newznab-tmux/app/Rules/RecaptchaRule.php

<?php

declare(strict_types=1);

namespace App\Rules;

use App\Services\RecaptchaService;
use Closure;
use Illuminate\Contracts\Validation\ValidationRule;

class RecaptchaRule implements ValidationRule
{
    /**
     * Validate the reCAPTCHA response token.
     *
     * @param  Closure(string): void  $fail
     */
    public function validate(string $attribute, mixed $value, Closure $fail): void
    {
        if (! is_string($value) || $value === '') {
            $fail('Please complete the captcha verification.');

            return;
        }

        if (! RecaptchaService::verify($value)) {
            $fail('The captcha verification failed. Please try again.');
        }
    }
}