Commit Graph

3 Commits

Author SHA1 Message Date
Will Pfleger
52c4c08c9e fix(sidebar): converge stale-at-open state across devices (sections/sort/stars/mutes) (#7805)
Adds bounded-backoff recovery reads to all four sidebar sync hooks
(sections, sort, stars and mutes). A stale relay read at app open now
converges without a user edit or a reconnect.

## What this does

**Shared recovery hook (`useStaleReaderRecovery`).** All four hooks use
one retry effect. It reads immediately on mount, then at 5, 10, 30 and
60 s, staying at 60 s after that. A change of `visibilityState` to
`visible` triggers an immediate read. Reads are single-flight. The
effect restarts whenever `pubkey` or `relayUrl` changes, so a hook that
stays mounted while switching relays drops the old relay's in-flight
reads.

**Guards that stop a recovery read from rolling back a local edit:**

1. **Skip the read while an edit is pending.** If an edit is pending
when a tick starts, the tick skips its read and just schedules the next
one. Without this, the read could return the pre-edit blob after the
edit published and pending cleared. At that point neither apply-time
guard could reject it.
2. **Pending check inside the state updater.** `hasPending()` and the
effect lifetime are re-read inside `setStore(prev => ...)`. That way the
check runs when React executes the updater, not when the response
arrives.
3. **Local-mutation revision.** Each hook counts its local edits. The
count is snapshotted when a read starts and checked again at apply time.
If an edit landed while the read was in flight, the response is
discarded.
4. **Head advanced only after a successful cache write.** A failed
`write*Store()` leaves the same head retryable on the next tick.

**Ownership-aware pending clear.** Each sync manager's
`doPublish(store)` now clears `pendingStore` only while it still holds
that same `store`, on both the identical-payload early return and the
success path. Before, an older publish that finished after a newer edit
had replaced `pendingStore` wiped the newer edit's pending marker, so a
recovery read before the newer debounce could apply the older relay head
over it. `destroy()` still clears unconditionally.

## Scope

Reader-side recovery plus the ownership-aware pending clear. No
outboxes, arbitration or replay changes. It applies to
`useChannelSections`, `useChannelSortPreference`, `useChannelStars` and
`useChannelMutes`.

Related: [#7806](https://github.com/block/buzz/pull/7806)

---------

Signed-off-by: Will Pfleger <pfleger.will@gmail.com>
Signed-off-by: Duncan <dcfd242e557282d7a1e2cf2e6877522682f1e5c6156dc92ca7d90eaedd3b0f95@buzz.block.builderlab.xyz>
Co-authored-by: Duncan <dcfd242e557282d7a1e2cf2e6877522682f1e5c6156dc92ca7d90eaedd3b0f95@buzz.block.builderlab.xyz>
2026-09-28 12:48:16 -06:00
Wes
f3408fc620 fix(desktop): isolate quota backoff and reuse channel discovery rosters (#6998)
Pinky, an AI agent, is updating this PR on Wes's behalf.

## Targeted repair, not a startup rewrite

This replaces the previous readiness/replay candidate. Current head:
**`83ac81ff6ae439b0e68f4a3dafd4b2af6dbadcdb`**, two independent commits
on main base `3c7f288c60d67df78577b237e27c3dfc8831aaa1`:

1. **`0b6681de2` — keep quota backoff on its transport.** HTTP 429s
retain native HTTP backoff without arming the renderer WebSocket gate.
WebSocket quota/concurrency CLOSED retains its retry deadline without
damping HTTP's separate quota. The explicit `rate-limited: shared
admission unavailable` signal still damps HTTP too. Reuse existing
all-channel live streams for Home mention invalidation instead of a
second per-channel mention subscription; retain kind, recipient, self,
membership, replay-deduplication, notification and unread boundaries.
2. **`83ac81ff6` — reuse complete membership rosters within each channel
fetch.** Discovery already returns full paginated rosters. Retain those
results and request only uncovered directory/pending-owner channel IDs.
Skip empty fallback filters and preserve covered counts/pubkeys if that
tolerant fallback fails. The next fetch reads current membership again;
there is no persistent cache or new invalidation state.

No send-route, AUTH-readiness, replay-ordering, scheduler, pacing, relay
policy, dependency, or authorization changes. Refresh triggers and
activity batching stay unchanged. Independent tracing did not establish
a safe-to-delete duplicate normal-startup refresh; recovery
invalidations at different replay stages are not interchangeable.

**Size:** 18 files, +1,066/-350 overall; nine production paths +76/-205
(**129 fewer production lines**). The roster follow-up itself touches
only `fetch.rs` (+31/-14) and its new 378-line regression file. Test
bulk is not new startup machinery.

## Comparative roster measurement

Actual native HTTP fetch code against a synthetic Axum loopback fixture:
265 channels × 100 members, deterministic signed events, debug build.
Seven iterations per condition; medians below exclude the first warm-up.
Baseline is `0b6681de2` production fetch, candidate is `83ac81ff6`
production fetch, with the same temporary benchmark harness.

| Measure | Baseline | Candidate |
| --- | ---: | ---: |
| HTTP reads per fetch | 7 | 6 |
| JSON response-body bytes per fetch | 4,803,136 | 2,453,380 |
| Median, no artificial request delay | 262.9 ms | 149.3 ms |
| Median, 25 ms artificial delay per request | 376.7 ms | 282.7 ms |

Channel/member assertions and output hash (`fa7cc551bc855e4d`) match
throughout. This removes **one batched roster request**, not 265
requests. The measured ~43%/~25% reductions describe this large-roster
synthetic fixture, **not production startup latency**. Activity requests
run concurrently with roster enrichment, so real savings vary. Counts
now use the discovery snapshot rather than a later reread within that
same non-atomic fetch.

## Verification

At pushed head **`83ac81ff6`**:

- All enabled pre-push gates passed without bypass: `push-head-scope`,
`branch-skew`, `desktop-check`, `file-size-check`, `desktop-typecheck`,
`desktop-test`, `desktop-tauri-checks` (native fmt/Clippy/tests).
- Full Desktop frontend suite: **6,457 passed**, zero failures; separate
tooling suite: **10 passed**.
- Full native Desktop workspace: **3,276 passed**, zero failures, 20
ignored, across unit/integration/doc bins. The main native lib accounts
for 3,175 passed / 19 ignored; this is not 3,276 lib tests.
- `pnpm build` passed the protected-feature artifact matrix; `pnpm
build:e2e` also passed. Existing chunk-size/dynamic-import warnings
remain. No full repository `just ci` run locally.
- **130 selected headless mock-bridge smoke cases passed across two
runs**: messaging, reconnect, reconnect affordances, inbox live updates,
sidebar snapshots, send-channel binding, boot splash. The first
invocation hit the shell's 300-second limit after 117 passes and no
failures; all remaining 13 passed in a separate invocation. This is not
a claim the interrupted invocation completed.
- Six new tests invoke production `fetch_channels` through the real
native HTTP client and cover 265/501-channel pagination (including
same-timestamp continuation), exact requests, complete/deduplicated
rosters, directory/pending fallback, hidden DMs, repeated
membership/identity/relay changes, empty lists and errors.
- Falsification in an isolated source copy: restoring the redundant
baseline fetch fails four roster regressions; removing missing-roster
fallback fails two. Restored candidate passes all six. Earlier transport
mutations fail HTTP→WS coupling, WS→HTTP coupling, omitted shared-outage
damping and duplicate-mention regressions. No mutation was applied to
the committed worktree.
- Brain's independent static reviews found no blockers in the transport
repair or immutable roster patch. Source tracing confirms relay
discovery serializes complete rosters, not projected matching p-tags.
This was source review, not independent test execution or approval.

### Hosted CI

[CI run
34185670504](https://github.com/block/buzz/actions/runs/34185670504)
**completed successfully** for this head. GitHub checked out merge ref
`25bcf09627e129887481d4441a1af3c6cb0af1ff`; its Git tree is identical to
`83ac81ff6` (`49a01f3c2ebf4e547bbe3cd31406f984ac6cefe8`), verified
through the GitHub Git API. The final PR rollup has 33 successful checks
and 28 skipped, with none failing or pending.

- Desktop Core passed frontend/native suites and compiled-feature
verification. Windows Rust tests, Windows Desktop build, macOS
`.app`/`.dmg` build, all four smoke shards and both relay-backed E2E job
shards passed, as did Rust lint, DCO, Semgrep and zizmor.
- Browser job totals: **1,620 passed, 13 flaky cases passing automatic
retry #1, five skipped, zero terminal failures**. Smoke accounts for
1,389 passed / 12 flaky / three skipped; integration jobs report 231
passed / one flaky / two skipped. No manual CI reruns or source changes
to obtain green.
- The retries cover channel-browser, empty-edit, huddle menu,
runtime-install, overscroll, onboarding avatar, video attachment and
workflow UI assertions. They are disclosed, not collectively declared
unrelated. The video case reaches the changed real TS all-channel hook
despite mocking native I/O: independent tracing found no regression
mechanism or blocker, but the missing second-video player remains
**unexplained**, and an indirect timing effect is not excluded. The
self-authored, unmentioned event cannot use either the new mention
branch or the removed old mention handler as a delivery path. A passing
retry does not diagnose its cause.
- The separate “Desktop Release Candidate” check skipped its validation
step; it is not additional release validation. Codex security review was
skipped, not passed.

## Remaining acceptance limits

Wes's earlier manual trial of the transport-only candidate reported
improvement; relay readback found both a top-level message and a thread
reply. That was not a fingerprinted or timed trial of the new roster
commit. The remaining few-second top-level send wait is
**unattributed**, and this PR does not claim to resolve every startup
delay.

No visible app launch, relaunch, laptop input automation, or production
test messages during this follow-up. Local native tests use fixtures;
browser suites do not run the Tauri backend. CI building an app does not
validate bundled macOS alerts or inactive-channel notification delivery.
Those bundled real-workflow checks remain outstanding. No visual UI
changes or screenshots; no approval or merge performed.

Originating conversation:
buzz://message?channel=5b130804-d759-40ad-a564-d64cc907fa8e&id=cb432417e290e06a1842639cfe0268f9d43d186defbcb59260930d129a26af83

---------

Signed-off-by: Pinky <5f5ab050ec58ae208332edd544ebf705221e24c1b86d82a6ca07038a7a8f6ac9@buzz.block.builderlab.xyz>
Co-authored-by: Pinky <5f5ab050ec58ae208332edd544ebf705221e24c1b86d82a6ca07038a7a8f6ac9@buzz.block.builderlab.xyz>
2026-09-11 09:11:39 -06:00
Wes
2f3dd850db fix(relay): reject a frame on its own acknowledgement channel (#6961)
Pinky, an AI agent, updated this description on Wes's behalf after
taking over the startup investigation.

**Category:** fix

**User Impact:** An EVENT refused by WebSocket admission or handler
saturation receives a correlated `OK(event_id, false, reason)` instead
of an uncorrelated NOTICE, so the client can settle that refusal without
waiting for its publish timeout. Rate-limited refusals also arm client
backoff. This fixes a protocol failure mechanism; it does not establish
that every startup send will succeed or that the reported Desktop
startup incident is fully resolved.

**Problem:** Startup opens several live subscriptions and publishes at
once, and the relay's WebSocket admission gate is a fixed 5-second
window (`ws_admission_budget` = `human_ws_events_per_sec * 5`). If that
shared per-principal quota is exhausted, `enforce_ws_admission`
previously rejected an EVENT with a bare `["NOTICE", reason]`. Quota
pressure is a possible trigger, not proof of the original incident's
complete cause.

A NOTICE carries no event id. Both clients settle a pending publish
*only* from an `OK` keyed by event id (desktop `pendingEvents`, mobile
`_pendingEvents`), so nothing settled — and `handle_text_message`
returns early, so no `OK` ever followed either. The send **could not
fail**; it could only time out at `PUBLISH_TIMEOUT_MS` = 25s. That
explains how this rejection mechanism can produce a roughly 25-second
timeout; attributing the original report to it still requires the actual
startup/send workflow.

The handler-semaphore saturation path had the identical defect, and that
one needs no quota burst to fire.

**Solution:** NIP-01 gives each request type its own acknowledgement
channel, and a rejection is only actionable on the same one. Reject a
REQ with `CLOSED`, an EVENT with `OK(id, false, reason)`, and fall back
to `NOTICE` only where no per-request correlation exists. COUNT refusals
now also use `CLOSED(query_id, reason)` per NIP-45, covering both quota
admission and handler saturation (added in
`cd12c93804b87a24b61075dfd171dc471a0a527f`).

Reason strings are unchanged, so the `rate-limited:` prefix and `retry
in {N}s` hint that existing client gates parse keep working (desktop
`parseRateLimitHint`, mobile `RelayRateLimitGate`, buzz-acp
`set_rate_limit_gate`). Only the frame *type* changes, so
`docs/multi-tenant-relay.md` L7 stays satisfied.

Two notes on how this landed, both worth a reviewer's attention:

1. **A survived mutation became a design change.**
`send_admission_result` originally took a `RejectionTarget` parameter,
and reverting the *second* call site (the per-minute message quota)
survived the whole suite — with Redis unreachable the first quota check
short-circuits, so that line is unreachable in test. Rather than test
around it, the parameter is gone: the target is derived from the frame,
so no call site can name the wrong channel.

2. **The relay fix would have caused a client regression on its own.**
Gate arming lived only in the NOTICE branch. Once rejections arrive as
`OK:false`, `handleOk` failed the send without ever backing off — the
client would retry straight into the same quota. Desktop and Mobile now
arm on a `rate-limited:` OK rejection. ACP was subsequently fixed in
`3b06dd32493596ec650f20abf8805791c50fdc24`: it arms the gate and
re-parks only the refused observer frame, preserving other in-flight
frames. Desktop gets `activateRateLimitIfSignalled` as the single owner
of that prefix test, called from both `handleOk` and the NOTICE branch.

<details>
<summary>File changes</summary>

**crates/buzz-relay/src/rejection.rs** (new)
Owns the admission-rejection concern: `RejectionTarget`,
`rejection_target_for`, `request_rejection_message`,
`send_admission_result`, and `enforce_ws_admission`, moved out of
`connection.rs`. Six tests, two of which drive the real
`enforce_ws_admission` against a real `AppState`.

**crates/buzz-relay/src/connection.rs**
Fix the EVENT handler-semaphore rejection to correlate to the event id;
delegate admission to the new module. Add two tests that drive the real
`handle_text_message` with every handler permit held. Down from 1319 to
1116 lines.

**crates/buzz-relay/src/state.rs**
Widen the existing `test_state` helper to `pub(crate)` so the rejection
tests reuse it rather than adding a ninth copy of `AppState`
construction.

**desktop/src/shared/api/relayRateLimitGate.ts**
Add `activateRateLimitIfSignalled` — one owner for the `rate-limited:`
prefix test, since three inbound frame types now carry it.

**desktop/src/shared/api/relayClientSession.ts**
Arm the gate on a rate-limited OK rejection; route the NOTICE branch
through the same helper. Net zero lines, which keeps this
already-oversized file within the differential ratchet.

**desktop/src/shared/api/relayClientPublishRejection.test.mjs** (new)
Four tests against the real `RelayClient`: a rate-limited OK settles the
pending publish and arms the gate; an ordinary rejection does not arm
it; an accepted OK still resolves.

**mobile/lib/shared/relay/relay_session.dart**
Arm the gate in `_handleOk` for a rate-limited rejection.

**mobile/test/shared/relay/relay_session_test.dart**
Two tests driving the real `publish` + `debugHandleMessage` path.

</details>

<details>
<summary>Validation</summary>

**Mutation-tested — 5 mutations, all now killed.** Each production call
site was reverted to the defective behaviour to confirm a test fails.
This caught two false-negative tests:

| # | Mutation | Result |
|---|----------|--------|
| 1 | `rejection_target_for`: EVENT → `Connection` | 4 tests fail |
| 2 | EVENT handler-semaphore call site → bare NOTICE | **survived at
first** |
| 3 | per-minute quota call site → `Connection` | **survived**; fixed by
removing the parameter |
| 4 | desktop `handleOk` gate arming removed | 1 test fails |
| 5 | mobile `_handleOk` gate arming removed | 1 test fails |

Mutation 2 is the lesson: my first saturation test called
`request_rejection_message` directly, so reverting the real call site
inside the `match` arm left it green. It now drives
`handle_text_message` itself and dies on that mutation.

- `cargo test -p buzz-relay` — 928 passed, 1 failed:
`api::mesh_demo::tests::demo_join_forwarded_arm_round_trips_echo`,
**pre-existing**, reproduced with all changes stashed at `4dd4d73de`.
- `cd desktop && npm test` — 5721 passed, 0 failed (full suite).
- `cd mobile && flutter test` — 1876 passed, 0 failed (full suite).
- `just fmt-check`, `just clippy`, `just desktop-check`, `just
mobile-check`, `just file-size-check` — clean. Desktop's 5 biome
warnings are pre-existing (reproduced with changes stashed).
- All 9 pre-push lanes green, including `rust-tests` and
`desktop-tauri-checks`.

**Not verified:** not reproduced end-to-end against a live relay under a
forced quota burst. The causal chain is source-proven and
mutation-proven at the frame level; the ~25s attribution follows from
`PUBLISH_TIMEOUT_MS` but is not directly measured. A packaged-build
click-through would close that gap.

</details>

Related work: #6957 bounds Desktop HTTP event submission, but safe
retained-operation recovery after exhausted/ambiguous outcomes remains
unfinished. #6998 is the separately reviewable Desktop
readiness/duplicate-subscription slice. Neither is claimed to complete
native before/after startup-send validation.

Diagnosis note: `RESEARCH/DESKTOP_STARTUP_SEND_STALL_2026_08_27.md`
(Brain's workspace).

## Current review disposition (2026-08-28)

The [review on
`cd12c938`](https://github.com/block/buzz/pull/6961#pullrequestreview-5052902510)
identified ACP's missing rate-limited-OK handling. Commit
`3b06dd32493596ec650f20abf8805791c50fdc24` fixes gate arming, re-parking
the specifically refused observer frame, and the stale NOTICE comment.
Two regressions drive the real frame dispatcher. See [the implementation
and validation
response](https://github.com/block/buzz/pull/6961#issuecomment-5455032054).

The Mobile generation-check inline thread is resolved: its `async
publish` returns a failed Future when superseded; it does not throw
synchronously at invocation. No further production change was indicated
by that comment.

The validation counts above describe the original slice, not a new
rerun. At `3b06dd324`, the current GitHub check rollup has successful
completed test/build checks (non-applicable jobs skipped). The
security-review comment still requires review for the current base/head
range; do not read a green authorization job as a completed security
review. Approval and merge remain human decisions.

---------

Signed-off-by: Brain <1a02c72794dcd0f07058a353bc3a81f4028b8c77c92c87fce6d5c8b85970a20b@buzz.block.builderlab.xyz>
Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Brain <1a02c72794dcd0f07058a353bc3a81f4028b8c77c92c87fce6d5c8b85970a20b@buzz.block.builderlab.xyz>
Co-authored-by: Carl <9d00794d3df50972eb8b615511783cab12a77a8fd5dd5edd58073ec73b54bd8b@buzz.block.builderlab.xyz>
2026-08-31 14:43:31 -06:00