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<?php
/**
* This is a PHP library that handles calling reCAPTCHA.
*
* @copyright Copyright (c) 2015, Google Inc.
* @link http://www.google.com/recaptcha
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
namespace ReCaptcha\RequestMethod;
use ReCaptcha\RequestMethod;
use ReCaptcha\RequestParameters;
/**
* Sends cURL request to the reCAPTCHA service.
* Note: this requires the cURL extension to be enabled in PHP
* @see http://php.net/manual/en/book.curl.php
*/
class CurlPost implements RequestMethod
{
/**
* URL to which requests are sent via cURL.
* @const string
*/
const SITE_VERIFY_URL = 'https://www.google.com/recaptcha/api/siteverify';
/**
* Curl connection to the reCAPTCHA service
* @var Curl
*/
private $curl;
public function __construct(Curl $curl = null)
{
if (!is_null($curl)) {
$this->curl = $curl;
} else {
$this->curl = new Curl();
}
}
/**
* 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;
}
}
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