| /* |
| * 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.text.ParseException; |
| import java.util.List; |
| |
| import org.apache.directory.server.kerberos.shared.messages.components.Ticket; |
| import org.apache.directory.server.kerberos.shared.messages.value.PrincipalName; |
| 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.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 TicketEncoder |
| { |
| /** |
| * Encodes a {@link Ticket} into a its ASN.1 DER encoding. |
| * |
| * @param ticket |
| * @return The byte[] containing the ASN.1 DER encoding of the {@link Ticket}. |
| * @throws IOException |
| */ |
| public static byte[] encodeTicket( Ticket ticket ) throws IOException |
| { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| ASN1OutputStream aos = new ASN1OutputStream( baos ); |
| |
| aos.writeObject( encode( ticket ) ); |
| aos.close(); |
| |
| return baos.toByteArray(); |
| } |
| |
| |
| /** |
| * Ticket ::= [APPLICATION 1] SEQUENCE { |
| * tkt-vno[0] INTEGER, |
| * realm[1] Realm, |
| * sname[2] PrincipalName, |
| * enc-part[3] EncryptedData |
| * } |
| */ |
| protected static DERApplicationSpecific encode( Ticket ticket ) |
| { |
| DERSequence vector = new DERSequence(); |
| |
| vector.add( new DERTaggedObject( 0, DERInteger.valueOf( ticket.getVersionNumber() ) ) ); |
| vector.add( new DERTaggedObject( 1, DERGeneralString.valueOf( ticket.getRealm() ) ) ); |
| |
| try |
| { |
| vector.add( new DERTaggedObject( 2, PrincipalNameEncoder.encode( |
| new PrincipalName( ticket.getServerPrincipal().getName(), ticket.getServerPrincipal().getNameType() ) ) ) ); |
| } |
| catch ( ParseException pe ) |
| { |
| pe.printStackTrace(); |
| } |
| |
| vector.add( new DERTaggedObject( 3, EncryptedDataEncoder.encodeSequence( ticket.getEncPart() ) ) ); |
| |
| DERApplicationSpecific ticketSequence = null; |
| |
| try |
| { |
| ticketSequence = DERApplicationSpecific.valueOf( 1, vector ); |
| } |
| catch ( Exception e ) |
| { |
| e.printStackTrace(); |
| } |
| |
| return ticketSequence; |
| } |
| |
| |
| protected static DERSequence encodeSequence( Ticket[] tickets ) |
| { |
| DERSequence outerVector = new DERSequence(); |
| |
| for ( int ii = 0; ii < tickets.length; ii++ ) |
| { |
| DERSequence vector = new DERSequence(); |
| vector.add( encode( tickets[ii] ) ); |
| outerVector.add( vector ); |
| } |
| |
| return outerVector; |
| } |
| |
| protected static DERSequence encodeSequence( List<Ticket> tickets ) |
| { |
| DERSequence outerVector = new DERSequence(); |
| |
| for ( Ticket ticket:tickets ) |
| { |
| //DERSequence vector = new DERSequence(); |
| //vector.add( encode( ticket ) ); |
| outerVector.add( encode( ticket ) ); |
| } |
| |
| return outerVector; |
| } |
| } |