v0.0.7 - Disable perf probe by default (fix 322% WebProcess CPU), gate behind setting, top-frame only, quiet console logging

Cargo.lock

@@ -3056,7 +3056,7 @@ dependencies = [
 
 [[package]]
 name = "sovereign_browser"
-version = "0.0.5"
+version = "0.0.7"
 dependencies = [
  "anyhow",
  "base64",

Cargo.toml

@@ -6,7 +6,7 @@ members = [
 
 [package]
 name = "sovereign_browser"
-version = "0.0.6"
+version = "0.0.7"
 edition = "2021"
 license = "MIT"
 description = "A Linux x86 web browser built on WebKitGTK with Nostr identity"

VERSION

@@ -1 +1 @@
-0.0.6
+0.0.7

run.sh

@@ -4,10 +4,15 @@ set -e
 # run.sh - Build (only if needed) and run the sovereign_browser binary.
 #
 # Usage:
-#   ./run.sh [args...]        # build if stale, then run with args
+#   ./run.sh [args...]        # build if stale (debug), then run with args
+#   ./run.sh --release        # build/run the optimized release binary instead
 #   ./run.sh --build          # force a rebuild, then run
 #   ./run.sh --no-build       # run without building (fails if missing)
 #
+# The default profile is DEBUG: it rebuilds in a few seconds, which is what
+# you want while iterating. Pass --release for the optimized binary (much
+# slower to build, faster at runtime).
+#
 # The binary is rebuilt only when it is missing or when any source file
 # (src/**, Cargo.toml, Cargo.lock, www/**) is newer than the binary.
 
@@ -29,15 +34,18 @@ SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 cd "$SCRIPT_DIR"
 
 BIN_NAME="sovereign_browser"
-BIN_PATH="target/release/${BIN_NAME}"
 
 # --- Args ---------------------------------------------------------------
 FORCE_BUILD=false
 NO_BUILD=false
+RELEASE=false
 RUN_ARGS=()
 
 for arg in "$@"; do
     case "$arg" in
+        --release)
+            RELEASE=true
+            ;;
         --build)
             FORCE_BUILD=true
             ;;
@@ -50,6 +58,17 @@ for arg in "$@"; do
     esac
 done
 
+# --- Profile ------------------------------------------------------------
+# Debug is the default; --release selects the optimized profile.
+if [[ "$RELEASE" == true ]]; then
+    PROFILE_DIR="release"
+    CARGO_PROFILE_ARGS=(--release)
+else
+    PROFILE_DIR="debug"
+    CARGO_PROFILE_ARGS=()
+fi
+BIN_PATH="target/${PROFILE_DIR}/${BIN_NAME}"
+
 # --- Determine whether a build is needed --------------------------------
 needs_build() {
     # No binary yet -> must build.
@@ -70,12 +89,12 @@ if [[ "$NO_BUILD" == true ]]; then
     fi
     print_status "Skipping build (--no-build)."
 elif [[ "$FORCE_BUILD" == true ]]; then
-    print_status "Forcing rebuild of ${BIN_NAME} (release)..."
+    print_status "Forcing rebuild of ${BIN_NAME} (${PROFILE_DIR})..."
-    cargo build --release
+    cargo build "${CARGO_PROFILE_ARGS[@]}"
     print_success "Build complete."
 elif needs_build; then
-    print_status "Sources changed or binary missing; building ${BIN_NAME} (release)..."
+    print_status "Sources changed or binary missing; building ${BIN_NAME} (${PROFILE_DIR})..."
-    cargo build --release
+    cargo build "${CARGO_PROFILE_ARGS[@]}"
     print_success "Build complete."
 else
     print_status "Binary is up to date; skipping build."

src/nostr_bridge.rs

@@ -62,8 +62,12 @@ fn handle_sovereign_scheme(request: &URISchemeRequest) {
     let route = path.split('?').next().unwrap_or(path);
 
     // ── nostr API ───────────────────────────────────────────────────
-    if route.starts_with("nostr/") {
+    // NOTE: pass `path` (which still includes the query string), not
-        handle_nostr_api(request, &route[6..]);
+    // `route`. The JS shim encodes the request body as `?body=<json>`,
+    // so stripping the query here would make every body-bearing method
+    // (signEvent, nip04/nip44) fail with "Invalid request body".
+    if path.starts_with("nostr/") {
+        handle_nostr_api(request, &path[6..]);
         return;
     }
 
@@ -527,6 +531,16 @@ fn handle_settings_set(request: &URISchemeRequest, query: &str) {
                 let _ = db::db_kv_set("agent_server_enabled", new);
                 (new == "true", true)
             }
+            "perf_probe_enabled" => {
+                // Toggle the per-tab performance probe. OFF by default; the
+                // probe patches hot JS APIs and runs a permanent rAF loop.
+                // Takes effect on the next tab (or reload).
+                let mut s = settings::settings_get();
+                s.perf_probe_enabled = !s.perf_probe_enabled;
+                settings::settings_update(&serde_json::json!({"perf_probe_enabled": s.perf_probe_enabled}));
+                settings::settings_save();
+                (s.perf_probe_enabled, false)
+            }
             _ => {
                 respond_error_json(request, 400, "Unknown feature");
                 return;
@@ -687,6 +701,7 @@ fn handle_settings_config_json(request: &URISchemeRequest) {
         "dev_extras": true,
         "file_access": true,
         "universal_access": true,
+        "perf_probe_enabled": s.perf_probe_enabled,
         "search_engines": search_engines,
         "shortcuts": shortcuts,
     });
@@ -721,21 +736,27 @@ fn handle_nostr_api(request: &URISchemeRequest, method: &str) {
                 respond_error_json(request, 403, "Read-only mode");
                 return;
             }
-            if let Some(ref signer) = state.signer {
+            let signer = match &state.signer {
-                match serde_json::from_str::<nostr_core::types::Event>(&event_json) {
+                Some(s) => s.clone(),
-                    Ok(event) => {
+                None => {
-                        match signer.sign_event(&event) {
+                    respond_error_json(request, 500, "No signer available");
-                            Ok(signed) => {
+                    return;
-                                let result = serde_json::to_string(&signed).unwrap_or_default();
-                                respond_json(request, &result);
-                            }
-                            Err(e) => respond_error_json(request, 500, &e.to_string()),
-                        }
-                    }
-                    Err(e) => respond_error_json(request, 400, &e.to_string()),
                 }
-            } else {
+            };
-                respond_error_json(request, 500, "No signer available");
+            let pubkey_hex = state.pubkey_hex.clone();
+            drop(state);
+
+            match parse_unsigned_event(&event_json, &pubkey_hex) {
+                Ok(event) => {
+                    match signer.sign_event(&event) {
+                        Ok(signed) => {
+                            let result = serde_json::to_string(&signed).unwrap_or_default();
+                            respond_json(request, &result);
+                        }
+                        Err(e) => respond_error_json(request, 500, &e.to_string()),
+                    }
+                }
+                Err(e) => respond_error_json(request, 400, &e),
             }
         }
         "getRelays" => {
@@ -817,22 +838,31 @@ fn handle_nostr_api(request: &URISchemeRequest, method: &str) {
                     let plaintext = params.get("plaintext").and_then(|v| v.as_str()).unwrap_or("");
                     match signer.nip44_encrypt(&peer_pk, plaintext) {
                         Ok(ciphertext) => {
-                            let json = serde_json::json!({ "result": ciphertext });
+                            // NIP-44 ciphertext is raw bytes; the NIP-07 API
+                            // (and the C bridge) represent it as a base64
+                            // string. Serializing the Vec<u8> directly would
+                            // emit a JSON array of numbers instead.
+                            let b64 = nostr_core::util::base64_encode(&ciphertext);
+                            let json = serde_json::json!({ "result": b64 });
                             respond_json(request, &serde_json::to_string(&json).unwrap_or_default());
                         }
                         Err(e) => respond_error_json(request, 500, &e.to_string()),
                     }
                 }
                 "nip44Decrypt" => {
-                    let ciphertext_bytes: Vec<u8> = params.get("ciphertext").map(|v| {
+                    // The JS shim sends the ciphertext as a base64 string
-                        if let Some(s) = v.as_str() {
+                    // (NIP-07 convention). The signer expects the raw binary
-                            s.as_bytes().to_vec()
+                    // payload, so base64-decode it. Passing the base64 text's
-                        } else if let Some(arr) = v.as_array() {
+                    // ASCII bytes through unchanged corrupts the payload and
-                            arr.iter().filter_map(|b| b.as_u64().map(|n| n as u8)).collect()
+                    // makes the remote signer reject it with invalid_params.
-                        } else {
+                    let ciphertext_b64 = params.get("ciphertext").and_then(|v| v.as_str()).unwrap_or("");
-                            Vec::new()
+                    let ciphertext_bytes = match nostr_core::util::base64_decode(ciphertext_b64) {
+                        Ok(b) => b,
+                        Err(e) => {
+                            respond_error_json(request, 400, &format!("Invalid base64 ciphertext: {}", e));
+                            return;
                         }
-                    }).unwrap_or_default();
+                    };
                     match signer.nip44_decrypt(&peer_pk, &ciphertext_bytes) {
                         Ok(plaintext) => {
                             let json = serde_json::json!({ "result": plaintext });
@@ -862,8 +892,14 @@ fn extract_query_param(query: &str, key: &str) -> Option<String> {
 }
 
 /// Simple URL percent-decoding.
+///
+/// Decodes into a byte buffer first, then interprets the result as UTF-8.
+/// This is required for correctness: `encodeURIComponent` percent-encodes
+/// each byte of a multi-byte UTF-8 sequence separately, so pushing each
+/// decoded byte as a `char` (the previous behaviour) would corrupt any
+/// non-ASCII content (e.g. emoji or accented characters in a post body).
 fn url_decode(s: &str) -> String {
-    let mut result = String::with_capacity(s.len());
+    let mut bytes: Vec<u8> = Vec::with_capacity(s.len());
     let mut chars = s.chars().peekable();
     while let Some(c) = chars.next() {
         if c == '%' {
@@ -871,18 +907,22 @@ fn url_decode(s: &str) -> String {
             let h2 = chars.next();
             if let (Some(a), Some(b)) = (h1, h2) {
                 if let Ok(byte) = u8::from_str_radix(&format!("{}{}", a, b), 16) {
-                    result.push(byte as char);
+                    bytes.push(byte);
                     continue;
                 }
             }
-            result.push(c);
+            // Malformed escape — emit the literal '%' and the consumed chars.
+            bytes.push(b'%');
+            if let Some(a) = h1 { bytes.extend_from_slice(a.to_string().as_bytes()); }
+            if let Some(b) = h2 { bytes.extend_from_slice(b.to_string().as_bytes()); }
         } else if c == '+' {
-            result.push(' ');
+            bytes.push(b' ');
         } else {
-            result.push(c);
+            let mut buf = [0u8; 4];
+            bytes.extend_from_slice(c.encode_utf8(&mut buf).as_bytes());
         }
     }
-    result
+    String::from_utf8_lossy(&bytes).into_owned()
 }
 
 /// Parse a hex pubkey string into a PublicKey.
@@ -895,6 +935,114 @@ fn parse_pubkey_hex(hex_str: &str) -> Option<nostr_core::types::PublicKey> {
     Some(nostr_core::types::PublicKey::from_bytes(arr))
 }
 
+/// Parse an unsigned event JSON body from the JS shim into a
+/// `nostr_core::types::Event`, injecting the active identity's pubkey.
+///
+/// The JS shim sends an *unsigned* event — typically
+/// `{kind, content, tags, created_at}` with no `pubkey`/`id`/`sig`.
+/// `nostr_core::types::Event` requires `pubkey` (it is not an `Option`),
+/// so deserializing the raw body fails with "missing field `pubkey`".
+/// This fills the pubkey in from the signed-in user, mirroring the C
+/// bridge. An explicit non-empty `pubkey` in the body is preserved.
+fn parse_unsigned_event(
+    event_json: &str,
+    pubkey_hex: &str,
+) -> Result<nostr_core::types::Event, String> {
+    let mut value: serde_json::Value =
+        serde_json::from_str(event_json).map_err(|e| format!("Invalid JSON: {}", e))?;
+
+    if let Some(obj) = value.as_object_mut() {
+        let needs_pubkey = obj
+            .get("pubkey")
+            .and_then(|v| v.as_str())
+            .map(|s| s.is_empty())
+            .unwrap_or(true);
+        if needs_pubkey {
+            obj.insert(
+                "pubkey".to_string(),
+                serde_json::Value::String(pubkey_hex.to_string()),
+            );
+        }
+    }
+
+    serde_json::from_value::<nostr_core::types::Event>(value).map_err(|e| e.to_string())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const PK: &str = "3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d";
+
+    #[test]
+    fn injects_pubkey_when_missing() {
+        // Exactly what the JS shim sends for a kind-1 post.
+        let body = r#"{"kind":1,"content":"Hello world","tags":[],"created_at":1700000000}"#;
+        let event = parse_unsigned_event(body, PK).expect("should parse");
+        assert_eq!(event.pubkey.to_hex(), PK);
+        assert_eq!(event.content, "Hello world");
+        assert_eq!(event.kind.as_u64(), 1);
+        assert_eq!(event.created_at, 1700000000);
+    }
+
+    #[test]
+    fn preserves_explicit_pubkey() {
+        let other = "0000000000000000000000000000000000000000000000000000000000000001";
+        let body = format!(
+            r#"{{"pubkey":"{}","kind":1,"content":"x","tags":[],"created_at":1}}"#,
+            other
+        );
+        let event = parse_unsigned_event(&body, PK).expect("should parse");
+        assert_eq!(event.pubkey.to_hex(), other);
+    }
+
+    #[test]
+    fn parses_tags_and_imeta() {
+        let body = r#"{"kind":1,"content":"hi","tags":[["imeta","url https://example.com/a.png"]],"created_at":5}"#;
+        let event = parse_unsigned_event(body, PK).expect("should parse");
+        assert_eq!(event.tags.len(), 1);
+        assert_eq!(event.tags[0].0[0], "imeta");
+    }
+
+    #[test]
+    fn rejects_invalid_json() {
+        assert!(parse_unsigned_event("not json", PK).is_err());
+    }
+
+    /// Round-trip the NIP-44 base64 encoding the bridge uses.
+    ///
+    /// The JS shim sends the ciphertext as a base64 string; the bridge must
+    /// base64-decode it before handing raw bytes to the signer, and must
+    /// base64-encode the signer's raw output before returning it. This test
+    /// exercises that exact path with two real local signers.
+    #[test]
+    fn nip44_base64_round_trip() {
+        use nostr_signer::local::LocalSigner;
+        use nostr_signer::traits::NostrSigner;
+
+        let (sk_a, pk_a) = nostr_core::crypto::keys::generate_keypair();
+        let (sk_b, pk_b) = nostr_core::crypto::keys::generate_keypair();
+        let signer_a = LocalSigner::new(sk_a).expect("signer a");
+        let signer_b = LocalSigner::new(sk_b).expect("signer b");
+
+        let plaintext = "Hello, giftwrap!";
+
+        // Encrypt as A→B, then base64-encode (what the bridge returns).
+        let raw_ct = signer_a.nip44_encrypt(&pk_b, plaintext).expect("encrypt");
+        let b64_ct = nostr_core::util::base64_encode(&raw_ct);
+
+        // The base64 string must not be valid raw ciphertext bytes — this is
+        // exactly the bug: passing the ASCII of the base64 text to the signer
+        // fails. Decoding first must succeed.
+        let decoded = nostr_core::util::base64_decode(&b64_ct).expect("decode");
+        assert_eq!(decoded, raw_ct);
+
+        // Decrypt as B←A using the decoded raw bytes.
+        let decrypted = signer_b.nip44_decrypt(&pk_a, &decoded).expect("decrypt");
+        assert_eq!(String::from_utf8(decrypted).unwrap(), plaintext);
+    }
+}
+
 fn respond_json(request: &URISchemeRequest, json: &str) {
     let body = json.to_string().into_bytes();
     let stream = MemoryInputStream::from_bytes(&Bytes::from_owned(body.clone()));

src/nostr_inject.rs

@@ -188,19 +188,22 @@ pub fn nostr_inject_create_content_manager_with_probe(tab_index: i32) -> UserCon
     manager.add_script(&script);
 
     // Perf probe preamble (skips sovereign:// pages, sets tab index).
+    // Top frame only — mirrors the C version (perf_probe.c:67). Injecting
+    // into all frames would run a separate probe instance (with its own
+    // rAF loop and 1s sync XHR) in every iframe.
     let preamble = UserScript::new(
         &perf_probe_preamble(tab_index),
-        UserContentInjectedFrames::AllFrames,
+        UserContentInjectedFrames::TopFrame,
         UserScriptInjectionTime::Start,
         &[],
         &[],
     );
     manager.add_script(&preamble);
 
-    // Perf probe body.
+    // Perf probe body (top frame only — see above).
     let probe = UserScript::new(
         PERF_PROBE_JS,
-        UserContentInjectedFrames::AllFrames,
+        UserContentInjectedFrames::TopFrame,
         UserScriptInjectionTime::Start,
         &[],
         &[],

src/settings.rs

@@ -38,6 +38,12 @@ pub struct BrowserSettings {
     pub enable_smooth_scrolling: bool,
     pub enable_accelerated_2d_canvas: bool,
     pub enable_write_console_messages_to_stdout: bool,
+    /// Per-tab performance probe injection. OFF by default: the probe
+    /// patches addEventListener/setTimeout/setInterval/XHR and runs a
+    /// permanent rAF loop, which adds enough main-thread overhead to
+    /// break scrolling on listener-heavy pages. Mirrors the C default
+    /// (settings.c:136).
+    pub perf_probe_enabled: bool,
 }
 
 impl Default for BrowserSettings {
@@ -69,7 +75,12 @@ impl Default for BrowserSettings {
             enable_media_source: true,
             enable_smooth_scrolling: true,
             enable_accelerated_2d_canvas: true,
+            // Console-to-stdout is OFF by default: the browser's stdout is
+            // usually a terminal, where writes are slow and can block the
+            // WebProcess. Enable only when debugging.
             enable_write_console_messages_to_stdout: false,
+            // Perf probe OFF by default (see field docs).
+            perf_probe_enabled: false,
         }
     }
 }
@@ -122,6 +133,12 @@ pub fn settings_update(json: &serde_json::Value) {
     if let Some(v) = json.get("theme_dark").and_then(|v| v.as_bool()) {
         settings.theme_dark = v;
     }
+    if let Some(v) = json.get("perf_probe_enabled").and_then(|v| v.as_bool()) {
+        settings.perf_probe_enabled = v;
+    }
+    if let Some(v) = json.get("enable_write_console_messages_to_stdout").and_then(|v| v.as_bool()) {
+        settings.enable_write_console_messages_to_stdout = v;
+    }
 }
 
 /// Load settings from the database.
@@ -149,6 +166,8 @@ pub fn settings_save() {
         "agent_port": settings.agent_port,
         "session_restore": settings.session_restore,
         "theme_dark": settings.theme_dark,
+        "perf_probe_enabled": settings.perf_probe_enabled,
+        "enable_write_console_messages_to_stdout": settings.enable_write_console_messages_to_stdout,
     });
 
     if let Ok(json_str) = serde_json::to_string(&json) {

src/tab_manager.rs

@@ -218,8 +218,16 @@ pub fn tab_manager_new_tab(notebook: &gtk::Notebook, ctx: &WebContext, url: Opti
     state.active_tab_id = tab_id;
     drop(state);
 
-    // Create the webview with perf probe injected (tab index baked into preamble).
+    // Create the webview. The perf probe is injected only when explicitly
-    let content_manager = crate::nostr_inject::nostr_inject_create_content_manager_with_probe(tab_id);
+    // enabled: it patches addEventListener/setTimeout/setInterval/XHR and
+    // runs a permanent rAF loop, which adds enough main-thread overhead to
+    // break scrolling on listener-heavy pages. Mirrors the C gate
+    // (tab_manager.c:1349). Default OFF.
+    let content_manager = if s.perf_probe_enabled {
+        crate::nostr_inject::nostr_inject_create_content_manager_with_probe(tab_id)
+    } else {
+        crate::nostr_inject::nostr_inject_create_content_manager()
+    };
     let webview = WebView::builder()
         .user_content_manager(&content_manager)
         .web_context(ctx)

src/version.rs

@@ -1,7 +1,7 @@
 //! Version information for sovereign_browser
 
 /// The current version of sovereign_browser (with leading 'v').
-pub const VERSION: &str = "v0.0.6";
+pub const VERSION: &str = "v0.0.7";
 
 /// Major version number.
 pub const VERSION_MAJOR: u32 = 0;
@@ -10,4 +10,4 @@ pub const VERSION_MAJOR: u32 = 0;
 pub const VERSION_MINOR: u32 = 0;
 
 /// Patch version number.
-pub const VERSION_PATCH: u32 = 6;
+pub const VERSION_PATCH: u32 = 7;

src/web_context.rs

@@ -50,8 +50,11 @@ pub fn web_context_configure_settings(settings: &webkit2gtk::Settings) {
     // Deprecated since 2.32 with no replacement; keep for explicitness.
     #[allow(deprecated)]
     settings.set_enable_accelerated_2d_canvas(true);
-    // Enable console messages to stdout so we can debug window.nostr injection
+    // Console-to-stdout is OFF by default. The browser's stdout is usually a
-    // and page-level issues. The C version connects to console-message signal;
+    // terminal, where writes are slow and can block the WebProcess; on a
-    // this is simpler for now.
+    // chatty page this is a real CPU cost. Enable via the
-    settings.set_enable_write_console_messages_to_stdout(true);
+    // `enable_write_console_messages_to_stdout` setting when debugging.
+    settings.set_enable_write_console_messages_to_stdout(
+        crate::settings::settings_get().enable_write_console_messages_to_stdout,
+    );
 }

www/settings.html

@@ -145,6 +145,17 @@
          onclick="toggle('universal_access')"></div>
   </div>
 
+  <div class="setting">
+    <div>
+      <div class="setting-name">Performance Probe</div>
+      <div class="setting-desc">Per-tab CPU/FPS instrumentation. Adds main-thread
+        overhead (patches timers, listeners, XHR; runs a rAF loop). Off by
+        default. Takes effect on new tabs.</div>
+    </div>
+    <div class="toggle" data-feature="perf_probe_enabled"
+         onclick="toggle('perf_probe_enabled')"></div>
+  </div>
+
   <div class="setting">
     <div><div class="setting-name">CORS Enforcement</div></div>
     <div class="toggle off" style="opacity:0.5"></div>

www/settings.js

@@ -49,7 +49,8 @@ function applyConfig(d) {
     agent_server_enabled: d.agent_server_enabled,
     dev_extras: d.dev_extras,
     file_access: d.file_access,
-    universal_access: d.universal_access
+    universal_access: d.universal_access,
+    perf_probe_enabled: d.perf_probe_enabled
   };
   document.querySelectorAll('.toggle[data-feature]').forEach(function(el) {
     var key = el.getAttribute('data-feature');