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<?php |
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declare(strict_types=1); |
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/** |
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* @copyright Copyright (c) 2018 Robin Appelman <[email protected]> |
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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 <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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namespace OC\Files\ObjectStore; |
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use GuzzleHttp\Client; |
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use GuzzleHttp\Exception\ClientException; |
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use GuzzleHttp\Exception\ConnectException; |
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use GuzzleHttp\Exception\RequestException; |
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use GuzzleHttp\HandlerStack; |
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use OCP\Files\StorageAuthException; |
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use OCP\Files\StorageNotAvailableException; |
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use OCP\ICache; |
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use OpenStack\Common\Error\BadResponseError; |
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use OpenStack\Common\Auth\Token; |
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use OpenStack\Identity\v2\Service as IdentityV2Service; |
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use OpenStack\Identity\v3\Service as IdentityV3Service; |
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use OpenStack\OpenStack; |
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use OpenStack\Common\Transport\Utils as TransportUtils; |
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use Psr\Http\Message\RequestInterface; |
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use OpenStack\ObjectStore\v1\Models\Container; |
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class SwiftFactory { |
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private $cache; |
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private $params; |
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/** @var Container|null */ |
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private $container = null; |
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public function __construct(ICache $cache, array $params) { |
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$this->cache = $cache; |
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$this->params = $params; |
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} |
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private function getCachedToken(string $cacheKey) { |
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$cachedTokenString = $this->cache->get($cacheKey . '/token'); |
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if ($cachedTokenString) { |
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return json_decode($cachedTokenString); |
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} else { |
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return null; |
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} |
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} |
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private function cacheToken(Token $token, string $cacheKey) { |
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$this->cache->set($cacheKey . '/token', json_encode($token)); |
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} |
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/** |
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* @return OpenStack |
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* @throws StorageAuthException |
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*/ |
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private function getClient() { |
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if (isset($this->params['bucket'])) { |
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$this->params['container'] = $this->params['bucket']; |
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} |
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if (!isset($this->params['container'])) { |
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$this->params['container'] = 'owncloud'; |
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} |
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if (!isset($this->params['autocreate'])) { |
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// should only be true for tests |
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$this->params['autocreate'] = false; |
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} |
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if (isset($this->params['user']) && is_array($this->params['user'])) { |
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$userName = $this->params['user']['name']; |
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} else { |
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if (!isset($this->params['username']) && isset($this->params['user'])) { |
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$this->params['username'] = $this->params['user']; |
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} |
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$userName = $this->params['username']; |
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} |
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if (!isset($this->params['tenantName']) && isset($this->params['tenant'])) { |
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$this->params['tenantName'] = $this->params['tenant']; |
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} |
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$cacheKey = $userName . '@' . $this->params['url'] . '/' . $this->params['bucket']; |
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$token = $this->getCachedToken($cacheKey); |
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$hasToken = is_array($token) && (new \DateTimeImmutable($token['expires_at'])) > (new \DateTimeImmutable('now')); |
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if ($hasToken) { |
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$this->params['cachedToken'] = $token; |
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} |
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$httpClient = new Client([ |
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'base_uri' => TransportUtils::normalizeUrl($this->params['url']), |
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'handler' => HandlerStack::create() |
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]); |
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if (isset($this->params['user']) && isset($this->params['user']['name'])) { |
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return $this->auth(IdentityV3Service::factory($httpClient), $cacheKey); |
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} else { |
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return $this->auth(IdentityV2Service::factory($httpClient), $cacheKey); |
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} |
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} |
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/** |
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* @param IdentityV2Service|IdentityV3Service $authService |
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* @param string $cacheKey |
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* @return OpenStack |
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* @throws StorageAuthException |
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*/ |
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private function auth($authService, string $cacheKey) { |
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$this->params['identityService'] = $authService; |
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$this->params['authUrl'] = $this->params['url']; |
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$client = new OpenStack($this->params); |
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if (!isset($this->params['cachedToken'])) { |
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try { |
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$token = $authService->generateToken($this->params); |
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$this->cacheToken($token, $cacheKey); |
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} catch (ConnectException $e) { |
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throw new StorageAuthException('Failed to connect to keystone, verify the keystone url', $e); |
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} catch (ClientException $e) { |
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$statusCode = $e->getResponse()->getStatusCode(); |
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if ($statusCode === 404) { |
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throw new StorageAuthException('Keystone not found, verify the keystone url', $e); |
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} else if ($statusCode === 412) { |
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throw new StorageAuthException('Precondition failed, verify the keystone url', $e); |
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} else if ($statusCode === 401) { |
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throw new StorageAuthException('Authentication failed, verify the username, password and possibly tenant', $e); |
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} else { |
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throw new StorageAuthException('Unknown error', $e); |
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} |
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} catch (RequestException $e) { |
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throw new StorageAuthException('Connection reset while connecting to keystone, verify the keystone url', $e); |
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} |
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} |
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return $client; |
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} |
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/** |
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* @return \OpenStack\ObjectStore\v1\Models\Container |
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* @throws StorageAuthException |
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* @throws StorageNotAvailableException |
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*/ |
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public function getContainer() { |
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if (is_null($this->container)) { |
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$this->container = $this->createContainer(); |
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} |
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return $this->container; |
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} |
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/** |
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* @return \OpenStack\ObjectStore\v1\Models\Container |
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* @throws StorageAuthException |
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* @throws StorageNotAvailableException |
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*/ |
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private function createContainer() { |
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$client = $this->getClient(); |
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$objectStoreService = $client->objectStoreV1(); |
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$autoCreate = isset($this->params['autocreate']) && $this->params['autocreate'] === true; |
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try { |
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$container = $objectStoreService->getContainer($this->params['container']); |
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if ($autoCreate) { |
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$container->getMetadata(); |
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} |
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return $container; |
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} catch (BadResponseError $ex) { |
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// if the container does not exist and autocreate is true try to create the container on the fly |
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if ($ex->getResponse()->getStatusCode() === 404 && $autoCreate) { |
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return $objectStoreService->createContainer([ |
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'name' => $this->params['container'] |
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]); |
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} else { |
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throw new StorageNotAvailableException('Invalid response while trying to get container info', StorageNotAvailableException::STATUS_ERROR, $e); |
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} |
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} catch (ConnectException $e) { |
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/** @var RequestInterface $request */ |
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$request = $e->getRequest(); |
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$host = $request->getUri()->getHost() . ':' . $request->getUri()->getPort(); |
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\OC::$server->getLogger()->error("Can't connect to object storage server at $host"); |
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throw new StorageNotAvailableException("Can't connect to object storage server at $host", StorageNotAvailableException::STATUS_ERROR, $e); |
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} |
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} |
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} |
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nextcloud /
server
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