jellyfin/Jellyfin.Server/Program.cs

580 lines
23 KiB
C#

using System;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using CommandLine;
using Emby.Drawing;
using Emby.Server.Implementations;
using Emby.Server.Implementations.IO;
using Emby.Server.Implementations.Networking;
using Jellyfin.Drawing.Skia;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Controller.Drawing;
using MediaBrowser.Model.Globalization;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Abstractions;
using Serilog;
using Serilog.Events;
using Serilog.Extensions.Logging;
using SQLitePCL;
using ILogger = Microsoft.Extensions.Logging.ILogger;
namespace Jellyfin.Server
{
/// <summary>
/// Class containing the entry point of the application.
/// </summary>
public static class Program
{
/// <summary>
/// The name of logging configuration file containing application defaults.
/// </summary>
public static readonly string LoggingConfigFileDefault = "logging.default.json";
/// <summary>
/// The name of the logging configuration file containing the system-specific override settings.
/// </summary>
public static readonly string LoggingConfigFileSystem = "logging.json";
private static readonly CancellationTokenSource _tokenSource = new CancellationTokenSource();
private static readonly ILoggerFactory _loggerFactory = new SerilogLoggerFactory();
private static ILogger _logger = NullLogger.Instance;
private static bool _restartOnShutdown;
/// <summary>
/// The entry point of the application.
/// </summary>
/// <param name="args">The command line arguments passed.</param>
/// <returns><see cref="Task" />.</returns>
public static Task Main(string[] args)
{
// For backwards compatibility.
// Modify any input arguments now which start with single-hyphen to POSIX standard
// double-hyphen to allow parsing by CommandLineParser package.
const string Pattern = @"^(-[^-\s]{2})"; // Match -xx, not -x, not --xx, not xx
const string Substitution = @"-$1"; // Prepend with additional single-hyphen
var regex = new Regex(Pattern);
for (var i = 0; i < args.Length; i++)
{
args[i] = regex.Replace(args[i], Substitution);
}
// Parse the command line arguments and either start the app or exit indicating error
return Parser.Default.ParseArguments<StartupOptions>(args)
.MapResult(StartApp, _ => Task.CompletedTask);
}
/// <summary>
/// Shuts down the application.
/// </summary>
internal static void Shutdown()
{
if (!_tokenSource.IsCancellationRequested)
{
_tokenSource.Cancel();
}
}
/// <summary>
/// Restarts the application.
/// </summary>
internal static void Restart()
{
_restartOnShutdown = true;
Shutdown();
}
private static async Task StartApp(StartupOptions options)
{
var stopWatch = new Stopwatch();
stopWatch.Start();
// Log all uncaught exceptions to std error
static void UnhandledExceptionToConsole(object sender, UnhandledExceptionEventArgs e) =>
Console.Error.WriteLine("Unhandled Exception\n" + e.ExceptionObject.ToString());
AppDomain.CurrentDomain.UnhandledException += UnhandledExceptionToConsole;
ServerApplicationPaths appPaths = CreateApplicationPaths(options);
// $JELLYFIN_LOG_DIR needs to be set for the logger configuration manager
Environment.SetEnvironmentVariable("JELLYFIN_LOG_DIR", appPaths.LogDirectoryPath);
// Create an instance of the application configuration to use for application startup
await InitLoggingConfigFile(appPaths).ConfigureAwait(false);
IConfiguration startupConfig = CreateAppConfiguration(appPaths);
// Initialize logging framework
InitializeLoggingFramework(startupConfig, appPaths);
_logger = _loggerFactory.CreateLogger("Main");
// Log uncaught exceptions to the logging instead of std error
AppDomain.CurrentDomain.UnhandledException -= UnhandledExceptionToConsole;
AppDomain.CurrentDomain.UnhandledException += (sender, e)
=> _logger.LogCritical((Exception)e.ExceptionObject, "Unhandled Exception");
// Intercept Ctrl+C and Ctrl+Break
Console.CancelKeyPress += (sender, e) =>
{
if (_tokenSource.IsCancellationRequested)
{
return; // Already shutting down
}
e.Cancel = true;
_logger.LogInformation("Ctrl+C, shutting down");
Environment.ExitCode = 128 + 2;
Shutdown();
};
// Register a SIGTERM handler
AppDomain.CurrentDomain.ProcessExit += (sender, e) =>
{
if (_tokenSource.IsCancellationRequested)
{
return; // Already shutting down
}
_logger.LogInformation("Received a SIGTERM signal, shutting down");
Environment.ExitCode = 128 + 15;
Shutdown();
};
_logger.LogInformation(
"Jellyfin version: {Version}",
Assembly.GetEntryAssembly()!.GetName().Version!.ToString(3));
ApplicationHost.LogEnvironmentInfo(_logger, appPaths);
// Make sure we have all the code pages we can get
// Ref: https://docs.microsoft.com/en-us/dotnet/api/system.text.codepagesencodingprovider.instance?view=netcore-3.0#remarks
Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
// Increase the max http request limit
// The default connection limit is 10 for ASP.NET hosted applications and 2 for all others.
ServicePointManager.DefaultConnectionLimit = Math.Max(96, ServicePointManager.DefaultConnectionLimit);
// Disable the "Expect: 100-Continue" header by default
// http://stackoverflow.com/questions/566437/http-post-returns-the-error-417-expectation-failed-c
ServicePointManager.Expect100Continue = false;
Batteries_V2.Init();
if (raw.sqlite3_enable_shared_cache(1) != raw.SQLITE_OK)
{
_logger.LogWarning("Failed to enable shared cache for SQLite");
}
var appHost = new CoreAppHost(
appPaths,
_loggerFactory,
options,
new ManagedFileSystem(_loggerFactory.CreateLogger<ManagedFileSystem>(), appPaths),
GetImageEncoder(appPaths),
new NetworkManager(_loggerFactory.CreateLogger<NetworkManager>()));
try
{
ServiceCollection serviceCollection = new ServiceCollection();
await appHost.InitAsync(serviceCollection, startupConfig).ConfigureAwait(false);
var webHost = CreateWebHostBuilder(appHost, serviceCollection, appPaths).Build();
// A bit hacky to re-use service provider since ASP.NET doesn't allow a custom service collection.
appHost.ServiceProvider = webHost.Services;
appHost.FindParts();
Migrations.MigrationRunner.Run(appHost, _loggerFactory);
try
{
await webHost.StartAsync().ConfigureAwait(false);
}
catch
{
_logger.LogError("Kestrel failed to start! This is most likely due to an invalid address or port bind - correct your bind configuration in system.xml and try again.");
throw;
}
await appHost.RunStartupTasksAsync().ConfigureAwait(false);
stopWatch.Stop();
_logger.LogInformation("Startup complete {Time:g}", stopWatch.Elapsed);
// Block main thread until shutdown
await Task.Delay(-1, _tokenSource.Token).ConfigureAwait(false);
}
catch (TaskCanceledException)
{
// Don't throw on cancellation
}
catch (Exception ex)
{
_logger.LogCritical(ex, "Error while starting server.");
}
finally
{
appHost?.Dispose();
}
if (_restartOnShutdown)
{
StartNewInstance(options);
}
}
private static IWebHostBuilder CreateWebHostBuilder(ApplicationHost appHost, IServiceCollection serviceCollection, IApplicationPaths appPaths)
{
return new WebHostBuilder()
.UseKestrel(options =>
{
var addresses = appHost.ServerConfigurationManager
.Configuration
.LocalNetworkAddresses
.Select(appHost.NormalizeConfiguredLocalAddress)
.Where(i => i != null)
.ToList();
if (addresses.Any())
{
foreach (var address in addresses)
{
_logger.LogInformation("Kestrel listening on {IpAddress}", address);
options.Listen(address, appHost.HttpPort);
if (appHost.EnableHttps && appHost.Certificate != null)
{
options.Listen(
address,
appHost.HttpsPort,
listenOptions => listenOptions.UseHttps(appHost.Certificate));
}
}
}
else
{
_logger.LogInformation("Kestrel listening on all interfaces");
options.ListenAnyIP(appHost.HttpPort);
if (appHost.EnableHttps && appHost.Certificate != null)
{
options.ListenAnyIP(
appHost.HttpsPort,
listenOptions => listenOptions.UseHttps(appHost.Certificate));
}
}
})
.ConfigureAppConfiguration(config => config.ConfigureAppConfiguration(appPaths))
.UseSerilog()
.UseContentRoot(appHost.ContentRoot)
.ConfigureServices(services =>
{
// Merge the external ServiceCollection into ASP.NET DI
services.TryAdd(serviceCollection);
})
.UseStartup<Startup>();
}
/// <summary>
/// Create the data, config and log paths from the variety of inputs(command line args,
/// environment variables) or decide on what default to use. For Windows it's %AppPath%
/// for everything else the
/// <a href="https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG approach</a>
/// is followed.
/// </summary>
/// <param name="options">The <see cref="StartupOptions" /> for this instance.</param>
/// <returns><see cref="ServerApplicationPaths" />.</returns>
private static ServerApplicationPaths CreateApplicationPaths(StartupOptions options)
{
// dataDir
// IF --datadir
// ELSE IF $JELLYFIN_DATA_DIR
// ELSE IF windows, use <%APPDATA%>/jellyfin
// ELSE IF $XDG_DATA_HOME then use $XDG_DATA_HOME/jellyfin
// ELSE use $HOME/.local/share/jellyfin
var dataDir = options.DataDir;
if (string.IsNullOrEmpty(dataDir))
{
dataDir = Environment.GetEnvironmentVariable("JELLYFIN_DATA_DIR");
if (string.IsNullOrEmpty(dataDir))
{
// LocalApplicationData follows the XDG spec on unix machines
dataDir = Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
"jellyfin");
}
}
// configDir
// IF --configdir
// ELSE IF $JELLYFIN_CONFIG_DIR
// ELSE IF --datadir, use <datadir>/config (assume portable run)
// ELSE IF <datadir>/config exists, use that
// ELSE IF windows, use <datadir>/config
// ELSE IF $XDG_CONFIG_HOME use $XDG_CONFIG_HOME/jellyfin
// ELSE $HOME/.config/jellyfin
var configDir = options.ConfigDir;
if (string.IsNullOrEmpty(configDir))
{
configDir = Environment.GetEnvironmentVariable("JELLYFIN_CONFIG_DIR");
if (string.IsNullOrEmpty(configDir))
{
if (options.DataDir != null
|| Directory.Exists(Path.Combine(dataDir, "config"))
|| RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
// Hang config folder off already set dataDir
configDir = Path.Combine(dataDir, "config");
}
else
{
// $XDG_CONFIG_HOME defines the base directory relative to which
// user specific configuration files should be stored.
configDir = Environment.GetEnvironmentVariable("XDG_CONFIG_HOME");
// If $XDG_CONFIG_HOME is either not set or empty,
// a default equal to $HOME /.config should be used.
if (string.IsNullOrEmpty(configDir))
{
configDir = Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
".config");
}
configDir = Path.Combine(configDir, "jellyfin");
}
}
}
// cacheDir
// IF --cachedir
// ELSE IF $JELLYFIN_CACHE_DIR
// ELSE IF windows, use <datadir>/cache
// ELSE IF XDG_CACHE_HOME, use $XDG_CACHE_HOME/jellyfin
// ELSE HOME/.cache/jellyfin
var cacheDir = options.CacheDir;
if (string.IsNullOrEmpty(cacheDir))
{
cacheDir = Environment.GetEnvironmentVariable("JELLYFIN_CACHE_DIR");
if (string.IsNullOrEmpty(cacheDir))
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
// Hang cache folder off already set dataDir
cacheDir = Path.Combine(dataDir, "cache");
}
else
{
// $XDG_CACHE_HOME defines the base directory relative to which
// user specific non-essential data files should be stored.
cacheDir = Environment.GetEnvironmentVariable("XDG_CACHE_HOME");
// If $XDG_CACHE_HOME is either not set or empty,
// a default equal to $HOME/.cache should be used.
if (string.IsNullOrEmpty(cacheDir))
{
cacheDir = Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
".cache");
}
cacheDir = Path.Combine(cacheDir, "jellyfin");
}
}
}
// webDir
// IF --webdir
// ELSE IF $JELLYFIN_WEB_DIR
// ELSE use <bindir>/jellyfin-web
var webDir = options.WebDir;
if (string.IsNullOrEmpty(webDir))
{
webDir = Environment.GetEnvironmentVariable("JELLYFIN_WEB_DIR");
if (string.IsNullOrEmpty(webDir))
{
// Use default location under ResourcesPath
webDir = Path.Combine(AppContext.BaseDirectory, "jellyfin-web");
}
}
// logDir
// IF --logdir
// ELSE IF $JELLYFIN_LOG_DIR
// ELSE IF --datadir, use <datadir>/log (assume portable run)
// ELSE <datadir>/log
var logDir = options.LogDir;
if (string.IsNullOrEmpty(logDir))
{
logDir = Environment.GetEnvironmentVariable("JELLYFIN_LOG_DIR");
if (string.IsNullOrEmpty(logDir))
{
// Hang log folder off already set dataDir
logDir = Path.Combine(dataDir, "log");
}
}
// Ensure the main folders exist before we continue
try
{
Directory.CreateDirectory(dataDir);
Directory.CreateDirectory(logDir);
Directory.CreateDirectory(configDir);
Directory.CreateDirectory(cacheDir);
}
catch (IOException ex)
{
Console.Error.WriteLine("Error whilst attempting to create folder");
Console.Error.WriteLine(ex.ToString());
Environment.Exit(1);
}
return new ServerApplicationPaths(dataDir, logDir, configDir, cacheDir, webDir);
}
/// <summary>
/// Initialize the logging configuration file using the bundled resource file as a default if it doesn't exist
/// already.
/// </summary>
private static async Task InitLoggingConfigFile(IApplicationPaths appPaths)
{
// Do nothing if the config file already exists
string configPath = Path.Combine(appPaths.ConfigurationDirectoryPath, LoggingConfigFileDefault);
if (File.Exists(configPath))
{
return;
}
// Get a stream of the resource contents
// NOTE: The .csproj name is used instead of the assembly name in the resource path
const string ResourcePath = "Jellyfin.Server.Resources.Configuration.logging.json";
await using Stream? resource = typeof(Program).Assembly.GetManifestResourceStream(ResourcePath)
?? throw new InvalidOperationException($"Invalid resource path: '{ResourcePath}'");
// Copy the resource contents to the expected file path for the config file
await using Stream dst = File.Open(configPath, FileMode.CreateNew);
await resource.CopyToAsync(dst).ConfigureAwait(false);
}
private static IConfiguration CreateAppConfiguration(IApplicationPaths appPaths)
{
return new ConfigurationBuilder()
.ConfigureAppConfiguration(appPaths)
.Build();
}
private static IConfigurationBuilder ConfigureAppConfiguration(this IConfigurationBuilder config, IApplicationPaths appPaths)
{
return config
.SetBasePath(appPaths.ConfigurationDirectoryPath)
.AddInMemoryCollection(ConfigurationOptions.Configuration)
.AddJsonFile(LoggingConfigFileDefault, optional: false, reloadOnChange: true)
.AddJsonFile(LoggingConfigFileSystem, optional: true, reloadOnChange: true)
.AddEnvironmentVariables("JELLYFIN_");
}
/// <summary>
/// Initialize Serilog using configuration and fall back to defaults on failure.
/// </summary>
private static void InitializeLoggingFramework(IConfiguration configuration, IApplicationPaths appPaths)
{
try
{
// Serilog.Log is used by SerilogLoggerFactory when no logger is specified
Serilog.Log.Logger = new LoggerConfiguration()
.ReadFrom.Configuration(configuration)
.Enrich.FromLogContext()
.Enrich.WithThreadId()
.CreateLogger();
}
catch (Exception ex)
{
Serilog.Log.Logger = new LoggerConfiguration()
.WriteTo.Console(outputTemplate: "[{Timestamp:HH:mm:ss}] [{Level:u3}] [{ThreadId}] {SourceContext}: {Message:lj}{NewLine}{Exception}")
.WriteTo.Async(x => x.File(
Path.Combine(appPaths.LogDirectoryPath, "log_.log"),
rollingInterval: RollingInterval.Day,
outputTemplate: "[{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz}] [{Level:u3}] [{ThreadId}] {SourceContext}: {Message}{NewLine}{Exception}"))
.Enrich.FromLogContext()
.Enrich.WithThreadId()
.CreateLogger();
Serilog.Log.Logger.Fatal(ex, "Failed to create/read logger configuration");
}
}
private static IImageEncoder GetImageEncoder(IApplicationPaths appPaths)
{
try
{
// Test if the native lib is available
SkiaEncoder.TestSkia();
return new SkiaEncoder(
_loggerFactory.CreateLogger<SkiaEncoder>(),
appPaths);
}
catch (Exception ex)
{
_logger.LogWarning(ex, "Skia not available. Will fallback to NullIMageEncoder.");
}
return new NullImageEncoder();
}
private static void StartNewInstance(StartupOptions options)
{
_logger.LogInformation("Starting new instance");
var module = options.RestartPath;
if (string.IsNullOrWhiteSpace(module))
{
module = Environment.GetCommandLineArgs()[0];
}
string commandLineArgsString;
if (options.RestartArgs != null)
{
commandLineArgsString = options.RestartArgs ?? string.Empty;
}
else
{
commandLineArgsString = string.Join(
' ',
Environment.GetCommandLineArgs().Skip(1).Select(NormalizeCommandLineArgument));
}
_logger.LogInformation("Executable: {0}", module);
_logger.LogInformation("Arguments: {0}", commandLineArgsString);
Process.Start(module, commandLineArgsString);
}
private static string NormalizeCommandLineArgument(string arg)
{
if (!arg.Contains(" ", StringComparison.OrdinalIgnoreCase))
{
return arg;
}
return "\"" + arg + "\"";
}
}
}