Paul Chobert 766f057305 Stop forwarding non compliant user ids (#20338) ...

Closes #20116

> [!NOTE]
> This PR Follows #20115 which already implemented this for
`m.device_list_update`

> User IDs with localparts containing characters outside the range
U+0021 to U+007E, or with
> an empty localpart, are considered non-compliant. For current room
versions, servers must
> still accept events using such user IDs over federation; however they
SHOULD NOT forward
> such user IDs to clients when referenced outside the context of an
event. For example,
> device list updates from non-compliant user IDs would be dropped by
the receiving server.
>
> — [Spec
1.19](https://spec.matrix.org/v1.19/appendices/#historical-user-ids)

This PR prevents from forwarding non compliant user ids for the
following events:

- `m.signing_key_update` 8c3c35e95d
- `m.presence` 26a8dfe862
- `m.typing` 1110cf2d73
- `m.receipt` 9e2da8b0a6
- `m.direct_to_device` 9541232a30

2026-10-13 11:10:48 +01:00

..

transport

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

__init__.py

Implementation of server_acls

2018-07-04 19:06:20 +01:00

_remote_join.py

fix RemoteJoinHelper to handle v12 rooms (#20021)

2026-08-03 13:47:26 -05:00

test_complexity.py

Format files with Ruff (#17643)

2024-09-02 12:39:04 +01:00

test_federation_base.py

Fix up event-construction in tests ahead of the Rust event port (#19781)

2026-05-15 10:12:42 +01:00

test_federation_catch_up.py

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

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

test_federation_client.py

Raise default room version to "12" (#20130)

2026-09-17 18:32:51 +00:00

test_federation_devices.py

Stop forwarding non compliant user ids (#20338)

2026-10-13 11:10:48 +01:00

test_federation_join_upgraded_room.py

Prevent theft of room aliases via remote join to room with illegitimate predecessor

2026-07-28 13:58:06 +01:00

test_federation_media.py

Implement synapse issue #16751: Treat local_media_directory as optional storage provider (#19204)

2026-01-06 23:29:58 +00:00

test_federation_out_of_band_membership.py

Raise default room version to "12" (#20130)

2026-09-17 18:32:51 +00:00

test_federation_sender.py

Update FakeChannel.await_result(...) to drive async Rust (Tokio runtime/thread pool) (#19879)

2026-07-07 04:07:19 -05:00

test_federation_server.py

MSC4242: State DAGs (serving) (#20133)

2026-09-11 11:44:40 +01:00