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<?php
/**
* @copyright Copyright (c) 2016, Roeland Jago Douma <roeland@famdouma.nl>
*
* @author Morris Jobke <hey@morrisjobke.de>
* @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 OCA\Files_Versions\Versions\IVersionManager;
use OCP\AppFramework\Controller;
use OCP\AppFramework\Http;
use OCP\AppFramework\Http\DataResponse;
use OCP\AppFramework\Http\FileDisplayResponse;
use OCP\Files\IMimeTypeDetector;
use OCP\Files\IRootFolder;
use OCP\Files\NotFoundException;
use OCP\IPreview;
use OCP\IRequest;
use OCP\IUserSession;
class PreviewController extends Controller {
/** @var IRootFolder */
private $rootFolder;
/** @var IUserSession */
private $userSession;
/** @var IMimeTypeDetector */
private $mimeTypeDetector;
/** @var IVersionManager */
private $versionManager;
/** @var IPreview */
private $previewManager;
public function __construct(
$appName,
IRequest $request,
IRootFolder $rootFolder,
IUserSession $userSession,
IMimeTypeDetector $mimeTypeDetector,
IVersionManager $versionManager,
IPreview $previewManager
) {
parent::__construct($appName, $request);
$this->rootFolder = $rootFolder;
$this->userSession = $userSession;
$this->mimeTypeDetector = $mimeTypeDetector;
$this->versionManager = $versionManager;
$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 {
$user = $this->userSession->getUser();
$userFolder = $this->rootFolder->getUserFolder($user->getUID());
$file = $userFolder->get($file);
$versionFile = $this->versionManager->getVersionFile($user, $file, $version);
$preview = $this->previewManager->getPreview($versionFile, $x, $y, true, IPreview::MODE_FILL, $versionFile->getMimetype());
return new FileDisplayResponse($preview, Http::STATUS_OK, ['Content-Type' => $preview->getMimeType()]);
} catch (NotFoundException $e) {
return new DataResponse([], Http::STATUS_NOT_FOUND);
} catch (\InvalidArgumentException $e) {
return new DataResponse([], Http::STATUS_BAD_REQUEST);
}
}
}
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