1069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project/* 2069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/protocol/ResponseConnControl.java $ 3069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Revision: 618017 $ 4069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Date: 2008-02-03 08:42:22 -0800 (Sun, 03 Feb 2008) $ 5069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 6069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * ==================================================================== 7069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one 8069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * or more contributor license agreements. See the NOTICE file 9069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * distributed with this work for additional information 10069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * regarding copyright ownership. The ASF licenses this file 11069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * to you under the Apache License, Version 2.0 (the 12069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * "License"); you may not use this file except in compliance 13069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * with the License. You may obtain a copy of the License at 14069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 15069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 16069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 17069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Unless required by applicable law or agreed to in writing, 18069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * software distributed under the License is distributed on an 19069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 20069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * KIND, either express or implied. See the License for the 21069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * specific language governing permissions and limitations 22069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * under the License. 23069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * ==================================================================== 24069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 25069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * This software consists of voluntary contributions made by many 26069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * individuals on behalf of the Apache Software Foundation. For more 27069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * information on the Apache Software Foundation, please see 28069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <http://www.apache.org/>. 29069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 30069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 31069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 32069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectpackage org.apache.http.protocol; 33069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 34069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport java.io.IOException; 35069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 36069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.Header; 37069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpEntity; 38069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpException; 39069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpRequest; 40069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpResponse; 41069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpResponseInterceptor; 42069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpStatus; 43069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpVersion; 44069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.ProtocolVersion; 45069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 46069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project/** 47069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * A response interceptor that suggests connection keep-alive to the client. 48069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * For use on the server side. 49069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 50069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 51069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 52069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @version $Revision: 618017 $ 53069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 54069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @since 4.0 55069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 56069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectpublic class ResponseConnControl implements HttpResponseInterceptor { 57069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 58069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public ResponseConnControl() { 59069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project super(); 60069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 61069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 62069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public void process(final HttpResponse response, final HttpContext context) 63069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throws HttpException, IOException { 64069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (response == null) { 65069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("HTTP response may not be null"); 66069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 67069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (context == null) { 68069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("HTTP context may not be null"); 69069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 70069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // Always drop connection after certain type of responses 71069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int status = response.getStatusLine().getStatusCode(); 72069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (status == HttpStatus.SC_BAD_REQUEST || 73069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project status == HttpStatus.SC_REQUEST_TIMEOUT || 74069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project status == HttpStatus.SC_LENGTH_REQUIRED || 75069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project status == HttpStatus.SC_REQUEST_TOO_LONG || 76069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project status == HttpStatus.SC_REQUEST_URI_TOO_LONG || 77069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project status == HttpStatus.SC_SERVICE_UNAVAILABLE || 78069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project status == HttpStatus.SC_NOT_IMPLEMENTED) { 79069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project response.setHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_CLOSE); 80069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return; 81069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 82069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // Always drop connection for HTTP/1.0 responses and below 83069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // if the content body cannot be correctly delimited 84069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project HttpEntity entity = response.getEntity(); 85069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (entity != null) { 86069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project ProtocolVersion ver = response.getStatusLine().getProtocolVersion(); 87069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (entity.getContentLength() < 0 && 88069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project (!entity.isChunked() || ver.lessEquals(HttpVersion.HTTP_1_0))) { 89069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project response.setHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_CLOSE); 90069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return; 91069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 92069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 93069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // Drop connection if requested by the client 94069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project HttpRequest request = (HttpRequest) 95069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project context.getAttribute(ExecutionContext.HTTP_REQUEST); 96069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (request != null) { 97069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project Header header = request.getFirstHeader(HTTP.CONN_DIRECTIVE); 98069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (header != null) { 99069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project response.setHeader(HTTP.CONN_DIRECTIVE, header.getValue()); 100069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 101069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 102069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 103069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 104069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project} 105