diff --git a/changelog.d/4746.feature b/changelog.d/4746.feature new file mode 100644 index 0000000000..97c253eccf --- /dev/null +++ b/changelog.d/4746.feature @@ -0,0 +1 @@ +Prevent showing rooms to other servers that were set to not federate. \ No newline at end of file diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py index a2396ab466..5ba94be2ec 100644 --- a/synapse/federation/transport/server.py +++ b/synapse/federation/transport/server.py @@ -736,7 +736,8 @@ class PublicRoomList(BaseFederationServlet): data = yield self.handler.get_local_public_room_list( limit, since_token, - network_tuple=network_tuple + network_tuple=network_tuple, + from_federation=True, ) defer.returnValue((200, data)) diff --git a/synapse/groups/groups_server.py b/synapse/groups/groups_server.py index 633c865ed8..a7eaead56b 100644 --- a/synapse/groups/groups_server.py +++ b/synapse/groups/groups_server.py @@ -113,8 +113,7 @@ class GroupsServerHandler(object): room_id = room_entry["room_id"] joined_users = yield self.store.get_users_in_room(room_id) entry = yield self.room_list_handler.generate_room_entry( - room_id, len(joined_users), - with_alias=False, allow_private=True, + room_id, len(joined_users), with_alias=False, allow_private=True, ) entry = dict(entry) # so we don't change whats cached entry.pop("room_id", None) @@ -544,8 +543,7 @@ class GroupsServerHandler(object): joined_users = yield self.store.get_users_in_room(room_id) entry = yield self.room_list_handler.generate_room_entry( - room_id, len(joined_users), - with_alias=False, allow_private=True, + room_id, len(joined_users), with_alias=False, allow_private=True, ) if not entry: diff --git a/synapse/handlers/room_list.py b/synapse/handlers/room_list.py index 13e212d669..afa508d729 100644 --- a/synapse/handlers/room_list.py +++ b/synapse/handlers/room_list.py @@ -50,16 +50,17 @@ class RoomListHandler(BaseHandler): def get_local_public_room_list(self, limit=None, since_token=None, search_filter=None, - network_tuple=EMPTY_THIRD_PARTY_ID,): + network_tuple=EMPTY_THIRD_PARTY_ID, + from_federation=False): """Generate a local public room list. There are multiple different lists: the main one plus one per third party network. A client can ask for a specific list or to return all. Args: - limit (int) - since_token (str) - search_filter (dict) + limit (int|None) + since_token (str|None) + search_filter (dict|None) network_tuple (ThirdPartyInstanceID): Which public list to use. This can be (None, None) to indicate the main list, or a particular appservice and network id to use an appservice specific one. @@ -87,14 +88,30 @@ class RoomListHandler(BaseHandler): return self.response_cache.wrap( key, self._get_public_room_list, - limit, since_token, network_tuple=network_tuple, + limit, since_token, + network_tuple=network_tuple, from_federation=from_federation, ) @defer.inlineCallbacks def _get_public_room_list(self, limit=None, since_token=None, search_filter=None, network_tuple=EMPTY_THIRD_PARTY_ID, + from_federation=False, timeout=None,): + """Generate a public room list. + Args: + limit (int|None): Maximum amount of rooms to return. + since_token (str|None) + search_filter (dict|None): Dictionary to filter rooms by. + network_tuple (ThirdPartyInstanceID): Which public list to use. + This can be (None, None) to indicate the main list, or a particular + appservice and network id to use an appservice specific one. + Setting to None returns all public rooms across all lists. + from_federation (bool): Whether this request originated from a + federating server or a client. Used for room filtering. + timeout (int|None): Amount of seconds to wait for a response before + timing out. + """ if since_token and since_token != "END": since_token = RoomListNextBatch.from_token(since_token) else: @@ -217,7 +234,8 @@ class RoomListHandler(BaseHandler): yield concurrently_execute( lambda r: self._append_room_entry_to_chunk( r, rooms_to_num_joined[r], - chunk, limit, search_filter + chunk, limit, search_filter, + from_federation=from_federation, ), batch, 5, ) @@ -288,23 +306,51 @@ class RoomListHandler(BaseHandler): @defer.inlineCallbacks def _append_room_entry_to_chunk(self, room_id, num_joined_users, chunk, limit, - search_filter): + search_filter, from_federation=False): """Generate the entry for a room in the public room list and append it to the `chunk` if it matches the search filter + + Args: + room_id (str): The ID of the room. + num_joined_users (int): The number of joined users in the room. + chunk (list) + limit (int|None): Maximum amount of rooms to display. Function will + return if length of chunk is greater than limit + 1. + search_filter (dict|None) + from_federation (bool): Whether this request originated from a + federating server or a client. Used for room filtering. """ if limit and len(chunk) > limit + 1: # We've already got enough, so lets just drop it. return result = yield self.generate_room_entry(room_id, num_joined_users) + if not result: + return - if result and _matches_room_entry(result, search_filter): + if from_federation and not result.get("m.federate", True): + # This is a room that other servers cannot join. Do not show them + # this room. + return + + if _matches_room_entry(result, search_filter): chunk.append(result) @cachedInlineCallbacks(num_args=1, cache_context=True) def generate_room_entry(self, room_id, num_joined_users, cache_context, with_alias=True, allow_private=False): """Returns the entry for a room + + Args: + room_id (str): The room's ID. + num_joined_users (int): Number of users in the room. + cache_context: Information for cached responses. + with_alias (bool): Whether to return the room's aliases in the result. + allow_private (bool): Whether invite-only rooms should be shown. + + Returns: + Deferred[dict|None]: Returns a room entry as a dictionary, or None if this + room was determined not to be shown publicly. """ result = { "room_id": room_id, @@ -318,6 +364,7 @@ class RoomListHandler(BaseHandler): event_map = yield self.store.get_events([ event_id for key, event_id in iteritems(current_state_ids) if key[0] in ( + EventTypes.Create, EventTypes.JoinRules, EventTypes.Name, EventTypes.Topic, @@ -334,12 +381,17 @@ class RoomListHandler(BaseHandler): } # Double check that this is actually a public room. + join_rules_event = current_state.get((EventTypes.JoinRules, "")) if join_rules_event: join_rule = join_rules_event.content.get("join_rule", None) if not allow_private and join_rule and join_rule != JoinRules.PUBLIC: defer.returnValue(None) + # Return whether this room is open to federation users or not + create_event = current_state.get((EventTypes.Create, "")) + result["m.federate"] = create_event.content.get("m.federate", True) + if with_alias: aliases = yield self.store.get_aliases_for_room( room_id, on_invalidate=cache_context.invalidate