// Handle command func Handle(v resp.Array, ex *CommandExtras) error { ex.Buffer.Truncate(0) // Truncate all data in the buffer if len(v) == 0 { log6.Debug("Command handler, len of the input array is 0") return resp.NewError(ErrFmtNoCommand).WriteTo(ex.Buffer) } args := v.ToArgs() //log6.Debug("Command handling:%v", humanArgs(args)) cmd := strings.ToLower(args[0].String()) a, err := findCmdFunc(cmd) if err != nil { log6.Debug("Command handler, cannt found command: %v", cmd) return resp.NewError(ErrFmtUnknownCommand, cmd).WriteTo(ex.Buffer) } if a.c != 0 && len(v) != a.c { //a.c = 0 means to check the number in f return resp.NewError(ErrFmtWrongNumberArgument, cmd).WriteTo(ex.Buffer) } if !ex.IsConnAuthed && ex.Password != "" && cmd != "auth" { return resp.NewError(ErrAuthed).WriteTo(ex.Buffer) } return a.f(args[1:], ex) }