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>
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.
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>
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.
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
```
# 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>
Evolution of
https://github.com/element-hq/synapse/commit/cd78f3d2ee15ccf3e8229a1f529e0e2c16e15c45
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>
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.
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>
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>
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 5121f9210c (#18154).
---------
Signed-off-by: Olivier 'reivilibre <oliverw@matrix.org>
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
Allows overriding the `redirect_uri` parameter sent to both the
authorization and token endpoints of the IdP. Typically this parameter
is hardcoded to `<public_baseurl>/_synapse/client/oidc/callback`.
Yet it can be useful in certain contexts to allow a different callback
URL. For instance, if you would like to intercept the authorization code
returned from the IdP and do something with it, before eventually
calling Synapse's OIDC callback URL yourself.
This change enables enterprise use cases but does not change the default
behaviour.
---
Best reviewed commit-by-commit.
---------
Co-authored-by: Eric Eastwood <erice@element.io>
Eric Eastwood