| 7 |
- |
1 |
<?php
|
|
|
2 |
class MySessionHandler implements SessionHandlerInterface {
|
|
|
3 |
private static $instance = null;
|
|
|
4 |
private static $sessionTab = 0;
|
|
|
5 |
private static $_sess_db = null;
|
|
|
6 |
private static $db_user = null;
|
|
|
7 |
private static $db_pass = null;
|
|
|
8 |
private static $db_name = null;
|
|
|
9 |
private static $db_host = null;
|
|
|
10 |
|
|
|
11 |
public static function getInstance($set_tab = null, $mysqlConfig = null){
|
|
|
12 |
if (is_null(self::$instance)){
|
|
|
13 |
self::$instance = new self();
|
|
|
14 |
}
|
|
|
15 |
|
|
|
16 |
if ($set_tab && !is_null($set_tab) && $set_tab > 0) {
|
|
|
17 |
self::setSessionTab($set_tab);
|
|
|
18 |
} else {
|
|
|
19 |
self::setSessionTab();
|
|
|
20 |
}
|
|
|
21 |
|
|
|
22 |
// store mysqli configuration
|
|
|
23 |
if (!is_null($mysqlConfig)) {
|
|
|
24 |
if (isset($mysqlConfig['db_user']) && !empty($mysqlConfig['db_user'])) {
|
|
|
25 |
self::$db_user = $mysqlConfig['db_user'];
|
|
|
26 |
} else {
|
|
|
27 |
throw new \Exception("MySessionHandler:: - db_user not set in configuration");
|
|
|
28 |
}
|
|
|
29 |
|
|
|
30 |
if (isset($mysqlConfig['db_pass']) && !empty($mysqlConfig['db_pass'])) {
|
|
|
31 |
self::$db_pass = $mysqlConfig['db_pass'];
|
|
|
32 |
} else {
|
|
|
33 |
throw new \Exception("MySessionHandler:: - db_pass not set in configuration");
|
|
|
34 |
}
|
|
|
35 |
|
|
|
36 |
if (isset($mysqlConfig['db_name']) && !empty($mysqlConfig['db_name'])) {
|
|
|
37 |
self::$db_name = $mysqlConfig['db_name'];
|
|
|
38 |
} else {
|
|
|
39 |
throw new \Exception("MySessionHandler:: - db_name not set in configuration");
|
|
|
40 |
}
|
|
|
41 |
|
|
|
42 |
if (isset($mysqlConfig['db_host']) && !empty($mysqlConfig['db_host'])) {
|
|
|
43 |
self::$db_host = $mysqlConfig['db_host'];
|
|
|
44 |
} else {
|
|
|
45 |
throw new \Exception("MySessionHandler:: - db_host not set in configuration");
|
|
|
46 |
}
|
|
|
47 |
}
|
|
|
48 |
|
|
|
49 |
return self::$instance;
|
|
|
50 |
}
|
|
|
51 |
|
| 8 |
- |
52 |
public static function getDBSessionId(){
|
|
|
53 |
return self::$_sess_db;
|
|
|
54 |
}
|
|
|
55 |
|
| 7 |
- |
56 |
public static function getSessionTab(){
|
|
|
57 |
return self::$sessionTab;
|
|
|
58 |
}
|
|
|
59 |
|
|
|
60 |
public static function setSessionTab($tab = 0){
|
| 9 |
- |
61 |
self::$sessionTab = $tab ? (int)$tab : (int)rand(1, pow(10, 9) - 1);
|
| 7 |
- |
62 |
}
|
|
|
63 |
|
|
|
64 |
public function open($savePath, $sessionName)
|
|
|
65 |
{
|
|
|
66 |
if(is_null(self::$sessionTab)){
|
|
|
67 |
self::setSessionTab();
|
|
|
68 |
}
|
|
|
69 |
|
|
|
70 |
self::$_sess_db = mysqli_connect(self::$db_host, self::$db_user, self::$db_pass, self::$db_name);
|
|
|
71 |
|
|
|
72 |
if (mysqli_connect_errno())
|
|
|
73 |
{
|
|
|
74 |
return false;
|
|
|
75 |
}
|
|
|
76 |
|
|
|
77 |
return true;
|
|
|
78 |
}
|
|
|
79 |
|
|
|
80 |
public function close()
|
|
|
81 |
{
|
|
|
82 |
return mysqli_close(self::$_sess_db);
|
|
|
83 |
}
|
|
|
84 |
|
|
|
85 |
public function read($id)
|
|
|
86 |
{
|
|
|
87 |
$id = mysqli_real_escape_string(self::$_sess_db, $id);
|
|
|
88 |
|
|
|
89 |
$sql = "SELECT data
|
|
|
90 |
FROM sessions
|
|
|
91 |
WHERE id = '$id' and tab = '" . $this->getSessionTab() . "'";
|
|
|
92 |
|
|
|
93 |
if ($result = mysqli_query(self::$_sess_db, $sql))
|
|
|
94 |
{
|
|
|
95 |
if (mysqli_num_rows($result))
|
| 14 |
- |
96 |
{
|
| 7 |
- |
97 |
$record = mysqli_fetch_assoc($result);
|
|
|
98 |
$decrypted = Cryptor::Decrypt($record['data']);
|
|
|
99 |
return $decrypted;
|
|
|
100 |
}
|
|
|
101 |
}
|
|
|
102 |
|
|
|
103 |
return '';
|
|
|
104 |
}
|
|
|
105 |
|
|
|
106 |
public function write($id, $data)
|
|
|
107 |
{
|
|
|
108 |
$id = mysqli_real_escape_string(self::$_sess_db, $id);
|
|
|
109 |
$access = mysqli_real_escape_string(self::$_sess_db, time());
|
|
|
110 |
$encrypted = Cryptor::Encrypt($data);
|
|
|
111 |
|
|
|
112 |
$sql = "REPLACE
|
|
|
113 |
INTO sessions
|
|
|
114 |
VALUES ('$id', '" . $this->getSessionTab() . "', '$access', '$encrypted')";
|
|
|
115 |
|
|
|
116 |
return mysqli_query(self::$_sess_db, $sql);
|
|
|
117 |
}
|
|
|
118 |
|
|
|
119 |
public function destroy($id)
|
|
|
120 |
{
|
|
|
121 |
$id = mysqli_real_escape_string(self::$_sess_db, $id);
|
|
|
122 |
|
|
|
123 |
$sql = "DELETE
|
|
|
124 |
FROM sessions
|
|
|
125 |
WHERE id = '$id' and tab = '" . $this->getSessionTab() . "'";
|
|
|
126 |
|
|
|
127 |
return mysqli_query(self::$_sess_db, $sql);
|
|
|
128 |
}
|
|
|
129 |
|
|
|
130 |
public function gc($maxlifetime)
|
|
|
131 |
{
|
|
|
132 |
$old = mysqli_real_escape_string(self::$_sess_db, time() - $maxlifetime);
|
|
|
133 |
|
|
|
134 |
$sql = "DELETE
|
|
|
135 |
FROM sessions
|
|
|
136 |
WHERE access < '$old'";
|
|
|
137 |
|
|
|
138 |
return mysqli_query(self::$_sess_db, $sql);
|
|
|
139 |
}
|
|
|
140 |
}
|
|
|
141 |
|