Post.php 2.7 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970
  1. <?php
  2. /**
  3. * This is a PHP library that handles calling reCAPTCHA.
  4. *
  5. * @copyright Copyright (c) 2015, Google Inc.
  6. * @link http://www.google.com/recaptcha
  7. *
  8. * Permission is hereby granted, free of charge, to any person obtaining a copy
  9. * of this software and associated documentation files (the "Software"), to deal
  10. * in the Software without restriction, including without limitation the rights
  11. * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12. * copies of the Software, and to permit persons to whom the Software is
  13. * furnished to do so, subject to the following conditions:
  14. *
  15. * The above copyright notice and this permission notice shall be included in
  16. * all copies or substantial portions of the Software.
  17. *
  18. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20. * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21. * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22. * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23. * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24. * THE SOFTWARE.
  25. */
  26. namespace ReCaptcha\RequestMethod;
  27. use ReCaptcha\RequestMethod;
  28. use ReCaptcha\RequestParameters;
  29. /**
  30. * Sends POST requests to the reCAPTCHA service.
  31. */
  32. class Post implements RequestMethod
  33. {
  34. /**
  35. * URL to which requests are POSTed.
  36. * @const string
  37. */
  38. const SITE_VERIFY_URL = 'https://www.google.com/recaptcha/api/siteverify';
  39. /**
  40. * Submit the POST request with the specified parameters.
  41. *
  42. * @param RequestParameters $params Request parameters
  43. * @return string Body of the reCAPTCHA response
  44. */
  45. public function submit(RequestParameters $params)
  46. {
  47. /**
  48. * PHP 5.6.0 changed the way you specify the peer name for SSL context options.
  49. * Using "CN_name" will still work, but it will raise deprecated errors.
  50. */
  51. $peer_key = version_compare(PHP_VERSION, '5.6.0', '<') ? 'CN_name' : 'peer_name';
  52. $options = array(
  53. 'http' => array(
  54. 'header' => "Content-type: application/x-www-form-urlencoded\r\n",
  55. 'method' => 'POST',
  56. 'content' => $params->toQueryString(),
  57. // Force the peer to validate (not needed in 5.6.0+, but still works
  58. 'verify_peer' => true,
  59. // Force the peer validation to use www.google.com
  60. $peer_key => 'www.google.com',
  61. ),
  62. );
  63. $context = stream_context_create($options);
  64. return file_get_contents(self::SITE_VERIFY_URL, false, $context);
  65. }
  66. }