handlePass method

void handlePass(String argument, FtpSession session)

Implementation

void handlePass(String argument, FtpSession session) {
  if (session.cachedUsername == null) {
    session.sendResponse('503 Bad sequence of commands');
    return;
  }
  // No credentials configured — accept anyone
  if (session.username == null && session.password == null) {
    session.isAuthenticated = true;
    session.sendResponse('230 User logged in, proceed');
    return;
  }
  // Validate only the non-null credentials
  final userOk =
      session.username == null || session.cachedUsername == session.username;
  final passOk = session.password == null || argument == session.password;
  if (userOk && passOk) {
    session.isAuthenticated = true;
    session.sendResponse('230 User logged in, proceed');
  } else {
    session.sendResponse('530 Not logged in');
  }
}