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From tay...@apache.org
Subject cvs commit: jakarta-jetspeed/src/java/org/apache/jetspeed/util Base64.java
Date Sat, 30 Mar 2002 00:13:31 GMT
taylor      02/03/29 16:13:31

  Added:       src/java/org/apache/jetspeed/util Base64.java
  Log:
  - utility for Base64 encoding in WebPagePortlet login support
  - contributed by David Powers
  
  Revision  Changes    Path
  1.1                  jakarta-jetspeed/src/java/org/apache/jetspeed/util/Base64.java
  
  Index: Base64.java
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" and
   *     "Apache Jetspeed" must not be used to endorse or promote products
   *    derived from this software without prior written permission. For
   *    written permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache" or
   *    "Apache Jetspeed", nor may "Apache" appear in their name, without
   *    prior written permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  package org.apache.jetspeed.util;
  
  import javax.mail.internet.MimeUtility;
  import java.io.BufferedReader;
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.InputStreamReader;
  
  /**
   * Simple Base64 string decoding function
   * @author Jason Borden <jborden@javasense.com>
   *
   * This class was copied from the jakarta-james project.
   * The only change made, besides comments, is the package name.
   * This class orgininated in org.apache.james.util as version 1.3
   * which was committed by darrel on 2002/01/18 02:48:39
   * 
   * $Id: Base64.java,v 1.1 2002/03/30 00:13:31 taylor Exp $
   * Committed on $Date: 2002/03/30 00:13:31 $ by: $Name:  $ 
   */
  
  public class Base64 {
  
      public static BufferedReader decode(String b64string) throws Exception {
          return new BufferedReader(
                     new InputStreamReader(
                         MimeUtility.decode(
                              new ByteArrayInputStream(
                                  b64string.getBytes()), "base64")));
      }
  
      public static String decodeAsString(String b64string) throws Exception {
          return  decode(b64string).readLine().trim();
      }
  
      public static ByteArrayOutputStream encode(String plaintext)
              throws Exception {
      ByteArrayOutputStream out = new ByteArrayOutputStream();
      byte[] in = plaintext.getBytes();
      ByteArrayOutputStream inStream = new ByteArrayOutputStream();
      inStream.write(in, 0, in.length);
      // pad
      if ((in.length % 3 ) == 1){
              inStream.write(0);
              inStream.write(0);
      } else if((in.length % 3 ) == 2){
              inStream.write(0);
      }
      inStream.writeTo( MimeUtility.encode(out, "base64")  );
          return out;
      }
  
      public static String encodeAsString(String plaintext) throws Exception {
          return  encode(plaintext).toString();
      }
  
  
  }
  
  
  
  

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