public void WritePacket(IPacket packet)
{
/* Writes packet to a buffer,
* then sends the buffer to the socket
*/
MemoryStream tempStream = new MemoryStream();
packet.WritePacket(new PacketWriter(tempStream));
byte[] buffer = new byte[tempStream.Length];
tempStream.Read(buffer, 0, buffer.Length);
buffer = (buffer.Skip(HeaderSize).ToArray());
CoCCrypto.Encrypt(buffer);
CoCStream.Write(buffer, 0, buffer.Length);
}
/// <summary>
/// Sends the specified packet to the socket asynchronously.
/// </summary>
/// <param name="packet">The <see cref="IPacket"/> that will be sent.</param>
/// <exception cref="System.ArgumentNullException"/>
public void SendPacket(IPacket packet)
{
if (packet == null)
{
throw new ArgumentNullException("packet");
}
using (var dePacketWriter = new PacketWriter(new MemoryStream()))
{
packet.WritePacket(dePacketWriter);
var body = ((MemoryStream)dePacketWriter.BaseStream).ToArray();
CoCCrypto.Encrypt(body);
if (packet is UpdateKeyPacket)
{
UpdateCiphers(Seed, ((UpdateKeyPacket)packet).Key); // handle update key packet
}
using (var enPacketWriter = new PacketWriter(new MemoryStream())) // write header
{
enPacketWriter.WriteUInt16(packet.ID);
enPacketWriter.WriteInt24(body.Length);
enPacketWriter.WriteUInt16(0); // the unknown or the packet version
enPacketWriter.Write(body, 0, body.Length);
var rawPacket = ((MemoryStream)enPacketWriter.BaseStream).ToArray();
// should avoid new objs
var args = new SocketAsyncEventArgs();
args.SetBuffer(rawPacket, 0, rawPacket.Length);
if (!Connection.SendAsync(args))
{
AsyncOperationCompleted(Connection, args);
}
}
}
}
