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From "Dennis Sinelnikov" <>
Subject RE: Controlling subversion access
Date Sun, 26 Mar 2006 15:13:30 GMT
Hello Tom & mod_perlers,

Here is what I'm running:
Apache 2.2.0
mod_perl 2.0
OpenSSL 0.9.7a
mod_ssl 2.2.0

Ok, more info... 

Here is the code in my httpd-ssl.conf that works:
<Location /svn>
  DAV svn
  SVNPath /home/svnroot
  AuthzSVNAccessFile /usr/local/apache2/conf/svnauthorization

However, I need the UID, and SSL_CLIENT_S_DN_UID is not getting set, 
that's why I decided to go the <Perl> route.
I need to mimick exactly the samething as above but only parse the 
SSL_CLIENT_S_DN to get the UID and set SSLUserName.  

Thanks all,
-----Original Message-----
From: Tom Schindl [] 
Sent: Sunday, March 26, 2006 5:07 AM
To: Dennis Sinelnikov
Subject: Re: Controlling subversion access

Hi Dennis,

first of all it would be nice if you could tell us what version of
Apache/mod-perl you are running. Second I'm not sure I userstand what
you are trying to do because I'm not very familiar with SSL and DAV.

If I'm not completely mistaken things like $ENV{SSL_CLIENT_S_DN} are set
on request time and not on startup where the perl-sections in your
httpd.conf are parsed. What you need to implement is a handler which is
working after mod_ssl has done it's job and before mod_dav is doing its
job but therefore you must know in which phase of Apache they are working.

If elaborate a bit more I'm sure we (mod_perl) can help you ;-)


Dennis Sinelnikov wrote:
> Dear fellow developers,
> Here is what I'm trying to do in my httpd-ssl.conf:
> <Perl>
> $client_dn = $ENV{SSL_CLIENT_S_DN};
> $client_dn =~ /.*UID=(.*)$/;
> $client_uid = $1;
>   $Location{"/svnroot"} = {
>         DAV => 'svn',
>         SVNPath => '/home/svnroot',
>         SSLUserName => $client_uid,
>         AuthzSVNAccessFile => '/usr/local/apache2/conf/svnauthorization'
>         }
> </Perl>
> Obviously, the above code is not quite right (otherwise I would not be
> emailing everyone ;)
> Basically, I'm trying to parse the UID off of the Client's certificate
> DN and use it to set SSLUserName, so I can later use that uid in
> svnauthorization file to control read/write privileges of my subversion
> repository per user basis.  The reason why I need to parse UID off of
> the DN is because for some reason SSL_CLIENT_S_DN_UID is not getting
> set, but I see it in my log when I log the full DN (bug?).  If anyone
> had to do similar authorization using the client cert, please let me
> know and any suggestions are welcome. 
> Thanks much!
> Dennis

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