001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied. See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 *
019 */
020 package org.apache.directory.server.changepw.io;
021
022
023 import java.io.IOException;
024 import java.nio.ByteBuffer;
025
026 import org.apache.directory.server.changepw.messages.ChangePasswordRequest;
027 import org.apache.directory.server.changepw.messages.ChangePasswordRequestModifier;
028 import org.apache.directory.server.kerberos.shared.io.decoder.ApplicationRequestDecoder;
029 import org.apache.directory.server.kerberos.shared.io.decoder.PrivateMessageDecoder;
030 import org.apache.directory.server.kerberos.shared.messages.ApplicationRequest;
031 import org.apache.directory.server.kerberos.shared.messages.application.PrivateMessage;
032
033
034 /**
035 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
036 * @version $Rev: 557127 $, $Date: 2007-07-18 06:02:51 +0300 (Wed, 18 Jul 2007) $
037 */
038 public class ChangePasswordRequestDecoder
039 {
040 /**
041 * Decodes a {@link ByteBuffer} into a {@link ChangePasswordRequest}.
042 *
043 * @param buf
044 * @return The {@link ChangePasswordRequest}.
045 * @throws IOException
046 */
047 public ChangePasswordRequest decode( ByteBuffer buf ) throws IOException
048 {
049 ChangePasswordRequestModifier modifier = new ChangePasswordRequestModifier();
050
051 buf.getShort(); // message length
052
053 modifier.setProtocolVersionNumber( buf.getShort() );
054
055 short authHeaderLength = buf.getShort();
056
057 byte[] undecodedAuthHeader = new byte[authHeaderLength];
058 buf.get( undecodedAuthHeader, 0, authHeaderLength );
059
060 ApplicationRequestDecoder decoder = new ApplicationRequestDecoder();
061 ApplicationRequest authHeader = decoder.decode( undecodedAuthHeader );
062
063 modifier.setAuthHeader( authHeader );
064
065 byte[] encodedPrivate = new byte[buf.remaining()];
066 buf.get( encodedPrivate, 0, buf.remaining() );
067
068 PrivateMessageDecoder privateDecoder = new PrivateMessageDecoder();
069 PrivateMessage privMessage = privateDecoder.decode( encodedPrivate );
070
071 modifier.setPrivateMessage( privMessage );
072
073 return modifier.getChangePasswordMessage();
074 }
075 }