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From elecha...@apache.org
Subject svn commit: r1039309 - in /directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos: KerberosConstants.java messages/EncApRepPart.java
Date Fri, 26 Nov 2010 11:09:04 GMT
Author: elecharny
Date: Fri Nov 26 11:09:03 2010
New Revision: 1039309

URL: http://svn.apache.org/viewvc?rev=1039309&view=rev
Log:
Added the EncApRepPart class and added the tags in KerberosConstants

Added:
    directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/EncApRepPart.java
Modified:
    directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/KerberosConstants.java

Modified: directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/KerberosConstants.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/KerberosConstants.java?rev=1039309&r1=1039308&r2=1039309&view=diff
==============================================================================
--- directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/KerberosConstants.java
(original)
+++ directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/KerberosConstants.java
Fri Nov 26 11:09:03 2010
@@ -96,6 +96,13 @@ public class KerberosConstants
     /** EncTgsRepPart's tags */
     public static final int ENC_TGS_REP_PART_TAG = 0x7A;
     
+    /** EncAPRepPart's tags */
+    public static final int ENC_AP_REP_PART_TAG = 0x7B;
+    public static final int ENC_AP_REP_PART_CTIME_TAG = 0xA0;
+    public static final int ENC_AP_REP_PART_CUSEC_TAG = 0xA1;
+    public static final int ENC_AP_REP_PART_SUB_KEY_TAG = 0xA2;
+    public static final int ENC_AP_REP_PART_SEQ_NUMBER_TAG = 0xA3;
+    
     /** EncKrbPrivPart */
     public static final int ENC_KRB_PRIV_PART_TAG = 0x7C;
     public static final int ENC_KRB_PRIV_PART_USER_DATA_TAG = 0xA0;

Added: directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/EncApRepPart.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/EncApRepPart.java?rev=1039309&view=auto
==============================================================================
--- directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/EncApRepPart.java
(added)
+++ directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/EncApRepPart.java
Fri Nov 26 11:09:03 2010
@@ -0,0 +1,327 @@
+/*
+ *  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.messages;
+
+import java.nio.BufferOverflowException;
+import java.nio.ByteBuffer;
+
+import org.apache.directory.server.i18n.I18n;
+import org.apache.directory.shared.asn1.ber.tlv.TLV;
+import org.apache.directory.shared.asn1.ber.tlv.UniversalTag;
+import org.apache.directory.shared.asn1.ber.tlv.Value;
+import org.apache.directory.shared.asn1.codec.EncoderException;
+import org.apache.directory.shared.kerberos.KerberosConstants;
+import org.apache.directory.shared.kerberos.KerberosMessageType;
+import org.apache.directory.shared.kerberos.KerberosTime;
+import org.apache.directory.shared.kerberos.components.EncryptionKey;
+import org.apache.directory.shared.ldap.util.StringTools;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+
+/**
+ * Encrypted part of the application response.
+ *  It will store the object described by the ASN.1 grammar :
+ * <pre>
+ * EncAPRepPart    ::= [APPLICATION 27] SEQUENCE {
+ *         ctime           [0] KerberosTime,
+ *         cusec           [1] Microseconds,
+ *         subkey          [2] <EncryptionKey> OPTIONAL,
+ *         seq-number      [3] UInt32 OPTIONAL
+ * }
+ * </pre>
+ * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
+ */
+public class EncApRepPart extends KerberosMessage
+{
+    /** The logger */
+    private static final Logger LOG = LoggerFactory.getLogger( EncApRepPart.class );
+
+    /** Speedup for logs */
+    private static final boolean IS_DEBUG = LOG.isDebugEnabled();
+
+    /** The client time */
+    private KerberosTime ctime;
+    
+    /** the microsecond part of the client's timestamp */
+    private int cusec;
+    
+    /** Encryption key */
+    private EncryptionKey subkey; //optional
+    
+    /** Sequence number */
+    private Integer seqNumber; //optional
+
+    // Storage for computed lengths
+    private transient int ctimeLength;
+    private transient int cusecLength;
+    private transient int subKeyLength;
+    private transient int seqNumberLength;
+    private transient int encApRepPartLength;
+
+    /**
+     * Creates a new instance of EncApRepPart.
+     */
+    public EncApRepPart()
+    {
+        super( KerberosMessageType.ENC_AP_REP_PART );
+    }
+
+
+    /**
+     * Returns the client {@link KerberosTime}.
+     *
+     * @return The client {@link KerberosTime}.
+     */
+    public KerberosTime getCTime()
+    {
+        return ctime;
+    }
+
+
+    /**
+     * @param ctime the ctime to set
+     */
+    public void setCTime( KerberosTime ctime )
+    {
+        this.ctime = ctime;
+    }
+
+    
+    /**
+     * @return the cusec
+     */
+    public int getCusec()
+    {
+        return cusec;
+    }
+
+
+    /**
+     * @param cusec the cusec to set
+     */
+    public void setCusec( int cusec )
+    {
+        this.cusec = cusec;
+    }
+
+
+    /**
+     * @return the subkey
+     */
+    public EncryptionKey getSubkey()
+    {
+        return subkey;
+    }
+
+
+    /**
+     * @param subkey the subkey to set
+     */
+    public void setSubkey( EncryptionKey subkey )
+    {
+        this.subkey = subkey;
+    }
+
+
+    /**
+     * @return the seqNumber
+     */
+    public Integer getSeqNumber()
+    {
+        return seqNumber;
+    }
+
+
+    /**
+     * @param seqNumber the seqNumber to set
+     */
+    public void setSeqNumber( Integer seqNumber )
+    {
+        this.seqNumber = seqNumber;
+    }
+
+
+    /**
+     * Compute the Authenticator length
+     * <pre>
+     * Authenticator :
+     * 
+     * 0x7B L1 EncApRepPart [APPLICATION 27]
+     *  |
+     *  +--> 0xA0 11 ctime tag
+     *  |     |
+     *  |     +--> 0x18 0x0F ttt ctime (KerberosTime)
+     *  |
+     *  +--> 0xA1 L2 cusec tag
+     *  |     |
+     *  |     +--> 0x02 L2-1 cusec (INTEGER)
+     *  |
+     *  +--> 0xA2 L3 subkey (EncryptionKey)
+     *  |
+     *  +--> 0xA3 L4 seq-number tag
+     *        |
+     *        +--> 0x02 L4-1 NN seq-number (INTEGER)
+     * </pre>
+     */
+    @Override
+    public int computeLength()
+    {
+        // Compute the ctime length.
+        ctimeLength = 1 + 1 + 0x0F;
+        encApRepPartLength = 1 + TLV.getNbBytes( ctimeLength ) + ctimeLength;
+
+        // Compute the cusec length
+        cusecLength = 1 + 1 + Value.getNbBytes( cusec );
+        encApRepPartLength += 1 + TLV.getNbBytes( cusecLength ) + cusecLength;
+        
+        // Compute the subkey length, if any
+        if ( subkey != null )
+        {
+            subKeyLength = subkey.computeLength();
+            encApRepPartLength += 1 + TLV.getNbBytes( subKeyLength ) + subKeyLength;
+        }
+        
+        // Compute the sequence size, if any
+        if ( seqNumber != null )
+        {
+            seqNumberLength = 1 + 1 + Value.getNbBytes( seqNumber );
+            encApRepPartLength += 1 + TLV.getNbBytes( seqNumberLength ) + seqNumberLength;
+        }
+        
+        
+        return 1 + TLV.getNbBytes( encApRepPartLength ) + encApRepPartLength;
+    }
+
+
+    /**
+     * Encode the EncApRepPart message to a PDU. 
+     * <pre>
+     * EncApRepPart :
+     * 
+     * 0x7B LL
+     *   0xA0 0x11 
+     *     0x18 0x0F ttt ctime 
+     *   0xA1 LL 
+     *     0x02 LL NN cusec
+     *  [0xA2 LL
+     *     0x30 LL abcd] subkey
+     *  [0xA3 LL
+     *     0x02 LL NN] seq-number
+     * </pre>
+     * @return The constructed PDU.
+     */
+    @Override
+    public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException
+    {
+        if ( buffer == null )
+        {
+            buffer = ByteBuffer.allocate( computeLength() );
+        }
+
+        try
+        {
+            // The EncApRepPart APPLICATION Tag
+            buffer.put( (byte)KerberosConstants.ENC_AP_REP_PART_TAG );
+            buffer.put( TLV.getBytes( encApRepPartLength ) );
+
+            // The ctime ------------------------------------------------------
+            // The tag
+            buffer.put( (byte)KerberosConstants.ENC_AP_REP_PART_CTIME_TAG );
+            buffer.put( (byte)0x11 );
+            
+            // The value
+            buffer.put( (byte)UniversalTag.GENERALIZED_TIME.getValue() );
+            buffer.put( (byte)0x0F );
+            buffer.put( ctime.getBytes() );
+            
+            // The cusec ------------------------------------------------------
+            // The tag
+            buffer.put( (byte)KerberosConstants.ENC_AP_REP_PART_CUSEC_TAG );
+            buffer.put( TLV.getBytes( cusecLength ) );
+            
+            // The value
+            Value.encode( buffer, cusec );
+            
+            // The subkey if any ----------------------------------------------
+            if ( subkey != null )
+            {
+                // The tag
+                buffer.put( (byte)KerberosConstants.ENC_AP_REP_PART_SUB_KEY_TAG );
+                buffer.put( TLV.getBytes( subKeyLength ) );
+                
+                // The value
+                subkey.encode( buffer );
+            }
+            
+            // The seq-number, if any -----------------------------------------
+            // The tag
+            buffer.put( (byte)KerberosConstants.ENC_AP_REP_PART_SEQ_NUMBER_TAG );
+            buffer.put( TLV.getBytes( seqNumberLength ) );
+            
+            // The value
+            Value.encode( buffer, seqNumber );
+            
+        }
+        catch ( BufferOverflowException boe )
+        {
+            LOG.error( I18n.err( I18n.ERR_139, 1 + TLV.getNbBytes( encApRepPartLength )
+                + encApRepPartLength, buffer.capacity() ) );
+            throw new EncoderException( I18n.err( I18n.ERR_138 ) );
+        }
+
+        if ( IS_DEBUG )
+        {
+            LOG.debug( "EncApRepPart encoding : {}", StringTools.dumpBytes( buffer.array()
) );
+            LOG.debug( "EncApRepPart initial value : {}", toString() );
+        }
+
+        return buffer;
+    }
+
+
+
+    /**
+     * @see Object#toString()
+     */
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+
+
+        sb.append( "EncApRepPart : \n" );
+        
+        sb.append( "    ctime : " ).append( ctime ).append( '\n' );
+        sb.append( "    cusec : " ).append( cusec ).append( '\n' );
+        
+        if ( subkey != null )
+        {
+            sb.append( "    subkey : " ).append( subkey ).append( '\n' );
+        }
+        
+        if ( seqNumber != null )
+        {
+            sb.append( "    seq-number : " ).append( seqNumber ).append( '\n' );
+        }
+
+        return sb.toString();
+    }
+}



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