/**
* Publish an 'onException' event by calling all listeners that have registered to receive it.
*
* @param Exception $exception The exception to be published.
* @param array|Traversable $attributes An associative array or a Traversable object
* @param mixed $target The event target
* @return KEventException
*/
public function publishException(Exception $exception, $attributes = array(), $target = null)
{
//Make sure we have an event object
$event = new KEventException('onException', $attributes, $target);
$event->setException($exception);
parent::publishEvent($event);
}
public function onException(KEventException $event)
{
$exception = $event->getException();
if ($exception instanceof KHttpExceptionUnauthorized) {
$request = $this->getObject('request');
$response = $this->getObject('response');
if ($request->getFormat() == 'html' && $request->isSafe()) {
$message = $this->getObject('translator')->translate('You are not authorized to access this resource. Please login and try again.');
if (JFactory::getApplication()->isSite()) {
$url = JRoute::_('index.php?option=com_users&view=login&return=' . base64_encode((string) $request->getUrl()), false);
} else {
$url = JRoute::_('index.php', false);
}
$response->setRedirect($url, $message, 'error');
$response->send();
$event->stopPropagation();
}
}
}
/**
* Redirects guest users to login form on 404 errors if the entity can be accessed without the viewlevel filter
*
* @param KEventException $event
*/
public function onExceptionNotFound(KEventException $event)
{
if ($event->getException()->getCode() === KHttpResponse::NOT_FOUND && !$this->getObject('user')->isAuthentic()
&& $event->getException()->getMessage() !== 'File not found')
{
$model = $this->getController()->getModel();
$model->setState(array('access' => null));
if (!$model->fetch()->isNew())
{
$message = $this->getObject('translator')->translate('You are not authorized to access this resource. Please login and try again.');
$url = JRoute::_('index.php?option=com_users&view=login&return='.base64_encode((string) $this->getRequest()->getUrl()), false);
$this->getResponse()->setRedirect($url, $message, 'error');
$this->getResponse()->send();
$event->stopPropagation();
}
}
}
/**
* Handles 404 errors gracefully after log outs
*
* If a user does not have access to the entity after logging out, they will be redirected to the homepage.
*
* @param KEventException $event
* @return bool
*/
public function onErrorAfterLogout(KEventException $event)
{
if ($event->getException()->getCode() === KHttpResponse::NOT_FOUND && JFactory::getApplication()->isSite()) {
if (version_compare(JVERSION, '3.0', '<')) {
$hash = JApplication::getHash('plgSystemLogout');
// Watch out. Starts with lowercase p for 2.5
} else {
$hash = JApplicationHelper::getHash('PlgSystemLogout');
}
$app = JFactory::getApplication();
if ($app->input->cookie->getString($hash, null)) {
$app->enqueueMessage(JText::_('PLG_SYSTEM_LOGOUT_REDIRECT'));
$app->redirect('index.php');
return true;
}
}
}
