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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 org.apache.ldap.common.exception.LdapNoPermissionException;
20  import org.apache.ldap.server.jndi.ServerContext;
21  
22  import javax.naming.NamingException;
23  
24  /***
25   * A default implentation of an AuthenticationService for handling anonymous connections.
26   *
27   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
28   */
29  public class AnonymousAuthenticator extends AbstractAuthenticator
30  {
31      public AnonymousAuthenticator( )
32      {
33          super( "none" );
34      }
35  
36  
37      /***
38       * This will be called when the authentication is set to "none" on the client.
39       * If server is not configured to allow anonymous connections, it throws an exception.
40       */
41      public LdapPrincipal authenticate( ServerContext ctx ) throws NamingException
42      {
43          if ( getAuthenticatorContext().getAllowAnonymous() )
44          {
45              return LdapPrincipal.ANONYMOUS ;
46          }
47          else
48          {
49              throw new LdapNoPermissionException( "Anonymous bind NOT permitted!" );
50          }
51      }
52  }