Response listDirectory()

in lib/src/directory_listing.dart [53:99]

• 39 lines of code
• 8 McCabe index (conditional complexity)

Response listDirectory(String fileSystemPath, String dirPath) {
  final controller = StreamController<List<int>>();
  const encoding = Utf8Codec();
  const sanitizer = HtmlEscape();

  void add(String string) {
    controller.add(encoding.encode(string));
  }

  var heading = path.relative(dirPath, from: fileSystemPath);
  if (heading == '.') {
    heading = '/';
  } else {
    heading = '/$heading/';
  }

  add(_getHeader(sanitizer.convert(heading)));

  // Return a sorted listing of the directory contents asynchronously.
  Directory(dirPath).list().toList().then((entities) {
    entities.sort((e1, e2) {
      if (e1 is Directory && e2 is! Directory) {
        return -1;
      }
      if (e1 is! Directory && e2 is Directory) {
        return 1;
      }
      return e1.path.compareTo(e2.path);
    });

    for (var entity in entities) {
      var name = path.relative(entity.path, from: dirPath);
      if (entity is Directory) name += '/';
      final sanitizedName = sanitizer.convert(name);
      add('    <li><a href="$sanitizedName">$sanitizedName</a></li>\n');
    }

    add(_trailer);
    controller.close();
  });

  return Response.ok(
    controller.stream,
    encoding: encoding,
    headers: {HttpHeaders.contentTypeHeader: 'text/html'},
  );
}