determinig mime type of ressources

[Andreas Vallen <va...@gmx.net>]

Hello all,

I am building an application that transforms requested Ressources for mobile 
Devices. 
It shall accept many source formats and transform into a format appropiate 
for the client (xhtml, xhtml-basic, wml, chtml).

While I've got the concept working, there remains one glitch:
For now cocoon can determine the type of the source document solely on the 
basis of the filename extension. 

But I want to know the content-type of the HTTP-Response Header, so the 
transformation determines the right source format regardless the file 
extenstion.
I've found no sitemap component that seems capable of doing this.

My question is how would I best go about implementing such a component?

The only existing component I'm aware of that does provide information about 
a source document - albeit the most basic - is the RessourceExistsAction.

Would it be feasible to make a selector with this functionality? Any hints to 
documentation, examples, that can get me going?

Thanks,
Andreas Vallen


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