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UTAS auto extend session

prevent session timeout in UTAS

  1. // ==UserScript==
  2. // @name         UTAS auto extend session
  3. // @namespace    https://fuwa.dev
  4. // @version      0.1
  5. // @description  prevent session timeout in UTAS
  6. // @author       fuwa
  7. // @match        https://utas.adm.u-tokyo.ac.jp/campusweb/*
  8. // @icon         https://www.google.com/s2/favicons?sz=64&domain=u-tokyo.ac.jp
  9. // @grant        none
  10. // ==/UserScript==
  11.  
  12. (function() {
  13.   'use strict';
  14.  
  15.   if (!document.getElementById('portaltimer')) return;
  16.   if (typeof extendSession !== 'function') return;
  17.   if (typeof session_time_out !== 'string') return;
  18.  
  19.   const timeout = parseFloat(session_time_out) * 60 * 1000;
  20.  
  21.   const chk = document.createElement('input');
  22.   chk.type = 'checkbox';
  23.   chk.checked = true;
  24.   chk.onclick = (e) => { e.stopPropagation(); };
  25.   // chk.onchange = update;
  26.  
  27.   const targ = document.querySelector('#portaltimer li.txt');
  28.   targ.insertBefore(chk, targ.firstChild);
  29.  
  30.   const update = () => {
  31.     if (!chk.checked) return;
  32.  
  33.     const t = timeout - (new Date().getTime() - session_last_acc_time.getTime());
  34.     console.log(t / 1000);
  35.     if (t < 10 * 60 * 1000) { // 10 min
  36.       extendSession();
  37.     }
  38.   };
  39.   setInterval(update, 10000);
  40.   console.log(chk);
  41. })();