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From Guenter Knauf <>
Subject Re: Help in Understanding Apache Filter
Date Mon, 10 Aug 2009 23:44:32 GMT
Mansour schrieb:
> I’m working in master project and I need to write an apache filter in
> this project.
> I want to understand how to write a filter in apache, I read tens of
> tutorials and books and I did not find any thing simple and clear, I got
> confused!
> For now I need a simple tutorial on how I can write a simple apache
> filter? Let say the filter is an output filter that will inject a text
> to the output. Also, I don’t prefer to use mod_perl in the filter.
> How I can write this filter? How I can compile it? Is apxs will work to
> configure the filter?
> Do you know a good tutorial that will help me in understanding how to
> write filter for apache? Or can any one help me with that?
> I learned how to write a handler, but I didn't understand how I can make
> the filter work.
have you also read throw the httpd manual?

perhaps take a look at mod_substitute docu and its source:

maybe this docu is also helpful:

two other small filter modules are in ./modules/experimental ...


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