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stub out .net core startup

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This commit is contained in:
Luke Pulverenti 2016-11-11 23:03:07 -05:00
parent b300da2dee
commit 7db8257945
1 changed files with 580 additions and 2 deletions
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src/Emby.Server/Program.cs
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@ -1,14 +1,592 @@
using System;
using System.Collections.Generic;
using MediaBrowser.Model.Logging;
using MediaBrowser.Server.Implementations;
using MediaBrowser.Server.Startup.Common;
using MediaBrowser.ServerApplication.Native;
using MediaBrowser.ServerApplication.Splash;
using MediaBrowser.ServerApplication.Updates;
using Microsoft.Win32;
using System;
using System.Configuration.Install;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Management;
using System.Runtime.InteropServices;
using System.ServiceProcess;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using Emby.Common.Implementations.EnvironmentInfo;
using Emby.Common.Implementations.IO;
using Emby.Common.Implementations.Logging;
using Emby.Common.Implementations.Networking;
using Emby.Common.Implementations.Security;
using Emby.Server.Core;
using Emby.Server.Core.Browser;
using Emby.Server.Implementations.IO;
using ImageMagickSharp;
using MediaBrowser.Common.Net;
using MediaBrowser.Server.Startup.Common.IO;
namespace Emby.Server
{
public class Program
{
private static ApplicationHost _appHost;
private static ILogger _logger;
private static bool _isRunningAsService = false;
private static bool _canRestartService = false;
private static bool _appHostDisposed;
[DllImport("kernel32.dll", SetLastError = true)]
static extern bool SetDllDirectory(string lpPathName);
/// <summary>
/// Defines the entry point of the application.
/// </summary>
public static void Main(string[] args)
{
var options = new StartupOptions();
_isRunningAsService = options.ContainsOption("-service");
if (_isRunningAsService)
{
//_canRestartService = CanRestartWindowsService();
}
var currentProcess = Process.GetCurrentProcess();
var applicationPath = currentProcess.MainModule.FileName;
var architecturePath = Path.Combine(Path.GetDirectoryName(applicationPath), Environment.Is64BitProcess ? "x64" : "x86");
Wand.SetMagickCoderModulePath(architecturePath);
var success = SetDllDirectory(architecturePath);
var appPaths = CreateApplicationPaths(applicationPath, _isRunningAsService);
var logManager = new NlogManager(appPaths.LogDirectoryPath, "server");
logManager.ReloadLogger(LogSeverity.Debug);
logManager.AddConsoleOutput();
var logger = _logger = logManager.GetLogger("Main");
ApplicationHost.LogEnvironmentInfo(logger, appPaths, true);
AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
if (IsAlreadyRunning(applicationPath, currentProcess))
{
logger.Info("Shutting down because another instance of Emby Server is already running.");
return;
}
if (PerformUpdateIfNeeded(appPaths, logger))
{
logger.Info("Exiting to perform application update.");
return;
}
try
{
RunApplication(appPaths, logManager, _isRunningAsService, options);
}
finally
{
OnServiceShutdown();
}
}
/// <summary>
/// Determines whether [is already running] [the specified current process].
/// </summary>
/// <param name="applicationPath">The application path.</param>
/// <param name="currentProcess">The current process.</param>
/// <returns><c>true</c> if [is already running] [the specified current process]; otherwise, <c>false</c>.</returns>
private static bool IsAlreadyRunning(string applicationPath, Process currentProcess)
{
var duplicate = Process.GetProcesses().FirstOrDefault(i =>
{
try
{
if (currentProcess.Id == i.Id)
{
return false;
}
}
catch (Exception)
{
return false;
}
try
{
//_logger.Info("Module: {0}", i.MainModule.FileName);
if (string.Equals(applicationPath, i.MainModule.FileName, StringComparison.OrdinalIgnoreCase))
{
return true;
}
return false;
}
catch (Exception)
{
return false;
}
});
if (duplicate != null)
{
_logger.Info("Found a duplicate process. Giving it time to exit.");
if (!duplicate.WaitForExit(30000))
{
_logger.Info("The duplicate process did not exit.");
return true;
}
}
if (!_isRunningAsService)
{
return false;
}
return false;
}
/// <summary>
/// Creates the application paths.
/// </summary>
/// <param name="applicationPath">The application path.</param>
/// <param name="runAsService">if set to <c>true</c> [run as service].</param>
/// <returns>ServerApplicationPaths.</returns>
private static ServerApplicationPaths CreateApplicationPaths(string applicationPath, bool runAsService)
{
var resourcesPath = Path.GetDirectoryName(applicationPath);
if (runAsService)
{
var systemPath = Path.GetDirectoryName(applicationPath);
var programDataPath = Path.GetDirectoryName(systemPath);
return new ServerApplicationPaths(programDataPath, applicationPath, resourcesPath);
}
return new ServerApplicationPaths(ApplicationPathHelper.GetProgramDataPath(applicationPath), applicationPath, resourcesPath);
}
/// <summary>
/// Gets a value indicating whether this instance can self restart.
/// </summary>
/// <value><c>true</c> if this instance can self restart; otherwise, <c>false</c>.</value>
public static bool CanSelfRestart
{
get
{
if (_isRunningAsService)
{
return _canRestartService;
}
else
{
return true;
}
}
}
/// <summary>
/// Gets a value indicating whether this instance can self update.
/// </summary>
/// <value><c>true</c> if this instance can self update; otherwise, <c>false</c>.</value>
public static bool CanSelfUpdate
{
get
{
if (_isRunningAsService)
{
return _canRestartService;
}
else
{
return true;
}
}
}
private static readonly TaskCompletionSource<bool> ApplicationTaskCompletionSource = new TaskCompletionSource<bool>();
/// <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>
/// <param name="options">The options.</param>
private static void RunApplication(ServerApplicationPaths appPaths, ILogManager logManager, bool runService, StartupOptions options)
{
var fileSystem = new WindowsFileSystem(logManager.GetLogger("FileSystem"));
fileSystem.AddShortcutHandler(new LnkShortcutHandler());
fileSystem.AddShortcutHandler(new MbLinkShortcutHandler(fileSystem));
var nativeApp = new WindowsApp(fileSystem, _logger)
{
IsRunningAsService = runService
};
var imageEncoder = ImageEncoderHelper.GetImageEncoder(_logger, logManager, fileSystem, options, () => _appHost.HttpClient, appPaths);
_appHost = new ApplicationHost(appPaths,
logManager,
options,
fileSystem,
nativeApp,
new PowerManagement(),
"emby.windows.zip",
new EnvironmentInfo(),
imageEncoder,
new Server.Startup.Common.SystemEvents(logManager.GetLogger("SystemEvents")),
new RecyclableMemoryStreamProvider(),
new NetworkManager(logManager.GetLogger("NetworkManager")),
GenerateCertificate,
() => Environment.UserDomainName);
var initProgress = new Progress<double>();
if (!runService)
{
// Not crazy about this but it's the only way to suppress ffmpeg crash dialog boxes
SetErrorMode(ErrorModes.SEM_FAILCRITICALERRORS | ErrorModes.SEM_NOALIGNMENTFAULTEXCEPT |
ErrorModes.SEM_NOGPFAULTERRORBOX | ErrorModes.SEM_NOOPENFILEERRORBOX);
}
var task = _appHost.Init(initProgress);
Task.WaitAll(task);
task = task.ContinueWith(new Action<Task>(a => _appHost.RunStartupTasks()), TaskContinuationOptions.OnlyOnRanToCompletion | TaskContinuationOptions.AttachedToParent);
if (runService)
{
StartService(logManager);
}
else
{
Task.WaitAll(task);
task = InstallVcredist2013IfNeeded(_appHost, _logger);
Task.WaitAll(task);
Microsoft.Win32.SystemEvents.SessionEnding += SystemEvents_SessionEnding;
Microsoft.Win32.SystemEvents.SessionSwitch += SystemEvents_SessionSwitch;
task = ApplicationTaskCompletionSource.Task;
Task.WaitAll(task);
}
}
private static void GenerateCertificate(string certPath, string certHost)
{
CertificateGenerator.CreateSelfSignCertificatePfx(certPath, certHost, _logger);
}
static void SystemEvents_SessionSwitch(object sender, SessionSwitchEventArgs e)
{
if (e.Reason == SessionSwitchReason.SessionLogon)
{
BrowserLauncher.OpenDashboard(_appHost);
}
}
/// <summary>
/// Starts the service.
/// </summary>
private static void StartService(ILogManager logManager)
{
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 void service_Disposed(object sender, EventArgs e)
{
ApplicationTaskCompletionSource.SetResult(true);
OnServiceShutdown();
}
private static void OnServiceShutdown()
{
_logger.Info("Shutting down");
DisposeAppHost();
}
/// <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 || !_isRunningAsService)
{
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;
new UnhandledExceptionWriter(_appHost.ServerConfigurationManager.ApplicationPaths, _logger, _appHost.LogManager).Log(exception);
if (!_isRunningAsService)
{
MessageBox.Show("Unhandled exception: " + exception.Message);
}
if (!Debugger.IsAttached)
{
Environment.Exit(Marshal.GetHRForException(exception));
}
}
/// <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, "MBServer" + ".zip");
if (File.Exists(updateArchive))
{
logger.Info("An update is available from {0}", updateArchive);
// Update is there - execute update
try
{
var serviceName = _isRunningAsService ? BackgroundService.GetExistingServiceName() : string.Empty;
new ApplicationUpdater().UpdateApplication(appPaths, updateArchive, logger, serviceName);
// And just let the app exit so it can update
return true;
}
catch (Exception e)
{
logger.ErrorException("Error starting updater.", 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 (_isRunningAsService)
{
ShutdownWindowsService();
}
else
{
DisposeAppHost();
ShutdownWindowsApplication();
}
}
public static void Restart()
{
DisposeAppHost();
if (_isRunningAsService)
{
RestartWindowsService();
}
else
{
//_logger.Info("Hiding server notify icon");
//_serverNotifyIcon.Visible = false;
_logger.Info("Starting new instance");
//Application.Restart();
Process.Start(_appHost.ServerConfigurationManager.ApplicationPaths.ApplicationPath);
ShutdownWindowsApplication();
}
}
private static void DisposeAppHost()
{
if (!_appHostDisposed)
{
_logger.Info("Disposing app host");
_appHostDisposed = true;
_appHost.Dispose();
}
}
private static void ShutdownWindowsApplication()
{
//_logger.Info("Calling Application.Exit");
//Application.Exit();
_logger.Info("Calling Environment.Exit");
Environment.Exit(0);
_logger.Info("Calling ApplicationTaskCompletionSource.SetResult");
ApplicationTaskCompletionSource.SetResult(true);
}
private static void ShutdownWindowsService()
{
}
private static void RestartWindowsService()
{
}
private static bool CanRestartWindowsService()
{
return false;
}
private static async Task InstallVcredist2013IfNeeded(ApplicationHost appHost, ILogger logger)
{
// Reference
// http://stackoverflow.com/questions/12206314/detect-if-visual-c-redistributable-for-visual-studio-2012-is-installed
try
{
var subkey = Environment.Is64BitProcess
? "SOFTWARE\\WOW6432Node\\Microsoft\\VisualStudio\\12.0\\VC\\Runtimes\\x64"
: "SOFTWARE\\Microsoft\\VisualStudio\\12.0\\VC\\Runtimes\\x86";
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Default)
.OpenSubKey(subkey))
{
if (ndpKey != null && ndpKey.GetValue("Version") != null)
{
var installedVersion = ((string)ndpKey.GetValue("Version")).TrimStart('v');
if (installedVersion.StartsWith("12", StringComparison.OrdinalIgnoreCase))
{
return;
}
}
}
}
catch (Exception ex)
{
logger.ErrorException("Error getting .NET Framework version", ex);
return;
}
try
{
await InstallVcredist2013().ConfigureAwait(false);
}
catch (Exception ex)
{
logger.ErrorException("Error installing Visual Studio C++ runtime", ex);
}
}
private async static Task InstallVcredist2013()
{
var httpClient = _appHost.HttpClient;
var tmp = await httpClient.GetTempFile(new HttpRequestOptions
{
Url = GetVcredist2013Url(),
Progress = new Progress<double>()
}).ConfigureAwait(false);
var exePath = Path.ChangeExtension(tmp, ".exe");
File.Copy(tmp, exePath);
var startInfo = new ProcessStartInfo
{
FileName = exePath,
CreateNoWindow = true,
WindowStyle = ProcessWindowStyle.Hidden,
Verb = "runas",
ErrorDialog = false
};
_logger.Info("Running {0}", startInfo.FileName);
using (var process = Process.Start(startInfo))
{
process.WaitForExit();
}
}
private static string GetVcredist2013Url()
{
if (Environment.Is64BitProcess)
{
return "https://github.com/MediaBrowser/Emby.Resources/raw/master/vcredist2013/vcredist_x64.exe";
}
// TODO: ARM url - https://github.com/MediaBrowser/Emby.Resources/raw/master/vcredist2013/vcredist_arm.exe
return "https://github.com/MediaBrowser/Emby.Resources/raw/master/vcredist2013/vcredist_x86.exe";
}
/// <summary>
/// Sets the error mode.
/// </summary>
/// <param name="uMode">The u mode.</param>
/// <returns>ErrorModes.</returns>
[DllImport("kernel32.dll")]
static extern ErrorModes SetErrorMode(ErrorModes uMode);
/// <summary>
/// Enum ErrorModes
/// </summary>
[Flags]
public enum ErrorModes : uint
{
/// <summary>
/// The SYSTE m_ DEFAULT
/// </summary>
SYSTEM_DEFAULT = 0x0,
/// <summary>
/// The SE m_ FAILCRITICALERRORS
/// </summary>
SEM_FAILCRITICALERRORS = 0x0001,
/// <summary>
/// The SE m_ NOALIGNMENTFAULTEXCEPT
/// </summary>
SEM_NOALIGNMENTFAULTEXCEPT = 0x0004,
/// <summary>
/// The SE m_ NOGPFAULTERRORBOX
/// </summary>
SEM_NOGPFAULTERRORBOX = 0x0002,
/// <summary>
/// The SE m_ NOOPENFILEERRORBOX
/// </summary>
SEM_NOOPENFILEERRORBOX = 0x8000
}
}
}