server.h Example File

secureudpserver/server.h

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  #ifndef SERVER_H
  #define SERVER_H

  #include <QtCore>
  #include <QtNetwork>

  #include <vector>

  class DtlsServer : public QObject
  {
      Q_OBJECT

  public:
      DtlsServer();
      ~DtlsServer();

      bool listen(const QHostAddress &address, quint16 port);
      bool isListening() const;
      void close();

  signals:
      void errorMessage(const QString &message);
      void warningMessage(const QString &message);
      void infoMessage(const QString &message);

      void datagramReceived(const QString &peerInfo, const QByteArray &cipherText,
                            const QByteArray &plainText);

  private slots:
      void readyRead();
      void pskRequired(QSslPreSharedKeyAuthenticator *auth);

  private:
      void handleNewConnection(const QHostAddress &peerAddress, quint16 peerPort,
                               const QByteArray &clientHello);

      using DtlsConnection = QSharedPointer<QDtls>;
      void doHandshake(DtlsConnection newConnection, const QByteArray &clientHello);
      void decryptDatagram(DtlsConnection connection, const QByteArray &clientMessage);
      void shutdown();

      bool listening = false;
      QUdpSocket serverSocket;

      QSslConfiguration serverConfiguration;
      QDtlsClientVerifier cookieSender;
      QVector<DtlsConnection> knownClients;

      Q_DISABLE_COPY(DtlsServer)
  };


  #endif // SERVER_H