Commit Graph

2385 Commits

Author SHA1 Message Date
Robert Long
9b683ea80f
Add Cross-Origin-Resource-Policy header to thumbnail and download media endpoints (#12944) 2022-06-27 14:44:05 +01:00
santhoshivan23
d54909956e
validate room alias before interacting with the room directory (#13106) 2022-06-22 15:32:18 +01:00
Quentin Gliech
73af10f419
Simplify the alias deletion logic as an application service. (#13093) 2022-06-17 12:19:22 +01:00
Quentin Gliech
c6d6176411
Allow MSC3030 'timestamp_to_event' calls from anyone on world-readable rooms. (#13062)
Signed-off-by: Quentin Gliech <quenting@element.io>
2022-06-17 11:39:26 +01:00
Patrick Cloke
0fcc0ae37c
Improve URL previews for sites with only Twitter card information. (#13056)
Pull out `twitter:` meta tags when generating a preview and
use it to augment any `og:` meta tags.

Prefers Open Graph information over Twitter card information.
2022-06-16 07:41:57 -04:00
Jacek Kuśnierz
0ef1307619
Add custom well-known (#13035)
Co-authored-by: David Robertson <david.m.robertson1@gmail.com>
2022-06-16 11:48:18 +01:00
Hannes Lerchl
7d99414edf
Replace pyjwt with authlib in org.matrix.login.jwt (#13011) 2022-06-15 16:45:16 +00:00
David Robertson
c99b511db9
Fix destination_is errors seen in sentry. (#13041)
* Rename test_fedclient to match its source file
* Require at least one destination to be truthy
* Explicitly validate user ID in profile endpoint GETs
Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
2022-06-14 18:28:26 +01:00
Quentin Gliech
fe1daad672
Move the "email unsubscribe" resource, refactor the macaroon generator & simplify the access token verification logic. (#12986)
This simplifies the access token verification logic by removing the `rights`
parameter which was only ever used for the unsubscribe link in email
notifications. The latter has been moved under the `/_synapse` namespace,
since it is not a standard API.

This also makes the email verification link more secure, by embedding the
app_id and pushkey in the macaroon and verifying it. This prevents the user
from tampering the query parameters of that unsubscribe link.

Macaroon generation is refactored:

- Centralised all macaroon generation and verification logic to the
  `MacaroonGenerator`
- Moved to `synapse.utils`
- Changed the constructor to require only a `Clock`, hostname, and a secret key
  (instead of a full `Homeserver`).
- Added tests for all methods.
2022-06-14 09:12:08 -04:00
David Teller
a164a46038
Uniformize spam-checker API, part 4: port other spam-checker callbacks to return Union[Allow, Codes]. (#12857)
Co-authored-by: Brendan Abolivier <babolivier@matrix.org>
2022-06-13 18:16:16 +00:00
Patrick Cloke
dd2d66b0c9
Move the (unstable) dir parameter for /relations behind an experimental flag. (#12984)
MSC3715 defines this parameter, but the unstable version of it should be
behind an experimental flag.
2022-06-08 09:00:35 -04:00
David Robertson
f30bcbd84a
Fix Synapse git info missing in version strings (#12973) 2022-06-07 15:24:11 +01:00
Patrick Cloke
9dc3293e0b
Consolidate the logic of delete_device/delete_devices. (#12970)
By always using delete_devices and sometimes passing a list
with a single device ID.

Previously these methods had gotten out of sync with each
other and it seems there's little benefit to the single-device
variant.
2022-06-07 07:43:35 -04:00
Andrew Morgan
a47636c570
Prevent local quarantined media from being claimed by media retention (#12972) 2022-06-07 10:53:47 +00:00
Patrick Cloke
148fe58a24
Do not break URL previews if an image is unreachable. (#12950)
Avoid breaking a URL preview completely if the chosen image 404s
or is unreachable for some other reason (e.g. DNS).
2022-06-06 07:46:04 -04:00
Jan Christian Grünhage
fcd8703508
Allow updating passwords using the admin api without logging out devices (#12952) 2022-06-06 12:10:13 +01:00
Erik Johnston
e3163e2e11
Reduce the amount of state we pull from the DB (#12811) 2022-06-06 09:24:12 +01:00
Patrick Cloke
01df5bacac
Improve URL previews for some pages (#12951)
* Skip `og` and `meta` tags where the value is empty.
* Fallback to the favicon if there are no other images.
* Ignore tags meant for navigation.
2022-06-03 12:09:12 -04:00
Erik Johnston
888a29f412
Wait for lazy join to complete when getting current state (#12872) 2022-06-01 16:02:53 +01:00
Erik Johnston
5949ab86f8
Fix potential thumbnail memory leaks. (#12932) 2022-06-01 10:57:49 +00:00
Andrew Morgan
2fc787c341
Add config options for media retention (#12732) 2022-05-31 16:35:29 +00:00
Jonathan de Jong
6be4953b99
Mutual rooms: Remove dependency on user directory (#12836) 2022-05-30 10:05:31 +01:00
Patrick Cloke
c52abc1cfd
Additional constants for EDU types. (#12884)
Instead of hard-coding strings in many places.
2022-05-27 07:14:36 -04:00
Sean Quah
053ca5f3ca Synapse 1.60.0rc2 (2022-05-27)
==============================
 
 This release of Synapse adds a unique index to the `state_group_edges` table, in
 order to prevent accidentally introducing duplicate information (for example,
 because a database backup was restored multiple times). If your Synapse database
 already has duplicate rows in this table, this could fail with an error and
 require manual remediation.
 
 Additionally, the signature of the `check_event_for_spam` module callback has changed.
 The previous signature has been deprecated and remains working for now. Module authors
 should update their modules to use the new signature where possible.
 
 See [the upgrade notes](https://github.com/matrix-org/synapse/blob/develop/docs/upgrade.md#upgrading-to-v1600)
 for more details.
 
 Features
 --------
 
 - Add an option allowing users to use their password to reauthenticate for privileged actions even though password login is disabled. ([\#12883](https://github.com/matrix-org/synapse/issues/12883))
 
 Bugfixes
 --------
 
 - Explicitly close `ijson` coroutines once we are done with them, instead of leaving the garbage collector to close them. ([\#12875](https://github.com/matrix-org/synapse/issues/12875))
 
 Internal Changes
 ----------------
 
 - Improve URL previews by not including the content of media tags in the generated description. ([\#12887](https://github.com/matrix-org/synapse/issues/12887))
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Merge tag 'v1.60.0rc2' into develop

Synapse 1.60.0rc2 (2022-05-27)
==============================

This release of Synapse adds a unique index to the `state_group_edges` table, in
order to prevent accidentally introducing duplicate information (for example,
because a database backup was restored multiple times). If your Synapse database
already has duplicate rows in this table, this could fail with an error and
require manual remediation.

Additionally, the signature of the `check_event_for_spam` module callback has changed.
The previous signature has been deprecated and remains working for now. Module authors
should update their modules to use the new signature where possible.

See [the upgrade notes](https://github.com/matrix-org/synapse/blob/develop/docs/upgrade.md#upgrading-to-v1600)
for more details.

Features
--------

- Add an option allowing users to use their password to reauthenticate for privileged actions even though password login is disabled. ([\#12883](https://github.com/matrix-org/synapse/issues/12883))

Bugfixes
--------

- Explicitly close `ijson` coroutines once we are done with them, instead of leaving the garbage collector to close them. ([\#12875](https://github.com/matrix-org/synapse/issues/12875))

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

- Improve URL previews by not including the content of media tags in the generated description. ([\#12887](https://github.com/matrix-org/synapse/issues/12887))
2022-05-27 12:07:18 +01:00
reivilibre
317248d42c
Improve URL previews by not including the content of media tags in the generated description. (#12887) 2022-05-26 16:07:27 +01:00
Patrick Cloke
1885ee0113
Remove unstable APIs for /hierarchy. (#12851)
Removes the unstable endpoint as well as a duplicated field
which was modified during stabilization.
2022-05-26 07:10:28 -04:00
Patrick Cloke
a8db8c6eba
Remove user-visible groups/communities code (#12553)
Makes it so that groups/communities no longer exist from a user-POV. E.g. we remove:

* All API endpoints (including Client-Server, Server-Server, and admin).
* Documented configuration options (and the experimental flag, which is now unused).
* Special handling during room upgrades.
* The `groups` section of the `/sync` response.
2022-05-25 07:53:40 -04:00
David Robertson
e7c77a8750
Correct annotation of _iterate_over_text (#12860) 2022-05-24 18:17:21 +00:00
David Robertson
d4713d3e33
Discard null-containing strings before updating the user directory (#12762) 2022-05-18 11:28:14 +01:00
Dirk Klimpel
6edefef602
Add some type hints to datastore (#12717) 2022-05-17 15:29:06 +01:00
Andrew Morgan
57f6c496d0
URL preview cache expiry logs: INFO -> DEBUG, text clarifications (#12720) 2022-05-12 18:16:32 +01:00
Sean Quah
bf7ce92bf7
Enable cancellation of GET /members and GET /state requests (#12708)
Enable cancellation of `GET /rooms/$room_id/members`,
`GET /rooms/$room_id/state` and
`GET /rooms/$room_id/state/$state_key/*` requests.

Signed-off-by: Sean Quah <seanq@element.io>
2022-05-11 17:22:34 +01:00
David Robertson
db10f2c037
No longer permit empty body when sending receipts (#12709) 2022-05-11 15:34:17 +00:00
David Robertson
8de0facaae
Fix mypy against latest pillow stubs (#12671) 2022-05-09 10:48:14 +00:00
David Robertson
fa0eab9c8e
Use ParamSpec in a few places (#12667) 2022-05-09 10:27:39 +00:00
Erik Johnston
c5969b346d
Don't error on unknown receipt types (#12670)
Fixes #12669
2022-05-09 11:09:19 +01:00
Šimon Brandner
9ae0253f4e
Use private instead of hidden in MSC2285 related code. (#12635) 2022-05-05 12:31:25 +00:00
Will Hunt
cc7656099d
Fix typo in some instances of enable_registration_token_3pid_bypass. (#12639) 2022-05-05 07:11:52 -04:00
Patrick Cloke
7fbf42499d
Use getClientAddress instead of getClientIP. (#12599)
getClientIP was deprecated in Twisted 18.4.0, which also added
getClientAddress. The Synapse minimum version for Twisted is
currently 18.9.0, so all supported versions have the new API.
2022-05-04 14:11:21 -04:00
Šimon Brandner
116a4c8340
Implement changes to MSC2285 (hidden read receipts) (#12168)
* Changes hidden read receipts to be a separate receipt type
  (instead of a field on `m.read`).
* Updates the `/receipts` endpoint to accept `m.fully_read`.
2022-05-04 11:59:22 -04:00
Patrick Cloke
ba3fd54bad
Remove unstable/unspecced login types. (#12597)
* `m.login.jwt`, which was never specced and has been deprecated
  since Synapse 1.16.0. (`org.matrix.login.jwt` can be used instead.)
* `uk.half-shot.msc2778.login.application_service`, which was
  stabilized as part of the Matrix spec v1.2 release.
2022-05-04 13:53:21 +00:00
Patrick Cloke
aa5f5ede33
Remove unstable identifiers for MSC3069. (#12596) 2022-05-03 12:43:12 -04:00
Brendan Abolivier
5ef673de4f
Add a module API to allow modules to edit push rule actions (#12406)
Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
2022-04-27 13:55:33 +00:00
Will Hunt
e8d1ec0e92
Add option to enable token registration without requiring 3pids (#12526) 2022-04-27 12:57:53 +00:00
Tulir Asokan
4bc8cb4669
Implement MSC2815: allow room moderators to view redacted event content (#12427)
Implements matrix-org/matrix-spec-proposals#2815

Signed-off-by: Tulir Asokan <tulir@maunium.net>
2022-04-20 12:57:39 +01:00
Richard van der Hoff
b80bb7e452
Fix /room/.../event/... to return the *original* event after any edits (#12476)
This is what the MSC (now) requires. Fixes https://github.com/matrix-org/synapse/issues/10310.
2022-04-19 16:42:19 +01:00
Shay
8e2759f2d8
Limit device_id size to 512B (#12454)
*
2022-04-13 10:04:01 -07:00
David Baker
73d8ded0b0
Prevent a sync request from removing a user's busy presence status (#12213)
In trying to use the MSC3026 busy presence status, the user's status
would be set back to 'online' next time they synced. This change makes
it so that syncing does not affect a user's presence status if it
is currently set to 'busy': it must be removed through the presence
API.

The MSC defers to implementations on the behaviour of busy presence,
so this ought to remain compatible with the MSC.
2022-04-13 16:21:07 +01:00
Jonathan de Jong
36d8b83888
Rename Mutual Rooms unstable_features flag to match MSC (#12445)
Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>
2022-04-13 10:32:44 +01:00
Patrick Cloke
86cf6a3a17
Remove references to unstable identifiers from MSC3440. (#12382)
Removes references to unstable thread relation, unstable
identifiers for filtering parameters, and the experimental
config flag.
2022-04-12 08:42:03 -04:00
Patrick Cloke
1a90c1e3af
Do not add groups to sync results if disabled. (#12408) 2022-04-07 09:29:56 -04:00
Patrick Cloke
0bcb651b3f
Support the v1 endpoint for /relations. (#12403)
Now that MSC2675 has passed FCP and the implementation is
compliant with the final version.
2022-04-07 07:08:23 -04:00
Sean Quah
800ba87cc8
Refactor and convert Linearizer to async (#12357)
Refactor and convert `Linearizer` to async. This makes a `Linearizer`
cancellation bug easier to fix.

Also refactor to use an async context manager, which eliminates an
unlikely footgun where code that doesn't immediately use the context
manager could forget to release the lock.

Signed-off-by: Sean Quah <seanq@element.io>
2022-04-05 15:43:52 +01:00
Patrick Cloke
bebf994ee8
Move MSC2654 support behind an experimental configuration flag. (#12295)
To match the current thinking on disabling experimental features by default.
2022-03-31 15:05:13 -04:00
Brendan Abolivier
f96b85eca8
Ensure the type of URL attributes is always str when matching against preview blacklist (#12333) 2022-03-31 11:49:49 +02:00
Patrick Cloke
c31c1091d4
Remove the unused and unstable /aggregations endpoint. (#12293)
This endpoint was removed from MSC2675 before it was approved.
It is currently unspecified (even in any MSCs) and therefore subject to
removal. It is not implemented by any known clients.

This also changes the bundled aggregation format for `m.annotation`,
which previously included pagination tokens for the `/aggregations`
endpoint, which are no longer useful.
2022-03-30 11:45:32 -04:00
David Robertson
e0bb268134
Fix typechecker problems exposed by signedjson 1.1.2 (#12326) 2022-03-29 21:37:50 +00:00
Richard van der Hoff
1f32b90b0f
Room batch: fix up handling of unknown prev_event_ids (#12316) 2022-03-29 14:56:25 +01:00
David Robertson
a2b00a4486
Bump black and click versions (#12320) 2022-03-29 10:41:19 +00:00
Eric Eastwood
14662d3c18
Refactor create_new_client_event to use a new parameter, state_event_ids, which accurately describes the usage with MSC2716 instead of abusing auth_event_ids (#12083)
Spawned from https://github.com/matrix-org/synapse/pull/10975#discussion_r813183430

Part of [MSC2716](https://github.com/matrix-org/matrix-spec-proposals/pull/2716)
2022-03-25 09:21:06 -05:00
Jonathan de Jong
c5776780f0
Remove mutual_rooms update_user_directory check, and add extra documentation (#12038)
Resolves #10339
2022-03-23 12:47:07 +00:00
Jonathan de Jong
516d092ff9
Rename shared_rooms to mutual_rooms (#12036)
Co-authored-by: reivilibre <olivier@librepush.net>
2022-03-23 11:19:20 +00:00
Patrick Cloke
8fe930c215
Move get_bundled_aggregations to relations handler. (#12237)
The get_bundled_aggregations code is fairly high-level and uses
a lot of store methods, we move it into the handler as that seems
like a better fit.
2022-03-18 17:49:32 +00:00
David Robertson
872dbb0181
Correct check_username_for_spam annotations and docs (#12246)
* Formally type the UserProfile in user searches
* export UserProfile in synapse.module_api
* Update docs

Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
2022-03-18 13:51:41 +00:00
Patrick Cloke
fc9bd620ce
Add a relations handler to avoid duplication. (#12227)
Adds a handler layer between the REST and datastore layers for relations.
2022-03-16 10:39:15 -04:00
Patrick Cloke
4587b35929
Clean-up logic for rebasing URLs during URL preview. (#12219)
By using urljoin from the standard library and reducing the number
of places URLs are rebased.
2022-03-16 07:21:36 -04:00
Patrick Cloke
54f674f7a9
Deprecate the groups/communities endpoints and add an experimental configuration flag. (#12200) 2022-03-12 13:23:37 -05:00
Brendan Abolivier
003cc6910a
Update the SSO username picker template to comply with SIWA guidelines (#12210)
Fixes https://github.com/matrix-org/synapse/issues/12205
2022-03-11 13:20:00 +00:00
Patrick Cloke
bc9dff1d95
Remove unnecessary pass statements. (#12206) 2022-03-11 07:06:21 -05:00
Patrick Cloke
ea27528b5d
Support stable identifiers for MSC3440: Threading (#12151)
The unstable identifiers are still supported if the experimental configuration
flag is enabled. The unstable identifiers will be removed in a future release.
2022-03-10 15:36:13 +00:00
Patrick Cloke
88cd6f9378
Allow retrieving the relations of a redacted event. (#12130)
This is allowed per MSC2675, although the original implementation did
not allow for it and would return an empty chunk / not bundle aggregations.

The main thing to improve is that the various caches get cleared properly
when an event is redacted, and that edits must not leak if the original
event is redacted (as that would presumably leak something similar to
the original event content).
2022-03-10 09:03:59 -05:00
Will Hunt
15382b1afa
Add third_party module callbacks to check if a user can delete a room and deactivate a user (#12028)
* Add check_can_deactivate_user

* Add check_can_shutdown_rooms

* Documentation

* callbacks, not functions

* Various suggested tweaks

* Add tests for test_check_can_shutdown_room and test_check_can_deactivate_user

* Update check_can_deactivate_user to not take a Requester

* Fix check_can_shutdown_room docs

* Renegade and use `by_admin` instead of `admin_user_id`

* fix lint

* Update docs/modules/third_party_rules_callbacks.md

Co-authored-by: Brendan Abolivier <babolivier@matrix.org>

* Update docs/modules/third_party_rules_callbacks.md

Co-authored-by: Brendan Abolivier <babolivier@matrix.org>

* Update docs/modules/third_party_rules_callbacks.md

Co-authored-by: Brendan Abolivier <babolivier@matrix.org>

* Update docs/modules/third_party_rules_callbacks.md

Co-authored-by: Brendan Abolivier <babolivier@matrix.org>

Co-authored-by: Brendan Abolivier <babolivier@matrix.org>
2022-03-09 18:23:57 +00:00
Sean Quah
5627182788
Use ParamSpec in type hints for synapse.logging.context (#12150)
Signed-off-by: Sean Quah <seanq@element.io>
2022-03-08 15:58:14 +00:00
Patrick Cloke
cd1ae3d0b4
Remove backwards compatibility with RelationPaginationToken. (#12138) 2022-03-04 07:10:10 -05:00
Patrick Cloke
1d11b452b7
Use the proper serialization format when bundling aggregations. (#12090)
This ensures that the `latest_event` field of the bundled aggregation
for threads uses the same format as the other events in the response.
2022-03-03 10:43:06 -05:00
Patrick Cloke
7754af24ab
Remove the unstable /spaces endpoint. (#12073)
...and various code supporting it.

The /spaces endpoint was from an old version of MSC2946 and included
both a Client-Server and Server-Server API. Note that the unstable
/hierarchy endpoint (from the final version of MSC2946) is not yet
removed.
2022-02-28 18:33:00 +00:00
Patrick Cloke
1866fb39d7
Move experimental support for MSC3440 to /versions. (#12099)
Instead of being part of /capabilities, this matches a change to
MSC3440 to properly use these endpoints.
2022-02-28 18:29:09 +00:00
Richard van der Hoff
5b2b36809f
Remove more references to get_datastore (#12067)
These have snuck in since #12031 was started.

Also a couple of other cleanups while we're in the area.
2022-02-23 12:35:53 +00:00
Richard van der Hoff
e24ff8ebe3
Remove HomeServer.get_datastore() (#12031)
The presence of this method was confusing, and mostly present for backwards
compatibility. Let's get rid of it.

Part of #11733
2022-02-23 11:04:02 +00:00
Brendan Abolivier
250104d357
Implement account status endpoints (MSC3720) (#12001)
See matrix-org/matrix-doc#3720

Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
2022-02-22 15:10:10 +00:00
AndrewRyanChama
066171643b
Fetch images when previewing Twitter URLs. (#11985)
By including "bot" in the User-Agent, which some sites use
to decide whether to include additional Open Graph information.
2022-02-22 07:11:39 -05:00
Travis Ralston
d7cb0dcbaa
Use v3 endpoints for fallback auth (Matrix 1.1) (#12019) 2022-02-22 11:20:45 +00:00
Travis Ralston
99f6d79fe1
Advertise Matrix 1.2 in /_matrix/client/versions (#12022)
Co-authored-by: Patrick Cloke <patrickc@matrix.org>
2022-02-21 08:59:29 -07:00
Travis Ralston
31a298fec7
Advertise Matrix 1.1 in /_matrix/client/versions (#12020) 2022-02-18 07:49:53 -05:00
Travis Ralston
19bd9cff1a
Use stable MSC3069 is_guest flag on /whoami. (#12021)
Keeping backwards compatibility with the unstable flag for now.
2022-02-18 07:48:23 -05:00
Erik Johnston
3f4d25a48b
Remove unstable MSC3283 flags (#12018)
Fixes #11962
2022-02-17 17:22:55 +00:00
Brendan Abolivier
707049c6ff
Allow modules to set a display name on registration (#12009)
Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
2022-02-17 16:54:16 +00:00
David Robertson
4ae956c8bb
Use version string helper from matrix-common (#11979)
* Require latest matrix-common
* Use the common function
2022-02-14 13:12:22 +00:00
Patrick Cloke
4d7e74b2e5
Support the MSC3715 for /relations. (#11941)
This adds an unstable org.matrix.msc3715.dir parameter
which acts like dir on /mesages.
2022-02-11 11:20:27 -05:00
Dirk Klimpel
d36943c4df
Support the stable API endpoint for MSC3283: new settings in /capabilities endpoint (#11933) 2022-02-11 09:32:11 +00:00
Patrick Cloke
df36945ff0
Support pagination tokens from /sync and /messages in the relations API. (#11952) 2022-02-10 10:52:48 -05:00
Denis Kasak
337f38cac3
Implement a content type allow list for URL previews (#11936)
This implements an allow list for content types for which Synapse will attempt URL preview. If a URL resolves to a resource with a content type which isn't in the list, the download will terminate immediately.

This makes sense given that Synapse would never successfully generate a URL preview for such files in the first place, and helps prevent issues with streaming media servers, such as #8302.

Signed-off-by: Denis Kasak dkasak@termina.org.uk
2022-02-10 15:43:01 +00:00
Brendan Abolivier
0640f8ebaa
Add a callback to allow modules to deny 3PID (#11854)
Part of the Tchap Synapse mainlining.

This allows modules to implement extra logic to figure out whether a given 3PID can be added to the local homeserver. In the Tchap use case, this will allow a Synapse module to interface with the custom endpoint /internal_info.
2022-02-08 11:20:32 +01:00
Eric Eastwood
fef2e792be
Fix historical messages backfilling in random order on remote homeservers (MSC2716) (#11114)
Fix https://github.com/matrix-org/synapse/issues/11091
Fix https://github.com/matrix-org/synapse/issues/10764 (side-stepping the issue because we no longer have to deal with `fake_prev_event_id`)

 1. Made the `/backfill` response return messages in `(depth, stream_ordering)` order (previously only sorted by `depth`)
    - Technically, it shouldn't really matter how `/backfill` returns things but I'm just trying to make the `stream_ordering` a little more consistent from the origin to the remote homeservers in order to get the order of messages from `/messages` consistent ([sorted by `(topological_ordering, stream_ordering)`](https://github.com/matrix-org/synapse/blob/develop/docs/development/room-dag-concepts.md#depth-and-stream-ordering)).
    - Even now that we return backfilled messages in order, it still doesn't guarantee the same `stream_ordering` (and more importantly the [`/messages` order](https://github.com/matrix-org/synapse/blob/develop/docs/development/room-dag-concepts.md#depth-and-stream-ordering)) on the other server. For example, if a room has a bunch of history imported and someone visits a permalink to a historical message back in time, their homeserver will skip over the historical messages in between and insert the permalink as the next message in the `stream_order` and totally throw off the sort.
       - This will be even more the case when we add the [MSC3030 jump to date API endpoint](https://github.com/matrix-org/matrix-doc/pull/3030) so the static archives can navigate and jump to a certain date.
       - We're solving this in the future by switching to [online topological ordering](https://github.com/matrix-org/gomatrixserverlib/issues/187) and [chunking](https://github.com/matrix-org/synapse/issues/3785) which by its nature will apply retroactively to fix any inconsistencies introduced by people permalinking
 2. As we're navigating `prev_events` to return in `/backfill`, we order by `depth` first (newest -> oldest) and now also tie-break based on the `stream_ordering` (newest -> oldest). This is technically important because MSC2716 inserts a bunch of historical messages at the same `depth` so it's best to be prescriptive about which ones we should process first. In reality, I think the code already looped over the historical messages as expected because the database is already in order.
 3. Making the historical state chain and historical event chain float on their own by having no `prev_events` instead of a fake `prev_event` which caused backfill to get clogged with an unresolvable event. Fixes https://github.com/matrix-org/synapse/issues/11091 and https://github.com/matrix-org/synapse/issues/10764
 4. We no longer find connected insertion events by finding a potential `prev_event` connection to the current event we're iterating over. We now solely rely on marker events which when processed, add the insertion event as an extremity and the federating homeserver can ask about it when time calls.
    - Related discussion, https://github.com/matrix-org/synapse/pull/11114#discussion_r741514793


Before | After
--- | ---
![](https://user-images.githubusercontent.com/558581/139218681-b465c862-5c49-4702-a59e-466733b0cf45.png) | ![](https://user-images.githubusercontent.com/558581/146453159-a1609e0a-8324-439d-ae44-e4bce43ac6d1.png)



#### Why aren't we sorting topologically when receiving backfill events?

> The main reason we're going to opt to not sort topologically when receiving backfill events is because it's probably best to do whatever is easiest to make it just work. People will probably have opinions once they look at [MSC2716](https://github.com/matrix-org/matrix-doc/pull/2716) which could change whatever implementation anyway.
> 
> As mentioned, ideally we would do this but code necessary to make the fake edges but it gets confusing and gives an impression of “just whyyyy” (feels icky). This problem also dissolves with online topological ordering.
>
> -- https://github.com/matrix-org/synapse/pull/11114#discussion_r741517138

See https://github.com/matrix-org/synapse/pull/11114#discussion_r739610091 for the technical difficulties
2022-02-07 15:54:13 -06:00
Patrick Cloke
314ca4c86d
Pass the proper type when uploading files. (#11927)
The Content-Length header should be treated as an int, not
a string. This shouldn't have any user-facing change.
2022-02-07 10:06:52 -05:00
Jonathan de Jong
02632b3504
Stabilise MSC3231 (Token Based Registration) (#11867) 2022-02-04 12:15:13 +00:00
Patrick Cloke
acda9f07c8
Revert experimental push rules from #7997. (#11884)
Manually reverts the merge from cdbb8e6d6e.
2022-02-02 09:49:31 -05:00
Brendan Abolivier
2d3bd9aa67
Add a module callback to set username at registration (#11790)
This is in the context of mainlining the Tchap fork of Synapse. Currently in Tchap usernames are derived from the user's email address (extracted from the UIA results, more specifically the m.login.email.identity step).
This change also exports the check_username method from the registration handler as part of the module API, so that a module can check if the username it's trying to generate is correct and doesn't conflict with an existing one, and fallback gracefully if not.

Co-authored-by: David Robertson <davidr@element.io>
2022-01-26 14:21:13 +00:00
Patrick Cloke
2897fb6b4f
Improvements to bundling aggregations. (#11815)
This is some odds and ends found during the review of #11791
and while continuing to work in this code:

* Return attrs classes instead of dictionaries from some methods
  to improve type safety.
* Call `get_bundled_aggregations` fewer times.
* Adds a missing assertion in the tests.
* Do not return empty bundled aggregations for an event (preferring
  to not include the bundle at all, as the docstring states).
2022-01-26 08:27:04 -05:00
Brendan Abolivier
95b3f952fa
Add a config flag to inhibit M_USER_IN_USE during registration (#11743)
This is mostly motivated by the tchap use case, where usernames are automatically generated from the user's email address (in a way that allows figuring out the email address from the username). Therefore, it's an issue if we respond to requests on /register and /register/available with M_USER_IN_USE, because it can potentially leak email addresses (which include the user's real name and place of work).

This commit adds a flag to inhibit the M_USER_IN_USE errors that are raised both by /register/available, and when providing a username early into the registration process. This error will still be raised if the user completes the registration process but the username conflicts. This is particularly useful when using modules (https://github.com/matrix-org/synapse/pull/11790 adds a module callback to set the username of users at registration) or SSO, since they can ensure the username is unique.

More context is available in the PR that introduced this behaviour to synapse-dinsic: matrix-org/synapse-dinsic#48 - as well as the issue in the matrix-dinsic repo: matrix-org/matrix-dinsic#476
2022-01-26 13:02:54 +01:00