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.kdcReqBody.actions; 021 022 023import org.apache.directory.api.asn1.DecoderException; 024import org.apache.directory.api.asn1.ber.grammar.GrammarAction; 025import org.apache.directory.api.asn1.ber.tlv.BerValue; 026import org.apache.directory.api.asn1.ber.tlv.TLV; 027import org.apache.directory.api.i18n.I18n; 028import org.apache.directory.api.util.Strings; 029import org.apache.directory.shared.kerberos.KerberosTime; 030import org.apache.directory.shared.kerberos.codec.kdcReqBody.KdcReqBodyContainer; 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 from KerberosTime 038 * 039 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 040 */ 041public class StoreFrom extends GrammarAction<KdcReqBodyContainer> 042{ 043 /** The logger */ 044 private static final Logger LOG = LoggerFactory.getLogger( StoreFrom.class ); 045 046 /** Speedup for logs */ 047 private static final boolean IS_DEBUG = LOG.isDebugEnabled(); 048 049 050 /** 051 * Instantiates a new StoreFrom action. 052 */ 053 public StoreFrom() 054 { 055 super( "Stores the From" ); 056 } 057 058 059 /** 060 * {@inheritDoc} 061 */ 062 public void action( KdcReqBodyContainer kdcReqBodyContainer ) throws DecoderException 063 { 064 TLV tlv = kdcReqBodyContainer.getCurrentTLV(); 065 066 // The Length should not be null and should be 15 067 if ( tlv.getLength() != 15 ) 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 KdcReqBody kdcReqBody = kdcReqBodyContainer.getKdcReqBody(); 076 077 // The value is the KerberosTime 078 BerValue value = tlv.getValue(); 079 String date = Strings.utf8ToString( value.getData() ); 080 081 try 082 { 083 KerberosTime from = new KerberosTime( date ); 084 kdcReqBody.setFrom( from ); 085 086 if ( IS_DEBUG ) 087 { 088 LOG.debug( "From : {}", from ); 089 } 090 } 091 catch ( IllegalArgumentException iae ) 092 { 093 LOG.error( I18n.err( I18n.ERR_01308_ZERO_LENGTH_TLV ) ); 094 095 // This will generate a PROTOCOL_ERROR 096 throw new DecoderException( I18n.err( I18n.ERR_01309_EMPTY_TLV ) ); 097 } 098 } 099}