public async Task Start()
{
_socket = new TcpClient();
VerboseLog("Starting connection to " + _address + ":" + _port);
_socket.Connect(new IPEndPoint(_address, _port));
_stream = _socket.GetStream();
_file = new SegmentedFile(System.IO.File.OpenRead(_path));
long pos;
if (TryLoadState(out pos))
{
_file.Position = pos;
}
byte[] fileInfo = new byte[1 + 4 + 8 + 8];
fileInfo[0] = (byte)PacketType.SetFileInfo;
VerboseLog("Sending file with length " + _file.Length);
Array.Copy(BitConverter.GetBytes(_code), 0, fileInfo, 1, 4);
Array.Copy(BitConverter.GetBytes(_file.Length), 0, fileInfo, 5, 8);
Array.Copy(BitConverter.GetBytes(_file.Position), 0, fileInfo, 13, 8);
VerboseLog("Sending welcome packet: " + string.Join(", ", fileInfo));
await _stream.WriteAsync(fileInfo, 0, fileInfo.Length);
}
public void Update(SegmentedFile file)
{
if (file == null)
{
return;
}
StringBuilder sb = new StringBuilder();
sb.Append('\r');
double percentage = file.Position / (double)file.Length;
sb.Append(string.Format("{0:P0}", percentage).PadRight(10));
sb.Append('[');
int spaceForBar = Console.WindowWidth - (10 + 2 + 16 + 12 + 16);
int fill = (int)(spaceForBar * percentage);
for (int i = 0; i < fill; i++)
{
sb.Append('=');
}
for (int i = 0; i < spaceForBar - fill - 1; i++)
{
sb.Append(' ');
}
sb.Append("] ");
sb.Append(string.Format("{0}", HumanifyBytes(file.Position)).PadRight(16));
if (DateTime.Now.Subtract(_lastCheck).TotalMilliseconds > 1000)
{
_lastCheck = DateTime.Now;
long delta = file.Position - _dataTransferredThen;
sb.Append(string.Format("{0}/s", HumanifyBytes(delta)).PadRight(12));
if (delta > 0)
{
TimeSpan eta = TimeSpan.FromSeconds((file.Length - file.Position) / delta);
sb.Append(string.Format("ETA {0}", eta).PadRight(16));
}
_dataTransferredThen = file.Position;
}
Console.Write(sb.ToString());
}
private async Task AcceptClient()
{
TcpClient cl = await _socket.AcceptTcpClientAsync();
if (_client != null && IsClientConnected())
{
cl.Close();
return;
}
byte[] buffer = new byte[1 + 4 + 8 + 8];
await cl.GetStream().ReadAsync(buffer, 0, buffer.Length);
if (buffer[0] == (byte)PacketType.SetFileInfo)
{
int pinCode = BitConverter.ToInt32(buffer, 1);
long length = BitConverter.ToInt64(buffer, 5);
long position = BitConverter.ToInt64(buffer, 13);
VerboseLog("New connection from " + cl.Client.RemoteEndPoint);
VerboseLog($"File len: {length} with starting pos {position}");
VerboseLog("Payload: " + string.Join(",", buffer));
if (pinCode == _password)
{
_client = cl;
_clientStream = cl.GetStream();
if (_file == null)
{
_file = new SegmentedFile(System.IO.File.OpenWrite(_path));
}
_file.Position = position;
_file.Length = length;
_file.BytesTransferred = 0;
_file.BytesToTransfer = _file.Length - position;
VerboseLog("Connection successful!");
}
}
}