2019-10-20 07:00:08 -04:00
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<?php
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2020-02-09 09:45:36 -05:00
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/**
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2021-03-29 02:40:20 -04:00
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* @copyright Copyright (C) 2010-2021, the Friendica project
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2020-02-09 09:45:36 -05:00
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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2019-10-20 07:00:08 -04:00
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namespace Friendica\Module\Diaspora;
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use Friendica\BaseModule;
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use Friendica\DI;
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2019-10-20 07:00:08 -04:00
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use Friendica\Model\User;
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use Friendica\Network\HTTPException;
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use Friendica\Protocol\Diaspora;
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use Friendica\Util\Network;
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use Psr\Log\LoggerInterface;
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/**
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* This module is part of the Diaspora protocol.
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* It is used for receiving single posts either for public or for a specific user.
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*/
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class Receive extends BaseModule
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{
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/** @var LoggerInterface */
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private static $logger;
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2019-11-05 16:48:54 -05:00
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public static function init(array $parameters = [])
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{
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self::$logger = DI::logger();
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2019-10-20 07:00:08 -04:00
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}
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2019-11-05 16:48:54 -05:00
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public static function post(array $parameters = [])
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{
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$enabled = DI::config()->get('system', 'diaspora_enabled', false);
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2019-10-20 07:00:08 -04:00
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if (!$enabled) {
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self::$logger->info('Diaspora disabled.');
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throw new HTTPException\ForbiddenException(DI::l10n()->t('Access denied.'));
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2019-10-20 07:00:08 -04:00
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}
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2021-10-26 11:42:49 -04:00
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if ($parameters['type'] === 'public') {
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self::receivePublic();
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} else if ($parameters['type'] === 'users') {
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self::receiveUser($parameters['guid']);
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}
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}
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/**
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* Receive a public Diaspora posting
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*
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* @throws HTTPException\InternalServerErrorException
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* @throws \ImagickException
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*/
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private static function receivePublic()
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{
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self::$logger->info('Diaspora: Receiving post.');
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$msg = self::decodePost();
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self::$logger->info('Diaspora: Dispatching.');
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Diaspora::dispatchPublic($msg);
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}
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/**
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* Receive a Diaspora posting for a user
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*
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* @param string $guid The GUID of the importer
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*
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* @throws HTTPException\InternalServerErrorException
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* @throws \ImagickException
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*/
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private static function receiveUser(string $guid)
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{
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self::$logger->info('Diaspora: Receiving post.');
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$importer = User::getByGuid($guid);
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2019-10-21 05:34:47 -04:00
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$msg = self::decodePost(false, $importer['prvkey'] ?? '');
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self::$logger->info('Diaspora: Dispatching.');
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if (Diaspora::dispatch($importer, $msg)) {
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throw new HTTPException\OKException();
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} else {
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throw new HTTPException\InternalServerErrorException();
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}
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}
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/**
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* Decodes a Diaspora message based on the posted data
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*
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* @param string $privKey The private key of the importer
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* @param bool $public True, if the post is public
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*
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* @return array
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* @throws HTTPException\InternalServerErrorException
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* @throws \ImagickException
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*/
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private static function decodePost(bool $public = true, string $privKey = '')
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{
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if (empty($_POST['xml'])) {
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$postdata = Network::postdata();
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if (empty($postdata)) {
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throw new HTTPException\InternalServerErrorException('Missing postdata.');
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}
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self::$logger->info('Diaspora: Message is in the new format.');
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$msg = Diaspora::decodeRaw($postdata, $privKey);
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} else {
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$xml = urldecode($_POST['xml']);
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self::$logger->info('Diaspora: Decode message in the old format.');
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$msg = Diaspora::decode($xml, $privKey);
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if ($public && !$msg) {
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self::$logger->info('Diaspora: Decode message in the new format.');
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$msg = Diaspora::decodeRaw($xml, $privKey);
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}
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}
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2019-10-21 11:29:53 -04:00
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self::$logger->info('Diaspora: Post decoded.');
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2020-06-29 16:22:00 -04:00
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self::$logger->debug('Diaspora: Decoded message.', ['msg' => $msg]);
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if (!is_array($msg)) {
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throw new HTTPException\InternalServerErrorException('Message is not an array.');
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}
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return $msg;
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}
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}
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