| // 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. |
| |
| /// @assertion String findProxyFromEnvironment( |
| /// Uri url, { |
| /// Map<String, String> environment |
| /// }) |
| /// Function for resolving the proxy server to be used for a HTTP connection from |
| /// the proxy configuration specified through environment variables. |
| /// |
| /// The following environment variables are taken into account: |
| /// |
| /// http_proxy |
| /// https_proxy |
| /// no_proxy |
| /// HTTP_PROXY |
| /// HTTPS_PROXY |
| /// NO_PROXY |
| /// http_proxy and HTTP_PROXY specify the proxy server to use for http:// urls. |
| /// Use the format hostname:port. If no port is used a default of 1080 will be |
| /// used. If both are set the lower case one takes precedence. |
| /// |
| /// https_proxy and HTTPS_PROXY specify the proxy server to use for https:// |
| /// urls. Use the format hostname:port. If no port is used a default of 1080 will |
| /// be used. If both are set the lower case one takes precedence. |
| /// |
| /// no_proxy and NO_PROXY specify a comma separated list of postfixes of |
| /// hostnames for which not to use the proxy server. E.g. the value |
| /// "localhost,127.0.0.1" will make requests to both "localhost" and "127.0.0.1" |
| /// not use a proxy. If both are set the lower case one takes precedence. |
| /// |
| /// To activate this way of resolving proxies assign this function to the |
| /// findProxy property on the HttpClient. |
| /// |
| /// HttpClient client = new HttpClient(); |
| /// client.findProxy = HttpClient.findProxyFromEnvironment; |
| /// If you don't want to use the system environment you can use a different one |
| /// by wrapping the function. |
| /// |
| /// HttpClient client = new HttpClient(); |
| /// client.findProxy = (url) { |
| /// return HttpClient.findProxyFromEnvironment( |
| /// url, {"http_proxy": ..., "no_proxy": ...}); |
| /// } |
| /// If a proxy requires authentication it is possible to configure the username |
| /// and password as well. Use the format username:password@hostname:port to |
| /// include the username and password. Alternatively the API addProxyCredentials |
| /// can be used to set credentials for proxies which require authentication. |
| /// |
| /// @description Checks rewritten value of findProxyFromEnvironment |
| /// @author sgrekhov@unipro.ru |
| |
| import "dart:io"; |
| import "dart:convert"; |
| import "../../../Utils/expect.dart"; |
| |
| var localhost = InternetAddress.loopbackIPv4.address; |
| |
| test() async { |
| bool findProxyCalled = false; |
| String hello = "Hello world!"; |
| HttpServer server = await HttpServer.bind(localhost, 0); |
| server.listen((HttpRequest request) { |
| Expect.fail("No request expected"); |
| }); |
| |
| HttpServer proxyServer = await HttpServer.bind(localhost, 0); |
| proxyServer.listen((HttpRequest request) { |
| Expect.isTrue(findProxyCalled); |
| request.response.close(); |
| proxyServer.close(); |
| server.close(); |
| asyncEnd(); |
| }); |
| |
| HttpClient client = new HttpClient(); |
| client.findProxy = (Uri url) { |
| findProxyCalled = true; |
| return HttpClient.findProxyFromEnvironment(url, |
| environment: {"http_proxy": localhost + ":${proxyServer.port}"}); |
| }; |
| |
| client.get(localhost, server.port, "") |
| .then((HttpClientRequest request) => request.close()) |
| .then((HttpClientResponse response) { |
| response.cast<List<int>>().transform(utf8.decoder).listen((content) { |
| Expect.equals(hello, content); |
| }); |
| }); |
| } |
| |
| main() { |
| asyncStart(); |
| test(); |
| } |