private void OnDataChannelMessage(RTCDataChannel dc, DataChannelPayloadProtocols protocol, byte[] data)
{
if (protocol == DataChannelPayloadProtocols.WebRTC_Binary)
{
if (data != null)
{
_incomingQueue.BlockEnqueue(data);
}
}
else
{
Logger.LogWarning("None binary message received on the data channel.");
}
}
/// <summary>
/// Event handler for an SCTP data chunk being received for this data channel.
/// </summary>
internal void GotData(ushort streamID, ushort streamSeqNum, uint ppID, byte[] data)
{
//logger.LogTrace($"WebRTC data channel GotData stream ID {streamID}, stream seqnum {streamSeqNum}, ppid {ppID}, label {label}.");
// If the ppID is not recognised default to binary.
DataChannelPayloadProtocols payloadType = DataChannelPayloadProtocols.WebRTC_Binary;
if (Enum.IsDefined(typeof(DataChannelPayloadProtocols), ppID))
{
payloadType = (DataChannelPayloadProtocols)ppID;
}
onmessage?.Invoke(this, (DataChannelPayloadProtocols)ppID, data);
}
private static void OnData(RTCDataChannel dc, DataChannelPayloadProtocols proto, byte[] data)
{
if (proto == DataChannelPayloadProtocols.WebRTC_String)
{
Console.WriteLine($"{dc.label}: return recv stream id {dc.id}, send# {Encoding.UTF8.GetString(data)}");
int pairID = int.Parse(Regex.Match(dc.label, @".*-(?<id>\d+)-.*").Result("${id}"));
connectionPairs.Single(x => x.ID == pairID).StreamSendConfirmed[dc.id.Value].Set();
}
else if (proto == DataChannelPayloadProtocols.WebRTC_Binary)
{
var packet = BytesToStructure <Message>(data);
var sha256 = Crypto.GetSHA256Hash(packet.Data);
Console.WriteLine($"{dc.label}: recv stream id {dc.id}, send# {packet.Num}.");
//Console.WriteLine($"{dc.label}: recv {packet.Num}, sha256 {sha256}.");
if (sha256 != packet.SHA256)
{
throw new ApplicationException($"Data channel message sha256 hash {sha256} did not match expected hash {packet.SHA256}.");
}
dc.send(packet.Num.ToString());
}
}