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Java > Open Source Codes > org > jboss > ejb3 > security > RoleBasedAuthorizationInterceptor


1 /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10   * the License, or (at your option) any later version.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this software; if not, write to the Free
19   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21   */
22 package org.jboss.ejb3.security;
23
24 import java.lang.reflect.Method JavaDoc;
25 import java.util.HashSet JavaDoc;
26 import java.util.Set JavaDoc;
27 import javax.annotation.security.DenyAll;
28 import javax.annotation.security.PermitAll;
29 import javax.annotation.security.RolesAllowed;
30 import javax.ejb.EJBAccessException JavaDoc;
31 import org.jboss.aop.joinpoint.Invocation;
32 import org.jboss.aop.joinpoint.MethodInvocation;
33 import org.jboss.ejb3.Container;
34 import org.jboss.ejb3.EJBContainer;
35 import org.jboss.logging.Logger;
36 import org.jboss.security.AnybodyPrincipal;
37 import org.jboss.security.AuthenticationManager;
38 import org.jboss.security.NobodyPrincipal;
39 import org.jboss.security.RealmMapping;
40 import org.jboss.security.SimplePrincipal;
41
42 /**
43  * The RoleBasedAuthorizationInterceptor checks that the caller principal is
44  * authorized to call a method by verifing that it contains at least one
45  * of the required roled.
46  *
47  * @author <a HREF="bill@jboss.org">Bill Burke</a>
48  * @version $Revision: 55508 $
49  */
50 public final class RoleBasedAuthorizationInterceptor extends org.jboss.aspects.security.RoleBasedAuthorizationInterceptor
51 {
52    private static final Logger log = Logger.getLogger(RoleBasedAuthorizationInterceptor.class);
53    
54    private EJBContainer container;
55    
56    public RoleBasedAuthorizationInterceptor(AuthenticationManager manager, RealmMapping realmMapping, Container container)
57    {
58       super(manager, realmMapping);
59       this.container = (EJBContainer)container;
60    }
61
62    protected Set JavaDoc getRoleSet(Invocation invocation)
63    {
64       Method JavaDoc method = ((MethodInvocation)invocation).getActualMethod();
65
66       Class JavaDoc[] classes = new Class JavaDoc[]{DenyAll.class, PermitAll.class, RolesAllowed.class};
67
68       Object JavaDoc annotation = container.resolveAnnotation(method, classes);
69       
70       int classIndex = 0;
71       while (annotation == null && classIndex < 3)
72       {
73          annotation = container.resolveAnnotation(classes[classIndex++]);
74       }
75          
76       HashSet JavaDoc set = new HashSet JavaDoc();
77       if (annotation != null)
78       {
79          if (annotation instanceof DenyAll)
80          {
81             set.add(NobodyPrincipal.NOBODY_PRINCIPAL);
82          }
83          else if (annotation instanceof PermitAll)
84          {
85             set.add(AnybodyPrincipal.ANYBODY_PRINCIPAL);
86          }
87          else if (annotation instanceof RolesAllowed)
88          {
89             RolesAllowed permissions = (RolesAllowed) annotation;
90             for (int i = 0; i < permissions.value().length; i++)
91             {
92                set.add(new SimplePrincipal(permissions.value()[i]));
93             }
94          }
95          else
96             set.add(AnybodyPrincipal.ANYBODY_PRINCIPAL);
97       }
98       else
99          set.add(AnybodyPrincipal.ANYBODY_PRINCIPAL);
100
101       return set;
102    }
103
104    public Object JavaDoc invoke(Invocation invocation) throws Throwable JavaDoc
105    {
106       try
107       {
108          return super.invoke(invocation);
109       }
110       catch (SecurityException JavaDoc throwable)
111       {
112          throw new EJBAccessException JavaDoc("Authorization failure", throwable);
113       } finally {
114       }
115    }
116
117 }
118
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