68 lines
2.1 KiB
Dart
68 lines
2.1 KiB
Dart
/*
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* Famedly Matrix SDK
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* Copyright (C) 2020, 2021 Famedly GmbH
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import 'dart:convert';
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import 'package:vodozemac/vodozemac.dart' as vod;
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import 'package:matrix/encryption/utils/pickle_key.dart';
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import 'package:matrix/matrix.dart';
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class OlmSession {
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String identityKey;
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String? sessionId;
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vod.Session? session;
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DateTime? lastReceived;
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final String key;
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String? get pickledSession => session?.toPickleEncrypted(key.toPickleKey());
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bool get isValid => session != null;
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OlmSession({
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required this.key,
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required this.identityKey,
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required this.sessionId,
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required this.session,
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required this.lastReceived,
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});
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OlmSession.fromJson(Map<String, dynamic> dbEntry, this.key)
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: identityKey = dbEntry['identity_key'] ?? '' {
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try {
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try {
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session = vod.Session.fromPickleEncrypted(
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pickleKey: key.toPickleKey(),
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pickle: dbEntry['pickle'],
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);
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} catch (_) {
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Logs().d('Unable to unpickle Olm session. Try LibOlm format.');
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session = vod.Session.fromOlmPickleEncrypted(
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pickleKey: utf8.encode(key),
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pickle: dbEntry['pickle'],
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);
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}
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sessionId = dbEntry['session_id'];
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lastReceived =
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DateTime.fromMillisecondsSinceEpoch(dbEntry['last_received'] ?? 0);
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assert(sessionId == session!.sessionId);
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} catch (e, s) {
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Logs().e('[Vodozemac] Could not unpickle olm session', e, s);
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}
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}
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}
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