diff options
Diffstat (limited to 'app/assets/javascripts/u2f/util.js')
-rw-r--r-- | app/assets/javascripts/u2f/util.js | 42 |
1 files changed, 40 insertions, 2 deletions
diff --git a/app/assets/javascripts/u2f/util.js b/app/assets/javascripts/u2f/util.js index 9771ff935c2..5778f00332d 100644 --- a/app/assets/javascripts/u2f/util.js +++ b/app/assets/javascripts/u2f/util.js @@ -1,3 +1,41 @@ -export default function isU2FSupported() { - return window.u2f; +function isOpera(userAgent) { + return userAgent.indexOf('Opera') >= 0 || userAgent.indexOf('OPR') >= 0; +} + +function getOperaVersion(userAgent) { + const match = userAgent.match(/OPR[^0-9]*([0-9]+)[^0-9]+/); + return match ? parseInt(match[1], 10) : false; +} + +function isChrome(userAgent) { + return userAgent.indexOf('Chrom') >= 0 && !isOpera(userAgent); +} + +function getChromeVersion(userAgent) { + const match = userAgent.match(/Chrom(?:e|ium)\/([0-9]+)\./); + return match ? parseInt(match[1], 10) : false; +} + +export function canInjectU2fApi(userAgent) { + const isSupportedChrome = isChrome(userAgent) && getChromeVersion(userAgent) >= 41; + const isSupportedOpera = isOpera(userAgent) && getOperaVersion(userAgent) >= 40; + const isMobile = ( + userAgent.indexOf('droid') >= 0 || + userAgent.indexOf('CriOS') >= 0 || + /\b(iPad|iPhone|iPod)(?=;)/.test(userAgent) + ); + return (isSupportedChrome || isSupportedOpera) && !isMobile; +} + +export default function importU2FLibrary() { + if (window.u2f) { + return Promise.resolve(window.u2f); + } + + const userAgent = typeof navigator !== 'undefined' ? navigator.userAgent : ''; + if (canInjectU2fApi(userAgent) || (gon && gon.test_env)) { + return import(/* webpackMode: "eager" */ 'vendor/u2f').then(() => window.u2f); + } + + return Promise.reject(); } |