/mnt/web601/b3/14/57451114/htdocs/httpdocs/inc/xtc_get_download.inc.php
<?php
/* -----------------------------------------------------------------------------------------
$Id: xtc_get_download.inc.php 899 2005-04-29 02:40:57Z hhgag $
XT-Commerce - community made shopping
http://www.xt-commerce.com
Copyright (c) 2003 XT-Commerce
-----------------------------------------------------------------------------------------
by Mario Zanier <webmaster@zanier.at>
based on:
(c) 2003 nextcommerce (xtc_get_download.inc.php,v 1.4 2003/08/25); www.nextcommerce.org
Released under the GNU General Public License
---------------------------------------------------------------------------------------*/
// safe download function, file get renamed bevor sending to browser!!
function xtc_get_download($content_id) {
$content_query=xtc_db_query("SELECT
content_file,
content_read
FROM ".TABLE_PRODUCTS_CONTENT."
WHERE content_id='".(int)$content_id."'");
$content_data=xtc_db_fetch_array($content_query);
// update file counter
xtc_db_query("UPDATE
".TABLE_PRODUCTS_CONTENT."
SET content_read='".($content_data['content_read']+1)."'
WHERE content_id='".(int)$content_id."'");
// original filename
$filename = DIR_FS_CATALOG.'media/products/'.$content_data['content_file'];
$backup_filename = DIR_FS_CATALOG.'media/products/backup/'.$content_data['content_file'];
// create md5 hash id from original file
$orign_hash_id=md5_file($filename);
clearstatcache();
// create new filename with timestamp
$timestamp=str_replace('.','',microtime());
$timestamp=str_replace(' ','',$timestamp);
$new_filename=DIR_FS_CATALOG.'media/products/'.$timestamp.strstr($content_data['content_file'],'.');
// rename file
rename($filename,$new_filename);
if (file_exists($new_filename)) {
header("Content-type: application/force-download");
header("Content-Disposition: attachment; filename=".$new_filename);
@readfile($new_filename);
// rename file to original name
rename($new_filename,$filename);
$new_hash_id=md5_file($filename);
clearstatcache();
// check hash id of file again, if not same, get backup!
if ($new_hash_id!=$orign_hash_id) copy($backup_filename,$filename);
}
}
?>
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