Can't setup proxy credentials

Zabarne

Hi guys

I'm struggling to figure out why my QT6.5.3 application (macOS) can't set the proxy username and password.

The HTTP request arrives to my proxy as expected, but the username/password are not set.

#include <QUrl>
#include <QDebug>
#include <QSettings>
#include <QApplication>
#include <QNetworkProxy>
#include <QNetworkAccessManager>
#include <QWebEnginePage>
#include <QWebEngineView>
#include <QCoreApplication>
#include <QWebEngineSettings>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QNetworkProxy proxy;
    proxy.setType(QNetworkProxy::HttpProxy);
    proxy.setHostName(QString("127.0.0.1"));
    proxy.setPort(8084);
    proxy.setUser(QString("user"));
    proxy.setPassword(QString("password123"));
    QNetworkProxy::setApplicationProxy(proxy);

    QUrl url = QUrl(QStringLiteral("https://www.google.com/"));

    QWebEngineView view;
    QWebEnginePage page;
    view.setPage(&page);
    view.setUrl(url);
    view.show();

    return app.exec();
}

This is what my proxy gets:

CONNECT www.google.com:443 HTTP/1.1\r\n
Host: www.google.com:443\r\n
Proxy-Connection: keep-alive\r\n
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) QtWebEngine/6.5.3 Chrome/108.0.5359.220 Safari/537.36\r\n\r\n

Unfortunately, no Proxy-Authorization HTTP header was sent.

If i try the same test using cuRL, everything works as expected:

$ curl --proxy "http://127.0.0.1:8084" --proxy-user "user:password123" "https://www.google.com"

My proxy gets the following:

CONNECT www.google.com:443 HTTP/1.1\r\n
Host: www.google.com:443\r\n
Proxy-Authorization: Basic YXJjaGlkOmZvbw==\r\n
User-Agent: curl/8.3.0\r\n
Proxy-Connection: Keep-Alive\r\n\r\n

The Proxy-Authorization HTTP header was sent as expected.

What am i missing here?
Help appreciated.

SGaist

Hi,

Aren't you missing a call to QtWebEngine::initialize(); ?

Zabarne

@SGaist said in Can't setup proxy credentials:

QtWebEngine::initialize();

I'm unable to find the QT header file to include for "QtWebEngine"
This didn't work:

#include <QtWebEngine>

Hmmm ... this function QtWebEngine::initialize();doesn't seem to even exist under QT6.x (I'm using QT6.5.3).

Help please.

SGaist

Looks like things have changed a bit in Qt 6.
You check the bug report system as from your code, you seem to have done everything correctly.

Zabarne

@SGaist I created a ticket the same day. But no one was assigned to it
https://bugreports.qt.io/browse/QTBUG-117710

SGaist

Thanks for the ticket. Your conclusion is wrong though, the WebEngine team is assigned.