1/*
2* Conditions Of Use
3*
4* This software was developed by employees of the National Institute of
5* Standards and Technology (NIST), an agency of the Federal Government.
6* Pursuant to title 15 Untied States Code Section 105, works of NIST
7* employees are not subject to copyright protection in the United States
8* and are considered to be in the public domain.  As a result, a formal
9* license is not needed to use the software.
10*
11* This software is provided by NIST as a service and is expressly
12* provided "AS IS."  NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
13* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
14* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
15* AND DATA ACCURACY.  NIST does not warrant or make any representations
16* regarding the use of the software or the results thereof, including but
17* not limited to the correctness, accuracy, reliability or usefulness of
18* the software.
19*
20* Permission to use this software is contingent upon your acceptance
21* of the terms of this agreement
22*
23* .
24*
25*/
26package gov.nist.javax.sip.parser;
27
28import gov.nist.javax.sip.header.*;
29import java.text.ParseException;
30
31/**
32 * Parser for Server header.
33 *
34 * @version 1.2 $Revision: 1.9 $ $Date: 2009/07/17 18:58:05 $
35 *
36 * @author Olivier Deruelle   <br/>
37 * @author M. Ranganathan   <br/>
38 *
39 *
40 */
41public class ServerParser extends HeaderParser {
42
43    /**
44     * Creates a new instance of ServerParser
45     * @param server the header to parse
46     */
47    public ServerParser(String server) {
48        super(server);
49    }
50
51    /**
52     * Constructor
53     * @param lexer the lexer to use to parse the header
54     */
55    protected ServerParser(Lexer lexer) {
56        super(lexer);
57    }
58
59    /**
60     * parse the String server
61     * @return SIPHeader (Server object)
62     * @throws SIPParseException if the message does not respect the spec.
63     */
64    public SIPHeader parse() throws ParseException {
65
66        if (debug)
67            dbg_enter("ServerParser.parse");
68        Server server = new Server();
69        try {
70            headerName(TokenTypes.SERVER);
71            if (this.lexer.lookAhead(0) == '\n')
72                throw createParseException("empty header");
73
74            //  mandatory token: product[/product-version] | (comment)
75            while (this.lexer.lookAhead(0) != '\n'
76                && this.lexer.lookAhead(0) != '\0') {
77                if (this.lexer.lookAhead(0) == '(') {
78                    String comment = this.lexer.comment();
79                    server.addProductToken('(' + comment + ')');
80                } else {
81                    String tok;
82                    int marker = 0;
83                    try {
84                        marker = this.lexer.markInputPosition();
85                        tok = this.lexer.getString('/');
86
87                        if (tok.charAt(tok.length() - 1) == '\n')
88                            tok = tok.trim();
89                        server.addProductToken(tok);
90                    } catch (ParseException ex) {
91                        this.lexer.rewindInputPosition(marker);
92                        tok = this.lexer.getRest().trim();
93                        server.addProductToken(tok);
94                        break;
95                    }
96                }
97            }
98
99        } finally {
100            if (debug)
101                dbg_leave("ServerParser.parse");
102        }
103
104        return server;
105    }
106
107/*
108    public static void main(String args[]) throws ParseException {
109    String server[] = {
110            "Server: Softphone/Beta1.5 \n",
111            "Server: HomeServer v2\n",
112            "Server: Nist/Beta1 (beta version) \n",
113            "Server: Nist proxy (beta version)\n",
114            "Server: Nist1.0/Beta2 UbiServer/vers.1.0 (new stuff) (Cool) \n",
115        "Server: Sip EXpress router (0.8.11 (sparc64/solaris))\n"
116            };
117
118    for (int i = 0; i < server.length; i++ ) {
119        ServerParser parser =
120          new ServerParser(server[i]);
121        Server s= (Server) parser.parse();
122        System.out.println("encoded = " + s.encode());
123    }
124
125    }
126*/
127
128}
129/*
130 * $Log: ServerParser.java,v $
131 * Revision 1.9  2009/07/17 18:58:05  emcho
132 * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
133 *
134 * Revision 1.8  2006/07/13 09:02:16  mranga
135 * Issue number:
136 * Obtained from:
137 * Submitted by:  jeroen van bemmel
138 * Reviewed by:   mranga
139 * Moved some changes from jain-sip-1.2 to java.net
140 *
141 * CVS: ----------------------------------------------------------------------
142 * CVS: Issue number:
143 * CVS:   If this change addresses one or more issues,
144 * CVS:   then enter the issue number(s) here.
145 * CVS: Obtained from:
146 * CVS:   If this change has been taken from another system,
147 * CVS:   then name the system in this line, otherwise delete it.
148 * CVS: Submitted by:
149 * CVS:   If this code has been contributed to the project by someone else; i.e.,
150 * CVS:   they sent us a patch or a set of diffs, then include their name/email
151 * CVS:   address here. If this is your work then delete this line.
152 * CVS: Reviewed by:
153 * CVS:   If we are doing pre-commit code reviews and someone else has
154 * CVS:   reviewed your changes, include their name(s) here.
155 * CVS:   If you have not had it reviewed then delete this line.
156 *
157 * Revision 1.4  2006/06/19 06:47:27  mranga
158 * javadoc fixups
159 *
160 * Revision 1.3  2006/06/17 10:18:14  mranga
161 * Added some synchronization to the sequence number checking.
162 * Small javadoc fixups
163 *
164 * Revision 1.2  2006/06/16 15:26:28  mranga
165 * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
166 *
167 * Revision 1.1.1.1  2005/10/04 17:12:36  mranga
168 *
169 * Import
170 *
171 *
172 * Revision 1.6  2004/01/30 17:10:47  mranga
173 * Reviewed by:   mranga
174 * Server and user agent parser leave an extra Linefeed at the end of token.
175 *
176 * Revision 1.5  2004/01/27 13:52:11  mranga
177 * Reviewed by:   mranga
178 * Fixed server/user-agent parser.
179 * suppress sending ack to TU when retransFilter is enabled and ack is retransmitted.
180 *
181 * Revision 1.4  2004/01/22 13:26:32  sverker
182 * Issue number:
183 * Obtained from:
184 * Submitted by:  sverker
185 * Reviewed by:   mranga
186 *
187 * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags.
188 *
189 * CVS: ----------------------------------------------------------------------
190 * CVS: Issue number:
191 * CVS:   If this change addresses one or more issues,
192 * CVS:   then enter the issue number(s) here.
193 * CVS: Obtained from:
194 * CVS:   If this change has been taken from another system,
195 * CVS:   then name the system in this line, otherwise delete it.
196 * CVS: Submitted by:
197 * CVS:   If this code has been contributed to the project by someone else; i.e.,
198 * CVS:   they sent us a patch or a set of diffs, then include their name/email
199 * CVS:   address here. If this is your work then delete this line.
200 * CVS: Reviewed by:
201 * CVS:   If we are doing pre-commit code reviews and someone else has
202 * CVS:   reviewed your changes, include their name(s) here.
203 * CVS:   If you have not had it reviewed then delete this line.
204 *
205 */
206