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<?php |
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/** |
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* @author Lukas Reschke <[email protected]> |
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* |
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* @copyright Copyright (c) 2016, ownCloud, Inc. |
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* @license AGPL-3.0 |
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* |
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* This code 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, version 3, |
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* as published by the Free Software Foundation. |
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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, version 3, |
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* along with this program. If not, see <http://www.gnu.org/licenses/> |
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* |
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*/ |
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namespace OCA\FederatedFileSharing; |
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use GuzzleHttp\Exception\ClientException; |
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use GuzzleHttp\Exception\ConnectException; |
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use OCP\Http\Client\IClient; |
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use OCP\Http\Client\IClientService; |
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use OCP\ICache; |
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use OCP\ICacheFactory; |
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/** |
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* Class DiscoveryManager handles the discovery of endpoints used by Federated |
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* Cloud Sharing. |
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* |
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* @package OCA\FederatedFileSharing |
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*/ |
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class DiscoveryManager { |
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/** @var ICache */ |
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private $cache; |
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/** @var IClient */ |
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private $client; |
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/** |
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* @param ICacheFactory $cacheFactory |
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* @param IClientService $clientService |
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*/ |
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public function __construct(ICacheFactory $cacheFactory, |
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IClientService $clientService) { |
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$this->cache = $cacheFactory->create('ocs-discovery'); |
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$this->client = $clientService->newClient(); |
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} |
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/** |
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* Returns whether the specified URL includes only safe characters, if not |
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* returns false |
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* |
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* @param string $url |
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* @return bool |
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*/ |
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private function isSafeUrl($url) { |
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return (bool)preg_match('/^[\/\.A-Za-z0-9]+$/', $url); |
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} |
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/** |
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* Discover the actual data and do some naive caching to ensure that the data |
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* is not requested multiple times. |
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* |
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* If no valid discovery data is found the Nextcloud defaults are returned. |
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* |
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* @param string $remote |
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* @return array |
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*/ |
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private function discover($remote) { |
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// Check if something is in the cache |
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if($cacheData = $this->cache->get($remote)) { |
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return json_decode($cacheData, true); |
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} |
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// Default response body |
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$discoveredServices = [ |
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'webdav' => '/public.php/webdav', |
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'share' => '/ocs/v1.php/cloud/shares', |
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]; |
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// Read the data from the response body |
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try { |
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$response = $this->client->get($remote . '/ocs-provider/', [ |
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'timeout' => 10, |
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'connect_timeout' => 10, |
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]); |
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if($response->getStatusCode() === 200) { |
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$decodedService = json_decode($response->getBody(), true); |
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if(is_array($decodedService)) { |
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$endpoints = [ |
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'webdav', |
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'share', |
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]; |
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foreach($endpoints as $endpoint) { |
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if(isset($decodedService['services']['FEDERATED_SHARING']['endpoints'][$endpoint])) { |
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$endpointUrl = (string)$decodedService['services']['FEDERATED_SHARING']['endpoints'][$endpoint]; |
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if($this->isSafeUrl($endpointUrl)) { |
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$discoveredServices[$endpoint] = $endpointUrl; |
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} |
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} |
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} |
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} |
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} |
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} catch (ClientException $e) { |
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// Don't throw any exception since exceptions are handled before |
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} catch (ConnectException $e) { |
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// Don't throw any exception since exceptions are handled before |
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} |
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// Write into cache |
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$this->cache->set($remote, json_encode($discoveredServices)); |
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return $discoveredServices; |
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} |
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/** |
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* Return the public WebDAV endpoint used by the specified remote |
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* |
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* @param string $host |
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* @return string |
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*/ |
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public function getWebDavEndpoint($host) { |
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return $this->discover($host)['webdav']; |
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} |
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/** |
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* Return the sharing endpoint used by the specified remote |
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* |
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* @param string $host |
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* @return string |
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*/ |
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public function getShareEndpoint($host) { |
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return $this->discover($host)['share']; |
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} |
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} |
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nextcloud /
server
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Scrutinizer analyzes your
composer.json/composer.lockfile if available to determine the classes, and functions that are defined by your dependencies.It seems like the listed class was neither found in your dependencies, nor was it found in the analyzed files in your repository. If you are using some other form of dependency management, you might want to disable this analysis.