2010-03-10 15:03:40 +03:00
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<?php
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/**
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2015-06-25 12:43:55 +03:00
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* @author Andreas Fischer <bantu@owncloud.com>
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2015-03-26 13:44:34 +03:00
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* @author Arthur Schiwon <blizzz@owncloud.com>
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Björn Schießle <schiessle@owncloud.com>
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* @author dratini0 <dratini0@gmail.com>
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* @author Frank Karlitschek <frank@owncloud.org>
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* @author Jakob Sack <mail@jakobsack.de>
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* @author Joas Schilling <nickvergessen@owncloud.com>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Lukas Reschke <lukas@owncloud.com>
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* @author Michael Gapczynski <GapczynskiM@gmail.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author mvn23 <schopdiedwaas@gmail.com>
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* @author Nicolai Ehemann <en@enlightened.de>
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* @author Robin Appelman <icewind@owncloud.com>
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2015-06-25 12:43:55 +03:00
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* @author Robin McCorkell <rmccorkell@karoshi.org.uk>
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2015-03-26 13:44:34 +03:00
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* @author Scrutinizer Auto-Fixer <auto-fixer@scrutinizer-ci.com>
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* @author Thibaut GRIDEL <tgridel@free.fr>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Valerio Ponte <valerio.ponte@gmail.com>
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* @author Vincent Petry <pvince81@owncloud.com>
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2015-06-25 18:45:17 +03:00
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* @author Robin McCorkell <rmccorkell@karoshi.org.uk>
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2012-10-22 00:05:29 +04:00
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*
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2015-03-26 13:44:34 +03:00
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* @copyright Copyright (c) 2015, ownCloud, Inc.
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* @license AGPL-3.0
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2012-10-22 00:05:29 +04:00
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*
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2015-03-26 13:44:34 +03:00
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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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2012-10-22 00:05:29 +04:00
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*
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2015-03-26 13:44:34 +03:00
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* This program is distributed in the hope that it will be useful,
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2012-10-22 00:05:29 +04:00
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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2015-03-26 13:44:34 +03:00
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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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2012-10-22 00:05:29 +04:00
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*
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2015-03-26 13:44:34 +03:00
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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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2012-10-22 00:05:29 +04:00
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*
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*/
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2010-03-10 15:03:40 +03:00
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2014-02-20 19:36:37 +04:00
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// TODO: get rid of this using proper composer packages
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require_once 'mcnetic/phpzipstreamer/ZipStreamer.php';
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2010-03-10 15:03:40 +03:00
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2015-06-22 13:07:53 +03:00
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use OC\Lock\NoopLockingProvider;
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2015-06-17 18:40:46 +03:00
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use OCP\Lock\ILockingProvider;
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2010-03-10 15:03:40 +03:00
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/**
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2014-02-20 19:36:37 +04:00
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* Class for file server access
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2010-03-10 15:03:40 +03:00
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*
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*/
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2011-07-29 23:36:03 +04:00
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class OC_Files {
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2014-11-26 14:56:54 +03:00
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const FILE = 1;
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const ZIP_FILES = 2;
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const ZIP_DIR = 3;
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2012-11-16 01:08:08 +04:00
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2015-03-28 02:43:35 +03:00
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const UPLOAD_MIN_LIMIT_BYTES = 1048576; // 1 MiB
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2014-02-19 12:31:54 +04:00
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/**
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2014-02-20 19:36:37 +04:00
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* @param string $filename
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* @param string $name
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* @param bool $zip
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2014-02-19 12:31:54 +04:00
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*/
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2014-01-16 20:21:19 +04:00
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private static function sendHeaders($filename, $name, $zip = false) {
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OC_Response::setContentDispositionHeader($name, 'attachment');
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header('Content-Transfer-Encoding: binary');
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OC_Response::disableCaching();
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if ($zip) {
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header('Content-Type: application/zip');
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} else {
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$filesize = \OC\Files\Filesystem::filesize($filename);
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2014-09-08 17:57:39 +04:00
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header('Content-Type: '.\OC_Helper::getSecureMimeType(\OC\Files\Filesystem::getMimeType($filename)));
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2014-01-16 20:21:19 +04:00
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if ($filesize > -1) {
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2015-03-26 18:24:15 +03:00
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OC_Response::setContentLengthHeader($filesize);
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2014-01-16 20:21:19 +04:00
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}
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}
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2012-11-16 01:08:08 +04:00
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}
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2010-04-25 16:21:04 +04:00
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/**
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2013-01-29 08:51:35 +04:00
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* return the content of a file or return a zip file containing multiple files
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2012-10-22 00:05:29 +04:00
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*
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2012-10-24 17:32:29 +04:00
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* @param string $dir
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2014-02-06 19:30:58 +04:00
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* @param string $files ; separated list of files to download
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2012-10-22 00:05:29 +04:00
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* @param boolean $only_header ; boolean to only send header of the request
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*/
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public static function get($dir, $files, $only_header = false) {
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2015-06-17 18:40:46 +03:00
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$view = \OC\Files\Filesystem::getView();
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2012-10-19 02:11:20 +04:00
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$xsendfile = false;
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2015-06-22 13:07:53 +03:00
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if (\OC::$server->getLockingProvider() instanceof NoopLockingProvider) {
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if (isset($_SERVER['MOD_X_SENDFILE_ENABLED']) ||
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isset($_SERVER['MOD_X_SENDFILE2_ENABLED']) ||
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isset($_SERVER['MOD_X_ACCEL_REDIRECT_ENABLED'])
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) {
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$xsendfile = true;
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}
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2012-10-31 02:37:31 +04:00
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}
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2013-03-07 17:15:02 +04:00
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2014-01-17 17:26:17 +04:00
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if (is_array($files) && count($files) === 1) {
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2013-03-07 17:15:02 +04:00
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$files = $files[0];
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2010-05-02 01:09:36 +04:00
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}
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2011-06-19 17:08:28 +04:00
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2012-10-22 00:05:29 +04:00
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if (is_array($files)) {
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2014-11-26 14:56:54 +03:00
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$get_type = self::ZIP_FILES;
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2013-03-07 17:24:18 +04:00
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$basename = basename($dir);
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if ($basename) {
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$name = $basename . '.zip';
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} else {
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2014-01-21 15:41:10 +04:00
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$name = 'download.zip';
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2013-03-07 17:24:18 +04:00
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}
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2014-02-20 19:36:37 +04:00
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2014-01-16 20:21:19 +04:00
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$filename = $dir . '/' . $name;
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} else {
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$filename = $dir . '/' . $files;
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if (\OC\Files\Filesystem::is_dir($dir . '/' . $files)) {
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2014-11-26 14:56:54 +03:00
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$get_type = self::ZIP_DIR;
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2014-02-20 19:36:37 +04:00
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// downloading root ?
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if ($files === '') {
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$name = 'download.zip';
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} else {
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$name = $files . '.zip';
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}
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2014-02-13 23:20:00 +04:00
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} else {
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2014-11-26 14:56:54 +03:00
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$get_type = self::FILE;
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2014-01-16 20:21:19 +04:00
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$name = $files;
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2014-02-13 23:20:00 +04:00
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}
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2014-01-16 20:21:19 +04:00
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}
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2014-11-26 14:56:54 +03:00
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if ($get_type === self::FILE) {
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2012-10-22 00:05:29 +04:00
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$zip = false;
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2015-03-30 23:10:04 +03:00
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if ($xsendfile && \OC::$server->getEncryptionManager()->isEnabled()) {
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2013-11-14 11:46:15 +04:00
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$xsendfile = false;
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}
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2014-01-16 20:21:19 +04:00
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} else {
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2014-01-22 15:49:52 +04:00
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$zip = new ZipStreamer(false);
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2010-04-25 16:21:04 +04:00
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}
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2012-11-29 21:01:21 +04:00
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OC_Util::obEnd();
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2015-05-12 19:49:25 +03:00
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try {
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2015-06-17 18:40:46 +03:00
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if ($get_type === self::FILE) {
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$view->lockFile($filename, ILockingProvider::LOCK_SHARED);
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}
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2015-05-12 19:49:25 +03:00
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if ($zip or \OC\Files\Filesystem::isReadable($filename)) {
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self::sendHeaders($filename, $name, $zip);
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} elseif (!\OC\Files\Filesystem::file_exists($filename)) {
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header("HTTP/1.0 404 Not Found");
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$tmpl = new OC_Template('', '404', 'guest');
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$tmpl->printPage();
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2015-05-22 12:53:02 +03:00
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exit();
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2015-05-12 19:49:25 +03:00
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} else {
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header("HTTP/1.0 403 Forbidden");
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die('403 Forbidden');
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}
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if ($only_header) {
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return;
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}
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if ($zip) {
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$executionTime = intval(ini_get('max_execution_time'));
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set_time_limit(0);
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if ($get_type === self::ZIP_FILES) {
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foreach ($files as $file) {
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$file = $dir . '/' . $file;
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if (\OC\Files\Filesystem::is_file($file)) {
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$fh = \OC\Files\Filesystem::fopen($file, 'r');
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$zip->addFileFromStream($fh, basename($file));
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fclose($fh);
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} elseif (\OC\Files\Filesystem::is_dir($file)) {
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self::zipAddDir($file, $zip);
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}
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2014-01-16 20:21:19 +04:00
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}
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2015-05-12 19:49:25 +03:00
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} elseif ($get_type === self::ZIP_DIR) {
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$file = $dir . '/' . $files;
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self::zipAddDir($file, $zip);
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2012-05-01 22:32:13 +04:00
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}
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2015-05-12 19:49:25 +03:00
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$zip->finalize();
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set_time_limit($executionTime);
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} else {
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if ($xsendfile) {
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/** @var $storage \OC\Files\Storage\Storage */
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list($storage) = $view->resolvePath($filename);
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if ($storage->isLocal()) {
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self::addSendfileHeader($filename);
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} else {
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\OC\Files\Filesystem::readfile($filename);
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}
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2014-01-16 20:21:19 +04:00
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} else {
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\OC\Files\Filesystem::readfile($filename);
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}
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2010-05-08 00:50:59 +04:00
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}
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2015-06-17 18:40:46 +03:00
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if ($get_type === self::FILE) {
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$view->unlockFile($filename, ILockingProvider::LOCK_SHARED);
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}
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} catch (\OCP\Lock\LockedException $ex) {
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$l = \OC::$server->getL10N('core');
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$hint = method_exists($ex, 'getHint') ? $ex->getHint() : '';
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\OC_Template::printErrorPage($l->t('File is currently busy, please try again later'), $hint);
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2015-05-12 19:49:25 +03:00
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} catch (\Exception $ex) {
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$l = \OC::$server->getL10N('core');
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$hint = method_exists($ex, 'getHint') ? $ex->getHint() : '';
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\OC_Template::printErrorPage($l->t('Can\'t read file'), $hint);
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2010-04-25 16:21:04 +04:00
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}
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}
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2010-05-04 00:26:34 +04:00
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2014-02-06 19:30:58 +04:00
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/**
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* @param false|string $filename
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*/
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2012-10-19 02:11:20 +04:00
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private static function addSendfileHeader($filename) {
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if (isset($_SERVER['MOD_X_SENDFILE_ENABLED'])) {
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2015-02-11 23:14:58 +03:00
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$filename = \OC\Files\Filesystem::getLocalFile($filename);
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2012-10-19 02:11:20 +04:00
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header("X-Sendfile: " . $filename);
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2013-06-19 17:36:48 +04:00
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}
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if (isset($_SERVER['MOD_X_SENDFILE2_ENABLED'])) {
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2015-02-11 23:14:58 +03:00
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$filename = \OC\Files\Filesystem::getLocalFile($filename);
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2014-01-16 20:21:19 +04:00
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if (isset($_SERVER['HTTP_RANGE']) &&
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2013-06-20 18:46:36 +04:00
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preg_match("/^bytes=([0-9]+)-([0-9]*)$/", $_SERVER['HTTP_RANGE'], $range)) {
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$filelength = filesize($filename);
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2014-01-17 17:26:17 +04:00
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if ($range[2] === "") {
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2013-06-20 18:46:36 +04:00
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$range[2] = $filelength - 1;
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}
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header("Content-Range: bytes $range[1]-$range[2]/" . $filelength);
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header("HTTP/1.1 206 Partial content");
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header("X-Sendfile2: " . str_replace(",", "%2c", rawurlencode($filename)) . " $range[1]-$range[2]");
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} else {
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header("X-Sendfile: " . $filename);
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}
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2012-10-19 02:11:20 +04:00
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}
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2014-01-16 20:21:19 +04:00
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2012-10-31 02:37:31 +04:00
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if (isset($_SERVER['MOD_X_ACCEL_REDIRECT_ENABLED'])) {
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2015-02-12 00:10:06 +03:00
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if (isset($_SERVER['MOD_X_ACCEL_REDIRECT_PREFIX'])) {
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2015-03-23 19:51:12 +03:00
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$filename = $_SERVER['MOD_X_ACCEL_REDIRECT_PREFIX'] . \OC\Files\Filesystem::getLocalFile($filename);
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2015-02-12 00:10:06 +03:00
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} else {
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$filename = \OC::$WEBROOT . '/data' . \OC\Files\Filesystem::getRoot() . $filename;
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}
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2012-10-19 02:11:20 +04:00
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header("X-Accel-Redirect: " . $filename);
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2012-10-31 02:37:31 +04:00
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}
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2012-10-19 02:11:20 +04:00
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}
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2014-02-06 19:30:58 +04:00
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/**
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* @param string $dir
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2014-02-20 19:36:37 +04:00
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* @param ZipStreamer $zip
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* @param string $internalDir
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2014-02-06 19:30:58 +04:00
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*/
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2014-10-24 16:13:40 +04:00
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public static function zipAddDir($dir, ZipStreamer $zip, $internalDir='') {
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2011-09-18 22:57:05 +04:00
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$dirname=basename($dir);
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2014-02-20 19:36:37 +04:00
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$rootDir = $internalDir.$dirname;
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if (!empty($rootDir)) {
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$zip->addEmptyDir($rootDir);
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}
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2011-09-18 22:57:05 +04:00
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$internalDir.=$dirname.='/';
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2014-02-13 23:20:00 +04:00
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// prevent absolute dirs
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$internalDir = ltrim($internalDir, '/');
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2014-02-20 19:36:37 +04:00
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$files=\OC\Files\Filesystem::getDirectoryContent($dir);
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2012-09-07 17:22:01 +04:00
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foreach($files as $file) {
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2011-09-18 22:57:05 +04:00
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$filename=$file['name'];
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$file=$dir.'/'.$filename;
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2012-11-18 17:07:52 +04:00
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if(\OC\Files\Filesystem::is_file($file)) {
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2014-01-22 15:49:52 +04:00
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$fh = \OC\Files\Filesystem::fopen($file, 'r');
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$zip->addFileFromStream($fh, $internalDir.$filename);
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fclose($fh);
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2012-11-18 17:07:52 +04:00
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}elseif(\OC\Files\Filesystem::is_dir($file)) {
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2012-10-22 00:05:29 +04:00
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self::zipAddDir($file, $zip, $internalDir);
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2011-09-18 22:57:05 +04:00
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|
|
}
|
|
|
|
}
|
|
|
|
}
|
2012-10-22 00:05:29 +04:00
|
|
|
|
2011-05-29 19:43:13 +04:00
|
|
|
/**
|
|
|
|
* set the maximum upload size limit for apache hosts using .htaccess
|
2012-10-22 00:05:29 +04:00
|
|
|
*
|
2014-02-20 19:36:37 +04:00
|
|
|
* @param int $size file size in bytes
|
|
|
|
* @return bool false on failure, size on success
|
2011-05-29 19:43:13 +04:00
|
|
|
*/
|
2012-09-07 17:22:01 +04:00
|
|
|
static function setUploadLimit($size) {
|
2015-03-28 02:43:35 +03:00
|
|
|
//don't allow user to break his config
|
2012-10-22 00:05:29 +04:00
|
|
|
if ($size > PHP_INT_MAX) {
|
2012-04-13 13:25:38 +04:00
|
|
|
//max size is always 1 byte lower than computerFileSize returns
|
2012-10-22 00:05:29 +04:00
|
|
|
if ($size > PHP_INT_MAX + 1)
|
2012-04-13 13:25:38 +04:00
|
|
|
return false;
|
2012-10-22 00:05:29 +04:00
|
|
|
$size -= 1;
|
2012-04-13 13:25:38 +04:00
|
|
|
}
|
2015-03-28 02:43:35 +03:00
|
|
|
if ($size < self::UPLOAD_MIN_LIMIT_BYTES) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
$size = OC_Helper::phpFileSize($size);
|
2012-04-13 12:43:19 +04:00
|
|
|
|
2012-04-13 13:25:38 +04:00
|
|
|
//don't allow user to break his config -- broken or malicious size input
|
2014-01-17 17:26:17 +04:00
|
|
|
if (intval($size) === 0) {
|
2012-04-13 12:43:19 +04:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
$phpValueKeys = array(
|
|
|
|
'upload_max_filesize',
|
|
|
|
'post_max_size'
|
|
|
|
);
|
|
|
|
|
2015-06-25 18:45:17 +03:00
|
|
|
$updateFiles = [
|
|
|
|
OC::$SERVERROOT . '/.htaccess' => [
|
|
|
|
'pattern' => '/php_value %1$s (\S)*/',
|
|
|
|
'setting' => 'php_value %1$s %2$s'
|
|
|
|
],
|
|
|
|
OC::$SERVERROOT . '/.user.ini' => [
|
|
|
|
'pattern' => '/%1$s=(\S)*/',
|
|
|
|
'setting' => '%1$s=%2$s'
|
|
|
|
]
|
|
|
|
];
|
|
|
|
|
|
|
|
$success = true;
|
|
|
|
|
|
|
|
foreach ($updateFiles as $filename => $patternMap) {
|
|
|
|
// suppress warnings from fopen()
|
|
|
|
$handle = @fopen($filename, 'r+');
|
|
|
|
if (!$handle) {
|
|
|
|
\OCP\Util::writeLog('files',
|
|
|
|
'Can\'t write upload limit to ' . $filename . '. Please check the file permissions',
|
|
|
|
\OCP\Util::WARN);
|
|
|
|
$success = false;
|
|
|
|
continue; // try to update as many files as possible
|
|
|
|
}
|
|
|
|
|
|
|
|
$content = '';
|
|
|
|
while (!feof($handle)) {
|
|
|
|
$content .= fread($handle, 1000);
|
2012-04-13 12:43:19 +04:00
|
|
|
}
|
2015-06-25 18:45:17 +03:00
|
|
|
|
|
|
|
foreach ($phpValueKeys as $key) {
|
|
|
|
$pattern = vsprintf($patternMap['pattern'], [$key]);
|
|
|
|
$setting = vsprintf($patternMap['setting'], [$key, $size]);
|
|
|
|
$hasReplaced = 0;
|
|
|
|
$newContent = preg_replace($pattern, $setting, $content, 1, $hasReplaced);
|
|
|
|
if ($newContent !== null) {
|
|
|
|
$content = $newContent;
|
|
|
|
}
|
|
|
|
if ($hasReplaced === 0) {
|
|
|
|
$content .= "\n" . $setting;
|
|
|
|
}
|
2012-04-13 12:43:19 +04:00
|
|
|
}
|
2015-06-25 18:45:17 +03:00
|
|
|
|
|
|
|
// write file back
|
|
|
|
ftruncate($handle, 0);
|
|
|
|
rewind($handle);
|
|
|
|
fwrite($handle, $content);
|
|
|
|
|
|
|
|
fclose($handle);
|
2012-04-13 12:43:19 +04:00
|
|
|
}
|
|
|
|
|
2015-06-25 18:45:17 +03:00
|
|
|
if ($success) {
|
2012-08-29 10:38:33 +04:00
|
|
|
return OC_Helper::computerFileSize($size);
|
2012-10-22 00:05:29 +04:00
|
|
|
}
|
2012-04-13 12:43:19 +04:00
|
|
|
return false;
|
2011-05-29 19:43:13 +04:00
|
|
|
}
|
2010-04-25 16:21:04 +04:00
|
|
|
}
|