AddToCalendarIcsController.php in Open Social 10.3.x

Namespace

Drupal\social_event_addtocal\Controller

File

modules/social_features/social_event/modules/social_event_addtocal/src/Controller/AddToCalendarIcsController.php

<?php

namespace Drupal\social_event_addtocal\Controller;

use Drupal\Core\Controller\ControllerBase;
use Drupal\Core\File\FileSystemInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\BinaryFileResponse;
use Symfony\Component\HttpFoundation\Request;

/**
 * Class AddToCalendarIcsController.
 */
class AddToCalendarIcsController extends ControllerBase {

  /**
   * The current request.
   *
   * @var \Symfony\Component\HttpFoundation\Request
   */
  protected $request;

  /**
   * The file system service.
   *
   * @var \Drupal\Core\File\FileSystemInterface
   */
  protected $fileSystem;

  /**
   * AddToCalendarIcsController constructor.
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   The current request.
   * @param \Drupal\Core\File\FileSystemInterface $file_system
   *   The file system service.
   */
  public function __construct(Request $request, FileSystemInterface $file_system) {
    $this->request = $request;
    $this->fileSystem = $file_system;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('request_stack')
      ->getCurrentRequest(), $container
      ->get('file_system'));
  }

  /**
   * Download generated ICS file.
   *
   * @return \Symfony\Component\HttpFoundation\BinaryFileResponse
   *   Empty array.
   */
  public function downloadIcs() {

    // Event dates.
    $dates = $this->request
      ->get('dates');

    // Create ICS filename.
    $name = md5(serialize($this->request->query
      ->all()));
    $filename = $name . '.ics';

    // ICS file destination.
    $file = 'temporary://' . $filename;

    // Generate data for ICS file if it not exists.
    if (!file_exists($file)) {

      // Set initial data.
      $file_data = [
        'BEGIN:VCALENDAR',
        'VERSION:2.0',
        'METHOD:PUBLISH',
        'BEGIN:VEVENT',
        'UID:' . $name,
        'SUMMARY:' . $this->request
          ->get('title'),
      ];

      // Set start and end datetime for event.
      if ($dates['all_day']) {
        $file_data[] = 'DTSTART:' . $dates['start'];
        $file_data[] = 'DTEND:' . $dates['end'];
      }
      else {
        $file_data[] = 'DTSTART;TZID=' . $dates['start'];
        $file_data[] = 'DTEND;TZID=' . $dates['end'];
      }

      // Set location.
      if ($this->request
        ->get('description')) {
        $file_data[] = 'DESCRIPTION:' . $this->request
          ->get('description');
      }

      // Set description.
      if ($this->request
        ->get('location')) {
        $file_data[] = 'LOCATION:' . $this->request
          ->get('location');
      }

      // Set end of file.
      $file_data[] = 'END:VEVENT';
      $file_data[] = 'END:VCALENDAR';

      // Convert array to correct ICS format.
      $data = implode("\r\n", $file_data);

      // Save datta to file.
      $this->fileSystem
        ->saveData($data, $file, FileSystemInterface::EXISTS_REPLACE);
    }

    // Set response for file download.
    $response = new BinaryFileResponse($file);
    $response->headers
      ->set('Content-Type', 'application/calendar; charset=utf-8');
    $response
      ->setContentDisposition('attachment', $filename);
    return $response;
  }

}

Classes

Name	Description
AddToCalendarIcsController	Class AddToCalendarIcsController.