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babolivier/new_push_rules
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Thanks to some slightly overzealous cleanup in the
`delete_old_current_state_events`, it's possible to end up with no
`event_forward_extremities` in a room where we have outstanding local
invites. The user would then get a "no create event in auth events" when trying
to reject the invite.
We can hack around it by using the dangling invite as the prev event.
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Add option ```purge``` to ```POST /_synapse/admin/v1/rooms/<room_id>/delete```
Fixes: #3761
Signed-off-by: Dirk Klimpel dirk@klimpel.org
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Idea from matrix-org/synapse-dinsic#49
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Fixes #7901.
Signed-off-by: Niklas Tittjung <nik_t.01@web.de>
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Synapse 1.18.0rc2 (2020-07-28)
==============================
Bugfixes
--------
- Fix an `AssertionError` exception introduced in v1.18.0rc1. ([\#7876](https://github.com/matrix-org/synapse/issues/7876))
- Fix experimental support for moving typing off master when worker is restarted, which is broken in v1.18.0rc1. ([\#7967](https://github.com/matrix-org/synapse/issues/7967))
Internal Changes
----------------
- Further optimise queueing of inbound replication commands. ([\#7876](https://github.com/matrix-org/synapse/issues/7876))
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IIRC this doesn't break tests because its only hit on reconnection, or something.
Basically, when a process needs to fetch missing updates for the `typing` stream it needs to query the writer instance via HTTP (as we don't write typing notifications to the DB), the problem was that the endpoint (`streams`) was only registered on master and specifically not on the typing writer worker.
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Most of the stuff we do for replication commands can be done synchronously. There's no point spinning up background processes if we're not going to need them.
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Handling of incoming typing stream updates from replication was not
hooked up on master, effecting set ups where typing was handled on a
different worker.
This is really only a problem if the master process is also handling
sync requests, which is unlikely for those that are at the stage of
moving typing off.
The other observable effect is that if a worker restarts or a
replication connect drops then the typing worker will issue a
`POSITION typing`, triggering master process to try and stream *all*
typing updates from position 0.
Fixes #7907
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Fixes previews of Twitter URLs by using their oEmbed endpoint to grab content.
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(#7944)
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Clients disconnecting before we finish processing the request happens from time
to time. We don't need to yell about it
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If we send out an event which refers to `prev_events` which other servers in
the federation are missing, then (after a round or two of backfill attempts),
they will end up asking us for `/state_ids` at a particular point in the DAG.
As per https://github.com/matrix-org/synapse/issues/7893, this is quite
expensive, and we tend to see lots of very similar requests around the same
time.
We can therefore handle this much more efficiently by using a cache, which (a)
ensures that if we see the same request from multiple servers (or even the same
server, multiple times), then they share the result, and (b) any other servers
that miss the initial excitement can also benefit from the work.
[It's interesting to note that `/state` has a cache for exactly this
reason. `/state` is now essentially unused and replaced with `/state_ids`, but
evidently when we replaced it we forgot to add a cache to the new endpoint.]
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For inbound federation requests, if a given remote server makes too many
requests at once, we start stacking them up rather than processing them
immediatedly.
However, that means that there is a fair chance that the requesting server will
disconnect before we start processing the request. In that case, if it was a
read-only request (ie, a GET request), there is absolutely no point in
building a response (and some requests are quite expensive to handle).
Even in the case of a POST request, one of two things will happen:
* Most likely, the requesting server will retry the request and we'll get the
information anyway.
* Even if it doesn't, the requesting server has to assume that we didn't get
the memo, and act accordingly.
In short, we're better off aborting the request at this point rather than
ploughing on with what might be a quite expensive request.
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... it's a load of work which may be entirely redundant.
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I'm going to be doing more stuff synchronously, and I don't want to lose the
CPU metrics down the sofa.
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This had some dead code and some just plain wrong docstrings.
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Use Element CSS and logo in notification emails when app name is Element.
Signed-off-by: Jason Robinson <jasonr@matrix.org>
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The [postgres setup docs](https://github.com/matrix-org/synapse/blob/develop/docs/postgres.md#set-up-database) recommend setting up your database with user `synapse_user`.
However, uncommenting the postgres defaults in the sample config leave you with user `synapse`.
This PR switches the sample config to recommend `synapse_user`. Took a me a second to figure this out, so assume this will beneficial to others.
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Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
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It serves no purpose and updating everytime we write to the device inbox
stream means all such transactions will conflict, causing lots of
transaction failures and retries.
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Fixes #7774
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It's somewhat expected for us to have unknown room versions in the
database due to room version experiments.
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objects. (#7849)
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When we get behind on replication, we tend to stack up background processes
behind a linearizer. Bg processes are heavy (particularly with respect to
prometheus metrics) and linearizers aren't terribly efficient once the queue
gets long either.
A better approach is to maintain a queue of requests to be processed, and
nominate a single process to work its way through the queue.
Fixes: #7444
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We shouldn't allow others to make_join through us if we've left the room;
reject such attempts with a 404.
Fixes #7835. Fixes #6958.
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This reuses the same scheme as federation sender sharding
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Fix guest user registration with lots of client readers
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partly just to show it works, but alwo to remove a bit of code duplication.
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I found these made pycharm have more of a clue as to what was going on in other places.
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It was correct at the time of our friend Jorik writing it (checking
git blame), but the world has moved now and it is no longer a
generator.
Signed-off-by: Olivier Wilkinson (reivilibre) <olivier@librepush.net>
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json. (#7836)
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When considering rooms to clean up in `delete_old_current_state_events`, skip
rooms which we are creating, which otherwise look a bit like rooms we have
left.
Fixes #7834.
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* Fix client reader sharding tests
* Newsfile
* Fix typing
* Update changelog.d/7853.misc
Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
* Move mocking of http_client to tests
Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
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As far as I can tell from the sentry logs, the only time this has actually done
anything in the last two years is when we had two master workers running at
once, and even then, it made a bit of a mess of it (see
https://github.com/matrix-org/synapse/issues/7845#issuecomment-658238739).
Generally I feel like this code is doing more harm than good.
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The Delete Room admin API allows server admins to remove rooms from server
and block these rooms.
`DELETE /_synapse/admin/v1/rooms/<room_id>`
It is a combination and improvement of "[Shutdown room](https://github.com/matrix-org/synapse/blob/develop/docs/admin_api/shutdown_room.md)" and "[Purge room](https://github.com/matrix-org/synapse/blob/develop/docs/admin_api/purge_room.md)" API.
Fixes: #6425
It also fixes a bug in [synapse/storage/data_stores/main/room.py](synapse/storage/data_stores/main/room.py) in ` get_room_with_stats`.
It should return `None` if the room is unknown. But it returns an `IndexError`.
https://github.com/matrix-org/synapse/blob/901b1fa561e3cc661d78aa96d59802cf2078cb0d/synapse/storage/data_stores/main/room.py#L99-L105
Related to:
- #5575
- https://github.com/Awesome-Technologies/synapse-admin/issues/17
Signed-off-by: Dirk Klimpel dirk@klimpel.org
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We didn't do this for e.g. registration emails.
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Fixes https://github.com/matrix-org/synapse/issues/7821, introduced in https://github.com/matrix-org/synapse/pull/7639
Turns out PyYAML translates `off` into a `False` boolean if it's
unquoted (see https://stackoverflow.com/questions/36463531/pyyaml-automatically-converting-certain-keys-to-boolean-values),
which seems to be a liberal interpretation of this bit of the YAML spec: https://yaml.org/spec/1.1/current.html#id864510
An alternative fix would be to implement the solution mentioned in the
SO post linked above, but I'm aware it might break existing setups
(which might use these values in the configuration file) so it's
probably better just to add an extra check for this one. We should be
aware that this is a thing for the next times we do that though.
I didn't find any other occurrence of this bug elsewhere in the
codebase.
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The replication client requires that arguments are given as keyword
arguments, which was not done in this case. We also pull out the logic
so that we can catch and handle any exceptions raised, rather than
leaving them unhandled.
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When fetching the state of a room over federation we receive the event
IDs of the state and auth chain. We then fetch those events that we
don't already have.
However, we used a function that recursively fetched any missing auth
events for the fetched events, which can lead to a lot of recursion if
the server is missing most of the auth chain. This work is entirely
pointless because would have queued up the missing events in the auth
chain to be fetched already.
Let's just diable the recursion, since it only gets called from one
place anyway.
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use `Failure()` to fish out the real exception.
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It seems auth_events can be either a list or a tuple, depending on Things.
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Fixes #2181.
The basic premise is that, when we
fail to reject an invite via the remote server, we can generate our own
out-of-band leave event and persist it as an outlier, so that we have something
to send to the client.
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... instead of duplicating `config.signing_key[0]` everywhere
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This table is no longer used, so we may as well stop populating it. Removing it
would prevent people rolling back to older releases of Synapse, so that can
happen in a future release.
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* Fix spec compliance; tweaks without values are valid
(default to True, which is only concretely specified for
`highlight`, but it seems only reasonable to generalise)
* Changelog for 7766.
* Add documentation to `tweaks_for_actions`
May as well tidy up when I'm here.
* Add a test for `tweaks_for_actions`
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Fixes https://github.com/matrix-org/synapse/issues/7641
The package was pinned to <0.8.0 without an obvious reasoning with
7ad1d7635
in https://github.com/matrix-org/synapse/pull/5636
while the version selection looks to just try to exclude an arbitrary
next minor version number that might introduce API breaking changes.
Selecting the next minor number might be a good conservative selection.
Downstream distributions already reported success patching out the version
requirements.
This also fixes the integration of upgraded packages into openSUSE packages,
e.g. for openSUSE Tumbleweed which already ships prometheus_client >= 0.8 .
Signed-off-by: Oliver Kurz <okurz@suse.de>
Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
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The CI appears to use the latest version of isort, which is a problem when isort gets a major version bump. Rather than try to pin the version, I've done the necessary to make isort5 happy with synapse.
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fixes #7016
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Synapse 1.16.0rc2 (2020-07-02)
==============================
Synapse 1.16.0rc2 includes the security fixes released with Synapse 1.15.2.
Please see [below](https://github.com/matrix-org/synapse/blob/master/CHANGES.md#synapse-1152-2020-07-02) for more details.
Improved Documentation
----------------------
- Update postgres image in example `docker-compose.yaml` to tag `12-alpine`. ([\#7696](https://github.com/matrix-org/synapse/issues/7696))
Internal Changes
----------------
- Add some metrics for inbound and outbound federation latencies: `synapse_federation_server_pdu_process_time` and `synapse_event_processing_lag_by_event`. ([\#7771](https://github.com/matrix-org/synapse/issues/7771))
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Introduced in #7755, not yet released.
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* Remove obsolete comment about ancient temporary code
Signed-off-by: Olivier Wilkinson (reivilibre) <olivier@librepush.net>
* Implement hack to set push priority
based on whether the tweaks indicate the event might cause
effects.
* Changelog for 7765
Signed-off-by: Olivier Wilkinson (reivilibre) <olivier@librepush.net>
* Antilint
* Add tests for push priority
Signed-off-by: Olivier Wilkinson (reivilibre) <olivier@librepush.net>
* Update synapse/push/httppusher.py
Co-authored-by: Brendan Abolivier <babolivier@matrix.org>
* Antilint
* Remove needless invites from tests.
Co-authored-by: Brendan Abolivier <babolivier@matrix.org>
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my editor was complaining about unset variables, so let's add some early
returns to fix that and reduce indentation/cognitive load.
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This makes it much easier to find where streams are referenced.
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fix a few things to make this pass mypy.
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State res v2 across large data sets can be very CPU intensive, and if
all the relevant events are in the cache the algorithm will run from
start to finish within a single reactor tick. This can result in
blocking the reactor tick for several seconds, which can have major
repercussions on other requests.
To fix this we simply add the occaisonal `sleep(0)` during iterations to
yield execution until the next reactor tick. The aim is to only do this
for large data sets so that we don't impact otherwise quick resolutions.=
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HTTP requires the response to contain a Content-Length header unless chunked encoding is being used.
Prometheus metrics endpoint did not set this, causing software such as prometheus-proxy to not be able to scrape synapse for metrics.
Signed-off-by: Christian Svensson <blue@cmd.nu>
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Fix unread counts in sync
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* Always return an unread_count in get_unread_event_push_actions_by_room_for_user
* Don't always expect unread_count to be there so we don't take out sync entirely if something goes wrong
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Older versions of `parameterized` package have no `parameterized_class` decorator. This decorator is used in tests.
Signed-off-by: Oleg Girko <ol@infoserver.lv>
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This requires a new config option to specify which media repo should be
responsible for running background jobs to e.g. clear out expired URL
preview caches.
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Implementation of https://github.com/matrix-org/matrix-doc/pull/2625
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This is a potential solution to https://github.com/vector-im/riot-web/issues/3374
and https://github.com/vector-im/riot-web/issues/5953
as raised by Mozilla at https://github.com/vector-im/riot-web/issues/10868.
This lets you define a push rule action which increases the badge count (unread notification)
count on a given room, but doesn't actually send a push for that notification via email or HTTP.
We might want to define this as the default behaviour for group chats in future
to solve https://github.com/vector-im/riot-web/issues/3268 at last.
This is implemented as a string action rather than a tweak because:
* Other pushers don't care about the tweak, given they won't ever get pushed
* The DB can store the tweak more efficiently using the existing `notify` table.
* It avoids breaking the default_notif/highlight_action optimisations.
Clients which generate their own notifs (e.g. desktop notifs from Riot/Web
would need to be aware of the new push action) to uphold it.
An alternative way to do this would be to maintain a `msg_count` alongside
`highlight_count` and `notification_count` in `unread_notifications` in sync responses.
However, doing this by counting the rows in `events` since the `stream_position`
of the user's last read receipt turns out to be painfully slow (~200ms), perhaps
due to the size of the events table. So instead, we use the highly optimised
existing event_push_actions (and event_push_actions_staging) table to maintain
the counts - using the code paths which already exist for tracking unread
notification counts efficiently. These queries are typically ~3ms or so.
The biggest issues I see here are:
* We're slightly repurposing the `notif` field on `event_push_actions` to
track whether a given action actually sent a `push` or not. This doesn't
seem unreasonable, but it's slightly naughty given that previously the
field explicitly tracked whether `notify` was true for the action (and
as a result, it was uselessly always set to 1 in the DB).
* We're going to put more load on the `event_push_actions` table for all the
random group chats which people had previously muted. In practice i don't
think there are many of these though.
* There isn't an MSC for this yet (although this comment could become one).
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The aim here is to make it easier to reason about when streams are limited and when they're not, by moving the logic into the database functions themselves. This should mean we can kill of `db_query_to_update_function` function.
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This ended up being a bit more invasive than I'd hoped for (not helped by
generic_worker duplicating some of the code from homeserver), but hopefully
it's an improvement.
The idea is that, rather than storing unstructured `dict`s in the config for
the listener configurations, we instead parse it into a structured
`ListenerConfig` object.
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Fixes https://github.com/matrix-org/synapse/issues/7683
Broke in: #7649
We had a `yield` acting on a coroutine. To be fair this one is a bit difficult to notice as there's a function in the middle that just passes the coroutine along.
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The spec [states](https://matrix.org/docs/spec/client_server/r0.6.1#phone-number) that `m.id.phone` requires the field `country` and `phone`.
In Synapse, we've been enforcing `country` and `number`.
I am not currently sure whether this affects any client implementations.
This issue was introduced in #1994.
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Just a simple typo fix.
Signed-off-by: wondratsch 28294257+wondratsch@users.noreply.github.com
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This should fix #7610.
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Fixes https://github.com/matrix-org/synapse/issues/2431
Adds config option `encryption_enabled_by_default_for_room_type`, which determines whether encryption should be enabled with the default encryption algorithm in private or public rooms upon creation. Whether the room is private or public is decided based upon the room creation preset that is used.
Part of this PR is also pulling out all of the individual instances of `m.megolm.v1.aes-sha2` into a constant variable to eliminate typos ala https://github.com/matrix-org/synapse/pull/7637
Based on #7637
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This reverts commit 8587b0426fa4e65992aaa47158e991fa1797d3fb.
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* Ensure account data stream IDs are unique.
The account data stream is shared between three tables, and the maximum
allocated ID was tracked in a dedicated table. Updating the max ID
happened outside the transaction that allocated the ID, leading to a
race where if the server was restarted then the same ID could be
allocated but the max ID failed to be updated, leading it to be reused.
The ID generators have support for tracking across multiple tables, so
we may as well use that instead of a dedicated table.
* Fix bug in account data replication stream.
If the same stream ID was used in both global and room account data then
the getting updates for the replication stream would fail due to
`heapq.merge(..)` trying to compare a `str` with a `None`. (This is
because you'd have two rows like `(534, '!room')` and `(534, None)` from
the room and global account data tables).
Fix is just to order by stream ID, since we don't rely on the ordering
beyond that. The bug where stream IDs can be reused should be fixed now,
so this case shouldn't happen going forward.
Fixes #7617
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Fixes https://github.com/matrix-org/synapse/issues/3177
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These things don't return Deferreds.
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active user limit has been reached (#7263)
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- Admin is able to
- change displaynames
- delete devices
- list devices
- get device informations
Fixes #7330
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Closes #4382
Signed-off-by: Maxim Plotnikov <wgh@torlan.ru>
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While working on https://github.com/matrix-org/synapse/issues/5665 I found myself digging into the `Ratelimiter` class and seeing that it was both:
* Rather undocumented, and
* causing a *lot* of config checks
This PR attempts to refactor and comment the `Ratelimiter` class, as well as encourage config file accesses to only be done at instantiation.
Best to be reviewed commit-by-commit.
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@uhoreg has confirmed these were both typos. They are only in comments and tests though, rather than anything critical.
Introduced in:
* https://github.com/matrix-org/synapse/pull/7157
* https://github.com/matrix-org/synapse/pull/5726
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docs, default configs, comments. Nothing very significant.
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Based on #7619
async's `get_user_id_by_threepid` and its call stack.
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flow (#7625)
This is so the user is warned about the username not being valid as soon as possible, rather than only once they've finished UIA.
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We already caught some exceptions, but not all.
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* Expose `return_html_error`, and allow it to take a Jinja2 template instead of a raw string
* Clean up exception handling in SAML2ResponseResource
* use the existing code in `return_html_error` instead of re-implementing it
(giving it a jinja2 template rather than inventing a new form of template)
* do the exception-catching in the REST layer rather than in the handler
layer, to make sure we catch all exceptions.
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It looks like `user_device_resync` was ignoring cross-signing keys from the results received from the remote server. This patch fixes this, by processing these keys using the same process `_handle_signing_key_updates` does (and effectively factor that part out of that function).
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The query keeps showing up in my slow query log.
This changes the plan under the top-level Sort node from
```
WindowAgg (cost=280335.88..292963.15 rows=561212 width=80) (actual time=138.651..160.562 rows=27112 loops=1)
-> Sort (cost=280335.88..281738.91 rows=561212 width=84) (actual time=138.597..140.622 rows=27112 loops=1)
Sort Key: state_groups_state.type, state_groups_state.state_key, state_groups_state.state_group
Sort Method: quicksort Memory: 4581kB
-> Nested Loop (cost=2.83..226745.22 rows=561212 width=84) (actual time=21.548..47.657 rows=27112 loops=1)
-> HashAggregate (cost=2.27..3.28 rows=101 width=8) (actual time=21.526..21.535 rows=20 loops=1)
Group Key: state.state_group
-> CTE Scan on state (cost=0.00..2.02 rows=101 width=8) (actual time=21.280..21.493 rows=20 loops=1)
-> Index Scan using state_groups_state_type_idx on state_groups_state (cost=0.56..2189.40 rows=5557 width=84) (actual time=0.005..0.991 rows=1356 loops=20)
Index Cond: (state_group = state.state_group)
```
to
```
Nested Loop (cost=2.83..226745.22 rows=561212 width=84) (actual time=24.194..52.834 rows=27112 loops=1)
-> HashAggregate (cost=2.27..3.28 rows=101 width=8) (actual time=24.130..24.138 rows=20 loops=1)
Group Key: state.state_group
-> CTE Scan on state (cost=0.00..2.02 rows=101 width=8) (actual time=23.887..24.113 rows=20 loops=1)
-> Index Scan using state_groups_state_type_idx on state_groups_state (cost=0.56..2189.40 rows=5557 width=84) (actual time=0.016..1.159 rows=1356 loops=20)
Index Cond: (state_group = state.state_group)
```
This cuts the execution time from ~190ms to ~130ms, i.e. a reduction
of ~30%.
The full plans are visualised at https://explain.depesz.com/s/WpbT and
https://explain.depesz.com/s/KlEk
Signed-off-by: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
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