Dynamically populate LocalAddress based on HTTP request

Support populating the LocalAddress field in the system info
endpoint based on the x-forwarded-host and x-forwarded-proto header.

The x-forwarded-host header must contain both the host and port for
the url to be properly constructed.

Behind network configuration option that is disabled by default.

1 files changed, 2 insertions, 1 deletions

diff --git a/Jellyfin.Server/Extensions/ApiServiceCollectionExtensions.cs b/Jellyfin.Server/Extensions/ApiServiceCollectionExtensions.cs
index f19e87aba..266dfef69 100644
--- a/Jellyfin.Server/Extensions/ApiServiceCollectionExtensions.cs
+++ b/Jellyfin.Server/Extensions/ApiServiceCollectionExtensions.cs
@@ -188,7 +188,8 @@ namespace Jellyfin.Server.Extensions
                     // https://github.com/dotnet/aspnetcore/blob/master/src/Middleware/HttpOverrides/src/ForwardedHeadersMiddleware.cs
                     // Enable debug logging on Microsoft.AspNetCore.HttpOverrides.ForwardedHeadersMiddleware to help investigate issues.
 
-                    options.ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto;
+                    options.ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto | ForwardedHeaders.XForwardedHost;
+
                     if (config.KnownProxies.Length == 0)
                     {
                         options.KnownNetworks.Clear();