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// Copyright (C) 2023 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 "services/network/network_service.h"
#include "content/public/browser/network_service_instance.h"
#include "qwebengineglobalsettings.h"
#include "qwebengineglobalsettings_p.h"
QT_BEGIN_NAMESPACE
/*!
\class QWebEngineGlobalSettings
\brief The QWebEngineGlobalSettings class configures global properties of the web engine.
\since 6.6
\inmodule QtWebEngineCore
The QWebEngineGlobalSettings class is a singleton that configures global properties
of the web engine.
Invoke configureDnsOverHttps() to configure DNS-over-HTTPS capabilities.
\sa QWebEngineGlobalSettings::configureDnsOverHttps()
*/
QWebEngineGlobalSettings::QWebEngineGlobalSettings(QObject *p)
: QObject(p), d_ptr(new QWebEngineGlobalSettingsPrivate)
{
}
QWebEngineGlobalSettings::~QWebEngineGlobalSettings() { }
/*!
\fn QWebEngineGlobalSettings *QWebEngineGlobalSettings::GetInstance()
Gets the global instance of QWebEngineGlobalSettings.
*/
QWebEngineGlobalSettings *QWebEngineGlobalSettings::GetInstance()
{
static QWebEngineGlobalSettings settings;
return &settings;
}
/*!
\enum QWebEngineGlobalSettings::DnsMode
This enum sets the DNS-over-HTTPS mode:
\value WithFallback Enable DNS-over-HTTPS with fallbacks. If a host
can't be resolved, try the insecure DNS client of Chromium. If that fails as
well, try the system DNS host resolution, which can be secure or insecure.
\value Secure Enable DNS-over-HTTPS and only allow the secure Chromium
DNS client to resolve hosts.
*/
/*!
\fn QWebEngineGlobalSettings::configureDnsOverHttps(const DnsMode dnsMode,
const QString &dnsOverHttpsTemplates)
Configures the Chromium stub host resolver, thus allowing DNS-over-HTTPS functionality.
Set \a dnsMode to QWebEngineGlobalSettings::DnsMode::WithFallback to enable secure DNS
host resolution with a fallback to insecure DNS host resolution and a final fallback to
the system DNS resolution, which can be secure or insecure. Set it to
QWebEngineGlobalSettings::DnsMode::Secure to only allow secure DNS host resolution via
the Chromium DNS client.
Independently of \a {dnsMode}, \a dnsOverHttpsTemplates has to be set to one or multiple
valid \l{https://datatracker.ietf.org/doc/html/rfc6570}{URI templates} separated by
whitespace characters. One example URI template is https://dns.google/dns-query{?dns}.
*/
void QWebEngineGlobalSettings::configureDnsOverHttps(const DnsMode dnsMode,
const QString &dnsOverHttpsTemplates)
{
Q_D(QWebEngineGlobalSettings);
d->dnsMode = dnsMode;
d->dnsOverHttpsTemplates = dnsOverHttpsTemplates.toStdString();
d->isDnsOverHttpsUserConfigured = true;
// Make sure that DoH settings are in effect immediately if the network service already exists,
// thus allowing to change DoH configuration at any point
network::mojom::NetworkService *networkService = content::GetNetworkService();
if (networkService) {
networkService->ConfigureStubHostResolver(
d->insecureDnsClientEnabled, net::SecureDnsMode(d->dnsMode),
*net::DnsOverHttpsConfig::FromString(d->dnsOverHttpsTemplates),
d->additionalInsecureDnsTypesEnabled);
}
}
QT_END_NAMESPACE
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