diff options
Diffstat (limited to 'synapse/handlers')
| -rw-r--r-- | synapse/handlers/sync.py | 123 |
1 files changed, 63 insertions, 60 deletions
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py index 8b154fa7e7..6dc9d0fb92 100644 --- a/synapse/handlers/sync.py +++ b/synapse/handlers/sync.py @@ -254,9 +254,7 @@ class SyncHandler(BaseHandler): room_id, sync_config, now_token, since_token=timeline_since_token ) - current_state = yield self.state_handler.get_current_state( - room_id - ) + current_state = yield self.get_state_at(room_id, now_token) defer.returnValue(JoinedSyncResult( room_id=room_id, @@ -353,14 +351,12 @@ class SyncHandler(BaseHandler): room_id, sync_config, leave_token, since_token=timeline_since_token ) - leave_state = yield self.store.get_state_for_events( - [leave_event_id], None - ) + leave_state = yield self.store.get_state_for_event(leave_event_id) defer.returnValue(ArchivedSyncResult( room_id=room_id, timeline=batch, - state=leave_state[leave_event_id], + state=leave_state, private_user_data=self.private_user_data_for_room( room_id, tags_by_room ), @@ -424,6 +420,9 @@ class SyncHandler(BaseHandler): if len(room_events) <= timeline_limit: # There is no gap in any of the rooms. Therefore we can just # partition the new events by room and return them. + logger.debug("Got %i events for incremental sync - not limited", + len(room_events)) + invite_events = [] leave_events = [] events_by_room_id = {} @@ -439,9 +438,11 @@ class SyncHandler(BaseHandler): for room_id in joined_room_ids: recents = events_by_room_id.get(room_id, []) + logger.debug("Events for room %s: %r", room_id, recents) state = { (event.type, event.state_key): event for event in recents if event.is_state()} + limited = False if recents: prev_batch = now_token.copy_and_replace( @@ -450,9 +451,13 @@ class SyncHandler(BaseHandler): else: prev_batch = now_token - state, limited = yield self.check_joined_room( - sync_config, room_id, state - ) + just_joined = yield self.check_joined_room(sync_config, state) + if just_joined: + logger.debug("User has just joined %s: needs full state", + room_id) + state = yield self.get_state_at(room_id, now_token) + # the timeline is inherently limited if we've just joined + limited = True room_sync = JoinedSyncResult( room_id=room_id, @@ -467,10 +472,15 @@ class SyncHandler(BaseHandler): room_id, tags_by_room ), ) + logger.debug("Result for room %s: %r", room_id, room_sync) + if room_sync: joined.append(room_sync) else: + logger.debug("Got %i events for incremental sync - hit limit", + len(room_events)) + invite_events = yield self.store.get_invites_for_user( sync_config.user.to_string() ) @@ -563,6 +573,8 @@ class SyncHandler(BaseHandler): Returns: A Deferred JoinedSyncResult """ + logger.debug("Doing incremental sync for room %s between %s and %s", + room_id, since_token, now_token) # TODO(mjark): Check for redactions we might have missed. @@ -572,30 +584,26 @@ class SyncHandler(BaseHandler): logging.debug("Recents %r", batch) - # TODO(mjark): This seems racy since this isn't being passed a - # token to indicate what point in the stream this is - current_state = yield self.state_handler.get_current_state( - room_id - ) + current_state = yield self.get_state_at(room_id, now_token) - state_at_previous_sync = yield self.get_state_at_previous_sync( - room_id, since_token=since_token + state_at_previous_sync = yield self.get_state_at( + room_id, stream_position=since_token ) - state_events_delta = yield self.compute_state_delta( + state = yield self.compute_state_delta( since_token=since_token, previous_state=state_at_previous_sync, current_state=current_state, ) - state_events_delta, _ = yield self.check_joined_room( - sync_config, room_id, state_events_delta - ) + just_joined = yield self.check_joined_room(sync_config, state) + if just_joined: + state = yield self.get_state_at(room_id, now_token) room_sync = JoinedSyncResult( room_id=room_id, timeline=batch, - state=state_events_delta, + state=state, ephemeral=ephemeral_by_room.get(room_id, []), private_user_data=self.private_user_data_for_room( room_id, tags_by_room @@ -627,16 +635,12 @@ class SyncHandler(BaseHandler): logging.debug("Recents %r", batch) - # TODO(mjark): This seems racy since this isn't being passed a - # token to indicate what point in the stream this is - leave_state = yield self.store.get_state_for_events( - [leave_event.event_id], None + state_events_at_leave = yield self.store.get_state_for_event( + leave_event.event_id ) - state_events_at_leave = leave_state[leave_event.event_id] - - state_at_previous_sync = yield self.get_state_at_previous_sync( - leave_event.room_id, since_token=since_token + state_at_previous_sync = yield self.get_state_at( + leave_event.room_id, stream_position=since_token ) state_events_delta = yield self.compute_state_delta( @@ -659,26 +663,36 @@ class SyncHandler(BaseHandler): defer.returnValue(room_sync) @defer.inlineCallbacks - def get_state_at_previous_sync(self, room_id, since_token): - """ Get the room state at the previous sync the client made. - Returns: - A Deferred map from ((type, state_key)->Event) + def get_state_after_event(self, event): + """ + Get the room state after the given event + + :param synapse.events.EventBase event: event of interest + :return: A Deferred map from ((type, state_key)->Event) + """ + state = yield self.store.get_state_for_event(event.event_id) + if event.is_state(): + state = state.copy() + state[(event.type, event.state_key)] = event + defer.returnValue(state) + + @defer.inlineCallbacks + def get_state_at(self, room_id, stream_position): + """ Get the room state at a particular stream position + :param str room_id: room for which to get state + :param StreamToken stream_position: point at which to get state + :returns: A Deferred map from ((type, state_key)->Event) """ last_events, token = yield self.store.get_recent_events_for_room( - room_id, end_token=since_token.room_key, limit=1, + room_id, end_token=stream_position.room_key, limit=1, ) if last_events: - last_event = last_events[0] - last_context = yield self.state_handler.compute_event_context( - last_event - ) - if last_event.is_state(): - state = last_context.current_state.copy() - state[(last_event.type, last_event.state_key)] = last_event - else: - state = last_context.current_state + last_event = last_events[-1] + state = yield self.get_state_after_event(last_event) + else: + # no events in this room - so presumably no state state = {} defer.returnValue(state) @@ -706,31 +720,20 @@ class SyncHandler(BaseHandler): state_delta[key] = event return state_delta - @defer.inlineCallbacks - def check_joined_room(self, sync_config, room_id, state_delta): + def check_joined_room(self, sync_config, state_delta): """ - Check if the user has just joined the given room. If so, return the - full state for the room, instead of the delta since the last sync. + Check if the user has just joined the given room (so should + be given the full state) :param sync_config: - :param room_id: :param dict[(str,str), synapse.events.FrozenEvent] state_delta: the difference in state since the last sync :returns A deferred Tuple (state_delta, limited) """ - joined = False - limited = False - join_event = state_delta.get(( EventTypes.Member, sync_config.user.to_string()), None) if join_event is not None: if join_event.content["membership"] == Membership.JOIN: - joined = True - - if joined: - state_delta = yield self.state_handler.get_current_state(room_id) - # the timeline is inherently limited if we've just joined - limited = True - - defer.returnValue((state_delta, limited)) + return True + return False |