Got at least one data fetching method working; turns out, we can't use a patched LogicStack to get the data

Vendor/EmbedIO-3.5.2/WebSockets/IWebSocketContext.cs

@@ -0,0 +1,87 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using System.Net;
+using System.Security.Principal;
+using System.Threading;
+using EmbedIO.Sessions;
+
+namespace EmbedIO.WebSockets
+{
+    /// <summary>
+    /// Represents the context of a WebSocket connection.
+    /// </summary>
+    public interface IWebSocketContext
+    {
+        /// <summary>
+        /// Gets a unique identifier for a WebSocket context.
+        /// </summary>
+        string Id { get; }
+
+        /// <summary>
+        /// Gets the <see cref="CancellationToken "/> used to cancel operations.
+        /// </summary>
+        CancellationToken CancellationToken { get; }
+
+        /// <summary>
+        /// Gets the unique identifier of the opening handshake HTTP context.
+        /// </summary>
+        string HttpContextId { get; }
+
+        /// <summary>
+        /// Gets the session proxy associated with the opening handshake HTTP context.
+        /// </summary>
+        ISessionProxy Session { get; }
+
+        /// <summary>
+        /// Gets the dictionary of data associated with the opening handshake HTTP context.
+        /// </summary>
+        IDictionary<object, object> Items { get; }
+
+        /// <summary>
+        /// Gets the server IP address and port number to which the opening handshake request is directed.
+        /// </summary>
+        IPEndPoint LocalEndPoint { get; }
+
+        /// <summary>
+        /// Gets the client IP address and port number from which the opening handshake request originated.
+        /// </summary>
+        IPEndPoint RemoteEndPoint { get; }
+
+        /// <summary>The URI requested by the WebSocket client.</summary>
+        Uri RequestUri { get; }
+
+        /// <summary>The HTTP headers that were sent to the server during the opening handshake.</summary>
+        NameValueCollection Headers { get; }
+
+        /// <summary>The value of the Origin HTTP header included in the opening handshake.</summary>
+        string Origin { get; }
+
+        /// <summary>The value of the SecWebSocketKey HTTP header included in the opening handshake.</summary>
+        string WebSocketVersion { get; }
+
+        /// <summary>The list of subprotocols requested by the WebSocket client.</summary>
+        IEnumerable<string> RequestedProtocols { get; }
+
+        /// <summary>The accepted subprotocol.</summary>
+        string AcceptedProtocol { get; }
+
+        /// <summary>The cookies that were passed to the server during the opening handshake.</summary>
+        ICookieCollection Cookies { get; }
+
+        /// <summary>An object used to obtain identity, authentication information, and security roles for the WebSocket client.</summary>
+        IPrincipal User { get; }
+
+        /// <summary>Whether the WebSocket client is authenticated.</summary>
+        bool IsAuthenticated { get; }
+
+        /// <summary>Whether the WebSocket client connected from the local machine.</summary>
+        bool IsLocal { get; }
+
+        /// <summary>Whether the WebSocket connection is secured using Secure Sockets Layer (SSL).</summary>
+        bool IsSecureConnection { get; }
+
+        /// <summary>The <see cref="IWebSocket"/> interface used to interact with the WebSocket connection.</summary>
+        IWebSocket WebSocket { get; }
+    }
+}