public Task WriteAsync(byte[] data)
{
Console.WriteLine(BitConverter.ToString(data));
return(Task.Run(() => { ReceivedData.Add(data); }));
}
protected override void Run()
{
Log.Debug("Started receiver");
// Only request all packets five times
while (true)
{
if (Token.IsCancellationRequested)
{
Log.Debug("Received request to stop");
break;
}
foreach (var data in NeededData)
{
var chunkReq = new ChunkRequest(Guid.NewGuid(), ConversationId, MessageCount, data, FileInfo.ContentHash, ChunkSize);
RaiseSendMessageEvent(chunkReq);
MessageCount++;
}
Thread.Sleep(250);
while (IncomingMessages.Count > 0)
{
Message mesg;
if (IncomingMessages.TryDequeue(out mesg))
{
if (mesg.MessageId == MessageType.CHUNK_REPLY)
{
var chunkReply = (ChunkReply)mesg;
if (NeededData.Contains(chunkReply.Index))
{
var provider = new RSACryptoServiceProvider();
provider.ImportCspBlob(FileInfo.PublicKeyInfo);
if (MessageVerifier.CheckSignature(chunkReply.ChunkData, chunkReply.Signature, provider.ExportParameters(false)))
{
DataStore[chunkReply.Index] = chunkReply.ChunkData;
NeededData.Remove(chunkReply.Index);
ReceivedData.Add(chunkReply.Index);
if (NeededData.Count == 0)
{
Log.Info(string.Format("Conversation complete; Downloaded {0} packets", DataStore.Count));
var ack = new Acknowledge(Guid.NewGuid(), ConversationId, mesg.MessageCount + 1, "Download complete");
CancelSource.Cancel();
RaiseSendMessageEvent(ack);
break;
}
}
else
{
Log.Warn("Message signature is NOT verfied");
}
}
}
}
}
Thread.Sleep(250);
}
RaiseEndConversationEvent();
}