//Dictionary<uint, DataPacket> received_packets;
//DataPacket[] packets;
private void ReceivePacket(DataPacket packet)
{
////je to packet, ktery ocekavam
///
if (ReceivedPackets[packet.Number] is null)
{
ReceivedPackets[packet.Number] = packet;
UpdateAwaitedNum();
}
else
{
//return;
}
WriteStatus(AwaitedPacketNum, TotalPacketCount);
byte[] resp = MessageConstructor.GetDataReceived(packet.Number, AwaitedPacketNum);
Client.Send(resp, resp.Length);
}
private void OnClientDataReceived(object sender, DataReceivedEventArgs e)
{
if (!MessageConstructor.ValidateMessage(e.Data))
{
if (StopAndWait)
{
byte[] msg = MessageConstructor.GetDataReceived(uint.MinValue, uint.MaxValue);
Client.Send(msg, msg.Length);
}
return;
}
if (MessageConstructor.IsHandshake(e.Data))
{
Connect(BitConverter.ToUInt32(e.Data, 1), BitConverter.ToUInt32(e.Data, 1 + sizeof(int)), e.EndPoint);
return;
}
if (IsTransfering && MessageConstructor.IsFileData(e.Data))
{
ReceivePacket(MessageConstructor.GetPacket(e.Data));
return;
}
if (MessageConstructor.IsFileMeta(e.Data))
{
TotalPacketCount = BitConverter.ToUInt32(e.Data, 1 + sizeof(long));
string fn = Encoding.ASCII.GetString(e.Data, 1 + sizeof(long) + sizeof(uint), e.Data.Length - 1 - sizeof(long) - sizeof(uint) - sizeof(uint));
PrepareFile(fn);
ReceivedPackets = new DataPacket[TotalPacketCount];
Console.WriteLine($"Receiving file '{fn}', total of {TotalPacketCount} packets.");
WriteStatus(0, TotalPacketCount, false);
Client.Send(e.Data, e.Data.Length);
//Client.ErrorRate = 0.001;
//Client.DropRate = 0.01;
}
if (IsTransfering && MessageConstructor.IsFileEnd(e.Data))
{
WriteFile();
uint hash = BitConverter.ToUInt32(e.Data, 1);
uint computed = MessageConstructor.GetFileHash(FileName);
if (hash == computed)
{
FileReceived?.Invoke(this, new FileReceivedEventArgs()
{
FileName = FileName
});
_is_transfering = false;
}
else
{
Console.WriteLine("Something is wrong, received different hash.");
_is_transfering = false;
}
}
}