Accessing environment variables prior to invoking the contenthandler.

[Mark Deepak Puttnam]

Hi Group,

I have a need to access all the %ENV (cgi,mod_perl sent by the client)
variables prior to invoking the content handler. I am using the modperl
environment by running the cgi scripts under Perl::Registry. I wish to
use the PerlTransHandler to check if the request for page A has
orginated from page B. If it did then redirect to page C.

I have used the following code in the in my handler and I still do not
get the values. This was recommended by the "Writing Apache Modules by
Doug M and Lincoln S." 

sub handler {
    my $r=shift;
    my $env=$r->subprocess_env;
       %ENV=%$senv;

    my $referer=$ENV{'HTTP_REFERER'}; 
  
       xxxx
       xxxxx


    }


Thank you for the help in advance.


Mark