Optimize CI_Session::__construct() routines and make driver validity check stricter
diff --git a/system/libraries/Session/Session.php b/system/libraries/Session/Session.php
index c7f6f82..659a026 100644
--- a/system/libraries/Session/Session.php
+++ b/system/libraries/Session/Session.php
@@ -60,11 +60,18 @@
public $params = array();
/**
+ * Valid drivers list
+ *
+ * @var array
+ */
+ public $valid_drivers = array('native', 'cookie');
+
+ /**
* Current driver in use
*
* @var string
*/
- protected $current = NULL;
+ public $current = NULL;
/**
* User data
@@ -105,36 +112,26 @@
log_message('debug', 'CI_Session Class Initialized');
- // Get valid drivers list
- $this->valid_drivers = array(
- 'native',
- 'cookie'
- );
- $key = 'sess_valid_drivers';
- $drivers = isset($params[$key]) ? $params[$key] : $CI->config->item($key);
- if ($drivers)
+ // Add possible extra entries to our valid drivers list
+ $drivers = isset($params['sess_valid_drivers']) ? $params['sess_valid_drivers'] : $CI->config->item('sess_valid_drivers');
+ if ( ! empty($drivers))
{
- // Add driver names to valid list
- foreach ((array) $drivers as $driver)
- {
- if ( ! in_array(strtolower($driver), array_map('strtolower', $this->valid_drivers)))
- {
- $this->valid_drivers[] = $driver;
- }
- }
+ $drivers = array_map('strtolower', (array) $drivers);
+ $this->valid_drivers = array_merge($this->valid_drivers, array_diff($drivers, $this->valid_drivers));
}
// Get driver to load
- $key = 'sess_driver';
- $driver = isset($params[$key]) ? $params[$key] : $CI->config->item($key);
+ $driver = isset($params['sess_driver']) ? $params['sess_driver'] : $CI->config->item('sess_driver');
if ( ! $driver)
{
+ log_message('debug', "Session: No driver name is configured, defaulting to 'cookie'.");
$driver = 'cookie';
}
- if ( ! in_array(strtolower($driver), array_map('strtolower', $this->valid_drivers)))
+ if ( ! in_array($driver, $this->valid_drivers))
{
- $this->valid_drivers[] = $driver;
+ log_message('error', 'Session: Configured driver name is not valid, aborting.');
+ return;
}
// Save a copy of parameters in case drivers need access