/**
* Loads the controller class and instantiate it.
* @return object
* @throws Exception_Exido_404
* @throws Exception_Exido_403
*/
public static function &instance()
{
// ExidoEngine logo
if (Input::instance()->checkGet(EXIDO_LOGO_GUID)) {
self::_logo();
} elseif (self::$_instance === null) {
try {
// Debug log
if (self::$log_debug) {
self::$log->add('EXIDO_DEBUG_LOG', 'Include controller class: ' . Router::$controller);
}
// Start validation of the controller
include Router::$controller_path;
$class = new ReflectionClass(Router::$controller);
} catch (Exception_Exido_404 $e) {
// Controller does not exist
throw new Exception_Exido_404('The requested page %s is not found', array(Router::$controller));
}
if ($class->isAbstract() or IN_PRODUCTION and $class->getConstant('ALLOW_PRODUCTION') == false) {
// Controller is not allowed to run in production
throw new Exception_Exido_403("The controller %s doesn't allowed to run in production", array(Router::$controller));
}
// Create a new controller instance
self::$_instance = $class->newInstance();
try {
// Load the controller method
$method = $class->getMethod(Router::$method);
// Method exists
if (Router::$method[0] === '_') {
// Do not allow access to hidden methods
throw new Exception_Exido_403("The method %s doesn't allowed to run in production", array(Router::$method));
}
if (strstr(Router::$method, 'Controller')) {
// Do not allow access to special methods
throw new Exception_Exido_403("The method %s doesn't allowed to run directly", array(Router::$method));
}
if ($method->isProtected() or $method->isPrivate()) {
// Do not attempt to invoke protected methods
throw new Exception_Exido_403("The method %s doesn't allowed to run in production as it is protected or private", array(Router::$method));
}
// Default arguments
$arguments = Router::$arguments;
} catch (Exception $e) {
// Use __call instead
$method = $class->getMethod('__call');
// Use arguments in __call format
$arguments = array(Router::$method, Router::$arguments);
}
$is_before_fails = false;
// Execute the "before action" method
// If the "before action" returns FALSE controller method not executed
if ($class->getMethod('beforeController')->invoke(self::$_instance) === false) {
$is_before_fails = true;
} else {
// Otherwise execute the controller method
$method->invokeArgs(self::$_instance, $arguments);
}
if ($class->getProperty('preventAfterController')->getValue() == null) {
// Execute the "after action" method
$class->getMethod('afterController')->invoke(self::$_instance);
}
if ($is_before_fails == false) {
// Execute the "pushLayout" method
$class->getMethod('pushLayoutController')->invoke(self::$_instance);
}
}
return self::$_instance;
}
