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.api.ldap.codec.actions.bindRequest; 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.IntegerDecoder; 027import org.apache.directory.api.asn1.ber.tlv.IntegerDecoderException; 028import org.apache.directory.api.asn1.ber.tlv.TLV; 029import org.apache.directory.api.i18n.I18n; 030import org.apache.directory.api.ldap.codec.api.LdapMessageContainer; 031import org.apache.directory.api.ldap.codec.decorators.BindRequestDecorator; 032import org.apache.directory.api.ldap.model.message.BindRequest; 033import org.apache.directory.api.util.Strings; 034import org.slf4j.Logger; 035import org.slf4j.LoggerFactory; 036 037 038/** 039 * The action used to store the BindRequest version. 040 * <pre> 041 * BindRequest ::= [APPLICATION 0] SEQUENCE { 042 * version INTEGER (1 .. 127), 043 * .... 044 * </pre> 045 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 046 */ 047public class StoreVersion extends GrammarAction<LdapMessageContainer<BindRequestDecorator>> 048{ 049 /** The logger */ 050 private static final Logger LOG = LoggerFactory.getLogger( StoreVersion.class ); 051 052 /** Speedup for logs */ 053 private static final boolean IS_DEBUG = LOG.isDebugEnabled(); 054 055 056 /** 057 * Instantiates a new action. 058 */ 059 public StoreVersion() 060 { 061 super( "Store BindRequest Version" ); 062 } 063 064 065 /** 066 * {@inheritDoc} 067 */ 068 public void action( LdapMessageContainer<BindRequestDecorator> container ) throws DecoderException 069 { 070 BindRequest bindRequestMessage = container.getMessage(); 071 072 // The current TLV should be a integer between 1 and 127 073 // We get it and store it in Version 074 TLV tlv = container.getCurrentTLV(); 075 076 BerValue value = tlv.getValue(); 077 078 try 079 { 080 int version = IntegerDecoder.parse( value, 1, 127 ); 081 082 if ( IS_DEBUG ) 083 { 084 LOG.debug( "Ldap version ", Integer.valueOf( version ) ); 085 } 086 087 bindRequestMessage.setVersion3( version == 3 ); 088 } 089 catch ( IntegerDecoderException ide ) 090 { 091 LOG.error( I18n 092 .err( I18n.ERR_04078, Strings.dumpBytes( value.getData() ), ide.getMessage() ) ); 093 094 // This will generate a PROTOCOL_ERROR 095 throw new DecoderException( ide.getMessage() ); 096 } 097 } 098}