// Run() implements the rack.Middleware interface
func (this Controller) Run(vars map[string]interface{}, next func()) {
r := (httper.V)(vars).GetRequest()
if strings.ToLower(r.Header.Get("Upgrade")) != "websocket" {
//if it wasn't a websocket request, ignore it
next()
} else {
var handler websocket.Handler = func(ws *websocket.Conn) {
vars[websocketIndex] = ws
this.onOpen.Run(vars, func() {})
defer func() {
this.onClose.Run(vars, func() {})
ws.Close()
}()
for {
//Message Loop
//Get the message from the client
message := this.onStorage()
err := this.messageType.Receive(ws, message)
//If there are no messages, we're done here
if err != nil {
if err != io.EOF {
(logger.V)(vars).Println(err)
continue
} else {
break
}
}
//respond to the message in a goroutine
go func() {
vars[messageIndex] = reflect.Indirect(reflect.ValueOf(message)).Interface()
this.onMessage.Run(vars, func() {})
//If we have a response, send it back
response := vars[responseIndex]
delete(vars, responseIndex)
if response != nil {
this.messageType.Send(ws, response)
}
}()
}
}
w := (httper.V)(vars).BlankResponse()
handler.ServeHTTP(w, r)
w.Save()
}
}
func upgradeWebsocketHandler(wsHandler websocket.Handler) interface{} {
return func(ctx *web.Context) {
wsHandler.ServeHTTP(ctx.ResponseWriter, ctx.Request)
}
}