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handle empty backups according to latest spec proposal (#4123)

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fixes #4056
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Hubert Chathi 2018-11-05 17:59:29 -05:00 • committed by GitHub
parent efdcbbe46b
commit f1087106cf
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4 changed files with 71 additions and 52 deletions
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21
synapse/rest/client/v2_alpha/room_keys.py
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@ -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))