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74 lines
3.0 KiB
74 lines
3.0 KiB
2 months ago
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/*!
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* Copyright (c) 2018, Salesforce.com, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of Salesforce.com nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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"use strict";
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const psl = require("psl");
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// RFC 6761
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const SPECIAL_USE_DOMAINS = [
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"local",
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"example",
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"invalid",
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"localhost",
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"test"
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];
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const SPECIAL_TREATMENT_DOMAINS = ["localhost", "invalid"];
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function getPublicSuffix(domain, options = {}) {
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const domainParts = domain.split(".");
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const topLevelDomain = domainParts[domainParts.length - 1];
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const allowSpecialUseDomain = !!options.allowSpecialUseDomain;
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const ignoreError = !!options.ignoreError;
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if (allowSpecialUseDomain && SPECIAL_USE_DOMAINS.includes(topLevelDomain)) {
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if (domainParts.length > 1) {
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const secondLevelDomain = domainParts[domainParts.length - 2];
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// In aforementioned example, the eTLD/pubSuf will be apple.localhost
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return `${secondLevelDomain}.${topLevelDomain}`;
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} else if (SPECIAL_TREATMENT_DOMAINS.includes(topLevelDomain)) {
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// For a single word special use domain, e.g. 'localhost' or 'invalid', per RFC 6761,
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// "Application software MAY recognize {localhost/invalid} names as special, or
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// MAY pass them to name resolution APIs as they would for other domain names."
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return `${topLevelDomain}`;
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}
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}
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if (!ignoreError && SPECIAL_USE_DOMAINS.includes(topLevelDomain)) {
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throw new Error(
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`Cookie has domain set to the public suffix "${topLevelDomain}" which is a special use domain. To allow this, configure your CookieJar with {allowSpecialUseDomain:true, rejectPublicSuffixes: false}.`
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);
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}
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return psl.get(domain);
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}
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exports.getPublicSuffix = getPublicSuffix;
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