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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 Adrian Brzezinski <[email protected]> |
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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 Roeland Jago Douma <[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 GuzzleHttp\Client; |
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use GuzzleHttp\Exception\BadResponseException; |
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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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const SWIFT_SEGMENT_SIZE = 1073741824; // 1GB |
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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, $stream) { |
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$tmpFile = \OC::$server->getTempManager()->getTemporaryFile('swiftwrite'); |
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file_put_contents($tmpFile, $stream); |
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$handle = fopen($tmpFile, 'rb'); |
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if (filesize($tmpFile) < SWIFT_SEGMENT_SIZE) { |
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$this->getContainer()->createObject([ |
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'name' => $urn, |
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'stream' => stream_for($handle), |
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]); |
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} else { |
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$this->getContainer()->createLargeObject([ |
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'name' => $urn, |
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'stream' => stream_for($handle), |
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'segmentSize' => SWIFT_SEGMENT_SIZE, |
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]); |
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} |
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} |
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/** |
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* @param string $urn the unified resource name used to identify the object |
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* @return resource stream with the read data |
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* @throws \Exception from openstack or GuzzleHttp libs when something goes wrong |
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* @throws NotFoundException if file does not exist |
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*/ |
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public function readObject($urn) { |
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try { |
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$publicUri = $this->getContainer()->getObject($urn)->getPublicUri(); |
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$tokenId = $this->swiftFactory->getCachedTokenId(); |
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$response = (new Client())->request('GET', $publicUri, |
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[ |
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'stream' => true, |
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'headers' => [ |
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'X-Auth-Token' => $tokenId, |
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'Cache-Control' => 'no-cache', |
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], |
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] |
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); |
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} catch (BadResponseException $e) { |
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if ($e->getResponse() && $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 $e; |
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} |
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} |
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return RetryWrapper::wrap($response->getBody()->detach()); |
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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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public function copyObject($from, $to) { |
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$this->getContainer()->getObject($from)->copy([ |
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'destination' => $this->getContainer()->name . '/' . $to |
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]); |
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} |
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} |
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nextcloud /
server
