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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 503 insertions, 0 deletions

diff --git a/src/dbus/qdbusinternalfilters.cpp b/src/dbus/qdbusinternalfilters.cpp
new file mode 100644
index 0000000000..357fa2b675
--- /dev/null
+++ b/src/dbus/qdbusinternalfilters.cpp
@@ -0,0 +1,503 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDBus module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdbusconnection_p.h"
+
+#include "qdbus_symbols_p.h"
+#include <QtCore/qcoreapplication.h>
+#include <QtCore/qmetaobject.h>
+#include <QtCore/qstringlist.h>
+#include <QtCore/qthread.h>
+
+#include "qdbusabstractadaptor.h"
+#include "qdbusabstractadaptor_p.h"
+#include "qdbusconnection.h"
+#include "qdbusextratypes.h"
+#include "qdbusmessage.h"
+#include "qdbusmetatype.h"
+#include "qdbusmetatype_p.h"
+#include "qdbusmessage_p.h"
+#include "qdbusutil_p.h"
+
+#ifndef QT_NO_DBUS
+
+QT_BEGIN_NAMESPACE
+
+// defined in qdbusxmlgenerator.cpp
+extern QString qDBusGenerateMetaObjectXml(QString interface, const QMetaObject *mo,
+                                          const QMetaObject *base, int flags);
+
+static const char introspectableInterfaceXml[] =
+    "  <interface name=\"org.freedesktop.DBus.Introspectable\">\n"
+    "    <method name=\"Introspect\">\n"
+    "      <arg name=\"xml_data\" type=\"s\" direction=\"out\"/>\n"
+    "    </method>\n"
+    "  </interface>\n";
+
+static const char propertiesInterfaceXml[] =
+    "  <interface name=\"org.freedesktop.DBus.Properties\">\n"
+    "    <method name=\"Get\">\n"
+    "      <arg name=\"interface_name\" type=\"s\" direction=\"in\"/>\n"
+    "      <arg name=\"property_name\" type=\"s\" direction=\"in\"/>\n"
+    "      <arg name=\"value\" type=\"v\" direction=\"out\"/>\n"
+    "    </method>\n"
+    "    <method name=\"Set\">\n"
+    "      <arg name=\"interface_name\" type=\"s\" direction=\"in\"/>\n"
+    "      <arg name=\"property_name\" type=\"s\" direction=\"in\"/>\n"
+    "      <arg name=\"value\" type=\"v\" direction=\"in\"/>\n"
+    "    </method>\n"
+    "    <method name=\"GetAll\">\n"
+    "      <arg name=\"interface_name\" type=\"s\" direction=\"in\"/>\n"
+    "      <arg name=\"values\" type=\"a{sv}\" direction=\"out\"/>\n"
+    "      <annotation name=\"com.trolltech.QtDBus.QtTypeName.Out0\" value=\"QVariantMap\"/>\n"
+    "    </method>\n"
+    "  </interface>\n";
+
+static QString generateSubObjectXml(QObject *object)
+{
+    QString retval;
+    const QObjectList &objs = object->children();
+    QObjectList::ConstIterator it = objs.constBegin();
+    QObjectList::ConstIterator end = objs.constEnd();
+    for ( ; it != end; ++it) {
+        QString name = (*it)->objectName();
+        if (!name.isEmpty() && QDBusUtil::isValidPartOfObjectPath(name))
+            retval += QString::fromLatin1("  <node name=\"%1\"/>\n")
+                      .arg(name);
+    }
+    return retval;
+}
+
+// declared as extern in qdbusconnection_p.h
+
+QString qDBusIntrospectObject(const QDBusConnectionPrivate::ObjectTreeNode &node)
+{
+    // object may be null
+
+    QString xml_data(QLatin1String(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE));
+    xml_data += QLatin1String("<node>\n");
+
+    if (node.obj) {
+        Q_ASSERT_X(QThread::currentThread() == node.obj->thread(),
+                   "QDBusConnection: internal threading error",
+                   "function called for an object that is in another thread!!");
+
+        if (node.flags & (QDBusConnection::ExportScriptableContents
+                           | QDBusConnection::ExportNonScriptableContents)) {
+            // create XML for the object itself
+            const QMetaObject *mo = node.obj->metaObject();
+            for ( ; mo != &QObject::staticMetaObject; mo = mo->superClass())
+                xml_data += qDBusGenerateMetaObjectXml(QString(), mo, mo->superClass(),
+                                                       node.flags);
+        }
+
+        // does this object have adaptors?
+        QDBusAdaptorConnector *connector;
+        if (node.flags & QDBusConnection::ExportAdaptors &&
+            (connector = qDBusFindAdaptorConnector(node.obj))) {
+
+            // trasverse every adaptor in this object
+            QDBusAdaptorConnector::AdaptorMap::ConstIterator it = connector->adaptors.constBegin();
+            QDBusAdaptorConnector::AdaptorMap::ConstIterator end = connector->adaptors.constEnd();
+            for ( ; it != end; ++it) {
+                // add the interface:
+                QString ifaceXml = QDBusAbstractAdaptorPrivate::retrieveIntrospectionXml(it->adaptor);
+                if (ifaceXml.isEmpty()) {
+                    // add the interface's contents:
+                    ifaceXml += qDBusGenerateMetaObjectXml(QString::fromLatin1(it->interface),
+                                                           it->adaptor->metaObject(),
+                                                           &QDBusAbstractAdaptor::staticMetaObject,
+                                                           QDBusConnection::ExportScriptableContents
+                                                           | QDBusConnection::ExportNonScriptableContents);
+
+                    QDBusAbstractAdaptorPrivate::saveIntrospectionXml(it->adaptor, ifaceXml);
+                }
+
+                xml_data += ifaceXml;
+            }
+        }
+
+        xml_data += QLatin1String( propertiesInterfaceXml );
+    }
+
+    xml_data += QLatin1String( introspectableInterfaceXml );
+
+    if (node.flags & QDBusConnection::ExportChildObjects) {
+        xml_data += generateSubObjectXml(node.obj);
+    } else {
+        // generate from the object tree
+        QDBusConnectionPrivate::ObjectTreeNode::DataList::ConstIterator it =
+            node.children.constBegin();
+        QDBusConnectionPrivate::ObjectTreeNode::DataList::ConstIterator end =
+            node.children.constEnd();
+        for ( ; it != end; ++it)
+            if (it->obj || !it->children.isEmpty())
+                xml_data += QString::fromLatin1("  <node name=\"%1\"/>\n")
+                            .arg(it->name);
+    }
+
+    xml_data += QLatin1String("</node>\n");
+    return xml_data;
+}
+
+// implement the D-Bus interface org.freedesktop.DBus.Properties
+
+static inline QDBusMessage interfaceNotFoundError(const QDBusMessage &msg, const QString &interface_name)
+{
+    return msg.createErrorReply(QDBusError::UnknownInterface,
+                                QString::fromLatin1("Interface %1 was not found in object %2")
+                                .arg(interface_name)
+                                .arg(msg.path()));
+}
+
+static inline QDBusMessage
+propertyNotFoundError(const QDBusMessage &msg, const QString &interface_name, const QByteArray &property_name)
+{
+    return msg.createErrorReply(QDBusError::InvalidArgs,
+                                QString::fromLatin1("Property %1%2%3 was not found in object %4")
+                                .arg(interface_name,
+                                     QString::fromLatin1(interface_name.isEmpty() ? "" : "."),
+                                     QString::fromLatin1(property_name),
+                                     msg.path()));
+}
+
+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)));
+}
+
+enum PropertyWriteResult {
+    PropertyWriteSuccess = 0,
+    PropertyNotFound,
+    PropertyTypeMismatch,
+    PropertyWriteFailed
+};
+
+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_ASSERT_X(false, "", "Should not be reached");
+    return QDBusMessage();
+}
+
+static int writeProperty(QObject *obj, const QByteArray &property_name, QVariant value,
+                         int propFlags = QDBusConnection::ExportAllProperties)
+{
+    const QMetaObject *mo = obj->metaObject();
+    int pidx = mo->indexOfProperty(property_name);
+    if (pidx == -1) {
+        // this object has no property by that name
+        return PropertyNotFound;
+    }
+
+    QMetaProperty mp = mo->property(pidx);
+
+    // check if this property is exported
+    bool isScriptable = mp.isScriptable();
+    if (!(propFlags & QDBusConnection::ExportScriptableProperties) && isScriptable)
+        return PropertyNotFound;
+    if (!(propFlags & QDBusConnection::ExportNonScriptableProperties) && !isScriptable)
+        return PropertyNotFound;
+
+    // we found our property
+    // do we have the right type?
+    int id = mp.type();
+    if (id == QVariant::UserType) {
+        // dynamic type
+        id = qDBusNameToTypeId(mp.typeName());
+        if (id == -1) {
+            // type not registered?
+            qWarning("QDBusConnection: Unable to handle unregistered datatype '%s' for property '%s::%s'",
+                     mp.typeName(), mo->className(), property_name.constData());
+            return PropertyWriteFailed;
+        }
+    }
+
+    if (id != 0xff && value.userType() == QDBusMetaTypeId::argument) {
+        // we have to demarshall before writing
+        void *null = 0;
+        QVariant other(id, null);
+        if (!QDBusMetaType::demarshall(qvariant_cast<QDBusArgument>(value), id, other.data())) {
+            qWarning("QDBusConnection: type `%s' (%d) is not registered with QtDBus. "
+                     "Use qDBusRegisterMetaType to register it",
+                     mp.typeName(), id);
+            return PropertyWriteFailed;
+        }
+
+        value = other;
+    }
+
+    // the property type here should match
+    return mp.write(obj, value) ? PropertyWriteSuccess : PropertyWriteFailed;
+}
+
+QDBusMessage qDBusPropertySet(const QDBusConnectionPrivate::ObjectTreeNode &node,
+                              const QDBusMessage &msg)
+{
+    Q_ASSERT(msg.arguments().count() == 3);
+    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();
+    QVariant value = qvariant_cast<QDBusVariant>(msg.arguments().at(2)).variant();
+
+    QDBusAdaptorConnector *connector;
+    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) {
+                int status = writeProperty(it->adaptor, property_name, value);
+                if (status == PropertyNotFound)
+                    continue;
+                return propertyWriteReply(msg, interface_name, property_name, status);
+            }
+        } else {
+            QDBusAdaptorConnector::AdaptorMap::ConstIterator it;
+            it = qLowerBound(connector->adaptors.constBegin(), connector->adaptors.constEnd(),
+                             interface_name);
+            if (it != connector->adaptors.end() && interface_name == QLatin1String(it->interface)) {
+                return propertyWriteReply(msg, interface_name, property_name,
+                                          writeProperty(it->adaptor, property_name, value));
+            }
+        }
+    }
+
+    if (node.flags & (QDBusConnection::ExportScriptableProperties |
+                      QDBusConnection::ExportNonScriptableProperties)) {
+        // try the object itself
+        bool interfaceFound = true;
+        if (!interface_name.isEmpty())
+            interfaceFound = qDBusInterfaceInObject(node.obj, interface_name);
+
+        if (interfaceFound) {
+            return propertyWriteReply(msg, interface_name, property_name,
+                                      writeProperty(node.obj, property_name, value, node.flags));
+        }
+    }
+
+    // the property was not found
+    if (!interface_name.isEmpty())
+        return interfaceNotFoundError(msg, interface_name);
+    return propertyWriteReply(msg, interface_name, property_name, PropertyNotFound);
+}
+
+// unite two QVariantMaps, but don't generate duplicate keys
+static QVariantMap &operator+=(QVariantMap &lhs, const QVariantMap &rhs)
+{
+    QVariantMap::ConstIterator it = rhs.constBegin(),
+                              end = rhs.constEnd();
+    for ( ; it != end; ++it)
+        lhs.insert(it.key(), it.value());
+    return lhs;
+}
+
+static QVariantMap readAllProperties(QObject *object, int flags)
+{
+    QVariantMap result;
+    const QMetaObject *mo = object->metaObject();
+
+    // QObject has properties, so don't start from 0
+    for (int i = QObject::staticMetaObject.propertyCount(); i < mo->propertyCount(); ++i) {
+        QMetaProperty mp = mo->property(i);
+
+        // is it readable?
+        if (!mp.isReadable())
+            continue;
+
+        // is it a registered property?
+        int typeId = qDBusNameToTypeId(mp.typeName());
+        if (!typeId)
+            continue;
+        const char *signature = QDBusMetaType::typeToSignature(typeId);
+        if (!signature)
+            continue;
+
+        // is this property visible from the outside?
+        if ((mp.isScriptable() && flags & QDBusConnection::ExportScriptableProperties) ||
+            (!mp.isScriptable() && flags & QDBusConnection::ExportNonScriptableProperties)) {
+            // yes, it's visible
+            QVariant value = mp.read(object);
+            if (value.isValid())
+                result.insert(QString::fromLatin1(mp.name()), value);
+        }
+    }
+
+    return result;
+}
+
+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));
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_DBUS