315 lines
9.1 KiB
PHP
315 lines
9.1 KiB
PHP
<?php
|
|
/**
|
|
* @author Arthur Schiwon <blizzz@owncloud.com>
|
|
* @author Bart Visscher <bartv@thisnet.nl>
|
|
* @author Björn Schießle <schiessle@owncloud.com>
|
|
* @author Clark Tomlinson <fallen013@gmail.com>
|
|
* @author Frank Karlitschek <frank@owncloud.org>
|
|
* @author Jakob Sack <mail@jakobsack.de>
|
|
* @author Joas Schilling <nickvergessen@owncloud.com>
|
|
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
|
|
* @author Michael Gapczynski <GapczynskiM@gmail.com>
|
|
* @author Nicolai Ehemann <en@enlightened.de>
|
|
* @author Robin Appelman <icewind@owncloud.com>
|
|
* @author Robin McCorkell <robin@mccorkell.me.uk>
|
|
* @author Scrutinizer Auto-Fixer <auto-fixer@scrutinizer-ci.com>
|
|
* @author Thibaut GRIDEL <tgridel@free.fr>
|
|
* @author Thomas Müller <thomas.mueller@tmit.eu>
|
|
* @author Victor Dubiniuk <dubiniuk@owncloud.com>
|
|
* @author Vincent Petry <pvince81@owncloud.com>
|
|
*
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
* @license AGPL-3.0
|
|
*
|
|
* This code is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License, version 3,
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License, version 3,
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>
|
|
*
|
|
*/
|
|
|
|
use OC\Files\View;
|
|
use OC\Streamer;
|
|
use OCP\Lock\ILockingProvider;
|
|
|
|
/**
|
|
* Class for file server access
|
|
*
|
|
*/
|
|
class OC_Files {
|
|
const FILE = 1;
|
|
const ZIP_FILES = 2;
|
|
const ZIP_DIR = 3;
|
|
|
|
const UPLOAD_MIN_LIMIT_BYTES = 1048576; // 1 MiB
|
|
|
|
/**
|
|
* @param string $filename
|
|
* @param string $name
|
|
*/
|
|
private static function sendHeaders($filename, $name) {
|
|
OC_Response::setContentDispositionHeader($name, 'attachment');
|
|
header('Content-Transfer-Encoding: binary');
|
|
OC_Response::disableCaching();
|
|
$fileSize = \OC\Files\Filesystem::filesize($filename);
|
|
$type = \OC::$server->getMimeTypeDetector()->getSecureMimeType(\OC\Files\Filesystem::getMimeType($filename));
|
|
header('Content-Type: '.$type);
|
|
if ($fileSize > -1) {
|
|
OC_Response::setContentLengthHeader($fileSize);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* return the content of a file or return a zip file containing multiple files
|
|
*
|
|
* @param string $dir
|
|
* @param string $files ; separated list of files to download
|
|
* @param boolean $onlyHeader ; boolean to only send header of the request
|
|
*/
|
|
public static function get($dir, $files, $onlyHeader = false) {
|
|
|
|
$view = \OC\Files\Filesystem::getView();
|
|
$getType = self::FILE;
|
|
$filename = $dir;
|
|
try {
|
|
|
|
if (is_array($files) && count($files) === 1) {
|
|
$files = $files[0];
|
|
}
|
|
|
|
if (!is_array($files)) {
|
|
$filename = $dir . '/' . $files;
|
|
if (!$view->is_dir($filename)) {
|
|
self::getSingleFile($view, $dir, $files, $onlyHeader);
|
|
return;
|
|
}
|
|
}
|
|
|
|
$name = 'download';
|
|
if (is_array($files)) {
|
|
$getType = self::ZIP_FILES;
|
|
$basename = basename($dir);
|
|
if ($basename) {
|
|
$name = $basename;
|
|
}
|
|
|
|
$filename = $dir . '/' . $name;
|
|
} else {
|
|
$filename = $dir . '/' . $files;
|
|
$getType = self::ZIP_DIR;
|
|
// downloading root ?
|
|
if ($files !== '') {
|
|
$name = $files;
|
|
}
|
|
}
|
|
|
|
$streamer = new Streamer();
|
|
OC_Util::obEnd();
|
|
|
|
self::lockFiles($view, $dir, $files);
|
|
|
|
$streamer->sendHeaders($name);
|
|
$executionTime = intval(OC::$server->getIniWrapper()->getNumeric('max_execution_time'));
|
|
set_time_limit(0);
|
|
if ($getType === self::ZIP_FILES) {
|
|
foreach ($files as $file) {
|
|
$file = $dir . '/' . $file;
|
|
if (\OC\Files\Filesystem::is_file($file)) {
|
|
$fileSize = \OC\Files\Filesystem::filesize($file);
|
|
$fh = \OC\Files\Filesystem::fopen($file, 'r');
|
|
$streamer->addFileFromStream($fh, basename($file), $fileSize);
|
|
fclose($fh);
|
|
} elseif (\OC\Files\Filesystem::is_dir($file)) {
|
|
$streamer->addDirRecursive($file);
|
|
}
|
|
}
|
|
} elseif ($getType === self::ZIP_DIR) {
|
|
$file = $dir . '/' . $files;
|
|
$streamer->addDirRecursive($file);
|
|
}
|
|
$streamer->finalize();
|
|
set_time_limit($executionTime);
|
|
self::unlockAllTheFiles($dir, $files, $getType, $view, $filename);
|
|
} catch (\OCP\Lock\LockedException $ex) {
|
|
self::unlockAllTheFiles($dir, $files, $getType, $view, $filename);
|
|
OC::$server->getLogger()->logException($ex);
|
|
$l = \OC::$server->getL10N('core');
|
|
$hint = method_exists($ex, 'getHint') ? $ex->getHint() : '';
|
|
\OC_Template::printErrorPage($l->t('File is currently busy, please try again later'), $hint);
|
|
} catch (\OCP\Files\ForbiddenException $ex) {
|
|
self::unlockAllTheFiles($dir, $files, $getType, $view, $filename);
|
|
OC::$server->getLogger()->logException($ex);
|
|
$l = \OC::$server->getL10N('core');
|
|
\OC_Template::printErrorPage($l->t('Can\'t read file'), $ex->getMessage());
|
|
} catch (\Exception $ex) {
|
|
self::unlockAllTheFiles($dir, $files, $getType, $view, $filename);
|
|
OC::$server->getLogger()->logException($ex);
|
|
$l = \OC::$server->getL10N('core');
|
|
$hint = method_exists($ex, 'getHint') ? $ex->getHint() : '';
|
|
\OC_Template::printErrorPage($l->t('Can\'t read file'), $hint);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param View $view
|
|
* @param string $name
|
|
*/
|
|
private static function getSingleFile($view, $dir, $name, $onlyHeader) {
|
|
$filename = $dir . '/' . $name;
|
|
OC_Util::obEnd();
|
|
$view->lockFile($filename, ILockingProvider::LOCK_SHARED);
|
|
|
|
if (\OC\Files\Filesystem::isReadable($filename)) {
|
|
self::sendHeaders($filename, $name);
|
|
} elseif (!\OC\Files\Filesystem::file_exists($filename)) {
|
|
header("HTTP/1.0 404 Not Found");
|
|
$tmpl = new OC_Template('', '404', 'guest');
|
|
$tmpl->printPage();
|
|
exit();
|
|
} else {
|
|
header("HTTP/1.0 403 Forbidden");
|
|
die('403 Forbidden');
|
|
}
|
|
if ($onlyHeader) {
|
|
return;
|
|
}
|
|
$view->readfile($filename);
|
|
}
|
|
|
|
/**
|
|
* @param View $view
|
|
* @param $dir
|
|
* @param string[]|string $files
|
|
*/
|
|
public static function lockFiles($view, $dir, $files) {
|
|
if (!is_array($files)) {
|
|
$file = $dir . '/' . $files;
|
|
$files = [$file];
|
|
}
|
|
foreach ($files as $file) {
|
|
$file = $dir . '/' . $file;
|
|
$view->lockFile($file, ILockingProvider::LOCK_SHARED);
|
|
if ($view->is_dir($file)) {
|
|
$contents = $view->getDirectoryContent($file);
|
|
$contents = array_map(function($fileInfo) use ($file) {
|
|
/** @var \OCP\Files\FileInfo $fileInfo */
|
|
return $file . '/' . $fileInfo->getName();
|
|
}, $contents);
|
|
self::lockFiles($view, $dir, $contents);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* set the maximum upload size limit for apache hosts using .htaccess
|
|
*
|
|
* @param int $size file size in bytes
|
|
* @param array $files override '.htaccess' and '.user.ini' locations
|
|
* @return bool false on failure, size on success
|
|
*/
|
|
public static function setUploadLimit($size, $files = []) {
|
|
//don't allow user to break his config
|
|
$size = intval($size);
|
|
if ($size < self::UPLOAD_MIN_LIMIT_BYTES) {
|
|
return false;
|
|
}
|
|
$size = OC_Helper::phpFileSize($size);
|
|
|
|
$phpValueKeys = array(
|
|
'upload_max_filesize',
|
|
'post_max_size'
|
|
);
|
|
|
|
// default locations if not overridden by $files
|
|
$files = array_merge([
|
|
'.htaccess' => OC::$SERVERROOT . '/.htaccess',
|
|
'.user.ini' => OC::$SERVERROOT . '/.user.ini'
|
|
], $files);
|
|
|
|
$updateFiles = [
|
|
$files['.htaccess'] => [
|
|
'pattern' => '/php_value %1$s (\S)*/',
|
|
'setting' => 'php_value %1$s %2$s'
|
|
],
|
|
$files['.user.ini'] => [
|
|
'pattern' => '/%1$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);
|
|
}
|
|
|
|
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" . $setting;
|
|
}
|
|
}
|
|
|
|
// write file back
|
|
ftruncate($handle, 0);
|
|
rewind($handle);
|
|
fwrite($handle, $content);
|
|
|
|
fclose($handle);
|
|
}
|
|
|
|
if ($success) {
|
|
return OC_Helper::computerFileSize($size);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @param $dir
|
|
* @param $files
|
|
* @param $getType
|
|
* @param View $view
|
|
* @param $filename
|
|
*/
|
|
private static function unlockAllTheFiles($dir, $files, $getType, $view, $filename) {
|
|
if ($getType === self::FILE) {
|
|
$view->unlockFile($filename, ILockingProvider::LOCK_SHARED);
|
|
}
|
|
if ($getType === self::ZIP_FILES) {
|
|
foreach ($files as $file) {
|
|
$file = $dir . '/' . $file;
|
|
$view->unlockFile($file, ILockingProvider::LOCK_SHARED);
|
|
}
|
|
}
|
|
if ($getType === self::ZIP_DIR) {
|
|
$file = $dir . '/' . $files;
|
|
$view->unlockFile($file, ILockingProvider::LOCK_SHARED);
|
|
}
|
|
}
|
|
|
|
}
|