diff options
Diffstat (limited to 'synapse/handlers/message.py')
| -rw-r--r-- | synapse/handlers/message.py | 93 |
1 files changed, 70 insertions, 23 deletions
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 4c3cd9d12e..3577db0595 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -30,6 +30,7 @@ from synapse.util.async import concurrently_execute, run_on_reactor, ReadWriteLo from synapse.util.caches.snapshot_cache import SnapshotCache from synapse.util.logcontext import preserve_fn, preserve_context_over_deferred from synapse.util.metrics import measure_func +from synapse.util.caches.descriptors import cachedInlineCallbacks from synapse.visibility import filter_events_for_client from ._base import BaseHandler @@ -248,7 +249,7 @@ class MessageHandler(BaseHandler): assert self.hs.is_mine(user), "User must be our own: %s" % (user,) if event.is_state(): - prev_state = self.deduplicate_state_event(event, context) + prev_state = yield self.deduplicate_state_event(event, context) if prev_state is not None: defer.returnValue(prev_state) @@ -263,6 +264,7 @@ class MessageHandler(BaseHandler): presence = self.hs.get_presence_handler() yield presence.bump_presence_active_time(user) + @defer.inlineCallbacks def deduplicate_state_event(self, event, context): """ Checks whether event is in the latest resolved state in context. @@ -270,13 +272,17 @@ class MessageHandler(BaseHandler): If so, returns the version of the event in context. Otherwise, returns None. """ - prev_event = context.current_state.get((event.type, event.state_key)) + prev_event_id = context.prev_state_ids.get((event.type, event.state_key)) + prev_event = yield self.store.get_event(prev_event_id, allow_none=True) + if not prev_event: + return + if prev_event and event.user_id == prev_event.user_id: prev_content = encode_canonical_json(prev_event.content) next_content = encode_canonical_json(event.content) if prev_content == next_content: - return prev_event - return None + defer.returnValue(prev_event) + return @defer.inlineCallbacks def create_and_send_nonmember_event( @@ -802,8 +808,8 @@ class MessageHandler(BaseHandler): event = builder.build() logger.debug( - "Created event %s with current state: %s", - event.event_id, context.current_state, + "Created event %s with state: %s", + event.event_id, context.prev_state_ids, ) defer.returnValue( @@ -826,12 +832,12 @@ class MessageHandler(BaseHandler): self.ratelimit(requester) try: - self.auth.check(event, auth_events=context.current_state) + yield self.auth.check_from_context(event, context) except AuthError as err: logger.warn("Denying new event %r because %s", event, err) raise err - yield self.maybe_kick_guest_users(event, context.current_state.values()) + yield self.maybe_kick_guest_users(event, context) if event.type == EventTypes.CanonicalAlias: # Check the alias is acually valid (at this time at least) @@ -859,6 +865,15 @@ class MessageHandler(BaseHandler): e.sender == event.sender ) + state_to_include_ids = [ + e_id + for k, e_id in context.current_state_ids.items() + if k[0] in self.hs.config.room_invite_state_types + or k[0] == EventTypes.Member and k[1] == event.sender + ] + + state_to_include = yield self.store.get_events(state_to_include_ids) + event.unsigned["invite_room_state"] = [ { "type": e.type, @@ -866,9 +881,7 @@ class MessageHandler(BaseHandler): "content": e.content, "sender": e.sender, } - for k, e in context.current_state.items() - if e.type in self.hs.config.room_invite_state_types - or is_inviter_member_event(e) + for e in state_to_include.values() ] invitee = UserID.from_string(event.state_key) @@ -890,7 +903,14 @@ class MessageHandler(BaseHandler): ) if event.type == EventTypes.Redaction: - if self.auth.check_redaction(event, auth_events=context.current_state): + auth_events_ids = yield self.auth.compute_auth_events( + event, context.prev_state_ids, for_verification=True, + ) + auth_events = yield self.store.get_events(auth_events_ids) + auth_events = { + (e.type, e.state_key): e for e in auth_events.values() + } + if self.auth.check_redaction(event, auth_events=auth_events): original_event = yield self.store.get_event( event.redacts, check_redacted=False, @@ -904,7 +924,7 @@ class MessageHandler(BaseHandler): "You don't have permission to redact events" ) - if event.type == EventTypes.Create and context.current_state: + if event.type == EventTypes.Create and context.prev_state_ids: raise AuthError( 403, "Changing the room create event is forbidden", @@ -925,16 +945,7 @@ class MessageHandler(BaseHandler): event_stream_id, max_stream_id ) - destinations = set() - for k, s in context.current_state.items(): - try: - if k[0] == EventTypes.Member: - if s.content["membership"] == Membership.JOIN: - destinations.add(get_domain_from_id(s.state_key)) - except SynapseError: - logger.warn( - "Failed to get destination from event %s", s.event_id - ) + destinations = yield self.get_joined_hosts_for_room_from_state(context) @defer.inlineCallbacks def _notify(): @@ -952,3 +963,39 @@ class MessageHandler(BaseHandler): preserve_fn(federation_handler.handle_new_event)( event, destinations=destinations, ) + + def get_joined_hosts_for_room_from_state(self, context): + state_group = context.state_group + 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_hosts_for_room_from_state( + state_group, context.current_state_ids + ) + + @cachedInlineCallbacks(num_args=1, cache_context=True) + def _get_joined_hosts_for_room_from_state(self, state_group, current_state_ids, + cache_context): + + # Don't bother getting state for people on the same HS + current_state = yield self.store.get_events([ + e_id for key, e_id in current_state_ids.items() + if key[0] == EventTypes.Member and not self.hs.is_mine_id(key[1]) + ]) + + destinations = set() + for e in current_state.itervalues(): + try: + if e.type == EventTypes.Member: + if e.content["membership"] == Membership.JOIN: + destinations.add(get_domain_from_id(e.state_key)) + except SynapseError: + logger.warn( + "Failed to get destination from event %s", e.event_id + ) + + defer.returnValue(destinations) |