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/*
GoToSocial
Copyright (C) GoToSocial Authors admin@gotosocial.org
SPDX-License-Identifier: AGPL-3.0-or-later
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import isValidDomain from "is-valid-domain";
/**
* Validate the "domain" field of a form.
* @param domain
* @returns
*/
export function formDomainValidator(domain: string): string {
if (domain.length === 0) {
return "";
}
if (domain[domain.length-1] === ".") {
return "invalid domain";
}
const valid = isValidDomain(domain, {
subdomain: true,
wildcard: false,
allowUnicode: true,
topLevel: false,
});
if (valid) {
return "";
}
return "invalid domain";
}
export function urlValidator(urlStr: string): string {
if (urlStr.length === 0) {
return "";
}
let url: URL;
try {
url = new URL(urlStr);
} catch (e) {
return e.message;
}
if (url.protocol !== "http:" && url.protocol !== "https:") {
return `invalid protocol, must be http or https`;
}
return formDomainValidator(url.host);
}
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