Script for logging in automatically each time I open the damn site cuz the session is expired very quickly.

etlab-auto-login.userscript.js

// ==UserScript==
// @name        etlab auto login
// @namespace   Violentmonkey Scripts
// @match       https://*.etlab.in/*
// @grant       GM_getValue
// @grant       GM_setValue
// @version     0.4
// @author      Dunkan <https://github.com/dcdunkan>
// @description 3/12/2024, 2:32:52 AM
// @run-at      document-end
// @homepageURL https://gist.github.com/dcdunkan/1e57baf2d913b0d93b73fa52edd11df6
// @updateURL   https://gist.githubusercontent.com/dcdunkan/1e57baf2d913b0d93b73fa52edd11df6/raw/etlab-auto-login.userscript.js
// @downloadURL https://gist.githubusercontent.com/dcdunkan/1e57baf2d913b0d93b73fa52edd11df6/raw/etlab-auto-login.userscript.js
// ==/UserScript==

(function() {
  console.log("AUTO-LOGIN USERSCRIPT IS RUNNING!");

  // LOGIN PAGE
  if (window.location.pathname.startsWith("/user/login")) {
    // setup credentials
    const hasSetup = GM_getValue("hasSetup", false);
    if (!hasSetup) {
      window.alert("Enter the username and password in the next prompts. Disable the script if you decide to stop using it.");
      let username = "", password = "";
      do username = window.prompt("Username"); while (username.trim() === "");
      do password = window.prompt("Password"); while (password.trim() === "");
      GM_setValue("username", username);
      GM_setValue("password", password);
      GM_setValue("askEverytime", window.confirm("Do you want me to ask you everytime before I login you automatically? (Choose wisely!)"));
      GM_setValue("hasSetup", true);
      window.alert("DONE! Clear this script's storage if you wanna reset all this or change credentials");
    }

    if (localStorage.getItem("triggeredByLogout") === "true")
      if (!window.confirm("You manually logged out last time. Do you want to use auto-login?"))
        return;
    else if (GM_getValue("askEverytime", false))
      if (!window.confirm("Use auto-login?"))
        return;

    localStorage.removeItem("triggeredByLogout");
    console.log("LOGGING IN...");
    document.getElementById("LoginForm_username").value = GM_getValue("username", "");
    document.getElementById("LoginForm_password").value = GM_getValue("password", "");
    document.getElementById("login-form").submit();
    console.log("LOGGED IN AUTOMATICALLY as", GM_getValue("username"));
  } else {
    const logoutLinks = document.getElementsByTagName("a");
    for (const a of logoutLinks) {
      if (a.pathname === "/user/logout") {
        const onClick = 'if(window.confirm("Do you want to log out?")){localStorage.setItem("triggeredByLogout","true");window.location.href="' + a.href + '";}';
        a.outerHTML = "<button onClick='" + onClick + "'>Logout</button>"
        break;
      }
    }
  }
  
  if (window.location.pathname.startsWith("/survey/user/answer/") &&
      Array.from(Array.from(document.getElementsByClassName("answer")).map((x) => Array.from(x.children))).map((x) => x.filter((x) => /Option\[\d+\]/.test(x.name))).flat().length &&
     window.confirm("Do you want to prefill options?")) {
    let i = 0;
    let option = 1;
    do option = Number(window.prompt((i > 0 ? "INVALID input: " : "") + "Enter 1 to 5", "x").trim()), i += 1; while (isNaN(option) || option < 1 || option > 5);
    Array.from(Array.from(document.getElementsByClassName("answer")).map((x) => Array.from(x.children))).map((x) => x.filter((x) => /Option\[\d+\]/.test(x.name))).map((x) => x[option-1].click())
  }
})();