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 */ 020package org.apache.directory.shared.kerberos.codec.kdcReq.actions; 021 022 023import org.apache.directory.api.asn1.DecoderException; 024import org.apache.directory.api.asn1.ber.Asn1Decoder; 025import org.apache.directory.api.asn1.ber.grammar.GrammarAction; 026import org.apache.directory.api.asn1.ber.tlv.TLV; 027import org.apache.directory.api.i18n.I18n; 028import org.apache.directory.shared.kerberos.codec.kdcReq.KdcReqContainer; 029import org.apache.directory.shared.kerberos.codec.kdcReqBody.KdcReqBodyContainer; 030import org.apache.directory.shared.kerberos.components.KdcReq; 031import org.apache.directory.shared.kerberos.components.KdcReqBody; 032import org.slf4j.Logger; 033import org.slf4j.LoggerFactory; 034 035 036/** 037 * The action used to store the KDC_REQ-BODY 038 * 039 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 040 */ 041public class StoreKdcReqBody extends GrammarAction<KdcReqContainer> 042{ 043 /** The logger */ 044 private static final Logger LOG = LoggerFactory.getLogger( StoreKdcReqBody.class ); 045 046 /** Speedup for logs */ 047 private static final boolean IS_DEBUG = LOG.isDebugEnabled(); 048 049 050 /** 051 * Instantiates a new StoreKdcReqBody action. 052 */ 053 public StoreKdcReqBody() 054 { 055 super( "Stores the KDC-REQ-BODY" ); 056 } 057 058 059 /** 060 * {@inheritDoc} 061 */ 062 public void action( KdcReqContainer kdcReqContainer ) throws DecoderException 063 { 064 TLV tlv = kdcReqContainer.getCurrentTLV(); 065 066 // The Length should not be null 067 if ( tlv.getLength() == 0 ) 068 { 069 LOG.error( I18n.err( I18n.ERR_01308_ZERO_LENGTH_TLV ) ); 070 071 // This will generate a PROTOCOL_ERROR 072 throw new DecoderException( I18n.err( I18n.ERR_01309_EMPTY_TLV ) ); 073 } 074 075 // Now, let's decode the KDC-REQ-BODY 076 KdcReqBodyContainer kdcReqBodyContainer = new KdcReqBodyContainer( kdcReqContainer.getStream() ); 077 078 // Decode the KDC-REQ-BODY PDU 079 Asn1Decoder.decode( kdcReqContainer.getStream(), kdcReqBodyContainer ); 080 081 // Store the KDC-REQ-BODY in the container 082 KdcReqBody kdcReqBody = kdcReqBodyContainer.getKdcReqBody(); 083 KdcReq kdcReq = kdcReqContainer.getKdcReq(); 084 kdcReq.setKdcReqBody( kdcReqBody ); 085 086 // Update the parent 087 kdcReqContainer.updateParent(); 088 089 kdcReqContainer.setGrammarEndAllowed( true ); 090 091 if ( IS_DEBUG ) 092 { 093 LOG.debug( "KDC-REQ-BODY : {}", kdcReqBody ); 094 } 095 } 096}