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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtWebEngine module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
// Based on chrome/renderer/content_settings_observer.cc:
// Copyright (c) 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.
#include "content_settings_observer_qt.h"
#include "content/public/renderer/render_frame.h"
#include "third_party/blink/public/platform/web_security_origin.h"
#include "third_party/blink/public/web/web_plugin_document.h"
#include "third_party/blink/public/web/web_local_frame.h"
#include "url/origin.h"
#include "common/qt_messages.h"
using blink::WebSecurityOrigin;
using blink::WebString;
namespace {
bool IsUniqueFrame(blink::WebFrame *frame)
{
return frame->GetSecurityOrigin().IsOpaque() ||
frame->Top()->GetSecurityOrigin().IsOpaque();
}
} // namespace
namespace QtWebEngineCore {
ContentSettingsObserverQt::ContentSettingsObserverQt(content::RenderFrame *render_frame)
: content::RenderFrameObserver(render_frame)
, content::RenderFrameObserverTracker<ContentSettingsObserverQt>(render_frame)
, m_currentRequestId(0)
{
ClearBlockedContentSettings();
render_frame->GetWebFrame()->SetContentSettingsClient(this);
}
ContentSettingsObserverQt::~ContentSettingsObserverQt() {}
bool ContentSettingsObserverQt::OnMessageReceived(const IPC::Message &message)
{
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(ContentSettingsObserverQt, message)
IPC_MESSAGE_HANDLER(QtWebEngineMsg_RequestFileSystemAccessAsyncResponse, OnRequestFileSystemAccessAsyncResponse)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void ContentSettingsObserverQt::DidCommitProvisionalLoad(bool is_same_document_navigation, ui::PageTransition /*transition*/)
{
blink::WebLocalFrame *frame = render_frame()->GetWebFrame();
if (frame->Parent())
return; // Not a top-level navigation.
if (!is_same_document_navigation)
ClearBlockedContentSettings();
GURL url = frame->GetDocument().Url();
// If we start failing this DCHECK, please makes sure we don't regress
// this bug: http://code.google.com/p/chromium/issues/detail?id=79304
DCHECK(frame->GetDocument().GetSecurityOrigin().ToString() == "null" || !url.SchemeIs(url::kDataScheme));
}
void ContentSettingsObserverQt::OnDestruct()
{
delete this;
}
bool ContentSettingsObserverQt::AllowDatabase()
{
blink::WebFrame *frame = render_frame()->GetWebFrame();
if (IsUniqueFrame(frame))
return false;
bool result = false;
Send(new QtWebEngineHostMsg_AllowDatabase(routing_id(), url::Origin(frame->GetSecurityOrigin()).GetURL(),
url::Origin(frame->Top()->GetSecurityOrigin()).GetURL(), &result));
return result;
}
void ContentSettingsObserverQt::RequestFileSystemAccessAsync(base::OnceCallback<void(bool)> callback)
{
blink::WebFrame *frame = render_frame()->GetWebFrame();
if (IsUniqueFrame(frame)) {
std::move(callback).Run(false);
return;
}
++m_currentRequestId;
bool inserted = m_permissionRequests.insert(std::make_pair(m_currentRequestId, std::move(callback))).second;
// Verify there are no duplicate insertions.
DCHECK(inserted);
Send(new QtWebEngineHostMsg_RequestFileSystemAccessAsync(routing_id(), m_currentRequestId,
url::Origin(frame->GetSecurityOrigin()).GetURL(),
url::Origin(frame->Top()->GetSecurityOrigin()).GetURL()));
}
bool ContentSettingsObserverQt::AllowIndexedDB()
{
blink::WebFrame *frame = render_frame()->GetWebFrame();
if (IsUniqueFrame(frame))
return false;
bool result = false;
Send(new QtWebEngineHostMsg_AllowIndexedDB(routing_id(),
url::Origin(frame->GetSecurityOrigin()).GetURL(),
url::Origin(frame->Top()->GetSecurityOrigin()).GetURL(), &result));
return result;
}
bool ContentSettingsObserverQt::AllowStorage(bool local)
{
blink::WebLocalFrame *frame = render_frame()->GetWebFrame();
if (IsUniqueFrame(frame))
return false;
StoragePermissionsKey key(url::Origin(frame->GetDocument().GetSecurityOrigin()).GetURL(), local);
const auto permissions = m_cachedStoragePermissions.find(key);
if (permissions != m_cachedStoragePermissions.end())
return permissions->second;
bool result = false;
Send(new QtWebEngineHostMsg_AllowDOMStorage(routing_id(), url::Origin(frame->GetSecurityOrigin()).GetURL(),
url::Origin(frame->Top()->GetSecurityOrigin()).GetURL(), local, &result));
m_cachedStoragePermissions[key] = result;
return result;
}
void ContentSettingsObserverQt::OnRequestFileSystemAccessAsyncResponse(int request_id, bool allowed)
{
auto it = m_permissionRequests.find(request_id);
if (it == m_permissionRequests.end())
return;
base::OnceCallback<void(bool)> callback = std::move(it->second);
m_permissionRequests.erase(it);
std::move(callback).Run(allowed);
}
void ContentSettingsObserverQt::ClearBlockedContentSettings()
{
m_cachedStoragePermissions.clear();
}
} // namespace QtWebEngineCore
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