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It's important that collections returned from `@cached` methods are not
modified, otherwise future retrievals from the cache will return the
modified collection.
This applies to the return values from `@cached` methods and the values
inside the dictionaries returned by `@cachedList` methods. It's not
necessary for the dictionaries returned by `@cachedList` methods
themselves to be read-only.
Signed-off-by: Sean Quah <seanq@matrix.org>
Co-authored-by: David Robertson <davidr@element.io>
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For better type safety we use an enum instead of strings to
configure direction (backwards or forwards).
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The `/relations` endpoint was not properly handle "live tokens"
(i.e sync tokens), to do this properly we abstract the code that
`/messages` has and re-use it.
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(#14870)
* Allow `AbstractSet` in `StrCollection`
Or else frozensets are excluded. This will be useful in an upcoming
commit where I plan to change a function that accepts `List[str]` to
accept `StrCollection` instead.
* `rooms_to_exclude` -> `rooms_to_exclude_globally`
I am about to make use of this exclusion mechanism to exclude rooms for
a specific user and a specific sync. This rename helps to clarify the
distinction between the global config and the rooms to exclude for a
specific sync.
* Better function names for internal sync methods
* Track a list of excluded rooms on SyncResultBuilder
I plan to feed a list of partially stated rooms for this sync to ignore
* Exclude partial state rooms during eager sync
using the mechanism established in the previous commit
* Track un-partial-state stream in sync tokens
So that we can work out which rooms have become fully-stated during a
given sync period.
* Fix mutation of `@cached` return value
This was fouling up a complement test added alongside this PR.
Excluding a room would mean the set of forgotten rooms in the cache
would be extended. This means that room could be erroneously considered
forgotten in the future.
Introduced in #12310, Synapse 1.57.0. I don't think this had any
user-visible side effects (until now).
* SyncResultBuilder: track rooms to force as newly joined
Similar plan as before. We've omitted rooms from certain sync responses;
now we establish the mechanism to reintroduce them into future syncs.
* Read new field, to present rooms as newly joined
* Force un-partial-stated rooms to be newly-joined
for eager incremental syncs only, provided they're still fully stated
* Notify user stream listeners to wake up long polling syncs
* Changelog
* Typo fix
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
* Unnecessary list cast
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
* Rephrase comment
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
* Another comment
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
* Fixup merge(?)
* Poke notifier when receiving un-partial-stated msg over replication
* Fixup merge whoops
Thanks MV :)
Co-authored-by: Mathieu Velen <mathieuv@matrix.org>
Co-authored-by: Mathieu Velten <mathieuv@matrix.org>
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
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Avoid an n+1 query problem and fetch the bundled aggregations for
m.reference relations in a single query instead of a query per event.
This applies similar logic for as was previously done for edits in
8b309adb436c162510ed1402f33b8741d71fc058 (#11660; threads
in b65acead428653b988351ae8d7b22127a22039cd (#11752); and
annotations in 1799a54a545618782840a60950ef4b64da9ee24d (#14491).
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Avoid an n+1 query problem and fetch the bundled aggregations for
m.annotation relations in a single query instead of a query per event.
This applies similar logic for as was previously done for edits in
8b309adb436c162510ed1402f33b8741d71fc058 (#11660) and threads
in b65acead428653b988351ae8d7b22127a22039cd (#11752).
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Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
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The root node of a thread (and events related to it) are considered
"part of a thread" when validating receipts. This allows clients which
show the root node in both the main timeline and the threaded timeline
to easily send receipts in either.
Note that threaded notifications are not created for these events, these
events created notifications on the main timeline.
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Implement the /threads endpoint from MSC3856.
This is currently unstable and behind an experimental configuration
flag.
It includes a background update to backfill data, results from
the /threads endpoint will be partial until that finishes.
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Fixes a bug where threaded receipts could not be sent for the
main timeline.
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MSC3772 has been abandoned.
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Fixes two related bugs:
* No edit information was bundled for events which aren't `m.room.message`.
* `m.new_content` was not applied for those events.
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Consider an event to be part of a thread if you can follow a
chain of relations up to a thread root.
Part of MSC3773 & MSC3771.
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This fixes a bug where the `/relations` API with `dir=f` would
skip the first item of each page (except the first page), causing
incomplete data to be returned to the client.
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By always returning all requested values from the function
wrapped by cachedList. Otherwise implicit None values get
added into the cache, which are unexpected.
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Implements the following behind an experimental configuration flag:
* A new push rule kind for mutually related events.
* A new default push rule (`.m.rule.thread_reply`) under an unstable prefix.
This is missing part of MSC3772:
* The `.m.rule.thread_reply_to_me` push rule, this depends on MSC3664 / #11804.
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The `latest_event` field of the bundled aggregations for `m.thread` relations
did not include bundled aggregations itself. This resulted in clients needing to
immediately request the event from the server (and thus making it useless that
the latest event itself was serialized instead of just including an event ID).
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Removes references to unstable thread relation, unstable
identifiers for filtering parameters, and the experimental
config flag.
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* Add some type hints to datastore
* newsfile
* change `Collection` to `List`
* refactor return type of `select_users_txn`
* correct type hint in `stream.py`
* Remove `Optional` in `select_users_txn`
* remove not needed return type in `__init__`
* Revert change in `get_stream_id_for_event_txn`
* Remove import from `Literal`
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Consider the requester's ignored users when calculating the
bundled aggregations.
See #12285 / 4df10d32148ae29f792afc68ff774bcbd1915cea
for corresponding changes for the `/relations` endpoint.
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The PaginationChunk class attempted to bundle some properties
together, but really just caused callers to jump through hoops and
hid implementation details.
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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.
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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.
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We fetch the thread summary in two phases:
1. The summary that is shared by all users (count of messages and latest event).
2. Whether the requesting user has participated in the thread.
There's no use in attempting step 2 for events which did not return a summary
from step 1.
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The unstable identifiers are still supported if the experimental configuration
flag is enabled. The unstable identifiers will be removed in a future release.
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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).
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If the latest event in a thread was edited than the original
event content was included in bundled aggregation for
threads instead of the edited event content.
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This should reduce database usage when fetching bundled aggregations
as the number of individual queries (and round trips to the database) are
reduced.
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(#11952)
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(MSC3666) (#11837)
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This should reduce database usage when fetching bundled aggregations
as the number of individual queries (and round trips to the database) are
reduced.
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MSC1849 was replaced by MSC2675, which was merged.
The configuration flag, which defaulted to true, is no
longer useful.
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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).
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Per updates to MSC3440.
This is implement as a separate method since it needs to be cached
on a per-user basis, instead of a per-thread basis.
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This makes the serialization of events synchronous (and it no
longer access the database), but we must manually calculate and
provide the bundled aggregations.
Overall this should cause no change in behavior, but is prep work
for other improvements.
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By using cast and making ignores more specific.
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`COUNT()` never returns `NULL`. A `COUNT(*)` over 0 rows is 0 and a
`COUNT(NULL)` is also 0.
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Adds validation to the Client-Server API to ensure that
the potential thread head does not relate to another event
already. This results in not allowing a thread to "fork" into
other threads.
If the target event is unknown for some reason (maybe it isn't
visible to your homeserver), but is the target of other events
it is assumed that the thread can be created from it. Otherwise,
it is rejected as an unknown event.
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Adds experimental support for `relation_types` and `relation_senders`
fields for filters.
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Adds experimental support for MSC3440's `io.element.thread` relation
type (and the aggregation for it).
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Part of #9744
Removes all redundant `# -*- coding: utf-8 -*-` lines from files, as python 3 automatically reads source code as utf-8 now.
`Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>`
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