friendica/src/Module/PublicRSAKey.php

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<?php
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/**
2021-03-29 06:40:20 +00:00
* @copyright Copyright (C) 2010-2021, the Friendica project
2020-02-09 14:45:36 +00:00
*
* @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/>.
*
*/
namespace Friendica\Module;
use Friendica\BaseModule;
use Friendica\DI;
use Friendica\Model\User;
use Friendica\Network\HTTPException\BadRequestException;
use Friendica\Util\Crypto;
use Friendica\Util\Strings;
use phpseclib\File\ASN1;
/**
* prints the public RSA key of a user
*/
class PublicRSAKey extends BaseModule
{
public static function rawContent(array $parameters = [])
{
$app = DI::app();
// @TODO: Replace with parameter from router
if ($app->argc !== 2) {
throw new BadRequestException();
}
// @TODO: Replace with parameter from router
$nick = $app->argv[1];
$user = User::getByNickname($nick, ['spubkey']);
if (empty($user) || empty($user['spubkey'])) {
throw new BadRequestException();
}
Crypto::pemToMe($user['spubkey'], $modulus, $exponent);
header('Content-type: application/magic-public-key');
echo 'RSA' . '.' . Strings::base64UrlEncode($modulus, true) . '.' . Strings::base64UrlEncode($exponent, true);
exit();
}
}