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69 lines
2.3 KiB
69 lines
2.3 KiB
4 years ago
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'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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