diff --git a/synapse/rest/admin/rooms.py b/synapse/rest/admin/rooms.py
new file mode 100644
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+++ b/synapse/rest/admin/rooms.py
@@ -0,0 +1,364 @@
+# -*- coding: utf-8 -*-
+# Copyright 2019 The Matrix.org Foundation C.I.C.
+#
+# 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.
+import logging
+from typing import List, Optional
+
+from synapse.api.constants import EventTypes, JoinRules, Membership
+from synapse.api.errors import Codes, NotFoundError, SynapseError
+from synapse.http.servlet import (
+ RestServlet,
+ assert_params_in_dict,
+ parse_integer,
+ parse_json_object_from_request,
+ parse_string,
+)
+from synapse.rest.admin._base import (
+ admin_patterns,
+ assert_requester_is_admin,
+ assert_user_is_admin,
+ historical_admin_path_patterns,
+)
+from synapse.storage.data_stores.main.room import RoomSortOrder
+from synapse.types import RoomAlias, RoomID, UserID, create_requester
+from synapse.util.async_helpers import maybe_awaitable
+
+logger = logging.getLogger(__name__)
+
+
+class ShutdownRoomRestServlet(RestServlet):
+ """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 = historical_admin_path_patterns("/shutdown_room/(?P<room_id>[^/]+)")
+
+ DEFAULT_MESSAGE = (
+ "Sharing illegal content on this server is not permitted and rooms in"
+ " violation will be blocked."
+ )
+
+ def __init__(self, hs):
+ self.hs = hs
+ self.store = hs.get_datastore()
+ self.state = hs.get_state_handler()
+ self._room_creation_handler = hs.get_room_creation_handler()
+ self.event_creation_handler = hs.get_event_creation_handler()
+ self.room_member_handler = hs.get_room_member_handler()
+ self.auth = hs.get_auth()
+ self._replication = hs.get_replication_data_handler()
+
+ async def on_POST(self, request, room_id):
+ requester = await self.auth.get_user_by_req(request)
+ await assert_user_is_admin(self.auth, requester.user)
+
+ content = parse_json_object_from_request(request)
+ assert_params_in_dict(content, ["new_room_user_id"])
+ new_room_user_id = content["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, stream_id = await self._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"]
+
+ requester_user_id = requester.user.to_string()
+
+ logger.info(
+ "Shutting down room %r, joining to new room: %r", room_id, new_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.
+ await self.store.block_room(room_id, requester_user_id)
+
+ # We now wait for the create room to come back in via replication so
+ # that we can assume that all the joins/invites have propogated before
+ # we try and auto join below.
+ #
+ # TODO: Currently the events stream is written to from master
+ await self._replication.wait_for_stream_position(
+ self.hs.config.worker.writers.events, "events", stream_id
+ )
+
+ users = await self.state.get_current_users_in_room(room_id)
+ kicked_users = []
+ failed_to_kick_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)
+
+ try:
+ target_requester = create_requester(user_id)
+ _, stream_id = await self.room_member_handler.update_membership(
+ requester=target_requester,
+ target=target_requester.user,
+ room_id=room_id,
+ action=Membership.LEAVE,
+ content={},
+ ratelimit=False,
+ require_consent=False,
+ )
+
+ # Wait for leave to come in over replication before trying to forget.
+ await self._replication.wait_for_stream_position(
+ self.hs.config.worker.writers.events, "events", stream_id
+ )
+
+ await self.room_member_handler.forget(target_requester.user, room_id)
+
+ await self.room_member_handler.update_membership(
+ requester=target_requester,
+ target=target_requester.user,
+ room_id=new_room_id,
+ action=Membership.JOIN,
+ content={},
+ ratelimit=False,
+ require_consent=False,
+ )
+
+ kicked_users.append(user_id)
+ except Exception:
+ logger.exception(
+ "Failed to leave old room and join new room for %r", user_id
+ )
+ failed_to_kick_users.append(user_id)
+
+ await self.event_creation_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,
+ )
+
+ aliases_for_room = await maybe_awaitable(
+ self.store.get_aliases_for_room(room_id)
+ )
+
+ await self.store.update_aliases_for_room(
+ room_id, new_room_id, requester_user_id
+ )
+
+ return (
+ 200,
+ {
+ "kicked_users": kicked_users,
+ "failed_to_kick_users": failed_to_kick_users,
+ "local_aliases": aliases_for_room,
+ "new_room_id": new_room_id,
+ },
+ )
+
+
+class ListRoomRestServlet(RestServlet):
+ """
+ List all rooms that are known to the homeserver. Results are returned
+ in a dictionary containing room information. Supports pagination.
+ """
+
+ PATTERNS = admin_patterns("/rooms$")
+
+ def __init__(self, hs):
+ self.store = hs.get_datastore()
+ self.auth = hs.get_auth()
+ self.admin_handler = hs.get_handlers().admin_handler
+
+ async def on_GET(self, request):
+ requester = await self.auth.get_user_by_req(request)
+ await assert_user_is_admin(self.auth, requester.user)
+
+ # Extract query parameters
+ start = parse_integer(request, "from", default=0)
+ limit = parse_integer(request, "limit", default=100)
+ order_by = parse_string(request, "order_by", default=RoomSortOrder.NAME.value)
+ if order_by not in (
+ RoomSortOrder.ALPHABETICAL.value,
+ RoomSortOrder.SIZE.value,
+ RoomSortOrder.NAME.value,
+ RoomSortOrder.CANONICAL_ALIAS.value,
+ RoomSortOrder.JOINED_MEMBERS.value,
+ RoomSortOrder.JOINED_LOCAL_MEMBERS.value,
+ RoomSortOrder.VERSION.value,
+ RoomSortOrder.CREATOR.value,
+ RoomSortOrder.ENCRYPTION.value,
+ RoomSortOrder.FEDERATABLE.value,
+ RoomSortOrder.PUBLIC.value,
+ RoomSortOrder.JOIN_RULES.value,
+ RoomSortOrder.GUEST_ACCESS.value,
+ RoomSortOrder.HISTORY_VISIBILITY.value,
+ RoomSortOrder.STATE_EVENTS.value,
+ ):
+ raise SynapseError(
+ 400,
+ "Unknown value for order_by: %s" % (order_by,),
+ errcode=Codes.INVALID_PARAM,
+ )
+
+ search_term = parse_string(request, "search_term")
+ if search_term == "":
+ raise SynapseError(
+ 400,
+ "search_term cannot be an empty string",
+ errcode=Codes.INVALID_PARAM,
+ )
+
+ direction = parse_string(request, "dir", default="f")
+ if direction not in ("f", "b"):
+ raise SynapseError(
+ 400, "Unknown direction: %s" % (direction,), errcode=Codes.INVALID_PARAM
+ )
+
+ reverse_order = True if direction == "b" else False
+
+ # Return list of rooms according to parameters
+ rooms, total_rooms = await self.store.get_rooms_paginate(
+ start, limit, order_by, reverse_order, search_term
+ )
+ response = {
+ # next_token should be opaque, so return a value the client can parse
+ "offset": start,
+ "rooms": rooms,
+ "total_rooms": total_rooms,
+ }
+
+ # Are there more rooms to paginate through after this?
+ if (start + limit) < total_rooms:
+ # There are. Calculate where the query should start from next time
+ # to get the next part of the list
+ response["next_batch"] = start + limit
+
+ # Is it possible to paginate backwards? Check if we currently have an
+ # offset
+ if start > 0:
+ if start > limit:
+ # Going back one iteration won't take us to the start.
+ # Calculate new offset
+ response["prev_batch"] = start - limit
+ else:
+ response["prev_batch"] = 0
+
+ return 200, response
+
+
+class RoomRestServlet(RestServlet):
+ """Get room details.
+
+ TODO: Add on_POST to allow room creation without joining the room
+ """
+
+ PATTERNS = admin_patterns("/rooms/(?P<room_id>[^/]+)$")
+
+ def __init__(self, hs):
+ self.hs = hs
+ self.auth = hs.get_auth()
+ self.store = hs.get_datastore()
+
+ async def on_GET(self, request, room_id):
+ await assert_requester_is_admin(self.auth, request)
+
+ ret = await self.store.get_room_with_stats(room_id)
+ if not ret:
+ raise NotFoundError("Room not found")
+
+ return 200, ret
+
+
+class JoinRoomAliasServlet(RestServlet):
+
+ PATTERNS = admin_patterns("/join/(?P<room_identifier>[^/]*)")
+
+ def __init__(self, hs):
+ self.hs = hs
+ self.auth = hs.get_auth()
+ self.room_member_handler = hs.get_room_member_handler()
+ self.admin_handler = hs.get_handlers().admin_handler
+ self.state_handler = hs.get_state_handler()
+
+ async def on_POST(self, request, room_identifier):
+ requester = await self.auth.get_user_by_req(request)
+ await assert_user_is_admin(self.auth, requester.user)
+
+ content = parse_json_object_from_request(request)
+
+ assert_params_in_dict(content, ["user_id"])
+ target_user = UserID.from_string(content["user_id"])
+
+ if not self.hs.is_mine(target_user):
+ raise SynapseError(400, "This endpoint can only be used with local users")
+
+ if not await self.admin_handler.get_user(target_user):
+ raise NotFoundError("User not found")
+
+ if RoomID.is_valid(room_identifier):
+ room_id = room_identifier
+ try:
+ remote_room_hosts = [
+ x.decode("ascii") for x in request.args[b"server_name"]
+ ] # type: Optional[List[str]]
+ except Exception:
+ remote_room_hosts = None
+ elif RoomAlias.is_valid(room_identifier):
+ handler = self.room_member_handler
+ room_alias = RoomAlias.from_string(room_identifier)
+ room_id, remote_room_hosts = await handler.lookup_room_alias(room_alias)
+ room_id = room_id.to_string()
+ else:
+ raise SynapseError(
+ 400, "%s was not legal room ID or room alias" % (room_identifier,)
+ )
+
+ fake_requester = create_requester(target_user)
+
+ # send invite if room has "JoinRules.INVITE"
+ room_state = await self.state_handler.get_current_state(room_id)
+ join_rules_event = room_state.get((EventTypes.JoinRules, ""))
+ if join_rules_event:
+ if not (join_rules_event.content.get("join_rule") == JoinRules.PUBLIC):
+ await self.room_member_handler.update_membership(
+ requester=requester,
+ target=fake_requester.user,
+ room_id=room_id,
+ action="invite",
+ remote_room_hosts=remote_room_hosts,
+ ratelimit=False,
+ )
+
+ await self.room_member_handler.update_membership(
+ requester=fake_requester,
+ target=fake_requester.user,
+ room_id=room_id,
+ action="join",
+ remote_room_hosts=remote_room_hosts,
+ ratelimit=False,
+ )
+
+ return 200, {"room_id": room_id}
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