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<?php |
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/* |
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* This file is part of the ReCaptcha Library. |
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* |
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* (c) Ilya Pokamestov <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace DS\Library\ReCaptcha; |
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use DS\Library\ReCaptcha\Http\Client\ClientInterface; |
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use DS\Library\ReCaptcha\Http\Client\SimpleClient; |
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use DS\Library\ReCaptcha\Http\Request; |
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use DS\Library\ReCaptcha\Http\Stream; |
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use DS\Library\ReCaptcha\Http\Uri; |
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use Psr\Http\Message\RequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\StreamInterface; |
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use Psr\Http\Message\UriInterface; |
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/** |
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* ReCaptcha library, Google reCaptcha v2 client. |
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* |
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* @author Ilya Pokamestov <[email protected]> |
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*/ |
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class Client |
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{ |
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/** |
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* Google reCaptcha verify url. |
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* @var string |
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*/ |
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public static $siteVerifyUri = 'https://www.google.com/recaptcha/api/siteverify'; |
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/** @var string */ |
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protected $secret; |
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/** @var ClientInterface */ |
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protected $httpClient; |
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/** @var UriInterface */ |
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protected $uri; |
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/** @var RequestInterface */ |
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protected $request; |
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/** @var ResponseInterface */ |
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protected $response; |
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/** @var string */ |
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protected $method = 'POST'; |
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/** |
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* Client constructor. |
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* @param string $secret |
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* @param UriInterface|string|null $verifyUri |
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* @param ClientInterface|null $httpClient |
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* @param string $requestMethod |
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*/ |
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public function __construct($secret, $httpClient = null, $verifyUri = null, $requestMethod = 'POST') |
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{ |
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$this->secret = $secret; |
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if (is_string($verifyUri)) { |
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$this->uri = new Uri($verifyUri); |
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} elseif ($verifyUri instanceof UriInterface) { |
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$this->uri = $verifyUri; |
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} else { |
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$this->uri = new Uri(self::$siteVerifyUri); |
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} |
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$this->httpClient = (null === $httpClient) ? new SimpleClient() : $httpClient; |
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$this->method = $requestMethod; |
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} |
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/** |
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* Get reCaptcha secret key. |
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* |
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* @return string |
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*/ |
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public function getSecret() |
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{ |
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return $this->secret; |
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} |
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/** |
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* @param string $googleResponseToken |
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* @param null|string $ip |
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* @return bool |
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*/ |
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public function validate($googleResponseToken, $ip = null) |
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{ |
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$this->request = new Request(); |
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$this->request->withUri($this->uri) |
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->withMethod($this->method) |
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->withBody($this->createBody($googleResponseToken, $ip)) |
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->withHeader('Content-type', 'application/x-www-form-urlencoded'); |
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return $this->validateRequest($this->request); |
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} |
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/** |
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* @param string $googleResponseToken |
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* @param null|string $ip |
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* @return StreamInterface |
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*/ |
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public function createBody($googleResponseToken, $ip = null) |
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{ |
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$parameters = array( |
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'secret' => $this->secret, |
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'response' => $googleResponseToken, |
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); |
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if (null !== $ip) { |
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$parameters['remoteip'] = $ip; |
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} |
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return new Stream($parameters); |
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} |
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/** |
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* @param RequestInterface $request |
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* @return bool |
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*/ |
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public function validateRequest(RequestInterface $request) |
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{ |
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$response = $this->send($request); |
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return $this->isValid($response); |
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} |
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/** |
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* @param ResponseInterface $response |
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* @return bool |
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* @throws ValidationException |
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*/ |
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public function isValid(ResponseInterface $response) |
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{ |
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$responseArray = json_decode($response->getBody()->getContents(), true); |
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if (isset($responseArray['error-codes'])) { |
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throw new ValidationException($responseArray['error-codes'], $response, $this->request); |
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} |
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if (isset($responseArray['success']) && $responseArray['success'] === true) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Send verification request |
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* |
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* @param RequestInterface $request |
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* @return ResponseInterface |
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*/ |
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public function send(RequestInterface $request) |
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{ |
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$this->request = $request; |
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if ($this->httpClient instanceof ClientInterface || method_exists($this->httpClient, 'send')) { |
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$this->response = $this->httpClient->send($request); |
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} else { |
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throw new \RuntimeException('HTTP Client must implement method send, and return ResponseInterface'); |
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} |
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return $this->response; |
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} |
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} |
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DarioSwain /
ReCaptchaLibrary
