1 files changed, 120 insertions, 0 deletions
diff --git a/lib/private/Files/ObjectStore/Azure.php b/lib/private/Files/ObjectStore/Azure.php
new file mode 100644
index 00000000000..2729bb3c037
--- /dev/null
+++ b/lib/private/Files/ObjectStore/Azure.php
@@ -0,0 +1,120 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OC\Files\ObjectStore;
+
+use MicrosoftAzure\Storage\Blob\BlobRestProxy;
+use MicrosoftAzure\Storage\Blob\Models\CreateBlockBlobOptions;
+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(array $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 $blob->getContentStream();
+	}
+
+	public function writeObject($urn, $stream, ?string $mimetype = null) {
+		$options = new CreateBlockBlobOptions();
+		if ($mimetype) {
+			$options->setContentType($mimetype);
+		}
+		$this->getBlobClient()->createBlockBlob($this->containerName, $urn, $stream, $options);
+	}
+
+	/**
+	 * @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 $e;
+			}
+		}
+	}
+
+	public function copyObject($from, $to) {
+		$this->getBlobClient()->copyBlob($this->containerName, $to, $this->containerName, $from);
+	}
+}