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1   /*
2    *   Copyright 2004 The Apache Software Foundation
3    *
4    *   Licensed under the Apache License, Version 2.0 (the "License");
5    *   you may not use this file except in compliance with the License.
6    *   You may obtain a copy of the License at
7    *
8    *       http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *   Unless required by applicable law or agreed to in writing, software
11   *   distributed under the License is distributed on an "AS IS" BASIS,
12   *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *   See the License for the specific language governing permissions and
14   *   limitations under the License.
15   *
16   */
17  package org.apache.ldap.server.authn;
18  
19  import javax.naming.NamingException;
20  
21  import org.apache.ldap.common.exception.LdapNoPermissionException;
22  import org.apache.ldap.server.jndi.ServerContext;
23  
24  /***
25   * An {@link Authenticator} that handles anonymous connections
26   * (type <tt>'none'</tt>).
27   *
28   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
29   */
30  public class AnonymousAuthenticator extends AbstractAuthenticator
31  {
32      /***
33       * Creates a new instance.
34       */
35      public AnonymousAuthenticator()
36      {
37          super( "none" );
38      }
39  
40      /***
41       * If the context is not configured to allow anonymous connections,
42       * this method throws a {@link javax.naming.NoPermissionException}.
43       */
44      public LdapPrincipal authenticate( ServerContext ctx ) throws NamingException
45      {
46          if ( getFactoryConfiguration().getStartupConfiguration().isAllowAnonymousAccess() )
47          {
48              return LdapPrincipal.ANONYMOUS ;
49          }
50          else
51          {
52              throw new LdapNoPermissionException( "Anonymous bind NOT permitted!" );
53          }
54      }
55  }