/// <summary>
/// Send NetIntroduction to hostExternal and clientExternal; introducing client to host
/// </summary>
public void Introduce(
IPEndPoint hostInternal,
IPEndPoint hostExternal,
IPEndPoint clientInternal,
IPEndPoint clientExternal,
string token)
{
// send message to client
NetOutgoingMessage msg = CreateMessage(10 + token.Length + 1);
msg.m_messageType = NetMessageType.NatIntroduction;
msg.Write(false);
msg.WritePadBits();
msg.Write(hostInternal);
msg.Write(hostExternal);
msg.Write(token);
m_unsentUnconnectedMessages.Enqueue(new NetTuple <IPEndPoint, NetOutgoingMessage>(clientExternal, msg));
// send message to host
msg = CreateMessage(10 + token.Length + 1);
msg.m_messageType = NetMessageType.NatIntroduction;
msg.Write(true);
msg.WritePadBits();
msg.Write(clientInternal);
msg.Write(clientExternal);
msg.Write(token);
m_unsentUnconnectedMessages.Enqueue(new NetTuple <IPEndPoint, NetOutgoingMessage>(hostExternal, msg));
}
/// <summary>
/// Generates a message
/// </summary>
/// <param name="result">result to generate to</param>
/// <param name="data">data to generate from</param>
/// <returns>Message containing data</returns>
public static NetOutgoingMessage GenerateMessage(NetOutgoingMessage result, Packet data)
{
if (data.IsReadOnly)
throw new HandShakeException("Can not generate a message from a readonly packet");
// TODO: check for expiration time
result.WritePadBits();
data.Puts(result);
result.WritePadBits();
data.Mark();
return result;
}
public static NetOutgoingMessage Compress(NetOutgoingMessage msg)
{
msg.WritePadBits();
byte[] input = msg.PeekDataBuffer();
byte[] output = new byte[input.Length*2];
int outlength = ZipCompressor.Instance.Compress(input, msg.LengthBytes, output);
msg.EnsureBufferSize(outlength*8);
input = msg.PeekDataBuffer();
Array.Copy(output, input, outlength);
msg.LengthBytes = outlength;
msg.LengthBits = outlength * 8;
return msg;
}
