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1
25 package org.snipsnap.jsp;
26
27 import org.apache.taglibs.standard.lang.support.ExpressionEvaluatorManager;
28 import org.radeox.util.logging.Logger;
29 import org.snipsnap.snip.Snip;
30 import org.snipsnap.user.Roles;
31 import org.snipsnap.user.Security;
32
33 import javax.servlet.jsp.JspException  ;
34 import javax.servlet.jsp.JspTagException ;
35 import javax.servlet.jsp.jstl.core.ConditionalTagSupport;
36 import java.util.StringTokenizer ;
37
38
39 public class ObjectAuth extends ConditionalTagSupport {
40 protected Roles roles;
41 protected Snip snip;
42 protected String permission;
43
44 protected boolean invertCheck = false;
45
46 public void setPermission(String permission) {
47 this.permission = permission;
48 }
49
50 public void setSnip(String snip) {
51 try {
52 this.snip = (Snip) ExpressionEvaluatorManager.evaluate("snip", snip, Snip.class, this, pageContext);
53 } catch (JspException e) {
54 Logger.warn("unable to evaluate expression" , e);
55 }
56 }
57
58 public void setRoles(String roles) {
59 StringTokenizer tok = new StringTokenizer (roles, ":,");
60 this.roles = new Roles();
61 while (tok.hasMoreTokens()) {
62 String token = tok.nextToken();
63 this.roles.add(token);
64 }
65 }
66
67 public void setInvert(Boolean value) {
68 invertCheck = value.booleanValue();
69 }
70
71 protected boolean condition() throws JspTagException {
72 if (snip != null) {
73 boolean isTrue = Security.existsPermission(permission, snip, roles);
74 return (invertCheck ? !isTrue : isTrue);
75 } else {
76 return false;
77 }
78 }
79 }
80
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