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.encKrbCredPart.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.encKrbCredPart.EncKrbCredPartContainer;
030import org.apache.directory.shared.kerberos.codec.krbCredInfo.KrbCredInfoContainer;
031import org.apache.directory.shared.kerberos.components.KrbCredInfo;
032import org.slf4j.Logger;
033import org.slf4j.LoggerFactory;
034
035
036/**
037 * Store EncKrbCredInfo ticket-info.
038 *
039 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
040 */
041public class StoreTicketInfo extends GrammarAction<EncKrbCredPartContainer>
042{
043    /** The logger */
044    private static final Logger LOG = LoggerFactory.getLogger( StoreTicketInfo.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( EncKrbCredPartContainer encKrbCredPartContainer ) throws DecoderException
054    {
055        TLV tlv = encKrbCredPartContainer.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 KrbCredInfo
067        // KrbCredInfo container
068        KrbCredInfoContainer ticketInfoContainer = new KrbCredInfoContainer();
069        ticketInfoContainer.setStream( encKrbCredPartContainer.getStream() );
070
071        encKrbCredPartContainer.rewind();
072
073        // decode KrbCredInfo
074        Asn1Decoder.decode( encKrbCredPartContainer.getStream(), ticketInfoContainer );
075
076        KrbCredInfo ticketInfo = ticketInfoContainer.getKrbCredInfo();
077        // add KrbCredInfo to the list of ticket-info
078        encKrbCredPartContainer.getEncKrbCredPart().addTicketInfo( ticketInfo );
079
080        // Update the expected length for the current TLV
081        tlv.setExpectedLength( tlv.getExpectedLength() - tlv.getLength() );
082
083        // Update the parent
084        encKrbCredPartContainer.updateParent();
085
086        encKrbCredPartContainer.setGrammarEndAllowed( true );
087
088        if ( IS_DEBUG )
089        {
090            LOG.debug( "KrbCredInfo : {}", ticketInfo );
091        }
092    }
093}