1 /* 2 * $Header: /home/cvs/jakarta-commons/httpclient/src/test/org/apache/commons/httpclient/server/TransparentProxyRequestHandler.java,v 1.1.2.1 2003/12/05 21:02:52 oglueck Exp $ 3 * $Revision: 1.1.2.1 $ 4 * $Date: 2003/12/05 21:02:52 $ 5 * 6 * ==================================================================== 7 * 8 * The Apache Software License, Version 1.1 9 * 10 * Copyright (c) 1999-2003 The Apache Software Foundation. All rights 11 * reserved. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in 22 * the documentation and/or other materials provided with the 23 * distribution. 24 * 25 * 3. The end-user documentation included with the redistribution, if 26 * any, must include the following acknowlegement: 27 * "This product includes software developed by the 28 * Apache Software Foundation (http://www.apache.org/)." 29 * Alternately, this acknowlegement may appear in the software itself, 30 * if and wherever such third-party acknowlegements normally appear. 31 * 32 * 4. The names "The Jakarta Project", "Commons", and "Apache Software 33 * Foundation" must not be used to endorse or promote products derived 34 * from this software without prior written permission. For written 35 * permission, please contact apache@apache.org. 36 * 37 * 5. Products derived from this software may not be called "Apache" 38 * nor may "Apache" appear in their names without prior written 39 * permission of the Apache Group. 40 * 41 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 42 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 43 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 44 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 45 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 47 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 48 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 49 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 50 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 51 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 52 * SUCH DAMAGE. 53 * ==================================================================== 54 * 55 * This software consists of voluntary contributions made by many 56 * individuals on behalf of the Apache Software Foundation. For more 57 * information on the Apache Software Foundation, please see 58 * <http://www.apache.org/>. 59 * 60 * [Additional notices, if required by prior licensing conditions] 61 * 62 */ 63 64 package org.apache.commons.httpclient.server; 65 66 import java.io.IOException; 67 import java.io.InputStream; 68 import java.io.OutputStream; 69 import java.io.OutputStreamWriter; 70 import java.io.UnsupportedEncodingException; 71 import java.io.Writer; 72 import java.net.Socket; 73 74 import org.apache.commons.httpclient.Header; 75 import org.apache.commons.httpclient.HttpConstants; 76 import org.apache.commons.httpclient.HttpURL; 77 import org.apache.commons.httpclient.URI; 78 79 /*** 80 * This request handler can handle the CONNECT method. It does 81 * nothing for any other HTTP methods. 82 * 83 * @author Ortwin Glueck 84 */ 85 public class TransparentProxyRequestHandler implements HttpRequestHandler { 86 87 /* (non-Javadoc) 88 * @see org.apache.commons.httpclient.server.HttpRequestHandler#processRequest(org.apache.commons.httpclient.server.SimpleHttpServerConnection) 89 */ 90 public boolean processRequest(SimpleHttpServerConnection conn) throws IOException { 91 RequestLine line = conn.getRequestLine(); 92 String method = line.getMethod(); 93 if (!"CONNECT".equalsIgnoreCase(method)) return false; 94 URI url = new HttpURL(line.getUri()); 95 handshake(conn, url); 96 return true; 97 } 98 99 private void handshake(SimpleHttpServerConnection conn, URI url) throws IOException { 100 Socket targetSocket = new Socket(url.getHost(), url.getPort()); 101 InputStream sourceIn = conn.getInputStream(); 102 OutputStream sourceOut = conn.getOutputStream(); 103 InputStream targetIn = targetSocket.getInputStream(); 104 OutputStream targetOut = targetSocket.getOutputStream(); 105 106 ResponseWriter out = conn.getWriter(); 107 out.println("HTTP/1.1 200 Connection established"); 108 out.flush(); 109 110 BidiStreamProxy bdsp = new BidiStreamProxy(sourceIn, sourceOut, targetIn, targetOut); 111 bdsp.start(); 112 try { 113 bdsp.block(); 114 } catch (InterruptedException e) { 115 throw new IOException(e.toString()); 116 } 117 } 118 119 private void sendHeaders(Header[] headers, OutputStream os) throws IOException { 120 Writer out; 121 try { 122 out = new OutputStreamWriter(os, HttpConstants.HTTP_ELEMENT_CHARSET); 123 } catch (UnsupportedEncodingException e) { 124 throw new RuntimeException(e.toString()); 125 } 126 for (int i=0; i<headers.length; i++) { 127 out.write(headers[i].toExternalForm()); 128 } 129 } 130 }

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