Node.js 小打小闹之无头浏览器

const puppeteer = require('puppeteer');

(async() => {
    const browser = await puppeteer.launch({
        headless: false // 开发调试阶段，设置为false
    });
    const page = await browser.newPage();
    page.setViewport({
        width: 1376,
        height: 768,
    });
    page.on('response', async(response) => {
        if (response && response.status == 200) {
            // 判断是否加载完概览视图，然后再次进入证书页面
            if (response.url.indexOf('tpl.overview-view.html') != -1) {
                await getCertsInfo();
            }
            // 判断是否为生产环境证书列表请求
            if (response.url.indexOf('status=4&certificateStatus=0&type=distribution') 
                != -1) {
                const res = await response.json();
                if (res && res.certRequests) {
                    console.dir(calcCertsDays(res.certRequests));
                    await browser.close();
                }
            }
        }
    });

    // 跳转到苹果官网并等待页面资源加载完成
    await page.goto('https://developer.apple.com/cn/', {
        waitUntil: 'load'
    });

    // 跳转到登录页面
    await page.click('.ac-gn-account > a');
    await page.waitForSelector('#accountname', {
        timeout: 50000
    });
    await login();

    // 执行登录操作
    async function login() {
        await page.focus('#accountname');
        await page.type('开发者账号', { // 此处替换为真实账号
            delay: 100
        });
        await page.focus('#accountpassword');
        await page.type('开发者账号密码', { // 此处替换为真实密码
            delay: 100
        });
        await page.click('#submitButton2');
    }

    // 获取证书信息（等待模板加载完成后，才进入证书管理页面）
    async function getCertsInfo() {
        const CERT_ITEM_SELECTOR = '#main section.getting-started > a:nth-child(2)';
        await page.waitForSelector(CERT_ITEM_SELECTOR);
        await page.click(CERT_ITEM_SELECTOR);
        const PROD_CERT_SELECTOR = 'li.subitem > a[href*="certificate/distribution"]';
        await page.waitForSelector(PROD_CERT_SELECTOR);
        await page.click(PROD_CERT_SELECTOR);
        await page.waitForSelector(PROD_CERT_SELECTOR);
    }

    // 计算每个证书的天数
    function calcCertsDays(certs) {
        if (Array.isArray(certs)) {
            const today = new Date();
            return certs.map(cert => {
                return {
                    name: cert.name,
                    type: cert.typeString,// Apple Push Services || iOS Distribution
                    expirationDay: dateDiff(today, new Date(cert.expirationDate))
                };
            });
        }
    }

    // 计算两个日期的间隔天数
    function dateDiff(today, expirationDate) {
        return parseInt((Math.abs(expirationDate.getTime() - today.getTime())) 
          / 1000 / 60 / 60 / 24);
    }
})();