chatserver.cpp Example File

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  ** Contact: http://www.qt.io/licensing/
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  ** This file is part of the QtBluetooth module of the Qt Toolkit.
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  #include "chatserver.h"

  #include <qbluetoothserver.h>
  #include <qbluetoothsocket.h>
  #include <qbluetoothlocaldevice.h>

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

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

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

  void ChatServer::startServer(const QBluetoothAddress& localAdapter)
  {
      if (rfcommServer)
          return;

      rfcommServer = new QBluetoothServer(QBluetoothServiceInfo::RfcommProtocol, this);
      connect(rfcommServer, SIGNAL(newConnection()), this, SLOT(clientConnected()));
      bool result = rfcommServer->listen(localAdapter);
      if (!result) {
          qWarning() << "Cannot bind chat server to" << localAdapter.toString();
          return;
      }

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

      QBluetoothServiceInfo::Sequence classId;

      classId << QVariant::fromValue(QBluetoothUuid(QBluetoothUuid::SerialPort));
      serviceInfo.setAttribute(QBluetoothServiceInfo::BluetoothProfileDescriptorList,
                               classId);

      classId.prepend(QVariant::fromValue(QBluetoothUuid(serviceUuid)));

      serviceInfo.setAttribute(QBluetoothServiceInfo::ServiceClassIds, classId);
      serviceInfo.setAttribute(QBluetoothServiceInfo::BluetoothProfileDescriptorList,classId);

      serviceInfo.setAttribute(QBluetoothServiceInfo::ServiceName, tr("Bt Chat Server"));
      serviceInfo.setAttribute(QBluetoothServiceInfo::ServiceDescription,
                               tr("Example bluetooth chat server"));
      serviceInfo.setAttribute(QBluetoothServiceInfo::ServiceProvider, tr("qt-project.org"));

      serviceInfo.setServiceUuid(QBluetoothUuid(serviceUuid));

      QBluetoothServiceInfo::Sequence publicBrowse;
      publicBrowse << QVariant::fromValue(QBluetoothUuid(QBluetoothUuid::PublicBrowseGroup));
      serviceInfo.setAttribute(QBluetoothServiceInfo::BrowseGroupList,
                               publicBrowse);

      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(localAdapter);
  }

  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()));
      }
  }