protected function onRun(array $args, User $user)
 {
     if (!isset($args[0])) {
         return "Usage: " . $this->getUsage();
     }
     $password = $args[0];
     $hash = HereAuth::hash($password, $user->getPlayer());
     $firstHash = $user->getChangepwHash();
     if ($firstHash !== null) {
         $user->setChangepwHash(null);
         if ($firstHash === $hash) {
             $user->getAccountInfo()->passwordHash = $hash;
             return $this->getMessage("Commands.ChangePassword.Success", "Your password has been changed.");
         }
         return $this->getMessage("Commands.ChangePassword.DoubleCheckFailure", "Your password is different this time! Aborted.");
     }
     if (!PasswordInputRegistrationStep::validatePassword($user, $password)) {
         return false;
     }
     $user->setChangepwHash($hash);
     return $this->getMessage("Commands.ChangePassword.RequestRepeat", "Please run this command again to confirm.");
 }