deviceIntel.js

export const gatherDeviceIntel = () => {
  const header = [
    navigator.platform,
    navigator.userAgent,
    navigator.appVersion,
    navigator.vendor,
    window.opera
  ]
  const dataos = [
    { name: 'Windows Phone', value: 'Windows Phone', version: 'OS' },
    { name: 'Windows', value: 'Win', version: 'NT' },
    { name: 'iPhone', value: 'iPhone', version: 'OS' },
    { name: 'iPad', value: 'iPad', version: 'OS' },
    { name: 'Kindle', value: 'Silk', version: 'Silk' },
    { name: 'Android', value: 'Android', version: 'Android' },
    { name: 'PlayBook', value: 'PlayBook', version: 'OS' },
    { name: 'BlackBerry', value: 'BlackBerry', version: '/' },
    { name: 'Macintosh', value: 'Mac', version: 'OS X' },
    { name: 'Linux', value: 'Linux', version: 'rv' },
    { name: 'Palm', value: 'Palm', version: 'PalmOS' }
  ]
  const databrowser = [
    { name: 'Chrome', value: 'Chrome', version: 'Chrome' },
    { name: 'Firefox', value: 'Firefox', version: 'Firefox' },
    { name: 'Safari', value: 'Safari', version: 'Version' },
    { name: 'Internet Explorer', value: 'MSIE', version: 'MSIE' },
    { name: 'Opera', value: 'Opera', version: 'Opera' },
    { name: 'BlackBerry', value: 'CLDC', version: 'CLDC' },
    { name: 'Mozilla', value: 'Mozilla', version: 'Mozilla' }
  ]

  const matchItem = (string, data) => {
    let i = 0
    let j = 0
    let regex
    let regexv
    let match
    let matches
    let version

    for (i = 0; i < data.length; i += 1) {
      regex = new RegExp(data[i].value, 'i')
      match = regex.test(string)
      if (match) {
        regexv = new RegExp(data[i].version + '[- /:;]([\\d._]+)', 'i')
        matches = string.match(regexv)
        version = ''
        if (matches) { if (matches[1]) { matches = matches[1] } }
        if (matches) {
          matches = matches.split(/[._]+/)
          for (j = 0; j < matches.length; j += 1) {
            if (j === 0) {
              version += matches[j] + '.'
            } else {
              version += matches[j]
            }
          }
        } else {
          version = '0'
        }
        return {
          name: data[i].name,
          version: parseFloat(version)
        }
      }
    }
    return { name: 'Unknown', version: '~' }
  }

  const agent = header.join(' ')
  const os = matchItem(agent, dataos)
  const browser = matchItem(agent, databrowser)

  // return { os, browser }
  return {
    os,
    browser,
    navigator: {
      userAgent: navigator.userAgent,
      appVersion: navigator.appVersion,
      platform: navigator.platform,
      vendor: navigator.vendor
    }
  }
}