internal static uint IsAuthenicatedPr3User(this HttpContext httpContext) { if (httpContext.Request.Headers.TryGetValue("Referer", out StringValues referer) && !HttpContextExtensions.IsAllowed(referer)) { return(0u); //Block possible bad request } if (httpContext.Request.Headers.TryGetValue("Origin", out StringValues origin) && !HttpContextExtensions.IsAllowed(origin)) { return(0u); //Block possible bad request } ClaimsPrincipal claimsPrincipal = httpContext.User; if (claimsPrincipal != null) { IIdentity identity = claimsPrincipal.Identity; if (identity != null && identity.IsAuthenticated && identity.Name == HttpContextExtensions.AUTHENICATION_IDENTITY) { if (uint.TryParse(claimsPrincipal.FindFirstValue(ClaimTypes.Sid), out uint userId)) { return(userId); } } } return(0u); }