Oauth module

Hi

I'm writing a module to support 2-legged Oauth on nginx, and for that I'm using python for all the outh part.
I made it work when Oauth parameters are passed as request parameters, but I couldn't make it work yet when the oauth are passed via authorization headers.
In fact my problem is that I'm using Python/C API and I can't pass the list of headers from C to Python because nginx C structures doesn't offer there ...
Have any one faced this problem before, or is there any similar module that can help me...?

Thanks you for any help.

sketbi