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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtNetwork 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qnetworkproxy.h"
#ifndef QT_NO_NETWORKPROXY
#include <QtCore/QByteArray>
#include <QtCore/QUrl>
#include <proxy.h>
QT_BEGIN_NAMESPACE
class QLibProxyWrapper
{
public:
QLibProxyWrapper()
: factory(px_proxy_factory_new())
{
if (!factory)
qWarning("libproxy initialization failed.");
}
~QLibProxyWrapper()
{
px_proxy_factory_free(factory);
}
QList<QUrl> getProxies(const QUrl &url);
private:
pxProxyFactory *factory;
};
Q_GLOBAL_STATIC(QLibProxyWrapper, libProxyWrapper);
/*
Gets the list of proxies from libproxy, converted to QUrl list.
Thread safe, according to libproxy documentation.
*/
QList<QUrl> QLibProxyWrapper::getProxies(const QUrl &url)
{
QList<QUrl> ret;
if (factory) {
char **proxies = px_proxy_factory_get_proxies(factory, url.toEncoded());
if (proxies) {
for (int i = 0; proxies[i]; i++) {
ret.append(QUrl::fromEncoded(proxies[i]));
free(proxies[i]);
}
free(proxies);
}
}
return ret;
}
QList<QNetworkProxy> QNetworkProxyFactory::systemProxyForQuery(const QNetworkProxyQuery &query)
{
QList<QNetworkProxy> proxyList;
QUrl queryUrl;
QNetworkProxy::Capabilities requiredCapabilities(0);
switch (query.queryType()) {
//URL requests are directly supported by libproxy
case QNetworkProxyQuery::UrlRequest:
queryUrl = query.url();
break;
// fake URLs to get libproxy to tell us the SOCKS proxy
case QNetworkProxyQuery::TcpSocket:
queryUrl.setScheme(QStringLiteral("tcp"));
queryUrl.setHost(query.peerHostName());
queryUrl.setPort(query.peerPort());
requiredCapabilities |= QNetworkProxy::TunnelingCapability;
break;
case QNetworkProxyQuery::UdpSocket:
queryUrl.setScheme(QStringLiteral("udp"));
queryUrl.setHost(query.peerHostName());
queryUrl.setPort(query.peerPort());
requiredCapabilities |= QNetworkProxy::UdpTunnelingCapability;
break;
default:
proxyList.append(QNetworkProxy(QNetworkProxy::NoProxy));
return proxyList;
}
const QList<QUrl> rawProxies = libProxyWrapper()->getProxies(queryUrl);
bool haveDirectConnection = false;
for (const QUrl& url : rawProxies) {
QNetworkProxy::ProxyType type;
const QString scheme = url.scheme();
if (scheme == QLatin1String("http")) {
type = QNetworkProxy::HttpProxy;
} else if (scheme == QLatin1String("socks")
|| scheme == QLatin1String("socks5")) {
type = QNetworkProxy::Socks5Proxy;
} else if (scheme == QLatin1String("ftp")) {
type = QNetworkProxy::FtpCachingProxy;
} else if (scheme == QLatin1String("direct")) {
type = QNetworkProxy::NoProxy;
haveDirectConnection = true;
} else {
continue; //unsupported proxy type e.g. socks4
}
QNetworkProxy proxy(type,
url.host(QUrl::EncodeUnicode),
url.port(0),
url.userName(QUrl::FullyDecoded),
url.password(QUrl::FullyDecoded));
if ((proxy.capabilities() & requiredCapabilities) == requiredCapabilities)
proxyList.append(proxy);
}
// fallback is direct connection
if (proxyList.isEmpty() || !haveDirectConnection)
proxyList.append(QNetworkProxy(QNetworkProxy::NoProxy));
return proxyList;
}
QT_END_NAMESPACE
#endif
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