71 lines
2.7 KiB
PHP
71 lines
2.7 KiB
PHP
<?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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* @copyright Copyright (c) 2015, Google Inc.
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* @link http://www.google.com/recaptcha
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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namespace ReCaptcha\RequestMethod;
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use ReCaptcha\RequestMethod;
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use ReCaptcha\RequestParameters;
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/**
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* Sends POST requests to the reCAPTCHA service.
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*/
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class Post implements RequestMethod
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{
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/**
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* URL to which requests are POSTed.
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* @const string
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*/
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const SITE_VERIFY_URL = 'https://www.google.com/recaptcha/api/siteverify';
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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 $params)
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{
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/**
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* PHP 5.6.0 changed the way you specify the peer name for SSL context options.
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* Using "CN_name" will still work, but it will raise deprecated errors.
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*/
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$peer_key = version_compare(PHP_VERSION, '5.6.0', '<') ? 'CN_name' : 'peer_name';
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$options = array(
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'http' => array(
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'header' => "Content-type: application/x-www-form-urlencoded\r\n",
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'method' => 'POST',
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'content' => $params->toQueryString(),
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// Force the peer to validate (not needed in 5.6.0+, but still works
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'verify_peer' => true,
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// Force the peer validation to use www.google.com
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$peer_key => 'www.google.com',
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),
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);
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$context = stream_context_create($options);
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return file_get_contents(self::SITE_VERIFY_URL, false, $context);
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}
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}
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