#! /usr/bin/perl

#
# Rename existing sites in $SITES_AVAILABLE to make sure they have a
# .conf suffix. update symlinks in $SITES_ENABLED if necessary
#
# Warning: This script does not work if you didn't use a2ensite/a2dissite to
# manage your sites
#

use strict;
use File::Copy;
use File::Spec;
use File::Basename;

my $SITES_AVAILABLE = "/etc/apache2/sites-available";
my $SITES_ENABLED = "/etc/apache2/sites-enabled";

my %SITES = (
"$SITES_AVAILABLE" => [],
"$SITES_ENABLED" => []
);

sub error
{
my $reason = shift;
print STDERR "$reason\n";
exit 1;
}

foreach my $key (keys %SITES)
{
error("No such directory: $key") unless -d $key;

opendir(DIR, $key) || error("$key: $!");
push $SITES{$key}, grep { m#^[^\.]# && $_ !~ m/default|default-ssl/ && $_ !~ m#\.conf$# } readdir(DIR);
closedir(DIR);
}

foreach my $site (@{ $SITES{$SITES_AVAILABLE} })
{
print("rename $site -> $site.conf\n");
my $curname = $SITES_AVAILABLE . "/" . $site;
my $newname = $curname . ".conf";
my $curlink = $SITES_ENABLED . "/" . $site;
my $newlink = $curlink . ".conf";

if (-e $curname)
{
move($curname, $newname) || error("Could not rename file $curname: $!");
if ( grep { $_ eq $site && -l $SITES_ENABLED . "/" . $_ } @{ $SITES{$SITES_ENABLED} } )
{
print("re-enable site: $site as $site.conf\n");
symlink( File::Spec->abs2rel( $newname, dirname($newlink)), $newlink ) || error("Could not create link $newlink: $1");
if ( -l $curlink )
{
unlink($curlink)
}
}
}
}