When a room is deleted in Synapse we remove the event forward
extremities in the room, so if (say a bot) tries to send a message into
the room we error out due to not being able to calculate prev events for
the new event *before* we check if the sender is in the room.
Fixes#8094
* Scaffolding for background process to refresh profiles
* Add scaffolding for background process to refresh profiles for a given server
* Implement the code to select servers to refresh from
* Ensure we don't build up multiple looping calls
* Make `get_profile` able to respect backoffs
* Add logic for refreshing users
* When backing off, schedule a refresh when the backoff is over
* Wake up the background processes when we receive an interesting state event
* Add tests
* Newsfile
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
* Add comment about 1<<62
---------
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
* Remove special-case method for new memberships only, use more generic method
* Only collect profiles from state events in public rooms
* Add a table to track stale remote user profiles
* Add store methods to set and delete rows in this new table
* Mark remote profiles as stale when a member state event comes in to a private room
* Newsfile
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
* Simplify by removing Optionality of `event_id`
* Replace names and avatars with None if they're set to dodgy things
I think this makes more sense anyway.
* Move schema delta to 74 (I missed the boat?)
* Turns out these can be None after all
---------
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
It is not necessary to reach out to the database to check some
parameters if the auto-join rooms are not configured, or (in some cases)
if auto-create rooms is not configured.
* Tweak docstring and type hint
* Flip logic and provide better name
* Separate decision from action
* Track a set of strings, not EventBases
* Require explicit boolean options from callers
* Add explicit option for partial state rooms
* Changelog
* Rename param
When pushing events in partial state rooms down incremental /sync, we
try to find the `m.room.member` state event for their senders by digging
through their auth events, so that we can present the membership to the
client. Events usually have a membership event in their auth events,
with the exception of the `m.room.create` event and a user's first join
into the room.
When implementing #13477, we took the case of a user's first join into
account, but forgot to handle the `m.room.create` case. This change
fixes that.
Signed-off-by: Sean Quah <seanq@matrix.org>
It turns out that no clients rely on server-side aggregation of `m.annotation`
relationships: it's just not very useful as currently implemented.
It's also non-trivial to calculate.
I want to remove it from MSC2677, so to keep the implementation in line, let's
remove it here.
* Change `create_room` return type
* Don't return room alias from /createRoom
* Update other callsites
* Fix up mypy complaints
It looks like new_room_user_id is None iff new_room_id is None. It's a
shame we haven't expressed this in a way that mypy can understand.
* Changelog
Previously, when creating a join event in /make_join, we would decide
whether to include additional fields to satisfy restricted room checks
based on the current state of the room. Then, when building the event,
we would capture the forward extremities of the room to use as prev
events.
This is subject to race conditions. For example, when leaving and
rejoining a room, the following sequence of events leads to a misleading
403 response:
1. /make_join reads the current state of the room and sees that the user
is still in the room. It decides to omit the field required for
restricted room joins.
2. The leave event is persisted and the room's forward extremities are
updated.
3. /make_join builds the event, using the post-leave forward extremities.
The event then fails the restricted room checks.
To mitigate the race, we move the read of the forward extremities closer
to the read of the current state. Ideally, we would compute the state
based off the chosen prev events, but that can involve state resolution,
which is expensive.
Signed-off-by: Sean Quah <seanq@matrix.org>
* Update mypy and mypy-zope
* Remove unused ignores
These used to suppress
```
synapse/storage/engines/__init__.py:28: error: "__new__" must return a
class instance (got "NoReturn") [misc]
```
and
```
synapse/http/matrixfederationclient.py:1270: error: "BaseException" has no attribute "reasons" [attr-defined]
```
(note that we check `hasattr(e, "reasons")` above)
* Avoid empty body warnings, sometimes by marking methods as abstract
E.g.
```
tests/handlers/test_register.py:58: error: Missing return statement [empty-body]
tests/handlers/test_register.py:108: error: Missing return statement [empty-body]
```
* Suppress false positive about `JaegerConfig`
Complaint was
```
synapse/logging/opentracing.py:450: error: Function "Type[Config]" could always be true in boolean context [truthy-function]
```
* Fix not calling `is_state()`
Oops!
```
tests/rest/client/test_third_party_rules.py:428: error: Function "Callable[[], bool]" could always be true in boolean context [truthy-function]
```
* Suppress false positives from ParamSpecs
````
synapse/logging/opentracing.py:971: error: Argument 2 to "_custom_sync_async_decorator" has incompatible type "Callable[[Arg(Callable[P, R], 'func'), **P], _GeneratorContextManager[None]]"; expected "Callable[[Callable[P, R], **P], _GeneratorContextManager[None]]" [arg-type]
synapse/logging/opentracing.py:1017: error: Argument 2 to "_custom_sync_async_decorator" has incompatible type "Callable[[Arg(Callable[P, R], 'func'), **P], _GeneratorContextManager[None]]"; expected "Callable[[Callable[P, R], **P], _GeneratorContextManager[None]]" [arg-type]
````
* Drive-by improvement to `wrapping_logic` annotation
* Workaround false "unreachable" positives
See https://github.com/Shoobx/mypy-zope/issues/91
```
tests/http/test_proxyagent.py:626: error: Statement is unreachable [unreachable]
tests/http/test_proxyagent.py:762: error: Statement is unreachable [unreachable]
tests/http/test_proxyagent.py:826: error: Statement is unreachable [unreachable]
tests/http/test_proxyagent.py:838: error: Statement is unreachable [unreachable]
tests/http/test_proxyagent.py:845: error: Statement is unreachable [unreachable]
tests/http/federation/test_matrix_federation_agent.py:151: error: Statement is unreachable [unreachable]
tests/http/federation/test_matrix_federation_agent.py:452: error: Statement is unreachable [unreachable]
tests/logging/test_remote_handler.py:60: error: Statement is unreachable [unreachable]
tests/logging/test_remote_handler.py:93: error: Statement is unreachable [unreachable]
tests/logging/test_remote_handler.py:127: error: Statement is unreachable [unreachable]
tests/logging/test_remote_handler.py:152: error: Statement is unreachable [unreachable]
```
* Changelog
* Tweak DBAPI2 Protocol to be accepted by mypy 1.0
Some extra context in:
- https://github.com/matrix-org/python-canonicaljson/pull/57
- https://github.com/python/mypy/issues/6002
- https://mypy.readthedocs.io/en/latest/common_issues.html#covariant-subtyping-of-mutable-protocol-members-is-rejected
* Pull in updated canonicaljson lib
so the protocol check just works
* Improve comments in opentracing
I tried to workaround the ignores but found it too much trouble.
I think the corresponding issue is
https://github.com/python/mypy/issues/12909. The mypy repo has a PR
claiming to fix this (https://github.com/python/mypy/pull/14677) which
might mean this gets resolved soon?
* Better annotation for INTERACTIVE_AUTH_CHECKERS
* Drive-by AUTH_TYPE annotation, to remove an ignore
* Fix order of partial state tables when purging
`partial_state_rooms` has an FK on `events` pointing to the join event we
get from `/send_join`, so we must delete from that table before deleting
from `events`.
**NB:** It would be nice to cancel any resync processes for the room
being purged. We do not do this at present. To do so reliably we'd need
an internal HTTP "replication" endpoint, because the worker doing the
resync process may be different to that handling the purge request.
The first time the resync process tries to write data after the deletion
it will fail because we have deleted necessary data e.g. auth
events. AFAICS it will not retry the resync, so the only downside to
not cancelling the resync is a scary-looking traceback.
(This is presumably extremely race-sensitive.)
* Changelog
* admist(?) -> between
* Warn about a race
* Fix typo, thanks Sean
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
---------
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
...when lazy loading of members is not enabled. It's weird to notify
a client that another user's device list has changed when the client
doesn't think that they share a room.
Note that when a room is un-partial stated, device list updates are
emitted for every member in that room over /sync.
Signed-off-by: Sean Quah <seanq@matrix.org>
Fixes#12801.
Complement tests are at
https://github.com/matrix-org/complement/pull/567.
Avoid blocking on full state when handling a subsequent join into a
partial state room.
Also always perform a remote join into partial state rooms, since we do
not know whether the joining user has been banned and want to avoid
leaking history to banned users.
Signed-off-by: Mathieu Velten <mathieuv@matrix.org>
Co-authored-by: Sean Quah <seanq@matrix.org>
Co-authored-by: David Robertson <davidr@element.io>
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>
The per-room account data is no longer unconditionally
fetched, even if all rooms will be filtered out.
Global account data will not be fetched if it will all be
filtered out.
The previous version of the code could mutate a cached value,
but only if the input requested all devices of a user *and* a specific
device.
To avoid this nonsensical situation we no longer fetch a specific
device ID if all of a user's devices are returned.
Ensure that the list of servers in a partial state room always contains
the server we joined off.
Also refactor `get_partial_state_servers_at_join` to return `None` when
the given room is no longer partial stated, to explicitly indicate when
the room has partial state. Otherwise it's not clear whether an empty
list means that the room has full state, or the room is partial stated,
but the server we joined off told us that there are no servers in the
room.
Signed-off-by: Sean Quah <seanq@matrix.org>
If a sync request does not need to calculate per-room entries &
is not generating presence & is not generating device list data
(e.g. during initial sync) avoid the expensive calculation of room
specific data.
This is a micro-optimisation for clients syncing simply to receive
to-device information.
This expands the previous optimisation from being only for initial
sync to being for all sync requests.
It also inverts some of the logic to be inclusive instead of exclusive.
The `parse_enum` helper pulls an enum value from the query string
(by delegating down to the parse_string helper with values generated
from the enum).
This is used to pull out "f" and "b" in most places and then we thread
the resulting Direction enum throughout more code.
`run_in_background` calls re-use the current logging context. When they
are not awaited, they can complete after the current logging context has
been marked as finished, which leads to log spam. Use
`run_as_background_process` instead.
Fixes one of the instances of #13090.
Signed-off-by: Sean Quah <seanq@matrix.org>
* Perfer `type(x) is int` to `isinstance(x, int)`
This covered all additional instances I could see where `x` was
user-controlled.
The remaining cases are
```
$ rg -s 'isinstance.*[^_]int'
tests/replication/_base.py
576: if isinstance(obj, int):
synapse/util/caches/stream_change_cache.py
136: assert isinstance(stream_pos, int)
214: assert isinstance(stream_pos, int)
246: assert isinstance(stream_pos, int)
267: assert isinstance(stream_pos, int)
synapse/replication/tcp/external_cache.py
133: if isinstance(result, int):
synapse/metrics/__init__.py
100: if isinstance(calls, (int, float)):
synapse/handlers/appservice.py
262: assert isinstance(new_token, int)
synapse/config/_util.py
62: if isinstance(p, int):
```
which cover metrics, logic related to `jsonschema`, and replication and
data streams. AFAICS these are all internal to Synapse
* Changelog
* Batch look-ups to see if rooms are partial stated.
* Fix issues found in linting.
* Fix typo.
* Apply suggestions from code review
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
* Clarify comments.
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
* Also improve the cache size while we're at it
* is_partial_state_rooms -> is_partial_state_room_batched
* Run `black`
* Improve annotation for `simple_select_many_batch`
* Fix is_partial_state_room_batched impl
* Okay, _actually_ fix impl
* Update description.
* Update synapse/storage/databases/main/room.py
Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
* Run black.
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
Co-authored-by: David Robertson <davidr@element.io>
