You have been authorized

/**
 * @author: Vladislav Kamensky
 */
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;

public class AuthorizeServlet extends HttpServlet {
	private String authUserName;
	private String authUserPsswd;
public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
try{		
	if(getAuthorizedParameters(req) && authUserName.equals("modano") && authUserPsswd.equals("modano")){
		res.setContentType("text/html");
		PrintWriter out = res.getWriter();
		out.println("<HTML>");
		out.println("<HEAD><TITLE>AbntPasswordServlet</TITLE></HEAD>");
		out.println("<CENTER>");
	    out.println("<h1>You have been authorized</h1>");
	    out.println("</CENTER>");
		out.println("</BODY></HTML>");  	
	  	}else{
		  	res.setStatus(res.SC_UNAUTHORIZED);
			res.setHeader("WWW-Authenticate","Basic realm=\"testarea\"");
	  	}
	}catch(Throwable theException){
		// uncomment the following line when unexpected exceptions
		// are occuring to aid in debugging the problem.
		//theException.printStackTrace();
	}
	doPost(req,res);
}
public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
try{	
	
}catch(Exception ex){
	
}	
}
 /**
 * @author: Igor Maznitsa
 */
public boolean getAuthorizedParameters(HttpServletRequest req) {
	sun.misc.BASE64Decoder bs64dec = new sun.misc.BASE64Decoder();
	boolean result = true;
	String NamePassword = null;
	String auth_string = req.getHeader("Authorization");
	if (auth_string==null) return false;              
	StringTokenizer st = new StringTokenizer(auth_string," ");
	String scheme = null;
	try{
		scheme = st.nextToken();  
	}catch (NoSuchElementException e){
		scheme = "";  
		result = false;
	}
	try{
		if (scheme.equalsIgnoreCase("BASIC")){  
			NamePassword = st.nextToken();  
  	    	NamePassword = new String(bs64dec.decodeBuffer(NamePassword)); 
		}else NamePassword = st.nextToken();
	}catch (NoSuchElementException e){
		NamePassword  = "";  
		result = false;
	}catch (IOException e){
		NamePassword  = ""; 
		result = false;
	}               
	st = null;
	st = new StringTokenizer(NamePassword,":");
	try{
		authUserName = st.nextToken();  
	}catch (NoSuchElementException e){
		authUserName = null;  
		result = false;
	}
	try{
		this.authUserPsswd = st.nextToken();   
	}catch (NoSuchElementException e){
		this.authUserPsswd = null; 
		result = false;
	}
   return result;
}
public void init() {
	System.out.println("In AbntPasswordServlet init");
}
}