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<?php |
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namespace ReCaptcha2\Captcha; |
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use Zend\Captcha\AbstractAdapter; |
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use Zend\Captcha\Exception; |
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class ReCaptcha2 extends AbstractAdapter |
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{ |
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/** |
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* @var ServiceInterface |
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*/ |
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protected $service; |
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/**#@+ |
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* Error codes |
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*/ |
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const ERROR_CAPTCHA_GENERAL = 'error-captcha-general'; |
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const MISSING_INPUT_RESPONSE = 'missing-input-response'; |
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const INVALID_INPUT_RESPONSE = 'invalid-input-response'; |
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const MISSING_INPUT_SECRET = 'missing-input-secret'; |
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const INVALID_INPUT_SECRET = 'invalid-input-secret'; |
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/**#@-*/ |
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/** |
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* Error messages |
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* @var array |
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*/ |
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protected $messageTemplates = [ |
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self::ERROR_CAPTCHA_GENERAL => 'Failed to validate captcha', |
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self::MISSING_INPUT_RESPONSE => 'Missing captcha fields', |
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self::INVALID_INPUT_RESPONSE => 'Captcha value is wrong: %value%', |
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self::MISSING_INPUT_SECRET => 'Missing captcha secret', |
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self::INVALID_INPUT_SECRET => 'Invalid captcha secret', |
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]; |
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/** |
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* @param array|\Traversable $options |
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* @throws Exception\DomainException |
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* @return ReCaptcha2 |
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*/ |
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public function setOptions($options = []) |
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{ |
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if (array_key_exists('service', $options)) { |
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$this->setService($options['service']); |
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unset($options['service']); |
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} |
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parent::setOptions($options); |
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return $this; |
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} |
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/** |
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* @return ServiceInterface |
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*/ |
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public function getService() |
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{ |
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if (null === $this->service) { |
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$this->service = new NoCaptchaService; |
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} |
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return $this->service; |
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} |
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/** |
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* @param array|\Traversable|ServiceInterface $service |
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* @return ReCaptcha2 |
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*/ |
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public function setService($service) |
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{ |
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$serviceOptions = []; |
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if (is_array($service)) { |
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$serviceOptions = isset($service['options']) ? $service['options'] : []; |
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$service = isset($service['class']) ? $service['class'] : NoCaptchaService::class; |
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} |
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if (is_string($service)) { |
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if (!class_exists($service)) { |
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throw new Exception\InvalidArgumentException(sprintf( |
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'Unable to locate service class "%s"', |
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$service |
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)); |
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} |
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$service = new $service($serviceOptions); |
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} |
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if (!isset($service) || !$service instanceof ServiceInterface) { |
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throw new Exception\DomainException(sprintf( |
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'%s expects a valid implementation of %s; received "%s"', |
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__METHOD__, |
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ServiceInterface::class, |
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(is_object($service) ? get_class($service) : gettype($service)) |
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)); |
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} |
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$this->service = $service; |
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return $this; |
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} |
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/** |
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* @see ServiceInterface::getSiteKey() |
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*/ |
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public function getSiteKey() |
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{ |
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return $this->getService()->getSiteKey(); |
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} |
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/** |
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* @see ServiceInterface::setSiteKey() |
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*/ |
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public function setSiteKey($siteKey) |
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{ |
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$this->getService()->setSiteKey($siteKey); |
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return $this; |
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} |
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/** |
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* @see ServiceInterface::getSecretKey() |
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*/ |
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public function getSecretKey() |
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{ |
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return $this->getService()->getSecretKey(); |
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} |
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/** |
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* @see ServiceInterface::setSecretKey() |
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*/ |
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public function setSecretKey($secretKey) |
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{ |
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$this->getService()->setSecretKey($secretKey); |
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return $this; |
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} |
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/** |
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* @see AbstractAdapter::generate() |
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* @return string |
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*/ |
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public function generate() |
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{ |
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return ''; |
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} |
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/** |
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* @see \Zend\Validator\ValidatorInterface::isValid() |
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* @param mixed $value |
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* @param mixed $context |
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* @return boolean |
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*/ |
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public function isValid($value, $context = null) |
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{ |
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if (!is_array($value) && !is_array($context)) { |
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$this->error(self::MISSING_INPUT_RESPONSE); |
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return false; |
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} |
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if (!is_array($value) && is_array($context)) { |
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$value = $context; |
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} |
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if (empty($value['g-recaptcha-response'])) { |
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$this->error(self::MISSING_INPUT_RESPONSE); |
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return false; |
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} |
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$service = $this->getService(); |
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$res = $service->verify($value['g-recaptcha-response']); |
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if (!$res) { |
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$this->error(self::ERROR_CAPTCHA_GENERAL); |
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return false; |
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} |
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if (!$res->isValid()) { |
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$errorCodes = $res->getErrorCodes(); |
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if (!empty($errorCodes)) { |
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foreach ($errorCodes as $errorCode) { |
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$this->error(self::INVALID_INPUT_RESPONSE, $errorCode); |
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} |
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return false; |
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} |
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$this->error(self::ERROR_CAPTCHA_GENERAL); |
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return false; |
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} |
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return true; |
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} |
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/** |
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* @return string |
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*/ |
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public function getHelperName() |
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{ |
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return 'captcha/recaptcha2'; |
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} |
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} |
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