support run as service

MediaBrowser.ServerApplication/MainStartup.cs

@@ -1,12 +1,18 @@
 using MediaBrowser.Common.Constants;
+using MediaBrowser.Common.Implementations.Logging;
 using MediaBrowser.Common.Implementations.Updates;
+using MediaBrowser.Model.Logging;
 using MediaBrowser.Server.Implementations;
+using Microsoft.Win32;
 using System;
+using System.Configuration.Install;
 using System.Diagnostics;
 using System.IO;
+using System.Linq;
+using System.ServiceProcess;
 using System.Threading;
+using System.Threading.Tasks;
 using System.Windows;
-using Microsoft.Win32;
 
 namespace MediaBrowser.ServerApplication
 {
@@ -17,7 +23,9 @@ namespace MediaBrowser.ServerApplication
         /// </summary>
         private static Mutex _singleInstanceMutex;
 
-        private static IApplicationInterface _applicationInterface;
+        private static ApplicationHost _appHost;
+
+        private static App _app;
 
         /// <summary>
         /// Defines the entry point of the application.
@@ -25,6 +33,50 @@ namespace MediaBrowser.ServerApplication
         [STAThread]
         public static void Main()
         {
+            var startFlag = Environment.GetCommandLineArgs().ElementAtOrDefault(1);
+            var runService = string.Equals(startFlag, "-service", StringComparison.OrdinalIgnoreCase);
+
+            var appPaths = CreateApplicationPaths(runService);
+
+            var logManager = new NlogManager(appPaths.LogDirectoryPath, "server");
+            logManager.ReloadLogger(LogSeverity.Info);
+
+            var logger = logManager.GetLogger("Main");
+
+            BeginLog(logger);
+
+            // Install directly
+            if (string.Equals(startFlag, "-installservice", StringComparison.OrdinalIgnoreCase))
+            {
+                logger.Info("Performing service installation");
+                InstallService(logger);
+                return;
+            }
+
+            // Restart with admin rights, then install
+            if (string.Equals(startFlag, "-launchinstallservice", StringComparison.OrdinalIgnoreCase))
+            {
+                logger.Info("Performing service installation");
+                RunServiceInstallation();
+                return;
+            }
+
+            // Uninstall directly
+            if (string.Equals(startFlag, "-uninstallservice", StringComparison.OrdinalIgnoreCase))
+            {
+                logger.Info("Performing service uninstallation");
+                UninstallService(logger);
+                return;
+            }
+
+            // Restart with admin rights, then uninstall
+            if (string.Equals(startFlag, "-launchuninstallservice", StringComparison.OrdinalIgnoreCase))
+            {
+                logger.Info("Performing service uninstallation");
+                RunServiceUninstallation();
+                return;
+            }
+
             AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
 
             bool createdNew;
@@ -36,78 +88,228 @@ namespace MediaBrowser.ServerApplication
             if (!createdNew)
             {
                 _singleInstanceMutex = null;
+                logger.Info("Shutting down because another instance of Media Browser Server is already running.");
                 return;
             }
 
-            // Look for the existence of an update archive
-            var appPaths = new ServerApplicationPaths();
-            var updateArchive = Path.Combine(appPaths.TempUpdatePath, Constants.MbServerPkgName + ".zip");
-            if (File.Exists(updateArchive))
+            if (PerformUpdateIfNeeded(appPaths, logger))
             {
-                // Update is there - execute update
-                try
-                {
-                    new ApplicationUpdater().UpdateApplication(MBApplication.MBServer, appPaths, updateArchive);
-
-                    // And just let the app exit so it can update
-                    return;
-                }
-                catch (Exception e)
-                {
-                    MessageBox.Show(string.Format("Error attempting to update application.\n\n{0}\n\n{1}", e.GetType().Name, e.Message));
-                }
+                logger.Info("Exiting to perform application update.");
+                return;
             }
 
-            StartApplication();
+            try
+            {
+                RunApplication(appPaths, logManager, runService);
+            }
+            finally
+            {
+                logger.Info("Shutting down");
+
+                ReleaseMutex(logger);
+
+                _appHost.Dispose();
+            }
         }
 
-        private static void StartApplication()
+        /// <summary>
+        /// Creates the application paths.
+        /// </summary>
+        /// <param name="runAsService">if set to <c>true</c> [run as service].</param>
+        /// <returns>ServerApplicationPaths.</returns>
+        private static ServerApplicationPaths CreateApplicationPaths(bool runAsService)
+        {
+            if (runAsService)
+            {
+#if (RELEASE)
+                var systemPath = Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName);
+
+                var programDataPath = Path.GetDirectoryName(systemPath);
+
+                return new ServerApplicationPaths(programDataPath);
+#endif
+            }
+
+            return new ServerApplicationPaths();
+        }
+
+        /// <summary>
+        /// Begins the log.
+        /// </summary>
+        /// <param name="logger">The logger.</param>
+        private static void BeginLog(ILogger logger)
+        {
+            logger.Info("Media Browser Server started");
+            logger.Info("Command line: {0}", string.Join(" ", Environment.GetCommandLineArgs()));
+
+            logger.Info("Server: {0}", Environment.MachineName);
+            logger.Info("Operating system: {0}", Environment.OSVersion.ToString());
+        }
+
+        /// <summary>
+        /// Runs the application.
+        /// </summary>
+        /// <param name="appPaths">The app paths.</param>
+        /// <param name="logManager">The log manager.</param>
+        /// <param name="runService">if set to <c>true</c> [run service].</param>
+        private static void RunApplication(ServerApplicationPaths appPaths, ILogManager logManager, bool runService)
         {
             SystemEvents.SessionEnding += SystemEvents_SessionEnding;
+
             var commandLineArgs = Environment.GetCommandLineArgs();
 
-            if (commandLineArgs.Length > 1 && commandLineArgs[1].Equals("-service"))
+            _appHost = new ApplicationHost(appPaths, logManager);
+
+            _app = new App(_appHost, _appHost.LogManager.GetLogger("App"), runService);
+
+            if (runService)
             {
-                // Start application as a service
-                StartBackgroundService();
+                _app.AppStarted += (sender, args) => StartService(logManager);
             }
-            else
+
+            _app.Run();
+        }
+
+        /// <summary>
+        /// Starts the service.
+        /// </summary>
+        private static void StartService(ILogManager logManager)
+        {
+            var ctl = ServiceController.GetServices().FirstOrDefault(s => s.ServiceName == BackgroundService.Name);
+
+            if (ctl == null)
             {
-                StartWpfApp();
+                RunServiceInstallation();
+            }
+
+            var service = new BackgroundService(logManager.GetLogger("Service"));
+
+            service.Disposed += service_Disposed;
+
+            ServiceBase.Run(service);
+        }
+
+        /// <summary>
+        /// Handles the Disposed event of the service control.
+        /// </summary>
+        /// <param name="sender">The source of the event.</param>
+        /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
+        static async void service_Disposed(object sender, EventArgs e)
+        {
+            await _appHost.Shutdown();
+        }
+
+        /// <summary>
+        /// Installs the service.
+        /// </summary>
+        private static void InstallService(ILogger logger)
+        {
+            var runningPath = Process.GetCurrentProcess().MainModule.FileName;
+
+            try
+            {
+                ManagedInstallerClass.InstallHelper(new[] { runningPath });
+
+                logger.Info("Service installation succeeded");
+            }
+            catch (Exception ex)
+            {
+                logger.ErrorException("Uninstall failed", ex);
             }
         }
 
+        /// <summary>
+        /// Uninstalls the service.
+        /// </summary>
+        private static void UninstallService(ILogger logger)
+        {
+            var runningPath = Process.GetCurrentProcess().MainModule.FileName;
+
+            try
+            {
+                ManagedInstallerClass.InstallHelper(new[] { "/u", runningPath });
+
+                logger.Info("Service uninstallation succeeded");
+            }
+            catch (Exception ex)
+            {
+                logger.ErrorException("Uninstall failed", ex);
+            }
+        }
+
+        /// <summary>
+        /// Runs the service installation.
+        /// </summary>
+        private static void RunServiceInstallation()
+        {
+            var runningPath = Process.GetCurrentProcess().MainModule.FileName;
+
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = runningPath,
+
+                Arguments = "-installservice",
+
+                CreateNoWindow = true,
+                WindowStyle = ProcessWindowStyle.Hidden,
+                Verb = "runas",
+                ErrorDialog = false
+            };
+
+            using (var process = Process.Start(startInfo))
+            {
+                process.WaitForExit();
+            }
+        }
+
+        /// <summary>
+        /// Runs the service uninstallation.
+        /// </summary>
+        private static void RunServiceUninstallation()
+        {
+            var runningPath = Process.GetCurrentProcess().MainModule.FileName;
+
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = runningPath,
+
+                Arguments = "-uninstallservice",
+
+                CreateNoWindow = true,
+                WindowStyle = ProcessWindowStyle.Hidden,
+                Verb = "runas",
+                ErrorDialog = false
+            };
+
+            using (var process = Process.Start(startInfo))
+            {
+                process.WaitForExit();
+            }
+        }
+
+        /// <summary>
+        /// Handles the SessionEnding event of the SystemEvents control.
+        /// </summary>
+        /// <param name="sender">The source of the event.</param>
+        /// <param name="e">The <see cref="SessionEndingEventArgs"/> instance containing the event data.</param>
         static void SystemEvents_SessionEnding(object sender, SessionEndingEventArgs e)
         {
             // Try to shutdown gracefully
-            if (_applicationInterface != null)
-            {
-                _applicationInterface.ShutdownApplication();
-            }
-        }
-
-        private static void StartWpfApp()
-        {
-            var app = new App();
-
-            _applicationInterface = app;
-
-            app.Run();
-        }
-
-        private static void StartBackgroundService()
-        {
-
+            var task = _appHost.Shutdown();
+
+            Task.WaitAll(task);
         }
 
+        /// <summary>
+        /// Handles the UnhandledException event of the CurrentDomain control.
+        /// </summary>
+        /// <param name="sender">The source of the event.</param>
+        /// <param name="e">The <see cref="UnhandledExceptionEventArgs"/> instance containing the event data.</param>
         static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
         {
             var exception = (Exception)e.ExceptionObject;
 
-            if (_applicationInterface != null)
-            {
-                _applicationInterface.OnUnhandledException(exception);
-            }
+            _app.OnUnhandledException(exception);
 
             if (!Debugger.IsAttached)
             {
@@ -118,17 +320,50 @@ namespace MediaBrowser.ServerApplication
         /// <summary>
         /// Releases the mutex.
         /// </summary>
-        internal static void ReleaseMutex()
+        internal static void ReleaseMutex(ILogger logger)
         {
             if (_singleInstanceMutex == null)
             {
                 return;
             }
 
+            logger.Debug("Releasing mutex");
+
             _singleInstanceMutex.ReleaseMutex();
             _singleInstanceMutex.Close();
             _singleInstanceMutex.Dispose();
             _singleInstanceMutex = null;
         }
+
+        /// <summary>
+        /// Performs the update if needed.
+        /// </summary>
+        /// <param name="appPaths">The app paths.</param>
+        /// <param name="logger">The logger.</param>
+        /// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
+        private static bool PerformUpdateIfNeeded(ServerApplicationPaths appPaths, ILogger logger)
+        {
+            // Look for the existence of an update archive
+            var updateArchive = Path.Combine(appPaths.TempUpdatePath, Constants.MbServerPkgName + ".zip");
+            if (File.Exists(updateArchive))
+            {
+                logger.Info("An update is available from {0}", updateArchive);
+
+                // Update is there - execute update
+                try
+                {
+                    new ApplicationUpdater().UpdateApplication(MBApplication.MBServer, appPaths, updateArchive);
+
+                    // And just let the app exit so it can update
+                    return true;
+                }
+                catch (Exception e)
+                {
+                    MessageBox.Show(string.Format("Error attempting to update application.\n\n{0}\n\n{1}", e.GetType().Name, e.Message));
+                }
+            }
+
+            return false;
+        }
     }
 }