set_prefilter('index', 'prefilter_easycaptcha'); } function prefilter_easycaptcha($content, $smarty) { $search = '#{\$comment_add\.CONTENT}(\s*)(\s*)#'; $replace = '{\$comment_add.CONTENT}$1$2'."\n".'{\$EASYCAPTCHA}'; return preg_replace($search, $replace, $content); } function check_easycaptcha($action, $comment) { global $conf, $page; if (!is_a_guest()) return $action; if (!easycaptcha_check()) { $page['errors'][] = l10n('Invalid answer'); return 'reject'; } return $action; }