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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "client_hints.h"
#include "profile_qt.h"
#include "web_contents_delegate_qt.h"
#include "web_engine_settings.h"
#include "components/embedder_support/user_agent_utils.h"
#include "components/keyed_service/content/browser_context_dependency_manager.h"
#include "content/public/browser/network_service_instance.h"
#include "extensions/buildflags/buildflags.h"
#include "services/network/public/cpp/is_potentially_trustworthy.h"
#include "services/network/public/cpp/network_quality_tracker.h"
#if BUILDFLAG(ENABLE_EXTENSIONS)
#include "components/guest_view/browser/guest_view_base.h"
#endif
namespace QtWebEngineCore {
// based on weblayer/browser/client_hints_factory.cc:
// Copyright 2020 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.
// static
ClientHints *ClientHintsFactory::GetForBrowserContext(content::BrowserContext *browser_context)
{
return static_cast<ClientHints*>(GetInstance()->GetServiceForBrowserContext(browser_context, true));
}
// static
ClientHintsFactory *ClientHintsFactory::GetInstance()
{
static base::NoDestructor<ClientHintsFactory> factory;
return factory.get();
}
ClientHintsFactory::ClientHintsFactory()
: BrowserContextKeyedServiceFactory("ClientHints", BrowserContextDependencyManager::GetInstance())
{
}
ClientHintsFactory::~ClientHintsFactory() = default;
KeyedService *ClientHintsFactory::BuildServiceInstanceFor(content::BrowserContext *context) const
{
return new ClientHints(context);
}
content::BrowserContext *ClientHintsFactory::GetBrowserContextToUse(content::BrowserContext *context) const
{
return context;
}
// based on components/client_hints/browser/in_memory_client_hints_controller_delegate.cc:
// Copyright 2022 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.
ClientHints::ClientHints(content::BrowserContext *context)
: context_(context)
{
}
ClientHints::~ClientHints() = default;
// Enabled Client Hints are only cached and not persisted in this
// implementation.
void ClientHints::PersistClientHints(const url::Origin &primary_origin,
content::RenderFrameHost *parent_rfh,
const std::vector<network::mojom::WebClientHintsType> &client_hints)
{
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
const GURL primary_url = primary_origin.GetURL();
DCHECK(primary_url.is_valid());
if (!network::IsUrlPotentiallyTrustworthy(primary_url))
return;
// Client hints should only be enabled when JavaScript is enabled.
if (!IsJavaScriptAllowed(primary_url, parent_rfh))
return;
blink::EnabledClientHints enabled_hints;
ProfileAdapter *profileAdapter = static_cast<ProfileQt *>(context_)->profileAdapter();
for (auto hint : client_hints) {
enabled_hints.SetIsEnabled(hint, profileAdapter->clientHintsEnabled());
}
accept_ch_cache_[primary_origin] = enabled_hints;
}
// Looks up enabled Client Hints for the URL origin, and adds additional Client
// Hints if set.
void ClientHints::GetAllowedClientHintsFromSource(const url::Origin &origin,
blink::EnabledClientHints *client_hints)
{
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(client_hints);
// Can not assert this, as we get here for unregistered custom schemes:
if (!network::IsOriginPotentiallyTrustworthy(origin))
return;
const auto &it = accept_ch_cache_.find(origin);
if (it != accept_ch_cache_.end()) {
*client_hints = it->second;
}
ProfileAdapter *profileAdapter = static_cast<ProfileQt *>(context_)->profileAdapter();
for (auto hint : additional_hints_)
client_hints->SetIsEnabled(hint, profileAdapter->clientHintsEnabled());
}
void ClientHints::SetAdditionalClientHints(const std::vector<network::mojom::WebClientHintsType> &hints)
{
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
additional_hints_ = hints;
}
void ClientHints::ClearAdditionalClientHints()
{
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
additional_hints_.clear();
}
network::NetworkQualityTracker *ClientHints::GetNetworkQualityTracker()
{
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (!network_quality_tracker_) {
network_quality_tracker_ =
std::make_unique<network::NetworkQualityTracker>(
base::BindRepeating(&content::GetNetworkService));
}
return network_quality_tracker_.get();
}
bool ClientHints::IsJavaScriptAllowed(const GURL &url, content::RenderFrameHost *parent_rfh)
{
content::WebContents *webContents = content::WebContents::FromRenderFrameHost(parent_rfh);
#if BUILDFLAG(ENABLE_EXTENSIONS)
if (webContents && guest_view::GuestViewBase::IsGuest(webContents))
webContents = guest_view::GuestViewBase::GetTopLevelWebContents(webContents);
#endif
if (webContents) {
WebContentsDelegateQt* delegate =
static_cast<WebContentsDelegateQt*>(webContents->GetDelegate());
if (delegate) {
WebEngineSettings *settings = delegate->webEngineSettings();
if (settings)
return settings->testAttribute(QWebEngineSettings::JavascriptEnabled);
}
}
return true;
}
bool ClientHints::AreThirdPartyCookiesBlocked(const GURL &url, content::RenderFrameHost *rfh)
{
return false; // we probably can not report anything more specific
}
blink::UserAgentMetadata ClientHints::GetUserAgentMetadata()
{
return static_cast<ProfileQt *>(context_)->userAgentMetadata();
}
void ClientHints::SetMostRecentMainFrameViewportSize(
const gfx::Size& viewport_size) {
viewport_size_ = viewport_size;
}
gfx::Size
ClientHints::GetMostRecentMainFrameViewportSize() {
return viewport_size_;
}
} // namespace
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