showavailableiprestrictionsdispatchaction.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.security.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.CoreAttributeConstants;
import com.sslexplorer.core.CoreEvent;
import com.sslexplorer.core.CoreEventConstants;
import com.sslexplorer.core.CoreServlet;
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.IpRestriction;
import com.sslexplorer.security.SessionInfo;
import com.sslexplorer.security.SystemDatabase;
import com.sslexplorer.security.forms.ShowAvailableIpRestrictionsForm;

/**
 * Implementation of
 * {@link com.sslexplorer.core.actions.AuthenticatedDispatchAction} that allows
 * an adminstrator to view all configured <i>IP Restrictions</i>
 * 
 * @author Brett Smith <a href="mailto: [e-mail]">&lt;[e-mail]&gt;</a>
 * @author Peter King <a href="mailto: [e-mail]">&lt;[e-mail]&gt;</a>
 * @version $Revision: 1.3 $
 */
public class ShowAvailableIpRestrictionsDispatchAction extends AuthenticatedDispatchAction {
    final static Log log = LogFactory.getLog(ShowAvailableRolesDispatchAction.class);

    /**
     * Constructor.
     * 
     */
    public ShowAvailableIpRestrictionsDispatchAction() {
        super(PolicyConstants.IP_RESTRICTIONS_RESOURCE_TYPE, new Permission[] { PolicyConstants.PERM_CREATE,
                        PolicyConstants.PERM_DELETE });
    }

    /*
     * (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;
    }

    /**
     * List all available restrictions
     * 
     * @param mapping mapping
     * @param form form
     * @param request request
     * @param response response
     * @return forward
     * @throws Exception on any error
     */
    public ActionForward list(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
                    throws Exception {
        try {
            SystemDatabase sdb = CoreServlet.getServlet().getSystemDatabase();
            IpRestriction[] restrictions = null;
            try {
                restrictions = sdb.getIpRestrictions();
            } catch (Exception e) {
                log.error("Failed to get available restrictions.", e);
                ActionMessages errs = new ActionMessages();
                errs.add(Globals.ERROR_KEY, new ActionMessage("availableRestrictions.cannotListRestrictions", Util
                                .getExceptionMessageChain(e)));
                saveErrors(request, errs);
                restrictions = new IpRestriction[0];
            }
            ((ShowAvailableIpRestrictionsForm) form).initialize(restrictions, request.getSession());
            ActionMessages msgs = new ActionMessages();
            if (msgs.size() > 0) {
                saveMessages(request, msgs);
            }
        } catch (Exception ex) {
            log.error("Failed to reset IP Restrictions form", ex);
        }
        return mapping.findForward("success");
    }

    /**
     * Delete a IP restrictions
     * 
     * @param mapping mapping
     * @param form form
     * @param request request
     * @param response response
     * @return forward
     * @throws Exception on any error
     */
    public ActionForward delete(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
                    throws Exception {
        PolicyUtil.checkPermission(PolicyConstants.ROLES_RESOURCE_TYPE, PolicyConstants.PERM_DELETE, request);
        String[] id = request.getParameterValues("ipaddress");
        if (id != null) {    
            SystemDatabase sdb = CoreServlet.getServlet().getSystemDatabase();
            IpRestriction[] restrictions = sdb.getIpRestrictions();
            for (int i = 0; i < id.length; i++) {
                String ipAdress = "";
                String ipPermission = "";
                try {
                    boolean ipDeleted = false;
                    // research the ip adress within the ip restriction list 
                    for (int j = 0; j < restrictions.length && !ipDeleted; j++) {
                        IpRestriction iprestriction = restrictions[j];
                        if(id[i].equals(iprestriction.getID())) {
                            ipAdress = iprestriction.getAddress();
                            ipPermission = iprestriction.getType();
                            ipDeleted = true;
                        }
                    }
                    sdb.removeIpRestriction(Integer.parseInt(id[i]));
                } catch (Exception e) {
                    throw e;
                }
            }
        }
        return mapping.findForward("refresh");
    }

    /**
     * Create a new restriction
     * 
     * @param mapping mapping
     * @param form form
     * @param request request
     * @param response response
     * @return forward
     * @throws Exception on any error
     */
    public ActionForward create(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
                    throws Exception {
        return mapping.findForward("create");
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.apache.struts.actions.DispatchAction#unspecified(org.apache.struts.action.ActionMapping,
     *      org.apache.struts.action.ActionForm,
     *      javax.servlet.http.HttpServletRequest,
     *      javax.servlet.http.HttpServletResponse)
     */
    public ActionForward unspecified(ActionMapping mapping, ActionForm form, HttpServletRequest request,
                                     HttpServletResponse response) throws Exception {
        return list(mapping, form, request, response);
    }

}