Files
nak/publish.go

308 lines
8.2 KiB
Go

package main
import (
"context"
"fmt"
"io"
"os"
"strings"
"fiatjaf.com/nostr"
"fiatjaf.com/nostr/sdk"
"github.com/urfave/cli/v3"
)
var publish = &cli.Command{
Name: "publish",
Usage: "publishes a note with content from stdin or argument",
Description: `reads content and publishes it as a note, optionally as a reply to another note.
Either pipe content or pass it as the first argument.
example:
echo "hello world" | nak publish
nak publish "hello world"
echo "I agree!" | nak publish --reply nevent1...
nak publish -t t=mytag -t e=someeventid "tagged post"`,
DisableSliceFlagSeparator: true,
Flags: combineFlags([][]cli.Flag{},
&cli.StringSliceFlag{
Name: "relay",
Aliases: []string{"r"},
Usage: "also publish to these relays",
},
&cli.StringFlag{
Name: "reply",
Usage: "event id, naddr1 or nevent1 code to reply to",
},
&cli.StringFlag{
Name: "comment",
Usage: "event id, naddr1 or nevent1 code to comment on (NIP-22 kind 1111, takes precedence over --reply)",
},
&cli.StringSliceFlag{
Name: "tag",
Aliases: []string{"t"},
Usage: "sets a tag field on the event, takes a value like -t e=<id> or -t sometag=\"value one;value two;value three\"",
},
&NaturalTimeFlag{
Name: "created-at",
Aliases: []string{"time", "ts"},
Usage: "unix timestamp value for the created_at field",
DefaultText: "now",
Value: nostr.Now(),
},
&cli.BoolFlag{
Name: "nevent",
Usage: "print the nevent code (to stderr) after the event is published",
Category: CATEGORY_EXTRAS,
},
&cli.BoolFlag{
Name: "confirm",
Usage: "ask before publishing the event",
Category: CATEGORY_EXTRAS,
},
),
Action: func(ctx context.Context, c *cli.Command) error {
var content []byte
if isPiped() {
var err error
content, err = io.ReadAll(os.Stdin)
if err != nil {
return fmt.Errorf("failed to read from stdin: %w", err)
}
} else if firstArg := c.Args().First(); firstArg != "" {
content = []byte(firstArg)
} else {
return fmt.Errorf("no content. pipe or pass content as argument.")
}
evt := nostr.Event{
Kind: 1,
Content: strings.TrimSpace(string(content)),
Tags: make(nostr.Tags, 0, 4),
CreatedAt: nostr.Now(),
}
// handle timestamp flag
if c.IsSet("created-at") {
evt.CreatedAt = getNaturalDate(c, "created-at")
}
// handle reply/comment flag
// --comment takes precedence over --reply
target := c.String("comment")
isComment := c.IsSet("comment")
if target == "" {
target = c.String("reply")
}
var replyRelays []string
if target != "" {
replyEvent, relayHints, err := sys.FetchSpecificEventFromInput(ctx, target, sdk.FetchSpecificEventParameters{})
if err != nil {
return fmt.Errorf("failed to fetch reply target event: %w", err)
}
if isComment || replyEvent.Kind != 1 {
// NIP-22 comment
evt.Kind = 1111
buildNIP22Tags(&evt, replyEvent, relayHints)
} else {
// NIP-10 reply
if replyEvent.Kind != 1 {
evt.Kind = 1111
evt.Tags = append(evt.Tags, nostr.Tag{"K", fmt.Sprint(replyEvent.Kind)})
}
// add reply tags per NIP-10
rootID := ""
rootRelay := ""
for _, tag := range replyEvent.Tags {
if len(tag) >= 2 && tag[0] == "e" {
if len(tag) >= 4 && tag[3] == "root" {
rootID = tag[1]
if len(tag) >= 3 {
rootRelay = tag[2]
}
break
}
if rootID == "" {
rootID = tag[1]
if len(tag) >= 3 {
rootRelay = tag[2]
}
}
}
}
if rootID == "" {
// replying to root event
evt.Tags = append(evt.Tags,
nostr.Tag{"e", replyEvent.ID.Hex(), "", "root"},
)
} else {
// replying to a reply
evt.Tags = append(evt.Tags,
nostr.Tag{"e", rootID, rootRelay, "root"},
nostr.Tag{"e", replyEvent.ID.Hex(), "", "reply"},
)
}
evt.Tags = append(evt.Tags,
nostr.Tag{"p", replyEvent.PubKey.Hex()},
)
}
replyRelays = sys.FetchInboxRelays(ctx, replyEvent.PubKey, 3)
}
// handle other tags -- copied from event.go
tagFlags := c.StringSlice("tag")
for _, tagFlag := range tagFlags {
// tags are in the format key=value
tagName, tagValue, found := strings.Cut(tagFlag, "=")
tag := []string{tagName}
if found {
// tags may also contain extra elements separated with a ";"
tagValues := strings.Split(tagValue, ";")
tag = append(tag, tagValues...)
}
evt.Tags = append(evt.Tags, tag)
}
// process the content
targetRelays := sys.PrepareNoteEvent(ctx, &evt)
// connect to all the relays (like event.go)
kr, _, err := gatherKeyerFromArguments(ctx, c)
if err != nil {
return err
}
pk, err := kr.GetPublicKey(ctx)
if err != nil {
return fmt.Errorf("failed to get our public key: %w", err)
}
relayUrls := sys.FetchWriteRelays(ctx, pk)
relayUrls = nostr.AppendUnique(relayUrls, targetRelays...)
relayUrls = nostr.AppendUnique(relayUrls, replyRelays...)
relayUrls = nostr.AppendUnique(relayUrls, c.StringSlice("relay")...)
relays := connectToAllRelays(ctx, c, relayUrls)
if len(relays) == 0 {
if len(relayUrls) == 0 {
return fmt.Errorf("no relays to publish this note to.")
} else {
return fmt.Errorf("failed to connect to any of [ %v ].", relayUrls)
}
}
// sign the event
if err := kr.SignEvent(ctx, &evt); err != nil {
return fmt.Errorf("error signing event: %w", err)
}
// print
stdout(evt.String())
// publish (like event.go)
return publishFlow(ctx, c, kr, evt, relays)
},
}
func buildNIP22Tags(evt *nostr.Event, target *nostr.Event, relayHints []string) {
var relayHint string
if len(relayHints) > 0 {
relayHint = relayHints[0]
}
dtag := func() string {
for _, tag := range target.Tags {
if len(tag) >= 2 && tag[0] == "d" {
return tag[1]
}
}
return ""
}
// find root scope in target's uppercase NIP-22 tags
var rootScopeName, rootScopeValue, rootScopeRelay, rootKind, rootPubkey string
for _, tag := range target.Tags {
if len(tag) >= 2 && (tag[0] == "E" || tag[0] == "A" || tag[0] == "I") {
rootScopeName = tag[0]
rootScopeValue = tag[1]
if len(tag) >= 3 {
rootScopeRelay = tag[2]
}
break
}
}
if rootScopeName != "" {
for _, tag := range target.Tags {
if len(tag) >= 2 && tag[0] == "K" {
rootKind = tag[1]
break
}
}
for _, tag := range target.Tags {
if len(tag) >= 2 && tag[0] == "P" {
rootPubkey = tag[1]
break
}
}
} else {
if target.Kind.IsAddressable() || target.Kind.IsReplaceable() {
rootScopeName = "A"
rootScopeValue = fmt.Sprintf("%d:%s:%s", target.Kind, target.PubKey.Hex(), dtag())
} else {
rootScopeName = "E"
rootScopeValue = target.ID.Hex()
}
rootScopeRelay = relayHint
rootKind = fmt.Sprint(target.Kind)
rootPubkey = target.PubKey.Hex()
}
// root scope tag
rootScopeTag := nostr.Tag{rootScopeName, rootScopeValue}
if rootScopeName == "E" && rootPubkey != "" {
// the pubkey goes in the 4th position, so the relay hint must be
// present (even if empty) to keep it there
rootScopeTag = append(rootScopeTag, rootScopeRelay, rootPubkey)
} else if rootScopeRelay != "" {
rootScopeTag = append(rootScopeTag, rootScopeRelay)
}
evt.Tags = append(evt.Tags, rootScopeTag)
if rootKind != "" {
evt.Tags = append(evt.Tags, nostr.Tag{"K", rootKind})
}
if rootPubkey != "" && rootScopeName != "I" {
evt.Tags = append(evt.Tags, nostr.Tag{"P", rootPubkey})
}
// parent tags (lowercase) - always reference the target event
if target.Kind.IsAddressable() || target.Kind.IsReplaceable() {
aValue := fmt.Sprintf("%d:%s:%s", target.Kind, target.PubKey.Hex(), dtag())
aTag := nostr.Tag{"a", aValue}
if relayHint != "" {
aTag = append(aTag, relayHint)
}
evt.Tags = append(evt.Tags, aTag)
}
eTag := nostr.Tag{"e", target.ID.Hex()}
if target.PubKey != (nostr.PubKey{}) {
// same here: keep the pubkey in the 4th position
eTag = append(eTag, relayHint, target.PubKey.Hex())
} else if relayHint != "" {
eTag = append(eTag, relayHint)
}
evt.Tags = append(evt.Tags, eTag)
evt.Tags = append(evt.Tags, nostr.Tag{"k", fmt.Sprint(target.Kind)})
pTag := nostr.Tag{"p", target.PubKey.Hex()}
if relayHint != "" {
pTag = append(pTag, relayHint)
}
evt.Tags = append(evt.Tags, pTag)
}