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Fix a bug when a room alias is given to the admin join endpoint (#9506)

pull/9523/head
Patrick Cloke 2021-03-01 13:59:01 -05:00 committed by GitHub
parent 16ec8c3272
commit ad8589d392
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2 changed files with 75 additions and 58 deletions
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changelog.d/9506.bugfix Normal file
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@ -0,0 +1 @@
Fix a bug introduced in v1.25.0 where `/_synapse/admin/join/` would fail when given a room alias.

132
synapse/rest/admin/rooms.py
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@ -44,6 +44,48 @@ if TYPE_CHECKING:
logger = logging.getLogger(__name__)
class ResolveRoomIdMixin:
def __init__(self, hs: "HomeServer"):
self.room_member_handler = hs.get_room_member_handler()
async def resolve_room_id(
self, room_identifier: str, remote_room_hosts: Optional[List[str]] = None
) -> Tuple[str, Optional[List[str]]]:
"""
Resolve a room identifier to a room ID, if necessary.
This also performanes checks to ensure the room ID is of the proper form.
Args:
room_identifier: The room ID or alias.
remote_room_hosts: The potential remote room hosts to use.
Returns:
The resolved room ID.
Raises:
SynapseError if the room ID is of the wrong form.
"""
if RoomID.is_valid(room_identifier):
resolved_room_id = room_identifier
elif RoomAlias.is_valid(room_identifier):
room_alias = RoomAlias.from_string(room_identifier)
(
room_id,
remote_room_hosts,
) = await self.room_member_handler.lookup_room_alias(room_alias)
resolved_room_id = room_id.to_string()
else:
raise SynapseError(
400, "%s was not legal room ID or room alias" % (room_identifier,)
)
if not resolved_room_id:
raise SynapseError(
400, "Unknown room ID or room alias %s" % room_identifier
)
return resolved_room_id, remote_room_hosts
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
@ -334,14 +376,14 @@ class RoomStateRestServlet(RestServlet):
return 200, ret
class JoinRoomAliasServlet(RestServlet):
class JoinRoomAliasServlet(ResolveRoomIdMixin, RestServlet):
PATTERNS = admin_patterns("/join/(?P<room_identifier>[^/]*)")
def __init__(self, hs: "HomeServer"):
super().__init__(hs)
self.hs = hs
self.auth = hs.get_auth()
self.room_member_handler = hs.get_room_member_handler()
self.admin_handler = hs.get_admin_handler()
self.state_handler = hs.get_state_handler()
@ -362,22 +404,16 @@ class JoinRoomAliasServlet(RestServlet):
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)
else:
raise SynapseError(
400, "%s was not legal room ID or room alias" % (room_identifier,)
)
# Get the room ID from the 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
room_id, remote_room_hosts = await self.resolve_room_id(
room_identifier, remote_room_hosts
)
fake_requester = create_requester(
target_user, authenticated_entity=requester.authenticated_entity
@ -412,7 +448,7 @@ class JoinRoomAliasServlet(RestServlet):
return 200, {"room_id": room_id}
class MakeRoomAdminRestServlet(RestServlet):
class MakeRoomAdminRestServlet(ResolveRoomIdMixin, RestServlet):
"""Allows a server admin to get power in a room if a local user has power in
a room. Will also invite the user if they're not in the room and it's a
private room. Can specify another user (rather than the admin user) to be
@ -427,29 +463,21 @@ class MakeRoomAdminRestServlet(RestServlet):
PATTERNS = admin_patterns("/rooms/(?P<room_identifier>[^/]*)/make_room_admin")
def __init__(self, hs: "HomeServer"):
super().__init__(hs)
self.hs = hs
self.auth = hs.get_auth()
self.room_member_handler = hs.get_room_member_handler()
self.event_creation_handler = hs.get_event_creation_handler()
self.state_handler = hs.get_state_handler()
self.is_mine_id = hs.is_mine_id
async def on_POST(self, request, room_identifier):
async def on_POST(
self, request: SynapseRequest, room_identifier: str
) -> Tuple[int, JsonDict]:
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, allow_empty_body=True)
# Resolve to a room ID, if necessary.
if RoomID.is_valid(room_identifier):
room_id = room_identifier
elif RoomAlias.is_valid(room_identifier):
room_alias = RoomAlias.from_string(room_identifier)
room_id, _ = await self.room_member_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,)
)
room_id, _ = await self.resolve_room_id(room_identifier)
# Which user to grant room admin rights to.
user_to_add = content.get("user_id", requester.user.to_string())
@ -556,7 +584,7 @@ class MakeRoomAdminRestServlet(RestServlet):
return 200, {}
class ForwardExtremitiesRestServlet(RestServlet):
class ForwardExtremitiesRestServlet(ResolveRoomIdMixin, RestServlet):
"""Allows a server admin to get or clear forward extremities.
Clearing does not require restarting the server.
@ -571,43 +599,29 @@ class ForwardExtremitiesRestServlet(RestServlet):
PATTERNS = admin_patterns("/rooms/(?P<room_identifier>[^/]*)/forward_extremities")
def __init__(self, hs: "HomeServer"):
super().__init__(hs)
self.hs = hs
self.auth = hs.get_auth()
self.room_member_handler = hs.get_room_member_handler()
self.store = hs.get_datastore()
async def resolve_room_id(self, room_identifier: str) -> str:
"""Resolve to a room ID, if necessary."""
if RoomID.is_valid(room_identifier):
resolved_room_id = room_identifier
elif RoomAlias.is_valid(room_identifier):
room_alias = RoomAlias.from_string(room_identifier)
room_id, _ = await self.room_member_handler.lookup_room_alias(room_alias)
resolved_room_id = room_id.to_string()
else:
raise SynapseError(
400, "%s was not legal room ID or room alias" % (room_identifier,)
)
if not resolved_room_id:
raise SynapseError(
400, "Unknown room ID or room alias %s" % room_identifier
)
return resolved_room_id
async def on_DELETE(self, request, room_identifier):
async def on_DELETE(
self, request: SynapseRequest, room_identifier: str
) -> Tuple[int, JsonDict]:
requester = await self.auth.get_user_by_req(request)
await assert_user_is_admin(self.auth, requester.user)
room_id = await self.resolve_room_id(room_identifier)
room_id, _ = await self.resolve_room_id(room_identifier)
deleted_count = await self.store.delete_forward_extremities_for_room(room_id)
return 200, {"deleted": deleted_count}
async def on_GET(self, request, room_identifier):
async def on_GET(
self, request: SynapseRequest, room_identifier: str
) -> Tuple[int, JsonDict]:
requester = await self.auth.get_user_by_req(request)
await assert_user_is_admin(self.auth, requester.user)
room_id = await self.resolve_room_id(room_identifier)
room_id, _ = await self.resolve_room_id(room_identifier)
extremities = await self.store.get_forward_extremities_for_room(room_id)
return 200, {"count": len(extremities), "results": extremities}
@ -623,14 +637,16 @@ class RoomEventContextServlet(RestServlet):
PATTERNS = admin_patterns("/rooms/(?P<room_id>[^/]*)/context/(?P<event_id>[^/]*)$")
def __init__(self, hs):
def __init__(self, hs: "HomeServer"):
super().__init__()
self.clock = hs.get_clock()
self.room_context_handler = hs.get_room_context_handler()
self._event_serializer = hs.get_event_client_serializer()
self.auth = hs.get_auth()
async def on_GET(self, request, room_id, event_id):
async def on_GET(
self, request: SynapseRequest, room_id: str, event_id: str
) -> Tuple[int, JsonDict]:
requester = await self.auth.get_user_by_req(request, allow_guest=False)
await assert_user_is_admin(self.auth, requester.user)