diff --git a/java_console/shared_ui/src/com/rusefi/ui/AutoTokenUtil.java b/java_console/shared_ui/src/com/rusefi/ui/AutoTokenUtil.java
new file mode 100644
index 0000000000..8b9be7a3c1
--- /dev/null
+++ b/java_console/shared_ui/src/com/rusefi/ui/AutoTokenUtil.java
@@ -0,0 +1,10 @@
+package com.rusefi.ui;
+
+public class AutoTokenUtil {
+    public static boolean isToken(String content) {
+        content = content.trim();
+        if (content.length() != 8 + 1 + 4 + 1 + 4 + 1 + 4 + 1 + 12)
+            return false;
+        return content.charAt(8) == '-' && content.charAt(8 + 1 + 4) == '-';
+    }
+}
diff --git a/java_console/shared_ui/src/com/rusefi/ui/test/AuthTokenUtilTest.java b/java_console/shared_ui/src/com/rusefi/ui/test/AuthTokenUtilTest.java
new file mode 100644
index 0000000000..5d6100f0e3
--- /dev/null
+++ b/java_console/shared_ui/src/com/rusefi/ui/test/AuthTokenUtilTest.java
@@ -0,0 +1,18 @@
+package com.rusefi.ui.test;
+
+import com.rusefi.ui.AutoTokenUtil;
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class AuthTokenUtilTest {
+    @Test
+    public void test() {
+        assertTrue(AutoTokenUtil.isToken(" 11112222-5719-4444-84d4-111122223333   "));
+
+        assertFalse(AutoTokenUtil.isToken(" 11112222x5719-4444-84d4-111122223333   "));
+
+        assertFalse(AutoTokenUtil.isToken(" 11112222-5719-4444-84d4-11112222333   "));
+    }
+}