Update: ctweten pointed out that your URL is definitely legal. Thanks!

To be honest, I'm not sure that you're URL is legal. Try a url like the following:

http://lezar.org/path/to/script/myscript?where=someval
[download]

/path/to/script/myscript should be the path and name of your script. where=somval is a name value pair that gets passed to the query string.

Then, use CGI to get the name/value pairs. You also shoudl use taint checking (that's the -T switch on the shebang line) and use strict to catch all sorts of problems. Here's an updated version of what you want to do:

#!/usr/bin/perl -wT
use strict;
use CGI qw/:standard/;

my $taintedWhere = param( 'where' );
my $where = ( $taintedWhere =~ /(\w+)/ );

if ( $where eq 'Front' ) {
    print header;
    print <<"    Mn";
    
    Some HTML

    Mn
} elsif ( $where eq 'WebMail' ) {
    print header;
    print <<"    WbMl";

    Some more HTML

    WbMl
} else {
    # $where is not what we expect, so we have an error routine here;
}
[download]

See perlsec for information on the security issues and you can also check out my online CGI course for further information. It's not complete, but it should give you a good start.

For easier debugging, try adding the following line to your script:

use CGI::Carp qw( fatalsToBrowser );
[download]

That will usually print useful debugging information to the browser. Just make sure that you remove this when you put the script on a production server! There's no sense proving crackers with additional information about how your script works.

Cheers,
Ovid

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