Erik JohnstonandClaude Opus 5.5 489c09175d Sign federation requests in Rust ...

Add `rust/src/federation`, starting with the `X-Matrix` request
signature and the transport seam the request layer will send through.

The signing code comes from matrix-hyper-federation-client (Apache-2.0),
changed to use Synapse's canonical JSON serializer, Python's header
layout and quoting, and `destination_is` for identity servers. It keeps
that crate's signature test vectors. The body is serialized to canonical
JSON once, then both signed and sent in that form.

The homeserver's signing key crosses to Rust as its algorithm, version
and seed, taken from `hs.signing_key`. Rust never reads the key file.

`FederationTransport` is what the request layer will send through.
`PyTransport` implements it with a Python callable, which is how Rust
level tests will inject responses in place of `FakeTransport`.

A trial test checks the Rust header is byte-identical to the one
`MatrixFederationHttpClient.build_auth_headers` builds.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01R5b7Ruy4cgt27Mjq6Ptxbb

2026-10-15 14:54:15 +00:00

..

api

Profile endpoint rate limit (#20218)

2026-09-18 12:00:45 +01:00

app

Add a per-homeserver clock to the Rust side (#20294)

2026-10-07 11:11:08 +01:00

appservice

Add experimental support for letting application services proxy namespaces in the C-S and S-S API as per MSC4512 (#19972)

2026-08-28 13:45:54 +01:00

config

Accept YAML booleans for rust_state_res

2026-10-13 13:22:07 +00:00

crypto

Update HomeserverTestCase.get_success(...) and friends to drive async Rust (Tokio runtime/thread pool) (#19871)

2026-07-02 15:20:38 -05:00

events

Add received_ts to the in-memory event internal metadata struct. (#20312)

2026-10-06 19:27:46 +01:00

federation

Catch up MSC4354 Sticky Events to remote homeservers that have missed them. (#20165)

2026-10-05 10:52:46 +01:00

handlers

Drop the rust_sync gate on an unshared event cache

2026-10-15 12:14:54 +00:00

http

Condense Pydantic validation error messages in client API responses (#20321)

2026-10-09 09:40:32 +01:00

logging

Bump Twisted in poetry.lock from 25.5.0 to 26.4.0 (#20259)

2026-09-29 17:50:55 +00:00

media

Use beautifulsoup4 instead of lxml for URL previews (#19301)

2026-10-02 15:46:34 +01:00

metrics

Report the database driver in phone-home stats

2026-10-12 18:36:38 +00:00

module_api

MSC4140: add dedicated endpoint for delayed events (#19354)

2026-10-08 05:02:12 +00:00

push

Short-circuit push rule evaluation when only one user is in a room (#20315)

2026-10-12 11:56:27 +01:00

replication

Use sharded tokens in MSC4354: Sticky Events sync and sliding sync, preventing events appearing in multiple sync responses. (#20186)

2026-10-05 12:40:55 +01:00

rest

Bundle a sync timeline's aggregations in Rust

2026-10-15 12:45:03 +00:00

scripts

Write union types as X | Y where possible (#19111)

2025-11-06 14:02:33 -06:00

server_notices

Force keyword-args for clear default_config(server_name="test") usage (#19849)

2026-06-12 09:45:22 -05:00

state

Make the Rust event cache EventsWorkerStore's event cache

2026-10-15 12:14:54 +00:00

storage

Make the Rust event cache EventsWorkerStore's event cache

2026-10-15 12:14:54 +00:00

synapse_rust

Sign federation requests in Rust

2026-10-15 14:54:15 +00:00

sync

Port the room summary heroes to Rust

2026-10-14 13:35:25 +00:00

test_utils

Don't store file on disk after media upload limit failure (#20006)

2026-10-07 12:05:01 +00:00

types

Replace usage of deprecated assertEquals with assertEqual (#19345)

2026-01-06 17:30:21 +00:00

util

Make the Rust event cache EventsWorkerStore's event cache

2026-10-15 12:14:54 +00:00

__init__.py

Correctly mention previous copyright (#16820)

2024-01-23 11:26:48 +00:00

server.py

Drop the rust_sync gate on an unshared event cache

2026-10-15 12:14:54 +00:00

test_distributor.py

Cleanly shutdown SynapseHomeServer object (#18828)

2025-10-01 02:42:09 +00:00

test_event_auth.py

Use the Rust auth rules from Python

2026-10-13 10:49:24 +00:00

test_mau.py

Force keyword-args for clear default_config(server_name="test") usage (#19849)

2026-06-12 09:45:22 -05:00

test_notifier.py

Add metrics for wait_for_stream_token timeouts per lagging stream (#20095)

2026-09-25 12:09:38 +01:00

test_phone_home.py

Move unique snowflake homeserver background tasks to start_background_tasks (#19037)

2025-10-13 10:19:09 -05:00

test_rust.py

Add missing type hints to tests. (#15027)

2023-02-08 19:52:37 +00:00

test_server.py

Rename the test_disconnect test helper so that pytest doesn't see it as a test. (#19486)

2026-02-20 15:37:34 +00:00

test_state.py

Add a cache to state res to cache more cases (#20185)

2026-09-21 13:40:31 +01:00

test_terms_auth.py

Introduce Clock.call_when_running(...) to include logcontext by default (#18944)

2025-09-22 10:27:59 -05:00

test_types.py

Expose MSC4354 Sticky Events over MSC4186 (Simplified) Sliding Sync. (#19591)

2026-06-23 13:04:36 +00:00

test_visibility.py

MSC4311: Use full PDU's in stripped state (like invite_room_state) over federation and always include m.room.create event (#19723)

2026-09-22 11:57:54 -05:00

unittest.py

Fix appservice ephemeral read receipts being permanently skipped on large receipt bursts (#20108)

2026-09-29 12:06:15 +01:00

utils.py

Dispatch sync rooms to Rust in rust_sync shadow and on modes

2026-10-14 23:14:41 +00:00