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4 Replies Latest reply: Nov 15, 2007 12:20 AM by 807600 RSS

Returning a variable after converting it into hexadecimal

807600 Newbie
Currently Being Moderated
I am trying to work on getting a username out of a cookie to pass into a JAAS login module but I'm sure that I have awry.

My code is:
import java.io.IOException;

import javax.servlet.*;
 import javax.servlet.http.*;

import javax.security.auth.login.LoginContext;
import javax.security.auth.login.LoginException;
import javax.security.auth.callback.CallbackHandler;

public class LoginServlet extends HttpServlet {

public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, java.io.IOException {
          
int i;
String name=null;
          
Cookie[] cookie = request.getCookies();
Cookie dough = null;
for (i=0; i<cookie.length; i++){
     if (cookie.getName().equals("WALOGIN")){
               dough = cookie[i];
     }
}
//Does it have any data in it?
if(dough!=null){
String s=dough.getValue();
if(s != null) {
     String[] values = s.split("-");
     name = values[0];
     } else {
System.out.println ("Cookie not present");
}//end else
}//end if

//Define the email part of the string in hex
for(int n=0; n<name.length(); n++){
     System.out.println();
     int ch=(int)name.charAt( n );
     String hexemail=Integer.toHexString( ch ); // String to Hex
     name = hexemail;
     }//email for

WebCallbackHandler webcall = new WebCallbackHandler();
I'm trying to find the cookie WALOGIN and then split it along the -. Once that is done, I'm attempting to transform the variable name into hexadecimal and pass it out so that the callback handler can find it and use it. However I think I've locked into the for loop.

I'd be grateful for any pointers as to how to get this to work properly. Thanks.