Use Pydantic to validate PUT /directory/list/appservice/NETWORK/ROOM_ID

Author: David Robertson

synapse/rest/client/directory.py

@@ -170,12 +170,14 @@ def __init__(self, hs: "HomeServer"):
         self.directory_handler = hs.get_directory_handler()
         self.auth = hs.get_auth()
 
+    class PutBody(RequestBodyModel):
+        visibility: Literal["public", "private"] = "public"
+
     async def on_PUT(
         self, request: SynapseRequest, network_id: str, room_id: str
     ) -> Tuple[int, JsonDict]:
-        content = parse_json_object_from_request(request)
-        visibility = content.get("visibility", "public")
-        return await self._edit(request, network_id, room_id, visibility)
+        content = parse_and_validate_json_object_from_request(request, self.PutBody)
+        return await self._edit(request, network_id, room_id, content.visibility)
 
     async def on_DELETE(
         self, request: SynapseRequest, network_id: str, room_id: str