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             : }