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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;
}
}
|
