function file_get_content_headers in Drupal 8

Same name and namespace in other branches

1. 7 includes/file.inc \file_get_content_headers()
2. 9 core/modules/file/file.module \file_get_content_headers()

Examines a file entity and returns appropriate content headers for download.

Parameters

\Drupal\file\FileInterface $file: A file entity.

Return value

array An associative array of headers, as expected by \Symfony\Component\HttpFoundation\StreamedResponse.

3 calls to file_get_content_headers()

editor_file_download in core/modules/editor/editor.module

Implements hook_file_download().

file_file_download in core/modules/file/file.module

Implements hook_file_download().

file_test_file_download in core/modules/file/tests/file_test/file_test.module

Implements hook_file_download().

File

core/modules/file/file.module, line 640

Defines a "managed_file" Form API field and a "file" field for Field module.

Code

function file_get_content_headers(FileInterface $file) {
  $type = Unicode::mimeHeaderEncode($file
    ->getMimeType());
  return [
    'Content-Type' => $type,
    'Content-Length' => $file
      ->getSize(),
    'Cache-Control' => 'private',
  ];
}