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From André Warnier ...@ice-sa.com>
Subject Re: [users@httpd] Location, LocationMatch combinations
Date Sun, 12 Apr 2009 19:09:02 GMT
Eric Covener wrote:
> On Sun, Apr 12, 2009 at 11:27 AM, André Warnier <aw@ice-sa.com> wrote:
>> Hi.
>>
>> Apache 2.2.x, configuration.
>> I have read this : http://httpd.apache.org/docs/2.2/sections.html
>> but some aspect is still not very clear to me.
>>
>> If I have :
>>
>> <Location "/zone1/private">
>>  .. some directives A ..
>> </Location>
>>
>> <Location "/zone2/private">
>>  .. some directives B ..
>> </Location>
>>
>> <LocationMatch "/private$">
>>  .. some directives C ..
>> </LocationMatch>
> 
>> (The above URIs do not reside on the filesystem.)
>>
>> If I access "http://myhost.company.com/zone1/private",
>> are the above directives A and C combined ?
> 
> It depends on the directive, because each module merges their
> configuration between sections explicitly.
> 
> The ambiguous ones are the ones that are conceptually lists.  For
> example, adding a new DirectoryIndex or Require is interpreted as a
> fresh start even though one might expect/desire the opposite.
> Contrast with the various mod_mime directives (AddType, AddHandler,
> etc) which really are merged together from location to location.
> 
>> I guess that the basic question is : does Apache finally select one and only
>> one Location/LocationMatch which applies, and then apply only the directives
>> within that section, or does it accumulate/merge all that applies ?
>> From the doc, I believe the latter, but it would be nice to have a definite
>> confirmation by an expert.
> 
> They are merged two-at- a-time from lowest to highest priority, but it
> may ultimately look like the "last" one is selected depending on the
> directives (the final per-directory config can be treated as the
> verbatim config, or treated as a delta from the result of the previous
> merges)
> 
I'll bet that in your second life, you're a politician or a lawyer.
:-)
I'll interpret that as a "mostly merge, except that some 
modules/directives don't".
Thanks.

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