void WebPage::authenticationRequired(QNetworkReply* reply, QAuthenticator* authenticator)
{
    QDialog* dialog = new QDialog(QApplication::activeWindow());
    dialog->setWindowTitle("HTTP Authentication");

    QGridLayout* layout = new QGridLayout(dialog);
    dialog->setLayout(layout);

    QLabel* messageLabel = new QLabel(dialog);
    messageLabel->setWordWrap(true);
    QString messageStr = QString("Enter with username and password for: %1");
    messageLabel->setText(messageStr.arg(reply->url().toString()));
    layout->addWidget(messageLabel, 0, 1);

#ifndef QT_NO_LINEEDIT
    QLabel* userLabel = new QLabel("Username:", dialog);
    layout->addWidget(userLabel, 1, 0);
    QLineEdit* userInput = new QLineEdit(dialog);
    layout->addWidget(userInput, 1, 1);

    QLabel* passLabel = new QLabel("Password:", dialog);
    layout->addWidget(passLabel, 2, 0);
    QLineEdit* passInput = new QLineEdit(dialog);
    passInput->setEchoMode(QLineEdit::Password);
    layout->addWidget(passInput, 2, 1);
#endif

    QDialogButtonBox* buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
            | QDialogButtonBox::Cancel, Qt::Horizontal, dialog);
    connect(buttonBox, SIGNAL(accepted()), dialog, SLOT(accept()));
    connect(buttonBox, SIGNAL(rejected()), dialog, SLOT(reject()));
    layout->addWidget(buttonBox, 3, 1);

    if (dialog->exec() == QDialog::Accepted) {
#ifndef QT_NO_LINEEDIT
        authenticator->setUser(userInput->text());
        authenticator->setPassword(passInput->text());
#endif
    }

    delete dialog;
}