MVC Update User Online via Action Filter

Action filter to update the currently logged in users last online time to allow you to identify which of your users are online

/// <summary>
/// User Online Action Filter Attribute
/// </summary>
public class UserOnlineActionFilterAttribute : ActionFilterAttribute
{
/// <summary>
/// Called by the ASP.NET MVC framework after the action method executes.
/// </summary>
/// <param name="filterContext">The filter context.</param>
public override void OnActionExecuted(ActionExecutedContext filterContext)
{
try
{
if (filterContext.HttpContext != null && filterContext.HttpContext.User != null && filterContext.HttpContext.User.Identity != null)
{
Membership.Provider.GetUser(filterContext.HttpContext.User.Identity.Name, true);
}
}
catch
{
// BAD: Swallow the exception to prevent it messing with the users action
}

base.OnActionExecuted(filterContext);
}
}

Add the action filter to the global list inside the global.asax Application_Start.

GlobalFilters.Filters.Add(new UserOnlineActionFilterAttribute());