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50
51#include "mainwindow.h"
52#include "nicselector.h"
53#include "ui_mainwindow.h"
54
55MainWindow::MainWindow()
56 : ui(new Ui::MainWindow)
57{
58 ui->setupUi(this);
59
60 connect(sender: &server, signal: &DtlsServer::errorMessage, receiver: this, slot: &MainWindow::addErrorMessage);
61 connect(sender: &server, signal: &DtlsServer::warningMessage, receiver: this, slot: &MainWindow::addWarningMessage);
62 connect(sender: &server, signal: &DtlsServer::infoMessage, receiver: this, slot: &MainWindow::addInfoMessage);
63 connect(sender: &server, signal: &DtlsServer::datagramReceived, receiver: this, slot: &MainWindow::addClientMessage);
64
65 updateUi();
66}
67
68MainWindow::~MainWindow()
69{
70 delete ui;
71}
72
73void MainWindow::on_startButton_clicked()
74{
75 if (!server.isListening()) {
76 NicSelector ipDialog;
77 if (ipDialog.exec() == QDialog::Accepted) {
78 const QHostAddress address = ipDialog.selectedIp();
79 const quint16 port = ipDialog.selectedPort();
80 if (address.isNull()) {
81 addErrorMessage(message: tr(s: "Failed to start listening, no valid address/port"));
82 } else if (server.listen(address, port)) {
83 addInfoMessage(message: tr(s: "Server is listening on address %1 and port %2")
84 .arg(a: address.toString())
85 .arg(a: port));
86 }
87 }
88 } else {
89 server.close();
90 addInfoMessage(message: tr(s: "Server is not accepting new connections"));
91 }
92
93 updateUi();
94}
95
96void MainWindow::on_quitButton_clicked()
97{
98 QCoreApplication::exit(retcode: 0);
99}
100
101void MainWindow::updateUi()
102{
103 server.isListening() ? ui->startButton->setText(tr(s: "Stop listening"))
104 : ui->startButton->setText(tr(s: "Start listening"));
105}
106
107//! [0]
108const QString colorizer(QStringLiteral("<font color=\"%1\">%2</font><br>"));
109
110void MainWindow::addErrorMessage(const QString &message)
111{
112 ui->serverInfo->insertHtml(text: colorizer.arg(QStringLiteral("Crimson"), args: message));
113}
114
115void MainWindow::addWarningMessage(const QString &message)
116{
117 ui->serverInfo->insertHtml(text: colorizer.arg(QStringLiteral("DarkOrange"), args: message));
118}
119
120void MainWindow::addInfoMessage(const QString &message)
121{
122 ui->serverInfo->insertHtml(text: colorizer.arg(QStringLiteral("DarkBlue"), args: message));
123}
124
125void MainWindow::addClientMessage(const QString &peerInfo, const QByteArray &datagram,
126 const QByteArray &plainText)
127{
128 static const QString messageColor = QStringLiteral("DarkMagenta");
129 static const QString formatter = QStringLiteral("<br>---------------"
130 "<br>A message from %1"
131 "<br>DTLS datagram:<br> %2"
132 "<br>As plain text:<br> %3");
133
134 const QString html = formatter.arg(args: peerInfo, args: QString::fromUtf8(str: datagram.toHex(separator: ' ')),
135 args: QString::fromUtf8(str: plainText));
136 ui->messages->insertHtml(text: colorizer.arg(a1: messageColor, a2: html));
137}
138//! [0]
139

source code of qtbase/examples/network/secureudpserver/mainwindow.cpp