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.krbError.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.codec.krbError.KrbErrorContainer; 030import org.apache.directory.shared.kerberos.messages.KrbError; 031import org.slf4j.Logger; 032import org.slf4j.LoggerFactory; 033 034 035/** 036 * The action used to read the KrbError etext 037 * 038 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 039 */ 040public class StoreEText extends GrammarAction<KrbErrorContainer> 041{ 042 /** The logger */ 043 private static final Logger LOG = LoggerFactory.getLogger( StoreEText.class ); 044 045 /** Speedup for logs */ 046 private static final boolean IS_DEBUG = LOG.isDebugEnabled(); 047 048 049 /** 050 * Instantiates a new AbstractReadRealm action. 051 */ 052 public StoreEText() 053 { 054 super( "KRB-ERROR etext" ); 055 } 056 057 058 /** 059 * {@inheritDoc} 060 */ 061 public final void action( KrbErrorContainer krbErrorContainer ) throws DecoderException 062 { 063 TLV tlv = krbErrorContainer.getCurrentTLV(); 064 065 // The Length should not be null 066 if ( tlv.getLength() == 0 ) 067 { 068 LOG.error( I18n.err( I18n.ERR_01308_ZERO_LENGTH_TLV ) ); 069 070 // This will generate a PROTOCOL_ERROR 071 throw new DecoderException( I18n.err( I18n.ERR_01309_EMPTY_TLV ) ); 072 } 073 074 // The value is the realm 075 BerValue value = tlv.getValue(); 076 String eText = Strings.utf8ToString( value.getData() ); 077 078 KrbError krbError = krbErrorContainer.getKrbError(); 079 krbError.setEText( eText ); 080 081 if ( IS_DEBUG ) 082 { 083 LOG.debug( "eText: {}", eText ); 084 } 085 086 krbErrorContainer.setGrammarEndAllowed( true ); 087 } 088}