/**
* Endpoint for periodic (every 10-20 seconds) maintenance services like:
* - user authentication
* - getting the list of actions to execute on the client side
* - getting the list of events to listen on the client side
* - maintenance actions in messages, bans, users, etc.
*/
public function maintenanceEndpoint()
{
$this->verifyCheckSum();
$response = array();
try {
$this->checkChatOpen();
$this->checkUserAuthorization();
$this->checkGetParams(array('channelId', 'lastActionId'));
$channelId = $this->getGetParam('channelId');
$channel = $this->channelsDAO->get($channelId);
$this->checkChannel($channel);
$this->checkChannelAuthorization($channel);
// periodic maintenance:
$this->userService->periodicMaintenance($channel);
$this->messagesService->periodicMaintenance($channel);
$this->bansService->periodicMaintenance();
// load actions:
$lastActionId = intval($this->getGetParam('lastActionId', 0));
$user = $this->authentication->getUser();
$response['actions'] = $this->actions->getJSONReadyActions($lastActionId, $user);
// load events:
$response['events'] = array();
if ($this->userEvents->shouldTriggerEvent('usersList', $channel->getName())) {
if ($this->options->isOptionEnabled('show_users')) {
$response['events'][] = array('name' => 'refreshUsersList', 'data' => $this->renderer->getRenderedUsersList($channel));
}
if ($this->options->isOptionEnabled('show_users_counter')) {
$response['events'][] = array('name' => 'refreshUsersCounter', 'data' => array('total' => $this->channelUsersDAO->getAmountOfUsersInChannel($channel->getId())));
}
}
} catch (WiseChatUnauthorizedAccessException $exception) {
$response['error'] = $exception->getMessage();
$this->sendUnauthorizedStatus();
} catch (Exception $exception) {
$response['error'] = $exception->getMessage();
$this->sendBadRequestStatus();
}
echo json_encode($response);
die;
}
/**
* Refreshes username on user interface. Resets event tracker for users list and
* publishes an action that refreshes username in plain places.
*
* @param WiseChatUser $user
*
* @return null
*/
private function refreshUserName($user)
{
$this->userEvents->resetEventTracker('usersList');
$this->actions->publishAction('refreshPlainUserName', array('name' => $user->getName()), $user);
}
