// Include the files if it was requested.
                    include_once($allplugins[$plugin] . DIRECTORY_SEPARATOR . $file);
                } else if (!$fileexists) {
                    // If the file is not available any more it should not be returned.
                    $dirty = true;
                    break 2;
                }

                // Check if the function still exists in the file.
                if ($include && !function_exists($function)) {
                    $dirty = true;
                    break 2;
                }
            }
        }

        // If the cache is dirty, we should fall through and let it rebuild.
        if (!$dirty) {
            if ($migratedtohook && $file === 'lib.php') {
                $pluginfunctions = $filtermigrated($plugincallback, $pluginfunctions);
            }
            return $pluginfunctions;
        }
    }

    $pluginfunctions = array();

    // To fill the cached. Also, everything should continue working with cache disabled.
    $plugintypes = \core_component::get_plugin_types();
    foreach ($plugintypes as $plugintype => $unused) {

        // We need to include files here.
        $pluginswithfile = \core_component::get_plugin_list_with_file($plugintype, $file, true);
        $installedplugins = $pluginmanager->get_installed_plugins($plugintype);
        foreach ($pluginswithfile as $plugin => $notused) {

            if (!isset($installedplugins[$plugin])) {
                continue;
            }

    public function add_html(?string $output): void {
        if ($output) {
            $this->output .= $output;
        }
    }

    /**
     * Returns all HTML added by the plugins
     *
     * @return string
     */
    public function get_output(): string {
        return $this->output;
    }

    /**
     * Process legacy callbacks.
     */
    public function process_legacy_callbacks(): void {
        $pluginswithfunction = get_plugins_with_function(function: 'before_footer', migratedtohook: true);
        foreach ($pluginswithfunction as $plugins) {
            foreach ($plugins as $function) {
                $extrafooter = $function();
                if (is_string($extrafooter)) {
                    $this->add_html($extrafooter);
                }
            }
        }
    }
}
 

        $PAGE = $this->page;
        $COURSE = $this->page->course;

        ob_start();
        include($layoutfile);
        $rendered = ob_get_contents();
        ob_end_clean();
        return $rendered;
    }

    /**
     * Outputs the page's footer
     *
     * @return string HTML fragment
     */
    public function footer() {
        global $CFG, $DB, $PERF;

        $hook = new before_footer_html_generation($this);
        $hook->process_legacy_callbacks();
        di::get(hook_manager::class)->dispatch($hook);
        $hook->add_html($this->container_end_all(true));
        $output = $hook->get_output();

        $footer = $this->opencontainers->pop('header/footer');

        if (debugging() and $DB and $DB->is_transaction_started()) {
            // TODO: MDL-20625 print warning - transaction will be rolled back
        }

        // Provide some performance info if required
        $performanceinfo = '';
        if (MDL_PERF || (!empty($CFG->perfdebug) && $CFG->perfdebug > 7)) {
            if (MDL_PERFTOFOOT || debugging() || (!empty($CFG->perfdebug) && $CFG->perfdebug > 7)) {
                if (NO_OUTPUT_BUFFERING) {
                    // If the output buffer was off then we render a placeholder and stream the
                    // performance debugging into it at the very end in the shutdown handler.
                    $PERF->perfdebugdeferred = true;
                    $performanceinfo .= html_writer::tag(
                        'div',

$PAGE->set_title($loginsite);
$PAGE->set_heading("$site->fullname");

echo $OUTPUT->header();

if (isloggedin() and !isguestuser()) {
    // prevent logging when already logged in, we do not want them to relogin by accident because sesskey would be changed
    echo $OUTPUT->box_start();
    $logout = new single_button(new moodle_url('/login/logout.php', array('sesskey'=>sesskey(),'loginpage'=>1)), get_string('logout'), 'post');
    $continue = new single_button(new moodle_url('/'), get_string('cancel'), 'get');
    echo $OUTPUT->confirm(get_string('alreadyloggedin', 'error', fullname($USER)), $logout, $continue);
    echo $OUTPUT->box_end();
} else {
    $loginform = new \core_auth\output\login($authsequence, $frm->username);
    $loginform->set_error($errormsg);
    $loginform->set_info($infomsg);
    echo $OUTPUT->render($loginform);
}

echo $OUTPUT->footer();