blob: d40682cd43965b34c868acb2590384520a152601 [file] [log] [blame]
// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/favicon/core/fallback_url_util.h"
#include "base/i18n/case_conversion.h"
#include "base/strings/utf_string_conversions.h"
#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
#include "url/gurl.h"
namespace {
const char* kFallbackIconTextForIP = "IP";
} // namespace
namespace favicon {
base::string16 GetFallbackIconText(const GURL& url) {
if (url.is_empty())
return base::string16();
std::string domain = net::registry_controlled_domains::GetDomainAndRegistry(
url, net::registry_controlled_domains::INCLUDE_PRIVATE_REGISTRIES);
if (domain.empty()) { // E.g., http://localhost/ or
if (url.HostIsIPAddress())
return base::ASCIIToUTF16(kFallbackIconTextForIP);
domain =;
if (domain.empty())
return base::string16();
// TODO(huangs): Handle non-ASCII ("xn--") domain names.
return base::i18n::ToUpper(base::ASCIIToUTF16(domain.substr(0, 1)));
} // namespace favicon