3 files changed, 27 insertions, 12 deletions
diff --git a/Jellyfin.Api/Attributes/DlnaEnabledAttribute.cs b/Jellyfin.Api/Attributes/DlnaEnabledAttribute.cs
new file mode 100644
index 000000000..d3a6ac9c8
--- /dev/null
+++ b/Jellyfin.Api/Attributes/DlnaEnabledAttribute.cs
@@ -0,0 +1,25 @@
+using Emby.Dlna;
+using MediaBrowser.Controller.Configuration;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Filters;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Jellyfin.Api.Attributes;
+
+/// <inheritdoc />
+public sealed class DlnaEnabledAttribute : ActionFilterAttribute
+{
+    /// <inheritdoc />
+    public override void OnActionExecuting(ActionExecutingContext context)
+    {
+        var serverConfigurationManager = context.HttpContext.RequestServices.GetRequiredService<IServerConfigurationManager>();
+
+        var enabled = serverConfigurationManager.GetDlnaConfiguration().EnableServer;
+
+        if (!enabled)
+        {
+            context.Result = new StatusCodeResult(StatusCodes.Status503ServiceUnavailable);
+        }
+    }
+}
diff --git a/Jellyfin.Api/Attributes/HttpSubscribeAttribute.cs b/Jellyfin.Api/Attributes/HttpSubscribeAttribute.cs
index af8727552..7ac089a34 100644
--- a/Jellyfin.Api/Attributes/HttpSubscribeAttribute.cs
+++ b/Jellyfin.Api/Attributes/HttpSubscribeAttribute.cs
@@ -25,11 +25,6 @@ namespace Jellyfin.Api.Attributes
         /// <param name="template">The route template. May not be null.</param>
         public HttpSubscribeAttribute(string template)
             : base(_supportedMethods, template)
-        {
-            if (template == null)
-            {
-                throw new ArgumentNullException(nameof(template));
-            }
-        }
+            => ArgumentNullException.ThrowIfNull(template, nameof(template));
     }
 }
diff --git a/Jellyfin.Api/Attributes/HttpUnsubscribeAttribute.cs b/Jellyfin.Api/Attributes/HttpUnsubscribeAttribute.cs
index 1c0b70e71..16b3d0816 100644
--- a/Jellyfin.Api/Attributes/HttpUnsubscribeAttribute.cs
+++ b/Jellyfin.Api/Attributes/HttpUnsubscribeAttribute.cs
@@ -25,11 +25,6 @@ namespace Jellyfin.Api.Attributes
         /// <param name="template">The route template. May not be null.</param>
         public HttpUnsubscribeAttribute(string template)
             : base(_supportedMethods, template)
-        {
-            if (template == null)
-            {
-                throw new ArgumentNullException(nameof(template));
-            }
-        }
+            => ArgumentNullException.ThrowIfNull(template, nameof(template));
     }
 }