-$textdomain = 'kairo_auth';
-$textlocale = $utils->negotiateLocale(array('en', 'de'));
-putenv('LC_ALL='.$textlocale);
-bindtextdomain($textdomain, '../locale');
-bind_textdomain_codeset($textdomain, 'utf-8');
-textdomain($textdomain);
+// Sanitize settings.
+$settings['piwik_enabled'] = (@$settings['piwik_enabled']) ? true : false;
+$settings['piwik_site_id'] = intval(@$settings['piwik_site_id']);
+$settings['piwik_url'] = strlen(@$settings['piwik_url']) ? $settings['piwik_url'] : '/piwik/';
+$settings['piwik_tracker_path'] = strlen(@$settings['piwik_tracker_path']) ? $settings['piwik_tracker_path'] : '../vendor/piwik/piwik-php-tracker/';