diff options
| -rw-r--r-- | changelog.d/11999.bugfix | 1 | ||||
| -rw-r--r-- | synapse/storage/databases/main/events.py | 27 | ||||
| -rw-r--r-- | tests/storage/test_events.py | 107 |
3 files changed, 124 insertions, 11 deletions
diff --git a/changelog.d/11999.bugfix b/changelog.d/11999.bugfix new file mode 100644 index 0000000000..fd84095900 --- /dev/null +++ b/changelog.d/11999.bugfix @@ -0,0 +1 @@ +Fix long standing bug where `get_rooms_for_user` was not correctly invalidated for remote users when the server left a room. diff --git a/synapse/storage/databases/main/events.py b/synapse/storage/databases/main/events.py index 5246fccad5..a1d7a9b413 100644 --- a/synapse/storage/databases/main/events.py +++ b/synapse/storage/databases/main/events.py @@ -975,6 +975,17 @@ class PersistEventsStore: to_delete = delta_state.to_delete to_insert = delta_state.to_insert + # Figure out the changes of membership to invalidate the + # `get_rooms_for_user` cache. + # We find out which membership events we may have deleted + # and which we have added, then we invalidate the caches for all + # those users. + members_changed = { + state_key + for ev_type, state_key in itertools.chain(to_delete, to_insert) + if ev_type == EventTypes.Member + } + if delta_state.no_longer_in_room: # Server is no longer in the room so we delete the room from # current_state_events, being careful we've already updated the @@ -993,6 +1004,11 @@ class PersistEventsStore: """ txn.execute(sql, (stream_id, self._instance_name, room_id)) + # We also want to invalidate the membership caches for users + # that were in the room. + users_in_room = self.store.get_users_in_room_txn(txn, room_id) + members_changed.update(users_in_room) + self.db_pool.simple_delete_txn( txn, table="current_state_events", @@ -1102,17 +1118,6 @@ class PersistEventsStore: # Invalidate the various caches - # Figure out the changes of membership to invalidate the - # `get_rooms_for_user` cache. - # We find out which membership events we may have deleted - # and which we have added, then we invalidate the caches for all - # those users. - members_changed = { - state_key - for ev_type, state_key in itertools.chain(to_delete, to_insert) - if ev_type == EventTypes.Member - } - for member in members_changed: txn.call_after( self.store.get_rooms_for_user_with_stream_ordering.invalidate, diff --git a/tests/storage/test_events.py b/tests/storage/test_events.py index f462a8b1c7..a8639d8f82 100644 --- a/tests/storage/test_events.py +++ b/tests/storage/test_events.py @@ -329,3 +329,110 @@ class ExtremPruneTestCase(HomeserverTestCase): # Check the new extremity is just the new remote event. self.assert_extremities([local_message_event_id, remote_event_2.event_id]) + + +class InvalideUsersInRoomCacheTestCase(HomeserverTestCase): + servlets = [ + admin.register_servlets, + room.register_servlets, + login.register_servlets, + ] + + def prepare(self, reactor, clock, homeserver): + self.state = self.hs.get_state_handler() + self.persistence = self.hs.get_storage().persistence + self.store = self.hs.get_datastore() + + def test_remote_user_rooms_cache_invalidated(self): + """Test that if the server leaves a room the `get_rooms_for_user` cache + is invalidated for remote users. + """ + + # Set up a room with a local and remote user in it. + user_id = self.register_user("user", "pass") + token = self.login("user", "pass") + + room_id = self.helper.create_room_as( + "user", room_version=RoomVersions.V6.identifier, tok=token + ) + + body = self.helper.send(room_id, body="Test", tok=token) + local_message_event_id = body["event_id"] + + # Fudge a join event for a remote user. + remote_user = "@user:other" + remote_event_1 = event_from_pdu_json( + { + "type": EventTypes.Member, + "state_key": remote_user, + "content": {"membership": Membership.JOIN}, + "room_id": room_id, + "sender": remote_user, + "depth": 5, + "prev_events": [local_message_event_id], + "auth_events": [], + "origin_server_ts": self.clock.time_msec(), + }, + RoomVersions.V6, + ) + + context = self.get_success(self.state.compute_event_context(remote_event_1)) + self.get_success(self.persistence.persist_event(remote_event_1, context)) + + # Call `get_rooms_for_user` to add the remote user to the cache + rooms = self.get_success(self.store.get_rooms_for_user(remote_user)) + self.assertEqual(set(rooms), {room_id}) + + # Now we have the local server leave the room, and check that calling + # `get_user_in_room` for the remote user no longer includes the room. + self.helper.leave(room_id, user_id, tok=token) + + rooms = self.get_success(self.store.get_rooms_for_user(remote_user)) + self.assertEqual(set(rooms), set()) + + def test_room_remote_user_cache_invalidated(self): + """Test that if the server leaves a room the `get_users_in_room` cache + is invalidated for remote users. + """ + + # Set up a room with a local and remote user in it. + user_id = self.register_user("user", "pass") + token = self.login("user", "pass") + + room_id = self.helper.create_room_as( + "user", room_version=RoomVersions.V6.identifier, tok=token + ) + + body = self.helper.send(room_id, body="Test", tok=token) + local_message_event_id = body["event_id"] + + # Fudge a join event for a remote user. + remote_user = "@user:other" + remote_event_1 = event_from_pdu_json( + { + "type": EventTypes.Member, + "state_key": remote_user, + "content": {"membership": Membership.JOIN}, + "room_id": room_id, + "sender": remote_user, + "depth": 5, + "prev_events": [local_message_event_id], + "auth_events": [], + "origin_server_ts": self.clock.time_msec(), + }, + RoomVersions.V6, + ) + + context = self.get_success(self.state.compute_event_context(remote_event_1)) + self.get_success(self.persistence.persist_event(remote_event_1, context)) + + # Call `get_users_in_room` to add the remote user to the cache + users = self.get_success(self.store.get_users_in_room(room_id)) + self.assertEqual(set(users), {user_id, remote_user}) + + # Now we have the local server leave the room, and check that calling + # `get_user_in_room` for the remote user no longer includes the room. + self.helper.leave(room_id, user_id, tok=token) + + users = self.get_success(self.store.get_users_in_room(room_id)) + self.assertEqual(users, []) |