server/onyx/include/admin/home.php

<?php

if(!defined('ONYX')) exit;

if (is_writable(ONYX."../misc/") && !is_dir(ONYX."../misc/pki/"))
  mkdir(ONYX."../misc/pki/");

$wright = is_writable(ONYX."../misc/pki/");
$template->assign("cert_writable", $wright);

//TODO handle the path ?
$ca_file = ONYX . '../misc/pki/cacert.crt';

//TODO check permission ?
if (file_exists($ca_file))
{
    $data = openssl_x509_parse(file_get_contents(ONYX . '../misc/pki/cacert.crt'));
    $template->assign("cert", $data);
}

return "admin/home";