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
|
<?php
/**
* Class Minify_Cache_File
* @package Minify
*/
class Minify_Cache_File {
public function __construct($path = '', $fileLocking = false)
{
if (! $path) {
require_once 'Solar/Dir.php';
$path = rtrim(Solar_Dir::tmp(), DIRECTORY_SEPARATOR);
}
$this->_locking = $fileLocking;
$this->_path = $path;
}
/**
* Write data to cache.
*
* @param string $id cache id (e.g. a filename)
*
* @param string $data
*
* @return bool success
*/
public function store($id, $data)
{
$flag = $this->_locking
? LOCK_EX
: null;
if (is_file($this->_path . '/' . $id)) {
@unlink($this->_path . '/' . $id);
}
if (! @file_put_contents($this->_path . '/' . $id, $data, $flag)) {
return false;
}
// write control
if ($data !== $this->fetch($id)) {
@unlink($file);
return false;
}
return true;
}
/**
* Get the size of a cache entry
*
* @param string $id cache id (e.g. a filename)
*
* @return int size in bytes
*/
public function getSize($id)
{
return filesize($this->_path . '/' . $id);
}
/**
* Does a valid cache entry exist?
*
* @param string $id cache id (e.g. a filename)
*
* @param int $srcMtime mtime of the original source file(s)
*
* @return bool exists
*/
public function isValid($id, $srcMtime)
{
$file = $this->_path . '/' . $id;
return (is_file($file) && (filemtime($file) >= $srcMtime));
}
/**
* Send the cached content to output
*
* @param string $id cache id (e.g. a filename)
*/
public function display($id)
{
if ($this->_locking) {
$fp = fopen($this->_path . '/' . $id, 'rb');
flock($fp, LOCK_SH);
fpassthru($fp);
flock($fp, LOCK_UN);
fclose($fp);
} else {
readfile($this->_path . '/' . $id);
}
}
/**
* Fetch the cached content
*
* @param string $id cache id (e.g. a filename)
*
* @return string
*/
public function fetch($id)
{
if ($this->_locking) {
$fp = fopen($this->_path . '/' . $id, 'rb');
flock($fp, LOCK_SH);
$ret = stream_get_contents($fp);
flock($fp, LOCK_UN);
fclose($fp);
return $ret;
} else {
return file_get_contents($this->_path . '/' . $id);
}
}
/**
* Fetch the cache path used
*
* @return string
*/
public function getPath()
{
return $this->_path;
}
private $_path = null;
private $_locking = null;
}
|
