diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/api/auth.py | 6 | ||||
| -rw-r--r-- | synapse/federation/federation_client.py | 67 | ||||
| -rw-r--r-- | synapse/federation/federation_server.py | 14 | ||||
| -rw-r--r-- | synapse/federation/transport/client.py | 24 | ||||
| -rw-r--r-- | synapse/federation/transport/server.py | 20 | ||||
| -rw-r--r-- | synapse/handlers/federation.py | 209 | ||||
| -rw-r--r-- | synapse/handlers/room.py | 102 |
7 files changed, 351 insertions, 91 deletions
diff --git a/synapse/api/auth.py b/synapse/api/auth.py index cf19eda4e9..494c8ac3d4 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -308,7 +308,11 @@ class Auth(object): ) if Membership.JOIN != membership: - # JOIN is the only action you can perform if you're not in the room + if (caller_invited + and Membership.LEAVE == membership + and target_user_id == event.user_id): + return True + if not caller_in_room: # caller isn't joined raise AuthError( 403, diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py index f5b430e046..723f571284 100644 --- a/synapse/federation/federation_client.py +++ b/synapse/federation/federation_client.py @@ -17,6 +17,7 @@ from twisted.internet import defer from .federation_base import FederationBase +from synapse.api.constants import Membership from .units import Edu from synapse.api.errors import ( @@ -357,7 +358,34 @@ class FederationClient(FederationBase): defer.returnValue(signed_auth) @defer.inlineCallbacks - def make_join(self, destinations, room_id, user_id, content): + def make_membership_event(self, destinations, room_id, user_id, membership, content): + """ + Creates an m.room.member event, with context, without participating in the room. + + Does so by asking one of the already participating servers to create an + event with proper context. + + Note that this does not append any events to any graphs. + + Args: + destinations (str): Candidate homeservers which are probably + participating in the room. + room_id (str): The room in which the event will happen. + user_id (str): The user whose membership is being evented. + membership (str): The "membership" property of the event. Must be + one of "join" or "leave". + content (object): Any additional data to put into the content field + of the event. + Return: + A tuple of (origin (str), event (object)) where origin is the remote + homeserver which generated the event. + """ + valid_memberships = {Membership.JOIN, Membership.LEAVE} + if membership not in valid_memberships: + raise RuntimeError( + "make_membership_event called with membership='%s', must be one of %s" % + (membership, ",".join(valid_memberships)) + ) for destination in destinations: if destination == self.server_name: continue @@ -368,13 +396,13 @@ class FederationClient(FederationBase): content["third_party_invite"] ) try: - ret = yield self.transport_layer.make_join( - destination, room_id, user_id, args + ret = yield self.transport_layer.make_membership_event( + destination, room_id, user_id, membership, args ) pdu_dict = ret["event"] - logger.debug("Got response to make_join: %s", pdu_dict) + logger.debug("Got response to make_%s: %s", membership, pdu_dict) defer.returnValue( (destination, self.event_from_pdu_json(pdu_dict)) @@ -384,8 +412,8 @@ class FederationClient(FederationBase): raise except Exception as e: logger.warn( - "Failed to make_join via %s: %s", - destination, e.message + "Failed to make_%s via %s: %s", + membership, destination, e.message ) raise RuntimeError("Failed to send to any server.") @@ -492,6 +520,33 @@ class FederationClient(FederationBase): defer.returnValue(pdu) @defer.inlineCallbacks + def send_leave(self, destinations, pdu): + for destination in destinations: + if destination == self.server_name: + continue + + try: + time_now = self._clock.time_msec() + _, content = yield self.transport_layer.send_leave( + destination=destination, + room_id=pdu.room_id, + event_id=pdu.event_id, + content=pdu.get_pdu_json(time_now), + ) + + logger.debug("Got content: %s", content) + defer.returnValue(None) + except CodeMessageException: + raise + except Exception as e: + logger.exception( + "Failed to send_leave via %s: %s", + destination, e.message + ) + + raise RuntimeError("Failed to send to any server.") + + @defer.inlineCallbacks def query_auth(self, destination, room_id, event_id, local_auth): """ Params: diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py index 7934f740e0..9e2d9ee74c 100644 --- a/synapse/federation/federation_server.py +++ b/synapse/federation/federation_server.py @@ -268,6 +268,20 @@ class FederationServer(FederationBase): })) @defer.inlineCallbacks + def on_make_leave_request(self, room_id, user_id): + pdu = yield self.handler.on_make_leave_request(room_id, user_id) + time_now = self._clock.time_msec() + defer.returnValue({"event": pdu.get_pdu_json(time_now)}) + + @defer.inlineCallbacks + def on_send_leave_request(self, origin, content): + logger.debug("on_send_leave_request: content: %s", content) + pdu = self.event_from_pdu_json(content) + logger.debug("on_send_leave_request: pdu sigs: %s", pdu.signatures) + yield self.handler.on_send_leave_request(origin, pdu) + defer.returnValue((200, {})) + + @defer.inlineCallbacks def on_event_auth(self, origin, room_id, event_id): time_now = self._clock.time_msec() auth_pdus = yield self.handler.on_event_auth(event_id) diff --git a/synapse/federation/transport/client.py b/synapse/federation/transport/client.py index ae4195e83a..a81b3c4345 100644 --- a/synapse/federation/transport/client.py +++ b/synapse/federation/transport/client.py @@ -14,6 +14,7 @@ # limitations under the License. from twisted.internet import defer +from synapse.api.constants import Membership from synapse.api.urls import FEDERATION_PREFIX as PREFIX from synapse.util.logutils import log_function @@ -160,8 +161,14 @@ class TransportLayerClient(object): @defer.inlineCallbacks @log_function - def make_join(self, destination, room_id, user_id, args={}): - path = PREFIX + "/make_join/%s/%s" % (room_id, user_id) + def make_membership_event(self, destination, room_id, user_id, membership, args={}): + valid_memberships = {Membership.JOIN, Membership.LEAVE} + if membership not in valid_memberships: + raise RuntimeError( + "make_membership_event called with membership='%s', must be one of %s" % + (membership, ",".join(valid_memberships)) + ) + path = PREFIX + "/make_%s/%s/%s" % (membership, room_id, user_id) content = yield self.client.get_json( destination=destination, @@ -187,6 +194,19 @@ class TransportLayerClient(object): @defer.inlineCallbacks @log_function + def send_leave(self, destination, room_id, event_id, content): + path = PREFIX + "/send_leave/%s/%s" % (room_id, event_id) + + response = yield self.client.put_json( + destination=destination, + path=path, + data=content, + ) + + defer.returnValue(response) + + @defer.inlineCallbacks + @log_function def send_invite(self, destination, room_id, event_id, content): path = PREFIX + "/invite/%s/%s" % (room_id, event_id) diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py index 6e394f039e..8184159210 100644 --- a/synapse/federation/transport/server.py +++ b/synapse/federation/transport/server.py @@ -296,6 +296,24 @@ class FederationMakeJoinServlet(BaseFederationServlet): defer.returnValue((200, content)) +class FederationMakeLeaveServlet(BaseFederationServlet): + PATH = "/make_leave/([^/]*)/([^/]*)" + + @defer.inlineCallbacks + def on_GET(self, origin, content, query, context, user_id): + content = yield self.handler.on_make_leave_request(context, user_id) + defer.returnValue((200, content)) + + +class FederationSendLeaveServlet(BaseFederationServlet): + PATH = "/send_leave/([^/]*)/([^/]*)" + + @defer.inlineCallbacks + def on_PUT(self, origin, content, query, room_id, txid): + content = yield self.handler.on_send_leave_request(origin, content) + defer.returnValue((200, content)) + + class FederationEventAuthServlet(BaseFederationServlet): PATH = "/event_auth/([^/]*)/([^/]*)" @@ -385,8 +403,10 @@ SERVLET_CLASSES = ( FederationBackfillServlet, FederationQueryServlet, FederationMakeJoinServlet, + FederationMakeLeaveServlet, FederationEventServlet, FederationSendJoinServlet, + FederationSendLeaveServlet, FederationInviteServlet, FederationQueryAuthServlet, FederationGetMissingEventsServlet, diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 946ff97c7d..ae9d227586 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -565,7 +565,7 @@ class FederationHandler(BaseHandler): @log_function @defer.inlineCallbacks - def do_invite_join(self, target_hosts, room_id, joinee, content, snapshot): + 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`. @@ -581,50 +581,19 @@ class FederationHandler(BaseHandler): yield self.store.clean_room_for_join(room_id) - origin, pdu = yield self.replication_layer.make_join( + origin, event = yield self._make_and_verify_event( target_hosts, room_id, joinee, + "join", content ) - logger.debug("Got response to make_join: %s", pdu) - - event = pdu - - # We should assert some things. - # FIXME: Do this in a nicer way - assert(event.type == EventTypes.Member) - assert(event.user_id == joinee) - assert(event.state_key == joinee) - assert(event.room_id == room_id) - - event.internal_metadata.outlier = False - self.room_queues[room_id] = [] - - builder = self.event_builder_factory.new( - unfreeze(event.get_pdu_json()) - ) - handled_events = set() try: - builder.event_id = self.event_builder_factory.create_event_id() - builder.origin = self.hs.hostname - builder.content = content - - if not hasattr(event, "signatures"): - builder.signatures = {} - - add_hashes_and_signatures( - builder, - self.hs.hostname, - self.hs.config.signing_key[0], - ) - - new_event = builder.build() - + new_event = self._sign_event(event) # Try the host we successfully got a response to /make_join/ # request first. try: @@ -632,11 +601,7 @@ class FederationHandler(BaseHandler): target_hosts.insert(0, origin) except ValueError: pass - - ret = yield self.replication_layer.send_join( - target_hosts, - new_event - ) + ret = yield self.replication_layer.send_join(target_hosts, new_event) origin = ret["origin"] state = ret["state"] @@ -700,7 +665,7 @@ class FederationHandler(BaseHandler): @log_function def on_make_join_request(self, room_id, user_id, query): """ We've received a /make_join/ request, so we create a partial - join event for the room and return that. We don *not* persist or + join 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. """ event_content = {"membership": Membership.JOIN} @@ -860,6 +825,168 @@ class FederationHandler(BaseHandler): defer.returnValue(event) @defer.inlineCallbacks + def do_remotely_reject_invite(self, target_hosts, room_id, user_id): + origin, event = yield self._make_and_verify_event( + target_hosts, + room_id, + user_id, + "leave", + {} + ) + signed_event = self._sign_event(event) + + # Try the host we successfully got a response to /make_join/ + # request first. + try: + target_hosts.remove(origin) + target_hosts.insert(0, origin) + except ValueError: + pass + + yield self.replication_layer.send_leave( + target_hosts, + signed_event + ) + defer.returnValue(None) + + @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( + target_hosts, + room_id, + user_id, + membership, + content + ) + + logger.debug("Got response to make_%s: %s", membership, pdu) + + event = pdu + + # We should assert some things. + # FIXME: Do this in a nicer way + assert(event.type == EventTypes.Member) + assert(event.user_id == user_id) + assert(event.state_key == user_id) + assert(event.room_id == room_id) + defer.returnValue((origin, event)) + + def _sign_event(self, event): + event.internal_metadata.outlier = False + + builder = self.event_builder_factory.new( + unfreeze(event.get_pdu_json()) + ) + + builder.event_id = self.event_builder_factory.create_event_id() + builder.origin = self.hs.hostname + + if not hasattr(event, "signatures"): + builder.signatures = {} + + add_hashes_and_signatures( + builder, + self.hs.hostname, + self.hs.config.signing_key[0], + ) + + return builder.build() + + @defer.inlineCallbacks + @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 + process it until the other server has signed it and sent it back. + """ + builder = self.event_builder_factory.new({ + "type": EventTypes.Member, + "content": {"membership": Membership.LEAVE}, + "room_id": room_id, + "sender": user_id, + "state_key": user_id, + }) + + event, context = yield self._create_new_client_event( + builder=builder, + ) + + self.auth.check(event, auth_events=context.current_state) + + defer.returnValue(event) + + @defer.inlineCallbacks + @log_function + def on_send_leave_request(self, origin, pdu): + """ We have received a leave event for a room. Fully process it.""" + event = pdu + + logger.debug( + "on_send_leave_request: Got event: %s, signatures: %s", + event.event_id, + event.signatures, + ) + + event.internal_metadata.outlier = False + + context, event_stream_id, max_stream_id = yield self._handle_new_event( + origin, event + ) + + logger.debug( + "on_send_leave_request: After _handle_new_event: %s, sigs: %s", + event.event_id, + 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) + + with PreserveLoggingContext(): + d = self.notifier.on_new_room_event( + event, event_stream_id, max_stream_id, extra_users=extra_users + ) + + def log_failure(f): + logger.warn( + "Failed to notify about %s: %s", + event.event_id, f.value + ) + + d.addErrback(log_failure) + + new_pdu = event + + destinations = set() + + for k, s in context.current_state.items(): + try: + if k[0] == EventTypes.Member: + if s.content["membership"] == Membership.LEAVE: + destinations.add( + UserID.from_string(s.state_key).domain + ) + except: + logger.warn( + "Failed to get destination from event %s", s.event_id + ) + + destinations.discard(origin) + + logger.debug( + "on_send_leave_request: Sending event: %s, signatures: %s", + event.event_id, + event.signatures, + ) + + self.replication_layer.send_pdu(new_pdu, destinations) + + defer.returnValue(None) + + @defer.inlineCallbacks def get_state_for_pdu(self, origin, room_id, event_id, do_auth=True): yield run_on_reactor() diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index 3f0cde56f0..60f9fa58b0 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -389,7 +389,22 @@ class RoomMemberHandler(BaseHandler): if event.membership == Membership.JOIN: yield self._do_join(event, context, do_auth=do_auth) else: - # This is not a JOIN, so we can handle it normally. + if event.membership == Membership.LEAVE: + is_host_in_room = yield self.is_host_in_room(room_id, context) + if not is_host_in_room: + # Rejecting an invite, rather than leaving a joined room + handler = self.hs.get_handlers().federation_handler + inviter = yield self.get_inviter(event) + if not inviter: + # return the same error as join_room_alias does + raise SynapseError(404, "No known servers") + yield handler.do_remotely_reject_invite( + [inviter.domain], + room_id, + event.user_id + ) + defer.returnValue({"room_id": room_id}) + return # FIXME: This isn't idempotency. if prev_state and prev_state.membership == event.membership: @@ -413,7 +428,7 @@ class RoomMemberHandler(BaseHandler): defer.returnValue({"room_id": room_id}) @defer.inlineCallbacks - def join_room_alias(self, joinee, room_alias, do_auth=True, content={}): + def join_room_alias(self, joinee, room_alias, content={}): directory_handler = self.hs.get_handlers().directory_handler mapping = yield directory_handler.get_association(room_alias) @@ -447,8 +462,6 @@ class RoomMemberHandler(BaseHandler): @defer.inlineCallbacks def _do_join(self, event, context, room_hosts=None, do_auth=True): - joinee = UserID.from_string(event.state_key) - # room_id = RoomID.from_string(event.room_id, self.hs) room_id = event.room_id # XXX: We don't do an auth check if we are doing an invite @@ -456,48 +469,18 @@ class RoomMemberHandler(BaseHandler): # that we are allowed to join when we decide whether or not we # need to do the invite/join dance. - is_host_in_room = yield self.auth.check_host_in_room( - event.room_id, - self.hs.hostname - ) - if not is_host_in_room: - # is *anyone* in the room? - room_member_keys = [ - v for (k, v) in context.current_state.keys() if ( - k == "m.room.member" - ) - ] - if len(room_member_keys) == 0: - # has the room been created so we can join it? - create_event = context.current_state.get(("m.room.create", "")) - if create_event: - is_host_in_room = True - + is_host_in_room = yield self.is_host_in_room(room_id, context) if is_host_in_room: should_do_dance = False elif room_hosts: # TODO: Shouldn't this be remote_room_host? should_do_dance = True else: - # TODO(markjh): get prev_state from snapshot - prev_state = yield self.store.get_room_member( - joinee.to_string(), room_id - ) - - if prev_state and prev_state.membership == Membership.INVITE: - inviter = UserID.from_string(prev_state.user_id) - - should_do_dance = not self.hs.is_mine(inviter) - room_hosts = [inviter.domain] - elif "third_party_invite" in event.content: - if "sender" in event.content["third_party_invite"]: - inviter = UserID.from_string( - event.content["third_party_invite"]["sender"] - ) - should_do_dance = not self.hs.is_mine(inviter) - room_hosts = [inviter.domain] - else: + inviter = yield self.get_inviter(event) + if not inviter: # return the same error as join_room_alias does raise SynapseError(404, "No known servers") + should_do_dance = not self.hs.is_mine(inviter) + room_hosts = [inviter.domain] if should_do_dance: handler = self.hs.get_handlers().federation_handler @@ -505,8 +488,7 @@ class RoomMemberHandler(BaseHandler): room_hosts, room_id, event.user_id, - event.content, # FIXME To get a non-frozen dict - context + event.content # FIXME To get a non-frozen dict ) else: logger.debug("Doing normal join") @@ -524,6 +506,44 @@ class RoomMemberHandler(BaseHandler): ) @defer.inlineCallbacks + def get_inviter(self, event): + # TODO(markjh): get prev_state from snapshot + prev_state = yield self.store.get_room_member( + event.user_id, event.room_id + ) + + if prev_state and prev_state.membership == Membership.INVITE: + defer.returnValue(UserID.from_string(prev_state.user_id)) + return + elif "third_party_invite" in event.content: + if "sender" in event.content["third_party_invite"]: + inviter = UserID.from_string( + event.content["third_party_invite"]["sender"] + ) + defer.returnValue(inviter) + defer.returnValue(None) + + @defer.inlineCallbacks + def is_host_in_room(self, room_id, context): + is_host_in_room = yield self.auth.check_host_in_room( + room_id, + self.hs.hostname + ) + if not is_host_in_room: + # is *anyone* in the room? + room_member_keys = [ + v for (k, v) in context.current_state.keys() if ( + k == "m.room.member" + ) + ] + if len(room_member_keys) == 0: + # has the room been created so we can join it? + create_event = context.current_state.get(("m.room.create", "")) + if create_event: + is_host_in_room = True + defer.returnValue(is_host_in_room) + + @defer.inlineCallbacks def get_joined_rooms_for_user(self, user): """Returns a list of roomids that the user has any of the given membership states in.""" |