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Java > Open Source Codes > org > alfresco > repo > security > authentication > AuthenticatedAuthenticationPassthroughProvider


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 import net.sf.acegisecurity.Authentication;
20 import net.sf.acegisecurity.AuthenticationException;
21 import net.sf.acegisecurity.providers.AuthenticationProvider;
22
23 public class AuthenticatedAuthenticationPassthroughProvider implements AuthenticationProvider
24 {
25
26     public AuthenticatedAuthenticationPassthroughProvider()
27     {
28         super();
29     }
30
31     public Authentication authenticate(Authentication authentication) throws AuthenticationException
32     {
33         if (!supports(authentication.getClass())) {
34             return null;
35         }
36         if(authentication.isAuthenticated())
37         {
38             return authentication;
39         }
40         else
41         {
42             return null;
43         }
44     }
45
46     public boolean supports(Class JavaDoc authentication)
47     {
48         return (Authentication.class.isAssignableFrom(authentication));
49     }
50
51 }
52
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