Извлечение данных с веб-страницы в виде XML

QT       += core network
 
QT       -= gui
 
QMAKE_CXXFLAGS += -std=c++11
 
TARGET = HTMLContent
CONFIG   += console
CONFIG   -= app_bundle
 
TEMPLATE = app
 
 
SOURCES += main.cpp
 
HEADERS += \
    NetworkManager.h \
    Receiver.h

#ifndef NETWORKMANAGER_H
#define NETWORKMANAGER_H
 
#include <memory>
#include <string>
#include <QObject>
#include <QString>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QNetworkRequest>
 
class NetworkManager : public QObject
{
    Q_OBJECT
 
public:
 
    NetworkManager( )
    {
        m_manager = std::unique_ptr<QNetworkAccessManager>( new QNetworkAccessManager( this ) );
    }
 
    void fetch( const QString &url )
    {
        // Start fetching
        m_reply.reset( m_manager->get( QNetworkRequest( QUrl( url ) ) ) );
        connect( m_reply.get( ), SIGNAL( finished( ) ),
                 this, SLOT( replyFinished( ) ) );
    }
 
signals:
    void signalWithContent( const QString content );
 
private slots:
    void replyFinished( )
    {
        QByteArray data = m_reply->readAll( );
        QString content( data );
        signalWithContent( content );
    }
 
private:
    std::unique_ptr<QNetworkReply> m_reply;
    std::unique_ptr<QNetworkAccessManager> m_manager;
};
 
#endif // NETWORKMANAGER_H

#ifndef RECEIVER_H
#define RECEIVER_H
 
#include <QDebug>
 
class Receiver : public QObject
{
    Q_OBJECT
 
public slots:
    void showContent( const QString &content )
    {
        qDebug() << content;
    }
};
 
#endif // RECEIVER_H

#include <QCoreApplication>
#include "NetworkManager.h"
#include "Receiver.h"
 
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
 
    NetworkManager manager;
    Receiver receiver;
 
    QObject::connect( &manager, SIGNAL( signalWithContent( QString ) ),
                      &receiver, SLOT( showContent( QString ) ) );
 
    manager.fetch( "http://www.gokgs.com" );
 
    return a.exec();
}