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
|
<?php
function create_cache_id($group, $params = null){
$cache_id = $group;
if (is_array($params)) {
$cache_id .= '.' . implode('.', $params);
} elseif (is_string($params)) {
$cache_id .= '.' . $params;
}
return $cache_id;
}
function get_cache_file($cache_id, $lifetime = null) {
global $cache_enable, $cache_lifetime, $cache_path;
if (!$cache_enable) {
return false;
}
if (!$lifetime) {
$lifetime = $cache_lifetime;
}
$file = $cache_path . '/' . $cache_id;
if (!@is_readable($file)) {
return false;
}
if ($lifetime == -1 || (filemtime($file) + $lifetime) > time()) {
if (!$fp = @fopen($file, 'rb')) {
return false;
}
$data = @fread($fp, filesize($file));
@fclose($fp);
if (defined('PRINT_CACHE_MESSAGES') && PRINT_CACHE_MESSAGES == 1) {
echo "Cache file '$cache_id' <span style='color:green'>used</span><br>";
}
// Replace session ids
global $site_sess;
$replace = $site_sess->mode == 'cookie' ? '' : '\1\2'.SESSION_NAME.'='.$site_sess->session_id;
$data = preg_replace(
'#([\?|&])+(amp;)?%%%SID%%%#',
$replace,
$data
);
return $data;
}
if (defined('PRINT_CACHE_MESSAGES') && PRINT_CACHE_MESSAGES == 1) {
echo "Cache file '$cache_id' <span style='color:purple'>expired</span><br>";
}
return false;
}
function save_cache_file($cache_id, $data) {
global $cache_enable, $cache_lifetime, $cache_path;
if (!$cache_enable) {
return false;
}
$file = $cache_path . '/' . $cache_id;
if ($fp = @fopen($file, 'wb')) {
// Replace session ids
global $site_sess;
$data = str_replace(
SESSION_NAME.'='.$site_sess->session_id,
'%%%SID%%%',
$data
);
@flock($fp, LOCK_EX);
@fwrite($fp, $data);
@flock($fp, LOCK_UN);
@fclose($fp);
if (defined('PRINT_CACHE_MESSAGES') && PRINT_CACHE_MESSAGES == 1) {
echo "Cache file '$cache_id' <span style='color:red'>stored</span><br>";
}
return true;
}
@fclose($fp);
return false;
}
function delete_cache_file($cache_id) {
global $cache_enable, $cache_lifetime, $cache_path;
if (defined('PRINT_CACHE_MESSAGES') && PRINT_CACHE_MESSAGES == 1) {
echo "Cache file '$cache_id' <span style='color:red'>deleted</span><br>";
}
return @unlink($cache_path . '/' . $cache_id);
}
function delete_cache_group($group) {
global $cache_enable, $cache_lifetime, $cache_path;
$handle = @opendir($cache_path);
while ($file = @readdir($handle)) {
if (is_dir($file) || $file{0} == ".") {
continue;
}
if (strpos($file, $group) === 0) {
unlink($cache_path . '/' . $file);
}
}
if (defined('PRINT_CACHE_MESSAGES') && PRINT_CACHE_MESSAGES == 1) {
echo "Cache group '$group' <span style='color:red'>deleted</span><br>";
}
}
function clear_cache() {
global $cache_enable, $cache_lifetime, $cache_path;
$handle = opendir($cache_path);
while ($file = @readdir($handle)) {
if (is_dir($file) || $file{0} == ".") {
continue;
}
unlink($cache_path . '/' . $file);
}
}
?>
|