Custom CMS using HTTPHandlerFactory

This is a handy chunk of code I want to keep, it allows for the use of the HttpHandlerfactory to return pages that are content managed alongside physical pages.

namespace Web.Helpers {
public class HttpCMSHandlerFactory : IHttpHandlerFactory
{

public IHttpHandler GetHandler(HttpContext context, string requestType, string url, string pathTranslated)

{
    string pageName = Path.GetFileNameWithoutExtension(context.Request.PhysicalPath);
    

    //on Server.Transfer the context is kept, so this just overrides the existing value.
    if (context.Items.Contains("PageName")) 

    {

        context.Items["PageName"] = pageName; } else { context.Items.Add("PageName", pageName); }
        FileInfo fi = new FileInfo(context.Request.MapPath(context.Request.CurrentExecutionFilePath)); 

        //if File is not physical 

        if (fi.Exists == false) 

        {
             //Check if is survey

             if (pageName.IndexOf("Survey", 0, StringComparison.InvariantCultureIgnoreCase) >= 0) 

            { return PageParser.GetCompiledPageInstance(url, context.Server.MapPath("~/Survey.aspx"), context); 

            } 

            else 

           {
            //return page to CMS handler the context containing "PageName" is passed on to this page, which then calls to the database to return the copy.
                return PageParser.GetCompiledPageInstance(url, context.Server.MapPath("~/CMSPage.aspx"),  context); 

            } 

        } 

        else 

        {
            // Returns real page.
            return PageParser.GetCompiledPageInstance(context.Request.CurrentExecutionFilePath, fi.FullName, context); 

        } 

    }
}

All that is then needed is to override the *.aspx handler on the iis site config (which should already be there for an asp.net sites) and also add the following to the web.config:

<httphandlers>

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

</httphandlers>