| /* |
| * 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.apache.directory.shared.kerberos.codec.types.AuthorizationType; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * A structure to hold the authorization data. |
| * |
| * <pre> |
| * AuthorizationData ::= SEQUENCE OF SEQUENCE { |
| * ad-type [0] Int32, |
| * ad-data [1] OCTET STRING |
| * } |
| *</pre> |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class AuthorizationData implements Asn1Object |
| { |
| /** The list of AuthorizationData elements */ |
| private List<AuthorizationDataEntry> authorizationData = new ArrayList<AuthorizationDataEntry>(); |
| |
| /** The current AD being processed */ |
| private AuthorizationDataEntry currentAD; |
| |
| /** The logger */ |
| private static final Logger LOG = LoggerFactory.getLogger( EncryptedData.class ); |
| |
| /** Speedup for logs */ |
| private static final boolean IS_DEBUG = LOG.isDebugEnabled(); |
| |
| // Storage for computed lengths |
| private int adTypeTagLen[]; |
| private int adDataTagLen[]; |
| private int authorizationDataSeqLen[]; |
| private int authorizationDataSeqSeqLen; |
| |
| |
| /** |
| * Creates a new set of AuthorizationData |
| */ |
| public AuthorizationData() |
| { |
| } |
| |
| |
| /** |
| * Compute the AuthorizationData length |
| * <pre> |
| * 0x30 L1 AuthorizationData sequence |
| * | |
| * +-- 0x30 L2 The AD sequence |
| * | |
| * +--> 0xA0 L3 adType tag |
| * | | |
| * | +--> 0x02 L3-1 adType (int) |
| * | |
| * +--> 0xA1 L4 adData tag |
| * | |
| * +--> 0x04 L<4-1 adData (OCTET STRING) |
| * </pre> |
| */ |
| @Override |
| public int computeLength() |
| { |
| int i = 0; |
| authorizationDataSeqLen = new int[authorizationData.size()]; |
| adTypeTagLen = new int[authorizationData.size()]; |
| adDataTagLen = new int[authorizationData.size()]; |
| authorizationDataSeqSeqLen = 0; |
| |
| for ( AuthorizationDataEntry ad : authorizationData ) |
| { |
| int adTypeLen = BerValue.getNbBytes( ad.getAdType().getValue() ); |
| adTypeTagLen[i] = 1 + TLV.getNbBytes( adTypeLen ) + adTypeLen; |
| adDataTagLen[i] = 1 + TLV.getNbBytes( ad.getAdDataRef().length ) + ad.getAdDataRef().length; |
| |
| authorizationDataSeqLen[i] = 1 + TLV.getNbBytes( adTypeTagLen[i] ) + adTypeTagLen[i] + |
| 1 + TLV.getNbBytes( adDataTagLen[i] ) + adDataTagLen[i]; |
| |
| authorizationDataSeqSeqLen += 1 + TLV.getNbBytes( authorizationDataSeqLen[i] ) + authorizationDataSeqLen[i]; |
| i++; |
| } |
| |
| return 1 + TLV.getNbBytes( authorizationDataSeqSeqLen ) + authorizationDataSeqSeqLen; |
| } |
| |
| |
| /** |
| * Encode the EncryptedData message to a PDU. |
| * |
| * @param buffer The buffer where to put the PDU. It should have been allocated |
| * before, with the right size. |
| * @return The constructed PDU. |
| */ |
| @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( authorizationDataSeqSeqLen ) ); |
| |
| int i = 0; |
| |
| for ( AuthorizationDataEntry ad : authorizationData ) |
| { |
| buffer.put( UniversalTag.SEQUENCE.getValue() ); |
| buffer.put( TLV.getBytes( authorizationDataSeqLen[i] ) ); |
| |
| // the adType |
| buffer.put( ( byte ) KerberosConstants.AUTHORIZATION_DATA_ADTYPE_TAG ); |
| buffer.put( TLV.getBytes( adTypeTagLen[i] ) ); |
| BerValue.encode( buffer, ad.getAdType().getValue() ); |
| |
| // the adData |
| buffer.put( ( byte ) KerberosConstants.AUTHORIZATION_DATA_ADDATA_TAG ); |
| buffer.put( TLV.getBytes( adDataTagLen[i] ) ); |
| BerValue.encode( buffer, ad.getAdDataRef() ); |
| |
| i++; |
| } |
| } |
| catch ( BufferOverflowException boe ) |
| { |
| LOG.error( I18n.err( I18n.ERR_139, 1 + TLV.getNbBytes( authorizationDataSeqSeqLen ) |
| + authorizationDataSeqSeqLen, buffer.capacity() ) ); |
| throw new EncoderException( I18n.err( I18n.ERR_138 ) ); |
| } |
| |
| if ( IS_DEBUG ) |
| { |
| LOG.debug( "AuthorizationData encoding : {}", Strings.dumpBytes( buffer.array() ) ); |
| LOG.debug( "AuthorizationData initial value : {}", toString() ); |
| } |
| |
| return buffer; |
| } |
| |
| |
| /** |
| * @return the currentAD type |
| */ |
| public AuthorizationType getCurrentAdType() |
| { |
| return currentAD.getAdType(); |
| } |
| |
| |
| /** |
| * Set the current AD type |
| */ |
| public void setCurrentAdType( AuthorizationType adType ) |
| { |
| currentAD.setAdType( adType ); |
| } |
| |
| |
| /** |
| * @return the currentAD data |
| */ |
| public byte[] getCurrentAdData() |
| { |
| return currentAD.getAdData(); |
| } |
| |
| |
| /** |
| * Set the current AD data |
| */ |
| public void setCurrentAdData( byte[] adData ) |
| { |
| currentAD.setAdData( adData ); |
| } |
| |
| |
| /** |
| * @return the currentAD |
| */ |
| public AuthorizationDataEntry getCurrentAD() |
| { |
| return currentAD; |
| } |
| |
| |
| /** |
| * Create a new currentAD |
| */ |
| public void createNewAD() |
| { |
| currentAD = new AuthorizationDataEntry(); |
| authorizationData.add( currentAD ); |
| } |
| |
| |
| /** |
| * Add a new AuthorizationDataEntry |
| */ |
| public void addEntry( AuthorizationDataEntry entry ) |
| { |
| authorizationData.add( entry ); |
| } |
| |
| |
| /** |
| * @return the authorizationData |
| */ |
| public List<AuthorizationDataEntry> getAuthorizationData() |
| { |
| return authorizationData; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public int hashCode() |
| { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ( ( authorizationData == null ) ? 0 : authorizationData.hashCode() ); |
| result = prime * result + ( ( currentAD == null ) ? 0 : currentAD.hashCode() ); |
| return result; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean equals( Object obj ) |
| { |
| if ( obj == null ) |
| { |
| return false; |
| } |
| |
| AuthorizationData other = ( AuthorizationData ) obj; |
| |
| if ( authorizationData == null ) |
| { |
| if ( other.authorizationData != null ) |
| { |
| return false; |
| } |
| } |
| else if ( !authorizationData.equals( other.authorizationData ) ) |
| { |
| return false; |
| } |
| |
| if ( currentAD == null ) |
| { |
| if ( other.currentAD != null ) |
| { |
| return false; |
| } |
| } |
| else if ( !currentAD.equals( other.currentAD ) ) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| |
| /** |
| * @see Object#toString() |
| */ |
| public String toString( String tabs ) |
| { |
| StringBuilder sb = new StringBuilder(); |
| |
| sb.append( tabs ).append( "AuthorizationData : \n" ); |
| |
| for ( AuthorizationDataEntry ad : authorizationData ) |
| { |
| sb.append( ad.toString( tabs + " " ) ); |
| } |
| |
| return sb.toString(); |
| } |
| |
| |
| /** |
| * @see Object#toString() |
| */ |
| public String toString() |
| { |
| return toString( "" ); |
| } |
| } |