blob: bdb11bce32bd95b82d608ffe1d2d0666e19ffa39 [file] [log] [blame]
// Copyright 2012 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.
#import "ios/web/history_state_util.h"
#include "base/logging.h"
#include "url/gurl.h"
namespace web {
namespace history_state_util {
bool IsHistoryStateChangeValid(const GURL& currentUrl,
const GURL& toUrl) {
// These two checks are very important to the security of the page. We cannot
// allow the page to change the state to an invalid URL.
return toUrl.GetOrigin() == currentUrl.GetOrigin();
GURL GetHistoryStateChangeUrl(const GURL& currentUrl,
const GURL& baseUrl,
const std::string& destination) {
if (!baseUrl.is_valid())
return GURL();
GURL toUrl = baseUrl.Resolve(destination);
if (!toUrl.is_valid() || !IsHistoryStateChangeValid(currentUrl, toUrl))
return GURL();
return toUrl;
} // namespace history_state_util
} // namespace web