/// <summary>
/// Logs the memory useage using GC.GetTotalMemory and returns the memory useage
/// </summary>
/// <param name="p">Process to use to calculate memory</param>
public static void LogMemory(Process p)
{
long mem = +GC.GetTotalMemory(false);
if (mem > maxMemoryUseage)
{
maxMemoryUseage = mem;
}
Globals_Server.logEvent("GC memory: " + mem);
}
/// <summary>
/// Send an update to the client- used when the message to be sent requires additional information other than just a response code and some strings
/// </summary>
/// <param name="message">Message to be sent- can contain any number of details</param>
public void Update(ProtoMessage message)
{
Contract.Requires(message != null);
message.ActionType = Actions.Update;
if (conn != null)
{
Globals_Server.logEvent("Update " + this.username + ": " + message.ResponseType.ToString());
Console.WriteLine("Sending update " + message.ResponseType.ToString() + " to " + this.username);
Server.SendViaProto(message, conn, alg);
}
}
/// <summary>
/// Updates the client
/// </summary>
/// <param name="message">The message code to send</param>
/// <param name="fields">Additional information to add to the message</param>
public void Update(DisplayMessages message, string[] fields = null)
{
ProtoMessage m = new ProtoMessage();
m.ActionType = Actions.Update;
m.ResponseType = message;
m.MessageFields = fields;
if (conn != null)
{
Globals_Server.logEvent("Update " + this.username + ": " + message.ToString());
Console.WriteLine("Sending update " + message.ToString() + " to " + this.username);
Server.SendViaProto(m, conn, alg);
}
}
/// <summary>
/// Processes a client disconnecting from the server- removes the client as an observer, removes their connection and deletes their CryptoServiceProvider
/// </summary>
/// <param name="conn">Connection of the client who disconnected</param>
private void Disconnect(NetConnection conn)
{
Contract.Requires(conn != null);
lock (ServerLock)
{
if (clientConnections.ContainsKey(conn))
{
Client client = clientConnections[conn];
Globals_Server.logEvent("Client " + client.username + " has disconnected.");
Globals_Game.RemoveObserver(client);
client.conn = null;
clientConnections.Remove(conn);
client.alg = null;
conn.Disconnect("Disconnect");
}
}
}
//public static void SendViaProto(global::ProtoMessage.ProtoMessage m, NetConnection conn, bool isPCL, NetEncryption alg = null)
//{
// Contract.Requires(m != null && conn != null);
// NetOutgoingMessage msg = server.CreateMessage();
// MemoryStream ms = new MemoryStream();
// Serializer.SerializeWithLengthPrefix<global::ProtoMessage.ProtoMessage>(ms, m, PrefixStyle.Fixed32);
// msg.Write(ms.GetBuffer());
// if (alg != null)
// {
// msg.Encrypt(alg);
// }
// server.SendMessage(msg, conn, NetDeliveryMethod.ReliableOrdered);
// server.FlushSendQueue();
//}
/// <summary>
/// Read a message, get the relevant reply and send to client
/// </summary>
/// <param name="m">Deserialised message from client</param>
/// <param name="connection">Client's connecton</param>
public void ProcessMessage(ProtoMessage m, NetConnection connection)
{
Contract.Requires(connection != null && m != null);
Client client;
clientConnections.TryGetValue(connection, out client);
if (client == null)
{
NetOutgoingMessage errorMessage =
server.CreateMessage("There was a problem with the connection. Please try re-connecting");
server.SendMessage(errorMessage, connection, NetDeliveryMethod.ReliableOrdered);
string log = "Connection from peer " + connection.Peer.UniqueIdentifier +
" not found in client connections. Timestamp: " +
DateTime.Now.ToString(DateTimeFormatInfo.CurrentInfo);
Globals_Server.logError(log);
return;
}
var pc = client.myPlayerCharacter;
if (pc == null || !pc.isAlive)
{
NetOutgoingMessage msg = server.CreateMessage("You have no valid PlayerCharacter!");
server.SendMessage(msg, connection, NetDeliveryMethod.ReliableOrdered);
server.FlushSendQueue();
}
else
{
Globals_Server.logEvent("From: " + clientConnections[connection].username +
": request = " + m.ActionType.ToString());
ProtoMessage reply = Game.ActionController(m, client);
// Set action type to ensure client knows which action invoked response
if (reply == null)
{
ProtoMessage invalid = new ProtoMessage(DisplayMessages.ErrorGenericMessageInvalid);
invalid.ActionType = Actions.Update;
reply = invalid;
}
else
{
reply.ActionType = m.ActionType;
}
SendViaProto(reply, connection, client.alg);
}
}
public static void TestRun(bool encrypt = true)
{
Process currentProcess = Process.GetCurrentProcess();
if (encrypt)
{
Globals_Server.logEvent("Running test with encryption");
}
else
{
Globals_Server.logEvent("Running test without encryption");
}
double LoginTime, RecruitTime, MoveTime, SpyTime;
double start = DateTime.Now.TimeOfDay.TotalMilliseconds;
byte[] encryptionKey = null;
if (encrypt)
{
encryptionKey = LogInManager.GetRandomSalt(32);
}
client.LogInAndConnect(Username, Pass, encryptionKey);
while (!client.IsConnectedAndLoggedIn())
{
Thread.Sleep(0);
}
LoginTime = DateTime.Now.TimeOfDay.TotalMilliseconds - start;
client.RecruitTroops(OwnedArmy.armyID, 70, true);
RecruitTime = ProcessNextAction(Actions.RecruitTroops, currentProcess);
// Move to another fief
client.Move(MyPlayerCharacter.charID, NotOwnedFief.id, null);
MoveTime = ProcessNextAction(Actions.TravelTo, currentProcess);
// Spy
client.SpyOnFief(MyPlayerCharacter.charID, MyPlayerCharacter.location.id);
SpyTime = ProcessNextAction(Actions.SpyFief, currentProcess);
// Confirm spy
Globals_Server.logEvent("Time taken to run test (ms): " + (DateTime.Now.TimeOfDay.TotalMilliseconds - start));
Globals_Server.logEvent("LogIn time: " + LoginTime);
Globals_Server.logEvent("Recruit time: " + (RecruitTime));
Globals_Server.logEvent("Travel time: " + MoveTime);
Globals_Server.logEvent("Spy time: " + SpyTime);
Globals_Server.logEvent("Max memory measured: " + maxMemoryUseage);
}
/// <summary>
/// Sends a message by serializing with ProtoBufs
/// </summary>
/// <param name="m">Message to be sent</param>
/// <param name="conn">Connection to send across</param>
/// <param name="alg">Optional encryption algorithm</param>
public static void SendViaProto(ProtoMessage m, NetConnection conn, NetEncryption alg = null)
{
Contract.Requires(m != null && conn != null);
NetOutgoingMessage msg = server.CreateMessage();
MemoryStream ms = new MemoryStream();
Serializer.SerializeWithLengthPrefix <ProtoMessage>(ms, m, PrefixStyle.Fixed32);
msg.Write(ms.GetBuffer());
if (alg != null)
{
msg.Encrypt(alg);
}
server.SendMessage(msg, conn, NetDeliveryMethod.ReliableOrdered);
server.FlushSendQueue();
Globals_Server.logEvent(""
+ " Sending to: " + clientConnections[conn].username
+ " | ActionType = " + m.ActionType.ToString()
+ " | ResponseType = " + m.ResponseType.ToString()
+ " | " + conn.RemoteEndPoint.ToString()
);
}
public void read()
{
while (client.Status == NetPeerStatus.Running && !ctSource.Token.IsCancellationRequested)
{
WaitHandle.WaitAny(new WaitHandle[] { client.MessageReceivedEvent, ctSource.Token.WaitHandle });
NetIncomingMessage im;
while ((im = client.ReadMessage()) != null && !ctSource.IsCancellationRequested)
{
switch (im.MessageType)
{
case NetIncomingMessageType.DebugMessage:
case NetIncomingMessageType.ErrorMessage:
case NetIncomingMessageType.WarningMessage:
case NetIncomingMessageType.VerboseDebugMessage:
case NetIncomingMessageType.Data:
try
{
if (alg != null)
{
im.Decrypt(alg);
}
MemoryStream ms = new MemoryStream(im.Data);
ProtoMessage m = null;
try
{
m = Serializer.DeserializeWithLengthPrefix <ProtoMessage>(ms, PrefixStyle.Fixed32);
}
catch (Exception e)
{
// Attempt to read string and add to message queue
string s = im.ReadString();
if (!string.IsNullOrWhiteSpace(s))
{
Console.WriteLine("CLIENT: Got message: " + s);
tClient.stringMessageQueue.Enqueue(s);
}
}
if (m != null)
{
Console.WriteLine("CLIENT: Got ProtoMessage with ActionType: " + m.ActionType + " and response type: " + m.ResponseType);
if (m.ResponseType == DisplayMessages.LogInSuccess)
{
loggedIn = true;
tClient.protobufMessageQueue.Enqueue(m);
}
else
{
if (m.ActionType == Actions.Update)
{
// Don't do anything at the moment for updates
}
else
{
tClient.protobufMessageQueue.Enqueue(m);
if (m.ActionType == Actions.LogIn && m.ResponseType == DisplayMessages.None)
{
byte[] key = null;
if (ValidateCertificateAndCreateKey(m as ProtoLogIn, out key))
{
ComputeAndSendHashAndKey(m as ProtoLogIn, key);
}
}
else
{
// Attempt to read string and add to message queue
string s = im.ReadString();
if (!string.IsNullOrWhiteSpace(s))
{
tClient.stringMessageQueue.Enqueue(s);
}
}
}
}
}
}
catch (Exception e)
{
Globals_Server.logError("Error in reading data: " + e.GetType() + " :" + e.Message + "; Stack Trace: " + e.StackTrace);
}
break;
case NetIncomingMessageType.StatusChanged:
NetConnectionStatus status = (NetConnectionStatus)im.ReadByte();
Console.WriteLine("CLIENT: Status changed to " + status.ToString());
//MemoryStream ms2 = new MemoryStream(im.SenderConnection.RemoteHailMessage.Data);
if (status == NetConnectionStatus.Connected)
{
if (im.SenderConnection.RemoteHailMessage != null)
{
try
{
MemoryStream ms2 = new MemoryStream(im.SenderConnection.RemoteHailMessage.Data);
ProtoMessage m = Serializer.DeserializeWithLengthPrefix <ProtoMessage>(ms2, PrefixStyle.Fixed32);
if (m != null)
{
tClient.protobufMessageQueue.Enqueue(m);
if (m.ActionType == Actions.LogIn && m.ResponseType == DisplayMessages.None)
{
byte[] key = null;
if (ValidateCertificateAndCreateKey(m as ProtoLogIn, out key))
{
if (autoLogIn)
{
ComputeAndSendHashAndKey(m as ProtoLogIn, key);
}
}
else
{
Console.WriteLine("Certificate validation failed: Server may be untrusted");
client.Disconnect("Invalid Certificate");
}
}
}
}
catch (Exception e)
{
}
}
break;
}
else if (status == NetConnectionStatus.Disconnected)
{
string reason = im.ReadString();
if (!string.IsNullOrEmpty(reason))
{
tClient.stringMessageQueue.Enqueue(reason);
}
}
if (im.SenderConnection.RemoteHailMessage != null && (NetConnectionStatus)im.ReadByte() == NetConnectionStatus.Connected)
{
}
break;
case NetIncomingMessageType.ConnectionLatencyUpdated:
break;
default:
break;
}
client.Recycle(im);
}
}
#if DEBUG
Globals_Server.logEvent("Client listening thread ends");
#endif
}
/// <summary>
/// Initialise the server, and store some test users and clients.
/// </summary>
private void initialise()
{
LogInManager.StoreNewUser("helen", "potato");
LogInManager.StoreNewUser("test", "tomato");
NetPeerConfiguration config = new NetPeerConfiguration(app_identifier);
config.LocalAddress = NetUtility.Resolve(host_name);
config.MaximumConnections = max_connections;
config.Port = port;
config.SetMessageTypeEnabled(NetIncomingMessageType.ConnectionApproval, true);
config.SetMessageTypeEnabled(NetIncomingMessageType.ConnectionLatencyUpdated, false);
config.PingInterval = 10f;
config.ConnectionTimeout = 100f;
config.EnableUPnP = true; //#########
server = new NetServer(config);
ctSource = new CancellationTokenSource();
server.Start();
try {
for (int i = 0; i < 3; i++)
{
if (server.UPnP.ForwardPort(port, "Designated Listening Port"))
{
Globals_Server.logEvent("Port forwarded successfully.");
break;
}
else
{
Globals_Server.logEvent("Port forward FAILED " + i.ToString());
}
}
}
catch (Exception e) {
Globals_Server.logEvent(e.ToString());
}
Globals_Server.server = server;
Globals_Server.logEvent("Server started- host: " + host_name + ", port: " + port + ", appID: " +
app_identifier + ", max connections: " + max_connections);
Client client = new Client("helen", "Char_158");
Globals_Server.Clients.Add("helen", client);
Client client2 = new Client("test", "Char_126");
Globals_Server.Clients.Add("test", client2);
String dir = Directory.GetCurrentDirectory();
//dir = dir.Remove(dir.IndexOf("RepairHist_mmo"));
String path;
if (Environment.OSVersion.Platform == PlatformID.Unix || Environment.OSVersion.Platform == PlatformID.MacOSX)
{
path = Path.Combine(dir, "Certificates");
}
else
{
dir = Directory.GetParent(dir).FullName;
dir = Directory.GetParent(dir).FullName;
path = Path.Combine(dir, "Certificates");
}
LogInManager.InitialiseCertificateAndRSA(path);
}
public void Listen()
{
while (server.Status == NetPeerStatus.Running && !ctSource.Token.IsCancellationRequested)
{
NetIncomingMessage im;
WaitHandle.WaitAny(new WaitHandle[] { server.MessageReceivedEvent, ctSource.Token.WaitHandle });
while ((im = server.ReadMessage()) != null && !ctSource.Token.IsCancellationRequested)
{
if (im.SenderConnection != null)
{
Globals_Server.logEvent("Recieved: " + im.MessageType.ToString() + " | " + im.SenderConnection.RemoteEndPoint.ToString());
}
else
{
Globals_Server.logEvent("Recieved: " + im.MessageType.ToString() + " | NULL");
}
switch (im.MessageType)
{
case NetIncomingMessageType.DebugMessage:
case NetIncomingMessageType.ErrorMessage:
case NetIncomingMessageType.WarningMessage:
Globals_Server.logError("Recieved warning message: " + im.ReadString());
break;
case NetIncomingMessageType.VerboseDebugMessage:
case NetIncomingMessageType.Data:
{
#if DEBUG
//Console.WriteLine("SERVER: recieved data message");
#endif
if (!clientConnections.ContainsKey(im.SenderConnection))
{
//error
im.SenderConnection.Disconnect("Not recognised");
return;
}
Client c = clientConnections[im.SenderConnection];
if (c.alg != null)
{
im.Decrypt(c.alg);
}
ProtoMessage m = null;
using (MemoryStream ms = new MemoryStream(im.Data))
{
try
{
m = Serializer.DeserializeWithLengthPrefix <ProtoMessage>(ms, PrefixStyle.Fixed32);
}
catch (Exception e)
{
NetOutgoingMessage errorMessage = server.CreateMessage(
"Failed to deserialise message. The message may be incorrect, or the decryption may have failed.");
if (c.alg != null)
{
errorMessage.Encrypt(c.alg);
}
server.SendMessage(errorMessage, im.SenderConnection,
NetDeliveryMethod.ReliableOrdered);
Globals_Server.logError("Failed to deserialize message for client: " + c.username);
}
}
if (m == null)
{
string error = "Recieved null message from " + im.SenderEndPoint.ToString();
if (clientConnections.ContainsKey(im.SenderConnection))
{
error += ", recognised client " + clientConnections[im.SenderConnection];
}
else
{
error += ", unrecognised client (possible ping)";
}
error += ". Data: " + im.ReadString();
Globals_Server.logError(error);
break;
}
if (m.ActionType == Actions.LogIn)
{
ProtoLogIn login = m as ProtoLogIn;
if (login == null)
{
im.SenderConnection.Disconnect("Received blank login message.");
return;
}
lock (ServerLock)
{
if (LogInManager.VerifyUser(c.username, login.userSalt))
{
if (LogInManager.ProcessLogIn(login, c))
{
string log = c.username + " logs in from " + im.SenderEndPoint.ToString();
Globals_Server.logEvent(log);
}
}
else
{
ProtoMessage reply = new ProtoMessage
{
ActionType = Actions.LogIn,
ResponseType = DisplayMessages.LogInFail
};
Server.SendViaProto(reply, c.conn, c.alg);
//reply = new ProtoMessage {
// ActionType = Actions.Update,
// ResponseType = DisplayMessages.Error
//};
//Server.SendViaProto(reply, c.conn, c.alg);
im.SenderConnection.Disconnect("Authentication Fail");
Globals_Server.logEvent("Wrong Password, disconnecting user.");
}
}
}
// temp for testing, should validate connection first
else if (clientConnections.ContainsKey(im.SenderConnection))
{
if (Globals_Game.IsObserver(c))
{
ProcessMessage(m, im.SenderConnection);
ProtoClient clientDetails = new ProtoClient(c);
clientDetails.ActionType = Actions.Update;
clientDetails.ResponseType = DisplayMessages.Success;
SendViaProto(clientDetails, im.SenderConnection, c.alg);
}
else
{
im.SenderConnection.Disconnect("Not logged in- Disconnecting");
}
}
}
break;
case NetIncomingMessageType.StatusChanged:
byte stat = im.ReadByte();
NetConnectionStatus status = NetConnectionStatus.None;
if (Enum.IsDefined(typeof(NetConnectionStatus), Convert.ToInt32(stat)))
{
status = (NetConnectionStatus)stat;
}
else
{
Globals_Server.logError("Failure to parse byte " + stat + " to NetConnectionStatus for endpoint " + im.ReadIPEndPoint());
}
Globals_Server.logEvent("\tStatus is now: " + status);
if (status == NetConnectionStatus.Disconnected)
{
string reason = im.ReadString();
if (reason == null)
{
reason = "Unknown";
}
Globals_Server.logEvent(im.SenderConnection.RemoteEndPoint.ToString() + " has disconnected. Reason: " + reason);
if (clientConnections.ContainsKey(im.SenderConnection))
{
Disconnect(im.SenderConnection);
}
}
break;
case NetIncomingMessageType.ConnectionApproval:
{
string senderID = im.ReadString();
string text = im.ReadString();
Client client;
Globals_Server.Clients.TryGetValue(senderID, out client);
if (client != null)
{
ProtoLogIn logIn;
//ProtoMessage logIn;
if (!LogInManager.AcceptConnection(client, text, out logIn))
{
im.SenderConnection.Deny("User not recognised.");
}
else
{
ProtoMessage temp = logIn;
NetOutgoingMessage msg = server.CreateMessage();
MemoryStream ms = new MemoryStream();
// Include X509 certificate as bytes for client to validate
//Serializer.SerializeWithLengthPrefix<ProtoLogIn>(ms, logIn, PrefixStyle.Fixed32);
Serializer.SerializeWithLengthPrefix <ProtoMessage>(ms, temp, PrefixStyle.Fixed32);
msg.Write(ms.GetBuffer());
clientConnections.Add(im.SenderConnection, client);
client.conn = im.SenderConnection;
im.SenderConnection.Approve(msg);
//server.FlushSendQueue();
Globals_Server.logEvent("Accepted connection from " + client.username + " | " + senderID + " | " + text);
}
}
else
{
im.SenderConnection.Deny("Username unrecognised.");
}
server.FlushSendQueue();
}
break;
case NetIncomingMessageType.ConnectionLatencyUpdated:
Globals_Server.logEvent("LATENCY: Still getting these.");
break;
default:
Globals_Server.logError("Received unrecognised incoming message type: " + im.MessageType);
break;
}
server.Recycle(im);
}
}
Globals_Server.logEvent("Server listening thread exits.");
}
/// <summary>
/// Selects random adjoining hex (also equal chance to select current hex)
/// </summary>
/// <returns>Fief to move to (or null)</returns>
/// <param name="from">Current fief</param>
/// <param name="getOwned">bool indicating whether or not to try to return an owned fief</param>
/// <param name="owner">owner, when looking for an owned fief</param>
/// <param name="avoid">Fief to avoid (for retreats)</param>
public Fief chooseRandomHex(Fief from, bool getOwned = false, PlayerCharacter fiefOwner = null, Fief avoid = null)
{
// list to store all edges
List <TaggedEdge <Fief, string> > choices = new List <TaggedEdge <Fief, string> >();
// list to store all edges to owned fiefs
List <TaggedEdge <Fief, string> > ownedChoices = new List <TaggedEdge <Fief, string> >();
// int to use in edge selection
int selection = 0;
// string to contain chosen move direction
Fief goTo = null;
//Fief goTo = from;
// identify and store all target hexes from source hex
foreach (var e in this.myMap.Edges)
{
bool okToAdd = true;
if (e.Source == from)
{
// no 'avoid' fief specified
if (avoid == null)
{
okToAdd = true;
}
// if 'avoid' fief specified
else
{
// if is NOT specified 'avoid' fief
if (e.Target != avoid)
{
okToAdd = true;
}
// if IS specified 'avoid' fief
else
{
okToAdd = false;
}
}
if (okToAdd)
{
choices.Add(e);
// if getOwned, also check for target ownership
if (getOwned)
{
if (e.Target.owner == fiefOwner)
{
ownedChoices.Add(e);
}
}
}
}
}
// if looking for owned fief, get one if possible
if ((getOwned) && (ownedChoices.Count > 0))
{
// choose fief by generating random int between 0 and no. of targets
selection = Globals_Game.myRand.Next(0, ownedChoices.Count);
// get Fief
goTo = ownedChoices[selection].Target;
}
// if ownership not required, choose from all adjoining fiefs
else if (choices.Count > 0)
{
// choose fief by generating random int between 0 and no. of targets
selection = Globals_Game.myRand.Next(0, choices.Count);
// get Fief
goTo = choices[selection].Target;
}
if (goTo == null)
{
Globals_Server.logEvent("Random hex method returned a null value for fief.");
goTo = from; // BUG: temporary fix is for character or army to stay where they are instead, problematic for retreating armies.
}
return(goTo);
}
