test.js

const puppeteer = require('puppeteer');
const Xvfb = require('xvfb');
const xvfb = new Xvfb({ reuse: true });
const width = 3840;
const height = 2160;
const options = {
    headless: false,
    args: [
        '--enable-usermedia-screen-capturing',
        '--allow-http-screen-capture',
        '--auto-select-desktop-capture-source=puppetcam',
        '--load-extension=' + __dirname, ,
        '--disable-extensions-except=' + __dirname,
        '--disable-infobars',
        `--window-size=${width},${height}`,
        '--disable-dev-shm-usage',
    ],
};
async function record() {
    const session_id = process.argv[2];
    const time_to_record_minutes = parseInt(process.argv[3]) || 60;
    const total_waiting_in_milliseconds = time_to_record_minutes * 60 * 1000;
    if (!session_id) {
        console.log('Please provide a session_id');
        return;
    }
    xvfb.startSync();
    const classId = session_id;
    const filename = `${classId}.webm`;
    const browser = await puppeteer.launch(options);
    const pages = await browser.pages();
    const page = pages[0];
    // page.on('console', msg => {
    //     for (let i = 0; i < msg.args().length; ++i)
    //         console.log(`${i}: ${msg.args()[i]}`);
    // });
    await page._client.send('Emulation.clearDeviceMetricsOverride');
    await page.goto(`https://www.youtube.com/watch?v=CvSv5lV3v8c`, { waitUntil: 'networkidle2', timeout: 0 });
    // await page.setCookie(userTokenCookie, vcIdCookie);
    // await page.reload({ timeout: 0 });
    console.log(`
        Successfully running recording ${classId} till ${time_to_record_minutes} minutes.
    `);
    await page.waitFor(total_waiting_in_milliseconds);

    console.log(`
        Successfully finished recording for ${classId}
    `);

    await page.evaluate(({ filename, total_waiting_in_milliseconds }) => {
        window.postMessage({ type: 'SET_EXPORT_PATH', filename }, '*')
        window.postMessage({ type: 'REC_STOP', video_duration_ms: total_waiting_in_milliseconds }, '*')
    }, { filename, total_waiting_in_milliseconds })


    // Wait for download of webm to complete
    await page.waitForSelector('html.downloadComplete', { timeout: 0 })
    await page.close();
    await browser.close()
    xvfb.stopSync()
}

record();