diff options
Diffstat (limited to 'synapse/handlers/sliding_sync.py')
| -rw-r--r-- | synapse/handlers/sliding_sync.py | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/synapse/handlers/sliding_sync.py b/synapse/handlers/sliding_sync.py index 1c37f83a2b..de4f33abb8 100644 --- a/synapse/handlers/sliding_sync.py +++ b/synapse/handlers/sliding_sync.py @@ -275,12 +275,6 @@ class SlidingSyncHandler: instance_map=immutabledict(instance_to_max_stream_ordering_map), ) - # If our `to_token` is already the same or ahead of the latest room membership - # for the user, we can just straight-up return the room list (nothing has - # changed) - if membership_snapshot_token.is_before_or_eq(to_token.room_key): - return sync_room_id_set - # Since we fetched the users room list at some point in time after the from/to # tokens, we need to revert/rewind some membership changes to match the point in # time of the `to_token`. In particular, we need to make these fixups: @@ -300,14 +294,20 @@ class SlidingSyncHandler: # 1) Fetch membership changes that fall in the range from `to_token` up to # `membership_snapshot_token` - membership_change_events_after_to_token = ( - await self.store.get_membership_changes_for_user( - user_id, - from_key=to_token.room_key, - to_key=membership_snapshot_token, - excluded_rooms=self.rooms_to_exclude_globally, + # + # If our `to_token` is already the same or ahead of the latest room membership + # for the user, we don't need to do any "2)" fix-ups and can just straight-up + # use the room list from the snapshot as a base (nothing has changed) + membership_change_events_after_to_token = [] + if not membership_snapshot_token.is_before_or_eq(to_token.room_key): + membership_change_events_after_to_token = ( + await self.store.get_membership_changes_for_user( + user_id, + from_key=to_token.room_key, + to_key=membership_snapshot_token, + excluded_rooms=self.rooms_to_exclude_globally, + ) ) - ) # 1) Assemble a list of the last membership events in some given ranges. Someone # could have left and joined multiple times during the given range but we only |