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7f254ad8 AE |
1 | <?php |
2 | ||
3 | /** | |
4 | * PHPIDS | |
5 | * | |
6 | * Requirements: PHP5, SimpleXML | |
7 | * | |
8 | * Copyright (c) 2008 PHPIDS group (https://phpids.org) | |
9 | * | |
10 | * PHPIDS is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU Lesser General Public License as published by | |
12 | * the Free Software Foundation, version 3 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * PHPIDS is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU Lesser General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU Lesser General Public License | |
21 | * along with PHPIDS. If not, see <http://www.gnu.org/licenses/>. | |
22 | * | |
23 | * PHP version 5.1.6+ | |
24 | * | |
25 | * @category Security | |
26 | * @package PHPIDS | |
27 | * @author Mario Heiderich <mario.heiderich@gmail.com> | |
28 | * @author Christian Matthies <ch0012@gmail.com> | |
29 | * @author Lars Strojny <lars@strojny.net> | |
30 | * @license http://www.gnu.org/licenses/lgpl.html LGPL | |
31 | * @link http://php-ids.org/ | |
32 | */ | |
33 | ||
34 | require_once 'IDS/Caching/Interface.php'; | |
35 | ||
36 | /** | |
37 | * File caching wrapper | |
38 | * | |
39 | * This class inhabits functionality to get and set cache via session. | |
40 | * | |
41 | * @category Security | |
42 | * @package PHPIDS | |
43 | * @author Christian Matthies <ch0012@gmail.com> | |
44 | * @author Mario Heiderich <mario.heiderich@gmail.com> | |
45 | * @author Lars Strojny <lars@strojny.net> | |
46 | * @copyright 2007-2009 The PHPIDS Group | |
47 | * @license http://www.gnu.org/licenses/lgpl.html LGPL | |
48 | * @version Release: $Id:Session.php 517 2007-09-15 15:04:13Z mario $ | |
49 | * @link http://php-ids.org/ | |
50 | * @since Version 0.4 | |
51 | */ | |
52 | class IDS_Caching_Session implements IDS_Caching_Interface | |
53 | { | |
54 | ||
55 | /** | |
56 | * Caching type | |
57 | * | |
58 | * @var string | |
59 | */ | |
60 | private $type = null; | |
61 | ||
62 | /** | |
63 | * Cache configuration | |
64 | * | |
65 | * @var array | |
66 | */ | |
67 | private $config = null; | |
68 | ||
69 | /** | |
70 | * Holds an instance of this class | |
71 | * | |
72 | * @var object | |
73 | */ | |
74 | private static $cachingInstance = null; | |
75 | ||
76 | /** | |
77 | * Constructor | |
78 | * | |
79 | * @param string $type caching type | |
80 | * @param object $init the IDS_Init object | |
81 | * | |
82 | * @return void | |
83 | */ | |
84 | public function __construct($type, $init) | |
85 | { | |
86 | $this->type = $type; | |
87 | $this->config = $init->config['Caching']; | |
88 | } | |
89 | ||
90 | /** | |
91 | * Returns an instance of this class | |
92 | * | |
93 | * @param string $type caching type | |
94 | * @param object $init the IDS_Init object | |
95 | * | |
96 | * @return object $this | |
97 | */ | |
98 | public static function getInstance($type, $init) | |
99 | { | |
100 | ||
101 | if (!self::$cachingInstance) { | |
102 | self::$cachingInstance = new IDS_Caching_Session($type, $init); | |
103 | } | |
104 | ||
105 | return self::$cachingInstance; | |
106 | } | |
107 | ||
108 | /** | |
109 | * Writes cache data into the session | |
110 | * | |
111 | * @param array $data the caching data | |
112 | * | |
113 | * @return object $this | |
114 | */ | |
115 | public function setCache(array $data) | |
116 | { | |
117 | ||
118 | $_SESSION['PHPIDS'][$this->type] = $data; | |
119 | return $this; | |
120 | } | |
121 | ||
122 | /** | |
123 | * Returns the cached data | |
124 | * | |
125 | * Note that this method returns false if either type or file cache is not set | |
126 | * | |
127 | * @return mixed cache data or false | |
128 | */ | |
129 | public function getCache() | |
130 | { | |
131 | ||
132 | if ($this->type && $_SESSION['PHPIDS'][$this->type]) { | |
133 | return $_SESSION['PHPIDS'][$this->type]; | |
134 | } | |
135 | ||
136 | return false; | |
137 | } | |
138 | } | |
139 | ||
140 | /** | |
141 | * Local variables: | |
142 | * tab-width: 4 | |
143 | * c-basic-offset: 4 | |
144 | * End: | |
145 | * vim600: sw=4 ts=4 expandtab | |
146 | */ |