☰

Pass CNKI verification code

通过知网的滑动验证码

  1. // ==UserScript==
  2. // @name         Pass CNKI verification code
  3. // @namespace    http://tampermonkey.net/
  4. // @version      2024-11-08
  5. // @description  通过知网的滑动验证码
  6. // @author       You
  7. // @match        https://kns.cnki.net/*
  8. // @icon         https://www.google.com/s2/favicons?sz=64&domain=cnki.net
  9. // @grant        none
  10. // @license MIT
  11. // ==/UserScript==
  12.  
  13. (function() {
  14.     'use strict';
  15.     function bezierPath(start, end, control1, control2, steps) {
  16.         const path = [];
  17.         for (let t = 0; t <= 1; t += 1 / steps) {
  18.             const x = (1 - t) ** 3 * start[0] +
  19.                   3 * (1 - t) ** 2 * t * control1[0] +
  20.                   3 * (1 - t) * t ** 2 * control2[0] +
  21.                   t ** 3 * end[0];
  22.             const y = (1 - t) ** 3 * start[1] +
  23.                   3 * (1 - t) ** 2 * t * control1[1] +
  24.                   3 * (1 - t) * t ** 2 * control2[1] +
  25.                   t ** 3 * end[1];
  26.             path.push([x + Math.random() * 2 - 1, y + Math.random() * 2 - 1]);
  27.         }
  28.         return path;
  29.     }
  30.  
  31.     function simulateSliderMovement(sliderElement, start, end) {
  32.         const control1 = [start[0] + (end[0] - start[0]) / 4, start[1] - 30];
  33.         const control2 = [start[0] + (end[0] - start[0]) * 3 / 4, end[1] + 30];
  34.         const path = bezierPath(start, end, control1, control2, 100);
  35.  
  36.         // 模拟按下
  37.         sliderElement.dispatchEvent(new MouseEvent('mousedown', {
  38.             clientX: start[0],
  39.             clientY: start[1],
  40.             bubbles: true
  41.         }));
  42.  
  43.         // 模拟移动
  44.         path.forEach(([x, y], i) => {
  45.             setTimeout(() => {
  46.                 sliderElement.dispatchEvent(new MouseEvent('mousemove', {
  47.                     clientX: x,
  48.                     clientY: y,
  49.                     bubbles: true
  50.                 }));
  51.             }, i * 1); // 控制速度
  52.         });
  53.  
  54.         // 模拟释放
  55.         setTimeout(() => {
  56.             sliderElement.dispatchEvent(new MouseEvent('mouseup', {
  57.                 clientX: end[0],
  58.                 clientY: end[1],
  59.                 bubbles: true
  60.             }));
  61.         }, path.length * 10);
  62.     }
  63.  
  64.     var txt = document.querySelector('.txt').textContent;
  65.     if (txt == "系统检测到您的访问行为异常，请帮助我们完成 验证"){
  66.        // 用法示例
  67.         const sliderElement = document.querySelector('.verify-move-block');
  68.         var start_x = sliderElement.getBoundingClientRect().x;
  69.         var offset = document.querySelector('.verify-gap').offsetLeft;
  70.         simulateSliderMovement(sliderElement, [start_x, 0], [start_x + offset + 30, 0]);
  71.     }
  72.     // Your code here...
  73. })();