From f1087106cf637e3c108c096ff789100bcbcc461c Mon Sep 17 00:00:00 2001 From: Hubert Chathi Date: Mon, 5 Nov 2018 17:59:29 -0500 Subject: handle empty backups according to latest spec proposal (#4123) fixes #4056 --- synapse/rest/client/v2_alpha/room_keys.py | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) (limited to 'synapse/rest/client') diff --git a/synapse/rest/client/v2_alpha/room_keys.py b/synapse/rest/client/v2_alpha/room_keys.py index 45b5817d8b..ab3f1bd21a 100644 --- a/synapse/rest/client/v2_alpha/room_keys.py +++ b/synapse/rest/client/v2_alpha/room_keys.py @@ -17,7 +17,7 @@ import logging from twisted.internet import defer -from synapse.api.errors import Codes, SynapseError +from synapse.api.errors import Codes, NotFoundError, SynapseError from synapse.http.servlet import ( RestServlet, parse_json_object_from_request, @@ -208,10 +208,25 @@ class RoomKeysServlet(RestServlet): user_id, version, room_id, session_id ) + # Convert room_keys to the right format to return. if session_id: - room_keys = room_keys['rooms'][room_id]['sessions'][session_id] + # If the client requests a specific session, but that session was + # not backed up, then return an M_NOT_FOUND. + if room_keys['rooms'] == {}: + raise NotFoundError("No room_keys found") + else: + room_keys = room_keys['rooms'][room_id]['sessions'][session_id] elif room_id: - room_keys = room_keys['rooms'][room_id] + # If the client requests all sessions from a room, but no sessions + # are found, then return an empty result rather than an error, so + # that clients don't have to handle an error condition, and an + # empty result is valid. (Similarly if the client requests all + # sessions from the backup, but in that case, room_keys is already + # in the right format, so we don't need to do anything about it.) + if room_keys['rooms'] == {}: + room_keys = {'sessions': {}} + else: + room_keys = room_keys['rooms'][room_id] defer.returnValue((200, room_keys)) -- cgit 1.4.1