filters.php

<?php
// located in the /app/filters.php

/* some original code */

Route::filter('statistics.auth.basic', function() {
    $user = Request::getUser();
    $password = Request::getPassword();

    if (!App::environment('development') &&
            (
            (!$user || !$password) ||
            ($user != Config::get('statistics-auth-basic.user') || $password != Config::get('statistics-auth-basic.password')
            )) {
        $response = Response::make('Not authorized', 401);
        $response->header('WWW-Authenticate', 'Basic realm="statistics"');
        return $response;
    }
});

/* some original code */

statistics-auth-basic.php

<?php
// located in the /app/config/statistics-auth-basic.php

return array(
    'user' => 'user',
    'password' => 'password'
);