TerraOceanPlugin/GoBot/server/hub.go

package server

import (
	"fmt"
	"strings"

	"github.com/gorilla/websocket"
)

var clients = make(map[*websocket.Conn]bool)
var connectedUsers = make(map[string]bool)

func newSession(who *websocket.Conn) {
	clients[who] = true
}

func disconnectSession(who *websocket.Conn) {
	delete(clients, who)
}

func handleIncomingMessage(who *websocket.Conn, msg string) {
	message := strings.SplitN(msg, " ", 2)
	switch message[0] {
	case "query":
		if len(message) < 2 {
			return
		}
		if !connectedUsers[message[1]] {
			who.WriteMessage(websocket.TextMessage, []byte("leave "+message[1]))
		}
	default:
		fmt.Println("Unknown message:" + msg)
	}
}

func broadcast(message string) {
	for k, _ := range clients {
		k.WriteMessage(websocket.TextMessage, []byte(message))
	}
}

func ConnectUser(mcUsername string) {
	connectedUsers[mcUsername] = true
}

func DisconnectUser(mcUsername string) {
	delete(connectedUsers, mcUsername)
}

func RequestSync() {
	broadcast("sync")
}