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<?php |
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/** |
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* @copyright Copyright (c) 2016, ownCloud, Inc. |
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* |
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* @author Andreas Fischer <[email protected]> |
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* @author Björn Schießle <[email protected]> |
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* @author Christoph Wurst <[email protected]> |
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* @author Frank Karlitschek <[email protected]> |
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* @author Jörn Friedrich Dreyer <[email protected]> |
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* @author Lukas Reschke <[email protected]> |
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* @author Morris Jobke <[email protected]> |
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* @author Piotr Filiciak <[email protected]> |
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* @author Robin Appelman <[email protected]> |
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* |
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* @license AGPL-3.0 |
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* |
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* This code 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, version 3, |
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* as published by the Free Software Foundation. |
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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, version 3, |
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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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// Check if we are a user |
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OCP\User::checkLoggedIn(); |
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\OC::$server->getSession()->close(); |
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$files = isset($_GET['files']) ? (string)$_GET['files'] : ''; |
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$dir = isset($_GET['dir']) ? (string)$_GET['dir'] : ''; |
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$files_list = json_decode($files); |
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// in case we get only a single file |
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if (!is_array($files_list)) { |
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$files_list = [$files]; |
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} |
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/** |
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* @psalm-taint-escape cookie |
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*/ |
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function cleanCookieInput(string $value): string { |
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if (strlen($value) > 32) { |
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return ''; |
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} |
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if (preg_match('!^[a-zA-Z0-9]+$!', $_GET['downloadStartSecret']) !== 1) { |
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return ''; |
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} |
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return $value; |
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} |
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/** |
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* this sets a cookie to be able to recognize the start of the download |
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* the content must not be longer than 32 characters and must only contain |
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* alphanumeric characters |
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*/ |
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if (isset($_GET['downloadStartSecret'])) { |
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$value = cleanCookieInput($_GET['downloadStartSecret']); |
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if ($value !== '') { |
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setcookie('ocDownloadStarted', $value, time() + 20, '/'); |
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} |
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} |
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$server_params = [ 'head' => \OC::$server->getRequest()->getMethod() === 'HEAD' ]; |
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/** |
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* Http range requests support |
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*/ |
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if (isset($_SERVER['HTTP_RANGE'])) { |
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$server_params['range'] = \OC::$server->getRequest()->getHeader('Range'); |
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} |
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OC_Files::get($dir, $files_list, $server_params); |
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