Apachai.PictureContentModule.ServeImage C# (CSharp) Method

        void ServeImage(IManosContext ctx, string path)
        {
            string etag, fileEtag;
            if (ctx.Request.Headers.TryGetNormalizedValue ("If-None-Match", out etag)
                && etagCache.TryGetValue (path, out fileEtag)
                && fileEtag.Equals (etag, StringComparison.Ordinal)) {

                ctx.Response.StatusCode = 304;
                ctx.Response.End ();
                return;
            }

            if (File.Exists (path)) {
                ctx.Response.Headers.SetNormalizedHeader ("Content-Type", "image/jpeg");
                ctx.Response.Headers.SetNormalizedHeader ("Expires", expires);
                ctx.Response.Headers.SetNormalizedHeader ("Cache-Control", cacheControl);
                if (!etagCache.ContainsKey (path))
                    etagCache[path] = GetEtagFromFile (path);
                ctx.Response.Headers.SetNormalizedHeader ("ETag", etagCache[path]);

                ctx.Response.SendFile (path);
            } else
                ctx.Response.StatusCode = 404;

            ctx.Response.End ();
        }