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<?php |
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namespace App\Validator\Constraints; |
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use ReCaptcha\ReCaptcha; |
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use Symfony\Component\HttpFoundation\RequestStack; |
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use Symfony\Component\Validator\Constraint; |
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use Symfony\Component\Validator\ConstraintValidator; |
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class ReCaptchaTrueValidator extends ConstraintValidator |
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{ |
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/** |
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* Enable recaptcha? |
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* |
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* @var bool |
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*/ |
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protected $enabled; |
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/** |
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* Recaptcha Private Key. |
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* |
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* @var string |
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*/ |
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protected $privateKey; |
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/** |
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* Request Stack. |
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* |
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* @var RequestStack |
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*/ |
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protected $requestStack; |
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/** |
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* HTTP Proxy information. |
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* |
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* @var array |
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*/ |
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protected $httpProxy; |
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/** |
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* Enable server side host check. |
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* |
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* @var bool |
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*/ |
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protected $verifyHost; |
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/** |
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* @param bool $enabled Whether ReCaptcha is enabled |
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* @param string $privateKey The private key |
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* @param RequestStack $requestStack The request stack |
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* @param bool $verifyHost Whether to verify the host |
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*/ |
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public function __construct($enabled, $privateKey, RequestStack $requestStack, $verifyHost) |
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{ |
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$this->enabled = $enabled; |
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$this->privateKey = $privateKey; |
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$this->requestStack = $requestStack; |
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$this->verifyHost = $verifyHost; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function validate($value, Constraint $constraint) |
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{ |
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// if recaptcha is disabled, always valid |
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if (!$this->enabled) { |
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return; |
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} |
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// define variable for recaptcha check answer |
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$masterRequest = $this->requestStack->getMasterRequest(); |
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$remoteip = $masterRequest->getClientIp(); |
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$answer = $masterRequest->get('g-recaptcha-response'); |
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// Verify user response with Google |
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$recaptcha = new ReCaptcha($this->privateKey); |
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$response = $recaptcha->verify($answer, $remoteip); |
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if (!$response->isSuccess()) { |
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$this->context->addViolation($constraint->message); |
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} elseif ($this->verifyHost && $response['hostname'] !== $masterRequest->getHost()) { |
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// Perform server side hostname check |
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$this->context->addViolation($constraint->invalidHostMessage); |
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} |
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} |
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} |
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