learnpress / inc / background-process / abstract-lp-async-request.php

abstract-lp-async-request.php in LearnPress – WordPress LMS Plugin for Create and Sell Online Courses 4.1.7.2, at inc/background-process/abstract-lp-async-request.php

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1	<?php
2
3	/**
4	* Abstract LP_Async_Request class.
5	*
6	* @abstract
7	*/
8	abstract class LP_Async_Request {
9	/**
10	* Prefix
11	* @var string
12	*/
13	protected $prefix = 'lp';
14
15	/**
16	* Action
17	* @var string
18	*/
19	protected $action = 'async_request';
20
21	/**
22	* Identifier
23	*
24	* @var string
25	*/
26	protected $identifier;
27
28	/**
29	* Data
30	*
31	* (default value: array())
32	*
33	* @var array
34	*/
35	protected $data = array();
36
37	/**
38	* Initiate new async request
39	*/
40	public function __construct() {
41	$this->identifier = $this->prefix . '_' . $this->action;
42
43	add_action( 'wp_ajax_' . $this->identifier, array( $this, 'maybe_handle' ) );
44	add_action( 'wp_ajax_nopriv_' . $this->identifier, array( $this, 'maybe_handle' ) );
45	}
46
47	/**
48	* Set data used during the request
49	*
50	* @param array $data Data.
51	*
52	* @return $this
53	*/
54	public function data( $data ) {
55	$this->data = $data;
56
57	return $this;
58	}
59
60	/**
61	* Dispatch the async request
62	*
63	* @return array\|WP_Error
64	*/
65	public function dispatch() {
66	$url = esc_url_raw( add_query_arg( $this->get_query_args(), $this->get_query_url() ) );
67	$args = $this->get_post_args();
68
69	return wp_remote_post( $url, $args );
70	}
71
72	/**
73	* Get query args
74	*
75	* @return array
76	*/
77	protected function get_query_args() {
78	if ( property_exists( $this, 'query_args' ) ) {
79	return $this->query_args;
80	}
81
82	$args = array(
83	'action' => $this->identifier,
84	'nonce' => wp_create_nonce( $this->identifier ),
85	);
86
87	/**
88	* Filters the post arguments used during an async request.
89	*
90	* @param array $url
91	*/
92	return apply_filters( $this->identifier . '_query_args', $args );
93	}
94
95	/**
96	* Get query URL
97	*
98	* @return string
99	*/
100	protected function get_query_url() {
101	if ( property_exists( $this, 'query_url' ) ) {
102	return $this->query_url;
103	}
104
105	$url = admin_url( 'admin-ajax.php' );
106
107	/**
108	* Filters the post arguments used during an async request.
109	*
110	* @param string $url
111	*/
112	return apply_filters( $this->identifier . '_query_url', $url );
113	}
114
115	/**
116	* Get post args
117	*
118	* @return array
119	*/
120	protected function get_post_args() {
121	if ( property_exists( $this, 'post_args' ) ) {
122	return $this->post_args;
123	}
124
125	$args = array(
126	'timeout' => 0.01,
127	'blocking' => false,
128	'body' => $this->data,
129	'cookies' => $_COOKIE,
130	'sslverify' => is_ssl(),
131	);
132
133	/**
134	* Filters the post arguments used during an async request.
135	*
136	* @param array $args
137	*/
138	return apply_filters( $this->identifier . '_post_args', $args );
139	}
140
141	/**
142	* Maybe handle
143	*
144	* Check for correct nonce and pass to handler.
145	*/
146	public function maybe_handle() {
147	// Don't lock up other requests while processing
148	session_write_close();
149
150	/**
151	* set params $_POST['lp_no_check_referer'] = 1
152	* for case: send request when user not login, but get request when user logged
153	* @editor tungnx
154	* @modify 4.1.4
155	*/
156	if ( ! isset( $_POST['lp_no_check_referer'] ) ) {
157	check_ajax_referer( $this->identifier, 'nonce' );
158	}
159
160	$this->handle();
161
162	wp_die();
163	}
164
165	/**
166	* Handle
167	*
168	* Override this method to perform any actions required
169	* during the async request.
170	*/
171	abstract protected function handle();
172
173	}
174