CurlPost.php in reCAPTCHA 6.2

Namespace

ReCaptcha\RequestMethod

File

recaptcha-php/src/ReCaptcha/RequestMethod/CurlPost.php

<?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;
  }

}

Classes

Name	Description
CurlPost	Sends cURL request to the reCAPTCHA service. Note: this requires the cURL extension to be enabled in PHP