C++ QDBusMessage::createReply方法代码示例

void MumbleDBus::getCurrentUrl(const QDBusMessage &msg) {
	if (!g.sh || !g.sh->isRunning() || ! g.uiSession) {
		QDBusConnection::sessionBus().send(msg.createErrorReply(QLatin1String("net.sourceforge.mumble.Error.connection"), QLatin1String("Not connected")));
		return;
	}
	QString host, user, pw;
	unsigned short port;
	QUrl u;

	g.sh->getConnectionInfo(host, port, user, pw);
	u.setScheme(QLatin1String("mumble"));
	u.setHost(host);
	u.setPort(port);
	u.setUserName(user);

#if QT_VERSION >= 0x050000
	QUrlQuery query;
	query.addQueryItem(QLatin1String("version"), QLatin1String("1.2.0"));
	u.setQuery(query);
#else
	u.addQueryItem(QLatin1String("version"), QLatin1String("1.2.0"));
#endif

	QStringList path;
	Channel *c = ClientUser::get(g.uiSession)->cChannel;
	while (c->cParent) {
		path.prepend(c->qsName);
		c = c->cParent;
	}
	u.setPath(path.join(QLatin1String("/")));
	QDBusConnection::sessionBus().send(msg.createReply(QString::fromLatin1(u.toEncoded())));
}

static QDBusMessage propertyWriteReply(const QDBusMessage &msg, const QString &interface_name,
                                       const QByteArray &property_name, int status)
{
    switch (status) {
    case PropertyNotFound:
        return propertyNotFoundError(msg, interface_name, property_name);
    case PropertyTypeMismatch:
        return msg.createErrorReply(QDBusError::InvalidArgs,
                                    QString::fromLatin1("Invalid arguments for writing to property %1%2%3")
                                    .arg(interface_name,
                                         QString::fromLatin1(interface_name.isEmpty() ? "" : "."),
                                         QString::fromLatin1(property_name)));
    case PropertyReadOnly:
        return msg.createErrorReply(QDBusError::PropertyReadOnly,
                                    QString::fromLatin1("Property %1%2%3 is read-only")
                                    .arg(interface_name,
                                         QString::fromLatin1(interface_name.isEmpty() ? "" : "."),
                                         QString::fromLatin1(property_name)));
    case PropertyWriteFailed:
        return msg.createErrorReply(QDBusError::InternalError,
                                    QString::fromLatin1("Internal error"));

    case PropertyWriteSuccess:
        return msg.createReply();
    }
    Q_ASSERT_X(false, "", "Should not be reached");
    return QDBusMessage();
}

void DBusObject::GetSignalEmissions(int object_id, QString signal_name, const QDBusMessage &message)
{
    QDBusMessage reply = message.createReply();
    SignalId signal(object_id, signal_name);

    if (signal_watchers_.contains(signal))
    {
        SignalSpyPtr signal_spy = signal_watchers_[signal];
        QList<QVariant> signal_emit_list;
        qDebug() << "Signal emissions" << signal_spy.data()->length() << signal_spy.data();
        for (int i = 0; i < signal_spy->length(); ++i)
        {
            QList<QVariant> signal_emission;
            foreach(const QVariant &arg, signal_spy->at(i)) {

                // We cannot marshall QObject* or QObject:
                // Marshalling a pointer through DBus makes no sense as its just an address to protected memory
                // Marshalling a QObject (without pointer) is not possible because of QObjects no-copy-nature
                if((int)arg.type() != (int)QMetaType::QObjectStar) {
                    signal_emission.append(arg);
                }
            }

            signal_emit_list.append(QVariant(signal_emission));
        }
        reply << QVariant(signal_emit_list);
    }

	Values AsebaNetworkInterface::GetVariable(const QString& node, const QString& variable, const QDBusMessage &message)
	{
		// make sure the node exists
		NodesNamesMap::const_iterator nodeIt(nodesNames.find(node));
		if (nodeIt == nodesNames.end())
		{
			DBusConnectionBus().send(message.createErrorReply(QDBusError::InvalidArgs, QString("node %0 does not exists").arg(node)));
			return Values();
		}
		const unsigned nodeId(nodeIt.value());
		
		unsigned pos(unsigned(-1));
		unsigned length(unsigned(-1));
		
		// check whether variable is user-defined
		const UserDefinedVariablesMap::const_iterator userVarMapIt(userDefinedVariablesMap.find(node));
		if (userVarMapIt != userDefinedVariablesMap.end())
		{
			const VariablesMap& userVarMap(userVarMapIt.value());
			const VariablesMap::const_iterator userVarIt(userVarMap.find(variable.toStdWString()));
			if (userVarIt != userVarMap.end())
			{
				pos = userVarIt->second.first;
				length = userVarIt->second.second;
			}
		}
		
		// if variable is not user-defined, check whether it is provided by this node
		if (pos == unsigned(-1))
		{
			bool ok1, ok2;
			pos = getVariablePos(nodeId, variable.toStdWString(), &ok1);
			length = getVariableSize(nodeId, variable.toStdWString(), &ok2);
			if (!(ok1 && ok2))
			{
				DBusConnectionBus().send(message.createErrorReply(QDBusError::InvalidArgs, QString("variable %0 does not exists in node %1").arg(variable).arg(node)));
				return Values();
			}
		}
		
		// send request to aseba network
		{
			GetVariables msg(nodeId, pos, length);
			hub->sendMessage(msg);
		}
		
		// build bookkeeping for async reply
		RequestData *request = new RequestData;
		request->nodeId = nodeId;
		request->pos = pos;
		message.setDelayedReply(true);
		request->reply = message.createReply();
		
		pendingReads.push_back(request);
		return Values();
	}

bool DeclarativeDBusAdaptor::handleMessage(const QDBusMessage &message, const QDBusConnection &connection)
{
    QVariant variants[10];
    QGenericArgument arguments[10];

    const QMetaObject * const meta = metaObject();
    const QVariantList dbusArguments = message.arguments();

    QString member = message.member();
    QString interface = message.interface();

    // Don't try to handle introspect call. It will be handled
    // internally for QDBusVirtualObject derived classes.
    if (interface == QLatin1String("org.freedesktop.DBus.Introspectable")) {
        return false;
    } else if (interface == QLatin1String("org.freedesktop.DBus.Properties")) {
        if (member == QLatin1String("Get")) {
            interface = dbusArguments.value(0).toString();
            member = dbusArguments.value(1).toString();

            const QMetaObject * const meta = metaObject();
            if (!member.isEmpty() && member.at(0).isUpper())
                member = "rc" + member;

            for (int propertyIndex = meta->propertyOffset();
                    propertyIndex < meta->propertyCount();
                    ++propertyIndex) {
                QMetaProperty property = meta->property(propertyIndex);

                if (QLatin1String(property.name()) != member)
                    continue;

                QVariant value = property.read(this);
                if (value.userType() == qMetaTypeId<QJSValue>())
                    value = value.value<QJSValue>().toVariant();

                if (value.userType() == QVariant::List) {
                    QVariantList variantList = value.toList();
                    if (variantList.count() > 0) {

                        QDBusArgument list;
                        list.beginArray(variantList.first().userType());
                        foreach (const QVariant &listValue, variantList) {
                            list << listValue;
                        }
                        list.endArray();
                        value = QVariant::fromValue(list);
                    }
                }

                QDBusMessage reply = message.createReply(QVariantList() << value);
                connection.call(reply, QDBus::NoBlock);

                return true;
            }

QScriptValue QScriptDBusMessageConstructor::createReply(QScriptContext *context, QScriptEngine *engine)
{
    QDBusMessage msg;
    scriptValueToMessage(context->thisObject(), msg);

    QList<QVariant> args;
    for (int i = 0; i < context->argumentCount(); ++i) {
        QScriptValue value = context->argument(i);
        args.append(value.toVariant());
    }

    return messageToScriptValue(engine, msg.createReply(args));
}

uchar SyncBackup::sendDelayReply (const QDBusMessage &message)
{
    FUNCTION_CALL_TRACE;
#ifdef UNIT_TEST
         return 0;
#endif 
    // coverity[unreachable]  //Suppressing false positives with code annotations
    message.setDelayedReply(true);
    if (!iReply)
	    iReply = new QDBusMessage;
    *iReply = message.createReply();
    return 0;
}

void UserAgent::requestConnect(const QDBusMessage &msg)
{
    QList<QVariant> arguments2;
    arguments2 << QVariant("Clear");
    requestMessage = msg.createReply(arguments2);

    QList<QVariant> arguments;
    arguments << QVariant(connectionRequestType());
    QDBusMessage error = msg.createReply(arguments);

    if (!QDBusConnection::systemBus().send(error)) {
        qWarning() << "Could not queue message";
    }

    if (connectionRequestType() == "Suppress") {
        return;
    }

    Q_EMIT connectionRequest();
    Q_EMIT userConnectRequested(msg);
    setConnectionRequestType("Suppress");
}

QDBusMessage qDBusPropertyGetAll(const QDBusConnectionPrivate::ObjectTreeNode &node,
                                 const QDBusMessage &msg)
{
    Q_ASSERT(msg.arguments().count() == 1);
    Q_ASSERT_X(!node.obj || QThread::currentThread() == node.obj->thread(),
               "QDBusConnection: internal threading error",
               "function called for an object that is in another thread!!");

    QString interface_name = msg.arguments().at(0).toString();

    bool interfaceFound = false;
    QVariantMap result;

    QDBusAdaptorConnector *connector;
    if (node.flags & QDBusConnection::ExportAdaptors &&
        (connector = qDBusFindAdaptorConnector(node.obj))) {

        if (interface_name.isEmpty()) {
            // iterate over all interfaces
            for (QDBusAdaptorConnector::AdaptorMap::ConstIterator it = connector->adaptors.constBegin(),
                 end = connector->adaptors.constEnd(); it != end; ++it) {
                result += readAllProperties(it->adaptor, QDBusConnection::ExportAllProperties);
            }
        } else {
            // find the class that implements interface_name
            QDBusAdaptorConnector::AdaptorMap::ConstIterator it;
            it = qLowerBound(connector->adaptors.constBegin(), connector->adaptors.constEnd(),
                             interface_name);
            if (it != connector->adaptors.constEnd() && interface_name == QLatin1String(it->interface)) {
                interfaceFound = true;
                result = readAllProperties(it->adaptor, QDBusConnection::ExportAllProperties);
            }
        }
    }

    if (node.flags & QDBusConnection::ExportAllProperties &&
        (!interfaceFound || interface_name.isEmpty())) {
        // try the object itself
        result += readAllProperties(node.obj, node.flags);
        interfaceFound = true;
    }

    if (!interfaceFound && !interface_name.isEmpty()) {
        // the interface was not found
        return interfaceNotFoundError(msg, interface_name);
    }

    return msg.createReply(QVariant::fromValue(result));
}

void QBluetoothPasskeyAgent_Private::Confirm(const QString &path,
                                             const QString &address,
                                             const QString &value,
                                             const QDBusMessage &msg)
{
    QString devname = path.mid(11);
    QBluetoothAddress addr(address);

    msg.setDelayedReply(true);

    QDBusMessage reply;
    if (m_parent->confirmPasskey(devname, addr, value)) {
        reply = msg.createReply();
    }
    else {
        reply = msg.createErrorReply("org.bluez.Error.Rejected", "Rejected");
    }

    QDBusConnection::systemBus().send(reply);
}

void AgentAdaptor::RequestInput(const QDBusObjectPath &service_path,
                                       const QVariantMap &fields,
                                       const QDBusMessage &message)
{
    QVariantMap json;
    Q_FOREACH (const QString &key, fields.keys()){
        QVariantMap payload = qdbus_cast<QVariantMap>(fields[key]);
        json.insert(key, payload);
    }

    message.setDelayedReply(true);

    ServiceRequestData *reqdata = new ServiceRequestData;
    reqdata->objectPath = service_path.path();
    reqdata->fields = json;
    reqdata->reply = message.createReply();
    reqdata->msg = message;

    m_userAgent->requestUserInput(reqdata);
}

static QDBusMessage propertyWriteReply(const QDBusMessage &msg, const QString &interface_name,
                                       const QByteArray &property_name, int status)
{
    switch (status) {
    case PropertyNotFound:
        return propertyNotFoundError(msg, interface_name, property_name);
    case PropertyTypeMismatch:
        return msg.createErrorReply(QDBusError::InvalidArgs,
                                    QString::fromLatin1("Invalid arguments for writing to property %1%2%3")
                                    .arg(interface_name,
                                         QString::fromLatin1(interface_name.isEmpty() ? "" : "."),
                                         QString::fromLatin1(property_name)));
    case PropertyWriteFailed:
        return msg.createErrorReply(QDBusError::InternalError,
                                    QString::fromLatin1("Internal error"));

    case PropertyWriteSuccess:
        return msg.createReply();
    }

    Q_UNREACHABLE();
}

void QBluetoothPasskeyAgent_Private::Request(const QString &path,
                                             const QString &address,
                                             const QDBusMessage &msg)
{
    QString devname = path.mid(11);
    QBluetoothAddress addr(address);

    QBluetoothPasskeyRequest req(devname, addr);

    m_parent->requestPasskey(req);

    msg.setDelayedReply(true);

    QDBusMessage reply;
    if (req.isRejected()) {
        reply = msg.createErrorReply("org.bluez.Error.Rejected", "Rejected");
    }
    else {
        reply = msg.createReply(req.passkey());
    }

    QDBusConnection::systemBus().send(reply);
}

QDBusMessage qDBusPropertyGet(const QDBusConnectionPrivate::ObjectTreeNode &node,
                              const QDBusMessage &msg)
{
    Q_ASSERT(msg.arguments().count() == 2);
    Q_ASSERT_X(!node.obj || QThread::currentThread() == node.obj->thread(),
               "QDBusConnection: internal threading error",
               "function called for an object that is in another thread!!");

    QString interface_name = msg.arguments().at(0).toString();
    QByteArray property_name = msg.arguments().at(1).toString().toUtf8();

    QDBusAdaptorConnector *connector;
    QVariant value;
    bool interfaceFound = false;
    if (node.flags & QDBusConnection::ExportAdaptors &&
        (connector = qDBusFindAdaptorConnector(node.obj))) {

        // find the class that implements interface_name or try until we've found the property
        // in case of an empty interface
        if (interface_name.isEmpty()) {
            for (QDBusAdaptorConnector::AdaptorMap::ConstIterator it = connector->adaptors.constBegin(),
                 end = connector->adaptors.constEnd(); it != end; ++it) {
                const QMetaObject *mo = it->adaptor->metaObject();
                int pidx = mo->indexOfProperty(property_name);
                if (pidx != -1) {
                    value = mo->property(pidx).read(it->adaptor);
                    break;
                }
            }
        } else {
            QDBusAdaptorConnector::AdaptorMap::ConstIterator it;
            it = qLowerBound(connector->adaptors.constBegin(), connector->adaptors.constEnd(),
                             interface_name);
            if (it != connector->adaptors.constEnd() && interface_name == QLatin1String(it->interface)) {
                interfaceFound = true;
                value = it->adaptor->property(property_name);
            }
        }
    }

    if (!interfaceFound && !value.isValid()
        && node.flags & (QDBusConnection::ExportAllProperties |
                         QDBusConnection::ExportNonScriptableProperties)) {
        // try the object itself
        if (!interface_name.isEmpty())
            interfaceFound = qDBusInterfaceInObject(node.obj, interface_name);

        if (interfaceFound) {
            int pidx = node.obj->metaObject()->indexOfProperty(property_name);
            if (pidx != -1) {
                QMetaProperty mp = node.obj->metaObject()->property(pidx);
                if ((mp.isScriptable() && (node.flags & QDBusConnection::ExportScriptableProperties)) ||
                    (!mp.isScriptable() && (node.flags & QDBusConnection::ExportNonScriptableProperties)))
                    value = mp.read(node.obj);
            }
        }
    }

    if (!value.isValid()) {
        // the property was not found
        if (!interfaceFound)
            return interfaceNotFoundError(msg, interface_name);
        return propertyNotFoundError(msg, interface_name, property_name);
    }

    return msg.createReply(QVariant::fromValue(QDBusVariant(value)));
}

bool DBusInterface::handleMessage(const QDBusMessage& message, const QDBusConnection& connection)
{
    /* Check to make sure we're getting properties on our interface */
    if (message.type() != QDBusMessage::MessageType::MethodCallMessage) {
        return false;
    }

    /* Break down the path to just the app id */
    bool validpath = true;
    QString pathtemp = message.path();
    if (!pathtemp.startsWith(QLatin1String("/com/canonical/Unity/Launcher/"))) {
        validpath = false;
    }
    pathtemp.remove(QStringLiteral("/com/canonical/Unity/Launcher/"));
    if (pathtemp.indexOf('/') >= 0) {
        validpath = false;
    }

    /* Find ourselves an appid */
    QString appid = decodeAppId(pathtemp);

    // First handle methods of the Launcher interface
    if (message.interface() == QLatin1String("com.canonical.Unity.Launcher")) {
        if (message.member() == QLatin1String("Refresh")) {
            QDBusMessage reply = message.createReply();
            Q_EMIT refreshCalled();
            return connection.send(reply);
        }
    } else if (message.interface() == QLatin1String("com.canonical.Unity.Launcher.Item")) {
        // Handle methods of the Launcher-Item interface
        if (message.member() == QLatin1String("Alert") && validpath) {
            QDBusMessage reply = message.createReply();
            Q_EMIT alertCalled(appid);
            return connection.send(reply);
        }
    }

    // Now handle dynamic properties (for launcher emblems)
    if (message.interface() != QLatin1String("org.freedesktop.DBus.Properties")) {
        return false;
    }

    if (message.member() == QLatin1String("Get") && (message.arguments().count() != 2 || message.arguments()[0].toString() != QLatin1String("com.canonical.Unity.Launcher.Item"))) {
        return false;
    }

    if (message.member() == QLatin1String("Set") && (message.arguments().count() != 3 || message.arguments()[0].toString() != QLatin1String("com.canonical.Unity.Launcher.Item"))) {
        return false;
    }

    if (!validpath) {
        return false;
    }

    int index = m_launcherModel->findApplication(appid);
    LauncherItem *item = static_cast<LauncherItem*>(m_launcherModel->get(index));

    QVariantList retval;
    if (message.member() == QLatin1String("Get")) {
        QString cachedString = message.arguments()[1].toString();
        if (!item) {
            return false;
        }
        if (cachedString == QLatin1String("count")) {
            retval.append(QVariant::fromValue(QDBusVariant(item->count())));
        } else if (cachedString == QLatin1String("countVisible")) {
            retval.append(QVariant::fromValue(QDBusVariant(item->countVisible())));
        } else if (cachedString == QLatin1String("progress")) {
            retval.append(QVariant::fromValue(QDBusVariant(item->progress())));
        }
    } else if (message.member() == QLatin1String("Set")) {
        QString cachedString = message.arguments()[1].toString();
        if (cachedString == QLatin1String("count")) {
            int newCount = message.arguments()[2].value<QDBusVariant>().variant().toInt();
            if (!item || newCount != item->count()) {
                Q_EMIT countChanged(appid, newCount);
                notifyPropertyChanged(QStringLiteral("com.canonical.Unity.Launcher.Item"), encodeAppId(appid), QStringLiteral("count"), QVariant(newCount));
            }
        } else if (cachedString == QLatin1String("countVisible")) {
            bool newVisible = message.arguments()[2].value<QDBusVariant>().variant().toBool();
            if (!item || newVisible != item->countVisible()) {
                Q_EMIT countVisibleChanged(appid, newVisible);
                notifyPropertyChanged(QStringLiteral("com.canonical.Unity.Launcher.Item"), encodeAppId(appid), QStringLiteral("countVisible"), newVisible);
            }
        } else if (cachedString == QLatin1String("progress")) {
            int newProgress = message.arguments()[2].value<QDBusVariant>().variant().toInt();
            if (!item || newProgress != item->progress()) {
                Q_EMIT progressChanged(appid, newProgress);
                notifyPropertyChanged(QStringLiteral("com.canonical.Unity.Launcher.Item"), encodeAppId(appid), QStringLiteral("progress"), QVariant(newProgress));
            }
        }
    } else if (message.member() == QLatin1String("GetAll")) {
        if (item) {
            QVariantMap all;
            all.insert(QStringLiteral("count"), item->count());
            all.insert(QStringLiteral("countVisible"), item->countVisible());
            all.insert(QStringLiteral("progress"), item->progress());
            retval.append(all);
        }
    } else {
//.........这里部分代码省略.........