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<?php |
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/** |
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* @copyright Copyright (c) 2016, Roeland Jago Douma <[email protected]> |
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* |
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* @author Roeland Jago Douma <[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 OCA\Files_Sharing\Controller; |
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use OCP\AppFramework\Controller; |
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use OCP\AppFramework\Http; |
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use OCP\AppFramework\Http\DataResponse; |
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use OCP\AppFramework\Http\FileDisplayResponse; |
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use OCP\Constants; |
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use OCP\Files\Folder; |
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use OCP\Files\NotFoundException; |
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use OCP\IPreview; |
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use OCP\IRequest; |
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use OCP\Share\Exceptions\ShareNotFound; |
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use OCP\Share\IManager as ShareManager; |
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class PublicPreviewController extends Controller { |
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/** @var ShareManager */ |
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private $shareManager; |
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/** @var IPreview */ |
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private $previewManager; |
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public function __construct($appName, |
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IRequest $request, |
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ShareManager $shareManger, |
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IPreview $previewManager) { |
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parent::__construct($appName, $request); |
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$this->shareManager = $shareManger; |
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$this->previewManager = $previewManager; |
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} |
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/** |
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* @PublicPage |
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* @NoCSRFRequired |
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* |
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* @param string $file |
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* @param int $x |
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* @param int $y |
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* @param string $t |
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* @param bool $a |
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* @return DataResponse|FileDisplayResponse |
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*/ |
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public function getPreview( |
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$file = '', |
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$x = 32, |
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$y = 32, |
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$t = '', |
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$a = false |
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) { |
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if ($t === '' || $x === 0 || $y === 0) { |
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return new DataResponse([], Http::STATUS_BAD_REQUEST); |
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} |
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try { |
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$share = $this->shareManager->getShareByToken($t); |
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} catch (ShareNotFound $e) { |
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return new DataResponse([], Http::STATUS_NOT_FOUND); |
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} |
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if (($share->getPermissions() & Constants::PERMISSION_READ) === 0) { |
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return new DataResponse([], Http::STATUS_FORBIDDEN); |
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} |
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try { |
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$node = $share->getNode(); |
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if ($node instanceof Folder) { |
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$file = $node->get($file); |
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} else { |
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$file = $node; |
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} |
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$f = $this->previewManager->getPreview($file, $x, $y, !$a); |
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return new FileDisplayResponse($f, Http::STATUS_OK, ['Content-Type' => $f->getMimeType()]); |
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} catch (NotFoundException $e) { |
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return new DataResponse([], Http::STATUS_NOT_FOUND); |
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} catch (\InvalidArgumentException $e) { |
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return new DataResponse([], Http::STATUS_BAD_REQUEST); |
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} |
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} |
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/** |
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* @PublicPage |
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* @NoCSRFRequired |
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* @NoSameSiteCookieRequired |
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* |
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* @param $token |
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* @return DataResponse|FileDisplayResponse |
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*/ |
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public function directLink($token) { |
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// No token no image |
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if ($token === '') { |
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return new DataResponse([], Http::STATUS_BAD_REQUEST); |
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} |
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// No share no image |
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try { |
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$share = $this->shareManager->getShareByToken($token); |
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} catch (ShareNotFound $e) { |
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return new DataResponse([], Http::STATUS_NOT_FOUND); |
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} |
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// No permissions no image |
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if (($share->getPermissions() & Constants::PERMISSION_READ) === 0) { |
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return new DataResponse([], Http::STATUS_FORBIDDEN); |
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} |
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// Password protected shares have no direct link! |
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if ($share->getPassword() !== null) { |
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return new DataResponse([], Http::STATUS_FORBIDDEN); |
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} |
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try { |
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$node = $share->getNode(); |
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if ($node instanceof Folder) { |
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// Direct link only works for single files |
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return new DataResponse([], Http::STATUS_BAD_REQUEST); |
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} |
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$f = $this->previewManager->getPreview($node, -1, -1, false); |
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return new FileDisplayResponse($f, Http::STATUS_OK, ['Content-Type' => $f->getMimeType()]); |
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} catch (NotFoundException $e) { |
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return new DataResponse([], Http::STATUS_NOT_FOUND); |
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} catch (\InvalidArgumentException $e) { |
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return new DataResponse([], Http::STATUS_BAD_REQUEST); |
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} |
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} |
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} |
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nextcloud /
server
This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.
Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.