private void HandshakeMessageReceived(IMessageReceivedContext context)
{
var data = context.Reader.ReadBytes(context.MessageLength - 1);
var handshake = new ExtensionProtocolHandshake();
handshake.Deserialize(data);
context.SetValue(ExtensionProtocolMessageIds, handshake.MessageIds);
}
void IModule.OnPeerConnected(IPeerContext context)
{
// Check for extension protocol support
bool supportsExtensionProtocol = (context.Peer.ReservedBytes[5] & 0x10) != 0;
if (!supportsExtensionProtocol)
{
return;
}
// Register to receive extension protocol messages
context.RegisterMessageHandler(ExtensionProtocolMessageId);
// Send handshake message
var handshake = new ExtensionProtocolHandshake
{
MessageIds = _supportedMessages,
Client = "TorrentCore 0.1", // todo
};
var handshakeDict = handshake.Serialize();
var prepareHandshakeContext =
new PrepareExtensionProtocolHandshakeContext(
handshakeDict,
context,
msg => SendExtensionMessage(context, msg));
foreach (var handler in _registeredHandlers)
{
handler.PrepareExtensionProtocolHandshake(prepareHandshakeContext);
}
SendMessage(context, writer =>
{
writer.Write((byte)0);
writer.Flush();
handshakeDict.EncodeTo(writer.BaseStream);
});
}