fluentform / vendor / wpfluent / framework / src / WPFluent / Foundation / AsyncRequestTrait.php

AsyncRequestTrait.php in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder 6.2.3, at vendor/wpfluent/framework/src/WPFluent/Foundation/AsyncRequestTrait.php

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1	<?php
2
3	namespace FluentForm\Framework\Foundation;
4
5	trait AsyncRequestTrait
6	{
7	protected $asyncActions = [];
8
9	protected $launchableActions = [];
10
11	public function addAsyncAction($action, $handler)
12	{
13	$this->asyncActions[$action] = $handler;
14	}
15
16	public function doAsyncAction($action, $data = [])
17	{
18	$this->launchableActions[$action] = $data;
19
20	}
21
22	protected function registerAsyncActions()
23	{
24	if ($this->hasAsyncActions()) {
25	$this->registerAdminPostAction(
26	$this->config->get('app.slug')
27	);
28	}
29	}
30
31	protected function hasAsyncActions()
32	{
33	return count($this->asyncActions) > 0;
34	}
35
36	protected function registerAdminPostAction($slug)
37	{
38	add_action("admin_post_wpfluent_async_$slug", [$this, 'callback']);
39	add_action("admin_post_nopriv_wpfluent_async_$slug", [$this, 'callback']);
40
41	if (!has_action('shutdown', [$this, 'launchPostRequest'])) {
42	add_action('shutdown', [$this, 'launchPostRequest']);
43	}
44	}
45
46	public function callback()
47	{
48	add_filter('wp_die_handler', function() { die(); });
49
50	try {
51	$this->verifyNonce();
52
53	foreach ($_POST['actions'] as $action => $data) {
54	try {
55	$handler = $this->parseHookHandler(
56	$this->asyncActions[$action]
57	);
58
59	$handler($data);
60	} catch (\Exception $e) {
61	continue;
62	}
63	}
64	} catch (\Exception $e) {
65	return;
66	}
67	}
68
69	public function launchPostRequest()
70	{
71	if (!$this->hasLaunchableActions()) {
72	return;
73	}
74
75	$args = [
76	'timeout' => 0.01,
77	'blocking' => false,
78	'sslverify' => apply_filters('https_local_ssl_verify', true),
79	'body' => $this->getData(),
80	'headers' => [
81	'cookie' => $this->getCookie(),
82	],
83	];
84
85	wp_remote_post(admin_url('admin-post.php'), $args);
86	}
87
88	protected function getData()
89	{
90	return [
91	'_nonce' => $this->createNonce(),
92	'action' => $this->getMainAction(),
93	'actions' => $this->launchableActions,
94	];
95	}
96
97	protected function getCookie()
98	{
99	$cookies = [];
100
101	foreach ($_COOKIE as $name => $value) {
102	$cookies[] = "$name=" . urlencode(is_array($value) ? serialize($value) : $value);
103	}
104
105	return implode('; ', $cookies);
106	}
107
108	protected function hasLaunchableActions()
109	{
110	return count($this->launchableActions) > 0;
111	}
112
113	protected function createNonce()
114	{
115	$i = wp_nonce_tick();
116
117	$action = $this->getMainAction();
118
119	return wp_hash($i . $action, 'nonce');
120	}
121
122	protected function verifyNonce()
123	{
124	if (!isset($_POST['_nonce'])) {
125	throw new \Exception('Invalid Request.');
126	}
127
128	$nonce = $_POST['_nonce'];
129
130	$i = wp_nonce_tick();
131
132	$action = $this->getMainAction();
133
134	// Nonce generated 0-12 hours ago
135	if (wp_hash($i . $action, 'nonce') == $nonce) {
136	return 1;
137	}
138
139	// Nonce generated 12-24 hours ago
140	if (wp_hash(($i - 1) . $action , 'nonce') == $nonce) {
141	return 2;
142	}
143
144	// Invalid nonce
145	return false;
146	}
147
148	protected function getMainAction() {
149	$action = $this->config->get('app.slug');
150
151	$action = "wpfluent_async_$action";
152
153	return $action;
154	}
155	}
156