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- <?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
- {
- const CREATED = 'c';
- const UPDATED = 'u';
- const LIFETIME = 'l';
- /**
- * @var string
- */
- private $name = '__metadata';
- /**
- * @var string
- */
- private $storageKey;
- /**
- * @var array
- */
- protected $meta = array(self::CREATED => 0, self::UPDATED => 0, self::LIFETIME => 0);
- /**
- * Unix timestamp.
- *
- * @var int
- */
- private $lastUsed;
- /**
- * @var int
- */
- private $updateThreshold;
- /**
- * Constructor.
- *
- * @param string $storageKey The key used to store bag in the session.
- * @param int $updateThreshold The time to wait between two UPDATED updates
- */
- public function __construct($storageKey = '_sf2_meta', $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 $lifetime Sets the cookie lifetime for the session cookie. A null value
- * will leave the system settings unchanged, 0 sets the cookie
- * to expire with browser session. Time is in seconds, and is
- * not a Unix timestamp.
- */
- public function stampNew($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
- }
- /**
- * {@inheritdoc}
- */
- public function getName()
- {
- return $this->name;
- }
- /**
- * Sets name.
- *
- * @param string $name
- */
- public function setName($name)
- {
- $this->name = $name;
- }
- private function stampCreated($lifetime = null)
- {
- $timeStamp = time();
- $this->meta[self::CREATED] = $this->meta[self::UPDATED] = $this->lastUsed = $timeStamp;
- $this->meta[self::LIFETIME] = (null === $lifetime) ? ini_get('session.cookie_lifetime') : $lifetime;
- }
- }
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