/*
device/client -> MsgServer -> Router
REQ_SEND_TOPIC_MSG_CMD
arg0: Msg //消息内容
arg1: TopicName //群组名, device无须提供
返回给消息发送者的消息
MsgServer -> device/client
RSP_SEND_TOPIC_MSG_CMD
arg0: SUCCESS/FAILED
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
发送给消息接受者的消息
MsgServer -> device/client
REQ_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) procSendTopicMsg(cmd protocol.Cmd, session *libnet.Session) error {
log.Info("procSendTopicMsg")
var err error
var topicName string
var topicCacheData *redis_store.TopicCacheData
var sessionCacheData *redis_store.SessionCacheData
//var sessionStoreData *mongo_store.SessionStoreData
msg := cmd.GetArgs()[0]
resp := protocol.NewCmdSimple(protocol.RSP_SEND_TOPIC_MSG_CMD)
ClientID := session.State.(*base.SessionState).ClientID
ClientType := session.State.(*base.SessionState).ClientType
if ClientType == protocol.DEV_TYPE_CLIENT {
if len(cmd.GetArgs()) != 2 {
err = common.SYNTAX_ERROR
goto ErrOut
}
} else if len(cmd.GetArgs()) != 1 {
err = common.SYNTAX_ERROR
goto ErrOut
}
// get session cache
sessionCacheData, err = self.msgServer.sessionCache.Get(ClientID)
if sessionCacheData == nil {
log.Errorf("ID %s cache missing", ClientID)
err = common.NOT_ONLINE
goto ErrOut
} else if ClientType == protocol.DEV_TYPE_WATCH {
topicName = sessionCacheData.GetTopics()[0]
} else {
topicName = cmd.GetArgs()[1]
}
// 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 {
topic_msg_resp := protocol.NewCmdSimple(cmd.GetCmdName())
topic_msg_resp.AddArg(msg)
topic_msg_resp.AddArg(topicName)
topic_msg_resp.AddArg(ClientID)
topic_msg_resp.AddArg(ClientType)
if topicCacheData.AliveMemberNumMap[self.msgServer.cfg.LocalIP] > 1 {
// exactly in this server, just broadcasting
topic_msg_resp.ChangeCmdName(protocol.IND_SEND_TOPIC_MSG_CMD)
log.Warningf("topic %s has %d member(s) in this server", topicName, topicCacheData.AliveMemberNumMap[self.msgServer.cfg.LocalIP])
for _, mID := range topicCacheData.MemberList {
if mID.ID != ClientID && self.msgServer.sessions[mID.ID] != nil {
self.msgServer.sessions[mID.ID].Send(libnet.Json(topic_msg_resp))
if err != nil {
log.Fatalln(err.Error())
}
}
}
}
if self.msgServer.channels[protocol.SYSCTRL_SEND] != nil {
//topic_msg_resp.ChangeCmdName(protocol.ROUTE_SEND_TOPIC_MSG_CMD)
topic_msg_resp.ChangeCmdName(protocol.REQ_SEND_TOPIC_MSG_CMD)
for ip, num := range topicCacheData.AliveMemberNumMap {
if num > 0 {
log.Warningf("topic %s has %d member(s) in ip %s", topicName, num, ip)
if ip != self.msgServer.cfg.LocalIP {
// not in this server, routing it
_, err = self.msgServer.channels[protocol.SYSCTRL_SEND].Channel.Broadcast(libnet.Json(topic_msg_resp))
if err != nil {
log.Error(err.Error())
}
break
}
}
}
}
}
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 *MsgServer) procQuitTopic(clientID string, topicName string) error {
log.Info("procQuitTopic")
var err error
var topicCacheData *redis_store.TopicCacheData
var sessionCacheData *redis_store.SessionCacheData
var sessionStoreData *mongo_store.SessionStoreData
// check whether the topic exist
topicCacheData, err = self.topicCache.Get(topicName)
if topicCacheData == nil {
log.Warningf("TOPIC %s not exist", topicName)
return common.TOPIC_NOT_EXIST
}
if !topicCacheData.MemberExist(clientID) {
log.Warningf("member %s is not in topic %s", clientID, topicName)
return common.NOT_MEMBER
}
// update topic cache and store
topicCacheData.RemoveMember(clientID)
err = self.topicCache.Set(topicCacheData)
if err != nil {
log.Error(err.Error())
return err
}
log.Infof("member %s removed from topic CACHE %s", clientID, topicName)
err = self.mongoStore.Set(topicCacheData.TopicStoreData)
if err != nil {
log.Error(err.Error())
return err
}
log.Infof("member %s removed from topic STORE %s", clientID, topicName)
// update session cache and store
sessionCacheData, err = self.sessionCache.Get(clientID)
if sessionCacheData != nil {
log.Infof("remove topic %s from Client CACHE %s", topicName, clientID)
sessionCacheData.RemoveTopic(topicName)
err = self.sessionCache.Set(sessionCacheData)
if err != nil {
log.Error(err.Error())
return err
}
log.Infof("topic %s removed from Client CACHE %s", topicName, clientID)
err = self.mongoStore.Set(sessionCacheData.SessionStoreData)
if err != nil {
log.Error(err.Error())
return err
}
log.Infof("topic %s removed from Client STORE %s", topicName, clientID)
if sessionCacheData.Alive {
// update AliveMemberNumMap[server]
if v, ok := topicCacheData.AliveMemberNumMap[sessionCacheData.MsgServerAddr]; ok {
if v > 0 {
topicCacheData.AliveMemberNumMap[sessionCacheData.MsgServerAddr] = v - 1
} else {
topicCacheData.AliveMemberNumMap[sessionCacheData.MsgServerAddr] = 0
}
self.topicCache.Set(topicCacheData)
}
}
} else {
sessionStoreData, err = self.mongoStore.GetSessionFromCid(clientID)
if sessionStoreData == nil {
log.Warningf("ID %s not registered in STORE", clientID)
} else {
log.Infof("remove topic %s from Client STORE %s", topicName, clientID)
sessionStoreData.RemoveTopic(topicName)
err = self.mongoStore.Set(sessionStoreData)
if err != nil {
log.Error(err.Error())
return err
}
log.Infof("topic %s removed from Client STORE %s", topicName, clientID)
}
}
return nil
}
