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1
7 package org.jboss.security;
8
9 import java.io.IOException  ;
10 import java.security.CodeSource ;
11 import java.security.Permission ;
12 import java.security.PermissionCollection ;
13 import java.security.Permissions ;
14 import java.security.Principal ;
15 import java.util.ArrayList ;
16 import java.util.HashMap ;
17 import java.util.HashSet ;
18 import java.util.Set ;
19 import javax.security.auth.AuthPermission ;
20 import javax.security.auth.Subject ;
21
22
27 public class AuthorizationInfo
28 {
29 private static Set emptySet = new HashSet ();
30 private ArrayList policyMap = new ArrayList ();
31 private PolicyEntry[] policyEntries;
32
33
37 static class PolicyEntry
38 {
39 private CodeSource cs;
40 private Principal [] principals;
41 private ArrayList permissions;
42
43 PolicyEntry(CodeSource cs, Principal [] principals, ArrayList permissions)
44 {
45 this.cs = cs;
46 this.principals = principals;
47 this.permissions = permissions;
48 }
49
50 public void getPermissions(PermissionCollection perms)
51 {
52 int length = permissions == null ? 0 : permissions.size();
53 for(int n = 0; n < length; n ++)
54 {
55 Permission permission = (Permission ) permissions.get(n);
56 perms.add(permission);
57 }
58 }
59
60 public boolean implies(CodeSource codesrc, Set subjectPrincipals)
61 {
62 boolean implies = false;
63 if( this.cs == codesrc )
65 { implies = true;
67 }
68 else if( this.cs != null && codesrc != null && this.cs.implies(codesrc) )
69 {
70 implies = true;
71 }
72
73 if( implies == true )
75 {
76 if( this.principals != null )
77 { for(int p = 0; p < this.principals.length; p ++)
79 {
80 if( subjectPrincipals.contains(this.principals[p]) == false )
81 {
82 implies = false;
83 break;
84 }
85 }
86 }
87 }
88
89 return implies;
90 }
91 public boolean equals(Object obj)
92 {
93 PolicyEntry key = (PolicyEntry) obj;
94 boolean equals = this.cs == key.cs;
95 if( equals == false )
96 {
97 if( this.cs != null && key.cs != null )
98 equals = this.cs.equals(key.cs);
99 if( equals == true )
100 { if( this.principals != null && key.principals != null && this.principals.length == key.principals.length )
102 {
103 for(int p = 0; p < this.principals.length; p ++)
104 {
105 if( this.principals[p].equals(key.principals[p]) == false )
106 {
107 equals = false;
108 break;
109 }
110 }
111 }
112 else if( this.principals != null || key.principals != null )
113 {
114 equals = false;
115 }
116 }
117 }
118 return equals;
119 }
120 public int hashCode()
121 {
122 int hashCode = 0;
123 if( cs != null )
124 hashCode = cs.hashCode();
125 int length = (this.principals == null ? 0 : this.principals.length);
126 for(int p = 0; p < length; p ++)
127 {
128 hashCode += this.principals[p].hashCode();
129 }
130 return hashCode;
131 }
132
133 public String toString()
134 {
135 StringBuffer buffer = new StringBuffer ();
136 buffer.append("cs=");
137 buffer.append(cs);
138 buffer.append("; principals=");
139 for(int p = 0; principals != null && p < principals.length; p ++)
140 buffer.append(principals[p]);
141 buffer.append("; permissions=");
142 buffer.append(permissions);
143 return buffer.toString();
144 }
145 }
146
147 public AuthorizationInfo()
148 {
149 }
150
151 public PermissionCollection getPermissions(Subject subject, CodeSource codesource)
152 {
153 PermissionCollection perms = new Permissions ();
154 Set subjectPrincipals = emptySet;
155 if( subject != null )
156 subjectPrincipals = subject.getPrincipals();
157 for(int n = 0; n < policyMap.size(); n ++)
158 {
159 PolicyEntry entry = (PolicyEntry) policyMap.get(n);
160 if( entry.implies(codesource, subjectPrincipals) == true )
161 entry.getPermissions(perms);
162 }
163 return perms;
164 }
165
166 public String toString()
167 {
168 StringBuffer buffer = new StringBuffer ("permissions:");
169 return buffer.toString();
170 }
171
172 public void grant(CodeSource cs, ArrayList permissions)
173 {
174 grant(cs, permissions, null);
175 }
176 public void grant(CodeSource cs, ArrayList permissions, Principal [] principals)
177 {
178 PolicyEntry entry = new PolicyEntry(cs, principals, permissions);
179 policyMap.add(entry);
180 }
181 }
182 |
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