git.iko.soy/unity8
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unity8/plugins/AccountsService/AccountsServiceDBusAdaptor.cpp
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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 "AccountsServiceDBusAdaptor.h"
20#include <QDBusConnection>
21#include <QDBusConnectionInterface>
22#include <QDBusMessage>
23#include <QDBusVariant>
24#include <QDebug>
26AccountsServiceDBusAdaptor::AccountsServiceDBusAdaptor(QObject* parent)
27 : QObject(parent),
28 m_accountsManager(nullptr),
29 m_ignoreNextChanged(false)
31 QDBusConnection connection = QDBusConnection::SM_BUSNAME();
32 QDBusConnectionInterface *interface = connection.interface();
33 interface->startService(QStringLiteral("org.freedesktop.Accounts"));
34 m_accountsManager = new QDBusInterface(QStringLiteral("org.freedesktop.Accounts"),
35 QStringLiteral("/org/freedesktop/Accounts"),
36 QStringLiteral("org.freedesktop.Accounts"),
37 connection, this);
40QDBusPendingReply<QVariant> AccountsServiceDBusAdaptor::getUserPropertyAsync(const QString &user, const QString &interface, const QString &property)
42 QDBusInterface *iface = getUserInterface(user);
43 if (iface != nullptr && iface->isValid()) {
44 return iface->asyncCall(QStringLiteral("Get"), interface, property);
45 }
46 return QDBusPendingReply<QVariant>(QDBusMessage::createError(QDBusError::Other, QStringLiteral("Invalid Interface")));
49QDBusPendingCall AccountsServiceDBusAdaptor::setUserPropertyAsync(const QString &user, const QString &interface, const QString &property, const QVariant &value)
51 QDBusInterface *iface = getUserInterface(user);
52 if (iface != nullptr && iface->isValid()) {
53 // The value needs to be carefully wrapped
54 return iface->asyncCall(QStringLiteral("Set"), interface, property, QVariant::fromValue(QDBusVariant(value)));
55 }
56 return QDBusPendingCall::fromCompletedCall(QDBusMessage::createError(QDBusError::Other, QStringLiteral("Invalid Interface")));
59void AccountsServiceDBusAdaptor::propertiesChangedSlot(const QString &interface, const QVariantMap &changed, const QStringList &invalid)
61 // Merge changed and invalidated together
62 QStringList combined;
63 combined << invalid;
64 combined << changed.keys();
65 combined.removeDuplicates();
67 Q_EMIT propertiesChanged(getUserForPath(message().path()), interface, combined);
69 // In case a non-builtin property changes, we're getting propertiesChanged *and* changed
70 // As the generic changed requires asking back over DBus, it's quite slow to process.
71 // We don't want to trigger that when we know it's not a built-in property change.
72 m_ignoreNextChanged = true;
75void AccountsServiceDBusAdaptor::maybeChangedSlot()
77 if (!m_ignoreNextChanged) {
78 Q_EMIT maybeChanged(getUserForPath(message().path()));
79 }
80 m_ignoreNextChanged = false;
83QString AccountsServiceDBusAdaptor::getUserForPath(const QString &path)
85 QMap<QString, QDBusInterface *>::const_iterator i;
86 for (i = m_users.constBegin(); i != m_users.constEnd(); ++i) {
87 if (i.value()->path() == path) {
88 return i.key();
89 }
90 }
91 return QString();
94QDBusInterface *AccountsServiceDBusAdaptor::getUserInterface(const QString &user)
96 QDBusInterface *iface = m_users.value(user);
97 if (iface == nullptr && m_accountsManager->isValid()) {
98 QDBusReply<QDBusObjectPath> answer = m_accountsManager->call(QStringLiteral("FindUserByName"), user);
99 if (answer.isValid()) {
100 const QString path = answer.value().path();
102 iface = new QDBusInterface(QStringLiteral("org.freedesktop.Accounts"),
103 path,
104 QStringLiteral("org.freedesktop.DBus.Properties"),
105 m_accountsManager->connection(), this);
107 // With its own pre-defined properties, AccountsService is oddly
108 // close-lipped. It won't send out proper DBus.Properties notices,
109 // but it does have one catch-all Changed() signal. So let's
110 // listen to that.
111 iface->connection().connect(
112 iface->service(),
113 path,
114 QStringLiteral("org.freedesktop.Accounts.User"),
115 QStringLiteral("Changed"),
116 this,
117 SLOT(maybeChangedSlot()));
119 // But custom properties do send out the right notifications, so
120 // let's still listen there.
121 iface->connection().connect(
122 iface->service(),
123 path,
124 QStringLiteral("org.freedesktop.DBus.Properties"),
125 QStringLiteral("PropertiesChanged"),
126 this,
127 SLOT(propertiesChangedSlot(QString, QVariantMap, QStringList)));
129 m_users.insert(user, iface);
130 } else {
131 qWarning() << "Couldn't get user interface" << answer.error().name() << answer.error().message();
132 }
133 }
134 return iface;