/// <summary>
        /// Executes the middleware action.
        /// </summary>
        /// <param name="httpContext">The current HTTP context.</param>
        /// <param name="networkManager">The network manager.</param>
        /// <returns>The async task.</returns>
        public async Task Invoke(HttpContext httpContext, INetworkManager networkManager)
        {
            if (httpContext.IsLocal())
            {
                // Running locally.
                await _next(httpContext).ConfigureAwait(false);

                return;
            }

            var remoteIp = httpContext.Connection.RemoteIpAddress ?? IPAddress.Loopback;

            if (!networkManager.HasRemoteAccess(remoteIp))
            {
                return;
            }

            await _next(httpContext).ConfigureAwait(false);
        }