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- <?php
- /**
- * @author Björn Schießle <schiessle@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * 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, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
- *
- */
- namespace OCA\FederatedFileSharing;
- use OCP\Http\Client\IClientService;
- class Notifications {
- const BASE_PATH_TO_SHARE_API = '/ocs/v1.php/cloud/shares';
- const RESPONSE_FORMAT = 'json'; // default response format for ocs calls
- /** @var AddressHandler */
- private $addressHandler;
- /** @var IClientService */
- private $httpClientService;
- /**
- * Notifications constructor.
- *
- * @param AddressHandler $addressHandler
- * @param IClientService $httpClientService
- */
- public function __construct(
- AddressHandler $addressHandler,
- IClientService $httpClientService
- ) {
- $this->addressHandler = $addressHandler;
- $this->httpClientService = $httpClientService;
- }
- /**
- * send server-to-server share to remote server
- *
- * @param string $token
- * @param string $shareWith
- * @param string $name
- * @param int $remote_id
- * @param string $owner
- * @return bool
- */
- public function sendRemoteShare($token, $shareWith, $name, $remote_id, $owner) {
- list($user, $remote) = $this->addressHandler->splitUserRemote($shareWith);
- if ($user && $remote) {
- $url = $remote . self::BASE_PATH_TO_SHARE_API . '?format=' . self::RESPONSE_FORMAT;
- $local = $this->addressHandler->generateRemoteURL();
- $fields = array(
- 'shareWith' => $user,
- 'token' => $token,
- 'name' => $name,
- 'remoteId' => $remote_id,
- 'owner' => $owner,
- 'remote' => $local,
- );
- $url = $this->addressHandler->removeProtocolFromUrl($url);
- $result = $this->tryHttpPost($url, $fields);
- $status = json_decode($result['result'], true);
- if ($result['success'] && $status['ocs']['meta']['statuscode'] === 100) {
- \OC_Hook::emit('OCP\Share', 'federated_share_added', ['server' => $remote]);
- return true;
- }
- }
- return false;
- }
- /**
- * send server-to-server unshare to remote server
- *
- * @param string $remote url
- * @param int $id share id
- * @param string $token
- * @return bool
- */
- public function sendRemoteUnShare($remote, $id, $token) {
- $url = rtrim($remote, '/') . self::BASE_PATH_TO_SHARE_API . '/' . $id . '/unshare?format=' . self::RESPONSE_FORMAT;
- $fields = array('token' => $token, 'format' => 'json');
- $url = $this->addressHandler->removeProtocolFromUrl($url);
- $result = $this->tryHttpPost($url, $fields);
- $status = json_decode($result['result'], true);
- return ($result['success'] && $status['ocs']['meta']['statuscode'] === 100);
- }
- /**
- * try http post first with https and then with http as a fallback
- *
- * @param string $url
- * @param array $fields post parameters
- * @return array
- */
- private function tryHttpPost($url, array $fields) {
- $client = $this->httpClientService->newClient();
- $protocol = 'https://';
- $result = [
- 'success' => false,
- 'result' => '',
- ];
- $try = 0;
- while ($result['success'] === false && $try < 2) {
- try {
- $response = $client->post($protocol . $url, [
- 'body' => $fields
- ]);
- $result['result'] = $response->getBody();
- $result['success'] = true;
- break;
- } catch (\Exception $e) {
- $try++;
- $protocol = 'http://';
- }
- }
- return $result;
- }
- }
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