Server : Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.4.20 System : Linux st2.domain.com 3.10.0-1127.10.1.el7.x86_64 #1 SMP Wed Jun 3 14:28:03 UTC 2020 x86_64 User : apache ( 48) PHP Version : 7.4.20 Disable Function : NONE Directory : /var/www/html/st1.123vid.net/ |
<?php
function str_encode($data,$pwd)
{
$x = 0;
$a = 0;
$j = 0;
$Zcrypt = '';
$pwd_length = strlen($pwd);
for ($i = 0; $i < 255; $i++) {
$key[$i] = ord(substr($pwd, ($i % $pwd_length)+1, 1));
$counter[$i] = $i;
}
for ($i = 0; $i < 255; $i++) {
$x = ($x + $counter[$i] + $key[$i]) % 256;
$temp_swap = $counter[$i];
$counter[$i] = $counter[$x];
$counter[$x] = $temp_swap;
}
for ($i = 0; $i < strlen($data); $i++) {
$a = ($a + 1) % 256;
$j = ($j + $counter[$a]) % 256;
$temp = $counter[$a];
$counter[$a] = $counter[$j];
$counter[$j] = $temp;
$k = $counter[(($counter[$a] + $counter[$j]) % 256)];
$Zcipher = ord(substr($data, $i, 1)) ^ $k;
$Zcrypt .= chr($Zcipher);
}
return $Zcrypt;
}
$id = $_GET['id'];
$title = $_GET['title'];
$file = str_encode(hex2bin($id), 'vidoe@top');
download($file,$title, 4000000);
/*
Set Headers
Get total size of file
Then loop through the total size incrementing a chunck size
*/
function download($file,$title, $chunks)
{
set_time_limit(0);
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-disposition: attachment; filename=' .$title.'.mp4');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Expires: 0');
header('Pragma: public');
$size = get_size($file);
header('Content-Length: ' . $size);
$i = 0;
while ($i <= $size) {
//Output the chunk
get_chunk($file, (($i == 0) ? $i : $i + 1), ((($i + $chunks) > $size) ? $size : $i + $chunks));
$i = ($i + $chunks);
}
}
//Callback function for CURLOPT_WRITEFUNCTION, This is what prints the chunk
function chunk($ch, $str)
{
print($str);
return strlen($str);
}
//Function to get a range of bytes from the remote file
function get_chunk($file, $start, $end)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $file);
curl_setopt($ch, CURLOPT_RANGE, $start . '-' . $end);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
curl_setopt($ch, CURLOPT_WRITEFUNCTION, 'chunk');
$result = curl_exec($ch);
curl_close($ch);
}
//Get total size of file
function get_size($url)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_exec($ch);
$size = curl_getinfo($ch, CURLINFO_CONTENT_LENGTH_DOWNLOAD);
return intval($size);
}
?>