View Javadoc
1   /*
2    *   Licensed to the Apache Software Foundation (ASF) under one
3    *   or more contributor license agreements.  See the NOTICE file
4    *   distributed with this work for additional information
5    *   regarding copyright ownership.  The ASF licenses this file
6    *   to you under the Apache License, Version 2.0 (the
7    *   "License"); you may not use this file except in compliance
8    *   with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   *   Unless required by applicable law or agreed to in writing,
13   *   software distributed under the License is distributed on an
14   *   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *   KIND, either express or implied.  See the License for the
16   *   specific language governing permissions and limitations
17   *   under the License.
18   *
19   */
20  
21  package org.apache.directory.shared.kerberos.codec.encKrbCredPart.actions;
22  
23  
24  import org.apache.directory.api.asn1.DecoderException;
25  import org.apache.directory.api.asn1.ber.Asn1Decoder;
26  import org.apache.directory.api.asn1.ber.grammar.GrammarAction;
27  import org.apache.directory.api.asn1.ber.tlv.TLV;
28  import org.apache.directory.api.i18n.I18n;
29  import org.apache.directory.shared.kerberos.codec.encKrbCredPart.EncKrbCredPartContainer;
30  import org.apache.directory.shared.kerberos.codec.krbCredInfo.KrbCredInfoContainer;
31  import org.apache.directory.shared.kerberos.components.KrbCredInfo;
32  import org.slf4j.Logger;
33  import org.slf4j.LoggerFactory;
34  
35  
36  /**
37   * Store EncKrbCredInfo ticket-info.
38   *
39   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
40   */
41  public class StoreTicketInfo extends GrammarAction<EncKrbCredPartContainer>
42  {
43      /** The logger */
44      private static final Logger LOG = LoggerFactory.getLogger( StoreTicketInfo.class );
45  
46      /** Speedup for logs */
47      private static final boolean IS_DEBUG = LOG.isDebugEnabled();
48  
49  
50      /**
51       * {@inheritDoc}
52       */
53      public void action( EncKrbCredPartContainer encKrbCredPartContainer ) throws DecoderException
54      {
55          TLV tlv = encKrbCredPartContainer.getCurrentTLV();
56  
57          // The Length should not be null
58          if ( tlv.getLength() == 0 )
59          {
60              LOG.error( I18n.err( I18n.ERR_01308_ZERO_LENGTH_TLV ) );
61  
62              // This will generate a PROTOCOL_ERROR
63              throw new DecoderException( I18n.err( I18n.ERR_01309_EMPTY_TLV ) );
64          }
65  
66          // decoder for KrbCredInfo
67          // KrbCredInfo container
68          KrbCredInfoContainerkrbCredInfo/KrbCredInfoContainer.html#KrbCredInfoContainer">KrbCredInfoContainer ticketInfoContainer = new KrbCredInfoContainer();
69          ticketInfoContainer.setStream( encKrbCredPartContainer.getStream() );
70  
71          encKrbCredPartContainer.rewind();
72  
73          // decode KrbCredInfo
74          Asn1Decoder.decode( encKrbCredPartContainer.getStream(), ticketInfoContainer );
75  
76          KrbCredInfo ticketInfo = ticketInfoContainer.getKrbCredInfo();
77          // add KrbCredInfo to the list of ticket-info
78          encKrbCredPartContainer.getEncKrbCredPart().addTicketInfo( ticketInfo );
79  
80          // Update the expected length for the current TLV
81          tlv.setExpectedLength( tlv.getExpectedLength() - tlv.getLength() );
82  
83          // Update the parent
84          encKrbCredPartContainer.updateParent();
85  
86          encKrbCredPartContainer.setGrammarEndAllowed( true );
87  
88          if ( IS_DEBUG )
89          {
90              LOG.debug( "KrbCredInfo : {}", ticketInfo );
91          }
92      }
93  }