コード例 #1
0
ファイル: server.go プロジェクト: jrconlin/go-push-server
func pushHandler(ws *websocket.Conn) {

	client := &Client{ws, "", "", 0, time.Now()}

	for {
		var f map[string]interface{}

		var err error
		if err = websocket.JSON.Receive(ws, &f); err != nil {
			log.Println("Websocket Disconnected.", err.Error())
			break
		}

		client.LastContact = time.Now()
		log.Println("pushHandler msg: ", f["messageType"])

		messageType, found := f["messageType"]
		if !found {
			// treat it as a ping
			websocket.Message.Send(client.Websocket, "{}")
			continue
		}

		switch messageType {
		case "hello":
			handleHello(client, f)
			break

		case "register":
			handleRegister(client, f)
			break

		case "unregister":
			handleUnregister(client, f)
			break

		case "ack":
			handleAck(client, f)
			break

		default:
			log.Println(" -> Unknown", f)
			break
		}

		saveState()
	}

	log.Println("Closing Websocket!")
	ws.Close()

	// if a client disconnected before completing the handshake
	// it'll have an empty UAID
	if client.UAID != "" {
		gServerState.ConnectedClients[client.UAID].Websocket = nil
	}
}
コード例 #2
0
ファイル: websocket.go プロジェクト: Neeke/studygolang
// websocket,统计在线用户数
// uri: /ws
func WsHandler(wsConn *websocket.Conn) {
	mutex.Lock()
	ServerId++
	serverId := ServerId
	mutex.Unlock()
	req := wsConn.Request()
	user, err := strconv.Atoi(req.FormValue("uid"))
	if err != nil || user == 0 {
		pos := strings.LastIndex(req.RemoteAddr, ":")
		ip := req.RemoteAddr[:pos]
		user = int(util.Ip2long(ip))
	}
	userData := service.Book.AddUser(user, serverId)
	// 给自己发送消息,告诉当前在线用户数、历史最高在线人数
	onlineInfo := map[string]int{"online": service.Book.Len(), "maxonline": service.MaxOnlineNum()}
	message := service.NewMessage(service.WsMsgOnline, onlineInfo)
	err = websocket.JSON.Send(wsConn, message)
	if err != nil {
		logger.Errorln("Sending onlineusers error:", err)
	}
	var clientClosed = false
	for {
		select {
		case message := <-userData.MessageQueue(serverId):
			if err := websocket.JSON.Send(wsConn, message); err != nil {
				clientClosed = true
			}
			// 心跳
		case <-time.After(30e9):
			if err := websocket.JSON.Send(wsConn, ""); err != nil {
				clientClosed = true
			}
		}
		if clientClosed {
			service.Book.DelUser(user, serverId)
			break
		}
	}
	// 用户退出时需要变更其他用户看到的在线用户数
	if !service.Book.UserIsOnline(user) {
		message := service.NewMessage(service.WsMsgOnline, map[string]int{"online": service.Book.Len()})
		go service.Book.BroadcastAllUsersMessage(message)
	}
}
コード例 #3
0
ファイル: server.go プロジェクト: houcy/go-push-server
func pushHandler(ws *websocket.Conn) {

	client := &Client{ws, "", "", 0, time.Now()}

	for {
		var f map[string]interface{}

		var err error
		if err = websocket.JSON.Receive(ws, &f); err != nil {
			log.Println("Websocket Disconnected.", err.Error())
			break
		}

		client.LastContact = time.Now()
		log.Println("pushHandler msg: ", f["messageType"], len(f), f)

		if len(f) == 0 {
			websocket.Message.Send(client.Websocket, "{}")
			continue
		}

		messageType, found := f["messageType"]
		if !found {
			// treat it as a ping
			f["messageType"] = ""
			messageType = ""
		}
		switch messageType.(type) {
		case string:
			switch strings.ToLower(messageType.(string)) {
			case "hello":
				handleHello(client, f)
				break

			case "register":
				handleRegister(client, f)
				break

			case "unregister":
				handleUnregister(client, f)
				break

			case "ack":
				handleAck(client, f)
				break

			case "ping":
				websocket.Message.Send(client.Websocket, "{}")
				continue

			case "purge":
				verbose("Purging data for ", client.UAID)
				handlePurge(client, f)
				break

			default:
				log.Println(" -> Unknown", f)
				verbose("Please only use 'hello', 'register', 'unregister'",
					"or 'ack' as messageType values.")
				handleError(client, f, 401, "Invalid Command")
				break
			}
			saveState()
		default:
			handleError(client, f, 401, "Invalid Command")
			verbose("Please use only strings as messageTypes")
			break
		}
	}

	log.Println("Closing Websocket!")
	ws.Close()

	// if a client disconnected before completing the handshake
	// it'll have an empty UAID
	if client.UAID != "" {
		gServerState.ConnectedClients[client.UAID].Websocket = nil
	}
}