shutdownvpnclientaction.java

这是linux下ssl vpn的实现程序

/*
 *  SSL-Explorer
 *
 *  Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2 of
 *  the License, or (at your option) any later version.
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public
 *  License along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
			
package com.sslexplorer.agent.actions;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.sslexplorer.boot.Util;
import com.sslexplorer.core.CoreServlet;
import com.sslexplorer.core.CoreUtil;
import com.sslexplorer.core.actions.AuthenticatedAction;
import com.sslexplorer.security.Constants;
import com.sslexplorer.security.SessionInfo;
import com.sslexplorer.security.VPNSession;

/**
 * Shuts down the VPN client.
 * 
 * @author Brett Smith <a href="mailto: [e-mail]">&lt;[e-mail]&gt;</a>
 */
public class ShutdownVPNClientAction extends AuthenticatedAction {

    static Log log = LogFactory.getLog(ShutdownVPNClientAction.class);

    /**
     * Constructor
     */
    public ShutdownVPNClientAction() {
        super();
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sslexplorer.core.actions.AuthenticatedAction#onExecute(org.apache.struts.action.ActionMapping,
     *      org.apache.struts.action.ActionForm,
     *      javax.servlet.http.HttpServletRequest,
     *      javax.servlet.http.HttpServletResponse)
     */
    public ActionForward onExecute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
                    throws Exception {

        VPNSession session = null;
        session = CoreServlet.getServlet().getLogonController().getPrimaryVPNSession(
                        CoreServlet.getServlet().getLogonController().getVPNSessionsByLogon(
                                        (String) request.getSession().getAttribute(Constants.LOGON_TICKET)));
        if (session == null) {
            throw new Exception("No VPN session.");
        }
        if(!session.isValid()) {
            log.error("VPN session is invalid. De-registering");
            try {
                CoreServlet.getServlet().getLogonController().deregisterVPNClient(session);
            }
            catch(Exception e) {
                log.error("Failed to de-register.", e);
            }
            return new ActionForward(CoreUtil.getReferer(request));
        }
        session.invalidate();
        String path = request.getParameter("path");
        String link = "http://localhost:" + session.getClientPort() + "/shutdown?path=" + Util.urlEncode("/waitForVPNClientDeregister.do?path=" + ( path == null ? CoreUtil.getReferer(request) : path) );
        if (log.isInfoEnabled())
        	log.info("Informing SSL-Explorer Agent to shutdown (" + link + ")");
        ActionForward fwd = new ActionForward(link, true);
        return fwd;
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sslexplorer.core.actions.CoreAction#getNavigationContext(org.apache.struts.action.ActionMapping,
     *      org.apache.struts.action.ActionForm,
     *      javax.servlet.http.HttpServletRequest,
     *      javax.servlet.http.HttpServletResponse)
     */
    public int getNavigationContext(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
        return SessionInfo.MANAGEMENT_CONSOLE_CONTEXT | SessionInfo.USER_CONSOLE_CONTEXT;
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sslexplorer.core.actions.AuthenticatedAction#requiresProfile()
     */
    protected boolean requiresProfile() {
        return false;
    }

    /*
     * Ignore session lock as we want to be able logoff from the 
     * session lock page.
     * 
     * @return ignore session locks
     */
    protected boolean isIgnoreSessionLock() {
        return true;
    }

}