fluentform / app / Modules / Payments / PaymentMethods / Stripe / API / ApiRequest.php

ApiRequest.php in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder 6.2.15, at app/Modules/Payments/PaymentMethods/Stripe/API/ApiRequest.php

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1	<?php
2
3	namespace FluentForm\App\Modules\Payments\PaymentMethods\Stripe\API;
4
5	if (!defined('ABSPATH')) {
6	exit; // Exit if accessed directly.
7	}
8
9	use FluentForm\Framework\Helpers\ArrayHelper;
10
11	if (!defined('ABSPATH')) {
12	exit;
13	}
14
15	/**
16	* WC_Stripe_API class.
17	*
18	* Communicates with Stripe API.
19	*/
20	class ApiRequest
21	{
22	/**
23	* Stripe API Endpoint
24	*/
25	private static $ENDPOINT = 'https://api.stripe.com/v1/';
26	const STRIPE_API_VERSION = '2020-08-27';
27	/**
28	* Secret API Key.
29	* @var string
30	*/
31	private static $secret_key = '';
32
33	/**
34	* Set secret API Key.
35	* @param string $secret_key
36	*/
37	public static function set_secret_key($secret_key)
38	{
39	self::$secret_key = $secret_key;
40	}
41
42	/**
43	* Set secret API Key.
44	* @param string $secret_key
45	*/
46	public static function set_end_point($endpont)
47	{
48	self::$ENDPOINT = $endpont;
49	}
50
51	/**
52	* Get secret key.
53	* @return string
54	*/
55	public static function get_secret_key()
56	{
57	return self::$secret_key;
58	}
59
60	/**
61	* Generates the user agent we use to pass to API request so
62	* Stripe can identify our application.
63	*
64	* @since 4.0.0
65	* @version 4.0.0
66	*/
67	public static function get_user_agent()
68	{
69	$app_info = array(
70	'name' => 'Fluent Forms',
71	'version' => FLUENTFORM_VERSION,
72	'url' => site_url(),
73	'partner_id' => 'pp_partner_FN62GfRLM2Kx5d'
74	);
75	return array(
76	'lang' => 'php',
77	'lang_version' => phpversion(),
78	'publisher' => 'wpmanageninja',
79	'uname' => function_exists('php_uname') ? php_uname() : PHP_OS,
80	'application' => $app_info,
81	);
82	}
83
84	/**
85	* Generates the headers to pass to API request.
86	*
87	* @since 4.0.0
88	* @version 4.0.0
89	*/
90	public static function get_headers()
91	{
92	$user_agent = self::get_user_agent();
93	$app_info = $user_agent['application'];
94	$headers = [
95	'Authorization' => 'Basic ' . base64_encode(self::get_secret_key() . ':'),
96	'Stripe-Version' => self::STRIPE_API_VERSION,
97	'User-Agent' => $app_info['name'] . '/' . $app_info['version'] . ' (' . $app_info['url'] . ')',
98	'X-Stripe-Client-User-Agent' => json_encode($user_agent),
99	];
100
101	$headers = apply_filters_deprecated(
102	'fluentform_stripe_request_headers',
103	[
104	$headers
105	],
106	FLUENTFORM_FRAMEWORK_UPGRADE,
107	'fluentform/stripe_request_headers',
108	'Use fluentform/stripe_request_headers instead of fluentform_stripe_request_headers.'
109	);
110	return apply_filters('fluentform/stripe_request_headers', $headers);
111	}
112
113	/**
114	* Send the request to Stripe's API
115	*
116	* @param array $request
117	* @param string $api
118	* @param string $method
119	* @return object\|\WP_Error
120	* @since 3.1.0
121	* @version 4.0.6
122	*/
123	public static function request($request, $api = 'charges', $method = 'POST')
124	{
125	$headers = self::get_headers();
126	if ('POST' === $method && in_array($api, ['charges', 'payment_intents', 'checkout/sessions'], true)) {
127	$customer = !empty($request['customer']) ? $request['customer'] : '';
128	$source = !empty($request['source']) ? $request['source'] : $customer;
129	$transactionId = ArrayHelper::get($request, 'metadata.transaction_id');
130	if (!$transactionId) {
131	$transactionId = ArrayHelper::get($request, 'payment_intent_data.metadata.transaction_id');
132	}
133	$key = $transactionId
134	? 'fluentform-' . $transactionId . '-' . $api
135	: ArrayHelper::get($request, 'metadata.fluentform_tid') . '-' . $source . '-' . $api;
136	$key = apply_filters_deprecated(
137	'fluentform_stripe_idempotency_key',
138	[
139	$key,
140	$request
141	],
142	FLUENTFORM_FRAMEWORK_UPGRADE,
143	'fluentform/stripe_idempotency_key',
144	'Use fluentform/stripe_idempotency_key instead of fluentform_stripe_idempotency_key.'
145	);
146	$idempotency_key = apply_filters('fluentform/stripe_idempotency_key', $key, $request);
147	$headers['Idempotency-Key'] = $idempotency_key;
148	}
149
150	$request = apply_filters_deprecated(
151	'fluentform_stripe_request_body',
152	[
153	$request,
154	$api
155	],
156	FLUENTFORM_FRAMEWORK_UPGRADE,
157	'fluentform/stripe_request_body',
158	'Use fluentform/stripe_request_body instead of fluentform_stripe_request_body.'
159	);
160
161	$requestArgs = [
162	'method' => $method,
163	'headers' => $headers,
164	'body' => apply_filters('fluentform/stripe_request_body', $request, $api),
165	'timeout' => 50,
166	];
167	$response = wp_safe_remote_post(self::$ENDPOINT . $api, $requestArgs);
168
169	// Stripe replays the original result for this identical idempotent request.
170	if (
171	'POST' === $method &&
172	'payment_intents' === $api &&
173	(is_wp_error($response) \|\| empty($response['body']))
174	) {
175	$response = wp_safe_remote_post(self::$ENDPOINT . $api, $requestArgs);
176	}
177
178	if (is_wp_error($response) \|\| empty($response['body'])) {
179	return new \WP_Error('stripe_error', __('There was a problem connecting to the Stripe API endpoint.', 'fluentform'));
180	}
181
182	$body = json_decode(wp_remote_retrieve_body($response));
183	// check if it's a stripe error or not
184	$responseCode = wp_remote_retrieve_response_code($response);
185
186	if($responseCode > 299) {
187	$code = __('general_error', 'fluentform');
188	if(!empty($body->error->code)) {
189	$code = $body->error->code;
190	}
191	$message = __('Stripe General Error', 'fluentform');
192	if(!empty($body->error->message)) {
193	$message = $body->error->message;
194	}
195
196	return new \WP_Error($code, $message, $body);
197	}
198
199	return $body;
200	}
201
202	/**
203	* Retrieve API endpoint.
204	*
205	* @param string $api
206	* @return mixed\|\WP_Error\|null
207	* @since 4.0.0
208	* @version 4.0.0
209	*/
210	public static function retrieve($api)
211	{
212	$response = wp_safe_remote_get(
213	self::$ENDPOINT . $api,
214	array(
215	'method' => 'GET',
216	'headers' => self::get_headers(),
217	'timeout' => 70,
218	)
219	);
220	if (is_wp_error($response) \|\| empty($response['body'])) {
221	return new \WP_Error('stripe_error', __('There was a problem connecting to the Stripe API endpoint.', 'fluentform'));
222	}
223	return json_decode($response['body']);
224	}
225	}
226