71 lines
2.6 KiB
Dart
71 lines
2.6 KiB
Dart
/*
|
|
* Famedly Matrix SDK
|
|
* Copyright (C) 2019, 2020, 2021 Famedly GmbH
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
import 'dart:convert';
|
|
|
|
import 'package:olm/olm.dart' as olm;
|
|
|
|
import 'package:matrix/matrix.dart';
|
|
|
|
class OutboundGroupSession {
|
|
/// The devices is a map from user id to device id to if the device is blocked.
|
|
/// This way we can easily know if a new user is added, leaves, a new devices is added, and,
|
|
/// very importantly, if we block a device. These are all important for determining if/when
|
|
/// an outbound session needs to be rotated.
|
|
Map<String, Map<String, bool>> devices = {};
|
|
// Default to a date, that would get this session rotated in any case to make handling easier
|
|
DateTime creationTime = DateTime.fromMillisecondsSinceEpoch(0);
|
|
olm.OutboundGroupSession? outboundGroupSession;
|
|
int? get sentMessages => outboundGroupSession?.message_index();
|
|
bool get isValid => outboundGroupSession != null;
|
|
final String key;
|
|
|
|
OutboundGroupSession(
|
|
{required this.devices,
|
|
required this.creationTime,
|
|
required this.outboundGroupSession,
|
|
required this.key});
|
|
|
|
OutboundGroupSession.fromJson(Map<String, dynamic> dbEntry, this.key) {
|
|
try {
|
|
for (final entry in json.decode(dbEntry['device_ids']).entries) {
|
|
devices[entry.key] = Map<String, bool>.from(entry.value);
|
|
}
|
|
} catch (e) {
|
|
// devices is bad (old data), so just not use this session
|
|
Logs().i(
|
|
'[OutboundGroupSession] Session in database is old, not using it. $e');
|
|
return;
|
|
}
|
|
outboundGroupSession = olm.OutboundGroupSession();
|
|
try {
|
|
outboundGroupSession!.unpickle(key, dbEntry['pickle']);
|
|
creationTime =
|
|
DateTime.fromMillisecondsSinceEpoch(dbEntry['creation_time']);
|
|
} catch (e, s) {
|
|
dispose();
|
|
Logs().e('[LibOlm] Unable to unpickle outboundGroupSession', e, s);
|
|
}
|
|
}
|
|
|
|
void dispose() {
|
|
outboundGroupSession?.free();
|
|
outboundGroupSession = null;
|
|
}
|
|
}
|