2010-03-10 15:03:40 +03:00
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<?php
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/**
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2012-10-22 00:05:29 +04:00
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* ownCloud
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*
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* @author Frank Karlitschek
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* @copyright 2012 Frank Karlitschek frank@owncloud.org
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library 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
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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2010-03-10 15:03:40 +03:00
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/**
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* Class for fileserver access
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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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2012-10-22 00:05:29 +04:00
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static $tmpFiles = array();
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2010-04-25 16:21:04 +04:00
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2013-11-18 20:29:30 +04:00
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static public function getFileInfo($path, $includeMountPoints = true){
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return \OC\Files\Filesystem::getFileInfo($path, $includeMountPoints);
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2012-11-16 01:08:08 +04:00
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}
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2014-02-19 12:31:54 +04:00
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/**
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* @param string $path
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*/
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2012-12-15 05:22:09 +04:00
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static public function getDirectoryContent($path){
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2012-11-16 01:08:08 +04:00
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return \OC\Files\Filesystem::getDirectoryContent($path);
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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, $only_header = false) {
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2012-10-19 02:11:20 +04:00
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$xsendfile = false;
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2013-06-20 01:44:45 +04:00
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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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2012-10-31 02:37:31 +04:00
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isset($_SERVER['MOD_X_ACCEL_REDIRECT_ENABLED'])) {
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2012-10-19 02:11:20 +04:00
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$xsendfile = true;
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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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2013-03-12 14:53:41 +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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self::validateZipDownload($dir, $files);
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2012-03-16 19:25:15 +04:00
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$executionTime = intval(ini_get('max_execution_time'));
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set_time_limit(0);
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2010-04-25 16:21:04 +04:00
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$zip = new ZipArchive();
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2013-03-21 01:37:02 +04:00
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$filename = OC_Helper::tmpFile('.zip');
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2012-10-31 02:37:31 +04:00
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if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE)!==true) {
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2013-07-23 01:04:14 +04:00
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$l = OC_L10N::get('lib');
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throw new Exception($l->t('cannot open "%s"', array($filename)));
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2010-04-25 16:21:04 +04:00
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}
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2012-10-22 00:05:29 +04:00
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foreach ($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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2012-10-24 17:32:29 +04:00
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$tmpFile = \OC\Files\Filesystem::toTmpFile($file);
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2012-10-22 00:05:29 +04:00
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self::$tmpFiles[] = $tmpFile;
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$zip->addFile($tmpFile, basename($file));
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} elseif (\OC\Files\Filesystem::is_dir($file)) {
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self::zipAddDir($file, $zip);
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2010-04-25 16:21:04 +04:00
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}
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}
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$zip->close();
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2013-03-21 01:37:02 +04:00
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if ($xsendfile) {
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$filename = OC_Helper::moveToNoClean($filename);
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}
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2013-03-07 17:24:18 +04:00
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$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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2012-03-16 19:25:15 +04:00
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set_time_limit($executionTime);
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2012-10-22 00:05:29 +04:00
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} elseif (\OC\Files\Filesystem::is_dir($dir . '/' . $files)) {
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self::validateZipDownload($dir, $files);
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2012-03-16 19:25:15 +04:00
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$executionTime = intval(ini_get('max_execution_time'));
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set_time_limit(0);
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2010-04-25 16:21:04 +04:00
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$zip = new ZipArchive();
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2013-03-21 01:37:02 +04:00
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$filename = OC_Helper::tmpFile('.zip');
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2012-10-31 02:37:31 +04:00
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if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE)!==true) {
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2013-07-23 01:04:14 +04:00
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$l = OC_L10N::get('lib');
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throw new Exception($l->t('cannot open "%s"', array($filename)));
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2010-04-25 16:21:04 +04:00
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}
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2012-10-22 00:05:29 +04:00
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$file = $dir . '/' . $files;
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self::zipAddDir($file, $zip);
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2010-04-25 16:21:04 +04:00
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$zip->close();
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2013-03-21 01:37:02 +04:00
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if ($xsendfile) {
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$filename = OC_Helper::moveToNoClean($filename);
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}
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2014-02-13 23:20:00 +04:00
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// downloading root ?
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if ($files === '') {
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$name = 'download.zip';
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} else {
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$name = $files . '.zip';
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}
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2012-03-16 19:25:15 +04:00
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set_time_limit($executionTime);
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2012-10-22 00:05:29 +04:00
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} else {
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$zip = false;
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$filename = $dir . '/' . $files;
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2013-01-29 08:51:35 +04:00
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$name = $files;
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2013-11-14 11:46:15 +04:00
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if ($xsendfile && OC_App::isEnabled('files_encryption')) {
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$xsendfile = false;
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}
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2010-04-25 16:21:04 +04:00
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}
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2012-11-29 21:01:21 +04:00
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OC_Util::obEnd();
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2012-12-28 00:49:48 +04:00
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if ($zip or \OC\Files\Filesystem::isReadable($filename)) {
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2013-12-10 15:05:39 +04:00
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OC_Response::setContentDispositionHeader($name, 'attachment');
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2010-06-25 15:24:27 +04:00
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header('Content-Transfer-Encoding: binary');
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2012-02-14 02:48:05 +04:00
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OC_Response::disableCaching();
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2012-10-22 00:05:29 +04:00
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if ($zip) {
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2012-05-15 13:57:24 +04:00
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ini_set('zlib.output_compression', 'off');
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2010-09-26 21:09:16 +04:00
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header('Content-Type: application/zip');
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2010-07-07 14:30:30 +04:00
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header('Content-Length: ' . filesize($filename));
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2012-10-19 02:11:20 +04:00
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self::addSendfileHeader($filename);
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2010-07-07 14:30:30 +04:00
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}else{
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2013-05-17 22:14:12 +04:00
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$filesize = \OC\Files\Filesystem::filesize($filename);
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2012-11-18 17:07:52 +04:00
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header('Content-Type: '.\OC\Files\Filesystem::getMimeType($filename));
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2013-05-17 22:14:12 +04:00
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if ($filesize > -1) {
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header("Content-Length: ".$filesize);
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}
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2013-11-20 17:33:59 +04:00
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if ($xsendfile) {
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list($storage) = \OC\Files\Filesystem::resolvePath(\OC\Files\Filesystem::getView()->getAbsolutePath($filename));
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2014-02-04 22:58:49 +04:00
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if ($storage->isLocal()) {
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2013-11-20 17:33:59 +04:00
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self::addSendfileHeader(\OC\Files\Filesystem::getLocalFile($filename));
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}
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2012-10-31 02:37:31 +04:00
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}
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2010-07-07 14:30:30 +04:00
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}
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2012-10-22 00:05:29 +04:00
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} elseif ($zip or !\OC\Files\Filesystem::file_exists($filename)) {
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2010-06-25 15:24:27 +04:00
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header("HTTP/1.0 404 Not Found");
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2012-10-22 00:05:29 +04:00
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$tmpl = new OC_Template('', '404', 'guest');
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2013-01-29 08:51:35 +04:00
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$tmpl->assign('file', $name);
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2011-04-18 15:16:32 +04:00
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$tmpl->printPage();
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2012-10-22 00:05:29 +04:00
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} else {
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2010-06-25 15:24:27 +04:00
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header("HTTP/1.0 403 Forbidden");
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die('403 Forbidden');
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2010-05-08 00:50:59 +04:00
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}
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2012-09-07 17:22:01 +04:00
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if($only_header) {
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2012-05-25 02:48:10 +04:00
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return ;
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}
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2012-10-22 00:05:29 +04:00
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if ($zip) {
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$handle = fopen($filename, 'r');
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2012-05-01 22:32:13 +04:00
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if ($handle) {
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2012-10-22 00:05:29 +04:00
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$chunkSize = 8 * 1024; // 1 MB chunks
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2012-05-01 22:32:13 +04:00
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while (!feof($handle)) {
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echo fread($handle, $chunkSize);
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flush();
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}
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}
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2012-10-31 02:37:31 +04:00
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if (!$xsendfile) {
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2012-10-19 02:11:20 +04:00
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unlink($filename);
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2012-10-31 02:37:31 +04:00
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}
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2010-06-25 15:24:27 +04:00
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}else{
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2012-10-10 15:18:36 +04:00
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\OC\Files\Filesystem::readfile($filename);
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2010-06-25 15:24:27 +04:00
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}
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2012-10-22 00:05:29 +04:00
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foreach (self::$tmpFiles as $tmpFile) {
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if (file_exists($tmpFile) and is_file($tmpFile)) {
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2010-05-08 00:50:59 +04:00
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unlink($tmpFile);
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}
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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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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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2013-06-20 18:46:36 +04:00
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if (isset($_SERVER['HTTP_RANGE']) &&
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preg_match("/^bytes=([0-9]+)-([0-9]*)$/", $_SERVER['HTTP_RANGE'], $range)) {
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$filelength = filesize($filename);
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if ($range[2] == "") {
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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: " . $filename);
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}
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2012-10-19 02:11:20 +04:00
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}
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2013-06-20 13:23:25 +04:00
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2012-10-31 02:37:31 +04:00
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if (isset($_SERVER['MOD_X_ACCEL_REDIRECT_ENABLED'])) {
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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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* @param ZipArchive $zip
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*/
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2012-11-02 22:53:02 +04:00
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public static function zipAddDir($dir, $zip, $internalDir='') {
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2011-09-18 22:57:05 +04:00
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$dirname=basename($dir);
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$zip->addEmptyDir($internalDir.$dirname);
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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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2012-10-19 02:11:20 +04:00
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$files=OC_Files::getDirectoryContent($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($file)) {
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$tmpFile=\OC\Files\Filesystem::toTmpFile($file);
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2011-09-18 22:57:05 +04:00
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OC_Files::$tmpFiles[]=$tmpFile;
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2012-10-23 02:28:12 +04:00
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$zip->addFile($tmpFile, $internalDir.$filename);
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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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}
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}
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}
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2012-10-22 00:05:29 +04:00
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2012-03-16 19:25:15 +04:00
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/**
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2012-10-22 00:05:29 +04:00
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* checks if the selected files are within the size constraint. If not, outputs an error page.
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*
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2014-02-06 19:30:58 +04:00
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* @param string $dir
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2012-10-22 00:05:29 +04:00
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* @param files $files
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*/
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2012-03-19 14:56:02 +04:00
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static function validateZipDownload($dir, $files) {
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2012-10-22 00:05:29 +04:00
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if (!OC_Config::getValue('allowZipDownload', true)) {
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2012-08-31 01:51:44 +04:00
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$l = OC_L10N::get('lib');
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2012-03-19 14:56:02 +04:00
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header("HTTP/1.0 409 Conflict");
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2013-07-22 00:30:32 +04:00
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OC_Template::printErrorPage(
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$l->t('ZIP download is turned off.'),
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$l->t('Files need to be downloaded one by one.')
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. '<br/><a href="javascript:history.back()">' . $l->t('Back to Files') . '</a>'
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2012-03-19 14:56:02 +04:00
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);
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exit;
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}
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2012-03-21 16:05:15 +04:00
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$zipLimit = OC_Config::getValue('maxZipInputSize', OC_Helper::computerFileSize('800 MB'));
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2012-10-22 00:05:29 +04:00
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if ($zipLimit > 0) {
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2012-03-16 19:25:15 +04:00
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$totalsize = 0;
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2013-03-08 22:21:06 +04:00
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if(!is_array($files)) {
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$files = array($files);
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}
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foreach ($files as $file) {
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$path = $dir . '/' . $file;
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if(\OC\Files\Filesystem::is_dir($path)) {
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foreach (\OC\Files\Filesystem::getDirectoryContent($path) as $i) {
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$totalsize += $i['size'];
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}
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} else {
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$totalsize += \OC\Files\Filesystem::filesize($path);
|
2012-03-16 19:25:15 +04:00
|
|
|
}
|
|
|
|
}
|
2012-10-22 00:05:29 +04:00
|
|
|
if ($totalsize > $zipLimit) {
|
2012-08-31 01:51:44 +04:00
|
|
|
$l = OC_L10N::get('lib');
|
2012-03-16 19:25:15 +04:00
|
|
|
header("HTTP/1.0 409 Conflict");
|
2013-07-22 00:30:32 +04:00
|
|
|
OC_Template::printErrorPage(
|
|
|
|
$l->t('Selected files too large to generate zip file.'),
|
2013-11-21 12:59:21 +04:00
|
|
|
$l->t('Please download the files separately in smaller chunks or kindly ask your administrator.')
|
2013-07-23 01:04:14 +04:00
|
|
|
.'<br/><a href="javascript:history.back()">'
|
2013-07-22 00:30:32 +04:00
|
|
|
. $l->t('Back to Files') . '</a>'
|
2012-03-16 19:25:15 +04:00
|
|
|
);
|
|
|
|
exit;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2011-05-29 19:43:13 +04:00
|
|
|
/**
|
|
|
|
* set the maximum upload size limit for apache hosts using .htaccess
|
2012-10-22 00:05:29 +04:00
|
|
|
*
|
2011-05-29 19:43:13 +04:00
|
|
|
* @param int size filesisze in bytes
|
2012-04-13 13:25:38 +04:00
|
|
|
* @return false on failure, size on success
|
2011-05-29 19:43:13 +04:00
|
|
|
*/
|
2012-09-07 17:22:01 +04:00
|
|
|
static function setUploadLimit($size) {
|
2012-04-13 13:25:38 +04:00
|
|
|
//don't allow user to break his config -- upper boundary
|
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
|
|
|
} else {
|
2012-10-22 00:05:29 +04:00
|
|
|
$size = OC_Helper::humanFileSize($size);
|
|
|
|
$size = substr($size, 0, -1); //strip the B
|
|
|
|
$size = str_replace(' ', '', $size); //remove the space between the size and the postfix
|
2012-04-13 13:25:38 +04:00
|
|
|
}
|
2012-04-13 12:43:19 +04:00
|
|
|
|
2012-04-13 13:25:38 +04:00
|
|
|
//don't allow user to break his config -- broken or malicious size input
|
2012-10-22 00:05:29 +04:00
|
|
|
if (intval($size) == 0) {
|
2012-04-13 12:43:19 +04:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2012-10-22 00:05:29 +04:00
|
|
|
$htaccess = @file_get_contents(OC::$SERVERROOT . '/.htaccess'); //supress errors in case we don't have permissions for
|
|
|
|
if (!$htaccess) {
|
2012-04-13 12:43:19 +04:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
$phpValueKeys = array(
|
|
|
|
'upload_max_filesize',
|
|
|
|
'post_max_size'
|
|
|
|
);
|
|
|
|
|
2012-10-22 00:05:29 +04:00
|
|
|
foreach ($phpValueKeys as $key) {
|
|
|
|
$pattern = '/php_value ' . $key . ' (\S)*/';
|
|
|
|
$setting = 'php_value ' . $key . ' ' . $size;
|
|
|
|
$hasReplaced = 0;
|
|
|
|
$content = preg_replace($pattern, $setting, $htaccess, 1, $hasReplaced);
|
|
|
|
if ($content !== null) {
|
2012-04-13 12:43:19 +04:00
|
|
|
$htaccess = $content;
|
|
|
|
}
|
2012-10-22 00:05:29 +04:00
|
|
|
if ($hasReplaced == 0) {
|
2012-04-13 12:43:19 +04:00
|
|
|
$htaccess .= "\n" . $setting;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:50:21 +04:00
|
|
|
//check for write permissions
|
2012-10-22 00:05:29 +04:00
|
|
|
if (is_writable(OC::$SERVERROOT . '/.htaccess')) {
|
|
|
|
file_put_contents(OC::$SERVERROOT . '/.htaccess', $htaccess);
|
2012-08-29 10:38:33 +04:00
|
|
|
return OC_Helper::computerFileSize($size);
|
2012-10-22 00:05:29 +04:00
|
|
|
} else {
|
2013-02-11 20:44:02 +04:00
|
|
|
OC_Log::write('files',
|
|
|
|
'Can\'t write upload limit to ' . OC::$SERVERROOT . '/.htaccess. Please check the file permissions',
|
|
|
|
OC_Log::WARN);
|
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
|
|
|
}
|