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

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fixes #4056
This commit is contained in:
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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22
synapse/handlers/e2e_room_keys.py
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@ -19,7 +19,7 @@ from six import iteritems
from twisted.internet import defer
from synapse.api.errors import RoomKeysVersionError, StoreError, SynapseError
from synapse.api.errors import NotFoundError, RoomKeysVersionError, StoreError
from synapse.util.async_helpers import Linearizer
logger = logging.getLogger(__name__)
@ -55,6 +55,8 @@ class E2eRoomKeysHandler(object):
room_id(string): room ID to get keys for, for None to get keys for all rooms
session_id(string): session ID to get keys for, for None to get keys for all
sessions
Raises:
NotFoundError: if the backup version does not exist
Returns:
A deferred list of dicts giving the session_data and message metadata for
these room keys.
@ -63,13 +65,19 @@ class E2eRoomKeysHandler(object):
# we deliberately take the lock to get keys so that changing the version
# works atomically
with (yield self._upload_linearizer.queue(user_id)):
# make sure the backup version exists
try:
yield self.store.get_e2e_room_keys_version_info(user_id, version)
except StoreError as e:
if e.code == 404:
raise NotFoundError("Unknown backup version")
else:
raise
results = yield self.store.get_e2e_room_keys(
user_id, version, room_id, session_id
)
if results['rooms'] == {}:
raise SynapseError(404, "No room_keys found")
defer.returnValue(results)
@defer.inlineCallbacks
@ -120,7 +128,7 @@ class E2eRoomKeysHandler(object):
}
Raises:
SynapseError: with code 404 if there are no versions defined
NotFoundError: if there are no versions defined
RoomKeysVersionError: if the uploaded version is not the current version
"""
@ -134,7 +142,7 @@ class E2eRoomKeysHandler(object):
version_info = yield self.store.get_e2e_room_keys_version_info(user_id)
except StoreError as e:
if e.code == 404:
raise SynapseError(404, "Version '%s' not found" % (version,))
raise NotFoundError("Version '%s' not found" % (version,))
else:
raise
@ -148,7 +156,7 @@ class E2eRoomKeysHandler(object):
raise RoomKeysVersionError(current_version=version_info['version'])
except StoreError as e:
if e.code == 404:
raise SynapseError(404, "Version '%s' not found" % (version,))
raise NotFoundError("Version '%s' not found" % (version,))
else:
raise