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+/* -*- mode: C++ -*-
+ *
+ * Copyright (C) 2006 Trolltech AS. All rights reserved.
+ * Author: Thiago Macieira <thiago.macieira@trolltech.com>
+ *
+ * Licensed under the Academic Free License version 2.1
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "qdbusconnection_p.h"
+
+#include <dbus/dbus.h>
+#include <QtCore/qcoreapplication.h>
+#include <QtCore/qmetaobject.h>
+#include <QtCore/qstringlist.h>
+
+#include "qdbusabstractadaptor.h"
+#include "qdbusabstractadaptor_p.h"
+#include "qdbusconnection.h"
+#include "qdbusmessage.h"
+#include "qdbustypehelper_p.h"
+#include "qdbusutil.h"
+
+// 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"
+ " </interface>\n";
+
+static QString generateSubObjectXml(QObject *object)
+{
+ QString retval;
+ foreach (QObject *child, object->children()) {
+ QString name = child->objectName();
+ if (!name.isEmpty())
+ retval += QString(QLatin1String(" <node name=\"%1\"/>\n"))
+ .arg(name);
+ }
+ return retval;
+}
+
+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) {
+ if (node->flags & QDBusConnection::ExportContents) {
+ 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(it->interface, it->metaObject,
+ &QDBusAbstractAdaptor::staticMetaObject,
+ QDBusConnection::ExportAllContents);
+
+ QDBusAbstractAdaptorPrivate::saveIntrospectionXml(it->adaptor, ifaceXml);
+ }
+
+ xml_data += ifaceXml;
+ }
+ }
+
+ xml_data += QLatin1String( introspectableInterfaceXml );
+ xml_data += QLatin1String( propertiesInterfaceXml );
+ }
+
+ if (node->flags & QDBusConnection::ExportChildObjects) {
+ xml_data += generateSubObjectXml(node->obj);
+ } else {
+ // generate from the object tree
+ foreach (const QDBusConnectionPrivate::ObjectTreeNode::Data &entry, node->children) {
+ if (entry.node && (entry.node->obj || !entry.node->children.isEmpty()))
+ xml_data += QString(QLatin1String(" <node name=\"%1\"/>\n"))
+ .arg(entry.name);
+ }
+ }
+
+ xml_data += QLatin1String("</node>\n");
+ return xml_data;
+}
+
+void qDBusIntrospectObject(const QDBusConnectionPrivate::ObjectTreeNode *node,
+ const QDBusMessage &msg)
+{
+ // now send it
+ QDBusMessage reply = QDBusMessage::methodReply(msg);
+ reply << qDBusIntrospectObject(node);
+ msg.connection().send(reply);
+}
+
+// implement the D-Bus interface org.freedesktop.DBus.Properties
+
+static void sendPropertyError(const QDBusMessage &msg, const QString &interface_name)
+{
+ QDBusMessage error = QDBusMessage::error(msg, QLatin1String(DBUS_ERROR_INVALID_ARGS),
+ QString::fromLatin1("Interface %1 was not found in object %2")
+ .arg(interface_name)
+ .arg(msg.path()));
+ msg.connection().send(error);
+}
+
+void qDBusPropertyGet(const QDBusConnectionPrivate::ObjectTreeNode *node, const QDBusMessage &msg)
+{
+ Q_ASSERT(msg.count() == 2);
+ QString interface_name = msg.at(0).toString();
+ QByteArray property_name = msg.at(1).toString().toUtf8();
+
+ QDBusAdaptorConnector *connector;
+ QVariant value;
+ if (node->flags & QDBusConnection::ExportAdaptors &&
+ (connector = qDBusFindAdaptorConnector(node->obj))) {
+
+ // 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.end() && it->interface == interface_name)
+ value = it->adaptor->property(property_name);
+ }
+
+ if (!value.isValid() && node->flags & QDBusConnection::ExportProperties) {
+ // try the object itself
+ int pidx = node->obj->metaObject()->indexOfProperty(property_name);
+ if (pidx != -1) {
+ QMetaProperty mp = node->obj->metaObject()->property(pidx);
+ if (mp.isScriptable() || (node->flags & QDBusConnection::ExportAllProperties) ==
+ QDBusConnection::ExportAllProperties)
+ value = mp.read(node->obj);
+ }
+ }
+
+ if (!value.isValid()) {
+ // the property was not found
+ sendPropertyError(msg, interface_name);
+ return;
+ }
+
+ QDBusMessage reply = QDBusMessage::methodReply(msg);
+ reply.setSignature(QLatin1String("v"));
+ reply << value;
+ msg.connection().send(reply);
+}
+
+void qDBusPropertySet(const QDBusConnectionPrivate::ObjectTreeNode *node, const QDBusMessage &msg)
+{
+ Q_ASSERT(msg.count() == 3);
+ QString interface_name = msg.at(0).toString();
+ QByteArray property_name = msg.at(1).toString().toUtf8();
+ QVariant value = QDBusTypeHelper<QVariant>::fromVariant(msg.at(2));
+
+ QDBusAdaptorConnector *connector;
+ if (node->flags & QDBusConnection::ExportAdaptors &&
+ (connector = qDBusFindAdaptorConnector(node->obj))) {
+
+ // 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.end() && it->interface == interface_name)
+ if (it->adaptor->setProperty(property_name, value)) {
+ msg.connection().send(QDBusMessage::methodReply(msg));
+ return;
+ }
+ }
+
+ if (node->flags & QDBusConnection::ExportProperties) {
+ // try the object itself
+ int pidx = node->obj->metaObject()->indexOfProperty(property_name);
+ if (pidx != -1) {
+ QMetaProperty mp = node->obj->metaObject()->property(pidx);
+ if (mp.isScriptable() || (node->flags & QDBusConnection::ExportAllProperties) ==
+ QDBusConnection::ExportAllProperties) {
+
+ if (mp.write(node->obj, value)) {
+ msg.connection().send(QDBusMessage::methodReply(msg));
+ return;
+ }
+ }
+ }
+ }
+
+ // the property was not found or not written to
+ sendPropertyError(msg, interface_name);
+}
generated by cgit (git 2.34.1) at 2024-05-29 01:04:41 +0000