使用puppeteer破解极验的滑动验证码

const puppeteer = require('puppeteer');const devices = require('puppeteer/DeviceDescriptors');const iPhone = devices['iPhone 6 Plus'];let timeout = function (delay) {  return new Promise((resolve, reject) => {    setTimeout(() => {      try {      resolve(1)     } catch (e) {      reject(0)     }   }, delay);  }) } let page = null let btn_position = null let times = 0 // 执行重新滑动的次数 const distanceError = [-10,2,3,5] // 距离误差 async function run() { const browser = await puppeteer.launch({  headless:false //这里我设置成false主要是为了让大家看到效果，设置为true就不会打开浏览器 }); page = await browser.newPage(); // 1.打开前端网 await page.emulate(iPhone); await page.goto('https://www.qdfuns.com/'); await timeout(1000); // 2.打开登录页面 page.click('a[data-type=login]') await timeout(1000); // 3.输入账号密码 page.type('input[data-type=email]','你的账号') await timeout(500); page.type('input[placeholder=密码]','你的密码') await timeout(1000); // 4.点击验证 page.click('.geetest_radar_tip') await timeout(1000); btn_position = await getBtnPosition(); // 5.滑动 drag(null) } /** * 计算按钮需要滑动的距离  * */  async function calculateDistance() { const distance = await page.evaluate(() => { // 比较像素,找到缺口的大概位置 function compare(document) {  const ctx1 = document.querySelector('.geetest_canvas_fullbg'); // 完成图片  const ctx2 = document.querySelector('.geetest_canvas_bg'); // 带缺口图片  const pixelDifference = 30; // 像素差  let res = []; // 保存像素差较大的x坐标  // 对比像素  for(let i=57;i<260;i++){  for(let j=1;j<160;j++) {   const imgData1 = ctx1.getContext("2d").getImageData(1*i,1*j,1,1)   const imgData2 = ctx2.getContext("2d").getImageData(1*i,1*j,1,1)   const data1 = imgData1.data;   const data2 = imgData2.data;   const res1=Math.abs(data1[0]-data2[0]);   const res2=Math.abs(data1[1]-data2[1]);   const res3=Math.abs(data1[2]-data2[2]);    if(!(res1 < pixelDifference && res2 < pixelDifference && res3 < pixelDifference)) {    if(!res.includes(i)) {     res.push(i);    }    }   }  }  // 返回像素差最大值跟最小值，经过调试最小值往左小7像素，最大值往左54像素  return {min:res[0]-7,max:res[res.length-1]-54} } return compare(document) }) return distance; } /** * 计算滑块位置 */ async function getBtnPosition() { const btn_position = await page.evaluate(() => { const {clientWidth,clientHeight} = document.querySelector('.geetest_popup_ghost') return {btn_left:clientWidth/2-104,btn_top:clientHeight/2+59} }) return btn_position; } /** * 尝试滑动按钮 * @param distance 滑动距离 * */  async function tryValidation(distance) { //将距离拆分成两段，模拟正常人的行为 const distance1 = distance - 10 const distance2 = 10 page.mouse.click(btn_position.btn_left,btn_position.btn_top,{delay:2000}) page.mouse.down(btn_position.btn_left,btn_position.btn_top) page.mouse.move(btn_position.btn_left+distance1,btn_position.btn_top,{steps:30}) await timeout(800); page.mouse.move(btn_position.btn_left+distance1+distance2,btn_position.btn_top,{steps:20}) await timeout(800); page.mouse.up() await timeout(4000); // 判断是否验证成功 const isSuccess = await page.evaluate(() => { return document.querySelector('.geetest_success_radar_tip_content') && document.querySelector('.geetest_success_radar_tip_content').innerHTML }) await timeout(1000); // 判断是否需要重新计算距离 const reDistance = await page.evaluate(() => { return document.querySelector('.geetest_result_content') && document.querySelector('.geetest_result_content').innerHTML }) await timeout(1000); return {isSuccess:isSuccess==='验证成功',reDistance:reDistance.includes('怪物吃了拼图')} } /** * 拖动滑块 * @param distance 滑动距离 * */  async function drag(distance) { distance = distance || await calculateDistance(); const result = await tryValidation(distance.min) if(result.isSuccess) { await timeout(1000); //登录 console.log('验证成功') page.click('#modal-member-login button') }else if(result.reDistance) { console.log('重新计算滑距离录，重新滑动') times = 0 await drag(null) } else { if(distanceError[times]){  times ++  console.log('重新滑动')  await drag({min:distance.max,max:distance.max+distanceError[times]}) } else {  console.log('滑动失败')  times = 0  run() } } } run()package.json{ "name": "demo", "version": "1.0.0", "dependencies": { "puppeteer": "^1.0.0" }}