$dumpRequest = function () use ($container) {
    $var['request'] = $container->httpRequest;
    $var['response'] = $container->httpRequest;
    $var['session'] = $container->session;
    $var['user'] = $container->user;

    Nette\Diagnostics\Debugger::$maxDepth = 5;
    $dump = "<pre class=\"nette-dump\">" . Nette\Diagnostics\Helpers::htmlDump($var) . "</pre>\n";
    $file = Debugger::$logDirectory . '/dump_' . substr(md5($dump), 0, 6) . '.html';

    file_put_contents($file, $dump);
};

$application->onStartup[] = $dumpRequest;
$application->onShutdown[] = $dumpRequest;