user-submitted-posts / recaptcha / ReCaptcha / RequestMethod / CurlPost.php

CurlPost.php in User Submitted Posts – Enable Users to Submit Posts from the Front End 20241026, at recaptcha/ReCaptcha/RequestMethod/CurlPost.php

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1	<?php
2	/**
3	* This is a PHP library that handles calling reCAPTCHA.
4	*
5	* BSD 3-Clause License
6	* @copyright (c) 2019, Google Inc.
7	* @link https://www.google.com/recaptcha
8	* All rights reserved.
9	*
10	* Redistribution and use in source and binary forms, with or without
11	* modification, are permitted provided that the following conditions are met:
12	* 1. Redistributions of source code must retain the above copyright notice, this
13	* list of conditions and the following disclaimer.
14	*
15	* 2. Redistributions in binary form must reproduce the above copyright notice,
16	* this list of conditions and the following disclaimer in the documentation
17	* and/or other materials provided with the distribution.
18	*
19	* 3. Neither the name of the copyright holder nor the names of its
20	* contributors may be used to endorse or promote products derived from
21	* this software without specific prior written permission.
22	*
23	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
24	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
27	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
30	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
31	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33	*/
34
35	namespace ReCaptcha\RequestMethod;
36
37	use ReCaptcha\ReCaptcha;
38	use ReCaptcha\RequestMethod;
39	use ReCaptcha\RequestParameters;
40
41	/**
42	* Sends cURL request to the reCAPTCHA service.
43	* Note: this requires the cURL extension to be enabled in PHP
44	* @see http://php.net/manual/en/book.curl.php
45	*/
46	class CurlPost implements RequestMethod
47	{
48	/**
49	* Curl connection to the reCAPTCHA service
50	* @var Curl
51	*/
52	private $curl;
53
54	/**
55	* URL for reCAPTCHA siteverify API
56	* @var string
57	*/
58	private $siteVerifyUrl;
59
60	/**
61	* Only needed if you want to override the defaults
62	*
63	* @param Curl $curl Curl resource
64	* @param string $siteVerifyUrl URL for reCAPTCHA siteverify API
65	*/
66	public function __construct(Curl $curl = null, $siteVerifyUrl = null)
67	{
68	$this->curl = (is_null($curl)) ? new Curl() : $curl;
69	$this->siteVerifyUrl = (is_null($siteVerifyUrl)) ? ReCaptcha::SITE_VERIFY_URL : $siteVerifyUrl;
70	}
71
72	/**
73	* Submit the cURL request with the specified parameters.
74	*
75	* @param RequestParameters $params Request parameters
76	* @return string Body of the reCAPTCHA response
77	*/
78	public function submit(RequestParameters $params)
79	{
80	$handle = $this->curl->init($this->siteVerifyUrl);
81
82	$options = array(
83	CURLOPT_POST => true,
84	CURLOPT_POSTFIELDS => $params->toQueryString(),
85	CURLOPT_HTTPHEADER => array(
86	'Content-Type: application/x-www-form-urlencoded'
87	),
88	CURLINFO_HEADER_OUT => false,
89	CURLOPT_HEADER => false,
90	CURLOPT_RETURNTRANSFER => true,
91	CURLOPT_SSL_VERIFYPEER => true
92	);
93	$this->curl->setoptArray($handle, $options);
94
95	$response = $this->curl->exec($handle);
96	$this->curl->close($handle);
97
98	if ($response !== false) {
99	return $response;
100	}
101
102	return '{"success": false, "error-codes": ["'.ReCaptcha::E_CONNECTION_FAILED.'"]}';
103	}
104	}
105