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
|
<?php
/**
* SimplePie
*
* A PHP-Based RSS and Atom Feed Framework.
* Takes the hard work out of managing a complete RSS/Atom solution.
*
* Copyright (c) 2004-2016, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* * Neither the name of the SimplePie Team nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
* AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @package SimplePie
* @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
* @author Ryan Parman
* @author Sam Sneddon
* @author Ryan McCue
* @link http://simplepie.org/ SimplePie
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
*/
/**
* Caches data to the filesystem
*
* @package SimplePie
* @subpackage Caching
*/
class SimplePie_Cache_File implements SimplePie_Cache_Base
{
/**
* Location string
*
* @see SimplePie::$cache_location
* @var string
*/
protected $location;
/**
* Filename
*
* @var string
*/
protected $filename;
/**
* File extension
*
* @var string
*/
protected $extension;
/**
* File path
*
* @var string
*/
protected $name;
/**
* Create a new cache object
*
* @param string $location Location string (from SimplePie::$cache_location)
* @param string $name Unique ID for the cache
* @param string $type Either TYPE_FEED for SimplePie data, or TYPE_IMAGE for image data
*/
public function __construct($location, $name, $type)
{
$this->location = $location;
$this->filename = $name;
$this->extension = $type;
$this->name = "$this->location/$this->filename.$this->extension";
}
/**
* Save data to the cache
*
* @param array|SimplePie $data Data to store in the cache. If passed a SimplePie object, only cache the $data property
* @return bool Successfulness
*/
public function save($data)
{
if (file_exists($this->name) && is_writable($this->name) || file_exists($this->location) && is_writable($this->location))
{
if ($data instanceof SimplePie)
{
$data = $data->data;
}
$data = serialize($data);
return (bool) file_put_contents($this->name, $data);
}
return false;
}
/**
* Retrieve the data saved to the cache
*
* @return array Data for SimplePie::$data
*/
public function load()
{
if (file_exists($this->name) && is_readable($this->name))
{
return unserialize(file_get_contents($this->name));
}
return false;
}
/**
* Retrieve the last modified time for the cache
*
* @return int Timestamp
*/
public function mtime()
{
return @filemtime($this->name);
}
/**
* Set the last modified time to the current time
*
* @return bool Success status
*/
public function touch()
{
return @touch($this->name);
}
/**
* Remove the cache
*
* @return bool Success status
*/
public function unlink()
{
if (file_exists($this->name))
{
return unlink($this->name);
}
return false;
}
}
|
