[isf-wifidog] The path situation (was: CVS 05 Jan, 2005 server install fails)

Benoit Grégoire bock at step.polymtl.ca
Dim 8 Jan 21:53:59 EST 2006

On January 7, 2006 08:29 am, Ray Gwinn wrote:
> I was able to get this done sooner than I thought.  The output you
> requested follows:
> Component=(Smarty)
> IF isset
> IF self
> else !file_exists DOCUMENT_ROOT=(/var/www/html/wifidog
> SYSTEM_PATH=(/mine/dir- wifi/webstuff/www/html/wifidog/)
> NOTE that /var/www/ and /mine/dir-wifi/webstuff/www/  are the same
> directory.  /var/www/ is the link.

Ouch, I don't think anyone tought that someone would want to run wifidog from 
a symlinked document root.  

I improved the path detection code, it should now work right on windows 
(presumably).  However despite scratching my head, I just don't see how to 
make it work for symlinks.  All the algorithms that will work will fail in 
other (normal) conditions.  

I tried to move all path detection code back to a central location (this 
divergence in the code was an unfortunate and unavoidable accident caused by 
four different developers independently adding overlapping missing path 
related functionnality).  At least now it will be consistent (same code 
everywhere) and will tell you if it failed by throwing a fatal exception.   
It also allows you to override it's detection by manually defining 
SYSTEM_PATH and/or DOCUMENT_ROOT, but this is obviously far from ideal. If 
someone codes an algorithm that will work in all cases, at least the code is 
now centralised in include/path_defines_base.php.   (Well, FCKeditor, and 
possibly a few other places still do their own path detection, but this will 
probably be fixed as we go on).
Benoit Grégoire, http://benoitg.coeus.ca/
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