如何检测请求是否来自应用程序

Question

如果请求来自应用程序而不是来自互联网，是否可以检测到？

var send = function() {
    var request = http.request({
        path: '/recieve',
        port: 80,
        method: 'POST'
    }, function(res) {
        // ...
    });

    request.write('foo');
    request.end();
}

app.get('/recieve', function(req, res) {
    // here I need detect if request is from application
});

send();