yubioath-flutter/lib/android/devices.dart
2022-10-04 12:12:54 +02:00

76 lines
2.2 KiB
Dart

/*
* Copyright (C) 2022 Yubico.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import 'dart:async';
import 'dart:convert';
import 'package:flutter/services.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:logging/logging.dart';
import '../app/logging.dart';
import '../app/models.dart';
import '../core/models.dart';
import '../management/models.dart';
final _log = Logger('android.devices');
final androidYubikeyProvider =
StateNotifierProvider<_YubikeyProvider, AsyncValue<YubiKeyData>>((ref) {
return _YubikeyProvider();
});
class _YubikeyProvider extends StateNotifier<AsyncValue<YubiKeyData>> {
final _events = const EventChannel('android.devices.deviceInfo');
late StreamSubscription sub;
_YubikeyProvider() : super(const AsyncValue.loading()) {
sub = _events.receiveBroadcastStream().listen((event) {
_setDevice(jsonDecode(event));
});
}
@override
void dispose() {
sub.cancel();
super.dispose();
}
Future<void> _setDevice(Map<String, dynamic>? json) async {
if (json == null) {
_log.debug('Yubikey was detached.');
state = const AsyncValue.loading();
return;
}
state = await AsyncValue.guard(() async {
DeviceInfo deviceInfo = DeviceInfo.fromJson(json);
String name = json['name'];
bool isNfc = json['is_nfc'];
int? usbPid = json['usb_pid'];
DeviceNode deviceNode = isNfc
? DeviceNode.nfcReader(DevicePath([]), name)
: DeviceNode.usbYubiKey(
DevicePath([]),
name,
usbPid != null ? UsbPid.fromValue(usbPid) : UsbPid.yk4OtpFidoCcid,
deviceInfo);
return YubiKeyData(deviceNode, name, deviceInfo);
});
}
}