| 0,0 → 1,121 |
|---|
| <?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 a POST request to the reCAPTCHA service, but makes use of fsockopen() |
| * instead of get_file_contents(). This is to account for people who may be on |
| * servers where allow_url_open is disabled. |
| */ |
| class SocketPost implements RequestMethod |
| { |
| /** |
| * reCAPTCHA service host. |
| * @const string |
| */ |
| const RECAPTCHA_HOST = 'www.google.com'; |
| |
| /** |
| * @const string reCAPTCHA service path |
| */ |
| const SITE_VERIFY_PATH = '/recaptcha/api/siteverify'; |
| |
| /** |
| * @const string Bad request error |
| */ |
| const BAD_REQUEST = '{"success": false, "error-codes": ["invalid-request"]}'; |
| |
| /** |
| * @const string Bad response error |
| */ |
| const BAD_RESPONSE = '{"success": false, "error-codes": ["invalid-response"]}'; |
| |
| /** |
| * Socket to the reCAPTCHA service |
| * @var Socket |
| */ |
| private $socket; |
| |
| /** |
| * Constructor |
| * |
| * @param \ReCaptcha\RequestMethod\Socket $socket optional socket, injectable for testing |
| */ |
| public function __construct(Socket $socket = null) |
| { |
| if (!is_null($socket)) { |
| $this->socket = $socket; |
| } else { |
| $this->socket = new Socket(); |
| } |
| } |
| |
| /** |
| * Submit the POST request with the specified parameters. |
| * |
| * @param RequestParameters $params Request parameters |
| * @return string Body of the reCAPTCHA response |
| */ |
| public function submit(RequestParameters $params) |
| { |
| $errno = 0; |
| $errstr = ''; |
| |
| if (false === $this->socket->fsockopen('ssl://' . self::RECAPTCHA_HOST, 443, $errno, $errstr, 30)) { |
| return self::BAD_REQUEST; |
| } |
| |
| $content = $params->toQueryString(); |
| |
| $request = "POST " . self::SITE_VERIFY_PATH . " HTTP/1.1\r\n"; |
| $request .= "Host: " . self::RECAPTCHA_HOST . "\r\n"; |
| $request .= "Content-Type: application/x-www-form-urlencoded\r\n"; |
| $request .= "Content-length: " . strlen($content) . "\r\n"; |
| $request .= "Connection: close\r\n\r\n"; |
| $request .= $content . "\r\n\r\n"; |
| |
| $this->socket->fwrite($request); |
| $response = ''; |
| |
| while (!$this->socket->feof()) { |
| $response .= $this->socket->fgets(4096); |
| } |
| |
| $this->socket->fclose(); |
| |
| if (0 !== strpos($response, 'HTTP/1.1 200 OK')) { |
| return self::BAD_RESPONSE; |
| } |
| |
| $parts = preg_split("#\n\s*\n#Uis", $response); |
| |
| return $parts[1]; |
| } |
| } |