| // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // @dart = 2.9 |
| |
| /// @assertion void findProxy=( |
| /// String f( |
| /// Uri url |
| /// ) |
| /// ) |
| /// Sets the function used to resolve the proxy server to be used for opening a |
| /// HTTP connection to the specified url. If this function is not set, direct |
| /// connections will always be used. |
| /// |
| /// The string returned by f must be in the format used by browser PAC (proxy |
| /// auto-config) scripts. That is either |
| /// |
| /// "DIRECT" |
| /// for using a direct connection or |
| /// |
| /// "PROXY host:port" |
| /// for using the proxy server host on port port. |
| /// |
| /// A configuration can contain several configuration elements separated by |
| /// semicolons, e.g. |
| /// |
| /// "PROXY host:port; PROXY host2:port2; DIRECT" |
| /// The static function findProxyFromEnvironment on this class can be used to |
| /// implement proxy server resolving based on environment variables. |
| /// @description Checks that if this function is not set, direct connections are |
| /// used. |
| /// @author sgrekhov@unipro.ru |
| /// @issue 42870 |
| |
| import "dart:io"; |
| import 'dart:async'; |
| import "dart:convert"; |
| import "../../../Utils/expect.dart"; |
| |
| test() async { |
| int requestCounter = 0; |
| |
| HttpServer server = await HttpServer.bind(InternetAddress.loopbackIPv4, 0); |
| server.listen((HttpRequest request) { |
| Expect.isNull(request.headers[HttpHeaders.proxyAuthorizationHeader]); |
| if (requestCounter++ == 0) { |
| request.response.statusCode = HttpStatus.unauthorized; |
| request.response.headers |
| .set(HttpHeaders.proxyAuthenticateHeader, 'Basic, realm=realm'); |
| request.response.statusCode = HttpStatus.proxyAuthenticationRequired; |
| request.response.close(); |
| } else { |
| request.response.close(); |
| server.close(); |
| asyncEnd(); |
| } |
| }); |
| HttpClient client = new HttpClient(); |
| |
| client.authenticateProxy = |
| (String host, int port, String scheme, String realm) { |
| Completer<bool> completer = new Completer<bool>(); |
| completer.complete(true); |
| return completer.future; |
| }; |
| |
| client |
| .getUrl(Uri.parse( |
| "http://${InternetAddress.loopbackIPv4.address}:${server.port}")) |
| .then((HttpClientRequest request) => request.close()) |
| .then((HttpClientResponse response) { |
| response.cast<List<int>>().transform(utf8.decoder).listen((content) {}); |
| }); |
| } |
| |
| main() { |
| asyncStart(); |
| test(); |
| } |