deps: move to bridge 0.19.0

[jlucaso1]

Summary

Bridge 0.19.0 is one fix and a set of engine work below the surface. The fix is the reason to take it: whatsapp-rust#1352, reported here as a bot answering the same message two or three times.

What landed

A sender's resend no longer becomes a second messages.upsert. When a sender's network is bad their client re-runs its own outbox: same message id, fresh ciphertext on a new ratchet iteration. The Signal ratchet calls a repeat a duplicate only when the same iteration comes back — which covers the byte-identical stanza the server replays and nothing else — so every resend decrypted cleanly and was handed over as another message. The engine now recognises the repeat by message identity and hands it over once, acking the rest.

It was reported by an operator whose bot replied three times to one ping, intermittently and only for some senders. The engine's own production logs put it at 0.33% to 1.0% of group message ids, with up to six deliveries of a single id, and the same repeated ids appear in two different bots' logs — which places the resend at the sender, not in any client.

Worth knowing about the shape of the fix, because it decides what is still open:

• The window is in-memory and short-lived (five minutes, sized against the measured resend interval), so a sender still retrying across a restart of your process delivers twice.
• The identity is (chat, id, sender), not (chat, id). That is not caution for its own sake: the same logs caught two different participants of one group using the same 32-character id, 116 seconds apart. Keying without the sender would have dropped the second person's message.
• What is suppressed is the event. A message secret the resend carried is still captured, and an app-state key-share request it carried is still scheduled, so nothing that the resend was also delivering is lost with it.

PN/LID pairs are now harvested from conversation metadata during history sync, from a source that was previously read past, so the mapping fills in from more of what already arrives. The same engine change stops logging push names — a display name, and therefore PII. A consumer that greps the engine's logs for them will no longer find them.

Engine performance, all below the bridge's surface and none of it changing what crosses: media upload/download batch crypto with in-place decryption, history-sync LID mappings, tctoken candidates, group secret allocations, usync query building, prekey extraction and sender key allocations.

Surface

Unchanged. Diffing the shipped declarations between 0.18.0 and 0.19.0, the only file that moves is whatsapp_rust_bridge.d.ts and the only change in it is six renumbered __wasm_bindgen_func_elem_* internals. index.d.ts, proto-types.d.ts, proto.d.ts, proto-namespace.d.ts, proto-reader.d.ts and wire-info.d.ts are byte-identical, which is expected: the engine range touches no waproto, no .proto and no generated catalog.

So there is no adapter here to update, and no audit to re-baseline.

Not carried

• VoIP. The engine range renames CallHandle::hangup to hangup_local and makes set_muted async and fallible — a real break upstream of us that reaches nothing, because the bridge compiles no VoIP surface.
• The chat store moved to its own repository in the same range. Nothing here referenced it.
• The gate's controls. The engine exposes a cache knob for the suppression window (capacity 0 turns it off) and two counters that say what it did — messages_suppressed_duplicate and the cache occupancy. The bridge surfaces none of the three, so from here the window cannot be tuned or disabled, and a host cannot tell "a message went missing" apart from "the engine collapsed a resend". Flagged in bridge#86 rather than decided inside a bump; exposing it is a change of its own.

Compatibility

Behaviour only, and it is a deliberate divergence from upstream: upstream Baileys emits one messages.upsert per wire delivery, so it answers a resent message as many times as the sender sent it. This package now emits one. A consumer counting deliveries will see fewer; a consumer answering messages will answer once, which is the point.

Nothing changes about what a caller passes or receives, no method was renamed, no event payload changed shape.

The README's Gotchas — the list of behaviours that differ from upstream — gains a bullet for it, including the restart gap and the standing advice that a handler with side effects should key them on key.id regardless. That advice was already the right one before this change and remains the thing that closes the gap this leaves.

Validation

Nothing run locally. The bump is a lockfile change plus a README bullet, the bridge declarations were diffed rather than trusted (see Surface), and npm test, npm run lint, npm run format:check and npm run build all run on this PR.

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Summary by cubic

Bumps @oxidezap/whatsapp-rust-bridge from 0.18.0 to 0.19.0, fixing a bug where a sender's resend was delivered as multiple messages.upsert events — a bot answering messages could respond two or three times to one message.

• Resends (same message id, fresh ciphertext) are now recognized and emitted once; upstream Baileys still emits per wire delivery, so this is a deliberate divergence.
• The dedupe window is in-memory for five minutes and keyed by (chat, id, sender), so a retry spanning a process restart still delivers twice, and two participants reusing an id in one group are not collapsed.
• Only the event is suppressed — a resend's message secret and app-state key-share request are still captured.
• The engine also stops logging push names (PII) and harvests PN/LID pairs from conversation metadata; both are behavior-only changes.
• The declared surface is unchanged — the .d.ts diff is just renumbered __wasm_bindgen_func_elem_* internals — so this PR is a version bump plus a README Gotchas bullet, which now advises keying side effects on the whole key (remoteJid, id, fromMe, participant) rather than id alone.

^{Written for commit a3d750a. Summary will update on new commits.}

Summary by CodeRabbit

• Bug Fixes

  • Re-sent messages are now reported as a single message event instead of generating duplicate events during repeated delivery.
  • Duplicate detection applies within a five-minute window, improving message processing consistency.

• Documentation

  • Added guidance explaining repeated-message handling and recommending message IDs as the safe way to identify messages.

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[coderabbitai]

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📝 Walkthrough

Walkthrough

The bridge dependency updates to version 0.19.0. The README documents five-minute in-memory deduplication for repeated messages and recommends using key.id for handler keys.

Changes

Bridge update

Layer / File(s)	Summary
Bridge version and deduplication documentation package.json, README.md	The bridge dependency updates from 0.18.0 to 0.19.0. The README documents one messages.upsert event for repeated deliveries with the same key.id.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: 🔵 Low · up to 6caac

The update correctly collapses sender resends, but the README still advises using only the message ID for side effects even though different participants can share an ID. That guidance should include the chat and sender to avoid suppressing a legitimate message; the PR is otherwise mergeable with explicit owner awareness.

Poem

A rabbit checks the bridge with care
One message hops through once, not spare
Five minutes guard the message key
key.id keeps handlers safe and free
The README marks the trail for me

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: updating the bridge dependency to version 0.19.0.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (2 skipped: 2 unsupported.)

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[greptile-apps]

Greptile Summary

The PR upgrades @oxidezap/whatsapp-rust-bridge from 0.18.0 to 0.19.0 and documents the bridge’s new resend-suppression behavior.

• Pins bridge 0.19.0 consistently in the package manifest and lockfile.
• Updates the Gotchas guidance to scope side-effect idempotency by the full message key rather than key.id alone.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains.

Important Files Changed

Filename	Overview
README.md	Documents resend deduplication and now correctly scopes idempotency across chat, direction, and participant identity.
package.json	Updates the direct bridge dependency from 0.18.0 to 0.19.0.
package-lock.json	Locks bridge 0.19.0 with matching registry metadata and integrity data.

_{Reviews (2): Last reviewed commit: "docs(readme): scope the idempotency key ..." | Re-trigger Greptile}

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Actionable comments posted: 1

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Inline comments:
In `@README.md`:
- Around line 246-254: Update the side-effect deduplication guidance in the
README to key messages by the composite `(key.remoteJid, key.id,
key.participant)` rather than `key.id` alone, preserving the existing retry and
restart-window explanation.

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Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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