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@ratushniak-tenexti/ua-hints

v1.0.7

Published

Generate Client Hints (Sec-CH-UA) HTTP headers that match a given browser User-Agent string.

Vulnerabilities

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  • 0Medium
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Links

Git

Maintainers

ratushniak-tenextiratushniak-tenexti

Keywords

browserchromeclient-hintsfingerprintheadershintshttpsec-ch-uauauser-agent

Readme

ua-hints

Last version Coverage Status NPM Status

It generates Sec-CH-UA-* headers for the provided 'user-agent'.

Install

$ npm install ua-hints --save

Usage

Giving an user agent as input, such as:

Mozilla/5.0 (Windows NT 10.0; Win64; x64; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.109 Safari/537.36

This library returns The User-Agent Client Hints detected:

const uaHints = require('ua-hints')

uaHint('Mozilla/5.0 (Windows NT 10.0; Win64; x64; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.109 Safari/537.36')
// {
//   'Sec-CH-UA': '"Not_A Brand";v="8", "Chromium";v="120", "Google Chrome";v="120"',
//   'Sec-CH-UA-Mobile': '?0',
//   'Sec-CH-UA-Platform': '"Windows"',
//   'Sec-CH-UA-Platform-Version': '"10"',
//   'Sec-CH-UA-Arch': '"x86"',
//   'Sec-CH-UA-Bitness': '"64"',
//   'Sec-CH-UA-Full-Version': '"120.0.6099.109"',
//   'Sec-CH-UA-Full-Version-List': '"Not_A Brand";v="8.0.0.0", "Chromium";v="120.0.6099.109", "Google Chrome";v="120.0.6099.109"',
//   'Sec-CH-UA-WoW64': '?1',
//   'Sec-CH-UA-Form-Factors': '["Desktop"]'
// }

The library implements Chromium's GREASEing strategy (¹)(²) includes intentionally incorrect data to prevent ossification attacks.

License

ua-hints © Kiko Beats, released under the MIT License. Authored and maintained by Kiko Beats with help from contributors.

kikobeats.com · GitHub Kiko Beats · Twitter @kikobeats