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<?php |
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/** |
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* @copyright Copyright (c) 2016, ownCloud, Inc. |
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* |
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* @author Jörn Friedrich Dreyer <[email protected]> |
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* @author Morris Jobke <[email protected]> |
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* @author Robin Appelman <[email protected]> |
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* @author William Pain <[email protected]> |
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* |
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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 OC\Files\ObjectStore; |
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use function GuzzleHttp\Psr7\stream_for; |
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use Icewind\Streams\RetryWrapper; |
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use OCP\Files\NotFoundException; |
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use OCP\Files\ObjectStore\IObjectStore; |
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use OCP\Files\StorageAuthException; |
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use OpenStack\Common\Error\BadResponseError; |
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class Swift implements IObjectStore { |
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/** |
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* @var array |
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*/ |
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private $params; |
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/** @var SwiftFactory */ |
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private $swiftFactory; |
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public function __construct($params, SwiftFactory $connectionFactory = null) { |
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$this->swiftFactory = $connectionFactory ?: new SwiftFactory( |
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\OC::$server->getMemCacheFactory()->createDistributed('swift::'), |
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$params, |
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\OC::$server->getLogger() |
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); |
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$this->params = $params; |
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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 \OCP\Files\StorageNotAvailableException |
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*/ |
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private function getContainer() { |
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return $this->swiftFactory->getContainer(); |
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} |
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/** |
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* @return string the container name where objects are stored |
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*/ |
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public function getStorageId() { |
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if (isset($this->params['bucket'])) { |
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return $this->params['bucket']; |
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} |
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return $this->params['container']; |
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} |
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/** |
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* @param string $urn the unified resource name used to identify the object |
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* @param resource $stream stream with the data to write |
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* @throws \Exception from openstack lib when something goes wrong |
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*/ |
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public function writeObject($urn, $stream) { |
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$this->getContainer()->createObject([ |
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'name' => $urn, |
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'stream' => stream_for($stream) |
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]); |
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} |
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/** |
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* @param string $urn the unified resource name used to identify the object |
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* @return resource stream with the read data |
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* @throws \Exception from openstack lib when something goes wrong |
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* @throws NotFoundException if file does not exist |
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*/ |
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public function readObject($urn) { |
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try { |
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$object = $this->getContainer()->getObject($urn); |
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// we need to keep a reference to objectContent or |
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// the stream will be closed before we can do anything with it |
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$objectContent = $object->download(); |
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} catch (BadResponseError $e) { |
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if ($e->getResponse()->getStatusCode() === 404) { |
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throw new NotFoundException("object $urn not found in object store"); |
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} else { |
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throw $e; |
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} |
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} |
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$objectContent->rewind(); |
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$stream = $objectContent->detach(); |
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// save the object content in the context of the stream to prevent it being gc'd until the stream is closed |
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stream_context_set_option($stream, 'swift', 'content', $objectContent); |
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return RetryWrapper::wrap($stream); |
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} |
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/** |
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* @param string $urn Unified Resource Name |
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* @return void |
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* @throws \Exception from openstack lib when something goes wrong |
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*/ |
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public function deleteObject($urn) { |
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$this->getContainer()->getObject($urn)->delete(); |
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} |
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/** |
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* @return void |
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* @throws \Exception from openstack lib when something goes wrong |
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*/ |
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public function deleteContainer() { |
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$this->getContainer()->delete(); |
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} |
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public function objectExists($urn) { |
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return $this->getContainer()->objectExists($urn); |
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} |
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} |
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nextcloud /
server
