function PathProcessorImageStyles::processInbound

File

core/modules/image/src/PathProcessor/PathProcessorImageStyles.php, line 46

Class

PathProcessorImageStyles

Defines a path processor to rewrite image styles URLs.

Namespace

Code

public function processInbound($path, Request $request) {
  $directory_path = $this->streamWrapperManager
    ->getViaScheme('public')
    ->getDirectoryPath();
  if (strpos($path, '/' . $directory_path . '/styles/') === 0) {
    $path_prefix = '/' . $directory_path . '/styles/';
  }
  elseif (strpos($path, '/system/files/styles/') !== FALSE) {
    $path_prefix = '/system/files/styles/';
    $path = substr($path, strpos($path, $path_prefix), strlen($path));
  }
  else {
    return $path;
  }
  // Strip out path prefix.
  $rest = preg_replace('|^' . preg_quote($path_prefix, '|') . '|', '', $path);
  // Get the image style, scheme and path.
  if (substr_count($rest, '/') >= 2) {
    [$image_style, $scheme, $file] = explode('/', $rest, 3);
    // Set the file as query parameter.
    $request->query
      ->set('file', $file);
    return $path_prefix . $image_style . '/' . $scheme;
  }
  else {
    return $path;
  }
}