/*
* 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.api.ldap.extras.extended.ads_impl.pwdModify;
import org.apache.directory.api.asn1.DecoderException;
import org.apache.directory.api.asn1.ber.grammar.AbstractGrammar;
import org.apache.directory.api.asn1.ber.grammar.Grammar;
import org.apache.directory.api.asn1.ber.grammar.GrammarAction;
import org.apache.directory.api.asn1.ber.grammar.GrammarTransition;
import org.apache.directory.api.asn1.ber.tlv.BerValue;
import org.apache.directory.api.asn1.ber.tlv.UniversalTag;
import org.apache.directory.api.ldap.codec.api.LdapApiServiceFactory;
import org.apache.directory.api.ldap.extras.extended.PwdModifyRequestImpl;
import org.apache.directory.api.util.Strings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This class implements the PasswordModify extended operation's ASN.1 grammer.
* All the actions are declared in this class. As it is a singleton,
* these declaration are only done once. The grammar is :
*
* <pre>
* PasswdModifyRequestValue ::= SEQUENCE {
* userIdentity [0] OCTET STRING OPTIONAL
* oldPasswd [1] OCTET STRING OPTIONAL
* newPasswd [2] OCTET STRING OPTIONAL }
* </pre>
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public class PasswordModifyRequestGrammar extends AbstractGrammar<PasswordModifyRequestContainer>
{
/** logger */
private static final Logger LOG = LoggerFactory.getLogger( PasswordModifyRequestGrammar.class );
/** Speedup for logs */
static final boolean IS_DEBUG = LOG.isDebugEnabled();
/** The instance of grammar. PasswdModifyRequestGrammar is a singleton */
private static Grammar<PasswordModifyRequestContainer> instance = new PasswordModifyRequestGrammar();
@SuppressWarnings("unchecked")
public PasswordModifyRequestGrammar()
{
setName( PasswordModifyRequestGrammar.class.getName() );
// Create the transitions table
super.transitions = new GrammarTransition[PasswordModifyRequestStatesEnum.LAST_PASSWORD_MODIFY_REQUEST_STATE
.ordinal()][256];
/**
* Transition from init state to PasswordModify Request Value
*
* PasswdModifyRequestValue ::= SEQUENCE {
* ...
*
* Creates the PasswdModifyRequest object
*/
super.transitions[PasswordModifyRequestStatesEnum.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] =
new GrammarTransition<PasswordModifyRequestContainer>(
PasswordModifyRequestStatesEnum.START_STATE,
PasswordModifyRequestStatesEnum.PASSWORD_MODIFY_REQUEST_SEQUENCE_STATE,
UniversalTag.SEQUENCE.getValue(), new GrammarAction<PasswordModifyRequestContainer>(
"Init PasswordModifyRequest" )
{
public void action( PasswordModifyRequestContainer container )
{
PasswordModifyRequestDecorator passwordModifyRequestDecorator = new PasswordModifyRequestDecorator(
LdapApiServiceFactory.getSingleton(), new PwdModifyRequestImpl() );
container.setPasswordModifyRequest( passwordModifyRequestDecorator );
// We may have nothing left
container.setGrammarEndAllowed( true );
}
} );
/**
* Transition from PasswordModify Request Value to userIdentity
*
* PasswdModifyRequestValue ::= SEQUENCE {
* userIdentity [0] OCTET STRING OPTIONAL
* ...
*
* Set the userIdentity into the PasswdModifyRequest instance.
*/
super.transitions[PasswordModifyRequestStatesEnum.PASSWORD_MODIFY_REQUEST_SEQUENCE_STATE.ordinal()][PasswordModifyRequestConstants.USER_IDENTITY_TAG] =
new GrammarTransition<PasswordModifyRequestContainer>(
PasswordModifyRequestStatesEnum.PASSWORD_MODIFY_REQUEST_SEQUENCE_STATE,
PasswordModifyRequestStatesEnum.USER_IDENTITY_STATE,
PasswordModifyRequestConstants.USER_IDENTITY_TAG,
new GrammarAction<PasswordModifyRequestContainer>( "Set PasswordModifyRequest user identity" )
{
public void action( PasswordModifyRequestContainer container ) throws DecoderException
{
BerValue value = container.getCurrentTLV().getValue();
byte[] userIdentity = value.getData();
if ( IS_DEBUG )
{
LOG.debug( "UserIdentity = " + Strings.dumpBytes( userIdentity ) );
}
if ( userIdentity == null )
{
userIdentity = Strings.EMPTY_BYTES;
}
( ( PasswordModifyRequestDecorator ) container.getPwdModifyRequest() )
.setUserIdentity( userIdentity );
// We may have nothing left
container.setGrammarEndAllowed( true );
}
} );
/**
* Transition from userIdentity to oldPassword
*
* PasswdModifyRequestValue ::= SEQUENCE {
* userIdentity [0] OCTET STRING OPTIONAL
* oldPassword [1] OCTET STRING OPTIONAL
* ...
*
* Set the oldPassword into the PasswdModifyRequest instance.
*/
super.transitions[PasswordModifyRequestStatesEnum.USER_IDENTITY_STATE.ordinal()][PasswordModifyRequestConstants.OLD_PASSWORD_TAG] =
new GrammarTransition<PasswordModifyRequestContainer>(
PasswordModifyRequestStatesEnum.USER_IDENTITY_STATE,
PasswordModifyRequestStatesEnum.OLD_PASSWORD_STATE,
PasswordModifyRequestConstants.OLD_PASSWORD_TAG,
new GrammarAction<PasswordModifyRequestContainer>( "Set PasswordModifyRequest oldPassword" )
{
public void action( PasswordModifyRequestContainer container ) throws DecoderException
{
BerValue value = container.getCurrentTLV().getValue();
byte[] oldPassword = value.getData();
if ( IS_DEBUG )
{
LOG.debug( "oldPassword = " + Strings.dumpBytes( oldPassword ) );
}
if ( oldPassword == null )
{
oldPassword = Strings.EMPTY_BYTES;
}
( ( PasswordModifyRequestDecorator ) container.getPwdModifyRequest() )
.setOldPassword( oldPassword );
// We may have nothing left
container.setGrammarEndAllowed( true );
}
} );
/**
* Transition from userIdentity to newPassword
*
* PasswdModifyRequestValue ::= SEQUENCE {
* userIdentity [0] OCTET STRING OPTIONAL
* ...
* newPassword [2] OCTET STRING OPTIONAL
*
*
* Set the newPassword into the PasswdModifyRequest instance.
*/
super.transitions[PasswordModifyRequestStatesEnum.USER_IDENTITY_STATE.ordinal()][PasswordModifyRequestConstants.NEW_PASSWORD_TAG] =
new GrammarTransition<PasswordModifyRequestContainer>(
PasswordModifyRequestStatesEnum.USER_IDENTITY_STATE,
PasswordModifyRequestStatesEnum.NEW_PASSWORD_STATE,
PasswordModifyRequestConstants.NEW_PASSWORD_TAG,
new GrammarAction<PasswordModifyRequestContainer>( "Set PasswordModifyRequest newPassword" )
{
public void action( PasswordModifyRequestContainer container ) throws DecoderException
{
BerValue value = container.getCurrentTLV().getValue();
byte[] newPassword = value.getData();
if ( IS_DEBUG )
{
LOG.debug( "newPassword = " + Strings.dumpBytes( newPassword ) );
}
if ( newPassword == null )
{
newPassword = Strings.EMPTY_BYTES;
}
( ( PasswordModifyRequestDecorator ) container.getPwdModifyRequest() )
.setNewPassword( newPassword );
// We may have nothing left
container.setGrammarEndAllowed( true );
}
} );
/**
* Transition from PasswordModify Request Value to oldPassword
*
* PasswdModifyRequestValue ::= SEQUENCE {
* ...
* oldPassword [1] OCTET STRING OPTIONAL
* ...
*
* Set the oldPassword into the PasswdModifyRequest instance.
*/
super.transitions[PasswordModifyRequestStatesEnum.PASSWORD_MODIFY_REQUEST_SEQUENCE_STATE.ordinal()][PasswordModifyRequestConstants.OLD_PASSWORD_TAG] =
new GrammarTransition<PasswordModifyRequestContainer>(
PasswordModifyRequestStatesEnum.PASSWORD_MODIFY_REQUEST_SEQUENCE_STATE,
PasswordModifyRequestStatesEnum.OLD_PASSWORD_STATE,
PasswordModifyRequestConstants.OLD_PASSWORD_TAG,
new GrammarAction<PasswordModifyRequestContainer>( "Set PasswordModifyRequest oldPassword" )
{
public void action( PasswordModifyRequestContainer container ) throws DecoderException
{
BerValue value = container.getCurrentTLV().getValue();
byte[] oldPassword = value.getData();
if ( IS_DEBUG )
{
LOG.debug( "OldPassword = " + Strings.dumpBytes( oldPassword ) );
}
if ( oldPassword == null )
{
oldPassword = Strings.EMPTY_BYTES;
}
( ( PasswordModifyRequestDecorator ) container.getPwdModifyRequest() )
.setOldPassword( oldPassword );
// We may have nothing left
container.setGrammarEndAllowed( true );
}
} );
/**
* Transition from PasswordModify Request Value to newPassword
*
* PasswdModifyRequestValue ::= SEQUENCE {
* ...
* newPassword [2] OCTET STRING OPTIONAL
* }
*
* Set the newPassword into the PasswdModifyRequest instance.
*/
super.transitions[PasswordModifyRequestStatesEnum.PASSWORD_MODIFY_REQUEST_SEQUENCE_STATE.ordinal()][PasswordModifyRequestConstants.NEW_PASSWORD_TAG] =
new GrammarTransition<PasswordModifyRequestContainer>(
PasswordModifyRequestStatesEnum.PASSWORD_MODIFY_REQUEST_SEQUENCE_STATE,
PasswordModifyRequestStatesEnum.NEW_PASSWORD_STATE,
PasswordModifyRequestConstants.NEW_PASSWORD_TAG,
new GrammarAction<PasswordModifyRequestContainer>( "Set PasswordModifyRequest newPassword" )
{
public void action( PasswordModifyRequestContainer container ) throws DecoderException
{
BerValue value = container.getCurrentTLV().getValue();
byte[] newPassword = value.getData();
if ( IS_DEBUG )
{
LOG.debug( "NewPassword = " + Strings.dumpBytes( newPassword ) );
}
if ( newPassword == null )
{
newPassword = Strings.EMPTY_BYTES;
}
( ( PasswordModifyRequestDecorator ) container.getPwdModifyRequest() )
.setNewPassword( newPassword );
// We may have nothing left
container.setGrammarEndAllowed( true );
}
} );
/**
* Transition from oldPassword to newPassword
*
* ...
* oldPassword [1] OCTET STRING OPTIONAL
* newPassword [2] OCTET STRING OPTIONAL
* }
*
* Set the newPassword into the PasswdModifyRequest instance.
*/
super.transitions[PasswordModifyRequestStatesEnum.OLD_PASSWORD_STATE.ordinal()][PasswordModifyRequestConstants.NEW_PASSWORD_TAG] =
new GrammarTransition<PasswordModifyRequestContainer>(
PasswordModifyRequestStatesEnum.OLD_PASSWORD_STATE,
PasswordModifyRequestStatesEnum.NEW_PASSWORD_STATE,
PasswordModifyRequestConstants.NEW_PASSWORD_TAG,
new GrammarAction<PasswordModifyRequestContainer>( "Set PasswordModifyRequest newPassword" )
{
public void action( PasswordModifyRequestContainer container ) throws DecoderException
{
BerValue value = container.getCurrentTLV().getValue();
byte[] newPassword = value.getData();
if ( IS_DEBUG )
{
LOG.debug( "NewPassword = " + Strings.dumpBytes( newPassword ) );
}
if ( newPassword == null )
{
newPassword = Strings.EMPTY_BYTES;
}
( ( PasswordModifyRequestDecorator ) container.getPwdModifyRequest() )
.setNewPassword( newPassword );
// We may have nothing left
container.setGrammarEndAllowed( true );
}
} );
}
/**
* This class is a singleton.
*
* @return An instance on this grammar
*/
public static Grammar<PasswordModifyRequestContainer> getInstance()
{
return instance;
}
}