Пример #1
0
func OnlineUsersSimpleHandler(w http.ResponseWriter, req *http.Request) {
	defer func() {
		if err := recover(); err != nil {
			utils.Log.Println(err)
			debug.PrintStack()
		}
	}()

	w.Header().Set("Access-Control-Allow-Origin", "*")
	w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
	w.Header().Set("Access-Control-Allow-Headers", "channel, tourid, tag")

	var online_users_simple lib.OnlineUsersSimple
	var channel_name string

	all_channel.RLock.RLock()
	defer all_channel.RLock.RUnlock()

	channel_name = req.Header.Get("channel")
	channel_name = strings.Trim(channel_name, " ")
	if channel_name == "" {
		utils.Log.Printf("[%s] channel name not in header\n", req.RemoteAddr)
		http.Error(w, "channel name not in header", 400)
		return
	}

	channel := GetChannel(channel_name)

	online_users_simple.Length = atomic.LoadUint64(&channel.RealUserCount)
	online_users_simple.Result = 0

	buf, err := ffjson.Marshal(online_users_simple)
	if err != nil {
		utils.Log.Printf("[%s] Marshal JSON failed: [%s], channel: [%s]\n", req.RemoteAddr, err, channel_name)
		http.Error(w, "Marshal json failed", 500)
		return
	}

	w.Header().Set("Content-Type", "application/json; charset=utf-8")
	w.Write(buf)

	ffjson.Pool(buf)
}
Пример #2
0
func OnlineUsersSimpleHandler(w http.ResponseWriter, req *http.Request) {
	defer func() {
		if err := recover(); err != nil {
			utils.Log.Println(err)
			debug.PrintStack()
		}
	}()

	w.Header().Set("Access-Control-Allow-Origin", "*")
	w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
	w.Header().Set("Access-Control-Allow-Headers", "channel, tourid, tag")

	var online_users_simple lib.OnlineUsersSimple
	var channel_name string
	var mqtt_users lib.MQTTSingleTopicUsers

	all_channel.RLock.RLock()
	defer all_channel.RLock.RUnlock()

	channel_name = req.Header.Get("channel")
	channel_name = strings.Trim(channel_name, " ")
	if channel_name == "" {
		utils.Log.Printf("[%s] channel name not in header\n", req.RemoteAddr)
		http.Error(w, "channel name not in header", 400)
		return
	}

	if Config.MQTTServerEnable == true {
		resp, err := http.Get("http://" + Config.MQTTServerAddress + ":18088/api/simple_topic/" + channel_name)
		if resp != nil {
			defer resp.Body.Close()
		}

		if err != nil {
			utils.Log.Printf("[%s] Get MQTT online users failed: %s, channel: [%s]\n", req.RemoteAddr, err, channel_name)
			http.Error(w, "failed to get MQTT users", 500)
			return
		}

		body, err := ioutil.ReadAll(resp.Body)
		if err != nil {
			utils.Log.Printf("[%s] Read MQTT response failed: %s, channel: [%s]\n", req.RemoteAddr, err, channel_name)
			http.Error(w, "read MQTT users failed", 500)
			return
		}

		err = json.Unmarshal(body, &mqtt_users)
		if err != nil {
			utils.Log.Printf("[%s] Unmarshal JSON failed: [%s], channel: [%s]\n", req.RemoteAddr, err, channel_name)
			http.Error(w, "Unmarshal json failed", 500)
			return
		}

		online_users_simple.Length = mqtt_users.Length
	}

	channel := GetChannel(channel_name)

	online_users_simple.Length += atomic.LoadUint64(&channel.RealUserCount)
	online_users_simple.Result = 0

	buf, err := ffjson.Marshal(online_users_simple)
	if err != nil {
		utils.Log.Printf("[%s] Marshal JSON failed: [%s], channel: [%s]\n", req.RemoteAddr, err, channel_name)
		http.Error(w, "Marshal json failed", 500)
		return
	}

	w.Header().Set("Content-Type", "application/json; charset=utf-8")
	w.Write(buf)

	ffjson.Pool(buf)
}