TYPO3 Core

// Gets SesData if any AND if not already selected by session fixation check in ->isExistingSessionRecord()

if ($this->id && !count($this->sesData)) {

/**

* Determine whether there's an according session record to a given session_id

* in the database. Don't care if session record is still valid or not.

*

* This calls the parent function but additionally tries to look up the session ID in the "fe_session_data" table.

*

* @param integer Claimed Session ID

* @return boolean Returns true if a corresponding session was found in the database

*/

function isExistingSessionRecord($id) {

// Perform check in parent function

$count = parent::isExistingSessionRecord($id);

// Check if there are any fe_session_data records for the session ID the client claims to have

if ($count == false) {

$dbres = $GLOBALS['TYPO3_DB']->exec_SELECTquery(

'content',

'fe_session_data',

'hash=' . $GLOBALS['TYPO3_DB']->fullQuoteStr($id, 'fe_session_data')

);

if ($dbres !== false) {

if ($sesDataRow = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($dbres)) {

$count = true;

$this->sesData = unserialize($sesDataRow['content']);

}

}

}

// @deprecated: Check for commerce basket records. The following lines should be removed once a fixed commerce version is released.

// Extensions like commerce which have their own session table should just put some small bit of data into fe_session_data using $GLOBALS['TSFE']->fe_user->setKey('ses', ...) to make the session stable.

if ($count == false && t3lib_extMgm::isLoaded('commerce')) {

$dbres = $GLOBALS['TYPO3_DB']->exec_SELECTquery(

'*',

'tx_commerce_baskets',

'sid=' . $GLOBALS['TYPO3_DB']->fullQuoteStr($id, 'tx_commerce_baskets')

);

if ($dbres !== false) {

if ($sesDataRow = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($dbres)) {

$count = true;

}

}

}

return $count;

}