...

1 files changed, 15 insertions, 0 deletions

diff --git a/Timeline/Controllers/ControllerAuthExtensions.cs b/Timeline/Controllers/ControllerAuthExtensions.cs
index 81fd2428..90da8a93 100644
--- a/Timeline/Controllers/ControllerAuthExtensions.cs
+++ b/Timeline/Controllers/ControllerAuthExtensions.cs
@@ -26,5 +26,20 @@ namespace Timeline.Controllers
 

             throw new InvalidOperationException("Failed to get user id because NameIdentifier claim is not a number.");

         }

+

+        public static long? GetOptionalUserId(this ControllerBase controller)

+        {

+            if (controller.User == null)

+                return null;

+

+            var claim = controller.User.FindFirst(ClaimTypes.NameIdentifier);

+            if (claim == null)

+                throw new InvalidOperationException("Failed to get user id because User has no NameIdentifier claim.");

+

+            if (long.TryParse(claim.Value, out var value))

+                return value;

+

+            throw new InvalidOperationException("Failed to get user id because NameIdentifier claim is not a number.");

+        }

     }

 }