On Thu, Mar 22, 2012 at 10:18 AM, J.Lance Wilkinson <jl...@psu.edu> wrote:
> I'm trying to extract part of a URI into an environment variable to use in
> an authorization scheme (let's skip talking about how I'll USED that
> variable for the moment).
>
> I have the following directives in my configuration:
>
> LogFormat "%h %l %u %t \"%r\" %>s %b UMG=%{UMG}e" umgs
> CustomLog logs/umg.log umgs
> ...
> <Location ~ "^/(.*)/umg/.(.*)(.html|/(.*)?)$">
> ...
> SetEnvIf REQUEST_URI "^/(.*)/umg/.(.*)(.html|/(.*)?)$" UMG=$2
> ...
> </Location>
>
Why both locationmatch AND checking the request URI in setenvif?
> When I watch that log file, and hit resources that match that location, I'm
> seeing entries in the log which suggest a value for the UMG variable is not
> being extracted:
>
> xxx.xxx.xxx.xxx - jlw12 [22/Mar/2012:09:31:13 -0400] "GET
> /umgs/umg.up.dlt.sslcerts.mgttool HTTP/1.1" 301 455 UMG=-
> xxx.xxx.xxx.xxx - jlw12 [22/Mar/2012:09:31:25 -0400] "GET
> /umgs/umg.up.dlt.ul.gml.managers HTTP/1.1" 301 454 UMG=-
>
> I'd expected to see UMG=up.dlt.sslcerts.mgttool and
> UMG=up.dlt.ul.gml.managers on these two log lines.
>
> Several thoughts come to mind:
> 1) Logging is taking place before the SetEnvIf takes place.
definitely not
> 2) Miscoding of Location's regular expression is causing SetEnvIf to be
> bypassed.
easy to test, locationmatch not needed if you're already comparing
against the URI in the setenvif.
> 3) Miscoding of SetEnvIf's regular expression is causing SetEnvIf to fail.
likely, the "pcretest" program says it doesn't match.
This string would need either a .html or another / to match, right?
@^/(.*)/umg/.(.*)(.html|/(.*)?)$@
/umgs
/umg.up.dlt.sslcerts.mgttool (never found .html or /)
Maybe you meant the ? to apply to the entire alternation and not the .*?
> 4) Miscoding of SetEnvIf's value specification is causing failure.
easy to test w/ a literal value, not likely the case though.
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