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diff --git a/org.argeo.security.core/src/org/argeo/security/SecurityUtils.java b/org.argeo.security.core/src/org/argeo/security/SecurityUtils.java
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+++ b/org.argeo.security.core/src/org/argeo/security/SecurityUtils.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.argeo.security;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.springframework.security.Authentication;
+import org.springframework.security.GrantedAuthority;
+import org.springframework.security.context.SecurityContext;
+import org.springframework.security.context.SecurityContextHolder;
+import org.springframework.security.providers.anonymous.AnonymousAuthenticationToken;
+
+/** Static utilities */
+public class SecurityUtils {
+
+	private SecurityUtils() {
+	}
+
+	/** Whether the current thread has the admin role */
+	public static boolean hasCurrentThreadAuthority(String authority) {
+		SecurityContext securityContext = SecurityContextHolder.getContext();
+		if (securityContext != null) {
+			Authentication authentication = securityContext.getAuthentication();
+			if (authentication != null) {
+				for (GrantedAuthority ga : authentication.getAuthorities())
+					if (ga.getAuthority().equals(authority))
+						return true;
+			}
+		}
+		return false;
+	}
+
+	/**
+	 * @return the authenticated username or null if not authenticated /
+	 *         anonymous
+	 */
+	public static String getCurrentThreadUsername() {
+		SecurityContext securityContext = SecurityContextHolder.getContext();
+		if (securityContext != null) {
+			Authentication authentication = securityContext.getAuthentication();
+			if (authentication != null) {
+				if (authentication instanceof AnonymousAuthenticationToken) {
+					return null;
+				}
+				return authentication.getName();
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * Returns the display name of the user details (by calling toString() on
+	 * it)
+	 */
+	public static String getUserDetailsDisplayName() {
+		SecurityContext securityContext = SecurityContextHolder.getContext();
+		if (securityContext != null) {
+			Authentication authentication = securityContext.getAuthentication();
+			if (authentication != null) {
+				if (authentication instanceof AnonymousAuthenticationToken) {
+					return null;
+				}
+				Object details = authentication.getDetails();
+				if (details != null)
+					return details.toString();
+				return authentication.getName();
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * Converts an array of Spring Security {@link GrantedAuthority} to a
+	 * read-only list of strings, for portability and integration
+	 */
+	public static List<String> authoritiesToStringList(
+			GrantedAuthority[] authorities) {
+		List<String> lst = new ArrayList<String>();
+		for (GrantedAuthority ga : authorities)
+			lst.add(ga.getAuthority());
+		return Collections.unmodifiableList(lst);
+	}
+}