Files
SCM-Manager/plugins/scm-gravatar-plugin/src/main/java/sonia/scm/gravatar/MD5Util.java
2011-04-19 09:19:08 +02:00

117 lines
3.2 KiB
Java

/**
* Copyright (c) 2010, Sebastian Sdorra
* 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. Neither the name of SCM-Manager; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS 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 REGENTS OR 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.
*
* http://bitbucket.org/sdorra/scm-manager
*
*/
package sonia.scm.gravatar;
//~--- non-JDK imports --------------------------------------------------------
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import sonia.scm.util.Util;
//~--- JDK imports ------------------------------------------------------------
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/**
*
* @author Sebastian Sdorra
*/
public class MD5Util
{
/** the logger for MD5Util */
private static final Logger logger = LoggerFactory.getLogger(MD5Util.class);
//~--- methods --------------------------------------------------------------
/**
* Method description
*
*
* @param array
*
* @return
*/
public static String hex(byte[] array)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < array.length; ++i)
{
sb.append(Integer.toHexString((array[i] & 0xFF) | 0x100).substring(1, 3));
}
return sb.toString();
}
/**
* Method description
*
*
* @param message
*
* @return
*/
public static String md5Hex(String message)
{
String out = null;
if (Util.isNotEmpty(message))
{
message = message.toLowerCase().trim();
try
{
MessageDigest md = MessageDigest.getInstance("MD5");
out = hex(md.digest(message.getBytes("CP1252")));
}
catch (NoSuchAlgorithmException ex)
{
logger.error(ex.getMessage(), ex);
}
catch (UnsupportedEncodingException ex)
{
logger.error(ex.getMessage(), ex);
}
}
return out;
}
}