Author: elecharny
Date: Mon Apr 25 15:33:20 2005
New Revision: 164676
URL: http://svn.apache.org/viewcvs?rev=164676&view=rev
Log:
Added the first part of the SPNEGO Grammar, even if is not finished. (so I
can't check it out from office;)
Added:
directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/spnego/codec/grammars/SpnegoGrammar.java
Added:
directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/spnego/codec/grammars/SpnegoGrammar.java
URL:
http://svn.apache.org/viewcvs/directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/spnego/codec/grammars/SpnegoGrammar.java?rev=164676&view=auto
==============================================================================
---
directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/spnego/codec/grammars/SpnegoGrammar.java
(added)
+++
directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/spnego/codec/grammars/SpnegoGrammar.java
Mon Apr 25 15:33:20 2005
@@ -0,0 +1,155 @@
+/*
+ * Copyright 2005 The Apache Software Foundation
+ *
+ * Licensed 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.asn1.spnego.codec.grammars;
+
+import org.apache.asn1.DecoderException;
+import org.apache.asn1.ber.containers.IAsn1Container;
+import org.apache.asn1.ber.grammar.AbstractGrammar;
+import org.apache.asn1.ber.grammar.GrammarAction;
+import org.apache.asn1.ber.grammar.GrammarTransition;
+import org.apache.asn1.ber.grammar.IGrammar;
+import org.apache.asn1.ldap.codec.grammars.LdapStatesEnum;
+import org.apache.asn1.spnego.codec.SpnegoContainer;
+import org.apache.asn1.spnego.codec.SpnegoPoolEnum;
+import org.apache.asn1.spnego.pojo.SpnegoNegTokenInitPOJO;
+import org.apache.asn1.spnego.pojo.SpnegoPOJO;
+import org.apache.asn1.util.pools.PoolException;
+
+import org.apache.log4j.Logger;
+
+
+/**
+ * This class implements the LdapMessage. 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:[email protected]";>Apache Directory
Project</a>
+ */
+public class SpnegoGrammar extends AbstractGrammar implements IGrammar
+{
+ //~ Static fields/initializers
-----------------------------------------------------------------
+
+ /** The logger */
+ private static final Logger log = Logger.getLogger( SpnegoGrammar.class );
+
+ /** Logging speed up */
+ private static final boolean DEBUG = log.isDebugEnabled();
+
+ /** The instance of grammar. LdapMessageGrammar is a singleton */
+ private static IGrammar instance = new SpnegoGrammar();
+
+ /**
+ * Get the instance of this grammar
+ *
+ * @return An instance on the LdapMessage Grammar
+ */
+ public static IGrammar getInstance()
+ {
+ return instance;
+ }
+
+ //~ Constructors
-------------------------------------------------------------------------------
+ /**
+ * Creates a new LdapMessageGrammar object.
+ */
+ private SpnegoGrammar()
+ {
+
+ name = SpnegoGrammar.class.getName();
+
+ statesEnum = SpnegoStatesEnum.getInstance();
+
+ // We have
+ super.transitions = new
GrammarTransition[SpnegoStatesEnum.LAST_SPNEGO_STATE][256];
+
+
//============================================================================================
+ // SPNEGO
+
//============================================================================================
+ // SPNEGO --> CHOICE {
+ // negTokenInit [0] NegTokenInit, (Tag)
+ // We have a negTokenInit, and the tag must be 0xA0
+ super.transitions[SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_TAG][0xA0] =
new GrammarTransition( SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_TAG,
+ SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_LENGTH, new
GrammarAction( "Spnego neg token init tag" )
+ {
+ public void action( IAsn1Container container ) throws
DecoderException
+ {
+ try {
+ SpnegoContainer spnegoContainer =
(SpnegoContainer)container;
+
+ // First, create a empty Spnego POJO
+ SpnegoPOJO spnegoPOJO = (
SpnegoNegTokenInitPOJO)
spnegoContainer.getPoolManager().allocate(SpnegoPoolEnum.SPNEGO_NEG_TOKEN_INIT_POJO_POOL);
+
+ // Then stores it into the container
+ spnegoContainer.setSpnego(spnegoPOJO);
+
+ return;
+ }
+ catch ( PoolException pe )
+ {
+ throw new DecoderException(
+ "Cannot allocate a spnego Pojo : " +
pe.getMessage() );
+ }
+ }
+ } );
+
+ // SPNEGO --> CHOICE { ...
+ // negTokenInit [0] NegTokenInit, (Length)
+ // We have a negTokenInit, and the tag must be 0xA0
+ // Ok, get the negTokenInit length
+ super.transitions[SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_LENGTH][0xA0]
= new GrammarTransition( SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_LENGTH,
+ SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_VALUE, new
GrammarAction( "Spnego neg token init Length" )
+ {
+ public void action( IAsn1Container container ) throws
DecoderException
+ {
+ // We have to store the expected Length of the PDU
+ SpnegoContainer spnegoContainer =
(SpnegoContainer)container;
+ SpnegoPOJO spnego = spnegoContainer.getSpnego();
+
+
spnego.setExpectedLength(spnegoContainer.getCurrentTLV().getLength().getLength());
+ spnego.setCurrentLength(0);
+
+ return;
+ }
+ } );
+
+ // SPNEGO --> CHOICE { ...
+ // negTokenInit [0] NegTokenInit, (Value)
+ // We will have a SEQUENCE. There is no value, so this is just a
phantom transition.
+ super.transitions[SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_VALUE][0xA0]
= new GrammarTransition( SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_VALUE,
SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_SEQUENCE_TAG, null);
+
+ // NegTokenInit ::= SEQUENCE { (Tag)
+ // Nothing to do, but setting the parent link.
+
super.transitions[SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_SEQUENCE_TAG][0x30] =
new GrammarTransition( SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_SEQUENCE_TAG,
SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_SEQUENCE_LENGTH, null);
+
+ // NegTokenInit ::= SEQUENCE { (Length)
+ // We have to check the length
+
super.transitions[SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_SEQUENCE_LENGTH][0x30]
= new GrammarTransition( SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_SEQUENCE_LENGTH,
+ SpnegoStatesEnum.SPNEGO_NEG_TOKEN_INIT_SEQUENCE_VALUE, new
GrammarAction( "Spnego neg token init sequence Length" )
+ {
+ public void action( IAsn1Container container ) throws
DecoderException
+ {
+ // We have to store the expected Length of the PDU
+ SpnegoContainer spnegoContainer =
(SpnegoContainer)container;
+ SpnegoPOJO spnego = spnegoContainer.getSpnego();
+ checkLength(spnego, spnegoContainer.getCurrentTLV());
+ return;
+ }
+ } );
+
+ }
+}
