function handle_auth()
{
$request = Flight::request();
//incoming=
//outgoing=
$stage = $request->query->stage;
$ip = $request->query->ip;
$mac = $request->query->mac;
$token = $request->query->token;
if (empty($stage) || empty($ip) || empty($mac) || empty($token)) {
//Flight::Error('Required parameters empty!');
write_auth_response(AUTH_ERROR);
}
// Do some housekeeping
clear_old_tokens();
// Even on STAGE_COUNTER, check token
//if ($stage == STAGE_COUNTER) {
// return;
//}
if (is_token_valid($token)) {
write_auth_response(AUTH_ALLOWED);
return;
}
write_auth_response(AUTH_DENIED);
}
function make_token()
{
// Temporary: purge tokens more often
// Tokens are cleared on GW communication,
// but there is no gateway right now
clear_old_tokens();
$db = Flight::db();
$token = generate_token();
$stmt = $db->prepare('INSERT INTO tokens (token) VALUES (:token)');
$stmt->bindParam(':token', $token);
$stmt->execute();
return $token;
}