forked from mirrors/gecko-dev
32 lines
1 KiB
JavaScript
32 lines
1 KiB
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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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/** Returns the domain of a URL, but safely and in ASCII; URLs without domains
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(such as about:blank) return the scheme, Unicode domains get stripped down
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to ASCII */
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"use strict";
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this.domainFromUrl = (function () {
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return function urlDomainForId(location) {
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// eslint-disable-line no-unused-vars
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let domain = location.hostname;
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if (!domain) {
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domain = location.origin.split(":")[0];
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if (!domain) {
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domain = "unknown";
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}
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}
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if (domain.search(/^[a-z0-9._-]{1,1000}$/i) === -1) {
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// Probably a unicode domain; we could use punycode but it wouldn't decode
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// well in the URL anyway. Instead we'll punt.
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domain = domain.replace(/[^a-z0-9._-]/gi, "");
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if (!domain) {
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domain = "site";
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}
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}
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return domain;
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};
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})();
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null;
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