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1
22 package org.jboss.proxy;
23
24 import java.security.Principal  ;
25 import java.security.PrivilegedAction ;
26 import java.security.AccessController ;
27
28 import org.jboss.invocation.Invocation;
29 import org.jboss.security.SecurityAssociation;
30
31
37 public class SecurityInterceptor
38 extends Interceptor
39 {
40
41 private static final long serialVersionUID = -4206940878404525061L;
42
43
46 public SecurityInterceptor()
47 {
48 }
49
50
52 public Object invoke(Invocation invocation)
53 throws Throwable
54 {
55 SecurityActions sa = SecurityActions.UTIL.getSecurityActions();
57
58 Principal principal = sa.getPrincipal();
59 if (principal != null)
60 {
61 invocation.setPrincipal(principal);
62 }
63
64 Object credential = sa.getCredential();
65 if (credential != null)
66 {
67 invocation.setCredential(credential);
68 }
69
70 return getNext().invoke(invocation);
71 }
72
73 interface SecurityActions
74 {
75 class UTIL
76 {
77 static SecurityActions getSecurityActions()
78 {
79 return System.getSecurityManager() == null ? NON_PRIVILEGED : PRIVILEGED;
80 }
81 }
82
83 SecurityActions NON_PRIVILEGED = new SecurityActions()
84 {
85 public Principal getPrincipal()
86 {
87 return SecurityAssociation.getPrincipal();
88 }
89
90 public Object getCredential()
91 {
92 return SecurityAssociation.getCredential();
93 }
94 };
95
96 SecurityActions PRIVILEGED = new SecurityActions()
97 {
98 private final PrivilegedAction getPrincipalAction = new PrivilegedAction ()
99 {
100 public Object run()
101 {
102 return SecurityAssociation.getPrincipal();
103 }
104 };
105
106 private final PrivilegedAction getCredentialAction = new PrivilegedAction ()
107 {
108 public Object run()
109 {
110 return SecurityAssociation.getCredential();
111 }
112 };
113
114 public Principal getPrincipal()
115 {
116 return (Principal )AccessController.doPrivileged(getPrincipalAction);
117 }
118
119 public Object getCredential()
120 {
121 return AccessController.doPrivileged(getCredentialAction);
122 }
123 };
124
125 Principal getPrincipal();
126
127 Object getCredential();
128 }
129 }
130 |
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