1 /*
2 * $Source$
3 * $Revision$
4 *
5 * Copyright (C) 2000 William Chesters
6 *
7 * Part of Melati (http://melati.org), a framework for the rapid
8 * development of clean, maintainable web applications.
9 *
10 * Melati is free software; Permission is granted to copy, distribute
11 * and/or modify this software under the terms either:
12 *
13 * a) the GNU General Public License as published by the Free Software
14 * Foundation; either version 2 of the License, or (at your option)
15 * any later version,
16 *
17 * or
18 *
19 * b) any version of the Melati Software License, as published
20 * at http://melati.org
21 *
22 * You should have received a copy of the GNU General Public License and
23 * the Melati Software License along with this program;
24 * if not, write to the Free Software Foundation, Inc.,
25 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the
26 * GNU General Public License and visit http://melati.org to obtain the
27 * Melati Software License.
28 *
29 * Feel free to contact the Developers of Melati (http://melati.org),
30 * if you would like to work out a different arrangement than the options
31 * outlined here. It is our intention to allow Melati to be used by as
32 * wide an audience as possible.
33 *
34 * This program is distributed in the hope that it will be useful,
35 * but WITHOUT ANY WARRANTY; without even the implied warranty of
36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
37 * GNU General Public License for more details.
38 *
39 * Contact details for copyright holder:
40 *
41 * William Chesters <williamc At paneris.org>
42 * http://paneris.org/~williamc
43 * Obrechtstraat 114, 2517VX Den Haag, The Netherlands
44 */
45
46 package org.melati.login;
47
48 import org.melati.servlet.TemplateServlet;
49 import org.melati.Melati;
50 import org.melati.template.ServletTemplateContext;
51
52 /**
53 * A servlet which handles user logins.
54 */
55 public class Login extends TemplateServlet {
56
57 private static final long serialVersionUID = 1L;
58
59 /** Parameters,in GET format, of triggering request, so we can reconstruct it. */
60 public static final String
61 TRIGGERING_REQUEST_PARAMETERS =
62 "org.melati.login.Login.triggeringRequestParameters";
63 /** The triggering exception. */
64 public static final String
65 TRIGGERING_EXCEPTION =
66 "org.melati.login.Login.triggeringException";
67
68 LoginHandler loginHandler = null;
69
70 protected LoginHandler getLoginHandler() {
71 if (loginHandler == null)
72 loginHandler = new LoginHandler(this);
73 return loginHandler;
74 }
75
76 protected String doTemplateRequest(Melati melati,
77 ServletTemplateContext templateContext)
78 throws Exception {
79 return getLoginHandler().doTemplateRequest(melati, templateContext);
80 }
81
82 }