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1 | <?php |
2 | /** | |
3 | * SimplePie | |
4 | * | |
5 | * A PHP-Based RSS and Atom Feed Framework. | |
6 | * Takes the hard work out of managing a complete RSS/Atom solution. | |
7 | * | |
8 | * Copyright (c) 2004-2009, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors | |
9 | * All rights reserved. | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without modification, are | |
12 | * permitted provided that the following conditions are met: | |
13 | * | |
14 | * * Redistributions of source code must retain the above copyright notice, this list of | |
15 | * conditions and the following disclaimer. | |
16 | * | |
17 | * * Redistributions in binary form must reproduce the above copyright notice, this list | |
18 | * of conditions and the following disclaimer in the documentation and/or other materials | |
19 | * provided with the distribution. | |
20 | * | |
21 | * * Neither the name of the SimplePie Team nor the names of its contributors may be used | |
22 | * to endorse or promote products derived from this software without specific prior | |
23 | * written permission. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS | |
26 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY | |
27 | * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS | |
28 | * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
29 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
30 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
31 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
32 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
33 | * POSSIBILITY OF SUCH DAMAGE. | |
34 | * | |
35 | * @package SimplePie | |
36 | * @version 1.3-dev | |
37 | * @copyright 2004-2010 Ryan Parman, Geoffrey Sneddon, Ryan McCue | |
38 | * @author Ryan Parman | |
39 | * @author Geoffrey Sneddon | |
40 | * @author Ryan McCue | |
41 | * @link http://simplepie.org/ SimplePie | |
42 | * @license http://www.opensource.org/licenses/bsd-license.php BSD License | |
43 | * @todo phpDoc comments | |
44 | */ | |
45 | ||
46 | ||
47 | class SimplePie_Cache_File implements SimplePie_Cache_Base | |
48 | { | |
49 | protected $location; | |
50 | protected $filename; | |
51 | protected $extension; | |
52 | protected $name; | |
53 | ||
54 | public function __construct($location, $filename, $extension) | |
55 | { | |
56 | $this->location = $location; | |
57 | $this->filename = $filename; | |
58 | $this->extension = $extension; | |
59 | $this->name = "$this->location/$this->filename.$this->extension"; | |
60 | } | |
61 | ||
62 | public function save($data) | |
63 | { | |
64 | if (file_exists($this->name) && is_writeable($this->name) || file_exists($this->location) && is_writeable($this->location)) | |
65 | { | |
66 | if (is_a($data, 'SimplePie')) | |
67 | { | |
68 | $data = $data->data; | |
69 | } | |
70 | ||
71 | $data = serialize($data); | |
72 | return (bool) file_put_contents($this->name, $data); | |
73 | } | |
74 | return false; | |
75 | } | |
76 | ||
77 | public function load() | |
78 | { | |
79 | if (file_exists($this->name) && is_readable($this->name)) | |
80 | { | |
81 | return unserialize(file_get_contents($this->name)); | |
82 | } | |
83 | return false; | |
84 | } | |
85 | ||
86 | public function mtime() | |
87 | { | |
88 | if (file_exists($this->name)) | |
89 | { | |
90 | return filemtime($this->name); | |
91 | } | |
92 | return false; | |
93 | } | |
94 | ||
95 | public function touch() | |
96 | { | |
97 | if (file_exists($this->name)) | |
98 | { | |
99 | return touch($this->name); | |
100 | } | |
101 | return false; | |
102 | } | |
103 | ||
104 | public function unlink() | |
105 | { | |
106 | if (file_exists($this->name)) | |
107 | { | |
108 | return unlink($this->name); | |
109 | } | |
110 | return false; | |
111 | } | |
112 | } |