DefaultController.php in Download 8.2

Contains \Drupal\download\Controller\DefaultController.

Namespace

Drupal\download\Controller

File

src/Controller/DefaultController.php

<?php

/**
 * @file
 * Contains \Drupal\download\Controller\DefaultController.
 */
namespace Drupal\download\Controller;

use Drupal\Core\Controller\ControllerBase;
use Drupal\Core\Entity\Entity;
use Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem;
use Drupal\field\Entity\FieldConfig;
use Drupal\file\Entity\File;
use PclZip;
use Symfony\Component\HttpKernel\Exception\ServiceUnavailableHttpException;

/**
 * Default controller for the download module.
 */
class DefaultController extends ControllerBase {
  public function download_download($bundle, $entity_type, $fieldname, $entity_id, $delta) {
    $field_name = 'download';
    $files = [];
    $entity_storage = \Drupal::entityTypeManager()
      ->getStorage($entity_type, [
      $entity_id,
    ]);
    $entity = $entity_storage
      ->load($entity_id);
    if (!class_exists('PclZip')) {
      throw new ServiceUnavailableHttpException();
    }
    $instances = $entity
      ->getFieldDefinitions();
    $filename = $entity_type . '-' . $entity_id . '-' . $delta;
    foreach ($instances as $instance) {
      if ($instance instanceof FieldConfig && $instance
        ->getType() == 'download_link' && $instance
        ->getName() == $fieldname) {
        $field_name = $instance
          ->getName();
        if (!empty($instance
          ->getSettings()['download_filename'])) {
          $filename = $this
            ->_download_get_filename($instance
            ->getSettings()['download_filename'], $entity, $entity_type);
        }
      }
    }
    $fields = $entity
      ->get($field_name);
    foreach ($fields as $field) {
      $fieldnames = $fields = unserialize($field->download_fields);
    }
    foreach ($fieldnames as $fieldname) {
      if ($fieldname) {
        foreach ($entity
          ->get($fieldname) as $field_obj) {
          if ($field_obj instanceof EntityReferenceItem) {

            // TODO need to get the actual file entity somehow !!!
            $file_entity_info = $field_obj
              ->getValue();
            $file_entity = File::load($file_entity_info['target_id']);
            $files[] = \Drupal::service("file_system")
              ->realpath($file_entity
              ->getFileUri());
          }
        }
      }
    }
    $filename = $filename . '.zip';
    $tmp_file = file_save_data('', 'temporary://' . $filename);
    $tmp_file->status = 0;
    $tmp_file
      ->save();
    $archive = new PclZip(\Drupal::service("file_system")
      ->realpath($tmp_file
      ->getFileUri()));
    $archive
      ->add($files, PCLZIP_OPT_REMOVE_ALL_PATH);
    \Drupal::moduleHandler()
      ->invokeAll('download_download', [
      $files,
      $entity,
    ]);
    header("Content-Type: application/force-download");
    header('Content-Description: File Transfer');
    header('Content-Disposition: inline; filename=' . $filename);
    readfile(\Drupal::service("file_system")
      ->realpath($tmp_file
      ->getFileUri()));
    exit;
  }
  private function _download_get_filename($filename, $entity, $entity_type) {
    $fn = \Drupal::token()
      ->replace(\Drupal\Component\Utility\Html::escape($filename), array(
      $entity_type => $entity,
    ));
    $fn = preg_replace("/[^a-zA-Z0-9\\.\\-_]/", "", $fn);
    return $fn;
  }

}

Classes

Name	Description
DefaultController	Default controller for the download module.