diff options
Diffstat (limited to 'synapse/handlers/sync.py')
| -rw-r--r-- | synapse/handlers/sync.py | 118 |
1 files changed, 88 insertions, 30 deletions
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py index 7eed2fcc9b..23983a51ab 100644 --- a/synapse/handlers/sync.py +++ b/synapse/handlers/sync.py @@ -24,6 +24,7 @@ from twisted.internet import defer from synapse.api.constants import EventTypes, Membership from synapse.push.clientformat import format_push_rules_for_user +from synapse.storage.roommember import MemberSummary from synapse.types import RoomStreamToken from synapse.util.async_helpers import concurrently_execute from synapse.util.caches.expiringcache import ExpiringCache @@ -525,6 +526,8 @@ class SyncHandler(object): A deferred dict describing the room summary """ + # FIXME: we could/should get this from room_stats when matthew/stats lands + # FIXME: this promulgates https://github.com/matrix-org/synapse/issues/3305 last_events, _ = yield self.store.get_recent_event_ids_for_room( room_id, end_token=now_token.room_key, limit=1, @@ -537,44 +540,54 @@ class SyncHandler(object): last_event = last_events[-1] state_ids = yield self.store.get_state_ids_for_event( last_event.event_id, [ - (EventTypes.Member, None), (EventTypes.Name, ''), (EventTypes.CanonicalAlias, ''), ] ) - member_ids = { - state_key: event_id - for (t, state_key), event_id in iteritems(state_ids) - if t == EventTypes.Member - } + # this is heavily cached, thus: fast. + details = yield self.store.get_room_summary(room_id) + name_id = state_ids.get((EventTypes.Name, '')) canonical_alias_id = state_ids.get((EventTypes.CanonicalAlias, '')) summary = {} - - # FIXME: it feels very heavy to load up every single membership event - # just to calculate the counts. - member_events = yield self.store.get_events(member_ids.values()) - - joined_user_ids = [] - invited_user_ids = [] - - for ev in member_events.values(): - if ev.content.get("membership") == Membership.JOIN: - joined_user_ids.append(ev.state_key) - elif ev.content.get("membership") == Membership.INVITE: - invited_user_ids.append(ev.state_key) + empty_ms = MemberSummary([], 0) # TODO: only send these when they change. - summary["m.joined_member_count"] = len(joined_user_ids) - summary["m.invited_member_count"] = len(invited_user_ids) + summary["m.joined_member_count"] = ( + details.get(Membership.JOIN, empty_ms).count + ) + summary["m.invited_member_count"] = ( + details.get(Membership.INVITE, empty_ms).count + ) if name_id or canonical_alias_id: defer.returnValue(summary) - # FIXME: order by stream ordering, not alphabetic + joined_user_ids = [ + r[0] for r in details.get(Membership.JOIN, empty_ms).members + ] + invited_user_ids = [ + r[0] for r in details.get(Membership.INVITE, empty_ms).members + ] + gone_user_ids = ( + [r[0] for r in details.get(Membership.LEAVE, empty_ms).members] + + [r[0] for r in details.get(Membership.BAN, empty_ms).members] + ) + + # FIXME: only build up a member_ids list for our heroes + member_ids = {} + for membership in ( + Membership.JOIN, + Membership.INVITE, + Membership.LEAVE, + Membership.BAN + ): + for user_id, event_id in details.get(membership, empty_ms).members: + member_ids[user_id] = event_id + # FIXME: order by stream ordering rather than as returned by SQL me = sync_config.user.to_string() if (joined_user_ids or invited_user_ids): summary['m.heroes'] = sorted( @@ -586,7 +599,11 @@ class SyncHandler(object): )[0:5] else: summary['m.heroes'] = sorted( - [user_id for user_id in member_ids.keys() if user_id != me] + [ + user_id + for user_id in gone_user_ids + if user_id != me + ] )[0:5] if not sync_config.filter_collection.lazy_load_members(): @@ -719,6 +736,26 @@ class SyncHandler(object): lazy_load_members=lazy_load_members, ) elif batch.limited: + state_at_timeline_start = yield self.store.get_state_ids_for_event( + batch.events[0].event_id, types=types, + filtered_types=filtered_types, + ) + + # for now, we disable LL for gappy syncs - see + # https://github.com/vector-im/riot-web/issues/7211#issuecomment-419976346 + # N.B. this slows down incr syncs as we are now processing way + # more state in the server than if we were LLing. + # + # We still have to filter timeline_start to LL entries (above) in order + # for _calculate_state's LL logic to work, as we have to include LL + # members for timeline senders in case they weren't loaded in the initial + # sync. We do this by (counterintuitively) by filtering timeline_start + # members to just be ones which were timeline senders, which then ensures + # all of the rest get included in the state block (if we need to know + # about them). + types = None + filtered_types = None + state_at_previous_sync = yield self.get_state_at( room_id, stream_position=since_token, types=types, filtered_types=filtered_types, @@ -729,24 +766,21 @@ class SyncHandler(object): filtered_types=filtered_types, ) - state_at_timeline_start = yield self.store.get_state_ids_for_event( - batch.events[0].event_id, types=types, - filtered_types=filtered_types, - ) - state_ids = _calculate_state( timeline_contains=timeline_state, timeline_start=state_at_timeline_start, previous=state_at_previous_sync, current=current_state_ids, + # we have to include LL members in case LL initial sync missed them lazy_load_members=lazy_load_members, ) else: state_ids = {} if lazy_load_members: if types: - # We're returning an incremental sync, with no "gap" since - # the previous sync, so normally there would be no state to return + # We're returning an incremental sync, with no + # "gap" since the previous sync, so normally there would be + # no state to return. # But we're lazy-loading, so the client might need some more # member events to understand the events in this timeline. # So we fish out all the member events corresponding to the @@ -1616,10 +1650,24 @@ class SyncHandler(object): ) summary = {} + + # we include a summary in room responses when we're lazy loading + # members (as the client otherwise doesn't have enough info to form + # the name itself). if ( sync_config.filter_collection.lazy_load_members() and ( + # we recalulate the summary: + # if there are membership changes in the timeline, or + # if membership has changed during a gappy sync, or + # if this is an initial sync. any(ev.type == EventTypes.Member for ev in batch.events) or + ( + # XXX: this may include false positives in the form of LL + # members which have snuck into state + batch.limited and + any(t == EventTypes.Member for (t, k) in state) + ) or since_token is None ) ): @@ -1649,6 +1697,16 @@ class SyncHandler(object): unread_notifications["highlight_count"] = notifs["highlight_count"] sync_result_builder.joined.append(room_sync) + + if batch.limited: + user_id = sync_result_builder.sync_config.user.to_string() + logger.info( + "Incremental syncing room %s for user %s with %d state events" % ( + room_id, + user_id, + len(state), + ) + ) elif room_builder.rtype == "archived": room_sync = ArchivedSyncResult( room_id=room_id, |