Add IHttpRequestPathFeature.CurrentExecutionFilePath

src/Microsoft.AspNetCore.SystemWebAdapters.CoreServices/HttpRequestInputStreamFeature.cs

@@ -215,6 +215,8 @@ void IHttpRequestPathFeature.Rewrite(string filePath, string pathInfo, string? q
 
     string IHttpRequestPathFeature.RawUrl => _other.RawTarget;
 
+    string IHttpRequestPathFeature.CurrentExecutionFilePath => _filePath ?? Path;
+
     internal static class AspNetCoreTempDirectory
     {
         private static string? _tempDirectory;

src/Microsoft.AspNetCore.SystemWebAdapters/Adapters/IHttpRequestPathFeature.cs

@@ -13,6 +13,8 @@ internal interface IHttpRequestPathFeature
 
     string RawUrl { get; }
 
+    string CurrentExecutionFilePath { get; }
+
     void Rewrite(string filePath, string pathInfo, string? queryString, bool setClientFilePath);
 }
 

src/Microsoft.AspNetCore.SystemWebAdapters/Generated/Ref.Standard.cs

@@ -337,6 +337,7 @@ internal HttpRequest() { }
         public int ContentLength { get { throw new System.PlatformNotSupportedException("Only supported when running on ASP.NET Core or System.Web");} }
         public string ContentType { get { throw new System.PlatformNotSupportedException("Only supported when running on ASP.NET Core or System.Web");} set { throw new System.PlatformNotSupportedException("Only supported when running on ASP.NET Core or System.Web");} }
         public System.Web.HttpCookieCollection Cookies { get { throw new System.PlatformNotSupportedException("Only supported when running on ASP.NET Core or System.Web");} }
+        public string CurrentExecutionFilePath { get { throw new System.PlatformNotSupportedException("Only supported when running on ASP.NET Core or System.Web");} }
         public string FilePath { get { throw new System.PlatformNotSupportedException("Only supported when running on ASP.NET Core or System.Web");} }
         public System.Web.HttpFileCollection Files { get { throw new System.PlatformNotSupportedException("Only supported when running on ASP.NET Core or System.Web");} }
         public System.Collections.Specialized.NameValueCollection Form { get { throw new System.PlatformNotSupportedException("Only supported when running on ASP.NET Core or System.Web");} }

src/Microsoft.AspNetCore.SystemWebAdapters/HttpRequest.cs

@@ -52,6 +52,8 @@ internal HttpRequest(HttpRequestCore request)
         [SuppressMessage("Design", "CA1056:URI-like properties should not be strings", Justification = Constants.ApiFromAspNet)]
         public string RawUrl => _request.HttpContext.Features.GetRequired<IHttpRequestPathFeature>().RawUrl;
 
+        public string CurrentExecutionFilePath => _request.HttpContext.Features.GetRequired<IHttpRequestPathFeature>().CurrentExecutionFilePath;
+
         public NameValueCollection Headers => _headers ??= _request.Headers.ToNameValueCollection();
 
         public Uri Url => new(_request.GetEncodedUrl());