Verzeichnisstruktur phpBB-3.3.15
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- 28.08.2024
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MetadataBag.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\HttpFoundation\Session\Storage;
013
014 use Symfony\Component\HttpFoundation\Session\SessionBagInterface;
015
016 /**
017 * Metadata container.
018 *
019 * Adds metadata to the session.
020 *
021 * @author Drak <drak@zikula.org>
022 */
023 class MetadataBag implements SessionBagInterface
024 {
025 const CREATED = 'c';
026 const UPDATED = 'u';
027 const LIFETIME = 'l';
028
029 /**
030 * @var string
031 */
032 private $name = '__metadata';
033
034 /**
035 * @var string
036 */
037 private $storageKey;
038
039 /**
040 * @var array
041 */
042 protected $meta = [self::CREATED => 0, self::UPDATED => 0, self::LIFETIME => 0];
043
044 /**
045 * Unix timestamp.
046 *
047 * @var int
048 */
049 private $lastUsed;
050
051 /**
052 * @var int
053 */
054 private $updateThreshold;
055
056 /**
057 * @param string $storageKey The key used to store bag in the session
058 * @param int $updateThreshold The time to wait between two UPDATED updates
059 */
060 public function __construct($storageKey = '_sf2_meta', $updateThreshold = 0)
061 {
062 $this->storageKey = $storageKey;
063 $this->updateThreshold = $updateThreshold;
064 }
065
066 /**
067 * {@inheritdoc}
068 */
069 public function initialize(array &$array)
070 {
071 $this->meta = &$array;
072
073 if (isset($array[self::CREATED])) {
074 $this->lastUsed = $this->meta[self::UPDATED];
075
076 $timeStamp = time();
077 if ($timeStamp - $array[self::UPDATED] >= $this->updateThreshold) {
078 $this->meta[self::UPDATED] = $timeStamp;
079 }
080 } else {
081 $this->stampCreated();
082 }
083 }
084
085 /**
086 * Gets the lifetime that the session cookie was set with.
087 *
088 * @return int
089 */
090 public function getLifetime()
091 {
092 return $this->meta[self::LIFETIME];
093 }
094
095 /**
096 * Stamps a new session's metadata.
097 *
098 * @param int $lifetime Sets the cookie lifetime for the session cookie. A null value
099 * will leave the system settings unchanged, 0 sets the cookie
100 * to expire with browser session. Time is in seconds, and is
101 * not a Unix timestamp.
102 */
103 public function stampNew($lifetime = null)
104 {
105 $this->stampCreated($lifetime);
106 }
107
108 /**
109 * {@inheritdoc}
110 */
111 public function getStorageKey()
112 {
113 return $this->storageKey;
114 }
115
116 /**
117 * Gets the created timestamp metadata.
118 *
119 * @return int Unix timestamp
120 */
121 public function getCreated()
122 {
123 return $this->meta[self::CREATED];
124 }
125
126 /**
127 * Gets the last used metadata.
128 *
129 * @return int Unix timestamp
130 */
131 public function getLastUsed()
132 {
133 return $this->lastUsed;
134 }
135
136 /**
137 * {@inheritdoc}
138 */
139 public function clear()
140 {
141 // nothing to do
142 }
143
144 /**
145 * {@inheritdoc}
146 */
147 public function getName()
148 {
149 return $this->name;
150 }
151
152 /**
153 * Sets name.
154 *
155 * @param string $name
156 */
157 public function setName($name)
158 {
159 $this->name = $name;
160 }
161
162 private function stampCreated($lifetime = null)
163 {
164 $timeStamp = time();
165 $this->meta[self::CREATED] = $this->meta[self::UPDATED] = $this->lastUsed = $timeStamp;
166 $this->meta[self::LIFETIME] = (null === $lifetime) ? ini_get('session.cookie_lifetime') : $lifetime;
167 }
168 }
169