function social_content_get_image_file in Social Content 7

Fetches an external image and saves it to the files_managed table.

Helper function, used by modules implementing social content types.

Parameters

string $url: The url for where to grab the image from.

string $field_name: Machine name of the field this image will be attached to. Required to work out the uri_scheme.

string $min_resolution: (Optional) The min_resolution to check for.

Return value

object|bool Returns a file object ready to be attached to a field (or FALSE).

3 calls to social_content_get_image_file()

social_content_facebook_post_callback in modules/facebook/social_content_facebook.module

social_content_instagram_post_callback in modules/instagram/social_content_instagram.module

social_content_twitter_post_callback in modules/twitter/social_content_twitter.module

File

./social_content.module, line 429

Social Content module.

Code

function social_content_get_image_file($url, $field_name, $min_resolution = NULL) {
  if (!$url) {
    return FALSE;
  }
  $result = drupal_http_request($url);
  if ($result->code != 200) {
    return FALSE;
  }

  // Find the image extension
  // Facebook has generic /graph/picture urls that redirect.
  // So look for a redirect url first in the response.
  if (isset($result->redirect_url)) {
    $path_info = pathinfo($result->redirect_url);
  }
  else {
    $path_info = pathinfo($url);
  }

  // TODO: Create a nice filename from the content type.
  $filename = $path_info['basename'];
  $field_info = field_info_field($field_name);
  $field_uri_scheme = $field_info['settings']['uri_scheme'];
  $file = file_save_data($result->data, $field_uri_scheme . '://' . $filename, FILE_EXISTS_RENAME);
  if (!$file) {
    return FALSE;
  }
  if ($min_resolution) {
    $validators = array(
      'file_validate_is_image' => array(),
      'file_validate_image_resolution' => array(
        0,
        $min_resolution,
      ),
    );
    if (file_validate($file, $validators)) {
      return FALSE;
    }
  }

  // Add additional fields (required for adding to a file field).
  return array(
    'fid' => $file->fid,
    'filename' => $file->filename,
    'filemime' => $file->filemime,
    'uid' => 1,
    'uri' => $file->uri,
    'status' => 1,
    'display' => 1,
  );
}