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1
28 package net.sf.jguard.core.authorization.policy;
29
30 import java.io.File  ;
31 import java.io.FileInputStream ;
32 import java.io.FileNotFoundException ;
33 import java.io.IOException ;
34
35 import java.security.CodeSource ;
36 import java.security.PermissionCollection ;
37 import java.security.Policy ;
38 import java.security.ProtectionDomain ;
39
40 import java.util.Properties ;
41 import java.util.logging.Level ;
42 import java.util.logging.Logger ;
43
44
45
53 public abstract class JGuardPolicy extends java.security.Policy {
54
55 private static final String LIB = "lib";
56 private static final String SECURITY = "security";
57 private static final String J_GUARD_POLICY = "jGuard.policy";
58 private static final String JGUARD_POLICY_LOCATION = File.separator + JGuardPolicy.LIB + File.separator + JGuardPolicy.SECURITY + File.separator + JGuardPolicy.J_GUARD_POLICY;
59 private static final String DEFAULT_POLICY = "defaultPolicy";
60 private static final String JAVA_HOME = "java.home";
61 protected static Policy defaultPolicy;
63 private static Class policyClass;
65 private static Logger logger = Logger.getLogger(JGuardPolicy.class.getName());
66 protected final static String version = "1.0.0";
67
68
69
72 protected void loadDefaultPolicy() {
73 if (System.getSecurityManager() == null) {
75 String javaHome = System.getProperty(JGuardPolicy.JAVA_HOME);
76 Properties props = new Properties ();
77 String defPolicy = null;
78
79 try {
80 props.load(new FileInputStream (new File (javaHome + JGuardPolicy.JGUARD_POLICY_LOCATION)));
81 defPolicy = props.getProperty(JGuardPolicy.DEFAULT_POLICY);
82 } catch (FileNotFoundException e) {
83 logger.log(Level.CONFIG, "loadDefaultPolicy() - jGuard.policy is not found " + e.getMessage());
84 } catch (IOException e) {
85 logger.log(Level.CONFIG, "loadDefaultPolicy() - jGuard.policy is not reachable " + e.getMessage());
86 }
87
88 try {
89
90 if(defPolicy==null){
91 logger.log(Level.CONFIG,"loadDefaultPolicy() - 'defaultPolicy' field in the jGuard.Policy file is not defined ");
92 logger.log(Level.CONFIG,"loadDefaultPolicy() - jGuard try to discover the default one ");
93 policyClass = PolicyHelper.findDefaultPolicy();
95 } else {
96 policyClass = Class.forName(defPolicy);
98 }
99 } catch (ClassNotFoundException e1) {
100 logger.log(Level.CONFIG, "loadDefaultPolicy() - the default policy class cannot be found " + e1.getMessage());
101 }
102
103 }else{
105 policyClass = PolicyHelper.findDefaultPolicy();
106 }
107
108 try {
109 defaultPolicy = (Policy )policyClass.newInstance();
110 } catch (InstantiationException e2) {
111 logger.log(Level.CONFIG,"loadDefaultPolicy() - the default policy class cannot be instantiated"
112 + e2.getMessage());
113 } catch (IllegalAccessException e2) {
114 logger.log(Level.CONFIG,"loadDefaultPolicy() - the default policy class cannot be accessed "
115 + e2.getMessage());
116 }
117 }
118
119
126 public PermissionCollection getPermissions(CodeSource codesource) {
127 PermissionCollection permColl = defaultPolicy.getPermissions(codesource);
128 return permColl;
129 }
130
131 public abstract PermissionCollection getPermissions(ProtectionDomain protectionDomain);
132
133 public abstract void refresh();
134 }
135 |
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