<?php
$logFile = "connections.log";
$secret = $_POST['secret'] ?? '';
if ($secret !== "mySuperSecretKey") {
    http_response_code(403);
    exit("Access Denied");
}

$license = $_POST['license'] ?? 'unknown';
$ip = $_POST['ip'] ?? 'unknown';
$serial = $_POST['serial'] ?? 'unknown';
$time = date("Y-m-d H:i:s");

$entry = "[$time] License: $license | IP: $ip | Serial: $serial\n";
file_put_contents($logFile, $entry, FILE_APPEND);
?>