Grabar canales chilenos con node

package.json

{
  "main": "recorder.js",
  "dependencies": {
    "fs-extra": "^0.24.0",
    "request": "^2.61.0"
  }
}

recorder.js

'use strict'

const request  = require('request')
const fs       = require('fs-extra')
const parseUrl = require('url').parse

const C13_URL  = 'http://13.live.cdn.cl/13hddesktop/13hd-1250.m3u8'
const CHV_URL  = 'http://live.hls.http.chv.ztreaming.com/chvhddesktop/chvHi.m3u8'
const TVN_URL  = 'http://edge-11-mvstr.edge.mdstrm.com/tvn-live/_definst_/smil:7cb6048ff45cb5cdf7f5fed828597fd1/chunklist_b1500000.m3u8'
const MEGA_URL = 'http://edge-11-mvstr.edge.mdstrm.com/live/smil:db6a38a0a2bffd96d01965c4d975b9fb/playlist_b1500.m3u8'

function getFilename(url) {
  const matches = url.match(/(?=[\w\d-]+\.\w{2,4}$).+/i)
  return matches ? matches[0] : null
}

function getPlaylist(url) {
  return new Promise((resolve, reject) => {
    let args = ''
    if (url.match(/edge\.mdstrm\.com/i)) {
      args += '?time=' + new Date().getTime()
    }

    request(url + args, (err, response) => {
      if (err) return reject(err)
      let urls = (response.body + '').match(/(.+?)\.ts/ig)

      // ensure filenames
      urls = urls.map(getFilename)
      resolve(urls)
    })
  })
}

function downloadChunk(url, path, filename) {
  return new Promise((resolve, reject) => {
    const filepath = './recordings/' + path + '/' + filename
    let info = {
      saved: true,
      exists: false,
      filename: filename
    }

    // check if file exists
    fs.stat(filepath, (err, stat) => {
      if (!err) {
        info.exists = true
        resolve(info)
      } else if (err.code == 'ENOENT') {
        fs.ensureFile(filepath, err => {
          request(url)
            .pipe(fs.createWriteStream(filepath))
            .on('finish', _ => resolve(info))
        })
      }
    })
  })
}

function downloadStream(pUrl, path) {
  let url = pUrl.replace(getFilename(pUrl), '')
  return getPlaylist(pUrl).then(chunks => {
    let promises = chunks.map(chunk => downloadChunk(url + chunk, path, chunk))
    return Promise.all(promises)
  }).then(data => {
    console.log('data', data)
    setTimeout(_ => downloadStream(pUrl, path), 10 * 1000)
  })
}

downloadStream(CHV_URL, 'chv')
downloadStream(C13_URL, 'c13')
downloadStream(TVN_URL, 'tvn')
downloadStream(MEGA_URL, 'mega')