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
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
<?php
/**
* Smarty Internal Plugin CacheResource File
*
* @package Smarty
* @subpackage Cacher
* @author Uwe Tews
* @author Rodney Rehm
*/
/**
* This class does contain all necessary methods for the HTML cache on file system
* Implements the file system as resource for the HTML cache Version ussing nocache inserts.
*
* @package Smarty
* @subpackage Cacher
*/
class Smarty_Internal_CacheResource_File extends Smarty_CacheResource
{
/**
* populate Cached Object with meta data from Resource
*
* @param Smarty_Template_Cached $cached cached object
* @param Smarty_Internal_Template $_template template object
*
* @return void
*/
public function populate(Smarty_Template_Cached $cached, Smarty_Internal_Template $_template)
{
$source = &$_template->source;
$smarty = &$_template->smarty;
$_compile_dir_sep = $smarty->use_sub_dirs ? DS : '^';
$_filepath = sha1($source->uid . $smarty->_joined_template_dir);
$cached->filepath = $smarty->getCacheDir();
if (isset($_template->cache_id)) {
$cached->filepath .= preg_replace(array('![^\w|]+!', '![|]+!'), array('_', $_compile_dir_sep),
$_template->cache_id) . $_compile_dir_sep;
}
if (isset($_template->compile_id)) {
$cached->filepath .= preg_replace('![^\w]+!', '_', $_template->compile_id) . $_compile_dir_sep;
}
// if use_sub_dirs, break file into directories
if ($smarty->use_sub_dirs) {
$cached->filepath .= $_filepath[ 0 ] . $_filepath[ 1 ] . DS . $_filepath[ 2 ] . $_filepath[ 3 ] . DS .
$_filepath[ 4 ] . $_filepath[ 5 ] . DS;
}
$cached->filepath .= $_filepath;
$basename = $source->handler->getBasename($source);
if (!empty($basename)) {
$cached->filepath .= '.' . $basename;
}
if ($smarty->cache_locking) {
$cached->lock_id = $cached->filepath . '.lock';
}
$cached->filepath .= '.php';
$cached->timestamp = $cached->exists = is_file($cached->filepath);
if ($cached->exists) {
$cached->timestamp = filemtime($cached->filepath);
}
}
/**
* populate Cached Object with timestamp and exists from Resource
*
* @param Smarty_Template_Cached $cached cached object
*
* @return void
*/
public function populateTimestamp(Smarty_Template_Cached $cached)
{
$cached->timestamp = $cached->exists = is_file($cached->filepath);
if ($cached->exists) {
$cached->timestamp = filemtime($cached->filepath);
}
}
/**
* Read the cached template and process its header
*
* @param \Smarty_Internal_Template $_smarty_tpl do not change variable name, is used by compiled template
* @param Smarty_Template_Cached $cached cached object
* @param bool $update flag if called because cache update
*
* @return boolean true or false if the cached content does not exist
*/
public function process(Smarty_Internal_Template $_smarty_tpl, Smarty_Template_Cached $cached = null,
$update = false)
{
$_smarty_tpl->cached->valid = false;
if ($update && defined('HHVM_VERSION')) {
eval("?>" . file_get_contents($_smarty_tpl->cached->filepath));
return true;
} else {
return @include $_smarty_tpl->cached->filepath;
}
}
/**
* Write the rendered template output to cache
*
* @param Smarty_Internal_Template $_template template object
* @param string $content content to cache
*
* @return boolean success
*/
public function writeCachedContent(Smarty_Internal_Template $_template, $content)
{
if ($_template->smarty->ext->_writeFile->writeFile($_template->cached->filepath, $content,
$_template->smarty) === true
) {
if (function_exists('opcache_invalidate') && strlen(ini_get("opcache.restrict_api")) < 1) {
opcache_invalidate($_template->cached->filepath, true);
} elseif (function_exists('apc_compile_file')) {
apc_compile_file($_template->cached->filepath);
}
$cached = $_template->cached;
$cached->timestamp = $cached->exists = is_file($cached->filepath);
if ($cached->exists) {
$cached->timestamp = filemtime($cached->filepath);
return true;
}
}
return false;
}
/**
* Read cached template from cache
*
* @param Smarty_Internal_Template $_template template object
*
* @return string content
*/
public function readCachedContent(Smarty_Internal_Template $_template)
{
if (is_file($_template->cached->filepath)) {
return file_get_contents($_template->cached->filepath);
}
return false;
}
/**
* Empty cache
*
* @param Smarty $smarty
* @param integer $exp_time expiration time (number of seconds, not timestamp)
*
* @return integer number of cache files deleted
*/
public function clearAll(Smarty $smarty, $exp_time = null)
{
return Smarty_Internal_Extension_Clear::clear($smarty, null, null, null, $exp_time);
}
/**
* Empty cache for a specific template
*
* @param Smarty $smarty
* @param string $resource_name template name
* @param string $cache_id cache id
* @param string $compile_id compile id
* @param integer $exp_time expiration time (number of seconds, not timestamp)
*
* @return integer number of cache files deleted
*/
public function clear(Smarty $smarty, $resource_name, $cache_id, $compile_id, $exp_time)
{
return Smarty_Internal_Extension_Clear::clear($smarty, $resource_name, $cache_id, $compile_id, $exp_time);
}
/**
* Check is cache is locked for this template
*
* @param Smarty $smarty Smarty object
* @param Smarty_Template_Cached $cached cached object
*
* @return boolean true or false if cache is locked
*/
public function hasLock(Smarty $smarty, Smarty_Template_Cached $cached)
{
if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
clearstatcache(true, $cached->lock_id);
} else {
clearstatcache();
}
if (is_file($cached->lock_id)) {
$t = filemtime($cached->lock_id);
return $t && (time() - $t < $smarty->locking_timeout);
} else {
return false;
}
}
/**
* Lock cache for this template
*
* @param Smarty $smarty Smarty object
* @param Smarty_Template_Cached $cached cached object
*
* @return bool|void
*/
public function acquireLock(Smarty $smarty, Smarty_Template_Cached $cached)
{
$cached->is_locked = true;
touch($cached->lock_id);
}
/**
* Unlock cache for this template
*
* @param Smarty $smarty Smarty object
* @param Smarty_Template_Cached $cached cached object
*
* @return bool|void
*/
public function releaseLock(Smarty $smarty, Smarty_Template_Cached $cached)
{
$cached->is_locked = false;
@unlink($cached->lock_id);
}
}
|
