| // Copyright (c) 2013, 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. |
| |
| import "dart:async"; |
| import "dart:io"; |
| import "dart:uri"; |
| |
| class Server { |
| HttpServer server; |
| bool secure; |
| int proxyHops; |
| List<String> directRequestPaths; |
| int requestCount = 0; |
| |
| Server(this.proxyHops, this.directRequestPaths, this.secure); |
| |
| Future<Server> start() { |
| var x = new Completer(); |
| Future f = secure |
| ? HttpServer.bindSecure( |
| "127.0.0.1", 0, certificateName: 'localhost_cert') |
| : HttpServer.bind(); |
| return f.then((s) { |
| server = s; |
| x.complete(this); |
| server.listen((request) { |
| var response = request.response; |
| requestCount++; |
| // Check whether a proxy or direct connection is expected. |
| bool direct = directRequestPaths.reduce( |
| false, |
| (prev, path) => prev ? prev : path == request.uri.path); |
| if (!direct && proxyHops > 0) { |
| Expect.isNotNull(request.headers[HttpHeaders.VIA]); |
| Expect.equals(1, request.headers[HttpHeaders.VIA].length); |
| Expect.equals( |
| proxyHops, |
| request.headers[HttpHeaders.VIA][0].split(",").length); |
| } else { |
| Expect.isNull(request.headers[HttpHeaders.VIA]); |
| } |
| var body = new StringBuffer(); |
| request.listen( |
| (data) { |
| body.add(new String.fromCharCodes(data)); |
| }, |
| onDone: () { |
| String path = request.uri.path.substring(1); |
| String content = "$path$path$path"; |
| Expect.equals(content, body.toString()); |
| response.addString(request.uri.path); |
| response.close(); |
| }); |
| }); |
| return x.future; |
| }); |
| } |
| |
| void shutdown() { |
| server.close(); |
| } |
| |
| int get port => server.port; |
| } |
| |
| Future<Server> setupServer(int proxyHops, |
| {List<String> directRequestPaths: const <String>[], |
| secure: false}) { |
| Server server = new Server(proxyHops, directRequestPaths, secure); |
| return server.start(); |
| } |
| |
| class ProxyServer { |
| HttpServer server; |
| HttpClient client; |
| int requestCount = 0; |
| |
| ProxyServer() : client = new HttpClient(); |
| |
| Future<ProxyServer> start() { |
| var x = new Completer(); |
| HttpServer.bind().then((s) { |
| server = s; |
| x.complete(this); |
| server.listen((HttpRequest request) { |
| requestCount++; |
| // Open the connection from the proxy. |
| client.openUrl(request.method, request.uri) |
| .then((HttpClientRequest clientRequest) { |
| // Forward all headers. |
| request.headers.forEach((String name, List<String> values) { |
| values.forEach((String value) { |
| if (name != "content-length" && name != "via") { |
| clientRequest.headers.add(name, value); |
| } |
| }); |
| }); |
| // Special handling of Content-Length and Via. |
| clientRequest.contentLength = request.contentLength; |
| List<String> via = request.headers[HttpHeaders.VIA]; |
| String viaPrefix = via == null ? "" : "${via[0]}, "; |
| clientRequest.headers.add( |
| HttpHeaders.VIA, "${viaPrefix}1.1 localhost:$port"); |
| // Copy all content. |
| request.pipe(clientRequest); |
| return clientRequest.response; |
| }) |
| .then((HttpClientResponse clientResponse) { |
| clientResponse.pipe(request.response); |
| }); |
| }); |
| }); |
| return x.future; |
| } |
| |
| void shutdown() { |
| server.close(); |
| client.close(); |
| } |
| |
| int get port => server.port; |
| } |
| |
| Future<ProxyServer> setupProxyServer() { |
| ProxyServer proxyServer = new ProxyServer(); |
| return proxyServer.start(); |
| } |
| |
| testInvalidProxy() { |
| HttpClient client = new HttpClient(); |
| |
| client.findProxy = (Uri uri) => ""; |
| client.getUrl(Uri.parse("http://www.google.com/test")) |
| .catchError((error) {}, test: (e) => e is HttpException); |
| |
| client.findProxy = (Uri uri) => "XXX"; |
| client.getUrl(Uri.parse("http://www.google.com/test")) |
| .catchError((error) {}, test: (e) => e is HttpException); |
| |
| client.findProxy = (Uri uri) => "PROXY www.google.com"; |
| client.getUrl(Uri.parse("http://www.google.com/test")) |
| .catchError((error) {}, test: (e) => e is HttpException); |
| |
| client.findProxy = (Uri uri) => "PROXY www.google.com:http"; |
| client.getUrl(Uri.parse("http://www.google.com/test")) |
| .catchError((error) {}, test: (e) => e is HttpException); |
| } |
| |
| int testDirectDoneCount = 0; |
| void testDirectProxy() { |
| setupServer(0).then((server) { |
| HttpClient client = new HttpClient(); |
| List<String> proxy = |
| ["DIRECT", " DIRECT ", "DIRECT ;", " DIRECT ; ", |
| ";DIRECT", " ; DIRECT ", ";;DIRECT;;"]; |
| |
| client.findProxy = (Uri uri) { |
| int index = int.parse(uri.path.substring(1)); |
| return proxy[index]; |
| }; |
| |
| for (int i = 0; i < proxy.length; i++) { |
| client.getUrl(Uri.parse("http://127.0.0.1:${server.port}/$i")) |
| .then((HttpClientRequest clientRequest) { |
| String content = "$i$i$i"; |
| clientRequest.contentLength = content.length; |
| clientRequest.addString(content); |
| return clientRequest.close(); |
| }) |
| .then((HttpClientResponse response) { |
| response.listen((_) {}, onDone: () { |
| testDirectDoneCount++; |
| if (testDirectDoneCount == proxy.length) { |
| Expect.equals(proxy.length, server.requestCount); |
| server.shutdown(); |
| client.close(); |
| } |
| }); |
| }); |
| } |
| }); |
| } |
| |
| int testProxyDoneCount = 0; |
| void testProxy() { |
| setupProxyServer().then((proxyServer) { |
| setupServer(1, directRequestPaths: ["/4"]).then((server) { |
| setupServer(1, directRequestPaths: ["/4"], secure: true).then((secureServer) { |
| HttpClient client = new HttpClient(); |
| |
| List<String> proxy; |
| if (Platform.operatingSystem == "windows") { |
| proxy = |
| ["PROXY localhost:${proxyServer.port}", |
| "PROXY localhost:${proxyServer.port}; PROXY hede.hule.hest:8080", |
| "PROXY localhost:${proxyServer.port}", |
| "" |
| " PROXY localhost:${proxyServer.port}", |
| "DIRECT", |
| "PROXY localhost:${proxyServer.port}; DIRECT"]; |
| } else { |
| proxy = |
| ["PROXY localhost:${proxyServer.port}", |
| "PROXY localhost:${proxyServer.port}; PROXY hede.hule.hest:8080", |
| "PROXY hede.hule.hest:8080; PROXY localhost:${proxyServer.port}", |
| "PROXY hede.hule.hest:8080; PROXY hede.hule.hest:8181;" |
| " PROXY localhost:${proxyServer.port}", |
| "PROXY hede.hule.hest:8080; PROXY hede.hule.hest:8181; DIRECT", |
| "PROXY localhost:${proxyServer.port}; DIRECT"]; |
| } |
| client.findProxy = (Uri uri) { |
| // Pick the proxy configuration based on the request path. |
| int index = int.parse(uri.path.substring(1)); |
| return proxy[index]; |
| }; |
| |
| for (int i = 0; i < proxy.length; i++) { |
| test(bool secure) { |
| String url = secure |
| ? "https://localhost:${secureServer.port}/$i" |
| : "http://127.0.0.1:${server.port}/$i"; |
| |
| client.postUrl(Uri.parse(url)) |
| .then((HttpClientRequest clientRequest) { |
| String content = "$i$i$i"; |
| clientRequest.addString(content); |
| return clientRequest.close(); |
| }) |
| .then((HttpClientResponse response) { |
| response.listen((_) {}, onDone: () { |
| testProxyDoneCount++; |
| if (testProxyDoneCount == proxy.length * 2) { |
| Expect.equals(proxy.length, server.requestCount); |
| proxyServer.shutdown(); |
| server.shutdown(); |
| secureServer.shutdown(); |
| client.close(); |
| } |
| }); |
| }); |
| } |
| |
| test(false); |
| test(true); |
| } |
| }); |
| }); |
| }); |
| } |
| |
| int testProxyChainDoneCount = 0; |
| void testProxyChain() { |
| // Setup two proxy servers having the first using the second as its proxy. |
| setupProxyServer().then((proxyServer1) { |
| setupProxyServer().then((proxyServer2) { |
| proxyServer1.client.findProxy = (_) => "PROXY 127.0.0.1:${proxyServer2.port}"; |
| |
| setupServer(2, directRequestPaths: ["/4"]).then((server) { |
| HttpClient client = new HttpClient(); |
| |
| List<String> proxy; |
| if (Platform.operatingSystem == "windows") { |
| proxy = |
| ["PROXY localhost:${proxyServer1.port}", |
| "PROXY localhost:${proxyServer1.port}; PROXY hede.hule.hest:8080", |
| "PROXY localhost:${proxyServer1.port}", |
| "PROXY localhost:${proxyServer1.port}", |
| "DIRECT", |
| "PROXY localhost:${proxyServer1.port}; DIRECT"]; |
| } else { |
| proxy = |
| ["PROXY localhost:${proxyServer1.port}", |
| "PROXY localhost:${proxyServer1.port}; PROXY hede.hule.hest:8080", |
| "PROXY hede.hule.hest:8080; PROXY localhost:${proxyServer1.port}", |
| "PROXY hede.hule.hest:8080; PROXY hede.hule.hest:8181;" |
| " PROXY localhost:${proxyServer1.port}", |
| "PROXY hede.hule.hest:8080; PROXY hede.hule.hest:8181; DIRECT", |
| "PROXY localhost:${proxyServer1.port}; DIRECT"]; |
| } |
| |
| client.findProxy = (Uri uri) { |
| // Pick the proxy configuration based on the request path. |
| int index = int.parse(uri.path.substring(1)); |
| return proxy[index]; |
| }; |
| |
| for (int i = 0; i < proxy.length; i++) { |
| client.getUrl(Uri.parse("http://127.0.0.1:${server.port}/$i")) |
| .then((HttpClientRequest clientRequest) { |
| String content = "$i$i$i"; |
| clientRequest.contentLength = content.length; |
| clientRequest.addString(content); |
| return clientRequest.close(); |
| }) |
| .then((HttpClientResponse response) { |
| response.listen((_) {}, onDone: () { |
| testProxyChainDoneCount++; |
| if (testProxyChainDoneCount == proxy.length) { |
| Expect.equals(proxy.length, server.requestCount); |
| proxyServer1.shutdown(); |
| proxyServer2.shutdown(); |
| server.shutdown(); |
| client.close(); |
| } |
| }); |
| }); |
| } |
| }); |
| }); |
| }); |
| } |
| |
| int testRealProxyDoneCount = 0; |
| void testRealProxy() { |
| setupServer(1).then((server) { |
| HttpClient client = new HttpClient(); |
| |
| List<String> proxy = |
| ["PROXY localhost:8080", |
| "PROXY localhost:8080; PROXY hede.hule.hest:8080", |
| "PROXY hede.hule.hest:8080; PROXY localhost:8080", |
| "PROXY localhost:8080; DIRECT"]; |
| |
| client.findProxy = (Uri uri) { |
| // Pick the proxy configuration based on the request path. |
| int index = int.parse(uri.path.substring(1)); |
| return proxy[index]; |
| }; |
| |
| for (int i = 0; i < proxy.length; i++) { |
| client.getUrl(Uri.parse("http://127.0.0.1:${server.port}/$i")) |
| .then((HttpClientRequest clientRequest) { |
| String content = "$i$i$i"; |
| clientRequest.contentLength = content.length; |
| clientRequest.addString(content); |
| return clientRequest.close(); |
| }) |
| .then((HttpClientResponse response) { |
| response.listen((_) {}, onDone: () { |
| testRealProxyDoneCount++; |
| if (testRealProxyDoneCount == proxy.length) { |
| Expect.equals(proxy.length, server.requestCount); |
| server.shutdown(); |
| client.close(); |
| } |
| }); |
| }); |
| } |
| }); |
| } |
| |
| void InitializeSSL() { |
| var testPkcertDatabase = |
| new Path(new Options().script).directoryPath.append('pkcert/'); |
| SecureSocket.initialize(database: testPkcertDatabase.toNativePath(), |
| password: 'dartdart'); |
| } |
| |
| main() { |
| InitializeSSL(); |
| testInvalidProxy(); |
| testDirectProxy(); |
| testProxy(); |
| testProxyChain(); |
| // This test is not normally run. It can be used for locally testing |
| // with a real proxy server (e.g. Apache). |
| //testRealProxy(); |
| } |