add script to avoid automatic logout from Webkincstár

webkincstar_no_logout.user.js

@@ -0,0 +1,28 @@
+// ==UserScript==
+// @name         Webkincstár No Logout
+// @namespace    https://esoko.eu/
+// @version      0.1
+// @description  Avoid automatic logout from Webkincstár
+// @author       Bence Pőcze
+// @match        https://webkincstar.allamkincstar.gov.hu/*
+// @grant        none
+// ==/UserScript==
+
+(function() {
+    'use strict';
+
+    function calculateTimeout() {
+        const MIN_TIMEOUT = 30000;
+        const MAX_TIMEOUT = 90000;
+
+        return Math.floor(MIN_TIMEOUT + Math.random() * (MAX_TIMEOUT - MIN_TIMEOUT));
+    }
+
+    const fakeMouseEvent = new MouseEvent('mousemove', {view: window, bubbles: true, cancelable: true});
+
+    setTimeout(function moveMouse() {
+        console.debug(new Date() + ': moveMouse by Webkincstár No Logout');
+        document.body.dispatchEvent(fakeMouseEvent);
+        setTimeout(moveMouse, calculateTimeout());
+    }, calculateTimeout());
+})();