public static byte[] EncodeNetworkAddressWithTime(NetworkAddressWithTime networkAddress)
{
var stream = new MemoryStream();
EncodeNetworkAddressWithTime(stream, networkAddress);
return(stream.ToArray());
}
public static void EncodeNetworkAddressWithTime(Stream stream, NetworkAddressWithTime networkAddress)
{
using (var writer = new BinaryWriter(stream, Encoding.ASCII, leaveOpen: true))
{
writer.Write4Bytes(networkAddress.Time);
EncodeNetworkAddress(stream, networkAddress.NetworkAddress);
}
}
public static byte[] EncodeNetworkAddressWithTime(NetworkAddressWithTime networkAddressWithTime)
{
using (var stream = new MemoryStream())
using (var writer = new BinaryWriter(stream))
{
EncodeNetworkAddressWithTime(writer, networkAddressWithTime);
return(stream.ToArray());
}
}
private void HandlePeerHandshakeCompleted(Peer peer)
{
var remoteAddressWithTime = new NetworkAddressWithTime(DateTimeOffset.Now, peer.RemoteEndPoint.ToNetworkAddress(/*TODO*/ services: 0));
this.networkPeerStorage[remoteAddressWithTime.NetworkAddress.GetKey()] = remoteAddressWithTime;
WirePeerEvents(peer);
this.statsWorker.NotifyWork();
this.blockRequestWorker.NotifyWork();
}
public static void EncodeNetworkAddressWithTime(BinaryWriter writer, NetworkAddressWithTime networkAddressWithTime)
{
writer.WriteUInt32((uint)networkAddressWithTime.Time.ToUnixTimeSeconds()); //TODO is time LE or BE on network messages?
EncodeNetworkAddress(writer, networkAddressWithTime.NetworkAddress);
}
private async Task<bool> ConnectAndHandshake(RemoteNode remoteNode, bool isIncoming)
{
// wire node
WireNode(remoteNode);
// connect
await remoteNode.ConnectAsync();
if (remoteNode.IsConnected)
{
//TODO
RemoteNode ignore;
this.pendingPeers.TryRemove(remoteNode.RemoteEndPoint, out ignore);
this.connectedPeers.TryAdd(remoteNode.RemoteEndPoint, remoteNode);
// setup task to wait for verack
var verAckTask = remoteNode.Receiver.WaitForMessage(x => x.Command == "verack", HANDSHAKE_TIMEOUT_MS);
// setup task to wait for version
var versionTask = remoteNode.Receiver.WaitForMessage(x => x.Command == "version", HANDSHAKE_TIMEOUT_MS);
// start listening for messages after tasks have been setup
remoteNode.Receiver.Listen();
// send our local version
var nodeId = (((UInt64)random.Next()) << 32) + (UInt64)random.Next(); //TODO should be generated and verified on version message
var currentBlockchainLocal = this.blockchainDaemon.CurrentBlockchain;
var currentHeight = !currentBlockchainLocal.IsDefault ? (UInt32)currentBlockchainLocal.Height : 0;
await remoteNode.Sender.SendVersion(Messaging.GetExternalIPEndPoint(), remoteNode.RemoteEndPoint, nodeId, currentHeight);
// wait for our local version to be acknowledged by the remote peer
// wait for remote peer to send their version
await Task.WhenAll(verAckTask, versionTask);
//TODO shouldn't have to decode again
var versionMessage = versionTask.Result;
var versionPayload = NetworkEncoder.DecodeVersionPayload(versionMessage.Payload.ToArray().ToMemoryStream(), versionMessage.Payload.Length);
var remoteAddressWithTime = new NetworkAddressWithTime
(
Time: DateTime.UtcNow.ToUnixTime(),
NetworkAddress: new NetworkAddress
(
Services: versionPayload.LocalAddress.Services,
IPv6Address: versionPayload.LocalAddress.IPv6Address,
Port: versionPayload.LocalAddress.Port
)
);
if (!isIncoming)
this.knownAddressCache.UpdateValue(remoteAddressWithTime.GetKey(), remoteAddressWithTime);
// acknowledge their version
await remoteNode.Sender.SendVersionAcknowledge();
return true;
}
else
{
return false;
}
}
public static byte[] EncodeNetworkAddressWithTime(NetworkAddressWithTime networkAddress)
{
var stream = new MemoryStream();
EncodeNetworkAddressWithTime(stream, networkAddress);
return stream.ToArray();
}
public static void EncodeNetworkAddressWithTime(Stream stream, NetworkAddressWithTime networkAddress)
{
using (var writer = new BinaryWriter(stream, Encoding.ASCII, leaveOpen: true))
{
writer.Write4Bytes(networkAddress.Time);
EncodeNetworkAddress(stream, networkAddress.NetworkAddress);
}
}
