DefaultLoginHandler


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   * $Header:$
17   */
18  package org.apache.beehive.netui.pageflow.internal;
19  
20  import org.apache.beehive.netui.pageflow.handler.LoginHandler;
21  import org.apache.beehive.netui.pageflow.handler.BaseHandler;
22  import org.apache.beehive.netui.pageflow.handler.FlowControllerHandlerContext;
23  
24  import javax.servlet.ServletContext  ;
25  import javax.servlet.ServletRequest  ;
26  import javax.servlet.http.HttpServletRequest  ;
27  import javax.servlet.http.HttpServletResponse  ;
28  import javax.security.auth.login.LoginException  ;
29  import java.io.Serializable  ;
30  import java.security.Principal  ;
31  
32  
33  /**
34   * Implements default J2EE web-tier login handling.
35   */ 
36  public class DefaultLoginHandler
37          extends DefaultHandler
38          implements LoginHandler
39  {
40      public DefaultLoginHandler( ServletContext   servletContext )
41      {
42          init( null, null, servletContext );
43      }
44  
45      public void login( FlowControllerHandlerContext context, String   username, String   password )
46          throws LoginException  
47      {
48          assert context.getRequest() instanceof HttpServletRequest   : "don't support ServletRequest currently.";
49          assert context.getResponse() instanceof HttpServletResponse   : "don't support ServletResponse currently.";
50          HttpServletRequest   request = ( HttpServletRequest   ) context.getRequest();
51          HttpServletResponse   response = ( HttpServletResponse   ) context.getResponse();
52          AdapterManager.getServletContainerAdapter( getServletContext() ).login( username, password, request, response );
53      }
54  
55      public void logout( FlowControllerHandlerContext context, boolean invalidateSessions )
56      {
57          assert context.getRequest() instanceof HttpServletRequest   : "don't support ServletRequest currently.";
58          assert context.getResponse() instanceof HttpServletResponse   : "don't support ServletResponse currently.";
59          HttpServletRequest   request = ( HttpServletRequest   ) context.getRequest();
60          HttpServletResponse   response = ( HttpServletResponse   ) context.getResponse();
61          AdapterManager.getServletContainerAdapter( getServletContext() ).logout( invalidateSessions, request, response );
62      }
63  
64      public boolean isUserInRole( FlowControllerHandlerContext context, String   roleName )
65      {
66          assert context.getRequest() instanceof HttpServletRequest   : "don't support ServletRequest currently.";
67          HttpServletRequest   request = ( HttpServletRequest   ) context.getRequest();
68          return request.isUserInRole( roleName );
69      }
70  
71      public Principal   getUserPrincipal( FlowControllerHandlerContext context )
72      {
73          assert context.getRequest() instanceof HttpServletRequest   : "don't support ServletRequest currently.";
74          HttpServletRequest   request = ( HttpServletRequest   ) context.getRequest();
75          return request.getUserPrincipal();
76      }
77  }
78
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