Decoding request objects with unfiltered

Using Unfiltered , observing the request header Accept-Encodingbecomes trivial with a set GZip.

However, I cannot find how to accept the gzipped request object. It is perfectly legal for a client to declare an HTTP header Content-Encoding: gzip, and servers must abide by it. This is not like the default unfiltered behavior, and I cannot find a built-in solution.

Am I missing an obvious solution or do I need to manually handle this case? If later, I will be interested in pointers in the right direction.