3 * @copyright Copyright (C) 2010-2021, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Module;
24 use Friendica\BaseModule;
26 use Friendica\Model\User;
27 use Friendica\Network\HTTPException\BadRequestException;
28 use Friendica\Util\Crypto;
29 use Friendica\Util\Strings;
32 * prints the public RSA key of a user
34 class PublicRSAKey extends BaseModule
36 public function rawContent()
38 if (empty($this->parameters['nick'])) {
39 throw new BadRequestException();
42 $nick = $this->parameters['nick'];
44 $user = User::getByNickname($nick, ['spubkey']);
45 if (empty($user) || empty($user['spubkey'])) {
46 throw new BadRequestException();
49 Crypto::pemToMe($user['spubkey'], $modulus, $exponent);
51 header('Content-type: application/magic-public-key');
52 echo 'RSA' . '.' . Strings::base64UrlEncode($modulus, true) . '.' . Strings::base64UrlEncode($exponent, true);