1 /* 2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/protocol/RequestTargetHost.java $ 3 * $Revision: 573864 $ 4 * $Date: 2007-09-08 08:53:25 -0700 (Sat, 08 Sep 2007) $ 5 * 6 * ==================================================================== 7 * Licensed to the Apache Software Foundation (ASF) under one 8 * or more contributor license agreements. See the NOTICE file 9 * distributed with this work for additional information 10 * regarding copyright ownership. The ASF licenses this file 11 * to you under the Apache License, Version 2.0 (the 12 * "License"); you may not use this file except in compliance 13 * with the License. You may obtain a copy of the License at 14 * 15 * http://www.apache.org/licenses/LICENSE-2.0 16 * 17 * Unless required by applicable law or agreed to in writing, 18 * software distributed under the License is distributed on an 19 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 20 * KIND, either express or implied. See the License for the 21 * specific language governing permissions and limitations 22 * under the License. 23 * ==================================================================== 24 * 25 * This software consists of voluntary contributions made by many 26 * individuals on behalf of the Apache Software Foundation. For more 27 * information on the Apache Software Foundation, please see 28 * <http://www.apache.org/>. 29 * 30 */ 31 32 package org.apache.http.protocol; 33 34 import java.io.IOException; 35 import java.net.InetAddress; 36 37 import org.apache.http.HttpConnection; 38 import org.apache.http.HttpException; 39 import org.apache.http.HttpHost; 40 import org.apache.http.HttpInetConnection; 41 import org.apache.http.HttpRequest; 42 import org.apache.http.HttpRequestInterceptor; 43 import org.apache.http.HttpVersion; 44 import org.apache.http.ProtocolVersion; 45 import org.apache.http.ProtocolException; 46 47 /** 48 * A request interceptor that sets the Host header for HTTP/1.1 requests. 49 * 50 * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 51 * 52 * @version $Revision: 573864 $ 53 * 54 * @since 4.0 55 * 56 * @deprecated Please use {@link java.net.URL#openConnection} instead. 57 * Please visit <a href="http://android-developers.blogspot.com/2011/09/androids-http-clients.html">this webpage</a> 58 * for further details. 59 */ 60 @Deprecated 61 public class RequestTargetHost implements HttpRequestInterceptor { 62 RequestTargetHost()63 public RequestTargetHost() { 64 super(); 65 } 66 process(final HttpRequest request, final HttpContext context)67 public void process(final HttpRequest request, final HttpContext context) 68 throws HttpException, IOException { 69 if (request == null) { 70 throw new IllegalArgumentException("HTTP request may not be null"); 71 } 72 if (context == null) { 73 throw new IllegalArgumentException("HTTP context may not be null"); 74 } 75 if (!request.containsHeader(HTTP.TARGET_HOST)) { 76 HttpHost targethost = (HttpHost) context 77 .getAttribute(ExecutionContext.HTTP_TARGET_HOST); 78 if (targethost == null) { 79 HttpConnection conn = (HttpConnection) context 80 .getAttribute(ExecutionContext.HTTP_CONNECTION); 81 if (conn instanceof HttpInetConnection) { 82 // Populate the context with a default HTTP host based on the 83 // inet address of the target host 84 InetAddress address = ((HttpInetConnection) conn).getRemoteAddress(); 85 int port = ((HttpInetConnection) conn).getRemotePort(); 86 if (address != null) { 87 targethost = new HttpHost(address.getHostName(), port); 88 } 89 } 90 if (targethost == null) { 91 ProtocolVersion ver = request.getRequestLine().getProtocolVersion(); 92 if (ver.lessEquals(HttpVersion.HTTP_1_0)) { 93 return; 94 } else { 95 throw new ProtocolException("Target host missing"); 96 } 97 } 98 } 99 request.addHeader(HTTP.TARGET_HOST, targethost.toHostString()); 100 } 101 } 102 103 } 104