncryptedMediaPolicyV2.INITIAL_LOCATOR_KIND), + defaultBlobEndpoints = + servers.map { + BlobStoreEndpointV2(EncryptedMediaPolicyV2.INITIAL_LOCATOR_KIND, it) + }, + ) + manager.setEncryptedMediaPolicy(nostrGroupId, policy, marmotGroupRelays(nostrGroupId).toList()) + val chatroom = account.marmotGroupList.getOrCreateGroup(nostrGroupId) + manager.syncMetadataTo(nostrGroupId, chatroom) + } + /** * Set or clear the group's plain-`https` avatar link * (`marmot.group.avatar-url.v1`, `0x8007`). diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt index 238a61bf4e..1ae1996e6b 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt @@ -2465,6 +2465,15 @@ class AccountViewModel( */ fun marmotUsesEncryptedMediaV2(nostrGroupId: String): Boolean = account.marmotManager?.encryptedMediaPolicy(nostrGroupId) != null + /** True when this account has somewhere to upload a group's encrypted media. */ + fun hasBlossomServers(): Boolean = + account.blossomServers.flow.value + .isNotEmpty() + + suspend fun enableMarmotEncryptedMediaV2(nostrGroupId: String) { + account.marmot.enableMarmotEncryptedMediaV2(nostrGroupId) + } + /** Post the kind:9 carrying an `encrypted-media-v2` attachment. */ suspend fun sendMarmotGroupEncryptedMediaV2( nostrGroupId: String, diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt index 2f866402be..f5e234e722 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt @@ -41,6 +41,7 @@ import androidx.compose.foundation.lazy.LazyColumn import androidx.compose.foundation.lazy.items import androidx.compose.foundation.shape.CircleShape import androidx.compose.material3.AlertDialog +import androidx.compose.material3.Button import androidx.compose.material3.ExperimentalMaterial3Api import androidx.compose.material3.HorizontalDivider import androidx.compose.material3.IconButton @@ -79,6 +80,8 @@ import com.vitorpamplona.amethyst.commons.resources.marmot_disband_group import com.vitorpamplona.amethyst.commons.resources.marmot_disband_group_action import com.vitorpamplona.amethyst.commons.resources.marmot_disband_group_confirm import com.vitorpamplona.amethyst.commons.resources.marmot_edit_group_info +import com.vitorpamplona.amethyst.commons.resources.marmot_enable_encrypted_media +import com.vitorpamplona.amethyst.commons.resources.marmot_enable_encrypted_media_explainer import com.vitorpamplona.amethyst.commons.resources.marmot_grant import com.vitorpamplona.amethyst.commons.resources.marmot_grant_admin_confirm import com.vitorpamplona.amethyst.commons.resources.marmot_grant_admin_privileges @@ -146,10 +149,12 @@ fun MarmotGroupInfoScreen( val relayActivity by chatroom.relayActivity.collectAsStateWithLifecycle() val members by chatroom.members.collectAsStateWithLifecycle() val isCurrentProfile by chatroom.isCurrentProfile.collectAsStateWithLifecycle() + val hasEncryptedMedia by chatroom.hasEncryptedMediaPolicy.collectAsStateWithLifecycle() var showLeaveDialog by remember { mutableStateOf(false) } var showDisbandDialog by remember { mutableStateOf(false) } var isLeaving by remember { mutableStateOf(false) } var isDisbanding by remember { mutableStateOf(false) } + var isEnablingMedia by remember { mutableStateOf(false) } var memberToRemove by remember { mutableStateOf(null) } var memberToPromote by remember { mutableStateOf(null) } var memberToDemote by remember { mutableStateOf(null) } @@ -301,6 +306,69 @@ fun MarmotGroupInfoScreen( } } + // Groups are created WITHOUT the encrypted-media component so + // that epoch 0 matches the reference implementation's byte for + // byte; the spec's answer is that a group which wants one + // commits it. This is where an admin does that. Offered only + // while the group lacks it, because the component has no + // defined removal and this is a one-way change. + if (isCurrentProfile && !hasEncryptedMedia && myPubkey in adminPubkeys) { + item { + Column(modifier = Modifier.padding(horizontal = 16.dp, vertical = 12.dp)) { + Button( + onClick = { + if (!accountViewModel.hasBlossomServers()) { + Toast + .makeText( + context, + stringRes(context, R.string.marmot_enable_encrypted_media_needs_server), + Toast.LENGTH_LONG, + ).show() + return@Button + } + isEnablingMedia = true + scope.launch(Dispatchers.IO) { + try { + accountViewModel.enableMarmotEncryptedMediaV2(nostrGroupId) + launch(Dispatchers.Main) { + Toast + .makeText( + context, + stringRes(context, R.string.marmot_encrypted_media_enabled_toast), + Toast.LENGTH_SHORT, + ).show() + } + } catch (e: Exception) { + launch(Dispatchers.Main) { + Toast + .makeText( + context, + stringRes( + context, + R.string.marmot_failed_to_enable_encrypted_media, + e.message, + ), + Toast.LENGTH_LONG, + ).show() + } + } finally { + isEnablingMedia = false + } + } + }, + enabled = !isEnablingMedia && !isLeaving && !isDisbanding, + ) { + Text(stringRes(Res.string.marmot_enable_encrypted_media)) + } + Text( + text = stringRes(Res.string.marmot_enable_encrypted_media_explainer), + style = MaterialTheme.typography.bodySmall, + color = MaterialTheme.colorScheme.onSurfaceVariant, + ) + } + } + } + // An admin of a legacy group would otherwise just find the // disband action missing. Say why, and say that it cannot be // fixed by waiting for an update, so the only surprising part diff --git a/amethyst/src/main/res/values/strings.xml b/amethyst/src/main/res/values/strings.xml index dab6461e71..3d6319a8f5 100644 --- a/amethyst/src/main/res/values/strings.xml +++ b/amethyst/src/main/res/values/strings.xml @@ -2696,6 +2696,9 @@ Failed to update: %1$s Failed to create group: %1$s Failed to leave group: %1$s + Add a Blossom media server in Settings first — the group needs somewhere to upload attachments to. + This group now uses encrypted attachments + Could not switch this group to encrypted attachments: %1$s Group disbanded Could not disband the group: %1$s Adding %1$s… diff --git a/commons/src/commonMain/composeResources/values/strings.xml b/commons/src/commonMain/composeResources/values/strings.xml index 2bce2daf07..c9d1757284 100644 --- a/commons/src/commonMain/composeResources/values/strings.xml +++ b/commons/src/commonMain/composeResources/values/strings.xml @@ -2645,6 +2645,8 @@ https://example.com/avatar.png An https link every member can load. Leave it empty to use the uploaded image instead. This group was created before link avatars were supported, so it can only use an uploaded image. Existing groups cannot be upgraded — create a new group to use a link. + Use encrypted attachments + Attachments in this group use the older format. Switching adds the encrypted-media component to the group, and every member sees the change. It cannot be switched back. This group was created before disbanding was supported and cannot be disbanded. You can still leave it, or remove every other member. Existing groups cannot be upgraded. Marmot Group Group %1$s… diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 94298a806c..fd3b166867 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -2251,6 +2251,7 @@ class MarmotManager( // Drives which actions a front end may offer at all — a legacy // group has no carrier for lifecycle, URL avatar or media policy. chatroom.isCurrentProfile.value = view.isCurrentProfile + chatroom.hasEncryptedMediaPolicy.value = encryptedMediaPolicy(nostrGroupId) != null } val previousCount = chatroom.members.value.size val members = memberPubkeys(nostrGroupId) diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt index 234b4454d3..573a1c3b29 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt @@ -89,6 +89,15 @@ class MarmotGroupChatroom( */ var isCurrentProfile = MutableStateFlow(true) + /** + * True once the group carries the `encrypted-media-v2` policy (`0x800b`). + * + * Attachments fall back to MIP-04 without it, so a front end needs this to + * tell an admin the group can be upgraded — and to stop offering the + * upgrade once it has been. + */ + var hasEncryptedMediaPolicy = MutableStateFlow(false) + var adminPubkeys = MutableStateFlow>(emptyList()) var relays = MutableStateFlow>(emptyList()) var memberCount = MutableStateFlow(0) From cd1e2776ee3d11f2b260c97eef2a431ea4478d1f Mon Sep 17 00:00:00 2001 From: Vitor Pamplona Date: Thu, 10 Sep 2026 17:17:27 -0400 Subject: [PATCH 68/79] fix(marmot): sign the account identity proof with the bare signer No Amethyst account could mint a KeyPackage. Every attempt died in `AccountIdentityProofV2.create` with "signer altered the account identity proof event tags", so nothing was published to relays, no group could be created, and the failure was invisible -- the exception surfaced no toast and, with `VERBOSE_LOGS` off, no log line either. The account signer is a `NostrSignerWithClientTag`, which appends the NIP-89 client tag to everything it signs; the setting defaults to on, so this was the ordinary path on device rather than an exotic one. The check it tripped exists so a substituting external signer cannot authorize a key the caller never asked to authorize, and it cannot tell a decorator's addition apart from a hostile one -- correctly, since both rewrite the bytes about to be hashed into an id. So the proof is signed by the signer with that decorator peeled off, which is what `withoutClientTag()` is for and what every other "these exact bytes were requested" caller already does. A proof is a fixed statement about a key rather than a post: it carries no client attribution, and a verifier would have to strip the tag again anyway. Verified on device: the app now publishes a framed kind:30443 (466 bytes, `0001 0005 0001 0001`), White Noise Android finds it, and a group created there reaches the app. Co-Authored-By: Claude Opus 5 (1M context) --- .../AccountIdentityProofV2.kt | 11 ++++++- .../AccountIdentityProofV2Test.kt | 29 +++++++++++++++++++ 2 files changed, 39 insertions(+), 1 deletion(-) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/accountIdentityProof/AccountIdentityProofV2.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/accountIdentityProof/AccountIdentityProofV2.kt index 67094a1189..a401e6120b 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/accountIdentityProof/AccountIdentityProofV2.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/accountIdentityProof/AccountIdentityProofV2.kt @@ -30,6 +30,7 @@ import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.nip01Core.crypto.EventHasher import com.vitorpamplona.quartz.nip01Core.signers.EventTemplate import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner +import com.vitorpamplona.quartz.nip89AppHandlers.clientTag.withoutClientTag import com.vitorpamplona.quartz.utils.TimeUtils /** @@ -151,7 +152,15 @@ object AccountIdentityProofV2 { "account identity proof created_at must be in 1..${MarmotAuthorizationProof.MAX_CREATED_AT}" } val template = signingTemplate(ciphersuite, mlsSignatureKey, createdAt) - val signed: Event = signer.sign(template) + // Signed by the bare signer, never by a decorating wrapper. Amethyst's account signer + // appends the NIP-89 `client` tag to everything it signs (the setting defaults to on), and + // the check below -- which exists so a substituting external signer cannot authorize a key + // the caller never asked to authorize -- cannot tell that addition apart from a hostile + // one. Every KeyPackage mint on Android therefore threw "signer altered the account + // identity proof event tags", so no KeyPackage was ever published and no group could be + // created. A proof is a fixed set of bytes about a key, not a post: it carries no client + // attribution, and the tag would have to be stripped again by every verifier anyway. + val signed: Event = signer.withoutClientTag().sign(template) require(signed.pubKey == signer.pubKey) { "signer returned an account identity proof event authored by a different account" diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AccountIdentityProofV2Test.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AccountIdentityProofV2Test.kt index f5117d3ddf..ceeebd3f4f 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AccountIdentityProofV2Test.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/AccountIdentityProofV2Test.kt @@ -27,6 +27,7 @@ import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import com.vitorpamplona.quartz.nip89AppHandlers.clientTag.NostrSignerWithClientTag import kotlinx.coroutines.runBlocking import kotlin.test.Test import kotlin.test.assertContentEquals @@ -281,6 +282,34 @@ class AccountIdentityProofV2Test { ) } + @Test + fun aClientTaggedSignerStillMintsAValidProof() = + runBlocking { + // Amethyst's account signer appends the NIP-89 client tag to everything it signs, and + // the setting is on by default, so this is the ordinary path on Android rather than an + // exotic one. Signing the proof through the decorator produced tags that did not match + // the template, and `create` -- which cannot tell a decorator's addition from a hostile + // substitution -- threw. Every KeyPackage mint on device died there. + val keyPair = KeyPair() + val leafKey = ByteArray(32) { (it + 7).toByte() } + val tagged = NostrSignerWithClientTag(NostrSignerInternal(keyPair), "Amethyst") + + val proof = AccountIdentityProofV2.create(tagged, ciphersuite, leafKey, createdAt) + + assertEquals( + AccountIdentityProofV2.Result.VALID, + AccountIdentityProofV2.validate(proof.encode(), keyPair.pubKey, leafKey, ciphersuite), + ) + // Everything the proof commits to, except the signature: the decorator must not reach + // the signed bytes at all. Not compared byte-for-byte against a bare-signer proof -- + // BIP-340 signs with auxiliary randomness, so two signatures over the same message + // differ by design and such an assertion would fail for a reason that is not this bug. + val bare = AccountIdentityProofV2.create(NostrSignerInternal(keyPair), ciphersuite, leafKey, createdAt) + assertContentEquals(bare.encode().copyOfRange(0, 40), proof.encode().copyOfRange(0, 40)) + assertEquals(bare.signerPubKeyHex, proof.signerPubKeyHex) + assertEquals(bare.createdAt, proof.createdAt) + } + @Test fun aProofDoesNotCarryToAnotherAccount() = runBlocking { From 80aa4b31e28c1b035f57b7c39f74b1caa74a56ab Mon Sep 17 00:00:00 2001 From: Vitor Pamplona Date: Thu, 10 Sep 2026 17:17:29 -0400 Subject: [PATCH 69/79] fix(marmot): await the KeyPackage relay list before creating the group "Use outbox relays" launched `saveKeyPackageRelayListFromOutbox()` into its own coroutine and called `proceedWithCreate()` beside it, so the write the creation depends on raced the creation itself. The loser was silent: `isCreating` had already latched true, and the top bar gates on `isActive = { !isCreating }`, so Create went inert for the rest of the screen's life -- no group, no error, and only Cancel could leave. `proceedWithCreate` now takes an optional `prepare` step that runs inside the same coroutine and is awaited, which also puts a failure to save on the same Toast path as a failure to create instead of dropping it in a coroutine nobody reads. Co-Authored-By: Claude Opus 5 (1M context) --- .../chats/marmotGroup/CreateGroupScreen.kt | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/CreateGroupScreen.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/CreateGroupScreen.kt index 82023f025f..a0604b0bf2 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/CreateGroupScreen.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/CreateGroupScreen.kt @@ -86,10 +86,21 @@ fun CreateGroupScreen( val scope = rememberCoroutineScope() val context = LocalContext.current - fun proceedWithCreate() { + /** + * Create the group, optionally after [prepare]. + * + * [prepare] runs *inside* the same coroutine and is awaited, which is the whole point: the + * KeyPackage relay list it writes is what the creation below depends on. Launching the two + * side by side raced them, and the loser was silent -- `isCreating` had already latched true, + * so the top bar's `isActive` gate left Create inert with no error and no group, and only + * Cancel could leave the screen. Awaiting also puts a failure to save on the same Toast path + * as a failure to create, instead of dropping it in a coroutine nobody reads. + */ + fun proceedWithCreate(prepare: (suspend () -> Unit)? = null) { isCreating = true scope.launch(Dispatchers.IO) { try { + prepare?.invoke() val nostrGroupId = RandomInstance.bytes(32).toHexKey() accountViewModel.createMarmotGroup( nostrGroupId, @@ -219,10 +230,7 @@ fun CreateGroupScreen( MissingKeyPackageRelayListDialog( onConfirm = { showKeyPackageRelayDialog = false - scope.launch(Dispatchers.IO) { - accountViewModel.saveKeyPackageRelayListFromOutbox() - } - proceedWithCreate() + proceedWithCreate { accountViewModel.saveKeyPackageRelayListFromOutbox() } }, onDismiss = { showKeyPackageRelayDialog = false From 425e1a6470f0fb048886f45c73fc3b24c6c1fdfe Mon Sep 17 00:00:00 2001 From: Vitor Pamplona Date: Thu, 10 Sep 2026 17:17:30 -0400 Subject: [PATCH 70/79] test(marmot): let the headless harness run off Linux Three assumptions the harness makes are Linux-only, and each stops it before a single test runs: - it binds the relay to the URL host, and macOS has no 127.0.0.2 alias ("Can't assign requested address"). `RELAY_BIND` now separates the bind address from the advertised host, so the relay can listen on 127.0.0.1 while the URL names something else. - `wnd` refuses a socket path it considers too long, and rejects any path containing a symlink or a directory it does not consider trusted-owned. `B_SOCKET`/`C_SOCKET` are overridable now, so the sockets can live in a short real directory while state stays in the repo. Note for whoever runs this next: the `127.0.0.2` trick the comments describe no longer buys anything. `RelayUrlNormalizer.isLocalHost` parses the address now instead of matching literals, so the whole 127.0.0.0/8 is stripped from the DM and KeyPackage relay lists -- `amy relay add ws://127.0.0.2:8080` lands in nip65 only, and KeyPackage publishing falls back to the public defaults. A host that resolves to loopback without looking like it (lvh.me) survives our strip, but `wnd` rejects plain `ws://` for a non-local host, so the two stacks currently admit no shared cleartext relay url. That needs solving before this suite can pass end to end. Co-Authored-By: Claude Opus 5 (1M context) --- cli/tests/marmot/marmot-interop-headless.sh | 4 ++-- cli/tests/marmot/setup.sh | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/cli/tests/marmot/marmot-interop-headless.sh b/cli/tests/marmot/marmot-interop-headless.sh index a8e971cce8..0beb42cbb2 100755 --- a/cli/tests/marmot/marmot-interop-headless.sh +++ b/cli/tests/marmot/marmot-interop-headless.sh @@ -25,8 +25,8 @@ LOG_DIR="$STATE_DIR/logs" A_DIR="$STATE_DIR/.amy/A" B_DIR="$STATE_DIR/B" C_DIR="$STATE_DIR/C" -B_SOCKET="$B_DIR/wnd.sock" -C_SOCKET="$C_DIR/wnd.sock" +B_SOCKET="${B_SOCKET:-$B_DIR/wnd.sock}" +C_SOCKET="${C_SOCKET:-$C_DIR/wnd.sock}" RUN_TS="$(date +%Y%m%d-%H%M%S)" LOG_FILE="$LOG_DIR/run-$RUN_TS.log" diff --git a/cli/tests/marmot/setup.sh b/cli/tests/marmot/setup.sh index cbcc9e09ea..ac116d541d 100644 --- a/cli/tests/marmot/setup.sh +++ b/cli/tests/marmot/setup.sh @@ -271,7 +271,7 @@ description = "Loopback relay for marmot-interop-headless.sh — do not use for data_directory = "$RELAY_DATA" [network] -address = "${RELAY_HOST:-127.0.0.1}" +address = "${RELAY_BIND:-${RELAY_HOST:-127.0.0.1}}" port = $RELAY_PORT [options] From 76bbaf569d092614456359722db5b71d61f03867 Mon Sep 17 00:00:00 2001 From: Vitor Pamplona Date: Thu, 10 Sep 2026 18:01:19 -0400 Subject: [PATCH 71/79] fix(marmot): write attachments in the adopted encrypted-media-v2 shape Every image Amethyst sent into a Marmot group was invisible to every other implementation. The upload was encrypted with the MIP-era scheme and described with a MIP-era `imeta` -- `url`, `x`, `n`, `v mip04-v2` -- and MDK 0.9.21, which White Noise embeds, knows only `encrypted-media-v1|v2`: `locator`, `ciphertext_sha256`, `plaintext_sha256`, `nonce`. Its typed parser rejects anything else and the caller drops the tag without a word, so the message arrived carrying no attachment at all. The encoder for the adopted shape was already here and already correct. What sent the old one was the gate: v2 was used only when the group carried the `encrypted-media-v2` component, and groups are created WITHOUT it on purpose, so epoch 0 matches the reference implementation byte for byte. The default path was therefore always the dead dialect. Receivers do not require that component -- MDK pins the opposite, that an out-of-policy locator is "kept, not dropped on ingest", because media is authenticated by its hashes and AEAD rather than by where it sits. Only a SENDER's own outbound validation is constrained by policy. So the cipher is now chosen unconditionally, and a media type too malformed to canonicalize becomes `application/octet-stream` rather than falling back: an attachment labelled imprecisely still renders, one in a dialect nobody reads does not. MIP-04 stays on the READ side for messages older builds already sent. The test pins the tag we write against MDK's own fixture (`crates/marmot-app/src/media/tests.rs`, `valid_v2_imeta_tag`) instead of round-tripping through our own parser, which is what let this drift through a suite that already claimed media interop: both ends drifted together and agreed with each other. Verified on device, Amethyst -> White Noise Android: the chat list shows `Photo` (their `classify_chat_list_attachments` only says that once the imeta parses) and the conversation renders the image. Co-Authored-By: Claude Opus 5 (1M context) --- .../chats/marmotGroup/MarmotGroupChatView.kt | 1 - .../marmotGroup/send/MarmotFileSender.kt | 10 ++--- .../marmotGroup/send/MarmotFileUploader.kt | 45 ++++++++++++++----- .../appComponents/EncryptedMediaV2Test.kt | 31 +++++++++++++ 4 files changed, 69 insertions(+), 18 deletions(-) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt index 3b7b7b3966..831d3b1e07 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt @@ -333,7 +333,6 @@ private fun MarmotGroupFileUploadDialog( } }, context = context, - useEncryptedMediaV2 = accountViewModel.marmotUsesEncryptedMediaV2(nostrGroupId), onceUploaded = { uploads -> MarmotFileSender(nostrGroupId, accountViewModel).send(uploads) onUpload() diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileSender.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileSender.kt index 19bc05ce08..1ad5e8eb9e 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileSender.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileSender.kt @@ -28,11 +28,11 @@ import com.vitorpamplona.quartz.nip01Core.core.HexKey * Sends uploaded encrypted media as Marmot group messages. Each upload result * becomes a separate kind:9 with an `imeta` tag. * - * Which reference format the tag carries is the GROUP's decision, made when the - * upload was encrypted: a group carrying the `encrypted-media-v2` policy - * (`0x800b`) gets a v2 reference, and one that does not gets the MIP-04 shape. - * The frozen v1 policy at `0x8008` is a different component and is never - * reinterpreted as v2, so there is no third case here. + * Every upload now carries an `encrypted-media-v2` reference, whatever policy + * the group holds -- see [MarmotFileUploader]. The MIP-04 branch below is kept + * because the result type still allows a null reference, but nothing this app + * writes takes it; the MIP-era shape survives only on the READ side, for + * messages older builds already sent. */ class MarmotFileSender( val nostrGroupId: HexKey, diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileUploader.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileUploader.kt index 6f3a514e11..ad768a3be6 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileUploader.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/send/MarmotFileUploader.kt @@ -34,7 +34,6 @@ import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaReferenceV2 import com.vitorpamplona.quartz.marmot.appComponents.EncryptedMediaV2Cipher import com.vitorpamplona.quartz.marmot.appComponents.MarmotMediaType import com.vitorpamplona.quartz.marmot.appComponents.MediaLocatorV2 -import com.vitorpamplona.quartz.marmot.mip04EncryptedMedia.Mip04NostrCipher /** * MIP-04 upload result containing all info needed to build the imeta tag. @@ -61,11 +60,14 @@ class Mip04UploadResult( val encryptedMediaV2: EncryptedMediaReferenceV2? = null, ) +/** What an unparseable media type becomes, so a file is never described in a dialect nobody reads. */ +private const val GENERIC_MEDIA_TYPE = "application/octet-stream" + /** - * Handles MIP-04 encrypted media upload for Marmot groups. + * Handles encrypted media upload for Marmot groups. * * Uses the existing [UploadOrchestrator.uploadEncrypted] pipeline but - * provides a per-file [Mip04NostrCipher] for MIP-04 key derivation. + * provides a per-file [EncryptedMediaV2Cipher] for key derivation. */ class MarmotFileUploader( val account: Account, @@ -79,7 +81,6 @@ class MarmotFileUploader( * Produce `encrypted-media-v2` references instead of MIP-04 ones. * Decided by the group's policy component, not by the uploader. */ - useEncryptedMediaV2: Boolean = false, onceUploaded: suspend (List) -> Unit, ) { val multiOrchestrator = viewState.multiOrchestrator ?: return @@ -97,12 +98,28 @@ class MarmotFileUploader( // v2 puts `m` inside both the key derivation and the AEAD // associated data, so it has to be the canonical form and not - // whatever the content resolver reported. A type that will not - // canonicalize falls back to MIP-04 for this file rather than - // producing a reference no receiver can key. - val canonicalMediaType = if (useEncryptedMediaV2) MarmotMediaType.canonicalize(mimeType) else null - val v2Cipher = canonicalMediaType?.let { EncryptedMediaV2Cipher(exporterSecret, it, filename) } - val cipher = v2Cipher ?: Mip04NostrCipher(exporterSecret, mimeType, filename) + // whatever the content resolver reported. + // + // Always v2, whatever the group carries. This used to be gated on + // the group holding the `encrypted-media-v2` policy, and groups are + // created without it on purpose (epoch 0 has to match the reference + // implementation byte for byte), so in practice every attachment + // went out in the MIP-era dialect -- `url`/`x`/`n`/`v mip04-v2` -- + // which no shipping Marmot implementation reads: MDK 0.9.21 knows + // only `encrypted-media-v1|v2` and drops anything else at the + // typed parser, silently. Receivers do not gate on the policy + // either (MDK's own test pins that an out-of-policy locator is + // "kept, not dropped on ingest"), so writing v2 into a group that + // never committed the component is read correctly; it is only the + // SENDER's own policy validation that a component would constrain. + // + // A media type too malformed to canonicalize becomes the generic + // octet-stream rather than falling back to the old dialect: an + // attachment nobody can render is worse than one labelled + // imprecisely. + val canonicalMediaType = MarmotMediaType.canonicalize(mimeType) ?: GENERIC_MEDIA_TYPE + val cipher = EncryptedMediaV2Cipher(exporterSecret, canonicalMediaType, filename) + val v2Cipher = cipher item.orchestrator.uploadEncrypted( uri = media.uri, @@ -145,8 +162,12 @@ class MarmotFileUploader( url = serverResult.url, mimeType = mimeType, filename = filename, - originalFileHash = (cipher as? Mip04NostrCipher)?.originalFileHash ?: ByteArray(0), - nonce = (cipher as? Mip04NostrCipher)?.nonce ?: ByteArray(0), + // Empty now that nothing is encrypted with the MIP-era + // scheme. The fields stay on the result type because the + // reader still accepts that shape for messages older + // builds already sent. + originalFileHash = ByteArray(0), + nonce = ByteArray(0), dimensions = serverResult.fileHeader.dim?.toString(), blurhash = serverResult.fileHeader.blurHash?.blurhash, caption = viewState.caption.ifEmpty { null }, diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Test.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Test.kt index 17acac7379..239247a661 100644 --- a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Test.kt +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/EncryptedMediaV2Test.kt @@ -243,6 +243,37 @@ class EncryptedMediaV2Test { filename = "marmot.jpg", ) + /** + * The tag we WRITE, field for field, against MDK's own accepted fixture + * (`crates/marmot-app/src/media/tests.rs`, `valid_v2_imeta_tag`). + * + * Round-tripping through our own parser cannot catch a dialect drift, + * because both ends drift together -- which is exactly what happened: the + * app shipped MIP-era `url`/`x`/`n`/`v mip04-v2` tags that our reader + * accepted and every other implementation dropped at its typed parser, + * silently, so an attachment simply did not appear. Pinning the names and + * their order against the reference implementation's fixture is what makes + * that visible here instead of on someone's screen. + */ + @Test + fun theWrittenTagMatchesTheReferenceImplementationsFixture() { + val tag = reference().toImetaTag() + + assertEquals("imeta", tag[0]) + assertEquals("v encrypted-media-v2", tag[1]) + assertEquals("locator blossom-v1 https://blossom.primal.net/" + "ab".repeat(32), tag[2]) + assertEquals("ciphertext_sha256 " + "01".repeat(32), tag[3]) + assertEquals("plaintext_sha256 " + "02".repeat(32), tag[4]) + assertEquals("nonce " + "03".repeat(12), tag[5]) + assertEquals("m image/jpeg", tag[6]) + assertEquals("filename marmot.jpg", tag[7]) + + // None of the MIP-era field names may appear: a receiver keys on the + // first token of each field, so `url`/`x`/`n` are simply unknown to it. + val names = tag.drop(1).map { it.substringBefore(' ') } + assertTrue(names.none { it == "url" || it == "x" || it == "n" }, "MIP-era field names must not be written: $names") + } + @Test fun anImetaTagRoundTrips() { val parsed = EncryptedMediaV2.parseImetaTag(reference().toImetaTag()) From c91b2afd095c3792df2489e26e4dbf62b5a65cac Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 23:34:28 +0000 Subject: [PATCH 72/79] feat(marmot): interop coverage for deletions, retention and disband inbound MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Adds the three harness directions the reference CLI can actually drive, and the implementation each one needed. **Deletions wn->amy (test 27).** We sent kind:5 and MDK applied it (test 23), but nothing on our side applied an inbound one — a message its sender believed was gone stayed on screen. `MarmotManager.deletedIds` mirrors `editOverlays` with the same account-identity rule MDK uses for a self-retraction; `amy marmot message list` reports `deleted` and blanks the body. Android already applied these through LocalCache's NIP-09 path, which enforces the same author check. MDK also honours an admin *moderation* delete carrying an authenticated grant frozen at ingest. We issue no such grant, so a cross-author delete is ignored rather than guessed at. **Retention wn->amy (test 28).** Test 26 proved MDK accepts a group requiring 0x8005 with our bytes; the read side was untested, and that is where the epoch-pinning rule lives — a message keeps the retention of the epoch that DELIVERED it. Adds `MarmotManager.setMessageRetention` (the component's explicitly-allowed mid-life update, admin-only), `amy marmot group set-retention`, and a pinned `expires_at` on every message row. The test has wn send under one policy, amy re-time the group, wn send again, and asserts the two messages carry different pinned expiries. **Disband amy->wn (test 29).** Our disband staged a bare lifecycle update. `group-lifecycle-v1.md` fixes the whole Commit — the lifecycle update, an admin-policy replacement naming only the committer, and a Remove for every other leaf, all inline — and MDK rejects anything else as an unsupported lifecycle transition, which would have left the group live for every member while reading as ended here. `MlsGroupManager.stageDisband` now builds that shape, `stageEnableDisbanding` covers a group predating the component, and `amy marmot group disband --yes` drives it. Also labels `MarmotIngestResult.Ignored` with the branch that produced it. Four very different situations collapsed into one unlabelled result, which made a client stuck in convergence indistinguishable from a quiet one — that ambiguity cost most of the time spent diagnosing test 29. Three directions stay uncovered because the reference CLI cannot originate them: edits wn->amy (no `wn messages edit`, and kind 1009 is reserved against `send-event`), setting retention from wn, and disband wn->amy. MDK's runtime and uniffi surfaces expose all three; only its CLI does not. Documented in cli/tests/README.md. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- cli/README.md | 4 +- .../com/vitorpamplona/amethyst/cli/Main.kt | 2 + .../amethyst/cli/commands/GroupCommands.kt | 4 + .../cli/commands/GroupMembershipCommands.kt | 61 ++++ .../cli/commands/GroupMetadataCommands.kt | 25 ++ .../cli/commands/GroupReadCommands.kt | 7 + .../amethyst/cli/commands/MessageCommands.kt | 18 +- cli/tests/README.md | 20 ++ cli/tests/marmot/marmot-interop-headless.sh | 3 + cli/tests/marmot/tests-media.sh | 289 ++++++++++++++++++ .../amethyst/commons/marmot/MarmotIngest.kt | 44 ++- .../amethyst/commons/marmot/MarmotManager.kt | 143 +++++++-- .../commons/marmot/MarmotSyncPolicy.kt | 1 + .../commons/marmot/MarmotDisbandTest.kt | 54 ++++ .../marmot/MarmotEditsAndSystemRowsTest.kt | 77 +++++ .../commons/marmot/MarmotRetentionTest.kt | 46 +++ .../marmot/mls/group/MlsGroupManager.kt | 70 +++++ 17 files changed, 833 insertions(+), 35 deletions(-) diff --git a/cli/README.md b/cli/README.md index 9f7427e2a0..8556c5cf3d 100644 --- a/cli/README.md +++ b/cli/README.md @@ -565,9 +565,11 @@ kind:10040 out-of-band. | `amy marmot group add GID NPUB [NPUB…]` | Fetch KeyPackages and invite. | | `amy marmot group rename GID NAME` | Commit a metadata change. | | `amy marmot group promote / demote / remove GID NPUB` | Admin verbs. | +| `amy marmot group set-retention GID SECS` | Disappearing messages, in seconds (`0` disables). Not retroactive: each message keeps the expiry pinned from the epoch that delivered it. | | `amy marmot group leave GID` | Self-remove. | +| `amy marmot group disband GID --yes` | End the group for every member. Terminal and irreversible — a replacement conversation is a new group with a new id — so `--yes` is required. | | `amy marmot message send GID TEXT` | Publish a kind:9 inner event into the group. | -| `amy marmot message list GID [--limit N]` | Decrypted inner events, oldest first. Default `--limit 50`. | +| `amy marmot message list GID [--limit N]` | Decrypted inner events, oldest first. Default `--limit 50`. Each row carries `edited`, `deleted` and the pinned `expires_at`. | | `amy marmot message react GID EVENT_ID EMOJI` | Publish a kind:7 reaction. | | `amy marmot message delete GID EVENT_ID …` | Publish a kind:5 deletion. | diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Main.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Main.kt index a66a197cde..3eec899f21 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Main.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/Main.kt @@ -848,8 +848,10 @@ private fun printUsage() { | marmot group rename GID NAME commit a rename | marmot group promote GID NPUB add admin | marmot group demote GID NPUB remove admin + | marmot group set-retention GID SECS set disappearing messages (0 disables) | marmot group remove GID NPUB remove member | marmot group leave GID self-remove + | marmot group disband GID --yes end the group for everyone (irreversible) | | marmot message send GID TEXT publish kind:9 inner event into the group | marmot message list GID [--limit N] dump decrypted inner events diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCommands.kt index 4a1c239843..2df36ee707 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupCommands.kt @@ -44,8 +44,10 @@ object GroupCommands { | marmot group set-avatar-url GID URL commit a plain https avatar link | [--dim WxH] [--thumbhash TEXT] (optional opaque render hints) | marmot group clear-avatar-url GID remove the https avatar link + | marmot group set-retention GID SECS set disappearing messages (0 disables) | marmot group remove GID NPUB remove member | marmot group leave GID self-remove + | marmot group disband GID --yes end the group for everyone (irreversible) """.trimMargin() suspend fun dispatch( @@ -70,8 +72,10 @@ object GroupCommands { "clear-image" to { rest -> GroupMetadataCommands.clearImage(dataDir, rest) }, "set-avatar-url" to { rest -> GroupMetadataCommands.setAvatarUrl(dataDir, rest) }, "clear-avatar-url" to { rest -> GroupMetadataCommands.clearAvatarUrl(dataDir, rest) }, + "set-retention" to { rest -> GroupMetadataCommands.setRetention(dataDir, rest) }, "remove" to { rest -> GroupMembershipCommands.remove(dataDir, rest) }, "leave" to { rest -> GroupMembershipCommands.leave(dataDir, rest) }, + "disband" to { rest -> GroupMembershipCommands.disband(dataDir, rest) }, ), help = USAGE, ) diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMembershipCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMembershipCommands.kt index d8041a4ecf..2a96ea482a 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMembershipCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMembershipCommands.kt @@ -20,6 +20,7 @@ */ package com.vitorpamplona.amethyst.cli.commands +import com.vitorpamplona.amethyst.cli.Args import com.vitorpamplona.amethyst.cli.Context import com.vitorpamplona.amethyst.cli.DataDir import com.vitorpamplona.amethyst.cli.Output @@ -107,4 +108,64 @@ object GroupMembershipCommands { return 0 } } + + /** + * End the group for everyone. `group disband [--yes]` + * + * Terminal and irreversible: there is no un-disband commit, no later branch + * supersedes it, and a replacement conversation is a NEW group with a new + * id. `--yes` is required for exactly that reason — every other verb here + * is recoverable by issuing its opposite, and this one is not. + * + * The commit shape, the admin check and the enablement step all live in + * [com.vitorpamplona.amethyst.commons.marmot.MarmotManager.disbandGroup]; + * this only confirms the intent and reports what happened. + */ + suspend fun disband( + dataDir: DataDir, + rest: Array, + ): Int { + if (rest.isEmpty()) return Output.error("bad_args", "group disband --yes") + val args = Args(rest.drop(1).toTypedArray()) + val confirmed = args.bool("yes") + args.rejectUnknown() + if (!confirmed) { + return Output.error( + "needs_confirmation", + "disbanding ends the group for every member and cannot be undone; pass --yes", + ) + } + + Context.open(dataDir).use { ctx -> + ctx.prepare() + val gid = ctx.resolveGroupId(rest[0]) + ctx.syncIncoming() + if (!ctx.marmot.isMember(gid)) return Output.error("not_member", "not a member of group $gid") + + val targets = ctx.marmotGroupRelays(gid).ifEmpty { ctx.outboxRelays() } + // Publish-before-apply happens INSIDE disbandGroup, which refuses + // to terminalize on anything less than a relay OK — so unlike every + // other group verb here there is no second publish afterwards. A + // re-publish of a commit that already landed can still fail on a + // dropped connection, and reporting a completed, irreversible + // disband as a failure is the one wrong answer this command can + // give. + val outbound = + try { + ctx.marmot.disbandGroup(gid, targets.toList()) + } catch (e: IllegalStateException) { + return Output.error("refused", e.message ?: "cannot disband group $gid") + } + + Output.emit( + mapOf( + "group_id" to gid, + "disbanded" to (ctx.marmot.groupState(gid)?.isDisbanded == true), + "epoch" to ctx.marmot.groupEpoch(gid), + "commit_event_id" to outbound.signedEvent.id, + ), + ) + return 0 + } + } } diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt index b866836940..131518289b 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupMetadataCommands.kt @@ -177,6 +177,31 @@ object GroupMetadataCommands { } } + /** + * Set the disappearing-message duration. `group set-retention ` + * + * `0` turns disappearing messages off. The change is not retroactive: + * every message already carries the expiry pinned from the epoch that + * delivered it, so this only governs what arrives after the commit. + */ + suspend fun setRetention( + dataDir: DataDir, + rest: Array, + ): Int { + val args = Args(rest) + val gid = args.positional(0, "gid") + val raw = args.positional(1, "secs") + args.rejectUnknown() + + val secs = + raw.toULongOrNull() + ?: return Output.error("bad_args", "secs must be a whole number of seconds (0 disables)") + + return commit(dataDir, gid, mapOf("disappearing_secs" to secs.toString())) { ctx, resolved, _ -> + ctx.marmot.setMessageRetention(resolved, secs) + } + } + /** Remove the https avatar link. `group clear-avatar-url ` */ suspend fun clearAvatarUrl( dataDir: DataDir, diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupReadCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupReadCommands.kt index cacd651fe8..e914e5753c 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupReadCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GroupReadCommands.kt @@ -89,6 +89,13 @@ object GroupReadCommands { ?.decodeToString(), "members" to members, "is_admin" to (meta?.adminPubkeys?.contains(ctx.identity.pubKeyHex) == true), + // Disappearing messages, in seconds; 0 means off. + "disappearing_secs" to ctx.marmot.retentionSeconds(gid), + // The terminal state has no way back, so it is worth + // saying out loud rather than leaving a caller to infer it + // from a group that quietly refuses every verb. + "disbanded" to (ctx.marmot.groupState(gid)?.isDisbanded == true), + "lifecycle" to ctx.marmot.lifecycle(gid).name, ), ) return 0 diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/MessageCommands.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/MessageCommands.kt index e3338aa0c9..8c66e70686 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/MessageCommands.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/MessageCommands.kt @@ -104,11 +104,20 @@ object MessageCommands { if (!ctx.marmot.isMember(gid)) return Output.error("not_member", "not a member of group $gid") val raw = ctx.marmot.loadStoredMessages(gid) + val parsed = raw.mapNotNull { Event.fromJsonOrNull(it) } // An edit is not its own row: it replaces the target's text in // place. Resolving the overlay here rather than in the renderer is // what keeps every front end from re-deriving the authorship and // tie-break rules, and getting one of them subtly different. - val overlays = ctx.marmot.editOverlays(raw.mapNotNull { Event.fromJsonOrNull(it) }) + val overlays = ctx.marmot.editOverlays(parsed) + // A deletion is not its own row either. The retracted body is + // blanked rather than the row dropped, so a harness (or a reader + // paging back) can tell "retracted" from "never arrived". + val deleted = ctx.marmot.deletedIds(parsed) + // Pinned at persist time from the retention of the epoch that + // DELIVERED each message, so it is the message's own expiry and not + // a recomputation against whatever the group's setting is now. + val expiries = ctx.marmot.messageExpiries(gid) val items = raw .map { line -> @@ -117,12 +126,15 @@ object MessageCommands { val obj = Output.mapper.readValue>(line) val id = obj["id"] as? String val edited = overlays[id] + val retracted = id != null && id in deleted mapOf( "event_id" to obj["id"], "author" to obj["pubkey"], "kind" to obj["kind"], - "content" to (edited ?: obj["content"]), - "edited" to (edited != null), + "content" to if (retracted) "" else (edited ?: obj["content"]), + "edited" to (edited != null && !retracted), + "deleted" to retracted, + "expires_at" to expiries[id], "created_at" to obj["created_at"], ) } catch (_: Exception) { diff --git a/cli/tests/README.md b/cli/tests/README.md index 564f899a53..c3ae7cfb59 100644 --- a/cli/tests/README.md +++ b/cli/tests/README.md @@ -28,6 +28,8 @@ cli/tests/ │ ├── tests-create.sh # tests 01–05 │ ├── tests-manage.sh # tests 06–08, 11 │ ├── tests-extras.sh # tests 09, 10, 12, 13 +│ ├── tests-media.sh # tests 20-29 (avatar, edits, deletions, +│ │ # media v2, retention, disband) ├── nests/ # Audio-rooms interop (Amethyst ↔ nostrnests.com) │ ├── nests-interop.sh # 47-test manual harness │ └── README.md # operator brief + per-test matrix @@ -91,6 +93,24 @@ The Marmot harnesses come in two flavours, same scenarios: and for iterating on the Nostr/Marmot plumbing without needing to touch a phone. + Most features are covered in BOTH directions — founding (02/03), adding + (04/05), removal (06/14), leaving (11/15), keypackage rotation (13/16), + agent streams (18/19), avatar URL (20/21), encrypted media v2 (24/25), + deletion (23/27), retention (26/28). Three gaps are the reference CLI's, + not ours, and cannot be closed from here: + + - **edits wn→amy.** `wn messages` has no `edit` verb, and MDK reserves + kind 1009 so `messages send-event` refuses to forge one. MDK's runtime + has `edit_message` and its uniffi surface exposes it; only the CLI + does not. + - **setting retention from wn.** `wn groups` has no retention verb and + `groups create` has no flag for it, so test 28 has amy own the setting + and wn own the sending — which is the half that was untested anyway, + since inbound messages are where the epoch-pinning rule lives. + - **disband wn→amy.** Same shape: `disband_group` exists on MDK's runtime + and uniffi surface (the apps call it) but has no `wn groups` verb, so + test 29 runs one way only. + A third, slimmer harness covers the NIP-17 DM surface: - **`dm/dm-interop-headless.sh`** — two `amy` processes (Identity A and diff --git a/cli/tests/marmot/marmot-interop-headless.sh b/cli/tests/marmot/marmot-interop-headless.sh index 0beb42cbb2..5aa8a3786d 100755 --- a/cli/tests/marmot/marmot-interop-headless.sh +++ b/cli/tests/marmot/marmot-interop-headless.sh @@ -208,6 +208,9 @@ ALL_TESTS=( test_24_media_v2_amy_to_wn test_25_media_v2_wn_to_amy test_26_retention_amy_to_wn + test_27_deletion_wn_to_amy + test_28_retention_wn_to_amy + test_29_disband_amy_to_wn ) # --tests runs a subset in the order given. Most tests read state a previous diff --git a/cli/tests/marmot/tests-media.sh b/cli/tests/marmot/tests-media.sh index 7724b953cc..e53499e8fe 100644 --- a/cli/tests/marmot/tests-media.sh +++ b/cli/tests/marmot/tests-media.sh @@ -404,3 +404,292 @@ test_26_retention_amy_to_wn() { record_result "$id" fail "amy never received wn's message in the retention group" fi } + +# --- 27: a deletion the other way --------------------------------------------- +# Test 23 proves MDK applies OUR kind:5. This is the direction that was never +# covered, and it is the worse failure of the two: a message its sender believes +# is gone that stays on screen here. +# +# The authorization rule is the whole test. A kind:5 is authorized by ACCOUNT, +# so wn retracting its OWN message must land, and the forged cross-author case +# — which no CLI can send — is pinned in `MarmotEditsAndSystemRowsTest`. +test_27_deletion_wn_to_amy() { + banner "Test 27 — wn deletes its own message; amy marks it deleted" + local id="27 deletion wn->amy" + + local gid mls_gid + read -r gid mls_gid < <(media_group) || { record_result "$id" fail "could not build the media group"; return; } + if [[ -z "${gid:-}" ]]; then record_result "$id" fail "could not build the media group"; return; fi + + local doomed="delete-me-from-whitenoise" + if ! wn_b messages send "$mls_gid" "$doomed" >/dev/null 2>&1; then + record_result "$id" fail "wn send failed"; return + fi + if ! amy_json marmot await message "$gid" --match "$doomed" --timeout 90 >/dev/null; then + record_result "$id" fail "amy never received the message to delete"; return + fi + + # Both sides key the message by the SAME inner event id, so amy's view of it + # is what we hand back to wn's deleter. + local target + target=$(amy_json marmot message list "$gid" --limit 50 2>/dev/null \ + | jq_list messages \ + | jq -r --arg c "$doomed" 'select((.content // "") == $c) | .event_id' | head -n 1) + if [[ -z "$target" || "$target" == "null" ]]; then + record_result "$id" fail "amy has no event id for wn's message"; return + fi + + if ! wn_b messages delete "$mls_gid" "$target" >/dev/null 2>&1; then + record_result "$id" fail "wn messages delete failed"; return + fi + + # The row stays, blanked and flagged: "retracted" and "never arrived" are + # different states to a reader, and only one of them is worth telling them + # about. + local deadline=$(( $(date +%s) + 120 )) gone=0 body="unset" + while [[ $(date +%s) -lt $deadline ]]; do + local row + row=$(amy_json marmot message list "$gid" --limit 50 2>/dev/null \ + | jq_list messages | jq -c --arg t "$target" 'select(.event_id == $t)' | head -n 1) + if [[ -n "$row" ]] && printf '%s' "$row" | jq -e 'select(.deleted == true)' >/dev/null 2>&1; then + gone=1 + body=$(printf '%s' "$row" | jq -r '.content') + break + fi + sleep 3 + done + + if [[ "$gone" -ne 1 ]]; then + record_result "$id" fail "amy never marked wn's message deleted"; return + fi + if [[ -n "$body" ]]; then + record_result "$id" fail "amy flagged the message deleted but still shows '$body'"; return + fi + record_result "$id" pass +} + +# --- 28: retention, applied to what wn sends ---------------------------------- +# Test 26 proves MDK ACCEPTS a group that requires `0x8005` with our bytes. This +# is the read side, and it is the half the epoch-pinning rule lives in: each +# message keeps the retention of the epoch that DELIVERED it, so a later change +# must not shorten, extend or restore an expiry that already exists. +# +# Driving it from wn is the point. Our own sends pin at persist time from state +# this client just wrote; an inbound message arrives under an epoch the group +# may already have moved past, which is exactly where the fallback used to be +# wrong. (`wn` itself has no retention setter — `wn groups` is list/create/show/ +# add-members/remove-members/members/admins/relays/leave/rename/set-avatar-url — +# so amy owns the setting and wn owns the sending.) +test_28_retention_wn_to_amy() { + banner "Test 28 — amy re-times a group; wn's messages pin the epoch that delivered them" + local id="28 retention wn->amy" + + local short=60 long=86400 + local out gid mls_gid + out=$(amy_json marmot group create --name "Interop-Retention-Inbound" --disappearing-secs "$short") || { + record_result "$id" fail "amy group create --disappearing-secs failed"; return + } + gid=$(printf '%s' "$out" | jq -r '.group_id') + mls_gid=$(printf '%s' "$out" | jq -r '.mls_group_id') + if [[ -z "$gid" || "$gid" == "null" ]]; then + record_result "$id" fail "amy reported no group id"; return + fi + + amy_json marmot group add "$gid" "$B_NPUB" >/dev/null || { + record_result "$id" fail "amy could not invite wn"; return + } + local b_gid + b_gid=$(wait_for_invite B 60) || { + record_result "$id" fail "wn never received the Welcome"; return + } + wn_b groups accept "$b_gid" >/dev/null 2>&1 || true + + local early="retention-inbound-early" + wn_b messages send "$mls_gid" "$early" >/dev/null 2>&1 || { + record_result "$id" fail "wn could not send under the first policy"; return + } + if ! amy_json marmot await message "$gid" --match "$early" --timeout 90 >/dev/null; then + record_result "$id" fail "amy never received wn's first message"; return + fi + + # Now move the policy. The commit opens a new epoch, and only messages + # delivered by that epoch take the new duration. + if ! amy_json marmot group set-retention "$gid" "$long" >/dev/null; then + record_result "$id" fail "amy set-retention failed"; return + fi + sleep 3 + wn_b sync >/dev/null 2>&1 || true + + local late="retention-inbound-late" + local sent=0 attempt + for attempt in 1 2 3 4 5; do + if wn_b messages send "$mls_gid" "$late" >/dev/null 2>&1; then sent=1; break; fi + wn_b sync >/dev/null 2>&1 || true + sleep 5 + done + if [[ "$sent" -ne 1 ]]; then + record_result "$id" fail "wn could not send after the retention change"; return + fi + if ! amy_json marmot await message "$gid" --match "$late" --timeout 120 >/dev/null; then + record_result "$id" fail "amy never received wn's second message"; return + fi + + # `expires_at` is the value amy PINNED, not a recomputation: created_at plus + # the duration that applied at the delivering epoch. + local rows early_created early_expiry late_created late_expiry + rows=$(amy_json marmot message list "$gid" --limit 50 2>/dev/null | jq_list messages) + early_created=$(printf '%s' "$rows" | jq -r --arg c "$early" 'select((.content // "") == $c) | .created_at' | head -n 1) + early_expiry=$(printf '%s' "$rows" | jq -r --arg c "$early" 'select((.content // "") == $c) | .expires_at' | head -n 1) + late_created=$(printf '%s' "$rows" | jq -r --arg c "$late" 'select((.content // "") == $c) | .created_at' | head -n 1) + late_expiry=$(printf '%s' "$rows" | jq -r --arg c "$late" 'select((.content // "") == $c) | .expires_at' | head -n 1) + printf 'retention28 early=%s/%s late=%s/%s\n' \ + "${early_created:-?}" "${early_expiry:-?}" "${late_created:-?}" "${late_expiry:-?}" >>"$LOG_FILE" + + if [[ -z "$early_expiry" || "$early_expiry" == "null" || -z "$late_expiry" || "$late_expiry" == "null" ]]; then + record_result "$id" fail "amy pinned no expiry for one of wn's messages"; return + fi + if [[ "$early_expiry" -ne $(( early_created + short )) ]]; then + record_result "$id" fail "the first message expires at $early_expiry, wanted $(( early_created + short ))"; return + fi + if [[ "$late_expiry" -ne $(( late_created + long )) ]]; then + record_result "$id" fail "the second message expires at $late_expiry, wanted $(( late_created + long ))"; return + fi + record_result "$id" pass +} + +# --- 29: disband --------------------------------------------------------------- +# The terminal state, and the one with no way back: there is no un-disband +# commit, no later branch supersedes it, and a replacement conversation is a new +# MLS group with a new id. Two implementations disagreeing about whether a group +# ended is unrecoverable by construction, which is why it is worth a test even +# though it can only run one way. +# +# `group-lifecycle-v1.md` fixes the whole Commit shape — the lifecycle update, +# an admin-policy replacement naming only the committer, and a Remove for every +# other leaf — and MDK validates all of it before applying anything. A Commit +# carrying only the lifecycle update, which is what we used to send, is rejected +# as an unsupported lifecycle transition, so wn ACCEPTING this one is the +# assertion. +# +# What that acceptance looks like through `wn` is narrower than you would hope, +# and the narrowing is not our side being coy: +# +# - the group does not disappear. The spec has a disbanded client keep a +# read-only authenticated tombstone, and MDK keeps listing it. +# - the app-level projection freezes. `groups members` and `groups admins` +# keep reporting the last state in which wn held a leaf, because this Commit +# removes that leaf — so neither moves, however the Commit is handled. +# - `wn` does not print the state that would say it outright. MDK's +# `AppGroupMlsState` carries `lifecycle_state` and `disbanding_enabled`, and +# its uniffi surface hands both to the apps, but the CLI's +# `group_mls_state_json` emits only group_id/epoch/member_count/ +# required_app_components. +# +# That leaves the MLS epoch, and it is enough: the disband is the only Commit +# published in the window, both sides are made to agree on the epoch before it, +# and a wn that refused it stays where it was. +# +# One direction only: MDK exposes disband on its uniffi surface (the apps call +# `disband_group`) but `wn groups` has no verb for it, so wn cannot originate +# one here. +test_29_disband_amy_to_wn() { + banner "Test 29 — amy disbands a group; wn accepts the terminal commit" + local id="29 disband amy->wn" + + # Its own group, and the LAST thing that happens to it: disband is absorbing, + # so nothing else can be tested in a group afterwards. + local out gid mls_gid + out=$(amy_json marmot group create --name "Interop-Disband") || { + record_result "$id" fail "amy group create failed"; return + } + gid=$(printf '%s' "$out" | jq -r '.group_id') + mls_gid=$(printf '%s' "$out" | jq -r '.mls_group_id') + if [[ -z "$gid" || "$gid" == "null" ]]; then + record_result "$id" fail "amy reported no group id"; return + fi + + amy_json marmot group add "$gid" "$B_NPUB" >/dev/null || { + record_result "$id" fail "amy could not invite wn"; return + } + local b_gid + b_gid=$(wait_for_invite B 60) || { + record_result "$id" fail "wn never received the Welcome"; return + } + wn_b groups accept "$b_gid" >/dev/null 2>&1 || true + + # A message first, so wn is demonstrably live in the group before the end — + # otherwise a quiet wn afterwards could just mean it never joined. + local alive="before-the-end" + amy_json marmot message send "$gid" "$alive" >/dev/null || { + record_result "$id" fail "amy could not send into the group"; return + } + if ! wait_for_message B "$mls_gid" "$alive" 90; then + record_result "$id" fail "wn never joined the group properly"; return + fi + + # Agree on the epoch before committing anything terminal. This is both the + # baseline the assertion below reads against and what a real client does — it + # reads the group before acting on it — and it matters more here than + # anywhere else: an ordinary commit off a stale epoch is survivable because + # convergence settles it, and this one is not, since a disbanded client stops + # processing group traffic by design and can never learn it lost a branch. + local wn_epoch amy_epoch before_epoch="" + local settle=$(( $(date +%s) + 120 )) + while [[ $(date +%s) -lt $settle ]]; do + wn_epoch=$(wn_b_json groups show "$mls_gid" 2>/dev/null | jq -r '.result.mls.epoch // empty') + amy_epoch=$(amy_json marmot group show "$gid" 2>/dev/null | jq -r '.epoch // empty') + if [[ -n "$wn_epoch" && "$wn_epoch" == "$amy_epoch" ]]; then before_epoch="$amy_epoch"; break; fi + wn_b sync >/dev/null 2>&1 || true + sleep 5 + done + if [[ -z "$before_epoch" ]]; then + record_result "$id" fail "amy (epoch ${amy_epoch:-?}) and wn (epoch ${wn_epoch:-?}) never agreed before the disband" + return + fi + + # Retry a disband the relay never acknowledged. That is not a protocol + # failure — the commit stays a queued publish obligation and the group stays + # live, exactly as `disbandGroup` reports — and a real client tries again. The + # loopback relay drops a connection often enough under a full-suite run to be + # worth spelling out rather than reading as a conformance failure. + local disbanded=0 attempt + for attempt in 1 2 3; do + if amy_json marmot group disband "$gid" --yes >/dev/null; then disbanded=1; break; fi + sleep 10 + done + if [[ "$disbanded" -ne 1 ]]; then + record_result "$id" fail "amy group disband failed"; return + fi + + # Terminal here, and the tree is down to the committing leaf — the Remove + # half of the shape, which the reference client cannot show us but our own + # state can. + local after after_epoch members + after=$(amy_json marmot group show "$gid" 2>/dev/null || true) + after_epoch=$(printf '%s' "$after" | jq -r '.epoch // empty') + members=$(printf '%s' "$after" | jq -r '.members | length') + if [[ "$(printf '%s' "$after" | jq -r '.disbanded // false')" != "true" ]]; then + record_result "$id" fail "amy does not read its own group as disbanded"; return + fi + if [[ "$members" != "1" ]]; then + record_result "$id" fail "amy kept $members leaves after the disband; the shape requires only the committer"; return + fi + if [[ -z "$after_epoch" || "$after_epoch" == "$before_epoch" ]]; then + record_result "$id" fail "amy's epoch did not advance past $before_epoch"; return + fi + + local deadline=$(( $(date +%s) + 150 )) accepted=0 saw="" + while [[ $(date +%s) -lt $deadline ]]; do + saw=$(wn_b_json groups show "$mls_gid" 2>/dev/null | jq -r '.result.mls.epoch // empty') + if [[ -n "$saw" && "$saw" == "$after_epoch" ]]; then accepted=1; break; fi + wn_b sync >/dev/null 2>&1 || true + sleep 5 + done + printf 'disband29 epoch %s -> %s, wn at %s\n' "$before_epoch" "$after_epoch" "${saw:-}" >>"$LOG_FILE" + + if [[ "$accepted" -ne 1 ]]; then + record_result "$id" fail "wn stayed at epoch ${saw:-} instead of amy's $after_epoch — it rejected the disband commit" + return + fi + record_result "$id" pass +} diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt index 9b4a361ee3..2ebdf1ed8a 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotIngest.kt @@ -78,8 +78,19 @@ sealed class MarmotIngestResult { val retainedEpochCount: Int, ) : MarmotIngestResult() - /** Deduplicate / out-of-order commits / unsupported content. Not an error. */ - data object Ignored : MarmotIngestResult() + /** + * Deduplicate / out-of-order commits / unsupported content. Not an error. + * + * [reason] names the branch that produced it. Several very different + * situations land here — a replayed event we already merged, a commit held + * for convergence, an app message decrypted on a losing branch, traffic in + * a group we have terminalized — and collapsing them into one unlabelled + * result made a stuck client indistinguishable from a quiet one in the + * logs. + */ + data class Ignored( + val reason: String, + ) : MarmotIngestResult() /** Something blew up. Callers log. */ data class Failure( @@ -102,14 +113,14 @@ suspend fun MarmotManager.ingest(event: Event): MarmotIngestResult = when (event) { is GiftWrapEvent -> ingestGiftWrap(event) is GroupEvent -> ingestGroupEvent(event) - else -> MarmotIngestResult.Ignored + else -> MarmotIngestResult.Ignored("unhandled kind ${event.kind}") } private suspend fun MarmotManager.ingestGiftWrap(wrap: GiftWrapEvent): MarmotIngestResult { // A relay `since` cursor cannot skip a backdated event, and NIP-59 wraps // are backdated by up to two days on purpose — so without a durable marker // every wrap in that band is unwrapped and re-decided on every single sync. - if (isTerminallyIngested(wrap.id)) return MarmotIngestResult.Ignored + if (isTerminallyIngested(wrap.id)) return MarmotIngestResult.Ignored("already ingested") val result = ingestGiftWrapUncached(wrap) when (result) { // Joined, or already in the group: nothing more can come of this wrap. @@ -133,9 +144,9 @@ private suspend fun MarmotManager.ingestGiftWrapUncached(wrap: GiftWrapEvent): M // kind:444 Welcome rumor. Checking `isWelcomeEvent` on the seal itself // (the old bug) always took the Ignored branch and silently dropped // every inbound Welcome. - val rumor = wrap.unwrapAndUnsealOrNull(signer) ?: return MarmotIngestResult.Ignored + val rumor = wrap.unwrapAndUnsealOrNull(signer) ?: return MarmotIngestResult.Ignored("gift wrap is not for us") if (!MarmotInboundProcessor.isWelcomeEvent(rumor) || rumor !is WelcomeEvent) { - return MarmotIngestResult.Ignored + return MarmotIngestResult.Ignored("gift wrap does not carry a Welcome") } when (val result = processWelcome(rumor, rumor.nostrGroupId())) { is WelcomeResult.Joined -> { @@ -190,17 +201,24 @@ private suspend fun MarmotManager.ingestGroupEvent(ge: GroupEvent): MarmotIngest MarmotIngestResult.ProposalStaged(result.groupId, result.senderLeafIndex) } - is GroupEventResult.Duplicate, - is GroupEventResult.CommitPending, + is GroupEventResult.Duplicate -> MarmotIngestResult.Ignored("already merged") + + // Held, not dropped: a commit we cannot advance onto linearly is + // candidate material for a convergence pass that has to settle before + // it can be applied. Saying so matters — this is the one Ignored that + // means "come back", and a client that never settles repeats it + // forever while looking idle. + is GroupEventResult.CommitPending -> MarmotIngestResult.Ignored("commit held for convergence") + // Decrypted only on a losing branch: real protocol input (it may have // witnessed for that branch), but never application output. - is GroupEventResult.AppMessageOnCandidateBranch, + is GroupEventResult.AppMessageOnCandidateBranch -> + MarmotIngestResult.Ignored("app message on a candidate branch") + // Disbanded or locally unrecoverable — refused before decryption, so // there is nothing to deliver and nothing to retain. - is GroupEventResult.RefusedByLifecycle, - -> { - MarmotIngestResult.Ignored - } + is GroupEventResult.RefusedByLifecycle -> + MarmotIngestResult.Ignored("refused by lifecycle ${result.lifecycle}") is GroupEventResult.UndecryptableOuterLayer -> { MarmotIngestResult.UndecryptableOuter(result.groupId, result.retainedEpochCount) diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index fd3b166867..7d5cddd876 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -80,8 +80,10 @@ import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner import com.vitorpamplona.quartz.nip01Core.tags.people.PTag import com.vitorpamplona.quartz.nip01Core.tags.people.pTags +import com.vitorpamplona.quartz.nip09Deletions.DeletionEvent import com.vitorpamplona.quartz.nip18Reposts.quotes.QEventTag import com.vitorpamplona.quartz.nip18Reposts.quotes.quote +import com.vitorpamplona.quartz.nip59Giftwrap.rumors.RumorAssembler import com.vitorpamplona.quartz.utils.Log import com.vitorpamplona.quartz.utils.TimeUtils import com.vitorpamplona.quartz.utils.sha256.sha256 @@ -507,8 +509,7 @@ class MarmotManager( } } val innerEvent = - com.vitorpamplona.quartz.nip59Giftwrap.rumors.RumorAssembler - .assembleRumor(signer.pubKey, template) + RumorAssembler.assembleRumor(signer.pubKey, template) val outbound = buildGroupMessage(nostrGroupId, innerEvent) if (persistOwn) persistDecryptedMessage(nostrGroupId, innerEvent.toJson()) return TextMessageBundle(outbound = outbound, innerEvent = innerEvent) @@ -700,15 +701,8 @@ class MarmotManager( persistOwn: Boolean = true, ): TextMessageBundle { require(targetEvents.isNotEmpty()) { "buildDeletionMessage: targetEvents must not be empty" } - val template = - com.vitorpamplona.quartz.nip09Deletions.DeletionEvent - .build(targetEvents) - val innerEvent = - com.vitorpamplona.quartz.nip59Giftwrap.rumors.RumorAssembler - .assembleRumor( - signer.pubKey, - template, - ) + val template = DeletionEvent.build(targetEvents) + val innerEvent = RumorAssembler.assembleRumor(signer.pubKey, template) val outbound = buildGroupMessage(nostrGroupId, innerEvent) if (persistOwn) persistDecryptedMessage(nostrGroupId, innerEvent.toJson()) return TextMessageBundle(outbound = outbound, innerEvent = innerEvent) @@ -1389,6 +1383,50 @@ class MarmotManager( return overlays } + /** + * The ids of messages a kind:5 in [messages] retracted. + * + * Deletion is the mirror of [editOverlays] and follows the same authorship + * rule, for the same reason: a retraction is authorized by Marmot ACCOUNT + * identity, so a second device of the same account may retract its own + * account's message and no other account's deletion is honoured. Without + * that check any member could erase anyone's words by publishing a kind:5 + * naming them. + * + * MDK additionally honours an *admin moderation* delete when the deleter + * held an authenticated moderation grant frozen at ingest. We do not issue + * or track that grant, so a cross-author delete is ignored here rather than + * guessed at — ignoring one MDK would have applied hides a message less + * often than applying one it would have rejected erases a message wrongly. + * + * A deletion naming a message this client does not hold contributes + * nothing: it is not invalid, the target may simply not have arrived yet, + * and this is recomputed from the whole stored log on every read, so it + * resolves as soon as the target lands. + * + * [messages] is the group's decrypted app events — the deletions and their + * targets together, since a deletion is only authorized against the message + * it names. + */ + fun deletedIds(messages: List): Set { + val authorOf = HashMap(messages.size) + val claims = ArrayList>() + for (event in messages) { + if (event.kind == DeletionEvent.KIND) { + for (tag in event.tags) { + if (tag.size >= 2 && tag[0] == "e") claims.add(tag[1] to event.pubKey) + } + } else { + authorOf[event.id] = event.pubKey + } + } + val deleted = HashSet(claims.size) + for ((targetId, deleter) in claims) { + if (authorOf[targetId] == deleter) deleted.add(targetId) + } + return deleted + } + /** * The slice of canonical group state that kind:1210 rows are derived from, * or null when this client is not in the group. @@ -1575,6 +1613,20 @@ class MarmotManager( } } + /** + * Every pinned expiry in the group, keyed by inner event id. + * + * Messages with no entry never expire — either the group has no retention + * policy or none applied at the epoch that delivered them. + */ + suspend fun messageExpiries(nostrGroupId: HexKey): Map = + try { + messageStore?.loadExpiries(nostrGroupId) ?: emptyMap() + } catch (e: Exception) { + Log.w("MarmotManager", "Failed to read expiries for $nostrGroupId", e) + emptyMap() + } + /** * Delete every message whose pinned expiry has passed. * @@ -1728,6 +1780,48 @@ class MarmotManager( }.event } + /** + * Set the group's disappearing-message duration, in seconds. `0` disables. + * + * Admin-only, both here and at every peer. Changing it is explicitly a + * mid-life operation the component allows, and it is NOT retroactive: each + * message already pins the retention of the epoch that delivered it, so a + * change from here only governs messages delivered by the epoch this + * commit opens. [commitAndPublish] records the new value against that epoch + * on confirmation, which is what later arrivals under it read. + * + * A legacy group carries the same setting inside the monolithic `0xF2EE` + * blob, so it is rewritten whole there — with the MIP-01 spelling, where + * "off" is an absent field rather than a zero. + */ + suspend fun setMessageRetention( + nostrGroupId: HexKey, + disappearingMessageSecs: ULong, + relays: List = groupRelays(nostrGroupId), + ): OutboundGroupEvent { + val view = groupView(nostrGroupId) ?: throw IllegalStateException("Not a member of group $nostrGroupId") + check(signer.pubKey in view.adminPubkeys) { + "Only an admin of group $nostrGroupId can change its message retention" + } + if (!view.isCurrentProfile) { + val legacy = + groupMetadata(nostrGroupId) + ?: throw IllegalStateException("Legacy group $nostrGroupId has no MarmotGroupData") + return updateGroupMetadata( + nostrGroupId, + legacy.copy(disappearingMessageSecs = disappearingMessageSecs.takeIf { it > 0uL }), + relays, + ) + } + return commitAndPublish(nostrGroupId, relays) { + groupManager.stageAppDataUpdate( + nostrGroupId, + MessageRetentionV1.COMPONENT_ID, + MessageRetentionV1(disappearingMessageSecs).encode(), + ) + }.event + } + /** * Replace the group's admin set, writing to whichever carrier the group uses. * @@ -1803,6 +1897,12 @@ class MarmotManager( * no relay acknowledged does not terminalize the group locally either — * exactly the outcome we want, since a locally-disbanded group nobody else * heard about would be unreachable state. + * + * The Commit itself is not a bare lifecycle update: `group-lifecycle-v1.md` + * fixes its whole shape — the lifecycle update, a full admin-policy + * replacement naming only the committer, and a Remove for every other leaf + * — and a peer rejects anything else as an unsupported lifecycle + * transition. See [MlsGroupManager.stageDisband]. */ suspend fun disbandGroup( nostrGroupId: HexKey, @@ -1822,14 +1922,21 @@ class MarmotManager( // the point: disbanding from state we do not trust would publish a // terminal commit off a fork. requireOutboundAllowed(nostrGroupId, "disband the group") - val publication = - commitAndPublish(nostrGroupId, relays) { - groupManager.stageAppDataUpdate( - nostrGroupId, - GroupLifecycleV1.COMPONENT_ID, - GroupLifecycleV1.DISBANDED.encode(), - ) + + // The disband Commit is only valid when `0x800c` is ALREADY required in + // the candidate parent, so a group that predates the component needs + // the enablement Commit of its own first. Every group this client + // creates requires it from epoch 0, so this is the older-group and + // other-implementation path, not the common one. + if (groupState(nostrGroupId)?.requires(GroupLifecycleV1.COMPONENT_ID) != true) { + val enablement = commitAndPublish(nostrGroupId, relays) { groupManager.stageEnableDisbanding(nostrGroupId) } + check(enablement.confirmed) { + "Could not enable disbanding on group $nostrGroupId: no relay acknowledged the enablement " + + "commit, so the group is unchanged and still live" } + } + + val publication = commitAndPublish(nostrGroupId, relays) { groupManager.stageDisband(nostrGroupId) } // Every other setter is content to leave an unacknowledged commit as a // retryable obligation and say nothing, because a later retry lands the // same state. This one cannot: the caller is about to tell a human the diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotSyncPolicy.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotSyncPolicy.kt index c06fccdf52..c8cb6f5726 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotSyncPolicy.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotSyncPolicy.kt @@ -157,6 +157,7 @@ class MarmotSyncPolicy( val detail = when (result) { is MarmotIngestResult.Failure -> " ${result.message}" + is MarmotIngestResult.Ignored -> " (${result.reason})" else -> "" } log("ingest ${event.kind}/${event.id.take(8)} via $relay → ${result::class.simpleName}$detail") diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt index 75311c3305..c6be35f720 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt @@ -97,6 +97,60 @@ class MarmotDisbandTest { assertTrue(thrown.message.orEmpty().contains("already disbanded")) } + @Test + fun `the disband commit carries the whole shape the spec fixes`() = + runBlocking { + // `group-lifecycle-v1.md` fixes every part of this Commit, and a + // peer validates the whole set: the lifecycle update alone — which + // is what this used to send — reads as an unsupported transition + // and is rejected, leaving the group live for everyone else while + // reading as ended here. + val alice = Fixture() + val bob = Fixture() + alice.createCurrentProfile() + + val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) + val (_, welcome) = alice.manager.addMember(nostrGroupId, kp, emptyList()) + bob.manager.ingest(welcome!!.giftWrapEvent) + assertEquals(2, alice.manager.memberCount(nostrGroupId)) + + alice.manager.disbandGroup(nostrGroupId) + + assertTrue(alice.manager.groupState(nostrGroupId)?.isDisbanded == true) + // Every leaf but the committer's is gone, and the admin policy is a + // full replacement naming only the committer. + assertEquals(1, alice.manager.memberCount(nostrGroupId)) + assertEquals( + listOf(alice.signer.pubKey), + alice.manager.groupView(nostrGroupId)?.adminPubkeys, + ) + } + + @Test + fun `a witness applies the disband and lands terminal`() = + runBlocking { + // The half that matters for interop: the removed member has to be + // able to APPLY the commit that removes them, read the terminal + // state out of it, and stop — not reject it and sit at the old + // epoch believing the group is still live. + val alice = Fixture() + val bob = Fixture() + alice.createCurrentProfile() + + val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) + val (_, welcome) = alice.manager.addMember(nostrGroupId, kp, emptyList()) + bob.manager.ingest(welcome!!.giftWrapEvent) + + val commit = alice.manager.disbandGroup(nostrGroupId) + bob.manager.ingest(commit.signedEvent) + + assertEquals(GroupLifecycleState.DISBANDED, bob.manager.lifecycle(nostrGroupId)) + assertFailsWith { + bob.manager.buildTextMessage(nostrGroupId, "still here?") + } + Unit + } + @Test fun `a non-admin member cannot disband`() = runBlocking { diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt index d40d9216a4..6e27962957 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotEditsAndSystemRowsTest.kt @@ -27,6 +27,7 @@ import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal +import com.vitorpamplona.quartz.nip09Deletions.DeletionEvent import kotlinx.coroutines.runBlocking import kotlin.test.Test import kotlin.test.assertEquals @@ -101,6 +102,82 @@ class MarmotEditsAndSystemRowsTest { assertNull(f.manager.editOverlays(f.manager.storedEvents())[original.innerEvent.id]) } + @Test + fun `an author's own kind 5 retracts their message`() = + runBlocking { + val f = Fixture() + f.createGroup() + val doomed = f.manager.buildTextMessage(nostrGroupId, "delete me") + f.manager.buildDeletionMessage(nostrGroupId, listOf(doomed.innerEvent)) + + assertTrue(doomed.innerEvent.id in f.manager.deletedIds(f.manager.storedEvents())) + } + + @Test + fun `a deletion from another account is ignored`() = + runBlocking { + val f = Fixture() + f.createGroup() + val mine = f.manager.buildTextMessage(nostrGroupId, "mine") + + // Same shape as the forged edit above, and the same reason: the + // transport lets any member publish a well-formed kind:5 naming + // someone else's message, so the reader is the only place that can + // refuse it. MDK additionally honours an authenticated admin + // moderation grant here; we issue none, so every cross-author + // delete is ignored. + val impostor = "f".repeat(64) + val forged = + MarmotAppEvent.build( + pubKey = impostor, + kind = DeletionEvent.KIND, + content = "", + createdAt = 1_800_000_000L, + tags = arrayOf(arrayOf("e", mine.innerEvent.id)), + ) + f.manager.persistDecryptedMessage(nostrGroupId, forged.toJson().dropLast(1) + ",\"sig\":\"\"}") + + assertTrue(mine.innerEvent.id !in f.manager.deletedIds(f.manager.storedEvents())) + } + + @Test + fun `one kind 5 retracts every message it names`() = + runBlocking { + val f = Fixture() + f.createGroup() + val first = f.manager.buildTextMessage(nostrGroupId, "one") + val second = f.manager.buildTextMessage(nostrGroupId, "two") + val spared = f.manager.buildTextMessage(nostrGroupId, "three") + f.manager.buildDeletionMessage(nostrGroupId, listOf(first.innerEvent, second.innerEvent)) + + val deleted = f.manager.deletedIds(f.manager.storedEvents()) + assertEquals(setOf(first.innerEvent.id, second.innerEvent.id), deleted) + assertTrue(spared.innerEvent.id !in deleted) + } + + @Test + fun `a deletion naming a message we do not hold retracts nothing`() = + runBlocking { + // Not invalid — the target may simply not have arrived yet — so it + // contributes nothing rather than being treated as an error. The + // overlay is recomputed from the whole log on every read, so it + // resolves as soon as the target lands. + val f = Fixture() + f.createGroup() + val absent = "9".repeat(64) + val forged = + MarmotAppEvent.build( + pubKey = f.signer.pubKey, + kind = DeletionEvent.KIND, + content = "", + createdAt = 1_800_000_000L, + tags = arrayOf(arrayOf("e", absent)), + ) + f.manager.persistDecryptedMessage(nostrGroupId, forged.toJson().dropLast(1) + ",\"sig\":\"\"}") + + assertTrue(f.manager.deletedIds(f.manager.storedEvents()).isEmpty()) + } + @Test fun `the latest edit wins`() = runBlocking { diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotRetentionTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotRetentionTest.kt index b3faee4c84..1c1f0f11d0 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotRetentionTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotRetentionTest.kt @@ -31,6 +31,7 @@ import kotlin.test.Test import kotlin.test.assertEquals import kotlin.test.assertFalse import kotlin.test.assertNotNull +import kotlin.test.assertNull import kotlin.test.assertTrue /** @@ -237,6 +238,51 @@ class MarmotRetentionTest { ) } + @Test + fun `setMessageRetention commits the component and only governs later messages`() = + runBlocking { + // The current profile's mid-life setter. The component explicitly + // allows the change; what it forbids is letting the change reach + // backwards, so the message sent before it must still expire on the + // old duration while the one sent after takes the new one. + val f = Fixture() + f.manager.createCurrentProfileGroup( + nostrGroupId = nostrGroupId, + relays = listOf("wss://relay.invalid"), + retention = MessageRetentionV1(60uL), + ) + val early = f.manager.buildTextMessage(nostrGroupId, "sixty") + + f.manager.setMessageRetention(nostrGroupId, 86_400uL) + assertEquals(86_400L, f.manager.retentionSeconds(nostrGroupId)) + + val late = f.manager.buildTextMessage(nostrGroupId, "a day") + + val expiries = f.manager.messageExpiries(nostrGroupId) + assertEquals(early.innerEvent.createdAt + 60, expiries[early.innerEvent.id]) + assertEquals(late.innerEvent.createdAt + 86_400, expiries[late.innerEvent.id]) + } + + @Test + fun `setMessageRetention with zero turns disappearing messages off`() = + runBlocking { + // Removal is equivalent to zero, and zero means disabled — so a + // message sent after the change carries no expiry at all rather + // than one that fires immediately. + val f = Fixture() + f.manager.createCurrentProfileGroup( + nostrGroupId = nostrGroupId, + relays = listOf("wss://relay.invalid"), + retention = MessageRetentionV1(60uL), + ) + f.manager.setMessageRetention(nostrGroupId, 0uL) + assertEquals(0L, f.manager.retentionSeconds(nostrGroupId)) + + val sent = f.manager.buildTextMessage(nostrGroupId, "kept") + assertNull(f.manager.messageExpiries(nostrGroupId)[sent.innerEvent.id]) + assertTrue(f.manager.pruneExpiredMessages(nostrGroupId, sent.innerEvent.createdAt + 86_400).isEmpty()) + } + @Test fun `a message delivered under an older epoch keeps that epoch's retention`() = runBlocking { diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt index ef9376e760..3684b248c2 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/mls/group/MlsGroupManager.kt @@ -20,8 +20,11 @@ */ package com.vitorpamplona.quartz.marmot.mls.group +import com.vitorpamplona.quartz.marmot.appComponents.AdminPolicyV1 +import com.vitorpamplona.quartz.marmot.appComponents.GroupLifecycleV1 import com.vitorpamplona.quartz.marmot.mls.codec.TlsReader import com.vitorpamplona.quartz.marmot.mls.codec.TlsWriter +import com.vitorpamplona.quartz.marmot.mls.components.ComponentsList import com.vitorpamplona.quartz.marmot.mls.crypto.MlsCryptoProvider import com.vitorpamplona.quartz.marmot.mls.framing.PublicMessage import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupManager.Companion.EPOCH_RETENTION_WINDOW @@ -486,6 +489,73 @@ class MlsGroupManager( } } + /** + * Stage the enablement Commit that makes `marmot.group.lifecycle.v1` + * (`0x800c`) required, per `app-components/group-lifecycle-v1.md` + * ("Enablement for existing groups"). + * + * One Commit that adds the `active` state when it is absent and adds + * `0x800c` to the required `app_components` list, and carries nothing else + * — a peer validates the enablement shape and rejects a Commit that folds + * unrelated proposals into it. Enablement does not disband the group. + * + * A group that already requires the component needs no enablement; callers + * check [MarmotGroupState.requires] first rather than committing a no-op + * epoch. + */ + suspend fun stageEnableDisbanding(nostrGroupId: HexKey): StagedCommit { + requireAdminForExtensionChange(requireGroup(nostrGroupId)) + return stage(nostrGroupId) { clone -> + val dictionary = clone.appDataDictionary() + val required = ComponentsList.supportedOrRequired(dictionary).toMutableSet() + required.add(GroupLifecycleV1.COMPONENT_ID) + clone.proposeAppDataUpdate(ComponentsList.APP_COMPONENTS_ID, ComponentsList.encode(required)) + if (dictionary[GroupLifecycleV1.COMPONENT_ID] == null) { + clone.proposeAppDataUpdate(GroupLifecycleV1.COMPONENT_ID, GroupLifecycleV1.ACTIVE.encode()) + } + clone.commit() + } + } + + /** + * Stage the terminal disband Commit, in the exact shape + * `app-components/group-lifecycle-v1.md` ("Disband update and Commit + * shape") requires: + * + * - exactly one lifecycle update, to `disbanded`; + * - exactly one admin-policy replacement naming ONLY the committer's + * account — carried even when the committer was already the sole admin; + * - a Remove for every candidate-parent leaf except the committing leaf, + * including the committer's own other devices; and + * - nothing else, all inline. + * + * A peer validates the whole set, so a Commit that carries only the + * lifecycle update — which is what this used to stage — is rejected + * outright as an unsupported lifecycle transition. The group would stay + * live for every other member while reading as ended here, which is the + * one outcome a terminal state must never produce. + * + * A single-leaf group therefore still produces a valid disband Commit, + * with no Remove proposals at all. + */ + suspend fun stageDisband(nostrGroupId: HexKey): StagedCommit { + requireAdminForExtensionChange(requireGroup(nostrGroupId)) + return stage(nostrGroupId) { clone -> + val committer = + clone.memberIdentity(clone.leafIndex) + ?: throw IllegalStateException("Group $nostrGroupId has no identity for the local leaf") + clone.proposeAppDataUpdate(GroupLifecycleV1.COMPONENT_ID, GroupLifecycleV1.DISBANDED.encode()) + clone.proposeAppDataUpdate(AdminPolicyV1.COMPONENT_ID, AdminPolicyV1(listOf(committer)).encode()) + // Every other leaf, not every other ACCOUNT: the spec removes the + // committer's own remaining devices too, so the final tree holds + // the one committing leaf and nothing else. + for ((leafIndex, _) in clone.members()) { + if (leafIndex != clone.leafIndex) clone.proposeRemove(leafIndex) + } + clone.commit() + } + } + /** * Stage a peer's standalone proposal and PERSIST the group. * From 94a51efa6991d1bd0416854760c181e82ef6d760 Mon Sep 17 00:00:00 2001 From: Claude Date: Thu, 10 Sep 2026 23:41:13 +0000 Subject: [PATCH 73/79] fix(strings): drop the Android-only apostrophe escape from a Compose string `lint` fails on the branch: `compose_escaping_check` flags one `\'` in the Compose resource catalog. Android's parser resolves that escape; Compose's does not, so the string rendered with a literal backslash in it. Repaired with the repo's own tool, as the check instructs: python3 tools/strings-migrate/fix_escapes.py --no-unwrap-quotes \ commons/src/commonMain/composeResources `marmot_retention_footer` was the only entry affected. Both lint hooks pass now, which unblocks the five jobs the workflow gates behind them. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- commons/src/commonMain/composeResources/values/strings.xml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/commons/src/commonMain/composeResources/values/strings.xml b/commons/src/commonMain/composeResources/values/strings.xml index c9d1757284..3f149f3117 100644 --- a/commons/src/commonMain/composeResources/values/strings.xml +++ b/commons/src/commonMain/composeResources/values/strings.xml @@ -2637,7 +2637,7 @@ 1 day 1 week Messages disappear after %1$s - Messages are deleted from every member\'s device after this long. It cannot be changed later. + Messages are deleted from every member's device after this long. It cannot be changed later. Disband group Disband "%1$s" for everyone? The conversation ends for every member and cannot be reopened — a new group would have to be created. Disband From 809983219dacb3411457ccc960e668e82018a0b4 Mon Sep 17 00:00:00 2001 From: Claude Date: Fri, 11 Sep 2026 01:02:37 +0000 Subject: [PATCH 74/79] fix(marmot): terminalize a disband on selection, and bump the MDK pin to 0.9.21 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit **The disband was terminalizing on application.** `group-lifecycle-v1.md` ("Convergence and realization") says a valid disband Commit is never terminalized through ordinary linear advancement: admitting one moves the lifecycle to `Recovering` EVEN WITH NO DIVERGENT EDGE, and only a SELECTED disband Commit moves it to `Disbanded`. We went straight to `Disbanded` in `recordApplied`, so a disband that lost a branch race had already destroyed the group locally — and `Disbanded` is absorbing, so that client stops processing group traffic and can never learn the branch it lost was the one everyone else kept. Most of the machinery for this was already written and never wired: `ConvergencePass.markDisbandCandidateAdmitted`, `isRecovery`, and `LocalOutboundGate.DISBANDING` all existed with no callers outside one unit test. - `recordApplied` now admits the disband for selection instead of terminalizing; `settle` stays the only path to `Disbanded`. - The pass opens WITHOUT `markForkDetected` — the spec is explicit that the forced transition does not assert a fork. - `settleUncontested` resolves a pass with no divergent material. Every pass used to be opened BY a divergent commit, so `freezeInputs` could assume one existed; with none it returns null and `settle` bailed WITHOUT clearing the pass, leaving it open forever and spinning every caller polling for settlement. A no-fork disband is exactly that shape. **The request is now durable.** The `Disbanding` gate goes up first and is persisted (gate storage added to the obligation store as default methods, so existing stores keep compiling), because it has to outlive a publish no relay acknowledged, a crash, a restart and a losing branch. An unacknowledged publish no longer throws the intent away, and `requireOutboundAllowed` honours the gate, so a group with a pending disband refuses new messages instead of carrying on as if nothing had been asked. **Regeneration is bounded to one attempt per epoch.** `resolveDisbandRequest` runs at settlement and regenerates against the selected state when an active branch won — but regenerating opens a fresh pass, and settling that pass calls back in, so without the bound the two spin against each other forever. (MDK bounds the same loop with `DisbandRequest.last_prepared_epoch`.) Waiting for a new epoch is also right on the merits: a commit authenticating against the same parent that just lost would lose again. **MDK pin → 0.9.21 (`fdd398a8`).** The two shipping apps have diverged — android is on 0.9.21, ios still on 0.9.20 — so the comment claiming they agree was false. The rule is now written down: take the newer, because that is where new validation lands and a client satisfying it satisfies the older one. Also renames three shared-source test functions that contained a comma. Kotlin/Native rejects those outright, which is why `test-quartz-linux-native` and `test-quartz-ios` failed while every JVM run passed — the pre-push hook runs JVM tasks only, with the native ones disabled on this host. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- cli/tests/marmot/setup.sh | 19 +- .../amethyst/commons/marmot/MarmotManager.kt | 194 ++++++++++++++++-- .../commons/model/MarmotEditOverlayTest.kt | 2 +- .../commons/marmot/MarmotDisbandTest.kt | 137 ++++++++++++- .../protocolCore/MarmotConvergenceEngine.kt | 80 +++++++- .../marmot/protocolCore/MarmotPublishGate.kt | 82 +++++++- .../appEvents/MarmotSystemRowDiffTest.kt | 4 +- 7 files changed, 476 insertions(+), 42 deletions(-) diff --git a/cli/tests/marmot/setup.sh b/cli/tests/marmot/setup.sh index ac116d541d..1bf5e32db4 100644 --- a/cli/tests/marmot/setup.sh +++ b/cli/tests/marmot/setup.sh @@ -63,13 +63,22 @@ preflight() { # Both White Noise clients vendor an immutable MarmotKit artifact and name # its `mdk-sha` in a lockfile — whitenoise-android's # `app/src/main/marmotkit/MARMOT_VERSION` and whitenoise-ios's - # `Packages/MarmotKit/MARMOT_VERSION` currently agree on this one. Testing - # against master answers "are we compatible with tip"; testing against this - # answers "are we compatible with what users are running", which is the - # question the harness exists to answer. + # `Packages/MarmotKit/MARMOT_VERSION`. Testing against master answers "are we + # compatible with tip"; testing against this answers "are we compatible with + # what users are running", which is the question the harness exists to answer. + # + # THE TWO APPS NO LONGER AGREE, and the rule for that is: take the newer. + # As of 2026-09-10 android is on 0.9.21 (`fdd398a8`) and ios is still on + # 0.9.20 (`2f44f6b6`) — android syncs its bindings on its own cadence and got + # there first. The newer one is where new validation lands, so it is where + # drift shows up first; a client that satisfies 0.9.21 satisfies 0.9.20, + # since every 0.9.20 rule is still in 0.9.21. Pinning to the laggard would + # test the subset and call it coverage. # # Bump it deliberately, by reading those lockfiles again — not by drifting. - MDK_PIN="${MDK_PIN:-2f44f6b65a19f8818644ccd7027618ba91450c33}" + # If they agree again, that is the value; if they disagree, take the newer + # and say so here. + MDK_PIN="${MDK_PIN:-fdd398a80f1626f1713787cebe416f7890b5b204}" if [[ "$(git -C "$WN_REPO" rev-parse HEAD 2>/dev/null)" != "$MDK_PIN" ]]; then if [[ "$NO_BUILD" -eq 1 ]]; then info "mdk is not at the pinned $MDK_PIN and --no-build set — testing whatever is checked out" diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 7d5cddd876..30c7dc3555 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -1043,10 +1043,16 @@ class MarmotManager( private suspend fun commitAndPublish( nostrGroupId: HexKey, relays: List, + /** + * The one gate this commit is allowed to pass. Only the disband path + * uses it, and only for its own `Disbanding` gate — the gate exists to + * carry that request, so it must not block it. + */ + ignoringGate: LocalOutboundGate? = null, stage: suspend () -> MlsGroupManager.StagedCommit, ): CommitPublication { - requireOutboundAllowed(nostrGroupId, "commit a group-state change") - check(publishGate.canPrepareLocalCommit(nostrGroupId)) { + requireOutboundAllowed(nostrGroupId, "commit a group-state change", ignoringGate) + check(publishGate.canPrepareLocalCommit(nostrGroupId, ignoringGate)) { "Group $nostrGroupId cannot prepare a local commit " + "(lifecycle=${publishGate.lifecycle(nostrGroupId)}, gate=${publishGate.outboundGate(nostrGroupId)})" } @@ -1133,6 +1139,17 @@ class MarmotManager( "convergence settled group=${resolution.groupId.take(8)}… " + "epoch=${resolution.canonicalEpoch} rewound=${resolution.rewound}" } + // Settlement is the only moment a pending disband can be + // decided: the branch is chosen, so the request has either won, + // lost and needs regenerating, or become impossible. Doing it + // here is what makes the request survive a losing branch + // instead of being dropped with the pass. + val outcome = resolveDisbandRequest(resolution.groupId) + if (outcome != DisbandResolution.NOT_REQUESTED) { + Log.d("MarmotManager") { + "disband request for ${resolution.groupId.take(8)}… settled as $outcome" + } + } } } } @@ -1204,6 +1221,7 @@ class MarmotManager( private suspend fun requireOutboundAllowed( nostrGroupId: HexKey, what: String, + ignoringGate: LocalOutboundGate? = null, ) { when (val state = lifecycle(nostrGroupId)) { GroupLifecycleState.DISBANDED -> @@ -1216,6 +1234,29 @@ class MarmotManager( else -> Log.d("MarmotManager") { "$what allowed for ${nostrGroupId.take(8)}… in $state" } } + + // A durable gate blocks outbound work without being a lifecycle state: + // the member is still in the tree, the group is not terminal, and yet + // nothing new may be sent. `Disbanding` is the one that matters here — + // it survives a publish no relay took, so a group whose ending is still + // pending must not accept messages in the meantime, which is exactly + // the window where a member would otherwise keep talking into a + // conversation an admin has already ended. + val gate = publishGate.outboundGate(nostrGroupId) + if (gate != null && gate != ignoringGate && gate.blocksOutbound) { + throw IllegalStateException( + when (gate) { + LocalOutboundGate.DISBANDING -> + "Group $nostrGroupId is being disbanded; cannot $what until that resolves" + + LocalOutboundGate.LEAVING -> + "You are leaving group $nostrGroupId; cannot $what" + + LocalOutboundGate.REMOVED -> + "You are no longer a member of group $nostrGroupId; cannot $what" + }, + ) + } } /** @@ -1921,7 +1962,16 @@ class MarmotManager( // requireOutboundAllowed also refuses an Unrecoverable group, which is // the point: disbanding from state we do not trust would publish a // terminal commit off a fork. - requireOutboundAllowed(nostrGroupId, "disband the group") + requireOutboundAllowed(nostrGroupId, "disband the group", ignoringGate = LocalOutboundGate.DISBANDING) + + // The `Disbanding` gate goes up FIRST and durably. The request is the + // irreversible thing a human authorized, and it has to outlive + // everything that can go wrong after this line: a publish no relay + // acknowledges, a crash, a restart, and a branch race this commit + // loses. Raising it afterwards would leave the one window where a + // crash loses the intent entirely and the next start offers the group + // as ordinarily live. + publishGate.raiseGate(nostrGroupId, LocalOutboundGate.DISBANDING) // The disband Commit is only valid when `0x800c` is ALREADY required in // the candidate parent, so a group that predates the component needs @@ -1929,27 +1979,143 @@ class MarmotManager( // creates requires it from epoch 0, so this is the older-group and // other-implementation path, not the common one. if (groupState(nostrGroupId)?.requires(GroupLifecycleV1.COMPONENT_ID) != true) { - val enablement = commitAndPublish(nostrGroupId, relays) { groupManager.stageEnableDisbanding(nostrGroupId) } + val enablement = + commitAndPublish(nostrGroupId, relays, ignoringGate = LocalOutboundGate.DISBANDING) { + groupManager.stageEnableDisbanding(nostrGroupId) + } check(enablement.confirmed) { "Could not enable disbanding on group $nostrGroupId: no relay acknowledged the enablement " + "commit, so the group is unchanged and still live" } } - val publication = commitAndPublish(nostrGroupId, relays) { groupManager.stageDisband(nostrGroupId) } - // Every other setter is content to leave an unacknowledged commit as a - // retryable obligation and say nothing, because a later retry lands the - // same state. This one cannot: the caller is about to tell a human the - // conversation is over, and a group that is still live for everyone - // else must not be reported as ended. The obligation IS still queued — - // the message says so — but the answer to "did it happen" is no. - check(publication.confirmed) { - "Disband of group $nostrGroupId reached no relay; it stays queued as a pending " + - "publish and the group is still live until one acknowledges it" + val publication = + commitAndPublish(nostrGroupId, relays, ignoringGate = LocalOutboundGate.DISBANDING) { + groupManager.stageDisband(nostrGroupId) + } + // An unacknowledged publish is NOT a failed request any more. The + // commit stays a retryable obligation and the gate keeps the request + // alive across restarts, so this reports what happened instead of + // throwing the intent away — the caller reads [isDisbanding] and + // [lifecycle] to tell "ended" from "ending". + if (!publication.confirmed) { + Log.w("MarmotManager") { + "disbandGroup($nostrGroupId): no relay acknowledged the commit — the request stays " + + "durable behind the Disbanding gate and retries with the obligation" + } } return publication.event } + /** + * The epoch each pending disband request was last prepared against, so a + * regeneration happens at most once per epoch. See [resolveDisbandRequest]. + */ + private val disbandPreparedEpoch = mutableMapOf() + + /** True while an irreversible disband request for [nostrGroupId] is unresolved. */ + suspend fun isDisbanding(nostrGroupId: HexKey): Boolean = publishGate.outboundGate(nostrGroupId) == LocalOutboundGate.DISBANDING + + /** + * Resolve a pending disband request against the branch convergence just + * selected. + * + * Three outcomes, and the middle one is why this exists: + * + * - the selected branch carries the disband → the request succeeded. The + * gate comes down; `Disbanded` is already set by the engine, and it is + * absorbing, so nothing else is needed. + * - an ACTIVE branch was selected → our Commit lost. The spec says an + * authorized client regenerates it against the selected state, which is + * what this does; the gate stays up meanwhile, so the group is not + * offered as ordinarily live between attempts. + * - we are no longer an admin or no longer a member → the request has + * become impossible. It ends as a local failure with the gate cleared, + * rather than retrying forever against a group that will never accept it. + * + * "If any valid disband branch is selected, the request succeeds regardless + * of which admin authored the selected Commit" — so this deliberately reads + * the SELECTED STATE rather than tracking whether our own bytes won. + */ + suspend fun resolveDisbandRequest(nostrGroupId: HexKey): DisbandResolution { + if (!isDisbanding(nostrGroupId)) return DisbandResolution.NOT_REQUESTED + + if (groupManager.getGroup(nostrGroupId)?.currentGroupState()?.isDisbanded == true) { + publishGate.clearGate(nostrGroupId) + disbandPreparedEpoch.remove(nostrGroupId) + return DisbandResolution.DISBANDED + } + + val view = groupView(nostrGroupId) + if (view == null || signer.pubKey !in view.adminPubkeys) { + // Not an error worth throwing from a settlement loop: the group + // outlived the requester's authority over it, which is a real + // outcome the caller has to surface rather than retry. + publishGate.clearGate(nostrGroupId) + disbandPreparedEpoch.remove(nostrGroupId) + Log.w("MarmotManager") { + "disband request for $nostrGroupId is impossible: no longer an admin or no longer a member" + } + return DisbandResolution.IMPOSSIBLE + } + + // Still pending and still authorized: regenerate against the selected + // state. A commit still in flight is left alone — republishing the same + // epoch twice is the fork this gate exists to prevent. + // + // The predicate is the PUBLISH gate's, deliberately, not [lifecycle]'s. + // A group that has just settled a pass still reads `Recovering` from + // the convergence engine — nothing resets that to `Stable` when a pass + // ends — so gating on the reported lifecycle would mean never + // regenerating anything, which is the whole feature. What actually + // decides whether a new commit may be prepared is an unresolved publish + // obligation, and that is what this asks about. + if (!publishGate.canPrepareLocalCommit(nostrGroupId, LocalOutboundGate.DISBANDING)) { + return DisbandResolution.PENDING + } + + // ONE attempt per epoch. Regenerating opens a fresh convergence pass, + // and settling that pass calls back here — so without this the two + // spin against each other forever: settle, regenerate, settle, + // regenerate, with the group's epoch stuck wherever the competing + // branch left it. (MDK bounds the same loop the same way, with + // `DisbandRequest.last_prepared_epoch`.) + // + // Waiting for a NEW epoch is also the right trigger on its merits: a + // regeneration that would authenticate against the same parent as the + // attempt that just lost is the same commit, and it would lose again. + val epoch = currentEpoch(nostrGroupId) + if (epoch != null && disbandPreparedEpoch[nostrGroupId] == epoch) return DisbandResolution.PENDING + if (epoch != null) disbandPreparedEpoch[nostrGroupId] = epoch + + return try { + commitAndPublish( + nostrGroupId, + groupRelays(nostrGroupId), + ignoringGate = LocalOutboundGate.DISBANDING, + ) { groupManager.stageDisband(nostrGroupId) } + DisbandResolution.PENDING + } catch (e: Exception) { + Log.w("MarmotManager", "could not regenerate the disband commit for $nostrGroupId", e) + DisbandResolution.PENDING + } + } + + /** What [resolveDisbandRequest] concluded. */ + enum class DisbandResolution { + /** No disband request is pending for this group. */ + NOT_REQUESTED, + + /** A disband branch was selected. The group is terminal. */ + DISBANDED, + + /** Still unresolved — regenerated, in flight, or waiting on a pass. */ + PENDING, + + /** The requester is no longer an admin or no longer a member. */ + IMPOSSIBLE, + } + /** * Set or clear the group avatar, writing to whichever carrier the group uses. * diff --git a/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/model/MarmotEditOverlayTest.kt b/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/model/MarmotEditOverlayTest.kt index a08737f820..f9d9f9af15 100644 --- a/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/model/MarmotEditOverlayTest.kt +++ b/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/model/MarmotEditOverlayTest.kt @@ -102,7 +102,7 @@ class MarmotEditOverlayTest { } @Test - fun `a same-second pair resolves by event id, identically for every reader`() { + fun `a same-second pair resolves by event id identically for every reader`() { // Two devices of one account can stamp the same second. Without a // deterministic tie-break two readers would render different text for // the same message forever, and neither would be wrong. diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt index c6be35f720..b1b651f63b 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt @@ -23,12 +23,14 @@ package com.vitorpamplona.amethyst.commons.marmot import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.protocolCore.GroupLifecycleState +import com.vitorpamplona.quartz.marmot.protocolCore.InMemoryPublishObligationStore import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal import kotlinx.coroutines.runBlocking import kotlin.test.Test import kotlin.test.assertEquals import kotlin.test.assertFailsWith +import kotlin.test.assertFalse import kotlin.test.assertTrue /** @@ -76,14 +78,25 @@ class MarmotDisbandTest { f.manager.disbandGroup(nostrGroupId) + // The Commit applied, so the group's own state says disbanded — + // but the LIFECYCLE does not, yet. `group-lifecycle-v1.md` is + // explicit that a disband is never terminalized through ordinary + // linear advancement: admitting it forces `Recovering` even with no + // fork, and only a SELECTED disband Commit moves it to `Disbanded`. assertTrue(f.manager.groupState(nostrGroupId)?.isDisbanded == true) - assertEquals(GroupLifecycleState.DISBANDED, f.manager.lifecycle(nostrGroupId)) + assertEquals(GroupLifecycleState.RECOVERING, f.manager.lifecycle(nostrGroupId)) + assertTrue(f.manager.isDisbanding(nostrGroupId)) - // The whole point of the state: outbound work stops. + // Outbound work stops immediately all the same — that is the + // `Disbanding` gate, not the lifecycle. assertFailsWith { f.manager.buildTextMessage(nostrGroupId, "anyone still here?") } - Unit + + // Settle the pass and the group terminalizes for real. + f.manager.driveConvergenceToSettlement(pollMs = 1) + assertEquals(GroupLifecycleState.DISBANDED, f.manager.lifecycle(nostrGroupId)) + assertFalse(f.manager.isDisbanding(nostrGroupId), "a resolved request lowers its gate") } @Test @@ -144,6 +157,12 @@ class MarmotDisbandTest { val commit = alice.manager.disbandGroup(nostrGroupId) bob.manager.ingest(commit.signedEvent) + // Same rule on the receiving side: admitted, then selected. A + // witness that terminalized on arrival could not tell a disband + // that won from one that lost a race it never saw. + assertEquals(GroupLifecycleState.RECOVERING, bob.manager.lifecycle(nostrGroupId)) + bob.manager.driveConvergenceToSettlement(pollMs = 1) + assertEquals(GroupLifecycleState.DISBANDED, bob.manager.lifecycle(nostrGroupId)) assertFailsWith { bob.manager.buildTextMessage(nostrGroupId, "still here?") @@ -198,15 +217,117 @@ class MarmotDisbandTest { val f = Fixture(publisher = MarmotPublisher { _, _ -> false }) f.createCurrentProfile() - val thrown = assertFailsWith { f.manager.disbandGroup(nostrGroupId) } - assertTrue(thrown.message.orEmpty().contains("reached no relay")) + f.manager.disbandGroup(nostrGroupId) assertTrue(f.manager.groupState(nostrGroupId)?.isDisbanded != true) assertTrue(f.manager.lifecycle(nostrGroupId) != GroupLifecycleState.DISBANDED) - // Still a working group: nothing about a failed disband may leak - // into the states that stop outbound work. - f.manager.buildTextMessage(nostrGroupId, "still here") + // What a failed publish must NOT do is throw the request away. The + // component calls the gate durable precisely so it "survives + // publication failure", and an admin who ended a conversation does + // not need to be told to click again because a relay blinked. + assertTrue(f.manager.isDisbanding(nostrGroupId)) + + // And nothing may be sent while it is unresolved. The group is not + // terminal — it may yet come back if the request turns out to be + // impossible — but it is no longer an ordinary live conversation. + assertFailsWith { + f.manager.buildTextMessage(nostrGroupId, "still here") + } + Unit + } + + @Test + fun `a pending disband request outlives a restart`() = + runBlocking { + // The gate is durable or it is nothing: the crash that happens + // between "the admin pressed disband" and "a relay took the commit" + // is exactly the case it exists for, and an in-memory flag loses + // the intent there and offers the group as live on the next start. + val store = SnapshotStateStore() + val obligations = InMemoryPublishObligationStore() + val first = + MarmotManager( + NostrSignerInternal(KeyPair()), + store, + SnapshotMessageStore(), + SnapshotBundleStore(), + publisher = MarmotPublisher { _, _ -> false }, + publishObligationStore = obligations, + ) + first.createCurrentProfileGroup( + nostrGroupId = nostrGroupId, + relays = listOf("wss://relay.invalid"), + profile = GroupProfileV1("doomed", ""), + ) + first.disbandGroup(nostrGroupId) + assertTrue(first.isDisbanding(nostrGroupId)) + + // A fresh manager over the same stores is what a restart looks like. + val restarted = + MarmotManager( + first.signer, + store, + SnapshotMessageStore(), + SnapshotBundleStore(), + publisher = ACCEPTING_RELAY, + publishObligationStore = obligations, + ) + restarted.restoreAll() + + assertTrue(restarted.isDisbanding(nostrGroupId), "the request must survive the restart") + assertFailsWith { + restarted.buildTextMessage(nostrGroupId, "did it end?") + } + Unit + } + + @Test + fun `a disband that loses a branch race is regenerated, not dropped`() = + runBlocking { + // The case terminalizing-on-application could never survive. Alice + // disbands; the branch that wins is an ACTIVE one from bob, so her + // Commit loses. The spec says an authorized client regenerates it + // against the selected state — and the only reason she still can is + // that she never went terminal, because a `Disbanded` client stops + // processing group traffic and could not have learned she lost. + val alice = Fixture() + val bob = Fixture() + alice.createCurrentProfile() + + val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) + val (_, welcome) = alice.manager.addMember(nostrGroupId, kp, emptyList()) + bob.manager.ingest(welcome!!.giftWrapEvent) + + // Bob is promoted so his own commit is one alice will accept. + alice.manager + .setGroupAdmins(nostrGroupId, listOf(alice.signer.pubKey, bob.signer.pubKey)) + .let { bob.manager.ingest(it.signedEvent) } + + // Both commit off the same epoch: alice's disband and bob's rename. + val disband = alice.manager.disbandGroup(nostrGroupId) + assertTrue(alice.manager.isDisbanding(nostrGroupId)) + val rename = bob.manager.setGroupProfile(nostrGroupId, "still going", "") + + // Alice sees bob's competing commit and settles the pass. + alice.manager.ingest(rename.signedEvent) + alice.manager.driveConvergenceToSettlement(pollMs = 1) + + // Whatever branch won, the REQUEST is still alive: either it was + // the disband (terminal, gate down) or it was not (gate still up, + // regenerated against the selected state). What must never happen + // is a group that is live for bob and terminal for alice. + val lifecycle = alice.manager.lifecycle(nostrGroupId) + if (lifecycle == GroupLifecycleState.DISBANDED) { + assertFalse(alice.manager.isDisbanding(nostrGroupId)) + } else { + assertTrue( + alice.manager.isDisbanding(nostrGroupId), + "a disband that lost its branch must stay pending, not vanish", + ) + } + // Either way the commit alice published is the spec's shape. + assertTrue(disband.signedEvent.id.isNotEmpty()) Unit } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt index 6965b53086..c74b9470af 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt @@ -228,7 +228,41 @@ class MarmotConvergenceEngine( } ctx.canonicalCommits.addLast(candidateOf(commitBytes, sourceEpoch)) trim(ctx) - terminalizeIfDisbanded(groupId, ctx) + admitDisbandForSelection(groupId, ctx) + } + + /** + * A disband Commit reached canonical state — open a pass and wait for + * selection instead of terminalizing here. + * + * `group-lifecycle-v1.md` ("Convergence and realization"): a valid disband + * Commit is never terminalized through ordinary linear advancement. + * Admitting one moves the lifecycle to `Recovering` EVEN WHEN NO DIVERGENT + * EDGE EXISTS, and only a SELECTED disband Commit moves it on to + * `Disbanded`. + * + * The distinction is the whole safety property. Terminalizing on + * application means a disband that loses a branch race has already + * destroyed this client's group: `Disbanded` is absorbing, so it stops + * processing group traffic and can never learn that the branch it lost was + * the one everyone else kept. Waiting for selection costs one bounded pass + * and makes the outcome the group's rather than ours. + * + * The pass is opened WITHOUT [ConvergencePass.markForkDetected] — the spec + * is explicit that this forced transition does not assert that a fork + * exists — so a no-fork disband settles on quiescence with one branch and + * terminalizes, while a real race is resolved on its merits with no special + * ordering priority for the disband. + */ + private fun admitDisbandForSelection( + groupId: HexKey, + ctx: GroupContext, + ) { + if (ctx.lifecycle == GroupLifecycleState.DISBANDED) return + if (groupManager.getGroup(groupId)?.currentGroupState()?.isDisbanded != true) return + val pass = ctx.pass ?: openPass(groupId, ctx, forkDetected = false) + pass.markDisbandCandidateAdmitted() + ctx.lifecycle = pass.lifecycleWhileRunning(ctx.lifecycle) } /** @@ -459,6 +493,8 @@ class MarmotConvergenceEngine( * WHEN the batch is resolved, never what the frozen batch resolves to. */ suspend fun settle(groupId: HexKey): ConvergenceResolution? { + settleUncontested(groupId)?.let { return it } + // Graph construction restores groups and replays MLS bytes, which is // slow enough that holding the engine mutex across it would stall every // other group. Snapshot the inputs under the lock, resolve outside it, @@ -539,6 +575,41 @@ class MarmotConvergenceEngine( } } + /** + * Resolve a pass that has no divergent material at all. + * + * Every pass used to be opened BY a divergent commit, so this shape could + * not occur: [freezeInputs] needs a retained state some divergent candidate + * authenticates against, and with nothing divergent there is no such index, + * so it returns null — and a null there means `settle` returns without + * clearing `ctx.pass`. The pass then stays open forever and every caller + * polling for settlement spins. + * + * A disband opens exactly that shape: the spec has it open a bounded pass + * "even when no divergent edge exists", so that a competitor arriving + * inside the window is still considered. When the window closes with none, + * selection is trivial — the canonical branch is the only branch — and the + * pass resolves with nothing rewound. + */ + private suspend fun settleUncontested(groupId: HexKey): ConvergenceResolution? = + mutex.withLock { + val ctx = contexts[groupId] ?: return@withLock null + val pass = ctx.pass ?: return@withLock null + if (ctx.divergent.isNotEmpty()) return@withLock null + + pass.freeze() + ctx.pass = null + terminalizeIfDisbanded(groupId, ctx) + ConvergenceResolution( + groupId = groupId, + status = ConvergenceStatus.SETTLED, + lifecycle = ctx.lifecycle, + canonicalEpoch = groupManager.getGroup(groupId)?.epoch ?: 0L, + rewound = false, + outcomes = emptyList(), + ) + } + /** Forget everything about [groupId] — used when leaving or deleting a group. */ suspend fun forget(groupId: HexKey) = mutex.withLock { @@ -650,13 +721,16 @@ class MarmotConvergenceEngine( private fun openPass( groupId: HexKey, ctx: GroupContext, + forkDetected: Boolean = true, ): ConvergencePass { val baseEpoch = groupManager.getGroup(groupId)?.epoch ?: 0L val pass = ConvergencePass(baseEpoch, policy, monotonicNowMs) // A divergent commit that authenticates against a retained state IS an // eligible divergent edge, which is exactly what makes this a recovery - // rather than a linear pass. - pass.markForkDetected() + // rather than a linear pass. A disband opens a pass without one: it is + // a recovery because the spec says terminalization waits for selection, + // not because anything forked. + if (forkDetected) pass.markForkDetected() ctx.pass = pass ctx.lifecycle = pass.lifecycleWhileRunning(ctx.lifecycle) return pass diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt index dfdcee4033..257b4be716 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt @@ -87,7 +87,7 @@ class MarmotPublishObligation( } } -/** Durable storage for unresolved publish obligations. */ +/** Durable storage for unresolved publish obligations and outbound gates. */ interface MarmotPublishObligationStore { suspend fun save( obligationId: HexKey, @@ -97,11 +97,34 @@ interface MarmotPublishObligationStore { suspend fun delete(obligationId: HexKey) suspend fun loadAll(): List + + /** + * Persist an outbound gate for one group. + * + * Gates are durable by definition — `Disbanding` "survives publication + * failure, restart, and a losing branch", and `Leaving` and `Removed` are + * one-way until the protocol event that clears them. An implementation + * that does not override these keeps them in memory only, which loses the + * request on restart; that is the pre-existing behaviour, not a new one, + * so it defaults rather than breaking every store. + */ + suspend fun saveGate( + groupId: HexKey, + gate: String, + ) { + } + + suspend fun deleteGate(groupId: HexKey) { + } + + /** Group id to gate name, as written by [saveGate]. */ + suspend fun loadGates(): Map = emptyMap() } /** Non-durable default. A client that uses this loses publish-before-apply across restart. */ class InMemoryPublishObligationStore : MarmotPublishObligationStore { private val entries = LinkedHashMap() + private val gateEntries = LinkedHashMap() override suspend fun save( obligationId: HexKey, @@ -115,6 +138,19 @@ class InMemoryPublishObligationStore : MarmotPublishObligationStore { } override suspend fun loadAll(): List = entries.values.toList() + + override suspend fun saveGate( + groupId: HexKey, + gate: String, + ) { + gateEntries[groupId] = gate + } + + override suspend fun deleteGate(groupId: HexKey) { + gateEntries.remove(groupId) + } + + override suspend fun loadGates(): Map = gateEntries.toMap() } /** Why a publish attempt ended. */ @@ -182,9 +218,16 @@ class MarmotPublishGate( private val gates = mutableMapOf() private val lifecycles = mutableMapOf() - /** Reload unresolved obligations. Call once at startup, after group restore. */ + /** Reload unresolved obligations and outbound gates. Call once at startup, after group restore. */ suspend fun restore() = mutex.withLock { + store.loadGates().forEach { (groupId, name) -> + // An unreadable gate name is dropped rather than guessed at: + // inventing `Removed` for a group we are still in would hide it + // forever, and inventing `Disbanding` would block a group whose + // owner never asked to end it. + LocalOutboundGate.entries.firstOrNull { it.name == name }?.let { gates[groupId] = it } + } store.loadAll().forEach { bytes -> try { val obligation = MarmotPublishObligation.decodeTls(bytes) @@ -214,27 +257,48 @@ class MarmotPublishGate( * Only `Stable` may, and only with no outbound gate: `Leaving`, * `Disbanding` and a realized `Removed` each block all new outbound work. */ - suspend fun canPrepareLocalCommit(groupId: HexKey): Boolean = + suspend fun canPrepareLocalCommit( + groupId: HexKey, + ignoringGate: LocalOutboundGate? = null, + ): Boolean = mutex.withLock { val state = lifecycles[groupId] ?: GroupLifecycleState.STABLE - state.canPrepareLocalCommit && gates[groupId] == null + val gate = gates[groupId] + // [ignoringGate] is for the work the gate itself exists to carry: a + // `Disbanding` group must still be able to prepare — and regenerate + // — the disband Commit, or raising the gate first would block the + // very request that raised it. + state.canPrepareLocalCommit && (gate == null || gate == ignoringGate) } - /** Raise an outbound gate — a sent SelfRemove, a disband request, a realized removal. */ + /** + * Raise an outbound gate — a sent SelfRemove, a disband request, a realized + * removal — and make it durable before returning. + * + * Written before the caller acts on it, for the same reason a publish + * obligation is: a disband request that is only in memory is lost by the + * crash that happens between raising it and publishing the Commit, and the + * next start would offer the group as ordinarily live. + */ suspend fun raiseGate( groupId: HexKey, gate: LocalOutboundGate, - ) = mutex.withLock { - gates[groupId] = gate - Unit + ) { + store.saveGate(groupId, gate.name) + mutex.withLock { + gates[groupId] = gate + Unit + } } /** Clear an outbound gate. Only an authenticated re-join clears `REMOVED`. */ - suspend fun clearGate(groupId: HexKey) = + suspend fun clearGate(groupId: HexKey) { + store.deleteGate(groupId) mutex.withLock { gates.remove(groupId) Unit } + } /** Unresolved obligations for [groupId], oldest first. */ suspend fun pendingFor(groupId: HexKey): List = diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemRowDiffTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemRowDiffTest.kt index 2fb87959ef..c8f9ddf8f1 100644 --- a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemRowDiffTest.kt +++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/marmot/foundation/appEvents/MarmotSystemRowDiffTest.kt @@ -67,7 +67,7 @@ class MarmotSystemRowDiffTest { } @Test - fun `a member who removed themselves left, anyone else was removed`() { + fun `a member who removed themselves left and anyone else was removed`() { // The registry distinguishes these and the only thing that can tell // them apart is whether the committer is the departing account. val before = snapshot(members = setOf(alice, bob)) @@ -79,7 +79,7 @@ class MarmotSystemRowDiffTest { } @Test - fun `admin changes are about the policy, not about presence`() { + fun `admin changes are about the policy and not about presence`() { // Bob is added and promoted in one commit: both rows are true, and a // client that collapsed them would lose who can act in the group. val rows = From 3c65e601dfedc1268645a8484e0e175b9bfa6516 Mon Sep 17 00:00:00 2001 From: Claude Date: Fri, 11 Sep 2026 01:17:23 +0000 Subject: [PATCH 75/79] fix(marmot): wire the disband fix through to Android MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The convergence-based disband landed in `commons` and `quartz` but three things it depends on only exist per front end, and the app had none of them. **Nothing would have carried the pass to settlement.** Terminalization now happens when the convergence pass SETTLES, and the settler is started by inbound traffic that detected a fork — but a disband opens its pass from a local outbound Commit with no fork, so no carrier ever started. On Android the group would have sat in `Recovering` behind its own `Disbanding` gate forever: nothing sendable, never ending. The CLI never showed it because the harness drives settlement explicitly. `disbandGroup` and the regeneration path now start the carrier themselves. **The gate was not durable anywhere real.** Gate storage is defaulted on `MarmotPublishObligationStore` so existing stores keep compiling, and neither `AndroidPublishObligationStore` nor `FilePublishObligationStore` overrode it — so the previous commit's durability claim held only for the in-memory store the test used. Both now persist gates: one file per group beside the obligations. Android writes them unencrypted, unlike an obligation, because the value is one enum name and the filename is a group id the device already stores in the clear — no key material, no message content. `FileStoresGateTest` pins the round trip on the real file store, including that a gate write is not mistaken for an obligation on reload. **The UI announced an ending that may not have happened.** The toast said "Group disbanded" as soon as the call returned, which used to be true because an unacknowledged publish threw. It no longer throws — the request stays durable and pending — so `disbandMarmotGroup` now returns whether the group is terminal, and the screen says "Ending the group" when it is not. Leaving the screen is right either way: the group takes no further outbound work. Verified: quartz 4836, commons 1886, cli 53 green, and the full MDK interop harness is 29/29 at the new 0.9.21 pin with all of this built in — including test 05, whose earlier failure was the loopback relay dropping a websocket before OK rather than anything in 0.9.21. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/model/AccountMarmotActions.kt | 18 +++- .../marmot/AndroidPublishObligationStore.kt | 68 ++++++++++++++ .../ui/screen/loggedIn/AccountViewModel.kt | 7 +- .../marmotGroup/MarmotGroupInfoScreen.kt | 22 ++++- amethyst/src/main/res/values/strings.xml | 1 + .../amethyst/cli/stores/FileStores.kt | 28 ++++++ .../amethyst/cli/FileStoresGateTest.kt | 91 +++++++++++++++++++ .../amethyst/commons/marmot/MarmotManager.kt | 13 +++ 8 files changed, 240 insertions(+), 8 deletions(-) create mode 100644 cli/src/test/kotlin/com/vitorpamplona/amethyst/cli/FileStoresGateTest.kt diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt index 4d0e130029..86361cadd4 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/AccountMarmotActions.kt @@ -28,6 +28,7 @@ import com.vitorpamplona.quartz.marmot.appComponents.MarmotWebUrl import com.vitorpamplona.quartz.marmot.appComponents.MessageRetentionV1 import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageEvent import com.vitorpamplona.quartz.marmot.mip00KeyPackages.KeyPackageFetcher +import com.vitorpamplona.quartz.marmot.protocolCore.GroupLifecycleState import com.vitorpamplona.quartz.nip01Core.core.Event import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl @@ -577,17 +578,28 @@ class AccountMarmotActions( * Deliberately NOT silent on failure the way the other actions here are: a * disband that did not happen must not look like one that did, so the * exception propagates to the caller's error path. + * + * It is no longer terminal the moment it is published, either: the Commit + * is admitted as a convergence candidate and only a SELECTED one moves the + * group to `Disbanded`, so between the two the request sits behind a + * durable `Disbanding` gate. Reporting that distinction is the whole point + * of the return value — announcing "group disbanded" for a request that is + * still pending is the one thing a terminal action must never do. + * + * @return true when the group is terminal now; false when the request is + * durable and unresolved, which is not a failure. */ suspend fun disbandMarmotGroup( nostrGroupId: HexKey, groupRelays: Set, - ) { - val manager = account.marmotManager ?: return - if (!account.isWriteable()) return + ): Boolean { + val manager = account.marmotManager ?: return false + if (!account.isWriteable()) return false manager.disbandGroup(nostrGroupId, groupRelays.toList()) val chatroom = account.marmotGroupList.getOrCreateGroup(nostrGroupId) manager.syncMetadataTo(nostrGroupId, chatroom) + return manager.lifecycle(nostrGroupId) == GroupLifecycleState.DISBANDED } /** diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidPublishObligationStore.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidPublishObligationStore.kt index 02baa30a3d..445e91ee91 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidPublishObligationStore.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/model/marmot/AndroidPublishObligationStore.kt @@ -95,6 +95,74 @@ class AndroidPublishObligationStore( } } + private fun gateDir(): File = File(rootDir, "marmot_gates") + + private fun gateFile(groupId: String) = File(gateDir(), "$groupId.gate") + + /** + * Outbound gates are durable for the same reason obligations are, and the + * `Disbanding` one more than any: the component requires it to survive + * "publication failure, restart, and a losing branch", and Android kills + * apps mid-work routinely. An in-memory gate loses an admin's irreversible + * request to the crash between raising it and a relay taking the Commit, + * and the next launch offers the group as ordinarily live. + * + * Not encrypted, unlike an obligation: the value is one enum name and the + * filename is a group id this device already stores in the clear + * everywhere else. There is no key material and no message content here. + */ + override suspend fun saveGate( + groupId: HexKey, + gate: String, + ) = withContext(Dispatchers.IO) { + mutex.withLock { + val target = gateFile(groupId) + try { + target.parentFile?.mkdirs() + val tmp = File(target.parentFile, "${target.name}.tmp") + tmp.writeBytes(gate.encodeToByteArray()) + if (!tmp.renameTo(target)) { + tmp.copyTo(target, overwrite = true) + if (!tmp.delete()) Log.w(TAG) { "could not delete temp file ${tmp.absolutePath}" } + } + } catch (e: Exception) { + // Same rule as an obligation: failing to record the gate is + // worse than failing to act, because the request is the part + // that cannot be reconstructed. + Log.e(TAG, "saveGate($groupId) FAILED", e) + throw e + } + } + } + + override suspend fun deleteGate(groupId: HexKey) = + withContext(Dispatchers.IO) { + mutex.withLock { + val target = gateFile(groupId) + if (target.exists() && !target.delete()) { + Log.w(TAG) { "could not delete cleared gate ${target.absolutePath}" } + } + Unit + } + } + + override suspend fun loadGates(): Map = + withContext(Dispatchers.IO) { + mutex.withLock { + gateDir() + .listFiles { f -> f.isFile && f.name.endsWith(".gate") } + ?.mapNotNull { file -> + try { + file.name.removeSuffix(".gate") to file.readText().trim() + } catch (e: Exception) { + Log.w(TAG, "could not read gate ${file.absolutePath}", e) + null + } + }?.toMap() + .orEmpty() + } + } + override suspend fun loadAll(): List = withContext(Dispatchers.IO) { mutex.withLock { diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt index 1ae1996e6b..cda7e35f72 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt @@ -2533,10 +2533,13 @@ class AccountViewModel( /** * Disband the group for everyone. Irreversible — the caller is responsible * for confirming with the user before this is reached. + * + * @return true when the group is terminal now, false when the request is + * still pending convergence, which is not a failure. */ - suspend fun disbandMarmotGroup(nostrGroupId: String) { + suspend fun disbandMarmotGroup(nostrGroupId: String): Boolean { val relays = account.marmot.marmotGroupRelays(nostrGroupId) - account.marmot.disbandMarmotGroup(nostrGroupId, relays) + return account.marmot.disbandMarmotGroup(nostrGroupId, relays) } /** Set (or, with a blank string, clear) the group's plain-https avatar link. */ diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt index f5e234e722..bab18ae3dd 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt @@ -507,11 +507,27 @@ fun MarmotGroupInfoScreen( isDisbanding = true scope.launch(Dispatchers.IO) { try { - accountViewModel.disbandMarmotGroup(nostrGroupId) + // Ended, or ending. A disband terminalizes only once + // convergence SELECTS the Commit, so the request can + // still be pending here — and telling someone their + // conversation is over when it may not be is the one + // wrong answer. Either way the group takes no further + // outbound work, so leaving the screen is right. + val ended = accountViewModel.disbandMarmotGroup(nostrGroupId) launch(Dispatchers.Main) { Toast - .makeText(context, stringRes(context, R.string.marmot_group_disbanded_toast), Toast.LENGTH_SHORT) - .show() + .makeText( + context, + stringRes( + context, + if (ended) { + R.string.marmot_group_disbanded_toast + } else { + R.string.marmot_group_disbanding_toast + }, + ), + Toast.LENGTH_SHORT, + ).show() } nav.nav(Route.Message) } catch (e: Exception) { diff --git a/amethyst/src/main/res/values/strings.xml b/amethyst/src/main/res/values/strings.xml index 3d6319a8f5..083066de6a 100644 --- a/amethyst/src/main/res/values/strings.xml +++ b/amethyst/src/main/res/values/strings.xml @@ -2700,6 +2700,7 @@ This group now uses encrypted attachments Could not switch this group to encrypted attachments: %1$s Group disbanded + Ending the group. It finishes once the group agrees. Could not disband the group: %1$s Adding %1$s… Failed to add %1$s: %2$s diff --git a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt index c8cfb68416..2898914350 100644 --- a/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt +++ b/cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/stores/FileStores.kt @@ -312,6 +312,34 @@ class FilePublishObligationStore( ?.sortedBy { it.name } ?.mapNotNull { runCatching { it.readBytes() }.getOrNull() } .orEmpty() + + private fun gateFile(groupId: String) = File(dir, "$groupId.gate") + + /** + * Outbound gates live beside the obligations and are durable for the same + * reason: `Disbanding` must survive "publication failure, restart, and a + * losing branch", and every `amy` verb is its own process — so an + * in-memory gate would not survive even the next command, let alone a + * crash. + */ + override suspend fun saveGate( + groupId: HexKey, + gate: String, + ) { + SecureFileIO.writeBytesAtomic(gateFile(groupId), gate.encodeToByteArray()) + } + + override suspend fun deleteGate(groupId: HexKey) { + gateFile(groupId).deleteOrWarn("FilePublishObligationStore", "outbound gate") + } + + override suspend fun loadGates(): Map = + dir + .listFiles { f -> f.isFile && f.name.endsWith(".gate") } + ?.mapNotNull { file -> + runCatching { file.name.removeSuffix(".gate") to file.readText().trim() }.getOrNull() + }?.toMap() + .orEmpty() } /** diff --git a/cli/src/test/kotlin/com/vitorpamplona/amethyst/cli/FileStoresGateTest.kt b/cli/src/test/kotlin/com/vitorpamplona/amethyst/cli/FileStoresGateTest.kt new file mode 100644 index 0000000000..749e2024b6 --- /dev/null +++ b/cli/src/test/kotlin/com/vitorpamplona/amethyst/cli/FileStoresGateTest.kt @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2025 Vitor Pamplona + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the + * Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.vitorpamplona.amethyst.cli + +import com.vitorpamplona.amethyst.cli.stores.FilePublishObligationStore +import com.vitorpamplona.quartz.marmot.protocolCore.LocalOutboundGate +import kotlinx.coroutines.runBlocking +import org.junit.Rule +import org.junit.Test +import org.junit.rules.TemporaryFolder +import kotlin.test.assertEquals +import kotlin.test.assertTrue + +/** + * Outbound gates have to reach the disk, not just the map. + * + * `LocalOutboundGate.DISBANDING` is required to survive "publication failure, + * restart, and a losing branch". The gate API is defaulted on the store + * interface so existing implementations keep compiling — which means a store + * that does not override it drops every gate silently, and the group comes back + * after a restart offering itself as ordinarily live with an admin's + * irreversible request forgotten. Every `amy` verb is its own process, so + * "survives a restart" is the ordinary case here rather than a crash scenario. + */ +class FileStoresGateTest { + @get:Rule val tmp = TemporaryFolder() + + private val groupA = "a".repeat(64) + private val groupB = "b".repeat(64) + + @Test + fun `a raised gate is readable by the next process`() = + runBlocking { + val dir = tmp.newFolder("obligations") + FilePublishObligationStore(dir).saveGate(groupA, LocalOutboundGate.DISBANDING.name) + + // A different instance over the same directory is what the next + // `amy` invocation actually does. + val reopened = FilePublishObligationStore(dir).loadGates() + assertEquals(mapOf(groupA to LocalOutboundGate.DISBANDING.name), reopened) + } + + @Test + fun `clearing a gate removes it for good`() = + runBlocking { + val dir = tmp.newFolder("obligations") + val store = FilePublishObligationStore(dir) + store.saveGate(groupA, LocalOutboundGate.DISBANDING.name) + store.deleteGate(groupA) + + assertTrue(FilePublishObligationStore(dir).loadGates().isEmpty()) + } + + @Test + fun `gates are per group and do not disturb obligations`() = + runBlocking { + // One file per group and per obligation, in one directory: a gate + // write must not be mistaken for an obligation on reload, or the + // publish gate would try to decode an enum name as a TLS record. + val dir = tmp.newFolder("obligations") + val store = FilePublishObligationStore(dir) + store.save("f".repeat(64), byteArrayOf(1, 2, 3)) + store.saveGate(groupA, LocalOutboundGate.DISBANDING.name) + store.saveGate(groupB, LocalOutboundGate.LEAVING.name) + + val reopened = FilePublishObligationStore(dir) + assertEquals( + mapOf(groupA to LocalOutboundGate.DISBANDING.name, groupB to LocalOutboundGate.LEAVING.name), + reopened.loadGates(), + ) + assertEquals(1, reopened.loadAll().size) + } +} diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index 30c7dc3555..b3cb67e24e 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -2004,6 +2004,16 @@ class MarmotManager( "durable behind the Disbanding gate and retries with the obligation" } } + + // Start the carrier ourselves. Applying this Commit opened a bounded + // convergence pass, and terminalization now happens only when that pass + // SETTLES — but the settler is otherwise started by inbound traffic + // that detected a fork, and this pass has neither. Without this the + // group sits in `Recovering` behind its own `Disbanding` gate + // indefinitely: nothing may be sent to it and it never ends. A front + // end that drives settlement itself (the CLI does) would not notice; + // the app would. + startConvergenceSettler() return publication.event } @@ -2094,6 +2104,9 @@ class MarmotManager( groupRelays(nostrGroupId), ignoringGate = LocalOutboundGate.DISBANDING, ) { groupManager.stageDisband(nostrGroupId) } + // Same reason as in [disbandGroup]: the regenerated Commit opens a + // pass of its own that nothing else would carry to settlement. + startConvergenceSettler() DisbandResolution.PENDING } catch (e: Exception) { Log.w("MarmotManager", "could not regenerate the disband commit for $nostrGroupId", e) From 105d5bd217ac175a012b8a590672cc9f8ce743e1 Mon Sep 17 00:00:00 2001 From: Claude Date: Fri, 11 Sep 2026 02:19:43 +0000 Subject: [PATCH 76/79] fix(marmot,relay): end the recovery, gate the composer, extend a retry's deadline MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Four follow-ups from the disband work. **A settled pass no longer reads as `Recovering` forever.** `settle()` cleared the pass and terminalized a disband but never restored `Stable`, so after any fork the group reported a recovery that had already finished. The publish gate is what actually decides whether a commit may be prepared, so nothing locked up — it was a lie in the reporting, which is worse in its way, since the next reader to gate on it would have found a group that looked permanently stuck. `endRecovery` clears only `Recovering`; `Unrecoverable` is not a pass outcome and `Disbanded` is absorbing. **The composer is disabled when an outbound gate is up.** Sending into a disbanding, leaving or removed group throws behind the gate, and the UI found out by tapping. The gate is mirrored onto `MarmotGroupChatroom` and the chat view replaces the input with the reason. The gate map is guarded by a mutex and the refresh path is not suspending, so `MarmotPublishGate` now publishes an immutable snapshot for non-suspending readers rather than pushing `suspend` up through every caller for one flag. **A retry now outlives the deadline it was issued at.** The transport retry already existed (7e187e39) and was still losing publishes: it shared the caller's original budget, so the retry was issued, the clock ran out, and the publish was reported failed having done the work and thrown the answer away — which is how a healthy loopback relay kept costing the interop harness a message a run to `disconnected before OK`. Issuing a retry now extends the deadline by `TRANSPORT_RETRY_GRACE_MS`. Bounded by construction: only a relay that gave a transport failure earns it, and only as often as the retry budget allows. The new test fails without the change with exactly the harness's error. **The three blocked interop directions are closed, with the reason recorded.** The obvious next idea is to bypass `wn`'s missing verbs through its daemon, and it does not work: `wnd`'s protocol carries `Ping`, `Status`, `Shutdown`, four `*Subscribe` variants and `Execute { cli: Box }` — the same clap tree `wn` parses. A verb missing from `Cli` is unreachable through the socket too, so closing them needs a verb upstream or a driver linked against `marmot-uniffi`/`marmot-c`. Written down in cli/tests/README.md so nobody re-investigates. 10,998 tests green. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../chats/marmotGroup/MarmotGroupChatView.kt | 68 ++++++++++++++++--- amethyst/src/main/res/values/strings.xml | 3 + cli/tests/README.md | 10 +++ .../amethyst/commons/marmot/MarmotManager.kt | 4 ++ .../model/marmotGroups/MarmotGroupChatroom.kt | 13 ++++ .../commons/marmot/MarmotDisbandTest.kt | 23 +++++++ .../protocolCore/MarmotConvergenceEngine.kt | 23 +++++++ .../marmot/protocolCore/MarmotPublishGate.kt | 25 ++++++- .../accessories/NostrClientPublishExt.kt | 32 ++++++++- .../marmot/MarmotConvergenceWiringTest.kt | 31 +++++++++ .../PublishRetriesTransportFailureTest.kt | 39 +++++++++++ 11 files changed, 257 insertions(+), 14 deletions(-) diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt index 831d3b1e07..7d4efc6ded 100644 --- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt +++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatView.kt @@ -21,6 +21,7 @@ package com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup import android.widget.Toast +import androidx.compose.foundation.layout.Arrangement import androidx.compose.foundation.layout.Column import androidx.compose.foundation.layout.Row import androidx.compose.foundation.layout.Spacer @@ -43,7 +44,9 @@ import androidx.compose.ui.Alignment import androidx.compose.ui.Modifier import androidx.compose.ui.graphics.Color import androidx.compose.ui.platform.LocalContext +import androidx.compose.ui.text.style.TextAlign import androidx.compose.ui.unit.dp +import androidx.lifecycle.compose.collectAsStateWithLifecycle import androidx.lifecycle.viewmodel.compose.viewModel import com.vitorpamplona.amethyst.R import com.vitorpamplona.amethyst.commons.resources.Res @@ -72,6 +75,7 @@ import com.vitorpamplona.amethyst.ui.theme.EditFieldModifier import com.vitorpamplona.amethyst.ui.theme.EditFieldTrailingIconModifier import com.vitorpamplona.amethyst.ui.theme.SuggestionListDefaultHeightChat import com.vitorpamplona.amethyst.ui.theme.placeholderText +import com.vitorpamplona.quartz.marmot.protocolCore.LocalOutboundGate import com.vitorpamplona.quartz.nip01Core.core.HexKey import kotlinx.collections.immutable.ImmutableList import kotlinx.collections.immutable.persistentListOf @@ -98,6 +102,11 @@ fun MarmotGroupChatView( WatchLifecycleAndUpdateModel(feedViewModel) + val chatroom = + remember(nostrGroupId) { + accountViewModel.account.marmotGroupList.getOrCreateGroup(nostrGroupId) + } + val newMessageModel: MarmotNewMessageViewModel = viewModel(key = nostrGroupId + "MarmotNewMessageViewModel") newMessageModel.init(accountViewModel) newMessageModel.load(nostrGroupId) @@ -157,15 +166,27 @@ fun MarmotGroupChatView( Spacer(modifier = DoubleVertSpacer) - MarmotGroupMessageComposer( - nostrGroupId = nostrGroupId, - newMessageModel = newMessageModel, - accountViewModel = accountViewModel, - nav = nav, - onMessageSent = { - feedViewModel.feedState.sendToTop() - }, - ) + // A durable outbound gate means the group takes no new work: an + // unresolved disband request, a SelfRemove already sent, a realized + // removal. Sending would throw behind it, so the composer is replaced + // by the reason rather than left there to fail on tap — the history + // stays readable either way, which is the point of a gate that is not + // a terminal state. + val outboundGate by chatroom.outboundGate.collectAsStateWithLifecycle() + val gate = outboundGate + if (gate != null) { + MarmotGroupClosedComposer(gate) + } else { + MarmotGroupMessageComposer( + nostrGroupId = nostrGroupId, + newMessageModel = newMessageModel, + accountViewModel = accountViewModel, + nav = nav, + onMessageSent = { + feedViewModel.feedState.sendToTop() + }, + ) + } } } @@ -349,3 +370,32 @@ private fun MarmotGroupFileUploadDialog( isNip17 = false, ) } + +/** + * Stands in for the composer when an outbound gate is up. + * + * Deliberately a statement rather than a disabled text field: a greyed-out + * input still invites typing, and the three reasons are not the same — one is + * waiting on the group, one on a commit, and one is over. The group's history + * stays on screen above it. + */ +@Composable +private fun MarmotGroupClosedComposer(gate: LocalOutboundGate) { + val message = + when (gate) { + LocalOutboundGate.DISBANDING -> stringRes(R.string.marmot_group_composer_disbanding) + LocalOutboundGate.LEAVING -> stringRes(R.string.marmot_group_composer_leaving) + LocalOutboundGate.REMOVED -> stringRes(R.string.marmot_group_composer_removed) + } + Row( + modifier = EditFieldModifier.fillMaxWidth(), + horizontalArrangement = Arrangement.Center, + ) { + Text( + text = message, + color = MaterialTheme.colorScheme.placeholderText, + style = MaterialTheme.typography.bodySmall, + textAlign = TextAlign.Center, + ) + } +} diff --git a/amethyst/src/main/res/values/strings.xml b/amethyst/src/main/res/values/strings.xml index 083066de6a..c84993292f 100644 --- a/amethyst/src/main/res/values/strings.xml +++ b/amethyst/src/main/res/values/strings.xml @@ -2701,6 +2701,9 @@ Could not switch this group to encrypted attachments: %1$s Group disbanded Ending the group. It finishes once the group agrees. + This group is being ended. You can still read it. + You are leaving this group. + You are no longer a member of this group. Could not disband the group: %1$s Adding %1$s… Failed to add %1$s: %2$s diff --git a/cli/tests/README.md b/cli/tests/README.md index c3ae7cfb59..cf2b314a64 100644 --- a/cli/tests/README.md +++ b/cli/tests/README.md @@ -111,6 +111,16 @@ The Marmot harnesses come in two flavours, same scenarios: and uniffi surface (the apps call it) but has no `wn groups` verb, so test 29 runs one way only. + **The daemon is not a way around this**, which is worth stating because it + is the obvious next idea. `wnd`'s socket protocol + (`crates/cli/src/daemon/protocol.rs`) carries `Ping`, `Status`, `Shutdown`, + four `*Subscribe` variants, and `Execute { cli: Box }` — and that last + one takes the same clap command tree `wn` parses. The daemon is a persistent + host for the CLI's verbs, not a richer RPC, so a verb missing from `Cli` is + unreachable through the socket too. Closing these three needs either a verb + upstream in MDK or a driver linked against `marmot-uniffi`/`marmot-c`; both + are out of scope for a harness that deliberately builds MDK unpatched. + A third, slimmer harness covers the NIP-17 DM surface: - **`dm/dm-interop-headless.sh`** — two `amy` processes (Identity A and diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index b3cb67e24e..e5928616a3 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -2539,6 +2539,10 @@ class MarmotManager( chatroom.isCurrentProfile.value = view.isCurrentProfile chatroom.hasEncryptedMediaPolicy.value = encryptedMediaPolicy(nostrGroupId) != null } + // Read every sync, because a gate is raised and cleared by protocol + // events the UI never sees directly — a disband request resolving, a + // removal being realized. + chatroom.outboundGate.value = publishGate.outboundGateNow(nostrGroupId) val previousCount = chatroom.members.value.size val members = memberPubkeys(nostrGroupId) chatroom.members.value = members diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt index 573a1c3b29..05aa779b29 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/model/marmotGroups/MarmotGroupChatroom.kt @@ -30,6 +30,7 @@ import com.vitorpamplona.amethyst.commons.util.KmpLock import com.vitorpamplona.amethyst.commons.util.WeakReference import com.vitorpamplona.amethyst.commons.util.withLock import com.vitorpamplona.quartz.marmot.appComponents.GroupAvatarUrlV1 +import com.vitorpamplona.quartz.marmot.protocolCore.LocalOutboundGate import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl import kotlinx.coroutines.channels.BufferOverflow @@ -98,6 +99,18 @@ class MarmotGroupChatroom( */ var hasEncryptedMediaPolicy = MutableStateFlow(false) + /** + * Why this group takes no new outbound work, or null when it does. + * + * A durable outbound gate is not a lifecycle state: the member is still in + * the tree and the group is not terminal, but nothing new may be sent — + * an unresolved disband request, a SelfRemove already sent, a realized + * removal. A front end needs it separately from [isCurrentProfile] and the + * lifecycle so it can DISABLE the composer with a reason rather than let a + * send throw and surface as an error after the fact. + */ + var outboundGate = MutableStateFlow(null) + var adminPubkeys = MutableStateFlow>(emptyList()) var relays = MutableStateFlow>(emptyList()) var memberCount = MutableStateFlow(0) diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt index b1b651f63b..4ddf1943f6 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt @@ -20,10 +20,12 @@ */ package com.vitorpamplona.amethyst.commons.marmot +import com.vitorpamplona.amethyst.commons.model.marmotGroups.MarmotGroupChatroom import com.vitorpamplona.quartz.marmot.appComponents.GroupProfileV1 import com.vitorpamplona.quartz.marmot.mip01Groups.MarmotGroupData import com.vitorpamplona.quartz.marmot.protocolCore.GroupLifecycleState import com.vitorpamplona.quartz.marmot.protocolCore.InMemoryPublishObligationStore +import com.vitorpamplona.quartz.marmot.protocolCore.LocalOutboundGate import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal import kotlinx.coroutines.runBlocking @@ -31,6 +33,7 @@ import kotlin.test.Test import kotlin.test.assertEquals import kotlin.test.assertFailsWith import kotlin.test.assertFalse +import kotlin.test.assertNull import kotlin.test.assertTrue /** @@ -237,6 +240,26 @@ class MarmotDisbandTest { Unit } + @Test + fun `the gate reaches the front end's group state`() = + runBlocking { + // The UI cannot ask a suspending publish gate from the synchronous + // path that refreshes a conversation, so the gate is mirrored onto + // the chatroom. If that mirror is missing, the composer stays + // enabled on a group that refuses every send and the user finds out + // by tapping. + val f = Fixture() + f.createCurrentProfile() + val chatroom = MarmotGroupChatroom(nostrGroupId) + + f.manager.syncMetadataTo(nostrGroupId, chatroom) + assertNull(chatroom.outboundGate.value, "a live group has no gate") + + f.manager.disbandGroup(nostrGroupId) + f.manager.syncMetadataTo(nostrGroupId, chatroom) + assertEquals(LocalOutboundGate.DISBANDING, chatroom.outboundGate.value) + } + @Test fun `a pending disband request outlives a restart`() = runBlocking { diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt index c74b9470af..f1ed9c8d75 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotConvergenceEngine.kt @@ -265,6 +265,27 @@ class MarmotConvergenceEngine( ctx.lifecycle = pass.lifecycleWhileRunning(ctx.lifecycle) } + /** + * End the recovery a settled pass was running. + * + * `Recovering` describes a pass IN FLIGHT — a fork being resolved, or a + * disband candidate waiting for selection. Once the pass settles the group + * has a selected branch again and is `Stable`, so leaving the state behind + * makes every later reader believe a recovery is still running: the group + * reads as recovering forever, and anything that gates on the reported + * lifecycle (rather than on the publish gate, which is the authority for + * whether a commit may be prepared) silently stops working. + * + * Only `Recovering` is cleared. `Unrecoverable` is not a pass outcome — + * it means this client cannot safely apply more traffic and is cleared by a + * verified repair — and `Disbanded` is absorbing. + */ + private fun endRecovery(ctx: GroupContext) { + if (ctx.lifecycle == GroupLifecycleState.RECOVERING) { + ctx.lifecycle = GroupLifecycleState.STABLE + } + } + /** * Move a group to `Disbanded` once its lifecycle component says so. * @@ -562,6 +583,7 @@ class MarmotConvergenceEngine( trimCandidates(ctx) ctx.divergent.clear() ctx.pass = null + endRecovery(ctx) terminalizeIfDisbanded(groupId, ctx) val epoch = groupManager.getGroup(groupId)?.epoch ?: inputs.tipEpoch ConvergenceResolution( @@ -599,6 +621,7 @@ class MarmotConvergenceEngine( pass.freeze() ctx.pass = null + endRecovery(ctx) terminalizeIfDisbanded(groupId, ctx) ConvergenceResolution( groupId = groupId, diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt index 257b4be716..91bd6b769d 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt @@ -27,6 +27,8 @@ import com.vitorpamplona.quartz.marmot.mls.group.MlsGroupState import com.vitorpamplona.quartz.nip01Core.core.HexKey import com.vitorpamplona.quartz.nip01Core.core.toHexKey import com.vitorpamplona.quartz.utils.sha256.sha256 +import kotlinx.coroutines.flow.MutableStateFlow +import kotlinx.coroutines.flow.StateFlow import kotlinx.coroutines.sync.Mutex import kotlinx.coroutines.sync.withLock @@ -218,6 +220,24 @@ class MarmotPublishGate( private val gates = mutableMapOf() private val lifecycles = mutableMapOf() + /** + * An immutable copy of [gates], republished on every change. + * + * The map itself is mutable state guarded by [mutex], so it cannot be read + * from a non-suspending caller without a data race. A front end needs the + * gate on the synchronous path that refreshes a conversation's state — and + * making that path suspend would push `suspend` up through every caller for + * one flag — so the authority stays behind the lock and this is what + * everyone else reads. + */ + private val gateSnapshot = MutableStateFlow>(emptyMap()) + + /** Lock-free view of the outbound gates, for non-suspending readers. */ + val outboundGates: StateFlow> get() = gateSnapshot + + /** The gate blocking [groupId] right now, read without suspending. */ + fun outboundGateNow(groupId: HexKey): LocalOutboundGate? = gateSnapshot.value[groupId] + /** Reload unresolved obligations and outbound gates. Call once at startup, after group restore. */ suspend fun restore() = mutex.withLock { @@ -228,6 +248,7 @@ class MarmotPublishGate( // owner never asked to end it. LocalOutboundGate.entries.firstOrNull { it.name == name }?.let { gates[groupId] = it } } + gateSnapshot.value = gates.toMap() store.loadAll().forEach { bytes -> try { val obligation = MarmotPublishObligation.decodeTls(bytes) @@ -287,7 +308,7 @@ class MarmotPublishGate( store.saveGate(groupId, gate.name) mutex.withLock { gates[groupId] = gate - Unit + gateSnapshot.value = gates.toMap() } } @@ -296,7 +317,7 @@ class MarmotPublishGate( store.deleteGate(groupId) mutex.withLock { gates.remove(groupId) - Unit + gateSnapshot.value = gates.toMap() } } diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/accessories/NostrClientPublishExt.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/accessories/NostrClientPublishExt.kt index b2f2085a90..222e743746 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/accessories/NostrClientPublishExt.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/accessories/NostrClientPublishExt.kt @@ -78,6 +78,23 @@ class PublishResult( */ const val DEFAULT_TRANSPORT_RETRIES = 1 +/** + * Extra wall-clock granted once per retry that is actually issued. + * + * A retry is not free time: it starts a fresh dial-and-flush cycle at the + * moment the relay hung up, and by then most of the caller's budget is usually + * spent. Sharing the original deadline meant the retry was issued and then + * timed out before the relay could answer — the publish was reported failed + * having done the work and thrown the answer away, which is how a healthy + * loopback relay could still cost a message a run. + * + * Bounded by construction: only a relay that gave a transport failure earns it, + * and only as many times as [DEFAULT_TRANSPORT_RETRIES] allows, so the worst + * case is the caller's timeout plus this much per retried relay rather than an + * open-ended wait on something unreachable. + */ +const val TRANSPORT_RETRY_GRACE_MS = 5_000L + /** * Internal channel marker for "this relay is back up", so the wait loop — the * one coroutine that owns the retry bookkeeping — can re-issue a send that a @@ -207,11 +224,19 @@ suspend fun INostrClient.publishAndCollectResults( // that is healthy a moment later. The retries live inside the // caller's existing timeout, so nothing waits longer than before. val retriesLeft = relayList.associateWith { transportRetries }.toMutableMap() - // The withTimeout block will cancel the coroutine if the loop takes too long - withTimeoutOrNull(timeoutInSeconds * 1000) { + // The deadline is a moving target rather than one + // `withTimeout` around the whole loop: issuing a retry extends it by + // [TRANSPORT_RETRY_GRACE_MS], because the retry needs time the + // original budget has already spent. Everything else about the wait + // is unchanged — a relay that simply never answers still falls out at + // the caller's timeout. + var deadlineMs = timeoutInSeconds * 1000 + run { val awaitingReconnect = mutableSetOf() while (receivedResults.size < relayList.size) { - val result = resultChannel.receive() + val remainingMs = deadlineMs - mark.elapsedNow().inWholeMilliseconds + if (remainingMs <= 0) break + val result = withTimeoutOrNull(remainingMs) { resultChannel.receive() } ?: break if (result.message == RECONNECTED) { // The pool flushes what it still owes a relay as part of @@ -242,6 +267,7 @@ suspend fun INostrClient.publishAndCollectResults( // report the transport failure as before. receivedResults.remove(result.relay) awaitingReconnect.add(result.relay) + deadlineMs += TRANSPORT_RETRY_GRACE_MS Log.d("publishAndConfirm") { "Retrying ${event.id} on ${result.relay} after ${recorded.message}" } diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt index 65898448e9..8aafe8e10e 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/MarmotConvergenceWiringTest.kt @@ -276,6 +276,37 @@ class MarmotConvergenceWiringTest { assertTrue(obs.inbound.openConvergencePasses().isEmpty()) } + /** + * `Recovering` describes a pass in flight, so a settled pass must leave it. + * + * Leaving the state behind reads as a recovery that never ends: the group + * reports `Recovering` for the rest of the session, and anything that gates + * on the reported lifecycle rather than on the publish gate quietly stops + * working. The publish gate is what actually decides whether a commit may + * be prepared, which is why this was invisible — it is a lie in the + * reporting, not a lock, and only a reader notices. + */ + @Test + fun aSettledPassLeavesRecovering() = + runBlocking { + val fork = buildFork() + var now = 0L + val obs = observer(fork.observerStateBytes) { now } + + obs.inbound.processGroupEvent(fork.commitA) + obs.inbound.processGroupEvent(fork.commitB) + assertEquals(GroupLifecycleState.RECOVERING, obs.inbound.groupLifecycle(groupId)) + + now = ConvergencePolicy.V1.settlementQuiescenceMs + val settled = obs.inbound.settleDueConvergence() + assertEquals(1, settled.size) + + // The resolution reports it, and so does the engine afterwards — + // a caller that reads either one has to see a group it can use. + assertEquals(GroupLifecycleState.STABLE, settled.single().lifecycle) + assertEquals(GroupLifecycleState.STABLE, obs.inbound.groupLifecycle(groupId)) + } + /** * A plain relay redelivery is still just a duplicate. Convergence only * claims a commit when a RETAINED state authenticates it, and an echo's diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/nip01Core/relay/PublishRetriesTransportFailureTest.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/nip01Core/relay/PublishRetriesTransportFailureTest.kt index b8d455e623..5b0c7663c7 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/nip01Core/relay/PublishRetriesTransportFailureTest.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/nip01Core/relay/PublishRetriesTransportFailureTest.kt @@ -74,6 +74,12 @@ class PublishRetriesTransportFailureTest { private class HangsUpOnFirstEvent( private val delegate: WebsocketBuilder, private val dropFirstConnections: Int, + /** + * How long the relay takes to come back after it hung up. A real one + * does not reappear instantly, and the reconnect is the part the retry + * has to have time for. + */ + private val reconnectDelayMs: Long = 0, ) : WebsocketBuilder { val eventFramesSeen = AtomicInteger(0) private val socketsBuilt = AtomicInteger(0) @@ -83,6 +89,7 @@ class PublishRetriesTransportFailureTest { out: WebSocketListener, ): WebSocket { val index = socketsBuilt.getAndIncrement() + if (index >= dropFirstConnections && reconnectDelayMs > 0) Thread.sleep(reconnectDelayMs) val inner = delegate.build(url, out) val hangUp = index < dropFirstConnections return object : WebSocket by inner { @@ -127,6 +134,38 @@ class PublishRetriesTransportFailureTest { client.disconnect() } + @Test + fun aRetryOutlivesTheCallersOriginalDeadline() = + runBlocking { + // The bug this pins: the retry was issued and then timed out before + // the relay could answer, so the publish did the work and threw the + // answer away. The hang-up costs the whole one-second budget here — + // only the grace granted when the retry is issued can land it. + val builder = + HangsUpOnFirstEvent( + hub, + dropFirstConnections = 1, + reconnectDelayMs = 1_500, + ) + val client = NostrClient(builder, scope) + val event = NostrSignerInternal(KeyPair()).sign(TextNoteEvent.build("slow to come back")) + + val results = + client.publishAndCollectResults( + event = event, + relayList = setOf(InProcessRelays.DEFAULT_URL), + timeoutInSeconds = 1, + ) + + val result = results.values.single() + assertTrue( + result.accepted, + "a retry issued at the edge of the budget must be given time to answer " + + "(got \"${result.message}\")", + ) + client.disconnect() + } + @Test fun aRelayThatKeepsHangingUpStillReportsTheTransportFailure() = runBlocking { From 025116acc8d2c8b297f5ab6192cdb4a72d1becb6 Mon Sep 17 00:00:00 2001 From: Claude Date: Fri, 11 Sep 2026 02:53:37 +0000 Subject: [PATCH 77/79] fix(marmot): five defects from the pre-merge audit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A review of the full branch diff turned up five, all verified against the code before changing anything. **A departure gate nothing ever cleared.** `leaveGroup` raises a durable `LEAVING` gate and the only `clearGate` calls were inside `resolveDisbandRequest`, so a member who left and was invited back held a gate against a membership that no longer existed. Harmless until this branch, where gates began blocking outbound work AND surviving restarts — which turned it into a group that reads fine and can never be written to again, permanently. An authenticated re-join now clears it, which is the rule `REMOVED` already stated. **An SSRF hole in IPv6 avatar hosts.** `isNonRoutableIpv6` compared TEXT, so `::1` was caught and `0:0:0:0:0:0:0:1` — the same address, expanded — was not, and `::ffff:127.0.0.1` shares no prefix with anything it looked for. A group avatar URL could make every member fetch from their own machine. Addresses are now parsed to their 16 bytes and judged numerically, with IPv4-mapped and -compatible forms delegated to the existing IPv4 rules and an unparseable literal refused rather than waved through. **A message on a branch the group then adopted was never rendered.** An app payload that decrypted only on a candidate branch had its id recorded as processed, so a later redelivery hit the `Duplicate` early-return — even though that result is itself a witness FOR the branch, which convergence may go on to select. It is now retryable like `UndecryptableOuterLayer`. Safe to re-process: witnesses are a set keyed by sender, so a resent payload adds nothing to a branch's standing. **One dropped socket wedged a group until app restart.** An unconfirmed publish pins `PendingPublish`, and the only caller of `retryPendingPublishObligations` was `restoreAll`. A blocked commit now retries that group's obligations on its way through, so the next attempt is the recovery. `MarmotPublishBeforeApplyTest` measured "no replacement commit" by counting sends, which the retry breaks without violating anything: the re-send carries the SAME event id, and a fork means a second DIFFERENT commit for the held epoch. It now counts distinct ids, which is the property it always meant. **`forget()` left two of the gate's three copies behind.** It dropped the map but not the snapshot non-suspending readers see, nor the record on disk, so `restore()` resurrected a gate for a forgotten group. Latent — no production caller yet. 11,001 tests green. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../amethyst/commons/marmot/MarmotManager.kt | 22 +++- .../commons/marmot/MarmotDisbandTest.kt | 32 +++++ .../marmot/MarmotPublishBeforeApplyTest.kt | 17 ++- .../marmot/MarmotPublishDurabilityTest.kt | 50 ++++++++ .../quartz/marmot/MarmotInboundProcessor.kt | 32 +++-- .../marmot/appComponents/MarmotWebUrl.kt | 119 +++++++++++++++++- .../marmot/protocolCore/MarmotPublishGate.kt | 7 ++ .../appComponents/GroupAvatarUrlV1Test.kt | 34 +++++ 8 files changed, 297 insertions(+), 16 deletions(-) diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt index e5928616a3..586f4cd0a4 100644 --- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt +++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotManager.kt @@ -244,8 +244,8 @@ class MarmotManager( * the safe direction: it blocks new local commits until the group actually * knows what happened to this one. */ - suspend fun retryPendingPublishObligations() { - val pending = publishGate.allPending() + suspend fun retryPendingPublishObligations(onlyGroupId: HexKey? = null) { + val pending = publishGate.allPending().filter { onlyGroupId == null || it.groupId == onlyGroupId } if (pending.isEmpty()) return Log.d("MarmotManager") { "retryPendingPublishObligations(): ${pending.size} unresolved" } for (obligation in pending) { @@ -433,6 +433,14 @@ class MarmotManager( val result = inboundProcessor.processWelcome(welcomeEvent, hintNostrGroupId) if (result is WelcomeResult.Joined) { + // An authenticated re-join is what clears a departure gate — the + // rule `LocalOutboundGate.REMOVED` states, and `LEAVING` needs it + // just as much: a member who left and was invited back holds a gate + // raised against a membership that no longer exists. Nothing else + // clears it, so without this the rejoined group is readable and + // permanently unsendable, and the gate's durability makes that + // survive every restart. + publishGate.clearGate(result.nostrGroupId) subscriptionManager.subscribeGroup(result.nostrGroupId) Log.d("MarmotManager") { "Joined group ${result.nostrGroupId}" } } @@ -1052,6 +1060,16 @@ class MarmotManager( stage: suspend () -> MlsGroupManager.StagedCommit, ): CommitPublication { requireOutboundAllowed(nostrGroupId, "commit a group-state change", ignoringGate) + // A commit whose publish went unconfirmed leaves the group in + // `PendingPublish`, which correctly refuses new commits — but the only + // thing that ever resolved it was `restoreAll`, so one dropped socket + // wedged the group until the app was restarted. Retrying this group's + // obligations here makes the next attempt the recovery: republishing + // the same event is safe (a peer deduplicates it by id) and a retry + // that still fails leaves the group held exactly as before. + if (publishGate.lifecycle(nostrGroupId) == GroupLifecycleState.PENDING_PUBLISH) { + retryPendingPublishObligations(onlyGroupId = nostrGroupId) + } check(publishGate.canPrepareLocalCommit(nostrGroupId, ignoringGate)) { "Group $nostrGroupId cannot prepare a local commit " + "(lifecycle=${publishGate.lifecycle(nostrGroupId)}, gate=${publishGate.outboundGate(nostrGroupId)})" diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt index 4ddf1943f6..547ec25c2b 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotDisbandTest.kt @@ -260,6 +260,38 @@ class MarmotDisbandTest { assertEquals(LocalOutboundGate.DISBANDING, chatroom.outboundGate.value) } + @Test + fun `rejoining a group we left clears the departure gate`() = + runBlocking { + // Leaving raises a durable `Leaving` gate, and nothing but a + // re-join clears it. That was harmless while gates blocked nothing; + // now that they stop outbound work — and survive restarts — a group + // you left and were invited back to would be readable and + // permanently unsendable. + val alice = Fixture() + val bob = Fixture() + alice.createCurrentProfile() + + val kp = bob.manager.generateKeyPackageEvent(relays = emptyList()) + val (_, welcome) = alice.manager.addMember(nostrGroupId, kp, emptyList()) + bob.manager.ingest(welcome!!.giftWrapEvent) + + bob.manager.leaveGroup(nostrGroupId) + assertFailsWith("a leaving member may not send") { + bob.manager.buildTextMessage(nostrGroupId, "one more thing") + } + + // Invited back: a fresh KeyPackage, a fresh Welcome. + val rejoinKp = bob.manager.generateKeyPackageEvent(relays = emptyList()) + val (_, rejoinWelcome) = alice.manager.addMember(nostrGroupId, rejoinKp, emptyList()) + bob.manager.ingest(rejoinWelcome!!.giftWrapEvent) + + // The group has to be usable again — that is the whole point of + // being invited back. + bob.manager.buildTextMessage(nostrGroupId, "back again") + Unit + } + @Test fun `a pending disband request outlives a restart`() = runBlocking { diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt index 1d36ed7931..d84c56ca69 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishBeforeApplyTest.kt @@ -413,7 +413,22 @@ class MarmotPublishBeforeApplyTest { relays = listOf(relay), ) } - assertEquals(1, fx.publisher.published.size, "no replacement commit was offered") + // The invariant is that no REPLACEMENT COMMIT was minted for the + // held epoch — not that nothing went out. A blocked attempt now + // retries the stuck obligation on its way through, so the relay may + // legitimately see the same event twice; what it must never see is + // a second, different commit for the same epoch, because that is + // the fork publish-before-apply exists to prevent. Counting + // distinct ids says that, where counting sends only said it by + // accident. + assertEquals( + 1, + fx.publisher.published + .map { it.id } + .toSet() + .size, + "no replacement commit was offered; a re-send of the same event is not one", + ) } /** The group's own relay list is the default recipient scope. */ diff --git a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishDurabilityTest.kt b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishDurabilityTest.kt index b168f05cdb..e85afc40ca 100644 --- a/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishDurabilityTest.kt +++ b/commons/src/jvmTest/kotlin/com/vitorpamplona/amethyst/commons/marmot/MarmotPublishDurabilityTest.kt @@ -207,6 +207,56 @@ class MarmotPublishDurabilityTest { assertTrue(recordedBytes.isNotEmpty()) } + @Test + fun aWedgedGroupRecoversOnTheNextCommitWithoutARestart() = + runBlocking { + // `PendingPublish` correctly refuses new commits, but the only + // thing that ever resolved it was `restoreAll` — so a single + // dropped socket left the group unable to commit anything until the + // app was restarted. The next attempt has to BE the recovery. + val signer = NostrSignerInternal(KeyPair()) + val store = MemoryStateStore() + val obligations = MemoryObligationStore() + val publisher = SwitchablePublisher(accepts = false) + val groupId = "e".repeat(64) + + val manager = manager(signer, store, obligations, publisher) + manager.createGroup( + groupId, + MarmotGroupData( + nostrGroupId = groupId, + adminPubkeys = listOf(signer.pubKey), + relays = listOf(relay.url), + ), + ) + val founder = KeyPair() + manager.addMember( + nostrGroupId = groupId, + memberPubKey = founder.pubKey.toHexKey(), + keyPackageBytes = + manager.groupManager + .getGroup(groupId)!! + .createKeyPackage(founder.pubKey, ByteArray(0)) + .keyPackage + .toTlsBytes(), + keyPackageEventId = "f".repeat(64), + relays = listOf(relay), + ) + + // A commit the relay never acknowledged: the group is held. + runCatching { manager.setGroupProfile(groupId, "first try", "", listOf(relay)) } + assertEquals(GroupLifecycleState.PENDING_PUBLISH, manager.lifecycle(groupId)) + + // The relay is back. Without a restart, the next commit must clear + // the stuck obligation and then land. + publisher.accepts = true + manager.setGroupProfile(groupId, "second try", "", listOf(relay)) + + assertEquals(GroupLifecycleState.STABLE, manager.lifecycle(groupId)) + assertTrue(obligations.entries.isEmpty(), "the stuck obligation resolved on the way through") + assertEquals("second try", manager.groupView(groupId)?.name) + } + @Test fun aRetryThatFailsAgainKeepsTheGroupHeld() = runBlocking { diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt index c7635b6dc4..698be085ec 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/MarmotInboundProcessor.kt @@ -334,15 +334,31 @@ class MarmotInboundProcessor( GroupEventResult.Error(groupId, "Failed to process GroupEvent: ${e.message}", e) } - // Track processed events for dedup — except UndecryptableOuterLayer, - // which must stay retryable. These events are typically future-epoch - // arrivals buffered by the handler and replayed after a - // CommitProcessed advances our epoch; marking them processed here - // would cause the retry to hit the Duplicate early-return above and - // skip MLS decryption entirely. DoS is already bounded by the - // handler's per-group pending buffer. + // Track processed events for dedup — except the two results that must + // stay RETRYABLE, because for both of them "we saw this" is not the + // same as "we are done with this". + // + // UndecryptableOuterLayer is typically a future-epoch arrival buffered + // by the handler and replayed once a CommitProcessed advances our + // epoch; marking it processed would send the retry into the Duplicate + // early-return above and skip MLS decryption entirely. + // + // AppMessageOnCandidateBranch is the same shape one level up: the + // payload decrypted on a branch that was losing AT THE TIME, and + // convergence may still select that branch — this result is itself a + // witness FOR it. Remembering the id would mean a message that landed + // on the branch the group went on to adopt is dropped as a duplicate + // and never rendered, which is precisely backwards. Re-processing is + // safe: witnesses are a set keyed by sender account, so a resent + // payload adds nothing to a branch's standing and is admitted as + // ordinary rather than selection-relevant. + // + // DoS is bounded for both by the handler's per-group pending buffer. val idToRemember = messageId - if (idToRemember != null && result !is GroupEventResult.UndecryptableOuterLayer) { + if (idToRemember != null && + result !is GroupEventResult.UndecryptableOuterLayer && + result !is GroupEventResult.AppMessageOnCandidateBranch + ) { processedIdsMutex.withLock { processedMessageIds.add(idToRemember) // Trim the set if it exceeds the max size diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotWebUrl.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotWebUrl.kt index b0b4e71bc0..6200ad2ce8 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotWebUrl.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/appComponents/MarmotWebUrl.kt @@ -224,12 +224,121 @@ object MarmotWebUrl { a >= 224 } + /** + * Decide an IPv6 literal on its BYTES, never on how it was spelled. + * + * Matching text was the bug: `::1` is one of many spellings of loopback, + * and `0:0:0:0:0:0:0:1` — the same address, fully expanded — matched + * nothing and read as routable. `::ffff:127.0.0.1` is worse still, because + * it is IPv4 loopback wearing an IPv6 coat and shares no prefix with any + * of the strings above. Both made a group avatar URL a way to have every + * member fetch from their own machine. + * + * An address this cannot parse is refused rather than allowed: "we could + * not tell" must not mean "go ahead", which is the same rule the IPv4 side + * applies to shapes like `0x7f.1`. + */ private fun isNonRoutableIpv6(addr: String): Boolean { - val a = addr.lowercase() - if (a == "::1" || a == "::") return true - // Unique-local (fc00::/7) and link-local (fe80::/10). - return a.startsWith("fc") || a.startsWith("fd") || a.startsWith("fe8") || - a.startsWith("fe9") || a.startsWith("fea") || a.startsWith("feb") + val bytes = parseIpv6(addr) ?: return true + + // An IPv4-mapped (::ffff:a.b.c.d) or IPv4-compatible (::a.b.c.d) + // address is really that IPv4 address, so it gets the IPv4 rules. + val v4Prefix = bytes.take(10).all { it.toInt() == 0 } + if (v4Prefix) { + val mapped = bytes[10].toInt() and 0xFF + val mapped2 = bytes[11].toInt() and 0xFF + if ((mapped == 0xFF && mapped2 == 0xFF) || (mapped == 0 && mapped2 == 0)) { + val packed = + ((bytes[12].toLong() and 0xFF) shl 24) or + ((bytes[13].toLong() and 0xFF) shl 16) or + ((bytes[14].toLong() and 0xFF) shl 8) or + (bytes[15].toLong() and 0xFF) + // `::` and `::1` land here too, and both are non-routable under + // the IPv4 rules (0.0.0.0 and 0.0.0.1 are in 0.0.0.0/8). + return isNonRoutableIpv4(packed) + } + } + + val first = bytes[0].toInt() and 0xFF + val second = bytes[1].toInt() and 0xFF + return when { + // Unique-local fc00::/7. + first == 0xFC || first == 0xFD -> true + // Link-local fe80::/10 — the top two bits of the second byte. + first == 0xFE && (second and 0xC0) == 0x80 -> true + // Multicast ff00::/8. + first == 0xFF -> true + else -> false + } + } + + /** + * The 16 bytes of an IPv6 literal, or null when it is not one. + * + * Handles `::` compression once, a trailing embedded IPv4 dotted quad, and + * a `%zone` suffix (dropped — a zone never makes an address more routable). + */ + private fun parseIpv6(addr: String): ByteArray? { + val text = addr.lowercase().substringBefore('%') + if (text.isEmpty()) return null + + val doubleColon = text.indexOf("::") + if (doubleColon != text.lastIndexOf("::")) return null + + val headText = if (doubleColon >= 0) text.substring(0, doubleColon) else text + val tailText = if (doubleColon >= 0) text.substring(doubleColon + 2) else "" + + val head = mutableListOf() + val tail = mutableListOf() + + // The embedded-IPv4 form is only legal as the last element, and it + // contributes two groups rather than one. + fun push( + into: MutableList, + piece: String, + isLast: Boolean, + ): Boolean { + if (piece.contains('.')) { + if (!isLast) return false + val quad = packIpv4(piece) ?: return false + if (piece.count { it == '.' } != 3) return false + into.add(((quad shr 16) and 0xFFFF).toInt()) + into.add((quad and 0xFFFF).toInt()) + return true + } + if (piece.isEmpty() || piece.length > 4) return false + val value = piece.toIntOrNull(16) ?: return false + into.add(value) + return true + } + + if (headText.isNotEmpty()) { + val pieces = headText.split(':') + pieces.forEachIndexed { i, piece -> + if (!push(head, piece, i == pieces.lastIndex && doubleColon < 0)) return null + } + } + if (tailText.isNotEmpty()) { + val pieces = tailText.split(':') + pieces.forEachIndexed { i, piece -> + if (!push(tail, piece, i == pieces.lastIndex)) return null + } + } + + val groups = + when { + doubleColon < 0 -> if (head.size == 8) head else return null + head.size + tail.size > 7 -> return null + else -> head + List(8 - head.size - tail.size) { 0 } + tail + } + if (groups.size != 8) return null + + val bytes = ByteArray(16) + groups.forEachIndexed { i, group -> + bytes[i * 2] = ((group shr 8) and 0xFF).toByte() + bytes[i * 2 + 1] = (group and 0xFF).toByte() + } + return bytes } /** Splits `host:port`, keeping an IPv6 literal's brackets on the host. */ diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt index 91bd6b769d..369233a9c1 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/marmot/protocolCore/MarmotPublishGate.kt @@ -434,10 +434,17 @@ class MarmotPublishGate( suspend fun forget(groupId: HexKey) { val ids = mutex.withLock { pending.values.filter { it.groupId == groupId }.map { it.obligationId } } ids.forEach { store.delete(it) } + // The gate has three copies now — the map, the snapshot every + // non-suspending reader sees, and the record on disk. Dropping only the + // map would leave `outboundGateNow` still reporting a gate for a group + // this client has forgotten, and `restore()` would bring it back on the + // next start. + store.deleteGate(groupId) mutex.withLock { ids.forEach { pending.remove(it) } lifecycles.remove(groupId) gates.remove(groupId) + gateSnapshot.value = gates.toMap() } } } diff --git a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt index a488d12136..dab9c56995 100644 --- a/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt +++ b/quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/marmot/appComponents/GroupAvatarUrlV1Test.kt @@ -160,6 +160,40 @@ class GroupAvatarUrlV1Test { assertTrue(MarmotWebUrl.isSafeToContact("https://8.8.8.8/a.png")) } + @Test + fun anIpv6LiteralIsJudgedOnItsBytesNotItsSpelling() { + // Matching text let the same address through under another name. + // Loopback, in four spellings that are all ::1: + assertTrue("::1", !MarmotWebUrl.isSafeToContact("https://[::1]/a.png")) + assertTrue("expanded", !MarmotWebUrl.isSafeToContact("https://[0:0:0:0:0:0:0:1]/a.png")) + assertTrue("padded", !MarmotWebUrl.isSafeToContact("https://[0000:0000:0000:0000:0000:0000:0000:0001]/a.png")) + assertTrue("mixed case", !MarmotWebUrl.isSafeToContact("https://[::0001]/a.png")) + + // IPv4 loopback wearing an IPv6 coat — shares no prefix with any of + // the strings the old check compared against. + assertTrue("v4-mapped loopback", !MarmotWebUrl.isSafeToContact("https://[::ffff:127.0.0.1]/a.png")) + assertTrue("v4-compatible loopback", !MarmotWebUrl.isSafeToContact("https://[::127.0.0.1]/a.png")) + assertTrue("v4-mapped private", !MarmotWebUrl.isSafeToContact("https://[::ffff:10.0.0.1]/a.png")) + assertTrue("v4-mapped link-local", !MarmotWebUrl.isSafeToContact("https://[::ffff:169.254.169.254]/a.png")) + + assertTrue("unspecified", !MarmotWebUrl.isSafeToContact("https://[::]/a.png")) + assertTrue("unique local", !MarmotWebUrl.isSafeToContact("https://[fd00::1]/a.png")) + assertTrue("unique local fc", !MarmotWebUrl.isSafeToContact("https://[fc00::1]/a.png")) + assertTrue("link local", !MarmotWebUrl.isSafeToContact("https://[fe80::1]/a.png")) + // fe80::/10 is the top TEN bits, so febf is in range and fec0 is not — + // the old prefix test got this right by accident and wrong in general. + assertTrue("link local top of range", !MarmotWebUrl.isSafeToContact("https://[febf::1]/a.png")) + assertTrue("multicast", !MarmotWebUrl.isSafeToContact("https://[ff02::1]/a.png")) + // A zone index never makes an address more routable. + assertTrue("zoned link local", !MarmotWebUrl.isSafeToContact("https://[fe80::1%25eth0]/a.png")) + // Unparseable is refused, not waved through. + assertTrue("garbage", !MarmotWebUrl.isSafeToContact("https://[1:2:3::4::5]/a.png")) + + // A real, routable v6 address still works. + assertTrue(MarmotWebUrl.isSafeToContact("https://[2001:4860:4860::8888]/a.png")) + assertTrue(MarmotWebUrl.isSafeToContact("https://[2606:4700:4700::1111]/a.png")) + } + @Test fun aHostThatWouldNeedIdnaIsRefusedRatherThanGuessedAt() { // We do not implement IDNA/punycode, so we cannot produce the encoded From 3a1947e733866bcd0416f57da78f340177c43b9a Mon Sep 17 00:00:00 2001 From: Claude Date: Fri, 11 Sep 2026 03:11:13 +0000 Subject: [PATCH 78/79] test(marmot): let the disband test converge instead of snapshotting MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Test 29 asserted that wn reaches amy's post-disband epoch within one fixed window. That is stricter than the protocol promises, and it failed on a full-suite run for a case `group-lifecycle-v1.md` explicitly allows. MDK rotates its own leaf shortly after joining, so it can commit between the epoch-agreement gate and amy's disband — and then the two have forked. What the spec guarantees from there is not "the disband lands first time" but that the REQUEST survives, is regenerated against whichever branch was selected, and lands eventually. The old assertion could only pass in the race-free case, and a busier machine widens the race. The loop now re-reads AMY's epoch each round, because regeneration advances it, and drives amy's own sync, which is what carries a pass to settlement and re-issues a disband that lost. It also adds a check the old version lacked: once the two agree, amy must still read the group as disbanded. "Epochs agree but the group is live" is the outcome actually worth catching, and counting epochs alone never would have. Evidence this is a race and not a regression from the audit fixes: the two commits in the failing window carry different `h` tags, so they are commits in two different groups rather than a fork, and the test passes in isolation (`epoch 1 -> 2, wn at 2`). A full run with this change is the confirmation and is not in yet. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- cli/tests/marmot/tests-media.sh | 27 +++++++++++++++++++++++---- 1 file changed, 23 insertions(+), 4 deletions(-) diff --git a/cli/tests/marmot/tests-media.sh b/cli/tests/marmot/tests-media.sh index e53499e8fe..1779cc4ee4 100644 --- a/cli/tests/marmot/tests-media.sh +++ b/cli/tests/marmot/tests-media.sh @@ -678,17 +678,36 @@ test_29_disband_amy_to_wn() { record_result "$id" fail "amy's epoch did not advance past $before_epoch"; return fi - local deadline=$(( $(date +%s) + 150 )) accepted=0 saw="" + # Converge, don't snapshot. MDK rotates its own leaf shortly after joining, + # so it can commit between the epoch gate above and the disband below — and + # then the two have forked. The protocol's answer is not "the disband lands + # first time": it is that the REQUEST survives, is regenerated against + # whichever branch was selected, and lands eventually. Asserting the + # race-free happy path made this test fail on a busy machine for a case the + # spec explicitly allows, so the loop re-reads amy's epoch each round — + # regeneration moves it — and drives amy's own sync, which is what carries a + # pass to settlement and re-issues a disband that lost. + local deadline=$(( $(date +%s) + 240 )) accepted=0 saw="" amy_now="$after_epoch" while [[ $(date +%s) -lt $deadline ]]; do + amy_now=$(amy_json marmot group show "$gid" 2>/dev/null | jq -r '.epoch // empty') saw=$(wn_b_json groups show "$mls_gid" 2>/dev/null | jq -r '.result.mls.epoch // empty') - if [[ -n "$saw" && "$saw" == "$after_epoch" ]]; then accepted=1; break; fi + if [[ -n "$saw" && -n "$amy_now" && "$saw" == "$amy_now" ]]; then accepted=1; break; fi wn_b sync >/dev/null 2>&1 || true sleep 5 done - printf 'disband29 epoch %s -> %s, wn at %s\n' "$before_epoch" "$after_epoch" "${saw:-}" >>"$LOG_FILE" + printf 'disband29 epoch %s -> %s (amy now %s), wn at %s\n' \ + "$before_epoch" "$after_epoch" "${amy_now:-?}" "${saw:-}" >>"$LOG_FILE" if [[ "$accepted" -ne 1 ]]; then - record_result "$id" fail "wn stayed at epoch ${saw:-} instead of amy's $after_epoch — it rejected the disband commit" + record_result "$id" fail "wn stayed at epoch ${saw:-} while amy is at ${amy_now:-?} — the disband never converged" + return + fi + + # Converged — and amy must still read the group as ended. A disband that + # lost its branch and was never regenerated would agree on an epoch here + # while leaving the group live, which is the failure worth catching. + if [[ "$(amy_json marmot group show "$gid" 2>/dev/null | jq -r '.disbanded // false')" != "true" ]]; then + record_result "$id" fail "amy and wn agree on epoch ${saw} but the group is not disbanded" return fi record_result "$id" pass From 0b3671f7c7bcd98218dd4f18706b4e7b50559939 Mon Sep 17 00:00:00 2001 From: Claude Date: Fri, 11 Sep 2026 11:45:09 +0000 Subject: [PATCH 79/79] fix(relay): stop a publish retry silently dialing nothing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The transport retry assumed the relay it is retrying is still in the connection pool. `reconnect()` walks the pool's current relays, so when it is not, the retry is issued, logged, dials nothing, and is reported at the deadline as the same hang-up we already knew about — the one failure mode a retry must not have, because it is indistinguishable from having tried. A relay leaves the pool when nothing wants it any more. `NostrClient` recomputes that set through `combine(...).sample(300)` and `RelayPool.updatePool` retires whatever the sampled snapshot omits, socket included. A snapshot taken before this publish claimed the relay therefore retires a relay with an event in flight. The outbox still holds the event and would re-send it on the next connect, so the only thing actually missing is pool membership. `ensureInPool` restores it before the reconnect. Defaults to a no-op on `INostrClient` rather than reusing `getOrCreateRelay`, which throws for clients that expose no pool, and it is a no-op in the ordinary case where the relay never left. Not covered by a new test, deliberately rather than by omission: every deterministic route to "relay absent from the pool" runs through the outbox exhausting its own retry budget, and at that point the event has been abandoned and NOT re-sending is correct. The one route that reaches this branch is the 300ms sampling window, which cannot be forced through the public API. So this is defence in depth on an inferred cause, and the evidence for the inference is the interop harness's `disconnected before OK` on test 22: the event `a153a582…` IS stored in the harness relay's database, so the relay took it and only the OK was lost; and the relay did not hang up (no rate limits configured, a 20-minute idle timeout, and a 1024-message slow-client queue against a database holding 107 events total), which leaves a client-side teardown. Existing publish suites green. Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_016kCuA6tc4JQzHPCDd39GHq --- .../nip01Core/relay/client/INostrClient.kt | 16 ++++++++++++++++ .../nip01Core/relay/client/NostrClient.kt | 6 ++++++ .../client/accessories/NostrClientPublishExt.kt | 17 ++++++++++++++--- 3 files changed, 36 insertions(+), 3 deletions(-) diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/INostrClient.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/INostrClient.kt index 0596190836..b77d033c7d 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/INostrClient.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/INostrClient.kt @@ -57,6 +57,22 @@ interface INostrClient : AutoCloseable { */ fun resetBackoff() { } + /** + * Puts [url] back in the connection pool if it is no longer there, without dialing it. + * + * [reconnect] can only act on relays the pool still holds, so a caller that means to + * revive one it stopped hearing from has to restore that precondition first — + * otherwise the reconnect iterates past an empty pool and does nothing at all, which + * is indistinguishable from a relay that was asked and stayed silent. + * + * A relay leaves the pool when nothing wants it any more (no subscription, no count, + * no pending publish). That is normally the right call and normally permanent, so + * this is deliberately narrow: it restores membership and leaves dialing, backoff and + * filter syncing to [reconnect]. Defaults to a no-op — a client with no pool has + * nothing to restore and should not be forced to implement one. + */ + fun ensureInPool(url: NormalizedRelayUrl) { } + fun isActive(): Boolean /** diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/NostrClient.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/NostrClient.kt index 5b75850ea3..21c16d9b64 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/NostrClient.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/NostrClient.kt @@ -274,6 +274,12 @@ class NostrClient( relayPool.resetBackoff() } + override fun ensureInPool(url: NormalizedRelayUrl) { + // Membership only. Connecting is reconnect()'s job, and going through the pool's + // own create keeps the relay client identical to the one publish would have made. + relayPool.createRelayIfAbsent(url) + } + override fun subscribe( subId: String, filters: Map>, diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/accessories/NostrClientPublishExt.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/accessories/NostrClientPublishExt.kt index 222e743746..4a4428f890 100644 --- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/accessories/NostrClientPublishExt.kt +++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/accessories/NostrClientPublishExt.kt @@ -273,9 +273,20 @@ suspend fun INostrClient.publishAndCollectResults( } // The event is still in the pool's outbox for this relay, // so the dial is the whole job: the pool flushes what it - // owes the relay once the socket is back. Ignore the - // accumulated backoff — this is a user-visible publish - // waiting on it, not a background refresh. + // owes the relay once the socket is back. + // + // Except that a reconnect can only dial relays the pool + // still holds, and a relay can leave it — the desired set + // is sampled, so a snapshot taken before this publish + // claimed the relay retires it, socket and all. Restoring + // membership first is what keeps the retry from being a + // silent no-op: issued, logged, dialing nothing, and + // reported at the deadline as the hang-up we already knew + // about. A no-op when the relay is still there, which is + // the ordinary case. + ensureInPool(result.relay) + // Ignore the accumulated backoff — this is a user-visible + // publish waiting on it, not a background refresh. resetBackoff() reconnect(onlyIfChanged = false, ignoreRetryDelays = true) }