MetadataBag.php
3.6 KB
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
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\HttpFoundation\Session\Storage;
use Symfony\Component\HttpFoundation\Session\SessionBagInterface;
/**
* Metadata container.
*
* Adds metadata to the session.
*
* @author Drak <drak@zikula.org>
*/
class MetadataBag implements SessionBagInterface
{
public const CREATED = 'c';
public const UPDATED = 'u';
public const LIFETIME = 'l';
/**
* @var string
*/
private $name = '__metadata';
/**
* @var string
*/
private $storageKey;
/**
* @var array
*/
protected $meta = [self::CREATED => 0, self::UPDATED => 0, self::LIFETIME => 0];
/**
* Unix timestamp.
*
* @var int
*/
private $lastUsed;
/**
* @var int
*/
private $updateThreshold;
/**
* @param string $storageKey The key used to store bag in the session
* @param int $updateThreshold The time to wait between two UPDATED updates
*/
public function __construct(string $storageKey = '_sf2_meta', int $updateThreshold = 0)
{
$this->storageKey = $storageKey;
$this->updateThreshold = $updateThreshold;
}
/**
* {@inheritdoc}
*/
public function initialize(array &$array)
{
$this->meta = &$array;
if (isset($array[self::CREATED])) {
$this->lastUsed = $this->meta[self::UPDATED];
$timeStamp = time();
if ($timeStamp - $array[self::UPDATED] >= $this->updateThreshold) {
$this->meta[self::UPDATED] = $timeStamp;
}
} else {
$this->stampCreated();
}
}
/**
* Gets the lifetime that the session cookie was set with.
*
* @return int
*/
public function getLifetime()
{
return $this->meta[self::LIFETIME];
}
/**
* Stamps a new session's metadata.
*
* @param int|null $lifetime Sets the cookie lifetime for the session cookie. A null value
* will leave the system settings unchanged, 0 sets the cookie
* to expire with browser session. Time is in seconds, and is
* not a Unix timestamp.
*/
public function stampNew(?int $lifetime = null)
{
$this->stampCreated($lifetime);
}
/**
* {@inheritdoc}
*/
public function getStorageKey()
{
return $this->storageKey;
}
/**
* Gets the created timestamp metadata.
*
* @return int Unix timestamp
*/
public function getCreated()
{
return $this->meta[self::CREATED];
}
/**
* Gets the last used metadata.
*
* @return int Unix timestamp
*/
public function getLastUsed()
{
return $this->lastUsed;
}
/**
* {@inheritdoc}
*/
public function clear()
{
// nothing to do
return null;
}
/**
* {@inheritdoc}
*/
public function getName()
{
return $this->name;
}
/**
* Sets name.
*/
public function setName(string $name)
{
$this->name = $name;
}
private function stampCreated(?int $lifetime = null): void
{
$timeStamp = time();
$this->meta[self::CREATED] = $this->meta[self::UPDATED] = $this->lastUsed = $timeStamp;
$this->meta[self::LIFETIME] = $lifetime ?? (int) \ini_get('session.cookie_lifetime');
}
}