1// Copyright (C) 2016 The Qt Company Ltd.
2// Copyright (C) 2016 Intel Corporation.
3// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
4
5#include "qdbusserver.h"
6#include "qdbusconnection_p.h"
7#include "qdbusconnectionmanager_p.h"
8#include "qdbusutil_p.h"
9
10#include <QtCore/private/qlocking_p.h>
11
12#ifndef QT_NO_DBUS
13
14QT_BEGIN_NAMESPACE
15
16/*!
17 \class QDBusServer
18 \inmodule QtDBus
19
20 \brief The QDBusServer class provides peer-to-peer communication
21 between processes on the same computer.
22*/
23
24/*!
25 Constructs a QDBusServer with the given \a address, and the given
26 \a parent.
27*/
28QDBusServer::QDBusServer(const QString &address, QObject *parent)
29 : QObject(parent), d(nullptr)
30{
31 if (address.isEmpty())
32 return;
33
34 if (!qdbus_loadLibDBus())
35 return;
36
37 QDBusConnectionManager *instance = QDBusConnectionManager::instance();
38 if (!instance)
39 return;
40
41 instance->createServer(address, server: this);
42 Q_ASSERT(d != nullptr);
43}
44
45/*!
46 Constructs a QDBusServer with the given \a parent. The server will listen
47 for connections in \c {/tmp} (on Unix systems) or on a TCP port bound to
48 localhost (elsewhere).
49*/
50QDBusServer::QDBusServer(QObject *parent)
51 : QDBusServer(
52#ifdef Q_OS_UNIX
53 // Use Unix sockets on Unix systems only
54 QStringLiteral("unix:tmpdir=/tmp"),
55#else
56 QStringLiteral("tcp:"),
57#endif
58 parent)
59{
60}
61
62/*!
63 Destructs a QDBusServer
64*/
65QDBusServer::~QDBusServer()
66{
67 if (!d)
68 return;
69
70 auto manager = QDBusConnectionManager::instance();
71 if (!manager)
72 return;
73
74 QWriteLocker writeLocker(&d->lock);
75 manager->removeConnections(names: d->serverConnectionNames);
76 d->serverConnectionNames.clear();
77
78 d->serverObject = nullptr;
79 d->ref.storeRelaxed(newValue: 0);
80 d->deleteLater();
81}
82
83/*!
84 Returns \c true if this QDBusServer object is connected.
85
86 If it isn't connected, you need to call the constructor again.
87*/
88bool QDBusServer::isConnected() const
89{
90 return d && d->server && q_dbus_server_get_is_connected(server: d->server);
91}
92
93/*!
94 Returns the last error that happened in this server.
95
96 This function is provided for low-level code.
97*/
98QDBusError QDBusServer::lastError() const
99{
100 return d ? d->lastError : QDBusError(QDBusError::Disconnected, QDBusUtil::disconnectedErrorMessage());
101}
102
103/*!
104 Returns the address this server is associated with.
105*/
106QString QDBusServer::address() const
107{
108 QString addr;
109 if (d && d->server) {
110 char *c = q_dbus_server_get_address(server: d->server);
111 addr = QString::fromUtf8(utf8: c);
112 q_dbus_free(memory: c);
113 }
114
115 return addr;
116}
117
118/*!
119 \since 5.3
120
121 If \a value is set to true, an incoming connection can proceed even if the
122 connecting client is not authenticated as a user.
123
124 By default, this value is false.
125
126 \sa isAnonymousAuthenticationAllowed()
127*/
128void QDBusServer::setAnonymousAuthenticationAllowed(bool value)
129{
130 if (!d)
131 return;
132
133 d->anonymousAuthenticationAllowed = value;
134}
135
136/*!
137 \since 5.3
138
139 Returns true if anonymous authentication is allowed.
140
141 \sa setAnonymousAuthenticationAllowed()
142*/
143bool QDBusServer::isAnonymousAuthenticationAllowed() const
144{
145 if (!d)
146 return false;
147
148 return d->anonymousAuthenticationAllowed;
149}
150
151/*!
152 \fn void QDBusServer::newConnection(const QDBusConnection &connection)
153
154 This signal is emitted when a new client connection \a connection is
155 established to the server.
156 */
157
158QT_END_NAMESPACE
159
160#include "moc_qdbusserver.cpp"
161
162#endif // QT_NO_DBUS
163

source code of qtbase/src/dbus/qdbusserver.cpp