source: TFP-WebServer/WebServer/src/FileCache/DirectAccess.cs@ 467

using System;
using System.IO;

namespace Webserver.FileCache {
        // Not caching at all, simply reading from disk on each request
        public class DirectAccess : AbstractCache {
                public override byte[] GetFileContent (string _filename) {
                        try {
                                return File.Exists (_filename) ? File.ReadAllBytes (_filename) : null;
                        } catch (Exception e) {
                                Log.Out ($"Error in DirectAccess.GetFileContent: {e}");
                        }

                        return null;
                }

                public override (int, int) Invalidate () {
                        return (0, 0);
                }
        }
}