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tajniak81andClaude Opus 5.5 487e0f410b Phase 10: hardening and ops
CI / Test (ubuntu-latest) (push) Canceled after 0s
CI / Test (windows-latest) (push) Canceled after 0s
CI / Storage tests on PostgreSQL (push) Canceled after 0s
CI / Complement (federation off) (push) Canceled after 0s
CI / golangci-lint (push) Canceled after 0s
CI / Smoke test the binary (push) Canceled after 0s
Implements PLAN.md Phase 10.

Simplified Sliding Sync (MSC4186) is served at the unstable
org.matrix.simplified_msc3575 endpoint and advertised in /versions. Lists
are sorted by activity and filtered by DM, invite, encryption, room type,
space and tag; room subscriptions, required_state with wildcards, $ME and
$LAZY, and the to_device, e2ee, account_data, receipts and typing
extensions are supported. Per-connection state is kept in memory and an
unknown pos answers M_UNKNOWN_POS.

Threads and relations: m.relates_to is indexed on roomserver_events
(migration 0012), /relations (with recursion) and /threads are served, and
every event a timeline read returns carries its m.thread, m.replace and
m.reference summaries in unsigned.m.relations. Notifications carry a
thread ID (migration 0013): threaded receipts clear only their thread, and
sync reports unread_thread_notifications when the filter asks.

Spaces: /hierarchy walks a space breadth first, asking other servers about
rooms this one is not in through the new federation hierarchy endpoint;
room_summary describes one room. /search runs on FTS5 (sqlite, pocketbase)
or tsvector (postgres), bounded to what each user may see, with context,
profiles, state, grouping and paging.

The PocketBase driver is real: the sqlite schema and store on an embedded
PocketBase app's database, with media in its filesystem, local or S3
(database.pocketbase.s3). It runs the full storage test suite.

Ops: OpenTelemetry tracing over OTLP/HTTP (tracing.*), with server spans
per route, component spans, and trace propagation on federation, push and
application service calls. New metrics for persisted events, waiting
syncs, sliding sync connections and the database pool, with a Grafana
dashboard. deploy/ adds a Compose setup (PostgreSQL, Prometheus, Grafana,
Jaeger) and a Helm chart; cmd/warp-loadtest loads a server and reports
request and delivery latencies.

The load tester found a long-standing bug, fixed here: on a server where
no account data had been written, every incremental /sync re-sent the push
rules and returned at once, and an all-zero token was taken for an initial
sync, so long polls became busy loops.

The PostgreSQL migrations and search dialect compile but were not run
against a live PostgreSQL in this change.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-17 20:21:31 +02:00
tajniak81andClaude Opus 5.5 6aaf554336 Phase 5: federation
CI / Test (ubuntu-latest) (push) Canceled after 0s
CI / Test (windows-latest) (push) Canceled after 0s
CI / Storage tests on PostgreSQL (push) Canceled after 0s
CI / Complement (federation off) (push) Canceled after 0s
CI / golangci-lint (push) Canceled after 0s
CI / Smoke test the binary (push) Canceled after 0s
Implements PLAN.md Phase 5: the Server-Server API. Warp joins rooms on
other servers and lets their users join its rooms, invites across servers
with the invitee's server countersigning, rejects remote invites (locally
if the inviter is unreachable), and exchanges events, typing, receipts and
to-device messages with other homeservers — all behind the runtime switch,
which now starts and stops real outbound traffic.

The protocol lives in internal/federation with no knowledge of rooms:
X-Matrix signing (fuzzed parser), the spec's discovery algorithm keeping
the dial address and the TLS name apart, a signed client that refuses
every request while the switch is off or the policy denies the
destination, and a key ring that caches other servers' keys for at most a
week, with optional notaries.

The roomserver takes events from elsewhere through the spec's intake:
signatures and hashes (a hash mismatch keeps the redacted form), the rules
against the event's own auth events, against the state before it — with
/get_missing_events for small gaps and /state_ids for wide ones — and
against the current state, where a failure is a soft failure. Events held
without their state are outliers: a column on roomserver_events, because
the current state of a room joined over federation is almost all
outliers, and excluded from every timeline query. Forks are resolved at
the room's head. Membership across servers is make_join/send_join,
make_leave/send_leave and countersigned invites, in both directions;
m.room.server_acl is enforced on everything another server sends.
History before a remote join is backfilled when /messages pages past it,
stored at negative stream positions.

internal/federationapi is the running component: the inbound endpoints,
and an outbound queue that persists what it owes each destination, sends
it in transactions of 50 PDUs and 100 EDUs, backs off from ten seconds to
six hours, survives restarts, and drops events persisted while federation
is off rather than delivering a backlog in one burst. Its Module is what
the switch starts and stops.

Also: a TLS listener for port 8448, trusted key servers, key validity and
an outbound CA bundle in the config; per-destination health and backoff
reset in the admin API; remote profiles, aliases and directories in the
Client-Server API; a Complement federation profile. See
docs/federation.md, including its known gaps (no partial-state joins, no
key rotation).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-16 17:14:20 +02:00