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2 | daniel-mar | 1 | <?php |
2 | /** |
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3 | * This is a PHP library that handles calling reCAPTCHA. |
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4 | * |
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5 | * @copyright Copyright (c) 2015, Google Inc. |
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6 | * @link http://www.google.com/recaptcha |
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7 | * |
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8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
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9 | * of this software and associated documentation files (the "Software"), to deal |
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10 | * in the Software without restriction, including without limitation the rights |
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11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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12 | * copies of the Software, and to permit persons to whom the Software is |
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13 | * furnished to do so, subject to the following conditions: |
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14 | * |
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15 | * The above copyright notice and this permission notice shall be included in |
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16 | * all copies or substantial portions of the Software. |
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17 | * |
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18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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21 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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23 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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24 | * THE SOFTWARE. |
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25 | */ |
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26 | |||
27 | namespace ReCaptcha\RequestMethod; |
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28 | |||
29 | use ReCaptcha\RequestMethod; |
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30 | use ReCaptcha\RequestParameters; |
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31 | |||
32 | /** |
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33 | * Sends POST requests to the reCAPTCHA service. |
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34 | */ |
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35 | class Post implements RequestMethod |
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36 | { |
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37 | /** |
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38 | * URL to which requests are POSTed. |
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39 | * @const string |
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40 | */ |
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41 | const SITE_VERIFY_URL = 'https://www.google.com/recaptcha/api/siteverify'; |
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42 | |||
43 | /** |
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44 | * Submit the POST request with the specified parameters. |
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45 | * |
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46 | * @param RequestParameters $params Request parameters |
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47 | * @return string Body of the reCAPTCHA response |
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48 | */ |
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49 | public function submit(RequestParameters $params) |
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50 | { |
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51 | /** |
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52 | * PHP 5.6.0 changed the way you specify the peer name for SSL context options. |
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53 | * Using "CN_name" will still work, but it will raise deprecated errors. |
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54 | */ |
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55 | $peer_key = version_compare(PHP_VERSION, '5.6.0', '<') ? 'CN_name' : 'peer_name'; |
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56 | $options = array( |
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57 | 'http' => array( |
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58 | 'header' => "Content-type: application/x-www-form-urlencoded\r\n", |
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59 | 'method' => 'POST', |
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60 | 'content' => $params->toQueryString(), |
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61 | // Force the peer to validate (not needed in 5.6.0+, but still works) |
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62 | 'verify_peer' => true, |
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63 | // Force the peer validation to use www.google.com |
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64 | $peer_key => 'www.google.com', |
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65 | ), |
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66 | ); |
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67 | $context = stream_context_create($options); |
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68 | return file_get_contents(self::SITE_VERIFY_URL, false, $context); |
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69 | } |
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70 | } |