common/include/QtNetwork/5.5.0/QtNetwork/private/qnetworkproxy_p.h

/****************************************************************************
**
** Copyright (C) 2009 David Faure <dfaure@kdab.net>
** Contact: http://www.qt.io/licensing/
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** This file is part of the QtNetwork module of the Qt Toolkit.
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#ifndef QNETWORKPROXY_P_H
#define QNETWORKPROXY_P_H


//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of the QLibrary class.  This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//

#ifndef QT_NO_NETWORKPROXY

QT_BEGIN_NAMESPACE

class QSystemConfigurationProxyFactory : public QNetworkProxyFactory
{
public:
    QSystemConfigurationProxyFactory() : QNetworkProxyFactory() {}

    virtual QList<QNetworkProxy> queryProxy(const QNetworkProxyQuery& query)
    {
        QList<QNetworkProxy> proxies = QNetworkProxyFactory::systemProxyForQuery(query);

        // Make sure NoProxy is in the list, so that QTcpServer can work:
        // it searches for the first proxy that can has the ListeningCapability capability
        // if none have (as is the case with HTTP proxies), it fails to bind.
        // NoProxy allows it to fallback to the 'no proxy' case and bind.
        proxies.append(QNetworkProxy::NoProxy);

        return proxies;
    }
};

QT_END_NAMESPACE

#endif // QT_NO_NETWORKINTERFACE

#endif