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root/i-scream/projects/cms/source/util/uk/org/iscream/cms/util/ACL.java

Comparing projects/cms/source/util/uk/org/iscream/cms/util/ACL.java (file contents):
Revision 1.2 by tdb, Fri Feb 15 22:27:15 2002 UTC vs.
Revision 1.3 by tdb, Tue Mar 19 12:18:22 2002 UTC

#	Line 62 | Line 62 | public class ACL implements Serializable {
62		_defaultMode = defaultMode;
63		}
64
65	+	/**
66	+	* Construct a new Access Control List with a given
67	+	* String representation of the ACL rules. The String
68	+	* should be of the format:
69	+	*     expression:rule;expression:rule;expression:rule...
70	+	* Where expression is a wildcard to match against, and
71	+	* rule is either 'ALLOW' or 'DENY'. There is a special
72	+	* expression of 'DEFAULT' which represents the default
73	+	* rule (what should happen if no expression is matched
74	+	* when performing a check).
75	+	* The default mode is set to ALLOW if one is not
76	+	* specified.
77	+	*
78	+	* @param acl a String representation of the ACL.
79	+	*/
80	+	public ACL(String acl) {
81	+	// default to ALLOW
82	+	_defaultMode = ACL.ALLOW;
83	+	if(acl != null) {
84	+	// split the String into expression:rule parts
85	+	StringTokenizer st1 = new StringTokenizer(acl, ";");
86	+	while(st1.hasMoreTokens()) {
87	+	String token1 = st1.nextToken();
88	+	// if it doesn't have a :, it's not the correct format
89	+	if(token1.indexOf(":") != -1) {
90	+	// split into expression and rule part
91	+	StringTokenizer st2 = new StringTokenizer(token1, ":");
92	+	String expression = "";
93	+	String rule = "";
94	+	if(st2.hasMoreTokens()) {
95	+	expression = st2.nextToken();
96	+	}
97	+	else {
98	+	// mall-formed?
99	+	continue;
100	+	}
101	+	if(st2.hasMoreTokens()) {
102	+	rule = st2.nextToken();
103	+	}
104	+	else {
105	+	// mall-formed?
106	+	continue;
107	+	}
108	+	// check to see what sort of rule
109	+	if(rule.equals("ALLOW")) {
110	+	// case for special 'DEFAULT' expression
111	+	if(expression.equals("DEFAULT")) {
112	+	_defaultMode = ACL.ALLOW;
113	+	}
114	+	else {
115	+	add(ACL.ALLOW, expression);
116	+	}
117	+	}
118	+	else if(rule.equals("DENY")) {
119	+	// case for special 'DEFAULT' expression
120	+	if(expression.equals("DEFAULT")) {
121	+	_defaultMode = ACL.DENY;
122	+	}
123	+	else {
124	+	add(ACL.DENY, expression);
125	+	}
126	+	}
127	+	// if it's not ALLOW or DENY, it's not a
128	+	// proper rule, so we'll ignore it
129	+	}
130	+	}
131	+	}
132	+	}
133	+
134		//---PUBLIC METHODS---
135
136		/**

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