/*
* 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.server.ldap.handlers;
import org.apache.directory.server.core.CoreSession;
import org.apache.directory.server.ldap.LdapSession;
import org.apache.directory.shared.ldap.message.ResultCodeEnum;
import org.apache.directory.shared.ldap.message.internal.InternalLdapResult;
import org.apache.directory.shared.ldap.message.internal.InternalModifyDnRequest;
import org.apache.directory.shared.ldap.name.DN;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A single reply handler for {@link InternalModifyDnRequest}s.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev: 664302 $
*/
public class ModifyDnHandler extends LdapRequestHandler<InternalModifyDnRequest>
{
private static final Logger LOG = LoggerFactory.getLogger( ModifyDnHandler.class );
/**
* Deal with a ModifyDN request received from a client.
*
* A ModifyDN operation has more than one semantic, depending on its parameters.
*
* In any case, the first argument is the DN entry to be changed. We then
* have the new relative DN for this entry.
*
* Two other arguments can be provided :
* - deleteOldRdn : if the old RDN attributes should be removed from the
* new entry or not (for instance, if the old RDN was cn=acme, and the new
* one is sn=acme, then we may have to remove the cn: acme from the attributes
* list)
* - newSuperior : this is a move operation. The entry is removed from its
* current location, and created in the new one.
*/
public void handle( LdapSession session, InternalModifyDnRequest req )
{
InternalLdapResult result = req.getResultResponse().getLdapResult();
LOG.debug( "Handling modify dn request while ignoring referrals: {}", req );
if ( req.getName().isEmpty() )
{
// it is not allowed to modify the name of the Root DSE
String msg = "Modify DN is not allowed on Root DSE.";
result.setResultCode( ResultCodeEnum.PROTOCOL_ERROR );
result.setErrorMessage( msg );
session.getIoSession().write( req.getResultResponse() );
return;
}
try
{
DN newRdn = new DN( req.getNewRdn().toString() );
newRdn.normalize( session.getCoreSession().getDirectoryService()
.getSchemaManager().getNormalizerMapping() );
DN oldRdn = new DN( req.getName().getRdn().toString() );
oldRdn.normalize( session.getCoreSession().getDirectoryService()
.getSchemaManager().getNormalizerMapping() );
boolean rdnChanged = req.getNewRdn() != null &&
! newRdn.getNormName().equals( oldRdn.getNormName() );
CoreSession coreSession = session.getCoreSession();
if ( rdnChanged )
{
if ( req.getNewSuperior() != null )
{
coreSession.moveAndRename( req );
}
else
{
coreSession.rename( req );
}
}
else if ( req.getNewSuperior() != null )
{
req.setNewRdn( null );
coreSession.move( req );
}
else
{
result.setErrorMessage( "Attempt to move entry onto itself." );
result.setResultCode( ResultCodeEnum.ENTRY_ALREADY_EXISTS );
result.setMatchedDn( req.getName() );
session.getIoSession().write( req.getResultResponse() );
return;
}
result.setResultCode( ResultCodeEnum.SUCCESS );
session.getIoSession().write( req.getResultResponse() );
}
catch ( Exception e )
{
handleException( session, req, e );
}
}
}