mod_ext_filter with mode=input and ftype=AP_FTYPE_PROTOCOL : filter not executed

[Sylvain Zimmer <sylvain@xxxxxxxxxxxxxxxxx>]

Hi!

I've been trying to setup a custom input filter that modifies http request headers.

Here is my config, at the end of apache2.conf (apache version 2.2.9-7ubuntu3)

ExtFilterDefine radioclient ftype=30 mode=input cmd="/usr/bin/tee /tmp/ext_filter_debug"
SetInputFilter radioclient

(AP_FTYPE_PROTOCOL=30)

The filter doesn't get executed ( /tmp/ext_filter_debug is not even created). I can't understand why, because the following configs do work (but it's not what I need) :

ExtFilterDefine radioclient ftype=29 mode=input cmd="/usr/bin/tee /tmp/ext_filter_debug"
SetInputFilter radioclient

and

ExtFilterDefine radioclient ftype=30 mode=output cmd="/usr/bin/tee /tmp/ext_filter_debug"
SetOutputFilter radioclient


Is there a specific issue related to filtering input at the AP_FTYPE_PROTOCOL level ?

Thanks a lot in advance!

-- 
Sylvain Zimmer
CTO, www.jamendo.com

blog: sylvinus.org
gsm: +33 6 64 67 61 71