001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.action;
016    
017    import com.liferay.portal.kernel.security.auth.session.AuthenticatedSessionManagerUtil;
018    import com.liferay.portal.kernel.util.WebKeys;
019    import com.liferay.portal.struts.ActionConstants;
020    import com.liferay.portal.util.PortalUtil;
021    
022    import javax.servlet.http.HttpServletRequest;
023    import javax.servlet.http.HttpServletResponse;
024    
025    import org.apache.struts.action.Action;
026    import org.apache.struts.action.ActionForm;
027    import org.apache.struts.action.ActionForward;
028    import org.apache.struts.action.ActionMapping;
029    
030    /**
031     * @author Brian Wing Shun Chan
032     */
033    public class LogoutAction extends Action {
034    
035            @Override
036            public ActionForward execute(
037                            ActionMapping actionMapping, ActionForm actionForm,
038                            HttpServletRequest request, HttpServletResponse response)
039                    throws Exception {
040    
041                    try {
042                            AuthenticatedSessionManagerUtil.logout(request, response);
043    
044                            request.setAttribute(WebKeys.LOGOUT, true);
045    
046                            return actionMapping.findForward(ActionConstants.COMMON_REFERER);
047                    }
048                    catch (Exception e) {
049                            PortalUtil.sendError(e, request, response);
050    
051                            return null;
052                    }
053            }
054    
055    }