Add a do_users_share_a_room method and use that in the presence handler.

1 files changed, 4 insertions, 5 deletions

diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py

index c88cc18788..471dc86163 100644
--- a/synapse/handlers/presence.py
+++ b/synapse/handlers/presence.py
@@ -159,12 +159,11 @@ class PresenceHandler(BaseHandler):
         if allowed_by_subscription:
             defer.returnValue(True)
 
-        rm_handler = self.homeserver.get_handlers().room_member_handler
-        for room_id in (yield rm_handler.get_rooms_for_user(observer_user)):
-            if observed_user in (yield rm_handler.get_room_members(room_id)):
-                defer.returnValue(True)
+        share_room = yield self.store.do_users_share_a_room(
+            [observer_user, observed_user]
+        )
 
-        defer.returnValue(False)
+        defer.returnValue(share_room)
 
     @defer.inlineCallbacks
     def get_state(self, target_user, auth_user):