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Diffstat (limited to 'examples/network/secureudpserver/mainwindow.cpp')
-rw-r--r-- | examples/network/secureudpserver/mainwindow.cpp | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/examples/network/secureudpserver/mainwindow.cpp b/examples/network/secureudpserver/mainwindow.cpp new file mode 100644 index 0000000000..ef1974c311 --- /dev/null +++ b/examples/network/secureudpserver/mainwindow.cpp @@ -0,0 +1,138 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "mainwindow.h" +#include "nicselector.h" +#include "ui_mainwindow.h" + +MainWindow::MainWindow() + : ui(new Ui::MainWindow) +{ + ui->setupUi(this); + + connect(&server, &DtlsServer::errorMessage, this, &MainWindow::addErrorMessage); + connect(&server, &DtlsServer::warningMessage, this, &MainWindow::addWarningMessage); + connect(&server, &DtlsServer::infoMessage, this, &MainWindow::addInfoMessage); + connect(&server, &DtlsServer::datagramReceived, this, &MainWindow::addClientMessage); + + updateUi(); +} + +MainWindow::~MainWindow() +{ + delete ui; +} + +void MainWindow::on_startButton_clicked() +{ + if (!server.isListening()) { + NicSelector ipDialog; + if (ipDialog.exec() == QDialog::Accepted) { + const QHostAddress address = ipDialog.selectedIp(); + const quint16 port = ipDialog.selectedPort(); + if (address.isNull()) { + addErrorMessage(tr("Failed to start listening, no valid address/port")); + } else if (server.listen(address, port)) { + addInfoMessage(tr("Server is listening on address %1 and port %2") + .arg(address.toString()) + .arg(port)); + } + } + } else { + server.close(); + addInfoMessage(tr("Server is not accepting new connections")); + } + + updateUi(); +} + +void MainWindow::on_quitButton_clicked() +{ + QCoreApplication::exit(0); +} + +void MainWindow::updateUi() +{ + server.isListening() ? ui->startButton->setText(tr("Stop listening")) + : ui->startButton->setText(tr("Start listening")); +} + +//! [0] +const QString colorizer(QStringLiteral("<font color=\"%1\">%2</font><br>")); + +void MainWindow::addErrorMessage(const QString &message) +{ + ui->serverInfo->insertHtml(colorizer.arg(QStringLiteral("Crimson"), message)); +} + +void MainWindow::addWarningMessage(const QString &message) +{ + ui->serverInfo->insertHtml(colorizer.arg(QStringLiteral("DarkOrange"), message)); +} + +void MainWindow::addInfoMessage(const QString &message) +{ + ui->serverInfo->insertHtml(colorizer.arg(QStringLiteral("DarkBlue"), message)); +} + +void MainWindow::addClientMessage(const QString &peerInfo, const QByteArray &datagram, + const QByteArray &plainText) +{ + static const QString messageColor = QStringLiteral("DarkMagenta"); + static const QString formatter = QStringLiteral("<br>---------------" + "<br>A message from %1" + "<br>DTLS datagram:<br> %2" + "<br>As plain text:<br> %3"); + + const QString html = formatter.arg(peerInfo, QString::fromUtf8(datagram.toHex(' ')), + QString::fromUtf8(plainText)); + ui->messages->insertHtml(colorizer.arg(messageColor, html)); +} +//! 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