OutputFilter redirecting reply for modification

[n.weidmann@xxxxxxxxxxxxxxxx]

Hi,

Is there an existing module that can
be used as an output filter to send the response to another web server
to get the final response to send back to the client.

Here is a complete explanation of what
I need to achieve:

1. The client sends a request.
2. The request is forwarded to another
server using mod_proxy (this is already configured and working),
3. mod_proxy walks through the output
filters to send the response back.

Here comes what I want to achieve.

4. The output filter intercepts the
respons and if the type of the document is PDF for exemple, it sends it
to another server for filtering.
5. It gets back the respons from this
other server
6. It sends back to the client the response
of this second server instead of the original response returned by mod_proxy.

If the file does not need to be filtered
(not PDF in my exemple), then the output filter does not send it to the
other server for filtering, but sends
it back directly with no modification
to the client.

Is there such a module?

If not, what would be the best strategy
to implement such a module?

Should my custom module re-use functionality
from mod_proxy by linking with it?

Or should it use another module or Apache
native APIs to forward the response to the other server for filtering?

Thank you very much for your help and
advice on this issue !


Nicolas Weidmann
Lombard Odier & Cie
T +41 22 709 2317 - F +41 22 709 3782
www.lombardodier.com


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