User agent parser for node.js

useragent.js

/* global __dirname console exports process require */
// useragent parser for PC,tablet,smartphone,featurephone
/*
usage:
UAparser = require('./useragent');//require this file
result = UAparser('Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/31.0.1650.63 Chrome/31.0.1650.63 Safari/537.36');
console.log(result);

{ device: 'PC',
  os: 'Linux',
  osVersion: '',
  browser: 'Chrome',
  browserVersion: '31.0', //only A.B of A.B.C.D
  androidDeviceName: '',
  androidBuild: '',
  cpuType: 'x86_64',
  isPC: true,
  isSmartphone: false, // including all android
  isTablet: false, // iPad only
  isAndroidiOS: false,
  isFeaturePhone: false,
  isJapaneseFeaturePhone: false,
  isGlobalFeaturePhone: false,
  isGame: false,
  isTextBrowser: false,
  is64bitversion: true,
  isUnixLike: true }
*/

var unknownArr = ['unknown','unknown','unknown','unknown'];
function genericBrowser(UAstr) {
	var browserName = 'unknown';
	var browserVersion = 'unknown';
	
	if (UAstr.indexOf('Chrome')!==-1) {
		browserName = 'Chrome';
		browserVersion = (/Chrome\/(\d+\.\d+)/g.exec(UAstr)||unknownArr)[1];
	}else if (UAstr.indexOf('Firefox')!==-1) {
		browserName = 'Firefox';
		browserVersion = (/Firefox\/(\d+\.\d+)/g.exec(UAstr)||unknownArr)[1];
	}else if (UAstr.indexOf('Opera')!==-1) {
		browserName = 'Opera';
		browserVersion = (/Opera[\s\/](\d+\.\d+)/g.exec(UAstr)||unknownArr)[1];
	}else if (UAstr.indexOf('Lunascape')!==-1) {
		browserName = 'Opera';
		browserVersion = (/Lunascape (\d+\.\d+)/g.exec(UAstr)||unknownArr)[1];
	}else if (UAstr.indexOf('Firefox')!==-1) {
		browserName = 'Konqueror';
		browserVersion = (/Konqueror\/(\d+\.\d+)/g.exec(UAstr)||unknownArr)[1];
	}else if (UAstr.indexOf('Sleipnir')!==-1) {
		browserName = 'Sleipnir';
		browserVersion = (/Sleipnir\/(\d+\.\d+)/g.exec(UAstr)||unknownArr)[1];
	}else if (UAstr.indexOf('Safari')!==-1) {
		browserName = 'Safari';
		browserVersion = 'unknown';
	}else if (UAstr.indexOf('MSIE')!==-1) {
		browserName = 'IE';
		browserVersion = (/MSIE (\d+\.\d+);/.exec(UAstr)||unknownArr)[1];
	}else if (UAstr.indexOf('Trident/7')!==-1) {
		browserName = 'IE';
		browserVersion = '11';
	}else if (UAstr.indexOf('NetFront')!==-1) {
		browserName = 'NetFront';
		browserVersion = (/NetFront\/(\d+\.\d+)/g.exec(UAstr)||unknownArr)[1];
	}
	return [browserName,browserVersion];
		
}
function detectWindowsOS(UAstr) {
	var windowsVer = 'unknown';
	if (UAstr.indexOf('Windows 95')!==-1) {
		windowsVer = '95';
	}else if (UAstr.indexOf('Windows 98')!==-1) {
		windowsVer = '98';
	}else if (UAstr.indexOf('Windows ME')!==-1) {
		windowsVer = 'Me';
	}else if (UAstr.indexOf('Windows 2000')!==-1) {
		windowsVer = '2000';
	}else if (UAstr.indexOf('NT 5.0')!==-1) {
		windowsVer = '2000';
	}else if (UAstr.indexOf('Windows XP')!==-1) {
		windowsVer = 'XP';
	}else if (UAstr.indexOf('NT 5.1')!==-1) {
		windowsVer = 'XP';
	}else if (UAstr.indexOf('NT 6.0')!==-1) {
		windowsVer = 'Vista';
	}else if (UAstr.indexOf('NT 6.1')!==-1) {
		windowsVer = '7';
	}else if (UAstr.indexOf('NT 6.2')!==-1) {
		windowsVer = '8';
	}
	return windowsVer;
}
function UAparse(UAstr) {
	var ret = {
		device:'unknown',//PC/Android/iPhone/iPad/iPod/
		os:'unknown',
		osVersion:'unknown',
		browser:'unknown',
		browserVersion:'unknown',
		androidDeviceName:'',
		androidBuild: '',
		cpuType:'unknown',
		isPC:false,
		isSmartphone:false,//including iPod touch, all android, etc...
		isTablet:false,//iPad only
		isAndroidiOS:false,
		isFeaturePhone:false,
		isJapaneseFeaturePhone:false,//docomo,au,softbank,willcom,emobile
		isGlobalFeaturePhone:false,
		isGame:false,
		isTextBrowser:false,
		is64bitversion:false,
		isUnixLike:false
	};
	var genericBrowserRet = genericBrowser(UAstr);
	ret.browser = genericBrowserRet[0];
	ret.browserVersion = genericBrowserRet[1];
	//Android
	if (UAstr.indexOf('Android')!==-1) {
		var deviceNameReg = /Android (\d+\.\d+[^ ^;]*);\s? (.+?) Build\/([^)]+)/;
		var deviceNameRet = deviceNameReg.exec(UAstr);
		ret.device = 'Android';
		ret.os = 'Android';
		if (deviceNameRet) {
			ret.osVersion = deviceNameRet[1];
			ret.androidDeviceName = deviceNameRet[2].split(' ')[deviceNameRet[2].split(' ').length-1];
			ret.androidBuild = deviceNameRet[3];
		}
		if(ret.browser === 'Safari'){
			ret.browser = 'Default';
		}
		ret.isSmartphone = true;
		ret.isAndroidiOS = true;
		//console.log(ret);
	}else if (UAstr.indexOf('iPhone OS')!==-1) {//iPhone & iPod
		ret.device = UAstr.indexOf('iPod')!==-1 ? 'iPod' : 'iPhone';
		ret.os = 'iOS';
		ret.osVersion = (/iPhone OS (\w+){1,3}/g.exec(UAstr)||unknownArr)[1].replace(/_/g,'.');
		ret.isSmartphone = true;
		
		//if () {//Chrome
	}else if (UAstr.indexOf('iPad')!==-1) {//iPad
		ret.device = 'iPad';
		ret.os = 'iOS';
		ret.osVersion = (/CPU OS (\w+){1,3}/g.exec(UAstr)||unknownArr)[1].replace(/_/g,'.');
		ret.isTablet = true;
	}else if (UAstr.indexOf('Windows Phone')!==-1) {//Windows phone
		ret.device = 'WindowsPhone';
		ret.os = 'WindowsPhone';
		ret.isSmartphone = true;
		//version
	}else if (UAstr.indexOf('BlackBerry')!==-1){
		ret.device = 'BlackBerry';
		ret.os = 'BlackBerry';
		//ret.osVersion =
		
	}else if (UAstr.indexOf('Windows')!==-1) {//Windows PC
		ret.device = 'PC';
		ret.os = 'Windows';
		ret.osVersion = detectWindowsOS(UAstr);
		ret.isPC = true;
	}else if (UAstr.indexOf('Mac OS X')!==-1) {//Mac OS X
		ret.device = 'PC';
		ret.os = 'MacOSX';
		ret.osVersion = (/OS X (\w+){1,3}/g.exec(UAstr)||unknownArr)[1].replace(/_/g,'.');
		ret.isPC = true;
		ret.isUnixLike = true;
	}else if (UAstr.indexOf('Mac')!==-1) {//old Macintosh
		ret.device = 'PC';
		ret.os = 'Machintosh';
		ret.osVersion = 'unknown';
		ret.isPC = true;
	}else if (UAstr.indexOf('Linux')!==-1) {//Linux
		ret.device = 'PC';
		ret.os = 'Linux';
		ret.osVersion = '';
		ret.isPC = true;
		ret.isUnixLike = true;
	}else if (UAstr.indexOf('BSD')!==-1) {//*BSD
		ret.device = 'PC';
		ret.os = (/ (\w+BSD)/g.exec(UAstr)||unknownArr)[1];
		ret.osVersion = '';
		ret.isPC = true;
		ret.isUnixLike = true;
	}else if (UAstr.indexOf('DoCoMo')!==-1) {//Docomo ktai
		ret.device = 'Docomo';
		ret.browser = 'imode';
		ret.isFeaturePhone = true;
		ret.isJapaneseFeaturePhone = true;
	}else if (UAstr.indexOf('UP.Browser')!==-1) {//au ktai
		ret.device = 'au';
		ret.browser = 'EZweb';
		ret.isFeaturePhone = true;
		ret.isJapaneseFeaturePhone = true;
	}else if (UAstr.indexOf('SoftBank')!==-1||UAstr.indexOf('Vodafone')!==-1||UAstr.indexOf('J-PHONE')!==-1) {//Softbank ktai
		ret.device = 'Softbank';
		ret.browser = 'Y!ktai';
		ret.isFeaturePhone = true;
		ret.isJapaneseFeaturePhone = true;
	}else if (UAstr.indexOf('WILLCOM')!==-1) {//willcom ktai
		ret.device = 'Willcom';
		ret.browser = 'willcom';
		ret.isFeaturePhone = true;
		ret.isJapaneseFeaturePhone = true;
	}else if (UAstr.indexOf('emobile')!==-1) {//emobile ktai
		ret.device = 'Emobile';
		ret.browser = 'EMnet';
		ret.isFeaturePhone = true;
		ret.isJapaneseFeaturePhone = true;
	}else if (UAstr.indexOf('Nintendo Wii')!==-1) {//Wii
		ret.device = 'Wii';
		ret.isGame = true;
	}else if (UAstr.indexOf('Nintendo 3DS')!==-1) {//3DS
		ret.device = '3DS';
		ret.isGame = true;
	}else if (UAstr.indexOf('PlayStation Portable')!==-1){//PSP
		ret.device = 'PSP';
		ret.isGame = true;
	}else if (UAstr.indexOf('MIDP')!==-1 || UAstr.indexOf('Nokia')!==-1){// global feature phone
		ret.device = 'Phone';
		ret.isGlobalFeaturePhone = true;
	}else if (UAstr.indexOf('w3m')!==-1){
		ret.browserName = 'w3m';
		ret.browserVersion = (/w3m\/(\d+\.\d+)/g.exec(UAstr)||unknownArr)[1];
		ret.isTextBrowser = true;
	}else if (UAstr.indexOf('Lynx')!==-1){
		ret.browserName = 'Lynx';
		ret.browserVersion = (/Lynx\/(\d+\.\d+\.\d+)/g.exec(UAstr)||unknownArr)[1];
		ret.isTextBrowser = true;
	}

	
	//CPU type
	if (UAstr.indexOf('Win64')!==-1 || UAstr.indexOf('WOW64')!==-1 || UAstr.indexOf('x86_64')!==-1 || UAstr.indexOf('x64')!==-1){
		ret.is64bitversion = true;
		ret.cpuType = 'x86_64';
	}else if (UAstr.indexOf('i686')!==-1 || UAstr.indexOf('x86')!==-1){
		ret.cpuType = 'x86';
	}else if (UAstr.indexOf('PPC')!==-1 || UAstr.indexOf('PowerPC')!==-1){
		ret.cpuType = 'ppc';
	}else if (UAstr.toUpperCase().indexOf('ARM')!==-1){
		ret.cpuType = 'arm';
	}else if(ret.os === 'Windows'){
		ret.cpuType = 'x86';
	}
	
	return ret;
}

module.exports = UAparse;