added ability to track web sockets per session

MediaBrowser.Api/SessionsService.cs

@@ -0,0 +1,54 @@
+using MediaBrowser.Controller.Session;
+using MediaBrowser.Model.Session;
+using ServiceStack.ServiceHost;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace MediaBrowser.Api
+{
+    /// <summary>
+    /// Class GetSessions
+    /// </summary>
+    [Route("/Sessions", "GET")]
+    [Api(("Gets a list of sessions"))]
+    public class GetSessions : IReturn<List<SessionInfo>>
+    {
+        /// <summary>
+        /// Gets or sets a value indicating whether this instance is recent.
+        /// </summary>
+        /// <value><c>true</c> if this instance is recent; otherwise, <c>false</c>.</value>
+        public bool IsRecent { get; set; }
+    }
+
+    /// <summary>
+    /// Class SessionsService
+    /// </summary>
+    public class SessionsService : BaseApiService
+    {
+        /// <summary>
+        /// The _session manager
+        /// </summary>
+        private readonly ISessionManager _sessionManager;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SessionsService"/> class.
+        /// </summary>
+        /// <param name="sessionManager">The session manager.</param>
+        public SessionsService(ISessionManager sessionManager)
+        {
+            _sessionManager = sessionManager;
+        }
+
+        /// <summary>
+        /// Gets the specified request.
+        /// </summary>
+        /// <param name="request">The request.</param>
+        /// <returns>System.Object.</returns>
+        public object Get(GetSessions request)
+        {
+            var result = request.IsRecent ? _sessionManager.RecentConnections : _sessionManager.AllConnections;
+
+            return ToOptimizedResult(result.ToList());
+        }
+    }
+}