Source for gnu.javax.crypto.sasl.SaslUtil

   1: /* SaslUtil.java --
   2:    Copyright (C) 2003, 2006 Free Software Foundation, Inc.
   3: 
   4: This file is a part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2 of the License, or (at
   9: your option) any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; if not, write to the Free Software
  18: Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
  19: USA
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version.  */
  37: 
  38: 
  39: package gnu.javax.crypto.sasl;
  40: 
  41: import gnu.java.security.util.Util;
  42: 
  43: import java.security.MessageDigest;
  44: 
  45: /**
  46:  * Utility methods for SASL-related classes.
  47:  */
  48: public class SaslUtil
  49: {
  50:   private SaslUtil()
  51:   {
  52:     super();
  53:   }
  54: 
  55:   public static final boolean validEmailAddress(String address)
  56:   {
  57:     // need to do better than this
  58:     return (address.indexOf("@") != -1);
  59:   }
  60: 
  61:   /** Returns the context of the designated hash as a string. */
  62:   public static final String dump(MessageDigest md)
  63:   {
  64:     String result;
  65:     try
  66:       {
  67:         result = Util.dumpString(((MessageDigest) md.clone()).digest());
  68:       }
  69:     catch (Exception ignored)
  70:       {
  71:         result = "...";
  72:       }
  73:     return result;
  74:   }
  75: }