package controller import ( "encoding/json" "github.com/gin-gonic/gin" "github.com/gorilla/websocket" "github.com/taoshihan1991/imaptool/models" "log" "sort" "time" ) type vistor struct{ conn *websocket.Conn name string id string avator string to_id string } type Message struct{ conn *websocket.Conn c *gin.Context content []byte messageType int } var clientList = make(map[string]*vistor) var kefuList = make(map[string][]*websocket.Conn) var message = make(chan *Message) type TypeMessage struct { Type interface{} `json:"type"` Data interface{} `json:"data"` } type ClientMessage struct { Name string `json:"name"` Avator string `json:"avator"` Id string `json:"id"` Group string `json:"group"` Time string `json:"time"` ToId string `json:"to_id"` Content string `json:"content"` City string `json:"city"` ClientIp string `json:"client_ip"` Refer string `json:"refer"` } //定时检测客户端是否在线 func init() { upgrader=websocket.Upgrader{ ReadBufferSize: 1024, WriteBufferSize: 1024, } //go sendPingUpdateStatus() go singleBroadcaster() //go sendPingOnlineUsers() sendPingToClient() } func NewChatServer(c *gin.Context){ conn,err:=upgrader.Upgrade(c.Writer,c.Request,nil) if err != nil { log.Print("upgrade:", err) return } for { //接受消息 var receive []byte var recevString string messageType, receive, err := conn.ReadMessage() if err != nil { for uid,visitor :=range clientList{ if visitor.conn==conn{ log.Println("删除用户",uid) delete(clientList,uid) models.UpdateVisitorStatus(uid,0) userInfo := make(map[string]string) userInfo["uid"] = uid userInfo["name"] = visitor.name msg := TypeMessage{ Type: "userOffline", Data: userInfo, } str, _ := json.Marshal(msg) kefuConns:=kefuList[visitor.to_id] if kefuConns!=nil{ for _,kefuConn:=range kefuConns{ kefuConn.WriteMessage(websocket.TextMessage,str) } } sendPingOnlineUsers() } } log.Println(err) return } recevString=string(receive) log.Println("客户端:", recevString) message<-&Message{ conn:conn, content: receive, c:c, messageType:messageType, } } } //发送给客户客服上线 func SendKefuOnline(clientMsg ClientMessage, conn *websocket.Conn) { sendMsg := TypeMessage{ Type: "kfOnline", Data: ClientMessage{ Name: clientMsg.Name, Avator: clientMsg.Avator, Id: clientMsg.Id, Group: clientMsg.Group, Time: time.Now().Format("2006-01-02 15:04:05"), Content: "客服上线", }, } jsonStrByte, _ := json.Marshal(sendMsg) conn.WriteMessage(websocket.TextMessage,jsonStrByte) } //定时给客户端发送消息判断客户端是否在线 func sendPingToClient() { msg := TypeMessage{ Type: "ping", } go func() { for { str, _ := json.Marshal(msg) for uid, user := range clientList { err := user.conn.WriteMessage(websocket.TextMessage,str) if err != nil { delete(clientList, uid) models.UpdateVisitorStatus(uid,0) } } for kefuId, kfConns := range kefuList { var newkfConns =make([]*websocket.Conn,0) for _,kefuConn:=range kfConns{ if(kefuConn==nil){ continue } err:=kefuConn.WriteMessage(websocket.TextMessage,str) if err == nil { newkfConns=append(newkfConns,kefuConn) } } if newkfConns == nil { delete(kefuList, kefuId) }else{ kefuList[kefuId]=newkfConns } } time.Sleep(15 * time.Second) } }() } //定时给更新数据库状态 func sendPingUpdateStatus() { for { visitors:=models.FindVisitorsOnline() for _,visitor :=range visitors{ _,ok:=clientList[visitor.VisitorId] if !ok{ models.UpdateVisitorStatus(visitor.VisitorId,0) } } time.Sleep(20 * time.Second) } } //定时推送当前在线用户 func sendPingOnlineUsers() { var visitorIds []string for visitorId, _ := range clientList { visitorIds=append(visitorIds,visitorId) } sort.Strings(visitorIds) for kefuId, kfConns := range kefuList { result := make([]map[string]string, 0) for _,visitorId:=range visitorIds{ user:=clientList[visitorId] userInfo := make(map[string]string) userInfo["uid"] = user.id userInfo["username"] = user.name userInfo["avator"] = user.avator if user.to_id==kefuId{ result = append(result, userInfo) } } msg := TypeMessage{ Type: "allUsers", Data: result, } str, _ := json.Marshal(msg) var newkfConns =make([]*websocket.Conn,0) for _,kefuConn:=range kfConns{ err:=kefuConn.WriteMessage(websocket.TextMessage,str) if err == nil { newkfConns=append(newkfConns,kefuConn) } } if len(newkfConns) == 0 { delete(kefuList, kefuId) }else{ kefuList[kefuId]=newkfConns } } } //后端广播发送消息 func singleBroadcaster(){ for { message:=<-message //log.Println("debug:",message) var typeMsg TypeMessage var clientMsg ClientMessage json.Unmarshal(message.content, &typeMsg) conn:=message.conn if typeMsg.Type == nil || typeMsg.Data == nil { continue } msgType := typeMsg.Type.(string) msgData, _ := json.Marshal(typeMsg.Data) switch msgType { //用户上线 case "userInit": json.Unmarshal(msgData, &clientMsg) //用户id对应的连接 user:=&vistor{ conn:conn, name: clientMsg.Name, avator: clientMsg.Avator, id:clientMsg.Id, to_id:clientMsg.ToId, } clientList[clientMsg.Id] = user //插入数据表 models.CreateVisitor(clientMsg.Name,clientMsg.Avator,message.c.ClientIP(),clientMsg.ToId,clientMsg.Id,clientMsg.Refer,clientMsg.City,clientMsg.ClientIp) userInfo := make(map[string]string) userInfo["uid"] = user.id userInfo["username"] = user.name userInfo["avator"] = user.avator msg := TypeMessage{ Type: "userOnline", Data: userInfo, } str, _ := json.Marshal(msg) kefuConns:=kefuList[user.to_id] if kefuConns!=nil{ for k,kefuConn:=range kefuConns{ log.Println(k,"xxxxxxxx") kefuConn.WriteMessage(websocket.TextMessage,str) } } sendPingOnlineUsers() //客服上线 case "kfOnline": json.Unmarshal(msgData, &clientMsg) //客服id对应的连接 var newKefuConns =[]*websocket.Conn{conn} kefuConns:=kefuList[clientMsg.Id] if kefuConns!=nil{ newKefuConns=append(newKefuConns,kefuConns...) } log.Println(newKefuConns) kefuList[clientMsg.Id] = newKefuConns //发送给客户 if len(clientList) == 0 { continue } sendPingOnlineUsers() //客服接手 case "kfConnect": json.Unmarshal(msgData, &clientMsg) visitor,ok := clientList[clientMsg.ToId] if visitor==nil||!ok{ continue } SendKefuOnline(clientMsg, visitor.conn) //心跳 case "ping": msg := TypeMessage{ Type: "pong", } str, _ := json.Marshal(msg) conn.WriteMessage(websocket.TextMessage,str) } } }