function wpcf7_captcha_url($filename)
{
$url = trailingslashit(wpcf7_captcha_tmp_url()) . $filename;
if (is_ssl() && 'http:' == substr($url, 0, 5)) {
$url = 'https:' . substr($url, 5);
}
return apply_filters('wpcf7_captcha_url', esc_url_raw($url));
}
function wpcf7_captcha_ajax_refill($items)
{
if (!is_array($items)) {
return $items;
}
$fes = wpcf7_scan_shortcode(array('type' => 'captchac'));
if (empty($fes)) {
return $items;
}
$refill = array();
foreach ($fes as $fe) {
$name = $fe['name'];
$options = $fe['options'];
if (empty($name)) {
continue;
}
$op = wpcf7_captchac_options($options);
if ($filename = wpcf7_generate_captcha($op)) {
$captcha_url = trailingslashit(wpcf7_captcha_tmp_url()) . $filename;
$refill[$name] = $captcha_url;
}
}
if (!empty($refill)) {
$items['captcha'] = $refill;
}
return $items;
}