feat: add HTTP GET handler to RoutingFeedbackWebSocket for client certificate confirmation

src/PepperDash.Essentials.Core/Routing/Extensions.cs

@@ -50,11 +50,11 @@ public static class Extensions
     /// </summary>
     private static Dictionary<string, List<TieLine>> _tieLinesBySource;
 
-    /// <summary>
+    // /// <summary>
-    /// Cache of failed route attempts to avoid re-checking impossible paths.
+    // /// Cache of failed route attempts to avoid re-checking impossible paths.
-    /// Format: "sourceKey|destKey|signalType"
+    // /// Format: "sourceKey|destKey|signalType"
-    /// </summary>
+    // /// </summary>
-    private static readonly HashSet<string> _impossibleRoutes = new HashSet<string>();
+    // private static readonly HashSet<string> _impossibleRoutes = new HashSet<string>();
 
     /// <summary>
     /// Indexes all TieLines by source and destination device keys for faster lookups.
@@ -130,14 +130,14 @@ public static class Extensions
         return string.Format("{0}|{1}|{2}", sourceKey, destKey, type);
     }
 
-    /// <summary>
+    // /// <summary>
-    /// Clears the impossible routes cache. Should be called if TieLines are added/removed at runtime.
+    // /// Clears the impossible routes cache. Should be called if TieLines are added/removed at runtime.
-    /// </summary>
+    // /// </summary>
-    public static void ClearImpossibleRoutesCache()
+    // public static void ClearImpossibleRoutesCache()
-    {
+    // {
-        _impossibleRoutes.Clear();
+    //     _impossibleRoutes.Clear();
-        Debug.LogMessage(LogEventLevel.Information, "Impossible routes cache cleared");
+    //     Debug.LogMessage(LogEventLevel.Information, "Impossible routes cache cleared");
-    }
+    // }
 
 
     /// <summary>
@@ -549,12 +549,12 @@ public static class Extensions
     {
         cycle++;
 
-        var routeKey = GetRouteKey(source.Key, destination.Key, signalType);
+        // var routeKey = GetRouteKey(source.Key, destination.Key, signalType);
-        if (_impossibleRoutes.Contains(routeKey))
+        // if (_impossibleRoutes.Contains(routeKey))
-        {
+        // {
-            Debug.LogMessage(LogEventLevel.Verbose, "Route {0} is cached as impossible, skipping", null, routeKey);
+        //     Debug.LogMessage(LogEventLevel.Verbose, "Route {0} is cached as impossible, skipping", null, routeKey);
-            return false;
+        //     return false;
-        }
+        // }
 
         Debug.LogMessage(LogEventLevel.Verbose, "GetRouteToSource: {cycle} {sourceKey}:{sourcePortKey}--> {destinationKey}:{destinationPortKey} {type}", null, cycle, source.Key, sourcePort?.Key ?? "auto", destination.Key, destinationPort?.Key ?? "auto", signalType.ToString());
 
@@ -651,8 +651,8 @@ public static class Extensions
         {
             Debug.LogMessage(LogEventLevel.Verbose, "No route found to {0}", destination, source.Key);
 
-            // Cache this as an impossible route
+            // // Cache this as an impossible route
-            _impossibleRoutes.Add(routeKey);
+            // _impossibleRoutes.Add(routeKey);
 
             return false;
         }

src/PepperDash.Essentials.Core/Web/RoutingFeedbackWebsocket.cs

@@ -4,6 +4,7 @@ using System.IO;
 using System.Linq;
 using System.Security.Authentication;
 using System.Security.Cryptography.X509Certificates;
+using System.Text;
 using System.Timers;
 using Crestron.SimplSharp;
 using Newtonsoft.Json;
@@ -11,6 +12,7 @@ using Newtonsoft.Json.Serialization;
 using PepperDash.Core;
 using Serilog.Events;
 using WebSocketSharp;
+using WebSocketSharp.Net;
 using WebSocketSharp.Server;
 
 namespace PepperDash.Essentials.Core.Web;
@@ -113,6 +115,7 @@ public class RoutingFeedbackWebsocket : IKeyed
             _httpsServer.SslConfiguration.ClientCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) => true;
 
             _httpsServer.AddWebSocketService<RoutingFeedbackClient>(_path, () => new RoutingFeedbackClient(this));
+            _httpsServer.OnGet += HandleHttpGet;
             _httpsServer.Log.Level = LogLevel.Warn;
             _httpsServer.Start();
 
@@ -337,6 +340,23 @@ public class RoutingFeedbackWebsocket : IKeyed
         service.Sessions.Broadcast(message);
     }
 
+    private void HandleHttpGet(object sender, HttpRequestEventArgs e)
+    {
+        var res = e.Response;
+        res.ContentType = "text/html";
+        res.ContentEncoding = Encoding.UTF8;
+        res.StatusCode = 200;
+
+        const string html = @"<!DOCTYPE html>
+<html><head><title>Essentials Routing Feedback</title></head>
+<body style=""font-family:sans-serif;padding:2rem;text-align:center"">
+<h2>Certificate Accepted</h2>
+<p>You may close this tab and return to the configuration app.</p>
+</body></html>";
+
+        res.WriteContent(Encoding.UTF8.GetBytes(html));
+    }
+
     private static X509Certificate2 LoadCert(string certPath, string certPassword)
     {
         return new X509Certificate2(certPath, certPassword, X509KeyStorageFlags.EphemeralKeySet);