3 * @copyright Copyright (C) 2020, Friendica
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;
25 use Friendica\BaseModule;
27 use Friendica\Model\User;
28 use Friendica\Network\HTTPException\BadRequestException;
31 * prints the public RSA key of a user
33 class PublicRSAKey extends BaseModule
35 public static function rawContent(array $parameters = [])
39 // @TODO: Replace with parameter from router
40 if ($app->argc !== 2) {
41 throw new BadRequestException();
44 // @TODO: Replace with parameter from router
45 $nick = $app->argv[1];
47 $user = User::getByNickname($nick, ['spubkey']);
48 if (empty($user) || empty($user['spubkey'])) {
49 throw new BadRequestException();
52 $lines = explode("\n", $user['spubkey']);
54 unset($lines[count($lines)]);
56 $asnString = base64_decode(implode('', $lines));
57 $asnBase = ASN_BASE::parseASNString($asnString);
59 $m = $asnBase[0]->asnData[1]->asnData[0]->asnData[0]->asnData;
60 $e = $asnBase[0]->asnData[1]->asnData[0]->asnData[1]->asnData;
62 header('Content-type: application/magic-public-key');
63 echo 'RSA' . '.' . $m . '.' . $e;