sslechoserver.cpp Example File | Qt WebSockets 5.9

Qt 5.9 | Qt WebSockets | SSL Echo Server Example | sslechoserver.cpp Example File

Qt 5.9.4 Reference Documentation

# sslechoserver.cpp Example File

sslechoserver/sslechoserver.cpp

      /****************************************************************************
      **
      ** Copyright (C) 2016 Kurt Pattyn <pattyn.kurt@gmail.com>.
      ** Contact: https://www.qt.io/licensing/
      **
      ** This file is part of the QtWebSockets module of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:BSD$
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      ** BSD License Usage
      ** Alternatively, you may use this file under the terms of the BSD license
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      **
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      ** modification, are permitted provided that the following conditions are
      ** met:
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      ****************************************************************************/
      #include "sslechoserver.h"
      #include "QtWebSockets/QWebSocketServer"
      #include "QtWebSockets/QWebSocket"
      #include <QtCore/QDebug>
      #include <QtCore/QFile>
      #include <QtNetwork/QSslCertificate>
      #include <QtNetwork/QSslKey>

      QT_USE_NAMESPACE

      SslEchoServer::SslEchoServer(quint16 port, QObject *parent) :
          QObject(parent),
          m_pWebSocketServer(Q_NULLPTR)
      {
          m_pWebSocketServer = new QWebSocketServer(QStringLiteral("SSL Echo Server"),
                                                    QWebSocketServer::SecureMode,
                                                    this);
          QSslConfiguration sslConfiguration;
          QFile certFile(QStringLiteral(":/localhost.cert"));
          QFile keyFile(QStringLiteral(":/localhost.key"));
          certFile.open(QIODevice::ReadOnly);
          keyFile.open(QIODevice::ReadOnly);
          QSslCertificate certificate(&certFile, QSsl::Pem);
          QSslKey sslKey(&keyFile, QSsl::Rsa, QSsl::Pem);
          certFile.close();
          keyFile.close();
          sslConfiguration.setPeerVerifyMode(QSslSocket::VerifyNone);
          sslConfiguration.setLocalCertificate(certificate);
          sslConfiguration.setPrivateKey(sslKey);
          sslConfiguration.setProtocol(QSsl::TlsV1SslV3);
          m_pWebSocketServer->setSslConfiguration(sslConfiguration);

          if (m_pWebSocketServer->listen(QHostAddress::Any, port))
          {
              qDebug() << "SSL Echo Server listening on port" << port;
              connect(m_pWebSocketServer, &QWebSocketServer::newConnection,
                      this, &SslEchoServer::onNewConnection);
              connect(m_pWebSocketServer, &QWebSocketServer::sslErrors,
                      this, &SslEchoServer::onSslErrors);
          }
      }

      SslEchoServer::~SslEchoServer()
      {
          m_pWebSocketServer->close();
          qDeleteAll(m_clients.begin(), m_clients.end());
      }

      void SslEchoServer::onNewConnection()
      {
          QWebSocket *pSocket = m_pWebSocketServer->nextPendingConnection();

          qDebug() << "Client connected:" << pSocket->peerName() << pSocket->origin();

          connect(pSocket, &QWebSocket::textMessageReceived, this, &SslEchoServer::processTextMessage);
          connect(pSocket, &QWebSocket::binaryMessageReceived,
                  this, &SslEchoServer::processBinaryMessage);
          connect(pSocket, &QWebSocket::disconnected, this, &SslEchoServer::socketDisconnected);

          m_clients << pSocket;
      }

      void SslEchoServer::processTextMessage(QString message)
      {
          QWebSocket *pClient = qobject_cast<QWebSocket *>(sender());
          if (pClient)
          {
              pClient->sendTextMessage(message);
          }
      }

      void SslEchoServer::processBinaryMessage(QByteArray message)
      {
          QWebSocket *pClient = qobject_cast<QWebSocket *>(sender());
          if (pClient)
          {
              pClient->sendBinaryMessage(message);
          }
      }

      void SslEchoServer::socketDisconnected()
      {
          qDebug() << "Client disconnected";
          QWebSocket *pClient = qobject_cast<QWebSocket *>(sender());
          if (pClient)
          {
              m_clients.removeAll(pClient);
              pClient->deleteLater();
          }
      }

      void SslEchoServer::onSslErrors(const QList<QSslError> &)
      {
          qDebug() << "Ssl errors occurred";
      }