git.iko.soy/unity8
on a2a6340 help sign in
unity8/plugins/SessionBroadcast/SessionBroadcast.cpp
70 lines 2.9 kB history raw
1/*
2 * Copyright (C) 2013 Canonical, Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 3.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 *
16 * Author: Michael Terry <michael.terry@canonical.com>
17 */
19#include "SessionBroadcast.h"
20#include <QDBusConnection>
21#include <QDBusConnectionInterface>
22#include <QDBusInterface>
23#include <QFileInfo>
25SessionBroadcast::SessionBroadcast(QObject* parent)
26 : QObject(parent),
27 broadcaster(NULL)
29 auto connection = QDBusConnection::SM_BUSNAME();
30 auto interface = connection.interface();
31 interface->startService("com.canonical.Unity.Greeter.Broadcast");
32 broadcaster = new QDBusInterface("com.canonical.Unity.Greeter.Broadcast",
33 "/com/canonical/Unity/Greeter/Broadcast",
34 "com.canonical.Unity.Greeter.Broadcast",
35 connection, this);
37 connection.connect("com.canonical.Unity.Greeter.Broadcast",
38 "/com/canonical/Unity/Greeter/Broadcast",
39 "com.canonical.Unity.Greeter.Broadcast",
40 "StartApplication",
41 this,
42 SLOT(onStartApplication(const QString &, const QString &)));
45void SessionBroadcast::requestApplicationStart(const QString &username, const QString &appId)
47 // unity-greeter-session-broadcast deals in short appIds. That is,
48 // desktop file names without the ".desktop". It doesn't really allow
49 // for arbitrary-path desktop files, for security reasons (hard to
50 // contain with apparmor and such). So we need to mangle the names a bit.
51 // If incoming appId is random path like /hello/foobar.desktop, then just
52 // do our best and ask for foobar.
53 QString desktopSuffix = ".desktop";
54 QString mangled = appId;
55 if (mangled.endsWith(desktopSuffix))
56 mangled.chop(desktopSuffix.size());
57 mangled = QFileInfo(mangled).fileName(); // chop off path
59 broadcaster->asyncCall("RequestApplicationStart", username, mangled);
62void SessionBroadcast::onStartApplication(const QString &username, const QString &appId)
64 // Since this signal is just used for testing, we don't *really* care if
65 // username matches, but just in case we do eventually use the signal, we
66 // should only listen to our own requests.
67 if (username == qgetenv("USER")) {
68 Q_EMIT startApplication(appId);
69 }