SyncServer.hpp

/*
 * Stellarium Remote Sync plugin
 * Copyright (C) 2015 Florian Schaukowitsch
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA  02110-1335, USA.
 */

#ifndef SYNCSERVER_HPP_
#define SYNCSERVER_HPP_

#include "SyncProtocol.hpp"
#include <QObject>
#include <QAbstractSocket>
#include <QDateTime>
#include <QLoggingCategory>
#include <QUuid>

class QTcpServer;
class SyncServerEventSender;

Q_DECLARE_LOGGING_CATEGORY(syncServer)

class SyncServer : public QObject
{
    Q_OBJECT

public:
    SyncServer(QObject* parent = Q_NULLPTR);
    virtual ~SyncServer();

    void update();

    void broadcastMessage(const SyncProtocol::SyncMessage& msg);
public slots:
    bool start(int port);
    void stop();
    QString errorString() const;
signals:
    void serverStopped();

protected:
    void timerEvent(QTimerEvent* evt) Q_DECL_OVERRIDE;
private slots:
    void handleNewConnection();
    void connectionError(QAbstractSocket::SocketError err);

    void clientAuthenticated(SyncRemotePeer& peer);
    void clientDisconnected(bool clean);

private:
    void addSender(SyncServerEventSender* snd);
    void checkTimeouts();
    void checkStopState();
    //use composition instead of inheritance, cleaner interfaace this way
    //for now, we use TCP, but will test multicast UDP later if the basic setup is working
    QTcpServer* qserver;
    QVector<SyncMessageHandler*> handlerList;
    QVector<SyncServerEventSender*> senderList;

    bool stopping;

    // client list
    typedef QVector<SyncRemotePeer*> tClientList;
    tClientList clients;

    QByteArray broadcastBuffer;
    int timeoutTimerId;
    friend class ServerAuthHandler;
};

#endif