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1   /**
2    *
3    * Copyright 2003-2004 The Apache Software Foundation
4    *
5    *  Licensed under the Apache License, Version 2.0 (the "License");
6    *  you may not use this file except in compliance with the License.
7    *  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   *  Unless required by applicable law or agreed to in writing, software
12   *  distributed under the License is distributed on an "AS IS" BASIS,
13   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   *  See the License for the specific language governing permissions and
15   *  limitations under the License.
16   */
17  package org.apache.geronimo.tomcat.interceptor;
18  
19  import javax.security.jacc.PolicyContext;
20  import javax.servlet.ServletRequest;
21  import javax.servlet.ServletResponse;
22  
23  import org.apache.geronimo.security.Callers;
24  import org.apache.geronimo.security.ContextManager;
25  
26  public class PolicyContextBeforeAfter implements BeforeAfter{
27  
28      private final BeforeAfter next;
29      private final String policyContextID;
30      private final int policyContextIDIndex;
31      private final int callersIndex;
32  
33      public PolicyContextBeforeAfter(BeforeAfter next, int policyContextIDIndex, int callersIndex, String policyContextID) {
34          this.next = next;
35          this.policyContextIDIndex = policyContextIDIndex;
36          this.callersIndex = callersIndex;
37          this.policyContextID = policyContextID;
38      }
39  
40      public void before(Object[] context, ServletRequest httpRequest, ServletResponse httpResponse) {
41  
42          //Save the old
43  
44          context[policyContextIDIndex] = PolicyContext.getContextID();
45          context[callersIndex] = ContextManager.getCallers();
46  
47          //Set the new
48          PolicyContext.setContextID(policyContextID);
49          PolicyContext.setHandlerData(httpRequest);
50  
51          if (next != null) {
52              next.before(context, httpRequest, httpResponse);
53          }
54      }
55  
56      public void after(Object[] context, ServletRequest httpRequest, ServletResponse httpResponse) {
57          if (next != null) {
58              next.after(context, httpRequest, httpResponse);
59          }
60  
61          //Replace the old
62          PolicyContext.setContextID((String)context[policyContextIDIndex]);
63          ContextManager.popCallers((Callers) context[callersIndex]);
64      }
65  
66  }
67