C# - Using HttpHandlerFactory To Render CMS And Physical Pages?

I am in the middle of writing a CMS system and after reading and working through a few examples, I have settled on HttpHandlerFactory to perform what I need.

the key point is our sites are generally a mix of copy and registration processes. So I currently need to use the default HttpHandler for aspx to render the physical registration pages until I can work a way to content manage them too.

after creating the handler class I added the following to my website's web config

<add verb="*" path="*.aspx" type="Web.Helpers.HttpCMSHandlerFactory, Web.Helpers"/>

As the above path handles physical and cms driven pages, with a small check in the code I am able to see if the page physically exists and can then render the desired page.

public IHttpHandler GetHandler(HttpContext context, string requestType, string url, string pathTranslated)
{
string pageName = Path.GetFileNameWithoutExtension(context.Request.PhysicalPath);
context.Items.Add("PageName", pageName);

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