| /* |
| * 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.kerberos.changepwd.messages; |
| |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.directory.server.kerberos.changepwd.exceptions.ChangePasswdErrorType; |
| import org.apache.directory.server.kerberos.changepwd.exceptions.ChangePasswordException; |
| import org.apache.directory.server.kerberos.protocol.codec.KerberosDecoder; |
| import org.apache.directory.api.asn1.EncoderException; |
| import org.apache.directory.shared.kerberos.exceptions.KerberosException; |
| import org.apache.directory.shared.kerberos.messages.ApReq; |
| import org.apache.directory.shared.kerberos.messages.KrbPriv; |
| |
| |
| /** |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class ChangePasswordRequest extends AbstractPasswordMessage |
| { |
| private ApReq authHeader; |
| private KrbPriv privateMessage; |
| |
| private short authHeaderLen; |
| private short privateMessageLen; |
| private short messageLength; |
| |
| public ChangePasswordRequest( ApReq authHeader, KrbPriv privateMessage ) |
| { |
| this( PVNO, authHeader, privateMessage ); |
| } |
| |
| |
| /** |
| * Creates a new instance of ChangePasswordRequest. |
| * |
| * @param versionNumber |
| * @param authHeader |
| * @param privateMessage |
| */ |
| public ChangePasswordRequest( short versionNumber, ApReq authHeader, KrbPriv privateMessage ) |
| { |
| super( versionNumber ); |
| |
| this.authHeader = authHeader; |
| this.privateMessage = privateMessage; |
| } |
| |
| |
| /** |
| * Returns the {@link ApReq}. |
| * |
| * @return The {@link ApReq}. |
| */ |
| public ApReq getAuthHeader() |
| { |
| return authHeader; |
| } |
| |
| |
| /** |
| * Returns the {@link PrivateMessage}. |
| * |
| * @return The {@link PrivateMessage}. |
| */ |
| public KrbPriv getPrivateMessage() |
| { |
| return privateMessage; |
| } |
| |
| |
| @Override |
| public short computeLength() |
| { |
| authHeaderLen = ( short ) authHeader.computeLength(); |
| privateMessageLen = ( short ) privateMessage.computeLength(); |
| |
| messageLength = ( short ) ( HEADER_LENGTH + authHeaderLen + privateMessageLen ); |
| |
| return messageLength; |
| } |
| |
| |
| @Override |
| public ByteBuffer encode( ByteBuffer buf ) throws EncoderException |
| { |
| buf.putShort( messageLength ); |
| buf.putShort( getVersionNumber() ); |
| |
| // Build application request bytes |
| buf.putShort( authHeaderLen ); |
| authHeader.encode( buf ); |
| |
| privateMessage.encode( buf ); |
| |
| return buf; |
| } |
| |
| /** |
| * Decodes a {@link ByteBuffer} into a {@link ChangePasswordRequest}. |
| * |
| * @param buf |
| * @return The {@link ChangePasswordRequest}. |
| * @throws IOException |
| */ |
| public static ChangePasswordRequest decode( ByteBuffer buf ) throws ChangePasswordException |
| { |
| try |
| { |
| short msgLen = buf.getShort(); // message length |
| |
| short pvno = buf.getShort(); |
| |
| short authHeaderLength = buf.getShort(); |
| |
| byte[] undecodedAuthHeader = new byte[authHeaderLength]; |
| buf.get( undecodedAuthHeader, 0, authHeaderLength ); |
| |
| ApReq authHeader = KerberosDecoder.decodeApReq( undecodedAuthHeader ); |
| |
| byte[] encodedPrivate = new byte[buf.remaining()]; |
| buf.get( encodedPrivate, 0, buf.remaining() ); |
| |
| KrbPriv privMessage = KerberosDecoder.decodeKrbPriv( encodedPrivate ); |
| |
| return new ChangePasswordRequest( pvno, authHeader, privMessage ); |
| } |
| catch( KerberosException e ) |
| { |
| throw new ChangePasswordException( ChangePasswdErrorType.KRB5_KPASSWD_MALFORMED, e ); |
| } |
| } |
| |
| } |