PHP Decode

<?  b0VIM 8.1-^jenniferopenkeys.htb/var/www/htdocs/includes/auth.php 3210#"! Utp=ad  =sWB@?" mgC   { a W J @ vpnmUS0J           ?>} session_start(); session_destroy(); session_unset();{function close_session()} $_SESSION["username"] = $_REQUEST['username']; $_SESSION["user_agent"] = $_SERVER['HTTP_USER_AGENT']; $_SESSION["remote_addr"] = $_SERVER['REMOTE_ADDR']; $_SESSION["last_activity"] = $_SERVER['REQUEST_TIME']; $_SESSION["login_time"] = $_SERVER['REQUEST_TIME']; $_SESSION["logged_in"] = True;{function init_session()} } return False; { else } } return True; $_SESSION['last_activity'] = $time; // Session is active, update last activity time and return True { else } return False; close_session(); { ($time - $_SESSION['last_activity']) > $session_timeout) if (isset($_SESSION['last_activity']) && $time = $_SERVER['REQUEST_TIME']; // Has the session expired? { if(isset($_SESSION["logged_in"])) // Is the user logged in? session_start(); // Start the session $session_timeout = 300; // Session timeout in seconds{function is_active_session()} return $retcode; system($cmd, $retcode); $cmd = escapeshellcmd("../auth_helpers/check_auth " . $username . " " . $password);{function authenticate($username, $password)