Code cleaning and refactoring.

[lgpl/argeo-commons.git] / org.argeo.eclipse.ui.workbench / src / org / argeo / eclipse / ui / workbench / users / internal / UsersUtils.java

diff --git a/org.argeo.eclipse.ui.workbench/src/org/argeo/eclipse/ui/workbench/users/internal/UsersUtils.java b/org.argeo.eclipse.ui.workbench/src/org/argeo/eclipse/ui/workbench/users/internal/UsersUtils.java
new file mode 100644 (file)
index 0000000..e6c29f3
--- /dev/null
+++ b/org.argeo.eclipse.ui.workbench/src/org/argeo/eclipse/ui/workbench/users/internal/UsersUtils.java
@@ -0,0 +1,64 @@
+package org.argeo.eclipse.ui.workbench.users.internal;
+
+import java.security.AccessController;
+
+import javax.naming.InvalidNameException;
+import javax.naming.ldap.LdapName;
+import javax.security.auth.Subject;
+import javax.security.auth.x500.X500Principal;
+
+import org.argeo.ArgeoException;
+import org.argeo.osgi.useradmin.LdifName;
+import org.osgi.service.useradmin.Role;
+import org.osgi.service.useradmin.User;
+
+/** Utility methods to manage user concepts in the ui.workbench bundle */
+public class UsersUtils {
+
+       public final static boolean isCurrentUser(User user) {
+               String userName = getProperty(user, LdifName.dn.name());
+               try {
+                       LdapName selfUserName = getLdapName();
+                       LdapName userLdapName = new LdapName(userName);
+                       if (userLdapName.equals(selfUserName))
+                               return true;
+                       else
+                               return false;
+               } catch (InvalidNameException e) {
+                       throw new ArgeoException("User " + user + " has an unvalid dn: "
+                                       + userName, e);
+               }
+       }
+
+       public final static LdapName getLdapName() {
+               Subject subject = Subject.getSubject(AccessController.getContext());
+               String name = subject.getPrincipals(X500Principal.class).iterator()
+                               .next().toString();
+               LdapName dn;
+               try {
+                       dn = new LdapName(name);
+               } catch (InvalidNameException e) {
+                       throw new ArgeoException("Invalid user dn " + name, e);
+               }
+               return dn;
+       }
+
+       public final static String getProperty(Role role, String key) {
+               Object obj = role.getProperties().get(key);
+               if (obj != null)
+                       return (String) obj;
+               else
+                       return "";
+       }
+
+       /*
+        * INTERNAL METHODS: Below methods are meant to stay here and are not part
+        * of a potential generic backend to manage the useradmin
+        */
+       public final static boolean notNull(String string) {
+               if (string == null)
+                       return false;
+               else
+                       return !"".equals(string.trim());
+       }
+}
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