mirror of
https://git.anonymousland.org/anonymousland/synapse-product.git
synced 2024-09-07 09:21:51 +00:00
77 lines
3.1 KiB
Python
77 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2017 New Vector Ltd
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
import ujson as json
|
|
import logging
|
|
|
|
from canonicaljson import encode_canonical_json
|
|
from twisted.internet import defer
|
|
|
|
from synapse.api.errors import SynapseError, CodeMessageException
|
|
from synapse.util.async import Linearizer
|
|
from synapse.util.retryutils import NotRetryingDestination
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class E2eRoomKeysHandler(object):
|
|
def __init__(self, hs):
|
|
self.store = hs.get_datastore()
|
|
self._upload_linearizer = async.Linearizer("upload_room_keys_lock")
|
|
|
|
@defer.inlineCallbacks
|
|
def get_room_keys(self, user_id, version, room_id, session_id):
|
|
results = yield self.store.get_e2e_room_keys(user_id, version, room_id, session_id)
|
|
defer.returnValue(results)
|
|
|
|
@defer.inlineCallbacks
|
|
def delete_room_keys(self, user_id, version, room_id, session_id):
|
|
yield self.store.delete_e2e_room_keys(user_id, version, room_id, session_id)
|
|
|
|
@defer.inlineCallbacks
|
|
def upload_room_keys(self, user_id, version, room_keys):
|
|
|
|
# TODO: Validate the JSON to make sure it has the right keys.
|
|
|
|
# XXX: perhaps we should use a finer grained lock here?
|
|
with (yield self._upload_linearizer.queue(user_id):
|
|
|
|
# go through the room_keys
|
|
for room_id in room_keys['rooms']:
|
|
for session_id in room_keys['rooms'][room_id]['sessions']:
|
|
room_key = room_keys['rooms'][room_id]['sessions'][session_id]
|
|
|
|
# get the room_key for this particular row
|
|
current_room_key = yield self.store.get_e2e_room_key(
|
|
user_id, version, room_id, session_id
|
|
)
|
|
|
|
# check whether we merge or not. spelling it out with if/elifs rather than
|
|
# lots of booleans for legibility.
|
|
replace = False
|
|
if current_room_key:
|
|
if room_key['is_verified'] and not current_room_key['is_verified']:
|
|
replace = True
|
|
elif room_key['first_message_index'] < current_room_key['first_message_index']:
|
|
replace = True
|
|
elif room_key['forwarded_count'] < room_key['forwarded_count']:
|
|
replace = True
|
|
|
|
# if so, we set the new room_key
|
|
if replace:
|
|
yield self.store.set_e2e_room_key(
|
|
user_id, version, room_id, session_id, room_key
|
|
)
|