390 lines
12 KiB
Dart
390 lines
12 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:dio/dio.dart';
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import 'dart:convert';
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import 'dart:io';
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import 'package:http/http.dart' as http;
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import 'net/httpdns_http_client_adapter.dart';
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import 'package:TrustAPP_httpdns/TrustAPP_httpdns.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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// This widget is the root of your application.
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'HTTP Request Demo',
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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 MyHomePage(title: 'HTTP Request Demo'),
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);
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}
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}
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class MyHomePage extends StatefulWidget {
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const MyHomePage({super.key, required this.title});
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final String title;
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@override
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State<MyHomePage> createState() => _MyHomePageState();
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}
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enum NetworkLibrary {
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dio('Dio'),
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httpClient('HttpClient'),
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httpPackage('http');
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const NetworkLibrary(this.displayName);
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final String displayName;
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}
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class _MyHomePageState extends State<MyHomePage> {
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final TextEditingController _urlController = TextEditingController();
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String _responseText = 'Response will appear here...';
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bool _isLoading = false;
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late final Dio _dio;
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late final HttpClient _httpClient;
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late final http.Client _httpPackageClient;
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NetworkLibrary _selectedLibrary = NetworkLibrary.dio;
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bool _httpdnsReady = false;
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bool _httpdnsIniting = false;
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Future<void> _initHttpDnsOnce() async {
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if (_httpdnsReady || _httpdnsIniting) return;
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_httpdnsIniting = true;
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try {
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await TrustAPPHttpdns.init(
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appId: 'app1f1ndpo9', // 请替æ<C2BF>¢ä¸ºæ‚¨çš„应用 AppId
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primaryServiceHost: 'httpdns-a.example.com', // 请替æ<C2BF>¢ä¸ºä¸»æœ<C3A6>务域å<C5B8>? backupServiceHost: 'httpdns-b.example.com', // å<>¯é€‰ï¼šå¤‡æœ<C3A6>务域å<C5B8>? servicePort: 443,
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secretKey: 'your_sign_secret_here', // å<>¯é€‰ï¼šä»…验ç¾å¼€å<E282AC>¯æ—¶éœ€è¦? );
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await TrustAPPHttpdns.setHttpsRequestEnabled(true);
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await TrustAPPHttpdns.setLogEnabled(true);
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await TrustAPPHttpdns.setPersistentCacheIPEnabled(true);
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await TrustAPPHttpdns.setReuseExpiredIPEnabled(true);
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await TrustAPPHttpdns.build();
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// å…ˆbuildå†<C3A5>执行解æž<C3A6>相关动ä½?
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final preResolveHosts = 'www.TrustAPP.com';
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await TrustAPPHttpdns.setPreResolveHosts([preResolveHosts], ipType: 'both');
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debugPrint('[httpdns] pre-resolve scheduled for host=$preResolveHosts');
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_httpdnsReady = true;
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} catch (e) {
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debugPrint('[httpdns] init failed: $e');
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} finally {
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_httpdnsIniting = false;
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}
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}
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@override
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void initState() {
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super.initState();
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// 设置默认的API URL用于演示
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_urlController.text = 'https://www.TrustAPP.com';
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// 仅首次进入页é<C2B5>¢æ—¶åˆ<C3A5>始åŒ?HTTPDNS
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_initHttpDnsOnce();
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// å…ˆåˆ<C3A5>始化HTTPDNSå†<C3A5>åˆ<C3A5>始化Dio
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_dio = Dio();
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_dio.httpClientAdapter = buildHttpdnsHttpClientAdapter();
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_dio.options.headers['Connection'] = 'keep-alive';
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_httpClient = buildHttpdnsNativeHttpClient();
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_httpPackageClient = buildHttpdnsHttpPackageClient();
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}
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@override
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void dispose() {
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_urlController.dispose();
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_httpClient.close();
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_httpPackageClient.close();
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super.dispose();
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}
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Future<void> _sendHttpRequest() async {
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if (_urlController.text.isEmpty) {
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setState(() {
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_responseText = 'Error: Please enter a URL';
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});
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return;
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}
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setState(() {
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_isLoading = true;
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_responseText = 'Sending request...';
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});
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final uri = Uri.parse(_urlController.text);
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try {
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final String libraryName = _selectedLibrary.displayName;
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debugPrint('[$libraryName] Sending request to ${uri.host}:${uri.port}');
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int statusCode;
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Map<String, String> headers;
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String body;
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switch (_selectedLibrary) {
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case NetworkLibrary.dio:
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final response = await _dio.getUri(
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uri,
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options: Options(
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responseType: ResponseType.plain,
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followRedirects: true,
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validateStatus: (_) => true,
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),
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);
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statusCode = response.statusCode ?? 0;
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headers = {
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for (final e in response.headers.map.entries)
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e.key: e.value.join(','),
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};
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body = response.data is String
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? response.data as String
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: jsonEncode(response.data);
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break;
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case NetworkLibrary.httpClient:
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final request = await _httpClient.getUrl(uri);
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final response = await request.close();
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statusCode = response.statusCode;
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headers = {};
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response.headers.forEach((name, values) {
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headers[name] = values.join(',');
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});
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body = await response.transform(utf8.decoder).join();
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break;
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case NetworkLibrary.httpPackage:
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final response = await _httpPackageClient.get(uri);
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statusCode = response.statusCode;
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headers = response.headers;
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body = response.body;
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break;
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}
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setState(() {
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_isLoading = false;
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final StringBuffer responseInfo = StringBuffer();
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responseInfo.writeln('=== REQUEST ($libraryName) ===');
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responseInfo.writeln('uri: ${uri.toString()}');
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responseInfo.writeln();
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responseInfo.writeln('=== STATUS ===');
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responseInfo.writeln('statusCode: $statusCode');
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responseInfo.writeln();
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responseInfo.writeln('=== HEADERS ===');
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headers.forEach((key, value) {
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responseInfo.writeln('$key: $value');
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});
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responseInfo.writeln();
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responseInfo.writeln('=== BODY ===');
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if (statusCode >= 200 && statusCode < 300) {
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try {
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final jsonData = json.decode(body);
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const encoder = JsonEncoder.withIndent(' ');
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responseInfo.write(encoder.convert(jsonData));
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} catch (_) {
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responseInfo.write(body);
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}
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} else {
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responseInfo.write(body);
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}
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_responseText = responseInfo.toString();
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});
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} catch (e) {
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setState(() {
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_isLoading = false;
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_responseText = 'Network Error: $e';
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});
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}
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}
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// 使用 HTTPDNS 解æž<C3A6>当å‰<C3A5> URL çš?host 并显示结æž?
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Future<void> _testHttpDnsResolve() async {
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final text = _urlController.text.trim();
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if (text.isEmpty) {
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setState(() {
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_responseText = 'Error: Please enter a URL';
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});
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return;
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}
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final Uri uri;
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try {
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uri = Uri.parse(text);
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} catch (_) {
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setState(() {
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_responseText = 'Error: Invalid URL';
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});
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return;
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}
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setState(() {
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_isLoading = true;
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_responseText = 'Resolving with HTTPDNS...';
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});
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try {
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// ç¡®ä¿<C3A4>å<EFBFBD>ªåˆ<C3A5>始化一æ¬?
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await _initHttpDnsOnce();
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final res = await TrustAPPHttpdns.resolveHostSyncNonBlocking(
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uri.host,
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ipType: 'both',
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);
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setState(() {
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_isLoading = false;
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final buf = StringBuffer();
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buf.writeln('=== HTTPDNS RESOLVE ===');
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buf.writeln('host: ${uri.host}');
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final ipv4 = (res['ipv4'] as List?)?.cast<String>() ?? const <String>[];
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final ipv6 = (res['ipv6'] as List?)?.cast<String>() ?? const <String>[];
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if (ipv4.isNotEmpty) buf.writeln('IPv4 list: ${ipv4.join(', ')}');
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if (ipv6.isNotEmpty) buf.writeln('IPv6 list: ${ipv6.join(', ')}');
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_responseText = buf.toString();
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});
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} catch (e) {
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setState(() {
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_isLoading = false;
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_responseText = 'HTTPDNS Error: $e';
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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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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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title: Text(widget.title),
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),
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body: Padding(
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padding: const EdgeInsets.all(16.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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// URL输入�
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TextField(
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controller: _urlController,
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decoration: const InputDecoration(
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labelText: 'Enter URL',
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hintText: 'https://www.TrustAPP.com',
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border: OutlineInputBorder(),
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prefixIcon: Icon(Icons.link),
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),
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keyboardType: TextInputType.url,
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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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flex: 3,
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child: ElevatedButton.icon(
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onPressed: _isLoading ? null : _sendHttpRequest,
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icon: _isLoading
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? const SizedBox(
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width: 20,
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height: 20,
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child: CircularProgressIndicator(strokeWidth: 2),
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)
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: const Icon(Icons.send),
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label: Text(_isLoading ? 'Sending...' : 'Send Request'),
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style: ElevatedButton.styleFrom(
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padding: const EdgeInsets.symmetric(vertical: 12),
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),
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),
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),
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const SizedBox(width: 12),
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Expanded(
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flex: 2,
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 12),
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decoration: BoxDecoration(
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border: Border.all(color: Colors.grey),
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borderRadius: BorderRadius.circular(8),
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),
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child: DropdownButton<NetworkLibrary>(
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value: _selectedLibrary,
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isExpanded: true,
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underline: const SizedBox(),
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icon: const Icon(Icons.arrow_drop_down),
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items: NetworkLibrary.values.map((library) {
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return DropdownMenuItem<NetworkLibrary>(
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value: library,
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child: Text(library.displayName),
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);
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}).toList(),
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onChanged: _isLoading
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? null
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: (NetworkLibrary? newValue) {
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if (newValue != null) {
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setState(() {
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_selectedLibrary = newValue;
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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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// HTTPDNS 解æž<C3A6>按钮
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ElevatedButton.icon(
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onPressed: _isLoading ? null : _testHttpDnsResolve,
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icon: const Icon(Icons.dns),
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label: const Text('HTTPDNS Resolve'),
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style: ElevatedButton.styleFrom(
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padding: const EdgeInsets.symmetric(vertical: 12),
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),
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),
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const SizedBox(height: 16),
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// ä¿<C3A4>留空白分隔
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const SizedBox(height: 16),
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// å“<C3A5>应文本显示区域
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Expanded(
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child: Container(
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width: double.infinity,
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padding: const EdgeInsets.all(12),
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decoration: BoxDecoration(
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border: Border.all(color: Colors.grey),
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borderRadius: BorderRadius.circular(8),
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color: Colors.grey.shade50,
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),
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child: SingleChildScrollView(
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child: Text(
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_responseText,
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style: const TextStyle(
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fontFamily: 'monospace',
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fontSize: 12,
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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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