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Java > Open Source Codes > org > riotfamily > riot > security > session > LoginInterceptor


1 /* ***** BEGIN LICENSE BLOCK *****
2  * Version: MPL 1.1
3  * The contents of this file are subject to the Mozilla Public License Version
4  * 1.1 (the "License"); you may not use this file except in compliance with
5  * the License. You may obtain a copy of the License at
6  * http://www.mozilla.org/MPL/
7  *
8  * Software distributed under the License is distributed on an "AS IS" basis,
9  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10  * for the specific language governing rights and limitations under the
11  * License.
12  *
13  * The Original Code is Riot.
14  *
15  * The Initial Developer of the Original Code is
16  * Neteye GmbH.
17  * Portions created by the Initial Developer are Copyright (C) 2006
18  * the Initial Developer. All Rights Reserved.
19  *
20  * Contributor(s):
21  * Felix Gnass [fgnass at neteye dot de]
22  *
23  * ***** END LICENSE BLOCK ***** */
24 package org.riotfamily.riot.security.session;
25
26 import javax.servlet.http.HttpServletRequest JavaDoc;
27 import javax.servlet.http.HttpServletResponse JavaDoc;
28
29 import org.riotfamily.riot.runtime.RiotRuntime;
30 import org.riotfamily.riot.runtime.RiotRuntimeAware;
31 import org.riotfamily.riot.security.auth.RiotUser;
32
33 /**
34  * HandlerInterceptor that sends a redirect to the login URL in case the
35  * user is not logged in.
36  *
37  * @author Felix Gnass [fgnass at neteye dot de]
38  */
39 public class LoginInterceptor extends AccessControlInterceptor
40         implements RiotRuntimeAware {
41     
42     private String JavaDoc loginUrl;
43     
44     private RiotRuntime runtime;
45     
46     public void setLoginUrl(String JavaDoc loginUrl) {
47         this.loginUrl = loginUrl;
48     }
49     
50     public void setRiotRuntime(RiotRuntime runtime) {
51         this.runtime = runtime;
52     }
53
54     /**
55      * Returns <code>true</code> if a principal is set, otherwise
56      * <code>false</code> is returned and a redirect to the login form is sent.
57      */
58     protected boolean isAuthorized(HttpServletRequest JavaDoc request,
59             HttpServletResponse JavaDoc response, RiotUser user) throws Exception JavaDoc {
60         
61         if (user != null) {
62             return true;
63         }
64         else {
65             response.sendRedirect(response.encodeRedirectURL(
66                     request.getContextPath() + runtime.getServletPrefix()
67                     + loginUrl));
68             
69             return false;
70         }
71     }
72     
73 }
74
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