StudipController.php

<?php
/*
 * StudipController.php - studip controller base class
 * Copyright (c) 2009  Elmar Ludwig
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 */

use DebugBar\DebugBar;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Writer\Csv;
use PhpOffice\PhpSpreadsheet\Writer\Xlsx;

/**
 * @property StudipResponse $response
 */
abstract class StudipController extends Trails\Controller
{
    use StudipControllerPropertiesTrait;

    protected $with_session = false; //do we need to have a session for this controller
    protected $allow_nobody = true; //should 'nobody' allowed for this controller or redirected to login?
    protected $_autobind = false;

    /**
     * @return false|void
     */
    public function before_filter(&$action, &$args)
    {
        $this->current_action = $action;
        // allow only "word" characters in arguments
        $this->validate_args($args);

        parent::before_filter($action, $args);

        if ($this->with_session) {
            # open session
            page_open([
                'sess' => 'Seminar_Session',
                'auth' => $this->allow_nobody ? 'Seminar_Default_Auth' : 'Seminar_Auth',
                'perm' => 'Seminar_Perm',
                'user' => 'Seminar_User'
            ]);

            // show login-screen, if authentication is "nobody"
            $GLOBALS['auth']->login_if((Request::get('again') || !$this->allow_nobody) && $GLOBALS['user']->id == 'nobody');

            // Setup flash instance
            $this->flash = Trails\Flash::instance();

            // set up user session
            include 'lib/seminar_open.php';
        }

        // Set generic attribute that indicates whether the request was sent
        // via ajax or not
        $this->via_ajax = Request::isXhr();

        # Set base layout
        #
        # If your controller needs another layout, overwrite your controller's
        # before filter:
        #
        #   class YourController extends AuthenticatedController {
        #     function before_filter(&$action, &$args) {
        #       parent::before_filter($action, $args);
        #       $this->set_layout("your_layout");