Radicade/Server/Rooms/RoomsCDN.cs

using Microsoft.AspNetCore.Mvc;
using SixLabors.ImageSharp;

namespace RadicadeServer.CDN
{
	[Route("cdn/room/")]
	[Route("room/")]
	[Route("unity/")]
	[Route("unity_assets/")]
	[Route("roomserver/unity_assets/")]
	public class RoomsCDN : Controller
	{


		[HttpGet]
		public IActionResult Index() => Ok(new { status = "ok" });

		[HttpGet("{datablob}")]
		public IActionResult GetDataBlob(string datablob)
		{
			if (!CdnStorageNames.IsServable(datablob)) return BadRequest();

			var name = CdnStorageNames.Resolve(datablob);
			if (name == null) return NotFound();

			CdnCaching.Apply(this, CdnCaching.ForBlob(name));

			return PhysicalFile(Path.Join(DBConfig.CDNStorage, name), "application/octet-stream", enableRangeProcessing: true);
		}

		[HttpGet("{assetId}/{target}/{version}")]
		[HttpGet("{assetId}/{target}")]
		public IActionResult GetUnityAssetRaw(string assetId, int? target, int? version)
		{
			// The bytes half of the two-step download, for a client that asks by id rather than by
			// the Filename the metadata route handed it: /unity/{id} is the id with no extension,
			// while an imported bundle is stored as <id>.assetbundle, so both spellings resolve.
			if (!CdnStorageNames.IsServable(assetId)) return BadRequest();

			var name = CdnStorageNames.Resolve(assetId);
			if (name == null) return NotFound();

			CdnCaching.Apply(this, CdnCaching.Immutable);

			return PhysicalFile(Path.Join(DBConfig.CDNStorage, name), "application/octet-stream", enableRangeProcessing: true);
		}
	}
}