[root@server01 httpdocs-apptconf]# cat app.fcgi
#!/usr/bin/perl
use lib '/var/www/vhosts/halo3.net/apps/Halo3-ApptConf/lib';
use Dancer;
use Halo3::ApptConf;
use Plack::Builder;
use FCGI::Engine::PSGI;

builder {
        enable_if {
            my $env = shift;
            my $url = $env->{'REQUEST_URI'};
            return false if ($url =~ /^\/smsreply/);
            return false if ($url =~ /^\/smscallback/);
            return true;
         } 'Plack::Middleware::Auth::Basic', authenticator => \&Halo3::ApptConf::authenticate;
    dance;
};