<?php
/**
* XOOPS restricted file access
*
* You may not change or alter any portion of this comment or credits
* of supporting developers from this source code or any supporting source code
* which is considered copyrighted (c) material of the original comment or credit authors.
* 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.
*
* @copyright (c) 2000-2016 XOOPS Project (www.xoops.org)
* @license GNU GPL 2 (http://www.gnu.org/licenses/gpl-2.0.html)
* @package core
* @since 2.4.0
* @author Taiwen Jiang <phppp@users.sourceforge.net>
*/
defined('DS') or define('DS', DIRECTORY_SEPARATOR);
defined('NWLINE') or define('NWLINE', "\n");
$xoopsOption['nocommon'] = true;
require_once __DIR__ . DS . 'mainfile.php';
error_reporting(0);
include_once XOOPS_ROOT_PATH . DS . 'include' . DS . 'defines.php';
include_once XOOPS_ROOT_PATH . DS . 'include' . DS . 'version.php';
require_once XOOPS_ROOT_PATH . DS . 'class' . DS . 'xoopsload.php';
XoopsLoad::load('xoopskernel');
$xoops = new xos_kernel_Xoops2();
$xoops->pathTranslation();
// Fetch path from query string if path is not set, i.e. through a direct request
if (!isset($path) && !empty($_SERVER['QUERY_STRING'])) {
$path = $_SERVER['QUERY_STRING'];
$path = (substr($path, 0, 1) === '/') ? substr($path, 1) : $path;
$path_type = substr($path, 0, strpos($path, '/'));
if (!isset($xoops->paths[$path_type])) {
$path = 'XOOPS/' . $path;
$path_type = 'XOOPS';
}
}
//We are not allowing output of xoops_data
if ($path_type === 'var') {
header('HTTP/1.0 404 Not Found');
exit();
}
$file = realpath($xoops->path($path));
$dir = realpath($xoops->paths[$path_type][0]);
//We are not allowing directory travessal either
if (false === strpos($file, $dir)) {
header('HTTP/1.0 404 Not Found');
exit();
}
//We can't output empty files and php files do not output
if (empty($file) || strpos($file, '.php') !== false) {
header('HTTP/1.0 404 Not Found');
exit();
}
$file = $xoops->path($path);
// Is there really a file to output?
if (!file_exists($file)) {
header('HTTP/1.0 404 Not Found');
exit();
}
$ext = substr($file, strrpos($file, '.') + 1);
$types = include $xoops->path('include/mimetypes.inc.php');
//$content_type = isset($types[$ext]) ? $types[$ext] : 'text/plain';
//Do not output garbage
if (!isset($types[$ext])) {
header('HTTP/1.0 404 Not Found');
exit();
}
//Output now
// seconds, minutes, hours, days
$expires = 60 * 60 * 24 * 15;
header('Pragma: public');
header('Cache-Control: maxage=' . $expires);
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + $expires) . ' GMT');
header('Content-type: ' . $types[$ext]);
$handle = fopen($file, 'rb');
while (!feof($handle)) {
$buffer = fread($handle, 4096);
echo $buffer;
}
fclose($handle);
exit();
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