2017-12-05 01:29:25 +00:00
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# -*- coding: utf-8 -*-
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# Copyright 2017 New Vector Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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2017-12-05 17:54:48 +00:00
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2017-12-05 01:29:25 +00:00
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from twisted.internet import defer
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from ._base import SQLBaseStore
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class EndToEndRoomKeyStore(SQLBaseStore):
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@defer.inlineCallbacks
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def get_e2e_room_key(self, user_id, version, room_id, session_id):
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row = yield self._simple_select_one(
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table="e2e_room_keys",
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keyvalues={
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"user_id": user_id,
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"version": version,
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"room_id": room_id,
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"session_id": session_id,
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},
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retcols=(
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"first_message_index",
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"forwarded_count",
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"is_verified",
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"session_data",
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),
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desc="get_e2e_room_key",
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)
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2017-12-05 21:44:25 +00:00
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defer.returnValue(row)
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2017-12-05 01:29:25 +00:00
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def set_e2e_room_key(self, user_id, version, room_id, session_id, room_key):
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2017-12-18 01:52:46 +00:00
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yield self._simple_upsert(
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table="e2e_room_keys",
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keyvalues={
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"user_id": user_id,
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"room_id": room_id,
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"session_id": session_id,
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},
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values={
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"version": version,
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"first_message_index": room_key['first_message_index'],
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"forwarded_count": room_key['forwarded_count'],
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"is_verified": room_key['is_verified'],
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"session_data": room_key['session_data'],
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},
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lock=False,
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2017-12-05 01:29:25 +00:00
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)
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2017-12-05 17:54:48 +00:00
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# XXX: this isn't currently used and isn't tested anywhere
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# it could be used in future for bulk-uploading new versions of room_keys
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# for a user or something though.
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2017-12-05 01:29:25 +00:00
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def set_e2e_room_keys(self, user_id, version, room_keys):
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def _set_e2e_room_keys_txn(txn):
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2017-12-05 21:44:25 +00:00
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values = []
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for room_id in room_keys['rooms']:
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for session_id in room_keys['rooms'][room_id]['sessions']:
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session = room_keys['rooms'][room_id]['sessions'][session_id]
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values.append(
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{
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"user_id": user_id,
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"room_id": room_id,
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"session_id": session_id,
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"version": version,
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"first_message_index": session['first_message_index'],
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"forwarded_count": session['forwarded_count'],
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"is_verified": session['is_verified'],
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"session_data": session['session_data'],
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}
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)
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2017-12-05 01:29:25 +00:00
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self._simple_insert_many_txn(
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txn,
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table="e2e_room_keys",
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2017-12-05 21:44:25 +00:00
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values=values
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2017-12-05 01:29:25 +00:00
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)
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return True
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return self.runInteraction(
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"set_e2e_room_keys", _set_e2e_room_keys_txn
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)
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@defer.inlineCallbacks
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2017-12-18 01:52:46 +00:00
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def get_e2e_room_keys(
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self, user_id, version, room_id=room_id, session_id=session_id
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):
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2017-12-05 01:29:25 +00:00
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2017-12-05 21:44:25 +00:00
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keyvalues = {
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2017-12-05 01:29:25 +00:00
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"user_id": user_id,
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"version": version,
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}
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2017-12-05 21:44:25 +00:00
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if room_id:
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keyvalues['room_id'] = room_id
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2017-12-18 01:52:46 +00:00
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if session_id:
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keyvalues['session_id'] = session_id
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2017-12-05 01:29:25 +00:00
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rows = yield self._simple_select_list(
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table="e2e_room_keys",
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keyvalues=keyvalues,
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retcols=(
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2017-12-05 21:44:25 +00:00
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"user_id",
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"room_id",
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"session_id",
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2017-12-05 01:29:25 +00:00
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"first_message_index",
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"forwarded_count",
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"is_verified",
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"session_data",
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),
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desc="get_e2e_room_keys",
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)
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2017-12-18 01:52:46 +00:00
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sessions = {}
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2017-12-05 21:44:25 +00:00
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for row in rows:
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2017-12-18 01:52:46 +00:00
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room_entry = sessions['rooms'].setdefault(row['room_id'], {"sessions": {}})
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room_entry['sessions'][row['session_id']] = {
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2017-12-05 21:44:25 +00:00
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"first_message_index": row["first_message_index"],
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"forwarded_count": row["forwarded_count"],
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"is_verified": row["is_verified"],
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"session_data": row["session_data"],
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}
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defer.returnValue(sessions)
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2017-12-05 17:54:48 +00:00
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@defer.inlineCallbacks
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2017-12-18 01:52:46 +00:00
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def delete_e2e_room_keys(
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self, user_id, version, room_id=room_id, session_id=session_id
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):
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2017-12-05 17:54:48 +00:00
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2017-12-05 21:44:25 +00:00
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keyvalues = {
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2017-12-05 17:54:48 +00:00
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"user_id": user_id,
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"version": version,
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}
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2017-12-05 21:44:25 +00:00
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if room_id:
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keyvalues['room_id'] = room_id
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2017-12-18 01:52:46 +00:00
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if session_id:
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keyvalues['session_id'] = session_id
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2017-12-05 17:54:48 +00:00
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yield self._simple_delete(
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table="e2e_room_keys",
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keyvalues=keyvalues,
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desc="delete_e2e_room_keys",
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)
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2017-12-06 01:02:57 +00:00
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@defer.inlineCallbacks
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2017-12-06 09:02:49 +00:00
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def get_e2e_room_key_version_info(self, user_id, version):
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2017-12-06 01:02:57 +00:00
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row = yield self._simple_select_one(
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table="e2e_room_key_versions",
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keyvalues={
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"user_id": user_id,
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"version": version,
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},
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retcols=(
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"user_id",
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"version",
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"algorithm",
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"auth_data",
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),
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desc="get_e2e_room_key_version_info",
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)
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defer.returnValue(row)
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2017-12-06 09:02:49 +00:00
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def create_e2e_room_key_version(self, user_id, info):
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"""Atomically creates a new version of this user's e2e_room_keys store
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with the given version info.
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"""
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2017-12-06 01:02:57 +00:00
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def _create_e2e_room_key_version_txn(txn):
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2017-12-06 09:02:49 +00:00
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txn.execute(
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"SELECT MAX(version) FROM e2e_room_key_versions WHERE user_id=?",
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(user_id,)
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)
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current_version = txn.fetchone()[0]
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if current_version is None:
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current_version = 0
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new_version = current_version + 1
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2017-12-06 01:02:57 +00:00
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self._simple_insert_txn(
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txn,
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table="e2e_room_key_versions",
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values={
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"user_id": user_id,
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2017-12-06 09:02:49 +00:00
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"version": new_version,
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"algorithm": info["algorithm"],
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"auth_data": info["auth_data"],
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},
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)
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2017-12-06 09:02:49 +00:00
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return new_version
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2017-12-06 01:02:57 +00:00
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return self.runInteraction(
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"create_e2e_room_key_version_txn", _create_e2e_room_key_version_txn
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)
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@defer.inlineCallbacks
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def delete_e2e_room_key_version(self, user_id, version):
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keyvalues = {
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"user_id": user_id,
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"version": version,
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}
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yield self._simple_delete(
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table="e2e_room_key_versions",
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keyvalues=keyvalues,
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desc="delete_e2e_room_key_version",
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)
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