wesession.class.php
4.51 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
<?php
/**
* [WeEngine System] Copyright (c) 2014 WE7.CC
* WeEngine is NOT a free software, it under the license terms, visited http://www.we7.cc/ for more details.
*/
defined('IN_IA') or exit('Access Denied');
class WeSession implements SessionHandlerInterface {
public static $uniacid;
public static $openid;
public static $expire;
public static function start($uniacid, $openid, $expire = 3600) {
WeSession::$uniacid = $uniacid;
WeSession::$openid = $openid;
WeSession::$expire = $expire;
$cache_setting = $GLOBALS['_W']['config']['setting'];
if (extension_loaded('memcache') && !empty($cache_setting['memcache']['server']) && !empty($cache_setting['memcache']['session'])) {
self::setHandler('memcache');
} elseif (extension_loaded('redis') && !empty($cache_setting['redis']['server']) && !empty($cache_setting['redis']['session'])) {
self::setHandler('redis');
} else {
self::setHandler('mysql');
}
register_shutdown_function('session_write_close');
session_start();
}
public static function setHandler($type = 'mysql') {
$classname = "WeSession{$type}";
if (class_exists($classname)) {
$sess = new $classname;
}
if (version_compare(PHP_VERSION, '5.5') >= 0) {
session_set_save_handler($sess, true);
} else {
session_set_save_handler(
array(&$sess, 'open'),
array(&$sess, 'close'),
array(&$sess, 'read'),
array(&$sess, 'write'),
array(&$sess, 'destroy'),
array(&$sess, 'gc')
);
}
return true;
}
public function open($save_path, $session_name) {
return true;
}
public function close() {
return true;
}
public function read($sessionid) {
return '';
}
public function write($sessionid, $data) {
return true;
}
public function destroy($sessionid) {
return true;
}
public function gc($expire) {
return true;
}
}
class WeSessionMemcache extends WeSession {
protected $session_name;
protected function key($sessionid) {
return $this->session_name . ':' . $sessionid;
}
public function open($save_path, $session_name) {
$this->session_name = $session_name;
if (cache_type() != 'memcache') {
trigger_error('Memcache 扩展不可用或是服务未开启，请将 \$config[\'setting\'][\'memcache\'][\'session\'] 设置为0 ');
return false;
}
return true;
}
public function read($sessionid) {
$row = cache_read($this->key($sessionid));
if (empty($row) || $row['expiretime'] < TIMESTAMP) {
return '';
}
if(is_array($row) && !empty($row['data'])) {
return $row['data'];
}
return '';
}
public function write($sessionid, $data) {
$row = array();
$row['data'] = $data;
$row['uniacid'] = WeSession::$uniacid;
$row['openid'] = WeSession::$openid;
$row['expiretime'] = TIMESTAMP + WeSession::$expire;
return cache_write($this->key($sessionid), $row);
}
public function destroy($sessionid) {
return cache_write($this->key($sessionid), '');
}
}
class WeSessionRedis extends WeSessionMemcache {
public function open($save_path, $session_name) {
$this->session_name = $session_name;
if (cache_type() != 'redis') {
trigger_error('Redis 扩展不可用或是服务未开启，请将 \$config[\'setting\'][\'redis\'][\'session\'] 设置为0 ');
return false;
}
return true;
}
}
class WeSessionMysql extends WeSession {
public function open($save_path, $session_name) {
$tablename = str_replace('`', "'", tablename('core_sessions'));
$status = pdo_fetch("SHOW TABLE STATUS LIKE {$tablename}");
if (strexists($status['Comment'], 'crashed')) {
pdo_run("REPAIR TABLE " . tablename('core_sessions'));
}
return true;
}
public function read($sessionid) {
$sql = 'SELECT * FROM ' . tablename('core_sessions') . ' WHERE `sid`=:sessid AND `expiretime`>:time';
$params = array();
$params[':sessid'] = $sessionid;
$params[':time'] = TIMESTAMP;
$row = pdo_fetch($sql, $params);
if(is_array($row) && !empty($row['data'])) {
return $row['data'];
}
return '';
}
public function write($sessionid, $data) {
$row = array();
$row['sid'] = $sessionid;
$row['uniacid'] = WeSession::$uniacid;
$row['openid'] = WeSession::$openid;
$row['data'] = $data;
$row['expiretime'] = TIMESTAMP + WeSession::$expire;
return pdo_insert('core_sessions', $row, true) >= 1;
}
public function destroy($sessionid) {
$row = array();
$row['sid'] = $sessionid;
return pdo_delete('core_sessions', $row) == 1;
}
public function gc($expire) {
$sql = 'DELETE FROM ' . tablename('core_sessions') . ' WHERE `expiretime`<:expire';
return pdo_query($sql, array(':expire' => TIMESTAMP)) == 1;
}
}