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
021package org.apache.directory.shared.kerberos.codec.krbCred.actions;
022
023
024import org.apache.directory.api.asn1.DecoderException;
025import org.apache.directory.api.asn1.ber.Asn1Decoder;
026import org.apache.directory.api.asn1.ber.grammar.GrammarAction;
027import org.apache.directory.api.asn1.ber.tlv.TLV;
028import org.apache.directory.api.i18n.I18n;
029import org.apache.directory.shared.kerberos.codec.krbCred.KrbCredContainer;
030import org.apache.directory.shared.kerberos.codec.ticket.TicketContainer;
031import org.apache.directory.shared.kerberos.messages.Ticket;
032import org.slf4j.Logger;
033import org.slf4j.LoggerFactory;
034
035
036/**
037 * Store  tickets.
038 *
039 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
040 */
041public class StoreTickets extends GrammarAction<KrbCredContainer>
042{
043    /** The logger */
044    private static final Logger LOG = LoggerFactory.getLogger( StoreTickets.class );
045
046    /** Speedup for logs */
047    private static final boolean IS_DEBUG = LOG.isDebugEnabled();
048
049
050    /**
051     * {@inheritDoc}
052     */
053    public void action( KrbCredContainer krbCredContainer ) throws DecoderException
054    {
055        TLV tlv = krbCredContainer.getCurrentTLV();
056
057        // The Length should not be null
058        if ( tlv.getLength() == 0 )
059        {
060            LOG.error( I18n.err( I18n.ERR_01308_ZERO_LENGTH_TLV ) );
061
062            // This will generate a PROTOCOL_ERROR
063            throw new DecoderException( I18n.err( I18n.ERR_01309_EMPTY_TLV ) );
064        }
065
066        // decoder for Ticket
067        // Ticket container
068        TicketContainer ticketContainer = new TicketContainer( krbCredContainer.getStream() );
069
070        krbCredContainer.rewind();
071
072        // decode Ticket
073        Asn1Decoder.decode( krbCredContainer.getStream(), ticketContainer );
074
075        Ticket ticket = ticketContainer.getTicket();
076        // add Ticket to the list of tickets
077        krbCredContainer.getKrbCred().addTicket( ticket );
078
079        // Update the expected length for the current TLV
080        tlv.setExpectedLength( tlv.getExpectedLength() - tlv.getLength() );
081
082        // Update the parent
083        krbCredContainer.updateParent();
084
085        if ( IS_DEBUG )
086        {
087            LOG.debug( "Ticket : {}", ticket );
088        }
089    }
090}