blob: 3a409346fed1517d7043c211e9676c1771aa6ecd (
plain)
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
|
<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Session
* @copyright Copyright (c) 2005-2007 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
* @since Preview Release 0.2
*/
/**
* Zend_Session_Abstract
*
* @category Zend
* @package Zend_Session
* @copyright Copyright (c) 2005-2007 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
abstract class Zend_Session_Abstract
{
/**
* Whether or not session permits writing (modification of $_SESSION[])
*
* @var bool
*/
protected static $_writable = false;
/**
* Whether or not session permits reading (reading data in $_SESSION[])
*
* @var bool
*/
protected static $_readable = false;
/**
* Since expiring data is handled at startup to avoid __destruct difficulties,
* the data that will be expiring at end of this request is held here
*
* @var array
*/
protected static $_expiringData = array();
/**
* Error message thrown when an action requires modification,
* but current Zend_Session has been marked as read-only.
*/
const _THROW_NOT_WRITABLE_MSG = 'Zend_Session is currently marked as read-only.';
/**
* Error message thrown when an action requires reading session data,
* but current Zend_Session is not marked as readable.
*/
const _THROW_NOT_READABLE_MSG = 'Zend_Session is not marked as readable.';
/**
* namespaceIsset() - check to see if a namespace or a variable within a namespace is set
*
* @param string $namespace
* @param string $name
* @return bool
*/
protected static function _namespaceIsset($namespace, $name = null)
{
if (self::$_readable === false) {
/**
* @see Zend_Session_Exception
*/
require_once 'Zend/Session/Exception.php';
throw new Zend_Session_Exception(self::_THROW_NOT_READABLE_MSG);
}
if ($name === null) {
return ( isset($_SESSION[$namespace]) || isset(self::$_expiringData[$namespace]) );
} else {
return ( isset($_SESSION[$namespace][$name]) || isset(self::$_expiringData[$namespace][$name]) );
}
}
/**
* namespaceUnset() - unset a namespace or a variable within a namespace
*
* @param string $namespace
* @param string $name
* @throws Zend_Session_Exception
* @return void
*/
protected static function _namespaceUnset($namespace, $name = null)
{
if (self::$_writable === false) {
/**
* @see Zend_Session_Exception
*/
require_once 'Zend/Session/Exception.php';
throw new Zend_Session_Exception(self::_THROW_NOT_WRITABLE_MSG);
}
$name = (string) $name;
// check to see if the api wanted to remove a var from a namespace or a namespace
if ($name === '') {
unset($_SESSION[$namespace]);
unset(self::$_expiringData[$namespace]);
} else {
unset($_SESSION[$namespace][$name]);
unset(self::$_expiringData[$namespace]);
}
// if we remove the last value, remove namespace.
if (empty($_SESSION[$namespace])) {
unset($_SESSION[$namespace]);
}
}
/**
* namespaceGet() - Get $name variable from $namespace, returning by reference.
*
* @param string $namespace
* @param string $name
* @return mixed
*/
protected static function & _namespaceGet($namespace, $name = null)
{
if (self::$_readable === false) {
/**
* @see Zend_Session_Exception
*/
require_once 'Zend/Session/Exception.php';
throw new Zend_Session_Exception(self::_THROW_NOT_READABLE_MSG);
}
if ($name === null) {
if (isset($_SESSION[$namespace])) { // check session first for data requested
return $_SESSION[$namespace];
} elseif (isset(self::$_expiringData[$namespace])) { // check expiring data for data reqeusted
return self::$_expiringData[$namespace];
} else {
return $_SESSION[$namespace]; // satisfy return by reference
}
} else {
if (isset($_SESSION[$namespace][$name])) { // check session first
return $_SESSION[$namespace][$name];
} elseif (isset(self::$_expiringData[$namespace][$name])) { // check expiring data
return self::$_expiringData[$namespace][$name];
} else {
return $_SESSION[$namespace][$name]; // satisfy return by reference
}
}
}
/**
* namespaceGetAll() - Get an array containing $namespace, including expiring data.
*
* @param string $namespace
* @param string $name
* @return mixed
*/
protected static function _namespaceGetAll($namespace)
{
$currentData = (isset($_SESSION[$namespace]) && is_array($_SESSION[$namespace])) ?
$_SESSION[$namespace] : array();
$expiringData = (isset(self::$_expiringData[$namespace]) && is_array(self::$_expiringData[$namespace])) ?
self::$_expiringData[$namespace] : array();
return array_merge($currentData, $expiringData);
}
}
|