Add Api and startup check for sufficient storage capacity (#13888)

Jellyfin.Api/Controllers/SystemController.cs

@@ -6,6 +6,7 @@ using System.Linq;
 using System.Net.Mime;
 using Jellyfin.Api.Attributes;
 using Jellyfin.Api.Constants;
+using Jellyfin.Api.Models.SystemInfoDtos;
 using MediaBrowser.Common.Api;
 using MediaBrowser.Common.Configuration;
 using MediaBrowser.Common.Extensions;
@@ -71,6 +72,19 @@ public class SystemController : BaseJellyfinApiController
     public ActionResult<SystemInfo> GetSystemInfo()
         => _systemManager.GetSystemInfo(Request);
 
+    /// <summary>
+    /// Gets information about the server.
+    /// </summary>
+    /// <response code="200">Information retrieved.</response>
+    /// <response code="403">User does not have permission to retrieve information.</response>
+    /// <returns>A <see cref="SystemInfo"/> with info about the system.</returns>
+    [HttpGet("Info/Storage")]
+    [Authorize(Policy = Policies.RequiresElevation)]
+    [ProducesResponseType(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status403Forbidden)]
+    public ActionResult<SystemStorageDto> GetSystemStorage()
+        => Ok(SystemStorageDto.FromSystemStorageInfo(_systemManager.GetSystemStorageInfo()));
+
     /// <summary>
     /// Gets public information about the server.
     /// </summary>

Jellyfin.Api/Models/SystemInfoDtos/FolderStorageDto.cs

@@ -0,0 +1,46 @@
+using MediaBrowser.Model.System;
+
+namespace Jellyfin.Api.Models.SystemInfoDtos;
+
+/// <summary>
+/// Contains information about a specific folder.
+/// </summary>
+public record FolderStorageDto
+{
+    /// <summary>
+    /// Gets the path of the folder in question.
+    /// </summary>
+    public required string Path { get; init; }
+
+    /// <summary>
+    /// Gets the free space of the underlying storage device of the <see cref="Path"/>.
+    /// </summary>
+    public long FreeSpace { get; init; }
+
+    /// <summary>
+    /// Gets the used space of the underlying storage device of the <see cref="Path"/>.
+    /// </summary>
+    public long UsedSpace { get; init; }
+
+    /// <summary>
+    /// Gets the kind of storage device of the <see cref="Path"/>.
+    /// </summary>
+    public string? StorageType { get; init; }
+
+    /// <summary>
+    /// Gets the Device Identifier.
+    /// </summary>
+    public string? DeviceId { get; init; }
+
+    internal static FolderStorageDto FromFolderStorageInfo(FolderStorageInfo model)
+    {
+        return new()
+        {
+            Path = model.Path,
+            FreeSpace = model.FreeSpace,
+            UsedSpace = model.UsedSpace,
+            StorageType = model.StorageType,
+            DeviceId = model.DeviceId
+        };
+    }
+}

Jellyfin.Api/Models/SystemInfoDtos/LibraryStorageDto.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using MediaBrowser.Model.System;
+
+namespace Jellyfin.Api.Models.SystemInfoDtos;
+
+/// <summary>
+/// Contains informations about a libraries storage informations.
+/// </summary>
+public record LibraryStorageDto
+{
+      /// <summary>
+    /// Gets or sets the Library Id.
+    /// </summary>
+    public required Guid Id { get; set; }
+
+    /// <summary>
+    /// Gets or sets the name of the library.
+    /// </summary>
+    public required string Name { get; set; }
+
+    /// <summary>
+    /// Gets or sets the storage informations about the folders used in a library.
+    /// </summary>
+    public required IReadOnlyCollection<FolderStorageDto> Folders { get; set; }
+
+    internal static LibraryStorageDto FromLibraryStorageModel(LibraryStorageInfo model)
+    {
+        return new()
+        {
+            Id = model.Id,
+            Name = model.Name,
+            Folders = model.Folders.Select(FolderStorageDto.FromFolderStorageInfo).ToArray()
+        };
+    }
+}

Jellyfin.Api/Models/SystemInfoDtos/SystemStorageDto.cs

@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using MediaBrowser.Model.System;
+
+namespace Jellyfin.Api.Models.SystemInfoDtos;
+
+/// <summary>
+/// Contains informations about the systems storage.
+/// </summary>
+public record SystemStorageDto
+{
+    /// <summary>
+    /// Gets or sets the Storage information of the program data folder.
+    /// </summary>
+    public required FolderStorageDto ProgramDataFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the Storage information of the web UI resources folder.
+    /// </summary>
+    public required FolderStorageDto WebFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the Storage information of the folder where images are cached.
+    /// </summary>
+    public required FolderStorageDto ImageCacheFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the Storage information of the cache folder.
+    /// </summary>
+    public required FolderStorageDto CacheFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the Storage information of the folder where logfiles are saved to.
+    /// </summary>
+    public required FolderStorageDto LogFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the Storage information of the folder where metadata is stored.
+    /// </summary>
+    public required FolderStorageDto InternalMetadataFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the Storage information of the transcoding cache.
+    /// </summary>
+    public required FolderStorageDto TranscodingTempFolder { get; set; }
+
+    /// <summary>
+    /// Gets or sets the storage informations of all libraries.
+    /// </summary>
+    public required IReadOnlyCollection<LibraryStorageDto> Libraries { get; set; }
+
+    internal static SystemStorageDto FromSystemStorageInfo(SystemStorageInfo model)
+    {
+        return new SystemStorageDto()
+        {
+            ProgramDataFolder = FolderStorageDto.FromFolderStorageInfo(model.ProgramDataFolder),
+            WebFolder = FolderStorageDto.FromFolderStorageInfo(model.WebFolder),
+            ImageCacheFolder = FolderStorageDto.FromFolderStorageInfo(model.ImageCacheFolder),
+            CacheFolder = FolderStorageDto.FromFolderStorageInfo(model.CacheFolder),
+            LogFolder = FolderStorageDto.FromFolderStorageInfo(model.LogFolder),
+            InternalMetadataFolder = FolderStorageDto.FromFolderStorageInfo(model.InternalMetadataFolder),
+            TranscodingTempFolder = FolderStorageDto.FromFolderStorageInfo(model.TranscodingTempFolder),
+            Libraries = model.Libraries.Select(LibraryStorageDto.FromLibraryStorageModel).ToArray()
+        };
+    }
+}