sslechoclient.cpp Example File | Qt WebSockets 5.4

- Qt 5.4
- Qt WebSockets
- SSL Echo Client Example
- sslechoclient.cpp Example File
- Qt 5.4.2 Reference Documentation

# sslechoclient.cpp Example File

sslechoclient/sslechoclient.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2014 Kurt Pattyn <pattyn.kurt@gmail.com>.
    ** Contact: http://www.qt-project.org/legal
    **
    ** This file is part of the QtWebSockets module of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:LGPL21$
    ** Commercial License Usage
    ** Licensees holding valid commercial Qt licenses may use this file in
    ** accordance with the commercial license agreement provided with the
    ** Software or, alternatively, in accordance with the terms contained in
    ** a written agreement between you and Digia. For licensing terms and
    ** conditions see http://qt.digia.com/licensing. For further information
    ** use the contact form at http://qt.digia.com/contact-us.
    **
    ** GNU Lesser General Public License Usage
    ** Alternatively, this file may be used under the terms of the GNU Lesser
    ** General Public License version 2.1 or version 3 as published by the Free
    ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
    ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
    ** following information to ensure the GNU Lesser General Public License
    ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
    ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    **
    ** In addition, as a special exception, Digia gives you certain additional
    ** rights. These rights are described in the Digia Qt LGPL Exception
    ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
    **
    ** $QT_END_LICENSE$
    **
    ****************************************************************************/
    #include "sslechoclient.h"
    #include <QtCore/QDebug>
    #include <QtWebSockets/QWebSocket>
    #include <QCoreApplication>

    QT_USE_NAMESPACE

    SslEchoClient::SslEchoClient(const QUrl &url, QObject *parent) :
        QObject(parent),
        m_webSocket()
    {
        connect(&m_webSocket, &QWebSocket::connected, this, &SslEchoClient::onConnected);
        typedef void (QWebSocket:: *sslErrorsSignal)(const QList<QSslError> &);
        connect(&m_webSocket, static_cast<sslErrorsSignal>(&QWebSocket::sslErrors),
                this, &SslEchoClient::onSslErrors);
        m_webSocket.open(QUrl(url));
    }

    void SslEchoClient::onConnected()
    {
        qDebug() << "WebSocket connected";
        connect(&m_webSocket, &QWebSocket::textMessageReceived,
                this, &SslEchoClient::onTextMessageReceived);
        m_webSocket.sendTextMessage(QStringLiteral("Hello, world!"));
    }

    void SslEchoClient::onTextMessageReceived(QString message)
    {
        qDebug() << "Message received:" << message;
        qApp->quit();
    }

    void SslEchoClient::onSslErrors(const QList<QSslError> &errors)
    {
        Q_UNUSED(errors);

        // WARNING: Never ignore SSL errors in production code.
        // The proper way to handle self-signed certificates is to add a custom root
        // to the CA store.

        m_webSocket.ignoreSslErrors();
    }