private bool SendFileChunk(UDPDataChunk chunk)
{
var serialized = chunk.Serialize();
var encoded = Encoding.ASCII.GetBytes(serialized);
socket.SendTo(encoded, sendingEp);
var result = listener.Receive(ref receivingEp);
var hashReceived = Encoding.ASCII.GetString(result, 0, result.Length);
long longResult;
long.TryParse(hashReceived, out longResult);
Console.WriteLine($"{chunk.HashSumChunk} == {longResult}");
return(chunk.HashSumChunk == longResult);
}
private void HandleMessage(UDPDataChunk chunk)
{
var message = Encoding.ASCII.GetString(chunk.Data, 0, chunk.Data.Length);
Console.WriteLine($"Received message: {message}");
if (message.Contains("DOWNLOAD") || message.Contains("UPLOAD"))
{
var split = message.Split(':');
previousMessage = split[0];
previousFileName = split[1];
socket.SendTo(Encoding.ASCII.GetBytes(message), sendingEp);
return;
}
string dataBack = "";
switch (message)
{
case "CLOCK":
{
dataBack = DateTime.Now.ToLongDateString(); break;
}
case "ECHO":
{
dataBack = previousMessage;
break;
}
case "CLOSE":
{
this.socket.Close();
break;
}
case "SAVE":
{
this.SaveFile();
break;
}
default: dataBack = message; break;
}
socket.SendTo(Encoding.ASCII.GetBytes(dataBack), sendingEp);
previousMessage = message;
}
private void HandleFile(UDPDataChunk chunk)
{
if (filechunks.Any(x => x.NumberOfChunk == chunk.NumberOfChunk))
{
var index = filechunks.FindIndex(x => x.NumberOfChunk == chunk.NumberOfChunk);
filechunks[index] = chunk;
}
else
{
filechunks.Add(chunk);
}
var backMessage = Encoding.ASCII.GetBytes(chunk.HashSumChunk.ToString());
var res = DateTime.Now.Second;
if (chunk.HashSumChunk % res == 0)
{
backMessage = Encoding.ASCII.GetBytes("35243642");
}
socket.SendTo(backMessage, sendingEp);
}