PSGI file to serving Nagios WebUI

nagios_web.psgi

use Plack::App::CGIBin;
use Plack::App::PHPCGIFile;
use Plack::Builder;
use Plack::Builder::Conditionals;

my $cgibin = Plack::App::CGIBin->new(
    root => "/usr/local/nagios/sbin",
    exec_cb => sub { my $file = shift; $file =~ m!\.cgi$! and -x $file },
)->to_app;
my $htdocs = Plack::App::PHPCGIFile->new(
    root => '/usr/local/nagios/share'
)->to_app;

builder {
    enable match_if addr([qw!127.0.0.1!]), 'ReverseProxy';
    enable sub {
        my $apps = shift;
        sub {
            my $env = shift;
            return [302,[Location=>'http://'.$env->{HTTP_HOST}.'/nagios/'],['moved']] if $env->{PATH_INFO} =~ m!^/(nagios)?$!;
            $env->{REMOTE_USER} = 'nagiosadmin';
            $env->{PATH_INFO} .= 'index.php'
                if $env->{PATH_INFO} =~ m!^/nagios/([^\.]+/)*$!;
            $apps->($env);
        };
    };
    mount '/nagios/cgi-bin' => $cgibin,
    mount '/nagios' => $htdocs,
}