sessions_helper.php — Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress 5.2.0

latepoint / lib / helpers / sessions_helper.php

latepoint / lib / helpers Last commit date

sessions_helper.php

98 lines

1	<?php
2
3	class OsSessionsHelper {
4
5	private static $logged_in_customer_id = false;
6
7	public static function setcookie( $name, $value, $expire = 0, $secure = false, $httponly = false ) {
8	if ( ! headers_sent() ) {
9	setcookie( $name, $value, $expire, COOKIEPATH ? COOKIEPATH : '/', COOKIE_DOMAIN, $secure, $httponly );
10	} elseif ( class_exists('Constants') && Constants::is_true( 'WP_DEBUG' ) ) {
11	headers_sent( $file, $line );
12	trigger_error( "{$name} cookie cannot be set - headers already sent by {$file} on line {$line}", E_USER_NOTICE ); // @codingStandardsIgnoreLine
13	}
14	}
15
16	public static function get_customer_session_cookie(){
17	if(isset($_COOKIE[LATEPOINT_CUSTOMER_LOGGED_IN_COOKIE])){
18	return sanitize_text_field( wp_unslash($_COOKIE[LATEPOINT_CUSTOMER_LOGGED_IN_COOKIE]));
19	}else{
20	return false;
21	}
22	}
23
24	public static function get_customer_token($customer_id){
25	return 'latepoint';
26	}
27
28	public static function set_customer_session_cookie( $session, $expiration, $token ) {
29	$to_hash = $session->id . '\|' . $session->hash . '\|' . $expiration . '\|' . $token;
30	// If ext/hash is not present, compat.php's hash_hmac() does not support sha256.
31	$algo = function_exists( 'hash' ) ? 'sha256' : 'sha1';
32	$cookie_hash = hash_hmac( $algo, $to_hash, wp_hash( $to_hash ) );
33	$cookie_value = $session->id . '\|\|' . $expiration . '\|\|' . $cookie_hash;
34
35	if ( ! isset( $_COOKIE[ LATEPOINT_CUSTOMER_LOGGED_IN_COOKIE ] ) \|\| $_COOKIE[ LATEPOINT_CUSTOMER_LOGGED_IN_COOKIE ] !== $cookie_value ) {
36	self::setcookie( LATEPOINT_CUSTOMER_LOGGED_IN_COOKIE, $cookie_value);
37	}
38	}
39
40	public static function get_customer_id_from_session(){
41	if(self::$logged_in_customer_id) return self::$logged_in_customer_id;
42	$cookie = self::get_customer_session_cookie();
43	if(!$cookie) return false;
44	list($session_id, $expiration, $cookie_hash) = explode('\|\|', $cookie);
45	if(!isset($session_id) \|\| !is_numeric($session_id) \|\| !isset($expiration) \|\| !isset($cookie_hash)) return false;
46	$session = new OsSessionModel($session_id);
47	if(!$session) return false;
48
49	$token = self::get_customer_token($session->session_key);
50
51	$to_hash = $session->id . '\|' . $session->hash . '\|' . $expiration . '\|' . $token;
52
53	$algo = function_exists( 'hash' ) ? 'sha256' : 'sha1';
54	$control_hash = hash_hmac( $algo, $to_hash, wp_hash( $to_hash ) );
55	// check if the cookie was altered by malicious user
56	if($control_hash != $cookie_hash){
57	OsAuthHelper::logout_customer();
58	self::destroy_customer_session_cookie();
59	return false;
60	}else{
61	self::$logged_in_customer_id = $session->session_key;
62	return self::$logged_in_customer_id;
63	}
64	}
65
66	public static function start_or_use_session_for_customer($customer_id){
67	// find existing session for the customer
68	$session_model = new OsSessionModel();
69	$session = $session_model->where(['session_key' => $customer_id])->set_limit(1)->get_results_as_models();
70	$token = self::get_customer_token($customer_id);
71	if($session){
72	// expired session, renew
73	if($session->expiration < time()){
74	$session->expiration = time() + 2 * DAY_IN_SECONDS;
75	$session->save();
76	}
77	}else{
78	$session = new OsSessionModel();
79	$session->session_key = $customer_id;
80	$session->expiration = time() + 2 * DAY_IN_SECONDS;
81	$session->session_value = maybe_serialize([]);
82	$session->hash = wp_generate_password(20, false, false);
83	$session->save();
84	}
85	self::set_customer_session_cookie($session, $session->expiration, $token);
86	self::$logged_in_customer_id = $customer_id;
87	}
88
89	public static function destroy_customer_session_cookie() {
90	self::$logged_in_customer_id = false;
91	if (isset($_COOKIE[LATEPOINT_CUSTOMER_LOGGED_IN_COOKIE])) {
92	unset($_COOKIE[LATEPOINT_CUSTOMER_LOGGED_IN_COOKIE]);
93	setcookie(LATEPOINT_CUSTOMER_LOGGED_IN_COOKIE, '', time() - 3600, COOKIEPATH ? COOKIEPATH : '/', COOKIE_DOMAIN);
94	}
95	}
96
97
98	}