showshutdowndispatchaction.java

这是linux下ssl vpn的实现程序

/*
 */
package com.sslexplorer.setup.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.Globals;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;

import com.sslexplorer.boot.Util;
import com.sslexplorer.core.CoreServlet;
import com.sslexplorer.core.CoreUtil;
import com.sslexplorer.core.actions.AuthenticatedDispatchAction;
import com.sslexplorer.policyframework.Permission;
import com.sslexplorer.policyframework.PolicyConstants;
import com.sslexplorer.policyframework.PolicyUtil;
import com.sslexplorer.security.SessionInfo;
import com.sslexplorer.security.forms.UserAccountForm;
import com.sslexplorer.setup.forms.ShutdownForm;

/**
 * Action to shut the server down.
 */
public class ShowShutdownDispatchAction extends AuthenticatedDispatchAction {

    final static Log log = LogFactory.getLog(ShowShutdownDispatchAction.class);

    /**
     * @param requiresAdministrator
     */
    public ShowShutdownDispatchAction() {
        super(PolicyConstants.SERVICE_CONTROL_RESOURCE_TYPE, new Permission[] { PolicyConstants.PERM_SHUTDOWN,
                        PolicyConstants.PERM_RESTART });
    }

    public ActionForward unspecified(ActionMapping mapping, ActionForm form, HttpServletRequest request,
                                     HttpServletResponse response) throws Exception {
        ShutdownForm shutdownForm = (ShutdownForm) form;

        /*
         * Hack to prevent getting in a loop if sending and message then
         * cancelling
         */
        String referer = CoreUtil.getReferer(request);
        if (referer.indexOf("/sendMessage.do") == -1) {
            shutdownForm.setReferer(referer);
        }
        
        int users = CoreServlet.getServlet().getLogonController().getActiveSessions().size();
        if (users > 1) {
            ActionMessages msgs = new ActionMessages();
            msgs.add(Globals.MESSAGE_KEY, new ActionMessage("shutdown.userWarning", new Integer(users)));
            saveMessages(request, msgs);
        }

        if (shutdownForm.getAlreadyPerforming()) {
            return new ActionForward("/cancelShutdown.do");
        } else {
            return mapping.findForward("display");
        }
    }

    public ActionForward shutdown(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
                    throws Exception {
        ShutdownForm shutdownForm = (ShutdownForm) form;
        shutdownForm.setReferer(CoreUtil.getReferer(request));
        if (shutdownForm.getShutdownType().equals(ShutdownForm.SHUTDOWN)) {
            PolicyUtil.checkPermission(PolicyConstants.SERVICE_CONTROL_RESOURCE_TYPE, PolicyConstants.PERM_SHUTDOWN, request);
            return mapping.findForward("shutdown");
        } else {
            PolicyUtil.checkPermission(PolicyConstants.SERVICE_CONTROL_RESOURCE_TYPE, PolicyConstants.PERM_RESTART, request);
            return mapping.findForward("restart");
        }
    }

    public int getNavigationContext(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
        return SessionInfo.MANAGEMENT_CONSOLE_CONTEXT | SessionInfo.SETUP_CONSOLE_CONTEXT;
    }
}