/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.test;

import org.jboss.security.Util;

/** A utility program for generating password hashes given the hashAlgorithm,
hashEncoding, and hashCharset options used by the UsernamePasswordLoginModule.
The command line usage is:
PasswordHasher [hashAlgorithm [hashEncoding [hashCharset]]] password

 @author Scott.Stark@jboss.org
 @version $Revision: 1.2.4.1 $
 */
public class PasswordHasher
{
   static String usage = "Usage: [hashAlgorithm [hashEncoding [hashCharset]]] password";

   /** @param args the command line arguments
    *Usage: [hashAlgorithm [hashEncoding [hashCharset]]] password
    */
   public static void main(String[] args)
   {
      String hashAlgorithm = "MD5";
      String hashEncoding = "base64";
      String hashCharset = null;
      String password = null;
      if( args.length == 0 || args[0].startsWith("-h") )
         throw new IllegalStateException(usage);
      switch( args.length )
      {
         case 4:
            hashAlgorithm = args[0];
            hashEncoding = args[1];
            hashCharset = args[2];
            password = args[3];
         break;
         case 3:
            hashAlgorithm = args[0];
            hashEncoding = args[1];
            password = args[2];
         break;
         case 2:
            hashAlgorithm = args[0];
            password = args[1];
         break;
         case 1:
            password = args[0];
         break;
      }
      String passwordHash = Util.createPasswordHash(hashAlgorithm, hashEncoding,
         hashCharset, null, password);
      System.out.println("passwordHash = "+passwordHash);
   }

}
