3865 Commits

Author SHA1 Message Date
Erik Johnston
33e0c25279
Clean up old device_federation_inbox rows (#18546)
Fixes https://github.com/element-hq/synapse/issues/17370
2025-06-18 11:58:31 +00:00
Erik Johnston
f500c7d982
Speed up MAS token introspection (#18357)
We do this by shoving it into Rust. We believe our python http client is
a bit slow.

Also bumps minimum rust version to 1.81.0, released last September (over
six months ago)

To allow for async Rust, includes some adapters between Tokio in Rust
and the Twisted reactor in Python.
2025-06-16 16:41:35 +01:00
Kegan Dougal
db8a8d33fe
bugfix: calculate the PL for non-creators correctly in v11 rooms (#18547)
Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
2025-06-13 12:56:39 +01:00
Erik Johnston
1709957395
Fix bug where sliding sync ignored room_id_to_include option (#18535)
This was correctly handled for the "fallback" case where the background
updates hadn't finished

---------

Co-authored-by: Eric Eastwood <erice@element.io>
2025-06-13 11:29:23 +01:00
Quentin Gliech
0de7aa9953
Enable flake8-logging and flake8-logging-format rules in Ruff and fix related issues throughout the codebase (#18542)
This can be reviewed commit by commit.

This enables the `flake8-logging` and `flake8-logging-format` rules in
Ruff, as well as logging exception stack traces in a few places where it
makes sense

 - https://docs.astral.sh/ruff/rules/#flake8-logging-log
 - https://docs.astral.sh/ruff/rules/#flake8-logging-format-g

### Linting to avoid pre-formatting log messages

See [`adamchainz/flake8-logging` -> *LOG011 avoid pre-formatting log
messages*](152db2f167/README.rst (log011-avoid-pre-formatting-log-messages))

Practically, this means prefer placeholders (`%s`) over f-strings for
logging.

This is because placeholders are passed as args to loggers, so they can
do special handling of them.
For example, Sentry will record the args separately in their logging
integration:
c15b390dfe/sentry_sdk/integrations/logging.py (L280-L284)

One theoretical small perf benefit is that log levels that aren't
enabled won't get formatted, so it doesn't unnecessarily create
formatted strings
2025-06-13 09:44:18 +02:00
Kegan Dougal
978032141b
bugfix: ensure _get_power_level_for_sender works when there is no PL event (#18534) 2025-06-10 15:11:49 +01:00
Emmanuel Ferdman
6521406a37
Migrate to assertEqual (#18488)
This small PR migrates from `unittest.assertEquals` to
`unittest.assertEqual` which is deprecated from Python2.7:
```python
DeprecationWarning: Please use assertEqual instead.
```

Signed-off-by: Emmanuel Ferdman <emmanuelferdman@gmail.com>
2025-06-06 16:14:09 +01:00
Will Hunt
6e600c986e
Don't allow users to ignore themselves. (#18508)
Fixes the self-ignore issues we've being seeing of reports of by
ignoring bad requests from clients.
Fixes https://github.com/element-hq/synapse/issues/11963

Fix https://github.com/element-hq/element-web/issues/29969 although this
should also be fixed on the client to avoid confusing errors popping up
while rejecting invites.

Related to https://github.com/matrix-org/matrix-rust-sdk/issues/5073
2025-06-06 15:37:15 +01:00
Will Hunt
d285d76185
Recover an appservice if a successful ping occurs. (#18521)
Fixes https://github.com/element-hq/synapse/issues/14240

This scratches an itch that i've had for years. We regularly run into
the issue where (especially in development) appservices can go down for
a period and them come back up. The ping endpoint was introduced some
time ago which means Synapse can determine if an AS is up more or less
immediately, so we might as well use that to schedule transaction
redelivery.

I believe transaction scheduling logic is largely implementation
specific, so we should be in the clear to do this without any spec
changes.
2025-06-06 11:59:38 +00:00
Hugh Nimmo-Smith
82189cbde4
Export RatelimitOverride from ModuleApi (#18513) 2025-06-06 10:48:49 +00:00
Will Hunt
8010377a88
Add support for MSC4155 Invite filtering (#18288)
This implements
https://github.com/matrix-org/matrix-spec-proposals/pull/4155, which
adds support for a new account data type that blocks an invite based on
some conditions in the event contents.

---------

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
2025-06-05 11:49:09 +01:00
Hugh Nimmo-Smith
9b2bc75ed4
Add ratelimit callbacks to module API to allow dynamic ratelimiting (#18458) 2025-06-04 12:09:11 +00:00
Hugh Nimmo-Smith
28f21b4036
Add user_may_send_state_event callback to spam checker module API (#18455) 2025-06-04 11:26:04 +00:00
Hugh Nimmo-Smith
379356c0ea
Add media repository callbacks to module API to control media upload size (#18457)
Adds new callbacks for media related functionality:

- `get_media_config_for_user`
- `is_user_allowed_to_upload_media_of_size`
2025-06-04 11:33:10 +01:00
Hugh Nimmo-Smith
fbe7a898f0
Pass room_config argument to user_may_create_room spam checker module callback (#18486)
This PR adds an additional `room_config` argument to the
`user_may_create_room` spam checker module API callback.

It will continue to work with implementations of `user_may_create_room`
that do not expect the additional parameter.

A side affect is that on a room upgrade the spam checker callback is
called *after* doing some work to calculate the state rather than
before. However, I hope that this is acceptable given the relative
infrequency of room upgrades.
2025-06-04 11:30:45 +01:00
Hugh Nimmo-Smith
a4d8da7a1b
Make user_type extensible and allow default user_type to be set (#18456) 2025-06-03 11:34:40 +00:00
Hubert Chathi
2436512a25
Mark dehydrated devices in admin get devices endpoint (#18252)
Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
2025-05-28 12:20:27 +01:00
Johannes Marbach
c8733be8aa
Add option to limit key queries to users sharing rooms as per MSC4263 (#18180)
This implements
https://github.com/matrix-org/matrix-spec-proposals/pull/4263.

### Pull Request Checklist

<!-- Please read
https://element-hq.github.io/synapse/latest/development/contributing_guide.html
before submitting your pull request -->

* [x] Pull request is based on the develop branch
* [x] Pull request includes a [changelog
file](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#changelog).
The entry should:
- Be a short description of your change which makes sense to users.
"Fixed a bug that prevented receiving messages from other servers."
instead of "Moved X method from `EventStore` to `EventWorkerStore`.".
  - Use markdown where necessary, mostly for `code blocks`.
  - End with either a period (.) or an exclamation mark (!).
  - Start with a capital letter.
- Feel free to credit yourself, by adding a sentence "Contributed by
@github_username." or "Contributed by [Your Name]." to the end of the
entry.
* [x] [Code
style](https://element-hq.github.io/synapse/latest/code_style.html) is
correct
(run the
[linters](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#run-the-linters))

---------

Signed-off-by: Johannes Marbach <n0-0ne+github@mailbox.org>
2025-05-28 11:58:08 +02:00
gui-yue
07468a0f1c
Increase timeout for test_lock_contention on RISC-V (#18430)
This PR addresses a test failure for
`tests.handlers.test_worker_lock.WorkerLockTestCase.test_lock_contention`
which consistently times out on the RISC-V (specifically `riscv64`)
architecture.

The test simulates high lock contention and has a default timeout of 5
seconds, which seems sufficient for architectures like x86_64 but proves
too short for current RISC-V hardware/environment performance
characteristics, leading to spurious `tests.utils.TestTimeout` failures.

This fix introduces architecture detection using `platform.machine()`.
If a RISC-V architecture is detected:
* The timeout for this specific test is increased (e.g., to 15 seconds
).

The original, stricter timeout (5 seconds) and lock count (500) are
maintained for all other architectures to avoid masking potential
performance regressions elsewhere.

This change has been tested locally on RISC-V, where the test now passes
reliably, and on x86_64, where it continues to pass with the original
constraints.

---

### Pull Request Checklist

<!-- Please read
https://element-hq.github.io/synapse/latest/development/contributing_guide.html
before submitting your pull request -->

* [X] Pull request is based on the develop branch *(Assuming you based
it correctly)*
* [X] Pull request includes a [changelog
file](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#changelog).
*(See below)*
* [X] [Code
style](https://element-hq.github.io/synapse/latest/code_style.html) is
correct (run the
[linters](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#run-the-linters))
*(Please run linters locally)*
2025-05-27 17:17:04 +00:00
Shay
24e849e483
Don't move invited users to new room when shutting down room (#18471)
This is confusing to users who received unwanted invites.
2025-05-23 09:59:40 +01:00
Travis Ralston
b7d4841947
Policy server part 1: Actually call the policy server (#18387)
Roughly reviewable commit-by-commit.

This is the first part of adding policy server support to Synapse. Other
parts (unordered), which may or may not be bundled into fewer PRs,
include:

* Implementation of a bulk API
* Supporting a moderation server config (the `fallback_*` options of
https://github.com/element-hq/policyserv_spam_checker )
* Adding an "early event hook" for appservices to receive federation
transactions *before* events are processed formally
* Performance and stability improvements

### Pull Request Checklist

<!-- Please read
https://element-hq.github.io/synapse/latest/development/contributing_guide.html
before submitting your pull request -->

* [x] Pull request is based on the develop branch
* [x] Pull request includes a [changelog
file](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#changelog).
The entry should:
- Be a short description of your change which makes sense to users.
"Fixed a bug that prevented receiving messages from other servers."
instead of "Moved X method from `EventStore` to `EventWorkerStore`.".
  - Use markdown where necessary, mostly for `code blocks`.
  - End with either a period (.) or an exclamation mark (!).
  - Start with a capital letter.
- Feel free to credit yourself, by adding a sentence "Contributed by
@github_username." or "Contributed by [Your Name]." to the end of the
entry.
* [x] [Code
style](https://element-hq.github.io/synapse/latest/code_style.html) is
correct
(run the
[linters](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#run-the-linters))

---------

Co-authored-by: turt2live <1190097+turt2live@users.noreply.github.com>
Co-authored-by: Devon Hudson <devon.dmytro@gmail.com>
2025-05-21 22:09:09 +00:00
Dagfinn Ilmari Mannsåker
553e124f76
Include room ID in room deletion status response (#18318)
When querying by `delete_id` it's handy to see which room the delete
pertains to.
2025-05-20 11:53:30 -05:00
Devon Hudson
99cbd33630
Merge branch 'master' into develop 2025-05-20 09:36:05 -06:00
Andrew Morgan
4b1d9d5d0e
Add a unit test for the phone home stats (#18463) 2025-05-20 16:26:45 +01:00
dependabot[bot]
9d43bec326
Bump ruff from 0.7.3 to 0.11.10 (#18451)
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Andrew Morgan <andrew@amorgan.xyz>
Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
2025-05-20 15:23:30 +01:00
Andrew Morgan
1f4ae2f9eb
Allow only requiring a field be present in an SSO response, rather than specifying a required value (#18454) 2025-05-19 17:50:02 +01:00
Erik Johnston
67920c0aca
Fix up the topological ordering for events above MAX_DEPTH (#18447)
Synapse previously did not correctly cap the max depth of an event to
the max canonical json int. This can cause ordering issues for any
events that were sent locally at the time.

This background update goes and correctly caps the topological ordering
to the new `MAX_DEPTH`.

c.f. GHSA-v56r-hwv5-mxg6

---------

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
2025-05-19 13:36:30 +01:00
Shay
74e2f028bb
Fix admin redaction endpoint not redacting encrypted messages (#18434) 2025-05-19 09:48:46 +01:00
_
44ae5362fd
Add option to allow registrations that begin with '_' (#18262)
Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
2025-05-15 11:31:52 +00:00
Eric Eastwood
6e910e2b2c
Fix a couple type annotations in the RootConfig/Config (#18409)
Fix a couple type annotations in the `RootConfig`/`Config`. Discovered
while cribbing this code for another project.

It's really sucks that `mypy` type checking doesn't catch this. I assume
this is because we also have a `synapse/config/_base.pyi` that overrides
all of this. Still unclear to me why the `Iterable[str]` vs
`StrSequence` issue wasn't caught as that's what `ConfigError` expects.
2025-05-13 10:22:15 -05:00
Devon Hudson
7c633f1a58
Pass leave from remote invite rejection down Sliding Sync (#18375)
Fixes #17753 


### Dev notes

The `sliding_sync_membership_snapshots` and `sliding_sync_joined_rooms`
database tables were added in
https://github.com/element-hq/synapse/pull/17512

### Pull Request Checklist

<!-- Please read
https://element-hq.github.io/synapse/latest/development/contributing_guide.html
before submitting your pull request -->

* [X] Pull request is based on the develop branch
* [x] Pull request includes a [changelog
file](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#changelog).
The entry should:
- Be a short description of your change which makes sense to users.
"Fixed a bug that prevented receiving messages from other servers."
instead of "Moved X method from `EventStore` to `EventWorkerStore`.".
  - Use markdown where necessary, mostly for `code blocks`.
  - End with either a period (.) or an exclamation mark (!).
  - Start with a capital letter.
- Feel free to credit yourself, by adding a sentence "Contributed by
@github_username." or "Contributed by [Your Name]." to the end of the
entry.
* [X] [Code
style](https://element-hq.github.io/synapse/latest/code_style.html) is
correct
(run the
[linters](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#run-the-linters))

---------

Co-authored-by: Erik Johnston <erik@matrix.org>
Co-authored-by: Olivier 'reivilibre <oliverw@matrix.org>
Co-authored-by: Eric Eastwood <erice@element.io>
2025-05-08 14:28:23 +00:00
Devon Hudson
ae877aa101
Convert Sliding Sync tests to use higher-level compute_interested_rooms (#18399)
Spawning from
https://github.com/element-hq/synapse/pull/18375#discussion_r2071768635,

This updates some sliding sync tests to use a higher level function in
order to move test coverage to cover both fallback & new tables.
Important when https://github.com/element-hq/synapse/pull/18375 is
merged.

In other words, adjust tests to target `compute_interested_room(...)`
(relevant to both new and fallback path) instead of the lower level
`get_room_membership_for_user_at_to_token(...)` that only applies to the
fallback path.

### Dev notes

```
SYNAPSE_TEST_LOG_LEVEL=INFO poetry run trial tests.handlers.test_sliding_sync.ComputeInterestedRoomsTestCase_new
```

```
SYNAPSE_TEST_LOG_LEVEL=INFO poetry run trial tests.rest.client.sliding_sync
```

```
SYNAPSE_POSTGRES=1 SYNAPSE_POSTGRES_USER=postgres SYNAPSE_TEST_LOG_LEVEL=INFO poetry run trial tests.handlers.test_sliding_sync.ComputeInterestedRoomsTestCase_new.test_display_name_changes_leave_after_token_range
```

### Pull Request Checklist

<!-- Please read
https://element-hq.github.io/synapse/latest/development/contributing_guide.html
before submitting your pull request -->

* [x] Pull request is based on the develop branch
* [x] Pull request includes a [changelog
file](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#changelog).
The entry should:
- Be a short description of your change which makes sense to users.
"Fixed a bug that prevented receiving messages from other servers."
instead of "Moved X method from `EventStore` to `EventWorkerStore`.".
  - Use markdown where necessary, mostly for `code blocks`.
  - End with either a period (.) or an exclamation mark (!).
  - Start with a capital letter.
- Feel free to credit yourself, by adding a sentence "Contributed by
@github_username." or "Contributed by [Your Name]." to the end of the
entry.
* [x] [Code
style](https://element-hq.github.io/synapse/latest/code_style.html) is
correct
(run the
[linters](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#run-the-linters))

---------

Co-authored-by: Eric Eastwood <erice@element.io>
2025-05-07 15:07:58 +00:00
Florian Klink
c9adbc6a1c
make tests tolerant to authlib 1.5.2 error messages (#18390)
authlib 1.5.2 now single-quotes error messages in the claims, causing
three tests to fail.

Replace the comparison with a regex that accepts both single or double
quotes.

This succeeds the tests with both authlib 1.5.1 and 1.5.2.

See https://github.com/NixOS/nixpkgs/pull/402797 for context.

### Pull Request Checklist

<!-- Please read
https://element-hq.github.io/synapse/latest/development/contributing_guide.html
before submitting your pull request -->

* [x] Pull request is based on the develop branch
* [x] Pull request includes a [changelog
file](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#changelog).
The entry should:
- Be a short description of your change which makes sense to users.
"Fixed a bug that prevented receiving messages from other servers."
instead of "Moved X method from `EventStore` to `EventWorkerStore`.".
  - Use markdown where necessary, mostly for `code blocks`.
  - End with either a period (.) or an exclamation mark (!).
  - Start with a capital letter.
- Feel free to credit yourself, by adding a sentence "Contributed by
@github_username." or "Contributed by [Your Name]." to the end of the
entry.
* [x] [Code
style](https://element-hq.github.io/synapse/latest/code_style.html) is
correct
(run the
[linters](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#run-the-linters))
2025-05-05 10:09:39 +00:00
Will Lewis
fe8bb620de
Add the ability to exclude remote users in user directory search results (#18300)
This change adds a new configuration
`user_directory.exclude_remote_users`, which defaults to False.
When set to True, remote users will not appear in user directory search
results.

### Pull Request Checklist

<!-- Please read
https://element-hq.github.io/synapse/latest/development/contributing_guide.html
before submitting your pull request -->

* [x] Pull request is based on the develop branch
* [x] Pull request includes a [changelog
file](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#changelog).
The entry should:
- Be a short description of your change which makes sense to users.
"Fixed a bug that prevented receiving messages from other servers."
instead of "Moved X method from `EventStore` to `EventWorkerStore`.".
  - Use markdown where necessary, mostly for `code blocks`.
  - End with either a period (.) or an exclamation mark (!).
  - Start with a capital letter.
- Feel free to credit yourself, by adding a sentence "Contributed by
@github_username." or "Contributed by [Your Name]." to the end of the
entry.
* [x] [Code
style](https://element-hq.github.io/synapse/latest/code_style.html) is
correct
(run the
[linters](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#run-the-linters))

---------

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
2025-05-02 15:38:02 +01:00
Andrew Morgan
fd5d3d852d
Don't check the at_hash (access token hash) in OIDC ID Tokens if we don't use the access token (#18374)
Co-authored-by: Eric Eastwood <erice@element.io>
2025-05-02 12:16:14 +01:00
Quentin Gliech
74be5cfdbc
Do not auto-provision missing users & devices when delegating auth to MAS (#18181)
Since MAS 0.13.0, the provisionning of devices and users is done
synchronously and reliably enough that we don't need to auto-provision
on the Synapse side anymore.

It's important to remove this behaviour if we want to start caching
token introspection results.
2025-05-02 12:13:26 +02:00
Shay
6dc1ecd359
Add an Admin API endpoint to fetch scheduled tasks (#18214) 2025-05-01 18:30:00 +00:00
Erik Johnston
ad140130cc
Slight performance increase when using the ratelimiter (#18369)
See the commits.
2025-04-29 14:08:22 +01:00
Erik Johnston
e47de2b32d
Do not retry push during backoff period (#18363)
This fixes a bug where if a pusher gets told about a new event to push
it will ignore the backoff and immediately retry sending any pending
push.
2025-04-29 14:08:11 +01:00
Devon Hudson
89cb613a4e
Revert "Add total event, unencrypted message, and e2ee event counts to stats reporting" (#18346)
Reverts element-hq/synapse#18260

It is causing a failure when building release debs for `debian:bullseye`
with the following error:
```
sqlite3.OperationalError: near "RETURNING": syntax error
```
2025-04-16 16:41:41 +00:00
Andrew Morgan
a832375bfb
Add total event, unencrypted message, and e2ee event counts to stats reporting (#18260)
Co-authored-by: Eric Eastwood <erice@element.io>
2025-04-15 07:49:08 -07:00
Olivier D
dd05cc55ee
Add passthrough_authorization_parameters support to OIDC configuration (#18232)
# Add passthrough_authorization_parameters support to OIDC configuration

This PR adds `the passthrough_authorization_parameters` option to OIDC
configuration, allowing specific query parameters (like `login_hint`) to
be passed from the redirect endpoint to the authorization grant URL.

This enables clients to provide additional context to identity providers
during authentication flows.

# Pull Request Checklist

<!-- Please read
https://element-hq.github.io/synapse/latest/development/contributing_guide.html
before submitting your pull request -->

* [x] Pull request is based on the develop branch
* [x] Pull request includes a [changelog
file](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#changelog).
The entry should:
- Be a short description of your change which makes sense to users.
"Fixed a bug that prevented receiving messages from other servers."
instead of "Moved X method from `EventStore` to `EventWorkerStore`.".
  - Use markdown where necessary, mostly for `code blocks`.
  - End with either a period (.) or an exclamation mark (!).
  - Start with a capital letter.
- Feel free to credit yourself, by adding a sentence "Contributed by
@github_username." or "Contributed by [Your Name]." to the end of the
entry.
* [x] [Code
style](https://element-hq.github.io/synapse/latest/code_style.html) is
correct
(run the
[linters](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#run-the-linters))

---------

Co-authored-by: Quentin Gliech <quenting@element.io>
2025-04-10 13:39:27 +00:00
reivilibre
1709234311
Add an access token introspection cache to make Matrix Authentication Service integration (MSC3861) more efficient. (#18231)
Evolution of
cd78f3d2ee

This cache does not have any explicit invalidation, but this is deemed
acceptable (see code comment).

We may still prefer to add it eventually, letting us bump up the
Time-To-Live (TTL) on the cache as we currently set a 2 minute expiry
to balance the fact that we have no explicit invalidation.


This cache makes several things more efficient:

- reduces number of outbound requests from Synapse, reducing CPU
utilisation + network I/O
- reduces request handling time in Synapse, which improves
client-visible latency
- reduces load on MAS and its database


---

Other than that, this PR also introduces support for `expires_in`
(seconds) on the introspection response.
This lets the cached responses expire at the proper expiry time of the
access token, whilst avoiding clock skew issues.

Corresponds to:
https://github.com/element-hq/matrix-authentication-service/pull/4241

---------

Signed-off-by: Olivier 'reivilibre <oliverw@matrix.org>
2025-04-01 14:31:19 +01:00
Will Hunt
d17295e5c3
Store hashes of media files, and allow quarantining by hash. (#18277)
This PR makes a few radical changes to media. This now stores the SHA256
hash of each file stored in the database (excluding thumbnails, more on
that later). If a set of media is quarantined, any additional uploads of
the same file contents or any other files with the same hash will be
quarantined at the same time.

Currently this does NOT:
 - De-duplicate media, although a future extension could be to do that.
- Run any background jobs to identify the hashes of older files. This
could also be a future extension, though the value of doing so is
limited to combat the abuse of recent media.
- Hash thumbnails. It's assumed that thumbnails are parented to some
form of media, so you'd likely be wanting to quarantine the media and
the thumbnail at the same time.
2025-03-27 17:26:34 +00:00
Devon Hudson
1efb826b54
Delete unreferenced state groups in background (#18254)
This PR fixes #18154 to avoid de-deltaing state groups which resulted in
DB size temporarily increasing until the DB was `VACUUM`'ed. As a
result, less state groups will get deleted now.
It also attempts to improve performance by not duplicating work when
processing state groups it has already processed in previous iterations.

### Pull Request Checklist

<!-- Please read
https://element-hq.github.io/synapse/latest/development/contributing_guide.html
before submitting your pull request -->

* [X] Pull request is based on the develop branch
* [X] Pull request includes a [changelog
file](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#changelog).
The entry should:
- Be a short description of your change which makes sense to users.
"Fixed a bug that prevented receiving messages from other servers."
instead of "Moved X method from `EventStore` to `EventWorkerStore`.".
  - Use markdown where necessary, mostly for `code blocks`.
  - End with either a period (.) or an exclamation mark (!).
  - Start with a capital letter.
- Feel free to credit yourself, by adding a sentence "Contributed by
@github_username." or "Contributed by [Your Name]." to the end of the
entry.
* [X] [Code
style](https://element-hq.github.io/synapse/latest/code_style.html) is
correct
(run the
[linters](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#run-the-linters))

---------

Co-authored-by: Erik Johnston <erikj@element.io>
2025-03-21 17:09:49 +00:00
Shay
4b8dbe22c0
Add a column participant to room_memberships table (#18068) 2025-03-18 17:59:57 +00:00
Andrew Ferrazzutti
51df675c05
MSC4140: don't cancel delayed state on own state (#17810)
When a user sends a state event, do not cancel their own delayed events
for the same piece of state.

For context, see [the relevant section in the
MSC](a09a883d9a/proposals/4140-delayed-events-futures.md (delayed-state-events-are-cancelled-by-a-more-recent-state-event)).
2025-03-17 16:21:45 +00:00
Erik Johnston
59a15da433
Add caching support to media endpoints (#18235)
We do a few things in this PR to better support caching:

1. Change `Cache-Control` header to allow intermediary proxies to cache
media *only* if they revalidate on every request. This means that the
intermediary cache will still send the request to Synapse but with a
`If-None-Match` header, at which point Synapse can check auth and
respond with a 304 and empty content.
2. Add `ETag` response header to all media responses. We hardcode this
to `1` since all media is immutable (beyond being deleted).
3. Check for `If-None-Match` header (after checking for auth), and if it
matches then respond with a 304 and empty body.

---------

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
2025-03-13 16:28:19 +00:00
reivilibre
8295de87a7
Revert the background job to clear unreferenced state groups (that was introduced in v1.126.0rc1), due to a suspected issue that causes increased disk usage. (#18222)
Revert "Add background job to clear unreferenced state groups (#18154)"

This mechanism is suspected of inserting large numbers of rows into
`state_groups_state`,
thus unreasonably increasing disk usage.

See: https://github.com/element-hq/synapse/issues/18217

This reverts commit 5121f9210c989fcc909e78195133876dff3bc9b9 (#18154).

---------

Signed-off-by: Olivier 'reivilibre <oliverw@matrix.org>
2025-03-07 15:44:13 +00:00
Quentin Gliech
08c56c3acc
Support getting the device ID explicitly from MAS (#18174)
The context for this is that the Matrix spec allows basically anything
in the device ID. With MSC3861, we're restricting this to strings that
can be represented as scopes.
Whilst this works well for next-gen auth sessions, compatibility/legacy
sessions still can have characters that can't be encoded (mainly spaces)
in them.

To work around that, we added in MAS a behaviour where the device_id is
given as an explicit property of the token introspection response, and
remove it from the scope.
Because we don't expect users to rollout new Synapse and MAS versions in
sync, we needed a way to 'advertise' support for this behaviour: the
easiest way to do that was through an extra header in the introspection
response.

On the longer term, I expect MAS and Synapse to move away from the
introspection endpoint, and instead define a specific API for Synapse ->
MAS communication.

PR on the MAS side:
https://github.com/element-hq/matrix-authentication-service/pull/4067
2025-03-04 13:08:44 +00:00