1 files changed, 99 insertions, 0 deletions
diff --git a/apps/files_versions/lib/Controller/PreviewController.php b/apps/files_versions/lib/Controller/PreviewController.php
new file mode 100644
index 00000000000..8d961f47ee6
--- /dev/null
+++ b/apps/files_versions/lib/Controller/PreviewController.php
@@ -0,0 +1,99 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.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 OCA\Files_Versions\Controller;
+
+use OCP\AppFramework\Controller;
+use OCP\AppFramework\Http;
+use OCP\AppFramework\Http\DataResponse;
+use OCP\AppFramework\Http\FileDisplayResponse;
+use OCP\Files\File;
+use OCP\Files\Folder;
+use OCP\Files\IMimeTypeDetector;
+use OCP\Files\IRootFolder;
+use OCP\Files\NotFoundException;
+use OCP\IPreview;
+use OCP\IRequest;
+
+class PreviewController extends Controller {
+
+	/** @var IRootFolder */
+	private $rootFolder;
+
+	/** @var string */
+	private $userId;
+
+	/** @var IMimeTypeDetector */
+	private $mimeTypeDetector;
+
+	/** @var IPreview */
+	private $previewManager;
+
+	public function __construct($appName,
+								IRequest $request,
+								IRootFolder $rootFolder,
+								$userId,
+								IMimeTypeDetector $mimeTypeDetector,
+								IPreview $previewManager) {
+		parent::__construct($appName, $request);
+
+		$this->rootFolder = $rootFolder;
+		$this->userId = $userId;
+		$this->mimeTypeDetector = $mimeTypeDetector;
+		$this->previewManager = $previewManager;
+	}
+
+	/**
+	 * @NoAdminRequired
+	 * @NoCSRFRequired
+	 *
+	 * @param string $file
+	 * @param int $x
+	 * @param int $y
+	 * @param string $version
+	 * @return DataResponse|FileDisplayResponse
+	 */
+	public function getPreview(
+		$file = '',
+		$x = 44,
+		$y = 44,
+		$version = ''
+	) {
+		if($file === '' || $version === '' || $x === 0 || $y === 0) {
+			return new DataResponse([], Http::STATUS_BAD_REQUEST);
+		}
+
+		try {
+			$userFolder = $this->rootFolder->getUserFolder($this->userId);
+			/** @var Folder $versionFolder */
+			$versionFolder = $userFolder->getParent()->get('files_versions');
+			$mimeType = $this->mimeTypeDetector->detectPath($file);
+			$file = $versionFolder->get($file.'.v'.$version);
+
+			/** @var File $file */
+			$f = $this->previewManager->getPreview($file, $x, $y, true, IPreview::MODE_FILL, $mimeType);
+			return new FileDisplayResponse($f, Http::STATUS_OK, ['Content-Type' => $f->getMimeType()]);
+		} catch (NotFoundException $e) {
+			return new DataResponse([], Http::STATUS_NOT_FOUND);
+		}
+	}
+}