jarviscrawlercore/src/alimama/keepalive.js

jarvis crawler core

const log = require('../log');
const {sleep} = require('../utils');
const {WaitAllResponse} = require('../waitallresponse');
const {checkNeedLogin, login} = require('./utils');

/**
 * alimamaKeepalive - alimama keepalive
 * @param {object} browser - browser
 * @param {object} cfg - alimama config
 * @param {number} timeout - timeout in microseconds
 * @return {object} ret - {error, ret}
 */
async function alimamaKeepalive(browser, cfg, timeout) {
  let awaiterr = undefined;
  const page = await browser.newPage();

  const url = 'https://pub.alimama.com/promo/search/index.htm';
  checkNeedLogin(page, url);

  const waitAllResponse = new WaitAllResponse(page);

  await page
      .setViewport({
        width: 1280,
        height: 600,
        deviceScaleFactor: 1,
      })
      .catch((err) => {
        awaiterr = err;
      });

  if (awaiterr) {
    log.error('alimamaKeepalive.setViewport', awaiterr);

    await page.close();

    return {error: awaiterr.toString()};
  }

  await page
      .goto(url, {
        timeout: timeout,
      })
      .catch((err) => {
        awaiterr = err;
      });

  if (awaiterr) {
    log.error('alimamaKeepalive.goto', awaiterr);

    await page.close();

    return {error: awaiterr.toString()};
  }

  const isok = await waitAllResponse.waitDone(timeout);
  if (!isok) {
    const err = new Error('alimamaKeepalive.waitDone timeout.');

    log.error('alimamaKeepalive.waitDone ', err);

    await page.close();

    return {error: err};
  }

  waitAllResponse.reset();

  if (cfg) {
    const loginret = await login(page, cfg.username, cfg.password);
    if (loginret.err) {
      log.error('alimamaKeepalive.login ', loginret.err);

      await page.close();

      return {error: loginret.err};
    }

    const isok = await waitAllResponse.waitDone(timeout);
    if (!isok) {
      const err = new Error('alimamaKeepalive.waitDone timeout.');

      log.error('alimamaKeepalive.waitDone ', err);

      await page.close();

      return {error: err};
    }

    waitAllResponse.reset();
  }

  const rt = Math.floor(Math.random() * 20) + 10;
  await sleep(rt);

  // await page.close();

  return {ret: []};
}

exports.alimamaKeepalive = alimamaKeepalive;