hard question on filters

[deanhiller2000]

I would like to create a very special filter that rewrites the requested URL so this...

hosteditinabox.com/microsoft/web/main.xhtml
AND
hosteditinabox.com/ibm/web/main.xhtml

are rewritten as
hosteditinabox.com/web/main.xhtml

and I stuff the actually company id into the session.  Then the filter checks security to see if the logged in user has access to that company and if so forwards to seam to handle properly...hosteditinabox.com/web/main.xhtml  and my seam components can use the company id to get the correct info.  Can I use a seam filter or do I need a servlet filter for this?  Is this even possible?

yes, ideally, I would like to change DNS but need this as well.  Anyone know how to programatically change DNS so I can add ibm.hosteditinabox.com to a DNS when ibm registers?  That would be nice to know too :), but right now just need something quick and simple like above.

thanks,
Dean

[norman]

If you just want the one URL, a combination of URLrewrite and a page parameter would do the trick. If you want more URLs than /main.xhtml, then I think the servlet filter might be easier.