mirror of
https://github.com/jellyfin/jellyfin.git
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528 lines
17 KiB
C#
528 lines
17 KiB
C#
using MediaBrowser.Common.Configuration;
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using MediaBrowser.Common.Constants;
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using MediaBrowser.Common.Implementations.Logging;
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using MediaBrowser.Common.Implementations.Updates;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Server.Implementations;
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using MediaBrowser.ServerApplication.Native;
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using Microsoft.Win32;
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using System;
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using System.Configuration.Install;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.ServiceProcess;
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using System.Windows;
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namespace MediaBrowser.ServerApplication
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{
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public class MainStartup
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{
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private static ApplicationHost _appHost;
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private static App _app;
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private static ILogger _logger;
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private static bool _isRunningAsService = false;
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/// <summary>
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/// Defines the entry point of the application.
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/// </summary>
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[STAThread]
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public static void Main()
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{
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var startFlag = Environment.GetCommandLineArgs().ElementAtOrDefault(1);
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_isRunningAsService = string.Equals(startFlag, "-service", StringComparison.OrdinalIgnoreCase);
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var applicationPath = Process.GetCurrentProcess().MainModule.FileName;
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var appPaths = CreateApplicationPaths(applicationPath, _isRunningAsService);
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var logManager = new NlogManager(appPaths.LogDirectoryPath, "server");
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logManager.ReloadLogger(LogSeverity.Debug);
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var logger = _logger = logManager.GetLogger("Main");
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BeginLog(logger, appPaths);
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// Install directly
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if (string.Equals(startFlag, "-installservice", StringComparison.OrdinalIgnoreCase))
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{
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logger.Info("Performing service installation");
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InstallService(applicationPath, logger);
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return;
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}
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// Restart with admin rights, then install
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if (string.Equals(startFlag, "-installserviceasadmin", StringComparison.OrdinalIgnoreCase))
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{
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logger.Info("Performing service installation");
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RunServiceInstallation(applicationPath);
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return;
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}
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// Uninstall directly
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if (string.Equals(startFlag, "-uninstallservice", StringComparison.OrdinalIgnoreCase))
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{
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logger.Info("Performing service uninstallation");
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UninstallService(applicationPath, logger);
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return;
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}
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// Restart with admin rights, then uninstall
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if (string.Equals(startFlag, "-uninstallserviceasadmin", StringComparison.OrdinalIgnoreCase))
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{
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logger.Info("Performing service uninstallation");
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RunServiceUninstallation(applicationPath);
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return;
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}
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AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
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RunServiceInstallationIfNeeded(applicationPath);
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var currentProcess = Process.GetCurrentProcess();
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if (IsAlreadyRunning(applicationPath, currentProcess))
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{
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logger.Info("Shutting down because another instance of Media Browser Server is already running.");
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return;
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}
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if (PerformUpdateIfNeeded(appPaths, logger))
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{
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logger.Info("Exiting to perform application update.");
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return;
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}
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try
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{
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RunApplication(appPaths, logManager, _isRunningAsService);
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}
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finally
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{
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OnServiceShutdown();
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}
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}
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/// <summary>
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/// Determines whether [is already running] [the specified current process].
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/// </summary>
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/// <param name="currentProcess">The current process.</param>
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/// <returns><c>true</c> if [is already running] [the specified current process]; otherwise, <c>false</c>.</returns>
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private static bool IsAlreadyRunning(string applicationPath, Process currentProcess)
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{
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var duplicate = Process.GetProcesses().FirstOrDefault(i =>
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{
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try
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{
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return string.Equals(applicationPath, i.MainModule.FileName) && currentProcess.Id != i.Id;
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}
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catch (Exception)
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{
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return false;
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}
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});
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if (duplicate != null)
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{
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_logger.Info("Found a duplicate process. Giving it time to exit.");
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if (!duplicate.WaitForExit(5000))
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{
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_logger.Info("The duplicate process did not exit.");
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return true;
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}
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}
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return false;
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}
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/// <summary>
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/// Creates the application paths.
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/// </summary>
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/// <param name="runAsService">if set to <c>true</c> [run as service].</param>
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/// <returns>ServerApplicationPaths.</returns>
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private static ServerApplicationPaths CreateApplicationPaths(string applicationPath, bool runAsService)
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{
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if (runAsService)
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{
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var systemPath = Path.GetDirectoryName(applicationPath);
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var programDataPath = Path.GetDirectoryName(systemPath);
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return new ServerApplicationPaths(programDataPath, applicationPath);
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}
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return new ServerApplicationPaths(applicationPath);
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}
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/// <summary>
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/// Gets a value indicating whether this instance can self restart.
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/// </summary>
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/// <value><c>true</c> if this instance can self restart; otherwise, <c>false</c>.</value>
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public static bool CanSelfRestart
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{
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get
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{
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return !_isRunningAsService;
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}
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}
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/// <summary>
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/// Gets a value indicating whether this instance can self update.
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/// </summary>
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/// <value><c>true</c> if this instance can self update; otherwise, <c>false</c>.</value>
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public static bool CanSelfUpdate
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{
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get
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{
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return !_isRunningAsService;
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}
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}
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/// <summary>
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/// Begins the log.
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/// </summary>
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/// <param name="logger">The logger.</param>
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/// <param name="appPaths">The app paths.</param>
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private static void BeginLog(ILogger logger, IApplicationPaths appPaths)
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{
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logger.Info("Media Browser Server started");
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logger.Info("Command line: {0}", string.Join(" ", Environment.GetCommandLineArgs()));
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logger.Info("Server: {0}", Environment.MachineName);
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logger.Info("Operating system: {0}", Environment.OSVersion.ToString());
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logger.Info("Program data path: {0}", appPaths.ProgramDataPath);
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logger.Info("Application Path: {0}", appPaths.ApplicationPath);
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}
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/// <summary>
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/// Runs the application.
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/// </summary>
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/// <param name="appPaths">The app paths.</param>
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/// <param name="logManager">The log manager.</param>
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/// <param name="runService">if set to <c>true</c> [run service].</param>
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private static void RunApplication(ServerApplicationPaths appPaths, ILogManager logManager, bool runService)
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{
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SystemEvents.SessionEnding += SystemEvents_SessionEnding;
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SystemEvents.SessionSwitch += SystemEvents_SessionSwitch;
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_appHost = new ApplicationHost(appPaths, logManager);
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_app = new App(_appHost, _appHost.LogManager.GetLogger("App"), runService);
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if (runService)
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{
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_app.AppStarted += (sender, args) => StartService(logManager);
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}
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else
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{
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// Not crazy about this but it's the only way to suppress ffmpeg crash dialog boxes
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SetErrorMode(ErrorModes.SEM_FAILCRITICALERRORS | ErrorModes.SEM_NOALIGNMENTFAULTEXCEPT |
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ErrorModes.SEM_NOGPFAULTERRORBOX | ErrorModes.SEM_NOOPENFILEERRORBOX);
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}
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_app.Run();
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}
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static void SystemEvents_SessionSwitch(object sender, SessionSwitchEventArgs e)
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{
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if (e.Reason == SessionSwitchReason.SessionLogon)
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{
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BrowserLauncher.OpenDashboard(_appHost.UserManager, _appHost.ServerConfigurationManager, _appHost, _logger);
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}
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}
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/// <summary>
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/// Starts the service.
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/// </summary>
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private static void StartService(ILogManager logManager)
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{
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var service = new BackgroundService(logManager.GetLogger("Service"));
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service.Disposed += service_Disposed;
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ServiceBase.Run(service);
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}
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/// <summary>
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/// Handles the Disposed event of the service control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
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static void service_Disposed(object sender, EventArgs e)
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{
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OnServiceShutdown();
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}
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private static void OnServiceShutdown()
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{
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_logger.Info("Shutting down");
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_appHost.Dispose();
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if (!_isRunningAsService)
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{
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SetErrorMode(ErrorModes.SYSTEM_DEFAULT);
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}
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_app.Dispatcher.Invoke(_app.Shutdown);
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}
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/// <summary>
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/// Installs the service.
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/// </summary>
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private static void InstallService(string applicationPath, ILogger logger)
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{
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try
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{
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ManagedInstallerClass.InstallHelper(new[] { applicationPath });
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logger.Info("Service installation succeeded");
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}
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catch (Exception ex)
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{
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logger.ErrorException("Uninstall failed", ex);
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}
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}
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/// <summary>
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/// Uninstalls the service.
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/// </summary>
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private static void UninstallService(string applicationPath, ILogger logger)
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{
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try
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{
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ManagedInstallerClass.InstallHelper(new[] { "/u", applicationPath });
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logger.Info("Service uninstallation succeeded");
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}
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catch (Exception ex)
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{
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logger.ErrorException("Uninstall failed", ex);
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}
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}
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private static void RunServiceInstallationIfNeeded(string applicationPath)
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{
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var ctl = ServiceController.GetServices().FirstOrDefault(s => s.ServiceName == BackgroundService.Name);
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if (ctl == null)
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{
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RunServiceInstallation(applicationPath);
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}
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}
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/// <summary>
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/// Runs the service installation.
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/// </summary>
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private static void RunServiceInstallation(string applicationPath)
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{
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var startInfo = new ProcessStartInfo
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{
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FileName = applicationPath,
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Arguments = "-installservice",
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CreateNoWindow = true,
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WindowStyle = ProcessWindowStyle.Hidden,
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Verb = "runas",
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ErrorDialog = false
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};
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using (var process = Process.Start(startInfo))
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{
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process.WaitForExit();
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}
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}
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/// <summary>
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/// Runs the service uninstallation.
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/// </summary>
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private static void RunServiceUninstallation(string applicationPath)
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{
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var startInfo = new ProcessStartInfo
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{
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FileName = applicationPath,
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Arguments = "-uninstallservice",
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CreateNoWindow = true,
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WindowStyle = ProcessWindowStyle.Hidden,
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Verb = "runas",
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ErrorDialog = false
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};
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using (var process = Process.Start(startInfo))
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{
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process.WaitForExit();
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}
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}
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/// <summary>
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/// Handles the SessionEnding event of the SystemEvents control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="SessionEndingEventArgs"/> instance containing the event data.</param>
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static void SystemEvents_SessionEnding(object sender, SessionEndingEventArgs e)
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{
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if (e.Reason == SessionEndReasons.SystemShutdown || !_isRunningAsService)
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{
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Shutdown();
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}
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}
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/// <summary>
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/// Handles the UnhandledException event of the CurrentDomain control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="UnhandledExceptionEventArgs"/> instance containing the event data.</param>
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static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
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{
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var exception = (Exception)e.ExceptionObject;
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LogUnhandledException(exception);
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_appHost.LogManager.Flush();
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if (!_isRunningAsService)
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{
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_app.OnUnhandledException(exception);
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}
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if (!Debugger.IsAttached)
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{
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Environment.Exit(Marshal.GetHRForException(exception));
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}
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}
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private static void LogUnhandledException(Exception ex)
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{
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_logger.ErrorException("UnhandledException", ex);
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var path = Path.Combine(_appHost.ServerConfigurationManager.ApplicationPaths.LogDirectoryPath, "unhandled_" + Guid.NewGuid() + ".txt");
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var builder = LogHelper.GetLogMessage(ex);
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File.WriteAllText(path, builder.ToString());
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}
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/// <summary>
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/// Performs the update if needed.
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/// </summary>
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/// <param name="appPaths">The app paths.</param>
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/// <param name="logger">The logger.</param>
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/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
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private static bool PerformUpdateIfNeeded(ServerApplicationPaths appPaths, ILogger logger)
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{
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// Look for the existence of an update archive
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var updateArchive = Path.Combine(appPaths.TempUpdatePath, Constants.MbServerPkgName + ".zip");
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if (File.Exists(updateArchive))
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{
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logger.Info("An update is available from {0}", updateArchive);
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// Update is there - execute update
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try
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{
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var serviceName = _isRunningAsService ? BackgroundService.Name : string.Empty;
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new ApplicationUpdater().UpdateApplication(MBApplication.MBServer, appPaths, updateArchive, logger, serviceName);
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// And just let the app exit so it can update
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return true;
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}
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catch (Exception e)
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{
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logger.ErrorException("Error starting updater.", e);
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MessageBox.Show(string.Format("Error attempting to update application.\n\n{0}\n\n{1}", e.GetType().Name, e.Message));
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}
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}
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return false;
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}
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public static void Shutdown()
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{
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if (_isRunningAsService)
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{
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ShutdownWindowsService();
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}
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else
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{
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ShutdownWindowsApplication();
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}
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}
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public static void Restart()
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{
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_logger.Info("Disposing app host");
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_appHost.Dispose();
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if (!_isRunningAsService)
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{
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_logger.Info("Executing windows forms restart");
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System.Windows.Forms.Application.Restart();
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ShutdownWindowsApplication();
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}
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}
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private static void ShutdownWindowsApplication()
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{
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_app.Dispatcher.Invoke(_app.Shutdown);
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}
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private static void ShutdownWindowsService()
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{
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_logger.Info("Stopping background service");
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var service = new ServiceController(BackgroundService.Name);
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service.Refresh();
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if (service.Status == ServiceControllerStatus.Running)
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{
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service.Stop();
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}
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}
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/// <summary>
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/// Sets the error mode.
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/// </summary>
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/// <param name="uMode">The u mode.</param>
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/// <returns>ErrorModes.</returns>
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[DllImport("kernel32.dll")]
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static extern ErrorModes SetErrorMode(ErrorModes uMode);
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/// <summary>
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/// Enum ErrorModes
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/// </summary>
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[Flags]
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public enum ErrorModes : uint
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{
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/// <summary>
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/// The SYSTE m_ DEFAULT
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/// </summary>
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SYSTEM_DEFAULT = 0x0,
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/// <summary>
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/// The SE m_ FAILCRITICALERRORS
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/// </summary>
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SEM_FAILCRITICALERRORS = 0x0001,
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/// <summary>
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/// The SE m_ NOALIGNMENTFAULTEXCEPT
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/// </summary>
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SEM_NOALIGNMENTFAULTEXCEPT = 0x0004,
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/// <summary>
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/// The SE m_ NOGPFAULTERRORBOX
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/// </summary>
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SEM_NOGPFAULTERRORBOX = 0x0002,
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/// <summary>
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/// The SE m_ NOOPENFILEERRORBOX
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/// </summary>
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SEM_NOOPENFILEERRORBOX = 0x8000
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}
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}
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}
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