need server and core webapp to work at same time for testing purposes

# Conflicts:
#	RelayClient/MainPage.xaml.cs

RelayClient/MainPage.xaml.cs

@@ -1,18 +1,17 @@
-using RelayClient.Crypto;
+using System.Text.Json.Serialization;
-using WebSocketSharp;
+using RelayClient.Crypto;
-using System.Text.Json;
+using RelayClient.Services;
-using System.Text.Json.Serialization;
 using RelayShared.Rtc;
 using RelayShared.Services;
 
 namespace RelayClient;
 
-
 public partial class MainPage : ContentPage
 {
     private readonly string _username;
-    private readonly WebSocket _wsc;
+    private readonly RelaySocketClient _socket;
-    private string? _serverPublicKey;
+    private readonly RtcBridgeService _rtc;
+
     private string? _currentChannelId;
     private string? _currentChannelName;
 
@@ -33,19 +32,31 @@ public partial class MainPage : ContentPage
             KeyStorage.SavePublicKey(_username, keys.publicKey);
         }
 
-        _wsc = new WebSocket("ws://localhost:1337/");
-
-        _wsc.OnMessage += WscOnMessage;
-        _wsc.Connect();
-
-        var publicKey = KeyStorage.LoadPublicKey(_username);
-        _wsc.Send($"REGISTER_KEY|{_username}|{publicKey}");
-        _wsc.Send("GET_SERVER_KEY");
-        _wsc.Send("GET_CHANNELS");
-
-        hybridWebView.SetInvokeJavaScriptTarget(this);
         ServerAPI.setupClient();
 
+        _socket = new RelaySocketClient(_username);
+        _rtc = new RtcBridgeService(
+            _username,
+            _socket,
+            hybridWebView,
+            () => _currentChannelId,
+            SafeSendRawToWebView
+        );
+        
+        hybridWebView.SetInvokeJavaScriptTarget(_rtc);
+
+        _socket.Log += Console.WriteLine;
+        _socket.ChannelListReceived += HandleChannelList;
+        _socket.EncryptedChatReceived += HandleEncryptedChat;
+        _socket.EncryptedRtcSignalReceived += payload =>
+        {
+            MainThread.BeginInvokeOnMainThread(async () =>
+            {
+                await _rtc.HandleIncomingRtcSignalAsync(payload);
+            });
+        };
+
+        _socket.Connect();
     }
 
     private void SendButton_OnClicked(object? sender, EventArgs e)
@@ -65,7 +76,7 @@ public partial class MainPage : ContentPage
         if (string.IsNullOrWhiteSpace(text))
             return;
 
-        if (string.IsNullOrWhiteSpace(_serverPublicKey))
+        if (string.IsNullOrWhiteSpace(_socket.ServerPublicKey))
         {
             Console.WriteLine("Server public key not loaded yet.");
             return;
@@ -77,7 +88,7 @@ public partial class MainPage : ContentPage
             return;
         }
 
-        var encrypted = E2EeHelper.EncryptForRecipient(text, _serverPublicKey);
+        var encrypted = E2EeHelper.EncryptForRecipient(text, _socket.ServerPublicKey);
 
         var payload = new SocketEncryptedMessage
         {
@@ -90,8 +101,7 @@ public partial class MainPage : ContentPage
             EncryptedKey = encrypted.EncryptedKey
         };
 
-        var json = JsonSerializer.Serialize(payload);
+        _socket.SendJson(payload);
-        _wsc.Send(json);
 
         Console.WriteLine($"[{_username}] sent encrypted message.");
 
@@ -99,179 +109,83 @@ public partial class MainPage : ContentPage
         MessageEntry.Focus();
     }
 
-    private void WscOnMessage(object? sender, MessageEventArgs e)
+    private void HandleChannelList(SocketChannelList channelList)
     {
-        if (e.Data.StartsWith("SERVER:REGISTERED_KEY:"))
+        _channels.Clear();
+        _channels.AddRange(channelList.Channels.OrderBy(c => c.CreatedAt));
+
+        var defaultChannel = _channels
+                                 .Where(c => c.Name.Equals("welcome", StringComparison.OrdinalIgnoreCase))
+                                 .OrderBy(c => c.CreatedAt)
+                                 .FirstOrDefault()
+                             ?? _channels.OrderBy(c => c.CreatedAt).FirstOrDefault();
+
+        if (defaultChannel is null) return;
+
+        _currentChannelId = defaultChannel.ChannelId;
+        _currentChannelName = defaultChannel.Name;
+
+        MainThread.BeginInvokeOnMainThread(async () =>
         {
-            Console.WriteLine(e.Data);
+            ChannelLabel.Text = $"#{_currentChannelName}";
+            RenderChannelList();
+            await _rtc.PushRtcContextToJsAsync();
+        });
+
+        _socket.SendRaw($"GET_HISTORY|{_username}|{_currentChannelId}");
+    }
+
+    private void HandleEncryptedChat(SocketEncryptedMessage payload) {
+        if (payload.RecipientUsername != _username)
             return;
-        }
 
-        // SafeSendRawToWebView($"[{_username}] RAW WS DATA: {e.Data}");
+        string decryptedText;
-
-        Console.WriteLine($"[{_username}] RAW WS DATA: {e.Data}");
 
         try
         {
-            using var doc = JsonDocument.Parse(e.Data);
+            var privateKey = KeyStorage.LoadPrivateKey(_username);
-            var root = doc.RootElement;
 
-            if (!root.TryGetProperty("Type", out var typeElement))
+            decryptedText = E2EeHelper.DecryptForRecipient(
-                return;
-
-            var type = (SignalType)typeElement.GetInt32();
-
-            if (type == SignalType.ChannelList)
-            {
-                var channelList = JsonSerializer.Deserialize<SocketChannelList>(e.Data);
-                if (channelList is null)
-                    return;
-
-                _channels.Clear();
-                _channels.AddRange(channelList.Channels.OrderBy(c => c.CreatedAt));
-
-                var defaultChannel = _channels
-                                         .Where(c => c.Name.Equals("welcome", StringComparison.OrdinalIgnoreCase))
-                                         .OrderBy(c => c.CreatedAt)
-                                         .FirstOrDefault()
-                                     ?? _channels.OrderBy(c => c.CreatedAt).FirstOrDefault();
-
-                if (defaultChannel is not null)
-                {
-                    _currentChannelId = defaultChannel.ChannelId;
-                    _currentChannelName = defaultChannel.Name;
-
-                    MainThread.BeginInvokeOnMainThread(async () =>
-                    {
-                        ChannelLabel.Text = $"#{_currentChannelName}";
-                        RenderChannelList();
-                        await PushRtcContextToJsAsync();
-                    });
-
-                    _wsc.Send($"GET_HISTORY|{_username}|{_currentChannelId}");
-                }
-
-                return;
-            }
-
-            if (type == SignalType.ServerPublicKey)
-            {
-                var serverKeyMessage = JsonSerializer.Deserialize<ServerPublicKeyMessage>(e.Data);
-                if (serverKeyMessage is not null)
-                {
-                    _serverPublicKey = serverKeyMessage.PublicKey;
-                    Console.WriteLine($"[{_username}] loaded server public key.");
-                }
-
-                return;
-            }
-
-            if (type == SignalType.EncryptedSignal)
-            {
-                var payload = JsonSerializer.Deserialize<SocketRtcSignalMessage>(e.Data);
-                if (payload is null)
-                    return;
-
-                if (payload.ChannelId != _currentChannelId)
-                    return;
-
-                if (payload.SenderUsername == _username)
-                    return;
-
-                var privateKey = KeyStorage.LoadPrivateKey(_username);
-
-                var decryptedJson = E2EeHelper.DecryptForRecipient(
-                    new EncryptedPayload
-                    {
-                        CipherText = payload.CipherText,
-                        Nonce = payload.Nonce,
-                        Tag = payload.Tag,
-                        EncryptedKey = payload.EncryptedKey
-                    },
-                    privateKey
-                );
-
-                var rtcSignal = JsonSerializer.Deserialize<RtcSignalMessage>(decryptedJson);
-
-                if (rtcSignal is null)
-                    return;
-
-                if (!string.IsNullOrWhiteSpace(rtcSignal.To) &&
-                    !string.Equals(rtcSignal.To, _username, StringComparison.OrdinalIgnoreCase))
-                {
-                    SafeSendRawToWebView($"Ignoring RTC signal meant for {rtcSignal.To}");
-                    return;
-                }
-
-                SafeSendRawToWebView("Received encrypted RTC signal: " + decryptedJson);
-
-                MainThread.BeginInvokeOnMainThread(async () =>
-                {
-                    await SendRtcSignalToJsAsync(decryptedJson);
-                });
-
-                return;
-            }
-
-            if (type != SignalType.EncryptedChat)
-                return;
-
-            var pyload = JsonSerializer.Deserialize<SocketEncryptedMessage>(e.Data);
-            if (pyload is null)
-                return;
-
-            if (pyload.RecipientUsername != _username)
-                return;
-
-            Console.WriteLine($"[{_username}] received encrypted payload for {pyload.RecipientUsername}");
-
-            var privKey = KeyStorage.LoadPrivateKey(_username);
-
-            var decryptedText = E2EeHelper.DecryptForRecipient(
                 new EncryptedPayload
                 {
-                    CipherText = pyload.CipherText,
+                    CipherText = payload.CipherText,
-                    Nonce = pyload.Nonce,
+                    Nonce = payload.Nonce,
-                    Tag = pyload.Tag,
+                    Tag = payload.Tag,
-                    EncryptedKey = pyload.EncryptedKey
+                    EncryptedKey = payload.EncryptedKey
                 },
-                privKey
+                privateKey
-            );
+            ); 
-
-            Console.WriteLine($"[{_username}] decrypted message from {pyload.SenderUsername}: {decryptedText}");
-
-            var message = new ChatMessage
-            {
-                SenderUsername = pyload.SenderUsername,
-                Text = decryptedText,
-                Timestamp = DateTime.Now
-            };
-
-            if (!_messagesByChannel.ContainsKey(pyload.ChannelId))
-            {
-                _messagesByChannel[pyload.ChannelId] = [];
-            }
-
-            _messagesByChannel[pyload.ChannelId].Add(message);
-
-            if (pyload.ChannelId == _currentChannelId)
-            {
-                MainThread.BeginInvokeOnMainThread(() =>
-                {
-                    RenderSingleMessage(message);
-                });
-            }
         }
         catch (Exception ex)
         {
-            Console.WriteLine($"[{_username}] failed to process websocket message: {ex.Message}");
+            Console.WriteLine($"[{_username}] failed to decrypt chat: {ex.Message}");
+            return;
+        }
+
+        var message = new ChatMessage
+        {
+            SenderUsername = payload.SenderUsername,
+            Text = decryptedText,
+            Timestamp = DateTime.Now
+        };
+
+        if (!_messagesByChannel.ContainsKey(payload.ChannelId))
+            _messagesByChannel[payload.ChannelId] = [];
+
+        _messagesByChannel[payload.ChannelId].Add(message);
+
+        if (payload.ChannelId == _currentChannelId)
+        {
+            MainThread.BeginInvokeOnMainThread(() =>
+            {
+                RenderSingleMessage(message);
+            });
         }
     }
 
     protected override void OnDisappearing()
     {
-        _wsc.OnMessage -= WscOnMessage;
+        _socket.Disconnect();
-        _wsc.Close();
         base.OnDisappearing();
     }
 
@@ -295,11 +209,14 @@ public partial class MainPage : ContentPage
 
                 MainThread.BeginInvokeOnMainThread(async () =>
                 {
-                    await PushRtcContextToJsAsync();
+                    await _rtc.PushRtcContextToJsAsync();
+
                     if (channel.Type == ChannelType.Voice)
                     {
-                        SwapView();
+                        if (!RtcView.IsVisible)
-                        _ = JoinRtcChannel(); //TODO: Join voice calls when clicking channel rather than a separate button
+                            SwapView();
+
+                        _ = _rtc.JoinRtcChannel();
                     }
                 });
 
@@ -307,9 +224,7 @@ public partial class MainPage : ContentPage
                 RenderCurrentChannelMessages();
 
                 if (!_messagesByChannel.ContainsKey(channel.ChannelId))
-                {
+                    _socket.SendRaw($"GET_HISTORY|{_username}|{channel.ChannelId}");
-                    _wsc.Send($"GET_HISTORY|{_username}|{channel.ChannelId}");
-                }
             };
 
             SidebarList.Children.Add(button);
@@ -334,7 +249,7 @@ public partial class MainPage : ContentPage
 
     private async void RenderSingleMessage(ChatMessage message)
     {
-        bool isOwnMessage = message.SenderUsername == _username;
+        var isOwnMessage = message.SenderUsername == _username;
 
         var bubble = new Border
         {
@@ -369,7 +284,6 @@ public partial class MainPage : ContentPage
             MessagesScrollView.IsVisible = true;
             RtcView.IsVisible = false;
             ViewSwapped.Text = "Swap to Web View";
-
         }
         else
         {
@@ -384,154 +298,17 @@ public partial class MainPage : ContentPage
         SwapView();
     }
 
-    #region RTC Functions
-
-    public Task JoinRtcChannel()
-    {
-        if (string.IsNullOrWhiteSpace(_currentChannelId))
-            return Task.CompletedTask;
-
-        _wsc.Send($"RTC_JOIN_CHANNEL|{_username}|{_currentChannelId}");
-        return Task.CompletedTask;
-    }
-
-    public void LeaveRtcChannel()
-    {
-        if (string.IsNullOrWhiteSpace(_currentChannelId))
-            return;
-
-        _wsc.Send($"RTC_LEAVE_CHANNEL|{_username}|{_currentChannelId}");
-    }
-
-    public void SendRtcSignal(string json)
-    {
-        if (string.IsNullOrWhiteSpace(_serverPublicKey))
-        {
-            SafeSendRawToWebView("SendRtcSignal failed: server public key not loaded.");
-            return;
-        }
-
-        RtcSignalMessage? rtcSignal;
-
-        try
-        {
-            rtcSignal = JsonSerializer.Deserialize<RtcSignalMessage>(json);
-        }
-        catch (Exception ex)
-        {
-            SafeSendRawToWebView("SendRtcSignal failed to parse RTC signal: " + ex.Message);
-            return;
-        }
-
-        if (rtcSignal is null)
-            return;
-
-        if (string.IsNullOrWhiteSpace(rtcSignal.ChannelId))
-            rtcSignal.ChannelId = _currentChannelId;
-
-        if (string.IsNullOrWhiteSpace(rtcSignal.From))
-            rtcSignal.From = _username;
-
-        if (string.IsNullOrWhiteSpace(rtcSignal.ChannelId))
-        {
-            SafeSendRawToWebView("SendRtcSignal failed: missing channel id.");
-            return;
-        }
-
-        var outgoingJson = JsonSerializer.Serialize(rtcSignal);
-
-        try
-        {
-            var encrypted = E2EeHelper.EncryptForRecipient(outgoingJson, _serverPublicKey);
-
-            var payload = new SocketRtcSignalMessage
-            {
-                Type = SignalType.EncryptedSignal,
-                SenderUsername = _username,
-                ChannelId = rtcSignal.ChannelId,
-                CipherText = encrypted.CipherText,
-                Nonce = encrypted.Nonce,
-                Tag = encrypted.Tag,
-                EncryptedKey = encrypted.EncryptedKey
-            };
-
-            _wsc.Send(JsonSerializer.Serialize(payload));
-
-            SafeSendRawToWebView($"SendRtcSignal sent: {rtcSignal.Type} -> {rtcSignal.To}");
-        }
-        catch (Exception ex)
-        {
-            SafeSendRawToWebView("SendRtcSignal failed: " + ex.Message);
-        }
-    }
-
-    public async Task<string> GetRtcParticipants()
-    {
-        if (string.IsNullOrWhiteSpace(_currentChannelId))
-            return "[]";
-
-        var participants = await ServerAPI.GetRtcParticipantsAsync(_currentChannelId);
-        return JsonSerializer.Serialize(participants ?? []);
-    }
-
-    private Task SendRtcSignalToJsAsync(string rawJson)
-    {
-        MainThread.BeginInvokeOnMainThread(async () =>
-        {
-            try
-            {
-                var jsArg = JsonSerializer.Serialize(rawJson);
-
-                await hybridWebView.EvaluateJavaScriptAsync($@"
-                try {{
-                    window.HybridWebView.SendRawMessage('C# eval entered');
-
-                    if (!window.RelaySocket) {{
-                        window.HybridWebView.SendRawMessage('window.RelaySocket missing');
-                    }} else if (typeof window.RelaySocket.receiveRtcSignal !== 'function') {{
-                        window.HybridWebView.SendRawMessage('RelaySocket.receiveRtcSignal missing');
-                    }} else {{
-                        window.HybridWebView.SendRawMessage('Calling RelaySocket.receiveRtcSignal');
-                        window.RelaySocket.receiveRtcSignal({jsArg});
-                    }}
-                }} catch (err) {{
-                    window.HybridWebView.SendRawMessage('RTC JS dispatch failed: ' + err);
-                }}
-            ");
-            }
-            catch (Exception ex)
-            {
-                SafeSendRawToWebView("SendRtcSignalToJsAsync failed: " + ex.Message);
-            }
-        });
-
-        return Task.CompletedTask;
-    }
-
-    private async Task PushRtcContextToJsAsync()
-    {
-        var usernameJson = JsonSerializer.Serialize(_username);
-        var channelIdJson = JsonSerializer.Serialize(_currentChannelId);
-
-        await hybridWebView.EvaluateJavaScriptAsync($"window.setUsername({usernameJson})");
-        await hybridWebView.EvaluateJavaScriptAsync($"window.setChannelId({channelIdJson})");
-
-        Console.WriteLine($"[{_username}] pushed RTC context into HybridWebView.");
-    }
-
-    #endregion
-
     private async void OnHybridWebViewRawMessageReceived(object sender, HybridWebViewRawMessageReceivedEventArgs e)
     {
         if (e.Message == "rtc_page_ready")
         {
-            await PushRtcContextToJsAsync();
+            await _rtc.PushRtcContextToJsAsync();
             return;
         }
 
         SafeSendRawToWebView($"JS RAW -> C#: {e.Message}");
     }
-    
+
     private void SafeSendRawToWebView(string message)
     {
         MainThread.BeginInvokeOnMainThread(() =>
@@ -550,9 +327,9 @@ public partial class MainPage : ContentPage
     public class ChannelButton : Button
     {
         public ChannelType Type { get; set; }
-        public string Group { get; set; }
+        public string Group { get; set; } = string.Empty;
     }
-    
+
     [JsonSourceGenerationOptions(WriteIndented = false)]
     [JsonSerializable(typeof(RtcDescription))]
     [JsonSerializable(typeof(List<RtcSignalMessage>))]
@@ -561,8 +338,5 @@ public partial class MainPage : ContentPage
     [JsonSerializable(typeof(string))]
     internal partial class HybridJSType : JsonSerializerContext
     {
-        // This type's attributes specify JSON serialization info to preserve type structure
-        // for trimmed builds.
     }
-    
 }

RelayClient/Resources/Raw/wwwroot/index.js

@@ -49,4 +49,23 @@ window.addEventListener("load", async () => {
     Media.wireDeviceSelectors();
     await Media.loadDevices();
     await Media.ensureLocalMedia();
-});
+});
+
+function testIndex(rawJson)
+{
+    const data = typeof rawJson === "string" ? JSON.parse(rawJson) : rawJson;
+    data.sdp = data.sdp.replaceAll("(rn)", "\r\n");
+    handleRtcSignal(JSON.stringify(data));
+    // if (data.type === "rtc_offer") {
+    //     handleOffer(data)
+    // }
+    // if (data.type === "rtc_answer") {
+    //     data.sdp = data.sdp.replaceAll("(rn)", "\r\n");
+    //     handleAnswer(data)
+    // }
+}
+
+function noDataTest()
+{
+    LogMessage("No Data Called!!");
+}

RelayClient/Resources/Raw/wwwroot/rtc.js

@@ -1,4 +1,4 @@
-const peerConnections = {};
+const peerConnections = {};
 
 async function joinChannelCall() {
     LogMessage("Current username: " + currentUsername);
@@ -24,7 +24,7 @@ async function joinChannelCall() {
     }
 
     for (const username of existingUsers) {
-        await sendOffer(username);
+        await sendOffer(username); //Creates an offer to each person in call for MESH RTC
     }
 }
 
@@ -34,6 +34,7 @@ async function sendOffer(username) {
     await Media.applyLocalStreamToPeerConnection(pc, username);
 
     const offer = await pc.createOffer();
+    // LogMessage(`Offer created: ${JSON.stringify(offer)}`);
     await pc.setLocalDescription(offer);
 
     await RelaySocket.sendRtcSignal({
@@ -88,11 +89,12 @@ async function handleRtcSignal(rawJson) {
 }
 
 async function handleOffer(msg) {
+    LogMessage(`Offer handler: ${msg}`);
     const pc = await ensurePeerConnectionForUser(msg.from);
 
     await Media.ensureLocalMedia();
     await Media.applyLocalStreamToPeerConnection(pc, msg.from);
-
+    // const offer = JSON.parse(msg.offer);
     await pc.setRemoteDescription({
         type: "offer",
         sdp: msg.sdp

RelayClient/Services/RelaySocketClient.cs

@@ -0,0 +1,127 @@
+using System.Text.Json;
+using RelayClient.Crypto;
+using RelayShared.Services;
+using WebSocketSharp;
+
+namespace RelayClient.Services;
+
+public sealed class RelaySocketClient
+{
+    private readonly string _username;
+    private readonly WebSocket _socket;
+
+    public string? ServerPublicKey { get; private set; }
+
+    public event Action<string>? RawMessageReceived;
+    public event Action<SocketChannelList>? ChannelListReceived;
+    public event Action<SocketEncryptedMessage>? EncryptedChatReceived;
+    public event Action<SocketRtcSignalMessage>? EncryptedRtcSignalReceived;
+    public event Action<string>? ServerPublicKeyReceived;
+    public event Action<string>? Log;
+
+    public RelaySocketClient(string username, string url = "ws://localhost:1337/")
+    {
+        _username = username;
+        _socket = new WebSocket(url);
+        _socket.OnMessage += OnMessage;
+    }
+
+    public void Connect()
+    {
+        _socket.Connect();
+
+        var publicKey = KeyStorage.LoadPublicKey(_username);
+
+        SendRaw($"REGISTER_KEY|{_username}|{publicKey}");
+        SendRaw("GET_SERVER_KEY");
+        SendRaw("GET_CHANNELS");
+    }
+
+    public void SendRaw(string message)
+    {
+        if (_socket.ReadyState == WebSocketState.Open)
+            _socket.Send(message);
+    }
+
+    public void SendJson<T>(T payload)
+    {
+        SendRaw(JsonSerializer.Serialize(payload));
+    }
+
+    public void Disconnect()
+    {
+        _socket.OnMessage -= OnMessage;
+
+        if (_socket.ReadyState == WebSocketState.Open)
+            _socket.Close();
+    }
+
+    private void OnMessage(object? sender, MessageEventArgs e)
+    {
+        if (e.Data.StartsWith("SERVER:REGISTERED_KEY:"))
+        {
+            Log?.Invoke(e.Data);
+            return;
+        }
+
+        RawMessageReceived?.Invoke(e.Data);
+        Log?.Invoke($"[{_username}] RAW WS DATA: {e.Data}");
+
+        try
+        {
+            using var doc = JsonDocument.Parse(e.Data);
+            var root = doc.RootElement;
+
+            if (!root.TryGetProperty("Type", out var typeElement))
+                return;
+
+            var type = (SignalType)typeElement.GetInt32();
+
+            switch (type)
+            {
+                case SignalType.ChannelList:
+                {
+                    var channelList = JsonSerializer.Deserialize<SocketChannelList>(e.Data);
+                    if (channelList is not null)
+                        ChannelListReceived?.Invoke(channelList);
+
+                    return;
+                }
+
+                case SignalType.ServerPublicKey:
+                {
+                    var serverKeyMessage = JsonSerializer.Deserialize<ServerPublicKeyMessage>(e.Data);
+                    if (serverKeyMessage is not null)
+                    {
+                        ServerPublicKey = serverKeyMessage.PublicKey;
+                        ServerPublicKeyReceived?.Invoke(serverKeyMessage.PublicKey);
+                    }
+
+                    return;
+                }
+
+                case SignalType.EncryptedSignal:
+                {
+                    var payload = JsonSerializer.Deserialize<SocketRtcSignalMessage>(e.Data);
+                    if (payload is not null)
+                        EncryptedRtcSignalReceived?.Invoke(payload);
+
+                    return;
+                }
+
+                case SignalType.EncryptedChat:
+                {
+                    var payload = JsonSerializer.Deserialize<SocketEncryptedMessage>(e.Data);
+                    if (payload is not null)
+                        EncryptedChatReceived?.Invoke(payload);
+
+                    return;
+                }
+            }
+        }
+        catch (Exception ex)
+        {
+            Log?.Invoke($"[{_username}] failed to process websocket message: {ex.Message}");
+        }
+    }
+}

RelayClient/Services/RtcBridgeService.cs

@@ -0,0 +1,255 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using RelayClient.Crypto;
+using RelayShared.Rtc;
+using RelayShared.Services;
+
+namespace RelayClient.Services;
+
+public sealed class RtcBridgeService
+{
+    private readonly string _username;
+    private readonly RelaySocketClient _socket;
+    private readonly HybridWebView _hybridWebView;
+    private readonly Func<string?> _getCurrentChannelId;
+    private readonly Action<string> _sendRawToWebView;
+
+    public RtcBridgeService(string username, RelaySocketClient socket, HybridWebView hybridWebView,
+                            Func<string?> getCurrentChannelId, Action<string> sendRawToWebView)
+    {
+        _username = username;
+        _socket = socket;
+        _hybridWebView = hybridWebView;
+        _getCurrentChannelId = getCurrentChannelId;
+        _sendRawToWebView = sendRawToWebView;
+    }
+
+    public Task JoinRtcChannel()
+    {
+        var channelId = _getCurrentChannelId();
+
+        if (string.IsNullOrWhiteSpace(channelId))
+            return Task.CompletedTask;
+
+        _socket.SendRaw($"RTC_JOIN_CHANNEL|{_username}|{channelId}");
+        return Task.CompletedTask;
+    }
+
+    public void LeaveRtcChannel()
+    {
+        var channelId = _getCurrentChannelId();
+
+        if (string.IsNullOrWhiteSpace(channelId))
+            return;
+
+        _socket.SendRaw($"RTC_LEAVE_CHANNEL|{_username}|{channelId}");
+    }
+
+    public void SendRtcSignal(string json)
+    {
+        if (string.IsNullOrWhiteSpace(_socket.ServerPublicKey))
+        {
+            _sendRawToWebView("SendRtcSignal failed: server public key not loaded.");
+            return;
+        }
+
+        RtcSignalMessage? rtcSignal;
+
+        try
+        {
+            rtcSignal = JsonSerializer.Deserialize<RtcSignalMessage>(json);
+        }
+        catch (Exception ex)
+        {
+            _sendRawToWebView("SendRtcSignal failed to parse RTC signal: " + ex.Message);
+            return;
+        }
+
+        if (rtcSignal is null)
+            return;
+
+        rtcSignal.ChannelId ??= _getCurrentChannelId();
+        rtcSignal.From ??= _username;
+
+        // _sendRawToWebView($"RTC_SIGNAL file: {JsonSerializer.Serialize(rtcSignal)}");
+        if (string.IsNullOrWhiteSpace(rtcSignal.ChannelId))
+        {
+            _sendRawToWebView("SendRtcSignal failed: missing channel id.");
+            return;
+        }
+
+        var outgoingJson = JsonSerializer.Serialize(rtcSignal);
+
+        try
+        {
+            var encrypted = E2EeHelper.EncryptForRecipient(outgoingJson, _socket.ServerPublicKey);
+
+            var payload = new SocketRtcSignalMessage
+            {
+                Type = SignalType.EncryptedSignal,
+                SenderUsername = _username,
+                ChannelId = rtcSignal.ChannelId,
+                CipherText = encrypted.CipherText,
+                Nonce = encrypted.Nonce,
+                Tag = encrypted.Tag,
+                EncryptedKey = encrypted.EncryptedKey
+            };
+
+            _socket.SendJson(payload);
+
+            _sendRawToWebView($"SendRtcSignal sent: {rtcSignal.Type} -> {rtcSignal.To}");
+        }
+        catch (Exception ex)
+        {
+            _sendRawToWebView("SendRtcSignal failed: " + ex.Message);
+        }
+    }
+
+    public async Task<string> GetRtcParticipants()
+    {
+        var channelId = _getCurrentChannelId();
+
+        if (string.IsNullOrWhiteSpace(channelId))
+            return "[]";
+
+        var participants = await ServerAPI.GetRtcParticipantsAsync(channelId);
+        return JsonSerializer.Serialize(participants ?? []);
+    }
+
+    public async Task HandleIncomingRtcSignalAsync(SocketRtcSignalMessage payload)
+    {
+        // _sendRawToWebView("HandleIncomingRtcSignal called");
+        var currentChannelId = _getCurrentChannelId();
+
+        if (payload.ChannelId != currentChannelId)
+        {
+            _sendRawToWebView("Channel id does not match");
+            return;
+        }
+
+        if (payload.SenderUsername == _username)
+        {
+            _sendRawToWebView("Received own message");
+            return;
+        }
+
+        string decryptedJson;
+        
+        try
+        {
+            var privateKey = KeyStorage.LoadPrivateKey(_username);
+
+            decryptedJson = E2EeHelper.DecryptForRecipient(
+                new EncryptedPayload
+                {
+                    CipherText = payload.CipherText,
+                    Nonce = payload.Nonce,
+                    Tag = payload.Tag,
+                    EncryptedKey = payload.EncryptedKey
+                },
+                privateKey
+            );
+        }
+        catch (Exception ex)
+        {
+            _sendRawToWebView("RTC decrypt failed: " + ex.Message);
+            return;
+        }
+
+        RtcSignalMessage? rtcSignal;
+
+        try
+        {
+            rtcSignal = JsonSerializer.Deserialize<RtcSignalMessage>(decryptedJson);
+            // _sendRawToWebView($"Received Encrypted Signal: [{rtcSignal.From}]: {rtcSignal.Offer}");
+        }
+        catch (Exception ex)
+        {
+            _sendRawToWebView("RTC signal parse failed: " + ex.Message);
+            return;
+        }
+
+        if (rtcSignal is null)
+        {
+            _sendRawToWebView("rtcSignal is null");
+            return;
+        }
+
+        if (!string.IsNullOrWhiteSpace(rtcSignal.To) &&
+            !string.Equals(rtcSignal.To, _username, StringComparison.OrdinalIgnoreCase))
+        {
+            _sendRawToWebView($"Ignoring RTC signal meant for {rtcSignal.To}");
+            return;
+        }
+
+        // _sendRawToWebView("Received encrypted RTC signal: " + decryptedJson);
+
+        await SendRtcSignalToJsAsync(rtcSignal);
+    }
+
+    public Task PushRtcContextToJsAsync()
+    {
+        MainThread.BeginInvokeOnMainThread(async () =>
+        {
+            var usernameJson = JsonSerializer.Serialize(_username);
+            var channelIdJson = JsonSerializer.Serialize(_getCurrentChannelId());
+
+            await _hybridWebView.EvaluateJavaScriptAsync($"window.setUsername({usernameJson})");
+            await _hybridWebView.EvaluateJavaScriptAsync($"window.setChannelId({channelIdJson})");
+        });
+
+        return Task.CompletedTask;
+    }
+
+    private Task SendRtcSignalToJsAsync(RtcSignalMessage data)
+    {
+        if (data.Type == "rtc_offer" || data.Type == "rtc_answer")
+        {
+            data.Sdp = data.Sdp.Replace("\r\n", "(rn)");
+        }
+        MainThread.BeginInvokeOnMainThread(async () =>
+        {
+            try
+            {
+                // await _hybridWebView.InvokeJavaScriptAsync("testIndex", [JsonSerializer.Serialize(data)], [RtcJsType.Default.String]);
+                await _hybridWebView.InvokeJavaScriptAsync("testIndex", [data], [RtcJsType.Default.RtcSignalMessage]);
+                #region OldDebugger
+//                  var jsArg = JsonSerializer.Serialize(data);
+//
+//                 await _hybridWebView.EvaluateJavaScriptAsync($@"
+//                     try {{
+//                         window.HybridWebView.SendRawMessage('C# eval entered');
+//
+//                         if (!window.RelaySocket) {{
+//                             window.HybridWebView.SendRawMessage('window.RelaySocket missing');
+//                         }} else if (typeof window.RelaySocket.receiveRtcSignal !== 'function') {{
+//                             window.HybridWebView.SendRawMessage('RelaySocket.receiveRtcSignal missing');
+//                         }} else {{
+//                             window.HybridWebView.SendRawMessage('Calling RelaySocket.receiveRtcSignal');
+//                             window.RelaySocket.receiveRtcSignal({jsArg});
+//                         }}
+//                     }} catch (err) {{
+//                         window.HybridWebView.SendRawMessage('RTC JS dispatch failed: ' + err);
+//                     }}
+//                 ");
+                #endregion  
+            }
+            catch (Exception ex)
+            {
+                _sendRawToWebView("SendRtcSignalToJsAsync failed: " + ex.Message);
+            }
+        });
+        return Task.CompletedTask;
+    }
+}
+
+[JsonSourceGenerationOptions(WriteIndented = false)]
+[JsonSerializable(typeof(RtcDescription))]
+[JsonSerializable(typeof(List<RtcSignalMessage>))]
+[JsonSerializable(typeof(RtcSignalMessage))]
+[JsonSerializable(typeof(IceCandidate))]
+[JsonSerializable(typeof(List<IceCandidate>))]
+[JsonSerializable(typeof(string))]
+internal partial class RtcJsType : JsonSerializerContext
+{
+}

RelayCore/Endpoints/AuthEndpoints.cs

@@ -0,0 +1,59 @@
+using RelayCore.Services;
+
+namespace RelayCore.Endpoints;
+
+public static class AuthEndpoints
+{
+    public static void MapAuthEndpoints(this WebApplication app)
+    {
+        app.MapPost("/user/signin", async (AuthSignin request, APIAuthService service, HttpContext context) =>
+        {
+            var ip =  context.Connection.RemoteIpAddress?.MapToIPv4().ToString();
+            context.Request.Headers.TryGetValue("User-Agent", out var userAgent);
+            
+            Console.WriteLine($"IP:{ip}\nUserAgent:{userAgent}");
+            // var token = await service.UserSigninAsync(request, ip, userAgent);
+            
+            // return token != null ? Results.Ok(token) : Results.Unauthorized();
+            return Results.Ok();
+        });
+        app.MapPost("/user/register", async (AuthRegister request, APIAuthService service) =>
+        {
+            var token = await service.UserRegisterAsync(request);
+            return token != null  ? Results.Ok(token) : Results.Unauthorized();
+        });
+        app.MapPost("/server/verify/user", async (AuthUserVerify request, APIAuthService service) =>
+        {
+            bool valid = await service.ServerVerifyUser(request);
+            return Results.Ok(valid);
+        });
+        app.MapPost("/server/verify/license", async (AuthServerLicense request, APIAuthService service) =>
+        {
+            throw new NotImplementedException();
+        });
+    }
+}
+
+public class AuthSignin
+{
+    public string UserName { get; set; }
+    public string Password { get; set; }
+}
+
+public class AuthRegister
+{
+    public string Username { get; set; }
+    public string Password { get; set; }
+    public string Email { get; set; }
+}
+
+public class AuthUserVerify
+{
+    public string Username { get; set; }
+    public string Token { get; set; }
+}
+
+public class AuthServerLicense
+{
+    public string License { get; set; }
+}

RelayCore/Models/PasswordHasher.cs

@@ -22,7 +22,7 @@ namespace RelayCore.Models
         /// <summary>
         /// Number of threads to use for parallel computation
         /// </summary>
-        private const int DegreeOfParallelism = 1;
+        private const int DegreeOfParallelism = 2;
 
         /// <summary>
         /// Number of iterations for the Argon2id algorithm

RelayCore/Models/Sessions.cs

@@ -4,7 +4,7 @@ namespace RelayCore.Models;
 
 public class Sessions : Record
 {
-    public required string UserId { get; set; }
+    public required RecordId UserId { get; set; }
     public required string TokenHash { get; set; }
     public required DateTime IssuedAt { get; set; }
     public required DateTime ExpiresAt { get; set; }

RelayCore/Program.cs

@@ -1,14 +1,13 @@
 using SurrealDb.Net;
 using SurrealDb.Net.Models.Auth;
 using System.Text.Json;
-using System;
 using System.Net;
-using System.Threading.Tasks;
 using System.Text;
-using System.Text.Json;
 
 using RelayCore.Enums;
 using RelayCore.Models;
+using RelayCore.Endpoints;
+using RelayCore.Services;
 
 
 await using var db = new SurrealDbClient("ws://127.0.0.1:8000/rpc");
@@ -25,8 +24,25 @@ Console.WriteLine($"Keeper created: {ToJsonString(keeper)}");
 Console.WriteLine($"Kira created: {ToJsonString(kira)}");
 Console.WriteLine($"Test created: {ToJsonString(test)}");
 
-await server.Main(db);
+var builder = WebApplication.CreateBuilder(args);
+builder.WebHost.UseUrls("http://127.0.0.1:1337/");
+builder.Services.AddSingleton(db);
+builder.Services.AddScoped<APIAuthService>();
+
+var app = builder.Build();
+app.MapGet("/",  () => "Auth Server Running!");
+app.MapAuthEndpoints();
+
+// await server.Main(db);
+
+await app.StartAsync();
+Console.WriteLine("API Started");
+Console.WriteLine("\n\n\n");
+
+Console.Write("Press any key to stop.");
 Console.ReadKey(true);
+
+await app.StopAsync();
 return;
 
 static string ToJsonString(object? o)
@@ -51,7 +67,7 @@ static async Task<Users> CreateUserAsync(SurrealDbClient db, string username, st
         OnlineStatus = (int)OnlineStatuses.Online,
     };
 
-    var created = await db.Create("users", user);
+    var created = await db.Create("auth_users", user);
 
     var hasher = new PasswordHasher();
     var passwordHash = hasher.HashPassword(created.Id.ToString() + rawPassword);
@@ -65,7 +81,6 @@ static async Task<Users> CreateUserAsync(SurrealDbClient db, string username, st
     return updated;
 }
 
-
 partial class Program
 {
     public async Task Main(SurrealDbClient db)

RelayCore/RelayCore.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.Web">
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
@@ -10,11 +10,12 @@
 
     <ItemGroup>
       <PackageReference Include="Konscious.Security.Cryptography.Argon2" Version="1.3.1" />
+      <PackageReference Include="Microsoft.AspNetCore.SignalR" Version="1.2.9" />
       <PackageReference Include="SurrealDb.Net" Version="0.9.0" />
     </ItemGroup>
 
     <ItemGroup>
-      <Folder Include="Services\" />
+      <ProjectReference Include="..\RelayShared\RelayShared.csproj" />
     </ItemGroup>
 
 </Project>

RelayCore/Services/APIAuthService.cs

@@ -0,0 +1,49 @@
+using RelayCore.Endpoints;
+using RelayCore.Models;
+using SurrealDb.Net;
+using SurrealDb.Net.Models;
+
+namespace RelayCore.Services;
+
+public class APIAuthService(SurrealDbClient _db)
+{
+    
+    public async Task<string> UserSigninAsync(AuthSignin request)
+    {
+        var hasher = new PasswordHasher();
+        var users = await _db.Select<Users>("auth_users");
+        var user = users.FirstOrDefault(x => (x.Username == request.UserName || x.Email == request.UserName) 
+                                             && hasher.VerifyPassword(request.Password, x.Password));
+        var tokens = await _db.Select<Sessions>("auth_sessions");
+        var token = tokens.Where(x => x.UserId == user.Id && !x.Revoked).OrderByDescending(x => x.ExpiresAt).FirstOrDefault();
+        if (token.ExpiresAt > DateTime.UtcNow)
+            return token.TokenHash;
+        
+        //TODO: Generate TOKEN
+        var newToken = hasher.HashPassword($"{user.Email}{user.Username}{user.Password}");
+        //TODO: Store TOKEN and Username for verification
+        var sessionId = await _db.Create<Sessions>(new Sessions
+        {
+            UserId = user.Id,
+            TokenHash = newToken,
+            IssuedAt = DateTime.UtcNow,
+            ExpiresAt = DateTime.UtcNow.AddDays(30),
+            DeviceName = "",
+            Revoked = false,
+            IpAddress = "",
+            UserAgent = ""
+        });
+        //TODO: Add invalidation to TOKENs
+        return newToken;
+    }
+
+    public async Task<string> UserRegisterAsync(AuthRegister request)
+    {
+        throw new NotImplementedException();
+    }
+
+    public async Task<bool> ServerVerifyUser(AuthUserVerify request)
+    {
+        throw new NotImplementedException();
+    }
+}

RelayServer/Program.cs

@@ -21,6 +21,7 @@ var bootstrapService = new ServerBootstrapService(db, coreClient, cryptoService)
 await bootstrapService.InitializeAsync();
 
 var builder = WebApplication.CreateBuilder(args);
+builder.WebHost.UseUrls("http://127.0.0.1:5000/");
 
 builder.Services.AddSingleton(db);
 builder.Services.AddScoped<RtcCallService>();

RelayServer/Services/Chat/ChatSocketBehavior.cs

@@ -6,7 +6,7 @@ using RelayServer.Services.Rtc;
 using WebSocketSharp;
 using WebSocketSharp.Server;
 using ErrorEventArgs = WebSocketSharp.ErrorEventArgs;
-using RelayShared.Rtc;
+using RelayShared.Services;
 
 namespace RelayServer.Services.Chat;