001    /*
002     *  Licensed to the Apache Software Foundation (ASF) under one
003     *  or more contributor license agreements.  See the NOTICE file
004     *  distributed with this work for additional information
005     *  regarding copyright ownership.  The ASF licenses this file
006     *  to you under the Apache License, Version 2.0 (the
007     *  "License"); you may not use this file except in compliance
008     *  with the License.  You may obtain a copy of the License at
009     *  
010     *    http://www.apache.org/licenses/LICENSE-2.0
011     *  
012     *  Unless required by applicable law or agreed to in writing,
013     *  software distributed under the License is distributed on an
014     *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     *  KIND, either express or implied.  See the License for the
016     *  specific language governing permissions and limitations
017     *  under the License. 
018     *  
019     */
020    package org.apache.directory.server.core.authn;
021    
022    
023    import javax.naming.NamingException;
024    
025    import org.apache.directory.server.core.LdapPrincipal;
026    import org.apache.directory.server.core.interceptor.context.BindOperationContext;
027    import org.apache.directory.shared.ldap.constants.AuthenticationLevel;
028    
029    
030    /**
031     * An {@link Authenticator} that handles SASL connections (X.501 authentication
032     * level <tt>'strong'</tt>).  The principal has been authenticated during SASL
033     * negotiation; therefore, no additional authentication is necessary in this
034     * {@link Authenticator}.
035     * 
036     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
037     * @version $Rev$, $Date$
038     */
039    public class StrongAuthenticator extends AbstractAuthenticator
040    {
041        /**
042         * Creates a new instance of SaslAuthenticator.
043         */
044        public StrongAuthenticator()
045        {
046            super( AuthenticationLevel.STRONG.toString() );
047        }
048    
049    
050        /**
051         * User has already been authenticated during SASL negotiation.  Set the authentication level
052         * to strong and return an {@link LdapPrincipal}.
053         */
054        public LdapPrincipal authenticate( BindOperationContext opContext ) throws NamingException
055        {
056            // Possibly check if user account is disabled, other account checks.
057            return new LdapPrincipal( opContext.getDn(), AuthenticationLevel.STRONG );
058        }
059    }