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Task group 4 of federation-hardening.
4.1 — FEDERATION.md at the repo root: actor discovery (WebFinger, actor,
NodeInfo), object/activity types with real JSON examples (Note, Create,
Delete, the narrow follow-graph inbox), addressing, HTTP-Signature
expectations, the two-layer dedup contract, durable delivery/retry
policy, and blocklist moderation semantics — precise enough for another
implementation to interoperate. Linked from README and docs/architecture.
4.2 — three prom-client metrics + a journal dashboard row:
- `federation_delivery_total{outcome}` — incremented in deliver-activity
(delivered/skipped/failed).
- `federation_inbox_dropped_total{reason}` — incremented at every inbox
drop (duplicate | blocked); this is the counter deferred from task 3.2.
- `federation_queue_depth` — gauge sampled at scrape time in
/api/metrics from PgBossMessageQueue.getDepth(); the restart-loss
regression detector.
Grafana journal.json gains a Federation row (delivery rate, queue depth,
inbox drops); the logs panels shift down to make room.
Verified: dashboard JSON valid; journal typecheck + lint clean; unit
suite 357 passing (route-template guard unaffected).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
27 lines
1.8 KiB
Markdown
27 lines
1.8 KiB
Markdown
## 1. Durable queue
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- [x] 1.1 Implement `federation-queue.server.ts`: Fedify `MessageQueue` over pg-boss (enqueue with delay, listen loop), mirroring the `PostgresKvStore` adapter pattern
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- [x] 1.2 Swap `InProcessMessageQueue` for it in `federation.server.ts`; document the two-layer queueing (fan-out jobs + Fedify queue) in a code comment
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- [x] 1.3 Tests: enqueue/delay/consume roundtrip; simulated restart (new listener picks up previously enqueued messages)
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## 2. Replay defense
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- [x] 2.1 Add `federation_processed_activities` table (activity IRI PK, received_at) + migration; insert-or-drop check in inbox handlers before side effects
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- [x] 2.2 30-day TTL sweep in the jobs worker
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- [x] 2.3 Tests: duplicate Like/Delete/Update dropped as no-ops; Create double-delivery still covered by remoteOriginIri constraint
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## 3. Blocklist
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- [x] 3.1 Add `federation_blocked_instances` table + migration; exact-host check helper
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- [x] 3.2 Enforce at inbox (silent 202 drop + counter), delivery enqueue (filter recipients), and outbox poll/actor fetch (refuse)
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- [x] 3.3 Document the operator procedure (SQL insert/delete) in the ops docs; tests for all three boundaries
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## 4. Protocol doc & observability
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- [x] 4.1 Write `FEDERATION.md` (repo root): NodeInfo, actors/WebFinger, object + activity types with JSON examples, addressing, signatures + dedup expectations, retry policy, moderation semantics; link from README and docs
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- [x] 4.2 Add `federation_delivery_total{outcome}`, `federation_queue_depth`, `federation_inbox_dropped_total{reason}` metrics + journal dashboard row
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## 5. Verification
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- [ ] 5.1 Staging check: queue a fan-out, restart the journal container, confirm deliveries complete; block a test domain and verify both directions
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- [ ] 5.2 Run `pnpm typecheck && pnpm lint && pnpm test && pnpm test:e2e`
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