filefield_sources_jsonapi-8.x-1.0-beta9/src/RemoteFileController.php

<?php

namespace Drupal\filefield_sources_jsonapi;

use Drupal\Core\Controller\ControllerBase;
use GuzzleHttp\Exception\RequestException;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Symfony\Component\HttpFoundation\BinaryFileResponse;

/**
 * Retrieve file via curl call for filefield source JSON API.
 */
class RemoteFileController extends ControllerBase {

  /**
   * Get file via curl and return it.
   */
  public static function getRemoteFile() {
    $myConfig = \Drupal::config('filefield_sources_jsonapi');
    $username = $myConfig->get('username');
    $password = $myConfig->get('password');

    $url = \Drupal::request()->query->get('url');
    $temporary_directory = 'temporary://';
    $url_info = parse_url($url);
    $filename = rawurldecode(basename($url_info['path']));
    $filepath = \Drupal::service('file_system')->createFilename($filename, $temporary_directory);

    $client = \Drupal::httpClient();
    try {
      $fp = @fopen($filepath, 'w');
      $authorization_options = [
        'auth' => [
          $username,
          $password,
        ],
      ];
      $request = $client->get($url, $authorization_options);
      $file_contents = $request->getBody()->getContents();
      fwrite($fp, $file_contents);
      fclose($fp);
    }
    catch (RequestException $e) {
      // An error happened.
      \Drupal::logger('filefield_sources_jsonapi')
        ->log(E_ERROR, 'url %url could not be fetched', ['%url' => $url]);
      switch ($e->getCode()) {
        case 403:
          \Drupal::logger('filefield_sources_jsonapi')->notice(t('The remote file could not be transferred because access to the file was denied.'));
          break;

        case 404:
          \Drupal::logger('filefield_sources_jsonapi')->notice(t('The remote file could not be transferred because it was not found.'));
          break;

        default:
          \Drupal::logger('filefield_sources_jsonapi')->notice(t('The remote file could not be transferred due to an HTTP error (@code).', ['@code' => $e->getCode()]));
      }
      return;
    }

    if ($file_contents !== NULL) {
      $mime = \Drupal::service('file.mime_type.guesser')->guessMimeType($filepath);
      $headers = [
        'Content-Type' => $mime,
        'Content-Length' => filesize($filepath),
        'Cache-Control' => 'private',
      ];
      return new BinaryFileResponse($filepath, 200, $headers, FALSE);
    }
    throw new NotFoundHttpException();
  }

}