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51 lines
1.4 KiB
51 lines
1.4 KiB
var isBrowser = require('./isBrowser');
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var toInt = require('./toInt');
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var keys = require('./keys');
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exports = function(ua) {
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ua = ua || (isBrowser ? navigator.userAgent : '');
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ua = ua.toLowerCase();
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var ieVer = getVer(ua, 'msie ');
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if (ieVer)
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return {
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version: ieVer,
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name: 'ie'
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};
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if (regIe11.test(ua))
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return {
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version: 11,
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name: 'ie'
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};
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for (var i = 0, len = browsers.length; i < len; i++) {
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var name = browsers[i];
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var match = ua.match(regBrowsers[name]);
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if (match == null) continue;
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var version = toInt(match[1].split('.')[0]);
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if (name === 'opera') version = getVer(ua, 'version/') || version;
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return {
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name: name,
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version: version
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};
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}
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return {
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name: 'unknown',
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version: -1
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};
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};
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var regBrowsers = {
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edge: /edge\/([0-9._]+)/,
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firefox: /firefox\/([0-9.]+)(?:\s|$)/,
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opera: /opera\/([0-9.]+)(?:\s|$)/,
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android: /android\s([0-9.]+)/,
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ios: /version\/([0-9._]+).*mobile.*safari.*/,
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safari: /version\/([0-9._]+).*safari/,
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chrome: /(?!chrom.*opr)chrom(?:e|ium)\/([0-9.]+)(:?\s|$)/
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};
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var regIe11 = /trident\/7\./;
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var browsers = keys(regBrowsers);
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function getVer(ua, mark) {
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var idx = ua.indexOf(mark);
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if (idx > -1)
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return toInt(ua.substring(idx + mark.length, ua.indexOf('.', idx)));
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}
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module.exports = exports;
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