| /* |
| * 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.directory.server.changepw.io; |
| |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.directory.server.changepw.messages.ChangePasswordError; |
| import org.apache.directory.server.changepw.messages.ChangePasswordErrorModifier; |
| import org.apache.directory.server.kerberos.shared.io.decoder.ErrorMessageDecoder; |
| import org.apache.directory.server.kerberos.shared.messages.KerberosError; |
| |
| |
| /** |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| * @version $Rev$, $Date$ |
| */ |
| public class ChangePasswordErrorDecoder |
| { |
| private static final int HEADER_LENGTH = 6; |
| |
| |
| /** |
| * Decodes a {@link ByteBuffer} into a {@link ChangePasswordError}. |
| * |
| * @param buf |
| * @return The {@link ChangePasswordError}. |
| * @throws IOException |
| */ |
| public ChangePasswordError decode( ByteBuffer buf ) throws IOException |
| { |
| ChangePasswordErrorModifier modifier = new ChangePasswordErrorModifier(); |
| |
| short messageLength = buf.getShort(); |
| modifier.setMessageLength( messageLength ); |
| |
| modifier.setProtocolVersionNumber( buf.getShort() ); |
| |
| // AP_REQ length will be 0 for error messages |
| modifier.setAuthHeaderLength( buf.getShort() ); |
| |
| int errorLength = messageLength - HEADER_LENGTH; |
| |
| byte[] errorBytes = new byte[errorLength]; |
| |
| buf.get( errorBytes ); |
| ByteBuffer errorBuffer = ByteBuffer.wrap( errorBytes ); |
| |
| ErrorMessageDecoder errorDecoder = new ErrorMessageDecoder(); |
| KerberosError errorMessage = errorDecoder.decode( errorBuffer ); |
| |
| modifier.setErrorMessage( errorMessage ); |
| |
| return modifier.getChangePasswordError(); |
| } |
| } |