private void RemovePeerFromDictionaries(PeerData peer, string reason)
{
if (peer != null)
{
if (PeersTx.ContainsKey(peer.SubnetworkIP))
{
PeersTx.Remove(peer.SubnetworkIP);
}
if (PeersRxSupport.ContainsKey(peer.GetSupportEndpoint()))
{
PeersRxSupport.Remove(peer.GetSupportEndpoint());
}
if (PeersRxTransmission.ContainsKey(peer.GetSupportEndpoint()))
{
PeersRxTransmission.Remove(peer.GetTransmissionEndpoint());
}
OnPeerListChanged(this, new PeerListChangedEventArgs(PeersRxSupport.Values.ToArray()));
if (reason != null)
{
Logger.Instance.LogMsg("Usunięto użytkownika (" + reason + "): " + peer.ToString());
}
else
{
Logger.Instance.LogMsg("Usunięto użytkownika: " + peer.ToString());
}
}
}
private void AddPeerToDictionaries(PeerData peer)
{
if (peer != null)
{
PeersTx.Add(peer.SubnetworkIP, peer);
PeersRxSupport.Add(peer.GetSupportEndpoint(), peer);
PeersRxTransmission.Add(peer.GetTransmissionEndpoint(), peer);
OnPeerListChanged(this, new PeerListChangedEventArgs(PeersRxSupport.Values.ToArray()));
Logger.Instance.LogMsg("Dodano użytkownika: " + peer.ToString());
}
}
private Task InitiateNewUser(PeerData peer, uint subnetworkIP)
{
return(Task.Run(() =>
{
// pakiet dla nowego użytkownika
UdpNewPeerPacket packet = new UdpNewPeerPacket(
peer.Name,
subnetworkIP,
true,
PeersRxSupport.Values.ToArray(),
CurrentSubnetwork
);
byte[] data = GetSerializedBytes <UdpNewPeerPacket>(packet);
ReceivedConfirmation = new ManualResetEvent(false);
NewPeer = peer;
int retryCounter = 0;
while (retryCounter++ < ConnectionRetries && !CancelToken.IsCancellationRequested)
{
UdpSupport.Send(data, data.Length, peer.GetSupportEndpoint());
if (ReceivedConfirmation.WaitOne(2000))
{
break;
}
}
NewPeer = null;
if (retryCounter > ConnectionRetries)
{
throw new NewClientNotReachedException("Czas wywołania minął!", null);
}
if (!CancelToken.IsCancellationRequested)
{
return;
}
// pakiet dla pozostałych
packet = new UdpNewPeerPacket(
null,
0,
false,
new PeerData[1] {
peer
},
null
);
Broadcast <UdpNewPeerPacket>(packet);
}));
}
private void NegotiateKey(PeerData peer, UdpKeyNegotiationPacket packet)
{
if (!peer.KeyExchangeInProgress)
{
UdpKeyNegotiationPacket negoPacket = new UdpKeyNegotiationPacket(
KeyExchange.GetKeyMaterial(),
KeyExchange.GetDSASignature()
);
SendPacket <UdpKeyNegotiationPacket>(negoPacket, peer.GetSupportEndpoint());
}
if (packet != null)
{
Encryption.DeleteKeyIfInStore(peer.KeyIndex);
peer.KeyIndex = Encryption.AddKeyToStore(
KeyExchange.GetDerivedKey(packet.KeyMaterial, packet.DSASignature, peer.PublicKey)
);
peer.KeyExchangeInProgress = false;
}
else
{
peer.KeyExchangeInProgress = true;
}
}
