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jellyfin/MediaBrowser.ServerApplication/MainStartup.cs

418 lines
13 KiB

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;
namespace MediaBrowser.ServerApplication
{
public class MainStartup
{
/// <summary>
/// The single instance mutex
/// </summary>
private static Mutex _singleInstanceMutex;
private static ApplicationHost _appHost;
private static App _app;
private static BackgroundService _backgroundService;
private static ILogger _logger;
/// <summary>
/// Defines the entry point of the application.
/// </summary>
[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 = _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, "-installserviceasadmin", 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, "-uninstallserviceasadmin", StringComparison.OrdinalIgnoreCase))
{
logger.Info("Performing service uninstallation");
RunServiceUninstallation();
return;
}
AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
bool createdNew;
var runningPath = Process.GetCurrentProcess().MainModule.FileName.Replace(Path.DirectorySeparatorChar.ToString(), string.Empty);
_singleInstanceMutex = new Mutex(true, @"Local\" + runningPath, out createdNew);
if (!createdNew)
{
_singleInstanceMutex = null;
logger.Info("Shutting down because another instance of Media Browser Server is already running.");
return;
}
if (PerformUpdateIfNeeded(appPaths, logger))
{
logger.Info("Exiting to perform application update.");
return;
}
try
{
RunApplication(appPaths, logManager, runService);
}
finally
{
logger.Info("Shutting down");
ReleaseMutex(logger);
_appHost.Dispose();
}
}
/// <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();
_appHost = new ApplicationHost(appPaths, logManager);
_app = new App(_appHost, _appHost.LogManager.GetLogger("App"), runService);
if (runService)
{
_app.AppStarted += (sender, args) => StartService(logManager);
}
_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)
{
RunServiceInstallation();
}
var service = new BackgroundService(logManager.GetLogger("Service"));
service.Disposed += service_Disposed;
ServiceBase.Run(service);
_backgroundService = 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)
{
if (e.Reason == SessionEndReasons.SystemShutdown || _backgroundService == null)
{
Shutdown();
}
}
/// <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 (_backgroundService == null)
{
_app.OnUnhandledException(exception);
}
if (!Debugger.IsAttached)
{
Environment.Exit(System.Runtime.InteropServices.Marshal.GetHRForException(exception));
}
}
/// <summary>
/// Releases the mutex.
/// </summary>
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;
}
public static void Shutdown()
{
if (_backgroundService != null)
{
_backgroundService.Stop();
}
else
{
_app.Dispatcher.Invoke(_app.Shutdown);
}
}
public static void Restart()
{
// Second instance will start first, so release the mutex and dispose the http server ahead of time
_app.Dispatcher.Invoke(() => ReleaseMutex(_logger));
_appHost.Dispose();
RestartInternal();
_app.Dispatcher.Invoke(_app.Shutdown);
}
private static void RestartInternal()
{
if (_backgroundService == null)
{
System.Windows.Forms.Application.Restart();
}
else
{
//var controller = new ServiceController()
//{
// ServiceName = BackgroundService.Name
//};
}
}
}
}