Iceshrimp.NET/Iceshrimp.Backend/Core/Middleware/BlazorSsrHandoffMiddleware.cs

41 lines
No EOL
1.3 KiB
C#

using System.Collections.Concurrent;
using System.Reflection;
using Iceshrimp.Backend.Core.Extensions;
using Microsoft.AspNetCore.Components.Endpoints;
namespace Iceshrimp.Backend.Core.Middleware;
public class BlazorSsrHandoffMiddleware(RequestDelegate next) : IConditionalMiddleware
{
private static readonly ConcurrentDictionary<Endpoint, bool> Cache = [];
public async Task InvokeAsync(HttpContext context)
{
context.Response.OnStarting(() =>
{
context.Response.Headers.Remove("blazor-enhanced-nav");
return Task.CompletedTask;
});
await next(context);
}
public static bool Predicate(HttpContext ctx)
=> ctx.GetEndpoint() is { } endpoint &&
Cache.GetOrAdd(endpoint, e => e.Metadata.GetMetadata<RootComponentMetadata>()
?.Type
.GetCustomAttributes<BlazorSsrAttribute>()
.Any() ??
false);
public static void DisableBlazorJsInitializers(RazorComponentsServiceOptions options)
{
var property =
options.GetType().GetProperty("JavaScriptInitializers", BindingFlags.Instance | BindingFlags.NonPublic) ??
throw new Exception("Failed to disable Blazor JS initializers");
property.SetValue(options, null);
}
}
public class BlazorSsrAttribute : Attribute;