LogoutServlet


1   /*
2    * LogoutServlet.java
3    *
4    * Version: $Revision: 1.5 $
5    *
6    * Date: $Date: 2005/04/20 14:22:38 $
7    *
8    * Copyright (c) 2002-2005, Hewlett-Packard Company and Massachusetts
9    * Institute of Technology.  All rights reserved.
10   *
11   * Redistribution and use in source and binary forms, with or without
12   * modification, are permitted provided that the following conditions are
13   * met:
14   *
15   * - Redistributions of source code must retain the above copyright
16   * notice, this list of conditions and the following disclaimer.
17   *
18   * - Redistributions in binary form must reproduce the above copyright
19   * notice, this list of conditions and the following disclaimer in the
20   * documentation and/or other materials provided with the distribution.
21   *
22   * - Neither the name of the Hewlett-Packard Company nor the name of the
23   * Massachusetts Institute of Technology nor the names of their
24   * contributors may be used to endorse or promote products derived from
25   * this software without specific prior written permission.
26   *
27   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28   * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
30   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31   * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
32   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
33   * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
34   * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
35   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
36   * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
37   * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
38   * DAMAGE.
39   */
40  package org.dspace.app.webui.servlet;
41  
42  import java.io.IOException  ;
43  import java.sql.SQLException  ;
44  
45  import javax.servlet.ServletException  ;
46  import javax.servlet.http.HttpServletRequest  ;
47  import javax.servlet.http.HttpServletResponse  ;
48  
49  import org.apache.log4j.Logger;
50  import org.dspace.app.webui.util.Authenticate;
51  import org.dspace.app.webui.util.JSPManager;
52  import org.dspace.authorize.AuthorizeException;
53  import org.dspace.core.Context;
54  import org.dspace.core.LogManager;
55  
56  /**
57   * Servlet that logs out any current user if invoked.
58   * 
59   * @author Robert Tansley
60   * @version $Revision: 1.5 $
61   */
62  public class LogoutServlet extends DSpaceServlet
63  {
64      /** log4j logger */
65      private static Logger log = Logger.getLogger(LogoutServlet.class);
66  
67      protected void doDSGet(Context context, HttpServletRequest   request,
68              HttpServletResponse   response) throws ServletException  , IOException  ,
69              SQLException  , AuthorizeException
70      {
71          log.info(LogManager.getHeader(context, "logout", ""));
72  
73          Authenticate.loggedOut(context, request);
74  
75          // Display logged out message
76          JSPManager.showJSP(request, response, "/login/logged-out.jsp");
77      }
78  }
79
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