feat(sms): автоподстановка кода из sms

lib/core/utils/sms_code_listener.dart

@@ -0,0 +1,38 @@
+import 'dart:io';
+import 'package:smart_auth/smart_auth.dart';
+
+typedef SmsCodeCallback = void Function(String code);
+
+class SmsCodeListener {
+  static const String _matcher = r'\d{6}';
+
+  final SmartAuth _smartAuth = SmartAuth.instance;
+  bool _listening = false;
+  bool _disposed = false;
+
+  bool get _supported => Platform.isAndroid;
+
+  Future<void> start(SmsCodeCallback onCode) async {
+    if (!_supported || _listening || _disposed) return;
+    _listening = true;
+
+    final result = await _smartAuth.getSmsWithUserConsentApi(matcher: _matcher);
+
+    _listening = false;
+    if (_disposed) return;
+
+    final code = result.hasData ? result.requireData.code : null;
+    if (code != null) onCode(code);
+  }
+
+  Future<void> cancel() async {
+    if (!_supported) return;
+    await _smartAuth.removeUserConsentApiListener();
+    _listening = false;
+  }
+
+  void dispose() {
+    _disposed = true;
+    cancel();
+  }
+}

lib/frontend/screens/auth/code_confirmation_screen.dart

@@ -6,6 +6,7 @@ import 'password_2fa_screen.dart';
 import 'registration_screen.dart';
 import '../../../backend/api.dart';
 import '../../../core/protocol/packet.dart';
+import '../../../core/utils/sms_code_listener.dart';
 import '../../../main.dart';
 import '../../widgets/custom_notification.dart';
 import '../../widgets/login_success_screen.dart';
@@ -30,6 +31,7 @@ class _CodeConfirmationScreenState extends State<CodeConfirmationScreen>
     with TickerProviderStateMixin {
   final TextEditingController _codeController = TextEditingController();
   final FocusNode _focusNode = FocusNode();
+  final SmsCodeListener _smsListener = SmsCodeListener();
   int _timerSeconds = 30;
   Timer? _timer;
   Timer? _errorTimer;
@@ -59,6 +61,7 @@ class _CodeConfirmationScreenState extends State<CodeConfirmationScreen>
     _epoch = api.sessionEpoch;
     _stateSub = api.stateStream.listen(_onSessionState);
     _startTimer();
+    _listenForSmsCode();
 
     _shakeController = AnimationController(
       vsync: this,
@@ -85,6 +88,7 @@ class _CodeConfirmationScreenState extends State<CodeConfirmationScreen>
     if (_routeAnimationListener != null) {
       _routeAnimation?.removeStatusListener(_routeAnimationListener!);
     }
+    _smsListener.dispose();
     _stateSub?.cancel();
     _timer?.cancel();
     _errorTimer?.cancel();
@@ -137,6 +141,7 @@ class _CodeConfirmationScreenState extends State<CodeConfirmationScreen>
         _errorMessage = null;
       });
       _startTimer();
+      _listenForSmsCode();
       showCustomNotification(
         context,
         'Соединение восстановлено — выслали новый код',
@@ -194,6 +199,23 @@ class _CodeConfirmationScreenState extends State<CodeConfirmationScreen>
     });
   }
 
+  Future<void> _listenForSmsCode() async {
+    await _smsListener.start((code) {
+      if (!mounted) return;
+      _applyAutoCode(code);
+    });
+  }
+
+  void _applyAutoCode(String code) {
+    if (_verifying || _recovering) return;
+    if (_codeController.text == code) return;
+    _codeController.text = code;
+    _codeController.selection = TextSelection.collapsed(offset: code.length);
+    if (_errorMessage != null) _errorMessage = null;
+    setState(() {});
+    if (code.length == 6) _verifyCode();
+  }
+
   void _showError(String message) {
     _errorTimer?.cancel();
     _shakeController.forward(from: 0);

pubspec.lock

@@ -1322,6 +1322,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.1.1"
+  smart_auth:
+    dependency: "direct main"
+    description:
+      name: smart_auth
+      sha256: a536423c50d71e9a311d16027346634d0deadd07dafc5b5606b46719cf6fb2b6
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.0"
   source_span:
     dependency: transitive
     description:

pubspec.yaml

@@ -80,6 +80,7 @@ dependencies:
   media_kit_libs_linux: ^1.2.1
   media_kit_libs_macos_video: ^1.1.4
   sensors_plus: ^7.1.0
+  smart_auth: ^3.2.0
 
 dev_dependencies:
   flutter_test: