Desilets, Alain wrote:
Trying to migrate a complex script from a standard CGI context to a mod_perl
context, and am having a hell of a time. The latest problem is that I have a call
to GCI::Utils->getSelfRefUrlWithQuery() which causes a crash.
In an attempt to isolate the problem, I wrote this short script which does
nothing more than call that method:
--------------
#!perl -w
use strict;
print "Content-type: text/plain\r\n\r\n";
use CGI::Utils;
my $self_url = '';
print "Before calling get_self_ref_url_with_query()\n";
#no strict;
my $cgi_utils = CGI::Utils->new();
$self_url = $cgi_utils->getSelfRefUrlWithQuery();
#$self_url = $cgi_utils->get_self_ref_url_with_query();
#$self_url = CGI::Utils->getSelfRefUrlWithQuery();
#$self_url = CGI::Utils->getSelfRefUrlWithQuery();
#use strict;
---------------
When I run it, I get the following error:
[Thu Dec 01 17:04:21 2011] [error] Can't use string ("HTML::Mason::Commands::m") as a
SCALAR ref while "strict refs" in use at C:/Perl/site/lib/CGI/Utils.pm line 203.\n
If I comment out the call to getSelfRefUrlWithQuery(), then the script runs
fine.
I have tried calling that method in four different ways (as CGI::Utils-> or
$cgi_utils->, with the underscore or hungarian notation variants), with or without
'no strict'. All of those combinations fail.
I tried running this script as a ModPerl::Registry or a ModPerl::PerlRun mode,
and neither ones work.
Is getSelfUrlWithQuery() a method that can't be used in a mod_perl context? If
so, how can I get the URL fo the current script call?
I have no idea about the error above, but
staying with CGI::Utils, you may also want to try passing the request object directly to
CGI::Utils->new, as follows :
my $r = shift;
my $params = { 'apache_request' => $r };
my $cgi_utils = CGI::Utils->new( $params );
and see if that works better.
You may also want to have a look at this, to replace that particular function with the
equivalent one from CGI.pm :
http://search.cpan.org/~markstos/CGI.pm-3.58/lib/CGI.pm#CREATING_A_SELF-REFERENCING_URL_THAT_PRESERVES_STATE_INFORMATION:
(and the next one). In other words, try this :
#!perl -w
use strict;
print "Content-type: text/plain\r\n\r\n";
use CGI;
my $cgi = CGI->new();
my $self_url = $cgi->url(-path_info=>1,-query=>1);
The CGI.pm module "knows" that it is running under mod_perl, and will automatically
retrieve the Apache::RequestRec object.
Later, also have a look at this :
http://httpd.apache.org/apreq/docs/libapreq2/
(which is an Apache add-on module which provides much of the functionality of CGI.pm, and
in a mod_perl context, probably more efficiently).
I do not remember on which platform you are working, but on my Linux Debian platforms,
installing it is as easy as :
apt-get install libapache2-mod-apreq2
