| /* |
| * 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.sasl; |
| |
| |
| import javax.security.sasl.SaslServer; |
| |
| import org.apache.directory.server.ldap.LdapSession; |
| import org.apache.mina.core.filterchain.IoFilterChain; |
| import org.apache.mina.core.session.IoSession; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * |
| * An abstract class for all the MechanismHandlers, implementing some common methods |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public abstract class AbstractMechanismHandler implements MechanismHandler |
| { |
| /** A logger for this class **/ |
| private static final Logger LOG = LoggerFactory.getLogger( AbstractMechanismHandler.class ); |
| |
| |
| /** |
| * Inject a SaslFilter into the Filter chain, to deal with modified |
| * PDU sent when some mechanisms have been negotiated (DIGEST-MD5, GSSAPI, |
| * for instance) |
| * |
| * @param ldapSession the LdapSession instance |
| */ |
| protected void insertSaslFilter( LdapSession ldapSession ) |
| { |
| LOG.debug( "Inserting SaslFilter to engage negotiated security layer." ); |
| IoSession ioSession = ldapSession.getIoSession(); |
| |
| // get the Io chain |
| IoFilterChain chain = ioSession.getFilterChain(); |
| |
| if ( !chain.contains( SaslConstants.SASL_FILTER ) ) |
| { |
| SaslServer saslServer = ( SaslServer ) ldapSession.getSaslProperty( SaslConstants.SASL_SERVER ); |
| chain.addBefore( "codec", SaslConstants.SASL_FILTER, new SaslFilter( saslServer ) ); |
| } |
| |
| /* |
| * We disable the SASL security layer once, to write the outbound SUCCESS |
| * message without SASL security layer processing. |
| */ |
| ioSession.setAttribute( SaslFilter.DISABLE_SECURITY_LAYER_ONCE, Boolean.TRUE ); |
| } |
| } |