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/util/EntityUtils.java $ 3069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Revision: 569637 $ 4069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Date: 2007-08-25 00:36:59 -0700 (Sat, 25 Aug 2007) $ 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.util; 33069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 34069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport java.io.IOException; 35069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport java.io.InputStream; 36069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport java.io.InputStreamReader; 37069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport java.io.Reader; 38069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 39069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HeaderElement; 40069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpEntity; 41069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.NameValuePair; 42069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.ParseException; 43069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.protocol.HTTP; 44069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 45069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project/** 46069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Static helpers for dealing with {@link HttpEntity entities}. 47069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 48069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 49069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 50069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @version $Revision: 569637 $ 51069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 52069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @since 4.0 53069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 54069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectpublic final class EntityUtils { 55069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 56069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project /** Disabled default constructor. */ 57069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private EntityUtils() { 58069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 59069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 60069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public static byte[] toByteArray(final HttpEntity entity) throws IOException { 61069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (entity == null) { 62069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("HTTP entity may not be null"); 63069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 64069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project InputStream instream = entity.getContent(); 65069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (instream == null) { 66069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return new byte[] {}; 67069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 68069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (entity.getContentLength() > Integer.MAX_VALUE) { 69069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("HTTP entity too large to be buffered in memory"); 70069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 71069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int i = (int)entity.getContentLength(); 72069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (i < 0) { 73069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project i = 4096; 74069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 75069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project ByteArrayBuffer buffer = new ByteArrayBuffer(i); 76069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project try { 77069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project byte[] tmp = new byte[4096]; 78069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int l; 79069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project while((l = instream.read(tmp)) != -1) { 80069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project buffer.append(tmp, 0, l); 81069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 82069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } finally { 83069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project instream.close(); 84069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 85069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return buffer.toByteArray(); 86069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 87069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 88069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public static String getContentCharSet(final HttpEntity entity) 89069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throws ParseException { 90069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 91069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (entity == null) { 92069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("HTTP entity may not be null"); 93069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 94069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project String charset = null; 95069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (entity.getContentType() != null) { 96069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project HeaderElement values[] = entity.getContentType().getElements(); 97069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (values.length > 0) { 98069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project NameValuePair param = values[0].getParameterByName("charset"); 99069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (param != null) { 100069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project charset = param.getValue(); 101069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 102069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 103069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 104069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return charset; 105069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 106069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 107069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public static String toString( 108069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project final HttpEntity entity, final String defaultCharset) throws IOException, ParseException { 109069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (entity == null) { 110069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("HTTP entity may not be null"); 111069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 112069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project InputStream instream = entity.getContent(); 113069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (instream == null) { 114069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return ""; 115069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 116069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (entity.getContentLength() > Integer.MAX_VALUE) { 117069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("HTTP entity too large to be buffered in memory"); 118069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 119069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int i = (int)entity.getContentLength(); 120069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (i < 0) { 121069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project i = 4096; 122069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 123069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project String charset = getContentCharSet(entity); 124069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (charset == null) { 125069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project charset = defaultCharset; 126069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 127069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (charset == null) { 128069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project charset = HTTP.DEFAULT_CONTENT_CHARSET; 129069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 130069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project Reader reader = new InputStreamReader(instream, charset); 131069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project CharArrayBuffer buffer = new CharArrayBuffer(i); 132069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project try { 133069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project char[] tmp = new char[1024]; 134069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int l; 135069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project while((l = reader.read(tmp)) != -1) { 136069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project buffer.append(tmp, 0, l); 137069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 138069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } finally { 139069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project reader.close(); 140069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 141069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return buffer.toString(); 142069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 143069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 144069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public static String toString(final HttpEntity entity) 145069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throws IOException, ParseException { 146069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return toString(entity, null); 147069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 148069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 149069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project} 150