Move \OC\Files to PSR-4

1 files changed, 154 insertions, 0 deletions

diff --git a/lib/private/Files/ObjectStore/Swift.php b/lib/private/Files/ObjectStore/Swift.php
new file mode 100644
index 00000000000..4af09dca254
--- /dev/null
+++ b/lib/private/Files/ObjectStore/Swift.php
@@ -0,0 +1,154 @@
+<?php
+/**
+ * @author Jörn Friedrich Dreyer <jfd@butonic.de>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ * @author Robin Appelman <icewind@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 OC\Files\ObjectStore;
+
+use Guzzle\Http\Exception\ClientErrorResponseException;
+use OCP\Files\ObjectStore\IObjectStore;
+use OpenCloud\OpenStack;
+use OpenCloud\Rackspace;
+
+class Swift implements IObjectStore {
+	/**
+	 * @var \OpenCloud\OpenStack
+	 */
+	private $client;
+
+	/**
+	 * @var array
+	 */
+	private $params;
+
+	/**
+	 * @var \OpenCloud\ObjectStore\Service
+	 */
+	private $objectStoreService;
+
+	/**
+	 * @var \OpenCloud\ObjectStore\Resource\Container
+	 */
+	private $container;
+
+	public function __construct($params) {
+		if (!isset($params['container'])) {
+			$params['container'] = 'owncloud';
+		}
+		if (!isset($params['autocreate'])) {
+			// should only be true for tests
+			$params['autocreate'] = false;
+		}
+
+		if (isset($params['apiKey'])) {
+			$this->client = new Rackspace($params['url'], $params);
+		} else {
+			$this->client = new OpenStack($params['url'], $params);
+		}
+		$this->params = $params;
+	}
+
+	protected function init() {
+		if ($this->container) {
+			return;
+		}
+
+		// the OpenCloud client library will default to 'cloudFiles' if $serviceName is null
+		$serviceName = null;
+		if (isset($this->params['serviceName'])) {
+			$serviceName = $this->params['serviceName'];
+		}
+
+		// the OpenCloud client library will default to 'publicURL' if $urlType is null
+		$urlType = null;
+		if (isset($this->params['urlType'])) {
+			$urlType = $this->params['urlType'];
+		}
+		$this->objectStoreService = $this->client->objectStoreService($serviceName, $this->params['region'], $urlType);
+
+		try {
+			$this->container = $this->objectStoreService->getContainer($this->params['container']);
+		} catch (ClientErrorResponseException $ex) {
+			// if the container does not exist and autocreate is true try to create the container on the fly
+			if (isset($this->params['autocreate']) && $this->params['autocreate'] === true) {
+				$this->container = $this->objectStoreService->createContainer($this->params['container']);
+			} else {
+				throw $ex;
+			}
+		}
+	}
+
+	/**
+	 * @return string the container name where objects are stored
+	 */
+	public function getStorageId() {
+		return $this->params['container'];
+	}
+
+	/**
+	 * @param string $urn the unified resource name used to identify the object
+	 * @param resource $stream stream with the data to write
+	 * @throws Exception from openstack lib when something goes wrong
+	 */
+	public function writeObject($urn, $stream) {
+		$this->init();
+		$this->container->uploadObject($urn, $stream);
+	}
+
+	/**
+	 * @param string $urn the unified resource name used to identify the object
+	 * @return resource stream with the read data
+	 * @throws Exception from openstack lib when something goes wrong
+	 */
+	public function readObject($urn) {
+		$this->init();
+		$object = $this->container->getObject($urn);
+
+		// we need to keep a reference to objectContent or
+		// the stream will be closed before we can do anything with it
+		/** @var $objectContent \Guzzle\Http\EntityBody * */
+		$objectContent = $object->getContent();
+		$objectContent->rewind();
+
+		$stream = $objectContent->getStream();
+		// save the object content in the context of the stream to prevent it being gc'd until the stream is closed
+		stream_context_set_option($stream, 'swift','content', $objectContent);
+
+		return $stream;
+	}
+
+	/**
+	 * @param string $urn Unified Resource Name
+	 * @return void
+	 * @throws Exception from openstack lib when something goes wrong
+	 */
+	public function deleteObject($urn) {
+		$this->init();
+		// see https://github.com/rackspace/php-opencloud/issues/243#issuecomment-30032242
+		$this->container->dataObject()->setName($urn)->delete();
+	}
+
+	public function deleteContainer($recursive = false) {
+		$this->init();
+		$this->container->delete($recursive);
+	}
+
+}