chatserver.cpp Example File

 /****************************************************************************
 **
 ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
 ** Contact: http://www.qt-project.org/legal
 **
 ** This file is part of the Qt Mobility Components.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** You may use this file under the terms of the BSD license as follows:
 **
 ** "Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
 **     of its contributors may be used to endorse or promote products derived
 **     from this software without specific prior written permission.
 **
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include "chatserver.h"

 #include <qrfcommserver.h>
 #include <qbluetoothsocket.h>

 static const QLatin1String serviceUuid("e8e10f95-1a70-4b27-9ccf-02010264e9c8");

 ChatServer::ChatServer(QObject *parent)
 :   QObject(parent), rfcommServer(0)
 {
 }

 ChatServer::~ChatServer()
 {
     stopServer();
 }

 void ChatServer::startServer()
 {
     if (rfcommServer)
         return;

     rfcommServer = new QRfcommServer(this);
     connect(rfcommServer, SIGNAL(newConnection()), this, SLOT(clientConnected()));
     rfcommServer->listen();

     serviceInfo.setAttribute(QBluetoothServiceInfo::ServiceRecordHandle, (uint)0x00010010);

     QBluetoothServiceInfo::Sequence classId;
     classId << QVariant::fromValue(QBluetoothUuid(serviceUuid));
     serviceInfo.setAttribute(QBluetoothServiceInfo::ServiceClassIds, classId);

     serviceInfo.setAttribute(QBluetoothServiceInfo::ServiceName, tr("Bt Chat Server"));
     serviceInfo.setAttribute(QBluetoothServiceInfo::ServiceDescription,
                              tr("Example bluetooth chat server"));
     serviceInfo.setAttribute(QBluetoothServiceInfo::ServiceProvider, tr("Nokia, QtDF"));

     serviceInfo.setServiceUuid(QBluetoothUuid(serviceUuid));

     serviceInfo.setAttribute(QBluetoothServiceInfo::BrowseGroupList,
                              QBluetoothUuid(QBluetoothUuid::PublicBrowseGroup));

     QBluetoothServiceInfo::Sequence protocolDescriptorList;
     QBluetoothServiceInfo::Sequence protocol;
     protocol << QVariant::fromValue(QBluetoothUuid(QBluetoothUuid::L2cap));
     protocolDescriptorList.append(QVariant::fromValue(protocol));
     protocol.clear();
     protocol << QVariant::fromValue(QBluetoothUuid(QBluetoothUuid::Rfcomm))
              << QVariant::fromValue(quint8(rfcommServer->serverPort()));
     protocolDescriptorList.append(QVariant::fromValue(protocol));
     serviceInfo.setAttribute(QBluetoothServiceInfo::ProtocolDescriptorList,
                              protocolDescriptorList);

     serviceInfo.registerService();
 }

 void ChatServer::stopServer()
 {
     // Unregister service
     serviceInfo.unregisterService();

     // Close sockets
     qDeleteAll(clientSockets);

     // Close server
     delete rfcommServer;
     rfcommServer = 0;
 }

 void ChatServer::sendMessage(const QString &message)
 {
     QByteArray text = message.toUtf8() + '\n';

     foreach (QBluetoothSocket *socket, clientSockets)
         socket->write(text);
 }

 void ChatServer::clientConnected()
 {
     QBluetoothSocket *socket = rfcommServer->nextPendingConnection();
     if (!socket)
         return;

     connect(socket, SIGNAL(readyRead()), this, SLOT(readSocket()));
     connect(socket, SIGNAL(disconnected()), this, SLOT(clientDisconnected()));
     clientSockets.append(socket);

     emit clientConnected(socket->peerName());
 }

 void ChatServer::clientDisconnected()
 {
     QBluetoothSocket *socket = qobject_cast<QBluetoothSocket *>(sender());
     if (!socket)
         return;

     emit clientDisconnected(socket->peerName());

     clientSockets.removeOne(socket);

     socket->deleteLater();
 }

 void ChatServer::readSocket()
 {
     QBluetoothSocket *socket = qobject_cast<QBluetoothSocket *>(sender());
     if (!socket)
         return;

     while (socket->canReadLine()) {
         QByteArray line = socket->readLine().trimmed();
         emit messageReceived(socket->peerName(),
                              QString::fromUtf8(line.constData(), line.length()));
     }
 }