synapse-product/synapse/rest/admin/rooms.py
2020-08-05 21:38:57 +01:00

338 lines
12 KiB
Python

# -*- 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 http import HTTPStatus
from typing import List, Optional
from synapse.api.constants import EventTypes, JoinRules
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.databases.main.room import RoomSortOrder
from synapse.types import RoomAlias, RoomID, UserID, create_requester
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>[^/]+)")
def __init__(self, hs):
self.hs = hs
self.auth = hs.get_auth()
self.room_shutdown_handler = hs.get_room_shutdown_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"])
ret = await self.room_shutdown_handler.shutdown_room(
room_id=room_id,
new_room_user_id=content["new_room_user_id"],
new_room_name=content.get("room_name"),
message=content.get("message"),
requester_user_id=requester.user.to_string(),
block=True,
)
return (200, ret)
class DeleteRoomRestServlet(RestServlet):
"""Delete a room from server. It is a combination and improvement of
shut down and purge room.
Shuts down a room by removing all local users from the room.
Blocking all future invites and joins to the room is optional.
If desired 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.
It will remove all trace of a room from the database.
"""
PATTERNS = admin_patterns("/rooms/(?P<room_id>[^/]+)/delete$")
def __init__(self, hs):
self.hs = hs
self.auth = hs.get_auth()
self.room_shutdown_handler = hs.get_room_shutdown_handler()
self.pagination_handler = hs.get_pagination_handler()
async def on_POST(self, request, room_id):
requester = await self.auth.get_user_by_req(request)
await assert_user_is_admin(self.auth, requester.user)
content = parse_json_object_from_request(request)
block = content.get("block", False)
if not isinstance(block, bool):
raise SynapseError(
HTTPStatus.BAD_REQUEST,
"Param 'block' must be a boolean, if given",
Codes.BAD_JSON,
)
purge = content.get("purge", True)
if not isinstance(purge, bool):
raise SynapseError(
HTTPStatus.BAD_REQUEST,
"Param 'purge' must be a boolean, if given",
Codes.BAD_JSON,
)
ret = await self.room_shutdown_handler.shutdown_room(
room_id=room_id,
new_room_user_id=content.get("new_room_user_id"),
new_room_name=content.get("room_name"),
message=content.get("message"),
requester_user_id=requester.user.to_string(),
block=block,
)
# Purge room
if purge:
await self.pagination_handler.purge_room(room_id)
return (200, ret)
class ListRoomRestServlet(RestServlet):
"""
List all rooms that are known to the homeserver. Results are returned
in a dictionary containing room information. Supports pagination.
"""
PATTERNS = admin_patterns("/rooms$")
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 RoomMembersRestServlet(RestServlet):
"""
Get members list of a room.
"""
PATTERNS = admin_patterns("/rooms/(?P<room_id>[^/]+)/members")
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(room_id)
if not ret:
raise NotFoundError("Room not found")
members = await self.store.get_users_in_room(room_id)
ret = {"members": members, "total": len(members)}
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}