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I'm wondering if the following code should be working:

<LocationMatch "/(.*)([/])?(.*)">
    Order allow,deny
    Allow from all

    AuthType Basic
    AuthName "Git"
    AuthUserFile  /git/.htpasswd
    AuthGroupFile /git/.htgroup
    Require group $1

What I am trying to achieve with this is to require a group based on the first regex variable. So if the user goes to http://localhost/a-repository-name he has to be in the group a-repository-name to be able to open the url.

For some reason I can't get this code working and apache returns: Authorization of user **** to access /a-repository-name failed, reason: user is not part of the 'require'ed group(s).
I guess it's not matching against the proper variable at Require group $1.
Is this the right way to be done or I'm missing something?

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2 Answers 2

up vote 2 down vote accepted

LocationMatch doesn't support backreferencing, you can't do that in versions before 2.4.8.

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Can you please provide a link in the documentation where this is stated? I changed Require group $1 to Require group mygroup and it worked perfect. – tftd Sep 3 '12 at 15:04
@tftd: Changed the wording. I meant regexp grouping, not the group you set in Require. – InternetSeriousBusiness Sep 3 '12 at 15:07
Is there any known workaround? – tftd Sep 3 '12 at 15:30
@tftd: I'm afraid you'll have to attack the problem from another angle. – InternetSeriousBusiness Sep 3 '12 at 17:12
Okey, thanks for the help! :) – tftd Sep 3 '12 at 20:28

According to the Apache documentation this is now supported...

From 2.4.8 onwards, named groups and backreferences are captured and written to the environment with the corresponding name prefixed with "MATCH_" and in upper case. This allows elements of URLs to be referenced from within expressions and modules like mod_rewrite. In order to prevent confusion, numbered (unnamed) backreferences are ignored. Use named groups instead.

<LocationMatch "^/combined/(?<sitename>[^/]+)">
    require ldap-group cn=%{env:MATCH_SITENAME},ou=combined,o=Example
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Wow! Thank you for answering such an old question! I'm glad they've included this in the newer versions. Unfortunately I can't accept your answer because the original answer was valid at the time. – tftd Sep 21 at 14:39

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