matrix-dart-sdk/lib/matrix_api_lite/model/matrix_keys.dart

142 lines
4.4 KiB
Dart

/* MIT License
*
* Copyright (C) 2019, 2020, 2021 Famedly GmbH
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import 'package:matrix_api_lite/matrix_api_lite.dart';
abstract class MatrixSignableKey {
String userId;
String? get identifier;
Map<String, String> keys;
Map<String, Map<String, String>>? signatures;
Map<String, Object?>? unsigned;
MatrixSignableKey(this.userId, this.keys, this.signatures, {this.unsigned});
// This object is used for signing so we need the raw json too
Map<String, Object?>? _json;
MatrixSignableKey.fromJson(Map<String, Object?> json)
: _json = json,
userId = json['user_id'] as String,
keys = Map<String, String>.from(json['keys'] as Map<String, Object?>),
// we need to manually copy to ensure that our map is Map<String, Map<String, String>>
signatures = (() {
final orig = json.tryGetMap<String, Object?>('signatures');
final res = <String, Map<String, String>>{};
for (final entry
in (orig?.entries ?? <MapEntry<String, Object?>>[])) {
final deviceSigs = entry.value;
if (deviceSigs is Map<String, Object?>) {
for (final nestedEntry in deviceSigs.entries) {
final nestedValue = nestedEntry.value;
if (nestedValue is String) {
(res[entry.key] ??= <String, String>{})[nestedEntry.key] =
nestedValue;
}
}
}
}
return res;
}()),
unsigned = json.tryGetMap<String, Object?>('unsigned')?.copy();
Map<String, Object?> toJson() {
final data = _json ?? <String, Object?>{};
data['user_id'] = userId;
data['keys'] = keys;
if (signatures != null) {
data['signatures'] = signatures;
}
if (unsigned != null) {
data['unsigned'] = unsigned;
}
return data;
}
}
class MatrixCrossSigningKey extends MatrixSignableKey {
List<String> usage;
String? get publicKey => identifier;
MatrixCrossSigningKey(
String userId,
this.usage,
Map<String, String> keys,
Map<String, Map<String, String>> signatures, {
Map<String, Object?>? unsigned,
}) : super(userId, keys, signatures, unsigned: unsigned);
@override
String? get identifier => keys.values.first;
@override
MatrixCrossSigningKey.fromJson(Map<String, Object?> json)
: usage = json.tryGetList<String>('usage') ?? [],
super.fromJson(json);
@override
Map<String, Object?> toJson() {
final data = super.toJson();
data['usage'] = usage;
return data;
}
}
class MatrixDeviceKeys extends MatrixSignableKey {
String deviceId;
List<String> algorithms;
String? get deviceDisplayName =>
unsigned?.tryGet<String>('device_display_name');
MatrixDeviceKeys(
String userId,
this.deviceId,
this.algorithms,
Map<String, String> keys,
Map<String, Map<String, String>> signatures, {
Map<String, Object?>? unsigned,
}) : super(userId, keys, signatures, unsigned: unsigned);
@override
String? get identifier => deviceId;
@override
MatrixDeviceKeys.fromJson(Map<String, Object?> json)
: algorithms = json.tryGetList<String>('algorithms') ?? [],
deviceId = json['device_id'] as String,
super.fromJson(json);
@override
Map<String, Object?> toJson() {
final data = super.toJson();
data['device_id'] = deviceId;
data['algorithms'] = algorithms;
return data;
}
}