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 05:02:51 +0200 (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 }