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<?php
namespace Laminas\Session\SaveHandler;
use Laminas\Db\TableGateway\TableGateway;
use ReturnTypeWillChange;
use function ini_get;
use function sprintf;
use function time;
/**
* DB Table Gateway session save handler
*
* @see ReturnTypeWillChange
*/
class DbTableGateway implements SaveHandlerInterface
{
/**
* Session Save Path
*
* @var string
*/
protected $sessionSavePath;
/**
* Session Name
*
* @var string
*/
protected $sessionName;
/**
* Lifetime
*
* @var int
*/
protected $lifetime;
/**
* Laminas Db Table Gateway
*
* @var TableGateway
*/
protected $tableGateway;
/**
* DbTableGateway Options
*
* @var DbTableGatewayOptions
*/
protected $options;
/**
* Constructor
*/
public function __construct(TableGateway $tableGateway, DbTableGatewayOptions $options)
{
$this->tableGateway = $tableGateway;
$this->options = $options;
}
/**
* Open Session
*
* @param string $savePath
* @param string $name
* @return bool
*/
#[ReturnTypeWillChange]
public function open($savePath, $name)
{
$this->sessionSavePath = $savePath;
$this->sessionName = $name;
$this->lifetime = ini_get('session.gc_maxlifetime');
return true;
}
/**
* Close session
*
* @return bool
*/
#[ReturnTypeWillChange]
public function close()
{
return true;
}
/**
* Read session data
*
* @param string $id
* @param bool $destroyExpired Optional; true by default
* @return string
*/
#[ReturnTypeWillChange]
public function read($id, $destroyExpired = true)
{
$row = $this->tableGateway->select([
$this->options->getIdColumn() => $id,
$this->options->getNameColumn() => $this->sessionName,
])->current();
if ($row) {
if (
$row->{$this->options->getModifiedColumn()} +
$row->{$this->options->getLifetimeColumn()} > time()
) {
return (string) $row->{$this->options->getDataColumn()};
}
if ($destroyExpired) {
$this->destroy($id);
}
}
return '';
}
/**
* Write session data
*
* @param string $id
* @param string $data
* @return bool
*/
#[ReturnTypeWillChange]
public function write($id, $data)
{
$data = [
$this->options->getModifiedColumn() => time(),
$this->options->getDataColumn() => (string) $data,
];
$rows = $this->tableGateway->select([
$this->options->getIdColumn() => $id,
$this->options->getNameColumn() => $this->sessionName,
])->current();
if ($rows) {
return (bool) $this->tableGateway->update($data, [
$this->options->getIdColumn() => $id,
$this->options->getNameColumn() => $this->sessionName,
]);
}
$data[$this->options->getLifetimeColumn()] = $this->lifetime;
$data[$this->options->getIdColumn()] = $id;
$data[$this->options->getNameColumn()] = $this->sessionName;
return (bool) $this->tableGateway->insert($data);
}
/**
* Destroy session
*
* @param string $id
* @return bool
*/
#[ReturnTypeWillChange]
public function destroy($id)
{
$this->tableGateway->delete([
$this->options->getIdColumn() => $id,
$this->options->getNameColumn() => $this->sessionName,
]);
return true;
}
/**
* Garbage Collection
*
* @param int $maxlifetime
* @return true
*/
#[ReturnTypeWillChange]
public function gc($maxlifetime)
{
$platform = $this->tableGateway->getAdapter()->getPlatform();
return (bool) $this->tableGateway->delete(
sprintf(
'%s < %d',
$platform->quoteIdentifier($this->options->getModifiedColumn()),
time() - $this->lifetime
)
);
}
}