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1
7 package org.jboss.security;
8
9 import java.lang.reflect.InvocationTargetException  ;
10 import java.lang.reflect.UndeclaredThrowableException ;
11 import java.lang.reflect.Method ;
12 import java.security.PrivilegedExceptionAction ;
13 import java.security.PrivilegedActionException ;
14 import javax.security.auth.Subject ;
15
16 import org.jboss.security.SubjectSecurityManager;
17
18
33 public class SubjectSecurityProxy extends AbstractSecurityProxy
34 {
35 private SubjectSecurityManager subjectSecurityManager;
36
37 SubjectSecurityProxy(Object delegate)
38 {
39 super(delegate);
40 }
41
42 public void init(Class beanHome, Class beanRemote, Object securityMgr)
43 throws InstantiationException
44 {
45 init(beanHome, beanRemote, null, null, securityMgr);
46 }
47
48 public void init(Class beanHome, Class beanRemote,
49 Class beanLocalHome, Class beanLocal, Object securityMgr)
50 throws InstantiationException
51 {
52 if ((securityMgr instanceof SubjectSecurityManager) == false)
53 {
54 String msg = "SubjectSecurityProxy requires a SubjectSecurityManager"
55 + " instance, securityMgr=" + securityMgr;
56 throw new InstantiationException (msg);
57 }
58 subjectSecurityManager = (SubjectSecurityManager) securityMgr;
59 super.init(beanHome, beanRemote, beanLocalHome, beanLocal, securityMgr);
60 }
61
62 protected void invokeHomeOnDelegate(final Method m, final Object [] args, final Object delegate)
63 throws SecurityException
64 { final Subject subject = subjectSecurityManager.getActiveSubject();
66 if (subject == null)
67 throw new SecurityException ("No subject associated with secure proxy");
68
69 try
70 {
71 Subject.doAsPrivileged(subject, new PrivilegedExceptionAction ()
72 {
73 public Object run() throws Exception
74 {
75 m.invoke(delegate, args);
76 return null;
77 }
78 },
79 null
80 );
81 }
82 catch (PrivilegedActionException e)
83 {
84 Throwable t = e.getException();
85 if (t instanceof InvocationTargetException )
86 {
87 t = ((InvocationTargetException ) t).getTargetException();
88 }
89 else if (t instanceof UndeclaredThrowableException )
90 {
91 t = ((UndeclaredThrowableException ) t).getUndeclaredThrowable();
92 }
93 if (t instanceof SecurityException )
94 throw (SecurityException ) t;
95 t.printStackTrace();
96 throw new SecurityException ("Unexpected error during security proxy execution:" + t.getMessage());
97 }
98 }
99
100 protected void invokeOnDelegate(final Method m, final Object [] args, final Object delegate)
101 throws Exception
102 { final Subject subject = subjectSecurityManager.getActiveSubject();
104 if (subject == null)
105 throw new SecurityException ("No subject associated with secure proxy");
106
107 try
108 {
109 Subject.doAsPrivileged(subject, new PrivilegedExceptionAction ()
110 {
111 public Object run() throws Exception
112 {
113 m.invoke(delegate, args);
114 return null;
115 }
116 },
117 null
118 );
119 }
120 catch (PrivilegedActionException e)
121 {
122 Throwable t = e.getException();
123 if (t instanceof InvocationTargetException )
124 {
125 InvocationTargetException ex = (InvocationTargetException ) t;
127 t = ex.getTargetException();
128 throw (Exception ) t;
129 }
130 else if (t instanceof UndeclaredThrowableException )
131 {
132 t = ((UndeclaredThrowableException ) t).getUndeclaredThrowable();
133 }
134 if (t instanceof SecurityException )
135 throw (SecurityException ) t;
136 throw new SecurityException ("Unexpected error during security proxy execution:" + t.getMessage());
137 }
138 }
139
140 }
141 |
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