1
0
mirror of https://github.com/chylex/Discord-History-Tracker.git synced 2025-07-22 22:04:34 +02:00
Discord-History-Tracker/app/Server/Endpoints/ViewerEndpoint.cs

33 lines
1.1 KiB
C#

using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using DHT.Server.Service.Middlewares;
using DHT.Utils.Resources;
using Microsoft.AspNetCore.Http;
namespace DHT.Server.Endpoints;
[ServerAuthorizationMiddleware.NoAuthorization]
sealed class ViewerEndpoint(ResourceLoader resources) : BaseEndpoint {
private readonly Dictionary<string, byte[]?> cache = new ();
private readonly SemaphoreSlim cacheSemaphore = new (1);
protected override async Task Respond(HttpRequest request, HttpResponse response, CancellationToken cancellationToken) {
string path = (string?) request.RouteValues["path"] ?? "index.html";
string resourcePath = "Viewer/" + path;
byte[]? resourceBytes;
await cacheSemaphore.WaitAsync(cancellationToken);
try {
if (!cache.TryGetValue(resourcePath, out resourceBytes)) {
cache[resourcePath] = resourceBytes = await resources.ReadBytesAsyncIfExists(resourcePath);
}
} finally {
cacheSemaphore.Release();
}
await WriteFileIfFound(response, path, resourceBytes, cancellationToken);
}
}