Example #1
0
int main(int argc, char* argv[])
{
   core::system::initHook();

   try
   {
      initializeLang();
      
      if (useChromiumDevtools())
      {
         // use QTcpSocket to find an open port. this is unfortunately a bit racey
         // but AFAICS there isn't a better solution for port selection
         QByteArray port;
         QTcpSocket* pSocket = new QTcpSocket();
         if (pSocket->bind())
         {
            quint16 port = pSocket->localPort();
            desktopInfo().setChromiumDevtoolsPort(port);
            core::system::setenv("QTWEBENGINE_REMOTE_DEBUGGING", safe_convert::numberToString(port));
            pSocket->close();
         }
      }

      // initialize log
      core::system::initializeLog("rdesktop",
                                  core::system::kLogLevelWarning,
                                  desktop::userLogPath());

      // ignore SIGPIPE
      Error error = core::system::ignoreSignal(core::system::SigPipe);
      if (error)
         LOG_ERROR(error);

      // attempt to remove stale lockfiles, as they can impede
      // application startup
      error = removeStaleOptionsLockfile();
      if (error)
         LOG_ERROR(error);

      // set application attributes
      QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
      
      // prepare command line arguments
      static std::vector<char*> arguments(argv, argv + argc);
      
      // enable viewport meta (allows us to control / restrict
      // certain touch gestures)
      static char enableViewport[] = "--enable-viewport";
      arguments.push_back(enableViewport);
      
#ifndef NDEBUG
      // disable web security for development builds (so we can
      // get access to sourcemaps)
      static char disableWebSecurity[] = "--disable-web-security";
      arguments.push_back(disableWebSecurity);
#endif
      
      // disable chromium renderer accessibility by default (it can cause
      // slowdown when used in conjunction with some applications; see e.g.
      // https://github.com/rstudio/rstudio/issues/1990)
      if (core::system::getenv("RSTUDIO_ACCESSIBILITY").empty())
      {
         static char disableRendererAccessibility[] = "--disable-renderer-accessibility";
         arguments.push_back(disableRendererAccessibility);
      }

#ifdef Q_OS_LINUX
      // workaround for Qt 5.10.1 bug "Could not find QtWebEngineProcess"
      // https://bugreports.qt.io/browse/QTBUG-67023
      // https://bugreports.qt.io/browse/QTBUG-66346
      static char noSandbox[] = "--no-sandbox";
      arguments.push_back(noSandbox);
#endif

#ifdef Q_OS_MAC
      // don't prefer compositing to LCD text rendering. when enabled, this causes the compositor to
      // be used too aggressively on Retina displays on macOS, with the side effect that the
      // scrollbar doesn't auto-hide because a compositor layer is present.
      // https://github.com/rstudio/rstudio/issues/1953
      static char disableCompositorPref[] = "--disable-prefer-compositing-to-lcd-text";
      arguments.push_back(disableCompositorPref);
      
      // disable gpu rasterization for certain display configurations.
      // this works around some of the rendering issues seen with RStudio.
      //
      // https://bugs.chromium.org/p/chromium/issues/detail?id=773705
      // https://github.com/rstudio/rstudio/issues/2093
      //
      // because the issue seems to only affect certain video cards on macOS
      // High Sierra, we scope that change to that particular configuration
      // for now (we can expand this list if more users report issues)
      core::Version macVersion(QSysInfo::productVersion().toStdString());
      if (macVersion.versionMajor() == 10 &&
          macVersion.versionMinor() == 13)
      {
         core::system::ProcessResult processResult;
         core::system::runCommand(
                  "/usr/sbin/system_profiler SPDisplaysDataType",
                  core::system::ProcessOptions(),
                  &processResult);

         std::string stdOut = processResult.stdOut;
         if (!stdOut.empty())
         {
            std::vector<std::string> blackList = {
               "NVIDIA GeForce GT 650M",
               "NVIDIA GeForce GT 750M"
            };

            for (const std::string& entry : blackList)
            {
               if (stdOut.find(entry) != std::string::npos)
               {
                  static char disableGpuRasterization[] = "--disable-gpu-rasterization";
                  arguments.push_back(disableGpuRasterization);
                  break;
               }
            }
         }
      }
#endif

      // re-assign command line arguments
      argc = (int) arguments.size();
      argv = &arguments[0];

      // prepare application for launch
      boost::scoped_ptr<QApplication> pApp;
      boost::scoped_ptr<ApplicationLaunch> pAppLaunch;
      ApplicationLaunch::init(QString::fromUtf8("RStudio"),
                              argc,
                              argv,
                              &pApp,
                              &pAppLaunch);

      // determine the filename that was passed to us
      QString filename;
#ifdef __APPLE__
      // get filename from OpenFile apple-event (pump to ensure delivery)
      pApp->processEvents();
      filename = verifyAndNormalizeFilename(
                              pAppLaunch->startupOpenFileRequest());
#endif
      // allow all platforms (including OSX) to check the command line.
      // we include OSX because the way Qt handles apple events is to
      // re-route them to the first instance to register for events. in
      // this case (for projects) we use this to initiate a launch
      // of the application with the project filename on the command line
      if (filename.isEmpty())
      {
         // get filename from command line arguments
         if (pApp->arguments().size() > 1)
         {
            QString arg = pApp->arguments().at(1);
            if (arg != QString::fromUtf8(kRunDiagnosticsOption))
               filename = verifyAndNormalizeFilename(arg);
         }
      }

      // if we have a filename and it is NOT a project file then see
      // if we can open it within an existing instance
      if (isNonProjectFilename(filename))
      {
         if (pAppLaunch->sendMessage(filename))
            return 0;
      }
      else
      {
         // try to register ourselves as a peer for others
         pAppLaunch->attemptToRegisterPeer();
      }

      // init options from command line
      desktop::options().initFromCommandLine(pApp->arguments());

      // reset log if we are in run-diagnostics mode
      if (desktop::options().runDiagnostics())
      {
         desktop::reattachConsoleIfNecessary();
         initializeStderrLog("rdesktop", core::system::kLogLevelWarning);
      }

      initializeSharedSecret();
      initializeWorkingDirectory(argc, argv, filename);
      initializeStartupEnvironment(&filename);

      Options& options = desktop::options();
      if (!prepareEnvironment(options))
         return 1;

      // get install path
      FilePath installPath;
      error = core::system::installPath("..", argv[0], &installPath);
      if (error)
      {
         LOG_ERROR(error);
         return EXIT_FAILURE;
      }

#ifdef _WIN32
      RVersion version = detectRVersion(false);
#endif

      // calculate paths to config file, rsession, and desktop scripts
      FilePath confPath, sessionPath, scriptsPath;
      bool devMode = false;

      // check for debug configuration
      FilePath currentPath = FilePath::safeCurrentPath(installPath);
      if (currentPath.complete("conf/rdesktop-dev.conf").exists())
      {
         confPath = currentPath.complete("conf/rdesktop-dev.conf");
         sessionPath = currentPath.complete("session/rsession");
         scriptsPath = currentPath.complete("desktop");
         devMode = true;
#ifdef _WIN32
         if (version.architecture() == ArchX64 &&
             installPath.complete("session/x64").exists())
         {
            sessionPath = installPath.complete("session/x64/rsession");
         }
#endif
      }

      // if there is no conf path then release mode
      if (confPath.empty())
      {
         // default paths (then tweak)
         sessionPath = installPath.complete("bin/rsession");
         scriptsPath = installPath.complete("bin");

         // check for win64 binary on windows
#ifdef _WIN32
         if (version.architecture() == ArchX64 &&
             installPath.complete("bin/x64").exists())
         {
            sessionPath = installPath.complete("bin/x64/rsession");
         }
#endif

         // check for running in a bundle on OSX
#ifdef __APPLE__
         if (installPath.complete("Info.plist").exists())
         {
            sessionPath = installPath.complete("MacOS/rsession");
            scriptsPath = installPath.complete("MacOS");
         }
#endif
      }
      core::system::fixupExecutablePath(&sessionPath);

      auto* pProxyFactory = new NetworkProxyFactory();
      QNetworkProxyFactory::setApplicationProxyFactory(pProxyFactory);

      // set the scripts path in options
      desktop::options().setScriptsPath(scriptsPath);

      // launch session
      SessionLauncher sessionLauncher(sessionPath, confPath, filename, pAppLaunch.get());
      sessionLauncher.launchFirstSession(installPath, devMode, pApp->arguments());

      ProgressActivator progressActivator;

      int result = pApp->exec();

      desktop::activation().releaseLicense();
      options.cleanUpScratchTempDir();

      return result;
   }
   CATCH_UNEXPECTED_EXCEPTION
}
Example #2
0
int main(int argc, char *argv[])
{
    int debugMode = DEBUGMODE;


    if(debugMode)
    {

    } else {
        qInstallMessageHandler(myMessageOutputDisable);

    }

    QDEBUG() << "number of arguments:" << argc;
    QStringList args;
    QDEBUGVAR(RAND_MAX);
    if(argc > 1) {
        QCoreApplication a(argc, argv);
        args = a.arguments();

        QDEBUGVAR(args);

        qRegisterMetaType<Packet>();



        QDEBUG() << "Running command line mode.";

        Packet sendPacket;
        sendPacket.init();
        QString outBuilder;

        QTextStream o(&outBuilder);


        QTextStream out(stdout);

        QDate vDate = QDate::fromString(QString(__DATE__).simplified(), "MMM d yyyy");
        QCoreApplication::setApplicationName("Packet Sender");
        QCoreApplication::setApplicationVersion("version " + vDate.toString("yyyy-MM-dd"));

        QCommandLineParser parser;
        parser.setApplicationDescription("Packet Sender is a Network TCP and UDP Test Utility by Dan Nagle\nSee http://PacketSender.com/ for more information.");
        parser.addHelpOption();
        parser.addVersionOption();

        // A boolean option with a single name (-p)
        QCommandLineOption quietOption(QStringList() << "q" << "quiet", "Quiet mode. Only output received data.");
        parser.addOption(quietOption);


        QCommandLineOption hexOption(QStringList() << "x" << "hex", "Parse data as hex (default).");
        parser.addOption(hexOption);

        QCommandLineOption asciiOption(QStringList() << "a" << "ascii", "Parse data as mixed-ascii (like the GUI).");
        parser.addOption(asciiOption);

        QCommandLineOption pureAsciiOption(QStringList() << "A" << "ASCII", "Parse data as pure ascii (no \\xx translation).");
        parser.addOption(pureAsciiOption);

        // An option with a value
        QCommandLineOption waitOption(QStringList() << "w" << "wait",
                "Wait up to <milliseconds> for a response after sending. Zero means do not wait (Default).",
                "milliseconds");
        parser.addOption(waitOption);

        // An option with a value
        QCommandLineOption fileOption(QStringList() << "f" << "file",
                "Send contents of specified path. Max 1024 for UDP, 10 MiB for TCP.",
                "path");
        parser.addOption(fileOption);


        // An option with a value
        QCommandLineOption bindPortOption(QStringList() << "b" << "bind",
                "Bind port. Default is 0 (dynamic).",
                "port");
        parser.addOption(bindPortOption);


        QCommandLineOption tcpOption(QStringList() << "t" << "tcp", "Send TCP (default).");
        parser.addOption(tcpOption);

        // A boolean option with multiple names (-f, --force)
        QCommandLineOption udpOption(QStringList() << "u" << "udp", "Send UDP.");
        parser.addOption(udpOption);

        // An option with a value
        QCommandLineOption nameOption(QStringList() << "n" << "name",
                                      "Send previously saved packet named <name>. Other options overrides saved packet parameters.",
                                      "name");
        parser.addOption(nameOption);


        parser.addPositionalArgument("address", "Destination address. Optional for saved packet.");
        parser.addPositionalArgument("port", "Destination port. Optional for saved packet.");
        parser.addPositionalArgument("data", "Data to send. Optional for saved packet.");


        // Process the actual command line arguments given by the user
        parser.process(a);

        const QStringList args = parser.positionalArguments();

        bool quiet = parser.isSet(quietOption);
        bool hex = parser.isSet(hexOption);
        bool mixedascii = parser.isSet(asciiOption);
        bool ascii = parser.isSet(pureAsciiOption);
        unsigned int wait = parser.value(waitOption).toUInt();
        unsigned int bind = parser.value(bindPortOption).toUInt();
        bool tcp = parser.isSet(tcpOption);
        bool udp = parser.isSet(udpOption);
        bool ipv6  = false;

        QString name = parser.value(nameOption);

        QString filePath = parser.value(fileOption);


        QString address = "";
        unsigned int port = 0;

        int argssize = args.size();
        QString data, dataString;
        data.clear();
        dataString.clear();
        if(argssize >= 1) {
            address = args[0];
        }
        if(argssize >= 2) {
            port = args[1].toUInt();
        }
        if(argssize >= 3) {
            data = (args[2]);
        }

        //check for invalid options..

        if(argssize > 3) {
            OUTIF() << "Warning: Extra parameters detected. Try surrounding your data with quotes.";
        }

        if(hex && mixedascii) {
            OUTIF() << "Warning: both hex and pure ascii set. Defaulting to hex.";
            mixedascii = false;
        }

        if(hex && ascii) {
            OUTIF() << "Warning: both hex and pure ascii set. Defaulting to hex.";
            ascii = false;
        }

        if(mixedascii && ascii) {
            OUTIF() << "Warning: both mixed ascii and pure ascii set. Defaulting to pure ascii.";
            mixedascii = false;
        }

        if(tcp && udp) {
            OUTIF() << "Warning: both TCP and UDP set. Defaulting to TCP.";
            udp = false;
        }

        if(!filePath.isEmpty() && !QFile::exists(filePath)) {
            OUTIF() << "Error: specified path "<< filePath <<" does not exist.";
            filePath.clear();
            OUTPUT();
            return -1;
        }

        //bind is now default 0

        if(!bind && parser.isSet(bindPortOption)) {
            OUTIF() << "Warning: Binding to port zero is dynamic.";
        }


        if(!port && name.isEmpty()) {
            OUTIF() << "Warning: Sending to port zero.";
        }

        //set default choices
        if(!hex && !ascii && !mixedascii) {
            hex = true;
        }

        if(!tcp && !udp) {
            tcp = true;
        }

        //Create the packet to send.
        if(!name.isEmpty()) {
            sendPacket = Packet::fetchFromDB(name);
            if(sendPacket.name.isEmpty()) {
                OUTIF() << "Error: Saved packet \""<< name <<"\" not found.";
                OUTPUT();
                return -1;
            } else {
                if(data.isEmpty()) {
                    data  = sendPacket.hexString;
                    hex = true;
                    ascii = false;
                    mixedascii = false;
                }
                if(!port) {
                    port  = sendPacket.port;
                }
                if(address.isEmpty()) {
                    address  = sendPacket.toIP;
                }
                if(!parser.isSet(tcpOption) && !parser.isSet(udpOption)) {

                    if(sendPacket.tcpOrUdp.toUpper() == "TCP") {
                        tcp=true;
                        udp = false;
                    } else {
                        tcp=false;
                        udp = true;
                    }

                }

            }

        }

        if(!parser.isSet(bindPortOption)) {
            bind = 0;
        }

        if(!filePath.isEmpty() && QFile::exists(filePath)) {
            QFile dataFile(filePath);
            if(dataFile.open(QFile::ReadOnly)) {

                if(tcp) {
                    QByteArray dataArray = dataFile.read(1024*1024*10);;
                    dataString = Packet::byteArrayToHex(dataArray);
                } else {

                    QByteArray dataArray = dataFile.read(1024);
                    dataString = Packet::byteArrayToHex(dataArray);
                }

                //data format is raw.
                ascii = 0;
                hex = 0;
                mixedascii = 0;

            }
        }



        QDEBUGVAR(argssize);
        QDEBUGVAR(quiet);
        QDEBUGVAR(hex);
        QDEBUGVAR(mixedascii);
        QDEBUGVAR(ascii);
        QDEBUGVAR(address);
        QDEBUGVAR(port);
        QDEBUGVAR(wait);
        QDEBUGVAR(bind);
        QDEBUGVAR(tcp);
        QDEBUGVAR(udp);
        QDEBUGVAR(name);
        QDEBUGVAR(data);
        QDEBUGVAR(filePath);

        //NOW LETS DO THIS!

        if(ascii) { //pure ascii
            dataString = Packet::byteArrayToHex(data.toLatin1());
        }

        if(hex) { //hex
            dataString = Packet::byteArrayToHex(Packet::HEXtoByteArray(data));
        }
        if(mixedascii) { //mixed ascii
            dataString = Packet::ASCIITohex(data);
        }

        if(dataString.isEmpty()) {
            OUTIF() << "Warning: No data to send. Is your formatting correct?";
        }

        QHostAddress addy;
        if(!addy.setAddress(address)) {
            QHostInfo info = QHostInfo::fromName(address);
            if (info.error() != QHostInfo::NoError)
            {
                OUTIF() << "Error: Could not resolve address:" + address;
                OUTPUT();
                return -1;
            } else {
                addy = info.addresses().at(0);
                address = addy.toString();
            }
        }

        QHostAddress theAddress(address);
        if (QAbstractSocket::IPv6Protocol == theAddress.protocol())
        {
           QDEBUG() << "Valid IPv6 address.";
           ipv6 = true;
        }


        QByteArray sendData = sendPacket.HEXtoByteArray(dataString);
        QByteArray recvData;
        recvData.clear();
        int bytesWriten = 0;
        int bytesRead = 0;


        if(tcp) {
            QTcpSocket sock;


            if(ipv6) {
                sock.bind(QHostAddress::AnyIPv6, bind);
            } else {
                sock.bind(QHostAddress::AnyIPv4, bind);
            }
            sock.connectToHost(addy, port);
            sock.waitForConnected(1000);
            if(sock.state() == QAbstractSocket::ConnectedState)
            {
                OUTIF() << "TCP (" <<sock.localPort() <<")://" << address << ":" << port << " " << dataString;
                bytesWriten = sock.write(sendData);
                sock.waitForBytesWritten(1000);
                //OUTIF() << "Sent:" << Packet::byteArrayToHex(sendData);
                if(wait) {
                    sock.waitForReadyRead(wait);
                    recvData = sock.readAll();
                    bytesRead = recvData.size();
                    QString hexString = Packet::byteArrayToHex(recvData);
                    if(quiet) {
                        o << "\n" << hexString;
                    } else {
                        o << "\nResponse Time:" << QDateTime::currentDateTime().toString(DATETIMEFORMAT);
                        o << "\nResponse HEX:" << hexString;
                        o << "\nResponse ASCII:" << Packet::hexToASCII(hexString);
                    }
                }
                sock.disconnectFromHost();
                sock.waitForDisconnected(1000);
                sock.close();

                OUTPUT();
                return bytesWriten;


            } else {
                OUTIF() << "Error: Failed to connect to " << address;

                OUTPUT();
                return -1;
            }


        } else {
            QUdpSocket sock;
            if(ipv6) {
                if(!sock.bind(QHostAddress::AnyIPv6, bind)) {
                    OUTIF() << "Error: Could not bind to " << bind;

                    OUTPUT();
                    return -1;
                }

            } else {
                if(!sock.bind(QHostAddress::AnyIPv4, bind)) {
                    OUTIF() << "Error: Could not bind to " << bind;

                    OUTPUT();
                    return -1;
                }

            }
            OUTIF() << "UDP (" <<sock.localPort() <<")://" << address << ":" << port << " " << dataString;

            bytesWriten = sock.writeDatagram(sendData, addy, port);
            //OUTIF() << "Wrote " << bytesWriten << " bytes";
            sock.waitForBytesWritten(1000);

            if(wait) {
                sock.waitForReadyRead(wait);

                if(sock.hasPendingDatagrams()) {
                    QHostAddress sender;
                    quint16 senderPort;
                    recvData.resize(sock.pendingDatagramSize());

                    sock.readDatagram(recvData.data(), recvData.size(),
                                            &sender, &senderPort);

                    QString hexString = Packet::byteArrayToHex(recvData);
                    if(quiet) {
                        o << "\n" << hexString;
                    } else {
                        o << "\nResponse Time:" << QDateTime::currentDateTime().toString(DATETIMEFORMAT);
                        o << "\nResponse HEX:" << hexString;
                        o << "\nResponse ASCII:" << Packet::hexToASCII(hexString);
                    }
                }
            }

            sock.close();

            OUTPUT();
            return bytesWriten;

        }





        OUTPUT();



    } else {
        QApplication a(argc, argv);

        QDEBUGVAR(args);

        qRegisterMetaType<Packet>();

        QFile file(":/packetsender.css");
        if(file.open(QFile::ReadOnly)) {
           QString StyleSheet = QLatin1String(file.readAll());
         //  qDebug() << "stylesheet: " << StyleSheet;
           a.setStyleSheet(StyleSheet);
        }

        MainWindow w;


        w.show();

        return a.exec();

    }



    return 0;

}
Example #3
0
int main(int argc, char * argv[])
{
    /*
     * Before starting main application, need to set 'QT_X11_NO_MITSHM=1'
     * to make the runtime work with IBM PPC machine.
     */
#if defined (Q_OS_LINUX)
    QByteArray val("1");
    qputenv("QT_X11_NO_MITSHM", val);
#endif

    // Create the QT application
    QApplication app(argc, argv);
    app.setQuitOnLastWindowClosed(false);

    // Setup the settings management
    QCoreApplication::setOrganizationName("pgadmin");
    QCoreApplication::setOrganizationDomain("pgadmin.org");
    QCoreApplication::setApplicationName(PGA_APP_NAME.toLower().replace(" ", ""));

#if QT_VERSION >= 0x050000
    // Set high DPI pixmap to display icons clear on Qt widget.
    QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
#endif

    // Create a hash of the executable path so we can run copies side-by-side
    QString homeDir = QDir::homePath();
    unsigned long exeHash = sdbm((unsigned char *)argv[0]);

    // Create the address file, that will be used to store the appserver URL for this instance
    addrFileName = homeDir + (QString("/.%1.%2.addr").arg(PGA_APP_NAME).arg(exeHash)).remove(" ");
    QFile addrFile(addrFileName);

    // Create a system-wide semaphore keyed by app name, exe hash and the username
    // to ensure instances are unique to the user and path
    QString userName = qgetenv("USER"); // *nix
    if (userName.isEmpty())
        userName = qgetenv("USERNAME"); // Windows

    QString semaName = QString("%1-%2-%3-sema").arg(PGA_APP_NAME).arg(userName).arg(exeHash);
    QString shmemName = QString("%1-%2-%3-shmem").arg(PGA_APP_NAME).arg(userName).arg(exeHash);

    QSystemSemaphore sema(semaName, 1);
    sema.acquire();

#ifndef Q_OS_WIN32
    // We may need to clean up stale shmem segments on *nix. Attaching and detaching
    // should remove the segment if it is orphaned.
    QSharedMemory stale_shmem(shmemName);
    if (stale_shmem.attach())
        stale_shmem.detach();
#endif

    QSharedMemory shmem(shmemName);
    bool is_running;
    if (shmem.attach())
    {
        is_running = true;
    }
    else
    {
        shmem.create(1);
        is_running = false;
    }
    sema.release();

    QSettings settings;

    if (is_running){
        addrFile.open(QIODevice::ReadOnly | QIODevice::Text);
        QTextStream in(&addrFile);
        QString addr = in.readLine();

        QString cmd = settings.value("BrowserCommand").toString();

        if (!cmd.isEmpty())
        {
            cmd.replace("%URL%", addr);
            QProcess::startDetached(cmd);
        }
        else
        {
            if (!QDesktopServices::openUrl(addr))
            {
                QString error(QWidget::tr("Failed to open the system default web browser. Is one installed?."));
                QMessageBox::critical(NULL, QString(QWidget::tr("Fatal Error")), error);

                exit(1);
            }
        }

        return 0;
    }

    atexit(cleanup);

    // In windows and linux, it is required to set application level proxy
    // because socket bind logic to find free port gives socket creation error
    // when system proxy is configured. We are also setting
    // "setUseSystemConfiguration"=true to use the system proxy which will
    // override this application level proxy. As this bug is fixed in Qt 5.9 so
    // need to set application proxy for Qt version < 5.9.
    //
#if defined (Q_OS_WIN) && QT_VERSION <= 0x050800
    // Give dummy URL required to find proxy server configured in windows.
    QNetworkProxyQuery proxyQuery(QUrl("https://www.pgadmin.org"));
    QNetworkProxy l_proxy;
    QList<QNetworkProxy> listOfProxies = QNetworkProxyFactory::systemProxyForQuery(proxyQuery);

    if (listOfProxies.size())
    {
        l_proxy = listOfProxies[0];

        // If host name is not empty means proxy server is configured.
        if (!l_proxy.hostName().isEmpty()) {
            QNetworkProxy::setApplicationProxy(QNetworkProxy());
        }
    }
#endif

#if defined (Q_OS_LINUX) && QT_VERSION <= 0x050800
    QByteArray proxy_env;
    proxy_env = qgetenv("http_proxy");
    // If http_proxy environment is defined in linux then proxy server is configured.
    if (!proxy_env.isEmpty()) {
        QNetworkProxy::setApplicationProxy(QNetworkProxy());
    }
#endif

    // Display the spash screen
    QSplashScreen *splash = new QSplashScreen();
    splash->setPixmap(QPixmap(":/splash.png"));
    splash->show();
    app.processEvents(QEventLoop::AllEvents);

    quint16 port = 0L;

    // Find an unused port number. Essentially, we're just reserving one
    // here that Flask will use when we start up the server.
    // In order to use the socket, we need to free this socket ASAP.
    // Hence - putting this code in a code block so the scope of the socket
    // variable vanishes to make that socket available.
    {
#if QT_VERSION >= 0x050000
        QTcpSocket socket;

        #if QT_VERSION >= 0x050900
        socket.setProxy(QNetworkProxy::NoProxy);
        #endif

        socket.bind(0, QTcpSocket::ShareAddress);
#else
        QUdpSocket socket;
        socket.bind(0, QUdpSocket::ShareAddress);
#endif
        port = socket.localPort();
    }

    // Generate a random key to authenticate the client to the server
    QString key = QUuid::createUuid().toString();
    key = key.mid(1, key.length() - 2);

    // Generate the filename for the log
    logFileName = homeDir + (QString("/.%1.%2.log").arg(PGA_APP_NAME).arg(exeHash)).remove(" ");

    // Start the tray service
    TrayIcon *trayicon = new TrayIcon(logFileName);

    if (!trayicon->Init())
    {
        QString error = QString(QWidget::tr("An error occurred initialising the tray icon"));
        QMessageBox::critical(NULL, QString(QWidget::tr("Fatal Error")), error);

        exit(1);
    }

    // Fire up the webserver
    Server *server;

    bool done = false;

    while (done != true)
    {
        server = new Server(port, key, logFileName);

        if (!server->Init())
        {
            splash->finish(NULL);

            qDebug() << server->getError();

            QString error = QString(QWidget::tr("An error occurred initialising the application server:\n\n%1")).arg(server->getError());
            QMessageBox::critical(NULL, QString(QWidget::tr("Fatal Error")), error);

            exit(1);
        }

        server->start();

        // This is a hack to give the server a chance to start and potentially fail. As
        // the Python interpreter is a synchronous call, we can't check for proper startup
        // easily in a more robust way - we have to rely on a clean startup not returning.
        // It should always fail pretty quickly, and take longer to start if it succeeds, so
        // we don't really get a visible delay here.
        delay(1000);

        // Any errors?
        if (server->isFinished() || server->getError().length() > 0)
        {
            splash->finish(NULL);

            qDebug() << server->getError();

            QString error = QString(QWidget::tr("An error occurred initialising the application server:\n\n%1")).arg(server->getError());
            QMessageBox::critical(NULL, QString(QWidget::tr("Fatal Error")), error);

            // Allow the user to tweak the Python Path if needed
            bool ok;

            ConfigWindow *dlg = new ConfigWindow();
            dlg->setWindowTitle(QWidget::tr("Configuration"));
            dlg->setBrowserCommand(settings.value("BrowserCommand").toString());
            dlg->setPythonPath(settings.value("PythonPath").toString());
            dlg->setApplicationPath(settings.value("ApplicationPath").toString());
            dlg->setModal(true);
            ok = dlg->exec();

            QString browsercommand = dlg->getBrowserCommand();
            QString pythonpath = dlg->getPythonPath();
            QString applicationpath = dlg->getApplicationPath();

            if (ok)
            {
                settings.setValue("BrowserCommand", browsercommand);
                settings.setValue("PythonPath", pythonpath);
                settings.setValue("ApplicationPath", applicationpath);
                settings.sync();
            }
            else
            {
                exit(1);
            }

            delete server;
        }
        else
            done = true;
    }

    // Ensure the server gets cleaned up later
    QObject::connect(server, SIGNAL(finished()), server, SLOT(deleteLater()));

    // Generate the app server URL
    QString appServerUrl = QString("http://127.0.0.1:%1/?key=%2").arg(port).arg(key);

    // Read the server connection timeout from the registry or set the default timeout.
    int timeout = settings.value("ConnectionTimeout", 30).toInt();

    // Now the server should be up, we'll attempt to connect and get a response.
    // We'll retry in a loop a few time before aborting if necessary.

    QTime endTime = QTime::currentTime().addSecs(timeout);
    bool alive = false;

    while(QTime::currentTime() <= endTime)
    {
        alive = PingServer(QUrl(appServerUrl));

        if (alive)
        {
            break;
        }

        delay(200);
    }

    // Attempt to connect one more time in case of a long network timeout while looping
    if (!alive && !PingServer(QUrl(appServerUrl)))
    {
        splash->finish(NULL);
        QString error(QWidget::tr("The application server could not be contacted."));
        QMessageBox::critical(NULL, QString(QWidget::tr("Fatal Error")), error);

        exit(1);
    }

    // Stash the URL for any duplicate processes to open
    if (addrFile.open(QIODevice::WriteOnly))
    {
        addrFile.setPermissions(QFile::ReadOwner|QFile::WriteOwner);
        QTextStream out(&addrFile);
        out << appServerUrl << endl;
    }

    // Go!
    trayicon->setAppServerUrl(appServerUrl);
    // Enable the shutdown server menu as server started successfully.
    trayicon->enableShutdownMenu();

    QString cmd = settings.value("BrowserCommand").toString();

    if (!cmd.isEmpty())
    {
        cmd.replace("%URL%", appServerUrl);
        QProcess::startDetached(cmd);
    }
    else
    {
        if (!QDesktopServices::openUrl(appServerUrl))
        {
            QString error(QWidget::tr("Failed to open the system default web browser. Is one installed?."));
            QMessageBox::critical(NULL, QString(QWidget::tr("Fatal Error")), error);

            exit(1);
        }
    }

    QObject::connect(trayicon, SIGNAL(shutdownSignal(QUrl)), server, SLOT(shutdown(QUrl)));

    splash->finish(NULL);

    return app.exec();
}