[solved] Qt 5.4 - Proxy settings for QtWebEngine

[nando76]

Hi,

is there a way to use a proxy with authentication for QtWebEngine module?

It seems NetworkAccessManager is not used...

Greetings
Nando

[nando76]

Got it:

@
connect(m_webView->page(),
SIGNAL(proxyAuthenticationRequired(const QUrl &, QAuthenticator *, const QString &)),
this, SLOT(proxyAuthenticationRequired(const QUrl &, QAuthenticator *, const QString &)));
@

And then in the slot something like this:
@void AirportDisplayer::proxyAuthenticationRequired(const QUrl &, QAuthenticator *auth, const QString &)
{
qDebug() << "AirportDisplayer::proxyAuthenticationRequired:";

auth->setUser(FlightbookManager::instance().pilot()->proxyUsername());
auth->setPassword(FlightbookManager::instance().pilot()->proxyPassword());

}
@

[masum]

Thanks for sharing the solution.

[pcushman]

Can you share how you are setting up the proxy settings (host and port) for the QtWebEngine? My QWebEngineView does not honor the proxy settings made via the QNetworkProxy::setApplicationProxy(proxy) call.
thanks
Paul

[pcushman]

Can you share how you are setting up the proxy settings (host and port) for the QtWebEngine? My QWebEngineView does not honor the proxy settings made via the QNetworkProxy::setApplicationProxy(proxy) call.
thanks
Paul

[nando76]

Hi Paul.
i do it like this:

In my class i have a member of:
@
QNetworkProxy m_networkProxy;
@

in constructor of my class i create the QNetworkAccessManager:
@
m_networkAccessManager = new QNetworkAccessManager;
@

and the after loading proxy host, port,username and password i set it like this:
@
if (m_proxyEnabled) {
m_networkProxy.setType(QNetworkProxy::HttpProxy);
m_networkProxy.setHostName(m_ProxyHost);
m_networkProxy.setPort(m_ProxyPort);
m_networkProxy.setUser(m_ProxyUsername);
m_networkProxy.setPassword(m_ProxyPassword);
} else {
m_networkProxy.setType(QNetworkProxy::NoProxy);
}

// Apply the proxy to the QNetworkAccessManager
QNetworkProxy::setApplicationProxy(m_networkProxy);
m_pNetworkAccessManager->setProxy(m_networkProxy);

@

Hope that helps ;-)

Greetings
Nando

[nando76]

Hi Paul.
i do it like this:

In my class i have a member of:
@
QNetworkProxy m_networkProxy;
@

in constructor of my class i create the QNetworkAccessManager:
@
m_networkAccessManager = new QNetworkAccessManager;
@

and the after loading proxy host, port,username and password i set it like this:
@
if (m_proxyEnabled) {
m_networkProxy.setType(QNetworkProxy::HttpProxy);
m_networkProxy.setHostName(m_ProxyHost);
m_networkProxy.setPort(m_ProxyPort);
m_networkProxy.setUser(m_ProxyUsername);
m_networkProxy.setPassword(m_ProxyPassword);
} else {
m_networkProxy.setType(QNetworkProxy::NoProxy);
}

// Apply the proxy to the QNetworkAccessManager
QNetworkProxy::setApplicationProxy(m_networkProxy);
m_pNetworkAccessManager->setProxy(m_networkProxy);

@

Hope that helps ;-)

Greetings
Nando

[pcushman]

Hi Nando
I tried your suggestions but it did not work.
I have the following class and associated methods:

@
class LoginWebEngineView : public QWebEngineView
{
Q_OBJECT

public:
explicit LoginWebEngineView(QWidget *parent = 0, QSettings *settings = 0);
~LoginWebEngineView();
void setProxy();

private:
QSettings* m_pSettings;
QNetworkProxy m_networkProxy;
QNetworkAccessManager *m_pNetworkAccessManager;
};

LoginWebEngineView::LoginWebEngineView(QWidget *parent, QSettings *settings) :
QWebEngineView(parent)
{
m_pSettings = settings;
m_pNetworkAccessManager = new QNetworkAccessManager;

this->setParent(parent);
setProxy();

}

void
LoginWebEngineView::setProxy() {
if (m_pSettings->value("proxy_enabled", false).toBool()) {
QString host = m_pSettings->value("proxy_host", "").toString();
quint16 port = m_pSettings->value("proxy_port", 0).toUInt();
QString user = m_pSettings->value("proxy_user", "").toString();
QString password = m_pSettings->value("proxy_pass", "").toString();

    m_networkProxy.setType(QNetworkProxy::HttpProxy);
    m_networkProxy.setHostName(host);
    m_networkProxy.setPort(port);
    m_networkProxy.setUser(user);
    m_networkProxy.setPassword(password);
} else {
    m_networkProxy.setType(QNetworkProxy::NoProxy);
}

// Apply the proxy to the QNetworkAccessManager
QNetworkProxy::setApplicationProxy(m_networkProxy);
m_pNetworkAccessManager->setProxy(m_networkProxy);

}

@

If you see anything obvious, please let me know.
thanks
Paul

[pcushman]

Hi Nando
I tried your suggestions but it did not work.
I have the following class and associated methods:

@
class LoginWebEngineView : public QWebEngineView
{
Q_OBJECT

public:
explicit LoginWebEngineView(QWidget *parent = 0, QSettings *settings = 0);
~LoginWebEngineView();
void setProxy();

private:
QSettings* m_pSettings;
QNetworkProxy m_networkProxy;
QNetworkAccessManager *m_pNetworkAccessManager;
};

LoginWebEngineView::LoginWebEngineView(QWidget *parent, QSettings *settings) :
QWebEngineView(parent)
{
m_pSettings = settings;
m_pNetworkAccessManager = new QNetworkAccessManager;

this->setParent(parent);
setProxy();

}

void
LoginWebEngineView::setProxy() {
if (m_pSettings->value("proxy_enabled", false).toBool()) {
QString host = m_pSettings->value("proxy_host", "").toString();
quint16 port = m_pSettings->value("proxy_port", 0).toUInt();
QString user = m_pSettings->value("proxy_user", "").toString();
QString password = m_pSettings->value("proxy_pass", "").toString();

    m_networkProxy.setType(QNetworkProxy::HttpProxy);
    m_networkProxy.setHostName(host);
    m_networkProxy.setPort(port);
    m_networkProxy.setUser(user);
    m_networkProxy.setPassword(password);
} else {
    m_networkProxy.setType(QNetworkProxy::NoProxy);
}

// Apply the proxy to the QNetworkAccessManager
QNetworkProxy::setApplicationProxy(m_networkProxy);
m_pNetworkAccessManager->setProxy(m_networkProxy);

}

@

If you see anything obvious, please let me know.
thanks
Paul

[nando76]

Hi,
i see you have enhirted your class from QWebEngineView.
Try to inherit your class just from QObject and add a member for the
QWebEngineView which gets instantiated before the set proxy stuff:
@
QWebEngineView* m_webEngineView;
@

Maybe QWebEngine is looking for proxy settings while creation and there are no proxy stettings at construction time.

Greetings
Nando

[nando76]

Hi,
i see you have enhirted your class from QWebEngineView.
Try to inherit your class just from QObject and add a member for the
QWebEngineView which gets instantiated before the set proxy stuff:
@
QWebEngineView* m_webEngineView;
@

Maybe QWebEngine is looking for proxy settings while creation and there are no proxy stettings at construction time.

Greetings
Nando

[pcushman]

That did not help. My dialog is created in QtCreator, is it possible that this could be part of the issue?
thanks
Paul

[pcushman]

That did not help. My dialog is created in QtCreator, is it possible that this could be part of the issue?
thanks
Paul

[Peng]

@pcushman
Hi, have you solved your proxy problem now? Because I meet the same question as you.

Thanks,
Peng