private void CheckPeers()
{
DateTime dtNow = DateTime.UtcNow;
bool changed = false;
bool hasCheckedPeers = false;
for (int i = fPeers.Count - 1; i >= 0; i--)
{
var peer = fPeers[i];
if (peer.IsLocal)
{
continue;
}
if (peer.IsUnknown && (peer.PingTries >= 10 || dtNow - peer.LastUpdateTime > TimeSpan.FromMinutes(10)))
{
fPeers.Remove(peer);
changed = true;
continue;
}
// always send ping
SendPing(peer, (peer.State < PeerState.Checked));
if (peer.State >= PeerState.Checked)
{
hasCheckedPeers = true;
}
if (peer.State == PeerState.Unknown)
{
fDHTClient.FindUnkPeer(peer);
}
SendData(peer.EndPoint, ProtocolHelper.CreateHandshakeQuery(DHTTransactions.GetNextId(), fDHTClient.LocalID));
}
if (hasCheckedPeers)
{
if (fConnectionState == ConnectionState.Connection)
{
fConnectionState = ConnectionState.Connected;
changed = true;
}
}
else
{
if (fConnectionState == ConnectionState.Connected)
{
fConnectionState = ConnectionState.Connection;
changed = true;
}
}
if (changed)
{
fForm.OnPeersListChanged();
}
}
public Peer AddPeer(IPAddress peerAddress, int port)
{
fLogger.WriteInfo(string.Format("Found new peer: {0}", peerAddress));
lock (fPeers) {
Peer peer = new Peer(peerAddress, port);
fPeers.Add(peer);
fForm.OnPeersListChanged();
return(peer);
}
}
public CommunicatorCore(IChatForm form)
{
if (form == null)
{
throw new ArgumentNullException("form");
}
fConnected = false;
fForm = form;
fLogger = LogManager.GetLogger(ProtocolHelper.LOG_FILE, ProtocolHelper.LOG_LEVEL, "ChatDHTCP");
fProfile = new UserProfile();
fParser = new BencodeParser();
fPeers = new List <Peer>();
fSTUNInfo = null;
int dhtPort = DHTClient.PublicDHTPort;
fDHTClient = new DHTClient(DHTClient.IPAnyAddress, dhtPort, this, CLIENT_VER);
fDHTClient.PeersFound += delegate(object sender, PeersFoundEventArgs e) {
fLogger.WriteInfo(string.Format("Found DHT peers: {0}", e.Peers.Count));
bool changed = false;
foreach (var p in e.Peers)
{
changed = UpdatePeer(p);
}
if (changed)
{
fForm.OnPeersListChanged();
}
};
fDHTClient.PeerPinged += delegate(object sender, PeerPingedEventArgs e) {
fLogger.WriteInfo(string.Format("Peer pinged: {0}", e.EndPoint));
bool changed = CheckPeer(e.EndPoint);
if (changed)
{
fForm.OnPeersListChanged();
SendData(e.EndPoint, ProtocolHelper.CreateGetPeerInfoQuery());
}
};
fDHTClient.QueryReceived += OnQueryReceive;
fDHTClient.ResponseReceived += OnResponseReceive;
NATHolePunching();
fTCPClient = new TCPDuplexClient();
fTCPClient.DataReceive += OnDataReceive;
}
private void OnPeersFound(object sender, PeersFoundEventArgs e)
{
bool changed = false;
int newFounded = 0;
foreach (var p in e.Peers)
{
changed = UpdatePeer(p);
if (changed)
{
newFounded += 1;
}
}
if (changed)
{
fLogger.WriteDebug("Found DHT peers: {0}", newFounded);
fForm.OnPeersListChanged();
}
}