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From elecha...@apache.org
Subject svn commit: r1036292 - in /directory/apacheds/trunk/kerberos-codec/src: main/java/org/apache/directory/shared/kerberos/codec/tgsRep/ main/java/org/apache/directory/shared/kerberos/codec/tgsRep/actions/ main/java/org/apache/directory/shared/kerberos/cod...
Date Wed, 17 Nov 2010 23:56:36 GMT
Author: elecharny
Date: Wed Nov 17 23:56:36 2010
New Revision: 1036292

URL: http://svn.apache.org/viewvc?rev=1036292&view=rev
Log:
Added the TgsRep grammar

Added:
    directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/
    directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepContainer.java
    directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepGrammar.java
    directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepStatesEnum.java
    directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/actions/
    directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/actions/StoreKdcRep.java
    directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/TgsRep.java
    directory/apacheds/trunk/kerberos-codec/src/test/java/org/apache/directory/shared/kerberos/codec/TgsRepDecoderTest.java
Modified:
    directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsReq/TgsReqGrammar.java

Added: directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepContainer.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepContainer.java?rev=1036292&view=auto
==============================================================================
--- directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepContainer.java
(added)
+++ directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepContainer.java
Wed Nov 17 23:56:36 2010
@@ -0,0 +1,67 @@
+/*
+ *  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.codec.tgsRep;
+
+import org.apache.directory.shared.kerberos.codec.kdcRep.KdcRepContainer;
+import org.apache.directory.shared.kerberos.messages.TgsRep;
+
+
+/**
+ * The TGS-REP container stores the TgsRep decoded by the Asn1Decoder.
+ * 
+ * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
+ */
+public class TgsRepContainer extends KdcRepContainer
+{
+    /** An TGS-REP container */
+    private TgsRep tgsRep;
+
+    /**
+     * Creates a new TgsRepContainer object.
+     */
+    public TgsRepContainer()
+    {
+        super();
+        this.stateStack = new int[1];
+        this.grammar = TgsRepGrammar.getInstance();
+        setTransition( TgsRepStatesEnum.START_STATE );
+    }
+
+
+    /**
+     * @return Returns the TgsRep.
+     */
+    public TgsRep getTgsRep()
+    {
+        return tgsRep;
+    }
+
+    
+    /**
+     * Set an TgsRep Object into the container. It will be completed by the
+     * KerberosDecoder.
+     * 
+     * @param tgsRep The TgsRep to set.
+     */
+    public void setTgsRep( TgsRep tgsRep )
+    {
+        this.tgsRep = tgsRep;
+    }
+}

Added: directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepGrammar.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepGrammar.java?rev=1036292&view=auto
==============================================================================
--- directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepGrammar.java
(added)
+++ directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepGrammar.java
Wed Nov 17 23:56:36 2010
@@ -0,0 +1,83 @@
+/*
+ *  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.codec.tgsRep;
+
+
+import org.apache.directory.shared.asn1.ber.grammar.AbstractGrammar;
+import org.apache.directory.shared.asn1.ber.grammar.Grammar;
+import org.apache.directory.shared.asn1.ber.grammar.GrammarTransition;
+import org.apache.directory.shared.kerberos.KerberosConstants;
+import org.apache.directory.shared.kerberos.codec.tgsRep.actions.StoreKdcRep;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/**
+ * This class implements the TGS-REP structure. All the actions are declared
+ * in this class. As it is a singleton, these declaration are only done once. If
+ * an action is to be added or modified, this is where the work is to be done !
+ * 
+ * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
+ */
+public final class TgsRepGrammar extends AbstractGrammar
+{
+    /** The logger */
+    static final Logger LOG = LoggerFactory.getLogger( TgsRepGrammar.class );
+
+    /** A speedup for logger */
+    static final boolean IS_DEBUG = LOG.isDebugEnabled();
+
+    /** The instance of grammar. TgsRepGrammar is a singleton */
+    private static Grammar instance = new TgsRepGrammar();
+
+
+    /**
+     * Creates a new TgsRepGrammar object.
+     */
+    private TgsRepGrammar()
+    {
+        setName( TgsRepGrammar.class.getName() );
+
+        // Create the transitions table
+        super.transitions = new GrammarTransition[TgsRepStatesEnum.LAST_TGS_REP_STATE.ordinal()][256];
+
+        // ============================================================================================
+        // TS-REP 
+        // ============================================================================================
+        // --------------------------------------------------------------------------------------------
+        // Transition from TS-REP init to KDC-REP
+        // --------------------------------------------------------------------------------------------
+        // TGS-REP          ::= [APPLICATION 13] KDC-REP
+        super.transitions[TgsRepStatesEnum.START_STATE.ordinal()][KerberosConstants.TGS_REP_TAG]
= new GrammarTransition(
+            TgsRepStatesEnum.START_STATE, TgsRepStatesEnum.TGS_REP_STATE, KerberosConstants.TGS_REP_TAG,
+            new StoreKdcRep() );
+    }
+
+
+    /**
+     * Get the instance of this grammar
+     * 
+     * @return An instance on the AS-REP Grammar
+     */
+    public static Grammar getInstance()
+    {
+        return instance;
+    }
+}

Added: directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepStatesEnum.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepStatesEnum.java?rev=1036292&view=auto
==============================================================================
--- directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepStatesEnum.java
(added)
+++ directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/TgsRepStatesEnum.java
Wed Nov 17 23:56:36 2010
@@ -0,0 +1,105 @@
+/*
+ *  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.codec.tgsRep;
+
+
+import org.apache.directory.shared.asn1.ber.grammar.Grammar;
+import org.apache.directory.shared.asn1.ber.grammar.States;
+import org.apache.directory.shared.kerberos.codec.KerberosMessageGrammar;
+
+
+/**
+ * This class store the TGS-REP grammar's constants. It is also used for debugging
+ * purpose
+ * 
+ * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
+ */
+public enum TgsRepStatesEnum implements States
+{
+    // Start
+    START_STATE,                            // 0
+    
+    // ----- HostAddresses message --------------------------------------
+    TGS_REP_STATE,                           // 1
+    
+    // End
+    LAST_TGS_REP_STATE;                      // 2
+
+    
+    /**
+     * Get the grammar name
+     * 
+     * @param grammar The grammar code
+     * @return The grammar name
+     */
+    public String getGrammarName( int grammar )
+    {
+        return "TGS_REP_GRAMMAR";
+    }
+
+
+    /**
+     * Get the grammar name
+     * 
+     * @param grammar The grammar class
+     * @return The grammar name
+     */
+    public String getGrammarName( Grammar grammar )
+    {
+        if ( grammar instanceof KerberosMessageGrammar )
+        {
+            return "TGS_REP_GRAMMAR";
+        }
+        else
+        {
+            return "UNKNOWN GRAMMAR";
+        }
+    }
+
+
+    /**
+     * Get the string representing the state
+     * 
+     * @param state The state number
+     * @return The String representing the state
+     */
+    public String getState( int state )
+    {
+        return ( ( state == LAST_TGS_REP_STATE.ordinal() ) ? "TGS_REP_END_STATE" : name()
);
+    }
+
+    
+    /**
+     * {@inheritDoc}
+     */
+    public boolean isEndState()
+    {
+        return this == LAST_TGS_REP_STATE;
+    }
+    
+    
+    /**
+     * {@inheritDoc}
+     */
+    public TgsRepStatesEnum getStartState()
+    {
+        return START_STATE;
+    }
+}

Added: directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/actions/StoreKdcRep.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/actions/StoreKdcRep.java?rev=1036292&view=auto
==============================================================================
--- directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/actions/StoreKdcRep.java
(added)
+++ directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsRep/actions/StoreKdcRep.java
Wed Nov 17 23:56:36 2010
@@ -0,0 +1,113 @@
+/*
+ *  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.codec.tgsRep.actions;
+
+
+import org.apache.directory.shared.asn1.ber.Asn1Container;
+import org.apache.directory.shared.asn1.ber.Asn1Decoder;
+import org.apache.directory.shared.asn1.ber.grammar.GrammarAction;
+import org.apache.directory.shared.asn1.ber.tlv.TLV;
+import org.apache.directory.shared.asn1.codec.DecoderException;
+import org.apache.directory.shared.i18n.I18n;
+import org.apache.directory.shared.kerberos.codec.KerberosMessageGrammar;
+import org.apache.directory.shared.kerberos.codec.kdcRep.KdcRepContainer;
+import org.apache.directory.shared.kerberos.codec.tgsRep.TgsRepContainer;
+import org.apache.directory.shared.kerberos.messages.TgsRep;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/**
+ * The action used to add a KDC-REP object
+ * 
+ * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
+ */
+public class StoreKdcRep extends GrammarAction
+{
+    /** The logger */
+    private static final Logger LOG = LoggerFactory.getLogger( KerberosMessageGrammar.class
);
+
+    /** Speedup for logs */
+    private static final boolean IS_DEBUG = LOG.isDebugEnabled();
+
+
+    /**
+     * Instantiates a new KDC-REP action.
+     */
+    public StoreKdcRep()
+    {
+        super( "Add an KDC-REP instance" );
+    }
+
+
+    /**
+     * {@inheritDoc}
+     */
+    public void action( Asn1Container container ) throws DecoderException
+    {
+        TgsRepContainer tgsRepContainer = ( TgsRepContainer ) container;
+
+        TLV tlv = tgsRepContainer.getCurrentTLV();
+
+        // The Length should not be null
+        if ( tlv.getLength() == 0 )
+        {
+            LOG.error( I18n.err( I18n.ERR_04066 ) );
+
+            // This will generate a PROTOCOL_ERROR
+            throw new DecoderException( I18n.err( I18n.ERR_04067 ) );
+        }
+        
+        // Now, let's decode the KDC-REP
+        Asn1Decoder kdcRepDecoder = new Asn1Decoder();
+        
+        KdcRepContainer kdcRepContainer = new KdcRepContainer();
+        kdcRepContainer.setStream( container.getStream() );
+        
+        // Store the created TGS-REP object into the KDC-REP container
+        TgsRep tgsRep = new TgsRep();
+        kdcRepContainer.setKdcRep( tgsRep );
+        
+        // Decode the KDC_REP PDU
+        try
+        {
+            kdcRepDecoder.decode( container.getStream(), kdcRepContainer );
+        }
+        catch ( DecoderException de )
+        {
+            throw de;
+        }
+        
+        // Update the expected length for the current TLV
+        tlv.setExpectedLength( tlv.getExpectedLength() - tlv.getLength() );
+
+        // Update the parent
+        container.updateParent();
+        
+        tgsRepContainer.setTgsRep( tgsRep );
+
+        if ( IS_DEBUG )
+        {
+            LOG.debug( "TGS-REP : {}", tgsRep );
+        }
+        
+        container.setGrammarEndAllowed( true );
+    }
+}

Modified: directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsReq/TgsReqGrammar.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsReq/TgsReqGrammar.java?rev=1036292&r1=1036291&r2=1036292&view=diff
==============================================================================
--- directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsReq/TgsReqGrammar.java
(original)
+++ directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/codec/tgsReq/TgsReqGrammar.java
Wed Nov 17 23:56:36 2010
@@ -44,7 +44,7 @@ public final class TgsReqGrammar extends
     /** A speedup for logger */
     static final boolean IS_DEBUG = LOG.isDebugEnabled();
 
-    /** The instance of grammar. AsReqGrammar is a singleton */
+    /** The instance of grammar. TgsReqGrammar is a singleton */
     private static Grammar instance = new TgsReqGrammar();
 
 

Added: directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/TgsRep.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/TgsRep.java?rev=1036292&view=auto
==============================================================================
--- directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/TgsRep.java
(added)
+++ directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/TgsRep.java
Wed Nov 17 23:56:36 2010
@@ -0,0 +1,97 @@
+/*
+ *  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.ByteBuffer;
+
+import org.apache.directory.shared.asn1.ber.tlv.TLV;
+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.components.KdcRep;
+
+
+/**
+ * TGS-REP message. It's just a KDC-REP message with a message type set to 13.
+ *  It will store the object described by the ASN.1 grammar :
+ * <pre>
+ * TGS-REP         ::= [APPLICATION 13] <KDC-REP>
+ * </pre>
+ * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
+ */
+public class TgsRep extends KdcRep
+{
+    // Storage for computed lengths
+    private transient int kdcRepLength;
+    private transient int tgsRepLength;
+
+    /**
+     * Creates a new instance of TGS-REP.
+     */
+    public TgsRep() 
+    {
+        super( KerberosMessageType.TGS_REP );
+    }
+
+    
+    /**
+     * Compute the TGS-REP length
+     * <pre>
+     * TGS-REP :
+     * 
+     * 0x6D L1 TGS-REP message
+     *  |
+     *  +-->  0x30 L2 KDC-REP sequence
+     * </pre>
+     */
+    public int computeLength()
+    {
+        kdcRepLength = super.computeLength();
+        tgsRepLength = 1 + TLV.getNbBytes( kdcRepLength ) + kdcRepLength;
+        
+        return tgsRepLength;
+    }
+    
+    
+    /**
+     * Encode the TGS-REP component
+     * 
+     * @param buffer The buffer containing the encoded result
+     * @return The encoded component
+     * @throws EncoderException If the encoding failed
+     */
+    public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException
+    {
+        if ( buffer == null )
+        {
+            buffer = ByteBuffer.allocate( computeLength() );
+        }
+        
+        // The TGS-REP SEQ Tag
+        buffer.put( (byte)KerberosConstants.TGS_REP_TAG );
+        buffer.put( TLV.getBytes( tgsRepLength ) );
+        
+        // The KDC-REP --------------------------------------------------------
+        super.encode( buffer );
+        
+        return buffer;
+    }
+}

Added: directory/apacheds/trunk/kerberos-codec/src/test/java/org/apache/directory/shared/kerberos/codec/TgsRepDecoderTest.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/kerberos-codec/src/test/java/org/apache/directory/shared/kerberos/codec/TgsRepDecoderTest.java?rev=1036292&view=auto
==============================================================================
--- directory/apacheds/trunk/kerberos-codec/src/test/java/org/apache/directory/shared/kerberos/codec/TgsRepDecoderTest.java
(added)
+++ directory/apacheds/trunk/kerberos-codec/src/test/java/org/apache/directory/shared/kerberos/codec/TgsRepDecoderTest.java
Wed Nov 17 23:56:36 2010
@@ -0,0 +1,237 @@
+/*
+ *  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.codec;
+
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
+
+import java.nio.ByteBuffer;
+
+import org.apache.directory.junit.tools.Concurrent;
+import org.apache.directory.junit.tools.ConcurrentJunitRunner;
+import org.apache.directory.shared.asn1.ber.Asn1Container;
+import org.apache.directory.shared.asn1.ber.Asn1Decoder;
+import org.apache.directory.shared.asn1.codec.DecoderException;
+import org.apache.directory.shared.asn1.codec.EncoderException;
+import org.apache.directory.shared.kerberos.codec.tgsRep.TgsRepContainer;
+import org.apache.directory.shared.kerberos.messages.TgsRep;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+
+/**
+ * Test the decoder for a TGS-REP
+ * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
+ */
+@RunWith(ConcurrentJunitRunner.class)
+@Concurrent()
+public class TgsRepDecoderTest
+{
+    /**
+     * Test the decoding of a TGS-REP message
+     */
+    @Test
+    public void testDecodeFullTgsRep() throws Exception
+    {
+        Asn1Decoder kerberosDecoder = new Asn1Decoder();
+
+        ByteBuffer stream = ByteBuffer.allocate( 0xAC );
+        
+        stream.put( new byte[]
+        {
+          0x6D, (byte)0x81, (byte)0xA9,
+            0x30, (byte)0x81, (byte)0xA6,
+              (byte)0xA0, 0x03,                         // PVNO
+                0x02, 0x01, 0x05,
+              (byte)0xA1, 0x03,                         // msg-type
+                0x02, 0x01, 0x0D,
+              (byte)0xA2, 0x20,                         // PA-DATA
+                0x30, 0x1E,
+                  0x30, 0x0D,
+                    (byte)0xA1,0x03,
+                      0x02, 0x01, 01,
+                    (byte)0xA2, 0x06,
+                      0x04, 0x04, 'a', 'b', 'c', 'd',
+                  0x30, 0x0D,
+                    (byte)0xA1,0x03,
+                      0x02, 0x01, 01,
+                    (byte)0xA2, 0x06,
+                      0x04, 0x04, 'e', 'f', 'g', 'h',
+              (byte)0xA3, 0x0D,                         // crealm
+                0x1B, 0x0B, 'E', 'X', 'A', 'M', 'P', 'L', 'E', '.', 'C', 'O', 'M',
+              (byte)0xA4, 0x14,                         // cname
+                0x30, 0x12,
+                  (byte)0xA0, 0x03,                     // name-type
+                    0x02, 0x01, 0x01,
+                  (byte)0xA1, 0x0B,                     // name-string
+                    0x30, 0x09,
+                      0x1B, 0x07, 'h', 'n', 'e', 'l', 's', 'o', 'n',
+              (byte)0xA5, 0x40,                         // Ticket
+                0x61, 0x3E, 
+                  0x30, 0x3C, 
+                    (byte)0xA0, 0x03, 
+                      0x02, 0x01, 0x05, 
+                    (byte)0xA1, 0x0D, 
+                      0x1B, 0x0B, 
+                        'E', 'X', 'A', 'M', 'P', 'L', 'E', '.', 'C', 'O', 'M', 
+                    (byte)0xA2, 0x13, 
+                      0x30, 0x11, 
+                        (byte)0xA0, 0x03, 
+                          0x02, 0x01, 0x01, 
+                        (byte)0xA1, 0x0A, 
+                          0x30, 0x08, 
+                            0x1B, 0x06, 
+                              'c', 'l', 'i', 'e', 'n', 't', 
+                    (byte)0xA3, 0x11, 
+                      0x30, 0x0F, 
+                        (byte)0xA0, 0x03, 
+                          0x02, 0x01, 0x11, 
+                        (byte)0xA2, 0x08, 
+                          0x04, 0x06, 
+                            'a', 'b', 'c', 'd', 'e', 'f', 
+              (byte)0xA6, 0x11,                         // enc-part
+                0x30, 0x0F, 
+                  (byte)0xA0, 0x03, 
+                    0x02, 0x01, 0x11, 
+                  (byte)0xA2, 0x08, 
+                    0x04, 0x06, 
+                      'a', 'b', 'c', 'd', 'e', 'f', 
+        });
+
+        stream.flip();
+
+        // Allocate a TgsRep Container
+        TgsRepContainer tgsRepContainer = new TgsRepContainer();
+        tgsRepContainer.setStream( stream );
+        
+        // Decode the TgsRep PDU
+        try
+        {
+            kerberosDecoder.decode( stream, tgsRepContainer );
+        }
+        catch ( DecoderException de )
+        {
+            fail( de.getMessage() );
+        }
+
+        TgsRep tgsRep = tgsRepContainer.getTgsRep();
+        
+        // Check the encoding
+        int length = tgsRep.computeLength();
+
+        // Check the length
+        assertEquals( 0xAC, length );
+        
+        // Check the encoding
+        ByteBuffer encodedPdu = ByteBuffer.allocate( length );
+        
+        try
+        {
+            encodedPdu = tgsRep.encode( encodedPdu );
+            
+            // Check the length
+            assertEquals( 0xAC, encodedPdu.limit() );
+        }
+        catch ( EncoderException ee )
+        {
+            fail();
+        }
+    }
+    
+    
+    /**
+     * Test the decoding of a TGS-REP with nothing in it
+     */
+    @Test( expected = DecoderException.class)
+    public void testTgsRepEmpty() throws DecoderException
+    {
+        Asn1Decoder kerberosDecoder = new Asn1Decoder();
+
+        ByteBuffer stream = ByteBuffer.allocate( 0x02 );
+        
+        stream.put( new byte[]
+            { 0x30, 0x00 } );
+
+        stream.flip();
+
+        // Allocate a TGS-REP Container
+        Asn1Container tgsRepContainer = new TgsRepContainer();
+
+        // Decode the TGS-REP PDU
+        kerberosDecoder.decode( stream, tgsRepContainer );
+        fail();
+    }
+    
+    
+    /**
+     * Test the decoding of a TGS-REP with empty Pvno tag
+     */
+    @Test( expected = DecoderException.class)
+    public void testTgsRepEmptyPvnoTag() throws DecoderException
+    {
+        Asn1Decoder kerberosDecoder = new Asn1Decoder();
+
+        ByteBuffer stream = ByteBuffer.allocate( 0x04 );
+        
+        stream.put( new byte[]
+            { 
+                0x30, 0x02,
+                  (byte)0xA0, 0x00
+            } );
+
+        stream.flip();
+
+        // Allocate a TGS-REP Container
+        Asn1Container tgsRepContainer = new TgsRepContainer();
+
+        // Decode the TGS-REP PDU
+        kerberosDecoder.decode( stream, tgsRepContainer );
+        fail();
+    }
+    
+    
+    /**
+     * Test the decoding of a TGS-REP with empty Pvno value
+     */
+    @Test( expected = DecoderException.class)
+    public void testTgsRepEmptyPvnoValue() throws DecoderException
+    {
+        Asn1Decoder kerberosDecoder = new Asn1Decoder();
+
+        ByteBuffer stream = ByteBuffer.allocate( 0x06 );
+        
+        stream.put( new byte[]
+            { 
+                0x30, 0x04,
+                  (byte)0xA0, 0x02,
+                    0x02, 0x00
+            } );
+
+        stream.flip();
+
+        // Allocate a TGS-REP Container
+        Asn1Container tgsRepContainer = new TgsRepContainer();
+
+        // Decode the TGS-REP PDU
+        kerberosDecoder.decode( stream, tgsRepContainer );
+        fail();
+    }
+}



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