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1   /*
2    * Copyright 2000-2001,2004 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.jetspeed.services.security;
18  
19  import org.apache.turbine.services.Service;
20  
21  import org.apache.jetspeed.om.security.JetspeedUser;
22  
23  /***
24   * <p> The <code>PortalAuthentication</code> interface defines contract between 
25   * the portal and security provider required for authentication a Jetspeed User.
26   * This interface enables an application to be independent of the underlying 
27   * authentication technology.
28   *
29   * <p> If the <code>login</code> method returns without
30   * throwing an exception, then the overall authentication succeeded.
31   *
32   * <p> To logout the caller simply needs to invoke the <code>logout</code> method.  
33   * 
34   * @author <a href="mailto:david@bluesunrise.com">David Sean Taylor</a>
35   * @version $Id: PortalAuthentication.java,v 1.3 2004/02/23 03:58:11 jford Exp $
36   */
37  
38  public interface PortalAuthentication extends Service
39  {
40      public String SERVICE_NAME = "PortalAuthentication";
41  
42      /***
43       * Given a public credential(username) and private credential(password), 
44       * perform authentication. If authentication succeeds, a <code>JetspeedUser</code> 
45       * is returned representing the authenticated subject.
46       *
47       * @param username a public credential of the subject to be authenticated.
48       * @param password a private credentialof the subject to be authenticated.
49       * @return a <code>JetspeedUser</code> object representing the authenticated subject.
50       * @exception LoginException when general security provider failure.
51       * @exception FailedLoginException when the authentication failed.
52       * @exception AccountExpiredException when the subject's account is expired.
53       * @exception CredentialExpiredException when the subject's credential is expired.
54       */
55      JetspeedUser login(String username, String password)
56          throws LoginException;
57  
58      /***
59       * Automatically authenticates and retrieves the portal anonymous user.
60       *
61       * @return a <code>JetspeedUser</code> object representing the authenticated subject.
62       * @exception LoginException if the authentication fails.
63       */
64      JetspeedUser getAnonymousUser()
65          throws LoginException;
66  
67      /***
68       * Logout the <code>JetspeedUser</code>.
69       *
70       * The logout procedure my may include removing/destroying
71       * <code>Principal</code> and <code>Credential</code> information
72       * if relevant to the security provider.
73       *
74       * @exception LoginException if the logout fails.
75       */
76      void logout()
77          throws LoginException;
78  }