/**
* Used for tuisongbao web hook, realtime engine will call the service when user subscribe or unsubscribe a channel
* @return string json status
*/
public function actionUserState()
{
$body = $this->getParams();
$headers = Yii::$app->request->getHeaders();
$signature = hash_hmac('sha256', json_encode($body), TUISONGBAO_SECRET);
LogUtil::info(['body' => $body, 'signature' => $signature], 'webhook');
// Check whether it is called by the tuisongbao web hook
if ($signature === $headers['X-Engine-Signature']) {
//TODO: First event may not be the correct one
$time = $body['timestamp'];
$event = $body['events'][0];
$userId = $event['userId'];
$eventName = $event['name'];
//Tip: Only handle the user_removed event on global channel here
if (strpos($event['channel'], ChatConversation::CHANNEL_GLOBAL) !== false && ChatConversation::MONGOID_LENGTH === strlen($userId)) {
$helpdesk = HelpDesk::findByPk(new \MongoId($userId));
if (!empty($helpdesk)) {
if ($eventName == ChatConversation::EVENT_USER_ADDED || $eventName == ChatConversation::EVENT_USER_REMOVED) {
$updateTimePrefix = 'wm-update-time';
$cache = Yii::$app->cache;
$lastTime = $cache->get($updateTimePrefix . $userId);
// failed events will be send again, but timestamp will not change
// if a event is failed and other event has success, skip that failed event
// Event_1. user_add failed; Event_2, user_remove successed; Event_1. user_add successed
// skip Event_1. user_add successed
if (empty($lastTime) || $lastTime < $time) {
$cache->set($updateTimePrefix . $userId, $time);
HelpDesk::cacheOnlineDesks($helpdesk->_id . '', $helpdesk->accountId . '', $eventName);
}
}
}
}
}
}
