#!/usr/local/bin/perl -Tw
use strict;
use CGI qw(:standard);
my $cheese_pic = 'http://www.pilpre.com/briac/cheesering2.gif';
my $url = url();
my $start = param('start') || 'CheeseLord';
my $go = param('go') || 'next';
my $referer = referer() || 'http://www.perlmonks.org';
my $tld = $referer =~ m[perlmonks\.([^/]+)/] ? $1 : 'org';
my $perlmonks = 'http://'.(($referer =~ m|www\.p|i)?'www.':'')."perlmo
+nks.$tld";
my $list = 'cheese.list';
sysopen( LIST, $list, 0 ) or die "Cannot open '$list': $!\n";
# do we need flocking here?
chomp( my @ring = <LIST> );
close LIST;
my ( $start_index, $loc );
foreach ( 0 .. $#ring ) {
if ( $ring[$_] eq $start ) { $start_index = $_; last }
}
my %dispatch = (
'first' => sub { $ring[0] },
'last' => sub { $ring[-1] },
'next' => sub { cycle(1) },
'previous' => sub { cycle(-1) },
'next5' => sub { cycle(5) },
'prev5' => sub { cycle(-5) },
'random' => sub { $ring[ rand @ring ] },
'list' => sub { list() },
'add' => sub { add($start) },
);
$go = 'next' unless exists $dispatch{$go};
$loc = &{ $dispatch{$go} } || $ring[0];
$loc =~ s/([\W_])/sprintf('%%%02X', $1)/eg; # [\W_] suggested by Chees
+eLord
print redirect( $perlmonks . '/index.pl?node=' . $loc );
exit(0);
#
sub list {
my @urls =
map {
my $name = $_;
s/([\W_])/sprintf('%%%02X', $1)/eg; # [\W_] suggested by Chees
+eLord (again!)
a( { -href => $perlmonks . '/index.pl?
node=' . $_ }, $name )
} @ring;
print header(), start_html('Cheesy Ring Members'),
h1('Cheesy Ring Members'), p( img( { -src => $cheese_pic } ) ),
+hr(),
ul( li( { -type => 'disc' }, \@urls ) ), end_html();
exit(0);
}
#
sub cycle {
my $count = shift;
return ( $ring[ $start_index + $count ] ? $ring[ $start_index + $c
+ount ] :
$ring[ $start_index + $count - @ring ] );
}
#
sub add {
my $name = shift;
my $found;
open( LIST, "$list" ) or die "Cannot open '$list': $!\n";
flock( LIST, 1 );
while (<LIST>) {
$found++ if m/^$name$/i
}
close(LIST);
unless ($found){
push ( @ring, $name );
open( LIST, "+< $list" ) or die "Cannot open '$list': $!\n";
flock( LIST, 2 );
seek( LIST, 0, 0 );
truncate( LIST, 0 );
print LIST join ( "\n", @ring );
close(LIST);
}
my $inc = div(
{ -align => 'center' },
img({-src=> $cheese_pic}),
h2( $found ? "You're already a Cheese Member!" : 'Welcome to
+the Cheesy webring!' ),
p(small(tt(
join(' - ', map {
' [ ' . a({-href=> "$url?start=$name&go=$_"}, $_) . ' ]
+;'}
( 'previous', 'next', 'random', 'list', 'next5', 'prev5',
'first', 'last' )
) ) ) ), p( small(
"don't blame me for [Cheesy WebRing|this idea], it's [ar0n]'s fault!"
) ) );
$inc =~ s/&/&/g;
$inc =~ s/</</g;
$inc =~ s/>/>/g;
print header(), start_html('Cheesy Ring Members'),
h1('Cheesy Ring Members'),
p('Add the following code somewhere in your homenode:'), tt($inc
+), hr(),
end_html;
exit;
}
__DATA__
ar0n
CheeseLord
OeufMayo
blakem
thatguy
virtualsue
tinman
htoug
rob_au
As always, since I modified bits of the code while editing the node, it's perfectly normal if everything breaks.
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