/** * $Header: /home/coolserv/.cvs/coolserv/jive/source/taglib/com/coolservlets/forum/tags/LogoutTag.java,v 1.3 2000/12/17 14:15:08 gnielsen Exp $ * $Revision: 1.3 $ * $Date: 2000/12/17 14:15:08 $ * * Copyright (C) 2000 CoolServlets.com. All rights reserved. * * =================================================================== * The Apache Software License, Version 1.1 * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in *    the documentation and/or other materials provided with the *    distribution. * * 3. The end-user documentation included with the redistribution, *    if any, must include the following acknowledgment: *       "This product includes software developed by *        CoolServlets.com (http://www.coolservlets.com)." *    Alternately, this acknowledgment may appear in the software itself, *    if and wherever such third-party acknowledgments normally appear. * * 4. The names "Jive" and "CoolServlets.com" must not be used to *    endorse or promote products derived from this software without *    prior written permission. For written permission, please *    contact webmaster@coolservlets.com. * * 5. Products derived from this software may not be called "Jive", *    nor may "Jive" appear in their name, without prior written *    permission of CoolServlets.com. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED.  IN NO EVENT SHALL COOLSERVLETS.COM OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of CoolServlets.com. For more information * on CoolServlets.com, please see <http://www.coolservlets.com>. */package com.coolservlets.forum.tags;import javax.servlet.*;import javax.servlet.jsp.*;import javax.servlet.jsp.tagext.*;import javax.servlet.http.*;import com.coolservlets.forum.*;import com.coolservlets.forum.tags.*;/** * JSP Tag <b>logout</b>, logs out a Jive user and sets their Authorization * to an anonymous user. * <p> * The body of the tag is ignored. * <p> * JSP Tag Lib Descriptor * <p><pre> * &lt;name&gt;logout&lt;/name&gt; *   &lt;tagclass&gt;com.coolservlets.forum.tags.LogoutTag&lt;/tagclass&gt; *   &lt;bodycontent&gt;empty&lt;/bodycontent&gt; *   &lt;info&gt;Logout a user from Jive and sets their Authorization to an anonymous user.&lt;/info&gt; * </pre> * * @see JiveState * * @author Glenn Nielsen */public class LogoutTag extends TagSupport{  /**   * Logout a Jive user.   * <p>   * Ends the users session and saves their nextVisit Date to   * user extended property lastVisit.   *   * @return EVAL_PAGE   */  public final int doEndTag() throws JspException  {    // Get the users JiveState information    JiveState js = (JiveState)pageContext.getAttribute("jiveUserState",                PageContext.SESSION_SCOPE);    if( js == null )      throw new JspException("Jive logout tag, could not find JiveState");    // For a logged in user, set the Date of the next LastVisit    js.setNextVisit(pageContext);    js.saveLastVisit();    Authorization auth = AuthorizationFactory.getAnonymousAuthorization();    js.setAuthorization(auth);    js.setLoggedIn(false);    return EVAL_PAGE;  }}