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   1  <?php
   2  
   3  /**
   4   * @package     Joomla.Administrator
   5   * @subpackage  com_scheduler
   6   *
   7   * @copyright   (C) 2021 Open Source Matters, Inc. <https://www.joomla.org>
   8   * @license     GNU General Public License version 2 or later; see LICENSE.txt
   9   */
  10  
  11  namespace Joomla\Component\Scheduler\Administrator\Controller;
  12  
  13  use Joomla\CMS\Language\Text;
  14  use Joomla\CMS\MVC\Controller\BaseController;
  15  use Joomla\CMS\Router\Route;
  16  
  17  // phpcs:disable PSR1.Files.SideEffects
  18  \defined('_JEXEC') or die;
  19  // phpcs:enable PSR1.Files.SideEffects
  20  
  21  /**
  22   * Default controller for com_scheduler.
  23   *
  24   * @since  4.1.0
  25   */
  26  class DisplayController extends BaseController
  27  {
  28      /**
  29       * @var   string
  30       * @since  4.1.0
  31       */
  32      protected $default_view = 'tasks';
  33  
  34      /**
  35       * @param   boolean  $cachable   If true, the view output will be cached
  36       * @param   array    $urlparams  An array of safe url parameters and their variable types, for valid values see
  37       *                               {@link InputFilter::clean()}.
  38       *
  39       * @return BaseController|boolean  Returns either a BaseController object to support chaining, or false on failure
  40       *
  41       * @since  4.1.0
  42       * @throws \Exception
  43       */
  44      public function display($cachable = false, $urlparams = array())
  45      {
  46          $layout = $this->input->get('layout', 'default');
  47  
  48          // Check for edit form.
  49          if ($layout === 'edit') {
  50              if (!$this->validateEntry()) {
  51                  $tasksViewUrl = Route::_('index.php?option=com_scheduler&view=tasks', false);
  52                  $this->setRedirect($tasksViewUrl);
  53  
  54                  return false;
  55              }
  56          }
  57  
  58          // Let the parent method take over
  59          return parent::display($cachable, $urlparams);
  60      }
  61  
  62      /**
  63       * Validates entry to the view
  64       *
  65       * @param   string  $layout  The layout to validate entry for (defaults to 'edit')
  66       *
  67       * @return boolean  True is entry is valid
  68       *
  69       * @since  4.1.0
  70       */
  71      private function validateEntry(string $layout = 'edit'): bool
  72      {
  73          $context = 'com_scheduler';
  74          $id      = $this->input->getInt('id');
  75          $isValid = true;
  76  
  77          switch ($layout) {
  78              case 'edit':
  79                  // True if controller was called and verified permissions
  80                  $inEditList = $this->checkEditId("$context.edit.task", $id);
  81                  $isNew      = ($id == 0);
  82  
  83                  // For new item, entry is invalid if task type was not selected through SelectView
  84                  if ($isNew && !$this->app->getUserState("$context.add.task.task_type")) {
  85                      $this->setMessage((Text::_('COM_SCHEDULER_ERROR_FORBIDDEN_JUMP_TO_ADD_VIEW')), 'error');
  86                      $isValid = false;
  87                  } elseif (!$inEditList) {
  88                      // For existing item, entry is invalid if TaskController has not granted access
  89                      if (!\count($this->app->getMessageQueue())) {
  90                          $this->setMessage(Text::sprintf('JLIB_APPLICATION_ERROR_UNHELD_ID', $id), 'error');
  91                      }
  92  
  93                      $isValid = false;
  94                  }
  95                  break;
  96              default:
  97                  break;
  98          }
  99  
 100          return $isValid;
 101      }
 102  }