famedlysdk/lib/encryption/utils/outbound_group_session.dart

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/*
* Famedly Matrix SDK
* Copyright (C) 2019, 2020 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 '../../src/database/database.dart' show DbOutboundGroupSession;
class OutboundGroupSession {
List<String> devices;
DateTime creationTime;
olm.OutboundGroupSession outboundGroupSession;
int sentMessages;
bool get isValid => outboundGroupSession != null;
final String key;
OutboundGroupSession(
{this.devices,
this.creationTime,
this.outboundGroupSession,
this.sentMessages,
this.key});
OutboundGroupSession.fromDb(DbOutboundGroupSession dbEntry, String key)
: key = key {
outboundGroupSession = olm.OutboundGroupSession();
try {
outboundGroupSession.unpickle(key, dbEntry.pickle);
devices = List<String>.from(json.decode(dbEntry.deviceIds));
creationTime = dbEntry.creationTime;
sentMessages = dbEntry.sentMessages;
} catch (e) {
dispose();
print(
'[LibOlm] Unable to unpickle outboundGroupSession: ' + e.toString());
}
}
void dispose() {
outboundGroupSession?.free();
outboundGroupSession = null;
}
}