Example #1
0
        private void c_OnDisconnect(ClientStream s)
        {
            try
            {
                lock (sync)
                {
                    if (connectedClientNodes.Contains(s))
                    {
                        //Check it is actually the same node
                        //  var search = connectedClientNodes.Where(n => n.Node.ID == s.Node.ID && s.Node.Secret == s.Node.Secret).FirstOrDefault();
                        // if (null == search)
                        {
                            logger.Debug("Server dropped client {0}", s.Node.ID);
                            connectedClientNodes.Remove(s);
                            s.OnDisconnect -= c_OnDisconnect;
                            var info = new UpdateVerb();
                            info.Nodes.Add(new Node {ID = s.Node.ID, Online = false});
                            NetworkRequest req = info.CreateRequest();
                            req.OverlordID = serverNode.ID;
                            req.SourceID = serverNode.ID;

                            SendToOverlordClients(req);
                            SendToStandardClients(req);
                        }
                    }
                }
            }
            catch
            {
            }
        }
Example #2
0
        private bool HandleConnect(NetworkRequest r, RequestEventArgs e)
        {
            string address = string.Empty;

            try
            {
                var iv = new ConnectVerb();
                iv.ProcessRequest(r);
                address = iv.Address;

                if (string.IsNullOrEmpty(iv.Secret))
                {
                    //Dont allow connections with no secret
                    return false;
                }

                //Dont allow connections to ourselves..
                if (iv.Address == serverNode.Location)
                    return false;

                //Only allow one connect attempt at once
                lock (sync)
                {
                    if (connectingIDs.Contains(address))
                        return false;
                    connectingIDs.Add(address);
                }

                //Connect to the remote client 
                var verb = new InfoVerb();
                var client = new Client(serverNode);

                if (!client.Execute(verb, address))
                    return false;
                //Connected ok
                var c = new ClientStream();
                c.OnDisconnect += c_OnDisconnect;
                Node n = verb.GetValidatedNode();
                if (null == n)
                    return false;
                n.Location = iv.Address;
                n.Online = true;
                n.NodeType = iv.ClientType;
                n.OverlordID = serverNode.ID;
                n.Secret = iv.Secret;

                lock (sync)
                {
                    //Notify other clients
                    var update = new UpdateVerb();

                    //Was this person already connected?
                    ClientStream search = connectedClientNodes.Where(xn => xn.Node.ID == n.ID).FirstOrDefault();
                    if (null != search)
                    {
                        connectedClientNodes.Remove(search);
                        search.Kill();
                    }
                    c.Start(n, serverNode);
                    connectedClientNodes.Add(c);
                    update.Nodes.Add(n);
                    NetworkRequest req = update.CreateRequest();
                    req.SourceID = serverNode.ID;
                    req.OverlordID = serverNode.ID;
                    req.AuthKey = iv.Secret;

                    SendToStandardClients(req);
                    //Dont send overlord logs to other overlords
                    if (n.NodeType != ClientType.Overlord)
                        SendToOverlordClients(req);
                }
                //Find client servers
                ThreadPool.QueueUserWorkItem(ScanClientAsync, n);
                //return ok

                //Add headers
                var headers = e.Response.Headers as HeaderCollection;
                if (null != headers)
                {
                    headers.Add("FAP-AUTH", iv.Secret);
                    headers.Add("FAP-SOURCE", serverNode.ID);
                    headers.Add("FAP-OVERLORD", serverNode.ID);
                }

                SendResponse(e, null);

                //Send network info
                if (n.NodeType == ClientType.Overlord)
                {
                    var update = new UpdateVerb();
                    //Only send local nodes
                    foreach (
                        ClientStream peer in
                            connectedClientNodes.ToList().Where(x => x.Node.NodeType == ClientType.Client))
                        update.Nodes.Add(peer.Node);
                    NetworkRequest req = update.CreateRequest();
                    req.SourceID = serverNode.ID;
                    req.OverlordID = serverNode.ID;
                    req.AuthKey = iv.Secret;
                    c.AddMessage(req);
                }
                else
                {
                    var update = new UpdateVerb();
                    //None overlord client.  Send local nodes and external ones.
                    update.Nodes = GetBestKnownClientList();

                    NetworkRequest req = update.CreateRequest();
                    req.SourceID = serverNode.ID;
                    req.OverlordID = serverNode.ID;
                    req.AuthKey = iv.Secret;
                    c.AddMessage(req);
                }
                return true;
            }
            catch
            {
            }
            finally
            {
                connectingIDs.Remove(address);
            }
            SendError(e);
            return false;
        }