41 lines
1.3 KiB
JavaScript
41 lines
1.3 KiB
JavaScript
function isOpera(userAgent) {
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return userAgent.indexOf('Opera') >= 0 || userAgent.indexOf('OPR') >= 0;
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}
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function getOperaVersion(userAgent) {
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const match = userAgent.match(/OPR[^0-9]*([0-9]+)[^0-9]+/);
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return match ? parseInt(match[1], 10) : false;
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}
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function isChrome(userAgent) {
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return userAgent.indexOf('Chrom') >= 0 && !isOpera(userAgent);
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}
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function getChromeVersion(userAgent) {
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const match = userAgent.match(/Chrom(?:e|ium)\/([0-9]+)\./);
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return match ? parseInt(match[1], 10) : false;
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}
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export function canInjectU2fApi(userAgent) {
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const isSupportedChrome = isChrome(userAgent) && getChromeVersion(userAgent) >= 41;
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const isSupportedOpera = isOpera(userAgent) && getOperaVersion(userAgent) >= 40;
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const isMobile = (
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userAgent.indexOf('droid') >= 0 ||
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userAgent.indexOf('CriOS') >= 0 ||
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/\b(iPad|iPhone|iPod)(?=;)/.test(userAgent)
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);
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return (isSupportedChrome || isSupportedOpera) && !isMobile;
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}
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export default function importU2FLibrary() {
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if (window.u2f) {
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return Promise.resolve(window.u2f);
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}
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const userAgent = typeof navigator !== 'undefined' ? navigator.userAgent : '';
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if (canInjectU2fApi(userAgent) || (gon && gon.test_env)) {
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return import(/* webpackMode: "eager" */ 'vendor/u2f').then(() => window.u2f);
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}
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return Promise.reject();
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}
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