Files F122021244

isURLSameOrigin.js
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Created: Tue, Jul 15, 08:54

isURLSameOrigin.js
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	'use strict';

	import utils from './../utils.js';
	import platform from '../platform/index.js';

	export default platform.isStandardBrowserEnv ?

	// Standard browser envs have full support of the APIs needed to test
	// whether the request URL is of the same origin as current location.
	(function standardBrowserEnv() {
	const msie = /(msie\|trident)/i.test(navigator.userAgent);
	const urlParsingNode = document.createElement('a');
	let originURL;

	/**
	* Parse a URL to discover it's components
	*
	* @param {String} url The URL to be parsed
	* @returns {Object}
	*/
	function resolveURL(url) {
	let href = url;

	if (msie) {
	// IE needs attribute set twice to normalize properties
	urlParsingNode.setAttribute('href', href);
	href = urlParsingNode.href;
	}

	urlParsingNode.setAttribute('href', href);

	// urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
	return {
	href: urlParsingNode.href,
	protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
	host: urlParsingNode.host,
	search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
	hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
	hostname: urlParsingNode.hostname,
	port: urlParsingNode.port,
	pathname: (urlParsingNode.pathname.charAt(0) === '/') ?
	urlParsingNode.pathname :
	'/' + urlParsingNode.pathname
	};
	}

	originURL = resolveURL(window.location.href);

	/**
	* Determine if a URL shares the same origin as the current location
	*
	* @param {String} requestURL The URL to test
	* @returns {boolean} True if URL shares the same origin, otherwise false
	*/
	return function isURLSameOrigin(requestURL) {
	const parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;
	return (parsed.protocol === originURL.protocol &&
	parsed.host === originURL.host);
	};
	})() :

	// Non standard browser envs (web workers, react-native) lack needed support.
	(function nonStandardBrowserEnv() {
	return function isURLSameOrigin() {
	return true;
	};
	})();

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