Move LibraryService.cs to Jellyfin.Api

Jellyfin.Api/Auth/BaseAuthorizationHandler.cs

@@ -44,11 +44,13 @@ namespace Jellyfin.Api.Auth
         /// <param name="claimsPrincipal">Request claims.</param>
         /// <param name="ignoreSchedule">Whether to ignore parental control.</param>
         /// <param name="localAccessOnly">Whether access is to be allowed locally only.</param>
+        /// <param name="requiredDownloadPermission">Whether validation requires download permission.</param>
         /// <returns>Validated claim status.</returns>
         protected bool ValidateClaims(
             ClaimsPrincipal claimsPrincipal,
             bool ignoreSchedule = false,
-            bool localAccessOnly = false)
+            bool localAccessOnly = false,
+            bool requiredDownloadPermission = false)
         {
             // Ensure claim has userId.
             var userId = ClaimHelpers.GetUserId(claimsPrincipal);
@@ -91,6 +93,13 @@ namespace Jellyfin.Api.Auth
                 return false;
             }
 
+            // User attempting to download without permission.
+            if (requiredDownloadPermission
+                && !user.HasPermission(PermissionKind.EnableContentDownloading))
+            {
+                return false;
+            }
+
             return true;
         }
 

Jellyfin.Api/Auth/DownloadPolicy/DownloadHandler.cs

@@ -0,0 +1,45 @@
+using System.Threading.Tasks;
+using Jellyfin.Api.Auth.DefaultAuthorizationPolicy;
+using MediaBrowser.Common.Net;
+using MediaBrowser.Controller.Library;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+
+namespace Jellyfin.Api.Auth.DownloadPolicy
+{
+    /// <summary>
+    /// Download authorization handler.
+    /// </summary>
+    public class DownloadHandler : BaseAuthorizationHandler<DownloadRequirement>
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DownloadHandler"/> class.
+        /// </summary>
+        /// <param name="userManager">Instance of the <see cref="IUserManager"/> interface.</param>
+        /// <param name="networkManager">Instance of the <see cref="INetworkManager"/> interface.</param>
+        /// <param name="httpContextAccessor">Instance of the <see cref="IHttpContextAccessor"/> interface.</param>
+        public DownloadHandler(
+            IUserManager userManager,
+            INetworkManager networkManager,
+            IHttpContextAccessor httpContextAccessor)
+            : base(userManager, networkManager, httpContextAccessor)
+        {
+        }
+
+        /// <inheritdoc />
+        protected override Task HandleRequirementAsync(AuthorizationHandlerContext context, DownloadRequirement requirement)
+        {
+            var validated = ValidateClaims(context.User);
+            if (validated)
+            {
+                context.Succeed(requirement);
+            }
+            else
+            {
+                context.Fail();
+            }
+
+            return Task.CompletedTask;
+        }
+    }
+}

Jellyfin.Api/Auth/DownloadPolicy/DownloadRequirement.cs

@@ -0,0 +1,11 @@
+using Microsoft.AspNetCore.Authorization;
+
+namespace Jellyfin.Api.Auth.DownloadPolicy
+{
+    /// <summary>
+    /// The download permission requirement.
+    /// </summary>
+    public class DownloadRequirement : IAuthorizationRequirement
+    {
+    }
+}

Jellyfin.Api/Constants/Policies.cs

@@ -29,5 +29,10 @@ namespace Jellyfin.Api.Constants
         /// Policy name for escaping schedule controls.
         /// </summary>
         public const string IgnoreSchedule = "IgnoreSchedule";
+
+        /// <summary>
+        /// Policy name for requiring download permission.
+        /// </summary>
+        public const string Download = "Download";
     }
 }

Jellyfin.Api/Controllers/LibraryController.cs

@@ -1,10 +1,41 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Text.RegularExpressions;
+using System.Threading;
+using System.Threading.Tasks;
+using Jellyfin.Api.Constants;
+using Jellyfin.Api.Extensions;
+using Jellyfin.Api.Helpers;
+using Jellyfin.Api.Models.LibraryDtos;
+using Jellyfin.Data.Entities;
+using MediaBrowser.Common.Progress;
+using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Dto;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Entities.Movies;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Net;
 using MediaBrowser.Controller.Providers;
 using MediaBrowser.Model.Activity;
+using MediaBrowser.Model.Configuration;
+using MediaBrowser.Model.Dto;
+using MediaBrowser.Model.Entities;
 using MediaBrowser.Model.Globalization;
+using MediaBrowser.Model.Net;
+using MediaBrowser.Model.Querying;
+using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.ModelBinding;
+using Microsoft.Extensions.Logging;
+using Book = MediaBrowser.Controller.Entities.Book;
+using Movie = Jellyfin.Data.Entities.Movie;
+using MusicAlbum = Jellyfin.Data.Entities.MusicAlbum;
 
 namespace Jellyfin.Api.Controllers
 {
@@ -21,6 +52,8 @@ namespace Jellyfin.Api.Controllers
         private readonly IActivityManager _activityManager;
         private readonly ILocalizationManager _localization;
         private readonly ILibraryMonitor _libraryMonitor;
+        private readonly ILogger<LibraryController> _logger;
+        private readonly IServerConfigurationManager _serverConfigurationManager;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="LibraryController"/> class.
@@ -33,6 +66,8 @@ namespace Jellyfin.Api.Controllers
         /// <param name="activityManager">Instance of the <see cref="IActivityManager"/> interface.</param>
         /// <param name="localization">Instance of the <see cref="ILocalizationManager"/> interface.</param>
         /// <param name="libraryMonitor">Instance of the <see cref="ILibraryMonitor"/> interface.</param>
+        /// <param name="logger">Instance of the <see cref="ILogger{LibraryController}"/> interface.</param>
+        /// <param name="serverConfigurationManager">Instance of the <see cref="IServerConfigurationManager"/> interface.</param>
         public LibraryController(
             IProviderManager providerManager,
             ILibraryManager libraryManager,
@@ -41,7 +76,9 @@ namespace Jellyfin.Api.Controllers
             IAuthorizationContext authContext,
             IActivityManager activityManager,
             ILocalizationManager localization,
-            ILibraryMonitor libraryMonitor)
+            ILibraryMonitor libraryMonitor,
+            ILogger<LibraryController> logger,
+            IServerConfigurationManager serverConfigurationManager)
         {
             _providerManager = providerManager;
             _libraryManager = libraryManager;
@@ -51,6 +88,932 @@ namespace Jellyfin.Api.Controllers
             _activityManager = activityManager;
             _localization = localization;
             _libraryMonitor = libraryMonitor;
+            _logger = logger;
+            _serverConfigurationManager = serverConfigurationManager;
+        }
+
+        /// <summary>
+        /// Get the original file of an item.
+        /// </summary>
+        /// <param name="itemId">The item id.</param>
+        /// <response code="200">File stream returned.</response>
+        /// <response code="404">Item not found.</response>
+        /// <returns>A <see cref="FileStreamResult"/> with the original file.</returns>
+        [HttpGet("/Items/{itemId}/File")]
+        [Authorize(Policy = Policies.DefaultAuthorization)]
+        public ActionResult GetFile([FromRoute] Guid itemId)
+        {
+            var item = _libraryManager.GetItemById(itemId);
+            if (item == null)
+            {
+                return NotFound();
+            }
+
+            using var fileStream = new FileStream(item.Path, FileMode.Open, FileAccess.Read);
+            return File(fileStream, MimeTypes.GetMimeType(item.Path));
+        }
+
+        /// <summary>
+        /// Gets critic review for an item.
+        /// </summary>
+        /// <param name="itemId">The item id.</param>
+        /// <param name="startIndex">Optional. The record index to start at. All items with a lower index will be dropped from the results.</param>
+        /// <param name="limit">Optional. The maximum number of records to return.</param>
+        /// <response code="200">Critic reviews returned.</response>
+        /// <returns>The list of critic reviews.</returns>
+        [HttpGet("/Items/{itemId}/CriticReviews")]
+        [Authorize(Policy = Policies.DefaultAuthorization)]
+        [Obsolete("This endpoint is obsolete.")]
+        [SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "itemId", Justification = "Imported from ServiceStack")]
+        [SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "startIndex", Justification = "Imported from ServiceStack")]
+        [SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "limit", Justification = "Imported from ServiceStack")]
+        public ActionResult<QueryResult<BaseItemDto>> GetCriticReviews(
+            [FromRoute] Guid itemId,
+            [FromQuery] int? startIndex,
+            [FromQuery] int? limit)
+        {
+            return new QueryResult<BaseItemDto>();
+        }
+
+        /// <summary>
+        /// Get theme songs for an item.
+        /// </summary>
+        /// <param name="itemId">The item id.</param>
+        /// <param name="userId">Optional. Filter by user id, and attach user data.</param>
+        /// <param name="inheritFromParent">Optional. Determines whether or not parent items should be searched for theme media.</param>
+        /// <response code="200">Theme songs returned.</response>
+        /// <response code="404">Item not found.</response>
+        /// <returns>The item theme songs.</returns>
+        [HttpGet("/Items/{itemId}/ThemeSongs")]
+        [Authorize(Policy = Policies.DefaultAuthorization)]
+        public ActionResult<ThemeMediaResult> GetThemeSongs(
+            [FromRoute] Guid itemId,
+            [FromQuery] Guid userId,
+            [FromQuery] bool inheritFromParent)
+        {
+            var user = !userId.Equals(Guid.Empty)
+                ? _userManager.GetUserById(userId)
+                : null;
+
+            var item = itemId.Equals(Guid.Empty)
+                ? (!userId.Equals(Guid.Empty)
+                    ? _libraryManager.GetUserRootFolder()
+                    : _libraryManager.RootFolder)
+                : _libraryManager.GetItemById(itemId);
+
+            if (item == null)
+            {
+                return NotFound("Item not found.");
+            }
+
+            IEnumerable<BaseItem> themeItems;
+
+            while (true)
+            {
+                themeItems = item.GetThemeSongs();
+
+                if (themeItems.Any() || !inheritFromParent)
+                {
+                    break;
+                }
+
+                var parent = item.GetParent();
+                if (parent == null)
+                {
+                    break;
+                }
+
+                item = parent;
+            }
+
+            var dtoOptions = new DtoOptions().AddClientFields(Request);
+            var items = themeItems
+                .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item))
+                .ToArray();
+
+            return new ThemeMediaResult
+            {
+                Items = items,
+                TotalRecordCount = items.Length,
+                OwnerId = item.Id
+            };
+        }
+
+        /// <summary>
+        /// Get theme videos for an item.
+        /// </summary>
+        /// <param name="itemId">The item id.</param>
+        /// <param name="userId">Optional. Filter by user id, and attach user data.</param>
+        /// <param name="inheritFromParent">Optional. Determines whether or not parent items should be searched for theme media.</param>
+        /// <response code="200">Theme videos returned.</response>
+        /// <response code="404">Item not found.</response>
+        /// <returns>The item theme videos.</returns>
+        [HttpGet("/Items/{itemId}/ThemeVideos")]
+        [Authorize(Policy = Policies.DefaultAuthorization)]
+        public ActionResult<ThemeMediaResult> GetThemeVideos(
+            [FromRoute] Guid itemId,
+            [FromQuery] Guid userId,
+            [FromQuery] bool inheritFromParent)
+        {
+            var user = !userId.Equals(Guid.Empty)
+                ? _userManager.GetUserById(userId)
+                : null;
+
+            var item = itemId.Equals(Guid.Empty)
+                ? (!userId.Equals(Guid.Empty)
+                    ? _libraryManager.GetUserRootFolder()
+                    : _libraryManager.RootFolder)
+                : _libraryManager.GetItemById(itemId);
+
+            if (item == null)
+            {
+                return NotFound("Item not found.");
+            }
+
+            IEnumerable<BaseItem> themeItems;
+
+            while (true)
+            {
+                themeItems = item.GetThemeVideos();
+
+                if (themeItems.Any() || !inheritFromParent)
+                {
+                    break;
+                }
+
+                var parent = item.GetParent();
+                if (parent == null)
+                {
+                    break;
+                }
+
+                item = parent;
+            }
+
+            var dtoOptions = new DtoOptions().AddClientFields(Request);
+            var items = themeItems
+                .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item))
+                .ToArray();
+
+            return new ThemeMediaResult
+            {
+                Items = items,
+                TotalRecordCount = items.Length,
+                OwnerId = item.Id
+            };
+        }
+
+        /// <summary>
+        /// Get theme songs and videos for an item.
+        /// </summary>
+        /// <param name="itemId">The item id.</param>
+        /// <param name="userId">Optional. Filter by user id, and attach user data.</param>
+        /// <param name="inheritFromParent">Optional. Determines whether or not parent items should be searched for theme media.</param>
+        /// <response code="200">Theme songs and videos returned.</response>
+        /// <response code="404">Item not found.</response>
+        /// <returns>The item theme videos.</returns>
+        public ActionResult<AllThemeMediaResult> GetThemeMedia(
+            [FromRoute] Guid itemId,
+            [FromQuery] Guid userId,
+            [FromQuery] bool inheritFromParent)
+        {
+            var themeSongs = GetThemeSongs(
+                itemId,
+                userId,
+                inheritFromParent);
+
+            var themeVideos = GetThemeVideos(
+                itemId,
+                userId,
+                inheritFromParent);
+
+            return new AllThemeMediaResult
+            {
+                ThemeSongsResult = themeSongs?.Value,
+                ThemeVideosResult = themeVideos?.Value,
+                SoundtrackSongsResult = new ThemeMediaResult()
+            };
+        }
+
+        /// <summary>
+        /// Starts a library scan.
+        /// </summary>
+        /// <response code="204">Library scan started.</response>
+        /// <returns>A <see cref="NoContentResult"/>.</returns>
+        [HttpGet("/Library/Refresh")]
+        [Authorize(Policy = Policies.RequiresElevation)]
+        public async Task<ActionResult> RefreshLibrary()
+        {
+            try
+            {
+                await _libraryManager.ValidateMediaLibrary(new SimpleProgress<double>(), CancellationToken.None).ConfigureAwait(false);
+            }
+            catch (Exception ex)
+            {
+                 _logger.LogError(ex, "Error refreshing library");
+            }
+
+            return NoContent();
+        }
+
+        /// <summary>
+        /// Deletes an item from the library and filesystem.
+        /// </summary>
+        /// <param name="itemId">The item id.</param>
+        /// <response code="204">Item deleted.</response>
+        /// <response code="401">Unauthorized access.</response>
+        /// <returns>A <see cref="NoContentResult"/>.</returns>
+        [HttpDelete("/Items/{itemId}")]
+        [Authorize(Policy = Policies.DefaultAuthorization)]
+        public ActionResult DeleteItem(Guid itemId)
+        {
+            var item = _libraryManager.GetItemById(itemId);
+            var auth = _authContext.GetAuthorizationInfo(Request);
+            var user = auth.User;
+
+            if (!item.CanDelete(user))
+            {
+                return Unauthorized("Unauthorized access");
+            }
+
+            _libraryManager.DeleteItem(
+                item,
+                new DeleteOptions { DeleteFileLocation = true },
+                true);
+
+            return NoContent();
+        }
+
+        /// <summary>
+        /// Deletes items from the library and filesystem.
+        /// </summary>
+        /// <param name="ids">The item ids.</param>
+        /// <response code="204">Items deleted.</response>
+        /// <response code="401">Unauthorized access.</response>
+        /// <returns>A <see cref="NoContentResult"/>.</returns>
+        [HttpDelete("/Items")]
+        [Authorize(Policy = Policies.DefaultAuthorization)]
+        public ActionResult DeleteItems([FromQuery] string ids)
+        {
+            var itemIds = string.IsNullOrWhiteSpace(ids)
+                ? Array.Empty<string>()
+                : RequestHelpers.Split(ids, ',', true);
+
+            foreach (var i in itemIds)
+            {
+                var item = _libraryManager.GetItemById(i);
+                var auth = _authContext.GetAuthorizationInfo(Request);
+                var user = auth.User;
+
+                if (!item.CanDelete(user))
+                {
+                    if (ids.Length > 1)
+                    {
+                        return Unauthorized("Unauthorized access");
+                    }
+
+                    continue;
+                }
+
+                _libraryManager.DeleteItem(
+                    item,
+                    new DeleteOptions { DeleteFileLocation = true },
+                    true);
+            }
+
+            return NoContent();
+        }
+
+        /// <summary>
+        /// Get item counts.
+        /// </summary>
+        /// <param name="userId">Optional. Get counts from a specific user's library.</param>
+        /// <param name="isFavorite">Optional. Get counts of favorite items.</param>
+        /// <response code="200">Item counts returned.</response>
+        /// <returns>Item counts.</returns>
+        [HttpGet("/Items/Counts")]
+        [Authorize(Policy = Policies.DefaultAuthorization)]
+        public ActionResult<ItemCounts> GetItemCounts(
+            [FromQuery] Guid userId,
+            [FromQuery] bool? isFavorite)
+        {
+            var user = userId.Equals(Guid.Empty)
+                ? null
+                : _userManager.GetUserById(userId);
+
+            var counts = new ItemCounts
+            {
+                AlbumCount = GetCount(typeof(MusicAlbum), user, isFavorite),
+                EpisodeCount = GetCount(typeof(Episode), user, isFavorite),
+                MovieCount = GetCount(typeof(Movie), user, isFavorite),
+                SeriesCount = GetCount(typeof(Series), user, isFavorite),
+                SongCount = GetCount(typeof(Audio), user, isFavorite),
+                MusicVideoCount = GetCount(typeof(MusicVideo), user, isFavorite),
+                BoxSetCount = GetCount(typeof(BoxSet), user, isFavorite),
+                BookCount = GetCount(typeof(Book), user, isFavorite)
+            };
+
+            return counts;
+        }
+
+        /// <summary>
+        /// Gets all parents of an item.
+        /// </summary>
+        /// <param name="itemId">The item id.</param>
+        /// <param name="userId">Optional. Filter by user id, and attach user data.</param>
+        /// <response code="200">Item parents returned.</response>
+        /// <response code="404">Item not found.</response>
+        /// <returns>Item parents.</returns>
+        [HttpGet("/Items/{itemId}/Ancestors")]
+        [Authorize(Policy = Policies.DefaultAuthorization)]
+        public ActionResult<IEnumerable<BaseItemDto>> GetAncestors([FromRoute] Guid itemId, [FromQuery] Guid userId)
+        {
+            var item = _libraryManager.GetItemById(itemId);
+
+            if (item == null)
+            {
+                return NotFound("Item not found");
+            }
+
+            var baseItemDtos = new List<BaseItemDto>();
+
+            var user = !userId.Equals(Guid.Empty)
+                ? _userManager.GetUserById(userId)
+                : null;
+
+            var dtoOptions = new DtoOptions().AddClientFields(Request);
+            BaseItem parent = item.GetParent();
+
+            while (parent != null)
+            {
+                if (user != null)
+                {
+                    parent = TranslateParentItem(parent, user);
+                }
+
+                baseItemDtos.Add(_dtoService.GetBaseItemDto(parent, dtoOptions, user));
+
+                parent = parent.GetParent();
+            }
+
+            return baseItemDtos;
+        }
+
+        /// <summary>
+        /// Gets a list of physical paths from virtual folders.
+        /// </summary>
+        /// <response code="200">Physical paths returned.</response>
+        /// <returns>List of physical paths.</returns>
+        [HttpGet("/Library/PhysicalPaths")]
+        [Authorize(Policy = Policies.RequiresElevation)]
+        public ActionResult<IEnumerable<string>> GetPhysicalPaths()
+        {
+            return Ok(_libraryManager.RootFolder.Children
+                .SelectMany(c => c.PhysicalLocations));
+        }
+
+        /// <summary>
+        /// Gets all user media folders.
+        /// </summary>
+        /// <param name="isHidden">Optional. Filter by folders that are marked hidden, or not.</param>
+        /// <returns>List of user media folders.</returns>
+        [HttpGet("/Library/MediaFolders")]
+        [Authorize(Policy = Policies.DefaultAuthorization)]
+        public ActionResult<QueryResult<BaseItemDto>> GetMediaFolders([FromQuery] bool? isHidden)
+        {
+            var items = _libraryManager.GetUserRootFolder().Children.Concat(_libraryManager.RootFolder.VirtualChildren).OrderBy(i => i.SortName).ToList();
+
+            if (isHidden.HasValue)
+            {
+                var val = isHidden.Value;
+
+                items = items.Where(i => i.IsHidden == val).ToList();
+            }
+
+            var dtoOptions = new DtoOptions().AddClientFields(Request);
+            var result = new QueryResult<BaseItemDto>
+            {
+                TotalRecordCount = items.Count,
+                Items = items.Select(i => _dtoService.GetBaseItemDto(i, dtoOptions)).ToArray()
+            };
+
+            return result;
+        }
+
+        /// <summary>
+        /// Reports that new episodes of a series have been added by an external source.
+        /// </summary>
+        /// <param name="tvdbId">The tvdbId.</param>
+        /// <response code="204">Report success.</response>
+        /// <returns>A <see cref="NoContentResult"/>.</returns>
+        [HttpPost("/Library/Series/Added")]
+        [HttpPost("/Library/Series/Updated")]
+        [Authorize(Policy = Policies.DefaultAuthorization)]
+        public ActionResult PostUpdatedSeries([FromQuery] string tvdbId)
+        {
+            var series = _libraryManager.GetItemList(new InternalItemsQuery
+            {
+                IncludeItemTypes = new[] { nameof(Series) },
+                DtoOptions = new DtoOptions(false)
+                {
+                    EnableImages = false
+                }
+            }).Where(i => string.Equals(tvdbId, i.GetProviderId(MediaBrowser.Model.Entities.MetadataProvider.Tvdb), StringComparison.OrdinalIgnoreCase)).ToArray();
+
+            foreach (var item in series)
+            {
+                _libraryMonitor.ReportFileSystemChanged(item.Path);
+            }
+
+            return NoContent();
+        }
+
+        /// <summary>
+        /// Reports that new movies have been added by an external source.
+        /// </summary>
+        /// <param name="tmdbId">The tmdbId.</param>
+        /// <param name="imdbId">The imdbId.</param>
+        /// <response code="204">Report success.</response>
+        /// <returns>A <see cref="NoContentResult"/>.</returns>
+        [HttpPost("/Library/Movies/Added")]
+        [HttpPost("/Library/Movies/Updated")]
+        [Authorize(Policy = Policies.DefaultAuthorization)]
+        public ActionResult PostUpdatedMovies([FromRoute] string tmdbId, [FromRoute] string imdbId)
+        {
+            var movies = _libraryManager.GetItemList(new InternalItemsQuery
+            {
+                IncludeItemTypes = new[] { nameof(Movie) },
+                DtoOptions = new DtoOptions(false)
+                {
+                    EnableImages = false
+                }
+            });
+
+            if (!string.IsNullOrWhiteSpace(imdbId))
+            {
+                movies = movies.Where(i => string.Equals(imdbId, i.GetProviderId(MediaBrowser.Model.Entities.MetadataProvider.Imdb), StringComparison.OrdinalIgnoreCase)).ToList();
+            }
+            else if (!string.IsNullOrWhiteSpace(tmdbId))
+            {
+                movies = movies.Where(i => string.Equals(tmdbId, i.GetProviderId(MediaBrowser.Model.Entities.MetadataProvider.Tmdb), StringComparison.OrdinalIgnoreCase)).ToList();
+            }
+            else
+            {
+                movies = new List<BaseItem>();
+            }
+
+            foreach (var item in movies)
+            {
+                _libraryMonitor.ReportFileSystemChanged(item.Path);
+            }
+
+            return NoContent();
+        }
+
+        /// <summary>
+        /// Reports that new movies have been added by an external source.
+        /// </summary>
+        /// <param name="updates">A list of updated media paths.</param>
+        /// <response code="204">Report success.</response>
+        /// <returns>A <see cref="NoContentResult"/>.</returns>
+        [HttpPost("/Library/Media/Updated")]
+        [Authorize(Policy = Policies.DefaultAuthorization)]
+        public ActionResult PostUpdatedMedia([FromBody, BindRequired] MediaUpdateInfoDto[] updates)
+        {
+            foreach (var item in updates)
+            {
+                _libraryMonitor.ReportFileSystemChanged(item.Path);
+            }
+
+            return NoContent();
+        }
+
+        /// <summary>
+        /// Downloads item media.
+        /// </summary>
+        /// <param name="itemId">The item id.</param>
+        /// <response code="200">Media downloaded.</response>
+        /// <response code="404">Item not found.</response>
+        /// <returns>A <see cref="FileResult"/> containing the media stream.</returns>
+        /// <exception cref="ArgumentException">User can't download or item can't be downloaded.</exception>
+        [HttpGet("/Items/{itemId}/Download")]
+        [Authorize(Policy = Policies.Download)]
+        public ActionResult GetDownload([FromRoute] Guid itemId)
+        {
+            var item = _libraryManager.GetItemById(itemId);
+            if (item == null)
+            {
+                return NotFound();
+            }
+
+            var auth = _authContext.GetAuthorizationInfo(Request);
+
+            var user = auth.User;
+
+            if (user != null)
+            {
+                if (!item.CanDownload(user))
+                {
+                    throw new ArgumentException("Item does not support downloading");
+                }
+            }
+            else
+            {
+                if (!item.CanDownload())
+                {
+                    throw new ArgumentException("Item does not support downloading");
+                }
+            }
+
+            if (user != null)
+            {
+                LogDownload(item, user, auth);
+            }
+
+            var path = item.Path;
+
+            // Quotes are valid in linux. They'll possibly cause issues here
+            var filename = (Path.GetFileName(path) ?? string.Empty).Replace("\"", string.Empty, StringComparison.Ordinal);
+            if (!string.IsNullOrWhiteSpace(filename))
+            {
+                // Kestrel doesn't support non-ASCII characters in headers
+                if (Regex.IsMatch(filename, @"[^\p{IsBasicLatin}]"))
+                {
+                    // Manually encoding non-ASCII characters, following https://tools.ietf.org/html/rfc5987#section-3.2.2
+                    filename = WebUtility.UrlEncode(filename);
+                }
+            }
+
+            // TODO determine non-ASCII validity.
+            using var fileStream = new FileStream(path, FileMode.Open, FileAccess.Read);
+            return File(fileStream, MimeTypes.GetMimeType(path), filename);
+        }
+
+        /// <summary>
+        /// Gets similar items.
+        /// </summary>
+        /// <param name="itemId">The item id.</param>
+        /// <param name="excludeArtistIds">Exclude artist ids.</param>
+        /// <param name="enableImages">(Unused) Optional. include image information in output.</param>
+        /// <param name="enableUserData">(Unused) Optional. include user data.</param>
+        /// <param name="imageTypeLimit">(Unused) Optional. the max number of images to return, per image type.</param>
+        /// <param name="enableImageTypes">(Unused) Optional. The image types to include in the output.</param>
+        /// <param name="userId">Optional. Filter by user id, and attach user data.</param>
+        /// <param name="limit">Optional. The maximum number of records to return.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines, TrailerUrls.</param>
+        /// <returns>A <see cref="QueryResult{BaseItemDto}"/> containing the similar items.</returns>
+        [HttpGet("/Artists/{itemId}/Similar")]
+        [HttpGet("/Items/{itemId}/Similar")]
+        [HttpGet("/Albums/{itemId}/Similar")]
+        [HttpGet("/Shows/{itemId}/Similar")]
+        [HttpGet("/Movies/{itemId}/Similar")]
+        [HttpGet("/Trailers/{itemId}/Similar")]
+        [SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "enableImages", Justification = "Imported from ServiceStack")]
+        [SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "enableUserData", Justification = "Imported from ServiceStack")]
+        [SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "imageTypeLimit", Justification = "Imported from ServiceStack")]
+        [SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "enableImageTypes", Justification = "Imported from ServiceStack")]
+        public ActionResult<QueryResult<BaseItemDto>> GetSimilarItems(
+            [FromRoute] Guid itemId,
+            [FromQuery] string excludeArtistIds,
+            [FromQuery] bool? enableImages,
+            [FromQuery] bool? enableUserData,
+            [FromQuery] int? imageTypeLimit,
+            [FromQuery] string enableImageTypes,
+            [FromQuery] Guid userId,
+            [FromQuery] int? limit,
+            [FromQuery] string fields)
+        {
+            var item = itemId.Equals(Guid.Empty)
+                ? (!userId.Equals(Guid.Empty)
+                    ? _libraryManager.GetUserRootFolder()
+                    : _libraryManager.RootFolder)
+                : _libraryManager.GetItemById(itemId);
+
+            var program = item as IHasProgramAttributes;
+            if (item is MediaBrowser.Controller.Entities.Movies.Movie || (program != null && program.IsMovie) || item is Trailer)
+            {
+                /*
+                 * // TODO
+                return new MoviesService(
+                    _moviesServiceLogger,
+                    ServerConfigurationManager,
+                    ResultFactory,
+                    _userManager,
+                    _libraryManager,
+                    _dtoService,
+                    _authContext)
+                {
+                    Request = Request,
+                }.GetSimilarItemsResult(request);*/
+            }
+
+            if (program != null && program.IsSeries)
+            {
+                return GetSimilarItemsResult(
+                    item,
+                    excludeArtistIds,
+                    userId,
+                    limit,
+                    fields,
+                    new[] { nameof(Series) });
+            }
+
+            if (item is MediaBrowser.Controller.Entities.TV.Episode || (item is IItemByName && !(item is MusicArtist)))
+            {
+                return new QueryResult<BaseItemDto>();
+            }
+
+            return GetSimilarItemsResult(
+                item,
+                excludeArtistIds,
+                userId,
+                limit,
+                fields,
+                new[] { item.GetType().Name });
+        }
+
+        /// <summary>
+        /// Gets the library options info.
+        /// </summary>
+        /// <param name="libraryContentType">Library content type.</param>
+        /// <param name="isNewLibrary">Whether this is a new library.</param>
+        /// <response code="200">Library options info returned.</response>
+        /// <returns>Library options info.</returns>
+        [HttpGet("/Libraries/AvailableOptions")]
+        [Authorize(Policy = Policies.FirstTimeSetupOrElevated)]
+        public ActionResult<LibraryOptionsResultDto> GetLibraryOptionsInfo([FromQuery] string libraryContentType, [FromQuery] bool isNewLibrary)
+        {
+            var result = new LibraryOptionsResultDto();
+
+            var types = GetRepresentativeItemTypes(libraryContentType);
+            var typesList = types.ToList();
+
+            var plugins = _providerManager.GetAllMetadataPlugins()
+                .Where(i => types.Contains(i.ItemType, StringComparer.OrdinalIgnoreCase))
+                .OrderBy(i => typesList.IndexOf(i.ItemType))
+                .ToList();
+
+            result.MetadataSavers = plugins
+                .SelectMany(i => i.Plugins.Where(p => p.Type == MetadataPluginType.MetadataSaver))
+                .Select(i => new LibraryOptionInfoDto
+                {
+                    Name = i.Name,
+                    DefaultEnabled = IsSaverEnabledByDefault(i.Name, types, isNewLibrary)
+                })
+                .GroupBy(i => i.Name, StringComparer.OrdinalIgnoreCase)
+                .Select(x => x.First())
+                .ToArray();
+
+            result.MetadataReaders = plugins
+                .SelectMany(i => i.Plugins.Where(p => p.Type == MetadataPluginType.LocalMetadataProvider))
+                .Select(i => new LibraryOptionInfoDto
+                {
+                    Name = i.Name,
+                    DefaultEnabled = true
+                })
+                .GroupBy(i => i.Name, StringComparer.OrdinalIgnoreCase)
+                .Select(x => x.First())
+                .ToArray();
+
+            result.SubtitleFetchers = plugins
+                .SelectMany(i => i.Plugins.Where(p => p.Type == MetadataPluginType.SubtitleFetcher))
+                .Select(i => new LibraryOptionInfoDto
+                {
+                    Name = i.Name,
+                    DefaultEnabled = true
+                })
+                .GroupBy(i => i.Name, StringComparer.OrdinalIgnoreCase)
+                .Select(x => x.First())
+                .ToArray();
+
+            var typeOptions = new List<LibraryTypeOptionsDto>();
+
+            foreach (var type in types)
+            {
+                TypeOptions.DefaultImageOptions.TryGetValue(type, out var defaultImageOptions);
+
+                typeOptions.Add(new LibraryTypeOptionsDto
+                {
+                    Type = type,
+
+                    MetadataFetchers = plugins
+                    .Where(i => string.Equals(i.ItemType, type, StringComparison.OrdinalIgnoreCase))
+                    .SelectMany(i => i.Plugins.Where(p => p.Type == MetadataPluginType.MetadataFetcher))
+                    .Select(i => new LibraryOptionInfoDto
+                    {
+                        Name = i.Name,
+                        DefaultEnabled = IsMetadataFetcherEnabledByDefault(i.Name, type, isNewLibrary)
+                    })
+                    .GroupBy(i => i.Name, StringComparer.OrdinalIgnoreCase)
+                    .Select(x => x.First())
+                    .ToArray(),
+
+                    ImageFetchers = plugins
+                    .Where(i => string.Equals(i.ItemType, type, StringComparison.OrdinalIgnoreCase))
+                    .SelectMany(i => i.Plugins.Where(p => p.Type == MetadataPluginType.ImageFetcher))
+                    .Select(i => new LibraryOptionInfoDto
+                    {
+                        Name = i.Name,
+                        DefaultEnabled = IsImageFetcherEnabledByDefault(i.Name, type, isNewLibrary)
+                    })
+                    .GroupBy(i => i.Name, StringComparer.OrdinalIgnoreCase)
+                    .Select(x => x.First())
+                    .ToArray(),
+
+                    SupportedImageTypes = plugins
+                    .Where(i => string.Equals(i.ItemType, type, StringComparison.OrdinalIgnoreCase))
+                    .SelectMany(i => i.SupportedImageTypes ?? Array.Empty<ImageType>())
+                    .Distinct()
+                    .ToArray(),
+
+                    DefaultImageOptions = defaultImageOptions ?? Array.Empty<ImageOption>()
+                });
+            }
+
+            result.TypeOptions = typeOptions.ToArray();
+
+            return result;
+        }
+
+        private int GetCount(Type type, User? user, bool? isFavorite)
+        {
+            var query = new InternalItemsQuery(user)
+            {
+                IncludeItemTypes = new[] { type.Name },
+                Limit = 0,
+                Recursive = true,
+                IsVirtualItem = false,
+                IsFavorite = isFavorite,
+                DtoOptions = new DtoOptions(false)
+                {
+                    EnableImages = false
+                }
+            };
+
+            return _libraryManager.GetItemsResult(query).TotalRecordCount;
+        }
+
+        private BaseItem TranslateParentItem(BaseItem item, User user)
+        {
+            return item.GetParent() is AggregateFolder
+                ? _libraryManager.GetUserRootFolder().GetChildren(user, true)
+                    .FirstOrDefault(i => i.PhysicalLocations.Contains(item.Path))
+                : item;
+        }
+
+        private void LogDownload(BaseItem item, User user, AuthorizationInfo auth)
+        {
+            try
+            {
+                _activityManager.Create(new ActivityLog(
+                    string.Format(CultureInfo.InvariantCulture, _localization.GetLocalizedString("UserDownloadingItemWithValues"), user.Username, item.Name),
+                    "UserDownloadingContent",
+                    auth.UserId)
+                {
+                    ShortOverview = string.Format(CultureInfo.InvariantCulture, _localization.GetLocalizedString("AppDeviceValues"), auth.Client, auth.Device),
+                });
+            }
+            catch
+            {
+                // Logged at lower levels
+            }
+        }
+
+        private QueryResult<BaseItemDto> GetSimilarItemsResult(
+            BaseItem item,
+            string excludeArtistIds,
+            Guid userId,
+            int? limit,
+            string fields,
+            string[] includeItemTypes)
+        {
+            var user = !userId.Equals(Guid.Empty) ? _userManager.GetUserById(userId) : null;
+            var dtoOptions = new DtoOptions()
+                .AddItemFields(fields)
+                .AddClientFields(Request);
+
+            var query = new InternalItemsQuery(user)
+            {
+                Limit = limit,
+                IncludeItemTypes = includeItemTypes,
+                SimilarTo = item,
+                DtoOptions = dtoOptions,
+                EnableTotalRecordCount = false
+            };
+
+            // ExcludeArtistIds
+            if (!string.IsNullOrEmpty(excludeArtistIds))
+            {
+                query.ExcludeArtistIds = RequestHelpers.GetGuids(excludeArtistIds);
+            }
+
+            List<BaseItem> itemsResult;
+
+            if (item is MusicArtist)
+            {
+                query.IncludeItemTypes = Array.Empty<string>();
+
+                itemsResult = _libraryManager.GetArtists(query).Items.Select(i => i.Item1).ToList();
+            }
+            else
+            {
+                itemsResult = _libraryManager.GetItemList(query);
+            }
+
+            var returnList = _dtoService.GetBaseItemDtos(itemsResult, dtoOptions, user);
+
+            var result = new QueryResult<BaseItemDto>
+            {
+                Items = returnList,
+                TotalRecordCount = itemsResult.Count
+            };
+
+            return result;
+        }
+
+        private static string[] GetRepresentativeItemTypes(string contentType)
+        {
+            return contentType switch
+            {
+                CollectionType.BoxSets => new[] { "BoxSet" },
+                CollectionType.Playlists => new[] { "Playlist" },
+                CollectionType.Movies => new[] { "Movie" },
+                CollectionType.TvShows => new[] { "Series", "Season", "Episode" },
+                CollectionType.Books => new[] { "Book" },
+                CollectionType.Music => new[] { "MusicArtist", "MusicAlbum", "Audio", "MusicVideo" },
+                CollectionType.HomeVideos => new[] { "Video", "Photo" },
+                CollectionType.Photos => new[] { "Video", "Photo" },
+                CollectionType.MusicVideos => new[] { "MusicVideo" },
+                _ => new[] { "Series", "Season", "Episode", "Movie" }
+            };
+        }
+
+        private bool IsSaverEnabledByDefault(string name, string[] itemTypes, bool isNewLibrary)
+        {
+            if (isNewLibrary)
+            {
+                return false;
+            }
+
+            var metadataOptions = _serverConfigurationManager.Configuration.MetadataOptions
+                .Where(i => itemTypes.Contains(i.ItemType ?? string.Empty, StringComparer.OrdinalIgnoreCase))
+                .ToArray();
+
+            return metadataOptions.Length == 0 || metadataOptions.Any(i => !i.DisabledMetadataSavers.Contains(name, StringComparer.OrdinalIgnoreCase));
+        }
+
+        private bool IsMetadataFetcherEnabledByDefault(string name, string type, bool isNewLibrary)
+        {
+            if (isNewLibrary)
+            {
+                if (string.Equals(name, "TheMovieDb", StringComparison.OrdinalIgnoreCase))
+                {
+                    return !(string.Equals(type, "Season", StringComparison.OrdinalIgnoreCase)
+                         || string.Equals(type, "Episode", StringComparison.OrdinalIgnoreCase)
+                         || string.Equals(type, "MusicVideo", StringComparison.OrdinalIgnoreCase));
+                }
+
+                return string.Equals(name, "TheTVDB", StringComparison.OrdinalIgnoreCase)
+                   || string.Equals(name, "TheAudioDB", StringComparison.OrdinalIgnoreCase)
+                   || string.Equals(name, "MusicBrainz", StringComparison.OrdinalIgnoreCase);
+            }
+
+            var metadataOptions = _serverConfigurationManager.Configuration.MetadataOptions
+                .Where(i => string.Equals(i.ItemType, type, StringComparison.OrdinalIgnoreCase))
+                .ToArray();
+
+            return metadataOptions.Length == 0
+               || metadataOptions.Any(i => !i.DisabledMetadataFetchers.Contains(name, StringComparer.OrdinalIgnoreCase));
+        }
+
+        private bool IsImageFetcherEnabledByDefault(string name, string type, bool isNewLibrary)
+        {
+            if (isNewLibrary)
+            {
+                if (string.Equals(name, "TheMovieDb", StringComparison.OrdinalIgnoreCase))
+                {
+                    return !string.Equals(type, "Series", StringComparison.OrdinalIgnoreCase)
+                           && !string.Equals(type, "Season", StringComparison.OrdinalIgnoreCase)
+                           && !string.Equals(type, "Episode", StringComparison.OrdinalIgnoreCase)
+                           && !string.Equals(type, "MusicVideo", StringComparison.OrdinalIgnoreCase);
+                }
+
+                return string.Equals(name, "TheTVDB", StringComparison.OrdinalIgnoreCase)
+                       || string.Equals(name, "Screen Grabber", StringComparison.OrdinalIgnoreCase)
+                       || string.Equals(name, "TheAudioDB", StringComparison.OrdinalIgnoreCase)
+                       || string.Equals(name, "Image Extractor", StringComparison.OrdinalIgnoreCase);
+            }
+
+            var metadataOptions = _serverConfigurationManager.Configuration.MetadataOptions
+                .Where(i => string.Equals(i.ItemType, type, StringComparison.OrdinalIgnoreCase))
+                .ToArray();
+
+            if (metadataOptions.Length == 0)
+            {
+                return true;
+            }
+
+            return metadataOptions.Any(i => !i.DisabledImageFetchers.Contains(name, StringComparer.OrdinalIgnoreCase));
         }
     }
 }

Jellyfin.Api/Helpers/RequestHelpers.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Linq;
 
 namespace Jellyfin.Api.Helpers
 {
@@ -25,5 +26,22 @@ namespace Jellyfin.Api.Helpers
                 ? value.Split(new[] { separator }, StringSplitOptions.RemoveEmptyEntries)
                 : value.Split(separator);
         }
+
+        /// <summary>
+        /// Splits a comma delimited string and parses Guids.
+        /// </summary>
+        /// <param name="value">Input value.</param>
+        /// <returns>Parsed Guids.</returns>
+        public static Guid[] GetGuids(string value)
+        {
+            if (value == null)
+            {
+                return Array.Empty<Guid>();
+            }
+
+            return value.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries)
+                .Select(i => new Guid(i))
+                .ToArray();
+        }
     }
 }

Jellyfin.Api/Models/LibraryDtos/LibraryOptionInfoDto.cs

@@ -0,0 +1,18 @@
+namespace Jellyfin.Api.Models.LibraryDtos
+{
+    /// <summary>
+    /// Library option info dto.
+    /// </summary>
+    public class LibraryOptionInfoDto
+    {
+        /// <summary>
+        /// Gets or sets name.
+        /// </summary>
+        public string? Name { get; set; }
+
+        /// <summary>
+        /// Gets or sets a value indicating whether default enabled.
+        /// </summary>
+        public bool DefaultEnabled { get; set; }
+    }
+}

Jellyfin.Api/Models/LibraryDtos/LibraryOptionsResultDto.cs

@@ -0,0 +1,34 @@
+using System.Diagnostics.CodeAnalysis;
+
+namespace Jellyfin.Api.Models.LibraryDtos
+{
+    /// <summary>
+    /// Library options result dto.
+    /// </summary>
+    public class LibraryOptionsResultDto
+    {
+        /// <summary>
+        /// Gets or sets the metadata savers.
+        /// </summary>
+        [SuppressMessage("Microsoft.Performance", "CA1819:ReturnArrays", MessageId = "MetadataSavers", Justification = "Imported from ServiceStack")]
+        public LibraryOptionInfoDto[] MetadataSavers { get; set; } = null!;
+
+        /// <summary>
+        /// Gets or sets the metadata readers.
+        /// </summary>
+        [SuppressMessage("Microsoft.Performance", "CA1819:ReturnArrays", MessageId = "MetadataReaders", Justification = "Imported from ServiceStack")]
+        public LibraryOptionInfoDto[] MetadataReaders { get; set; } = null!;
+
+        /// <summary>
+        /// Gets or sets the subtitle fetchers.
+        /// </summary>
+        [SuppressMessage("Microsoft.Performance", "CA1819:ReturnArrays", MessageId = "SubtitleFetchers", Justification = "Imported from ServiceStack")]
+        public LibraryOptionInfoDto[] SubtitleFetchers { get; set; } = null!;
+
+        /// <summary>
+        /// Gets or sets the type options.
+        /// </summary>
+        [SuppressMessage("Microsoft.Performance", "CA1819:ReturnArrays", MessageId = "TypeOptions", Justification = "Imported from ServiceStack")]
+        public LibraryTypeOptionsDto[] TypeOptions { get; set; } = null!;
+    }
+}

Jellyfin.Api/Models/LibraryDtos/LibraryTypeOptionsDto.cs

@@ -0,0 +1,41 @@
+using System.Diagnostics.CodeAnalysis;
+using MediaBrowser.Model.Configuration;
+using MediaBrowser.Model.Entities;
+
+namespace Jellyfin.Api.Models.LibraryDtos
+{
+    /// <summary>
+    /// Library type options dto.
+    /// </summary>
+    public class LibraryTypeOptionsDto
+    {
+        /// <summary>
+        /// Gets or sets the type.
+        /// </summary>
+        public string? Type { get; set; }
+
+        /// <summary>
+        /// Gets or sets the metadata fetchers.
+        /// </summary>
+        [SuppressMessage("Microsoft.Performance", "CA1819:ReturnArrays", MessageId = "MetadataFetchers", Justification = "Imported from ServiceStack")]
+        public LibraryOptionInfoDto[] MetadataFetchers { get; set; } = null!;
+
+        /// <summary>
+        /// Gets or sets the image fetchers.
+        /// </summary>
+        [SuppressMessage("Microsoft.Performance", "CA1819:ReturnArrays", MessageId = "ImageFetchers", Justification = "Imported from ServiceStack")]
+        public LibraryOptionInfoDto[] ImageFetchers { get; set; } = null!;
+
+        /// <summary>
+        /// Gets or sets the supported image types.
+        /// </summary>
+        [SuppressMessage("Microsoft.Performance", "CA1819:ReturnArrays", MessageId = "SupportedImageTypes", Justification = "Imported from ServiceStack")]
+        public ImageType[] SupportedImageTypes { get; set; } = null!;
+
+        /// <summary>
+        /// Gets or sets the default image options.
+        /// </summary>
+        [SuppressMessage("Microsoft.Performance", "CA1819:ReturnArrays", MessageId = "DefaultImageOptions", Justification = "Imported from ServiceStack")]
+        public ImageOption[] DefaultImageOptions { get; set; } = null!;
+    }
+}

Jellyfin.Api/Models/LibraryDtos/MediaUpdateInfoDto.cs

@@ -0,0 +1,19 @@
+namespace Jellyfin.Api.Models.LibraryDtos
+{
+    /// <summary>
+    /// Media Update Info Dto.
+    /// </summary>
+    public class MediaUpdateInfoDto
+    {
+        /// <summary>
+        /// Gets or sets media path.
+        /// </summary>
+        public string? Path { get; set; }
+
+        /// <summary>
+        /// Gets or sets media update type.
+        /// Created, Modified, Deleted.
+        /// </summary>
+        public string? UpdateType { get; set; }
+    }
+}

Jellyfin.Server/Extensions/ApiServiceCollectionExtensions.cs

@@ -6,6 +6,7 @@ using System.Reflection;
 using Jellyfin.Api;
 using Jellyfin.Api.Auth;
 using Jellyfin.Api.Auth.DefaultAuthorizationPolicy;
+using Jellyfin.Api.Auth.DownloadPolicy;
 using Jellyfin.Api.Auth.FirstTimeSetupOrElevatedPolicy;
 using Jellyfin.Api.Auth.IgnoreSchedulePolicy;
 using Jellyfin.Api.Auth.LocalAccessPolicy;
@@ -39,6 +40,7 @@ namespace Jellyfin.Server.Extensions
         public static IServiceCollection AddJellyfinApiAuthorization(this IServiceCollection serviceCollection)
         {
             serviceCollection.AddSingleton<IAuthorizationHandler, DefaultAuthorizationHandler>();
+            serviceCollection.AddSingleton<IAuthorizationHandler, DownloadHandler>();
             serviceCollection.AddSingleton<IAuthorizationHandler, FirstTimeSetupOrElevatedHandler>();
             serviceCollection.AddSingleton<IAuthorizationHandler, IgnoreScheduleHandler>();
             serviceCollection.AddSingleton<IAuthorizationHandler, LocalAccessHandler>();
@@ -52,6 +54,13 @@ namespace Jellyfin.Server.Extensions
                         policy.AddAuthenticationSchemes(AuthenticationSchemes.CustomAuthentication);
                         policy.AddRequirements(new DefaultAuthorizationRequirement());
                     });
+                options.AddPolicy(
+                    Policies.Download,
+                    policy =>
+                    {
+                        policy.AddAuthenticationSchemes(AuthenticationSchemes.CustomAuthentication);
+                        policy.AddRequirements(new DownloadRequirement());
+                    });
                 options.AddPolicy(
                     Policies.FirstTimeSetupOrElevated,
                     policy =>

MediaBrowser.Api/MediaBrowser.Api.csproj

@@ -14,6 +14,10 @@
     <Compile Include="..\SharedVersion.cs" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Folder Include="Library" />
+  </ItemGroup>
+
   <PropertyGroup>
     <TargetFramework>netstandard2.1</TargetFramework>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>