private async Task Peer_OnMessage(BitcoinPeer s, IStreamable msg)
{
switch (msg)
{
case Addr a:
{
foreach (var ip in a.Ips)
{
var ep = new IPEndPoint(ip.Ip.MapToIPv6(), ip.Port);
var epb = ep.ToByteArray();
if (!await db.SetContainsAsync("hs:nodes:good-nodes", epb) && !await db.SetContainsAsync("hs:nodes:bad-nodes", epb))
{
QueueNewNode(ep);
}
}
break;
}
case Ping a:
{
var pong = new Pong();
pong.Nonce = a.Nonce;
await s.WriteMessage(pong);
break;
}
case bitcoin_lib.P2P.Version a:
{
GotVersion = true;
//send verack and log
await SetNodeDetails(a);
var va = new VerAck();
await s.WriteMessage(va);
var ga = new GetAddr();
await s.WriteMessage(ga);
break;
}
}
}
public async Task UpdateNodeInfo(Node n)
{
//Console.WriteLine($"Update node info: {n.IP}");
try
{
//try to connect to the node to get version info and to get its peers
var ns = new Socket(SocketType.Stream, ProtocolType.Tcp);
await ns.ConnectAsync(n.IP);
var p = new BitcoinPeer(ns);
//Console.WriteLine($"Connected to {n.IP}");
var ss = new SemaphoreSlim(0, 1);
var db = Redis.GetDatabase();
p.OnVersion += async(s, v) =>
{
//send verack and log
var ip = new IPEndPoint(((IPEndPoint)s.RemoteEndpoint).Address.MapToIPv6(), ((IPEndPoint)s.RemoteEndpoint).Port);
var ipb = ip.ToByteArray();
await db.HashSetAsync($"hs:nodes:detail:{ip.ToString()}", "version", v.ToArray());
if (await db.SortedSetAddAsync("hs:nodes:all-nodes", ipb, DateTime.Now.Ticks))
{
//Console.WriteLine($"Got new node: {ip}");
await db.SetRemoveAsync("hs:nodes:new-nodes", ipb);
var gloc = GeoIp.City(ip.Address);
if (gloc.Location.HasCoordinates)
{
await db.GeoAddAsync("hs:nodes:geo", new GeoEntry(gloc.Location.Longitude.Value, gloc.Location.Latitude.Value, ipb));
}
}
var va = new VerAck();
await s.WriteMessage(va);
var ga = new GetAddr();
await s.WriteMessage(ga);
};
p.OnAddr += async(s, a) =>
{
//Console.WriteLine($"Got {a.IpCount.Value} ips");
foreach (var ip in a.Ips)
{
var ep = new IPEndPoint(ip.Ip.MapToIPv6(), ip.Port);
var epb = ep.ToByteArray();
if (await db.SetAddAsync("hs:nodes:new-nodes", epb))
{
//Console.WriteLine($"Got new node: {ep}");
}
}
s.Stop();
ss.Release();
//Console.WriteLine($"Disconnected from {n.IP}");
};
p.Start();
Ver.Timestamp = (UInt64)DateTimeOffset.Now.ToUnixTimeSeconds();
await p.WriteMessage(Ver);
await ss.WaitAsync(TimeSpan.FromSeconds(5));
}
catch (Exception ex)
{
//Console.WriteLine(ex);
}
}
