flutter_app_security 1.0.0

A comprehensive Flutter security module providing multiple layers of protection against common mobile app attacks including root/jailbreak detection, emulator detection, tampering detection, SSL pinni [...]

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:flutter_app_security/flutter_app_security.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();

  // Initialize security with production config
  await AppSecurity.instance.initialize(
    SecurityConfig.production(
      onThreatDetected: (result) {
        debugPrint('Security threat detected: ${result.detectedThreats}');
      },
    ),
  );

  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter App Security Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue),
        useMaterial3: true,
      ),
      home: const SecurityDemoPage(),
    );
  }
}

class SecurityDemoPage extends StatefulWidget {
  const SecurityDemoPage({super.key});

  @override
  State<SecurityDemoPage> createState() => _SecurityDemoPageState();
}

class _SecurityDemoPageState extends State<SecurityDemoPage> {
  SecurityCheckResult? _result;
  bool _isChecking = false;
  bool _screenProtectionEnabled = false;
  Map<String, dynamic>? _securityInfo;

  @override
  void initState() {
    super.initState();
    _runSecurityCheck();
  }

  Future<void> _runSecurityCheck() async {
    setState(() => _isChecking = true);

    final result = await AppSecurity.instance.runSecurityChecks();
    final info = await AppSecurity.instance.getSecurityInfo();

    setState(() {
      _result = result;
      _securityInfo = info;
      _isChecking = false;
    });
  }

  Future<void> _toggleScreenProtection() async {
    if (_screenProtectionEnabled) {
      await AppSecurity.instance.disableScreenSecurity();
    } else {
      await AppSecurity.instance.enableScreenSecurity();
    }

    setState(() {
      _screenProtectionEnabled = !_screenProtectionEnabled;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Security Demo'),
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
      ),
      body: SingleChildScrollView(
        padding: const EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            // Security Status Card
            Card(
              child: Padding(
                padding: const EdgeInsets.all(16),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Row(
                      children: [
                        Icon(
                          _result?.isSecure ?? true
                              ? Icons.security
                              : Icons.warning,
                          color: _result?.isSecure ?? true
                              ? Colors.green
                              : Colors.red,
                          size: 32,
                        ),
                        const SizedBox(width: 12),
                        Text(
                          _result?.isSecure ?? true
                              ? 'Device Secure'
                              : 'Threats Detected',
                          style: Theme.of(context).textTheme.headlineSmall,
                        ),
                      ],
                    ),
                    const SizedBox(height: 16),
                    if (_isChecking)
                      const Center(child: CircularProgressIndicator())
                    else if (_result != null) ...[
                      if (_result!.detectedThreats.isEmpty)
                        const Text(
                          'No security threats detected.',
                          style: TextStyle(color: Colors.green),
                        )
                      else
                        ...(_result!.detectedThreats.map((threat) => Padding(
                              padding: const EdgeInsets.symmetric(vertical: 4),
                              child: Row(
                                children: [
                                  const Icon(Icons.error,
                                      color: Colors.red, size: 20),
                                  const SizedBox(width: 8),
                                  Expanded(
                                    child: Text(
                                      SecurityCheckResult.getThreatDescription(
                                          threat),
                                    ),
                                  ),
                                ],
                              ),
                            ))),
                    ],
                  ],
                ),
              ),
            ),
            const SizedBox(height: 16),

            // Actions Card
            Card(
              child: Padding(
                padding: const EdgeInsets.all(16),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Text(
                      'Actions',
                      style: Theme.of(context).textTheme.titleMedium,
                    ),
                    const SizedBox(height: 16),
                    ElevatedButton.icon(
                      onPressed: _isChecking ? null : _runSecurityCheck,
                      icon: const Icon(Icons.refresh),
                      label: const Text('Run Security Check'),
                    ),
                    const SizedBox(height: 8),
                    ElevatedButton.icon(
                      onPressed: _toggleScreenProtection,
                      icon: Icon(_screenProtectionEnabled
                          ? Icons.visibility_off
                          : Icons.visibility),
                      label: Text(_screenProtectionEnabled
                          ? 'Disable Screen Protection'
                          : 'Enable Screen Protection'),
                    ),
                  ],
                ),
              ),
            ),
            const SizedBox(height: 16),

            // Device Info Card
            if (_securityInfo != null)
              Card(
                child: Padding(
                  padding: const EdgeInsets.all(16),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text(
                        'Device Info',
                        style: Theme.of(context).textTheme.titleMedium,
                      ),
                      const SizedBox(height: 12),
                      if (_securityInfo!['device'] != null) ...[
                        _infoRow('Platform',
                            _securityInfo!['device']['platform'] ?? 'Unknown'),
                        _infoRow('Model',
                            _securityInfo!['device']['model'] ?? 'Unknown'),
                        _infoRow(
                            'Physical Device',
                            (_securityInfo!['device']['isPhysicalDevice'] ??
                                        false)
                                    .toString()),
                      ],
                    ],
                  ),
                ),
              ),
            const SizedBox(height: 16),

            // Configuration Card
            Card(
              child: Padding(
                padding: const EdgeInsets.all(16),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Text(
                      'Active Configuration',
                      style: Theme.of(context).textTheme.titleMedium,
                    ),
                    const SizedBox(height: 12),
                    if (_securityInfo?['config'] != null) ...[
                      _configRow('Root/Jailbreak Check',
                          _securityInfo!['config']['checkRootJailbreak']),
                      _configRow('Emulator Check',
                          _securityInfo!['config']['checkEmulator']),
                      _configRow('Debug Mode Check',
                          _securityInfo!['config']['checkDebugMode']),
                      _configRow('Tampering Check',
                          _securityInfo!['config']['checkTampering']),
                      _configRow('Screenshot Prevention',
                          _securityInfo!['config']['preventScreenshot']),
                    ],
                  ],
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }

  Widget _infoRow(String label, String value) {
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 4),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          Text(label, style: const TextStyle(color: Colors.grey)),
          Text(value, style: const TextStyle(fontWeight: FontWeight.w500)),
        ],
      ),
    );
  }

  Widget _configRow(String label, bool? value) {
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 4),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          Text(label),
          Icon(
            value == true ? Icons.check_circle : Icons.cancel,
            color: value == true ? Colors.green : Colors.grey,
            size: 20,
          ),
        ],
      ),
    );
  }
}