Auto fetch master server address

Client/Menus/Sub/ServersMenu.cs

@@ -77,26 +77,9 @@ namespace RageCoop.Client.Menus
         private static void GetAllServers()
         {
             List<ServerListClass> serverList = null;
-            try
+            var realUrl = Main.Settings.MasterServer=="[AUTO]" ? DownloadString("https://ragecoop.online/stuff/masterserver") : Main.Settings.MasterServer;
-            {
+            serverList = JsonConvert.DeserializeObject<List<ServerListClass>>(DownloadString(realUrl));
-                // TLS only
-                ServicePointManager.Expect100Continue = true;
-                ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls13 | SecurityProtocolType.Tls12;
-                ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
             
-                WebClient client = new WebClient();
-                string data = client.DownloadString(Main.Settings.MasterServer);
-                serverList = JsonConvert.DeserializeObject<List<ServerListClass>>(data);
-            }
-            catch (Exception ex)
-            {
-                Main.QueueAction(() =>
-                {
-                    ResultItem.Title = "Download failed!";
-                    ResultItem.Description = ex.Message;
-                });
-                return;
-            }
             // Need to be processed in main thread
             Main.QueueAction(() =>
             {
@@ -139,5 +122,27 @@ namespace RageCoop.Client.Menus
                 }
             });
         }
+        private static string DownloadString(string url)
+        {
+            try
+            {
+                // TLS only
+                ServicePointManager.Expect100Continue = true;
+                ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls13 | SecurityProtocolType.Tls12;
+                ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
+
+                WebClient client = new WebClient();
+                return client.DownloadString(url);
+            }
+            catch (Exception ex)
+            {
+                Main.QueueAction(() =>
+                {
+                    ResultItem.Title = "Download failed!";
+                    ResultItem.Description = ex.Message;
+                });
+                return "";
+            }
+        }
     }
 }

Client/Settings.cs

@@ -18,7 +18,7 @@ namespace RageCoop.Client
         /// <summary>
         /// Don't use it!
         /// </summary>
-        public string MasterServer { get; set; } = "https://masterserver.ragecoop.online/";
+        public string MasterServer { get; set; } = "[AUTO]";
         /// <summary>
         /// Don't use it!
         /// </summary>

Client/Sync/Entities/SyncedVehicle.cs

@@ -129,15 +129,15 @@ namespace RageCoop.Client
             if (MainVehicle.Position.DistanceTo(Position)<5)
             {
                 MainVehicle.Velocity = Velocity+5*(Position+Velocity*SyncParameters.PositioinPredictionDefault - MainVehicle.Position);
-                _lastPositionCalibrated=Main.Counter.ElapsedMilliseconds;
+                MainVehicle.Quaternion=Quaternion.Slerp(MainVehicle.Quaternion, Quaternion, 0.35f);
             }
             else
             {
                 MainVehicle.Position=Position;
                 MainVehicle.Velocity=Velocity;
+                MainVehicle.Quaternion=Quaternion;
             }
             // Vector3 r = GetCalibrationRotation();
-            MainVehicle.Quaternion=Quaternion.Slerp(MainVehicle.Quaternion, Quaternion, 0.35f);
             MainVehicle.RotationVelocity = RotationVelocity;
             if (DeluxoWingRatio!=-1)
             {

Core/CoreUtils.cs

@@ -4,6 +4,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using GTA.Math;
+using System.Net;
 namespace RageCoop.Core
 {
     public class CoreUtils
@@ -35,6 +36,7 @@ namespace RageCoop.Core
                     return (0x0, null);
             }
         }
+
     }
     public static class Extensions
     {

Server/Server.cs

@@ -110,7 +110,7 @@ namespace RageCoop.Server
                             Program.Logger.Error(ex.InnerException?.Message ?? ex.Message);
                             return;
                         }
-
+                        var realMaster  = MainSettings.MasterServer=="[AUTO]" ? Util.DownloadString("https://ragecoop.online/stuff/masterserver") : MainSettings.MasterServer;
                         while (!Program.ReadyToStop)
                         {
                             string msg =
@@ -125,7 +125,7 @@ namespace RageCoop.Server
                             HttpResponseMessage response = null;
                             try
                             {
-                                response = await httpClient.PostAsync(MainSettings.MasterServer, new StringContent(msg, Encoding.UTF8, "application/json"));
+                                response = await httpClient.PostAsync(realMaster, new StringContent(msg, Encoding.UTF8, "application/json"));
                             }
                             catch (Exception ex)
                             {

Server/Settings.cs

@@ -10,7 +10,7 @@
         public string Resource { get; set; } = "";
         public bool UPnP { get; set; } = true;
         public bool AnnounceSelf { get; set; } = false;
-        public string MasterServer { get; set; } = "https://masterserver.ragecoop.online/";
+        public string MasterServer { get; set; } = "[AUTO]";
         public bool DebugMode { get; set; } = false;
         /// <summary>
         /// NPC data won't be sent to a player if their distance is greater than this value. -1 for unlimited.

Server/Util.cs

@@ -6,11 +6,30 @@ using System.Linq;
 using System.Collections.Generic;
 using RageCoop.Core;
 using Lidgren.Network;
+using System.Net;
 
 namespace RageCoop.Server
 {
     static partial class Util
     {
+
+        public static string DownloadString(string url)
+        {
+            try
+            {
+                // TLS only
+                ServicePointManager.Expect100Continue = true;
+                ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls13 | SecurityProtocolType.Tls12;
+                ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
+
+                WebClient client = new();
+                return client.DownloadString(url);
+            }
+            catch
+            {
+                return "";
+            }
+        }
         public static (byte, byte[]) GetBytesFromObject(object obj)
         {
             return obj switch