jellyfin/Emby.Server.Implementations/ApplicationHost.cs

using Emby.Common.Implementations;
using Emby.Common.Implementations.Serialization;
using Emby.Dlna;
using Emby.Dlna.ConnectionManager;
using Emby.Dlna.ContentDirectory;
using Emby.Dlna.Main;
using Emby.Dlna.MediaReceiverRegistrar;
using Emby.Dlna.Ssdp;
using Emby.Drawing;
using Emby.Photos;
using Emby.Server.Implementations.Activity;
using Emby.Server.Implementations.Channels;
using Emby.Server.Implementations.Collections;
using Emby.Server.Implementations.Configuration;
using Emby.Server.Implementations.Data;
using Emby.Server.Implementations.Devices;
using Emby.Server.Implementations.Dto;
using Emby.Server.Implementations.FFMpeg;
using Emby.Server.Implementations.HttpServer;
using Emby.Server.Implementations.HttpServer.Security;
using Emby.Server.Implementations.IO;
using Emby.Server.Implementations.Library;
using Emby.Server.Implementations.LiveTv;
using Emby.Server.Implementations.Localization;
using Emby.Server.Implementations.MediaEncoder;
using Emby.Server.Implementations.Migrations;
using Emby.Server.Implementations.Notifications;
using Emby.Server.Implementations.Playlists;
using Emby.Server.Implementations.Security;
using Emby.Server.Implementations.Session;
using Emby.Server.Implementations.Social;
using Emby.Server.Implementations.TV;
using Emby.Server.Implementations.Updates;
using MediaBrowser.Api;
using MediaBrowser.Common;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Events;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Common.Net;
using MediaBrowser.Common.Plugins;
using MediaBrowser.Common.Progress;
using MediaBrowser.Common.Security;
using MediaBrowser.Common.Updates;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Channels;
using MediaBrowser.Controller.Chapters;
using MediaBrowser.Controller.Collections;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Connect;
using MediaBrowser.Controller.Devices;
using MediaBrowser.Controller.Dlna;
using MediaBrowser.Controller.Drawing;
using MediaBrowser.Controller.Dto;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Entities.Movies;
using MediaBrowser.Controller.Entities.TV;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.LiveTv;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Controller.Net;
using MediaBrowser.Controller.Notifications;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Controller.Playlists;
using MediaBrowser.Controller.Plugins;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Controller.Resolvers;
using MediaBrowser.Controller.Security;
using MediaBrowser.Controller.Session;
using MediaBrowser.Controller.Sorting;
using MediaBrowser.Controller.Subtitles;
using MediaBrowser.Controller.Sync;
using MediaBrowser.Controller.TV;
using MediaBrowser.LocalMetadata.Savers;
using MediaBrowser.Model.Activity;
using MediaBrowser.Model.Configuration;
using MediaBrowser.Model.Diagnostics;
using MediaBrowser.Model.Dlna;
using MediaBrowser.Model.Globalization;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.MediaInfo;
using MediaBrowser.Model.Net;
using MediaBrowser.Model.News;
using MediaBrowser.Model.Reflection;
using MediaBrowser.Model.Serialization;
using MediaBrowser.Model.Services;
using MediaBrowser.Model.Social;
using MediaBrowser.Model.System;
using MediaBrowser.Model.Text;
using MediaBrowser.Model.Updates;
using MediaBrowser.Model.Xml;
using MediaBrowser.Providers.Chapters;
using MediaBrowser.Providers.Manager;
using MediaBrowser.Providers.Subtitles;
using MediaBrowser.WebDashboard.Api;
using MediaBrowser.XbmcMetadata.Providers;
using OpenSubtitlesHandler;
using ServiceStack;
using SocketHttpListener.Primitives;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Emby.Server.Core.Cryptography;
using Emby.Server.Implementations.Archiving;
using Emby.Server.Implementations.Cryptography;
using Emby.Server.Implementations.Diagnostics;
using Emby.Server.Implementations.Net;
using Emby.Server.Implementations.Reflection;
using Emby.Server.Implementations.ScheduledTasks;
using Emby.Server.Implementations.Serialization;
using Emby.Server.Implementations.Threading;
using Emby.Server.Implementations.Xml;
using Emby.Server.MediaEncoding.Subtitles;
using MediaBrowser.MediaEncoding.BdInfo;
using MediaBrowser.Model.Cryptography;
using MediaBrowser.Model.Events;
using MediaBrowser.Model.Tasks;
using MediaBrowser.Model.Threading;
using StringExtensions = MediaBrowser.Controller.Extensions.StringExtensions;

namespace Emby.Server.Implementations
{
    /// <summary>
    /// Class CompositionRoot
    /// </summary>
    public abstract class ApplicationHost : IServerApplicationHost, IDependencyContainer
    {
        /// <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 abstract bool CanSelfRestart { get; }

        /// <summary>
        /// Gets or sets 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 virtual bool CanSelfUpdate
        {
            get
            {
                return false;
            }
        }

        /// <summary>
        /// Occurs when [has pending restart changed].
        /// </summary>
        public event EventHandler HasPendingRestartChanged;

        /// <summary>
        /// Occurs when [application updated].
        /// </summary>
        public event EventHandler<GenericEventArgs<PackageVersionInfo>> ApplicationUpdated;

        /// <summary>
        /// Gets or sets a value indicating whether this instance has changes that require the entire application to restart.
        /// </summary>
        /// <value><c>true</c> if this instance has pending application restart; otherwise, <c>false</c>.</value>
        public bool HasPendingRestart { get; private set; }

        /// <summary>
        /// Gets or sets the logger.
        /// </summary>
        /// <value>The logger.</value>
        protected ILogger Logger { get; set; }

        /// <summary>
        /// Gets or sets the plugins.
        /// </summary>
        /// <value>The plugins.</value>
        public IPlugin[] Plugins { get; protected set; }

        /// <summary>
        /// Gets or sets the log manager.
        /// </summary>
        /// <value>The log manager.</value>
        public ILogManager LogManager { get; protected set; }

        /// <summary>
        /// Gets the application paths.
        /// </summary>
        /// <value>The application paths.</value>
        protected ServerApplicationPaths ApplicationPaths { get; set; }

        /// <summary>
        /// Gets assemblies that failed to load
        /// </summary>
        /// <value>The failed assemblies.</value>
        public List<string> FailedAssemblies { get; protected set; }

        /// <summary>
        /// Gets all concrete types.
        /// </summary>
        /// <value>All concrete types.</value>
        public Type[] AllConcreteTypes { get; protected set; }

        /// <summary>
        /// The disposable parts
        /// </summary>
        protected readonly List<IDisposable> DisposableParts = new List<IDisposable>();

        /// <summary>
        /// Gets a value indicating whether this instance is first run.
        /// </summary>
        /// <value><c>true</c> if this instance is first run; otherwise, <c>false</c>.</value>
        public bool IsFirstRun { get; private set; }

        /// <summary>
        /// Gets the configuration manager.
        /// </summary>
        /// <value>The configuration manager.</value>
        protected IConfigurationManager ConfigurationManager { get; set; }

        public IFileSystem FileSystemManager { get; set; }

        protected IEnvironmentInfo EnvironmentInfo { get; set; }

        private IBlurayExaminer BlurayExaminer { get; set; }

        public PackageVersionClass SystemUpdateLevel
        {
            get
            {

#if BETA
                return PackageVersionClass.Beta;
#endif
                return PackageVersionClass.Release;
            }
        }

        public virtual string OperatingSystemDisplayName
        {
            get { return EnvironmentInfo.OperatingSystemName; }
        }

        /// <summary>
        /// The container
        /// </summary>
        protected readonly SimpleInjector.Container Container = new SimpleInjector.Container();

        protected ISystemEvents SystemEvents { get; set; }
        protected IMemoryStreamFactory MemoryStreamFactory { get; set; }

        /// <summary>
        /// Gets the server configuration manager.
        /// </summary>
        /// <value>The server configuration manager.</value>
        public IServerConfigurationManager ServerConfigurationManager
        {
            get { return (IServerConfigurationManager)ConfigurationManager; }
        }

        /// <summary>
        /// Gets the configuration manager.
        /// </summary>
        /// <returns>IConfigurationManager.</returns>
        protected IConfigurationManager GetConfigurationManager()
        {
            return new ServerConfigurationManager(ApplicationPaths, LogManager, XmlSerializer, FileSystemManager);
        }

        /// <summary>
        /// Gets or sets the server manager.
        /// </summary>
        /// <value>The server manager.</value>
        private IServerManager ServerManager { get; set; }
        /// <summary>
        /// Gets or sets the user manager.
        /// </summary>
        /// <value>The user manager.</value>
        public IUserManager UserManager { get; set; }
        /// <summary>
        /// Gets or sets the library manager.
        /// </summary>
        /// <value>The library manager.</value>
        internal ILibraryManager LibraryManager { get; set; }
        /// <summary>
        /// Gets or sets the directory watchers.
        /// </summary>
        /// <value>The directory watchers.</value>
        private ILibraryMonitor LibraryMonitor { get; set; }
        /// <summary>
        /// Gets or sets the provider manager.
        /// </summary>
        /// <value>The provider manager.</value>
        private IProviderManager ProviderManager { get; set; }
        /// <summary>
        /// Gets or sets the HTTP server.
        /// </summary>
        /// <value>The HTTP server.</value>
        private IHttpServer HttpServer { get; set; }
        private IDtoService DtoService { get; set; }
        public IImageProcessor ImageProcessor { get; set; }

        /// <summary>
        /// Gets or sets the media encoder.
        /// </summary>
        /// <value>The media encoder.</value>
        private IMediaEncoder MediaEncoder { get; set; }
        private ISubtitleEncoder SubtitleEncoder { get; set; }

        private IConnectManager ConnectManager { get; set; }
        private ISessionManager SessionManager { get; set; }

        private ILiveTvManager LiveTvManager { get; set; }

        public ILocalizationManager LocalizationManager { get; set; }

        private IEncodingManager EncodingManager { get; set; }
        private IChannelManager ChannelManager { get; set; }
        private ISyncManager SyncManager { get; set; }

        /// <summary>
        /// Gets or sets the user data repository.
        /// </summary>
        /// <value>The user data repository.</value>
        private IUserDataManager UserDataManager { get; set; }
        private IUserRepository UserRepository { get; set; }
        internal IDisplayPreferencesRepository DisplayPreferencesRepository { get; set; }
        internal IItemRepository ItemRepository { get; set; }
        private INotificationsRepository NotificationsRepository { get; set; }

        private INotificationManager NotificationManager { get; set; }
        private ISubtitleManager SubtitleManager { get; set; }
        private IChapterManager ChapterManager { get; set; }
        private IDeviceManager DeviceManager { get; set; }

        internal IUserViewManager UserViewManager { get; set; }

        private IAuthenticationRepository AuthenticationRepository { get; set; }
        private ITVSeriesManager TVSeriesManager { get; set; }
        private ICollectionManager CollectionManager { get; set; }
        private IMediaSourceManager MediaSourceManager { get; set; }
        private IPlaylistManager PlaylistManager { get; set; }

        /// <summary>
        /// Gets or sets the installation manager.
        /// </summary>
        /// <value>The installation manager.</value>
        protected IInstallationManager InstallationManager { get; private set; }
        /// <summary>
        /// Gets the security manager.
        /// </summary>
        /// <value>The security manager.</value>
        protected ISecurityManager SecurityManager { get; private set; }

        /// <summary>
        /// Gets or sets the zip client.
        /// </summary>
        /// <value>The zip client.</value>
        protected IZipClient ZipClient { get; private set; }

        protected IAuthService AuthService { get; private set; }

        protected readonly StartupOptions StartupOptions;
        private readonly string _releaseAssetFilename;

        internal IPowerManagement PowerManagement { get; private set; }
        internal IImageEncoder ImageEncoder { get; private set; }

        protected IProcessFactory ProcessFactory { get; private set; }
        protected ITimerFactory TimerFactory { get; private set; }
        protected ICryptoProvider CryptographyProvider = new CryptographyProvider();
        protected readonly IXmlSerializer XmlSerializer;

        protected ISocketFactory SocketFactory { get; private set; }
        protected ITaskManager TaskManager { get; private set; }
        public IHttpClient HttpClient { get; private set; }
        protected INetworkManager NetworkManager { get; set; }
        public IJsonSerializer JsonSerializer { get; private set; }
        protected IIsoManager IsoManager { get; private set; }

        /// <summary>
        /// Initializes a new instance of the <see cref="ApplicationHost" /> class.
        /// </summary>
        public ApplicationHost(ServerApplicationPaths applicationPaths,
            ILogManager logManager,
            StartupOptions options,
            IFileSystem fileSystem,
            IPowerManagement powerManagement,
            string releaseAssetFilename,
            IEnvironmentInfo environmentInfo,
            IImageEncoder imageEncoder,
            ISystemEvents systemEvents,
            INetworkManager networkManager)
        {
            // hack alert, until common can target .net core
            BaseExtensions.CryptographyProvider = CryptographyProvider;

            XmlSerializer = new MyXmlSerializer(fileSystem, logManager.GetLogger("XmlSerializer"));

            NetworkManager = networkManager;
            EnvironmentInfo = environmentInfo;
            SystemEvents = systemEvents;
            MemoryStreamFactory = new MemoryStreamProvider();

            FailedAssemblies = new List<string>();

            ApplicationPaths = applicationPaths;
            LogManager = logManager;
            FileSystemManager = fileSystem;

            ConfigurationManager = GetConfigurationManager();

            // Initialize this early in case the -v command line option is used
            Logger = LogManager.GetLogger("App");

            StartupOptions = options;
            _releaseAssetFilename = releaseAssetFilename;
            PowerManagement = powerManagement;

            ImageEncoder = imageEncoder;

            SetBaseExceptionMessage();

            fileSystem.AddShortcutHandler(new MbLinkShortcutHandler(fileSystem));
        }

        private Version _version;
        /// <summary>
        /// Gets the current application version
        /// </summary>
        /// <value>The application version.</value>
        public Version ApplicationVersion
        {
            get
            {
                return _version ?? (_version = GetAssembly(GetType()).GetName().Version);
            }
        }

        public virtual bool SupportsRunningAsService
        {
            get
            {
                return false;
            }
        }

        private DeviceId _deviceId;
        public string SystemId
        {
            get
            {
                if (_deviceId == null)
                {
                    _deviceId = new DeviceId(ApplicationPaths, LogManager.GetLogger("SystemId"), FileSystemManager);
                }

                return _deviceId.Value;
            }
        }

        /// <summary>
        /// Gets the name.
        /// </summary>
        /// <value>The name.</value>
        public string Name
        {
            get
            {
                return "Emby Server";
            }
        }

        public virtual bool IsRunningAsService
        {
            get
            {
                return false;
            }
        }

        private Assembly GetAssembly(Type type)
        {
            return type.GetTypeInfo().Assembly;
        }

        public virtual bool SupportsAutoRunAtStartup
        {
            get
            {
                return EnvironmentInfo.OperatingSystem == MediaBrowser.Model.System.OperatingSystem.Windows;
            }
        }

        /// <summary>
        /// Creates an instance of type and resolves all constructor dependancies
        /// </summary>
        /// <param name="type">The type.</param>
        /// <returns>System.Object.</returns>
        public object CreateInstance(Type type)
        {
            try
            {
                return Container.GetInstance(type);
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error creating {0}", ex, type.FullName);

                throw;
            }
        }

        /// <summary>
        /// Creates the instance safe.
        /// </summary>
        /// <param name="type">The type.</param>
        /// <returns>System.Object.</returns>
        protected object CreateInstanceSafe(Type type)
        {
            try
            {
                return Container.GetInstance(type);
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error creating {0}", ex, type.FullName);
                // Don't blow up in release mode
                return null;
            }
        }

        /// <summary>
        /// Registers the specified obj.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="obj">The obj.</param>
        /// <param name="manageLifetime">if set to <c>true</c> [manage lifetime].</param>
        protected void RegisterSingleInstance<T>(T obj, bool manageLifetime = true)
            where T : class
        {
            Container.RegisterSingleton(obj);

            if (manageLifetime)
            {
                var disposable = obj as IDisposable;

                if (disposable != null)
                {
                    DisposableParts.Add(disposable);
                }
            }
        }

        /// <summary>
        /// Registers the single instance.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="func">The func.</param>
        protected void RegisterSingleInstance<T>(Func<T> func)
            where T : class
        {
            Container.RegisterSingleton(func);
        }

        /// <summary>
        /// Resolves this instance.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <returns>``0.</returns>
        public T Resolve<T>()
        {
            return (T)Container.GetRegistration(typeof(T), true).GetInstance();
        }

        /// <summary>
        /// Resolves this instance.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <returns>``0.</returns>
        public T TryResolve<T>()
        {
            var result = Container.GetRegistration(typeof(T), false);

            if (result == null)
            {
                return default(T);
            }
            return (T)result.GetInstance();
        }

        /// <summary>
        /// Loads the assembly.
        /// </summary>
        /// <param name="file">The file.</param>
        /// <returns>Assembly.</returns>
        protected Assembly LoadAssembly(string file)
        {
            try
            {
                return Assembly.Load(File.ReadAllBytes(file));
            }
            catch (Exception ex)
            {
                FailedAssemblies.Add(file);
                Logger.ErrorException("Error loading assembly {0}", ex, file);
                return null;
            }
        }

        /// <summary>
        /// Gets the export types.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <returns>IEnumerable{Type}.</returns>
        public IEnumerable<Type> GetExportTypes<T>()
        {
            var currentType = typeof(T);

            return AllConcreteTypes.Where(currentType.IsAssignableFrom);
        }

        /// <summary>
        /// Gets the exports.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="manageLiftime">if set to <c>true</c> [manage liftime].</param>
        /// <returns>IEnumerable{``0}.</returns>
        public IEnumerable<T> GetExports<T>(bool manageLiftime = true)
        {
            var parts = GetExportTypes<T>()
                .Select(CreateInstanceSafe)
                .Where(i => i != null)
                .Cast<T>()
                .ToList();

            if (manageLiftime)
            {
                lock (DisposableParts)
                {
                    DisposableParts.AddRange(parts.OfType<IDisposable>());
                }
            }

            return parts;
        }

        private void SetBaseExceptionMessage()
        {
            var builder = GetBaseExceptionMessage(ApplicationPaths);

            builder.Insert(0, string.Format("Version: {0}{1}", ApplicationVersion, Environment.NewLine));
            builder.Insert(0, "*** Error Report ***" + Environment.NewLine);

            LogManager.ExceptionMessagePrefix = builder.ToString();
        }

        /// <summary>
        /// Runs the startup tasks.
        /// </summary>
        public async Task RunStartupTasks()
        {
            Resolve<ITaskManager>().AddTasks(GetExports<IScheduledTask>(false));

            ConfigureAutorun();

            ConfigurationManager.ConfigurationUpdated += OnConfigurationUpdated;

            await MediaEncoder.Init().ConfigureAwait(false);

            if (string.IsNullOrWhiteSpace(MediaEncoder.EncoderPath))
            {
                if (ServerConfigurationManager.Configuration.IsStartupWizardCompleted)
                {
                    ServerConfigurationManager.Configuration.IsStartupWizardCompleted = false;
                    ServerConfigurationManager.SaveConfiguration();
                }
            }

            Logger.Info("ServerId: {0}", SystemId);
            Logger.Info("Core startup complete");
            HttpServer.GlobalResponse = null;

            Logger.Info("Post-init migrations complete");

            foreach (var entryPoint in GetExports<IServerEntryPoint>().ToList())
            {
                var name = entryPoint.GetType().FullName;
                Logger.Info("Starting entry point {0}", name);
                var now = DateTime.UtcNow;
                try
                {
                    entryPoint.Run();
                }
                catch (Exception ex)
                {
                    Logger.ErrorException("Error in {0}", ex, name);
                }
                Logger.Info("Entry point completed: {0}. Duration: {1} seconds", name, (DateTime.UtcNow - now).TotalSeconds.ToString(CultureInfo.InvariantCulture), "ImageInfos");
            }
            Logger.Info("All entry points have started");

            LogManager.RemoveConsoleOutput();
        }

        /// <summary>
        /// Configures the autorun.
        /// </summary>
        private void ConfigureAutorun()
        {
            try
            {
                ConfigureAutoRunAtStartup(ConfigurationManager.CommonConfiguration.RunAtStartup);
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error configuring autorun", ex);
            }
        }

        private IJsonSerializer CreateJsonSerializer()
        {
            try
            {
                // https://github.com/ServiceStack/ServiceStack/blob/master/tests/ServiceStack.WebHost.IntegrationTests/Web.config#L4
                Licensing.RegisterLicense("1001-e1JlZjoxMDAxLE5hbWU6VGVzdCBCdXNpbmVzcyxUeXBlOkJ1c2luZXNzLEhhc2g6UHVNTVRPclhvT2ZIbjQ5MG5LZE1mUTd5RUMzQnBucTFEbTE3TDczVEF4QUNMT1FhNXJMOWkzVjFGL2ZkVTE3Q2pDNENqTkQyUktRWmhvUVBhYTBiekJGUUZ3ZE5aZHFDYm9hL3lydGlwUHI5K1JsaTBYbzNsUC85cjVJNHE5QVhldDN6QkE4aTlvdldrdTgyTk1relY2eis2dFFqTThYN2lmc0JveHgycFdjPSxFeHBpcnk6MjAxMy0wMS0wMX0=");
            }
            catch
            {
                // Failing under mono
            }

            return new JsonSerializer(FileSystemManager, LogManager.GetLogger("JsonSerializer"));
        }

        public async Task Init(IProgress<double> progress)
        {
            HttpPort = ServerConfigurationManager.Configuration.HttpServerPortNumber;
            HttpsPort = ServerConfigurationManager.Configuration.HttpsPortNumber;

            // Safeguard against invalid configuration
            if (HttpPort == HttpsPort)
            {
                HttpPort = ServerConfiguration.DefaultHttpPort;
                HttpsPort = ServerConfiguration.DefaultHttpsPort;
            }

            progress.Report(1);

            JsonSerializer = CreateJsonSerializer();

            OnLoggerLoaded(true);
            LogManager.LoggerLoaded += (s, e) => OnLoggerLoaded(false);

            IsFirstRun = !ConfigurationManager.CommonConfiguration.IsStartupWizardCompleted;
            progress.Report(2);

            LogManager.LogSeverity = ConfigurationManager.CommonConfiguration.EnableDebugLevelLogging
                ? LogSeverity.Debug
                : LogSeverity.Info;

            progress.Report(3);

            DiscoverTypes();
            progress.Report(14);

            SetHttpLimit();
            progress.Report(15);

            var innerProgress = new ActionableProgress<double>();
            innerProgress.RegisterAction(p => progress.Report(.8 * p + 15));

            await RegisterResources(innerProgress).ConfigureAwait(false);

            FindParts();
            progress.Report(95);

            await InstallIsoMounters(CancellationToken.None).ConfigureAwait(false);

            progress.Report(100);
        }

        protected virtual void OnLoggerLoaded(bool isFirstLoad)
        {
            Logger.Info("Application version: {0}", ApplicationVersion);

            if (!isFirstLoad)
            {
                LogEnvironmentInfo(Logger, ApplicationPaths, false);
            }

            // Put the app config in the log for troubleshooting purposes
            Logger.LogMultiline("Application configuration:", LogSeverity.Info, new StringBuilder(JsonSerializer.SerializeToString(ConfigurationManager.CommonConfiguration)));

            if (Plugins != null)
            {
                var pluginBuilder = new StringBuilder();

                foreach (var plugin in Plugins)
                {
                    pluginBuilder.AppendLine(string.Format("{0} {1}", plugin.Name, plugin.Version));
                }

                Logger.LogMultiline("Plugins:", LogSeverity.Info, pluginBuilder);
            }
        }

        protected abstract IConnectManager CreateConnectManager();
        protected abstract ISyncManager CreateSyncManager();

        /// <summary>
        /// Registers resources that classes will depend on
        /// </summary>
        protected async Task RegisterResources(IProgress<double> progress)
        {
            RegisterSingleInstance(ConfigurationManager);
            RegisterSingleInstance<IApplicationHost>(this);

            RegisterSingleInstance<IApplicationPaths>(ApplicationPaths);

            RegisterSingleInstance(JsonSerializer);
            RegisterSingleInstance(MemoryStreamFactory);
            RegisterSingleInstance(SystemEvents);

            RegisterSingleInstance(LogManager);
            RegisterSingleInstance(Logger);

            RegisterSingleInstance(EnvironmentInfo);

            RegisterSingleInstance(FileSystemManager);

            HttpClient = new HttpClientManager.HttpClientManager(ApplicationPaths, LogManager.GetLogger("HttpClient"), FileSystemManager, MemoryStreamFactory, GetDefaultUserAgent);
            RegisterSingleInstance(HttpClient);

            RegisterSingleInstance(NetworkManager);

            IsoManager = new IsoManager();
            RegisterSingleInstance(IsoManager);

            TaskManager = new TaskManager(ApplicationPaths, JsonSerializer, LogManager.GetLogger("TaskManager"), FileSystemManager, SystemEvents);
            RegisterSingleInstance(TaskManager);

            RegisterSingleInstance(XmlSerializer);

            ProcessFactory = new ProcessFactory();
            RegisterSingleInstance(ProcessFactory);

            TimerFactory = new TimerFactory();
            RegisterSingleInstance(TimerFactory);

            RegisterSingleInstance(CryptographyProvider);

            SocketFactory = new SocketFactory(LogManager.GetLogger("SocketFactory"));
            RegisterSingleInstance(SocketFactory);

            RegisterSingleInstance(PowerManagement);

            SecurityManager = new PluginSecurityManager(this, HttpClient, JsonSerializer, ApplicationPaths, LogManager, FileSystemManager, CryptographyProvider);
            RegisterSingleInstance(SecurityManager);

            InstallationManager = new InstallationManager(LogManager.GetLogger("InstallationManager"), this, ApplicationPaths, HttpClient, JsonSerializer, SecurityManager, ConfigurationManager, FileSystemManager, CryptographyProvider, PackageRuntime);
            RegisterSingleInstance(InstallationManager);

            ZipClient = new ZipClient(FileSystemManager);
            RegisterSingleInstance(ZipClient);

            RegisterSingleInstance<IHttpResultFactory>(new HttpResultFactory(LogManager, FileSystemManager, JsonSerializer, MemoryStreamFactory));

            RegisterSingleInstance<IServerApplicationHost>(this);
            RegisterSingleInstance<IServerApplicationPaths>(ApplicationPaths);

            RegisterSingleInstance(ServerConfigurationManager);

            IAssemblyInfo assemblyInfo = new AssemblyInfo();
            RegisterSingleInstance<IAssemblyInfo>(assemblyInfo);

            LocalizationManager = new LocalizationManager(ServerConfigurationManager, FileSystemManager, JsonSerializer, LogManager.GetLogger("LocalizationManager"), assemblyInfo, new TextLocalizer());
            StringExtensions.LocalizationManager = LocalizationManager;
            RegisterSingleInstance(LocalizationManager);

            ITextEncoding textEncoding = new TextEncoding.TextEncoding(FileSystemManager, LogManager.GetLogger("TextEncoding"), JsonSerializer);
            RegisterSingleInstance(textEncoding);
            Utilities.EncodingHelper = textEncoding;
            BlurayExaminer = new BdInfoExaminer(FileSystemManager, textEncoding);
            RegisterSingleInstance(BlurayExaminer);

            RegisterSingleInstance<IXmlReaderSettingsFactory>(new XmlReaderSettingsFactory());

            UserDataManager = new UserDataManager(LogManager, ServerConfigurationManager);
            RegisterSingleInstance(UserDataManager);

            UserRepository = GetUserRepository();
            // This is only needed for disposal purposes. If removing this, make sure to have the manager handle disposing it
            RegisterSingleInstance(UserRepository);

            var displayPreferencesRepo = new SqliteDisplayPreferencesRepository(LogManager.GetLogger("SqliteDisplayPreferencesRepository"), JsonSerializer, ApplicationPaths, MemoryStreamFactory);
            DisplayPreferencesRepository = displayPreferencesRepo;
            RegisterSingleInstance(DisplayPreferencesRepository);

            var itemRepo = new SqliteItemRepository(ServerConfigurationManager, JsonSerializer, LogManager.GetLogger("SqliteItemRepository"), MemoryStreamFactory, assemblyInfo, FileSystemManager, EnvironmentInfo, TimerFactory);
            ItemRepository = itemRepo;
            RegisterSingleInstance(ItemRepository);

            AuthenticationRepository = GetAuthenticationRepository();
            RegisterSingleInstance(AuthenticationRepository);

            UserManager = new UserManager(LogManager.GetLogger("UserManager"), ServerConfigurationManager, UserRepository, XmlSerializer, NetworkManager, () => ImageProcessor, () => DtoService, () => ConnectManager, this, JsonSerializer, FileSystemManager, CryptographyProvider);
            RegisterSingleInstance(UserManager);

            LibraryManager = new LibraryManager(Logger, TaskManager, UserManager, ServerConfigurationManager, UserDataManager, () => LibraryMonitor, FileSystemManager, () => ProviderManager, () => UserViewManager);
            RegisterSingleInstance(LibraryManager);

            var musicManager = new MusicManager(LibraryManager);
            RegisterSingleInstance<IMusicManager>(new MusicManager(LibraryManager));

            LibraryMonitor = new LibraryMonitor(LogManager, TaskManager, LibraryManager, ServerConfigurationManager, FileSystemManager, TimerFactory, SystemEvents, EnvironmentInfo);
            RegisterSingleInstance(LibraryMonitor);

            ProviderManager = new ProviderManager(HttpClient, ServerConfigurationManager, LibraryMonitor, LogManager, FileSystemManager, ApplicationPaths, () => LibraryManager, JsonSerializer, MemoryStreamFactory);
            RegisterSingleInstance(ProviderManager);

            RegisterSingleInstance<ISearchEngine>(() => new SearchEngine(LogManager, LibraryManager, UserManager));

            CertificateInfo = GetCertificateInfo(true);
            Certificate = GetCertificate(CertificateInfo);

            HttpServer = HttpServerFactory.CreateServer(this, LogManager, ServerConfigurationManager, NetworkManager, MemoryStreamFactory, "Emby", "web/index.html", textEncoding, SocketFactory, CryptographyProvider, JsonSerializer, XmlSerializer, EnvironmentInfo, Certificate, FileSystemManager, SupportsDualModeSockets);
            HttpServer.GlobalResponse = LocalizationManager.GetLocalizedString("StartupEmbyServerIsLoading");
            RegisterSingleInstance(HttpServer, false);
            progress.Report(10);

            ServerManager = new ServerManager.ServerManager(this, JsonSerializer, LogManager.GetLogger("ServerManager"), ServerConfigurationManager, MemoryStreamFactory, textEncoding);
            RegisterSingleInstance(ServerManager);

            var innerProgress = new ActionableProgress<double>();
            innerProgress.RegisterAction(p => progress.Report((.75 * p) + 15));

            ImageProcessor = GetImageProcessor();
            RegisterSingleInstance(ImageProcessor);

            TVSeriesManager = new TVSeriesManager(UserManager, UserDataManager, LibraryManager, ServerConfigurationManager);
            RegisterSingleInstance(TVSeriesManager);

            SyncManager = CreateSyncManager();
            RegisterSingleInstance(SyncManager);

            DtoService = new DtoService(LogManager.GetLogger("DtoService"), LibraryManager, UserDataManager, ItemRepository, ImageProcessor, ServerConfigurationManager, FileSystemManager, ProviderManager, () => ChannelManager, SyncManager, this, () => DeviceManager, () => MediaSourceManager, () => LiveTvManager);
            RegisterSingleInstance(DtoService);

            var encryptionManager = new EncryptionManager();
            RegisterSingleInstance<IEncryptionManager>(encryptionManager);

            ConnectManager = CreateConnectManager();
            RegisterSingleInstance(ConnectManager);

            DeviceManager = new DeviceManager(new DeviceRepository(ApplicationPaths, JsonSerializer, LogManager.GetLogger("DeviceManager"), FileSystemManager), UserManager, FileSystemManager, LibraryMonitor, ServerConfigurationManager, LogManager.GetLogger("DeviceManager"), NetworkManager);
            RegisterSingleInstance(DeviceManager);

            var newsService = new Emby.Server.Implementations.News.NewsService(ApplicationPaths, JsonSerializer);
            RegisterSingleInstance<INewsService>(newsService);

            progress.Report(15);

            ChannelManager = new ChannelManager(UserManager, DtoService, LibraryManager, LogManager.GetLogger("ChannelManager"), ServerConfigurationManager, FileSystemManager, UserDataManager, JsonSerializer, LocalizationManager, HttpClient, ProviderManager);
            RegisterSingleInstance(ChannelManager);

            MediaSourceManager = new MediaSourceManager(ItemRepository, UserManager, LibraryManager, LogManager.GetLogger("MediaSourceManager"), JsonSerializer, FileSystemManager, UserDataManager, TimerFactory);
            RegisterSingleInstance(MediaSourceManager);

            SessionManager = new SessionManager(UserDataManager, LogManager.GetLogger("SessionManager"), LibraryManager, UserManager, musicManager, DtoService, ImageProcessor, JsonSerializer, this, HttpClient, AuthenticationRepository, DeviceManager, MediaSourceManager, TimerFactory);
            RegisterSingleInstance(SessionManager);

            var dlnaManager = new DlnaManager(XmlSerializer, FileSystemManager, ApplicationPaths, LogManager.GetLogger("Dlna"), JsonSerializer, this, assemblyInfo);
            RegisterSingleInstance<IDlnaManager>(dlnaManager);

            var connectionManager = new ConnectionManager(dlnaManager, ServerConfigurationManager, LogManager.GetLogger("UpnpConnectionManager"), HttpClient, new XmlReaderSettingsFactory());
            RegisterSingleInstance<IConnectionManager>(connectionManager);

            CollectionManager = new CollectionManager(LibraryManager, FileSystemManager, LibraryMonitor, LogManager.GetLogger("CollectionManager"), ProviderManager);
            RegisterSingleInstance(CollectionManager);

            PlaylistManager = new PlaylistManager(LibraryManager, FileSystemManager, LibraryMonitor, LogManager.GetLogger("PlaylistManager"), UserManager, ProviderManager);
            RegisterSingleInstance<IPlaylistManager>(PlaylistManager);

            LiveTvManager = new LiveTvManager(this, ServerConfigurationManager, Logger, ItemRepository, ImageProcessor, UserDataManager, DtoService, UserManager, LibraryManager, TaskManager, LocalizationManager, JsonSerializer, ProviderManager, FileSystemManager, SecurityManager);
            RegisterSingleInstance(LiveTvManager);

            UserViewManager = new UserViewManager(LibraryManager, LocalizationManager, UserManager, ChannelManager, LiveTvManager, ServerConfigurationManager);
            RegisterSingleInstance(UserViewManager);

            var contentDirectory = new ContentDirectory(dlnaManager, UserDataManager, ImageProcessor, LibraryManager, ServerConfigurationManager, UserManager, LogManager.GetLogger("UpnpContentDirectory"), HttpClient, LocalizationManager, ChannelManager, MediaSourceManager, UserViewManager, () => MediaEncoder, new XmlReaderSettingsFactory(), TVSeriesManager);
            RegisterSingleInstance<IContentDirectory>(contentDirectory);

            var mediaRegistrar = new MediaReceiverRegistrar(LogManager.GetLogger("MediaReceiverRegistrar"), HttpClient, ServerConfigurationManager, new XmlReaderSettingsFactory());
            RegisterSingleInstance<IMediaReceiverRegistrar>(mediaRegistrar);

            NotificationManager = new NotificationManager(LogManager, UserManager, ServerConfigurationManager);
            RegisterSingleInstance(NotificationManager);

            SubtitleManager = new SubtitleManager(LogManager.GetLogger("SubtitleManager"), FileSystemManager, LibraryMonitor, LibraryManager, MediaSourceManager);
            RegisterSingleInstance(SubtitleManager);

            RegisterSingleInstance<IDeviceDiscovery>(new DeviceDiscovery(LogManager.GetLogger("IDeviceDiscovery"), ServerConfigurationManager, SocketFactory, TimerFactory));

            ChapterManager = new ChapterManager(LibraryManager, LogManager.GetLogger("ChapterManager"), ServerConfigurationManager, ItemRepository);
            RegisterSingleInstance(ChapterManager);

            await RegisterMediaEncoder(innerProgress).ConfigureAwait(false);
            progress.Report(90);

            EncodingManager = new EncodingManager(FileSystemManager, Logger, MediaEncoder, ChapterManager, LibraryManager);
            RegisterSingleInstance(EncodingManager);

            var sharingRepo = new SharingRepository(LogManager.GetLogger("SharingRepository"), ApplicationPaths);
            sharingRepo.Initialize();
            // This is only needed for disposal purposes. If removing this, make sure to have the manager handle disposing it
            RegisterSingleInstance<ISharingRepository>(sharingRepo);
            RegisterSingleInstance<ISharingManager>(new SharingManager(sharingRepo, ServerConfigurationManager, LibraryManager, this));

            var activityLogRepo = GetActivityLogRepository();
            RegisterSingleInstance(activityLogRepo);
            RegisterSingleInstance<IActivityManager>(new ActivityManager(LogManager.GetLogger("ActivityManager"), activityLogRepo, UserManager));

            var authContext = new AuthorizationContext(AuthenticationRepository, ConnectManager);
            RegisterSingleInstance<IAuthorizationContext>(authContext);
            RegisterSingleInstance<ISessionContext>(new SessionContext(UserManager, authContext, SessionManager));

            AuthService = new AuthService(UserManager, authContext, ServerConfigurationManager, ConnectManager, SessionManager, DeviceManager);
            RegisterSingleInstance<IAuthService>(AuthService);

            SubtitleEncoder = new SubtitleEncoder(LibraryManager, LogManager.GetLogger("SubtitleEncoder"), ApplicationPaths, FileSystemManager, MediaEncoder, JsonSerializer, HttpClient, MediaSourceManager, MemoryStreamFactory, ProcessFactory, textEncoding);
            RegisterSingleInstance(SubtitleEncoder);

            displayPreferencesRepo.Initialize();

            var userDataRepo = new SqliteUserDataRepository(LogManager.GetLogger("SqliteUserDataRepository"), ApplicationPaths, FileSystemManager);

            ((UserDataManager)UserDataManager).Repository = userDataRepo;
            itemRepo.Initialize(userDataRepo);
            ((LibraryManager)LibraryManager).ItemRepository = ItemRepository;
            ConfigureNotificationsRepository();
            progress.Report(100);

            SetStaticProperties();

            ((UserManager)UserManager).Initialize();
        }

        protected virtual string PackageRuntime
        {
            get
            {
                return "netframework";
            }
        }

        public static void LogEnvironmentInfo(ILogger logger, IApplicationPaths appPaths, bool isStartup)
        {
            logger.LogMultiline("Emby", LogSeverity.Info, GetBaseExceptionMessage(appPaths));
        }

        protected static StringBuilder GetBaseExceptionMessage(IApplicationPaths appPaths)
        {
            var builder = new StringBuilder();

            builder.AppendLine(string.Format("Command line: {0}", string.Join(" ", Environment.GetCommandLineArgs())));

            builder.AppendLine(string.Format("Operating system: {0}", Environment.OSVersion));
            builder.AppendLine(string.Format("64-Bit OS: {0}", Environment.Is64BitOperatingSystem));
            builder.AppendLine(string.Format("64-Bit Process: {0}", Environment.Is64BitProcess));

            Type type = Type.GetType("Mono.Runtime");
            if (type != null)
            {
                MethodInfo displayName = type.GetMethod("GetDisplayName", BindingFlags.NonPublic | BindingFlags.Static);
                if (displayName != null)
                {
                    builder.AppendLine("Mono: " + displayName.Invoke(null, null));
                }
            }

            builder.AppendLine(string.Format("Processor count: {0}", Environment.ProcessorCount));
            builder.AppendLine(string.Format("Program data path: {0}", appPaths.ProgramDataPath));
            builder.AppendLine(string.Format("Application directory: {0}", appPaths.ProgramSystemPath));

            return builder;
        }

        private void SetHttpLimit()
        {
            try
            {
                // Increase the max http request limit
                ServicePointManager.DefaultConnectionLimit = Math.Max(96, ServicePointManager.DefaultConnectionLimit);
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error setting http limit", ex);
            }
        }

        /// <summary>
        /// Installs the iso mounters.
        /// </summary>
        /// <param name="cancellationToken">The cancellation token.</param>
        /// <returns>Task.</returns>
        private async Task InstallIsoMounters(CancellationToken cancellationToken)
        {
            var list = new List<IIsoMounter>();

            foreach (var isoMounter in GetExports<IIsoMounter>())
            {
                try
                {
                    if (isoMounter.RequiresInstallation && !isoMounter.IsInstalled)
                    {
                        Logger.Info("Installing {0}", isoMounter.Name);

                        await isoMounter.Install(cancellationToken).ConfigureAwait(false);
                    }

                    list.Add(isoMounter);
                }
                catch (Exception ex)
                {
                    Logger.ErrorException("{0} failed to load.", ex, isoMounter.Name);
                }
            }

            IsoManager.AddParts(list);
        }

        private string GetDefaultUserAgent()
        {
            var name = FormatAttribute(Name);

            return name + "/" + ApplicationVersion;
        }

        private string FormatAttribute(string str)
        {
            var arr = str.ToCharArray();

            arr = Array.FindAll<char>(arr, (c => (char.IsLetterOrDigit(c)
                                                  || char.IsWhiteSpace(c))));

            var result = new string(arr);

            if (string.IsNullOrWhiteSpace(result))
            {
                result = "Emby";
            }

            return result;
        }

        protected virtual bool SupportsDualModeSockets
        {
            get
            {
                return true;
            }
        }

        private ICertificate GetCertificate(CertificateInfo info)
        {
            var certificateLocation = info == null ? null : info.Path;

            if (string.IsNullOrWhiteSpace(certificateLocation))
            {
                return null;
            }

            try
            {
                if (!FileSystemManager.FileExists(certificateLocation))
                {
                    return null;
                }

                // Don't use an empty string password
                var password = string.IsNullOrWhiteSpace(info.Password) ? null : info.Password;

                X509Certificate2 localCert = new X509Certificate2(certificateLocation, password);
                //localCert.PrivateKey = PrivateKey.CreateFromFile(pvk_file).RSA;
                if (!localCert.HasPrivateKey)
                {
                    //throw new FileNotFoundException("Secure requested, no private key included", certificateLocation);
                    return null;
                }

                return new Certificate(localCert);
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error loading cert from {0}", ex, certificateLocation);
                return null;
            }
        }

        private IImageProcessor GetImageProcessor()
        {
            return new ImageProcessor(LogManager.GetLogger("ImageProcessor"), ServerConfigurationManager.ApplicationPaths, FileSystemManager, JsonSerializer, ImageEncoder, () => LibraryManager, TimerFactory, () => MediaEncoder);
        }

        protected virtual FFMpegInstallInfo GetFfmpegInstallInfo()
        {
            var info = new FFMpegInstallInfo();

            // Windows builds: http://ffmpeg.zeranoe.com/builds/
            // Linux builds: http://johnvansickle.com/ffmpeg/
            // OS X builds: http://ffmpegmac.net/
            // OS X x64: http://www.evermeet.cx/ffmpeg/

            if (EnvironmentInfo.OperatingSystem == MediaBrowser.Model.System.OperatingSystem.Linux)
            {
                info.FFMpegFilename = "ffmpeg";
                info.FFProbeFilename = "ffprobe";
                info.ArchiveType = "7z";
                info.Version = "20170308";
                info.DownloadUrls = GetLinuxDownloadUrls();
            }
            else if (EnvironmentInfo.OperatingSystem == MediaBrowser.Model.System.OperatingSystem.Windows)
            {
                info.FFMpegFilename = "ffmpeg.exe";
                info.FFProbeFilename = "ffprobe.exe";
                info.Version = "20170308";
                info.ArchiveType = "7z";
                info.DownloadUrls = GetWindowsDownloadUrls();
            }
            else if (EnvironmentInfo.OperatingSystem == MediaBrowser.Model.System.OperatingSystem.OSX)
            {
                info.FFMpegFilename = "ffmpeg";
                info.FFProbeFilename = "ffprobe";
                info.ArchiveType = "7z";
                info.Version = "20170308";
                info.DownloadUrls = GetMacDownloadUrls();
            }
            else
            {
                // No version available - user requirement
                info.DownloadUrls = new string[] { };
            }

            return info;
        }

        private string[] GetMacDownloadUrls()
        {
            switch (EnvironmentInfo.SystemArchitecture)
            {
                case MediaBrowser.Model.System.Architecture.X64:
                    return new[]
                    {
                        "https://embydata.com/downloads/ffmpeg/osx/ffmpeg-x64-20170308.7z"
                    };
            }

            return new string[] { };
        }

        private string[] GetWindowsDownloadUrls()
        {
            switch (EnvironmentInfo.SystemArchitecture)
            {
                case MediaBrowser.Model.System.Architecture.X64:
                    return new[]
                    {
                        "https://embydata.com/downloads/ffmpeg/windows/ffmpeg-20170308-win64.7z"
                    };
                case MediaBrowser.Model.System.Architecture.X86:
                    return new[]
                    {
                        "https://embydata.com/downloads/ffmpeg/windows/ffmpeg-20170308-win32.7z"
                    };
            }

            return new string[] { };
        }

        private string[] GetLinuxDownloadUrls()
        {
            switch (EnvironmentInfo.SystemArchitecture)
            {
                case MediaBrowser.Model.System.Architecture.X64:
                    return new[]
                    {
                        "https://embydata.com/downloads/ffmpeg/linux/ffmpeg-git-20170301-64bit-static.7z"
                    };
                case MediaBrowser.Model.System.Architecture.X86:
                    return new[]
                    {
                        "https://embydata.com/downloads/ffmpeg/linux/ffmpeg-git-20170301-32bit-static.7z"
                    };
            }

            return new string[] { };
        }

        /// <summary>
        /// Registers the media encoder.
        /// </summary>
        /// <returns>Task.</returns>
        private async Task RegisterMediaEncoder(IProgress<double> progress)
        {
            string encoderPath = null;
            string probePath = null;

            var info = await new FFMpegLoader(Logger, ApplicationPaths, HttpClient, ZipClient, FileSystemManager, GetFfmpegInstallInfo())
                .GetFFMpegInfo(StartupOptions, progress).ConfigureAwait(false);

            encoderPath = info.EncoderPath;
            probePath = info.ProbePath;
            var hasExternalEncoder = string.Equals(info.Version, "external", StringComparison.OrdinalIgnoreCase);

            var mediaEncoder = new MediaEncoding.Encoder.MediaEncoder(LogManager.GetLogger("MediaEncoder"),
                JsonSerializer,
                encoderPath,
                probePath,
                hasExternalEncoder,
                ServerConfigurationManager,
                FileSystemManager,
                LiveTvManager,
                IsoManager,
                LibraryManager,
                ChannelManager,
                SessionManager,
                () => SubtitleEncoder,
                () => MediaSourceManager,
                HttpClient,
                ZipClient,
                MemoryStreamFactory,
                ProcessFactory,
                (Environment.ProcessorCount > 2 ? 14000 : 40000),
                EnvironmentInfo.OperatingSystem == MediaBrowser.Model.System.OperatingSystem.Windows,
                EnvironmentInfo,
                BlurayExaminer);

            MediaEncoder = mediaEncoder;
            RegisterSingleInstance(MediaEncoder);
        }

        /// <summary>
        /// Gets the user repository.
        /// </summary>
        /// <returns>Task{IUserRepository}.</returns>
        private IUserRepository GetUserRepository()
        {
            var repo = new SqliteUserRepository(LogManager.GetLogger("SqliteUserRepository"), ApplicationPaths, JsonSerializer, MemoryStreamFactory);

            repo.Initialize();

            return repo;
        }

        private IAuthenticationRepository GetAuthenticationRepository()
        {
            var repo = new AuthenticationRepository(LogManager.GetLogger("AuthenticationRepository"), ServerConfigurationManager.ApplicationPaths);

            repo.Initialize();

            return repo;
        }

        private IActivityRepository GetActivityLogRepository()
        {
            var repo = new ActivityRepository(LogManager.GetLogger("ActivityRepository"), ServerConfigurationManager.ApplicationPaths);

            repo.Initialize();

            return repo;
        }

        /// <summary>
        /// Configures the repositories.
        /// </summary>
        private void ConfigureNotificationsRepository()
        {
            var repo = new SqliteNotificationsRepository(LogManager.GetLogger("SqliteNotificationsRepository"), ServerConfigurationManager.ApplicationPaths, FileSystemManager);

            repo.Initialize();

            NotificationsRepository = repo;

            RegisterSingleInstance(NotificationsRepository);
        }

        /// <summary>
        /// Dirty hacks
        /// </summary>
        private void SetStaticProperties()
        {
            // For now there's no real way to inject these properly
            BaseItem.Logger = LogManager.GetLogger("BaseItem");
            BaseItem.ConfigurationManager = ServerConfigurationManager;
            BaseItem.LibraryManager = LibraryManager;
            BaseItem.ProviderManager = ProviderManager;
            BaseItem.LocalizationManager = LocalizationManager;
            BaseItem.ItemRepository = ItemRepository;
            User.XmlSerializer = XmlSerializer;
            User.UserManager = UserManager;
            Folder.UserManager = UserManager;
            BaseItem.FileSystem = FileSystemManager;
            BaseItem.UserDataManager = UserDataManager;
            BaseItem.ChannelManager = ChannelManager;
            BaseItem.LiveTvManager = LiveTvManager;
            Folder.UserViewManager = UserViewManager;
            UserView.TVSeriesManager = TVSeriesManager;
            UserView.PlaylistManager = PlaylistManager;
            BaseItem.CollectionManager = CollectionManager;
            BaseItem.MediaSourceManager = MediaSourceManager;
            CollectionFolder.XmlSerializer = XmlSerializer;
            Utilities.CryptographyProvider = CryptographyProvider;
            AuthenticatedAttribute.AuthService = AuthService;
        }

        /// <summary>
        /// Finds the parts.
        /// </summary>
        protected void FindParts()
        {
            if (!ServerConfigurationManager.Configuration.IsPortAuthorized)
            {
                RegisterServerWithAdministratorAccess();
                ServerConfigurationManager.Configuration.IsPortAuthorized = true;
                ConfigurationManager.SaveConfiguration();
            }

            RegisterModules();

            ConfigurationManager.AddParts(GetExports<IConfigurationFactory>());
            Plugins = GetExports<IPlugin>().Select(LoadPlugin).Where(i => i != null).ToArray();

            HttpServer.Init(GetExports<IService>(false));

            ServerManager.AddWebSocketListeners(GetExports<IWebSocketListener>(false));

            StartServer();

            LibraryManager.AddParts(GetExports<IResolverIgnoreRule>(),
                GetExports<IVirtualFolderCreator>(),
                GetExports<IItemResolver>(),
                GetExports<IIntroProvider>(),
                GetExports<IBaseItemComparer>(),
                GetExports<ILibraryPostScanTask>());

            ProviderManager.AddParts(GetExports<IImageProvider>(),
                GetExports<IMetadataService>(),
                GetExports<IMetadataProvider>(),
                GetExports<IMetadataSaver>(),
                GetExports<IExternalId>());

            ImageProcessor.AddParts(GetExports<IImageEnhancer>());

            LiveTvManager.AddParts(GetExports<ILiveTvService>(), GetExports<ITunerHost>(), GetExports<IListingsProvider>());

            SubtitleManager.AddParts(GetExports<ISubtitleProvider>());

            SessionManager.AddParts(GetExports<ISessionControllerFactory>());

            ChannelManager.AddParts(GetExports<IChannel>());

            MediaSourceManager.AddParts(GetExports<IMediaSourceProvider>());

            NotificationManager.AddParts(GetExports<INotificationService>(), GetExports<INotificationTypeFactory>());
            SyncManager.AddParts(GetExports<ISyncProvider>());
        }

        private IPlugin LoadPlugin(IPlugin plugin)
        {
            try
            {
                var assemblyPlugin = plugin as IPluginAssembly;

                if (assemblyPlugin != null)
                {
                    var assembly = plugin.GetType().Assembly;
                    var assemblyName = assembly.GetName();

                    var assemblyFileName = assemblyName.Name + ".dll";
                    var assemblyFilePath = Path.Combine(ApplicationPaths.PluginsPath, assemblyFileName);

                    assemblyPlugin.SetAttributes(assemblyFilePath, assemblyFileName, assemblyName.Version);

                    try
                    {
                        var idAttributes = assembly.GetCustomAttributes(typeof(GuidAttribute), true);
                        if (idAttributes.Length > 0)
                        {
                            var attribute = (GuidAttribute)idAttributes[0];
                            var assemblyId = new Guid(attribute.Value);

                            assemblyPlugin.SetId(assemblyId);
                        }
                    }
                    catch (Exception ex)
                    {
                        Logger.ErrorException("Error getting plugin Id from {0}.", ex, plugin.GetType().FullName);
                    }
                }

                var isFirstRun = !File.Exists(plugin.ConfigurationFilePath);
                plugin.SetStartupInfo(isFirstRun, File.GetLastWriteTimeUtc, s => Directory.CreateDirectory(s));
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error loading plugin {0}", ex, plugin.GetType().FullName);
                return null;
            }

            return plugin;
        }

        /// <summary>
        /// Discovers the types.
        /// </summary>
        protected void DiscoverTypes()
        {
            FailedAssemblies.Clear();

            var assemblies = GetComposablePartAssemblies().ToList();

            foreach (var assembly in assemblies)
            {
                Logger.Info("Loading {0}", assembly.FullName);
            }

            AllConcreteTypes = assemblies
                .SelectMany(GetTypes)
                .Where(t => t.IsClass && !t.IsAbstract && !t.IsInterface && !t.IsGenericType)
                .ToArray();
        }

        /// <summary>
        /// Gets a list of types within an assembly
        /// This will handle situations that would normally throw an exception - such as a type within the assembly that depends on some other non-existant reference
        /// </summary>
        /// <param name="assembly">The assembly.</param>
        /// <returns>IEnumerable{Type}.</returns>
        /// <exception cref="System.ArgumentNullException">assembly</exception>
        protected List<Type> GetTypes(Assembly assembly)
        {
            if (assembly == null)
            {
                return new List<Type>();
            }

            try
            {
                // This null checking really shouldn't be needed but adding it due to some
                // unhandled exceptions in mono 5.0 that are a little hard to hunt down
                var types = assembly.GetTypes() ?? new Type[] { };
                return types.Where(t => t != null).ToList();
            }
            catch (ReflectionTypeLoadException ex)
            {
                if (ex.LoaderExceptions != null)
                {
                    foreach (var loaderException in ex.LoaderExceptions)
                    {
                        if (loaderException != null)
                        {
                            Logger.Error("LoaderException: " + loaderException.Message);
                        }
                    }
                }

                // If it fails we can still get a list of the Types it was able to resolve
                var types = ex.Types ?? new Type[] { };
                return types.Where(t => t != null).ToList();
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error loading types from assembly", ex);

                return new List<Type>();
            }
        }

        private CertificateInfo CertificateInfo { get; set; }
        private ICertificate Certificate { get; set; }

        private IEnumerable<string> GetUrlPrefixes()
        {
            var hosts = new List<string>();

            hosts.Add("+");

            return hosts.SelectMany(i =>
            {
                var prefixes = new List<string>
                {
                    "http://"+i+":" + HttpPort + "/"
                };

                if (CertificateInfo != null)
                {
                    prefixes.Add("https://" + i + ":" + HttpsPort + "/");
                }

                return prefixes;
            });
        }

        /// <summary>
        /// Starts the server.
        /// </summary>
        private void StartServer()
        {
            try
            {
                ServerManager.Start(GetUrlPrefixes().ToArray());
                return;
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error starting http server", ex);

                if (HttpPort == ServerConfiguration.DefaultHttpPort)
                {
                    throw;
                }
            }

            HttpPort = ServerConfiguration.DefaultHttpPort;

            try
            {
                ServerManager.Start(GetUrlPrefixes().ToArray());
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error starting http server", ex);

                throw;
            }
        }

        private CertificateInfo GetCertificateInfo(bool generateCertificate)
        {
            if (!string.IsNullOrWhiteSpace(ServerConfigurationManager.Configuration.CertificatePath))
            {
                // Custom cert
                return new CertificateInfo
                {
                    Path = ServerConfigurationManager.Configuration.CertificatePath,
                    Password = ServerConfigurationManager.Configuration.CertificatePassword
                };
            }

            // Generate self-signed cert
            var certHost = GetHostnameFromExternalDns(ServerConfigurationManager.Configuration.WanDdns);
            var certPath = Path.Combine(ServerConfigurationManager.ApplicationPaths.ProgramDataPath, "ssl", "cert_" + (certHost + "2").GetMD5().ToString("N") + ".pfx");
            var password = "embycert";

            if (generateCertificate)
            {
                if (!FileSystemManager.FileExists(certPath))
                {
                    FileSystemManager.CreateDirectory(FileSystemManager.GetDirectoryName(certPath));

                    try
                    {
                        CertificateGenerator.CreateSelfSignCertificatePfx(certPath, certHost, password, Logger);
                    }
                    catch (Exception ex)
                    {
                        Logger.ErrorException("Error creating ssl cert", ex);
                        return null;
                    }
                }
            }

            return new CertificateInfo
            {
                Path = certPath,
                Password = password
            };
        }

        /// <summary>
        /// Called when [configuration updated].
        /// </summary>
        /// <param name="sender">The sender.</param>
        /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
        protected void OnConfigurationUpdated(object sender, EventArgs e)
        {
            ConfigureAutorun();

            var requiresRestart = false;

            // Don't do anything if these haven't been set yet
            if (HttpPort != 0 && HttpsPort != 0)
            {
                // Need to restart if ports have changed
                if (ServerConfigurationManager.Configuration.HttpServerPortNumber != HttpPort ||
                    ServerConfigurationManager.Configuration.HttpsPortNumber != HttpsPort)
                {
                    if (ServerConfigurationManager.Configuration.IsPortAuthorized)
                    {
                        ServerConfigurationManager.Configuration.IsPortAuthorized = false;
                        ServerConfigurationManager.SaveConfiguration();

                        requiresRestart = true;
                    }
                }
            }

            if (!HttpServer.UrlPrefixes.SequenceEqual(GetUrlPrefixes(), StringComparer.OrdinalIgnoreCase))
            {
                requiresRestart = true;
            }

            var currentCertPath = CertificateInfo == null ? null : CertificateInfo.Path;
            var newCertInfo = GetCertificateInfo(false);
            var newCertPath = newCertInfo == null ? null : newCertInfo.Path;

            if (!string.Equals(currentCertPath, newCertPath, StringComparison.OrdinalIgnoreCase))
            {
                requiresRestart = true;
            }

            if (requiresRestart)
            {
                Logger.Info("App needs to be restarted due to configuration change.");

                NotifyPendingRestart();
            }
        }

        /// <summary>
        /// Notifies that the kernel that a change has been made that requires a restart
        /// </summary>
        public void NotifyPendingRestart()
        {
            Logger.Info("App needs to be restarted.");

            var changed = !HasPendingRestart;

            HasPendingRestart = true;

            if (changed)
            {
                EventHelper.QueueEventIfNotNull(HasPendingRestartChanged, this, EventArgs.Empty, Logger);
            }
        }

        /// <summary>
        /// Restarts this instance.
        /// </summary>
        public async Task Restart()
        {
            if (!CanSelfRestart)
            {
                throw new PlatformNotSupportedException("The server is unable to self-restart. Please restart manually.");
            }

            try
            {
                await SessionManager.SendServerRestartNotification(CancellationToken.None).ConfigureAwait(false);
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error sending server restart notification", ex);
            }

            Logger.Info("Calling RestartInternal");

            RestartInternal();
        }

        protected abstract void RestartInternal();

        /// <summary>
        /// Gets the composable part assemblies.
        /// </summary>
        /// <returns>IEnumerable{Assembly}.</returns>
        protected IEnumerable<Assembly> GetComposablePartAssemblies()
        {
            var list = GetPluginAssemblies()
                .ToList();

            // Gets all plugin assemblies by first reading all bytes of the .dll and calling Assembly.Load against that
            // This will prevent the .dll file from getting locked, and allow us to replace it when needed

            // Include composable parts in the Api assembly 
            list.Add(GetAssembly(typeof(ApiEntryPoint)));

            // Include composable parts in the Dashboard assembly 
            list.Add(GetAssembly(typeof(DashboardService)));

            // Include composable parts in the Model assembly 
            list.Add(GetAssembly(typeof(SystemInfo)));

            // Include composable parts in the Common assembly 
            list.Add(GetAssembly(typeof(IApplicationHost)));

            // Include composable parts in the Controller assembly 
            list.Add(GetAssembly(typeof(IServerApplicationHost)));

            // Include composable parts in the Providers assembly 
            list.Add(GetAssembly(typeof(ProviderUtils)));

            // Include composable parts in the Photos assembly 
            list.Add(GetAssembly(typeof(PhotoProvider)));

            // Emby.Server implementations
            list.Add(GetAssembly(typeof(InstallationManager)));

            // MediaEncoding
            list.Add(GetAssembly(typeof(MediaEncoding.Encoder.MediaEncoder)));

            // Dlna 
            list.Add(GetAssembly(typeof(DlnaEntryPoint)));

            // Local metadata 
            list.Add(GetAssembly(typeof(BoxSetXmlSaver)));

            // Xbmc 
            list.Add(GetAssembly(typeof(ArtistNfoProvider)));

            list.AddRange(GetAssembliesWithPartsInternal());

            return list.ToList();
        }

        protected abstract List<Assembly> GetAssembliesWithPartsInternal();

        /// <summary>
        /// Gets the plugin assemblies.
        /// </summary>
        /// <returns>IEnumerable{Assembly}.</returns>
        private IEnumerable<Assembly> GetPluginAssemblies()
        {
            try
            {
                return Directory.EnumerateFiles(ApplicationPaths.PluginsPath, "*.dll", SearchOption.TopDirectoryOnly)
                    .Where(EnablePlugin)
                    .Select(LoadAssembly)
                    .Where(a => a != null)
                    .ToList();
            }
            catch (DirectoryNotFoundException)
            {
                return new List<Assembly>();
            }
        }

        private bool EnablePlugin(string path)
        {
            var filename = Path.GetFileName(path);

            var exclude = new[]
            {
                "mbplus.dll",
                "mbintros.dll",
                "embytv.dll"
            };

            return !exclude.Contains(filename ?? string.Empty, StringComparer.OrdinalIgnoreCase);
        }

        /// <summary>
        /// Gets the system status.
        /// </summary>
        /// <returns>SystemInfo.</returns>
        public async Task<SystemInfo> GetSystemInfo()
        {
            var localAddress = await GetLocalApiUrl().ConfigureAwait(false);

            return new SystemInfo
            {
                HasPendingRestart = HasPendingRestart,
                Version = ApplicationVersion.ToString(),
                WebSocketPortNumber = HttpPort,
                FailedPluginAssemblies = FailedAssemblies.ToArray(),
                InProgressInstallations = InstallationManager.CurrentInstallations.Select(i => i.Item1).ToArray(),
                CompletedInstallations = InstallationManager.CompletedInstallations.ToArray(),
                Id = SystemId,
                ProgramDataPath = ApplicationPaths.ProgramDataPath,
                LogPath = ApplicationPaths.LogDirectoryPath,
                ItemsByNamePath = ApplicationPaths.ItemsByNamePath,
                InternalMetadataPath = ApplicationPaths.InternalMetadataPath,
                CachePath = ApplicationPaths.CachePath,
                MacAddress = GetMacAddress(),
                HttpServerPortNumber = HttpPort,
                SupportsHttps = SupportsHttps,
                HttpsPortNumber = HttpsPort,
                OperatingSystem = EnvironmentInfo.OperatingSystem.ToString(),
                OperatingSystemDisplayName = OperatingSystemDisplayName,
                CanSelfRestart = CanSelfRestart,
                CanSelfUpdate = CanSelfUpdate,
                WanAddress = ConnectManager.WanApiAddress,
                HasUpdateAvailable = HasUpdateAvailable,
                SupportsAutoRunAtStartup = SupportsAutoRunAtStartup,
                TranscodingTempPath = ApplicationPaths.TranscodingTempPath,
                SupportsRunningAsService = SupportsRunningAsService,
                ServerName = FriendlyName,
                LocalAddress = localAddress,
                SupportsLibraryMonitor = true,
                EncoderLocationType = MediaEncoder.EncoderLocationType,
                SystemArchitecture = EnvironmentInfo.SystemArchitecture,
                SystemUpdateLevel = SystemUpdateLevel,
                PackageName = StartupOptions.GetOption("-package")
            };
        }

        public bool EnableHttps
        {
            get
            {
                return SupportsHttps && ServerConfigurationManager.Configuration.EnableHttps;
            }
        }

        public bool SupportsHttps
        {
            get { return Certificate != null; }
        }

        public async Task<string> GetLocalApiUrl()
        {
            try
            {
                // Return the first matched address, if found, or the first known local address
                var address = (await GetLocalIpAddresses().ConfigureAwait(false)).FirstOrDefault(i => !i.Equals(IpAddressInfo.Loopback) && !i.Equals(IpAddressInfo.IPv6Loopback));

                if (address != null)
                {
                    return GetLocalApiUrl(address);
                }

                return null;
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error getting local Ip address information", ex);
            }

            return null;
        }

        public string GetLocalApiUrl(IpAddressInfo ipAddress)
        {
            if (ipAddress.AddressFamily == IpAddressFamily.InterNetworkV6)
            {
                return GetLocalApiUrl("[" + ipAddress.Address + "]");
            }

            return GetLocalApiUrl(ipAddress.Address);
        }

        public string GetLocalApiUrl(string host)
        {
            return string.Format("http://{0}:{1}",
                host,
                HttpPort.ToString(CultureInfo.InvariantCulture));
        }

        public async Task<List<IpAddressInfo>> GetLocalIpAddresses()
        {
            var addresses = ServerConfigurationManager
                .Configuration
                .LocalNetworkAddresses
                .Select(NormalizeConfiguredLocalAddress)
                .Where(i => i != null)
                .ToList();

            if (addresses.Count == 0)
            {
                addresses.AddRange(NetworkManager.GetLocalIpAddresses());

                var list = new List<IpAddressInfo>();

                foreach (var address in addresses)
                {
                    var valid = await IsIpAddressValidAsync(address).ConfigureAwait(false);
                    if (valid)
                    {
                        list.Add(address);
                    }
                }

                addresses = list;
            }

            return addresses;
        }

        private IpAddressInfo NormalizeConfiguredLocalAddress(string address)
        {
            var index = address.Trim('/').IndexOf('/');

            if (index != -1)
            {
                address = address.Substring(index + 1);
            }

            IpAddressInfo result;
            if (NetworkManager.TryParseIpAddress(address.Trim('/'), out result))
            {
                return result;
            }
            return null;
        }

        private readonly ConcurrentDictionary<string, bool> _validAddressResults = new ConcurrentDictionary<string, bool>(StringComparer.OrdinalIgnoreCase);
        private DateTime _lastAddressCacheClear;
        private async Task<bool> IsIpAddressValidAsync(IpAddressInfo address)
        {
            if (address.Equals(IpAddressInfo.Loopback) ||
                address.Equals(IpAddressInfo.IPv6Loopback))
            {
                return true;
            }

            var apiUrl = GetLocalApiUrl(address);
            apiUrl += "/system/ping";

            if ((DateTime.UtcNow - _lastAddressCacheClear).TotalMinutes >= 15)
            {
                _lastAddressCacheClear = DateTime.UtcNow;
                _validAddressResults.Clear();
            }

            bool cachedResult;
            if (_validAddressResults.TryGetValue(apiUrl, out cachedResult))
            {
                return cachedResult;
            }

            try
            {
                using (var response = await HttpClient.SendAsync(new HttpRequestOptions
                {
                    Url = apiUrl,
                    LogErrorResponseBody = false,
                    LogErrors = false,
                    LogRequest = false,
                    TimeoutMs = 30000,
                    BufferContent = false

                }, "POST").ConfigureAwait(false))
                {
                    using (var reader = new StreamReader(response.Content))
                    {
                        var result = reader.ReadToEnd();
                        var valid = string.Equals(Name, result, StringComparison.OrdinalIgnoreCase);

                        _validAddressResults.AddOrUpdate(apiUrl, valid, (k, v) => valid);
                        //Logger.Debug("Ping test result to {0}. Success: {1}", apiUrl, valid);
                        return valid;
                    }
                }
            }
            catch
            {
                //Logger.Debug("Ping test result to {0}. Success: {1}", apiUrl, false);

                _validAddressResults.AddOrUpdate(apiUrl, false, (k, v) => false);
                return false;
            }
        }

        public string FriendlyName
        {
            get
            {
                return string.IsNullOrWhiteSpace(ServerConfigurationManager.Configuration.ServerName)
                    ? Environment.MachineName
                    : ServerConfigurationManager.Configuration.ServerName;
            }
        }

        public int HttpPort { get; private set; }

        public int HttpsPort { get; private set; }

        /// <summary>
        /// Gets the mac address.
        /// </summary>
        /// <returns>System.String.</returns>
        private string GetMacAddress()
        {
            try
            {
                return NetworkManager.GetMacAddress();
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error getting mac address", ex);
                return null;
            }
        }

        /// <summary>
        /// Shuts down.
        /// </summary>
        public async Task Shutdown()
        {
            try
            {
                await SessionManager.SendServerShutdownNotification(CancellationToken.None).ConfigureAwait(false);
            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error sending server shutdown notification", ex);
            }

            ShutdownInternal();
        }

        protected abstract void ShutdownInternal();

        /// <summary>
        /// Registers the server with administrator access.
        /// </summary>
        private void RegisterServerWithAdministratorAccess()
        {
            Logger.Info("Requesting administrative access to authorize http server");

            try
            {
                AuthorizeServer();
            }
            catch (NotImplementedException)
            {

            }
            catch (Exception ex)
            {
                Logger.ErrorException("Error authorizing server", ex);
            }
        }

        protected virtual void AuthorizeServer()
        {
            throw new NotImplementedException();
        }

        public event EventHandler HasUpdateAvailableChanged;

        private bool _hasUpdateAvailable;
        public bool HasUpdateAvailable
        {
            get { return _hasUpdateAvailable; }
            set
            {
                var fireEvent = value && !_hasUpdateAvailable;

                _hasUpdateAvailable = value;

                if (fireEvent)
                {
                    EventHelper.FireEventIfNotNull(HasUpdateAvailableChanged, this, EventArgs.Empty, Logger);
                }
            }
        }

        /// <summary>
        /// Removes the plugin.
        /// </summary>
        /// <param name="plugin">The plugin.</param>
        public void RemovePlugin(IPlugin plugin)
        {
            var list = Plugins.ToList();
            list.Remove(plugin);
            Plugins = list.ToArray();
        }

        /// <summary>
        /// Checks for update.
        /// </summary>
        /// <param name="cancellationToken">The cancellation token.</param>
        /// <param name="progress">The progress.</param>
        /// <returns>Task{CheckForUpdateResult}.</returns>
        public async Task<CheckForUpdateResult> CheckForApplicationUpdate(CancellationToken cancellationToken, IProgress<double> progress)
        {
            var cacheLength = TimeSpan.FromHours(1);
            var updateLevel = SystemUpdateLevel;

            if (updateLevel != PackageVersionClass.Release)
            {
                cacheLength = TimeSpan.FromMinutes(5);
            }

            var result = await new GithubUpdater(HttpClient, JsonSerializer).CheckForUpdateResult("MediaBrowser", "Emby", ApplicationVersion, updateLevel, _releaseAssetFilename,
                "MBServer", "Mbserver.zip", cacheLength, cancellationToken).ConfigureAwait(false);

            HasUpdateAvailable = result.IsUpdateAvailable;

            return result;
        }

        /// <summary>
        /// Updates the application.
        /// </summary>
        /// <param name="package">The package that contains the update</param>
        /// <param name="cancellationToken">The cancellation token.</param>
        /// <param name="progress">The progress.</param>
        public async Task UpdateApplication(PackageVersionInfo package, CancellationToken cancellationToken, IProgress<double> progress)
        {
            await InstallationManager.InstallPackage(package, false, progress, cancellationToken).ConfigureAwait(false);

            HasUpdateAvailable = false;

            OnApplicationUpdated(package);
        }

        /// <summary>
        /// Configures the automatic run at startup.
        /// </summary>
        /// <param name="autorun">if set to <c>true</c> [autorun].</param>
        protected void ConfigureAutoRunAtStartup(bool autorun)
        {
            if (SupportsAutoRunAtStartup)
            {
                ConfigureAutoRunInternal(autorun);
            }
        }

        protected virtual void ConfigureAutoRunInternal(bool autorun)
        {
            throw new NotImplementedException();
        }

        /// <summary>
        /// This returns localhost in the case of no external dns, and the hostname if the 
        /// dns is prefixed with a valid Uri prefix.
        /// </summary>
        /// <param name="externalDns">The external dns prefix to get the hostname of.</param>
        /// <returns>The hostname in <paramref name="externalDns"/></returns>
        private static string GetHostnameFromExternalDns(string externalDns)
        {
            if (string.IsNullOrWhiteSpace(externalDns))
            {
                return "localhost";
            }

            try
            {
                return new Uri(externalDns).Host;
            }
            catch
            {
                return externalDns;
            }
        }

        public void LaunchUrl(string url)
        {
            if (EnvironmentInfo.OperatingSystem != MediaBrowser.Model.System.OperatingSystem.Windows &&
                EnvironmentInfo.OperatingSystem != MediaBrowser.Model.System.OperatingSystem.OSX)
            {
                throw new NotImplementedException();
            }

            var process = ProcessFactory.Create(new ProcessOptions
            {
                FileName = url,
                //EnableRaisingEvents = true,
                UseShellExecute = true,
                ErrorDialog = false
            });

            process.Exited += ProcessExited;

            try
            {
                process.Start();
            }
            catch (Exception ex)
            {
                Console.WriteLine("Error launching url: {0}", url);
                Logger.ErrorException("Error launching url: {0}", ex, url);

                throw;
            }
        }

        private static void ProcessExited(object sender, EventArgs e)
        {
            ((IProcess)sender).Dispose();
        }

        public virtual void EnableLoopback(string appName)
        {
        }

        private void RegisterModules()
        {
            var moduleTypes = GetExportTypes<IDependencyModule>();

            foreach (var type in moduleTypes)
            {
                try
                {
                    var instance = Activator.CreateInstance(type) as IDependencyModule;
                    if (instance != null)
                        instance.BindDependencies(this);
                }
                catch (Exception ex)
                {
                    Logger.ErrorException("Error setting up dependency bindings for " + type.Name, ex);
                }
            }
        }

        /// <summary>
        /// Called when [application updated].
        /// </summary>
        /// <param name="package">The package.</param>
        protected void OnApplicationUpdated(PackageVersionInfo package)
        {
            Logger.Info("Application has been updated to version {0}", package.versionStr);

            EventHelper.FireEventIfNotNull(ApplicationUpdated, this, new GenericEventArgs<PackageVersionInfo>
            {
                Argument = package

            }, Logger);

            NotifyPendingRestart();
        }

        private bool _disposed;
        /// <summary>
        /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
        /// </summary>
        public void Dispose()
        {
            if (!_disposed)
            {
                _disposed = true;

                Dispose(true);
            }
        }

        /// <summary>
        /// Releases unmanaged and - optionally - managed resources.
        /// </summary>
        /// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
        protected virtual void Dispose(bool dispose)
        {
            if (dispose)
            {
                var type = GetType();

                Logger.Info("Disposing " + type.Name);

                var parts = DisposableParts.Distinct().Where(i => i.GetType() != type).ToList();
                DisposableParts.Clear();

                foreach (var part in parts)
                {
                    Logger.Info("Disposing " + part.GetType().Name);

                    try
                    {
                        part.Dispose();
                    }
                    catch (Exception ex)
                    {
                        Logger.ErrorException("Error disposing {0}", ex, part.GetType().Name);
                    }
                }
            }
        }

        void IDependencyContainer.RegisterSingleInstance<T>(T obj, bool manageLifetime)
        {
            RegisterSingleInstance(obj, manageLifetime);
        }

        void IDependencyContainer.RegisterSingleInstance<T>(Func<T> func)
        {
            RegisterSingleInstance(func);
        }

        void IDependencyContainer.Register(Type typeInterface, Type typeImplementation)
        {
            Container.Register(typeInterface, typeImplementation);
        }
    }

    internal class CertificateInfo
    {
        public string Path { get; set; }
        public string Password { get; set; }
    }
}