Login Override

Overrides the login function on a given website

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Login Override
// @version      0.3.1
// @description  Overrides the login function on a given website
// @match        http://pass.sdu.edu.cn/cas/login*
// @match        https://pass.sdu.edu.cn/cas/login*
// @match        https://pass-sdu-edu-cn-s.atrust.sdu.edu.cn:81/cas/login*
// @match        https://pass-sdu-edu-cn.atrust.sdu.edu.cn:81/cas/login*
// @match        https://webvpn.sdu.edu.cn/https/77726476706e69737468656265737421e0f6528f69236c45300d8db9d6562d/cas/login*
// @match        https://webvpn.sdu.edu.cn/http/77726476706e69737468656265737421e0f6528f69236c45300d8db9d6562d/cas/login*
// @match        http://pass.sdu.edu.cn/tpass/login*
// @match        https://pass.sdu.edu.cn/tpass/login*
// @match        https://pass-sdu-edu-cn-s.atrust.sdu.edu.cn/tpass/login*
// @match        https://pass-sdu-edu-cn.atrust.sdu.edu.cn/tpass/login*
// @match        https://webvpn.sdu.edu.cn/https/77726476706e69737468656265737421e0f6528f69236c45300d8db9d6562d/tpass/login*
// @match        https://webvpn.sdu.edu.cn/http/77726476706e69737468656265737421e0f6528f69236c45300d8db9d6562d/tpass/login*
// @grant        none
// @namespace https://greasyfork.org/users/1356177
// ==/UserScript==
const YOUR_CUSTOM_DEVICE_FINGERPRINT = "SOMETHING_UNIQUE";

(function () {
  "use strict";
  if (location.protocol === 'http:') {
    location.href = 'https:' + window.location.href.substring(window.location.protocol.length);
  } // Redirect to HTTPS if not already
  if (location.href.startsWith('https://pass-sdu-edu-cn.atrust.sdu.edu.cn:81/')) {
    location.href = location.href.replace('https://pass-sdu-edu-cn.atrust.sdu.edu.cn:81/', 'https://pass-sdu-edu-cn-s.atrust.sdu.edu.cn:81/')
  }
  if (location.href.startsWith('https://webvpn.sdu.edu.cn/http/')) {
    location.href = location.href.replace('https://webvpn.sdu.edu.cn/http/', 'https://webvpn.sdu.edu.cn/https/')
  }
  // Function to hash a string using SHA-256
  function hashString(str) {
    const encoder = new TextEncoder();
    const data = encoder.encode(str);
    const hashBuffer = crypto.subtle.digest('SHA-256', data);
    const hashArray = Array.from(new Uint8Array(hashBuffer));
    const hashHex = hashArray.map(b => b.toString(16).padStart(2, '0')).join('');
    return hashHex;
  }
  // Override the login function
  function login() {
    var $u = $("#un"),
      $p = $("#pd");

    var u = $u.val();

    if (u == "") {
      $u.focus();
      $u.parent().addClass("login_error_border");
      return;
    }

    var p = $p.val();
    if (p == "") {
      $p.focus();
      $p.parent().addClass("login_error_border");
      return;
    }

    $u.attr("disabled", "disabled");
    $p.attr("disabled", "disabled");

    var lt = $("#lt").val();

    $("#ul").val(u.length);
    $("#pl").val(p.length);
    $("#rsa").val(strEnc(u + p + lt, "1", "2", "3"));
    var details_s = YOUR_CUSTOM_DEVICE_FINGERPRINT;
    var murmur = YOUR_CUSTOM_DEVICE_FINGERPRINT;
    var murmur_s = hashString(details_s);
    var murmur_md5 = hex_md5(details_s);
    $.post(
      "device",
      {
        d: murmur,
        d_s: murmur_s,
        d_md5: murmur_md5,
        m: "1",
        u: strEnc(u, "1", "2", "3"),
        p: strEnc(p, "1", "2", "3"),
      },
      function (ret) {
        if (ret.info == "validErr" || ret.info == "notFound") {
          location.reload();
        } else if (ret.info == "bind") {
          //二次验证  绑定设备
          $("#phone").val(ret.m);
          phone(murmur_s, details_s);
        } else if (ret.info == "mobileErr") {
          //手机有误
          $("#errormsg2").show().text("尚未绑定手机");
        } else if (ret.info == "binded" || ret.info == "pass") {
          //直接提交
          $("#loginForm")[0].submit();
        }
      },
      "json"
    ).error(function (xhr, status, info) {
      if (is_weixin()) {
      }
    });
  }
  // Override the original login function with the modified one
  window.login = login;
})();