Accessing CGI objects from within a 'require'-ed file?

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

I'm having issues accessing a CGI object in the main namespace from within a 'require'-ed file...For instance, this is my main script:

#!/usr/bin/perl -w

use strict;
use CGI;
use CGI::Carp qw(fatalsToBrowser);

require "functions.pl";

# define a hash to contain any "global" objects or variables
our %GLOBAL = (
  'query' => '',
  'test' => 'foobar!'
);

$GLOBAL{'query'} = new CGI;

print CGI::header();
outputTest();
outputPOST();
[download]

and this is the library file it requires (functions.pl):

sub outputTest
{
  print $main::GLOBAL{'test'};
}

sub outputPOST
{
  print $main::GLOBAL{'query'}->Vars;
}

1;
[download]

running this as-is throws up an Internal Server Error, which is strange considering i'm using fatalsToBrowser. i'm sure the problem is with the CGI query object, because if I remove the outputPost subroutine, it runs fine.

am I just missing something vitally obvious?

Comment on Accessing CGI objects from within a 'require'-ed file? Select or Download Code

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Re: Accessing CGI objects from within a 'require'-ed file? by merlyn (Sage) on Jun 21, 2006 at 22:14 UTC
Internal Server Error Well, that's the normal message to say "go look at the internal server logs and see the rest of the error message". What do the server logs say? -- Randal L. Schwartz, Perl hacker Be sure to read my standard disclaimer if this is a reply.	[reply]
Re: Accessing CGI objects from within a 'require'-ed file? by mbadolato (Hermit) on Jun 21, 2006 at 23:23 UTC
You may want to try checking permissions. Also check linefeeds of you're moving the file back and forth between Windows and Unix (some ftp clients don't convert them). I just copied both of your code snippets into two separate files and hit it with my browser and it worked. I added some parameters to the query string, and got the outputPost data printing too. test.cgi: `#!/usr/bin/perl -w use strict; use CGI; use CGI::Carp qw(fatalsToBrowser); require "functions.pl"; # define a hash to contain any "global" objects or variables our %GLOBAL = ( 'query' => '', 'test' => 'foobar!' ); $GLOBAL{'query'} = new CGI; print CGI::header(); outputTest(); outputPOST();` [download] functions.pl: `sub outputTest { print $main::GLOBAL{'test'}; } sub outputPOST { print $main::GLOBAL{'query'}->Vars; } 1;` [download] Hit the browser with http://192.168.1.102/test/test.cgi: `foobar!` [download] Hit the browser with http://192.168.1.102/test/test.cgi?myvar=haha: `foobar!myvarhaha` [download]	[reply] [d/l] [select]
Re: Accessing CGI objects from within a 'require'-ed file? by ruzam (Curate) on Jun 21, 2006 at 22:12 UTC
Just for yucks, what happens if you replace outputPost with: `sub outputPOST { my $cgi = $main::GLOBAL{'query'}; print $cgi->Vars; }` [download] 'use warnings' will probably shed more light on the problem if you aren't already.	[reply] [d/l]
Re: Accessing CGI objects from within a 'require'-ed file? by shmem (Chancellor) on Jun 22, 2006 at 10:30 UTC
Yes, it's permissions. Just one note for functions.pl: `use strict; our %GLOBAL; sub outputTest { print $GLOBAL{'test'}; } sub outputPOST { print $GLOBAL{'query'}->Vars; } 1;` [download] use strict and declaring vars with our is good practice. Since `%GLOBAL` is declared with "our", both files share the same variable. That's what our is about. No need to fully qualify `%GLOBAL` with the package name. cheers, --shmem _($_=" "x(1<<5)."?\n".q·/)Oo. G°\ / /\_¯/(q / ---------------------------- \__(m.====·.(_("always off the crowd"))."· ");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}	[reply] [d/l] [select]


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