From 47c755a202b1ea0b42e17675dfb743139cce7f13 Mon Sep 17 00:00:00 2001
From: Giovanni Gioffreda <giovanni@satellite.co.nz>
Date: Wed, 22 Nov 2023 14:17:34 +1300
Subject: [PATCH] Allow using the IsTrue validator against a simple form field

By defaulting to the field value, we allow IsTrue validation
against any form field, without hardcoded field name
"g-recaptcha-response" in the request.

This is useful for example:
- when the "g-recaptcha-response" field cannot be sent with
  our request (neither through query string, or post, etc);
- when a custom widget is rendering the field, the name of
  such field cannot be (or should not be) controlled;
- when using third party UIs that support Symfony Forms and
  Validation but don't allow seting an out of scope
  variable to be sent to the server.

Example:

```php
$builder->add('_captcha', CaptchaType::class, [
  'required' => true,
  'constraints' => [
    new NotNull(),
    new IsTrue(), // verification token will be sent as "_captcha"
]);
```
---
 src/Validator/Constraints/IsTrueValidator.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Validator/Constraints/IsTrueValidator.php b/src/Validator/Constraints/IsTrueValidator.php
index 963329a..318e82a 100755
--- a/src/Validator/Constraints/IsTrueValidator.php
+++ b/src/Validator/Constraints/IsTrueValidator.php
@@ -102,7 +102,7 @@ public function validate($value, Constraint $constraint): void
 
         $remoteip = $request->getClientIp();
         // define variable for recaptcha check answer
-        $answer = $request->get('g-recaptcha-response');
+        $answer = $request->get('g-recaptcha-response', $value);
 
         // Verify user response with Google
         $response = $this->recaptcha->verify($answer, $remoteip);