yatra / core / Libraries / wp-session.php

wp-session.php in Yatra – Travel Booking & Tour Operator Software 2.2.10, at core/Libraries/wp-session.php

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1	<?php
2	/**
3	* WordPress session management.
4	*
5	* Standardizes WordPress session data and uses either database transients or
6	* in-memory caching for storing user session information.
7	*
8	* @package WordPress
9	* @subpackage Session
10	* @since 3.7.0
11	*/
12
13	// Exit if accessed directly
14	defined( 'ABSPATH' ) \|\| exit;
15
16	/**
17	* Return the current cache expire setting.
18	*
19	* @return int
20	*/
21	function wp_session_cache_expire() {
22	$wp_session = WP_Session::get_instance();
23
24	return $wp_session->cache_expiration();
25	}
26
27	/**
28	* Alias of wp_session_write_close()
29	*/
30	function wp_session_commit() {
31	wp_session_write_close();
32	}
33
34	/**
35	* Load a JSON-encoded string into the current session.
36	*
37	* @param string $data
38	*/
39	function wp_session_decode( $data ) {
40	$wp_session = WP_Session::get_instance();
41
42	return $wp_session->json_in( $data );
43	}
44
45	/**
46	* Encode the current session's data as a JSON string.
47	*
48	* @return string
49	*/
50	function wp_session_encode() {
51	$wp_session = WP_Session::get_instance();
52
53	return $wp_session->json_out();
54	}
55
56	/**
57	* Regenerate the session ID.
58	*
59	* @param bool $delete_old_session
60	*
61	* @return bool
62	*/
63	function wp_session_regenerate_id( $delete_old_session = false ) {
64	$wp_session = WP_Session::get_instance();
65
66	$wp_session->regenerate_id( $delete_old_session );
67
68	return true;
69	}
70
71	/**
72	* Start new or resume existing session.
73	*
74	* Resumes an existing session based on a value sent by the _wp_session cookie.
75	*
76	* @return bool
77	*/
78	function wp_session_start() {
79	$wp_session = WP_Session::get_instance();
80	do_action( 'wp_session_start' );
81
82	return $wp_session->session_started();
83	}
84	add_action( 'plugins_loaded', 'wp_session_start' );
85
86	/**
87	* Return the current session status.
88	*
89	* @return int
90	*/
91	function wp_session_status() {
92	$wp_session = WP_Session::get_instance();
93
94	if ( $wp_session->session_started() ) {
95	return PHP_SESSION_ACTIVE;
96	}
97
98	return PHP_SESSION_NONE;
99	}
100
101	/**
102	* Unset all session variables.
103	*/
104	function wp_session_unset() {
105	$wp_session = WP_Session::get_instance();
106
107	$wp_session->reset();
108	}
109
110	/**
111	* Write session data and end session
112	*/
113	function wp_session_write_close() {
114	$wp_session = WP_Session::get_instance();
115
116	$wp_session->write_data();
117	do_action( 'wp_session_commit' );
118	}
119	add_action( 'shutdown', 'wp_session_write_close' );
120
121	/**
122	* Clean up expired sessions by removing data and their expiration entries from
123	* the WordPress options table.
124	*
125	* This method should never be called directly and should instead be triggered as part
126	* of a scheduled task or cron job.
127	*/
128	function wp_session_cleanup() {
129	global $wpdb;
130
131	if ( defined( 'WP_SETUP_CONFIG' ) ) {
132	return;
133	}
134
135	if ( ! defined( 'WP_INSTALLING' ) ) {
136	$expiration_keys = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options WHERE option_name LIKE '_wp_session_expires_%'" );
137
138	$now = current_time( 'timestamp' );
139	$expired_sessions = array();
140
141	foreach( $expiration_keys as $expiration ) {
142
143	// If the session has expired
144	if ( $now > intval( $expiration->option_value ) ) {
145
146	// Get the session ID by parsing the option_name
147	$session_id = substr( $expiration->option_name, 20 );
148
149	if( (int) -1 === (int) $session_id \|\| ! preg_match( '/^[a-f0-9]{32}$/', $session_id ) ) {
150	continue;
151	}
152
153	$expired_sessions[] = $expiration->option_name;
154	$expired_sessions[] = esc_sql( "_wp_session_$session_id" );
155	}
156	}
157
158	// Delete all expired sessions in a single query
159	if ( ! empty( $expired_sessions ) ) {
160	$option_names = implode( "','", $expired_sessions );
161	$wpdb->query( "DELETE FROM $wpdb->options WHERE option_name IN ('$option_names')" );
162	}
163	}
164
165	// Allow other plugins to hook in to the garbage collection process.
166	do_action( 'wp_session_cleanup' );
167	}
168	add_action( 'wp_session_garbage_collection', 'wp_session_cleanup' );
169
170	/**
171	* Register the garbage collector as a twice daily event.
172	*/
173	function wp_session_register_garbage_collection() {
174	if ( ! wp_next_scheduled( 'wp_session_garbage_collection' ) ) {
175	wp_schedule_event( current_time( 'timestamp' ), 'twicedaily', 'wp_session_garbage_collection' );
176	}
177	}
178	add_action( 'wp', 'wp_session_register_garbage_collection' );
179