CaptchaTool

if (!req.body.validatedCaptcha) {
      return res.status(400).send('CAPTCHA failed or not completed.');
    }

if not request.form.get('validatedCaptcha'):
        return 'CAPTCHA failed or not completed.', 400

if (validatedCaptcha == null || validatedCaptcha.isEmpty()) {
      return ResponseEntity.status(HttpStatus.BAD_REQUEST).body("CAPTCHA failed or not completed.");
    }

if r.FormValue("validatedCaptcha") == "" {
      http.Error(w, "CAPTCHA failed or not completed.", http.StatusBadRequest)
    }

if validated_captcha.is_empty() {
      return Err((StatusCode::BAD_REQUEST, "CAPTCHA failed or not completed."));
    }

if params[:validatedCaptcha].blank?
      render plain: "CAPTCHA failed or not completed.", status: :bad_request
    end

if (string.IsNullOrWhiteSpace(Request.Form["validatedCaptcha"])) {
                return BadRequest("CAPTCHA failed or not completed.");
              }