Implement temporary file configuration endpoint (#15518)

* Implement temporary file configuration endpoint

* Update MaxfileSize to be a string.

* Make max file size a nullable integer

---------

Co-authored-by: Elitsa <elm@umbraco.dk>

src/Umbraco.Cms.Api.Management/Controllers/TemporaryFile/ConfigurationTemporaryFileController.cs

@@ -0,0 +1,26 @@
+using Asp.Versioning;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Umbraco.Cms.Api.Management.Factories;
+using Umbraco.Cms.Api.Management.ViewModels.TemporaryFile;
+
+namespace Umbraco.Cms.Api.Management.Controllers.TemporaryFile;
+
+[ApiVersion("1.0")]
+public class ConfigurationTemporaryFileController : TemporaryFileControllerBase
+{
+    private readonly ITemporaryFileConfigurationPresentationFactory _temporaryFileConfigurationPresentationFactory;
+
+    public ConfigurationTemporaryFileController(
+        ITemporaryFileConfigurationPresentationFactory temporaryFileConfigurationPresentationFactory) =>
+        _temporaryFileConfigurationPresentationFactory = temporaryFileConfigurationPresentationFactory;
+
+    [HttpGet("configuration")]
+    [MapToApiVersion("1.0")]
+    [ProducesResponseType(StatusCodes.Status200OK)]
+    public Task<IActionResult> Configuration()
+    {
+        TemporaryFileConfigurationResponseModel responseModel = _temporaryFileConfigurationPresentationFactory.Create();
+        return Task.FromResult<IActionResult>(Ok(responseModel));
+    }
+}

src/Umbraco.Cms.Api.Management/DependencyInjection/TemporaryFileUploadsBuilderExtensions.cs

@@ -1,4 +1,6 @@
-using Umbraco.Cms.Api.Management.Mapping.TemporaryFile;
+using Microsoft.Extensions.DependencyInjection;
+using Umbraco.Cms.Api.Management.Factories;
+using Umbraco.Cms.Api.Management.Mapping.TemporaryFile;
 using Umbraco.Cms.Core.DependencyInjection;
 using Umbraco.Cms.Core.Mapping;
 
@@ -10,6 +12,7 @@ internal static class TTemporaryFileBuilderExtensions
     {
         builder.WithCollectionBuilder<MapDefinitionCollectionBuilder>()
             .Add<TemporaryFileViewModelsMapDefinition>();
+        builder.Services.AddTransient<ITemporaryFileConfigurationPresentationFactory, TemporaryFileConfigurationPresentationFactory>();
 
         return builder;
     }

src/Umbraco.Cms.Api.Management/Factories/ITemporaryFileConfigurationPresentationFactory.cs

@@ -0,0 +1,8 @@
+using Umbraco.Cms.Api.Management.ViewModels.TemporaryFile;
+
+namespace Umbraco.Cms.Api.Management.Factories;
+
+public interface ITemporaryFileConfigurationPresentationFactory
+{
+    TemporaryFileConfigurationResponseModel Create();
+}

src/Umbraco.Cms.Api.Management/Factories/TemporaryFileConfigurationPresentationFactory.cs

@@ -0,0 +1,29 @@
+using Microsoft.Extensions.Options;
+using Umbraco.Cms.Api.Management.ViewModels.TemporaryFile;
+using Umbraco.Cms.Core.Configuration.Models;
+using Umbraco.Cms.Core.Media;
+
+namespace Umbraco.Cms.Api.Management.Factories;
+
+public class TemporaryFileConfigurationPresentationFactory : ITemporaryFileConfigurationPresentationFactory
+{
+    private readonly RuntimeSettings _runtimeSettings;
+    private readonly IImageUrlGenerator _imageUrlGenerator;
+    private readonly ContentSettings _contentSettings;
+
+    public TemporaryFileConfigurationPresentationFactory(IOptionsSnapshot<ContentSettings> contentSettings, IOptionsSnapshot<RuntimeSettings> runtimeSettings, IImageUrlGenerator imageUrlGenerator)
+    {
+        _runtimeSettings = runtimeSettings.Value;
+        _imageUrlGenerator = imageUrlGenerator;
+        _contentSettings = contentSettings.Value;
+    }
+
+    public TemporaryFileConfigurationResponseModel Create() =>
+        new()
+        {
+            ImageFileTypes = _imageUrlGenerator.SupportedImageFileTypes.ToArray(),
+            DisallowedUploadedFilesExtensions = _contentSettings.DisallowedUploadedFileExtensions,
+            AllowedUploadedFileExtensions = _contentSettings.AllowedUploadedFileExtensions,
+            MaxFileSize = _runtimeSettings.MaxRequestLength,
+        };
+}

src/Umbraco.Cms.Api.Management/ViewModels/TemporaryFile/TemporaryFileConfigurationResponseModel.cs

@@ -0,0 +1,12 @@
+namespace Umbraco.Cms.Api.Management.ViewModels.TemporaryFile;
+
+public class TemporaryFileConfigurationResponseModel
+{
+    public string[] ImageFileTypes { get; set; } = Array.Empty<string>();
+
+    public string[] DisallowedUploadedFilesExtensions { get; set; } = Array.Empty<string>();
+
+    public string[] AllowedUploadedFileExtensions { get; set; } = Array.Empty<string>();
+
+    public int? MaxFileSize { get; set; }
+}