QNetworkAccessManager proxy issue

[dholliday]

I'm having problems getting through a proxy. If I use the following code.

QWebView a;
a.load(QUrl("http:\\google.co.uk"));
a.show();

QWebView a;
a.load(QUrl("http:\\google.co.uk"));
a.show();

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The request fails, because I'm behind a proxy. Which is fine and I understand that. So if I amend the code to :

QNetworkProxyFactory::setUseSystemConfiguration ( true) ;
QWebView a;
a.load(QUrl("http:\\google.co.uk"));
a.show();

QNetworkProxyFactory::setUseSystemConfiguration ( true) ;
QWebView a;
a.load(QUrl("http:\\google.co.uk"));
a.show();

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Everything works fine. I see the google page and I'm not prompted to input my proxy user name or password.
Now this is where I have my problem. I don't want to use a GUI. I'm trying to automate a process at work so I thought I would use QNetworkAccessManager to the same result.

So heres my code :

QUrl a("http://google.co.uk");
    QNetworkAccessManager *manager = new QNetworkAccessManager(this);
 
    QNetworkProxyQuery npq(a);
    QList<QNetworkProxy> listOfProxies = QNetworkProxyFactory::systemProxyForQuery(npq);
 
    if (listOfProxies.count() !=0){
        if (listOfProxies.at(0).type() != QNetworkProxy::NoProxy)    {
            manager->setProxy(listOfProxies.at(0));
            std::cerr << "Using Proxy " << listOfProxies.at(0).hostName().toStdString() << "\n";
        }
    }
 
    connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(outPutPage(QNetworkReply*)));
    manager->get(QNetworkRequest(a));

QUrl a("http://google.co.uk");
    QNetworkAccessManager *manager = new QNetworkAccessManager(this);

    QNetworkProxyQuery npq(a);
    QList<QNetworkProxy> listOfProxies = QNetworkProxyFactory::systemProxyForQuery(npq);

    if (listOfProxies.count() !=0){
        if (listOfProxies.at(0).type() != QNetworkProxy::NoProxy)    {
            manager->setProxy(listOfProxies.at(0));
            std::cerr << "Using Proxy " << listOfProxies.at(0).hostName().toStdString() << "\n";
        }
    }

    connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(outPutPage(QNetworkReply*)));
    manager->get(QNetworkRequest(a));

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Now without a proxy this code works fine and I see the HTML printed to the screen. However when running behind a proxy (that requires authentication) I see the code telling me its "Using Proxy" but the code fails even if I supply a valid username and password, it just keeps reporting that the proxy requires authentication. I have tried many different combinations, using QNetworkProxyFactory::setUseSystemConfiguration ( true) ; setting the application proxy.

Does anyone have any idea how I might resolve this. Or is there a class I can use in the QWebKit that doesn't have the over head of rendering. I'm only interested in the data being sent a received. Or doesn't anyone know what the QWebKit class does differently to QNetworkAccessManager::setProxy?

All help will be appreciated.

Regards

Dan