| /* |
| * 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.shared.io.encoder; |
| |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.directory.server.kerberos.shared.messages.ErrorMessage; |
| import org.apache.directory.shared.asn1.der.ASN1OutputStream; |
| import org.apache.directory.shared.asn1.der.DERApplicationSpecific; |
| import org.apache.directory.shared.asn1.der.DERGeneralString; |
| import org.apache.directory.shared.asn1.der.DERInteger; |
| import org.apache.directory.shared.asn1.der.DEROctetString; |
| import org.apache.directory.shared.asn1.der.DERSequence; |
| import org.apache.directory.shared.asn1.der.DERTaggedObject; |
| |
| |
| /** |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| * @version $Rev$, $Date$ |
| */ |
| public class ErrorMessageEncoder |
| { |
| /** |
| * Encodes an {@link ErrorMessage} into a {@link ByteBuffer}. |
| * |
| * @param message |
| * @param out |
| * @throws IOException |
| */ |
| public void encode( ErrorMessage message, ByteBuffer out ) throws IOException |
| { |
| ASN1OutputStream aos = new ASN1OutputStream( out ); |
| |
| DERSequence errorReply = encodeErrorMessageSequence( message ); |
| aos.writeObject( DERApplicationSpecific.valueOf( message.getMessageType().getOrdinal(), errorReply ) ); |
| |
| aos.close(); |
| } |
| |
| |
| /** |
| * Encodes an {@link ErrorMessage} into a byte array. |
| * |
| * @param message |
| * @return The byte array. |
| * @throws IOException |
| */ |
| public byte[] encode( ErrorMessage message ) throws IOException |
| { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| ASN1OutputStream aos = new ASN1OutputStream( baos ); |
| |
| DERSequence errorReply = encodeErrorMessageSequence( message ); |
| aos.writeObject( DERApplicationSpecific.valueOf( message.getMessageType().getOrdinal(), errorReply ) ); |
| |
| aos.close(); |
| |
| return baos.toByteArray(); |
| } |
| |
| |
| private DERSequence encodeErrorMessageSequence( ErrorMessage message ) |
| { |
| DERSequence sequence = new DERSequence(); |
| |
| sequence.add( new DERTaggedObject( 0, DERInteger.valueOf( message.getProtocolVersionNumber() ) ) ); |
| |
| sequence.add( new DERTaggedObject( 1, DERInteger.valueOf( message.getMessageType().getOrdinal() ) ) ); |
| |
| if ( message.getClientTime() != null ) |
| { |
| sequence.add( new DERTaggedObject( 2, KerberosTimeEncoder.encode( message.getClientTime() ) ) ); |
| } |
| |
| if ( message.getClientMicroSecond() != null ) |
| { |
| sequence.add( new DERTaggedObject( 3, DERInteger.valueOf( message.getClientMicroSecond().intValue() ) ) ); |
| } |
| |
| sequence.add( new DERTaggedObject( 4, KerberosTimeEncoder.encode( message.getServerTime() ) ) ); |
| |
| sequence.add( new DERTaggedObject( 5, DERInteger.valueOf( message.getServerMicroSecond() ) ) ); |
| |
| sequence.add( new DERTaggedObject( 6, DERInteger.valueOf( message.getErrorCode() ) ) ); |
| |
| if ( message.getClientPrincipal() != null ) |
| { |
| sequence.add( new DERTaggedObject( 7, DERGeneralString.valueOf( message.getClientPrincipal().getRealm() |
| .toString() ) ) ); |
| } |
| |
| if ( message.getClientPrincipal() != null ) |
| { |
| sequence.add( new DERTaggedObject( 8, PrincipalNameEncoder.encode( message.getClientPrincipal() ) ) ); |
| } |
| |
| sequence.add( new DERTaggedObject( 9, DERGeneralString.valueOf( message.getServerPrincipal().getRealm() ) ) ); |
| |
| sequence.add( new DERTaggedObject( 10, PrincipalNameEncoder.encode( message.getServerPrincipal() ) ) ); |
| |
| if ( message.getExplanatoryText() != null ) |
| { |
| sequence.add( new DERTaggedObject( 11, DERGeneralString.valueOf( message.getExplanatoryText() ) ) ); |
| } |
| |
| if ( message.getExplanatoryData() != null ) |
| { |
| sequence.add( new DERTaggedObject( 12, new DEROctetString( message.getExplanatoryData() ) ) ); |
| } |
| |
| return sequence; |
| } |
| } |