git.iko.soy/unity8
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unity8/plugins/AccountsService/AccountsServiceDBusAdaptor.cpp
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1/*
2 * Copyright (C) 2013-2016 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 */
17#include "AccountsServiceDBusAdaptor.h"
18#include <QDBusConnection>
19#include <QDBusConnectionInterface>
20#include <QDBusMessage>
21#include <QDBusVariant>
22#include <QDebug>
24AccountsServiceDBusAdaptor::AccountsServiceDBusAdaptor(QObject* parent)
25 : QObject(parent),
26 m_accountsManager(nullptr),
27 m_ignoreNextChanged(false)
29 QDBusConnection connection = QDBusConnection::SM_BUSNAME();
30 QDBusConnectionInterface *interface = connection.interface();
31 interface->startService(QStringLiteral("org.freedesktop.Accounts"));
32 m_accountsManager = new QDBusInterface(QStringLiteral("org.freedesktop.Accounts"),
33 QStringLiteral("/org/freedesktop/Accounts"),
34 QStringLiteral("org.freedesktop.Accounts"),
35 connection, this);
38QDBusPendingReply<QVariantMap> AccountsServiceDBusAdaptor::getAllPropertiesAsync(const QString &user, const QString &interface)
40 QDBusInterface *iface = getUserInterface(user);
41 if (iface != nullptr && iface->isValid()) {
42 return iface->asyncCall(QStringLiteral("GetAll"), interface);
43 }
44 return QDBusPendingReply<QVariantMap>(QDBusMessage::createError(QDBusError::Other, QStringLiteral("Invalid Interface")));
47QDBusPendingReply<QVariant> AccountsServiceDBusAdaptor::getUserPropertyAsync(const QString &user, const QString &interface, const QString &property)
49 QDBusInterface *iface = getUserInterface(user);
50 if (iface != nullptr && iface->isValid()) {
51 return iface->asyncCall(QStringLiteral("Get"), interface, property);
52 }
53 return QDBusPendingReply<QVariant>(QDBusMessage::createError(QDBusError::Other, QStringLiteral("Invalid Interface")));
56QDBusPendingCall AccountsServiceDBusAdaptor::setUserPropertyAsync(const QString &user, const QString &interface, const QString &property, const QVariant &value)
58 QDBusInterface *iface = getUserInterface(user);
59 if (iface != nullptr && iface->isValid()) {
60 if (interface == QStringLiteral("org.freedesktop.Accounts.User")) {
61 // Standard AccountsService properties use special set methods.
62 // It will not let you use the usual DBus property setters.
63 QDBusInterface accountsIface(iface->service(),
64 iface->path(),
65 interface,
66 iface->connection());
67 return accountsIface.asyncCall(QStringLiteral("Set") + property, value);
68 } else {
69 // The value needs to be carefully wrapped
70 return iface->asyncCall(QStringLiteral("Set"), interface, property, QVariant::fromValue(QDBusVariant(value)));
71 }
72 }
73 return QDBusPendingCall::fromCompletedCall(QDBusMessage::createError(QDBusError::Other, QStringLiteral("Invalid Interface")));
76void AccountsServiceDBusAdaptor::propertiesChangedSlot(const QString &interface, const QVariantMap &changed, const QStringList &invalid)
78 // Merge changed and invalidated together
79 QStringList combined;
80 combined << invalid;
81 combined << changed.keys();
82 combined.removeDuplicates();
84 Q_EMIT propertiesChanged(getUserForPath(message().path()), interface, combined);
86 // In case a non-builtin property changes, we're getting propertiesChanged *and* changed
87 // As the generic changed requires asking back over DBus, it's quite slow to process.
88 // We don't want to trigger that when we know it's not a built-in property change.
89 m_ignoreNextChanged = true;
92void AccountsServiceDBusAdaptor::maybeChangedSlot()
94 if (!m_ignoreNextChanged) {
95 Q_EMIT maybeChanged(getUserForPath(message().path()));
96 }
97 m_ignoreNextChanged = false;
100QString AccountsServiceDBusAdaptor::getUserForPath(const QString &path) const
102 QMap<QString, QDBusInterface *>::const_iterator i;
103 for (i = m_users.constBegin(); i != m_users.constEnd(); ++i) {
104 if (i.value()->path() == path) {
105 return i.key();
106 }
107 }
108 return QString();
111QDBusInterface *AccountsServiceDBusAdaptor::getUserInterface(const QString &user)
113 QDBusInterface *iface = m_users.value(user);
114 if (iface == nullptr && m_accountsManager->isValid()) {
115 QDBusReply<QDBusObjectPath> answer = m_accountsManager->call(QStringLiteral("FindUserByName"), user);
116 if (answer.isValid()) {
117 const QString path = answer.value().path();
119 iface = new QDBusInterface(QStringLiteral("org.freedesktop.Accounts"),
120 path,
121 QStringLiteral("org.freedesktop.DBus.Properties"),
122 m_accountsManager->connection(), this);
124 // With its own pre-defined properties, AccountsService is oddly
125 // close-lipped. It won't send out proper DBus.Properties notices,
126 // but it does have one catch-all Changed() signal. So let's
127 // listen to that.
128 iface->connection().connect(
129 iface->service(),
130 path,
131 QStringLiteral("org.freedesktop.Accounts.User"),
132 QStringLiteral("Changed"),
133 this,
134 SLOT(maybeChangedSlot()));
136 // But custom properties do send out the right notifications, so
137 // let's still listen there.
138 iface->connection().connect(
139 iface->service(),
140 path,
141 QStringLiteral("org.freedesktop.DBus.Properties"),
142 QStringLiteral("PropertiesChanged"),
143 this,
144 SLOT(propertiesChangedSlot(QString, QVariantMap, QStringList)));
146 m_users.insert(user, iface);
147 } else {
148 qWarning() << "Couldn't get user interface" << answer.error().name() << answer.error().message();
149 }
150 }
151 return iface;