source: binary-improvements2/MapRendering/Web/Handlers/StaticHandler.cs@ 384

using System.IO;
using System.Net;
using AllocsFixes.FileCache;
using HttpListenerRequest = SpaceWizards.HttpListener.HttpListenerRequest;
using HttpListenerResponse = SpaceWizards.HttpListener.HttpListenerResponse;

namespace AllocsFixes.NetConnections.Servers.Web.Handlers {
        public class StaticHandler : AbsHandler {
                private readonly AbstractCache cache;
                private readonly string datapath;
                private readonly bool logMissingFiles;

                public StaticHandler (string _filePath, AbstractCache _cache, bool _logMissingFiles,
                        string _moduleName = null) : base (_moduleName) {
                        datapath = _filePath + (_filePath [_filePath.Length - 1] == '/' ? "" : "/");
                        cache = _cache;
                        logMissingFiles = _logMissingFiles;
                }

                public override void HandleRequest (string _requestPath, HttpListenerRequest _req, HttpListenerResponse _resp, WebConnection _con,
                        int _permissionLevel) {
                        string fn = _requestPath.Remove (0, urlBasePath.Length);

                        byte[] content = cache.GetFileContent (datapath + fn);

                        if (content != null) {
                                _resp.ContentType = MimeType.GetMimeType (Path.GetExtension (fn));
                                _resp.ContentLength64 = content.Length;
                                _resp.OutputStream.Write (content, 0, content.Length);
                        } else {
                                _resp.StatusCode = (int) HttpStatusCode.NotFound;
                                if (logMissingFiles) {
                                        Log.Out ("Web:Static:FileNotFound: \"" + _requestPath + "\" @ \"" + datapath + fn + "\"");
                                }
                        }
                }
        }
}