diff options
Diffstat (limited to 'synapse/handlers/federation.py')
| -rw-r--r-- | synapse/handlers/federation.py | 324 |
1 files changed, 152 insertions, 172 deletions
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 60391d07c4..533b82c783 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -21,8 +21,8 @@ import logging import sys import six -from six import iteritems -from six.moves import http_client +from six import iteritems, itervalues +from six.moves import http_client, zip from signedjson.key import decode_verify_key_bytes from signedjson.sign import verify_signed_json @@ -76,7 +76,7 @@ class FederationHandler(BaseHandler): self.hs = hs self.store = hs.get_datastore() - self.replication_layer = hs.get_federation_client() + self.federation_client = hs.get_federation_client() self.state_handler = hs.get_state_handler() self.server_name = hs.hostname self.keyring = hs.get_keyring() @@ -255,7 +255,7 @@ class FederationHandler(BaseHandler): # know about for p in prevs - seen: state, got_auth_chain = ( - yield self.replication_layer.get_state_for_room( + yield self.federation_client.get_state_for_room( origin, pdu.room_id, p ) ) @@ -338,7 +338,7 @@ class FederationHandler(BaseHandler): # # see https://github.com/matrix-org/synapse/pull/1744 - missing_events = yield self.replication_layer.get_missing_events( + missing_events = yield self.federation_client.get_missing_events( origin, pdu.room_id, earliest_events_ids=list(latest), @@ -400,7 +400,7 @@ class FederationHandler(BaseHandler): ) try: - event_stream_id, max_stream_id = yield self._persist_auth_tree( + yield self._persist_auth_tree( origin, auth_chain, state, event ) except AuthError as e: @@ -444,7 +444,7 @@ class FederationHandler(BaseHandler): yield self._handle_new_events(origin, event_infos) try: - context, event_stream_id, max_stream_id = yield self._handle_new_event( + context = yield self._handle_new_event( origin, event, state=state, @@ -469,24 +469,16 @@ class FederationHandler(BaseHandler): except StoreError: logger.exception("Failed to store room.") - extra_users = [] - if event.type == EventTypes.Member: - target_user_id = event.state_key - target_user = UserID.from_string(target_user_id) - extra_users.append(target_user) - - self.notifier.on_new_room_event( - event, event_stream_id, max_stream_id, - extra_users=extra_users - ) - if event.type == EventTypes.Member: if event.membership == Membership.JOIN: # Only fire user_joined_room if the user has acutally # joined the room. Don't bother if the user is just # changing their profile info. newly_joined = True - prev_state_id = context.prev_state_ids.get( + + prev_state_ids = yield context.get_prev_state_ids(self.store) + + prev_state_id = prev_state_ids.get( (event.type, event.state_key) ) if prev_state_id: @@ -498,7 +490,7 @@ class FederationHandler(BaseHandler): if newly_joined: user = UserID.from_string(event.state_key) - yield user_joined_room(self.distributor, user, event.room_id) + yield self.user_joined_room(user, event.room_id) @log_function @defer.inlineCallbacks @@ -519,7 +511,7 @@ class FederationHandler(BaseHandler): if dest == self.server_name: raise SynapseError(400, "Can't backfill from self.") - events = yield self.replication_layer.backfill( + events = yield self.federation_client.backfill( dest, room_id, limit=limit, @@ -567,7 +559,7 @@ class FederationHandler(BaseHandler): state_events = {} events_to_state = {} for e_id in edges: - state, auth = yield self.replication_layer.get_state_for_room( + state, auth = yield self.federation_client.get_state_for_room( destination=dest, room_id=room_id, event_id=e_id @@ -609,7 +601,7 @@ class FederationHandler(BaseHandler): results = yield logcontext.make_deferred_yieldable(defer.gatherResults( [ logcontext.run_in_background( - self.replication_layer.get_pdu, + self.federation_client.get_pdu, [dest], event_id, outlier=True, @@ -731,7 +723,7 @@ class FederationHandler(BaseHandler): """ joined_users = [ (state_key, int(event.depth)) - for (e_type, state_key), event in state.iteritems() + for (e_type, state_key), event in iteritems(state) if e_type == EventTypes.Member and event.membership == Membership.JOIN ] @@ -748,7 +740,7 @@ class FederationHandler(BaseHandler): except Exception: pass - return sorted(joined_domains.iteritems(), key=lambda d: d[1]) + return sorted(joined_domains.items(), key=lambda d: d[1]) curr_domains = get_domains_from_state(curr_state) @@ -811,7 +803,7 @@ class FederationHandler(BaseHandler): tried_domains = set(likely_domains) tried_domains.add(self.server_name) - event_ids = list(extremities.iterkeys()) + event_ids = list(extremities.keys()) logger.debug("calling resolve_state_groups in _maybe_backfill") resolve = logcontext.preserve_fn( @@ -827,15 +819,15 @@ class FederationHandler(BaseHandler): states = dict(zip(event_ids, [s.state for s in states])) state_map = yield self.store.get_events( - [e_id for ids in states.itervalues() for e_id in ids.itervalues()], + [e_id for ids in itervalues(states) for e_id in itervalues(ids)], get_prev_content=False ) states = { key: { k: state_map[e_id] - for k, e_id in state_dict.iteritems() + for k, e_id in iteritems(state_dict) if e_id in state_map - } for key, state_dict in states.iteritems() + } for key, state_dict in iteritems(states) } for e_id, _ in sorted_extremeties_tuple: @@ -890,7 +882,7 @@ class FederationHandler(BaseHandler): Invites must be signed by the invitee's server before distribution. """ - pdu = yield self.replication_layer.send_invite( + pdu = yield self.federation_client.send_invite( destination=target_host, room_id=event.room_id, event_id=event.event_id, @@ -906,16 +898,6 @@ class FederationHandler(BaseHandler): [auth_id for auth_id, _ in event.auth_events], include_given=True ) - - for event in auth: - event.signatures.update( - compute_event_signature( - event, - self.hs.hostname, - self.hs.config.signing_key[0] - ) - ) - defer.returnValue([e for e in auth]) @log_function @@ -949,7 +931,7 @@ class FederationHandler(BaseHandler): self.room_queues[room_id] = [] - yield self.store.clean_room_for_join(room_id) + yield self._clean_room_for_join(room_id) handled_events = set() @@ -962,7 +944,7 @@ class FederationHandler(BaseHandler): target_hosts.insert(0, origin) except ValueError: pass - ret = yield self.replication_layer.send_join(target_hosts, event) + ret = yield self.federation_client.send_join(target_hosts, event) origin = ret["origin"] state = ret["state"] @@ -988,15 +970,10 @@ class FederationHandler(BaseHandler): # FIXME pass - event_stream_id, max_stream_id = yield self._persist_auth_tree( + yield self._persist_auth_tree( origin, auth_chain, state, event ) - self.notifier.on_new_room_event( - event, event_stream_id, max_stream_id, - extra_users=[joinee] - ) - logger.debug("Finished joining %s to %s", joinee, room_id) finally: room_queue = self.room_queues[room_id] @@ -1091,7 +1068,7 @@ class FederationHandler(BaseHandler): # would introduce the danger of backwards-compatibility problems. event.internal_metadata.send_on_behalf_of = origin - context, event_stream_id, max_stream_id = yield self._handle_new_event( + context = yield self._handle_new_event( origin, event ) @@ -1101,25 +1078,17 @@ class FederationHandler(BaseHandler): event.signatures, ) - extra_users = [] - if event.type == EventTypes.Member: - target_user_id = event.state_key - target_user = UserID.from_string(target_user_id) - extra_users.append(target_user) - - self.notifier.on_new_room_event( - event, event_stream_id, max_stream_id, extra_users=extra_users - ) - if event.type == EventTypes.Member: if event.content["membership"] == Membership.JOIN: user = UserID.from_string(event.state_key) - yield user_joined_room(self.distributor, user, event.room_id) + yield self.user_joined_room(user, event.room_id) + + prev_state_ids = yield context.get_prev_state_ids(self.store) - state_ids = list(context.prev_state_ids.values()) + state_ids = list(prev_state_ids.values()) auth_chain = yield self.store.get_auth_chain(state_ids) - state = yield self.store.get_events(list(context.prev_state_ids.values())) + state = yield self.store.get_events(list(prev_state_ids.values())) defer.returnValue({ "state": list(state.values()), @@ -1181,17 +1150,7 @@ class FederationHandler(BaseHandler): ) context = yield self.state_handler.compute_event_context(event) - - event_stream_id, max_stream_id = yield self.store.persist_event( - event, - context=context, - ) - - target_user = UserID.from_string(event.state_key) - self.notifier.on_new_room_event( - event, event_stream_id, max_stream_id, - extra_users=[target_user], - ) + yield self._persist_events([(event, context)]) defer.returnValue(event) @@ -1216,30 +1175,20 @@ class FederationHandler(BaseHandler): except ValueError: pass - yield self.replication_layer.send_leave( + yield self.federation_client.send_leave( target_hosts, event ) context = yield self.state_handler.compute_event_context(event) - - event_stream_id, max_stream_id = yield self.store.persist_event( - event, - context=context, - ) - - target_user = UserID.from_string(event.state_key) - self.notifier.on_new_room_event( - event, event_stream_id, max_stream_id, - extra_users=[target_user], - ) + yield self._persist_events([(event, context)]) defer.returnValue(event) @defer.inlineCallbacks def _make_and_verify_event(self, target_hosts, room_id, user_id, membership, content={},): - origin, pdu = yield self.replication_layer.make_membership_event( + origin, pdu = yield self.federation_client.make_membership_event( target_hosts, room_id, user_id, @@ -1284,7 +1233,7 @@ class FederationHandler(BaseHandler): @log_function def on_make_leave_request(self, room_id, user_id): """ We've received a /make_leave/ request, so we create a partial - join event for the room and return that. We do *not* persist or + leave event for the room and return that. We do *not* persist or process it until the other server has signed it and sent it back. """ builder = self.event_builder_factory.new({ @@ -1323,7 +1272,7 @@ class FederationHandler(BaseHandler): event.internal_metadata.outlier = False - context, event_stream_id, max_stream_id = yield self._handle_new_event( + yield self._handle_new_event( origin, event ) @@ -1333,16 +1282,6 @@ class FederationHandler(BaseHandler): event.signatures, ) - extra_users = [] - if event.type == EventTypes.Member: - target_user_id = event.state_key - target_user = UserID.from_string(target_user_id) - extra_users.append(target_user) - - self.notifier.on_new_room_event( - event, event_stream_id, max_stream_id, extra_users=extra_users - ) - defer.returnValue(None) @defer.inlineCallbacks @@ -1375,18 +1314,6 @@ class FederationHandler(BaseHandler): del results[(event.type, event.state_key)] res = list(results.values()) - for event in res: - # We sign these again because there was a bug where we - # incorrectly signed things the first time round - if self.is_mine_id(event.event_id): - event.signatures.update( - compute_event_signature( - event, - self.hs.hostname, - self.hs.config.signing_key[0] - ) - ) - defer.returnValue(res) else: defer.returnValue([]) @@ -1461,18 +1388,6 @@ class FederationHandler(BaseHandler): ) if event: - if self.is_mine_id(event.event_id): - # FIXME: This is a temporary work around where we occasionally - # return events slightly differently than when they were - # originally signed - event.signatures.update( - compute_event_signature( - event, - self.hs.hostname, - self.hs.config.signing_key[0] - ) - ) - in_room = yield self.auth.check_host_in_room( event.room_id, origin @@ -1508,9 +1423,8 @@ class FederationHandler(BaseHandler): event, context ) - event_stream_id, max_stream_id = yield self.store.persist_event( - event, - context=context, + yield self._persist_events( + [(event, context)], backfilled=backfilled, ) except: # noqa: E722, as we reraise the exception this is fine. @@ -1523,15 +1437,7 @@ class FederationHandler(BaseHandler): six.reraise(tp, value, tb) - if not backfilled: - # this intentionally does not yield: we don't care about the result - # and don't need to wait for it. - logcontext.run_in_background( - self.pusher_pool.on_new_notifications, - event_stream_id, max_stream_id, - ) - - defer.returnValue((context, event_stream_id, max_stream_id)) + defer.returnValue(context) @defer.inlineCallbacks def _handle_new_events(self, origin, event_infos, backfilled=False): @@ -1539,6 +1445,8 @@ class FederationHandler(BaseHandler): should not depend on one another, e.g. this should be used to persist a bunch of outliers, but not a chunk of individual events that depend on each other for state calculations. + + Notifies about the events where appropriate. """ contexts = yield logcontext.make_deferred_yieldable(defer.gatherResults( [ @@ -1553,10 +1461,10 @@ class FederationHandler(BaseHandler): ], consumeErrors=True, )) - yield self.store.persist_events( + yield self._persist_events( [ (ev_info["event"], context) - for ev_info, context in itertools.izip(event_infos, contexts) + for ev_info, context in zip(event_infos, contexts) ], backfilled=backfilled, ) @@ -1565,7 +1473,8 @@ class FederationHandler(BaseHandler): def _persist_auth_tree(self, origin, auth_events, state, event): """Checks the auth chain is valid (and passes auth checks) for the state and event. Then persists the auth chain and state atomically. - Persists the event seperately. + Persists the event separately. Notifies about the persisted events + where appropriate. Will attempt to fetch missing auth events. @@ -1576,8 +1485,7 @@ class FederationHandler(BaseHandler): event (Event) Returns: - 2-tuple of (event_stream_id, max_stream_id) from the persist_event - call for `event` + Deferred """ events_to_context = {} for e in itertools.chain(auth_events, state): @@ -1603,7 +1511,7 @@ class FederationHandler(BaseHandler): missing_auth_events.add(e_id) for e_id in missing_auth_events: - m_ev = yield self.replication_layer.get_pdu( + m_ev = yield self.federation_client.get_pdu( [origin], e_id, outlier=True, @@ -1641,7 +1549,7 @@ class FederationHandler(BaseHandler): raise events_to_context[e.event_id].rejected = RejectedReason.AUTH_ERROR - yield self.store.persist_events( + yield self._persist_events( [ (e, events_to_context[e.event_id]) for e in itertools.chain(auth_events, state) @@ -1652,12 +1560,10 @@ class FederationHandler(BaseHandler): event, old_state=state ) - event_stream_id, max_stream_id = yield self.store.persist_event( - event, new_event_context, + yield self._persist_events( + [(event, new_event_context)], ) - defer.returnValue((event_stream_id, max_stream_id)) - @defer.inlineCallbacks def _prep_event(self, origin, event, state=None, auth_events=None): """ @@ -1676,8 +1582,9 @@ class FederationHandler(BaseHandler): ) if not auth_events: + prev_state_ids = yield context.get_prev_state_ids(self.store) auth_events_ids = yield self.auth.compute_auth_events( - event, context.prev_state_ids, for_verification=True, + event, prev_state_ids, for_verification=True, ) auth_events = yield self.store.get_events(auth_events_ids) auth_events = { @@ -1747,15 +1654,6 @@ class FederationHandler(BaseHandler): local_auth_chain, remote_auth_chain ) - for event in ret["auth_chain"]: - event.signatures.update( - compute_event_signature( - event, - self.hs.hostname, - self.hs.config.signing_key[0] - ) - ) - logger.debug("on_query_auth returning: %s", ret) defer.returnValue(ret) @@ -1831,7 +1729,7 @@ class FederationHandler(BaseHandler): logger.info("Missing auth: %s", missing_auth) # If we don't have all the auth events, we need to get them. try: - remote_auth_chain = yield self.replication_layer.get_event_auth( + remote_auth_chain = yield self.federation_client.get_event_auth( origin, event.room_id, event.event_id ) @@ -1936,9 +1834,10 @@ class FederationHandler(BaseHandler): break if do_resolution: + prev_state_ids = yield context.get_prev_state_ids(self.store) # 1. Get what we think is the auth chain. auth_ids = yield self.auth.compute_auth_events( - event, context.prev_state_ids + event, prev_state_ids ) local_auth_chain = yield self.store.get_auth_chain( auth_ids, include_given=True @@ -1946,7 +1845,7 @@ class FederationHandler(BaseHandler): try: # 2. Get remote difference. - result = yield self.replication_layer.query_auth( + result = yield self.federation_client.query_auth( origin, event.room_id, event.event_id, @@ -2028,21 +1927,34 @@ class FederationHandler(BaseHandler): k: a.event_id for k, a in iteritems(auth_events) if k != event_key } - context.current_state_ids = dict(context.current_state_ids) - context.current_state_ids.update(state_updates) - if context.delta_ids is not None: - context.delta_ids = dict(context.delta_ids) - context.delta_ids.update(state_updates) - context.prev_state_ids = dict(context.prev_state_ids) - context.prev_state_ids.update({ + current_state_ids = yield context.get_current_state_ids(self.store) + current_state_ids = dict(current_state_ids) + + current_state_ids.update(state_updates) + + prev_state_ids = yield context.get_prev_state_ids(self.store) + prev_state_ids = dict(prev_state_ids) + + prev_state_ids.update({ k: a.event_id for k, a in iteritems(auth_events) }) - context.state_group = yield self.store.store_state_group( + + # 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( event.event_id, event.room_id, - prev_group=context.prev_group, - delta_ids=context.delta_ids, - current_state_ids=context.current_state_ids, + prev_group=prev_group, + delta_ids=state_updates, + current_state_ids=current_state_ids, + ) + + yield context.update_state( + state_group=state_group, + current_state_ids=current_state_ids, + prev_state_ids=prev_state_ids, + prev_group=prev_group, + delta_ids=state_updates, ) @defer.inlineCallbacks @@ -2232,7 +2144,7 @@ class FederationHandler(BaseHandler): yield member_handler.send_membership_event(None, event, context) else: destinations = set(x.split(":", 1)[-1] for x in (sender_user_id, room_id)) - yield self.replication_layer.forward_third_party_invite( + yield self.federation_client.forward_third_party_invite( destinations, room_id, event_dict, @@ -2282,7 +2194,8 @@ class FederationHandler(BaseHandler): event.content["third_party_invite"]["signed"]["token"] ) original_invite = None - original_invite_id = context.prev_state_ids.get(key) + prev_state_ids = yield context.get_prev_state_ids(self.store) + original_invite_id = prev_state_ids.get(key) if original_invite_id: original_invite = yield self.store.get_event( original_invite_id, allow_none=True @@ -2324,7 +2237,8 @@ class FederationHandler(BaseHandler): signed = event.content["third_party_invite"]["signed"] token = signed["token"] - invite_event_id = context.prev_state_ids.get( + prev_state_ids = yield context.get_prev_state_ids(self.store) + invite_event_id = prev_state_ids.get( (EventTypes.ThirdPartyInvite, token,) ) @@ -2385,3 +2299,69 @@ class FederationHandler(BaseHandler): ) if "valid" not in response or not response["valid"]: raise AuthError(403, "Third party certificate was invalid") + + @defer.inlineCallbacks + def _persist_events(self, event_and_contexts, backfilled=False): + """Persists events and tells the notifier/pushers about them, if + necessary. + + Args: + event_and_contexts(list[tuple[FrozenEvent, EventContext]]) + backfilled (bool): Whether these events are a result of + backfilling or not + + Returns: + Deferred + """ + max_stream_id = yield self.store.persist_events( + event_and_contexts, + backfilled=backfilled, + ) + + if not backfilled: # Never notify for backfilled events + for event, _ in event_and_contexts: + self._notify_persisted_event(event, max_stream_id) + + def _notify_persisted_event(self, event, max_stream_id): + """Checks to see if notifier/pushers should be notified about the + event or not. + + Args: + event (FrozenEvent) + max_stream_id (int): The max_stream_id returned by persist_events + """ + + extra_users = [] + if event.type == EventTypes.Member: + target_user_id = event.state_key + + # We notify for memberships if its an invite for one of our + # users + if event.internal_metadata.is_outlier(): + if event.membership != Membership.INVITE: + if not self.is_mine_id(target_user_id): + return + + target_user = UserID.from_string(target_user_id) + extra_users.append(target_user) + elif event.internal_metadata.is_outlier(): + return + + event_stream_id = event.internal_metadata.stream_ordering + self.notifier.on_new_room_event( + event, event_stream_id, max_stream_id, + extra_users=extra_users + ) + + logcontext.run_in_background( + self.pusher_pool.on_new_notifications, + event_stream_id, max_stream_id, + ) + + def _clean_room_for_join(self, room_id): + return self.store.clean_room_for_join(room_id) + + def user_joined_room(self, user, room_id): + """Called when a new user has joined the room + """ + return user_joined_room(self.distributor, user, room_id) |