1 files changed, 110 insertions, 0 deletions
diff --git a/examples/PkExampleHelper.cpp b/examples/PkExampleHelper.cpp
new file mode 100644
index 000000000..0258e700f
--- /dev/null
+++ b/examples/PkExampleHelper.cpp
@@ -0,0 +1,110 @@
+// This is an example not a library
+/***************************************************************************
+ *   Copyright (C) 2008 Daniel Nicoletti <[email protected]>        *
+ *   Copyright (C) 2009 Radek Novacek    <[email protected]>             *
+ *                                                                         *
+ *   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 "PkExampleHelper.h"
+#include "examplesadaptor.h"
+
+#include "polkitqt1-authority.h"
+
+#include <QtDBus/QDBusConnection>
+#include <QtCore/QTimer>
+#include <QtCore/QDebug>
+#include <QtXml/QDomDocument>
+
+#define MINUTE 60000
+
+using namespace PolkitQt1;
+
+PkExampleHelper::PkExampleHelper(int &argc, char **argv)
+        : QCoreApplication(argc, argv)
+{
+    qDebug() << "Creating Helper";
+    (void) new ExamplesAdaptor(this);
+    // Register the DBus service
+    if (!QDBusConnection::systemBus().registerService("org.qt.policykit.examples")) {
+        qDebug() << QDBusConnection::systemBus().lastError().message();;
+        QTimer::singleShot(0, this, SLOT(quit()));
+        return;
+    }
+
+    if (!QDBusConnection::systemBus().registerObject("/", this)) {
+        qDebug() << "unable to register service interface to dbus";
+        QTimer::singleShot(0, this, SLOT(quit()));
+        return;
+    }
+    // Normally you will set a timeout so your application can
+    // free some resources of the poor client machine ;)
+    QTimer::singleShot(MINUTE, this, SLOT(quit()));
+}
+
+PkExampleHelper::~PkExampleHelper()
+{
+    qDebug() << "Destroying Helper";
+}
+
+bool PkExampleHelper::set(const QString &action)
+{
+    qDebug() << "PkExampleHelper::set" << action;
+    // message().service() is the service name of the caller
+    // We can check if the caller is authorized to the following action
+    Authority::Result result;
+    SystemBusNameSubject subject(message().service());
+
+    result = Authority::instance()->checkAuthorizationSync("org.qt.policykit.examples.set",
+             subject , Authority::AllowUserInteraction);
+    if (result == Authority::Yes) {
+        qDebug() << message().service() << QString("Implicit authorization set to") << action;
+        // Caller is authorized so we can perform the action
+        return setValue(action);
+    } else {
+        qDebug() << message().service() << QString("Can't set the implicit authorization");
+        // Caller is not authorized so the action can't be performed
+        return false;
+    }
+}
+
+bool PkExampleHelper::setValue(const QString &action)
+{
+    // This action must be authorized first. It will set the implicit
+    // authorization for the Shout action by editing the .policy file
+    QDomDocument doc = QDomDocument("policy");
+    QFile file("/usr/share/polkit-1/actions/org.qt.policykit.examples.policy");
+    if (!file.open(QIODevice::ReadOnly))
+        return false;
+    doc.setContent(&file);
+    file.close();
+    QDomElement el = doc.firstChildElement("policyconfig").
+                     firstChildElement("action");
+    while (!el.isNull() && el.attribute("id", QString()) != "org.qt.policykit.examples.shout") {
+        el = el.nextSiblingElement("action");
+    }
+    el = el.firstChildElement("defaults");
+    el = el.firstChildElement("allow_active");
+    if (el.isNull())
+        return false;
+    el.firstChild().toText().setData(action);
+    if (!file.open(QIODevice::WriteOnly))
+        return false;
+    QTextStream stream(&file);
+    doc.save(stream, 2);
+    file.close();
+    return true;
+}