RequestMethod
10 years ago
ReCaptcha.php
10 years ago
RequestMethod.php
10 years ago
RequestParameters.php
10 years ago
Response.php
10 years ago
ReCaptcha.php
98 lines
| 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 | |
| 27 | namespace ReCaptcha; |
| 28 | |
| 29 | /** |
| 30 | * reCAPTCHA client. |
| 31 | */ |
| 32 | class ReCaptcha |
| 33 | { |
| 34 | /** |
| 35 | * Version of this client library. |
| 36 | * @const string |
| 37 | */ |
| 38 | const VERSION = 'php_1.1.1'; |
| 39 | |
| 40 | /** |
| 41 | * Shared secret for the site. |
| 42 | * @var type string |
| 43 | */ |
| 44 | private $secret; |
| 45 | |
| 46 | /** |
| 47 | * Method used to communicate with service. Defaults to POST request. |
| 48 | * @var RequestMethod |
| 49 | */ |
| 50 | private $requestMethod; |
| 51 | |
| 52 | /** |
| 53 | * Create a configured instance to use the reCAPTCHA service. |
| 54 | * |
| 55 | * @param string $secret shared secret between site and reCAPTCHA server. |
| 56 | * @param RequestMethod $requestMethod method used to send the request. Defaults to POST. |
| 57 | */ |
| 58 | public function __construct($secret, RequestMethod $requestMethod = null) |
| 59 | { |
| 60 | if (empty($secret)) { |
| 61 | throw new \RuntimeException('No secret provided'); |
| 62 | } |
| 63 | |
| 64 | if (!is_string($secret)) { |
| 65 | throw new \RuntimeException('The provided secret must be a string'); |
| 66 | } |
| 67 | |
| 68 | $this->secret = $secret; |
| 69 | |
| 70 | if (!is_null($requestMethod)) { |
| 71 | $this->requestMethod = $requestMethod; |
| 72 | } else { |
| 73 | $this->requestMethod = new RequestMethod\Post(); |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * Calls the reCAPTCHA siteverify API to verify whether the user passes |
| 79 | * CAPTCHA test. |
| 80 | * |
| 81 | * @param string $response The value of 'g-recaptcha-response' in the submitted form. |
| 82 | * @param string $remoteIp The end user's IP address. |
| 83 | * @return Response Response from the service. |
| 84 | */ |
| 85 | public function verify($response, $remoteIp = null) |
| 86 | { |
| 87 | // Discard empty solution submissions |
| 88 | if (empty($response)) { |
| 89 | $recaptchaResponse = new Response(false, array('missing-input-response')); |
| 90 | return $recaptchaResponse; |
| 91 | } |
| 92 | |
| 93 | $params = new RequestParameters($this->secret, $response, $remoteIp, self::VERSION); |
| 94 | $rawResponse = $this->requestMethod->submit($params); |
| 95 | return Response::fromJson($rawResponse); |
| 96 | } |
| 97 | } |
| 98 |