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68 lines
2.2 KiB
68 lines
2.2 KiB
'use strict'; |
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var utils = require('./../utils'); |
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module.exports = ( |
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utils.isStandardBrowserEnv() ? |
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// Standard browser envs have full support of the APIs needed to test |
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// whether the request URL is of the same origin as current location. |
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(function standardBrowserEnv() { |
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var msie = /(msie|trident)/i.test(navigator.userAgent); |
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var urlParsingNode = document.createElement('a'); |
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var originURL; |
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/** |
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* Parse a URL to discover it's components |
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* |
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* @param {String} url The URL to be parsed |
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* @returns {Object} |
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*/ |
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function resolveURL(url) { |
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var href = url; |
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if (msie) { |
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// IE needs attribute set twice to normalize properties |
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urlParsingNode.setAttribute('href', href); |
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href = urlParsingNode.href; |
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} |
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urlParsingNode.setAttribute('href', href); |
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// urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils |
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return { |
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href: urlParsingNode.href, |
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protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '', |
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host: urlParsingNode.host, |
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search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '', |
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hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '', |
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hostname: urlParsingNode.hostname, |
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port: urlParsingNode.port, |
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pathname: (urlParsingNode.pathname.charAt(0) === '/') ? |
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urlParsingNode.pathname : |
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'/' + urlParsingNode.pathname |
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}; |
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} |
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originURL = resolveURL(window.location.href); |
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/** |
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* Determine if a URL shares the same origin as the current location |
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* |
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* @param {String} requestURL The URL to test |
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* @returns {boolean} True if URL shares the same origin, otherwise false |
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*/ |
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return function isURLSameOrigin(requestURL) { |
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var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL; |
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return (parsed.protocol === originURL.protocol && |
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parsed.host === originURL.host); |
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}; |
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})() : |
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// Non standard browser envs (web workers, react-native) lack needed support. |
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(function nonStandardBrowserEnv() { |
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return function isURLSameOrigin() { |
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return true; |
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}; |
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})() |
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);
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