handlePass method
Implementation
void handlePass(String argument, FtpSession session) {
if ((session.username == null && session.password == null) ||
(session.cachedUsername == session.username &&
argument == session.password)) {
session.isAuthenticated = true;
session.sendResponse('230 User logged in, proceed');
} else {
session.sendResponse('530 Not logged in');
}
}