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<?php |
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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 MicrosoftAzure\Storage\Blob\BlobRestProxy; |
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use MicrosoftAzure\Storage\Common\Exceptions\ServiceException; |
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use OCP\Files\ObjectStore\IObjectStore; |
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class Azure implements IObjectStore { |
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/** @var string */ |
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private $containerName; |
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/** @var string */ |
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private $accountName; |
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/** @var string */ |
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private $accountKey; |
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/** @var BlobRestProxy|null */ |
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private $blobClient = null; |
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/** @var string|null */ |
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private $endpoint = null; |
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/** @var bool */ |
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private $autoCreate = false; |
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/** |
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* @param array $parameters |
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*/ |
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public function __construct($parameters) { |
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$this->containerName = $parameters['container']; |
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$this->accountName = $parameters['account_name']; |
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$this->accountKey = $parameters['account_key']; |
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if (isset($parameters['endpoint'])) { |
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$this->endpoint = $parameters['endpoint']; |
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} |
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if (isset($parameters['autocreate'])) { |
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$this->autoCreate = $parameters['autocreate']; |
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} |
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} |
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/** |
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* @return BlobRestProxy |
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*/ |
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private function getBlobClient() { |
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if (!$this->blobClient) { |
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$protocol = $this->endpoint ? substr($this->endpoint, 0, strpos($this->endpoint, ':')) : 'https'; |
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$connectionString = "DefaultEndpointsProtocol=" . $protocol . ";AccountName=" . $this->accountName . ";AccountKey=" . $this->accountKey; |
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if ($this->endpoint) { |
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$connectionString .= ';BlobEndpoint=' . $this->endpoint; |
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} |
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$this->blobClient = BlobRestProxy::createBlobService($connectionString); |
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if ($this->autoCreate) { |
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try { |
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$this->blobClient->createContainer($this->containerName); |
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} catch (ServiceException $e) { |
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if ($e->getCode() === 409) { |
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// already exists |
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} else { |
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throw $e; |
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} |
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} |
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} |
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} |
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return $this->blobClient; |
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} |
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/** |
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* @return string the container or bucket name where objects are stored |
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*/ |
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public function getStorageId() { |
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return 'azure::blob::' . $this->containerName; |
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} |
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/** |
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* @param string $urn the unified resource name used to identify the object |
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* @return resource stream with the read data |
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* @throws \Exception when something goes wrong, message will be logged |
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*/ |
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public function readObject($urn) { |
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$blob = $this->getBlobClient()->getBlob($this->containerName, $urn); |
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return $blob->getContentStream(); |
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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 $stream stream with the data to write |
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* @throws \Exception when something goes wrong, message will be logged |
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*/ |
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public function writeObject($urn, $stream) { |
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$this->getBlobClient()->createBlockBlob($this->containerName, $urn, $stream); |
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} |
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/** |
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* @param string $urn the unified resource name used to identify the object |
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* @return void |
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* @throws \Exception when something goes wrong, message will be logged |
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*/ |
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public function deleteObject($urn) { |
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$this->getBlobClient()->deleteBlob($this->containerName, $urn); |
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} |
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public function objectExists($urn) { |
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try { |
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$this->getBlobClient()->getBlobMetadata($this->containerName, $urn); |
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return true; |
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} catch (ServiceException $e) { |
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if ($e->getCode() === 404) { |
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return false; |
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} else { |
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throw $e; |
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} |
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} |
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} |
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} |
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nextcloud /
server
