1600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang/* 2600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Conditions Of Use 3600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 4600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* This software was developed by employees of the National Institute of 5600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Standards and Technology (NIST), an agency of the Federal Government. 6600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Pursuant to title 15 Untied States Code Section 105, works of NIST 7600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* employees are not subject to copyright protection in the United States 8600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* and are considered to be in the public domain. As a result, a formal 9600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* license is not needed to use the software. 10600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 11600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* This software is provided by NIST as a service and is expressly 12600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED 13600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF 14600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT 15600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* AND DATA ACCURACY. NIST does not warrant or make any representations 16600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* regarding the use of the software or the results thereof, including but 17600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* not limited to the correctness, accuracy, reliability or usefulness of 18600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* the software. 19600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 20600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Permission to use this software is contingent upon your acceptance 21600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* of the terms of this agreement 22600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 23600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* . 24600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 25600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang*/ 26600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangpackage gov.nist.javax.sip.parser; 27600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport gov.nist.javax.sip.header.*; 28600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport gov.nist.core.*; 29600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport java.text.ParseException; 30600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport javax.sip.*; 31600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 32600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang/** 33600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Accept-Encoding SIP (HTTP) Header parser. 34600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 35600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @version 1.2 $Revision: 1.7 $ $Date: 2009/07/17 18:57:56 $ 36600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 37600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @author Olivier Deruelle 38600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @author M. Ranganathan 39600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 40600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 41600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * <pre> 42600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 43600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * The Accept-Encoding request-header field is similar to Accept, but 44600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * restricts the content-codings (section 3.5) that are acceptable in 45600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * the response. 46600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 47600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 48600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Accept-Encoding = "Accept-Encoding" ":" 49600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * ( encoding *( "," encoding) ) 50600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * encoding = ( codings *[ ";" "q" "=" qvalue ] ) 51600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * codings = ( content-coding | "*" ) 52600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 53600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Examples of its use are: 54600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 55600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Accept-Encoding: compress, gzip 56600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Accept-Encoding: 57600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Accept-Encoding: * 58600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Accept-Encoding: compress;q=0.5, gzip;q=1.0 59600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Accept-Encoding: gzip;q=1.0, identity; q=0.5, *;q=0 60600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * </pre> 61600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 62600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 63600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangpublic class AcceptEncodingParser extends HeaderParser { 64600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 65600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 66600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Constructor 67600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @param acceptEncoding message to parse 68600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 69600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public AcceptEncodingParser(String acceptEncoding) { 70600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang super(acceptEncoding); 71600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 72600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 73600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 74600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Constructor 75600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @param lexer Lexer to set 76600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 77600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang protected AcceptEncodingParser(Lexer lexer) { 78600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang super(lexer); 79600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 80600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 81600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 82600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * parse the String message 83600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @return SIPHeader (AcceptEncoding object) 84600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @throws ParseException if the message does not respect the spec. 85600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 86600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public SIPHeader parse() throws ParseException { 87600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang AcceptEncodingList acceptEncodingList = new AcceptEncodingList(); 88600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang if (debug) 89600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang dbg_enter("AcceptEncodingParser.parse"); 90600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 91600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang try { 92600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang headerName(TokenTypes.ACCEPT_ENCODING); 93600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang // empty body is fine for this header. 94600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang if (lexer.lookAhead(0) == '\n') { 95600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang AcceptEncoding acceptEncoding = new AcceptEncoding(); 96600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang acceptEncodingList.add(acceptEncoding); 97600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } else { 98600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang while (lexer.lookAhead(0) != '\n') { 99600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang AcceptEncoding acceptEncoding = new AcceptEncoding(); 100600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang if (lexer.lookAhead(0) != ';') { 101600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang // Content-Coding: 102600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang lexer.match(TokenTypes.ID); 103600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang Token value = lexer.getNextToken(); 104600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang acceptEncoding.setEncoding(value.getTokenValue()); 105600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 106600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 107600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang while (lexer.lookAhead(0) == ';') { 108600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.lexer.match(';'); 109600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.lexer.SPorHT(); 110600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.lexer.match('q'); 111600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.lexer.SPorHT(); 112600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.lexer.match('='); 113600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.lexer.SPorHT(); 114600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang lexer.match(TokenTypes.ID); 115600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang Token value = lexer.getNextToken(); 116600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang try { 117600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang float qv = Float.parseFloat(value.getTokenValue()); 118600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang acceptEncoding.setQValue(qv); 119600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } catch (NumberFormatException ex) { 120600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang throw createParseException(ex.getMessage()); 121600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } catch (InvalidArgumentException ex) { 122600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang throw createParseException(ex.getMessage()); 123600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 124600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.lexer.SPorHT(); 125600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 126600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 127600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang acceptEncodingList.add(acceptEncoding); 128600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang if (lexer.lookAhead(0) == ',') { 129600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.lexer.match(','); 130600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.lexer.SPorHT(); 131600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 132600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 133600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 134600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 135600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return acceptEncodingList; 136600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } finally { 137600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang if (debug) 138600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang dbg_leave("AcceptEncodingParser.parse"); 139600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 140600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 141600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang} 142600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang/* 143600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * $Log: AcceptEncodingParser.java,v $ 144600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Revision 1.7 2009/07/17 18:57:56 emcho 145600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project. 146600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 147600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Revision 1.6 2006/07/13 09:02:03 mranga 148600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Issue number: 149600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Obtained from: 150600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Submitted by: jeroen van bemmel 151600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Reviewed by: mranga 152600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Moved some changes from jain-sip-1.2 to java.net 153600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 154600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: ---------------------------------------------------------------------- 155600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: Issue number: 156600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: If this change addresses one or more issues, 157600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: then enter the issue number(s) here. 158600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: Obtained from: 159600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: If this change has been taken from another system, 160600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: then name the system in this line, otherwise delete it. 161600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: Submitted by: 162600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: If this code has been contributed to the project by someone else; i.e., 163600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: they sent us a patch or a set of diffs, then include their name/email 164600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: address here. If this is your work then delete this line. 165600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: Reviewed by: 166600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: If we are doing pre-commit code reviews and someone else has 167600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: reviewed your changes, include their name(s) here. 168600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: If you have not had it reviewed then delete this line. 169600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 170600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Revision 1.3 2006/06/19 06:47:27 mranga 171600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * javadoc fixups 172600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 173600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Revision 1.2 2006/06/16 15:26:28 mranga 174600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak 175600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 176600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Revision 1.1.1.1 2005/10/04 17:12:35 mranga 177600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 178600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Import 179600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 180600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 181600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Revision 1.4 2004/01/22 13:26:31 sverker 182600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Issue number: 183600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Obtained from: 184600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Submitted by: sverker 185600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Reviewed by: mranga 186600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 187600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags. 188600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 189600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: ---------------------------------------------------------------------- 190600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: Issue number: 191600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: If this change addresses one or more issues, 192600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: then enter the issue number(s) here. 193600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: Obtained from: 194600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: If this change has been taken from another system, 195600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: then name the system in this line, otherwise delete it. 196600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: Submitted by: 197600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: If this code has been contributed to the project by someone else; i.e., 198600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: they sent us a patch or a set of diffs, then include their name/email 199600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: address here. If this is your work then delete this line. 200600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: Reviewed by: 201600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: If we are doing pre-commit code reviews and someone else has 202600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: reviewed your changes, include their name(s) here. 203600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * CVS: If you have not had it reviewed then delete this line. 204600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 205600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 206