1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/ResponseContent.java Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,97 @@ 1.4 +/* 1.5 + * ==================================================================== 1.6 + * Licensed to the Apache Software Foundation (ASF) under one 1.7 + * or more contributor license agreements. See the NOTICE file 1.8 + * distributed with this work for additional information 1.9 + * regarding copyright ownership. The ASF licenses this file 1.10 + * to you under the Apache License, Version 2.0 (the 1.11 + * "License"); you may not use this file except in compliance 1.12 + * with the License. You may obtain a copy of the License at 1.13 + * 1.14 + * http://www.apache.org/licenses/LICENSE-2.0 1.15 + * 1.16 + * Unless required by applicable law or agreed to in writing, 1.17 + * software distributed under the License is distributed on an 1.18 + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 1.19 + * KIND, either express or implied. See the License for the 1.20 + * specific language governing permissions and limitations 1.21 + * under the License. 1.22 + * ==================================================================== 1.23 + * 1.24 + * This software consists of voluntary contributions made by many 1.25 + * individuals on behalf of the Apache Software Foundation. For more 1.26 + * information on the Apache Software Foundation, please see 1.27 + * <http://www.apache.org/>. 1.28 + * 1.29 + */ 1.30 + 1.31 +package ch.boye.httpclientandroidlib.protocol; 1.32 + 1.33 +import java.io.IOException; 1.34 + 1.35 +import ch.boye.httpclientandroidlib.HttpEntity; 1.36 +import ch.boye.httpclientandroidlib.HttpException; 1.37 +import ch.boye.httpclientandroidlib.HttpResponse; 1.38 +import ch.boye.httpclientandroidlib.HttpResponseInterceptor; 1.39 +import ch.boye.httpclientandroidlib.HttpStatus; 1.40 +import ch.boye.httpclientandroidlib.HttpVersion; 1.41 +import ch.boye.httpclientandroidlib.ProtocolVersion; 1.42 +import ch.boye.httpclientandroidlib.ProtocolException; 1.43 + 1.44 +/** 1.45 + * ResponseContent is the most important interceptor for outgoing responses. 1.46 + * It is responsible for delimiting content length by adding 1.47 + * <code>Content-Length</code> or <code>Transfer-Content</code> headers based 1.48 + * on the properties of the enclosed entity and the protocol version. 1.49 + * This interceptor is required for correct functioning of server side protocol 1.50 + * processors. 1.51 + * 1.52 + * @since 4.0 1.53 + */ 1.54 +public class ResponseContent implements HttpResponseInterceptor { 1.55 + 1.56 + public ResponseContent() { 1.57 + super(); 1.58 + } 1.59 + 1.60 + public void process(final HttpResponse response, final HttpContext context) 1.61 + throws HttpException, IOException { 1.62 + if (response == null) { 1.63 + throw new IllegalArgumentException("HTTP response may not be null"); 1.64 + } 1.65 + if (response.containsHeader(HTTP.TRANSFER_ENCODING)) { 1.66 + throw new ProtocolException("Transfer-encoding header already present"); 1.67 + } 1.68 + if (response.containsHeader(HTTP.CONTENT_LEN)) { 1.69 + throw new ProtocolException("Content-Length header already present"); 1.70 + } 1.71 + ProtocolVersion ver = response.getStatusLine().getProtocolVersion(); 1.72 + HttpEntity entity = response.getEntity(); 1.73 + if (entity != null) { 1.74 + long len = entity.getContentLength(); 1.75 + if (entity.isChunked() && !ver.lessEquals(HttpVersion.HTTP_1_0)) { 1.76 + response.addHeader(HTTP.TRANSFER_ENCODING, HTTP.CHUNK_CODING); 1.77 + } else if (len >= 0) { 1.78 + response.addHeader(HTTP.CONTENT_LEN, Long.toString(entity.getContentLength())); 1.79 + } 1.80 + // Specify a content type if known 1.81 + if (entity.getContentType() != null && !response.containsHeader( 1.82 + HTTP.CONTENT_TYPE )) { 1.83 + response.addHeader(entity.getContentType()); 1.84 + } 1.85 + // Specify a content encoding if known 1.86 + if (entity.getContentEncoding() != null && !response.containsHeader( 1.87 + HTTP.CONTENT_ENCODING)) { 1.88 + response.addHeader(entity.getContentEncoding()); 1.89 + } 1.90 + } else { 1.91 + int status = response.getStatusLine().getStatusCode(); 1.92 + if (status != HttpStatus.SC_NO_CONTENT 1.93 + && status != HttpStatus.SC_NOT_MODIFIED 1.94 + && status != HttpStatus.SC_RESET_CONTENT) { 1.95 + response.addHeader(HTTP.CONTENT_LEN, "0"); 1.96 + } 1.97 + } 1.98 + } 1.99 + 1.100 +}