Golang libnet.Json函数代码示例

func (self *Manager) subscribeChannels() error {
	log.Info("subscribeChannels")
	var msgServerClientList []*libnet.Session
	for _, ms := range self.cfg.MsgServerList {
		msgServerClient, err := self.connectMsgServer(ms)
		if err != nil {
			log.Error(err.Error())
			return err
		}
		cmd := protocol.NewCmdSimple(protocol.SUBSCRIBE_CHANNEL_CMD)
		cmd.AddArg(protocol.SYSCTRL_CLIENT_STATUS)
		cmd.AddArg(self.cfg.UUID)

		err = msgServerClient.Send(libnet.Json(cmd))
		if err != nil {
			log.Error(err.Error())
			return err
		}

		cmd = protocol.NewCmdSimple(protocol.SUBSCRIBE_CHANNEL_CMD)
		cmd.AddArg(protocol.SYSCTRL_TOPIC_STATUS)
		cmd.AddArg(self.cfg.UUID)

		err = msgServerClient.Send(libnet.Json(cmd))
		if err != nil {
			log.Error(err.Error())
			return err
		}

		cmd = protocol.NewCmdSimple(protocol.SUBSCRIBE_CHANNEL_CMD)
		cmd.AddArg(protocol.STORE_CLIENT_INFO)
		cmd.AddArg(self.cfg.UUID)

		err = msgServerClient.Send(libnet.Json(cmd))
		if err != nil {
			log.Error(err.Error())
			return err
		}

		cmd = protocol.NewCmdSimple(protocol.SUBSCRIBE_CHANNEL_CMD)
		cmd.AddArg(protocol.STORE_TOPIC_INFO)
		cmd.AddArg(self.cfg.UUID)

		err = msgServerClient.Send(libnet.Json(cmd))
		if err != nil {
			log.Error(err.Error())
			return err
		}

		msgServerClientList = append(msgServerClientList, msgServerClient)
	}

	for _, msc := range msgServerClientList {
		go self.handleMsgServerClient(msc)
	}
	return nil
}

/*
   Router -> MsgServer
       ROUTE_SEND_P2P_MSG_CMD
       arg0: Sent2ID       //接收方用户ID
       arg1: Msg           //消息内容
       arg2: FromID        //发送方用户ID
       arg3: uuid          //MsgServer分配的消息uuid

   发送给消息接受者的消息
   MsgServer -> device/client
       REQ_SEND_P2P_MSG_CMD
       arg0: Msg           //消息内容
       arg1: FromID        //发送方用户ID
       arg2: uuid          //MsgServer分配的消息uuid，可选，如果提供了则须IND_ACK_P2P_STATUS_CMD(ClientID, uuid)
*/
func (self *ProtoProc) procRouteMessageP2P(cmd protocol.Cmd, session *libnet.Session) error {
	log.Info("procRouteMessageP2P")
	var err error

	send2ID := cmd.GetArgs()[0]
	send2Msg := cmd.GetArgs()[1]
	fromID := cmd.GetArgs()[2]
	uuid := cmd.GetArgs()[3]

	if self.msgServer.sessions[send2ID] != nil {
		resp := protocol.NewCmdSimple(protocol.REQ_SEND_P2P_MSG_CMD)
		resp.AddArg(send2Msg)
		resp.AddArg(fromID)
		// add uuid
		resp.AddArg(uuid)

		err = self.msgServer.sessions[send2ID].Send(libnet.Json(resp))
		if err != nil {
			log.Fatalln(err.Error())
		} else {
			self.procP2PAckStatus(fromID, uuid, protocol.P2P_ACK_SENT)
		}
	}

	return nil
}

/*
   client -> MsgServer
       REQ_JOIN_TOPIC_CMD
       arg0: TopicName     //群组名
       arg1: ClientName    //用户在Topic中的Name, 比如老爸/老妈

   MsgServer -> client
       RSP_JOIN_TOPIC_CMD
       arg0: SUCCESS/FAILED
*/
func (self *ProtoProc) procJoinTopic(cmd protocol.Cmd, session *libnet.Session) error {
	log.Info("procJoinTopic")
	var err error

	if len(cmd.GetArgs()) != 2 {
		err = common.SYNTAX_ERROR
	} else {
		topicName := cmd.GetArgs()[0]
		clientName := cmd.GetArgs()[1]

		clientID := session.State.(*base.SessionState).ClientID
		clientType := session.State.(*base.SessionState).ClientType

		member := mongo_store.NewMember(clientID, clientName, clientType)
		err = self.msgServer.procJoinTopic(member, topicName)
	}

	resp := protocol.NewCmdSimple(protocol.RSP_JOIN_TOPIC_CMD)

	if err != nil {
		resp.AddArg(err.Error())
	} else {
		resp.AddArg(protocol.RSP_SUCCESS)
	}
	err = session.Send(libnet.Json(resp))
	if err != nil {
		log.Error(err.Error())
	}

	return err
}

func (self *ProtoProc) procGetTopicList(cmd protocol.Cmd, session *libnet.Session) error {
	log.Info("procGetTopicList")
	var err error

	resp := protocol.NewCmdSimple(protocol.RSP_GET_TOPIC_LIST_CMD)

	clientID := session.State.(*base.SessionState).ClientID
	//clientType := session.State.(*base.SessionState).ClientType

	sessionCacheData, err := self.msgServer.sessionCache.Get(clientID)
	if sessionCacheData == nil {
		log.Warningf("Client %s not online", clientID)
		err = common.NOT_ONLINE
		goto ErrOut
	}
ErrOut:
	if err != nil {
		resp.AddArg(err.Error())
	} else {
		resp.AddArg(protocol.RSP_SUCCESS)
		resp.AddArg(strconv.Itoa(len(sessionCacheData.TopicList)))
		for _, topic := range sessionCacheData.TopicList {
			resp.AddArg(topic)
		}
	}
	err = session.Send(libnet.Json(resp))
	if err != nil {
		log.Error(err.Error())
	}

	return err
}

/*
   client -> MsgServer
       REQ_QUIT_TOPIC_CMD
       arg0: TopicName     //群组名

   MsgServer -> client
       RSP_QUIT_TOPIC_CMD
       arg0: SUCCESS/ERROR
*/
func (self *ProtoProc) procQuitTopic(cmd protocol.Cmd, session *libnet.Session) error {
	log.Info("procQuitTopic")
	var err error

	if len(cmd.GetArgs()) != 1 {
		err = common.SYNTAX_ERROR
	} else {
		topicName := cmd.GetArgs()[0]

		clientID := session.State.(*base.SessionState).ClientID

		err = self.msgServer.procQuitTopic(clientID, topicName)
	}

	resp := protocol.NewCmdSimple(protocol.RSP_QUIT_TOPIC_CMD)

	if err != nil {
		resp.AddArg(err.Error())
	} else {
		resp.AddArg(protocol.RSP_SUCCESS)
	}
	err = session.Send(libnet.Json(resp))
	if err != nil {
		log.Error(err.Error())
	}

	return err
}

/*
   通过Router转发消息(对终端开发者不可见)
   Router -> MsgServer
       ROUTE_SEND_TOPIC_MSG_CMD
       arg0: Msg           //消息内容
       arg1: TopicName     //群组名
       arg2: ClientID      //发送方用户ID
       arg3: ClientType    //发送方终端类型，是client还是device
*/
func (self *ProtoProc) procRouteTopicMsg(cmd protocol.Cmd, session *libnet.Session) error {
	log.Info("procRouteTopicMsg")
	var err error

	//send2Msg := cmd.GetArgs()[0]
	topicName := cmd.GetArgs()[1]
	//fromID := cmd.GetArgs()[2]
	//fromType := cmd.GetArgs()[3]

	// check whether the topic exist
	topicCacheData, err := self.msgServer.topicCache.Get(topicName)
	if topicCacheData == nil {
		log.Warningf("TOPIC %s not exist: %s", topicName, err.Error())
		return common.TOPIC_NOT_EXIST
	}

	cmd.ChangeCmdName(protocol.REQ_SEND_TOPIC_MSG_CMD)

	// exactly in this server, just broadcasting
	log.Warningf("topic %s has %d member(s) in this server", topicName, topicCacheData.AliveMemberNumMap[self.msgServer.cfg.LocalIP])
	for _, mID := range topicCacheData.MemberList {
		if self.msgServer.sessions[mID.ID] != nil {
			self.msgServer.sessions[mID.ID].Send(libnet.Json(cmd))
			if err != nil {
				log.Fatalln(err.Error())
			}
		}
	}

	return nil
}

/*
   发送给消息接受者的消息
   MsgServer -> device/client
       REQ_SEND_P2P_MSG_CMD
       arg0: Msg           //消息内容
       arg1: FromID        //发送方用户ID
       arg2: uuid          //MsgServer分配的消息uuid，可选，如果提供了则须IND_ACK_P2P_STATUS_CMD(ClientID, uuid)
*/
func (self *ProtoProc) procOfflineMsg(session *libnet.Session, ID string) error {
	var err error
	exist, err := self.msgServer.offlineMsgCache.IsKeyExist(ID)
	if exist.(int64) == 0 {
		return err
	} else {
		omrd, err := common.GetOfflineMsgFromOwnerName(self.msgServer.offlineMsgCache, ID)
		if err != nil {
			log.Error(err.Error())
			return err
		}
		for _, v := range omrd.MsgList {
			if v.Msg == protocol.IND_ACK_P2P_STATUS_CMD {
				resp := protocol.NewCmdSimple(protocol.IND_ACK_P2P_STATUS_CMD)
				resp.AddArg(v.Uuid)
				resp.AddArg(v.FromID) // v.FromID is status
				if self.msgServer.sessions[ID] != nil {
					self.msgServer.sessions[ID].Send(libnet.Json(resp))
					if err != nil {
						log.Error(err.Error())
						return err
					}
				}
			} else {
				resp := protocol.NewCmdSimple(protocol.REQ_SEND_P2P_MSG_CMD)
				resp.AddArg(v.Msg)
				resp.AddArg(v.FromID)
				resp.AddArg(v.Uuid)

				if self.msgServer.sessions[ID] != nil {
					self.msgServer.sessions[ID].Send(libnet.Json(resp))
					if err != nil {
						log.Error(err.Error())
						return err
					} else {
						self.procP2PAckStatus(v.FromID, v.Uuid, protocol.P2P_ACK_SENT)
					}
				}
			}
		}

		omrd.ClearMsg()
		self.msgServer.offlineMsgCache.Set(omrd)
	}

	return err
}

/*
   client -> MsgServer
       REQ_ADD_2_TOPIC_CMD
       arg0: TopicName     //群组名
       arg1: NewClientID          //用户ID
       arg2: NewClientName    //用户在Topic中的Name, 对于device, 可以是儿子/女儿

   MsgServer -> client
       RSP_ADD_2_TOPIC_CMD
       arg0: SUCCESS/FAILED
*/
func (self *ProtoProc) procAdd2Topic(cmd protocol.Cmd, session *libnet.Session) error {
	log.Info("procAdd2Topic")
	var err error

	topicName := cmd.GetArgs()[0]
	mID := cmd.GetArgs()[1]
	mName := cmd.GetArgs()[2]
	ClientID := session.State.(*base.SessionState).ClientID
	ClientType := session.State.(*base.SessionState).ClientType

	resp := protocol.NewCmdSimple(protocol.RSP_ADD_2_TOPIC_CMD)

	if len(cmd.GetArgs()) != 3 {
		err = common.SYNTAX_ERROR
	} else
	// only DEV_TYPE_CLIENT CAN create topic
	if ClientType != protocol.DEV_TYPE_CLIENT {
		err = common.DENY_ACCESS
	} else {
		// check whether the topic exist
		topicCacheData, _ := self.msgServer.topicCache.Get(topicName)
		if topicCacheData == nil {
			log.Infof("TOPIC %s not exist in CACHE", topicName)
			err = common.TOPIC_NOT_EXIST
		} else
		// only topic creater can do this
		if topicCacheData.CreaterID != ClientID {
			log.Warningf("ClientID %s is not creater of topic %s", ClientID, topicName)
			err = common.DENY_ACCESS
		} else {
			// New Member MUST be online
			sessionCacheData, _ := self.msgServer.sessionCache.Get(mID)
			if sessionCacheData == nil {
				log.Warningf("Client %s not online", mID)
				err = common.NOT_ONLINE
			} else {
				member := mongo_store.NewMember(mID, mName, sessionCacheData.ClientType)
				err = self.msgServer.procJoinTopic(member, topicName)
			}
		}
	}

	if err != nil {
		resp.AddArg(err.Error())
	} else {
		resp.AddArg(protocol.RSP_SUCCESS)
	}
	err = session.Send(libnet.Json(resp))
	if err != nil {
		log.Error(err.Error())
	}

	return err
}

func (self *ProtoProc) procLogin(cmd protocol.Cmd, session *libnet.Session) error {
	//log.Info("procLogin")
	var err error
	var uuid string
	var msgServer string

	ClientID := cmd.GetArgs()[0]
	ClientType := cmd.GetArgs()[1]
	ClientPwd := cmd.GetArgs()[2]

	// get the session cache
	sessionCacheData, err := self.gateway.sessionCache.Get(ClientID)
	if sessionCacheData != nil {
		log.Warningf("ID %s already login", ClientID)

		msgServer = sessionCacheData.MsgServerAddr
		uuid = sessionCacheData.ID
	} else {
		// choose msg server and allocate UUID
		msgServer = self.procGetMinLoadMsgServer()
		uuid = common.NewV4().String()
		// get the session store to check whether registered
		sessionStoreData, _ := self.gateway.mongoStore.GetSessionFromCid(ClientID)
		if sessionStoreData == nil {
			log.Warningf("ID %s not registered", ClientID)

			// for store data
			sessionStoreData = mongo_store.NewSessionStoreData(ClientID, ClientPwd, ClientType)
			log.Info(sessionStoreData)
			common.StoreData(self.gateway.mongoStore, sessionStoreData)
		}
		// for cache data, MsgServer MUST update local & remote addr.
		sessionCacheData = redis_store.NewSessionCacheData(sessionStoreData, session.Conn().RemoteAddr().String(), msgServer, uuid)
		log.Info(sessionCacheData)
		common.StoreData(self.gateway.sessionCache, sessionCacheData)
	}
	//
	resp := protocol.NewCmdSimple(protocol.RSP_LOGIN_CMD)
	resp.AddArg(protocol.RSP_SUCCESS)
	resp.AddArg(uuid)
	resp.AddArg(msgServer)

	log.Info("Resp | ", resp)

	if session != nil {
		err = session.Send(libnet.Json(resp))
		if err != nil {
			log.Error(err.Error())
		}
		session.Close()
		log.Info("client ", session.Conn().RemoteAddr().String(), " | close")
	}
	return nil
}

/*
   MsgServer -> Router
       REQ_SEND_P2P_MSG_CMD
       arg0: Sent2ID       //接收方用户ID
       arg1: Msg           //消息内容
       arg2: FromID        //发送方用户ID
       arg3: uuid          //MsgServer分配的消息uuid
*/
func (self *ProtoProc) procSendMsgP2P(cmd protocol.Cmd, session *libnet.Session) error {
	log.Info("procSendMsgP2P")
	var err error
	send2ID := cmd.GetArgs()[0]
	send2Msg := cmd.GetArgs()[1]
	log.Info(send2Msg)

	self.Router.readMutex.Lock()
	defer self.Router.readMutex.Unlock()
	cacheSession, err := self.Router.sessionCache.Get(send2ID)
	if cacheSession == nil || cacheSession.Alive == false {
		storeSession, err := self.Router.mongoStore.GetSessionFromCid(send2ID)
		if err != nil {
			log.Warningf("ID %s not registered, msg dropped", send2ID)
			return err
		}
		log.Info(storeSession)
		log.Warningf("ID registered but offline: %s", send2ID)

		cmd.ChangeCmdName(protocol.ROUTE_SEND_P2P_MSG_CMD)
		//ms := self.Router.cfg.MsgServerList[0]
		ms := session.Conn().RemoteAddr().String()
		err = self.Router.msgServerClientMap[ms].Send(libnet.Json(cmd))
		if err != nil {
			log.Error("error:", err)
			return err
		}
	} else {
		log.Info(cacheSession.MsgServerAddr)

		cmd.ChangeCmdName(protocol.ROUTE_SEND_P2P_MSG_CMD)
		log.Info(cmd)
		err = self.Router.msgServerClientMap[cacheSession.MsgServerAddr].Send(libnet.Json(cmd))
		if err != nil {
			log.Error("error:", err)
			return err
		}
	}

	return nil
}

/*
   client -> MsgServer
       REQ_KICK_TOPIC_CMD
       arg0: TopicName     //群组名
       arg1: NewClientID   //待移除的成员用户ID

   MsgServer -> client
       RSP_KICK_TOPIC_CMD
       arg0: SUCCESS/FAILED
*/
func (self *ProtoProc) procKickTopic(cmd protocol.Cmd, session *libnet.Session) error {
	log.Info("procKickTopic")
	var err error
	var topicCacheData *redis_store.TopicCacheData

	topicName := cmd.GetArgs()[0]
	mID := cmd.GetArgs()[1]

	ClientID := session.State.(*base.SessionState).ClientID
	ClientType := session.State.(*base.SessionState).ClientType

	resp := protocol.NewCmdSimple(protocol.RSP_KICK_TOPIC_CMD)

	if len(cmd.GetArgs()) != 2 {
		err = common.SYNTAX_ERROR
		goto ErrOut
	}

	// only DEV_TYPE_CLIENT CAN do this
	if ClientType != protocol.DEV_TYPE_CLIENT {
		err = common.DENY_ACCESS
		goto ErrOut
	}

	// check whether the topic exist
	topicCacheData, err = self.msgServer.topicCache.Get(topicName)
	if topicCacheData == nil {
		log.Warningf("TOPIC %s not exist", topicName)
		err = common.TOPIC_NOT_EXIST
	} else
	// only topic creater can do this
	if topicCacheData.CreaterID != ClientID {
		log.Warningf("ClientID %s is not creater of topic %s", ClientID, topicName)
		err = common.DENY_ACCESS
	} else {
		err = self.msgServer.procQuitTopic(mID, topicName)
	}

ErrOut:
	if err != nil {
		resp.AddArg(err.Error())
	} else {
		resp.AddArg(protocol.RSP_SUCCESS)
	}
	err = session.Send(libnet.Json(resp))
	if err != nil {
		log.Error(err.Error())
	}

	return err
}

func (self *HeartBeat) Beat() {
	timer := time.NewTicker(self.timeout * time.Second)
	//ttl := time.After(self.expire * time.Second)
	for {
		select {
		case <-timer.C:
			go func() {
				cmd := protocol.NewCmdSimple(protocol.SEND_PING_CMD)
				cmd.AddArg(protocol.PING)
				err := self.session.Send(libnet.Json(cmd))
				if err != nil {
					log.Error(err.Error())
				}
			}()
			//case <-ttl:
			//break
		}
	}
}

func (self *ProtoProc) procGetTopicMember(cmd protocol.Cmd, session *libnet.Session) error {
	log.Info("procGetTopicMember")
	var err error
	var topicCacheData *redis_store.TopicCacheData

	resp := protocol.NewCmdSimple(protocol.RSP_GET_TOPIC_MEMBER_CMD)
	if len(cmd.GetArgs()) != 1 {
		err = common.SYNTAX_ERROR
	} else {
		topicName := cmd.GetArgs()[0]

		clientID := session.State.(*base.SessionState).ClientID
		//clientType := session.State.(*base.SessionState).ClientType

		// check whether the topic exist
		topicCacheData, err = self.msgServer.topicCache.Get(topicName)
		if topicCacheData == nil {
			log.Warningf("TOPIC %s not exist", topicName)
			err = common.TOPIC_NOT_EXIST
		} else if topicCacheData.MemberExist(clientID) == false {
			log.Warningf("%s not the member of topic %d", clientID, topicName)
			err = common.DENY_ACCESS
		}

	}

	if err != nil {
		resp.AddArg(err.Error())
	} else {
		resp.AddArg(protocol.RSP_SUCCESS)
		resp.AddArg(strconv.Itoa(len(topicCacheData.MemberList)))
		for _, member := range topicCacheData.MemberList {
			resp.AddArg(member.ID)
			resp.AddArg(member.Name)
		}
	}
	err = session.Send(libnet.Json(resp))
	if err != nil {
		log.Error(err.Error())
	}

	return err
}

func (self *ProtoProc) procLogout(cmd protocol.Cmd, session *libnet.Session) error {
	log.Info("procLogout")
	var err error

	ClientID := session.State.(*base.SessionState).ClientID

	resp := protocol.NewCmdSimple(protocol.RSP_LOGOUT_CMD)
	resp.AddArg(protocol.RSP_SUCCESS)

	err = session.Send(libnet.Json(resp))
	if err != nil {
		log.Error(err.Error())
	}

	self.msgServer.procOffline(ClientID)

	self.msgServer.sessionCache.Delete(ClientID)

	return err
}

func (self *MonitorBeat) Beat(c *libnet.Channel, data *protocol.CmdMonitor) {
	timer := time.NewTicker(self.timeout * time.Second)
	//ttl := time.After(self.expire * time.Second)
	//for {
	select {
	case <-timer.C:
		go func() {
			_, err := c.Broadcast(libnet.Json(data))
			if err != nil {
				log.Error(err.Error())
				//return err
			}
		}()
		//case <-ttl:
		//break
	}
	//}

	//return nil
}