45 lines
1.5 KiB
JavaScript
45 lines
1.5 KiB
JavaScript
/*
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* NoScript Commons Library
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* Reusable building blocks for cross-browser security/privacy WebExtensions.
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* Copyright (C) 2020-2024 Giorgio Maone <https://maone.net>
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* This program is free software: you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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'use strict';
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{
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const _impl = "randomUUID" in crypto
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? () => crypto.randomUUID()
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: () =>
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([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g,
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c => (c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4)
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.toString(16))
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;
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// if crypto API is missing or broken
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const _fallback = () =>
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'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, c => {
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let r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);
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return v.toString(16);
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});
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var uuid = function() {
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try {
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return _impl();
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} catch (e) {
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return _fallback();
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}
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}
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}
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