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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.constEnd() && 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);
}
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