/*
 * Code by George Kichukov for SAS 10/27/2002
 * This class is used to check session varibale
 */
 
package utilities;

import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class CheckSession extends HttpServlet
{
	private String errorTarget = "/admin/index.jsp";

        public void init(ServletConfig config) throws ServletException
        {
                super.init(config);
        }      
        

        public void doGet(HttpServletRequest request,
                          HttpServletResponse response)
                          throws ServletException, IOException
        {

                // If it is a get request forward to doPost()
                doPost(request, response);
        }


        public void doPost(HttpServletRequest request,
                                HttpServletResponse response)
                                throws ServletException, IOException
        {

	        HttpSession session = request.getSession(true);
         
                String name = (String)session.getValue("USER");

                if (name==null)
                
                {
                      // Forward the request to the target named
                        ServletContext context = getServletContext();
                        RequestDispatcher dispatcher = context.getRequestDispatcher(errorTarget + "?er=Login Error. Access Denied!");
                        dispatcher.forward(request, response);              
                }
        }
}