[pubcookie-dev] WEBISO CVS update: jteaton; keyclient.c,2.37,2.37.2.1 libpubcookie.c,2.62,2.62.2.1 libpubcookie.h,1.40,1.40.2.1 mod_pubcookie.c,1.123,1.123.4.1 mod_pubcookie.h,2.4,2.4.4.1 pubcookie

[Stephen Willey]

Jeff,

It seems reasonable to set enterprise_domain and logging_level in the apache
config and give-up on the 'one config file to rule them all' goal.  I think
having all of the configuration for the apache module in the apache conf is
a good thing, plus it's a lot easier then rewriting the myconfig stuff.

steve

> -----Original Message-----
> From: pubcookie-dev-bounces at mailman.u.washington.edu 
> [mailto:pubcookie-dev-bounces at mailman.u.washington.edu] On 
> Behalf Of Jeffrey T Eaton
> Sent: 9-Dec-03 6:52 PM
> To: pubcookie-dev at u.washington.edu
> Subject: Re: [pubcookie-dev] WEBISO CVS update: jteaton; 
> index.cgi.c,1.109,1.109.2.1 index.cgi.h,1.42,1.42.4.1 
> keyclient.c,2.37,2.37.2.1 libpubcookie.c,2.62,2.62.2.1 
> libpubcookie.h,1.40,1.40.2.1 mod_pubcookie.c,1.123,1.123.4.1 
> mod_pubcookie.h,2.4,2.4.4.1 pubcookie
> 
> 
> I started looking into hacking in virtual host support and ran into a 
> problem.  The myconfig stuff that Larry wrote last year, and 
> was hacked 
> into working with Apache, is currently making enabling 
> virtual host support 
> impossible.
> 
> The current state of affairs is this:
> 
> Apache starts up, and loads the pubcookie module.  
> libpbc_apacheconfig_init 
> gets called, and sets a global variable pointing to the server_rec 
> structure.
> 
> Apache then parses it's configuration file.  For each 
> pubcookie directive, 
> a function is called which inserts the entry into an Apache 
> table in the 
> server config structure.
> 
> Whenever something needs to know the value of a configuration 
> variable, it 
> calls back into pbc_apacheconfig.c, which reads from the 
> server rec's table 
> which holds the config variables.
> 
> This all works great for the case where there's only one 
> virtual host.  If 
> there are multiple virutal hosts, then it breaks.  
> libpbc_apacheconfig_init 
> gets called once for each virtual host, which clobbers the 
> global pointer 
> to the server rec structure, causing all sorts of problems (later 
> segfaults, etc).
> 
> I've been doing some debugging and right now the only code 
> that I can find 
> that does callbacks to read config file entries after the 
> server is running 
> are to get the enterprise_domain and logging_level.
> 
> I need to think about this some more, but I have a feeling 
> that I'm going 
> to be rewriting all of the code that handles the 
> configuration files to fix 
> this problem.
> 
> Blah.
> 
> -jeaton
> 
> ---
> Jeffrey T Eaton                  esp                 
> jeaton+ at andrew.cmu.edu
> Research Systems Programmer                      Carnegie 
> Mellon University
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> 
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