diff options
Diffstat (limited to 'synapse/handlers/federation.py')
| -rw-r--r-- | synapse/handlers/federation.py | 129 |
1 files changed, 82 insertions, 47 deletions
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 488058fe68..8cafcfdab0 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -45,6 +45,7 @@ from synapse.api.errors import ( from synapse.api.room_versions import KNOWN_ROOM_VERSIONS, RoomVersions from synapse.crypto.event_signing import compute_event_signature from synapse.event_auth import auth_types_for_event +from synapse.events.snapshot import EventContext from synapse.events.validator import EventValidator from synapse.logging.context import ( make_deferred_yieldable, @@ -109,6 +110,8 @@ class FederationHandler(BaseHandler): self.hs = hs self.store = hs.get_datastore() + self.storage = hs.get_storage() + self.state_store = self.storage.state self.federation_client = hs.get_federation_client() self.state_handler = hs.get_state_handler() self.server_name = hs.hostname @@ -180,7 +183,7 @@ class FederationHandler(BaseHandler): try: self._sanity_check_event(pdu) except SynapseError as err: - logger.warn( + logger.warning( "[%s %s] Received event failed sanity checks", room_id, event_id ) raise FederationError("ERROR", err.code, err.msg, affected=pdu.event_id) @@ -301,7 +304,7 @@ class FederationHandler(BaseHandler): # following. if sent_to_us_directly: - logger.warn( + logger.warning( "[%s %s] Rejecting: failed to fetch %d prev events: %s", room_id, event_id, @@ -324,7 +327,7 @@ class FederationHandler(BaseHandler): event_map = {event_id: pdu} try: # Get the state of the events we know about - ours = yield self.store.get_state_groups_ids(room_id, seen) + ours = yield self.state_store.get_state_groups_ids(room_id, seen) # state_maps is a list of mappings from (type, state_key) to event_id state_maps = list( @@ -350,10 +353,11 @@ class FederationHandler(BaseHandler): # note that if any of the missing prevs share missing state or # auth events, the requests to fetch those events are deduped # by the get_pdu_cache in federation_client. - remote_state, got_auth_chain = ( - yield self.federation_client.get_state_for_room( - origin, room_id, p - ) + ( + remote_state, + got_auth_chain, + ) = yield self.federation_client.get_state_for_room( + origin, room_id, p ) # we want the state *after* p; get_state_for_room returns the @@ -405,7 +409,7 @@ class FederationHandler(BaseHandler): state = [event_map[e] for e in six.itervalues(state_map)] auth_chain = list(auth_chains) except Exception: - logger.warn( + logger.warning( "[%s %s] Error attempting to resolve state at missing " "prev_events", room_id, @@ -518,7 +522,9 @@ class FederationHandler(BaseHandler): # We failed to get the missing events, but since we need to handle # the case of `get_missing_events` not returning the necessary # events anyway, it is safe to simply log the error and continue. - logger.warn("[%s %s]: Failed to get prev_events: %s", room_id, event_id, e) + logger.warning( + "[%s %s]: Failed to get prev_events: %s", room_id, event_id, e + ) return logger.info( @@ -545,7 +551,7 @@ class FederationHandler(BaseHandler): yield self.on_receive_pdu(origin, ev, sent_to_us_directly=False) except FederationError as e: if e.code == 403: - logger.warn( + logger.warning( "[%s %s] Received prev_event %s failed history check.", room_id, event_id, @@ -888,7 +894,7 @@ class FederationHandler(BaseHandler): # We set `check_history_visibility_only` as we might otherwise get false # positives from users having been erased. filtered_extremities = yield filter_events_for_server( - self.store, + self.storage, self.server_name, list(extremities_events.values()), redact=False, @@ -1059,7 +1065,7 @@ class FederationHandler(BaseHandler): SynapseError if the event does not pass muster """ if len(ev.prev_event_ids()) > 20: - logger.warn( + logger.warning( "Rejecting event %s which has %i prev_events", ev.event_id, len(ev.prev_event_ids()), @@ -1067,7 +1073,7 @@ class FederationHandler(BaseHandler): raise SynapseError(http_client.BAD_REQUEST, "Too many prev_events") if len(ev.auth_event_ids()) > 10: - logger.warn( + logger.warning( "Rejecting event %s which has %i auth_events", ev.event_id, len(ev.auth_event_ids()), @@ -1101,7 +1107,7 @@ class FederationHandler(BaseHandler): @defer.inlineCallbacks def do_invite_join(self, target_hosts, room_id, joinee, content): """ Attempts to join the `joinee` to the room `room_id` via the - server `target_host`. + servers contained in `target_hosts`. This first triggers a /make_join/ request that returns a partial event that we can fill out and sign. This is then sent to the @@ -1110,6 +1116,15 @@ class FederationHandler(BaseHandler): We suspend processing of any received events from this room until we have finished processing the join. + + Args: + target_hosts (Iterable[str]): List of servers to attempt to join the room with. + + room_id (str): The ID of the room to join. + + joinee (str): The User ID of the joining user. + + content (dict): The event content to use for the join event. """ logger.debug("Joining %s to %s", joinee, room_id) @@ -1169,6 +1184,22 @@ class FederationHandler(BaseHandler): yield self._persist_auth_tree(origin, auth_chain, state, event) + # Check whether this room is the result of an upgrade of a room we already know + # about. If so, migrate over user information + predecessor = yield self.store.get_room_predecessor(room_id) + if not predecessor: + return + old_room_id = predecessor["room_id"] + logger.debug( + "Found predecessor for %s during remote join: %s", room_id, old_room_id + ) + + # We retrieve the room member handler here as to not cause a cyclic dependency + member_handler = self.hs.get_room_member_handler() + yield member_handler.transfer_room_state_on_room_upgrade( + old_room_id, room_id + ) + logger.debug("Finished joining %s to %s", joinee, room_id) finally: room_queue = self.room_queues[room_id] @@ -1203,7 +1234,7 @@ class FederationHandler(BaseHandler): with nested_logging_context(p.event_id): yield self.on_receive_pdu(origin, p, sent_to_us_directly=True) except Exception as e: - logger.warn( + logger.warning( "Error handling queued PDU %s from %s: %s", p.event_id, origin, e ) @@ -1250,7 +1281,7 @@ class FederationHandler(BaseHandler): builder=builder ) except AuthError as e: - logger.warn("Failed to create join %r because %s", event, e) + logger.warning("Failed to create join to %s because %s", room_id, e) raise e event_allowed = yield self.third_party_event_rules.check_event_allowed( @@ -1494,7 +1525,7 @@ class FederationHandler(BaseHandler): room_version, event, context, do_sig_check=False ) except AuthError as e: - logger.warn("Failed to create new leave %r because %s", event, e) + logger.warning("Failed to create new leave %r because %s", event, e) raise e return event @@ -1549,7 +1580,7 @@ class FederationHandler(BaseHandler): event_id, allow_none=False, check_room_id=room_id ) - state_groups = yield self.store.get_state_groups(room_id, [event_id]) + state_groups = yield self.state_store.get_state_groups(room_id, [event_id]) if state_groups: _, state = list(iteritems(state_groups)).pop() @@ -1578,7 +1609,7 @@ class FederationHandler(BaseHandler): event_id, allow_none=False, check_room_id=room_id ) - state_groups = yield self.store.get_state_groups_ids(room_id, [event_id]) + state_groups = yield self.state_store.get_state_groups_ids(room_id, [event_id]) if state_groups: _, state = list(state_groups.items()).pop() @@ -1606,7 +1637,7 @@ class FederationHandler(BaseHandler): events = yield self.store.get_backfill_events(room_id, pdu_list, limit) - events = yield filter_events_for_server(self.store, origin, events) + events = yield filter_events_for_server(self.storage, origin, events) return events @@ -1636,7 +1667,7 @@ class FederationHandler(BaseHandler): if not in_room: raise AuthError(403, "Host not in room.") - events = yield filter_events_for_server(self.store, origin, [event]) + events = yield filter_events_for_server(self.storage, origin, [event]) event = events[0] return event else: @@ -1788,7 +1819,7 @@ class FederationHandler(BaseHandler): # cause SynapseErrors in auth.check. We don't want to give up # the attempt to federate altogether in such cases. - logger.warn("Rejecting %s because %s", e.event_id, err.msg) + logger.warning("Rejecting %s because %s", e.event_id, err.msg) if e == event: raise @@ -1841,12 +1872,7 @@ class FederationHandler(BaseHandler): if c and c.type == EventTypes.Create: auth_events[(c.type, c.state_key)] = c - try: - yield self.do_auth(origin, event, context, auth_events=auth_events) - except AuthError as e: - logger.warn("[%s %s] Rejecting: %s", event.room_id, event.event_id, e.msg) - - context.rejected = RejectedReason.AUTH_ERROR + context = yield self.do_auth(origin, event, context, auth_events=auth_events) if not context.rejected: yield self._check_for_soft_fail(event, state, backfilled) @@ -1902,7 +1928,7 @@ class FederationHandler(BaseHandler): # given state at the event. This should correctly handle cases # like bans, especially with state res v2. - state_sets = yield self.store.get_state_groups( + state_sets = yield self.state_store.get_state_groups( event.room_id, extrem_ids ) state_sets = list(state_sets.values()) @@ -1938,7 +1964,7 @@ class FederationHandler(BaseHandler): try: event_auth.check(room_version, event, auth_events=current_auth_events) except AuthError as e: - logger.warn("Soft-failing %r because %s", event, e) + logger.warning("Soft-failing %r because %s", event, e) event.internal_metadata.soft_failed = True @defer.inlineCallbacks @@ -1993,7 +2019,7 @@ class FederationHandler(BaseHandler): ) missing_events = yield filter_events_for_server( - self.store, origin, missing_events + self.storage, origin, missing_events ) return missing_events @@ -2015,12 +2041,12 @@ class FederationHandler(BaseHandler): Also NB that this function adds entries to it. Returns: - defer.Deferred[None] + defer.Deferred[EventContext]: updated context object """ room_version = yield self.store.get_room_version(event.room_id) try: - yield self._update_auth_events_and_context_for_auth( + context = yield self._update_auth_events_and_context_for_auth( origin, event, context, auth_events ) except Exception: @@ -2037,8 +2063,10 @@ class FederationHandler(BaseHandler): try: event_auth.check(room_version, event, auth_events=auth_events) except AuthError as e: - logger.warn("Failed auth resolution for %r because %s", event, e) - raise e + logger.warning("Failed auth resolution for %r because %s", event, e) + context.rejected = RejectedReason.AUTH_ERROR + + return context @defer.inlineCallbacks def _update_auth_events_and_context_for_auth( @@ -2062,7 +2090,7 @@ class FederationHandler(BaseHandler): auth_events (dict[(str, str)->synapse.events.EventBase]): Returns: - defer.Deferred[None] + defer.Deferred[EventContext]: updated context """ event_auth_events = set(event.auth_event_ids()) @@ -2101,7 +2129,7 @@ class FederationHandler(BaseHandler): # The other side isn't around or doesn't implement the # endpoint, so lets just bail out. logger.info("Failed to get event auth from remote: %s", e) - return + return context seen_remotes = yield self.store.have_seen_events( [e.event_id for e in remote_auth_chain] @@ -2142,7 +2170,7 @@ class FederationHandler(BaseHandler): if event.internal_metadata.is_outlier(): logger.info("Skipping auth_event fetch for outlier") - return + return context # FIXME: Assumes we have and stored all the state for all the # prev_events @@ -2151,7 +2179,7 @@ class FederationHandler(BaseHandler): ) if not different_auth: - return + return context logger.info( "auth_events refers to events which are not in our calculated auth " @@ -2198,10 +2226,12 @@ class FederationHandler(BaseHandler): auth_events.update(new_state) - yield self._update_context_for_auth_events( + context = yield self._update_context_for_auth_events( event, context, auth_events, event_key ) + return context + @defer.inlineCallbacks def _update_context_for_auth_events(self, event, context, auth_events, event_key): """Update the state_ids in an event context after auth event resolution, @@ -2210,14 +2240,16 @@ class FederationHandler(BaseHandler): Args: event (Event): The event we're handling the context for - context (synapse.events.snapshot.EventContext): event context - to be updated + context (synapse.events.snapshot.EventContext): initial event context auth_events (dict[(str, str)->str]): Events to update in the event context. event_key ((str, str)): (type, state_key) for the current event. this will not be included in the current_state in the context. + + Returns: + Deferred[EventContext]: new event context """ state_updates = { k: a.event_id for k, a in iteritems(auth_events) if k != event_key @@ -2234,7 +2266,7 @@ class FederationHandler(BaseHandler): # create a new state group as a delta from the existing one. prev_group = context.state_group - state_group = yield self.store.store_state_group( + state_group = yield self.state_store.store_state_group( event.event_id, event.room_id, prev_group=prev_group, @@ -2242,7 +2274,7 @@ class FederationHandler(BaseHandler): current_state_ids=current_state_ids, ) - yield context.update_state( + return EventContext.with_state( state_group=state_group, current_state_ids=current_state_ids, prev_state_ids=prev_state_ids, @@ -2431,10 +2463,12 @@ class FederationHandler(BaseHandler): try: yield self.auth.check_from_context(room_version, event, context) except AuthError as e: - logger.warn("Denying new third party invite %r because %s", event, e) + logger.warning("Denying new third party invite %r because %s", event, e) raise e yield self._check_signature(event, context) + + # We retrieve the room member handler here as to not cause a cyclic dependency member_handler = self.hs.get_room_member_handler() yield member_handler.send_membership_event(None, event, context) else: @@ -2487,7 +2521,7 @@ class FederationHandler(BaseHandler): try: yield self.auth.check_from_context(room_version, event, context) except AuthError as e: - logger.warn("Denying third party invite %r because %s", event, e) + logger.warning("Denying third party invite %r because %s", event, e) raise e yield self._check_signature(event, context) @@ -2495,6 +2529,7 @@ class FederationHandler(BaseHandler): # though the sender isn't a local user. event.internal_metadata.send_on_behalf_of = get_domain_from_id(event.sender) + # We retrieve the room member handler here as to not cause a cyclic dependency member_handler = self.hs.get_room_member_handler() yield member_handler.send_membership_event(None, event, context) @@ -2664,7 +2699,7 @@ class FederationHandler(BaseHandler): backfilled=backfilled, ) else: - max_stream_id = yield self.store.persist_events( + max_stream_id = yield self.storage.persistence.persist_events( event_and_contexts, backfilled=backfilled ) |