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This reverts commit bdf82efea505c488953b46eb681b5a63c4e9655d (#17291)
This seems to have stopped persisting auth chains for new events, and so
is causing state res to fall back to the slow methods
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As the API is slightly incompatible.
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Co-authored-by: Andrew Morgan <andrew@amorgan.xyz>
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We calculate the auth chain links outside of the main persist event
transaction to ensure that we do not block other event sending during
the calculation.
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Co-authored-by: Erik Johnston <erikj@element.io>
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Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
Co-authored-by: Andrew Morgan <andrew@amorgan.xyz>
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This adds support for the `via` query parameter from
https://github.com/matrix-org/matrix-spec-proposals/pull/4156.
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Based on [MSC3575](https://github.com/matrix-org/matrix-spec-proposals/pull/3575): Sliding Sync
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Sort is no longer configurable and we always sort rooms by the `stream_ordering` of the last event in the room or the point where the user can see up to in cases of leave/ban/invite/knock.
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Rather than forcing the server operator to apply the SQL manually.
This should be safe, as there should be only one writer for these
sequences.
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Per MSC3967, which is now stable, we should not require UIA when
uploading cross-signing keys for the first time.
Fixes: #17227
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MSC4115 has now completed FCP, so we can enable it by default and switch
to the stable identifier.
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Based on [MSC3575](https://github.com/matrix-org/matrix-spec-proposals/pull/3575): Sliding Sync
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(#17301)
Fix `newly_left` rooms not appearing if we returned early when `membership_snapshot_token.is_before_or_eq(to_token.room_key)`.
Introduced in https://github.com/element-hq/synapse/pull/17187 (part of Sliding Sync)
The tests didn't catch it because they had a small typo in it `room_id1` vs `room_id2`.
Found while working on https://github.com/element-hq/synapse/pull/17293
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Add `event.internal_metadata.instance_name` (the worker instance that persisted the event) to go alongside the existing `event.internal_metadata.stream_ordering`.
`instance_name` is useful to properly compare and query for events with a token since you need to compare both the `stream_ordering` and `instance_name` against the vector clock/`instance_map` in the `RoomStreamToken`.
This is pre-requisite work and may be used in https://github.com/element-hq/synapse/pull/17293
Adding `event.internal_metadata.instance_name` was first mentioned in the initial Sliding Sync PR while pairing with @erikjohnston, see https://github.com/element-hq/synapse/pull/17187/commits/09609cb0dbca3a4cfd9fbf90cc962e765ec469c0#diff-5cd773fb307aa754bd3948871ba118b1ef0303f4d72d42a2d21e38242bf4e096R405-R410
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last event (#17295)
PR where this was introduced: https://github.com/matrix-org/synapse/pull/14817
### What does this affect?
`get_last_event_in_room_before_stream_ordering(...)` is used in Sync v2 in a lot of different state calculations.
`get_last_event_in_room_before_stream_ordering(...)` is also used in `/rooms/{roomId}/members`
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This clarifies in the comments that the MSC is being used in matrix.org
See #17270
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https://github.com/matrix-org/matrix-spec-proposals/pull/4151
This is intended to be enabled by default for immediate use. When FCP is
complete, the unstable endpoint will be dropped and stable endpoint
supported instead - no backwards compatibility is expected for the
unstable endpoint.
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If the stream ID in the unconverted table is ahead of the device lists
ID gen, then it can break all /sync requests that had an ID from ahead
of the table.
The fix is to make sure we add the unconverted table to the list of
tables we check at start up.
Broke in https://github.com/element-hq/synapse/pull/17229
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Broke in https://github.com/element-hq/synapse/pull/17215
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Spawning from https://github.com/element-hq/synapse/pull/17187#discussion_r1619492779 around wanting to put `SlidingSyncBody` (parse the request in the rest layer), `SlidingSyncConfig` (from the rest layer, pass to the handler), `SlidingSyncResponse` (pass the response from the handler back to the rest layer to respond) somewhere that doesn't contaminate the imports and cause circular import issues.
- Moved Pydantic parsing models to `synapse/types/rest`
- Moved handler types to `synapse/types/handlers`
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`ControlVarUsedAfterBlockViolation` `WPS441`) (#17272)
Fix loop var being used outside block.
Before this change, we were always using the last room_id's retention policy for all events being filtered.
I found this bug with the [new lint rule, `ControlVarUsedAfterBlockViolation` `WPS441`](https://github.com/astral-sh/ruff/pull/11769), that I re-implemented in `ruff`. Shout-out to @reivilibre for all the help in the beginning!
### 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))
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are replacing other room keys. (#17266)
Fixes: #17013
Add logging for whether room keys are replaced
This is motivated by the Crypto team who need to diagnose crypto issues.
The existing opentracing logging is not enough because it is not enabled
for all users.
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Based on [MSC3575](https://github.com/matrix-org/matrix-spec-proposals/pull/3575): Sliding Sync
This iteration only focuses on returning the list of room IDs in the sliding window API (without sorting/filtering).
Rooms appear in the Sliding sync response based on:
- `invite`, `join`, `knock`, `ban` membership events
- Kicks (`leave` membership events where `sender` is different from the `user_id`/`state_key`)
- `newly_left` (rooms that were left during the given token range, > `from_token` and <= `to_token`)
- In order for bans/kicks to not show up, you need to `/forget` those rooms. This doesn't modify the event itself though and only adds the `forgotten` flag to `room_memberships` in Synapse. There isn't a way to tell when a room was forgotten at the moment so we can't factor it into the from/to range.
### Example request
`POST http://localhost:8008/_matrix/client/unstable/org.matrix.msc3575/sync`
```json
{
"lists": {
"foo-list": {
"ranges": [ [0, 99] ],
"sort": [ "by_notification_level", "by_recency", "by_name" ],
"required_state": [
["m.room.join_rules", ""],
["m.room.history_visibility", ""],
["m.space.child", "*"]
],
"timeline_limit": 100
}
}
}
```
Response:
```json
{
"next_pos": "s58_224_0_13_10_1_1_16_0_1",
"lists": {
"foo-list": {
"count": 1,
"ops": [
{
"op": "SYNC",
"range": [0, 99],
"room_ids": [
"!MmgikIyFzsuvtnbvVG:my.synapse.linux.server"
]
}
]
}
},
"rooms": {},
"extensions": {}
}
```
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And fallback keys uploads. Only device keys need handling on master
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It's just a waste of time if we won't even query the remote host as its
marked as down.
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Broke in https://github.com/element-hq/synapse/pull/17215
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c.f. #16675
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(#17265)
Use fully-qualified `PersistedEventPosition` (`instance_name` and `stream_ordering`) when returning `RoomsForUser` to facilitate proper comparisons and `RoomStreamToken` generation.
Spawning from https://github.com/element-hq/synapse/pull/17187 where we want to utilize this change
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This can happen on restarts of the service, due to old rooms being
pruned.
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This was broken by the sentry 2.0 upgrade
Broke in v1.108.0
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Otherwise things will get confused.
An alternative would be to make sure that for lagging stream we don't
return anything (and make sure the returned next_batch token doesn't go
backwards). But that is a faff.
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(#17164)
We try and deduplicate in two places: 1) really early on, and 2) just
before we persist the event. The first case was broken due to it
occuring before the profile information was added, and so it thought the
event contents were different.
The second case did catch it and handle it correctly, however doing so
creates a redundant state group leading to bloat.
Fixes #3791
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(#17229)
Replaces all usages of `StreamIdGenerator` with `MultiWriterIdGenerator`, which is safer.
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We started ensuring we only insert valid destinations:
https://github.com/element-hq/synapse/pull/17240
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Fixes up #17239
We need to keep the spam check within the `try/except` block. Also makes
it so that we don't enter the top span twice.
Also also ensures that we get the right thumbnail length.
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There is a problem with `StreamIdGenerator` where it can go backwards
over restarts when a stream ID is requested but then not inserted into
the DB. This is problematic if we want to land #17215, and is generally
a potential cause for all sorts of nastiness.
Instead of trying to fix `StreamIdGenerator`, we may as well move to
`MultiWriterIdGenerator` that does not suffer from this problem (the
latest positions are stored in `stream_positions` table). This involves
adding SQLite support to the class.
This only changes id generators that were already using
`MultiWriterIdGenerator` under postgres, a separate PR will move the
rest of the uses of `StreamIdGenerator` over.
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This is a tree cache already, so may as well move the room ID to the
front and use that
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We relax this as there are use cases where this is safe, though it is
still highly recommended that people avoid using it.
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Currently sending a to-device message to a user ID with a dodgy
destination is accepted, but then ends up spamming the logs when we try
and send to the destination.
An alternative would be to reject the request, but I'm slightly nervous
that could break things.
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Currently this causes one of then to 500.
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When a module rejects a piece of media we end up trying to close the
same logging context twice.
Instead of fixing the existing code we refactor to use an async context
manager, which is easier to write correctly.
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[MSC3916](https://github.com/matrix-org/matrix-spec-proposals/blob/rav/authentication-for-media/proposals/3916-authentication-for-media.md)
adds new media endpoints under `_matrix/client`. This PR adds the
`/preview_url`, `/config`, and `/thumbnail` endpoints. `/download` will
be added in a follow-up PR once the work for the federation `/download`
endpoint is complete (see
https://github.com/element-hq/synapse/pull/17172).
Should be reviewable commit-by-commit.
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This is being introduced as part of Sliding Sync but doesn't have any sliding window component. It's just a way to get E2EE events without having to sit through a big initial sync (`/sync` v2). And we can avoid encryption events being backed up by the main sync response or vice-versa.
Part of some Sliding Sync simplification/experimentation. See [this discussion](https://github.com/element-hq/synapse/pull/17167#discussion_r1610495866) for why it may not be as useful as we thought.
Based on:
- https://github.com/matrix-org/matrix-spec-proposals/pull/3575
- https://github.com/matrix-org/matrix-spec-proposals/pull/3885
- https://github.com/matrix-org/matrix-spec-proposals/pull/3884
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`auto_join_rooms` option. (#17176)
Would have been useful for tracking down #16878.
Signed-off-by: Olivier 'reivilibre <oliverw@matrix.org>
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usage. (#17219)
The log format is the same as the request log format, except:
- fields that are specific to HTTP requests have been removed
- the task's params are included at the end of the log line.
These log lines are emitted:
- when the task function finishes — both completion and failure (and I
suppose it is possible for a task to become schedulable again?)
- every 5 minutes whilst it is running
Closes #17217.
---------
Signed-off-by: Olivier 'reivilibre <oliverw@matrix.org>
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This PR ports the logic from the
[synapse_auto_accept_invite](https://github.com/matrix-org/synapse-auto-accept-invite)
module into synapse.
I went with the naive approach of injecting the "module" next to where
third party modules are currently loaded. If there is a better/preferred
way to handle this, I'm all ears. It wasn't obvious to me if there was a
better location to add this logic that would cleanly apply to all
incoming invite events.
Relies on https://github.com/element-hq/synapse/pull/17166 to fix linter
errors.
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Re-introduces #17191, and includes #17197 and #17214
The basic idea is to stop calling `get_rooms_for_user` everywhere, and
instead use the table `device_lists_changes_in_room`.
Commits reviewable one-by-one.
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This helps prevent clients from "tight-looping" retrying their request.
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We will re-use `get_sync_result_builder(...)` in
https://github.com/element-hq/synapse/pull/17167
Split out from https://github.com/element-hq/synapse/pull/17167
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This change was introduced in
https://github.com/element-hq/synapse/pull/17203
But then https://github.com/element-hq/synapse/pull/17207 was reverted
which brought back usage `joined_rooms` that needed to be updated.
Wasn't caught because `develop` wasn't up to date before merging.
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Split out from https://github.com/element-hq/synapse/pull/17167
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function parameter) (#17201)
Removed `request_key` from the `SyncConfig` (moved outside as its own function parameter) so it doesn't have to flow into `_generate_sync_entry_for_xxx` methods. This way we can separate the concerns of caching from generating the response and reuse the `_generate_sync_entry_for_xxx` functions as we see fit. Plus caching doesn't really have anything to do with the config of sync.
Split from https://github.com/element-hq/synapse/pull/17167
Spawning from https://github.com/element-hq/synapse/pull/17167#discussion_r1601497279
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Reverts element-hq/synapse#17191
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Fixes #16987
Some old accounts seem to have an entry in global account data table for
push rules, which we should ignore
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(`SyncVersion`) (#17200)
Refactor Sync handler to be able to be able to return different sync
responses (`SyncVersion`). Preparation to be able support sync v2 and a
new Sliding Sync `/sync/e2ee` endpoint which returns a subset of sync
v2.
Split upon request:
https://github.com/element-hq/synapse/pull/17167#discussion_r1601497279
Split from https://github.com/element-hq/synapse/pull/17167 where we
will add `SyncVersion.E2EE_SYNC` and a new type of sync response.
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The sliding sync proxy (amongst other things) use literal json blobs as
filters, and repeatedly validating them takes a bunch of CPU.
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For large accounts waking up all the relevant notifier streams can cause
pauses of the reactor.
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It's almost always more efficient to query the rooms that have device
list changes, rather than looking at the list of all users whose devices
have changed and then look for shared rooms.
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This is to allow clients to query the configured federation whitelist.
Disabled by default.
---------
Co-authored-by: Devon Hudson <devonhudson@librem.one>
Co-authored-by: devonh <devon.dmytro@gmail.com>
Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
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See #17177.
I'm an idiot and moved them to the wrong store :facepalm:
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If room publication is disabled then creating public rooms on workers
would not work.
Introduced in #16811.
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Linter errors are showing up in #17147 that are unrelated to that PR.
The errors do not currently show up on develop.
This PR aims to resolve the linter errors separately from #17147.
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Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
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When there have been lots of changes compared with the number of
entities, we can do a fast(er) path.
Locally I ran some benchmarking, and the comparison seems to give the
best determination of which method we use.
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Annoyingly mypy didn't pick up this typo.
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selected (#17120)
This change will apply the `email` & `picture` provided by OIDC to the
new user account when registering a new user via OIDC. If the user is
directed to the account details form, this change makes sure they have
been selected before applying them, otherwise they are omitted. In
particular, this change ensures the values are carried through when
Synapse has consent configured, and the redirect to the consent form/s
are followed.
I have tested everything manually. Including:
- with/without consent configured
- allowing/not allowing the use of email/avatar (via
`sso_auth_account_details.html`)
- with/without automatic account detail population (by un/commenting the
`localpart_template` option in synapse config).
### 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))
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Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
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... when workers are unreachable, etc.
Fixes https://github.com/element-hq/synapse/issues/17117.
The general principle is just to make sure that we propagate any
exceptions to the JsonResource, so that we return an error code to the
sending server. That means that the sending server no longer considers
the message safely sent, so it will retry later.
In the issue, Erik mentions that an alternative solution would be to
persist the to-device messages into a table so that they can be retried.
This might be an improvement for performance, but even if we did that,
we still need this mechanism, since we might be unable to reach the
database. So, if we want to do that, it can be a later follow-up.
---------
Co-authored-by: Erik Johnston <erik@matrix.org>
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Pretty straightforward. 😄
Fixes #17021
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`/_synapse/admin/v1/federation/destinations/<destination>/rooms` (#17077)
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Keep the existing endpoint for backwards compatibility
Signed-off-by: Andrew Ferrazzutti <andrewf@element.io>
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(#17000)
Fixes https://github.com/element-hq/synapse/issues/16999 and
https://github.com/element-hq/element-android/pull/8729 by returning the
search terms as search highlights.
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(#17076)
Fixes #15355 by redacting all membership events before leaving rooms.
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Co-authored-by: Hugh Nimmo-Smith <hughns@element.io>
Co-authored-by: Hugh Nimmo-Smith <hughns@users.noreply.github.com>
Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
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This should fix CI on `develop`. Broke in
https://github.com/element-hq/synapse/commit/0fe9e1f7dafa80f3e02762f7ae75cefee5b3316c,
presumably due to a `mypy` dependency upgrade.
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Weakness in auth chain indexing allows DoS from remote room members
through disk fill and high CPU usage.
A remote Matrix user with malicious intent, sharing a room with Synapse
instances before 1.104.1, can dispatch specially crafted events to
exploit a weakness in how the auth chain cover index is calculated. This
can induce high CPU consumption and accumulate excessive data in the
database of such instances, resulting in a denial of service.
Servers in private federations, or those that do not federate, are not
affected.
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Co-authored-by: Mathieu Velten <mathieu.velten@beta.gouv.fr>
Co-authored-by: Olivier D <odelcroi@gmail.com>
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Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
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Introduced in #17032
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This adds support for MSC4108 via delegation, similar to what has been done for MSC3886
---------
Co-authored-by: Hugh Nimmo-Smith <hughns@element.io>
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MSC3967 was updated recently to make it more robust to network failures:
> there is an existing cross-signing master key and it exactly matches
the cross-signing master key provided in the request body. If there are
any additional keys provided in the request (self signing key, user
signing key) they MUST also match the existing keys stored on the
server. In other words, the request contains no new keys. If there are
new keys, UIA MUST be performed.
https://github.com/matrix-org/matrix-spec-proposals/blob/hughns/device-signing-upload-uia/proposals/3967-device-signing-upload-uia.md#proposal
This covers the case where the 200 OK is lost in transit so the client
retries the upload, only to then get UIA'd.
Complement tests: https://github.com/matrix-org/complement/pull/713 -
passing example
https://github.com/element-hq/synapse/actions/runs/7976948122/job/21778795094?pr=16943#step:7:8820
### 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: reivilibre <oliverw@matrix.org>
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Resurrecting https://github.com/matrix-org/synapse/pull/13918.
This should reduce IOPs incurred by joining to the events table to
lookup stream ordering, which happens in many receipt handling code
paths. Like the previous PR I believe sufficient time has passed between
the original migration in DB schema 72 and now to merge this as-is. It's
highly unlikely that both the migration is still ongoing AND (active)
users still have any receipts prior to that date.
In the unlikely event there is a receipt without a populated
`event_stream_ordering` synapse will behave just as it does now when
receipts exist for events that don't (yet): for push action calculation
the receipts are just ignored.
I've removed the validation on event IDs as this is already covered
here:
https://github.com/element-hq/synapse/blob/59ceabcb9798793cd4312fdbcced4e612aeda84d/synapse/handlers/receipts.py#L189-L192
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`ITransport.abortConnection` isn't a thing, but
`HTTPChannel.forceAbortClient` calls it, so lets just use that
Fixes https://github.com/element-hq/synapse/issues/16728
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See
[MSC4010](https://github.com/matrix-org/matrix-spec-proposals/pull/4010),
but this is pretty much just removing an experimental flag.
Part of #17021
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See
[MSC3981](https://github.com/matrix-org/matrix-spec-proposals/pull/3981),
this pretty much just removes flags though.
Part of #17021
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Refinement of #17064
cc @richvdh
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Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
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This should have been in #17045. Whoops.
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Forget a line, and an empty batch is trivially linear.
c.f. #17064
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PR #16942 removed an invalid optimisation that avoided pulling out state
for non-gappy syncs. This causes a large increase in DB usage. c.f.
#16941 for why that optimisation was wrong.
However, we can still optimise in the simple case where the events in
the timeline are a linear chain without any branching/merging of the
DAG.
cc. @richvdh
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Before we were pulling out *all* read receipts for a user for every
event we pushed. Instead let's only pull out the relevant receipts.
This also pulled out the event rows for each receipt, causing load on
the events table.
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Unfortunately, the optimisation we applied here for non-gappy syncs is
not actually valid.
Fixes https://github.com/element-hq/synapse/issues/16941.
~~Based on https://github.com/element-hq/synapse/pull/16930.~~
Requires https://github.com/matrix-org/sytest/pull/1374.
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Fix a long-standing issue which could cause state to be omitted from the
sync response if the last event was filtered out.
Fixes: https://github.com/element-hq/synapse/issues/16928
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This PR fixes a very, very niche edge-case, but I've got some more work
coming which will otherwise make the problem worse.
The bug happens when the syncing user leaves a room, and has a sync
filter which includes "left" rooms, but sets the timeline limit to 0. In
that case, the state returned in the `state` section is calculated
incorrectly.
The fix is to pass a token corresponding to the point that the user
leaves the room through to `compute_state_delta`.
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This was causing sequential scans when using refresh tokens.
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Since these queries are duplicated in two places.
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Follow on from #17037
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Requests may require a User-Agent header, and the change in #16972
accidentally removed it, resulting in requests getting rejected causing
login to fail.
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(#16925)
Fixes https://github.com/element-hq/synapse/issues/16680, as well as a
related bug, where servers which we had *never* successfully sent an
event to would not be retried.
In order to fix the case of pending to-device messages, we hook into the
existing `wake_destinations_needing_catchup` process, by extending it to
look for destinations that have pending to-device messages. The
federation transmission loop then attempts to send the pending to-device
messages as normal.
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As the title states.
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As done for SAML mapping provider, let's pass the module API to the OIDC
one so the mapper can do more logic in its code.
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State *before* an event is different to state *after* that event, and
people tend to assume the wrong one.
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Fixes https://github.com/element-hq/synapse/issues/16948. If the `join`
and the `leave` are in the same sync response, we need to count them as
a "left" user.
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This is a huge method, which melts my brain.
This is a non-functional change which lays some groundwork for future
work in this area.
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When a lot of locks are waiting for a single lock, notifying all locks
independently with `call_later` on each release is really costly and
incurs some kind of async contention, where the CPU is spinning a lot
for not much.
The included test is taking around 30s before the change, and 0.5s
after.
It was found following failing tests with
https://github.com/element-hq/synapse/pull/16827.
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This PR aims to fix #16895, caused by a regression in #7 and not fixed
by #16903. The PR #16903 only fixes a starvation issue, where the CPU
isn't released. There is a second issue, where the execution is blocked.
This theory is supported by the flame graphs provided in #16895 and the
fact that I see the CPU usage reducing and far below the limit.
Since the changes in #7, the method `check_state_independent_auth_rules`
is called with the additional parameter `batched_auth_events`:
https://github.com/element-hq/synapse/blob/6fa13b4f927c10b5f4e9495be746ec28849f5cb6/synapse/handlers/federation_event.py#L1741-L1743
It makes the execution enter this if clause, introduced with #15195
https://github.com/element-hq/synapse/blob/6fa13b4f927c10b5f4e9495be746ec28849f5cb6/synapse/event_auth.py#L178-L189
There are two issues in the above code snippet.
First, there is the blocking issue. I'm not entirely sure if this is a
deadlock, starvation, or something different. In the beginning, I
thought the copy operation was responsible. It wasn't. Then I
investigated the nested `store.get_events` inside the function `update`.
This was also not causing the blocking issue. Only when I replaced the
set difference operation (`-` ) with a list comprehension, the blocking
was resolved. Creating and comparing sets with a very large amount of
events seems to be problematic.
This is how the flamegraph looks now while persisting outliers. As you
can see, the execution no longer locks up in the above function.
Second, the copying here doesn't serve any purpose, because only a
shallow copy is created. This means the same objects from the original
dict are referenced. This fails the intention of protecting these
objects from mutation. The review of the original PR
https://github.com/matrix-org/synapse/pull/15195 had an extensive
discussion about this matter.
Various approaches to copying the auth_events were attempted:
1) Implementing a deepcopy caused issues due to
builtins.EventInternalMetadata not being pickleable.
2) Creating a dict with new objects akin to a deepcopy.
3) Creating a dict with new objects containing only necessary
attributes.
Concluding, there is no easy way to create an actual copy of the
objects. Opting for a deepcopy can significantly strain memory and CPU
resources, making it an inefficient choice. I don't see why the copy is
necessary in the first place. Therefore I'm proposing to remove it
altogether.
After these changes, I was able to successfully join these rooms,
without the main worker locking up:
- #synapse:matrix.org
- #element-android:matrix.org
- #element-web:matrix.org
- #ecips:matrix.org
- #ipfs-chatter:ipfs.io
- #python:matrix.org
- #matrix:matrix.org
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Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
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Since Synapse 1.76.0, any module which registers a `on_new_event`
callback would brick the ability to join remote rooms.
This is because this callback tried to get the full state of the room,
which would end up in a deadlock.
Related:
https://github.com/matrix-org/synapse-auto-accept-invite/issues/18
The following module would brick the ability to join remote rooms:
```python
from typing import Any, Dict, Literal, Union
import logging
from synapse.module_api import ModuleApi, EventBase
logger = logging.getLogger(__name__)
class MyModule:
def __init__(self, config: None, api: ModuleApi):
self._api = api
self._config = config
self._api.register_third_party_rules_callbacks(
on_new_event=self.on_new_event,
)
async def on_new_event(self, event: EventBase, _state_map: Any) -> None:
logger.info(f"Received new event: {event}")
@staticmethod
def parse_config(_config: Dict[str, Any]) -> None:
return None
```
This is technically a breaking change, as we are now passing partial
state on the `on_new_event` callback.
However, this callback was broken for federated rooms since 1.76.0, and
local rooms have full state anyway, so it's unlikely that it would
change anything.
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(#16756)" (#16979)
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Co-authored-by: Andrew Morgan <andrew@amorgan.xyz>
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Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
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This adds a counter `synapse_emails_sent_total` for emails sent. They
are broken down by `type`, which are `password_reset`, `registration`,
`add_threepid`, `notification` (matching the methods of `Mailer`).
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We do this by adding support to the LRU cache for "extra indices" based
on the cached value. This allows us to efficiently map from room ID to
the cached events and only invalidate those.
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List of users not to send out device list updates for when they register
new devices. This is useful to handle bot accounts.
This is undocumented as its mostly a hack to test on matrix.org.
Note: This will still send out device list updates if the device is
later updated, e.g. end to end keys are added.
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This basically reverts a change that was in
https://github.com/element-hq/synapse/pull/16833, where we reduced the
batching.
The smaller batching can cause performance issues on busy servers and
databases.
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Otherwise if we've stacked a bunch of requests for the keys of a server,
we'll end up sending lots of concurrent requests for its keys,
needlessly.
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Now that the MSC3981 has passed FCP
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Introduced in #16833
Fixes #16844
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This helps with bot accounts with lots of non-e2e devices.
The change is basically to change the order of the join for the case of
using `INNER JOIN`
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During the migration the automated script to update the copyright
headers accidentally got rid of some of the existing copyright lines.
Reinstate them.
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are violated when creating a new room. (#16811)
Prior to this PR, if a request to create a public (public as in
published to the rooms directory) room violated the room list
publication rules set in the
[config](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#room_list_publication_rules),
the request to create the room was denied and the room was not created.
This PR changes the behavior such that when a request to create a room
published to the directory violates room list publication rules, the
room is still created but the room is not published to the directory.
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Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
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The current query supports passing in a list of users, which generates a
query using `user_id = ANY(..)`. This is generates a less efficient
query plan that is notably slower than a simple `user_id = ?` condition.
Note: The new function is mostly a copy and paste and then a
simplification of the existing function.
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The crux of the change is to try and make the queries simpler and pull
out fewer rows. Before, there were quite a few joins against subqueries,
which caused postgres to pull out more rows than necessary.
Instead, let's simplify the query and do some of the filtering out in
Python instead, letting Postgres do better optimizations now that it
doesn't have to deal with joins against subqueries.
Review note: this is a complete rewrite of the function, so not sure how
useful the diff is.
---------
Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
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In previous versions of authlib using `client_secret_basic` without a
`client_secret` would result in an invalid auth header. Since authlib
1.3 it throws an exception.
The configuration may be accepted in by very lax servers, so we don't
want to deny it outright. Instead, let's default the
`client_auth_method` to `none`, which does the right thing. If the
config specifies `client_auth_method` and no `client_secret` then that
is going to be bogus and we should reject it
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This hopefully reduces the amount of state we need to keep in memory
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Sometimes we fail to fetch events during backfill due to missing state,
and we often end up querying the same bad events periodically (as people
backpaginate). In such cases its likely we will continue to fail to get
the state, and therefore we should try *before* loading the state that
we have from the DB (as otherwise it's wasted DB and memory).
---------
Co-authored-by: reivilibre <oliverw@matrix.org>
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There are two changes here:
1. Only pull out the required state when handling the request.
2. Change the get filtered state return type to check that we're only
querying state that was requested
---------
Co-authored-by: reivilibre <oliverw@matrix.org>
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Otherwise for users with large numbers of devices this can cause a lot
of woe.
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Instead of persisting outliers in a bunch of batches, let's just do them
all at once.
This is fine because all `_auth_and_persist_outliers_inner` is doing is
checking the auth rules for each event, which requires the events to be
topologically sorted by the auth graph.
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when those rooms block that homeserver by their Access Control Lists. (#16759)
The idea here being that the directory server shouldn't advertise rooms
to a requesting server is the requesting server would not be allowed to
join or participate in the room.
<!--
Fixes: # <!-- -->
<!--
Supersedes: # <!-- -->
<!--
Follows: # <!-- -->
<!--
Part of: # <!-- -->
Base: `develop` <!-- git-stack-base-branch:develop -->
<!--
This pull request is commit-by-commit review friendly. <!-- -->
<!--
This pull request is intended for commit-by-commit review. <!-- -->
Original commit schedule, with full messages:
<ol>
<li>
Pass `from_federation_origin` down into room list retrieval code
</li>
<li>
Don't cache /publicRooms response for inbound federated requests
</li>
<li>
fixup! Don't cache /publicRooms response for inbound federated requests
</li>
<li>
Cap the number of /publicRooms entries to 100
</li>
<li>
Simplify code now that you can't request unlimited rooms
</li>
<li>
Filter out rooms from federated requests that don't have the correct ACL
</li>
<li>
Request a handful more when filtering ACLs so that we can try to avoid
shortchanging the requester
</li>
</ol>
---------
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
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There are a couple of things we need to be careful of here:
1. The current python code does no validation when loading from the DB,
so we need to be careful to ignore such errors (at least on jki.re there
are some old events with internal metadata fields of the wrong type).
2. We want to be memory efficient, as we often have many hundreds of
thousands of events in the cache at a time.
---------
Co-authored-by: Quentin Gliech <quenting@element.io>
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Introduced in #16762
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We remove these fields as they're just duplicating data the event
already stores, and (for reasons :shushing_face:) I'd like to simplify
the class to only store simple types.
I'm not entirely convinced that we shouldn't instead add helper methods
to the event class to generate stream tokens, but I don't really think
that's where they belong either
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This is an extra response parameter just added to MSC3981. In the
current impl, the recursion depth is always 3, so this just returns a
static 3 if the recurse parameter is supplied.
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Closes #16370
Signed-off-by: Adam Jedrzejewski <adamjedrzejewski@icloud.com>
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Previously, the response status of `HTMLResource` was hardcoded as
`200`. However, for proper redirection after the user verifies their
email, we require the status to be `302`. This PR addresses that issue
by using `code` as response status.
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Closes:
- https://github.com/matrix-org/synapse/issues/10397
- #10397
An administrator should know whether he wants to set a password or not.
There are many uses cases where a blank password is required.
- Use of only some users with SSO.
- Use of bots with password, users with SSO
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At least for vscode this allows click through / type checking / syntax
highlighting.
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(#16738)
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Co-authored-by: Fabian Klemp <fabian.klemp@frequentis.com>
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Co-authored-by: Quentin Gliech <quenting@element.io>
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This reverts two commits:
0bb8e418a41c6f583ca9d705b400e37e2308a534
"Fix postgres schema after dropping old tables (#16730)"
and
51e4e35653f98c3f61222fbdbdb1dcb8864f7fca
"Add a Postgres `REPLICA IDENTITY` to tables that do not have an implicit one. This should allow use of Postgres logical replication. (take 2, now with no added deadlocks!) (#16658)"
and also amends the changelog.
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/_synapse/admin/v1/federation/destinations (#16729)
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one. This should allow use of Postgres logical replication. (take 2, now with no added deadlocks!) (#16658)
* Add `ALTER TABLE ... REPLICA IDENTITY ...` for individual tables
We can't combine them into one file as it makes it likely to hit a deadlock
if Synapse is running, as it only takes one other transaction to access two
tables in a different order to the schema delta.
* Add notes
* Newsfile
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
* Re-introduce REPLICA IDENTITY test
---------
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
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Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
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MSC: https://github.com/matrix-org/matrix-spec-proposals/pull/4069
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Signed-off-by: Andrii Yasynyshyn yasinishyn.a.n@gmail.com
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Implement MSC3860 to follow redirects for federated media downloads.
Note that the Client-Server API doesn't support this (yet) since the media
repository in Synapse doesn't have a way of supporting redirects.
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* Reduce DB load when forget on leave setting is disabled
* Newsfile
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Silly query planner
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These are not useful and make it difficult to search for
table definitions, etc.
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(#16672)
* Describe `insert_client_ip`
* Pull out client_ips and MAU tracking to BaseAuth
* Define HAS_AUTHLIB once in tests
sick of copypasting
* Track ips and token usage when delegating auth
* Test that we track MAU and user_ips
* Don't track `__oidc_admin`
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Signed-off-by: Charles Wright <cvwright@futo.org>
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* Admin API for server notice: disable rate limit for all calls
* Add changelog
* Update changelog.d/16670.bugfix
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Now that we're reducing concurrency (#16656), this is more important.
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What it says on the tin
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Follow on from #16640
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background update (#16594)
A regression from removing the cursor_to_dict call, adds back
the wrapping into a tuple.
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replica identities, then add more replica identities. (#16647)" (#16652)
This reverts commit 830988ae72d63bbb67d2020a3f221664f3f456ee.
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implicit one. This should allow use of Postgres logical replication. (#16456)" (#16651)
This reverts commit 69afe3f7a0d89f3422ddbd3aa16bc9bbc01056eb.
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Keeping track of a lower bound of stream ID where we've deleted everything below makes the queries much faster. Otherwise, every time we scan for rows to delete we'd re-scan across all the rows that have previously deleted (until the next table VACUUM).
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Recalculating the roots tuple every iteration could be very expensive, so instead let's do a topological sort.
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If a worker reconnects to Redis we send out the current positions of all our streams. However, if we're also trying to send out a backlog of RDATA at the same time then we can end up sending a `POSITION` with the current token *before* we've sent all the RDATA before the current token.
This doesn't cause actual bugs as the receiving servers see the POSITION, fetch the relevant rows from the DB, and then ignore the old RDATA as they come in. However, this is inefficient so it'd be better if we didn't send out-of-order positions
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We may receive `POSITION` commands where we already know that worker has
advanced past that position, so there is no point in handling it.
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identities, then add more replica identities. (#16647)
* Fix the CI query that did not detect all cases of missing primary keys
* Add more missing REPLICA IDENTITY entries
* Newsfile
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
---------
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
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cross-signing key without UIA (#16634)
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Support asynchronous uploads as defined in MSC2246.
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The statements are already executed within a transaction thus a table
level lock is unnecessary.
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one. This should allow use of Postgres logical replication. (#16456)
* Add Postgres replica identities to tables that don't have an implicit one
Fixes #16224
* Newsfile
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
* Move the delta to version 83 as we missed the boat for 82
* Add a test that all tables have a REPLICA IDENTITY
* Extend the test to include when indices are deleted
* isort
* black
* Fully qualify `oid` as it is a 'hidden attribute' in Postgres 11
* Update tests/storage/test_database.py
Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
* Add missed tables
---------
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
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To avoid asserting the type of the database connection.
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identifiers for Application Service users when deactivated and would not emit a compliant response. (#16617)
* Don't skip unbinding 3PIDs and returning success status when deactivating AS user
Fixes #16608
* Newsfile
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
---------
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
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This takes advantage of the new bulk method in more places to
invalidate caches for many keys at once (and then to stream that
over replication).
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Co-authored-by: Patrick Cloke <patrickc@matrix.org>
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(#16609)
simple_update_many_txn had a bug in it which would cause each
update to be applied twice.
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If simple_{insert,upsert,update}_many_txn is called without any data
to modify then return instead of executing the query.
This matches the behavior of simple_{select,delete}_many_txn.
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Expand tests for the simple_* database methods, additionally
test against both PostgreSQL and SQLite variants.
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Fetch information needed for push rule evaluation in parallel.
Ideally this would use query pipelining, but this is not
available in psycopg2.
Due to the database thread pool this may result in little
to no parallelization.
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Previously only Twisted's EPollReactor was compatible with the
reactor timing metric, notably not working when asyncio was used.
After this change, the following configurations support the reactor
timing metric:
* poll, epoll, or select reactors
* asyncio reactor with a poll, epoll, select, /dev/poll, or kqueue event loop.
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The event persistence code used to handle multiple rooms
at a time, but was simplified to only ever be called with a
single room at a time (different rooms are now handled in
parallel). The code is still generic to multiple rooms causing
a lot of work that is unnecessary (e.g. unnecessary loops, and
partitioning data by room).
This strips out the ability to handle multiple rooms at once, greatly
simplifying the code.
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Just to standardize on the normal helpers, it might also have
a slight perf improvement on PostgreSQL which will now use
`ANY (?)` instead of `IN (?, ?, ...)`.
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getfullargspec is relatively expensive and the results will
not change between calls, so precalculate it outside the
wrapper.
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7a3a55ac98847d7adb0e200378abe07ef8d0c645.
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Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
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We can bail early if the from token is greater than or equal to the
current token.
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This is mostly useful for federated rooms where some users
would get stuck in the invite or knock state when the room
was purged from their homeserver.
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Follow on from / actually correctly does #16557
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c.f. #16481
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(#16549)
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