1   /**
2    * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.action;
24  
25  import com.liferay.portal.events.EventsProcessor;
26  import com.liferay.portal.kernel.util.StringPool;
27  import com.liferay.portal.kernel.util.Validator;
28  import com.liferay.portal.struts.ActionConstants;
29  import com.liferay.portal.util.CookieKeys;
30  import com.liferay.portal.util.PropsUtil;
31  
32  import javax.servlet.http.Cookie;
33  import javax.servlet.http.HttpServletRequest;
34  import javax.servlet.http.HttpServletResponse;
35  import javax.servlet.http.HttpSession;
36  import javax.servlet.jsp.PageContext;
37  
38  import org.apache.struts.action.Action;
39  import org.apache.struts.action.ActionForm;
40  import org.apache.struts.action.ActionForward;
41  import org.apache.struts.action.ActionMapping;
42  
43  /**
44   * <a href="LogoutAction.java.html"><b><i>View Source</i></b></a>
45   *
46   * @author Brian Wing Shun Chan
47   *
48   */
49  public class LogoutAction extends Action {
50  
51      public ActionForward execute(
52              ActionMapping mapping, ActionForm form, HttpServletRequest req,
53              HttpServletResponse res)
54          throws Exception {
55  
56          try {
57              HttpSession ses = req.getSession();
58  
59              EventsProcessor.process(PropsUtil.getArray(
60                  PropsUtil.LOGOUT_EVENTS_PRE), req, res);
61  
62              String domain = CookieKeys.getDomain(req);
63  
64              Cookie companyIdCookie = new Cookie(
65                  CookieKeys.COMPANY_ID, StringPool.BLANK);
66  
67              if (Validator.isNotNull(domain)) {
68                  companyIdCookie.setDomain(domain);
69              }
70  
71              companyIdCookie.setMaxAge(0);
72              companyIdCookie.setPath(StringPool.SLASH);
73  
74              Cookie idCookie = new Cookie(CookieKeys.ID, StringPool.BLANK);
75  
76              if (Validator.isNotNull(domain)) {
77                  idCookie.setDomain(domain);
78              }
79  
80              idCookie.setMaxAge(0);
81              idCookie.setPath(StringPool.SLASH);
82  
83              Cookie passwordCookie = new Cookie(
84                  CookieKeys.PASSWORD, StringPool.BLANK);
85  
86              if (Validator.isNotNull(domain)) {
87                  passwordCookie.setDomain(domain);
88              }
89  
90              passwordCookie.setMaxAge(0);
91              passwordCookie.setPath(StringPool.SLASH);
92  
93              CookieKeys.addCookie(res, companyIdCookie);
94              CookieKeys.addCookie(res, idCookie);
95              CookieKeys.addCookie(res, passwordCookie);
96  
97              try {
98                  ses.invalidate();
99              }
100             catch (Exception e) {
101             }
102 
103             EventsProcessor.process(PropsUtil.getArray(
104                 PropsUtil.LOGOUT_EVENTS_POST), req, res);
105 
106             return mapping.findForward(ActionConstants.COMMON_REFERER);
107         }
108         catch (Exception e) {
109             req.setAttribute(PageContext.EXCEPTION, e);
110 
111             return mapping.findForward(ActionConstants.COMMON_ERROR);
112         }
113     }
114 
115 }