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diff --git a/security/eclipse/plugins/org.argeo.security.ui/src/main/java/org/argeo/security/ui/CurrentUser.java b/security/eclipse/plugins/org.argeo.security.ui/src/main/java/org/argeo/security/ui/CurrentUser.java
new file mode 100644
index 000000000..a864c3a10
--- /dev/null
+++ b/security/eclipse/plugins/org.argeo.security.ui/src/main/java/org/argeo/security/ui/CurrentUser.java
@@ -0,0 +1,43 @@
+package org.argeo.security.ui;
+
+import java.security.AccessController;
+import java.security.Principal;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.security.auth.Subject;
+
+import org.argeo.ArgeoException;
+import org.springframework.security.Authentication;
+import org.springframework.security.GrantedAuthority;
+
+public class CurrentUser {
+	public final static String getUsername() {
+		Subject subject = getSubject();
+		if (subject == null)
+			return null;
+		Principal principal = subject.getPrincipals().iterator().next();
+		return principal.getName();
+
+	}
+
+	public final static Set<String> roles() {
+		Principal principal = getSubject().getPrincipals().iterator().next();
+		Authentication authentication = (Authentication) principal;
+		Set<String> roles = Collections.synchronizedSet(new HashSet<String>());
+		for (GrantedAuthority ga : authentication.getAuthorities()) {
+			roles.add(ga.getAuthority());
+		}
+		return Collections.unmodifiableSet(roles);
+	}
+
+	public final static Subject getSubject() {
+
+		Subject subject = Subject.getSubject(AccessController.getContext());
+		if (subject == null)
+			throw new ArgeoException("Not authenticated.");
+		return subject;
+
+	}
+}