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/**
* 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 POST requests to the reCAPTCHA service.
*/
class Post implements RequestMethod
{
/**
* URL to which requests are POSTed.
* @const string
*/
const SITE_VERIFY_URL = 'https://www.google.com/recaptcha/api/siteverify';
/**
* 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(),
// Force the peer to validate (not needed in 5.6.0+, but still works
'verify_peer' => true,
// Force the peer validation to use www.google.com
$peer_key => 'www.google.com',
),
);
$context = stream_context_create($options);
return file_get_contents(self::SITE_VERIFY_URL, false, $context);
}
}