/**
* Submit the POST request with the specified parameters.
*
* @param RequestParameters $params Request parameters
* @return string Body of the reCAPTCHA response
*/
public function submit(RequestParameters $params)
{
$errno = 0;
$errstr = '';
if (false === $this->socket->fsockopen('ssl://' . self::RECAPTCHA_HOST, 443, $errno, $errstr, 30)) {
return self::BAD_REQUEST;
}
$content = $params->toQueryString();
$request = "POST " . self::SITE_VERIFY_PATH . " HTTP/1.1\r\n";
$request .= "Host: " . self::RECAPTCHA_HOST . "\r\n";
$request .= "Content-Type: application/x-www-form-urlencoded\r\n";
$request .= "Content-length: " . strlen($content) . "\r\n";
$request .= "Connection: close\r\n\r\n";
$request .= $content . "\r\n\r\n";
$this->socket->fwrite($request);
$response = '';
while (!$this->socket->feof()) {
$response .= $this->socket->fgets(4096);
}
$this->socket->fclose();
if (0 !== strpos($response, 'HTTP/1.1 200 OK')) {
return self::BAD_RESPONSE;
}
$parts = preg_split("#\n\\s*\n#Uis", $response);
return $parts[1];
}
/**
* Submit the cURL request with the specified parameters.
*
* @param RequestParameters $params Request parameters
* @return string Body of the reCAPTCHA response
*/
public function submit(RequestParameters $params)
{
$handle = $this->curl->init(self::SITE_VERIFY_URL);
$options = array(CURLOPT_POST => true, CURLOPT_POSTFIELDS => $params->toQueryString(), CURLOPT_HTTPHEADER => array('Content-Type: application/x-www-form-urlencoded'), CURLINFO_HEADER_OUT => false, CURLOPT_HEADER => false, CURLOPT_RETURNTRANSFER => true, CURLOPT_SSL_VERIFYPEER => true);
$this->curl->setoptArray($handle, $options);
$response = $this->curl->exec($handle);
$this->curl->close($handle);
return $response;
}
/**
* Submit the POST request with the specified parameters.
*
* @param RequestParameters $params Request parameters
* @return string Body of the reCAPTCHA response
*/
public function submit(RequestParameters $params)
{
/**
* PHP 5.6.0 changed the way you specify the peer name for SSL context options.
* Using "CN_name" will still work, but it will raise deprecated errors.
*/
$peer_key = version_compare(PHP_VERSION, '5.6.0', '<') ? 'CN_name' : 'peer_name';
$options = array('http' => array('header' => "Content-type: application/x-www-form-urlencoded\r\n", 'method' => 'POST', 'content' => $params->toQueryString(), 'verify_peer' => true, $peer_key => 'www.google.com'));
$context = stream_context_create($options);
return file_get_contents(self::SITE_VERIFY_URL, false, $context);
}
