StrictContentLengthStrategy.java revision 069490a5ca2fd1988d29daf45d892f47ad665115
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/impl/entity/StrictContentLengthStrategy.java $ 3069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Revision: 573949 $ 4069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Date: 2007-09-08 22:46:25 -0700 (Sat, 08 Sep 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.impl.entity; 33069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 34069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.Header; 35069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpException; 36069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpMessage; 37069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpVersion; 38069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.ProtocolException; 39069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.entity.ContentLengthStrategy; 40069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.protocol.HTTP; 41069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 42069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project/** 43069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * The strict implementation of the content length strategy. 44069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 45069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * This entity generator comforms to the entity transfer rules outlined in the 46069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec4.4">Section 4.4</a>, 47069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.6">Section 3.6</a>, 48069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.41">Section 14.41</a> 49069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * and <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec14.13">Section 14.13</a> 50069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * of <a href="http://www.w3.org/Protocols/rfc2616/rfc2616.txt">RFC 2616</a> 51069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 52069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <h>4.4 Message Length</h> 53069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 54069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * The transfer-length of a message is the length of the message-body as it appears in the 55069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * message; that is, after any transfer-codings have been applied. When a message-body is 56069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * included with a message, the transfer-length of that body is determined by one of the 57069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * following (in order of precedence): 58069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 59069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 60069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 1.Any response message which "MUST NOT" include a message-body (such as the 1xx, 204, 61069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * and 304 responses and any response to a HEAD request) is always terminated by the first 62069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * empty line after the header fields, regardless of the entity-header fields present in the 63069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * message. 64069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 65069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 66069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 2.If a Transfer-Encoding header field (section 14.41) is present and has any value other 67069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * than "identity", then the transfer-length is defined by use of the "chunked" transfer- 68069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * coding (section 3.6), unless the message is terminated by closing the connection. 69069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 70069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 71069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 3.If a Content-Length header field (section 14.13) is present, its decimal value in 72069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * OCTETs represents both the entity-length and the transfer-length. The Content-Length 73069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * header field MUST NOT be sent if these two lengths are different (i.e., if a 74069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Transfer-Encoding 75069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 76069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <pre> 77069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * header field is present). If a message is received with both a 78069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Transfer-Encoding header field and a Content-Length header field, 79069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * the latter MUST be ignored. 80069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </pre> 81069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 82069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 4.If the message uses the media type "multipart/byteranges", and the ransfer-length is not 83069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * otherwise specified, then this self- elimiting media type defines the transfer-length. 84069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * This media type UST NOT be used unless the sender knows that the recipient can arse it; the 85069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * presence in a request of a Range header with ultiple byte- range specifiers from a 1.1 86069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * client implies that the lient can parse multipart/byteranges responses. 87069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 88069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <pre> 89069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * A range header might be forwarded by a 1.0 proxy that does not 90069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * understand multipart/byteranges; in this case the server MUST 91069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * delimit the message using methods defined in items 1,3 or 5 of 92069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * this section. 93069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </pre> 94069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 95069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 5.By the server closing the connection. (Closing the connection cannot be used to indicate 96069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * the end of a request body, since that would leave no possibility for the server to send back 97069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * a response.) 98069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 99069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 100069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * For compatibility with HTTP/1.0 applications, HTTP/1.1 requests containing a message-body 101069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * MUST include a valid Content-Length header field unless the server is known to be HTTP/1.1 102069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * compliant. If a request contains a message-body and a Content-Length is not given, the 103069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * server SHOULD respond with 400 (bad request) if it cannot determine the length of the 104069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * message, or with 411 (length required) if it wishes to insist on receiving a valid 105069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Content-Length. 106069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 107069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p>All HTTP/1.1 applications that receive entities MUST accept the "chunked" transfer-coding 108069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * (section 3.6), thus allowing this mechanism to be used for messages when the message 109069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * length cannot be determined in advance. 110069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 111069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <h>3.6 Transfer Codings</h> 112069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 113069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Transfer-coding values are used to indicate an encoding transformation that 114069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * has been, can be, or may need to be applied to an entity-body in order to ensure 115069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * "safe transport" through the network. This differs from a content coding in that 116069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * the transfer-coding is a property of the message, not of the original entity. 117069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 118069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <pre> 119069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * transfer-coding = "chunked" | transfer-extension 120069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * transfer-extension = token *( ";" parameter ) 121069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </pre> 122069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 123069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Parameters are in the form of attribute/value pairs. 124069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 125069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <pre> 126069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * parameter = attribute "=" value 127069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * attribute = token 128069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * value = token | quoted-string 129069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </pre> 130069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 131069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * All transfer-coding values are case-insensitive. HTTP/1.1 uses transfer-coding values in 132069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * the TE header field (section 14.39) and in the Transfer-Encoding header field (section 14.41). 133069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 134069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 135069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Whenever a transfer-coding is applied to a message-body, the set of transfer-codings MUST 136069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * include "chunked", unless the message is terminated by closing the connection. When the 137069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * "chunked" transfer-coding is used, it MUST be the last transfer-coding applied to the 138069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * message-body. The "chunked" transfer-coding MUST NOT be applied more than once to a 139069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * message-body. These rules allow the recipient to determine the transfer-length of the 140069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * message (section 4.4). 141069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 142069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <h>14.41 Transfer-Encoding</h> 143069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 144069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * The Transfer-Encoding general-header field indicates what (if any) type of transformation has 145069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * been applied to the message body in order to safely transfer it between the sender and the 146069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * recipient. This differs from the content-coding in that the transfer-coding is a property of 147069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * the message, not of the entity. 148069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 149069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <pre> 150069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Transfer-Encoding = "Transfer-Encoding" ":" 1#transfer-coding 151069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </pre> 152069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 153069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * If multiple encodings have been applied to an entity, the transfer- codings MUST be listed in 154069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * the order in which they were applied. Additional information about the encoding parameters 155069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * MAY be provided by other entity-header fields not defined by this specification. 156069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 157069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <h>14.13 Content-Length</h> 158069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 159069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * The Content-Length entity-header field indicates the size of the entity-body, in decimal 160069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * number of OCTETs, sent to the recipient or, in the case of the HEAD method, the size of 161069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * the entity-body that would have been sent had the request been a GET. 162069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 163069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <pre> 164069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Content-Length = "Content-Length" ":" 1*DIGIT 165069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </pre> 166069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <p> 167069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Applications SHOULD use this field to indicate the transfer-length of the message-body, 168069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * unless this is prohibited by the rules in section 4.4. 169069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * </p> 170069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 171069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 172069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 173069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @version $Revision: 573949 $ 174069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 175069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @since 4.0 176069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 177069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectpublic class StrictContentLengthStrategy implements ContentLengthStrategy { 178069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 179069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public StrictContentLengthStrategy() { 180069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project super(); 181069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 182069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 183069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public long determineLength(final HttpMessage message) throws HttpException { 184069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (message == null) { 185069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("HTTP message may not be null"); 186069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 187069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // Although Transfer-Encoding is specified as a list, in practice 188069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // it is either missing or has the single value "chunked". So we 189069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // treat it as a single-valued header here. 190069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project Header transferEncodingHeader = message.getFirstHeader(HTTP.TRANSFER_ENCODING); 191069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project Header contentLengthHeader = message.getFirstHeader(HTTP.CONTENT_LEN); 192069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (transferEncodingHeader != null) { 193069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project String s = transferEncodingHeader.getValue(); 194069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (HTTP.CHUNK_CODING.equalsIgnoreCase(s)) { 195069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (message.getProtocolVersion().lessEquals(HttpVersion.HTTP_1_0)) { 196069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new ProtocolException( 197069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project "Chunked transfer encoding not allowed for " + 198069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project message.getProtocolVersion()); 199069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 200069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return CHUNKED; 201069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else if (HTTP.IDENTITY_CODING.equalsIgnoreCase(s)) { 202069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return IDENTITY; 203069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 204069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new ProtocolException( 205069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project "Unsupported transfer encoding: " + s); 206069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 207069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else if (contentLengthHeader != null) { 208069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project String s = contentLengthHeader.getValue(); 209069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project try { 210069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project long len = Long.parseLong(s); 211069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return len; 212069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } catch (NumberFormatException e) { 213069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new ProtocolException("Invalid content length: " + s); 214069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 215069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 216069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return IDENTITY; 217069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 218069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 219069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 220069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project} 221