Line data    Source code

       1              : /*
       2              :  *   Famedly Matrix SDK
       3              :  *   Copyright (C) 2020, 2021 Famedly GmbH
       4              :  *
       5              :  *   This program is free software: you can redistribute it and/or modify
       6              :  *   it under the terms of the GNU Affero General Public License as
       7              :  *   published by the Free Software Foundation, either version 3 of the
       8              :  *   License, or (at your option) any later version.
       9              :  *
      10              :  *   This program is distributed in the hope that it will be useful,
      11              :  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
      12              :  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
      13              :  *   GNU Affero General Public License for more details.
      14              :  *
      15              :  *   You should have received a copy of the GNU Affero General Public License
      16              :  *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
      17              :  */
      18              : 
      19              : import 'package:olm/olm.dart' as olm;
      20              : 
      21              : import 'package:matrix/matrix.dart';
      22              : 
      23              : class OlmSession {
      24              :   String identityKey;
      25              :   String? sessionId;
      26              :   olm.Session? session;
      27              :   DateTime? lastReceived;
      28              :   final String key;
      29           92 :   String? get pickledSession => session?.pickle(key);
      30              : 
      31            8 :   bool get isValid => session != null;
      32              : 
      33           23 :   OlmSession({
      34              :     required this.key,
      35              :     required this.identityKey,
      36              :     required this.sessionId,
      37              :     required this.session,
      38              :     required this.lastReceived,
      39              :   });
      40              : 
      41            5 :   OlmSession.fromJson(Map<String, dynamic> dbEntry, this.key)
      42            5 :       : identityKey = dbEntry['identity_key'] ?? '' {
      43           10 :     session = olm.Session();
      44              :     try {
      45           20 :       session!.unpickle(key, dbEntry['pickle']);
      46            8 :       sessionId = dbEntry['session_id'];
      47            4 :       lastReceived =
      48            8 :           DateTime.fromMillisecondsSinceEpoch(dbEntry['last_received'] ?? 0);
      49           16 :       assert(sessionId == session!.session_id());
      50              :     } catch (e, s) {
      51            2 :       Logs().e('[LibOlm] Could not unpickle olm session', e, s);
      52            1 :       dispose();
      53              :     }
      54              :   }
      55              : 
      56           21 :   void dispose() {
      57           42 :     session?.free();
      58           21 :     session = null;
      59              :   }
      60              : }