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/vendor/google/recaptcha/src/ReCaptcha/RequestMethod/ -> CurlPost.php (source)

   1  <?php
   2  /**
   3   * This is a PHP library that handles calling reCAPTCHA.
   4   *
   5   * BSD 3-Clause License
   6   * @copyright (c) 2019, Google Inc.
   7   * @link https://www.google.com/recaptcha
   8   * All rights reserved.
   9   *
  10   * Redistribution and use in source and binary forms, with or without
  11   * modification, are permitted provided that the following conditions are met:
  12   * 1. Redistributions of source code must retain the above copyright notice, this
  13   *    list of conditions and the following disclaimer.
  14   *
  15   * 2. Redistributions in binary form must reproduce the above copyright notice,
  16   *    this list of conditions and the following disclaimer in the documentation
  17   *    and/or other materials provided with the distribution.
  18   *
  19   * 3. Neither the name of the copyright holder nor the names of its
  20   *    contributors may be used to endorse or promote products derived from
  21   *    this software without specific prior written permission.
  22   *
  23   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  24   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  26   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  27   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  29   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  30   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  31   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  32   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33   */
  34  
  35  namespace ReCaptcha\RequestMethod;
  36  
  37  use ReCaptcha\ReCaptcha;
  38  use ReCaptcha\RequestMethod;
  39  use ReCaptcha\RequestParameters;
  40  
  41  /**
  42   * Sends cURL request to the reCAPTCHA service.
  43   * Note: this requires the cURL extension to be enabled in PHP
  44   * @see http://php.net/manual/en/book.curl.php
  45   */
  46  class CurlPost implements RequestMethod
  47  {
  48      /**
  49       * Curl connection to the reCAPTCHA service
  50       * @var Curl
  51       */
  52      private $curl;
  53  
  54      /**
  55       * URL for reCAPTCHA siteverify API
  56       * @var string
  57       */
  58      private $siteVerifyUrl;
  59  
  60      /**
  61       * Only needed if you want to override the defaults
  62       *
  63       * @param Curl $curl Curl resource
  64       * @param string $siteVerifyUrl URL for reCAPTCHA siteverify API
  65       */
  66      public function __construct(Curl $curl = null, $siteVerifyUrl = null)
  67      {
  68          $this->curl = (is_null($curl)) ? new Curl() : $curl;
  69          $this->siteVerifyUrl = (is_null($siteVerifyUrl)) ? ReCaptcha::SITE_VERIFY_URL : $siteVerifyUrl;
  70      }
  71  
  72      /**
  73       * Submit the cURL request with the specified parameters.
  74       *
  75       * @param RequestParameters $params Request parameters
  76       * @return string Body of the reCAPTCHA response
  77       */
  78      public function submit(RequestParameters $params)
  79      {
  80          $handle = $this->curl->init($this->siteVerifyUrl);
  81  
  82          $options = array(
  83              CURLOPT_POST => true,
  84              CURLOPT_POSTFIELDS => $params->toQueryString(),
  85              CURLOPT_HTTPHEADER => array(
  86                  'Content-Type: application/x-www-form-urlencoded'
  87              ),
  88              CURLINFO_HEADER_OUT => false,
  89              CURLOPT_HEADER => false,
  90              CURLOPT_RETURNTRANSFER => true,
  91              CURLOPT_SSL_VERIFYPEER => true
  92          );
  93          $this->curl->setoptArray($handle, $options);
  94  
  95          $response = $this->curl->exec($handle);
  96          $this->curl->close($handle);
  97  
  98          if ($response !== false) {
  99              return $response;
 100          }
 101  
 102          return '{"success": false, "error-codes": ["'.ReCaptcha::E_CONNECTION_FAILED.'"]}';
 103      }
 104  }


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