Add qmodmaster and move udp app to applications

Applications/Qt-application_for_UDP_broadcast/mainwindow.cpp

@@ -0,0 +1,258 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+#include "QUdpSocket"
+
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
+    , ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+    m_udpSocket = new QUdpSocket(this);
+    m_udpSocket->bind(QHostAddress::Any, UDP_PORT, QUdpSocket::ShareAddress);
+
+    connect(m_udpSocket, &QUdpSocket::readyRead,
+            this, &MainWindow::processPendingDatagrams);
+
+    //Timer just to ask twice (udp)
+    m_timer = new QTimer(this);
+    m_timer->setSingleShot(true);
+    m_timer->setInterval(500);
+    connect(m_timer,&QTimer::timeout, this, &MainWindow::SendRequest);
+
+    //Send Request on startup
+    on_pbRefresh_clicked();
+
+    ui->devices->setIconSize(QSize(48,48));
+    ui->devices->setContextMenuPolicy(Qt::CustomContextMenu);
+
+    ui->comboBox->addItem("default");
+    ui->comboBox->addItem("192.168.69.10");         //test
+    if (ui->comboBox->currentText()=="default"){
+        ui->ChangeOwner->setDisabled(true);
+    }
+
+//    //Example items for screenshot:
+//    QListWidgetItem * item = new QListWidgetItem(QIcon(":/res/stm32.png"), "00:80:E1:05:44:21 @ 192.168.0.11 (John Doe)");
+//    ui->devices->addItem(item);
+//    QListWidgetItem * item2 = new QListWidgetItem(QIcon(":/res/rpi.png"), "E4:5F:01:05:44:21 @ 192.168.0.11 (Jane Doe)");
+//    ui->devices->addItem(item2);
+//    QListWidgetItem * item3 = new QListWidgetItem(QIcon(":/res/unknown.png"), "44:44:44:05:44:21 @ 192.168.0.11 (Juul Doe)");
+//    ui->devices->addItem(item3);
+    connect(ui->actionAbout_Qt, &QAction::triggered, QApplication::aboutQt);
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::on_pbRefresh_clicked()
+{
+    this->func = 0;
+    SendRequest();    
+    m_timer->start();
+}
+
+void MainWindow::SendRequest()
+{
+    int broadcasts_send = 0;
+    int data_send = 0;
+    QUdpSocket udpSocket;
+    QByteArray datagram;
+    if(this->func == 0){
+        datagram = UDP_REQUEST"v1.0";
+        //Get all the Network Interface Cards of this Computer
+        QList<QNetworkInterface> NICs = QNetworkInterface::allInterfaces();
+        foreach(QNetworkInterface NIC, NICs){
+            //Get all the adresses on this NIC
+            QList<QNetworkAddressEntry> adresses = NIC.addressEntries();
+            foreach(QNetworkAddressEntry adress, adresses){
+                QD << NIC.name() << adress.ip();
+                //If broadcast adress = null => IPv6 (no support for broadcasts)
+                QHostAddress broadc_addr = adress.broadcast();
+                if(!broadc_addr.isNull()){
+                    //Send UDP packet
+                    udpSocket.writeDatagram(datagram, adress.broadcast(), UDP_PORT);
+                    broadcasts_send++;
+                }
+            }
+        }
+    }
+    else if(this->func == 1){
+        QHostAddress addr(ui->comboBox->currentText());
+        udpSocket.writeDatagram(this->data, addr, UDP_PORT);
+        data_send++;
+    }
+
+
+    if(broadcasts_send == 0 && data_send == 0){
+        ui->pteLog->appendPlainText("Warning: no Network Interface Cards or valid IP adresses found (no broadcasts send)");
+    }else if(data_send != 0){
+        ui->pteLog->appendPlainText(tr("Info: %1 message sent to %2").arg(data_send).arg(ui->comboBox->currentText()));
+    }else{
+        ui->pteLog->appendPlainText(tr("Info: %1 broadcasts send").arg(broadcasts_send));
+    }
+}
+
+void MainWindow::processPendingDatagrams()
+{
+    QByteArray datagram;
+    QHostAddress host;
+
+    // just get rid of every host in the combobox, not pretty code, i know
+    if(this->func == 0){
+        for(int i = 1; i < ui->comboBox->count(); i++){
+            ui->comboBox->removeItem(i);
+        }
+    }
+
+    while (m_udpSocket->hasPendingDatagrams()) {
+        datagram.resize(int(m_udpSocket->pendingDatagramSize()));
+        m_udpSocket->readDatagram(datagram.data(), datagram.size(), &host);
+        QString msg = QString(datagram).remove(QRegularExpression("\\r|\\n"));
+        processDatagram(msg, host.toString());
+    }
+}
+
+void MainWindow::processDatagram(QString msg,QString host)
+{
+
+    //Append received data to log
+    QString logLine = tr("Van %1: \"%2\"")
+            .arg(host)
+            .arg(msg);
+    ui->pteLog->appendPlainText(logLine);
+
+    //We receive our own request. So a check to see if it is the request:
+    if(msg.indexOf(UDP_REQUEST) != -1){
+        return; //we are done here...
+    }
+
+    // add new host to select in combobox
+    if(this->func == 0){
+        ui->comboBox->addItem(host);
+    }
+
+
+    //RegEx for MAC adress
+    QRegularExpression macRegExp("([0-9A-F]{2})[:-]([0-9A-F]{2})[:-]([0-9A-F]{2})[:-]([0-9A-F]{2})[:-]([0-9A-F]{2})[:-]([0-9A-F]{2})");
+    QRegularExpressionMatch match = macRegExp.match(msg.toUpper());
+    if(match.hasMatch()){
+        QString foundOUI = match.captured(1) % match.captured(2) % match.captured(3);
+        QString foundMAC = match.captured(0);
+        QString imgName = ":/res/unknown.png";
+        /*grep STMicro oui.txt | grep base
+        0080E1     (base 16)            STMicroelectronics SRL
+        10E77A     (base 16)            STMicrolectronics International NV*/
+        if(foundOUI == "0080E1" || foundOUI == "10E77A") {
+            imgName = ":/res/stm32.png";
+        }
+        /*grep Raspberry oui.txt | grep base
+        DCA632     (base 16)            Raspberry Pi Trading Ltd
+        E45F01     (base 16)            Raspberry Pi Trading Ltd
+        B827EB     (base 16)            Raspberry Pi Foundation*/
+        if(foundOUI == "DCA632" || foundOUI == "E45F01" || foundOUI == "B827EB") {
+            imgName = ":/res/rpi.png";
+        }
+        QString needle = UDP_ANS_OWNER;
+        QString owner = "???";
+        int index = msg.indexOf(needle);
+        if(index != -1){
+            owner = msg.mid(index + needle.length());
+        }else{
+            ui->pteLog->appendPlainText("Warning: no OWNER found in message");
+        }
+
+        QListWidgetItem * item = searchItem(foundMAC);
+        if(item == nullptr){
+            item = new QListWidgetItem();
+            ui->devices->addItem(item);
+        }
+        item->setIcon(QIcon(imgName));
+        item->setText(tr("%1 @ %2 (%3)").arg(foundMAC).arg(host).arg(owner));
+        item->setToolTip(tr("Last seen: %1").arg(QTime::currentTime().toString("H:mm:ss.zzz")));
+    }else{
+        ui->pteLog->appendPlainText("Warning: no MAC found in message");
+    }
+}
+
+QListWidgetItem *MainWindow::searchItem(QString MAC)
+{
+    QListWidgetItem * item = nullptr;
+    for(int i = 0; i < ui->devices->count(); i++){
+        item = ui->devices->item(i);
+        if(item->text().contains(MAC)){
+            break;
+        }
+        item = nullptr;
+    }
+    return item;
+}
+
+void MainWindow::on_devices_itemDoubleClicked(QListWidgetItem *item)
+{
+    //Copy the IP to the clipboard
+    QString itemText = item->text();
+    int start = itemText.indexOf('@')+2;
+    int end = itemText.indexOf('(')-1;
+    QString ip = itemText.mid(start,end - start);
+    QClipboard *clipboard = QGuiApplication::clipboard();
+    clipboard->setText(ip);
+}
+
+void MainWindow::on_devices_customContextMenuRequested(const QPoint &pos)
+{
+    //create menu
+    QAction copyAction(QIcon(":/res/copy-icon.png"),"Copy IP");
+    QMenu menu;
+    menu.addAction(&copyAction);
+
+    //execute menu
+    QAction * action = menu.exec(ui->devices->mapToGlobal(pos));
+    if(action == &copyAction){
+        QListWidgetItem *item = ui->devices->itemAt(pos);
+        if(item){
+            on_devices_itemDoubleClicked(item);
+        }
+    }
+}
+
+void MainWindow::on_actionAbout_triggered()
+{
+    About ab(this);
+    ab.exec();
+}
+
+void MainWindow::on_name_textEdited(const QString &arg1)
+{
+    this->name = arg1;
+}
+
+
+
+void MainWindow::on_surname_textEdited(const QString &arg1)
+{
+    this->surname = arg1;
+}
+
+
+void MainWindow::on_comboBox_currentIndexChanged(int index)
+{
+    if(index == 0){
+        ui->ChangeOwner->setDisabled(true);
+    }
+    else{
+        ui->ChangeOwner->setDisabled(false);
+    }
+
+}
+
+
+void MainWindow::on_ChangeOwner_clicked()
+{
+    this->data = ("func1:name: " + this->name + ", surname: " + this->surname + "").toUtf8();
+    this->func = 1;
+    SendRequest();
+    m_timer->start();
+}
+