summaryrefslogtreecommitdiff
path: root/src/dbus/qdbusserver.cpp
blob: eccffc3d3e32d30942bdc885553e4e75de71fc99 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Copyright (C) 2016 Intel Corporation.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtDBus module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qdbusserver.h"
#include "qdbusconnection_p.h"
#include "qdbusconnectionmanager_p.h"
#include "qdbusutil_p.h"

#include <QtCore/private/qlocking_p.h>

#ifndef QT_NO_DBUS

QT_BEGIN_NAMESPACE

/*!
    \class QDBusServer
    \inmodule QtDBus

    \brief The QDBusServer class provides peer-to-peer communication
    between processes on the same computer.
*/

/*!
    Constructs a QDBusServer with the given \a address, and the given
    \a parent.
*/
QDBusServer::QDBusServer(const QString &address, QObject *parent)
    : QObject(parent), d(nullptr)
{
    if (address.isEmpty())
        return;

    if (!qdbus_loadLibDBus())
        return;

    QDBusConnectionManager *instance = QDBusConnectionManager::instance();
    if (!instance)
        return;

    emit instance->serverRequested(address, this);
    QObject::connect(d, SIGNAL(newServerConnection(QDBusConnectionPrivate*)),
                     this, SLOT(_q_newConnection(QDBusConnectionPrivate*)), Qt::QueuedConnection);
}

/*!
    Constructs a QDBusServer with the given \a parent. The server will listen
    for connections in \c {/tmp} (on Unix systems) or on a TCP port bound to
    localhost (elsewhere).
*/
QDBusServer::QDBusServer(QObject *parent)
    : QObject(parent), d(nullptr)
{
#ifdef Q_OS_UNIX
    // Use Unix sockets on Unix systems only
    const QString address = QStringLiteral("unix:tmpdir=/tmp");
#else
    const QString address = QStringLiteral("tcp:");
#endif

    if (!qdbus_loadLibDBus())
        return;

    QDBusConnectionManager *instance = QDBusConnectionManager::instance();
    if (!instance)
        return;

    emit instance->serverRequested(address, this);
    QObject::connect(d, SIGNAL(newServerConnection(QDBusConnectionPrivate*)),
                     this, SLOT(_q_newConnection(QDBusConnectionPrivate*)), Qt::QueuedConnection);
}

/*!
    Destructs a QDBusServer
*/
QDBusServer::~QDBusServer()
{
    QMutex *managerMutex = nullptr;
    if (QDBusConnectionManager::instance())
        managerMutex = &QDBusConnectionManager::instance()->mutex;
    QMutexLocker locker(managerMutex);
    QWriteLocker writeLocker(&d->lock);
    if (QDBusConnectionManager::instance()) {
        for (const QString &name : qAsConst(d->serverConnectionNames))
            QDBusConnectionManager::instance()->removeConnection(name);
        d->serverConnectionNames.clear();
        locker.unlock();
    }
    d->serverObject = nullptr;
    d->ref.storeRelaxed(0);
    d->deleteLater();
}

/*!
    Returns \c true if this QDBusServer object is connected.

    If it isn't connected, you need to call the constructor again.
*/
bool QDBusServer::isConnected() const
{
    return d && d->server && q_dbus_server_get_is_connected(d->server);
}

/*!
    Returns the last error that happened in this server.

    This function is provided for low-level code.
*/
QDBusError QDBusServer::lastError() const
{
    return d ? d->lastError : QDBusError(QDBusError::Disconnected, QDBusUtil::disconnectedErrorMessage());
}

/*!
    Returns the address this server is associated with.
*/
QString QDBusServer::address() const
{
    QString addr;
    if (d && d->server) {
        char *c = q_dbus_server_get_address(d->server);
        addr = QString::fromUtf8(c);
        q_dbus_free(c);
    }

    return addr;
}

/*!
    \since 5.3

    If \a value is set to true, an incoming connection can proceed even if the
    connecting client is not authenticated as a user.

    By default, this value is false.

    \sa isAnonymousAuthenticationAllowed()
*/
void QDBusServer::setAnonymousAuthenticationAllowed(bool value)
{
    d->anonymousAuthenticationAllowed = value;
}

/*!
    \since 5.3

    Returns true if anonymous authentication is allowed.

    \sa setAnonymousAuthenticationAllowed()
*/
bool QDBusServer::isAnonymousAuthenticationAllowed() const
{
    return d->anonymousAuthenticationAllowed;
}

/*!
  \fn void QDBusServer::newConnection(const QDBusConnection &connection)

  This signal is emitted when a new client connection \a connection is
  established to the server.
 */

QT_END_NAMESPACE

#include "moc_qdbusserver.cpp"

#endif // QT_NO_DBUS