cookieHeader static method

Map<String, String> cookieHeader(dynamic cookies, String url)

Returns the cookie header appropriate for this request, taken from the cookies list.

cookies can be a List

The returned map is the 'Cookie:' header, with the value=name; value2=name2 as the value.

Implementation

static Map<String, String> cookieHeader(dynamic cookies, String url) {
  final Uri uri;
  try {
    uri = Uri.parse(url);
  } catch (e) {
    _log.fine('Invalid url: $url error: $e');
    return {};
  }
  final List<Cookie> cookieList = switch (cookies) {
    http.Response response =>
      cookiesFromSetCookie(response.headers['set-cookie'] ?? ''),
    List<Cookie> list => list,
    String _ => cookiesFromSetCookie(cookies),
    _ => throw ArgumentError(
        'cookies parameter must be a http.Response object, a String or a List<Cookie>')
  };
  final path = uri.path.isNotEmpty ? uri.path : '/';
  final validCookies = cookieList.where((cookie) =>
      (cookie.maxAge == null || cookie.maxAge! > 0) &&
      (cookie.domain == null ||
          uri.host.endsWith(cookie.domain!) ||
          (cookie.domain!.startsWith('.') &&
              uri.host == cookie.domain!.substring(1))) &&
      (cookie.path == null || path.startsWith(cookie.path!)) &&
      (cookie.expires == null || cookie.expires!.isAfter(DateTime.now())) &&
      (!cookie.secure || uri.scheme == 'https'));
  final cookieHeaderValue = validCookies
      .map((c) => c.name.isNotEmpty ? '${c.name}=${c.value}' : c.value)
      .join('; ');
  return cookieHeaderValue.isNotEmpty ? {'Cookie': cookieHeaderValue} : {};
}