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<?php |
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/** |
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* This is a PHP library that handles calling reCAPTCHA. |
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* |
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* BSD 3-Clause License |
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* @copyright (c) 2019, Google Inc. |
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* @link https://www.google.com/recaptcha |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* 1. Redistributions of source code must retain the above copyright notice, this |
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* list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright notice, |
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* this list of conditions and the following disclaimer in the documentation |
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* and/or other materials provided with the distribution. |
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* |
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* 3. Neither the name of the copyright holder nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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|
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namespace ReCaptcha\RequestMethod; |
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|
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use ReCaptcha\ReCaptcha; |
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use ReCaptcha\RequestMethod; |
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use ReCaptcha\RequestParameters; |
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|
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/** |
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* Sends a POST request to the reCAPTCHA service, but makes use of fsockopen() |
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* instead of get_file_contents(). This is to account for people who may be on |
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* servers where allow_url_open is disabled. |
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*/ |
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class SocketPost implements RequestMethod |
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{ |
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/** |
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* Socket to the reCAPTCHA service |
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* @var Socket |
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*/ |
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private $socket; |
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|
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/** |
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* Only needed if you want to override the defaults |
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* |
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* @param \ReCaptcha\RequestMethod\Socket $socket optional socket, injectable for testing |
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* @param string $siteVerifyUrl URL for reCAPTCHA siteverify API |
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*/ |
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public function __construct(Socket $socket = null, $siteVerifyUrl = null) |
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{ |
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$this->socket = (is_null($socket)) ? new Socket() : $socket; |
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$this->siteVerifyUrl = (is_null($siteVerifyUrl)) ? ReCaptcha::SITE_VERIFY_URL : $siteVerifyUrl; |
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} |
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|
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/** |
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* Submit the POST request with the specified parameters. |
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* |
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* @param RequestParameters $params Request parameters |
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* @return string Body of the reCAPTCHA response |
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*/ |
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public function submit(RequestParameters $params) |
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{ |
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$errno = 0; |
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$errstr = ''; |
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$urlParsed = parse_url($this->siteVerifyUrl); |
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|
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if (false === $this->socket->fsockopen('ssl://' . $urlParsed['host'], 443, $errno, $errstr, 30)) { |
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return '{"success": false, "error-codes": ["'.ReCaptcha::E_CONNECTION_FAILED.'"]}'; |
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} |
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|
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$content = $params->toQueryString(); |
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|
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$request = "POST " . $urlParsed['path'] . " HTTP/1.1\r\n"; |
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$request .= "Host: " . $urlParsed['host'] . "\r\n"; |
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$request .= "Content-Type: application/x-www-form-urlencoded\r\n"; |
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$request .= "Content-length: " . strlen($content) . "\r\n"; |
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$request .= "Connection: close\r\n\r\n"; |
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$request .= $content . "\r\n\r\n"; |
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|
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$this->socket->fwrite($request); |
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$response = ''; |
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|
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while (!$this->socket->feof()) { |
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$response .= $this->socket->fgets(4096); |
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} |
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|
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$this->socket->fclose(); |
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|
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if (0 !== strpos($response, 'HTTP/1.1 200 OK')) { |
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return '{"success": false, "error-codes": ["'.ReCaptcha::E_BAD_RESPONSE.'"]}'; |
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} |
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|
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$parts = preg_split("#\n\s*\n#Uis", $response); |
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|
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return $parts[1]; |
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} |
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} |
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|
