initial
This commit is contained in:
Fabian Freund
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import 'dart:async';
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import 'dart:convert';
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import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:flutter_tor/flutter_tor.dart';
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import 'package:socks5_proxy/socks_client.dart';
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void main() {
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runApp(const MyApp());
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}
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class MyApp extends StatelessWidget {
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const MyApp({super.key});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'Flutter Tor Example',
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theme: ThemeData(
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colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
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useMaterial3: true,
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),
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home: const TorDemoPage(),
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);
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}
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}
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class TorDemoPage extends StatefulWidget {
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const TorDemoPage({super.key});
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@override
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State<TorDemoPage> createState() => _TorDemoPageState();
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}
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class _TorDemoPageState extends State<TorDemoPage> {
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final _tor = FlutterTor();
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final _logs = <TorLogMessage>[];
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TransportType _selectedTransport = TransportType.none;
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int? _socksPort;
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int _bootstrapProgress = 0;
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bool _isRunning = false;
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String _entryCountries = '';
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String _exitCountries = '';
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bool _strictNodes = false;
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final _bridgeLinesController = TextEditingController();
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// IP test state
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String? _currentIp;
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bool _isTestingIp = false;
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@override
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void initState() {
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super.initState();
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// Listen to logs
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_tor.logStream.listen((log) {
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setState(() {
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_logs.add(log);
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if (_logs.length > 100) {
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_logs.removeAt(0);
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}
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});
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});
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// Listen to status changes
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_tor.statusStream.listen((status) {
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print(
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'DEBUG statusStream: isRunning=${status.isRunning}, socksPort=${status.socksPort}, bootstrap=${status.bootstrapProgress}',
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);
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setState(() {
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_isRunning = status.isRunning;
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final newPort = status.socksPort?.toInt();
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if (newPort != _socksPort) {
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print('DEBUG: Port changed from $_socksPort to $newPort');
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}
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_socksPort = newPort;
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_bootstrapProgress = status.bootstrapProgress.toInt();
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});
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});
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// Listen to bootstrap progress
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_tor.bootstrapProgressStream.listen((progress) {
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setState(() {
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_bootstrapProgress = progress;
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});
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});
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}
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Future<void> _startTor() async {
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try {
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final bridgeLines = _bridgeLinesController.text
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.split('\n')
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.where((line) => line.trim().isNotEmpty)
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.toList();
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final config = TorConfiguration(
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transport: _selectedTransport,
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bridgeLines: bridgeLines,
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entryNodeCountries: _entryCountries.isEmpty ? null : _entryCountries,
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exitNodeCountries: _exitCountries.isEmpty ? null : _exitCountries,
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strictNodes: _strictNodes,
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);
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final socksPort = await _tor.start(config);
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print('DEBUG startTor result: socksPort=${socksPort}');
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setState(() {
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_socksPort = socksPort.toInt();
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print('DEBUG: Set _socksPort to $_socksPort from start result');
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});
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('Tor started on port ${socksPort}')),
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);
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}
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('Failed to start Tor: $e'),
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backgroundColor: Colors.red,
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),
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);
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}
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}
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}
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Future<void> _stopTor() async {
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try {
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await _tor.stop();
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setState(() {
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_socksPort = null;
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_bootstrapProgress = 0;
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});
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if (mounted) {
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ScaffoldMessenger.of(
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context,
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).showSnackBar(const SnackBar(content: Text('Tor stopped')));
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}
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('Failed to stop Tor: $e'),
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backgroundColor: Colors.red,
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),
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);
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}
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}
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}
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Future<void> _requestNewIdentity() async {
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try {
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await _tor.requestNewIdentity();
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('Requested new Tor identity')),
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);
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}
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('Failed to request new identity: $e'),
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backgroundColor: Colors.red,
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),
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);
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}
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}
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}
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Future<void> _testIpAddress() async {
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if (_socksPort == null) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('Tor is not running. Start Tor first.'),
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backgroundColor: Colors.orange,
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),
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);
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}
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return;
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}
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setState(() {
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_isTestingIp = true;
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_currentIp = null;
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});
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// Debug: Show which port we're using
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print('DEBUG: _testIpAddress called');
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print('DEBUG: Current _socksPort value: $_socksPort');
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print('DEBUG: Attempting to connect to SOCKS5 proxy on port $_socksPort');
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try {
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final portToUse = _socksPort!;
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print('DEBUG: About to connect via SOCKS5 proxy at 127.0.0.1:$portToUse');
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// Create HttpClient object
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final client = HttpClient();
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// Assign connection factory
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SocksTCPClient.assignToHttpClient(client, [
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ProxySettings(InternetAddress.loopbackIPv4, portToUse),
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]);
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// Connect to ifconfig.me through the SOCKS5 proxy
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_currentIp = await client
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.getUrl(Uri.parse('https://icanhazip.com/'))
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.then((x) => x.close())
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.then((x) => utf8.decodeStream(x));
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print('DEBUG: Connected to ifconfig.me through SOCKS5 proxy');
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('Your Tor IP: ${_currentIp}'),
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backgroundColor: Colors.green,
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duration: const Duration(seconds: 5),
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),
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);
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}
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} catch (e) {
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print('DEBUG: Error: $e');
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setState(() {
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_currentIp = 'Error: $e';
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});
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('Failed to fetch IP: $e'),
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backgroundColor: Colors.red,
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duration: const Duration(seconds: 5),
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),
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);
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}
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} finally {
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setState(() {
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_isTestingIp = false;
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});
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}
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: const Text('Flutter Tor Example'),
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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),
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body: Column(
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children: [
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// Status Card
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Card(
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margin: const EdgeInsets.all(8),
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child: Padding(
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padding: const EdgeInsets.all(16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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'Status: ${_isRunning ? 'Running' : 'Stopped'}',
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style: Theme.of(context).textTheme.titleMedium,
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),
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if (_socksPort != null) Text('SOCKS Port: $_socksPort'),
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const SizedBox(height: 8),
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LinearProgressIndicator(value: _bootstrapProgress / 100),
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Text('Bootstrap: $_bootstrapProgress%'),
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],
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),
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),
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),
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// Configuration
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Expanded(
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child: SingleChildScrollView(
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padding: const EdgeInsets.all(8),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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DropdownButtonFormField<TransportType>(
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value: _selectedTransport,
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decoration: const InputDecoration(
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labelText: 'Transport Type',
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),
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items: TransportType.values.map((transport) {
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return DropdownMenuItem(
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value: transport,
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child: Text(transport.name),
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);
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}).toList(),
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onChanged: (value) {
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setState(() {
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_selectedTransport = value!;
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});
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},
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),
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const SizedBox(height: 8),
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TextField(
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controller: _bridgeLinesController,
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decoration: const InputDecoration(
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labelText: 'Bridge Lines (one per line)',
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border: OutlineInputBorder(),
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),
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maxLines: 3,
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),
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const SizedBox(height: 8),
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TextField(
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decoration: const InputDecoration(
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labelText: 'Entry Countries (e.g., de,fr,nl)',
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),
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onChanged: (value) => _entryCountries = value,
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),
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TextField(
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decoration: const InputDecoration(
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labelText: 'Exit Countries (e.g., ch,is,se)',
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),
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onChanged: (value) => _exitCountries = value,
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),
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CheckboxListTile(
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title: const Text('Strict Nodes'),
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value: _strictNodes,
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onChanged: (value) {
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setState(() {
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_strictNodes = value ?? false;
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});
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},
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),
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const SizedBox(height: 16),
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Row(
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children: [
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Expanded(
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child: ElevatedButton.icon(
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onPressed: _isRunning ? null : _startTor,
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icon: const Icon(Icons.play_arrow),
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label: const Text('Start Tor'),
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),
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),
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const SizedBox(width: 8),
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Expanded(
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child: ElevatedButton.icon(
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onPressed: _isRunning ? _stopTor : null,
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icon: const Icon(Icons.stop),
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label: const Text('Stop Tor'),
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),
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),
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],
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),
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if (_isRunning) ...[
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const SizedBox(height: 8),
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ElevatedButton.icon(
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onPressed: _requestNewIdentity,
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icon: const Icon(Icons.refresh),
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label: const Text('New Identity'),
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),
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const SizedBox(height: 8),
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ElevatedButton.icon(
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onPressed: _isTestingIp ? null : _testIpAddress,
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icon: _isTestingIp
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? const SizedBox(
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width: 16,
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height: 16,
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child: CircularProgressIndicator(strokeWidth: 2),
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)
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: const Icon(Icons.public),
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label: Text(
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_isTestingIp ? 'Testing...' : 'Test IP Address',
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),
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.blue,
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foregroundColor: Colors.white,
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),
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),
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if (_currentIp != null) ...[
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const SizedBox(height: 8),
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Container(
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padding: const EdgeInsets.all(12),
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decoration: BoxDecoration(
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color: _currentIp!.startsWith('Error')
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? Colors.red.shade100
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: Colors.green.shade100,
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borderRadius: BorderRadius.circular(8),
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border: Border.all(
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color: _currentIp!.startsWith('Error')
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? Colors.red
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: Colors.green,
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),
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),
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child: Row(
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children: [
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Icon(
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_currentIp!.startsWith('Error')
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? Icons.error_outline
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: Icons.check_circle_outline,
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color: _currentIp!.startsWith('Error')
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? Colors.red
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: Colors.green,
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),
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const SizedBox(width: 8),
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Expanded(
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child: Text(
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_currentIp!.startsWith('Error')
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? _currentIp!
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: 'Your Tor IP: $_currentIp',
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style: TextStyle(
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fontWeight: FontWeight.bold,
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color: _currentIp!.startsWith('Error')
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? Colors.red.shade900
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: Colors.green.shade900,
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),
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),
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),
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],
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),
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),
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],
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],
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const SizedBox(height: 16),
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const Divider(),
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Text('Logs:', style: Theme.of(context).textTheme.titleMedium),
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const SizedBox(height: 8),
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Container(
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height: 200,
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decoration: BoxDecoration(
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border: Border.all(color: Colors.grey),
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borderRadius: BorderRadius.circular(4),
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),
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child: ListView.builder(
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itemCount: _logs.length,
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itemBuilder: (context, index) {
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final log = _logs[index];
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Color color;
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switch (log.severity) {
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case 'ERR':
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color = Colors.red;
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break;
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case 'WARN':
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color = Colors.orange;
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break;
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case 'NOTICE':
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color = Colors.blue;
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break;
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default:
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color = Colors.black;
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}
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return Padding(
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padding: const EdgeInsets.symmetric(
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horizontal: 8,
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vertical: 2,
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),
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child: Text(
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'[${log.severity}] ${log.message}',
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style: TextStyle(
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color: color,
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fontSize: 12,
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fontFamily: 'monospace',
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),
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),
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);
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},
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),
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),
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],
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),
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),
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),
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],
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),
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);
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}
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}
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