// read from the web socket, copying to the pty master
// messages are expected to be text and base64 encoded
func sendConnectionInputToPty(conn *websocket.Conn, reader io.ReadCloser, f *os.File, finalizer *ReadWriteRoutingFinalizer) {
defer closeReader(reader, f, finalizer)
for {
mt, payload, err := conn.ReadMessage()
if err != nil {
if !isNormalWsError(err) {
log.Printf("conn.ReadMessage failed: %s\n", err)
}
return
}
switch mt {
case websocket.BinaryMessage:
log.Printf("Ignoring binary message: %q\n", payload)
case websocket.TextMessage:
var msg WebSocketMessage
if err := json.Unmarshal(payload, &msg); err != nil {
log.Printf("Invalid message %s\n", err)
continue
}
if errMsg := handleMessage(msg, f); errMsg != nil {
log.Printf(errMsg.Error())
return
}
default:
log.Printf("Invalid websocket message type %d\n", mt)
return
}
}
}
// Reads the message from the websocket connection until error is received,
// returns the channel which should be used for reading such messages.
func readMessages(conn *websocket.Conn) chan *WsMessage {
messagesChan := make(chan *WsMessage)
go func() {
for {
_, bytes, err := conn.ReadMessage()
messagesChan <- &WsMessage{err: err, bytes: bytes}
if err != nil {
close(messagesChan)
break
}
}
}()
return messagesChan
}