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<?php
// +-----------------------------------------------------------------------+
// | PhpWebGallery - a PHP based picture gallery |
// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
// +-----------------------------------------------------------------------+
// | branch : BSF (Best So Far)
// | file : $URL$
// | last update : $Date$
// | last modifier : $Author$
// | revision : $Rev$
// +-----------------------------------------------------------------------+
// | This program is free software; you can redistribute it and/or modify |
// | it under the terms of the GNU General Public License 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 |
// | General Public License for more details. |
// | |
// | You should have received a copy of the GNU General Public License |
// | along with this program; if not, write to the Free Software |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA. |
// +-----------------------------------------------------------------------+
function force_download ($filename)
{
//TODO : messages in "lang"
$filename = realpath($filename);
$file_extension = strtolower(substr(strrchr($filename,"."),1));
switch ($file_extension) {
case "jpe": case "jpeg":
case "jpg": $ctype="image/jpg"; break;
case "png": $ctype="image/png"; break;
case "gif": $ctype="image/gif"; break;
case "pdf": $ctype="application/pdf"; break;
case "zip": $ctype="application/zip"; break;
case "php":
// never allow download of php scripts to protect our conf files
die('Hacking attempt!'); break;
default: $ctype="application/octet-stream";
}
if (!file_exists($filename)) {
die("NO FILE HERE");
}
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private",false);
header("Content-Type: $ctype");
header("Content-Disposition: attachment; filename=\""
.basename($filename)."\";");
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".@filesize($filename));
// Looking at the safe_mode configuration for execution time
if (ini_get('safe_mode') == 0)
{
@set_time_limit(0);
}
@readfile("$filename") or die("File not found.");
}
//--------------------------------------------------------- download big picture
if ( isset( $_GET['dwn'] ) )
{
//TODO : verify the path begins with something in galleries_url and that user has access rights to the picture
// in order to avoid hacking atempts by forged url
if (preg_match('/\.\./',$_GET['dwn'])) {
die('Hacking attempt!');
}
force_download($_GET['dwn']);
}
?>
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