Ignore created URI if Assembly.CodeBase contains a fragment (#8556)

* Fixes #8367

Author: sqdavid

src/Microsoft.AspNetCore.Mvc.Core/ApplicationParts/RelatedAssemblyAttribute.cs

@@ -115,7 +115,8 @@ internal static IReadOnlyList<Assembly> GetRelatedAssemblies(
 
         internal static string GetAssemblyLocation(Assembly assembly)
         {
-            if (Uri.TryCreate(assembly.CodeBase, UriKind.Absolute, out var result) && result.IsFile)
+            if (Uri.TryCreate(assembly.CodeBase, UriKind.Absolute, out var result) && 
+                result.IsFile && string.IsNullOrWhiteSpace(result.Fragment))
             {
                 return result.LocalPath;
             }

test/Microsoft.AspNetCore.Mvc.Core.Test/ApplicationParts/RelatedAssemblyPartTest.cs

@@ -80,7 +80,7 @@ public void GetAssemblyLocation_UsesCodeBase()
         {
             // Arrange
             var destination = Path.Combine(AssemblyDirectory, "RelatedAssembly.dll");
-            var codeBase = "file://x/file/Assembly.dll";
+            var codeBase = "file://x:/file/Assembly.dll";
             var expected = new Uri(codeBase).LocalPath;
             var assembly = new TestAssembly
             {
@@ -109,6 +109,54 @@ public void GetAssemblyLocation_UsesLocation_IfCodeBaseIsNotLocal()
             Assert.Equal(expected, actual);
         }
 
+        [Fact]
+        public void GetAssemblyLocation_CodeBase_HasPoundCharacterUnixPath()
+        {
+            var destination = Path.Combine(AssemblyDirectory, "RelatedAssembly.dll");
+            var expected = @"/etc/#NIN/dotnetcore/tryx/try1.dll";
+            var assembly = new TestAssembly
+            {
+                CodeBaseSettable = "file:///etc/#NIN/dotnetcore/tryx/try1.dll",
+                LocationSettable = expected,
+            };
+
+            // Act
+            var actual = RelatedAssemblyAttribute.GetAssemblyLocation(assembly);
+            Assert.Equal(expected, actual);
+        }
+
+        [Fact]
+        public void GetAssemblyLocation_CodeBase_HasPoundCharacterUNCPath()
+        {
+            var destination = Path.Combine(AssemblyDirectory, "RelatedAssembly.dll");
+            var expected = @"\\server\#NIN\dotnetcore\tryx\try1.dll";
+            var assembly = new TestAssembly
+            {
+                CodeBaseSettable = "file://server/#NIN/dotnetcore/tryx/try1.dll",
+                LocationSettable = expected,
+            };
+
+            // Act
+            var actual = RelatedAssemblyAttribute.GetAssemblyLocation(assembly);
+            Assert.Equal(expected, actual);
+        }
+
+        [Fact]
+        public void GetAssemblyLocation_CodeBase_HasPoundCharacterDOSPath()
+        {
+            var destination = Path.Combine(AssemblyDirectory, "RelatedAssembly.dll");
+            var expected = @"C:\#NIN\dotnetcore\tryx\try1.dll";
+            var assembly = new TestAssembly
+            {
+                CodeBaseSettable = "file:///C:/#NIN/dotnetcore/tryx/try1.dll",
+                LocationSettable = expected,
+            };
+
+            // Act
+            var actual = RelatedAssemblyAttribute.GetAssemblyLocation(assembly);
+            Assert.Equal(expected, actual);
+        }
+
         private class TestAssembly : Assembly
         {
             public override AssemblyName GetName()