38 lines
928 B
JavaScript
38 lines
928 B
JavaScript
// @flow
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import { parseStandardURIString } from '../base/util';
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/**
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* Normalizes a URL entered by the user.
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* FIXME: Consider adding this to base/util/uri.
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*
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* @param {string} url - The URL to validate.
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* @returns {string|null} - The normalized URL, or null if the URL is invalid.
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*/
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export function normalizeUserInputURL(url: string) {
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/* eslint-disable no-param-reassign */
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if (url) {
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url = url.replace(/\s/g, '').toLowerCase();
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const urlRegExp = new RegExp('^(\\w+://)?(.+)$');
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const urlComponents = urlRegExp.exec(url);
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if (!urlComponents[1] || !urlComponents[1].startsWith('http')) {
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url = `https://${urlComponents[2]}`;
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}
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const parsedURI = parseStandardURIString(url);
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if (!parsedURI.host) {
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return null;
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}
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return parsedURI.toString();
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}
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return url;
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/* eslint-enable no-param-reassign */
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}
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