tajniak81andClaude Opus 4.8
afc6952eda
Add API Server (Go/PocketBase), Web App (Go BFF + Vue), Fly App (Flutter/DJI MSDK), Adobe Plugin, and Docker/Docker AIO deployment configs. Design assets and build artifacts are gitignored. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
59 lines
2.2 KiB
Dart
59 lines
2.2 KiB
Dart
import 'package:local_auth/local_auth.dart';
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/// Thin wrapper over [LocalAuthentication] for the login screen. Exposes what
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/// the device can do (fingerprint vs. face) and a single [authenticate] call.
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class BiometricAuth {
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final LocalAuthentication _auth = LocalAuthentication();
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bool _supported = false;
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bool _canCheck = false;
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List<BiometricType> _types = const <BiometricType>[];
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/// Whether any biometric login can be offered (device supports it and the
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/// user has at least one biometric enrolled).
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bool get available => _supported && _canCheck;
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/// The device advertises a face enrolment. On some Androids the platform only
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/// reports weak/strong instead of the specific modality — see [showFace].
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bool get hasFace => _types.contains(BiometricType.face);
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bool get _hasFingerprint =>
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_types.contains(BiometricType.fingerprint) ||
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_types.contains(BiometricType.strong) ||
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_types.contains(BiometricType.weak);
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/// Show the face button when face is reported, or when the device supports
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/// biometrics but reports no specific modality (BiometricPrompt still lets the
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/// user use whatever strong biometric — often face — is enrolled).
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bool get showFace => available && (hasFace || _types.isEmpty);
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/// Show the fingerprint button when fingerprint is reported, or as the generic
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/// fallback when no specific modality is advertised.
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bool get showFingerprint => available && (_hasFingerprint || _types.isEmpty);
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/// Refreshes the capability flags. Safe to call repeatedly.
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Future<void> refresh() async {
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try {
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_supported = await _auth.isDeviceSupported();
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_canCheck = await _auth.canCheckBiometrics;
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_types = _supported ? await _auth.getAvailableBiometrics() : const <BiometricType>[];
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} catch (_) {
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_supported = false;
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_canCheck = false;
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_types = const <BiometricType>[];
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}
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}
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/// Prompts the OS biometric sheet. Returns true only on a verified match.
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Future<bool> authenticate({required String reason}) {
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return _auth.authenticate(
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localizedReason: reason,
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options: const AuthenticationOptions(
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biometricOnly: true,
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stickyAuth: true,
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useErrorDialogs: true,
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),
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);
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}
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}
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