diff options
| -rw-r--r-- | synapse/handlers/federation.py | 4 | ||||
| -rw-r--r-- | synapse/handlers/room.py | 21 | ||||
| -rw-r--r-- | synapse/handlers/room_member.py | 10 | ||||
| -rw-r--r-- | synapse/rest/client/v1/admin.py | 116 | ||||
| -rw-r--r-- | synapse/storage/directory.py | 14 | ||||
| -rw-r--r-- | synapse/storage/room.py | 24 | ||||
| -rw-r--r-- | synapse/storage/schema/delta/43/blocked_rooms.sql | 21 |
7 files changed, 205 insertions, 5 deletions
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 39d2bee8da..f7ae369a1d 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -1068,6 +1068,10 @@ class FederationHandler(BaseHandler): """ event = pdu + is_blocked = yield self.store.is_room_blocked(event.room_id) + if is_blocked: + raise SynapseError(403, "This room has been blocked on this server") + event.internal_metadata.outlier = True event.internal_metadata.invite_from_remote = True diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index d2a0d6520a..5698d28088 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -61,7 +61,7 @@ class RoomCreationHandler(BaseHandler): } @defer.inlineCallbacks - def create_room(self, requester, config): + def create_room(self, requester, config, ratelimit=True): """ Creates a new room. Args: @@ -75,7 +75,8 @@ class RoomCreationHandler(BaseHandler): """ user_id = requester.user.to_string() - yield self.ratelimit(requester) + if ratelimit: + yield self.ratelimit(requester) if "room_alias_name" in config: for wchar in string.whitespace: @@ -167,6 +168,7 @@ class RoomCreationHandler(BaseHandler): initial_state=initial_state, creation_content=creation_content, room_alias=room_alias, + power_level_content_override=config.get("power_level_content_override", {}) ) if "name" in config: @@ -245,7 +247,8 @@ class RoomCreationHandler(BaseHandler): invite_list, initial_state, creation_content, - room_alias + room_alias, + power_level_content_override, ): def create(etype, content, **kwargs): e = { @@ -291,7 +294,15 @@ class RoomCreationHandler(BaseHandler): ratelimit=False, ) - if (EventTypes.PowerLevels, '') not in initial_state: + # We treat the power levels override specially as this needs to be one + # of the first events that get sent into a room. + pl_content = initial_state.pop((EventTypes.PowerLevels, ''), None) + if pl_content is not None: + yield send( + etype=EventTypes.PowerLevels, + content=pl_content, + ) + else: power_level_content = { "users": { creator_id: 100, @@ -316,6 +327,8 @@ class RoomCreationHandler(BaseHandler): for invitee in invite_list: power_level_content["users"][invitee] = 100 + power_level_content.update(power_level_content_override) + yield send( etype=EventTypes.PowerLevels, content=power_level_content, diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py index 1ca88517a2..b3f979b246 100644 --- a/synapse/handlers/room_member.py +++ b/synapse/handlers/room_member.py @@ -203,6 +203,11 @@ class RoomMemberHandler(BaseHandler): if not remote_room_hosts: remote_room_hosts = [] + if effective_membership_state not in ("leave", "ban",): + is_blocked = yield self.store.is_room_blocked(room_id) + if is_blocked: + raise SynapseError(403, "This room has been blocked on this server") + latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id) current_state_ids = yield self.state_handler.get_current_state_ids( room_id, latest_event_ids=latest_event_ids, @@ -369,6 +374,11 @@ class RoomMemberHandler(BaseHandler): # so don't really fit into the general auth process. raise AuthError(403, "Guest access not allowed") + if event.membership not in (Membership.LEAVE, Membership.BAN): + is_blocked = yield self.store.is_room_blocked(room_id) + if is_blocked: + raise SynapseError(403, "This room has been blocked on this server") + yield message_handler.handle_new_client_event( requester, event, diff --git a/synapse/rest/client/v1/admin.py b/synapse/rest/client/v1/admin.py index 29fcd72375..aaa3dffb1b 100644 --- a/synapse/rest/client/v1/admin.py +++ b/synapse/rest/client/v1/admin.py @@ -15,8 +15,9 @@ from twisted.internet import defer +from synapse.api.constants import Membership from synapse.api.errors import AuthError, SynapseError -from synapse.types import UserID +from synapse.types import UserID, create_requester from synapse.http.servlet import parse_json_object_from_request from .base import ClientV1RestServlet, client_path_patterns @@ -157,6 +158,118 @@ class DeactivateAccountRestServlet(ClientV1RestServlet): defer.returnValue((200, {})) +class ShutdownRoomRestServlet(ClientV1RestServlet): + """Shuts down a room by removing all local users from the room and blocking + all future invites and joins to the room. Any local aliases will be repointed + to a new room created by `new_room_user_id` and kicked users will be auto + joined to the new room. + """ + PATTERNS = client_path_patterns("/admin/shutdown_room/(?P<room_id>[^/]+)") + + DEFAULT_MESSAGE = ( + "Sharing illegal content on this server is not permitted and rooms in" + " violatation will be blocked." + ) + + def __init__(self, hs): + super(ShutdownRoomRestServlet, self).__init__(hs) + self.store = hs.get_datastore() + self.handlers = hs.get_handlers() + self.state = hs.get_state_handler() + + @defer.inlineCallbacks + def on_POST(self, request, room_id): + requester = yield self.auth.get_user_by_req(request) + is_admin = yield self.auth.is_server_admin(requester.user) + if not is_admin: + raise AuthError(403, "You are not a server admin") + + content = parse_json_object_from_request(request) + + new_room_user_id = content.get("new_room_user_id") + if not new_room_user_id: + raise SynapseError(400, "Please provide field `new_room_user_id`") + + room_creator_requester = create_requester(new_room_user_id) + + message = content.get("message", self.DEFAULT_MESSAGE) + room_name = content.get("room_name", "Content Violation Notification") + + info = yield self.handlers.room_creation_handler.create_room( + room_creator_requester, + config={ + "preset": "public_chat", + "name": room_name, + "power_level_content_override": { + "users_default": -10, + }, + }, + ratelimit=False, + ) + new_room_id = info["room_id"] + + msg_handler = self.handlers.message_handler + yield msg_handler.create_and_send_nonmember_event( + room_creator_requester, + { + "type": "m.room.message", + "content": {"body": message, "msgtype": "m.text"}, + "room_id": new_room_id, + "sender": new_room_user_id, + }, + ratelimit=False, + ) + + requester_user_id = requester.user.to_string() + + logger.info("Shutting down room %r", room_id) + + yield self.store.block_room(room_id, requester_user_id) + + users = yield self.state.get_current_user_in_room(room_id) + kicked_users = [] + for user_id in users: + if not self.hs.is_mine_id(user_id): + continue + + logger.info("Kicking %r from %r...", user_id, room_id) + + target_requester = create_requester(user_id) + yield self.handlers.room_member_handler.update_membership( + requester=target_requester, + target=target_requester.user, + room_id=room_id, + action=Membership.LEAVE, + content={}, + ratelimit=False + ) + + yield self.handlers.room_member_handler.forget(target_requester.user, room_id) + + yield self.handlers.room_member_handler.update_membership( + requester=target_requester, + target=target_requester.user, + room_id=new_room_id, + action=Membership.JOIN, + content={}, + ratelimit=False + ) + + kicked_users.append(user_id) + + aliases_for_room = yield self.store.get_aliases_for_room(room_id) + + yield self.store.update_aliases_for_room( + room_id, new_room_id, requester_user_id + ) + + defer.returnValue((200, { + "kicked_users": kicked_users, + "local_aliases": aliases_for_room, + "new_room_id": new_room_id, + })) + + class ResetPasswordRestServlet(ClientV1RestServlet): """Post request to allow an administrator reset password for a user. This need a user have a administrator access in Synapse. @@ -353,3 +466,4 @@ def register_servlets(hs, http_server): ResetPasswordRestServlet(hs).register(http_server) GetUsersPaginatedRestServlet(hs).register(http_server) SearchUsersRestServlet(hs).register(http_server) + ShutdownRoomRestServlet(hs).register(http_server) diff --git a/synapse/storage/directory.py b/synapse/storage/directory.py index 9caaf81f2c..79e7c540ad 100644 --- a/synapse/storage/directory.py +++ b/synapse/storage/directory.py @@ -170,3 +170,17 @@ class DirectoryStore(SQLBaseStore): "room_alias", desc="get_aliases_for_room", ) + + def update_aliases_for_room(self, old_room_id, new_room_id, creator): + def _update_aliases_for_room_txn(txn): + sql = "UPDATE room_aliases SET room_id = ?, creator = ? WHERE room_id = ?" + txn.execute(sql, (new_room_id, creator, old_room_id,)) + self._invalidate_cache_and_stream( + txn, self.get_aliases_for_room, (old_room_id,) + ) + self._invalidate_cache_and_stream( + txn, self.get_aliases_for_room, (new_room_id,) + ) + return self.runInteraction( + "_update_aliases_for_room_txn", _update_aliases_for_room_txn + ) diff --git a/synapse/storage/room.py b/synapse/storage/room.py index 5d543652bb..07366f66b6 100644 --- a/synapse/storage/room.py +++ b/synapse/storage/room.py @@ -507,3 +507,27 @@ class RoomStore(SQLBaseStore): )) else: defer.returnValue(None) + + @cached(max_entries=10000) + def is_room_blocked(self, room_id): + return self._simple_select_one_onecol( + table="blocked_rooms", + keyvalues={ + "room_id": room_id, + }, + retcol="1", + allow_none=True, + desc="is_room_blocked", + ) + + @defer.inlineCallbacks + def block_room(self, room_id, user_id): + yield self._simple_insert( + table="blocked_rooms", + values={ + "room_id": room_id, + "user_id": user_id, + }, + desc="block_room", + ) + self.is_room_blocked.invalidate((room_id,)) diff --git a/synapse/storage/schema/delta/43/blocked_rooms.sql b/synapse/storage/schema/delta/43/blocked_rooms.sql new file mode 100644 index 0000000000..0e3cd143ff --- /dev/null +++ b/synapse/storage/schema/delta/43/blocked_rooms.sql @@ -0,0 +1,21 @@ +/* Copyright 2017 Vector Creations Ltd + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +CREATE TABLE blocked_rooms ( + room_id TEXT NOT NULL, + user_id TEXT NOT NULL -- Admin who blocked the room +); + +CREATE UNIQUE INDEX blocked_rooms_idx ON blocked_rooms(room_id); |