puppeteer.js

const puppeteer = require('puppeteer');
var app = require('express')();
const insEmail = require('./config.js')[app.get('env')].insEmail;
const insPass = require('./config.js')[app.get('env')].insPass;
const insCookies = require('./config.js')[app.get('env')].insCookies;
const usernameSelector = 'input[name="username"]';
const passwordSelector = 'input[name="password"]';
const loginBtn = 'button[type="submit"]';
const storiesCountClassSelector = '#react-root > section > div > div > section > div > div:nth-child(1)';
const nextStorySelector = '.coreSpriteRightChevron';
const userAgent = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3239.108 Safari/537.36';
let browserWSEndpoint = null;

async function getStories(url) {
  try {
    let storiesUrl = '';
    let baseUrl = 'https://www.instagram.com/';
    let targetHomeUrl = '';
    let imgUrls = [];
    let username = '';
    if(url.indexOf('/login/') === -1) {
      username = url.slice(url.lastIndexOf('.com/')+5);
      url = `https://www.instagram.com/accounts/login/?next=%2F${username}%2F`;
      storiesUrl = `https://www.instagram.com/stories/${username}`;
      targetHomeUrl = `https://www.instagram.com/${username}/`;
    }

    if (!browserWSEndpoint) {
      const browser = await puppeteer.launch({
        //headless: false,
        args: [
          // '--proxy-server="direct://"',
          // '--proxy-bypass-list=*',
          '--no-sandbox',
          '--disable-setuid-sandbox'
        ]
      });
      browserWSEndpoint = await browser.wsEndpoint();
    }
    const browser = await puppeteer.connect({ browserWSEndpoint });
    // const browser = await puppeteer.launch({
    //   //headless: true,
    //   headless: false,
    //   args: [
    //     // '--proxy-server="direct://"',
    //     // '--proxy-bypass-list=*',
    //     '--no-sandbox',
    //     '--disable-setuid-sandbox'
    //   ]
    // });

    const cookie = {
      name: "sessionid",
      value: insCookies,
      path: "/",
      domain: ".instagram.com",
    };

    const page = await browser.newPage();
    await page.setCookie(cookie);
    await page.setUserAgent(userAgent);

    await page.goto(url, { waitUntil: 'networkidle0' });

    if (await page.$(usernameSelector)){
      // login
      await page.click(usernameSelector);
      await page.keyboard.type(insEmail);
      await page.click(passwordSelector);
      await page.keyboard.type(insPass);
      await page.click(loginBtn).catch(e => e);

      // // get image urls
      await page.waitForNavigation();

      currentPage = await page.url();
      if (currentPage.search(/\/challenge\//) !== -1) {
        await page.close();
        return new Promise(function (resolve, reject) {
          imgUrls.push(`請重新驗證帳號喔QQ`);
          resolve(imgUrls);
        });
      }
    }

    await page.goto(storiesUrl, { waitUntil: 'load' });
    if (await page.url() === targetHomeUrl) {
      await page.close();
      return new Promise(function (resolve, reject) {
        imgUrls.push(`${username} 是私人帳號喔QQ`);
        resolve(imgUrls);
      });
    }

    await page.waitForSelector('img[decoding="sync"]');
    let countClass = await page.$eval(storiesCountClassSelector, e => e.getAttribute('class'));
    let count = await page.$$eval(`.${countClass}`, e => e.length);
    for (let index = 0; index < count; index++) {
      let img = '';
      let video = '';
      img = await page.$eval('img[decoding="sync"]', e => e.getAttribute('src')).catch(e => e);
      video = await page.$eval('video[preload="auto"] > source', e => e.getAttribute('src')).catch(e => e);
      if (typeof video === 'string') {
        imgUrls.push(video);
      } else {
        imgUrls.push(img);
      }
      await page.click(nextStorySelector);
      if(await page.url() === baseUrl) {
        break;
      }
      await page.waitForSelector('img[decoding="sync"]');
    }

    //await browser.close();
    await page.close();

    return new Promise(function (resolve, reject) {
      resolve(imgUrls);
    });
  } catch (error) {
    console.log(error);
  }
}

module.exports = {
  getStories: getStories
};