150 lines
4.1 KiB
PHP
150 lines
4.1 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 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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*
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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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