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nyne
194
lib/network/app_dio.dart
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194
lib/network/app_dio.dart
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@@ -0,0 +1,194 @@
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import 'dart:convert';
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import 'dart:io';
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import 'package:dio/dio.dart';
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import 'package:dio/io.dart';
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import 'package:flutter/services.dart';
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import 'package:venera/foundation/appdata.dart';
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import 'package:venera/foundation/log.dart';
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import 'package:venera/utils/ext.dart';
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import '../foundation/app.dart';
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class MyLogInterceptor implements Interceptor {
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@override
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void onError(DioException err, ErrorInterceptorHandler handler) {
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Log.error("Network",
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"${err.requestOptions.method} ${err.requestOptions.path}\n$err\n${err.response?.data.toString()}");
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switch (err.type) {
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case DioExceptionType.badResponse:
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var statusCode = err.response?.statusCode;
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if (statusCode != null) {
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err = err.copyWith(
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message: "Invalid Status Code: $statusCode. "
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"${_getStatusCodeInfo(statusCode)}");
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}
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case DioExceptionType.connectionTimeout:
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err = err.copyWith(message: "Connection Timeout");
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case DioExceptionType.receiveTimeout:
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err = err.copyWith(
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message: "Receive Timeout: "
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"This indicates that the server is too busy to respond");
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case DioExceptionType.unknown:
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if (err.toString().contains("Connection terminated during handshake")) {
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err = err.copyWith(
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message: "Connection terminated during handshake: "
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"This may be caused by the firewall blocking the connection "
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"or your requests are too frequent.");
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} else if (err.toString().contains("Connection reset by peer")) {
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err = err.copyWith(
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message: "Connection reset by peer: "
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"The error is unrelated to app, please check your network.");
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}
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default:
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{}
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}
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handler.next(err);
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}
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static const errorMessages = <int, String>{
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400: "The Request is invalid.",
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401: "The Request is unauthorized.",
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403: "No permission to access the resource. Check your account or network.",
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404: "Not found.",
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429: "Too many requests. Please try again later.",
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};
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String _getStatusCodeInfo(int? statusCode) {
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if (statusCode != null && statusCode >= 500) {
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return "This is server-side error, please try again later. "
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"Do not report this issue.";
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} else {
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return errorMessages[statusCode] ?? "";
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}
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}
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@override
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void onResponse(
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Response<dynamic> response, ResponseInterceptorHandler handler) {
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var headers = response.headers.map.map((key, value) => MapEntry(
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key.toLowerCase(), value.length == 1 ? value.first : value.toString()));
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headers.remove("cookie");
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String content;
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if (response.data is List<int>) {
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try {
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content = utf8.decode(response.data, allowMalformed: false);
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} catch (e) {
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content = "<Bytes>\nlength:${response.data.length}";
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}
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} else {
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content = response.data.toString();
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}
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Log.addLog(
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(response.statusCode != null && response.statusCode! < 400)
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? LogLevel.info
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: LogLevel.error,
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"Network",
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"Response ${response.realUri.toString()} ${response.statusCode}\n"
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"headers:\n$headers\n$content");
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handler.next(response);
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}
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@override
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void onRequest(RequestOptions options, RequestInterceptorHandler handler) {
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options.connectTimeout = const Duration(seconds: 15);
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options.receiveTimeout = const Duration(seconds: 15);
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options.sendTimeout = const Duration(seconds: 15);
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handler.next(options);
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}
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}
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class AppDio with DioMixin {
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String? _proxy = proxy;
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AppDio(BaseOptions options) {
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this.options = options;
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interceptors.add(MyLogInterceptor());
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httpClientAdapter = IOHttpClientAdapter(createHttpClient: createHttpClient);
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}
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static HttpClient createHttpClient() {
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final client = HttpClient();
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client.connectionTimeout = const Duration(seconds: 5);
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client.findProxy = (uri) => proxy ?? "DIRECT";
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client.idleTimeout = const Duration(seconds: 100);
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client.badCertificateCallback = (X509Certificate cert, String host, int port) {
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if (host.contains("cdn")) return true;
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final ipv4RegExp = RegExp(
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r'^((25[0-5]|2[0-4]\d|[0-1]?\d?\d)(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3})$');
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if (ipv4RegExp.hasMatch(host)) {
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return true;
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}
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return false;
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};
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return client;
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}
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static String? proxy;
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static Future<String?> getProxy() async {
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if (appdata.settings['proxy'].removeAllBlank == "direct") return null;
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if (appdata.settings['proxy'] != "system") return appdata.settings['proxy'];
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String res;
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if (!App.isLinux) {
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const channel = MethodChannel("venera/method_channel");
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try {
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res = await channel.invokeMethod("getProxy");
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} catch (e) {
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return null;
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}
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} else {
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res = "No Proxy";
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}
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if (res == "No Proxy") return null;
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if (res.contains(";")) {
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var proxies = res.split(";");
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for (String proxy in proxies) {
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proxy = proxy.removeAllBlank;
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if (proxy.startsWith('https=')) {
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return proxy.substring(6);
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}
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}
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}
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final RegExp regex = RegExp(
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r'^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}:\d+$',
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caseSensitive: false,
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multiLine: false,
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);
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if (!regex.hasMatch(res)) {
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return null;
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}
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return res;
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}
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@override
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Future<Response<T>> request<T> (
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String path, {
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Object? data,
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Map<String, dynamic>? queryParameters,
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CancelToken? cancelToken,
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Options? options,
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ProgressCallback? onSendProgress,
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ProgressCallback? onReceiveProgress,
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}) async {
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proxy = await getProxy();
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if(_proxy != proxy) {
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_proxy = proxy;
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(httpClientAdapter as IOHttpClientAdapter).close();
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httpClientAdapter = IOHttpClientAdapter(createHttpClient: createHttpClient);
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}
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return super.request(
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path,
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data: data,
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queryParameters: queryParameters,
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cancelToken: cancelToken,
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options: options,
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onSendProgress: onSendProgress,
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onReceiveProgress: onReceiveProgress,
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);
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}
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}
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