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https://github.com/superseriousbusiness/gotosocial.git
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50 lines
1.6 KiB
JavaScript
50 lines
1.6 KiB
JavaScript
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/*
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GoToSocial
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Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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"use strict";
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const isValidDomain = require("is-valid-domain");
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const psl = require("psl");
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function isValidDomainBlock(domain) {
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return isValidDomain(domain, {
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/*
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Wildcard prefix *. can be stripped since it's equivalent to not having it,
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but wildcard anywhere else in the domain is not handled by the backend so it's invalid.
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*/
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wildcard: false,
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allowUnicode: true
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});
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}
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/*
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Still can't think of a better function name for this,
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but we're checking a domain against the Public Suffix List <https://publicsuffix.org/>
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to see if we should suggest removing subdomain(s) since they're likely owned/ran by the same party
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social.example.com -> suggests example.com
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*/
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function hasBetterScope(domain) {
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const lookup = psl.get(domain);
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if (lookup && lookup != domain) {
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return lookup;
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} else {
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return false;
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}
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}
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module.exports = { isValidDomainBlock, hasBetterScope };
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