function _system_theme_settings_validate_path

Helper function for the system_theme_settings form.

Attempts to validate normal system paths, paths relative to the public files directory, or stream wrapper URIs. If the given path is any of the above, returns a valid path or URI that the theme system can display.

Parameters

$path: A path relative to the Drupal root or to the public files directory, or a stream wrapper URI.

Return value

mixed A valid path that can be displayed through the theme system, or FALSE if the path could not be validated.

File

drupal/core/modules/system/system.admin.inc, line 672

Admin page callbacks for the system module.

Code

function _system_theme_settings_validate_path($path) {

  // Absolute local file paths are invalid.
  if (drupal_realpath($path) == $path) {
    return FALSE;
  }

  // A path relative to the Drupal root or a fully qualified URI is valid.
  if (is_file($path)) {
    return $path;
  }

  // Prepend 'public://' for relative file paths within public filesystem.
  if (file_uri_scheme($path) === FALSE) {
    $path = 'public://' . $path;
  }
  if (is_file($path)) {
    return $path;
  }
  return FALSE;
}