friendica/src/Module/Acctlink.php

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<?php
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/**
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* @copyright Copyright (C) 2010-2021, the Friendica project
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*
* @license GNU AGPL version 3 or any later version
*
* 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 <https://www.gnu.org/licenses/>.
*
*/
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namespace Friendica\Module;
use Friendica\BaseModule;
use Friendica\Core\System;
use Friendica\Model\Contact;
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/**
* Redirects to another URL based on the parameter 'addr'
*/
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class Acctlink extends BaseModule
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{
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public function content(): string
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{
$addr = trim($_GET['addr'] ?? '');
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if ($addr) {
$url = Contact::getByURL($addr)['url'] ?? '';
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if ($url) {
System::externalRedirect($url['url']);
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exit();
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}
}
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return '';
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}
}