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28 lines
994 B
JavaScript
28 lines
994 B
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* Converts a URL-like string which might include the `*` character as a wildcard
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* to a regular expression. They are used to match against actual URLs for the
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* request blocking feature from DevTools.
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*
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* The returned regular expression is case insensitive.
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*
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* @param {string} url
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* A URL-like string which can contain one or several `*` as wildcard
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* characters.
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* @return {RegExp}
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* A regular expression which can be used to match URLs compatible with the
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* provided url "template".
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*/
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export function wildcardToRegExp(url) {
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return new RegExp(url.split("*").map(regExpEscape).join(".*"), "i");
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}
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/**
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* Escapes all special RegExp characters in the given string.
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*/
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const regExpEscape = s => {
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return s.replace(/[|\\{}()[\]^$+*?.]/g, "\\$&");
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};
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