Merge remote-tracking branch 'upstream/api-migration' into api-image2

18 files changed, 820 insertions, 103 deletions

diff --git a/Jellyfin.Server/CoreAppHost.cs b/Jellyfin.Server/CoreAppHost.cs
index 1d5313c13e..331a32c737 100644
--- a/Jellyfin.Server/CoreAppHost.cs
+++ b/Jellyfin.Server/CoreAppHost.cs
@@ -1,9 +1,18 @@
+using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Reflection;
+using Emby.Drawing;
 using Emby.Server.Implementations;
+using Jellyfin.Drawing.Skia;
+using Jellyfin.Server.Implementations;
+using Jellyfin.Server.Implementations.Activity;
 using MediaBrowser.Common.Net;
 using MediaBrowser.Controller.Drawing;
+using MediaBrowser.Model.Activity;
 using MediaBrowser.Model.IO;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 
 namespace Jellyfin.Server
@@ -20,27 +29,49 @@ namespace Jellyfin.Server
         /// <param name="loggerFactory">The <see cref="ILoggerFactory" /> to be used by the <see cref="CoreAppHost" />.</param>
         /// <param name="options">The <see cref="StartupOptions" /> to be used by the <see cref="CoreAppHost" />.</param>
         /// <param name="fileSystem">The <see cref="IFileSystem" /> to be used by the <see cref="CoreAppHost" />.</param>
-        /// <param name="imageEncoder">The <see cref="IImageEncoder" /> to be used by the <see cref="CoreAppHost" />.</param>
         /// <param name="networkManager">The <see cref="INetworkManager" /> to be used by the <see cref="CoreAppHost" />.</param>
         public CoreAppHost(
             ServerApplicationPaths applicationPaths,
             ILoggerFactory loggerFactory,
             StartupOptions options,
             IFileSystem fileSystem,
-            IImageEncoder imageEncoder,
             INetworkManager networkManager)
             : base(
                 applicationPaths,
                 loggerFactory,
                 options,
                 fileSystem,
-                imageEncoder,
                 networkManager)
         {
         }
 
-        /// <inheritdoc />
-        public override bool CanSelfRestart => StartupOptions.RestartPath != null;
+        /// <inheritdoc/>
+        protected override void RegisterServices(IServiceCollection serviceCollection)
+        {
+            // Register an image encoder
+            bool useSkiaEncoder = SkiaEncoder.IsNativeLibAvailable();
+            Type imageEncoderType = useSkiaEncoder
+                ? typeof(SkiaEncoder)
+                : typeof(NullImageEncoder);
+            serviceCollection.AddSingleton(typeof(IImageEncoder), imageEncoderType);
+
+            // Log a warning if the Skia encoder could not be used
+            if (!useSkiaEncoder)
+            {
+                Logger.LogWarning($"Skia not available. Will fallback to {nameof(NullImageEncoder)}.");
+            }
+
+            // TODO: Set up scoping and use AddDbContextPool
+            serviceCollection.AddDbContext<JellyfinDb>(
+                    options => options.UseSqlite($"Filename={Path.Combine(ApplicationPaths.DataPath, "jellyfin.db")}"),
+                    ServiceLifetime.Transient);
+
+            serviceCollection.AddSingleton<JellyfinDbProvider>();
+
+            serviceCollection.AddSingleton<IActivityManager, ActivityManager>();
+
+            base.RegisterServices(serviceCollection);
+        }
 
         /// <inheritdoc />
         protected override void RestartInternal() => Program.Restart();
diff --git a/Jellyfin.Server/Extensions/ApiApplicationBuilderExtensions.cs b/Jellyfin.Server/Extensions/ApiApplicationBuilderExtensions.cs
index db06eb4552..745567703f 100644
--- a/Jellyfin.Server/Extensions/ApiApplicationBuilderExtensions.cs
+++ b/Jellyfin.Server/Extensions/ApiApplicationBuilderExtensions.cs
@@ -1,3 +1,4 @@
+using MediaBrowser.Controller.Configuration;
 using Microsoft.AspNetCore.Builder;
 
 namespace Jellyfin.Server.Extensions
@@ -11,17 +12,39 @@ namespace Jellyfin.Server.Extensions
         /// Adds swagger and swagger UI to the application pipeline.
         /// </summary>
         /// <param name="applicationBuilder">The application builder.</param>
+        /// <param name="serverConfigurationManager">The server configuration.</param>
         /// <returns>The updated application builder.</returns>
-        public static IApplicationBuilder UseJellyfinApiSwagger(this IApplicationBuilder applicationBuilder)
+        public static IApplicationBuilder UseJellyfinApiSwagger(
+            this IApplicationBuilder applicationBuilder,
+            IServerConfigurationManager serverConfigurationManager)
         {
-            applicationBuilder.UseSwagger();
-
             // Enable middleware to serve swagger-ui (HTML, JS, CSS, etc.),
             // specifying the Swagger JSON endpoint.
-            return applicationBuilder.UseSwaggerUI(c =>
+
+            var baseUrl = serverConfigurationManager.Configuration.BaseUrl.Trim('/');
+            if (!string.IsNullOrEmpty(baseUrl))
             {
-                c.SwaggerEndpoint("/swagger/v1/swagger.json", "Jellyfin API V1");
-            });
+                baseUrl += '/';
+            }
+
+            return applicationBuilder
+                .UseSwagger(c =>
+                {
+                    // Custom path requires {documentName}, SwaggerDoc documentName is 'api-docs'
+                    c.RouteTemplate = $"/{baseUrl}{{documentName}}/openapi.json";
+                })
+                .UseSwaggerUI(c =>
+                {
+                    c.DocumentTitle = "Jellyfin API";
+                    c.SwaggerEndpoint($"/{baseUrl}api-docs/openapi.json", "Jellyfin API");
+                    c.RoutePrefix = $"{baseUrl}api-docs/swagger";
+                })
+                .UseReDoc(c =>
+                {
+                    c.DocumentTitle = "Jellyfin API";
+                    c.SpecUrl($"/{baseUrl}api-docs/openapi.json");
+                    c.RoutePrefix = $"{baseUrl}api-docs/redoc";
+                });
         }
     }
 }
diff --git a/Jellyfin.Server/Extensions/ApiServiceCollectionExtensions.cs b/Jellyfin.Server/Extensions/ApiServiceCollectionExtensions.cs
index 71ef9a69a2..9cdaa0eb16 100644
--- a/Jellyfin.Server/Extensions/ApiServiceCollectionExtensions.cs
+++ b/Jellyfin.Server/Extensions/ApiServiceCollectionExtensions.cs
@@ -1,13 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
 using Jellyfin.Api;
 using Jellyfin.Api.Auth;
 using Jellyfin.Api.Auth.FirstTimeSetupOrElevatedPolicy;
 using Jellyfin.Api.Auth.RequiresElevationPolicy;
 using Jellyfin.Api.Constants;
 using Jellyfin.Api.Controllers;
+using Jellyfin.Server.Formatters;
+using Jellyfin.Server.Models;
+using MediaBrowser.Common.Json;
+using MediaBrowser.Model.Entities;
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.OpenApi.Models;
+using Swashbuckle.AspNetCore.SwaggerGen;
 
 namespace Jellyfin.Server.Extensions
 {
@@ -63,9 +73,18 @@ namespace Jellyfin.Server.Extensions
         /// <returns>The MVC builder.</returns>
         public static IMvcBuilder AddJellyfinApi(this IServiceCollection serviceCollection, string baseUrl)
         {
-            return serviceCollection.AddMvc(opts =>
+            return serviceCollection
+                .AddCors(options =>
+                {
+                    options.AddPolicy(ServerCorsPolicy.DefaultPolicyName, ServerCorsPolicy.DefaultPolicy);
+                })
+                .AddMvc(opts =>
                 {
                     opts.UseGeneralRoutePrefix(baseUrl);
+                    opts.OutputFormatters.Insert(0, new CamelCaseJsonProfileFormatter());
+                    opts.OutputFormatters.Insert(0, new PascalCaseJsonProfileFormatter());
+
+                    opts.OutputFormatters.Add(new CssOutputFormatter());
                 })
 
                 // Clear app parts to avoid other assemblies being picked up
@@ -73,8 +92,20 @@ namespace Jellyfin.Server.Extensions
                 .AddApplicationPart(typeof(StartupController).Assembly)
                 .AddJsonOptions(options =>
                 {
-                    // Setting the naming policy to null leaves the property names as-is when serializing objects to JSON.
-                    options.JsonSerializerOptions.PropertyNamingPolicy = null;
+                    // Update all properties that are set in JsonDefaults
+                    var jsonOptions = JsonDefaults.GetPascalCaseOptions();
+
+                    // From JsonDefaults
+                    options.JsonSerializerOptions.ReadCommentHandling = jsonOptions.ReadCommentHandling;
+                    options.JsonSerializerOptions.WriteIndented = jsonOptions.WriteIndented;
+                    options.JsonSerializerOptions.Converters.Clear();
+                    foreach (var converter in jsonOptions.Converters)
+                    {
+                        options.JsonSerializerOptions.Converters.Add(converter);
+                    }
+
+                    // From JsonDefaults.PascalCase
+                    options.JsonSerializerOptions.PropertyNamingPolicy = jsonOptions.PropertyNamingPolicy;
                 })
                 .AddControllersAsServices();
         }
@@ -88,8 +119,69 @@ namespace Jellyfin.Server.Extensions
         {
             return serviceCollection.AddSwaggerGen(c =>
             {
-                c.SwaggerDoc("v1", new OpenApiInfo { Title = "Jellyfin API", Version = "v1" });
+                c.SwaggerDoc("api-docs", new OpenApiInfo { Title = "Jellyfin API", Version = "v1" });
+                c.AddSecurityDefinition(AuthenticationSchemes.CustomAuthentication, new OpenApiSecurityScheme
+                {
+                    Type = SecuritySchemeType.ApiKey,
+                    In = ParameterLocation.Header,
+                    Name = "X-Emby-Token",
+                    Description = "API key header parameter"
+                });
+
+                var securitySchemeRef = new OpenApiSecurityScheme
+                {
+                    Reference = new OpenApiReference { Type = ReferenceType.SecurityScheme, Id = AuthenticationSchemes.CustomAuthentication },
+                };
+
+                // TODO: Apply this with an operation filter instead of globally
+                // https://github.com/domaindrivendev/Swashbuckle.AspNetCore#add-security-definitions-and-requirements
+                c.AddSecurityRequirement(new OpenApiSecurityRequirement
+                {
+                    { securitySchemeRef, Array.Empty<string>() }
+                });
+
+                // Add all xml doc files to swagger generator.
+                var xmlFiles = Directory.GetFiles(
+                    AppContext.BaseDirectory,
+                    "*.xml",
+                    SearchOption.TopDirectoryOnly);
+
+                foreach (var xmlFile in xmlFiles)
+                {
+                    c.IncludeXmlComments(xmlFile);
+                }
+
+                // Order actions by route path, then by http method.
+                c.OrderActionsBy(description =>
+                    $"{description.ActionDescriptor.RouteValues["controller"]}_{description.HttpMethod}");
+
+                // Use method name as operationId
+                c.CustomOperationIds(description =>
+                    description.TryGetMethodInfo(out MethodInfo methodInfo) ? methodInfo.Name : null);
+
+                // TODO - remove when all types are supported in System.Text.Json
+                c.AddSwaggerTypeMappings();
             });
         }
+
+        private static void AddSwaggerTypeMappings(this SwaggerGenOptions options)
+        {
+            /*
+             * TODO remove when System.Text.Json supports non-string keys.
+             * Used in Jellyfin.Api.Controller.GetChannels.
+             */
+            options.MapType<Dictionary<ImageType, string>>(() =>
+                new OpenApiSchema
+                {
+                    Type = "object",
+                    Properties = typeof(ImageType).GetEnumNames().ToDictionary(
+                        name => name,
+                        name => new OpenApiSchema
+                        {
+                            Type = "string",
+                            Format = "string"
+                        })
+                });
+        }
     }
 }
diff --git a/Jellyfin.Server/Formatters/CamelCaseJsonProfileFormatter.cs b/Jellyfin.Server/Formatters/CamelCaseJsonProfileFormatter.cs
new file mode 100644
index 0000000000..9b347ae2c2
--- /dev/null
+++ b/Jellyfin.Server/Formatters/CamelCaseJsonProfileFormatter.cs
@@ -0,0 +1,21 @@
+using MediaBrowser.Common.Json;
+using Microsoft.AspNetCore.Mvc.Formatters;
+using Microsoft.Net.Http.Headers;
+
+namespace Jellyfin.Server.Formatters
+{
+    /// <summary>
+    /// Camel Case Json Profile Formatter.
+    /// </summary>
+    public class CamelCaseJsonProfileFormatter : SystemTextJsonOutputFormatter
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="CamelCaseJsonProfileFormatter"/> class.
+        /// </summary>
+        public CamelCaseJsonProfileFormatter() : base(JsonDefaults.GetCamelCaseOptions())
+        {
+            SupportedMediaTypes.Clear();
+            SupportedMediaTypes.Add(MediaTypeHeaderValue.Parse("application/json;profile=\"CamelCase\""));
+        }
+    }
+}
diff --git a/Jellyfin.Server/Formatters/CssOutputFormatter.cs b/Jellyfin.Server/Formatters/CssOutputFormatter.cs
new file mode 100644
index 0000000000..b3771b7fe6
--- /dev/null
+++ b/Jellyfin.Server/Formatters/CssOutputFormatter.cs
@@ -0,0 +1,36 @@
+using System;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc.Formatters;
+
+namespace Jellyfin.Server.Formatters
+{
+    /// <summary>
+    /// Css output formatter.
+    /// </summary>
+    public class CssOutputFormatter : TextOutputFormatter
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="CssOutputFormatter"/> class.
+        /// </summary>
+        public CssOutputFormatter()
+        {
+            SupportedMediaTypes.Add("text/css");
+
+            SupportedEncodings.Add(Encoding.UTF8);
+            SupportedEncodings.Add(Encoding.Unicode);
+        }
+
+        /// <summary>
+        /// Write context object to stream.
+        /// </summary>
+        /// <param name="context">Writer context.</param>
+        /// <param name="selectedEncoding">Unused. Writer encoding.</param>
+        /// <returns>Write stream task.</returns>
+        public override Task WriteResponseBodyAsync(OutputFormatterWriteContext context, Encoding selectedEncoding)
+        {
+            return context.HttpContext.Response.WriteAsync(context.Object?.ToString());
+        }
+    }
+}
diff --git a/Jellyfin.Server/Formatters/PascalCaseJsonProfileFormatter.cs b/Jellyfin.Server/Formatters/PascalCaseJsonProfileFormatter.cs
new file mode 100644
index 0000000000..0024708bad
--- /dev/null
+++ b/Jellyfin.Server/Formatters/PascalCaseJsonProfileFormatter.cs
@@ -0,0 +1,23 @@
+using MediaBrowser.Common.Json;
+using Microsoft.AspNetCore.Mvc.Formatters;
+using Microsoft.Net.Http.Headers;
+
+namespace Jellyfin.Server.Formatters
+{
+    /// <summary>
+    /// Pascal Case Json Profile Formatter.
+    /// </summary>
+    public class PascalCaseJsonProfileFormatter : SystemTextJsonOutputFormatter
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PascalCaseJsonProfileFormatter"/> class.
+        /// </summary>
+        public PascalCaseJsonProfileFormatter() : base(JsonDefaults.GetPascalCaseOptions())
+        {
+            SupportedMediaTypes.Clear();
+            // Add application/json for default formatter
+            SupportedMediaTypes.Add(MediaTypeHeaderValue.Parse("application/json"));
+            SupportedMediaTypes.Add(MediaTypeHeaderValue.Parse("application/json;profile=\"PascalCase\""));
+        }
+    }
+}
diff --git a/Jellyfin.Server/Jellyfin.Server.csproj b/Jellyfin.Server/Jellyfin.Server.csproj
index 02ae202b47..7457830fa4 100644
--- a/Jellyfin.Server/Jellyfin.Server.csproj
+++ b/Jellyfin.Server/Jellyfin.Server.csproj
@@ -1,5 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
+  <!-- ProjectGuid is only included as a requirement for SonarQube analysis -->
+  <PropertyGroup>
+    <ProjectGuid>{07E39F42-A2C6-4B32-AF8C-725F957A73FF}</ProjectGuid>
+  </PropertyGroup>
+
   <PropertyGroup>
     <AssemblyName>jellyfin</AssemblyName>
     <OutputType>Exe</OutputType>
@@ -36,8 +41,10 @@
 
   <ItemGroup>
     <PackageReference Include="CommandLineParser" Version="2.7.82" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="3.1.3" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.1.3" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="3.1.5" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.1.5" />
+    <PackageReference Include="prometheus-net" Version="3.5.0" />
+    <PackageReference Include="prometheus-net.AspNetCore" Version="3.5.0" />
     <PackageReference Include="Serilog.AspNetCore" Version="3.2.0" />
     <PackageReference Include="Serilog.Enrichers.Thread" Version="3.1.0" />
     <PackageReference Include="Serilog.Settings.Configuration" Version="3.1.0" />
@@ -45,7 +52,7 @@
     <PackageReference Include="Serilog.Sinks.Console" Version="3.1.1" />
     <PackageReference Include="Serilog.Sinks.File" Version="4.1.0" />
     <PackageReference Include="Serilog.Sinks.Graylog" Version="2.1.2" />
-    <PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Version="2.0.2" />
+    <PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Version="2.0.3" />
     <PackageReference Include="SQLitePCLRaw.provider.sqlite3.netstandard11" Version="1.1.14" />
   </ItemGroup>
 
@@ -53,6 +60,7 @@
     <ProjectReference Include="..\Emby.Drawing\Emby.Drawing.csproj" />
     <ProjectReference Include="..\Emby.Server.Implementations\Emby.Server.Implementations.csproj" />
     <ProjectReference Include="..\Jellyfin.Drawing.Skia\Jellyfin.Drawing.Skia.csproj" />
+    <ProjectReference Include="..\Jellyfin.Server.Implementations\Jellyfin.Server.Implementations.csproj" />
   </ItemGroup>
 
 </Project>
diff --git a/Jellyfin.Server/Middleware/ExceptionMiddleware.cs b/Jellyfin.Server/Middleware/ExceptionMiddleware.cs
new file mode 100644
index 0000000000..63effafc19
--- /dev/null
+++ b/Jellyfin.Server/Middleware/ExceptionMiddleware.cs
@@ -0,0 +1,155 @@
+using System;
+using System.IO;
+using System.Net.Mime;
+using System.Net.Sockets;
+using System.Threading.Tasks;
+using MediaBrowser.Common.Extensions;
+using MediaBrowser.Controller.Authentication;
+using MediaBrowser.Controller.Configuration;
+using MediaBrowser.Controller.Net;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace Jellyfin.Server.Middleware
+{
+    /// <summary>
+    /// Exception Middleware.
+    /// </summary>
+    public class ExceptionMiddleware
+    {
+        private readonly RequestDelegate _next;
+        private readonly ILogger<ExceptionMiddleware> _logger;
+        private readonly IServerConfigurationManager _configuration;
+        private readonly IWebHostEnvironment _hostEnvironment;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ExceptionMiddleware"/> class.
+        /// </summary>
+        /// <param name="next">Next request delegate.</param>
+        /// <param name="logger">Instance of the <see cref="ILogger{ExceptionMiddleware}"/> interface.</param>
+        /// <param name="serverConfigurationManager">Instance of the <see cref="IServerConfigurationManager"/> interface.</param>
+        /// <param name="hostEnvironment">Instance of the <see cref="IWebHostEnvironment"/> interface.</param>
+        public ExceptionMiddleware(
+            RequestDelegate next,
+            ILogger<ExceptionMiddleware> logger,
+            IServerConfigurationManager serverConfigurationManager,
+            IWebHostEnvironment hostEnvironment)
+        {
+            _next = next;
+            _logger = logger;
+            _configuration = serverConfigurationManager;
+            _hostEnvironment = hostEnvironment;
+        }
+
+        /// <summary>
+        /// Invoke request.
+        /// </summary>
+        /// <param name="context">Request context.</param>
+        /// <returns>Task.</returns>
+        public async Task Invoke(HttpContext context)
+        {
+            try
+            {
+                await _next(context).ConfigureAwait(false);
+            }
+            catch (Exception ex)
+            {
+                if (context.Response.HasStarted)
+                {
+                    _logger.LogWarning("The response has already started, the exception middleware will not be executed.");
+                    throw;
+                }
+
+                ex = GetActualException(ex);
+
+                bool ignoreStackTrace =
+                    ex is SocketException
+                    || ex is IOException
+                    || ex is OperationCanceledException
+                    || ex is SecurityException
+                    || ex is AuthenticationException
+                    || ex is FileNotFoundException;
+
+                if (ignoreStackTrace)
+                {
+                    _logger.LogError(
+                        "Error processing request: {ExceptionMessage}. URL {Method} {Url}.",
+                        ex.Message.TrimEnd('.'),
+                        context.Request.Method,
+                        context.Request.Path);
+                }
+                else
+                {
+                    _logger.LogError(
+                        ex,
+                        "Error processing request. URL {Method} {Url}.",
+                        context.Request.Method,
+                        context.Request.Path);
+                }
+
+                context.Response.StatusCode = GetStatusCode(ex);
+                context.Response.ContentType = MediaTypeNames.Text.Plain;
+
+                // Don't send exception unless the server is in a Development environment
+                var errorContent = _hostEnvironment.IsDevelopment()
+                        ? NormalizeExceptionMessage(ex.Message)
+                        : "Error processing request.";
+                await context.Response.WriteAsync(errorContent).ConfigureAwait(false);
+            }
+        }
+
+        private static Exception GetActualException(Exception ex)
+        {
+            if (ex is AggregateException agg)
+            {
+                var inner = agg.InnerException;
+                if (inner != null)
+                {
+                    return GetActualException(inner);
+                }
+
+                var inners = agg.InnerExceptions;
+                if (inners.Count > 0)
+                {
+                    return GetActualException(inners[0]);
+                }
+            }
+
+            return ex;
+        }
+
+        private static int GetStatusCode(Exception ex)
+        {
+            switch (ex)
+            {
+                case ArgumentException _: return StatusCodes.Status400BadRequest;
+                case SecurityException _: return StatusCodes.Status401Unauthorized;
+                case DirectoryNotFoundException _:
+                case FileNotFoundException _:
+                case ResourceNotFoundException _: return StatusCodes.Status404NotFound;
+                case MethodNotAllowedException _: return StatusCodes.Status405MethodNotAllowed;
+                default: return StatusCodes.Status500InternalServerError;
+            }
+        }
+
+        private string NormalizeExceptionMessage(string msg)
+        {
+            if (msg == null)
+            {
+                return string.Empty;
+            }
+
+            // Strip any information we don't want to reveal
+            return msg.Replace(
+                    _configuration.ApplicationPaths.ProgramSystemPath,
+                    string.Empty,
+                    StringComparison.OrdinalIgnoreCase)
+                .Replace(
+                    _configuration.ApplicationPaths.ProgramDataPath,
+                    string.Empty,
+                    StringComparison.OrdinalIgnoreCase);
+        }
+    }
+}
diff --git a/Jellyfin.Server/Migrations/IMigrationRoutine.cs b/Jellyfin.Server/Migrations/IMigrationRoutine.cs
index eab995d67e..6b5780a262 100644
--- a/Jellyfin.Server/Migrations/IMigrationRoutine.cs
+++ b/Jellyfin.Server/Migrations/IMigrationRoutine.cs
@@ -1,5 +1,4 @@
 using System;
-using Microsoft.Extensions.Logging;
 
 namespace Jellyfin.Server.Migrations
 {
@@ -21,8 +20,6 @@ namespace Jellyfin.Server.Migrations
         /// <summary>
         /// Execute the migration routine.
         /// </summary>
-        /// <param name="host">Host that hosts current version.</param>
-        /// <param name="logger">Host logger.</param>
-        public void Perform(CoreAppHost host, ILogger logger);
+        public void Perform();
     }
 }
diff --git a/Jellyfin.Server/Migrations/MigrationRunner.cs b/Jellyfin.Server/Migrations/MigrationRunner.cs
index b5ea04dcac..473f62737e 100644
--- a/Jellyfin.Server/Migrations/MigrationRunner.cs
+++ b/Jellyfin.Server/Migrations/MigrationRunner.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Linq;
 using MediaBrowser.Common.Configuration;
+using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 
 namespace Jellyfin.Server.Migrations
@@ -13,10 +14,12 @@ namespace Jellyfin.Server.Migrations
         /// <summary>
         /// The list of known migrations, in order of applicability.
         /// </summary>
-        internal static readonly IMigrationRoutine[] Migrations =
+        private static readonly Type[] _migrationTypes =
         {
-            new Routines.DisableTranscodingThrottling(),
-            new Routines.CreateUserLoggingConfigFile()
+            typeof(Routines.DisableTranscodingThrottling),
+            typeof(Routines.CreateUserLoggingConfigFile),
+            typeof(Routines.MigrateActivityLogDb),
+            typeof(Routines.RemoveDuplicateExtras)
         };
 
         /// <summary>
@@ -27,6 +30,10 @@ namespace Jellyfin.Server.Migrations
         public static void Run(CoreAppHost host, ILoggerFactory loggerFactory)
         {
             var logger = loggerFactory.CreateLogger<MigrationRunner>();
+            var migrations = _migrationTypes
+                .Select(m => ActivatorUtilities.CreateInstance(host.ServiceProvider, m))
+                .OfType<IMigrationRoutine>()
+                .ToArray();
             var migrationOptions = ((IConfigurationManager)host.ServerConfigurationManager).GetConfiguration<MigrationOptions>(MigrationsListStore.StoreKey);
 
             if (!host.ServerConfigurationManager.Configuration.IsStartupWizardCompleted && migrationOptions.Applied.Count == 0)
@@ -34,16 +41,16 @@ namespace Jellyfin.Server.Migrations
                 // If startup wizard is not finished, this is a fresh install.
                 // Don't run any migrations, just mark all of them as applied.
                 logger.LogInformation("Marking all known migrations as applied because this is a fresh install");
-                migrationOptions.Applied.AddRange(Migrations.Select(m => (m.Id, m.Name)));
+                migrationOptions.Applied.AddRange(migrations.Select(m => (m.Id, m.Name)));
                 host.ServerConfigurationManager.SaveConfiguration(MigrationsListStore.StoreKey, migrationOptions);
                 return;
             }
 
             var appliedMigrationIds = migrationOptions.Applied.Select(m => m.Id).ToHashSet();
 
-            for (var i = 0; i < Migrations.Length; i++)
+            for (var i = 0; i < migrations.Length; i++)
             {
-                var migrationRoutine = Migrations[i];
+                var migrationRoutine = migrations[i];
                 if (appliedMigrationIds.Contains(migrationRoutine.Id))
                 {
                     logger.LogDebug("Skipping migration '{Name}' since it is already applied", migrationRoutine.Name);
@@ -54,7 +61,7 @@ namespace Jellyfin.Server.Migrations
 
                 try
                 {
-                    migrationRoutine.Perform(host, logger);
+                    migrationRoutine.Perform();
                 }
                 catch (Exception ex)
                 {
diff --git a/Jellyfin.Server/Migrations/Routines/CreateUserLoggingConfigFile.cs b/Jellyfin.Server/Migrations/Routines/CreateUserLoggingConfigFile.cs
index 3bc32c0478..b15e092906 100644
--- a/Jellyfin.Server/Migrations/Routines/CreateUserLoggingConfigFile.cs
+++ b/Jellyfin.Server/Migrations/Routines/CreateUserLoggingConfigFile.cs
@@ -3,7 +3,6 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using MediaBrowser.Common.Configuration;
-using Microsoft.Extensions.Logging;
 using Newtonsoft.Json.Linq;
 
 namespace Jellyfin.Server.Migrations.Routines
@@ -36,6 +35,13 @@ namespace Jellyfin.Server.Migrations.Routines
             @"{""Serilog"":{""MinimumLevel"":""Information"",""WriteTo"":[{""Name"":""Console"",""Args"":{""outputTemplate"":""[{Timestamp:HH:mm:ss}] [{Level:u3}] [{ThreadId}] {SourceContext}: {Message:lj}{NewLine}{Exception}""}},{""Name"":""Async"",""Args"":{""configure"":[{""Name"":""File"",""Args"":{""path"":""%JELLYFIN_LOG_DIR%//log_.log"",""rollingInterval"":""Day"",""retainedFileCountLimit"":3,""rollOnFileSizeLimit"":true,""fileSizeLimitBytes"":100000000,""outputTemplate"":""[{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz}] [{Level:u3}] [{ThreadId}] {SourceContext}:{Message}{NewLine}{Exception}""}}]}}],""Enrich"":[""FromLogContext"",""WithThreadId""]}}",
         };
 
+        private readonly IApplicationPaths _appPaths;
+
+        public CreateUserLoggingConfigFile(IApplicationPaths appPaths)
+        {
+            _appPaths = appPaths;
+        }
+
         /// <inheritdoc/>
         public Guid Id => Guid.Parse("{EF103419-8451-40D8-9F34-D1A8E93A1679}");
 
@@ -43,9 +49,9 @@ namespace Jellyfin.Server.Migrations.Routines
         public string Name => "CreateLoggingConfigHeirarchy";
 
         /// <inheritdoc/>
-        public void Perform(CoreAppHost host, ILogger logger)
+        public void Perform()
         {
-            var logDirectory = host.Resolve<IApplicationPaths>().ConfigurationDirectoryPath;
+            var logDirectory = _appPaths.ConfigurationDirectoryPath;
             var existingConfigPath = Path.Combine(logDirectory, "logging.json");
 
             // If the existing logging.json config file is unmodified, then 'reset' it by moving it to 'logging.old.json'
diff --git a/Jellyfin.Server/Migrations/Routines/DisableTranscodingThrottling.cs b/Jellyfin.Server/Migrations/Routines/DisableTranscodingThrottling.cs
index 6f8e4a8ffb..c18aa16293 100644
--- a/Jellyfin.Server/Migrations/Routines/DisableTranscodingThrottling.cs
+++ b/Jellyfin.Server/Migrations/Routines/DisableTranscodingThrottling.cs
@@ -10,6 +10,15 @@ namespace Jellyfin.Server.Migrations.Routines
     /// </summary>
     internal class DisableTranscodingThrottling : IMigrationRoutine
     {
+        private readonly ILogger<DisableTranscodingThrottling> _logger;
+        private readonly IConfigurationManager _configManager;
+
+        public DisableTranscodingThrottling(ILogger<DisableTranscodingThrottling> logger, IConfigurationManager configManager)
+        {
+            _logger = logger;
+            _configManager = configManager;
+        }
+
         /// <inheritdoc/>
         public Guid Id => Guid.Parse("{4124C2CD-E939-4FFB-9BE9-9B311C413638}");
 
@@ -17,16 +26,16 @@ namespace Jellyfin.Server.Migrations.Routines
         public string Name => "DisableTranscodingThrottling";
 
         /// <inheritdoc/>
-        public void Perform(CoreAppHost host, ILogger logger)
+        public void Perform()
         {
             // Set EnableThrottling to false since it wasn't used before and may introduce issues
-            var encoding = ((IConfigurationManager)host.ServerConfigurationManager).GetConfiguration<EncodingOptions>("encoding");
+            var encoding = _configManager.GetConfiguration<EncodingOptions>("encoding");
             if (encoding.EnableThrottling)
             {
-                logger.LogInformation("Disabling transcoding throttling during migration");
+                _logger.LogInformation("Disabling transcoding throttling during migration");
                 encoding.EnableThrottling = false;
 
-                host.ServerConfigurationManager.SaveConfiguration("encoding", encoding);
+                _configManager.SaveConfiguration("encoding", encoding);
             }
         }
     }
diff --git a/Jellyfin.Server/Migrations/Routines/MigrateActivityLogDb.cs b/Jellyfin.Server/Migrations/Routines/MigrateActivityLogDb.cs
new file mode 100644
index 0000000000..fb3466e13e
--- /dev/null
+++ b/Jellyfin.Server/Migrations/Routines/MigrateActivityLogDb.cs
@@ -0,0 +1,151 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using Emby.Server.Implementations.Data;
+using Jellyfin.Data.Entities;
+using Jellyfin.Server.Implementations;
+using MediaBrowser.Controller;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using SQLitePCL.pretty;
+
+namespace Jellyfin.Server.Migrations.Routines
+{
+    /// <summary>
+    /// The migration routine for migrating the activity log database to EF Core.
+    /// </summary>
+    public class MigrateActivityLogDb : IMigrationRoutine
+    {
+        private const string DbFilename = "activitylog.db";
+
+        private readonly ILogger<MigrateActivityLogDb> _logger;
+        private readonly JellyfinDbProvider _provider;
+        private readonly IServerApplicationPaths _paths;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MigrateActivityLogDb"/> class.
+        /// </summary>
+        /// <param name="logger">The logger.</param>
+        /// <param name="paths">The server application paths.</param>
+        /// <param name="provider">The database provider.</param>
+        public MigrateActivityLogDb(ILogger<MigrateActivityLogDb> logger, IServerApplicationPaths paths, JellyfinDbProvider provider)
+        {
+            _logger = logger;
+            _provider = provider;
+            _paths = paths;
+        }
+
+        /// <inheritdoc/>
+        public Guid Id => Guid.Parse("3793eb59-bc8c-456c-8b9f-bd5a62a42978");
+
+        /// <inheritdoc/>
+        public string Name => "MigrateActivityLogDatabase";
+
+        /// <inheritdoc/>
+        public void Perform()
+        {
+            var logLevelDictionary = new Dictionary<string, LogLevel>(StringComparer.OrdinalIgnoreCase)
+            {
+                { "None", LogLevel.None },
+                { "Trace", LogLevel.Trace },
+                { "Debug", LogLevel.Debug },
+                { "Information", LogLevel.Information },
+                { "Info", LogLevel.Information },
+                { "Warn", LogLevel.Warning },
+                { "Warning", LogLevel.Warning },
+                { "Error", LogLevel.Error },
+                { "Critical", LogLevel.Critical }
+            };
+
+            var dataPath = _paths.DataPath;
+            using (var connection = SQLite3.Open(
+                Path.Combine(dataPath, DbFilename),
+                ConnectionFlags.ReadOnly,
+                null))
+            {
+                using var userDbConnection = SQLite3.Open(Path.Combine(dataPath, "users.db"), ConnectionFlags.ReadOnly, null);
+                _logger.LogWarning("Migrating the activity database may take a while, do not stop Jellyfin.");
+                using var dbContext = _provider.CreateContext();
+
+                var queryResult = connection.Query("SELECT * FROM ActivityLog ORDER BY Id");
+
+                // Make sure that the database is empty in case of failed migration due to power outages, etc.
+                dbContext.ActivityLogs.RemoveRange(dbContext.ActivityLogs);
+                dbContext.SaveChanges();
+                // Reset the autoincrement counter
+                dbContext.Database.ExecuteSqlRaw("UPDATE sqlite_sequence SET seq = 0 WHERE name = 'ActivityLog';");
+                dbContext.SaveChanges();
+
+                var newEntries = new List<ActivityLog>();
+
+                foreach (var entry in queryResult)
+                {
+                    if (!logLevelDictionary.TryGetValue(entry[8].ToString(), out var severity))
+                    {
+                        severity = LogLevel.Trace;
+                    }
+
+                    var guid = Guid.Empty;
+                    if (entry[6].SQLiteType != SQLiteType.Null && !Guid.TryParse(entry[6].ToString(), out guid))
+                    {
+                        // This is not a valid Guid, see if it is an internal ID from an old Emby schema
+                        _logger.LogWarning("Invalid Guid in UserId column: ", entry[6].ToString());
+
+                        using var statement = userDbConnection.PrepareStatement("SELECT guid FROM LocalUsersv2 WHERE Id=@Id");
+                        statement.TryBind("@Id", entry[6].ToString());
+
+                        foreach (var row in statement.Query())
+                        {
+                            if (row.Count > 0 && Guid.TryParse(row[0].ToString(), out guid))
+                            {
+                                // Successfully parsed a Guid from the user table.
+                                break;
+                            }
+                        }
+                    }
+
+                    var newEntry = new ActivityLog(entry[1].ToString(), entry[4].ToString(), guid)
+                    {
+                        DateCreated = entry[7].ReadDateTime(),
+                        LogSeverity = severity
+                    };
+
+                    if (entry[2].SQLiteType != SQLiteType.Null)
+                    {
+                        newEntry.Overview = entry[2].ToString();
+                    }
+
+                    if (entry[3].SQLiteType != SQLiteType.Null)
+                    {
+                        newEntry.ShortOverview = entry[3].ToString();
+                    }
+
+                    if (entry[5].SQLiteType != SQLiteType.Null)
+                    {
+                        newEntry.ItemId = entry[5].ToString();
+                    }
+
+                    newEntries.Add(newEntry);
+                }
+
+                dbContext.ActivityLogs.AddRange(newEntries);
+                dbContext.SaveChanges();
+            }
+
+            try
+            {
+                File.Move(Path.Combine(dataPath, DbFilename), Path.Combine(dataPath, DbFilename + ".old"));
+
+                var journalPath = Path.Combine(dataPath, DbFilename + "-journal");
+                if (File.Exists(journalPath))
+                {
+                    File.Move(journalPath, Path.Combine(dataPath, DbFilename + ".old-journal"));
+                }
+            }
+            catch (IOException e)
+            {
+                _logger.LogError(e, "Error renaming legacy activity log database to 'activitylog.db.old'");
+            }
+        }
+    }
+}
diff --git a/Jellyfin.Server/Migrations/Routines/RemoveDuplicateExtras.cs b/Jellyfin.Server/Migrations/Routines/RemoveDuplicateExtras.cs
new file mode 100644
index 0000000000..2ebef02414
--- /dev/null
+++ b/Jellyfin.Server/Migrations/Routines/RemoveDuplicateExtras.cs
@@ -0,0 +1,79 @@
+using System;
+using System.Globalization;
+using System.IO;
+
+using MediaBrowser.Controller;
+using Microsoft.Extensions.Logging;
+using SQLitePCL.pretty;
+
+namespace Jellyfin.Server.Migrations.Routines
+{
+    /// <summary>
+    /// Remove duplicate entries which were caused by a bug where a file was considered to be an "Extra" to itself.
+    /// </summary>
+    internal class RemoveDuplicateExtras : IMigrationRoutine
+    {
+        private const string DbFilename = "library.db";
+        private readonly ILogger<RemoveDuplicateExtras> _logger;
+        private readonly IServerApplicationPaths _paths;
+
+        public RemoveDuplicateExtras(ILogger<RemoveDuplicateExtras> logger, IServerApplicationPaths paths)
+        {
+            _logger = logger;
+            _paths = paths;
+        }
+
+        /// <inheritdoc/>
+        public Guid Id => Guid.Parse("{ACBE17B7-8435-4A83-8B64-6FCF162CB9BD}");
+
+        /// <inheritdoc/>
+        public string Name => "RemoveDuplicateExtras";
+
+        /// <inheritdoc/>
+        public void Perform()
+        {
+            var dataPath = _paths.DataPath;
+            var dbPath = Path.Combine(dataPath, DbFilename);
+            using (var connection = SQLite3.Open(
+                dbPath,
+                ConnectionFlags.ReadWrite,
+                null))
+            {
+                // Query the database for the ids of duplicate extras
+                var queryResult = connection.Query("SELECT t1.Path FROM TypedBaseItems AS t1, TypedBaseItems AS t2 WHERE t1.Path=t2.Path AND t1.Type!=t2.Type AND t1.Type='MediaBrowser.Controller.Entities.Video'");
+                var bads = string.Join(", ", queryResult.SelectScalarString());
+
+                // Do nothing if no duplicate extras were detected
+                if (bads.Length == 0)
+                {
+                    _logger.LogInformation("No duplicate extras detected, skipping migration.");
+                    return;
+                }
+
+                // Back up the database before deleting any entries
+                for (int i = 1; ; i++)
+                {
+                    var bakPath = string.Format(CultureInfo.InvariantCulture, "{0}.bak{1}", dbPath, i);
+                    if (!File.Exists(bakPath))
+                    {
+                        try
+                        {
+                            File.Copy(dbPath, bakPath);
+                            _logger.LogInformation("Library database backed up to {BackupPath}", bakPath);
+                            break;
+                        }
+                        catch (Exception ex)
+                        {
+                            _logger.LogError(ex, "Cannot make a backup of {Library} at path {BackupPath}", DbFilename, bakPath);
+                            throw;
+                        }
+                    }
+                }
+
+                // Delete all duplicate extras
+                _logger.LogInformation("Removing found duplicated extras for the following items: {DuplicateExtras}", bads);
+                connection.Execute("DELETE FROM TypedBaseItems WHERE rowid IN (SELECT t1.rowid FROM TypedBaseItems AS t1, TypedBaseItems AS t2 WHERE t1.Path=t2.Path AND t1.Type!=t2.Type AND t1.Type='MediaBrowser.Controller.Entities.Video')");
+            }
+        }
+    }
+}
diff --git a/Jellyfin.Server/Models/ServerCorsPolicy.cs b/Jellyfin.Server/Models/ServerCorsPolicy.cs
new file mode 100644
index 0000000000..ae010c042e
--- /dev/null
+++ b/Jellyfin.Server/Models/ServerCorsPolicy.cs
@@ -0,0 +1,30 @@
+using Microsoft.AspNetCore.Cors.Infrastructure;
+
+namespace Jellyfin.Server.Models
+{
+    /// <summary>
+    /// Server Cors Policy.
+    /// </summary>
+    public static class ServerCorsPolicy
+    {
+        /// <summary>
+        /// Default policy name.
+        /// </summary>
+        public const string DefaultPolicyName = "DefaultCorsPolicy";
+
+        /// <summary>
+        /// Default Policy. Allow Everything.
+        /// </summary>
+        public static readonly CorsPolicy DefaultPolicy = new CorsPolicy
+        {
+            // Allow any origin
+            Origins = { "*" },
+
+            // Allow any method
+            Methods = { "*" },
+
+            // Allow any header
+            Headers = { "*" }
+        };
+    }
+}
\ No newline at end of file
diff --git a/Jellyfin.Server/Program.cs b/Jellyfin.Server/Program.cs
index e55b0d4ed9..3971a08e91 100644
--- a/Jellyfin.Server/Program.cs
+++ b/Jellyfin.Server/Program.cs
@@ -10,14 +10,11 @@ using System.Text.RegularExpressions;
 using System.Threading;
 using System.Threading.Tasks;
 using CommandLine;
-using Emby.Drawing;
 using Emby.Server.Implementations;
 using Emby.Server.Implementations.HttpServer;
 using Emby.Server.Implementations.IO;
 using Emby.Server.Implementations.Networking;
-using Jellyfin.Drawing.Skia;
 using MediaBrowser.Common.Configuration;
-using MediaBrowser.Controller.Drawing;
 using MediaBrowser.Controller.Extensions;
 using MediaBrowser.WebDashboard.Api;
 using Microsoft.AspNetCore.Hosting;
@@ -43,12 +40,12 @@ namespace Jellyfin.Server
         /// <summary>
         /// The name of logging configuration file containing application defaults.
         /// </summary>
-        public static readonly string LoggingConfigFileDefault = "logging.default.json";
+        public const string LoggingConfigFileDefault = "logging.default.json";
 
         /// <summary>
         /// The name of the logging configuration file containing the system-specific override settings.
         /// </summary>
-        public static readonly string LoggingConfigFileSystem = "logging.json";
+        public const string LoggingConfigFileSystem = "logging.json";
 
         private static readonly CancellationTokenSource _tokenSource = new CancellationTokenSource();
         private static readonly ILoggerFactory _loggerFactory = new SerilogLoggerFactory();
@@ -161,30 +158,13 @@ namespace Jellyfin.Server
 
             ApplicationHost.LogEnvironmentInfo(_logger, appPaths);
 
-            // Make sure we have all the code pages we can get
-            // Ref: https://docs.microsoft.com/en-us/dotnet/api/system.text.codepagesencodingprovider.instance?view=netcore-3.0#remarks
-            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
-
-            // Increase the max http request limit
-            // The default connection limit is 10 for ASP.NET hosted applications and 2 for all others.
-            ServicePointManager.DefaultConnectionLimit = Math.Max(96, ServicePointManager.DefaultConnectionLimit);
-
-            // Disable the "Expect: 100-Continue" header by default
-            // http://stackoverflow.com/questions/566437/http-post-returns-the-error-417-expectation-failed-c
-            ServicePointManager.Expect100Continue = false;
-
-            Batteries_V2.Init();
-            if (raw.sqlite3_enable_shared_cache(1) != raw.SQLITE_OK)
-            {
-                _logger.LogWarning("Failed to enable shared cache for SQLite");
-            }
+            PerformStaticInitialization();
 
             var appHost = new CoreAppHost(
                 appPaths,
                 _loggerFactory,
                 options,
                 new ManagedFileSystem(_loggerFactory.CreateLogger<ManagedFileSystem>(), appPaths),
-                GetImageEncoder(appPaths),
                 new NetworkManager(_loggerFactory.CreateLogger<NetworkManager>()));
 
             try
@@ -204,14 +184,13 @@ namespace Jellyfin.Server
                 }
 
                 ServiceCollection serviceCollection = new ServiceCollection();
-                await appHost.InitAsync(serviceCollection, startupConfig).ConfigureAwait(false);
+                appHost.Init(serviceCollection);
 
-                var webHost = CreateWebHostBuilder(appHost, serviceCollection, options, startupConfig, appPaths).Build();
+                var webHost = new WebHostBuilder().ConfigureWebHostBuilder(appHost, serviceCollection, options, startupConfig, appPaths).Build();
 
                 // Re-use the web host service provider in the app host since ASP.NET doesn't allow a custom service collection.
                 appHost.ServiceProvider = webHost.Services;
-                appHost.InitializeServices();
-                appHost.FindParts();
+                await appHost.InitializeServices().ConfigureAwait(false);
                 Migrations.MigrationRunner.Run(appHost, _loggerFactory);
 
                 try
@@ -252,14 +231,49 @@ namespace Jellyfin.Server
             }
         }
 
-        private static IWebHostBuilder CreateWebHostBuilder(
+        /// <summary>
+        /// Call static initialization methods for the application.
+        /// </summary>
+        public static void PerformStaticInitialization()
+        {
+            // Make sure we have all the code pages we can get
+            // Ref: https://docs.microsoft.com/en-us/dotnet/api/system.text.codepagesencodingprovider.instance?view=netcore-3.0#remarks
+            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
+
+            // Increase the max http request limit
+            // The default connection limit is 10 for ASP.NET hosted applications and 2 for all others.
+            ServicePointManager.DefaultConnectionLimit = Math.Max(96, ServicePointManager.DefaultConnectionLimit);
+
+            // Disable the "Expect: 100-Continue" header by default
+            // http://stackoverflow.com/questions/566437/http-post-returns-the-error-417-expectation-failed-c
+            ServicePointManager.Expect100Continue = false;
+
+            Batteries_V2.Init();
+            if (raw.sqlite3_enable_shared_cache(1) != raw.SQLITE_OK)
+            {
+                _logger.LogWarning("Failed to enable shared cache for SQLite");
+            }
+        }
+
+        /// <summary>
+        /// Configure the web host builder.
+        /// </summary>
+        /// <param name="builder">The builder to configure.</param>
+        /// <param name="appHost">The application host.</param>
+        /// <param name="serviceCollection">The application service collection.</param>
+        /// <param name="commandLineOpts">The command line options passed to the application.</param>
+        /// <param name="startupConfig">The application configuration.</param>
+        /// <param name="appPaths">The application paths.</param>
+        /// <returns>The configured web host builder.</returns>
+        public static IWebHostBuilder ConfigureWebHostBuilder(
+            this IWebHostBuilder builder,
             ApplicationHost appHost,
             IServiceCollection serviceCollection,
             StartupOptions commandLineOpts,
             IConfiguration startupConfig,
             IApplicationPaths appPaths)
         {
-            return new WebHostBuilder()
+            return builder
                 .UseKestrel((builderContext, options) =>
                 {
                     var addresses = appHost.ServerConfigurationManager
@@ -267,15 +281,20 @@ namespace Jellyfin.Server
                         .LocalNetworkAddresses
                         .Select(appHost.NormalizeConfiguredLocalAddress)
                         .Where(i => i != null)
-                        .ToList();
-                    if (addresses.Any())
+                        .ToHashSet();
+                    if (addresses.Any() && !addresses.Contains(IPAddress.Any))
                     {
+                        if (!addresses.Contains(IPAddress.Loopback))
+                        {
+                            // we must listen on loopback for LiveTV to function regardless of the settings
+                            addresses.Add(IPAddress.Loopback);
+                        }
+
                         foreach (var address in addresses)
                         {
                             _logger.LogInformation("Kestrel listening on {IpAddress}", address);
                             options.Listen(address, appHost.HttpPort);
-
-                            if (appHost.EnableHttps && appHost.Certificate != null)
+                            if (appHost.ListenWithHttps)
                             {
                                 options.Listen(address, appHost.HttpsPort, listenOptions =>
                                 {
@@ -285,11 +304,18 @@ namespace Jellyfin.Server
                             }
                             else if (builderContext.HostingEnvironment.IsDevelopment())
                             {
-                                options.Listen(address, appHost.HttpsPort, listenOptions =>
+                                try
                                 {
-                                    listenOptions.UseHttps();
-                                    listenOptions.Protocols = HttpProtocols.Http1AndHttp2;
-                                });
+                                    options.Listen(address, appHost.HttpsPort, listenOptions =>
+                                    {
+                                        listenOptions.UseHttps();
+                                        listenOptions.Protocols = HttpProtocols.Http1AndHttp2;
+                                    });
+                                }
+                                catch (InvalidOperationException ex)
+                                {
+                                    _logger.LogError(ex, "Failed to listen to HTTPS using the ASP.NET Core HTTPS development certificate. Please ensure it has been installed and set as trusted.");
+                                }
                             }
                         }
                     }
@@ -298,7 +324,7 @@ namespace Jellyfin.Server
                         _logger.LogInformation("Kestrel listening on all interfaces");
                         options.ListenAnyIP(appHost.HttpPort);
 
-                        if (appHost.EnableHttps && appHost.Certificate != null)
+                        if (appHost.ListenWithHttps)
                         {
                             options.ListenAnyIP(appHost.HttpsPort, listenOptions =>
                             {
@@ -308,11 +334,18 @@ namespace Jellyfin.Server
                         }
                         else if (builderContext.HostingEnvironment.IsDevelopment())
                         {
-                            options.ListenAnyIP(appHost.HttpsPort, listenOptions =>
+                            try
                             {
-                                listenOptions.UseHttps();
-                                listenOptions.Protocols = HttpProtocols.Http1AndHttp2;
-                            });
+                                options.ListenAnyIP(appHost.HttpsPort, listenOptions =>
+                                {
+                                    listenOptions.UseHttps();
+                                    listenOptions.Protocols = HttpProtocols.Http1AndHttp2;
+                                });
+                            }
+                            catch (InvalidOperationException ex)
+                            {
+                                _logger.LogError(ex, "Failed to listen to HTTPS using the ASP.NET Core HTTPS development certificate. Please ensure it has been installed and set as trusted.");
+                            }
                         }
                     }
                 })
@@ -492,7 +525,9 @@ namespace Jellyfin.Server
         /// Initialize the logging configuration file using the bundled resource file as a default if it doesn't exist
         /// already.
         /// </summary>
-        private static async Task InitLoggingConfigFile(IApplicationPaths appPaths)
+        /// <param name="appPaths">The application paths.</param>
+        /// <returns>A task representing the creation of the configuration file, or a completed task if the file already exists.</returns>
+        public static async Task InitLoggingConfigFile(IApplicationPaths appPaths)
         {
             // Do nothing if the config file already exists
             string configPath = Path.Combine(appPaths.ConfigurationDirectoryPath, LoggingConfigFileDefault);
@@ -512,7 +547,13 @@ namespace Jellyfin.Server
             await resource.CopyToAsync(dst).ConfigureAwait(false);
         }
 
-        private static IConfiguration CreateAppConfiguration(StartupOptions commandLineOpts, IApplicationPaths appPaths)
+        /// <summary>
+        /// Create the application configuration.
+        /// </summary>
+        /// <param name="commandLineOpts">The command line options passed to the program.</param>
+        /// <param name="appPaths">The application paths.</param>
+        /// <returns>The application configuration.</returns>
+        public static IConfiguration CreateAppConfiguration(StartupOptions commandLineOpts, IApplicationPaths appPaths)
         {
             return new ConfigurationBuilder()
                 .ConfigureAppConfiguration(commandLineOpts, appPaths)
@@ -529,7 +570,7 @@ namespace Jellyfin.Server
             var inMemoryDefaultConfig = ConfigurationOptions.DefaultConfiguration;
             if (startupConfig != null && !startupConfig.HostWebClient())
             {
-                inMemoryDefaultConfig[HttpListenerHost.DefaultRedirectKey] = "swagger/index.html";
+                inMemoryDefaultConfig[HttpListenerHost.DefaultRedirectKey] = "api-docs/swagger";
             }
 
             return config
@@ -571,25 +612,6 @@ namespace Jellyfin.Server
             }
         }
 
-        private static IImageEncoder GetImageEncoder(IApplicationPaths appPaths)
-        {
-            try
-            {
-                // Test if the native lib is available
-                SkiaEncoder.TestSkia();
-
-                return new SkiaEncoder(
-                    _loggerFactory.CreateLogger<SkiaEncoder>(),
-                    appPaths);
-            }
-            catch (Exception ex)
-            {
-                _logger.LogWarning(ex, $"Skia not available. Will fallback to {nameof(NullImageEncoder)}.");
-            }
-
-            return new NullImageEncoder();
-        }
-
         private static void StartNewInstance(StartupOptions options)
         {
             _logger.LogInformation("Starting new instance");
diff --git a/Jellyfin.Server/Startup.cs b/Jellyfin.Server/Startup.cs
index 4d7d56e9d4..a7bc156148 100644
--- a/Jellyfin.Server/Startup.cs
+++ b/Jellyfin.Server/Startup.cs
@@ -1,10 +1,13 @@
 using Jellyfin.Server.Extensions;
+using Jellyfin.Server.Middleware;
+using Jellyfin.Server.Models;
 using MediaBrowser.Controller;
 using MediaBrowser.Controller.Configuration;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
+using Prometheus;
 
 namespace Jellyfin.Server
 {
@@ -58,20 +61,32 @@ namespace Jellyfin.Server
                 app.UseDeveloperExceptionPage();
             }
 
+            app.UseMiddleware<ExceptionMiddleware>();
+
             app.UseWebSockets();
 
             app.UseResponseCompression();
 
             // TODO app.UseMiddleware<WebSocketMiddleware>();
-            app.Use(serverApplicationHost.ExecuteWebsocketHandlerAsync);
 
-            // TODO use when old API is removed: app.UseAuthentication();
-            app.UseJellyfinApiSwagger();
+            app.UseAuthentication();
+            app.UseJellyfinApiSwagger(_serverConfigurationManager);
             app.UseRouting();
+            app.UseCors(ServerCorsPolicy.DefaultPolicyName);
             app.UseAuthorization();
+            if (_serverConfigurationManager.Configuration.EnableMetrics)
+            {
+                // Must be registered after any middleware that could chagne HTTP response codes or the data will be bad
+                app.UseHttpMetrics();
+            }
+
             app.UseEndpoints(endpoints =>
             {
                 endpoints.MapControllers();
+                if (_serverConfigurationManager.Configuration.EnableMetrics)
+                {
+                    endpoints.MapMetrics(_serverConfigurationManager.Configuration.BaseUrl.TrimStart('/') + "/metrics");
+                }
             });
 
             app.Use(serverApplicationHost.ExecuteHttpHandlerAsync);
diff --git a/Jellyfin.Server/StartupOptions.cs b/Jellyfin.Server/StartupOptions.cs
index 6e15d058fc..cc250b06e2 100644
--- a/Jellyfin.Server/StartupOptions.cs
+++ b/Jellyfin.Server/StartupOptions.cs
@@ -1,6 +1,9 @@
+using System;
 using System.Collections.Generic;
 using CommandLine;
 using Emby.Server.Implementations;
+using Emby.Server.Implementations.EntryPoints;
+using Emby.Server.Implementations.Udp;
 using Emby.Server.Implementations.Updates;
 using MediaBrowser.Controller.Extensions;
 
@@ -80,6 +83,10 @@ namespace Jellyfin.Server
         [Option("plugin-manifest-url", Required = false, HelpText = "A custom URL for the plugin repository JSON manifest")]
         public string? PluginManifestUrl { get; set; }
 
+        /// <inheritdoc />
+        [Option("published-server-url", Required = false, HelpText = "Jellyfin Server URL to publish via auto discover process")]
+        public Uri? PublishedServerUrl { get; set; }
+
         /// <summary>
         /// Gets the command line options as a dictionary that can be used in the .NET configuration system.
         /// </summary>
@@ -98,6 +105,11 @@ namespace Jellyfin.Server
                 config.Add(ConfigurationExtensions.HostWebClientKey, bool.FalseString);
             }
 
+            if (PublishedServerUrl != null)
+            {
+                config.Add(UdpServer.AddressOverrideConfigKey, PublishedServerUrl.ToString());
+            }
+
             return config;
         }
     }