From f9af8962f8ea6201ed3910eb248b8668f1262fef Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Tue, 1 Mar 2016 14:46:31 +0000 Subject: [PATCH] Allow alias creators to delete aliases --- synapse/handlers/directory.py | 27 ++++++++++++++----- synapse/rest/client/v1/directory.py | 3 --- synapse/storage/directory.py | 15 ++++++++++- .../storage/schema/delta/30/alias_creator.sql | 16 +++++++++++ 4 files changed, 51 insertions(+), 10 deletions(-) create mode 100644 synapse/storage/schema/delta/30/alias_creator.sql diff --git a/synapse/handlers/directory.py b/synapse/handlers/directory.py index e0a778e7ff..cce6f76f0e 100644 --- a/synapse/handlers/directory.py +++ b/synapse/handlers/directory.py @@ -17,9 +17,9 @@ from twisted.internet import defer from ._base import BaseHandler -from synapse.api.errors import SynapseError, Codes, CodeMessageException +from synapse.api.errors import SynapseError, Codes, CodeMessageException, AuthError from synapse.api.constants import EventTypes -from synapse.types import RoomAlias +from synapse.types import RoomAlias, UserID import logging import string @@ -38,7 +38,7 @@ class DirectoryHandler(BaseHandler): ) @defer.inlineCallbacks - def _create_association(self, room_alias, room_id, servers=None): + def _create_association(self, room_alias, room_id, servers=None, creator=None): # general association creation for both human users and app services for wchar in string.whitespace: @@ -60,7 +60,8 @@ class DirectoryHandler(BaseHandler): yield self.store.create_room_alias_association( room_alias, room_id, - servers + servers, + creator=creator, ) @defer.inlineCallbacks @@ -77,7 +78,7 @@ class DirectoryHandler(BaseHandler): 400, "This alias is reserved by an application service.", errcode=Codes.EXCLUSIVE ) - yield self._create_association(room_alias, room_id, servers) + yield self._create_association(room_alias, room_id, servers, creator=user_id) @defer.inlineCallbacks def create_appservice_association(self, service, room_alias, room_id, @@ -95,7 +96,11 @@ class DirectoryHandler(BaseHandler): def delete_association(self, user_id, room_alias): # association deletion for human users - # TODO Check if server admin + can_delete = yield self._user_can_delete_alias(room_alias, user_id) + if not can_delete: + raise AuthError( + 403, "You don't have permission to delete the alias.", + ) can_delete = yield self.can_modify_alias( room_alias, @@ -257,3 +262,13 @@ class DirectoryHandler(BaseHandler): return # either no interested services, or no service with an exclusive lock defer.returnValue(True) + + @defer.inlineCallbacks + def _user_can_delete_alias(self, alias, user_id): + creator = yield self.store.get_room_alias_creator(alias.to_string()) + + if creator and creator == user_id: + defer.returnValue(True) + + is_admin = yield self.auth.is_server_admin(UserID.from_string(user_id)) + defer.returnValue(is_admin) diff --git a/synapse/rest/client/v1/directory.py b/synapse/rest/client/v1/directory.py index 74ec1e50e0..55c22000fd 100644 --- a/synapse/rest/client/v1/directory.py +++ b/synapse/rest/client/v1/directory.py @@ -118,9 +118,6 @@ class ClientDirectoryServer(ClientV1RestServlet): requester = yield self.auth.get_user_by_req(request) user = requester.user - is_admin = yield self.auth.is_server_admin(user) - if not is_admin: - raise AuthError(403, "You need to be a server admin") room_alias = RoomAlias.from_string(room_alias) diff --git a/synapse/storage/directory.py b/synapse/storage/directory.py index 1556619d5e..012a0b414a 100644 --- a/synapse/storage/directory.py +++ b/synapse/storage/directory.py @@ -70,13 +70,14 @@ class DirectoryStore(SQLBaseStore): ) @defer.inlineCallbacks - def create_room_alias_association(self, room_alias, room_id, servers): + def create_room_alias_association(self, room_alias, room_id, servers, creator=None): """ Creates an associatin between a room alias and room_id/servers Args: room_alias (RoomAlias) room_id (str) servers (list) + creator (str): Optional user_id of creator. Returns: Deferred @@ -87,6 +88,7 @@ class DirectoryStore(SQLBaseStore): { "room_alias": room_alias.to_string(), "room_id": room_id, + "creator": creator, }, desc="create_room_alias_association", ) @@ -107,6 +109,17 @@ class DirectoryStore(SQLBaseStore): ) self.get_aliases_for_room.invalidate((room_id,)) + def get_room_alias_creator(self, room_alias): + return self._simple_select_one_onecol( + table="room_aliases", + keyvalues={ + "room_alias": room_alias, + }, + retcol="creator", + desc="get_room_alias_creator", + allow_none=True + ) + @defer.inlineCallbacks def delete_room_alias(self, room_alias): room_id = yield self.runInteraction( diff --git a/synapse/storage/schema/delta/30/alias_creator.sql b/synapse/storage/schema/delta/30/alias_creator.sql new file mode 100644 index 0000000000..c9d0dde638 --- /dev/null +++ b/synapse/storage/schema/delta/30/alias_creator.sql @@ -0,0 +1,16 @@ +/* Copyright 2016 OpenMarket 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. + */ + +ALTER TABLE room_aliases ADD COLUMN creator TEXT;