v3.0.2: add login retry limit (3 attempts) + retry button, update Discord link

- After 3 failed token logins, connection stops (prevents HA IP ban)
- Retry button in UI for manual reconnection after token fix
- Error message shown to user on login failure
- Discord invite link updated to new server
- Version bump: 3.0.1 → 3.0.2

Author: Fabian Kirchweger

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## [v3.0.2] - 2026-05-12
+- 🔒 **Login-Retry-Limit:** Nach 3 fehlgeschlagenen Token-Logins wird die Verbindung gestoppt (verhindert HA IP-Ban)
+- 🔄 **Retry-Button:** Manuelles Neuverbinden nach Token-Korrektur über Einstellungen
+- 🔗 **Discord-Link aktualisiert:** Neuer Server-Invite-Link (discord.gg/7G2SqpXpsC)
+
 ## [v3.0.7] - 2026-04-22
 - 📖 **Doku aktualisiert:** README_EN komplett auf v3.0-Stand gebracht
 - 📷 **Webcam-Sensor** korrekt dokumentiert

VERSION

@@ -1 +1 @@
-3.0.7
+3.0.2

src/HaDeskLink/DeskLinkApp.cs

@@ -77,6 +77,10 @@ private void StartWebSocket(Config config, HaApiClient api)
                 cmd => { try { _ = CommandHandler.ExecuteAsync(cmd); } catch { } }
             );
 
+            // Pass WS to MainWindow for retry button
+            if (desktop.MainWindow is Views.MainWindow mw)
+                mw.SetWebSocketClient(_ws);
+
             _ = Task.Run(async () =>
             {
                 try { await _ws.ConnectAsync(); }

src/HaDeskLink/HaDeskLink.csproj

@@ -5,7 +5,7 @@
     <TargetFramework>net8.0</TargetFramework>
     <AssemblyName>HA_DeskLink</AssemblyName>
     <RootNamespace>HaDeskLink</RootNamespace>
-    <Version>3.0.7</Version>
+    <Version>3.0.2</Version>
     <Nullable>enable</Nullable>
     <RuntimeIdentifier>osx-arm64</RuntimeIdentifier>
   </PropertyGroup>

src/HaDeskLink/HaWebSocketClient.cs

@@ -39,6 +39,17 @@ public class HaWebSocketClient : IDisposable
 
     public bool IsConnected => _connected;
 
+    private int _authFailCount;
+    private const int MaxAuthFailures = 3;
+    /// <summary>Whether retries are blocked due to too many login failures.</summary>
+    public bool IsBlocked => _authFailCount >= MaxAuthFailures;
+    /// <summary>Reset the login block so the WebSocket can attempt to reconnect.</summary>
+    public void ResetLoginBlock()
+    {
+        _authFailCount = 0;
+        _connected = false;
+    }
+
     public HaWebSocketClient(string haUrl, string token, string webhookId, object? trayIcon, Action<string>? onCommand = null)
     {
         _haUrl = haUrl.TrimEnd('/');
@@ -54,6 +65,14 @@ public async Task ConnectAsync()
 
         while (!_cts.Token.IsCancellationRequested)
         {
+            // Check if login is blocked before attempting connection
+            if (IsBlocked)
+            {
+                Console.WriteLine($"⛔ Login blockiert nach {MaxAuthFailures} fehlgeschlagenen Versuchen. Token zurücksetzen oder Einstellungen prüfen.");
+                await Task.Delay(60000, _cts.Token);
+                continue;
+            }
+
             try
             {
                 _ws = new ClientWebSocket();
@@ -68,8 +87,18 @@ public async Task ConnectAsync()
 
                 msg = await ReceiveMessage();
                 if (msg == null || !msg.Contains("auth_ok"))
-                    throw new Exception("Auth failed");
+                {
+                    // Auth failed – this is likely an invalid token
+                    _authFailCount++;
+                    if (_authFailCount >= MaxAuthFailures)
+                    {
+                        Console.WriteLine($"⛔ {MaxAuthFailures} fehlgeschlagene Login-Versuche. Verbindung gestoppt. Bitte Token in Einstellungen prüfen.");
+                    }
+                    throw new Exception("Auth failed: " + (msg ?? "no response"));
+                }
 
+                // Auth succeeded – reset failure count
+                _authFailCount = 0;
                 _connected = true;
 
                 await SendMessage(new

src/HaDeskLink/Lang/de.json

@@ -59,5 +59,7 @@
   "screenshot_saved": "Screenshot saved",
   "webcam_active": "Webcam Active",
   "notification_action_executed": "Action executed",
-  "ha_desklink_version": "HA DeskLink Version"
+  "ha_desklink_version": "HA DeskLink Version",
+  "login_failed": "Login fehlgeschlagen. Token ungültig. Bitte überprüfe deinen Home Assistant Token in den Einstellungen.",
+  "retry_connect": "Erneut verbinden"
 }

src/HaDeskLink/Lang/en.json

@@ -59,5 +59,7 @@
   "screenshot_saved": "Screenshot saved",
   "webcam_active": "Webcam Active",
   "notification_action_executed": "Action executed",
-  "ha_desklink_version": "HA DeskLink Version"
+  "ha_desklink_version": "HA DeskLink Version",
+  "login_failed": "Login failed. Invalid token. Please check your Home Assistant token in settings.",
+  "retry_connect": "Retry connection"
 }

src/HaDeskLink/Lang/es.json

@@ -59,5 +59,7 @@
   "screenshot_saved": "Screenshot saved",
   "webcam_active": "Webcam Active",
   "notification_action_executed": "Action executed",
-  "ha_desklink_version": "HA DeskLink Version"
+  "ha_desklink_version": "HA DeskLink Version",
+  "login_failed": "Error de inicio de sesión. Token no válido. Verifica tu token de Home Assistant en la configuración.",
+  "retry_connect": "Reintentar conexión"
 }

src/HaDeskLink/Lang/fr.json

@@ -59,5 +59,7 @@
   "screenshot_saved": "Screenshot saved",
   "webcam_active": "Webcam Active",
   "notification_action_executed": "Action executed",
-  "ha_desklink_version": "HA DeskLink Version"
+  "ha_desklink_version": "HA DeskLink Version",
+  "login_failed": "Échec de connexion. Token invalide. Vérifiez votre token Home Assistant dans les paramètres.",
+  "retry_connect": "Réessayer"
 }

src/HaDeskLink/Lang/ja.json

@@ -59,5 +59,7 @@
   "screenshot_saved": "Screenshot saved",
   "webcam_active": "Webcam Active",
   "notification_action_executed": "Action executed",
-  "ha_desklink_version": "HA DeskLink Version"
+  "ha_desklink_version": "HA DeskLink Version",
+  "login_failed": "ログイン失敗。トークンが無効です。設定でHome Assistantトークンを確認してください。",
+  "retry_connect": "再接続"
 }