user authentication

src/CommandHandlers/ChatMessageHandler.cs

@@ -26,11 +26,13 @@ class ChatMessageHandler : ICommandHandler {
     }
 
     public void Chat(Client client, NetworkObject receivedObject) {
+        if (client.PlayerData.DiplayName == "")
+            return;
         string message = receivedObject.Get<NetworkObject>("p").Get<string>("chm");
 
         NetworkObject cmd = new();
         NetworkObject data = new();
-        data.Add("arr", new string[] { "CMR", "-1", client.PlayerData.Uid, "1", message, "", "1", "placeholder" });
+        data.Add("arr", new string[] { "CMR", "-1", client.PlayerData.Uid, "1", message, "", "1", client.PlayerData.DiplayName });
         cmd.Add("c", "CMR");
         cmd.Add("p", data);
 

src/CommandHandlers/LoginHandler.cs

@@ -1,6 +1,7 @@
 using sodoffmmo.Attributes;
 using sodoffmmo.Core;
 using sodoffmmo.Data;
+using sodoffmmo.Management;
 
 namespace sodoffmmo.CommandHandlers;
 
@@ -10,6 +11,14 @@ class LoginHandler : ICommandHandler
     public void Handle(Client client, NetworkObject receivedObject)
     {
         client.PlayerData.UNToken = receivedObject.Get<string>("un");
+        if (!ValidToken(client)) {
+            NetworkObject obj = new();
+            obj.Add("dr", (byte)1);
+            client.Send(NetworkObject.WrapObject(0, 1005, obj).Serialize());
+            client.ScheduleDisconnect();
+            return;
+        }
+
         NetworkArray rl = new();
 
         NetworkArray r1 = new();
@@ -60,4 +69,36 @@ class LoginHandler : ICommandHandler
 
         client.Send(NetworkObject.WrapObject(0, 1, content).Serialize());
     }
+
+    private bool ValidToken(Client client) {
+        if (!Configuration.ServerConfiguration.Authentication ||
+            (client.PlayerData.UNToken == Configuration.ServerConfiguration.BypassToken && !string.IsNullOrEmpty(Configuration.ServerConfiguration.BypassToken)))
+            return true;
+        try {
+            HttpClient httpClient = new();
+            var content = new FormUrlEncodedContent(
+                new Dictionary<string, string> {
+                    { "token", client.PlayerData.UNToken },
+            });
+
+            httpClient.Timeout = new TimeSpan(0, 0, 3);
+            var response = httpClient.PostAsync($"{Configuration.ServerConfiguration.ApiUrl}/Authentication/MMOAuthentication", content).Result;
+            string? responseString = response.Content.ReadAsStringAsync().Result;
+
+            if (response.StatusCode != System.Net.HttpStatusCode.OK)
+                return false;
+            if (responseString == null)
+                throw new Exception("Response string null");
+            Console.WriteLine(responseString);
+            AuthenticationInfo info = Utils.DeserializeXml<AuthenticationInfo>(responseString);
+            if (info.Authenticated) {
+                client.PlayerData.DiplayName = info.DisplayName;
+                client.PlayerData.Role = info.Role;
+                return true;
+            }
+        } catch (Exception ex) {
+            Console.WriteLine($"Authentication exception IID: {client.ClientID} - {ex}");
+        }
+        return false;
+    }
 }

src/CommandHandlers/SetPositionVariablesHandler.cs

@@ -12,7 +12,7 @@ class SetPositionVariablesHandler : ICommandHandler {
         if (client.Room == null) {
             Console.WriteLine($"SPV Missing Room IID: {client.ClientID}");
             client.Send(NetworkObject.WrapObject(0, 1006, new NetworkObject()).Serialize());
-            client.SheduleDisconnect();
+            client.ScheduleDisconnect();
             return;
         }
         this.client = client;

src/CommandHandlers/SetUserVariablesHandler.cs

@@ -14,7 +14,7 @@ class SetUserVariablesHandler : ICommandHandler {
         if (client.Room == null) {
             Console.WriteLine($"SUV Missing Room IID: {client.ClientID}");
             client.Send(NetworkObject.WrapObject(0, 1006, new NetworkObject()).Serialize());
-            client.SheduleDisconnect();
+            client.ScheduleDisconnect();
             return;
         }
         this.client = client;

src/Core/Client.cs

@@ -40,7 +40,7 @@ public class Client {
         try {
             socket.Send(packet.SendData);
         } catch (SocketException) {
-            SheduleDisconnect();
+            ScheduleDisconnect();
         }
     }
 
@@ -91,7 +91,7 @@ public class Client {
         }
     }
 
-    public void SheduleDisconnect() {
+    public void ScheduleDisconnect() {
         if (Room != null) {
             // quiet remove from room (to avoid issues in Room.Send)
             //  - do not change Room value here

src/Core/Configuration.cs

@@ -20,6 +20,9 @@ internal static class Configuration {
             return;
 
         ServerConfiguration = serverConfiguration;
+        if (string.IsNullOrEmpty(ServerConfiguration.ApiUrl)) {
+            ServerConfiguration.Authentication = false;
+        }
     }
 }
 
@@ -33,4 +36,7 @@ internal sealed class ServerConfiguration {
     public int RacingMainLobbyTimer { get; set; } = 15;
     public bool EnableChat { get; set; } = true;
     public bool AllowChaos { get; set; } = false;
+    public bool Authentication { get; set; } = false;
+    public string ApiUrl { get; set; } = "";
+    public string BypassToken { get; set; } = "";
 }

src/Core/Utils.cs

@@ -4,8 +4,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
-
+using System.Xml.Serialization;
-using sodoffmmo.Data;
 
 namespace sodoffmmo.Core;
 internal static class Utils {
@@ -33,4 +32,10 @@ internal static class Utils {
             ret.Add("r", (int)roomID);
         return ret.Serialize();
     }
+
+    public static T DeserializeXml<T>(string xmlString) {
+        var serializer = new XmlSerializer(typeof(T));
+        using (var reader = new StringReader(xmlString))
+            return (T)serializer.Deserialize(reader);
+    }
 }

src/Data/PlayerData.cs

@@ -1,5 +1,6 @@
 using System.Text.RegularExpressions;
 using sodoffmmo.Core;
+using sodoffmmo.Management;
 
 namespace sodoffmmo.Data;
 public class PlayerData {
@@ -60,6 +61,9 @@ public class PlayerData {
     // membership status
     public string M { get; set; } = "True";
 
+    public string DiplayName { get; set; } = "";
+    public Role Role { get; set; } = Role.User;
+
     public NetworkArray GetNetworkData(int clientID, out NetworkArray paramArr) {
         NetworkArray arr = new();
         arr.Add(clientID);

src/Management/AuthenticationInfo.cs

@@ -0,0 +1,20 @@
+using System.Xml.Serialization;
+
+namespace sodoffmmo.Management;
+
+[Serializable]
+public class AuthenticationInfo {
+    [XmlElement]
+    public bool Authenticated { get; set; }
+
+    [XmlElement]
+    public string DisplayName { get; set; }
+
+    [XmlElement]
+    public Role Role { get; set; }
+}
+
+[Serializable]
+public enum Role {
+    User, Admin, Moderator
+}