diff --git a/synapse/storage/roommember.py b/synapse/storage/roommember.py
index 2cab065bca..5ce5e8da37 100644
--- a/synapse/storage/roommember.py
+++ b/synapse/storage/roommember.py
@@ -400,3 +400,38 @@ class RoomMemberStore(SQLBaseStore):
)
defer.returnValue(set(row["user_id"] for row in rows))
+
+ def is_host_joined(self, room_id, host, state_group, state_ids):
+ if not state_group:
+ # If state_group is None it means it has yet to be assigned a
+ # state group, i.e. we need to make sure that calls with a state_group
+ # of None don't hit previous cached calls with a None state_group.
+ # To do this we set the state_group to a new object as object() != object()
+ state_group = object()
+
+ return self._get_joined_users_from_context(
+ room_id, state_group, state_ids
+ )
+
+ @cachedInlineCallbacks(num_args=3)
+ def _is_host_joined(self, room_id, host, state_group, current_state_ids):
+ # We don't use `state_group`, its there so that we can cache based
+ # on it. However, its important that its never None, since two current_state's
+ # with a state_group of None are likely to be different.
+ # See bulk_get_push_rules_for_room for how we work around this.
+ assert state_group is not None
+
+ for (etype, state_key), event_id in current_state_ids.items():
+ if etype == EventTypes.Member:
+ try:
+ if get_domain_from_id(state_key) != host:
+ continue
+ except:
+ logger.warn("state_key not user_id: %s", state_key)
+ continue
+
+ event = yield self.store.get_event(event_id, allow_none=True)
+ if event and event.content["membership"] == Membership.JOIN:
+ defer.returnValue(True)
+
+ defer.returnValue(False)
|
