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- <?php
- /**
- * @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * 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
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
- namespace OC\Files\ObjectStore;
- use MicrosoftAzure\Storage\Blob\BlobRestProxy;
- use MicrosoftAzure\Storage\Common\Exceptions\ServiceException;
- use OCP\Files\ObjectStore\IObjectStore;
- class Azure implements IObjectStore {
- /** @var string */
- private $containerName;
- /** @var string */
- private $accountName;
- /** @var string */
- private $accountKey;
- /** @var BlobRestProxy|null */
- private $blobClient = null;
- /** @var string|null */
- private $endpoint = null;
- /** @var bool */
- private $autoCreate = false;
- /**
- * @param array $parameters
- */
- public function __construct($parameters) {
- $this->containerName = $parameters['container'];
- $this->accountName = $parameters['account_name'];
- $this->accountKey = $parameters['account_key'];
- if (isset($parameters['endpoint'])) {
- $this->endpoint = $parameters['endpoint'];
- }
- if (isset($parameters['autocreate'])) {
- $this->autoCreate = $parameters['autocreate'];
- }
- }
- /**
- * @return BlobRestProxy
- */
- private function getBlobClient() {
- if (!$this->blobClient) {
- $protocol = $this->endpoint ? substr($this->endpoint, 0, strpos($this->endpoint, ':')) : 'https';
- $connectionString = "DefaultEndpointsProtocol=" . $protocol . ";AccountName=" . $this->accountName . ";AccountKey=" . $this->accountKey;
- if ($this->endpoint) {
- $connectionString .= ';BlobEndpoint=' . $this->endpoint;
- }
- $this->blobClient = BlobRestProxy::createBlobService($connectionString);
- if ($this->autoCreate) {
- try {
- $this->blobClient->createContainer($this->containerName);
- } catch (ServiceException $e) {
- if ($e->getCode() === 409) {
- // already exists
- } else {
- throw $e;
- }
- }
- }
- }
- return $this->blobClient;
- }
- /**
- * @return string the container or bucket name where objects are stored
- */
- public function getStorageId() {
- return 'azure::blob::' . $this->containerName;
- }
- /**
- * @param string $urn the unified resource name used to identify the object
- * @return resource stream with the read data
- * @throws \Exception when something goes wrong, message will be logged
- */
- public function readObject($urn) {
- $blob = $this->getBlobClient()->getBlob($this->containerName, $urn);
- return $blob->getContentStream();
- }
- /**
- * @param string $urn the unified resource name used to identify the object
- * @param resource $stream stream with the data to write
- * @throws \Exception when something goes wrong, message will be logged
- */
- public function writeObject($urn, $stream) {
- $this->getBlobClient()->createBlockBlob($this->containerName, $urn, $stream);
- }
- /**
- * @param string $urn the unified resource name used to identify the object
- * @return void
- * @throws \Exception when something goes wrong, message will be logged
- */
- public function deleteObject($urn) {
- $this->getBlobClient()->deleteBlob($this->containerName, $urn);
- }
- public function objectExists($urn) {
- try {
- $this->getBlobClient()->getBlobMetadata($this->containerName, $urn);
- return true;
- } catch (ServiceException $e) {
- if ($e->getCode() === 404) {
- return false;
- } else {
- throw $e;
- }
- }
- }
- }
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