[solved] Qt 5.4 - Proxy settings for QtWebEngine

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