function _attachment_links_download in Attachment Links 6

Download the given file over HTTP.

Parameters

$filepath The local path to the file.:

Return value

None if the call was successful. Returns a themed 404 error page if the file could not be found.

1 call to _attachment_links_download()

attachment_links_retrieve in ./attachment_links.module

Fetch the reqested file for the given node.

File

./attachment_links.module, line 221

The Attachment Links module provides permanent links to files attached to a node. A single, easy-to-remember URL can be used to retrieve the preferred (canonical) or newest version of a file regardless of how many versions of that file have been…

Code

function _attachment_links_download($filepath) {

  // -- Copied from file_download().
  if (file_exists(file_create_path($filepath))) {
    $headers = module_invoke_all('file_download', $filepath);
    if (in_array(-1, $headers)) {
      return drupal_access_denied();
    }
    if (count($headers)) {

      // -- PHP's basepath function screws up filenames with a space in them.
      $parts = explode(DIRECTORY_SEPARATOR, $filepath);
      $name = array_pop($parts);

      // -- Backslashed escaped characters inside the filename value seem to
      // -- confuse browsers, so double quotes are converted to single quotes.
      // -- The browser will then adjust the filename to match the host OS'
      // -- filename restrictions.
      $name = str_replace('"', "'", $name);
      $headers[] = 'Expires: 0';
      $headers[] = 'Cache-Control: private';
      $headers[] = 'Pragma: cache';
      $headers[] = 'Content-Type: application/force-download';
      $headers[] = 'Content-Disposition: attachment; filename="' . $name . '"';
      file_transfer($filepath, $headers);
    }
  }
  return drupal_not_found();
}