private Tuple <FtpCommand, IFtpCommandBase, bool> FindCommandHandler(FtpCommand command)
{
if (!CommandHandlers.TryGetValue(command.Name, out var handler))
{
return(null);
}
if (!string.IsNullOrWhiteSpace(command.Argument) && handler is IFtpCommandHandlerExtensionHost extensionHost)
{
var extensionCommand = FtpCommand.Parse(command.Argument);
if (extensionHost.Extensions.TryGetValue(extensionCommand.Name, out var extension))
{
return(Tuple.Create(extensionCommand, (IFtpCommandBase)extension, extension.IsLoginRequired ?? handler.IsLoginRequired));
}
}
return(Tuple.Create(command, (IFtpCommandBase)handler, handler.IsLoginRequired));
}
private Tuple <FtpCommand, FtpCommandHandlerBase, bool> FindCommandHandler(FtpCommand command)
{
FtpCommandHandler handler;
if (!CommandHandlers.TryGetValue(command.Name, out handler))
{
return(null);
}
var extensionHost = handler as IFtpCommandHandlerExtensionHost;
if (!string.IsNullOrWhiteSpace(command.Argument) && extensionHost != null)
{
var extensionCommand = FtpCommand.Parse(command.Argument);
FtpCommandHandlerExtension extension;
if (extensionHost.Extensions.TryGetValue(extensionCommand.Name, out extension))
{
return(Tuple.Create(extensionCommand, (FtpCommandHandlerBase)extension, extension.IsLoginRequired ?? handler.IsLoginRequired));
}
}
return(Tuple.Create(command, (FtpCommandHandlerBase)handler, handler.IsLoginRequired));
}
private FtpCommand CreateFtpCommand(byte[] command)
{
var message = Encoding.GetString(command, 0, command.Length);
return(FtpCommand.Parse(message));
}