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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.qpid.server.security.auth.database;
import org.apache.commons.codec.binary.Base64;
import org.apache.log4j.Logger;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class HashedUser implements PasswordPrincipal
{
private static final Logger _logger = Logger.getLogger(HashedUser.class);
private String _name;
private char[] _password;
private byte[] _encodedPassword = null;
private boolean _modified = false;
private boolean _deleted = false;
HashedUser(String[] data)
{
if (data.length != 2)
{
throw new IllegalArgumentException("User Data should be length 2, username, password");
}
_name = data[0];
byte[] encoded_password;
try
{
encoded_password = data[1].getBytes(Base64MD5PasswordFilePrincipalDatabase.DEFAULT_ENCODING);
}
catch (UnsupportedEncodingException e)
{
throw new RuntimeException("MD5 encoding not supported, even though the Java standard requires it",e);
}
Base64 b64 = new Base64();
byte[] decoded = b64.decode(encoded_password);
_encodedPassword = encoded_password;
_password = new char[decoded.length];
int index = 0;
for (byte c : decoded)
{
_password[index++] = (char) c;
}
}
public HashedUser(String name, char[] password)
{
_name = name;
setPassword(password,false);
}
public static byte[] getMD5(byte[] data)
{
MessageDigest md = null;
try
{
md = MessageDigest.getInstance("MD5");
}
catch (NoSuchAlgorithmException e)
{
throw new RuntimeException("MD5 not supported although Java compliance requires it");
}
for (byte b : data)
{
md.update(b);
}
return md.digest();
}
public String getName()
{
return _name;
}
public String toString()
{
return _name;
}
public char[] getPassword()
{
return _password;
}
public void setPassword(char[] password)
{
setPassword(password, false);
}
public void restorePassword(char[] password)
{
setPassword(password, true);
}
void setPassword(char[] password, boolean alreadyHashed)
{
if(alreadyHashed){
_password = password;
}
else
{
byte[] byteArray = new byte[password.length];
int index = 0;
for (char c : password)
{
byteArray[index++] = (byte) c;
}
byte[] MD5byteArray = getMD5(byteArray);
_password = new char[MD5byteArray.length];
index = 0;
for (byte c : MD5byteArray)
{
_password[index++] = (char) c;
}
}
_modified = true;
_encodedPassword = null;
}
public byte[] getEncodedPassword()
{
if (_encodedPassword == null)
{
encodePassword();
}
return _encodedPassword;
}
private void encodePassword()
{
byte[] byteArray = new byte[_password.length];
int index = 0;
for (char c : _password)
{
byteArray[index++] = (byte) c;
}
_encodedPassword = (new Base64()).encode(byteArray);
}
public boolean isModified()
{
return _modified;
}
public boolean isDeleted()
{
return _deleted;
}
public void delete()
{
_deleted = true;
}
public void saved()
{
_modified = false;
}
}
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