jellyfin-server/Jellyfin.Server/Program.cs
2019-03-07 21:29:17 +01:00

438 lines
17 KiB
C#

using System;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Security;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using CommandLine;
using Emby.Drawing;
using Emby.Server.Implementations;
using Emby.Server.Implementations.EnvironmentInfo;
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 MediaBrowser.Model.IO;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Serilog;
using Serilog.AspNetCore;
using ILogger = Microsoft.Extensions.Logging.ILogger;
namespace Jellyfin.Server
{
public static class Program
{
private static readonly CancellationTokenSource _tokenSource = new CancellationTokenSource();
private static readonly ILoggerFactory _loggerFactory = new SerilogLoggerFactory();
private static ILogger _logger;
private static bool _restartOnShutdown;
private static IConfiguration appConfig;
public static async 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
await Parser.Default.ParseArguments<StartupOptions>(args)
.MapResult(
options => StartApp(options),
errs => Task.FromResult(0)).ConfigureAwait(false);
}
public static void Shutdown()
{
if (!_tokenSource.IsCancellationRequested)
{
_tokenSource.Cancel();
}
}
public static void Restart()
{
_restartOnShutdown = true;
Shutdown();
}
private static async Task StartApp(StartupOptions options)
{
ServerApplicationPaths appPaths = CreateApplicationPaths(options);
// $JELLYFIN_LOG_DIR needs to be set for the logger configuration manager
Environment.SetEnvironmentVariable("JELLYFIN_LOG_DIR", appPaths.LogDirectoryPath);
appConfig = await CreateConfiguration(appPaths).ConfigureAwait(false);
CreateLogger(appConfig, appPaths);
_logger = _loggerFactory.CreateLogger("Main");
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);
EnvironmentInfo environmentInfo = new EnvironmentInfo(GetOperatingSystem());
ApplicationHost.LogEnvironmentInfo(_logger, appPaths, environmentInfo);
SQLitePCL.Batteries_V2.Init();
// Allow all https requests
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(delegate { return true; });
var fileSystem = new ManagedFileSystem(_loggerFactory, environmentInfo, appPaths);
using (var appHost = new CoreAppHost(
appPaths,
_loggerFactory,
options,
fileSystem,
environmentInfo,
new NullImageEncoder(),
new NetworkManager(_loggerFactory, environmentInfo),
appConfig))
{
await appHost.Init(new ServiceCollection()).ConfigureAwait(false);
appHost.ImageProcessor.ImageEncoder = GetImageEncoder(fileSystem, appPaths, appHost.LocalizationManager);
await appHost.RunStartupTasks().ConfigureAwait(false);
try
{
// Block main thread until shutdown
await Task.Delay(-1, _tokenSource.Token).ConfigureAwait(false);
}
catch (TaskCanceledException)
{
// Don't throw on cancellation
}
}
if (_restartOnShutdown)
{
StartNewInstance(options);
}
}
/// <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 XDG approach is followed:
/// https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html
/// </summary>
/// <param name="options">StartupOptions</param>
/// <returns>ServerApplicationPaths</returns>
private static ServerApplicationPaths CreateApplicationPaths(StartupOptions options)
{
// dataDir
// IF --datadir
// ELSE IF $JELLYFIN_DATA_PATH
// 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_PATH");
if (string.IsNullOrEmpty(dataDir))
{
// LocalApplicationData follows the XDG spec on unix machines
dataDir = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "jellyfin");
}
}
Directory.CreateDirectory(dataDir);
// 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");
}
}
}
// 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(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);
}
private static async Task<IConfiguration> CreateConfiguration(IApplicationPaths appPaths)
{
string configPath = Path.Combine(appPaths.ConfigurationDirectoryPath, "logging.json");
if (!File.Exists(configPath))
{
// For some reason the csproj name is used instead of the assembly name
using (Stream rscstr = typeof(Program).Assembly
.GetManifestResourceStream("Jellyfin.Server.Resources.Configuration.logging.json"))
using (Stream fstr = File.Open(configPath, FileMode.CreateNew))
{
await rscstr.CopyToAsync(fstr).ConfigureAwait(false);
}
}
return new ConfigurationBuilder()
.SetBasePath(appPaths.ConfigurationDirectoryPath)
.AddJsonFile("logging.json")
.AddEnvironmentVariables("JELLYFIN_")
.AddInMemoryCollection(ConfigurationOptions.Configuration)
.Build();
}
private static void CreateLogger(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()
.CreateLogger();
}
catch (Exception ex)
{
Serilog.Log.Logger = new LoggerConfiguration()
.WriteTo.Console(outputTemplate: "[{Timestamp:HH:mm:ss}] [{Level:u3}] {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}] {Message}{NewLine}{Exception}"))
.Enrich.FromLogContext()
.CreateLogger();
Serilog.Log.Logger.Fatal(ex, "Failed to create/read logger configuration");
}
}
private static IImageEncoder GetImageEncoder(
IFileSystem fileSystem,
IApplicationPaths appPaths,
ILocalizationManager localizationManager)
{
try
{
return new SkiaEncoder(_loggerFactory, appPaths, fileSystem, localizationManager);
}
catch (Exception ex)
{
_logger.LogInformation(ex, "Skia not available. Will fallback to NullIMageEncoder. {0}");
}
return new NullImageEncoder();
}
private static MediaBrowser.Model.System.OperatingSystem GetOperatingSystem()
{
switch (Environment.OSVersion.Platform)
{
case PlatformID.MacOSX:
return MediaBrowser.Model.System.OperatingSystem.OSX;
case PlatformID.Win32NT:
return MediaBrowser.Model.System.OperatingSystem.Windows;
case PlatformID.Unix:
default:
{
string osDescription = RuntimeInformation.OSDescription;
if (osDescription.Contains("linux", StringComparison.OrdinalIgnoreCase))
{
return MediaBrowser.Model.System.OperatingSystem.Linux;
}
else if (osDescription.Contains("darwin", StringComparison.OrdinalIgnoreCase))
{
return MediaBrowser.Model.System.OperatingSystem.OSX;
}
else if (osDescription.Contains("bsd", StringComparison.OrdinalIgnoreCase))
{
return MediaBrowser.Model.System.OperatingSystem.BSD;
}
throw new Exception($"Can't resolve OS with description: '{osDescription}'");
}
}
}
private static void StartNewInstance(StartupOptions options)
{
_logger.LogInformation("Starting new instance");
string module = options.RestartPath;
if (string.IsNullOrWhiteSpace(module))
{
module = Environment.GetCommandLineArgs().First();
}
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 + "\"";
}
}
}