|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* Simple Machines Forum (SMF) |
|
5
|
|
|
* |
|
6
|
|
|
* @package SMF |
|
7
|
|
|
* @author Simple Machines https://www.simplemachines.org |
|
8
|
|
|
* @copyright 2020 Simple Machines and individual contributors |
|
9
|
|
|
* @license https://www.simplemachines.org/about/smf/license.php BSD |
|
10
|
|
|
* |
|
11
|
|
|
* @version 2.1 RC3 |
|
12
|
|
|
*/ |
|
13
|
|
|
|
|
14
|
|
|
if (!defined('SMF')) |
|
15
|
|
|
die('Hacking attempt...'); |
|
16
|
|
|
|
|
17
|
|
|
/** |
|
18
|
|
|
* SQLite Cache API class |
|
19
|
|
|
* |
|
20
|
|
|
* @package cacheAPI |
|
21
|
|
|
*/ |
|
22
|
|
|
class sqlite_cache extends cache_api |
|
23
|
|
|
{ |
|
24
|
|
|
/** |
|
25
|
|
|
* @var string The path to the current $cachedir directory. |
|
26
|
|
|
*/ |
|
27
|
|
|
private $cachedir = null; |
|
28
|
|
|
|
|
29
|
|
|
/** |
|
30
|
|
|
* @var SQLite3 |
|
31
|
|
|
*/ |
|
32
|
|
|
private $cacheDB = null; |
|
33
|
|
|
|
|
34
|
|
|
public function __construct() |
|
35
|
|
|
{ |
|
36
|
|
|
parent::__construct(); |
|
37
|
|
|
|
|
38
|
|
|
// Set our default cachedir. |
|
39
|
|
|
$this->setCachedir(); |
|
40
|
|
|
} |
|
41
|
|
|
|
|
42
|
|
|
/** |
|
43
|
|
|
* {@inheritDoc} |
|
44
|
|
|
*/ |
|
45
|
|
|
public function connect() |
|
46
|
|
|
{ |
|
47
|
|
|
$database = $this->cachedir . '/' . 'SQLite3Cache.db3'; |
|
48
|
|
|
$this->cacheDB = new SQLite3($database); |
|
49
|
|
|
$this->cacheDB->busyTimeout(1000); |
|
50
|
|
|
if (filesize($database) == 0) |
|
51
|
|
|
{ |
|
52
|
|
|
$this->cacheDB->exec('CREATE TABLE cache (key text unique, value blob, ttl int);'); |
|
53
|
|
|
$this->cacheDB->exec('CREATE INDEX ttls ON cache(ttl);'); |
|
54
|
|
|
} |
|
55
|
|
|
} |
|
56
|
|
|
|
|
57
|
|
|
/** |
|
58
|
|
|
* {@inheritDoc} |
|
59
|
|
|
*/ |
|
60
|
|
|
public function isSupported($test = false) |
|
61
|
|
|
{ |
|
62
|
|
|
$supported = class_exists("SQLite3") && is_writable($this->cachedir); |
|
63
|
|
|
|
|
64
|
|
|
if ($test) |
|
65
|
|
|
return $supported; |
|
66
|
|
|
|
|
67
|
|
|
return parent::isSupported() && $supported; |
|
68
|
|
|
} |
|
69
|
|
|
|
|
70
|
|
|
/** |
|
71
|
|
|
* {@inheritDoc} |
|
72
|
|
|
*/ |
|
73
|
|
|
public function getData($key, $ttl = null) |
|
74
|
|
|
{ |
|
75
|
|
|
$query = 'SELECT value FROM cache WHERE key = \'' . $this->cacheDB->escapeString($key) . '\' AND ttl >= ' . time() . ' LIMIT 1'; |
|
76
|
|
|
$result = $this->cacheDB->query($query); |
|
77
|
|
|
|
|
78
|
|
|
$value = null; |
|
79
|
|
|
while ($res = $result->fetchArray(SQLITE3_ASSOC)) |
|
80
|
|
|
$value = $res['value']; |
|
81
|
|
|
|
|
82
|
|
|
return !empty($value) ? $value : null; |
|
83
|
|
|
} |
|
84
|
|
|
|
|
85
|
|
|
/** |
|
86
|
|
|
* {@inheritDoc} |
|
87
|
|
|
*/ |
|
88
|
|
|
public function putData($key, $value, $ttl = null) |
|
89
|
|
|
{ |
|
90
|
|
|
$ttl = time() + (int) ($ttl !== null ? $ttl : $this->ttl); |
|
91
|
|
|
if ($value === null) |
|
92
|
|
|
$query = 'DELETE FROM cache WHERE key = \'' . $this->cacheDB->escapeString($key) . '\';'; |
|
93
|
|
|
else |
|
94
|
|
|
$query = 'REPLACE INTO cache VALUES (\'' . $this->cacheDB->escapeString($key) . '\', \'' . $this->cacheDB->escapeString($value) . '\', ' . $ttl . ');'; |
|
95
|
|
|
$result = $this->cacheDB->exec($query); |
|
96
|
|
|
|
|
97
|
|
|
return $result; |
|
98
|
|
|
} |
|
99
|
|
|
|
|
100
|
|
|
/** |
|
101
|
|
|
* {@inheritDoc} |
|
102
|
|
|
*/ |
|
103
|
|
|
public function cleanCache($type = '') |
|
104
|
|
|
{ |
|
105
|
|
|
if ($type == 'expired') |
|
106
|
|
|
$query = 'DELETE FROM cache WHERE ttl >= ' . time() . ';'; |
|
107
|
|
|
else |
|
108
|
|
|
$query = 'DELETE FROM cache;'; |
|
109
|
|
|
|
|
110
|
|
|
$result = $this->cacheDB->exec($query); |
|
111
|
|
|
|
|
112
|
|
|
$query = 'VACUUM;'; |
|
113
|
|
|
$this->cacheDB->exec($query); |
|
114
|
|
|
|
|
115
|
|
|
return $result; |
|
116
|
|
|
} |
|
117
|
|
|
|
|
118
|
|
|
/** |
|
119
|
|
|
* {@inheritDoc} |
|
120
|
|
|
*/ |
|
121
|
|
|
public function cacheSettings(array &$config_vars) |
|
122
|
|
|
{ |
|
123
|
|
|
global $context, $txt; |
|
124
|
|
|
|
|
125
|
|
|
$config_vars[] = $txt['cache_sqlite_settings']; |
|
126
|
|
|
$config_vars[] = array('cachedir_sqlite', $txt['cachedir_sqlite'], 'file', 'text', 36, 'cache_sqlite_cachedir'); |
|
127
|
|
|
|
|
128
|
|
|
if (!isset($context['settings_post_javascript'])) |
|
129
|
|
|
$context['settings_post_javascript'] = ''; |
|
130
|
|
|
|
|
131
|
|
|
$context['settings_post_javascript'] .= ' |
|
132
|
|
|
$("#cache_accelerator").change(function (e) { |
|
133
|
|
|
var cache_type = e.currentTarget.value; |
|
134
|
|
|
$("#cachedir_sqlite").prop("disabled", cache_type != "sqlite"); |
|
135
|
|
|
});'; |
|
136
|
|
|
} |
|
137
|
|
|
|
|
138
|
|
|
/** |
|
139
|
|
|
* Sets the $cachedir or uses the SMF default $cachedir.. |
|
140
|
|
|
* |
|
141
|
|
|
* @access public |
|
142
|
|
|
* |
|
143
|
|
|
* @param string $dir A valid path |
|
144
|
|
|
* |
|
145
|
|
|
* @return boolean If this was successful or not. |
|
146
|
|
|
*/ |
|
147
|
|
|
public function setCachedir($dir = null) |
|
148
|
|
|
{ |
|
149
|
|
|
global $cachedir, $cachedir_sqlite; |
|
150
|
|
|
|
|
151
|
|
|
// If its invalid, use SMF's. |
|
152
|
|
|
if (is_null($dir) || !is_writable($dir)) |
|
153
|
|
|
if (is_null($cachedir_sqlite) || !is_writable($cachedir_sqlite)) |
|
154
|
|
|
$this->cachedir = $cachedir; |
|
155
|
|
|
else |
|
156
|
|
|
$this->cachedir = $cachedir_sqlite; |
|
157
|
|
|
else |
|
158
|
|
|
$this->cachedir = $dir; |
|
159
|
|
|
} |
|
160
|
|
|
|
|
161
|
|
|
/** |
|
162
|
|
|
* {@inheritDoc} |
|
163
|
|
|
*/ |
|
164
|
|
|
public function getVersion() |
|
165
|
|
|
{ |
|
166
|
|
|
$temp = $this->cacheDB->version(); |
|
167
|
|
|
return $temp['versionString']; |
|
168
|
|
|
} |
|
169
|
|
|
|
|
170
|
|
|
/** |
|
171
|
|
|
* {@inheritDoc} |
|
172
|
|
|
*/ |
|
173
|
|
|
public function housekeeping() |
|
174
|
|
|
{ |
|
175
|
|
|
$this->cleanCache('expired'); |
|
176
|
|
|
} |
|
177
|
|
|
} |
|
178
|
|
|
|
|
179
|
|
|
?> |
SimpleMachines /
SMF2.1
