SimpleAcceptOrRejectAllAuthenticationComponentImpl


1   /*
2    * Copyright (C) 2005 Alfresco, Inc.
3    *
4    * Licensed under the Mozilla Public License version 1.1 
5    * with a permitted attribution clause. You may obtain a
6    * copy of the License at
7    *
8    *   http://www.alfresco.org/legal/license.txt
9    *
10   * Unless required by applicable law or agreed to in writing,
11   * software distributed under the License is distributed on an
12   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
13   * either express or implied. See the License for the specific
14   * language governing permissions and limitations under the
15   * License.
16   */
17  package org.alfresco.repo.security.authentication;
18  
19  
20  /**
21   * This implementation of an AuthenticationComponent can be configured to accept or reject all attempts to login.
22   * 
23   * This only affects attempts to login using a user name and password.
24   * Authentication filters etc. could still support authentication but not via user names and passwords.
25   * For example, where they set the current user using the authentication component.
26   * Then the current user is set in the security context and asserted to be authenticated.
27   * 
28   * By default, the implementation rejects all authentication attempts.
29   *  
30   * @author Andy Hind
31   */
32  public class SimpleAcceptOrRejectAllAuthenticationComponentImpl extends AbstractAuthenticationComponent
33  {
34      private boolean accept = false;
35  
36      public SimpleAcceptOrRejectAllAuthenticationComponentImpl()
37      {
38          super();
39      }
40  
41      public void setAccept(boolean accept)
42      {
43          this.accept = accept;
44      }
45      
46      public void authenticate(String   userName, char[] password) throws AuthenticationException
47      {
48          if(accept)
49          {
50              setCurrentUser(userName);
51          }
52          else
53          {
54              throw new AuthenticationException("Access Denied");
55          }
56  
57      }
58  
59      @Override  
60      protected boolean implementationAllowsGuestLogin()
61      {
62         return accept;
63      }
64      
65      
66  }
67

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