diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/storage/data_stores/main/roommember.py | 31 | ||||
| -rw-r--r-- | synapse/storage/persist_events.py | 43 |
2 files changed, 59 insertions, 15 deletions
diff --git a/synapse/storage/data_stores/main/roommember.py b/synapse/storage/data_stores/main/roommember.py index 042289f0e0..d5ced05701 100644 --- a/synapse/storage/data_stores/main/roommember.py +++ b/synapse/storage/data_stores/main/roommember.py @@ -868,6 +868,37 @@ class RoomMemberWorkerStore(EventsWorkerStore): desc="get_membership_from_event_ids", ) + async def is_local_host_in_room_ignoring_users( + self, room_id: str, ignore_users: Collection[str] + ) -> bool: + """Check if there are any local users, excluding those in the given + list, in the room. + """ + + clause, args = make_in_list_sql_clause( + self.database_engine, "user_id", ignore_users + ) + + sql = """ + SELECT 1 FROM local_current_membership + WHERE + room_id = ? AND membership = ? + AND NOT (%s) + LIMIT 1 + """ % ( + clause, + ) + + def _is_local_host_in_room_ignoring_users_txn(txn): + txn.execute(sql, (room_id, Membership.JOIN, *args)) + + return bool(txn.fetchone()) + + return await self.db.runInteraction( + "is_local_host_in_room_ignoring_users", + _is_local_host_in_room_ignoring_users_txn, + ) + class RoomMemberBackgroundUpdateStore(SQLBaseStore): def __init__(self, database: Database, db_conn, hs): diff --git a/synapse/storage/persist_events.py b/synapse/storage/persist_events.py index a5370ed527..b950550f23 100644 --- a/synapse/storage/persist_events.py +++ b/synapse/storage/persist_events.py @@ -727,6 +727,7 @@ class EventsPersistenceStorage(object): # Check if any of the given events are a local join that appear in the # current state + events_to_check = [] # Event IDs that aren't an event we're persisting for (typ, state_key), event_id in delta.to_insert.items(): if typ != EventTypes.Member or not self.is_mine_id(state_key): continue @@ -736,8 +737,33 @@ class EventsPersistenceStorage(object): if event.membership == Membership.JOIN: return True - # There's been a change of membership but we don't have a local join - # event in the new events, so we need to check the full state. + # The event is not in `ev_ctx_rm`, so we need to pull it out of + # the DB. + events_to_check.append(event_id) + + # Check if any of the changes that we don't have events for are joins. + if events_to_check: + rows = await self.main_store.get_membership_from_event_ids(events_to_check) + is_still_joined = any(row["membership"] == Membership.JOIN for row in rows) + if is_still_joined: + return True + + # None of the new state events are local joins, so we check the database + # to see if there are any other local users in the room. We ignore users + # whose state has changed as we've already their new state above. + users_to_ignore = [ + state_key + for _, state_key in itertools.chain(delta.to_insert, delta.to_delete) + if self.is_mine_id(state_key) + ] + + if await self.main_store.is_local_host_in_room_ignoring_users( + room_id, users_to_ignore + ): + return True + + # The server will leave the room, so we go and find out which remote + # users will still be joined when we leave. if current_state is None: current_state = await self.main_store.get_current_state_ids(room_id) current_state = dict(current_state) @@ -746,19 +772,6 @@ class EventsPersistenceStorage(object): current_state.update(delta.to_insert) - event_ids = [ - event_id - for (typ, state_key,), event_id in current_state.items() - if typ == EventTypes.Member and self.is_mine_id(state_key) - ] - - rows = await self.main_store.get_membership_from_event_ids(event_ids) - is_still_joined = any(row["membership"] == Membership.JOIN for row in rows) - if is_still_joined: - return True - - # The server will leave the room, so we go and find out which remote - # users will still be joined when we leave. remote_event_ids = [ event_id for (typ, state_key,), event_id in current_state.items() |