Added version checking with disconnect reasons

NebulaClient/MultiplayerClientSession.cs

@@ -179,19 +179,21 @@ private void ClientSocket_OnClose(object sender, CloseEventArgs e)
 
                 if (e.Code == (ushort)DisconnectionReason.ModVersionMismatch)
                 {
+                    string[] versions = e.Reason.Split(';');
                     InGamePopup.ShowWarning(
                         "Mod Version Mismatch",
-                        $"Your Nebula Multiplayer Mod is not the same as the Host version.\nMake sure to use the same version.",
+                        $"Your Nebula Multiplayer Mod is not the same as the Host version.\nYou:{versions[0]} - Remote:{versions[1]}",
                         "OK",
                         OnDisconnectPopupCloseBeforeGameLoad);
                     return;
                 }
 
                 if (e.Code == (ushort)DisconnectionReason.GameVersionMismatch)
                 {
+                    string[] versions = e.Reason.Split(';');
                     InGamePopup.ShowWarning(
                         "Game Version Mismatch",
-                        $"Your version of the game is not the same as the one used by the Host.\nMake sure to use the same version.",
+                        $"Your version of the game is not the same as the one used by the Host.\nYou:{versions[0]} - Remote:{versions[1]}",
                         "OK",
                         OnDisconnectPopupCloseBeforeGameLoad);
                     return;

NebulaHost/PacketProcessors/Session/HandshakeRequestProcessor.cs

@@ -37,15 +37,15 @@ public void ProcessPacket(HandshakeRequest packet, NebulaConnection conn)
             }
 
 
-            if (packet.ModVersion != Config.ModVersion.ToString())
+            if (packet.ModVersion != Config.ModVersion)
             {
-                conn.Disconnect(DisconnectionReason.ModVersionMismatch);
+                conn.Disconnect(DisconnectionReason.ModVersionMismatch, $"{ packet.ModVersion };{ Config.ModVersion }");
                 return;
             }
 
             if (packet.GameVersionSig != GameConfig.gameVersion.sig)
             {
-                conn.Disconnect(DisconnectionReason.GameVersionMismatch);
+                conn.Disconnect(DisconnectionReason.GameVersionMismatch, $"{ packet.GameVersionSig };{ GameConfig.gameVersion.sig }");
                 return;
             }
 

NebulaModel/Config.cs

@@ -5,7 +5,7 @@ namespace NebulaModel
     public static class Config
     {
         public static PluginInfo ModInfo { get; set; }
-        public static System.Version ModVersion => ModInfo.Metadata.Version;
+        public static string ModVersion => ThisAssembly.AssemblyInformationalVersion;
         public static int DefaultPort => 8469;
     }
 }

NebulaModel/Networking/NebulaConnection.cs

@@ -1,5 +1,6 @@
 using NebulaModel.Logger;
 using NebulaModel.Networking.Serialization;
+using System;
 using System.Net;
 using WebSocketSharp;
 
@@ -44,9 +45,23 @@ public void SendRawPacket(byte[] rawData)
             }
         }
 
-        public void Disconnect(DisconnectionReason reason = DisconnectionReason.Normal)
+        public void Disconnect(DisconnectionReason reason = DisconnectionReason.Normal, string reasonString = null)
         {
-            peerSocket.Close((ushort)reason);
+            if(string.IsNullOrEmpty(reasonString))
+            {
+                peerSocket.Close((ushort)reason);
+            }
+            else
+            {
+                if (System.Text.Encoding.UTF8.GetBytes(reasonString).Length <= 123)
+                {
+                    peerSocket.Close((ushort)reason, reasonString);
+                }
+                else
+                {
+                    throw new ArgumentException("Reason string cannot take up more than 123 bytes");
+                }
+            }
         }
 
         public static bool operator ==(NebulaConnection left, NebulaConnection right)

NebulaModel/Packets/Session/HandshakeRequest.cs

@@ -12,7 +12,7 @@ public HandshakeRequest() { }
         public HandshakeRequest(byte[] clientCert, string username)
         {
             this.Username = username;
-            this.ModVersion = Config.ModVersion.ToString();
+            this.ModVersion = Config.ModVersion;
             this.GameVersionSig = GameConfig.gameVersion.sig;
             this.ClientCert = clientCert;
         }