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Implement a content type allow list for URL previews #11936

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Feb 10, 2022
Merged

Implement a content type allow list for URL previews #11936

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dkasak
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@dkasak dkasak commented Feb 8, 2022 •
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This prevents Synapse from attempting to construct URL previews for URLs to resources with content types that aren't on an allow list. This makes sense given that Synapse will never generate a URL preview for such files in the first place, and will help prevent issues with streaming media servers, such as #8302.

Signed-off-by: Denis Kasak dkasak@termina.org.uk

@dkasak dkasak requested a review from a team as a code owner February 8, 2022 11:05
clokep
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dkasak and others added 2 commits February 8, 2022 13:44
@dkasak dkasak requested a review from clokep February 8, 2022 16:44
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Looks pretty good! I made a couple of suggestions for readability!

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dkasak and others added 3 commits February 9, 2022 10:19
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LGTM! Left one minor comment, but I don't feel too strongly about it. Let me know if there are any other thoughts before we merge!

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@dkasak dkasak force-pushed the dkasak/no-previews-for-audio-video branch from bb28c26 to 1d03124 Compare February 10, 2022 14:05
@dkasak dkasak changed the title Don't attempt URL previews for audio/* and video/* content types Implement a content type allow list for URL previews Feb 10, 2022
@jvoisin
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jvoisin commented Feb 10, 2022

Stupid question, but how does that prevents an attacker from simply serving a supported content-type for their 10TB stream from /dev/null to DoS the server?

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dkasak commented Feb 10, 2022

It doesn't, but the attacker will only be DoS-ing themselves in that case. How does that help them?

Note that there are separate time and size limits too.

@dkasak dkasak enabled auto-merge (squash) February 10, 2022 15:23
@anarcat
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anarcat commented Feb 10, 2022

It doesn't, but the attacker will only be DoS-ing themselves in that case. How does that help them?

there are two ends to a potential DoS attack...

@dkasak dkasak merged commit 337f38c into develop Feb 10, 2022
@dkasak dkasak deleted the dkasak/no-previews-for-audio-video branch February 10, 2022 15:43
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dkasak commented Feb 10, 2022

Sure, but that's another case which this PR isn't meant to handle.

squahtx pushed a commit that referenced this pull request Feb 15, 2022
Merge tag 'v1.53.0rc1' into develop
85e24d9 
Synapse 1.53.0rc1 (2022-02-15)
==============================

Features
--------

- Add experimental support for sending to-device messages to application services, as specified by [MSC2409](matrix-org/matrix-spec-proposals#2409). ([\#11215](#11215), [\#11966](#11966))
- Remove account data (including client config, push rules and ignored users) upon user deactivation. ([\#11655](#11655))
- Experimental support for [MSC3666](matrix-org/matrix-spec-proposals#3666): including bundled aggregations in server side search results. ([\#11837](#11837))
- Enable cache time-based expiry by default. The `expiry_time` config flag has been superseded by `expire_caches` and `cache_entry_ttl`. ([\#11849](#11849))
- Add a callback to allow modules to allow or forbid a 3PID (email address, phone number) from being associated to a local account. ([\#11854](#11854))
- Stabilize support and remove unstable endpoints for [MSC3231](matrix-org/matrix-spec-proposals#3231). Clients must switch to the stable identifier and endpoint. See the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#stablisation-of-msc3231) for more information. ([\#11867](#11867))
- Allow modules to retrieve the current instance's server name and worker name. ([\#11868](#11868))
- Use a dedicated configurable rate limiter for 3PID invites. ([\#11892](#11892))
- Support the stable API endpoint for [MSC3283](matrix-org/matrix-spec-proposals#3283): new settings in `/capabilities` endpoint. ([\#11933](#11933), [\#11989](#11989))
- Support the `dir` parameter on the `/relations` endpoint, per [MSC3715](matrix-org/matrix-spec-proposals#3715). ([\#11941](#11941))
- Experimental implementation of [MSC3706](matrix-org/matrix-spec-proposals#3706): extensions to `/send_join` to support reduced response size. ([\#11967](#11967))

Bugfixes
--------

- Fix [MSC2716](matrix-org/matrix-spec-proposals#2716) historical messages backfilling in random order on remote homeservers. ([\#11114](#11114))
- Fix a bug introduced in Synapse 1.51.0 where incoming federation transactions containing at least one EDU would be dropped if debug logging was enabled for `synapse.8631_debug`. ([\#11890](#11890))
- Fix a long-standing bug where some unknown endpoints would return HTML error pages instead of JSON `M_UNRECOGNIZED` errors. ([\#11930](#11930))
- Implement an allow list of content types for which we will attempt to preview a URL. This prevents Synapse from making useless longer-lived connections to streaming media servers. ([\#11936](#11936))
- Fix a long-standing bug where pagination tokens from `/sync` and `/messages` could not be provided to the `/relations` API. ([\#11952](#11952))
- Require that modules register their callbacks using keyword arguments. ([\#11975](#11975))
- Fix a long-standing bug where `M_WRONG_ROOM_KEYS_VERSION` errors would not include the specced `current_version` field. ([\#11988](#11988))

Improved Documentation
----------------------

- Fix typo in User Admin API: unpind -> unbind. ([\#11859](#11859))
- Document images returned by the User List Media Admin API can include those generated by URL previews. ([\#11862](#11862))
- Remove outdated MSC1711 FAQ document. ([\#11907](#11907))
- Correct the structured logging configuration example. Contributed by Brad Jones. ([\#11946](#11946))
- Add information on the Synapse release cycle. ([\#11954](#11954))
- Fix broken link in the README to the admin API for password reset. ([\#11955](#11955))

Deprecations and Removals
-------------------------

- Drop support for `webclient` listeners and configuring `web_client_location` to a non-HTTP(S) URL. Deprecated configurations are a configuration error. ([\#11895](#11895))
- Remove deprecated `user_may_create_room_with_invites` spam checker callback. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#removal-of-user_may_create_room_with_invites) for more information. ([\#11950](#11950))
- No longer build `.deb` packages for Ubuntu 21.04 Hirsute Hippo, which has now EOLed. ([\#11961](#11961))

Internal Changes
----------------

- Enhance user registration test helpers to make them more useful for tests involving application services and devices. ([\#11615](#11615), [\#11616](#11616))
- Improve performance when fetching bundled aggregations for multiple events. ([\#11660](#11660), [\#11752](#11752))
- Fix type errors introduced by new annotations in the Prometheus Client library. ([\#11832](#11832))
- Add missing type hints to replication code. ([\#11856](#11856), [\#11938](#11938))
- Ensure that `opentracing` scopes are activated and closed at the right time. ([\#11869](#11869))
- Improve opentracing for incoming federation requests. ([\#11870](#11870))
- Improve internal docstrings in `synapse.util.caches`. ([\#11876](#11876))
- Do not needlessly clear the `get_users_in_room` and `get_users_in_room_with_profiles` caches when any room state changes. ([\#11878](#11878))
- Convert `ApplicationServiceTestCase` to use `simple_async_mock`. ([\#11880](#11880))
- Remove experimental changes to the default push rules which were introduced in Synapse 1.19.0 but never enabled. ([\#11884](#11884))
- Disable coverage calculation for olddeps build. ([\#11888](#11888))
- Preparation to support sending device list updates to application services. ([\#11905](#11905))
- Add a test that checks users receive their own device list updates down `/sync`. ([\#11909](#11909))
- Run Complement tests sequentially. ([\#11910](#11910))
- Various refactors to the application service notifier code. ([\#11911](#11911), [\#11912](#11912))
- Tests: replace mocked `Authenticator` with the real thing. ([\#11913](#11913))
- Various refactors to the typing notifications code. ([\#11914](#11914))
- Use the proper type for the `Content-Length` header in the `UploadResource`. ([\#11927](#11927))
- Remove an unnecessary ignoring of type hints due to fixes in upstream packages. ([\#11939](#11939))
- Add missing type hints. ([\#11953](#11953))
- Fix an import cycle in `synapse.event_auth`. ([\#11965](#11965))
- Unpin `frozendict` but exclude the known bad version 2.1.2. ([\#11969](#11969))
- Prepare for rename of default Complement branch. ([\#11971](#11971))
- Fetch Synapse's version using a helper from `matrix-common`. ([\#11979](#11979))
netbsd-srcmastr pushed a commit to NetBSD/pkgsrc that referenced this pull request Feb 25, 2022
@Midar
Update chat/matrix-synapse to 1.53.0
7750a4e 
Synapse 1.53.0 (2022-02-22)
===========================

No significant changes.


Synapse 1.53.0rc1 (2022-02-15)
==============================

Features
--------

- Add experimental support for sending to-device messages to application services, as specified by [MSC2409](matrix-org/matrix-spec-proposals#2409). ([\#11215](matrix-org/synapse#11215), [\#11966](matrix-org/synapse#11966))
- Remove account data (including client config, push rules and ignored users) upon user deactivation. ([\#11655](matrix-org/synapse#11655))
- Experimental support for [MSC3666](matrix-org/matrix-spec-proposals#3666): including bundled aggregations in server side search results. ([\#11837](matrix-org/synapse#11837))
- Enable cache time-based expiry by default. The `expiry_time` config flag has been superseded by `expire_caches` and `cache_entry_ttl`. ([\#11849](matrix-org/synapse#11849))
- Add a callback to allow modules to allow or forbid a 3PID (email address, phone number) from being associated to a local account. ([\#11854](matrix-org/synapse#11854))
- Stabilize support and remove unstable endpoints for [MSC3231](matrix-org/matrix-spec-proposals#3231). Clients must switch to the stable identifier and endpoint. See the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#stablisation-of-msc3231) for more information. ([\#11867](matrix-org/synapse#11867))
- Allow modules to retrieve the current instance's server name and worker name. ([\#11868](matrix-org/synapse#11868))
- Use a dedicated configurable rate limiter for 3PID invites. ([\#11892](matrix-org/synapse#11892))
- Support the stable API endpoint for [MSC3283](matrix-org/matrix-spec-proposals#3283): new settings in `/capabilities` endpoint. ([\#11933](matrix-org/synapse#11933), [\#11989](matrix-org/synapse#11989))
- Support the `dir` parameter on the `/relations` endpoint, per [MSC3715](matrix-org/matrix-spec-proposals#3715). ([\#11941](matrix-org/synapse#11941))
- Experimental implementation of [MSC3706](matrix-org/matrix-spec-proposals#3706): extensions to `/send_join` to support reduced response size. ([\#11967](matrix-org/synapse#11967))


Bugfixes
--------

- Fix [MSC2716](matrix-org/matrix-spec-proposals#2716) historical messages backfilling in random order on remote homeservers. ([\#11114](matrix-org/synapse#11114))
- Fix a bug introduced in Synapse 1.51.0 where incoming federation transactions containing at least one EDU would be dropped if debug logging was enabled for `synapse.8631_debug`. ([\#11890](matrix-org/synapse#11890))
- Fix a long-standing bug where some unknown endpoints would return HTML error pages instead of JSON `M_UNRECOGNIZED` errors. ([\#11930](matrix-org/synapse#11930))
- Implement an allow list of content types for which we will attempt to preview a URL. This prevents Synapse from making useless longer-lived connections to streaming media servers. ([\#11936](matrix-org/synapse#11936))
- Fix a long-standing bug where pagination tokens from `/sync` and `/messages` could not be provided to the `/relations` API. ([\#11952](matrix-org/synapse#11952))
- Require that modules register their callbacks using keyword arguments. ([\#11975](matrix-org/synapse#11975))
- Fix a long-standing bug where `M_WRONG_ROOM_KEYS_VERSION` errors would not include the specced `current_version` field. ([\#11988](matrix-org/synapse#11988))


Improved Documentation
----------------------

- Fix typo in User Admin API: unpind -> unbind. ([\#11859](matrix-org/synapse#11859))
- Document images returned by the User List Media Admin API can include those generated by URL previews. ([\#11862](matrix-org/synapse#11862))
- Remove outdated MSC1711 FAQ document. ([\#11907](matrix-org/synapse#11907))
- Correct the structured logging configuration example. Contributed by Brad Jones. ([\#11946](matrix-org/synapse#11946))
- Add information on the Synapse release cycle. ([\#11954](matrix-org/synapse#11954))
- Fix broken link in the README to the admin API for password reset. ([\#11955](matrix-org/synapse#11955))


Deprecations and Removals
-------------------------

- Drop support for `webclient` listeners and configuring `web_client_location` to a non-HTTP(S) URL. Deprecated configurations are a configuration error. ([\#11895](matrix-org/synapse#11895))
- Remove deprecated `user_may_create_room_with_invites` spam checker callback. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#removal-of-user_may_create_room_with_invites) for more information. ([\#11950](matrix-org/synapse#11950))
- No longer build `.deb` packages for Ubuntu 21.04 Hirsute Hippo, which has now EOLed. ([\#11961](matrix-org/synapse#11961))


Internal Changes
----------------

- Enhance user registration test helpers to make them more useful for tests involving application services and devices. ([\#11615](matrix-org/synapse#11615), [\#11616](matrix-org/synapse#11616))
- Improve performance when fetching bundled aggregations for multiple events. ([\#11660](matrix-org/synapse#11660), [\#11752](matrix-org/synapse#11752))
- Fix type errors introduced by new annotations in the Prometheus Client library. ([\#11832](matrix-org/synapse#11832))
- Add missing type hints to replication code. ([\#11856](matrix-org/synapse#11856), [\#11938](matrix-org/synapse#11938))
- Ensure that `opentracing` scopes are activated and closed at the right time. ([\#11869](matrix-org/synapse#11869))
- Improve opentracing for incoming federation requests. ([\#11870](matrix-org/synapse#11870))
- Improve internal docstrings in `synapse.util.caches`. ([\#11876](matrix-org/synapse#11876))
- Do not needlessly clear the `get_users_in_room` and `get_users_in_room_with_profiles` caches when any room state changes. ([\#11878](matrix-org/synapse#11878))
- Convert `ApplicationServiceTestCase` to use `simple_async_mock`. ([\#11880](matrix-org/synapse#11880))
- Remove experimental changes to the default push rules which were introduced in Synapse 1.19.0 but never enabled. ([\#11884](matrix-org/synapse#11884))
- Disable coverage calculation for olddeps build. ([\#11888](matrix-org/synapse#11888))
- Preparation to support sending device list updates to application services. ([\#11905](matrix-org/synapse#11905))
- Add a test that checks users receive their own device list updates down `/sync`. ([\#11909](matrix-org/synapse#11909))
- Run Complement tests sequentially. ([\#11910](matrix-org/synapse#11910))
- Various refactors to the application service notifier code. ([\#11911](matrix-org/synapse#11911), [\#11912](matrix-org/synapse#11912))
- Tests: replace mocked `Authenticator` with the real thing. ([\#11913](matrix-org/synapse#11913))
- Various refactors to the typing notifications code. ([\#11914](matrix-org/synapse#11914))
- Use the proper type for the `Content-Length` header in the `UploadResource`. ([\#11927](matrix-org/synapse#11927))
- Remove an unnecessary ignoring of type hints due to fixes in upstream packages. ([\#11939](matrix-org/synapse#11939))
- Add missing type hints. ([\#11953](matrix-org/synapse#11953))
- Fix an import cycle in `synapse.event_auth`. ([\#11965](matrix-org/synapse#11965))
- Unpin `frozendict` but exclude the known bad version 2.1.2. ([\#11969](matrix-org/synapse#11969))
- Prepare for rename of default Complement branch. ([\#11971](matrix-org/synapse#11971))
- Fetch Synapse's version using a helper from `matrix-common`. ([\#11979](matrix-org/synapse#11979))


Synapse 1.52.0 (2022-02-08)
===========================

No significant changes since 1.52.0rc1.

Note that [Twisted 22.1.0](https://github.com/twisted/twisted/releases/tag/twisted-22.1.0)
has recently been released, which fixes a [security issue](GHSA-92x2-jw7w-xvvx)
within the Twisted library. We do not believe Synapse is affected by this vulnerability,
though we advise server administrators who installed Synapse via pip to upgrade Twisted
with `pip install --upgrade Twisted` as a matter of good practice. The Docker image
`matrixdotorg/synapse` and the Debian packages from `packages.matrix.org` are using the
updated library.


Synapse 1.52.0rc1 (2022-02-01)
==============================

Features
--------

- Remove account data (including client config, push rules and ignored users) upon user deactivation. ([\#11621](matrix-org/synapse#11621), [\#11788](matrix-org/synapse#11788), [\#11789](matrix-org/synapse#11789))
- Add an admin API to reset connection timeouts for remote server. ([\#11639](matrix-org/synapse#11639))
- Add an admin API to get a list of rooms that federate with a given remote homeserver. ([\#11658](matrix-org/synapse#11658))
- Add a config flag to inhibit `M_USER_IN_USE` during registration. ([\#11743](matrix-org/synapse#11743))
- Add a module callback to set username at registration. ([\#11790](matrix-org/synapse#11790))
- Allow configuring a maximum file size as well as a list of allowed content types for avatars. ([\#11846](matrix-org/synapse#11846))


Bugfixes
--------

- Include the bundled aggregations in the `/sync` response, per [MSC2675](matrix-org/matrix-spec-proposals#2675). ([\#11612](matrix-org/synapse#11612))
- Fix a long-standing bug when previewing Reddit URLs which do not contain an image. ([\#11767](matrix-org/synapse#11767))
- Fix a long-standing bug that media streams could cause long-lived connections when generating URL previews. ([\#11784](matrix-org/synapse#11784))
- Include a `prev_content` field in state events sent to Application Services. Contributed by @totallynotvaishnav. ([\#11798](matrix-org/synapse#11798))
- Fix a bug introduced in Synapse 0.33.3 causing requests to sometimes log strings such as `HTTPStatus.OK` instead of integer status codes. ([\#11827](matrix-org/synapse#11827))


Improved Documentation
----------------------

- Update pypi installation docs to indicate that we now support Python 3.10. ([\#11820](matrix-org/synapse#11820))
- Add missing steps to the contribution submission process in the documentation.  Contributed by @sequentialread. ([\#11821](matrix-org/synapse#11821))
- Remove not needed old table of contents in documentation. ([\#11860](matrix-org/synapse#11860))
- Consolidate the `access_token` information at the top of each relevant page in the Admin API documentation. ([\#11861](matrix-org/synapse#11861))


Deprecations and Removals
-------------------------

- Drop support for Python 3.6, which is EOL. ([\#11683](matrix-org/synapse#11683))
- Remove the `experimental_msc1849_support_enabled` flag as the features are now stable. ([\#11843](matrix-org/synapse#11843))


Internal Changes
----------------

- Preparation for database schema simplifications: add `state_key` and `rejection_reason` columns to `events` table. ([\#11792](matrix-org/synapse#11792))
- Add `FrozenEvent.get_state_key` and use it in a couple of places. ([\#11793](matrix-org/synapse#11793))
- Preparation for database schema simplifications: stop reading from `event_reference_hashes`. ([\#11794](matrix-org/synapse#11794))
- Drop unused table `public_room_list_stream`. ([\#11795](matrix-org/synapse#11795))
- Preparation for reducing Postgres serialization errors: allow setting transaction isolation level. Contributed by Nick @ Beeper. ([\#11799](matrix-org/synapse#11799), [\#11847](matrix-org/synapse#11847))
- Docker: skip the initial amd64-only build and go straight to multiarch. ([\#11810](matrix-org/synapse#11810))
- Run Complement on the Github Actions VM and not inside a Docker container. ([\#11811](matrix-org/synapse#11811))
- Log module names at startup. ([\#11813](matrix-org/synapse#11813))
- Improve type safety of bundled aggregations code. ([\#11815](matrix-org/synapse#11815))
- Correct a type annotation in the event validation logic. ([\#11817](matrix-org/synapse#11817), [\#11830](matrix-org/synapse#11830))
- Minor updates and documentation for database schema delta files. ([\#11823](matrix-org/synapse#11823))
- Workaround a type annotation problem in `prometheus_client` 0.13.0. ([\#11834](matrix-org/synapse#11834))
- Minor performance improvement in room state lookup. ([\#11836](matrix-org/synapse#11836))
- Fix some indentation inconsistencies in the sample config. ([\#11838](matrix-org/synapse#11838))
- Add type hints to `tests/rest/admin`. ([\#11851](matrix-org/synapse#11851))
Fizzadar added a commit to Fizzadar/synapse that referenced this pull request Mar 7, 2022
@Fizzadar
Merge tag 'v1.53.0' into beeper-master
2c92316 
Synapse 1.53.0 (2022-02-22)
===========================

No significant changes.

Synapse 1.53.0rc1 (2022-02-15)
==============================

Features
--------

- Add experimental support for sending to-device messages to application services, as specified by [MSC2409](matrix-org/matrix-spec-proposals#2409). ([\matrix-org#11215](matrix-org#11215), [\matrix-org#11966](matrix-org#11966))
- Remove account data (including client config, push rules and ignored users) upon user deactivation. ([\matrix-org#11655](matrix-org#11655))
- Experimental support for [MSC3666](matrix-org/matrix-spec-proposals#3666): including bundled aggregations in server side search results. ([\matrix-org#11837](matrix-org#11837))
- Enable cache time-based expiry by default. The `expiry_time` config flag has been superseded by `expire_caches` and `cache_entry_ttl`. ([\matrix-org#11849](matrix-org#11849))
- Add a callback to allow modules to allow or forbid a 3PID (email address, phone number) from being associated to a local account. ([\matrix-org#11854](matrix-org#11854))
- Stabilize support and remove unstable endpoints for [MSC3231](matrix-org/matrix-spec-proposals#3231). Clients must switch to the stable identifier and endpoint. See the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#stablisation-of-msc3231) for more information. ([\matrix-org#11867](matrix-org#11867))
- Allow modules to retrieve the current instance's server name and worker name. ([\matrix-org#11868](matrix-org#11868))
- Use a dedicated configurable rate limiter for 3PID invites. ([\matrix-org#11892](matrix-org#11892))
- Support the stable API endpoint for [MSC3283](matrix-org/matrix-spec-proposals#3283): new settings in `/capabilities` endpoint. ([\matrix-org#11933](matrix-org#11933), [\matrix-org#11989](matrix-org#11989))
- Support the `dir` parameter on the `/relations` endpoint, per [MSC3715](matrix-org/matrix-spec-proposals#3715). ([\matrix-org#11941](matrix-org#11941))
- Experimental implementation of [MSC3706](matrix-org/matrix-spec-proposals#3706): extensions to `/send_join` to support reduced response size. ([\matrix-org#11967](matrix-org#11967))

Bugfixes
--------

- Fix [MSC2716](matrix-org/matrix-spec-proposals#2716) historical messages backfilling in random order on remote homeservers. ([\matrix-org#11114](matrix-org#11114))
- Fix a bug introduced in Synapse 1.51.0 where incoming federation transactions containing at least one EDU would be dropped if debug logging was enabled for `synapse.8631_debug`. ([\matrix-org#11890](matrix-org#11890))
- Fix a long-standing bug where some unknown endpoints would return HTML error pages instead of JSON `M_UNRECOGNIZED` errors. ([\matrix-org#11930](matrix-org#11930))
- Implement an allow list of content types for which we will attempt to preview a URL. This prevents Synapse from making useless longer-lived connections to streaming media servers. ([\matrix-org#11936](matrix-org#11936))
- Fix a long-standing bug where pagination tokens from `/sync` and `/messages` could not be provided to the `/relations` API. ([\matrix-org#11952](matrix-org#11952))
- Require that modules register their callbacks using keyword arguments. ([\matrix-org#11975](matrix-org#11975))
- Fix a long-standing bug where `M_WRONG_ROOM_KEYS_VERSION` errors would not include the specced `current_version` field. ([\matrix-org#11988](matrix-org#11988))

Improved Documentation
----------------------

- Fix typo in User Admin API: unpind -> unbind. ([\matrix-org#11859](matrix-org#11859))
- Document images returned by the User List Media Admin API can include those generated by URL previews. ([\matrix-org#11862](matrix-org#11862))
- Remove outdated MSC1711 FAQ document. ([\matrix-org#11907](matrix-org#11907))
- Correct the structured logging configuration example. Contributed by Brad Jones. ([\matrix-org#11946](matrix-org#11946))
- Add information on the Synapse release cycle. ([\matrix-org#11954](matrix-org#11954))
- Fix broken link in the README to the admin API for password reset. ([\matrix-org#11955](matrix-org#11955))

Deprecations and Removals
-------------------------

- Drop support for `webclient` listeners and configuring `web_client_location` to a non-HTTP(S) URL. Deprecated configurations are a configuration error. ([\matrix-org#11895](matrix-org#11895))
- Remove deprecated `user_may_create_room_with_invites` spam checker callback. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#removal-of-user_may_create_room_with_invites) for more information. ([\matrix-org#11950](matrix-org#11950))
- No longer build `.deb` packages for Ubuntu 21.04 Hirsute Hippo, which has now EOLed. ([\matrix-org#11961](matrix-org#11961))

Internal Changes
----------------

- Enhance user registration test helpers to make them more useful for tests involving application services and devices. ([\matrix-org#11615](matrix-org#11615), [\matrix-org#11616](matrix-org#11616))
- Improve performance when fetching bundled aggregations for multiple events. ([\matrix-org#11660](matrix-org#11660), [\matrix-org#11752](matrix-org#11752))
- Fix type errors introduced by new annotations in the Prometheus Client library. ([\matrix-org#11832](matrix-org#11832))
- Add missing type hints to replication code. ([\matrix-org#11856](matrix-org#11856), [\matrix-org#11938](matrix-org#11938))
- Ensure that `opentracing` scopes are activated and closed at the right time. ([\matrix-org#11869](matrix-org#11869))
- Improve opentracing for incoming federation requests. ([\matrix-org#11870](matrix-org#11870))
- Improve internal docstrings in `synapse.util.caches`. ([\matrix-org#11876](matrix-org#11876))
- Do not needlessly clear the `get_users_in_room` and `get_users_in_room_with_profiles` caches when any room state changes. ([\matrix-org#11878](matrix-org#11878))
- Convert `ApplicationServiceTestCase` to use `simple_async_mock`. ([\matrix-org#11880](matrix-org#11880))
- Remove experimental changes to the default push rules which were introduced in Synapse 1.19.0 but never enabled. ([\matrix-org#11884](matrix-org#11884))
- Disable coverage calculation for olddeps build. ([\matrix-org#11888](matrix-org#11888))
- Preparation to support sending device list updates to application services. ([\matrix-org#11905](matrix-org#11905))
- Add a test that checks users receive their own device list updates down `/sync`. ([\matrix-org#11909](matrix-org#11909))
- Run Complement tests sequentially. ([\matrix-org#11910](matrix-org#11910))
- Various refactors to the application service notifier code. ([\matrix-org#11911](matrix-org#11911), [\matrix-org#11912](matrix-org#11912))
- Tests: replace mocked `Authenticator` with the real thing. ([\matrix-org#11913](matrix-org#11913))
- Various refactors to the typing notifications code. ([\matrix-org#11914](matrix-org#11914))
- Use the proper type for the `Content-Length` header in the `UploadResource`. ([\matrix-org#11927](matrix-org#11927))
- Remove an unnecessary ignoring of type hints due to fixes in upstream packages. ([\matrix-org#11939](matrix-org#11939))
- Add missing type hints. ([\matrix-org#11953](matrix-org#11953))
- Fix an import cycle in `synapse.event_auth`. ([\matrix-org#11965](matrix-org#11965))
- Unpin `frozendict` but exclude the known bad version 2.1.2. ([\matrix-org#11969](matrix-org#11969))
- Prepare for rename of default Complement branch. ([\matrix-org#11971](matrix-org#11971))
- Fetch Synapse's version using a helper from `matrix-common`. ([\matrix-org#11979](matrix-org#11979))
babolivier added a commit to matrix-org/synapse-dinsic that referenced this pull request Apr 28, 2022
@babolivier
Merge tag 'v1.53.0' into babolivier/dinsic_1.58
c3ee93e 
Synapse 1.53.0 (2022-02-22)
===========================

No significant changes.

Synapse 1.53.0rc1 (2022-02-15)
==============================

Features
--------

- Add experimental support for sending to-device messages to application services, as specified by [MSC2409](matrix-org/matrix-spec-proposals#2409). ([\#11215](matrix-org/synapse#11215), [\#11966](matrix-org/synapse#11966))
- Remove account data (including client config, push rules and ignored users) upon user deactivation. ([\#11655](matrix-org/synapse#11655))
- Experimental support for [MSC3666](matrix-org/matrix-spec-proposals#3666): including bundled aggregations in server side search results. ([\#11837](matrix-org/synapse#11837))
- Enable cache time-based expiry by default. The `expiry_time` config flag has been superseded by `expire_caches` and `cache_entry_ttl`. ([\#11849](matrix-org/synapse#11849))
- Add a callback to allow modules to allow or forbid a 3PID (email address, phone number) from being associated to a local account. ([\#11854](matrix-org/synapse#11854))
- Stabilize support and remove unstable endpoints for [MSC3231](matrix-org/matrix-spec-proposals#3231). Clients must switch to the stable identifier and endpoint. See the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#stablisation-of-msc3231) for more information. ([\#11867](matrix-org/synapse#11867))
- Allow modules to retrieve the current instance's server name and worker name. ([\#11868](matrix-org/synapse#11868))
- Use a dedicated configurable rate limiter for 3PID invites. ([\#11892](matrix-org/synapse#11892))
- Support the stable API endpoint for [MSC3283](matrix-org/matrix-spec-proposals#3283): new settings in `/capabilities` endpoint. ([\#11933](matrix-org/synapse#11933), [\#11989](matrix-org/synapse#11989))
- Support the `dir` parameter on the `/relations` endpoint, per [MSC3715](matrix-org/matrix-spec-proposals#3715). ([\#11941](matrix-org/synapse#11941))
- Experimental implementation of [MSC3706](matrix-org/matrix-spec-proposals#3706): extensions to `/send_join` to support reduced response size. ([\#11967](matrix-org/synapse#11967))

Bugfixes
--------

- Fix [MSC2716](matrix-org/matrix-spec-proposals#2716) historical messages backfilling in random order on remote homeservers. ([\#11114](matrix-org/synapse#11114))
- Fix a bug introduced in Synapse 1.51.0 where incoming federation transactions containing at least one EDU would be dropped if debug logging was enabled for `synapse.8631_debug`. ([\#11890](matrix-org/synapse#11890))
- Fix a long-standing bug where some unknown endpoints would return HTML error pages instead of JSON `M_UNRECOGNIZED` errors. ([\#11930](matrix-org/synapse#11930))
- Implement an allow list of content types for which we will attempt to preview a URL. This prevents Synapse from making useless longer-lived connections to streaming media servers. ([\#11936](matrix-org/synapse#11936))
- Fix a long-standing bug where pagination tokens from `/sync` and `/messages` could not be provided to the `/relations` API. ([\#11952](matrix-org/synapse#11952))
- Require that modules register their callbacks using keyword arguments. ([\#11975](matrix-org/synapse#11975))
- Fix a long-standing bug where `M_WRONG_ROOM_KEYS_VERSION` errors would not include the specced `current_version` field. ([\#11988](matrix-org/synapse#11988))

Improved Documentation
----------------------

- Fix typo in User Admin API: unpind -> unbind. ([\#11859](matrix-org/synapse#11859))
- Document images returned by the User List Media Admin API can include those generated by URL previews. ([\#11862](matrix-org/synapse#11862))
- Remove outdated MSC1711 FAQ document. ([\#11907](matrix-org/synapse#11907))
- Correct the structured logging configuration example. Contributed by Brad Jones. ([\#11946](matrix-org/synapse#11946))
- Add information on the Synapse release cycle. ([\#11954](matrix-org/synapse#11954))
- Fix broken link in the README to the admin API for password reset. ([\#11955](matrix-org/synapse#11955))

Deprecations and Removals
-------------------------

- Drop support for `webclient` listeners and configuring `web_client_location` to a non-HTTP(S) URL. Deprecated configurations are a configuration error. ([\#11895](matrix-org/synapse#11895))
- Remove deprecated `user_may_create_room_with_invites` spam checker callback. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#removal-of-user_may_create_room_with_invites) for more information. ([\#11950](matrix-org/synapse#11950))
- No longer build `.deb` packages for Ubuntu 21.04 Hirsute Hippo, which has now EOLed. ([\#11961](matrix-org/synapse#11961))

Internal Changes
----------------

- Enhance user registration test helpers to make them more useful for tests involving application services and devices. ([\#11615](matrix-org/synapse#11615), [\#11616](matrix-org/synapse#11616))
- Improve performance when fetching bundled aggregations for multiple events. ([\#11660](matrix-org/synapse#11660), [\#11752](matrix-org/synapse#11752))
- Fix type errors introduced by new annotations in the Prometheus Client library. ([\#11832](matrix-org/synapse#11832))
- Add missing type hints to replication code. ([\#11856](matrix-org/synapse#11856), [\#11938](matrix-org/synapse#11938))
- Ensure that `opentracing` scopes are activated and closed at the right time. ([\#11869](matrix-org/synapse#11869))
- Improve opentracing for incoming federation requests. ([\#11870](matrix-org/synapse#11870))
- Improve internal docstrings in `synapse.util.caches`. ([\#11876](matrix-org/synapse#11876))
- Do not needlessly clear the `get_users_in_room` and `get_users_in_room_with_profiles` caches when any room state changes. ([\#11878](matrix-org/synapse#11878))
- Convert `ApplicationServiceTestCase` to use `simple_async_mock`. ([\#11880](matrix-org/synapse#11880))
- Remove experimental changes to the default push rules which were introduced in Synapse 1.19.0 but never enabled. ([\#11884](matrix-org/synapse#11884))
- Disable coverage calculation for olddeps build. ([\#11888](matrix-org/synapse#11888))
- Preparation to support sending device list updates to application services. ([\#11905](matrix-org/synapse#11905))
- Add a test that checks users receive their own device list updates down `/sync`. ([\#11909](matrix-org/synapse#11909))
- Run Complement tests sequentially. ([\#11910](matrix-org/synapse#11910))
- Various refactors to the application service notifier code. ([\#11911](matrix-org/synapse#11911), [\#11912](matrix-org/synapse#11912))
- Tests: replace mocked `Authenticator` with the real thing. ([\#11913](matrix-org/synapse#11913))
- Various refactors to the typing notifications code. ([\#11914](matrix-org/synapse#11914))
- Use the proper type for the `Content-Length` header in the `UploadResource`. ([\#11927](matrix-org/synapse#11927))
- Remove an unnecessary ignoring of type hints due to fixes in upstream packages. ([\#11939](matrix-org/synapse#11939))
- Add missing type hints. ([\#11953](matrix-org/synapse#11953))
- Fix an import cycle in `synapse.event_auth`. ([\#11965](matrix-org/synapse#11965))
- Unpin `frozendict` but exclude the known bad version 2.1.2. ([\#11969](matrix-org/synapse#11969))
- Prepare for rename of default Complement branch. ([\#11971](matrix-org/synapse#11971))
- Fetch Synapse's version using a helper from `matrix-common`. ([\#11979](matrix-org/synapse#11979))
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@dkasak @jvoisin @anarcat @clokep