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/st2/logs/v2/src/CloudflareBypass/ |
<?php
namespace CloudflareBypass;
class Storage
{
/**
* Path storage
*
* @var string
*/
protected $path;
/**
* Creates Cache directory if it does NOT exist
*
* @access public
* @throws \ErrorException if cache directory CAN NOT be created
*/
public function __construct($path)
{
$this->path = $path;
// Suffix path with forward-slash if not done already.
if (substr($this->path, -1) !== "/") {
$this->path .= "/";
}
$this->createBaseFolder();
}
/**
* Create base folder path
*
* @return void
*/
public function createBaseFolder()
{
if (!is_dir($this->path)) {
if (!mkdir($this->path, 0755, true)) {
throw new \ErrorException('Unable to create Cache directory!');
}
}
}
/**
* Returns clearance tokens from the specified cache file.
*
* @access public
* @param $site_host Site host
* @throws \ErrorException if $site_host IS empty
* @return array Clearance tokens or FALSE
*/
public function fetch($site_host)
{
if (trim($site_host) === "") {
throw new \ErrorException("Site host should not be empty!");
}
// Construct cache file endpoint.
$file = md5($site_host);
if (!file_exists($this->path . $file)) {
if (preg_match('/^www./', $site_host)) {
$file = md5(substr($site_host, 4));
}
}
if (file_exists($this->path . $file)) {
return json_decode(file_get_contents($this->path . $file), true);
}
return false;
}
/**
* Stores clearance tokens into a cache file in cache folder.
*
* File name: Data:
* -------------------------------------------
* md5( file name ) {"__cfduid":"<cfduid>", "cf_clearance":"<cf_clearance>"}
*
* @access public
* @param string $site_host site host name
* @param array $clearance_tokens Associative array containing "__cfduid" and "cf_clearance" cookies
* @throws \ErrorException if $site_host IS empty
* @throws \ErrorException if $clearance_tokens IS missing token fields, OR contains rubbish
* @throws \ErrorException if file_put_contents FAILS to write to file
*/
public function store($site_host, $clearance_tokens)
{
if (trim($site_host) === "") {
throw new \ErrorException("Site host should not be empty!");
}
if (!(
is_array($clearance_tokens) &&
isset($clearance_tokens['__cfduid']) &&
isset($clearance_tokens['cf_clearance'])
)) {
throw new \ErrorException("Clearance tokens not in a valid format!");
}
// Construct cache file endpoint.
$filename = $this->path . md5($site_host);
// Perform data retention duties.
$this->retention();
if (!file_put_contents($filename, json_encode($clearance_tokens))) {
// Remove file if it exists.
if (file_exists($filename)) {
unlink($filename);
}
}
}
/**
* Deletes files from cache folder which are older than 24 hours.
*
* @access private
*/
private function retention()
{
if ($handle = opendir($this->path)) {
while (false !== ($file = readdir($handle))) {
// Skip special directories.
if ('.' === $file || '..' === $file || strpos($file, '.') === 0) {
continue;
}
// Delete file if last modified over 24 hours ago.
if (time()-filemtime($this->path . "/" . $file) > 86400) {
unlink($this->path . "/". $file);
}
}
}
}
}