public void Join(uint hostId, bool directP2P)
{
var encrypted = Filter.Config.EnableP2PEncryptedMessaging;
EncryptContext encryptContext = null;
if (encrypted)
{
encryptContext = new EncryptContext(Filter.Config.EncryptedMessageKeyLength);
}
var remotePeer = new ServerRemotePeer(this, hostId, directP2P, encryptContext);
if (!_members.TryAdd(hostId, remotePeer))
{
throw new ProudException($"Member {hostId} is already in P2PGroup {HostId}");
}
var session = _filter.SessionLookupByHostId.GetValueOrDefault(hostId);
if (session != null)
{
session.P2PGroup = this;
if (encrypted)
{
session.Send(new P2PGroup_MemberJoinMessage(HostId, hostId, 0, encryptContext.RC4.Key, directP2P));
}
else
{
session.Send(new P2PGroup_MemberJoin_UnencryptedMessage(HostId, hostId, 0, directP2P));
}
}
foreach (var member in _members.Values.Where(member => member.HostId != hostId).Cast <ServerRemotePeer>())
{
var memberSession = _filter.SessionLookupByHostId.GetValueOrDefault(member.HostId);
var stateA = new P2PConnectionState(member);
var stateB = new P2PConnectionState(remotePeer);
remotePeer.ConnectionStates[member.HostId] = stateA;
member.ConnectionStates[remotePeer.HostId] = stateB;
if (encrypted)
{
memberSession?.Send(new P2PGroup_MemberJoinMessage(HostId, hostId, stateB.EventId, encryptContext.RC4.Key, directP2P));
session?.Send(new P2PGroup_MemberJoinMessage(HostId, member.HostId, stateA.EventId, member.EncryptContext.RC4.Key, directP2P));
}
else
{
memberSession?.Send(new P2PGroup_MemberJoin_UnencryptedMessage(HostId, hostId, stateB.EventId, directP2P));
session?.Send(new P2PGroup_MemberJoin_UnencryptedMessage(HostId, member.HostId, stateA.EventId, directP2P));
}
}
}
public P2PConnectionState(ServerRemotePeer remotePeer)
{
RemotePeer = remotePeer;
EventId = (uint)Guid.NewGuid().GetHashCode();
}