NOISSUE import google analytics from third party

See: https://github.com/HSAnet/qt-google-analytics

Sadly, the API and its internals are not acceptable and it needs changes
upstream likely wouldn't allow.

1 files changed, 923 insertions, 0 deletions

diff --git a/libraries/ganalytics/ganalytics.cpp b/libraries/ganalytics/ganalytics.cpp
new file mode 100644
index 00000000..e2caad50
--- /dev/null
+++ b/libraries/ganalytics/ganalytics.cpp
@@ -0,0 +1,923 @@
+#include "ganalytics.h"
+
+#include <QCoreApplication>
+#include <QDataStream>
+#include <QDateTime>
+#include <QDebug>
+#include <QLocale>
+#include <QNetworkAccessManager>
+#include <QNetworkReply>
+#include <QNetworkRequest>
+#include <QQueue>
+#include <QSettings>
+#include <QTimer>
+#include <QUrlQuery>
+#include <QUuid>
+
+#ifdef QT_GUI_LIB
+#include <QScreen>
+#include <QGuiApplication>
+#endif // QT_GUI_LIB
+
+#ifdef QT_QML_LIB
+#include <QQmlEngine>
+#include <QQmlContext>
+#endif // QT_QML_LIB
+
+struct QueryBuffer
+{
+    QUrlQuery postQuery;
+    QDateTime time;
+};
+
+/**
+ * Class Private
+ * Private members and functions.
+ */
+class GAnalytics::Private : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit Private(GAnalytics *parent = 0);
+    ~Private();
+
+    GAnalytics *q;
+
+    QNetworkAccessManager *networkManager;
+
+    QQueue<QueryBuffer> messageQueue;
+    QTimer timer;
+    QNetworkRequest request;
+    GAnalytics::LogLevel logLevel;
+
+    QString trackingID;
+    QString clientID;
+    QString userID;
+    QString appName;
+    QString appVersion;
+    QString language;
+    QString screenResolution;
+    QString viewportSize;
+
+    bool isSending;
+
+    const static int fourHours = 4 * 60 * 60 * 1000;
+    const static QString dateTimeFormat;
+
+public:
+    void logMessage(GAnalytics::LogLevel level, const QString &message);
+
+    QUrlQuery buildStandardPostQuery(const QString &type);
+#ifdef QT_GUI_LIB
+    QString getScreenResolution();
+#endif // QT_GUI_LIB
+    QString getUserAgent();
+    QString getSystemInfo();
+    QList<QString> persistMessageQueue();
+    void readMessagesFromFile(const QList<QString> &dataList);
+    QString getClientID();
+    QString getUserID();
+    void setUserID(const QString &userID);
+    void enqueQueryWithCurrentTime(const QUrlQuery &query);
+    void setIsSending(bool doSend);
+
+signals:
+    void postNextMessage();
+
+public slots:
+    void postMessage();
+    void postMessageFinished();
+};
+
+const QString GAnalytics::Private::dateTimeFormat  = "yyyy,MM,dd-hh:mm::ss:zzz";
+
+/**
+ * Constructor
+ * Constructs an object of class Private.
+ * @param parent
+ */
+GAnalytics::Private::Private(GAnalytics *parent)
+: QObject(parent)
+, q(parent)
+, networkManager(NULL)
+, request(QUrl("http://www.google-analytics.com/collect"))
+, logLevel(GAnalytics::Error)
+, isSending(false)
+{
+    clientID = getClientID();
+    userID = getUserID();
+    language = QLocale::system().name().toLower().replace("_", "-");
+#ifdef QT_GUI_LIB
+    screenResolution = getScreenResolution();
+#endif // QT_GUI_LIB
+    request.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");
+    appName = QCoreApplication::instance()->applicationName();
+    appVersion = QCoreApplication::instance()->applicationVersion();
+    request.setHeader(QNetworkRequest::UserAgentHeader, getUserAgent());
+    connect(this, SIGNAL(postNextMessage()), this, SLOT(postMessage()));
+    timer.start(30000);
+    connect(&timer, SIGNAL(timeout()), this, SLOT(postMessage()));
+}
+
+/**
+ * Destructor
+ * Delete an object of class Private.
+ */
+GAnalytics::Private::~Private()
+{
+}
+
+void GAnalytics::Private::logMessage(LogLevel level, const QString &message)
+{
+    if (logLevel > level)
+    {
+        return;
+    }
+
+    qDebug() << "[Analytics]" << message;
+}
+
+/**
+ * Build the POST query. Adds all parameter to the query
+ * which are used in every POST.
+ * @param type      Type of POST message. The event which is to post.
+ * @return query    Most used parameter in a query for a POST.
+ */
+QUrlQuery GAnalytics::Private::buildStandardPostQuery(const QString &type)
+{
+    QUrlQuery query;
+    query.addQueryItem("v", "1");
+    query.addQueryItem("tid", trackingID);
+    query.addQueryItem("cid", clientID);
+    if(!userID.isEmpty())
+    {
+        query.addQueryItem("uid", userID);
+    }
+    query.addQueryItem("t", type);
+    query.addQueryItem("ul", language);
+
+#ifdef QT_GUI_LIB
+    query.addQueryItem("vp", viewportSize);
+    query.addQueryItem("sr", screenResolution);
+#endif // QT_GUI_LIB
+
+    return query;
+}
+
+#ifdef QT_GUI_LIB
+/**
+ * Get devicese screen resolution.
+ * @return      A QString like "800x600".
+ */
+QString GAnalytics::Private::getScreenResolution()
+{
+    QScreen *screen = QGuiApplication::primaryScreen();
+    QSize size = screen->size();
+
+    return QString("%1x%2").arg(size.width()).arg(size.height());
+}
+#endif // QT_GUI_LIB
+
+
+/**
+ * Try to gain information about the system where this application
+ * is running. It needs to get the name and version of the operating
+ * system, the language and screen resolution.
+ * All this information will be send in POST messages.
+ * @return agent        A QString with all the information formatted for a POST message.
+ */
+QString GAnalytics::Private::getUserAgent()
+{
+    QString locale = QLocale::system().name();
+    QString system = getSystemInfo();
+
+    return QString("%1/%2 (%3; %4) GAnalytics/1.0 (Qt/%5)").arg(appName).arg(appVersion).arg(system).arg(locale).arg(QT_VERSION_STR);
+}
+
+
+#ifdef Q_OS_MAC
+/**
+ * Only on Mac OS X
+ * Get the Operating system name and version.
+ * @return os   The operating system name and version in a string.
+ */
+QString GAnalytics::Private::getSystemInfo()
+{
+    QSysInfo::MacVersion version = QSysInfo::macVersion();
+    QString os;
+    switch (version)
+    {
+    case QSysInfo::MV_9:
+        os = "Macintosh; Mac OS 9";
+        break;
+    case QSysInfo::MV_10_0:
+        os = "Macintosh; Mac OS 10.0";
+        break;
+    case QSysInfo::MV_10_1:
+        os = "Macintosh; Mac OS 10.1";
+        break;
+    case QSysInfo::MV_10_2:
+        os = "Macintosh; Mac OS 10.2";
+        break;
+    case QSysInfo::MV_10_3:
+        os = "Macintosh; Mac OS 10.3";
+        break;
+    case QSysInfo::MV_10_4:
+        os = "Macintosh; Mac OS 10.4";
+        break;
+    case QSysInfo::MV_10_5:
+        os = "Macintosh; Mac OS 10.5";
+        break;
+    case QSysInfo::MV_10_6:
+        os = "Macintosh; Mac OS 10.6";
+        break;
+    case QSysInfo::MV_10_7:
+        os = "Macintosh; Mac OS 10.7";
+        break;
+    case QSysInfo::MV_10_8:
+        os = "Macintosh; Mac OS 10.8";
+        break;
+    case QSysInfo::MV_10_9:
+        os = "Macintosh; Mac OS 10.9";
+        break;
+    case QSysInfo::MV_10_10:
+        os = "Macintosh; Mac OS 10.10";
+        break;
+    case QSysInfo::MV_10_11:
+        os = "Macintosh; Mac OS 10.11";
+        break;
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 8, 0))
+    case QSysInfo::MV_10_12:
+        os = "Macintosh; Mac OS 10.12";
+        break;
+#endif
+    case QSysInfo::MV_Unknown:
+        os = "Macintosh; Mac OS unknown";
+        break;
+    case QSysInfo::MV_IOS_5_0:
+        os = "iPhone; iOS 5.0";
+        break;
+    case QSysInfo::MV_IOS_5_1:
+        os = "iPhone; iOS 5.1";
+        break;
+    case QSysInfo::MV_IOS_6_0:
+        os = "iPhone; iOS 6.0";
+        break;
+    case QSysInfo::MV_IOS_6_1:
+        os = "iPhone; iOS 6.1";
+        break;
+    case QSysInfo::MV_IOS_7_0:
+        os = "iPhone; iOS 7.0";
+        break;
+    case QSysInfo::MV_IOS_7_1:
+        os = "iPhone; iOS 7.1";
+        break;
+    case QSysInfo::MV_IOS_8_0:
+        os = "iPhone; iOS 8.0";
+        break;
+    case QSysInfo::MV_IOS_8_1:
+        os = "iPhone; iOS 8.1";
+        break;
+    case QSysInfo::MV_IOS_8_2:
+        os = "iPhone; iOS 8.2";
+        break;
+    case QSysInfo::MV_IOS_8_3:
+        os = "iPhone; iOS 8.3";
+        break;
+    case QSysInfo::MV_IOS_8_4:
+        os = "iPhone; iOS 8.4";
+        break;
+    case QSysInfo::MV_IOS_9_0:
+        os = "iPhone; iOS 9.0";
+        break;
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 8, 0))
+    case QSysInfo::MV_IOS_9_1:
+        os = "iPhone; iOS 9.1";
+        break;
+    case QSysInfo::MV_IOS_9_2:
+        os = "iPhone; iOS 9.2";
+        break;
+    case QSysInfo::MV_IOS_9_3:
+        os = "iPhone; iOS 9.3";
+        break;
+    case QSysInfo::MV_IOS_10_0:
+        os = "iPhone; iOS 10.0";
+        break;
+#endif
+    case QSysInfo::MV_IOS:
+        os = "iPhone; iOS unknown";
+        break;
+    default:
+        os = "Macintosh";
+        break;
+    }
+    return os;
+}
+#endif
+
+#ifdef Q_OS_WIN
+/**
+ * Only on Windows
+ * Get operating system and its version.
+ * @return os   A QString containing the oprating systems name and version.
+ */
+QString GAnalytics::Private::getSystemInfo()
+{
+    QSysInfo::WinVersion version = QSysInfo::windowsVersion();
+    QString os("Windows; ");
+    switch (version)
+    {
+    case QSysInfo::WV_95:
+        os += "Win 95";
+        break;
+    case QSysInfo::WV_98:
+        os += "Win 98";
+        break;
+    case QSysInfo::WV_Me:
+        os += "Win ME";
+        break;
+    case QSysInfo::WV_NT:
+        os += "Win NT";
+        break;
+    case QSysInfo::WV_2000:
+        os += "Win 2000";
+        break;
+    case QSysInfo::WV_2003:
+        os += "Win Server 2003";
+        break;
+    case QSysInfo::WV_VISTA:
+        os += "Win Vista";
+        break;
+    case QSysInfo::WV_WINDOWS7:
+        os += "Win 7";
+        break;
+    case QSysInfo::WV_WINDOWS8:
+        os += "Win 8";
+        break;
+    case QSysInfo::WV_WINDOWS8_1:
+        os += "Win 8.1";
+        break;
+      case QSysInfo::WV_WINDOWS10:
+        os += "Win 10";
+        break;
+    default:
+        os = "Windows; unknown";
+        break;
+    }
+    return os;
+}
+#endif
+
+#if defined(Q_OS_ANDROID)
+#include <QAndroidJniObject>
+
+QString GAnalytics::Private::getSystemInfo()
+{
+    return QString("Linux; U; Android %1; %2 %3 Build/%4; %5")
+            .arg(QAndroidJniObject::getStaticObjectField<jstring>("android/os/Build$VERSION", "RELEASE").toString())
+            .arg(QAndroidJniObject::getStaticObjectField<jstring>("android/os/Build", "MANUFACTURER").toString())
+            .arg(QAndroidJniObject::getStaticObjectField<jstring>("android/os/Build", "MODEL").toString())
+            .arg(QAndroidJniObject::getStaticObjectField<jstring>("android/os/Build", "ID").toString())
+            .arg(QAndroidJniObject::getStaticObjectField<jstring>("android/os/Build", "BRAND").toString());
+}
+#elif defined(Q_OS_LINUX)
+#include <sys/utsname.h>
+
+/**
+ * Only on Unix systems.
+ * Get operation system name and version.
+ * @return os       A QString with the name and version of the operating system.
+ */
+QString GAnalytics::Private::getSystemInfo()
+{
+    struct utsname buf;
+    uname(&buf);
+    QString system(buf.sysname);
+    QString release(buf.release);
+
+    return system + "; " + release;
+}
+#endif
+
+
+/**
+ * The message queue contains a list of QueryBuffer object.
+ * QueryBuffer holds a QUrlQuery object and a QDateTime object.
+ * These both object are freed from the buffer object and
+ * inserted as QString objects in a QList.
+ * @return dataList     The list with concartinated queue data.
+ */
+QList<QString> GAnalytics::Private::persistMessageQueue()
+{
+    QList<QString> dataList;
+    foreach (QueryBuffer buffer, messageQueue)
+    {
+        dataList << buffer.postQuery.toString();
+        dataList << buffer.time.toString(dateTimeFormat);
+    }
+
+    return dataList;
+}
+
+/**
+ * Reads persistent messages from a file.
+ * Gets all message data as a QList<QString>.
+ * Two lines in the list build a QueryBuffer object.
+ */
+void GAnalytics::Private::readMessagesFromFile(const QList<QString> &dataList)
+{
+    QListIterator<QString> iter(dataList);
+    while (iter.hasNext())
+    {
+        QString queryString = iter.next();
+        QString dateString = iter.next();
+        QUrlQuery query;
+        query.setQuery(queryString);
+        QDateTime dateTime = QDateTime::fromString(dateString, dateTimeFormat);
+        QueryBuffer buffer;
+        buffer.postQuery = query;
+        buffer.time = dateTime;
+        messageQueue.enqueue(buffer);
+    }
+}
+
+/**
+ * Change the user id.
+ * @param userID         A string with the user id.
+ */
+void GAnalytics::Private::setUserID(const QString &userID)
+{
+    this->userID = userID;
+    QSettings settings;
+    settings.setValue("GAnalytics-uid", userID);
+}
+
+/**
+ * Get the user id.
+ * User id once created is stored in application settings.
+ * @return userID         A string with the user id.
+ */
+QString GAnalytics::Private::getUserID()
+{
+    QSettings settings;
+    QString userID = settings.value("GAnalytics-uid", QString("")).toString();
+
+    return userID;
+}
+
+/**
+ * Get the client id.
+ * Client id once created is stored in application settings.
+ * @return clientID         A string with the client id.
+ */
+QString GAnalytics::Private::getClientID()
+{
+    QSettings settings;
+    QString clientID;
+    if (!settings.contains("GAnalytics-cid"))
+    {
+        clientID = QUuid::createUuid().toString();
+        settings.setValue("GAnalytics-cid", clientID);
+    }
+    else
+    {
+        clientID = settings.value("GAnalytics-cid").toString();
+    }
+
+    return clientID;
+}
+
+/**
+ * Takes a QUrlQuery object and wrapp it together with
+ * a QTime object into a QueryBuffer struct. These struct
+ * will be stored in the message queue.
+ * @param query
+ */
+void GAnalytics::Private::enqueQueryWithCurrentTime(const QUrlQuery &query)
+{
+    QueryBuffer buffer;
+    buffer.postQuery = query;
+    buffer.time = QDateTime::currentDateTime();
+
+    messageQueue.enqueue(buffer);
+}
+
+/**
+ * Change status of class. Emit signal that status was changed.
+ * @param doSend
+ */
+void GAnalytics::Private::setIsSending(bool doSend)
+{
+    if (doSend)
+    {
+        timer.stop();
+    }
+    else
+    {
+        timer.start();
+    }
+
+    bool changed = (isSending != doSend);
+
+    isSending = doSend;
+
+    if (changed)
+    {
+        emit q->isSendingChanged(isSending);
+    }
+}
+
+
+/**
+ * CONSTRUCTOR  GAnalytics
+ * ------------------------------------------------------------------------------------------------------------
+ * Constructs the GAnalytics Object.
+ * @param parent        The application which uses this object.
+ * @param trackingID
+ * @param clientID
+ * @param withGet       Determines wheather the messages are send with GET or POST.
+ */
+GAnalytics::GAnalytics(QObject *parent)
+: QObject(parent)
+, d(new Private(this))
+{
+}
+
+GAnalytics::GAnalytics(const QString &trackingID, QObject *parent)
+: QObject(parent)
+, d(new Private(this))
+{
+    setTrackingID(trackingID);
+}
+
+/**
+ * Destructor of class GAnalytics.
+ */
+GAnalytics::~GAnalytics()
+{
+    delete d;
+}
+
+void GAnalytics::setLogLevel(GAnalytics::LogLevel logLevel)
+{
+    if (d->logLevel != logLevel)
+    {
+        d->logLevel = logLevel;
+        emit logLevelChanged();
+    }
+}
+
+GAnalytics::LogLevel GAnalytics::logLevel() const
+{
+    return d->logLevel;
+}
+
+// SETTER and GETTER
+void GAnalytics::setViewportSize(const QString &viewportSize)
+{
+    if (d->viewportSize != viewportSize)
+    {
+        d->viewportSize = viewportSize;
+        emit viewportSizeChanged();
+    }
+}
+
+QString GAnalytics::viewportSize() const
+{
+    return d->viewportSize;
+}
+
+void GAnalytics::setLanguage(const QString &language)
+{
+    if (d->language != language)
+    {
+        d->language = language;
+        emit languageChanged();
+    }
+}
+
+QString GAnalytics::language() const
+{
+    return d->language;
+}
+
+void GAnalytics::setTrackingID(const QString &trackingID)
+{
+    if (d->trackingID != trackingID)
+    {
+        d->trackingID = trackingID;
+        emit trackingIDChanged();
+    }
+}
+
+QString GAnalytics::trackingID() const
+{
+    return d->trackingID;
+}
+
+void GAnalytics::setSendInterval(int milliseconds)
+{
+    if (d->timer.interval() != milliseconds)
+    {
+        d->timer.setInterval(milliseconds);
+        emit sendIntervalChanged();
+    }
+}
+
+int GAnalytics::sendInterval() const
+{
+    return (d->timer.interval());
+}
+
+void GAnalytics::startSending()
+{
+    if (!isSending())
+      emit d->postNextMessage();
+}
+
+bool GAnalytics::isSending() const
+{
+    return d->isSending;
+}
+
+void GAnalytics::setNetworkAccessManager(QNetworkAccessManager *networkAccessManager)
+{
+    if (d->networkManager != networkAccessManager)
+    {
+        // Delete the old network manager if it was our child
+        if (d->networkManager && d->networkManager->parent() == this)
+        {
+            d->networkManager->deleteLater();
+        }
+
+        d->networkManager = networkAccessManager;
+    }
+}
+
+QNetworkAccessManager *GAnalytics::networkAccessManager() const
+{
+    return d->networkManager;
+}
+
+static void appendCustomValues(QUrlQuery &query, const QVariantMap &customValues) {
+  for(QVariantMap::const_iterator iter = customValues.begin(); iter != customValues.end(); ++iter) {
+    query.addQueryItem(iter.key(), iter.value().toString());
+  }
+}
+
+
+/**
+* SentAppview is called when the user changed the applications view.
+* Deprecated because after SDK Version 3.08 and up no more "appview" event:
+* Use sendScreenView() instead
+* @param appName
+* @param appVersion
+* @param screenName
+*/
+void GAnalytics::sendAppView(const QString &screenName,
+                             const QVariantMap &customValues)
+{
+    sendScreenView(screenName, customValues);
+}
+
+/**
+ * Sent screen view is called when the user changed the applications view.
+ * These action of the user should be noticed and reported. Therefore
+ * a QUrlQuery is build in this method. It holts all the parameter for
+ * a http POST. The UrlQuery will be stored in a message Queue.
+ * @param appName
+ * @param appVersion
+ * @param screenName
+ */
+void GAnalytics::sendScreenView(const QString &screenName,
+                                const QVariantMap &customValues)
+{
+    d->logMessage(Info, QString("ScreenView: %1").arg(screenName));
+
+    QUrlQuery query = d->buildStandardPostQuery("screenview");
+    query.addQueryItem("cd", screenName);
+    query.addQueryItem("an", d->appName);
+    query.addQueryItem("av", d->appVersion);
+    appendCustomValues(query, customValues);
+
+    d->enqueQueryWithCurrentTime(query);
+}
+
+/**
+ * This method is called whenever a button was pressed in the application.
+ * A query for a POST message will be created to report this event. The
+ * created query will be stored in a message queue.
+ * @param eventCategory
+ * @param eventAction
+ * @param eventLabel
+ * @param eventValue
+ */
+void GAnalytics::sendEvent(const QString &category, const QString &action,
+                           const QString &label, const QVariant &value,
+                           const QVariantMap &customValues)
+{
+    QUrlQuery query = d->buildStandardPostQuery("event");
+    query.addQueryItem("an", d->appName);
+    query.addQueryItem("av", d->appVersion);
+    query.addQueryItem("ec", category);
+    query.addQueryItem("ea", action);
+    if (! label.isEmpty())
+        query.addQueryItem("el", label);
+    if (value.isValid())
+        query.addQueryItem("ev", value.toString());
+
+    appendCustomValues(query, customValues);
+
+    d->enqueQueryWithCurrentTime(query);
+}
+
+/**
+ * Method is called after an exception was raised. It builds a
+ * query for a POST message. These query will be stored in a
+ * message queue.
+ * @param exceptionDescription
+ * @param exceptionFatal
+ */
+void GAnalytics::sendException(const QString &exceptionDescription,
+                               bool exceptionFatal,
+                               const QVariantMap &customValues)
+{
+    QUrlQuery query = d->buildStandardPostQuery("exception");
+    query.addQueryItem("an", d->appName);
+    query.addQueryItem("av", d->appVersion);
+
+    query.addQueryItem("exd", exceptionDescription);
+
+    if (exceptionFatal)
+    {
+        query.addQueryItem("exf", "1");
+    }
+    else
+    {
+        query.addQueryItem("exf", "0");
+    }
+    appendCustomValues(query, customValues);
+
+    d->enqueQueryWithCurrentTime(query);
+}
+
+/**
+ * Session starts. This event will be sent by a POST message.
+ * Query is setup in this method and stored in the message
+ * queue.
+ */
+void GAnalytics::startSession()
+{
+	QVariantMap customValues;
+	customValues.insert("sc", "start");
+	sendEvent("Session", "Start", QString(), QVariant(), customValues);
+}
+
+/**
+ * Session ends. This event will be sent by a POST message.
+ * Query is setup in this method and stored in the message
+ * queue.
+ */
+void GAnalytics::endSession()
+{
+	QVariantMap customValues;
+	customValues.insert("sc", "end");
+	sendEvent("Session", "End", QString(), QVariant(), customValues);
+}
+
+/**
+ * This function is called by a timer interval.
+ * The function tries to send a messages from the queue.
+ * If message was successfully send then this function
+ * will be called back to send next message.
+ * If message queue contains more than one message then
+ * the connection will kept open.
+ * The message POST is asyncroniously when the server
+ * answered a signal will be emitted.
+ */
+void GAnalytics::Private::postMessage()
+{
+    if (messageQueue.isEmpty())
+    {
+        setIsSending(false);
+        return;
+    }
+    else
+    {
+        setIsSending(true);
+    }
+
+    QString connection = "close";
+    if (messageQueue.count() > 1)
+    {
+        connection = "keep-alive";
+    }
+
+    QueryBuffer buffer = messageQueue.head();
+    QDateTime sendTime = QDateTime::currentDateTime();
+    qint64 timeDiff = buffer.time.msecsTo(sendTime);
+
+    if(timeDiff > fourHours)
+    {
+        // too old.
+        messageQueue.dequeue();
+        emit postNextMessage();
+        return;
+    }
+
+    buffer.postQuery.addQueryItem("qt", QString::number(timeDiff));
+    request.setRawHeader("Connection", connection.toUtf8());
+    request.setHeader(QNetworkRequest::ContentLengthHeader, buffer.postQuery.toString().length());
+
+    // Create a new network access manager if we don't have one yet
+    if (networkManager == NULL)
+    {
+        networkManager = new QNetworkAccessManager(this);
+    }
+
+    QNetworkReply *reply = networkManager->post(request, buffer.postQuery.query(QUrl::EncodeUnicode).toUtf8());
+    connect(reply, SIGNAL(finished()), this, SLOT(postMessageFinished()));
+}
+
+/**
+ * NetworkAccsessManager has finished to POST a message.
+ * If POST message was successfully send then the message
+ * query should be removed from queue.
+ * SIGNAL "postMessage" will be emitted to send next message
+ * if there is any.
+ * If message couldn't be send then next try is when the
+ * timer emits its signal.
+ */
+void GAnalytics::Private::postMessageFinished()
+{
+    QNetworkReply *reply = qobject_cast<QNetworkReply*>(sender());
+
+    int httpStausCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+    if (httpStausCode < 200 || httpStausCode > 299)
+    {
+        logMessage(GAnalytics::Error, QString("Error posting message: %s").arg(reply->errorString()));
+
+        // An error ocurred.
+        setIsSending(false);
+        return;
+    }
+    else
+    {
+        logMessage(GAnalytics::Debug, "Message sent");
+    }
+
+    messageQueue.dequeue();
+    emit postNextMessage();
+    reply->deleteLater();
+}
+
+
+/**
+ * Qut stream to persist class GAnalytics.
+ * @param outStream
+ * @param analytics
+ * @return
+ */
+QDataStream &operator<<(QDataStream &outStream, const GAnalytics &analytics)
+{
+    outStream << analytics.d->persistMessageQueue();
+
+    return outStream;
+}
+
+
+/**
+ * In stream to read GAnalytics from file.
+ * @param inStream
+ * @param analytics
+ * @return
+ */
+QDataStream &operator >>(QDataStream &inStream, GAnalytics &analytics)
+{
+    QList<QString> dataList;
+    inStream >> dataList;
+    analytics.d->readMessagesFromFile(dataList);
+
+    return inStream;
+}
+
+#ifdef QT_QML_LIB
+void GAnalytics::classBegin()
+{
+    // Get the network access manager from the QmlEngine
+    QQmlContext *context = QQmlEngine::contextForObject(this);
+    if (context)
+    {
+        QQmlEngine *engine = context->engine();
+        setNetworkAccessManager(engine->networkAccessManager());
+    }
+}
+
+void GAnalytics::componentComplete()
+{
+}
+#endif // QT_QML_LIB
+
+#include "ganalytics.moc"
+