135 lines
3.5 KiB
PHP
135 lines
3.5 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, Roeland Jago Douma <roeland@famdouma.nl>
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*
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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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 OC\Core\Controller;
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use OCP\AppFramework\Controller;
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use OCP\AppFramework\Utility\ITimeFactory;
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use OCP\Files\File;
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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\Files\IRootFolder;
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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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class PreviewController extends Controller {
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/** @var string */
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private $userId;
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/** @var IRootFolder */
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private $root;
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/** @var IPreview */
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private $preview;
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/** @var ITimeFactory */
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private $timeFactory;
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/**
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* PreviewController constructor.
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*
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* @param string $appName
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* @param IRequest $request
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* @param IPreview $preview
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* @param IRootFolder $root
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* @param string $userId
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*/
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public function __construct($appName,
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IRequest $request,
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IPreview $preview,
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IRootFolder $root,
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$userId,
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ITimeFactory $timeFactory
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) {
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parent::__construct($appName, $request);
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$this->preview = $preview;
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$this->root = $root;
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$this->userId = $userId;
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$this->timeFactory = $timeFactory;
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}
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/**
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* @NoAdminRequired
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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 bool $a
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* @param bool $forceIcon
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* @param string $mode
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* @return DataResponse|Http\FileDisplayResponse
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*/
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public function getPreview(
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$file = '',
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$x = 32,
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$y = 32,
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$a = false,
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$forceIcon = true,
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$mode = 'fill') {
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if ($file === '' || $x === 0 || $y === 0) {
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return new DataResponse([], Http::STATUS_BAD_REQUEST);
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}
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try {
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$userFolder = $this->root->getUserFolder($this->userId);
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$file = $userFolder->get($file);
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} catch (NotFoundException $e) {
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return new DataResponse([], Http::STATUS_NOT_FOUND);
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}
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if (!($file instanceof File) || (!$forceIcon && !$this->preview->isAvailable($file))) {
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return new DataResponse([], Http::STATUS_NOT_FOUND);
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} else if (!$file->isReadable()) {
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return new DataResponse([], Http::STATUS_FORBIDDEN);
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}
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try {
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$f = $this->preview->getPreview($file, $x, $y, !$a, $mode);
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$response = new FileDisplayResponse($f, Http::STATUS_OK, ['Content-Type' => $f->getMimeType()]);
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// Let cache this!
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$response->addHeader('Pragma', 'public');
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// Cache previews for 24H
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$response->cacheFor(3600 * 24);
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$expires = new \DateTime();
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$expires->setTimestamp($this->timeFactory->getTime());
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$expires->add(new \DateInterval('P1D'));
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$response->addHeader('Expires', $expires->format(\DateTime::RFC2822));
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return $response;
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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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