/**
* Handles methods that do not exist.
*
* @param string method name
* @param array arguments
* @return void
*/
public function __call($method, $args)
{
// get(Db/Mem/Tt/Fs)Instance($routeStamp)
if (substr($method, 0, 3) == 'get' && substr($method, -8) == 'Instance') {
$baseDriverKey = substr($method, 3, strlen($method) - 11);
if ($this->configObject->isExistsDriverKey($baseDriverKey) == FALSE) {
throw new ServRouteInstanceException(_('Instance.driver_not_supported:') . $baseDriverKey, 500);
}
// 路由驱动
$routeDriver = 'ServRoute_' . $baseDriverKey . '_Driver';
// 实例驱动
$instanceDriver = 'ServInstance_' . $baseDriverKey . '_Driver';
if (!Lemon::auto_load($routeDriver)) {
throw new ServRouteInstanceException(_('Instance.route_driver_not_found:') . $baseDriverKey, 500);
}
if (!Lemon::auto_load($instanceDriver)) {
throw new ServRouteInstanceException(_('Instance.instance_driver_not_found:') . $baseDriverKey, 500);
}
// 实例池
$driverInstancePoolName = $baseDriverKey;
if (!array_key_exists($driverInstancePoolName, $this->instancePools)) {
$this->instancePools[$driverInstancePoolName] = array();
}
// fast but unflexible
$thisRouteClassInstance = new $routeDriver($this->configObject->getDriverSetup($baseDriverKey), $args);
// slow but flexible
//$rc = new ReflectionClass($routeDriver);$thisRouteClassInstance = $rc->newInstanceArgs($args);
if (!$thisRouteClassInstance instanceof ServRoute_Driver || !is_subclass_of($thisRouteClassInstance, 'ServRoute_Driver')) {
throw new ServRouteInstanceException(_('Instance.route_driver_implements:') . $driverKey, 500);
}
// 路由key
$routeKey = $thisRouteClassInstance->getRouteKey();
// 初始化Pool中的routeKey
!isset($this->instancePools[$driverInstancePoolName][$routeKey]) && ($this->instancePools[$driverInstancePoolName][$routeKey] = false);
if ($this->instancePools[$driverInstancePoolName][$routeKey] !== FALSE && $this->instancePools[$driverInstancePoolName][$routeKey]->isAvailable() == TRUE) {
// 池中有对应的实例并且可用
return $this->instancePools[$driverInstancePoolName][$routeKey];
}
// 设定池中的实例
$thisInstanceClassInstance = new $instanceDriver($thisRouteClassInstance);
if (!$thisInstanceClassInstance instanceof ServInstance_Driver || !is_subclass_of($thisInstanceClassInstance, 'ServInstance_Driver')) {
throw new ServRouteInstanceException(_('Instance.instance_driver_implements:') . $driverKey, 500);
}
$this->instancePools[$driverInstancePoolName][$routeKey] = $thisInstanceClassInstance;
if ($this->instancePools[$driverInstancePoolName][$routeKey] !== FALSE) {
$this->instancePools[$driverInstancePoolName][$routeKey]->isAvailable() or $this->instancePools[$driverInstancePoolName][$routeKey]->setup();
if ($this->instancePools[$driverInstancePoolName][$routeKey]->isAvailable() != TRUE) {
throw new ServRouteInstanceException(_('Instance.getInstance Failed,Service Not Available.'), 500);
}
// 池中有对应的实例并且可用
return $this->instancePools[$driverInstancePoolName][$routeKey];
}
throw new ServRouteInstanceException(_('Instance.getInstance Failed,critical error'), 500);
} else {
throw new ServRouteInstanceException(_('Unknown Method'), 500);
}
}
/**
* Loads the configured driver and validates it.
*
* @param array|string custom configuration or config group name
* @return void
*/
public function __construct($config = FALSE)
{
if (is_string($config)) {
$name = $config;
// Test the config group name
if (($config = Lemon::config('cache.' . $config)) === NULL) {
throw new LemonRuntimeException('cache.undefined_group ' . $name, 500);
}
}
if (is_array($config)) {
// Append the default configuration options
$config += Lemon::config('cache.default');
} else {
// Load the default group
$config = Lemon::config('cache.default');
}
// Cache the config in the object
$this->config = $config;
// Set driver name
$driver = 'Cache_' . ucfirst($this->config['driver']) . '_Driver';
// Load the driver
if (!Lemon::auto_load($driver)) {
throw new LemonRuntimeException('core.driver_not_found ' . $this->config['driver'], 500);
}
// Initialize the driver
$this->driver = new $driver($this->config['params']);
// Validate the driver
if (!$this->driver instanceof Cache_Driver) {
throw new LemonRuntimeException('core.driver_implements ' . $this->config['driver'], 500);
}
if (Cache::$loaded !== TRUE) {
$this->config['requests'] = (int) $this->config['requests'];
if ($this->config['requests'] > 0 and mt_rand(1, $this->config['requests']) === 1) {
// Do garbage collection
$this->driver->delete_expired();
}
// Cache has been loaded once
Cache::$loaded = TRUE;
}
}
/**
* Create a new session.
*
* @param array variables to set after creation
* @return void
*/
public function create($vars = NULL, $_session_id = NULL)
{
// Destroy any current sessions
$this->destroy();
if (Session::$config['driver'] !== 'native') {
// Set driver name
$driver = 'Session_' . ucfirst(Session::$config['driver']) . '_Driver';
// Load the driver
if (!Lemon::auto_load($driver)) {
throw new LemonRuntimeException('core.driver_not_found ' . Session::$config['driver'], 500);
}
// Initialize the driver
Session::$driver = new $driver();
// Validate the driver
if (!Session::$driver instanceof Session_Driver) {
throw new LemonRuntimeException('core.driver_implements ' . Session::$config['driver'], 500);
}
// Register non-native driver as the session handler
session_set_save_handler(array(Session::$driver, 'open'), array(Session::$driver, 'close'), array(Session::$driver, 'read'), array(Session::$driver, 'write'), array(Session::$driver, 'destroy'), array(Session::$driver, 'gc'));
}
// Validate the session name
if (!preg_match('~^(?=.*[a-z])[a-z0-9_]++$~iD', Session::$config['name'])) {
throw new LemonRuntimeException('session.invalid_session_name ' . Session::$config['name'], 500);
}
// Name the session, this will also be the name of the cookie
session_name(Session::$config['name']);
// Set the session cookie parameters
session_set_cookie_params(Session::$config['expiration'], Lemon::config('cookie.path'), Lemon::config('cookie.domain'), Lemon::config('cookie.secure'), Lemon::config('cookie.httponly'));
// Start the session!
if ($_session_id !== NULL) {
//log::write('dbglog','got_sessionid not null '.$_session_id.PHP_EOL,__FILE__,__LINE__);
session_id($_session_id);
}
session_start();
// Put session_id in the session variable
$_SESSION['session_id'] = session_id();
// Set defaults
if (!isset($_SESSION['_kf_flash_'])) {
$_SESSION['total_hits'] = 0;
$_SESSION['_kf_flash_'] = array();
$_SESSION['user_agent'] = Lemon::$user_agent;
$_SESSION['ip_address'] = $this->input->ip_address();
}
// Set up flash variables
Session::$flash =& $_SESSION['_kf_flash_'];
// Increase total hits
$_SESSION['total_hits'] += 1;
// Validate data only on hits after one
if ($_SESSION['total_hits'] > 1) {
// Validate the session
foreach (Session::$config['validate'] as $valid) {
switch ($valid) {
// Check user agent for consistency
case 'user_agent':
if ($_SESSION[$valid] !== Lemon::$user_agent) {
return $this->create(NULL, $_session_id);
}
break;
// Check ip address for consistency
// Check ip address for consistency
case 'ip_address':
if ($_SESSION[$valid] !== $this->input->{$valid}()) {
return $this->create(NULL, $_session_id);
}
break;
// Check expiration time to prevent users from manually modifying it
// Check expiration time to prevent users from manually modifying it
case 'expiration':
if (time() - $_SESSION['last_activity'] > ini_get('session.gc_maxlifetime')) {
return $this->create(NULL, $_session_id);
}
break;
}
}
}
// Expire flash keys
$this->expire_flash();
// Update last activity
$_SESSION['last_activity'] = time();
// Set the new data
Session::set($vars);
}
