| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| |
| package org.apache.directory.shared.kerberos.components; |
| |
| |
| import java.nio.BufferOverflowException; |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.directory.api.asn1.Asn1Object; |
| import org.apache.directory.api.asn1.EncoderException; |
| import org.apache.directory.api.asn1.ber.tlv.BerValue; |
| import org.apache.directory.api.asn1.ber.tlv.TLV; |
| import org.apache.directory.api.asn1.ber.tlv.UniversalTag; |
| import org.apache.directory.api.util.Strings; |
| import org.apache.directory.server.i18n.I18n; |
| import org.apache.directory.shared.kerberos.KerberosConstants; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * TYPED-DATA ::= SEQUENCE SIZE (1..MAX) OF SEQUENCE { |
| * data-type [0] Int32, |
| * data-value [1] OCTET STRING OPTIONAL |
| * } |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class TypedData implements Asn1Object |
| { |
| |
| // The inner class storing the individual TDs |
| public class TD |
| { |
| /** the type of TypedData */ |
| private int dataType; |
| |
| /** the TypedData data */ |
| private byte[] dataValue; |
| |
| |
| /** |
| * @return the TD type |
| */ |
| public int getDataType() |
| { |
| return dataType; |
| } |
| |
| |
| /** |
| * @return the TD data |
| */ |
| public byte[] getDataValue() |
| { |
| return dataValue; |
| } |
| } |
| |
| /** The list of TypedData elements */ |
| private List<TD> typedDataList = new ArrayList<TD>(); |
| |
| /** The current TD being processed */ |
| private TD currentTD; |
| |
| /** The logger */ |
| private static final Logger LOG = LoggerFactory.getLogger( TypedData.class ); |
| |
| /** Speedup for logs */ |
| private static final boolean IS_DEBUG = LOG.isDebugEnabled(); |
| |
| // Storage for computed lengths |
| private int dataTypeTagLength[]; |
| private int dataValueTagLength[]; |
| private int typedDataSeqLength[]; |
| private int typedDataSeqSeqLength; |
| |
| |
| /** |
| * @return the currentTD type |
| */ |
| public int getCurrentDataType() |
| { |
| return currentTD.dataType; |
| } |
| |
| |
| /** |
| * Set the current TD type |
| */ |
| public void setCurrentDataType( int tdType ) |
| { |
| currentTD.dataType = tdType; |
| } |
| |
| |
| /** |
| * @return the currentTD data |
| */ |
| public byte[] getCurrentDataValue() |
| { |
| return currentTD.dataValue; |
| } |
| |
| |
| /** |
| * Set the current TD data |
| */ |
| public void setCurrentDataValue( byte[] tdData ) |
| { |
| currentTD.dataValue = tdData; |
| } |
| |
| |
| /** |
| * @return the currentTD |
| */ |
| public TD getCurrentTD() |
| { |
| return currentTD; |
| } |
| |
| |
| /** |
| * Create a new currentTD |
| */ |
| public void createNewTD() |
| { |
| currentTD = new TD(); |
| typedDataList.add( currentTD ); |
| } |
| |
| |
| /** |
| * @return the TypedData |
| */ |
| public List<TD> getTypedData() |
| { |
| return typedDataList; |
| } |
| |
| |
| /** |
| * Compute the TypedData length |
| * <pre> |
| * 0x30 L1 TypedData sequence |
| * | |
| * +-- 0x30 L2 The TD sequence |
| * | |
| * +--> 0xA0 L3 tdType tag |
| * | | |
| * | +--> 0x02 L3-2 tdType (int) |
| * | |
| * +--> [0xA1 L4 tdData tag |
| * | |
| * +--> 0x04 L4-2 tdData (OCTET STRING)] |
| * </pre> |
| */ |
| @Override |
| public int computeLength() |
| { |
| int i = 0; |
| typedDataSeqLength = new int[typedDataList.size()]; |
| dataTypeTagLength = new int[typedDataList.size()]; |
| dataValueTagLength = new int[typedDataList.size()]; |
| typedDataSeqSeqLength = 0; |
| |
| for ( TD td : typedDataList ) |
| { |
| int adTypeLen = BerValue.getNbBytes( td.dataType ); |
| dataTypeTagLength[i] = 1 + TLV.getNbBytes( adTypeLen ) + adTypeLen; |
| typedDataSeqLength[i] = 1 + TLV.getNbBytes( dataTypeTagLength[i] ) + dataTypeTagLength[i]; |
| |
| if ( td.dataValue != null ) |
| { |
| dataValueTagLength[i] = 1 + TLV.getNbBytes( td.dataValue.length ) + td.dataValue.length; |
| typedDataSeqLength[i] += 1 + TLV.getNbBytes( dataValueTagLength[i] ) + dataValueTagLength[i]; |
| } |
| |
| typedDataSeqSeqLength += 1 + TLV.getNbBytes( typedDataSeqLength[i] ) + typedDataSeqLength[i]; |
| i++; |
| } |
| |
| return 1 + TLV.getNbBytes( typedDataSeqSeqLength ) + typedDataSeqSeqLength; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException |
| { |
| if ( buffer == null ) |
| { |
| throw new EncoderException( I18n.err( I18n.ERR_148 ) ); |
| } |
| |
| try |
| { |
| // The AuthorizationData SEQ OF Tag |
| buffer.put( UniversalTag.SEQUENCE.getValue() ); |
| buffer.put( TLV.getBytes( typedDataSeqSeqLength ) ); |
| |
| int i = 0; |
| for ( TD td : typedDataList ) |
| { |
| buffer.put( UniversalTag.SEQUENCE.getValue() ); |
| buffer.put( TLV.getBytes( typedDataSeqLength[i] ) ); |
| |
| // the tdType |
| buffer.put( ( byte ) KerberosConstants.TYPED_DATA_TDTYPE_TAG ); |
| buffer.put( TLV.getBytes( dataTypeTagLength[i] ) ); |
| BerValue.encode( buffer, td.dataType ); |
| |
| if ( td.dataValue != null ) |
| { |
| // the tdData |
| buffer.put( ( byte ) KerberosConstants.TYPED_DATA_TDDATA_TAG ); |
| buffer.put( TLV.getBytes( dataValueTagLength[i] ) ); |
| BerValue.encode( buffer, td.dataValue ); |
| } |
| |
| i++; |
| } |
| } |
| catch ( BufferOverflowException boe ) |
| { |
| LOG.error( I18n.err( I18n.ERR_743_CANNOT_ENCODE_TYPED_DATA, 1 + TLV.getNbBytes( typedDataSeqSeqLength ) |
| + typedDataSeqSeqLength, buffer.capacity() ) ); |
| throw new EncoderException( I18n.err( I18n.ERR_138 ) ); |
| } |
| |
| if ( IS_DEBUG ) |
| { |
| LOG.debug( "TypedData encoding : {}", Strings.dumpBytes( buffer.array() ) ); |
| LOG.debug( "TypedData initial value : {}", toString() ); |
| } |
| |
| return buffer; |
| } |
| |
| |
| /** |
| * @see Object#toString() |
| */ |
| public String toString() |
| { |
| return toString( "" ); |
| } |
| |
| |
| /** |
| * @see Object#toString() |
| */ |
| public String toString( String tabs ) |
| { |
| StringBuilder sb = new StringBuilder(); |
| |
| sb.append( tabs ).append( "TypedData : \n" ); |
| |
| for ( TD td : typedDataList ) |
| { |
| sb.append( tabs ).append( " {\n" ); |
| sb.append( tabs ).append( " tdType: " ).append( td.dataType ).append( '\n' ); |
| if ( td.dataValue != null ) |
| { |
| sb.append( tabs ).append( " tdData: " ).append( Strings.dumpBytes( td.dataValue ) ) |
| .append( '\n' ); |
| } |
| sb.append( tabs ).append( " }\n" ); |
| } |
| |
| return sb.toString(); |
| } |
| } |