uas-parser

A user agent string parser for Node.js. Returns detailed user agent information from the user-agent-string.info project.

The internal data used for parsing is automatically updated on weekly basis from user-agent-string.info's latest downloads.

Usage

parse(userAgent)

Parse the given user agent string. Returns an object containing browser details and operating system information.

Examples

var UASParser = require('uas-parser');

var cacheDir = __dirname + "/cache/";
var updateInterval = 0;
var automaticUpdate = false;
var uasParser = new UASParser(cacheDir, updateInterval, automaticUpdate);

uasParser.parse('Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/536.26.17 (KHTML, like Gecko) Version/6.0.2 Safari/536.26.17');
// { type: 'Browser',
//   uaFamily: 'Safari',
//   uaName: 'Safari 6.0.2',
//   uaUrl: 'http://en.wikipedia.org/wiki/Safari_%28web_browser%29',
//   uaCompany: 'Apple Inc.',
//   uaCompanyUrl: 'http://www.apple.com/',
//   uaIcon: 'http://user-agent-string.info/pub/img/ua/safari.png',
//   uaInfoUrl: 'http://user-agent-string.info/list-of-ua/browser-detail?browser=Safari',
//   osFamily: 'OS X',
//   osName: 'OS X 10.7 Lion',
//   osUrl: 'http://www.apple.com/osx/',
//   osCompany: 'Apple Computer, Inc.',
//   osCompanyUrl: 'http://www.apple.com/',
//   osIcon: 'http://user-agent-string.info/pub/img/os/macosx.png',
//   deviceType: 'Personal computer',
//   deviceIcon: 'http://user-agent-string.info/pub/img/device/desktop.png',
//   deviceInfoUrl: 'http://user-agent-string.info/list-of-ua/device-detail?device=Personal computer' }

uasParser.parse('Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)');
// { type: 'Robot',
//   uaFamily: 'bingbot',
//   uaName: 'bingbot/2.0',
//   uaUrl: 'http://www.bing.com/webmaster/help/which-crawlers-does-bing-use-8c184ec0',
//   uaCompany: 'Microsoft Corporation',
//   uaCompanyUrl: 'http://www.microsoft.com/',
//   uaIcon: 'http://user-agent-string.info/pub/img/ua/bot_msnbot.png',
//   uaInfoUrl: 'http://user-agent-string.info/list-of-ua/bot-detail?bot=bingbot',
//   osFamily: 'unknown',
//   osName: 'unknown',
//   osUrl: 'unknown',
//   osCompany: 'unknown',
//   osCompanyUrl: 'unknown',
//   osIcon: 'http://user-agent-string.info/pub/img/os/unknown.png',
//   deviceType: 'Other',
//   deviceIcon: 'http://user-agent-string.info/pub/img/device/other.png',
//   deviceInfoUrl: 'http://user-agent-string.info/list-of-ua/device-detail?device=Other' }

uasParser.parse('EventMachine HttpClient');
// { type: 'Library',
//   uaFamily: 'EventMachine',
//   uaName: 'EventMachine',
//   uaUrl: 'http://rubyeventmachine.com/',
//   uaCompany: '',
//   uaCompanyUrl: '',
//   uaIcon: 'http://user-agent-string.info/pub/img/ua/DLLicon.png',
//   uaInfoUrl: 'http://user-agent-string.info/list-of-ua/browser-detail?browser=EventMachine',
//   osFamily: 'unknown',
//   osName: 'unknown',
//   osUrl: 'unknown',
//   osCompany: 'unknown',
//   osCompanyUrl: 'unknown',
//   osIcon: 'http://user-agent-string.info/pub/img/os/unknown.png',
//   deviceType: 'Other',
//   deviceIcon: 'http://user-agent-string.info/pub/img/device/other.png',
//   deviceInfoUrl: 'http://user-agent-string.info/list-of-ua/device-detail?device=Other' }

lookup(userAgent)

Provides the same functionality as parse(userAgent), but caches the results for the given user agent string in memory. This can provide faster lookups when repeatedly parsing identical user agent strings.

The last 5,000 user agent strings seen will be cached. Cached results will remain valid for up to 1 week.

Other User Agent Parsers

• useragent: Derived from browserscope.org's user agent parser. An excellent user agent parser for web browsers, but I found user-agent-string.info's data better at categorizing and dealing with robots, software libraries, and other more esoteric user agents (at least for my use case).

Credits

All user agent data is from user-agent-string.info. Data is licensed under a Creative Commons Attribution 3.0 Unported License.