diff options
| -rw-r--r-- | changelog.d/11228.feature | 1 | ||||
| -rw-r--r-- | docs/admin_api/rooms.md | 16 | ||||
| -rw-r--r-- | synapse/handlers/room.py | 51 | ||||
| -rw-r--r-- | synapse/rest/admin/rooms.py | 21 | ||||
| -rw-r--r-- | synapse/storage/databases/main/room.py | 7 | ||||
| -rw-r--r-- | tests/rest/admin/test_room.py | 28 |
6 files changed, 103 insertions, 21 deletions
diff --git a/changelog.d/11228.feature b/changelog.d/11228.feature new file mode 100644 index 0000000000..33c1756b50 --- /dev/null +++ b/changelog.d/11228.feature @@ -0,0 +1 @@ +Allow the admin [Delete Room API](https://matrix-org.github.io/synapse/latest/admin_api/rooms.html#delete-room-api) to block a room without the need to join it. diff --git a/docs/admin_api/rooms.md b/docs/admin_api/rooms.md index ab6b82a082..41a4961d00 100644 --- a/docs/admin_api/rooms.md +++ b/docs/admin_api/rooms.md @@ -396,13 +396,17 @@ The new room will be created with the user specified by the `new_room_user_id` p as room administrator and will contain a message explaining what happened. Users invited to the new room will have power level `-10` by default, and thus be unable to speak. -If `block` is `True` it prevents new joins to the old room. +If `block` is `true`, users will be prevented from joining the old room. +This option can also be used to pre-emptively block a room, even if it's unknown +to this homeserver. In this case, the room will be blocked, and no further action +will be taken. If `block` is `false`, attempting to delete an unknown room is +invalid and will be rejected as a bad request. This API will remove all trace of the old room from your database after removing all local users. If `purge` is `true` (the default), all traces of the old room will be removed from your database after removing all local users. If you do not want this to happen, set `purge` to `false`. -Depending on the amount of history being purged a call to the API may take +Depending on the amount of history being purged, a call to the API may take several minutes or longer. The local server will only have the power to move local user and room aliases to @@ -464,8 +468,9 @@ The following JSON body parameters are available: `new_room_user_id` in the new room. Ideally this will clearly convey why the original room was shut down. Defaults to `Sharing illegal content on this server is not permitted and rooms in violation will be blocked.` -* `block` - Optional. If set to `true`, this room will be added to a blocking list, preventing - future attempts to join the room. Defaults to `false`. +* `block` - Optional. If set to `true`, this room will be added to a blocking list, + preventing future attempts to join the room. Rooms can be blocked + even if they're not yet known to the homeserver. Defaults to `false`. * `purge` - Optional. If set to `true`, it will remove all traces of the room from your database. Defaults to `true`. * `force_purge` - Optional, and ignored unless `purge` is `true`. If set to `true`, it @@ -483,7 +488,8 @@ The following fields are returned in the JSON response body: * `failed_to_kick_users` - An array of users (`user_id`) that that were not kicked. * `local_aliases` - An array of strings representing the local aliases that were migrated from the old room to the new. -* `new_room_id` - A string representing the room ID of the new room. +* `new_room_id` - A string representing the room ID of the new room, or `null` if + no such room was created. ## Undoing room deletions diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index 7a95e31cbe..11af30eee7 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -12,8 +12,7 @@ # See the License for the specific language governing permissions and # limitations under the License. -"""Contains functions for performing events on rooms.""" - +"""Contains functions for performing actions on rooms.""" import itertools import logging import math @@ -31,6 +30,8 @@ from typing import ( Tuple, ) +from typing_extensions import TypedDict + from synapse.api.constants import ( EventContentFields, EventTypes, @@ -1277,6 +1278,13 @@ class RoomEventSource(EventSource[RoomStreamToken, EventBase]): return self.store.get_room_events_max_id(room_id) +class ShutdownRoomResponse(TypedDict): + kicked_users: List[str] + failed_to_kick_users: List[str] + local_aliases: List[str] + new_room_id: Optional[str] + + class RoomShutdownHandler: DEFAULT_MESSAGE = ( @@ -1302,7 +1310,7 @@ class RoomShutdownHandler: new_room_name: Optional[str] = None, message: Optional[str] = None, block: bool = False, - ) -> dict: + ) -> ShutdownRoomResponse: """ Shuts down a room. Moves all local users and room aliases automatically to a new room if `new_room_user_id` is set. Otherwise local users only @@ -1336,8 +1344,13 @@ class RoomShutdownHandler: Defaults to `Sharing illegal content on this server is not permitted and rooms in violation will be blocked.` block: - If set to `true`, this room will be added to a blocking list, - preventing future attempts to join the room. Defaults to `false`. + If set to `True`, users will be prevented from joining the old + room. This option can also be used to pre-emptively block a room, + even if it's unknown to this homeserver. In this case, the room + will be blocked, and no further action will be taken. If `False`, + attempting to delete an unknown room is invalid. + + Defaults to `False`. Returns: a dict containing the following keys: kicked_users: An array of users (`user_id`) that were kicked. @@ -1346,7 +1359,9 @@ class RoomShutdownHandler: local_aliases: An array of strings representing the local aliases that were migrated from the old room to the new. - new_room_id: A string representing the room ID of the new room. + new_room_id: + A string representing the room ID of the new room, or None if + no such room was created. """ if not new_room_name: @@ -1357,14 +1372,28 @@ class RoomShutdownHandler: if not RoomID.is_valid(room_id): raise SynapseError(400, "%s is not a legal room ID" % (room_id,)) - if not await self.store.get_room(room_id): - raise NotFoundError("Unknown room id %s" % (room_id,)) - - # This will work even if the room is already blocked, but that is - # desirable in case the first attempt at blocking the room failed below. + # Action the block first (even if the room doesn't exist yet) if block: + # This will work even if the room is already blocked, but that is + # desirable in case the first attempt at blocking the room failed below. await self.store.block_room(room_id, requester_user_id) + if not await self.store.get_room(room_id): + if block: + # We allow you to block an unknown room. + return { + "kicked_users": [], + "failed_to_kick_users": [], + "local_aliases": [], + "new_room_id": None, + } + else: + # But if you don't want to preventatively block another room, + # this function can't do anything useful. + raise NotFoundError( + "Cannot shut down room: unknown room id %s" % (room_id,) + ) + if new_room_user_id is not None: if not self.hs.is_mine_id(new_room_user_id): raise SynapseError( diff --git a/synapse/rest/admin/rooms.py b/synapse/rest/admin/rooms.py index 05c823d9ce..a2f4edebb8 100644 --- a/synapse/rest/admin/rooms.py +++ b/synapse/rest/admin/rooms.py @@ -13,7 +13,7 @@ # limitations under the License. import logging from http import HTTPStatus -from typing import TYPE_CHECKING, List, Optional, Tuple +from typing import TYPE_CHECKING, List, Optional, Tuple, cast from urllib import parse as urlparse from synapse.api.constants import EventTypes, JoinRules, Membership @@ -239,9 +239,22 @@ class RoomRestServlet(RestServlet): # Purge room if purge: - await pagination_handler.purge_room(room_id, force=force_purge) - - return 200, ret + try: + await pagination_handler.purge_room(room_id, force=force_purge) + except NotFoundError: + if block: + # We can block unknown rooms with this endpoint, in which case + # a failed purge is expected. + pass + else: + # But otherwise, we expect this purge to have succeeded. + raise + + # Cast safety: cast away the knowledge that this is a TypedDict. + # See https://github.com/python/mypy/issues/4976#issuecomment-579883622 + # for some discussion on why this is necessary. Either way, + # `ret` is an opaque dictionary blob as far as the rest of the app cares. + return 200, cast(JsonDict, ret) class RoomMembersRestServlet(RestServlet): diff --git a/synapse/storage/databases/main/room.py b/synapse/storage/databases/main/room.py index cefc77fa0f..17b398bb69 100644 --- a/synapse/storage/databases/main/room.py +++ b/synapse/storage/databases/main/room.py @@ -1751,7 +1751,12 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore, SearchStore): ) async def block_room(self, room_id: str, user_id: str) -> None: - """Marks the room as blocked. Can be called multiple times. + """Marks the room as blocked. + + Can be called multiple times (though we'll only track the last user to + block this room). + + Can be called on a room unknown to this homeserver. Args: room_id: Room to block diff --git a/tests/rest/admin/test_room.py b/tests/rest/admin/test_room.py index 46116644ce..11ec54c82e 100644 --- a/tests/rest/admin/test_room.py +++ b/tests/rest/admin/test_room.py @@ -14,9 +14,12 @@ import json import urllib.parse +from http import HTTPStatus from typing import List, Optional from unittest.mock import Mock +from parameterized import parameterized + import synapse.rest.admin from synapse.api.constants import EventTypes, Membership from synapse.api.errors import Codes @@ -281,6 +284,31 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase): self._is_blocked(self.room_id, expect=True) self._has_no_members(self.room_id) + @parameterized.expand([(True,), (False,)]) + def test_block_unknown_room(self, purge: bool) -> None: + """ + We can block an unknown room. In this case, the `purge` argument + should be ignored. + """ + room_id = "!unknown:test" + + # The room isn't already in the blocked rooms table + self._is_blocked(room_id, expect=False) + + # Request the room be blocked. + channel = self.make_request( + "DELETE", + f"/_synapse/admin/v1/rooms/{room_id}", + {"block": True, "purge": purge}, + access_token=self.admin_user_tok, + ) + + # The room is now blocked. + self.assertEqual( + HTTPStatus.OK, int(channel.result["code"]), msg=channel.result["body"] + ) + self._is_blocked(room_id) + def test_shutdown_room_consent(self): """Test that we can shutdown rooms with local users who have not yet accepted the privacy policy. This used to fail when we tried to |