function _media_flickr_store_local in Media: Flickr 6

1 call to _media_flickr_store_local()

media_flickr_store_local in ./media_flickr.module

File

./media_flickr.utilities.inc, line 50

Utility functions for Media: Flickr.

Code

function _media_flickr_store_local($photo_code, $size) {
  static $count;

  // Obviously, only go forward if we have a photo_code.
  if ($photo_code) {

    // Get the URL to the original thumbnail.
    $thumbnail = media_flickr_photo_remote_url($photo_code, $size);

    // Go forward only if we have a URL to go by, and we haven't already
    // fetched our alloted remote images for this page load.
    if ($thumbnail && (($max = variable_get('media_flickr_max_saves', 10)) && $count < $max || !$max)) {

      // If we've attempted to save a thumbnail and failed,
      // let's not try again for awhile.
      if ($cached && ($cache = cache_get('media_flickr:' . $photo_code . ':' . $size, 'cache'))) {
        return $cache->data;
      }

      // We should only attempt to save a few photos at a time,
      // to keep from initial slow page loads.
      $count++;

      // Attempt to fetch the thumbnail from the provided URL.
      $image = file_get_contents($thumbnail);

      // Only go forward if we actually have an image stream.
      if ($image) {

        // Add in our check of the the file name length.
        $validators['file_validate_name_length'] = array();

        // Allow for transliteration, which will take unicode data and convert
        // it to US-ASCII for better file storage.
        if (module_exists('transliteration')) {

          // Transliterate our original URL.
          $thumbnail = transliteration_get($thumbnail);
        }

        // Our new filepath will be in the form of media-flickr-7351895427047-5.jpg.
        $basename = 'media-flickr-' . $photo_code . '-' . $size . '.' . pathinfo($thumbnail, PATHINFO_EXTENSION);

        // Get the base Drupal files path.
        $directory = file_directory_path();
        $dir = variable_get('media_flickr_image_path', '');
        if ($dir) {

          // Add the field's image path here.
          $directory .= '/' . $dir;
        }

        // Create a new filepath from our desired filename.
        $filepath = file_create_filename($basename, $directory);

        // Begin building file object.
        $file = new stdClass();

        // The new file will be associated with the global user.
        global $user;
        $file->uid = $user->uid;

        // Strip out the query if provided.
        $file->filename = parse_url($basename, PHP_URL_PATH);
        $file->filepath = parse_url($filepath, PHP_URL_PATH);

        // If we have mimedetect, then do so. Otherwise we make a best guess
        // based on the filename.
        $file->filemime = module_exists('mimedetect') ? mimedetect_mime($file) : file_get_mimetype($file->filename);

        // Rename potentially executable files, to help prevent exploits.
        if (preg_match('/\\.(php|pl|py|cgi|asp|js)$/i', $file->filename) && substr($file->filename, -4) != '.txt') {
          $file->filemime = 'text/plain';
          $file->filepath .= '.txt';
          $file->filename .= '.txt';
        }
        $file->source = 'media_flickr_fetch_remote_thumbnail';
        $file->destination = file_destination($file->filepath, $replace);
        $file->filesize = strlen($image);

        // Call the validation functions.
        $errors = array();
        foreach ($validators as $function => $args) {
          array_unshift($args, $file);
          $errors = array_merge($errors, call_user_func_array($function, $args));
        }

        // Check for validation errors.
        if (!empty($errors)) {
          $message = 'The remote Flickr image %name could not be saved.';
          $arguments = array(
            '%name' => $file->filename,
          );
          if (count($errors) > 1) {
            $message .= '<ul><li>' . implode('</li><li>', $errors) . '</li></ul>';
          }
          else {
            $message .= ' ' . array_pop($errors);
          }
          watchdog('media_flickr', $message, $arguments, WATCHDOG_ERROR);

          // Let's also cache it for awhile, as this can take a long time.
          cache_set('media_flickr:' . $photo_code . ':' . $size, url($thumbnail), 'cache', time() + variable_get('emfield_cache_duration', 3600));
          return $thumbnail;
        }
        if (!file_save_data($image, $file->filepath, FILE_EXISTS_RENAME)) {
          watchdog('file', 'Upload error. Could not move file %file to destination %destination.', array(
            '%file' => $file->filename,
            '%destination' => $file->destination,
          ));

          // Let's also cache it for awhile, as this can take a long time.
          cache_set('media_flickr:' . $photo_code . ':' . $size, url($thumbnail), 'cache', time() + variable_get('emfield_cache_duration', 3600));
          return $thumbnail;
        }

        // If we made it this far it's safe to record this file in the database.
        $file->status = FILE_STATUS_PERMANENT;
        $file->timestamp = time();
        drupal_write_record('files', $file);
        $flickr = new stdClass();
        $flickr->fid = $file->fid;
        $flickr->size = $size;
        $flickr->code = $photo_code;
        drupal_write_record('media_flickr_sizes', $flickr);

        // Let modules add additional properties to the yet barebone file object.
        // This uses the future hook_file from d7's API. Not sure if anything
        // actually uses this right now, but they might in the future.
        foreach (module_implements('file_insert') as $module) {
          $function = $module . '_file_insert';
          $function($file);
        }
        return $file->filepath;
      }

      // Let's also cache it for awhile, as this can take a long time.
      cache_set('media_flickr:' . $photo_code . ':' . $size, url($thumbnail), 'cache', time() + variable_get('emfield_cache_duration', 3600));
    }

    // As a failsafe, let's return the remote URL.
    return $thumbnail;
  }
}