wrote Authen module dealing with cookies : now POST requests get corrupted. Any advice ?

["Dami Laurent (PJ)" <la...@justice.ge.ch>]

Hi everybody,

I recently wrote  an extension to Apache2::AuthenNTLM in order to store
the NTLM authentified username in a cookie (module
http://search.cpan.org/dist/Apache2-AuthenNTLM-Cookie/). 

Now I found out that this module has a critical bug : the content of
POST requests gets corrupted (bug
http://rt.cpan.org/Ticket/Display.html?id=36847).

I don't really know where to start to fix the bug. My hypothesis is that
perhaps this is because I'm using Apache2::Cookie, which itself uses
libaprequest, and maybe these modules are not meant to be used in an
early Apache phase, and leave the input stream in an buggy state. I
looked at a couple of other authentication modules using cookies, but
they don't seem to use the Apache2::Cookie API.

Is that the hypothesis correct ? Does anybody have good advice on that
problem ? 

Thanks in advance, 

	Laurent Dami

Re: wrote Authen module dealing with cookies : now POST requests get corrupted. Any advice ?

[Adam Prime <ad...@utoronto.ca>]

Dami Laurent (PJ) wrote:
> Hi everybody,
> 
> I recently wrote  an extension to Apache2::AuthenNTLM in order to store 
> the NTLM authentified username in a cookie (module 
> _http://search.cpan.org/dist/Apache2-AuthenNTLM-Cookie/_).
> 
> Now I found out that this module has a critical bug : the content of 
> POST requests gets corrupted (bug 
> _http://rt.cpan.org/Ticket/Display.html?id=36847_).
> 
> I don't really know where to start to fix the bug. My hypothesis is that 
> perhaps this is because I'm using Apache2::Cookie, which itself uses 
> libaprequest, and maybe these modules are not meant to be used in an 
> early Apache phase, and leave the input stream in an buggy state. I 
> looked at a couple of other authentication modules using cookies, but 
> they don't seem to use the Apache2::Cookie API.
> 
> Is that the hypothesis correct ? Does anybody have good advice on that 
> problem ?

There is a lot of code on CPAN using libapreq and/or Apache2::Cookie in 
every phase, so I very seriously doubt that that's a problem.  The first 
thing i'd do in your situation would be to make sure that the bug 
doesn't exist in Apache2::AuthenNTLM, to confirm it's actually specific 
to you're extention.

Telling us what exactly 'gets corrupted' means might help too (ie 
error_log details, or whatever you're seeing).

Adam