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Java > Open Source Codes > org > columba > ristretto > auth > mechanism > PlainMechanism


1 /* ***** BEGIN LICENSE BLOCK *****
2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
3  *
4  * The contents of this file are subject to the Mozilla Public License Version
5  * 1.1 (the "License"); you may not use this file except in compliance with
6  * the License. You may obtain a copy of the License at
7  * http://www.mozilla.org/MPL/
8  *
9  * Software distributed under the License is distributed on an "AS IS" basis,
10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11  * for the specific language governing rights and limitations under the
12  * License.
13  *
14  * The Original Code is Ristretto Mail API.
15  *
16  * The Initial Developers of the Original Code are
17  * Timo Stich and Frederik Dietz.
18  * Portions created by the Initial Developers are Copyright (C) 2004
19  * All Rights Reserved.
20  *
21  * Contributor(s):
22  *
23  * Alternatively, the contents of this file may be used under the terms of
24  * either the GNU General Public License Version 2 or later (the "GPL"), or
25  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
26  * in which case the provisions of the GPL or the LGPL are applicable instead
27  * of those above. If you wish to allow use of your version of this file only
28  * under the terms of either the GPL or the LGPL, and not to allow others to
29  * use your version of this file under the terms of the MPL, indicate your
30  * decision by deleting the provisions above and replace them with the notice
31  * and other provisions required by the GPL or the LGPL. If you do not delete
32  * the provisions above, a recipient may use your version of this file under
33  * the terms of any one of the MPL, the GPL or the LGPL.
34  *
35  * ***** END LICENSE BLOCK ***** */
36 package org.columba.ristretto.auth.mechanism;
37
38 import java.io.IOException JavaDoc;
39
40 import org.columba.ristretto.auth.AuthenticationException;
41 import org.columba.ristretto.auth.AuthenticationMechanism;
42 import org.columba.ristretto.auth.AuthenticationServer;
43
44 /**
45  * Implementation of the PLAIN SASL AuthenticationMechanism.
46  *
47  * @author Timo Stich <tstich@users.sourceforge.net>
48  */
49 public class PlainMechanism implements AuthenticationMechanism {
50
51     /**
52      * @see org.columba.ristretto.auth.AuthenticationMechanism#authenticate(org.columba.ristretto.auth.AuthenticationServer, java.lang.String, char[])
53      */
54     public void authenticate(
55         AuthenticationServer server,
56         String JavaDoc user,
57         char[] password)
58         throws IOException JavaDoc, AuthenticationException {
59             server.authReceive();
60         
61             byte[] userBytes = user.getBytes("UTF-8");
62             byte[] passwordBytes = new String JavaDoc(password).getBytes("UTF-8");
63             byte[] command = new byte[userBytes.length + passwordBytes.length + 2];
64             
65             command[0] = 0;
66             System.arraycopy(userBytes, 0, command, 1, userBytes.length);
67             command[userBytes.length+1] = 0;
68             System.arraycopy(passwordBytes, 0, command, userBytes.length+2, passwordBytes.length);
69             
70             server.authSend(command);
71     }
72 }
73
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