public static function from_email()
{
$admin_email = get_option('admin_email');
$sitename = strtolower($_SERVER['SERVER_NAME']);
if (wpcf7_is_localhost()) {
return $admin_email;
}
if (substr($sitename, 0, 4) == 'www.') {
$sitename = substr($sitename, 4);
}
if (strpbrk($admin_email, '@') == '@' . $sitename) {
return $admin_email;
}
return 'wordpress@' . $sitename;
}
function wpcf7_is_email_in_site_domain($email)
{
if (wpcf7_is_localhost()) {
return true;
}
$site_domain = strtolower($_SERVER['SERVER_NAME']);
if (preg_match('/^[0-9.]+$/', $site_domain)) {
// 123.456.789.012
return true;
}
if (wpcf7_is_email_in_domain($email, $site_domain)) {
return true;
}
if (preg_match('%^https?://([^/]+)%', home_url(), $matches)) {
$site_domain = strtolower($matches[1]);
if ($site_domain != strtolower($_SERVER['SERVER_NAME']) && wpcf7_is_email_in_domain($email, $site_domain)) {
return true;
}
}
return false;
}
public function test_email_in_site_domain($content)
{
if (wpcf7_is_localhost()) {
return true;
}
$site_domain = strtolower($_SERVER['SERVER_NAME']);
if (substr($site_domain, 0, 4) == 'www.') {
$site_domain = substr($site_domain, 4);
}
$content = trim($content);
if (preg_match('/<(.+)>$/', $content, $matches)) {
$email = strtolower($matches[1]);
} else {
$email = strtolower($content);
}
return substr($email, -strlen($site_domain)) == $site_domain;
}
function wpcf7_is_email_in_site_domain($email)
{
if (wpcf7_is_localhost()) {
return true;
}
$site_domain = strtolower($_SERVER['SERVER_NAME']);
if (preg_match('/^[0-9.]+$/', $site_domain)) {
// 123.456.789.012
return true;
}
if (wpcf7_is_email_in_domain($email, $site_domain)) {
return true;
}
$home_url = home_url();
// for interoperability with WordPress MU Domain Mapping plugin
if (is_multisite() && function_exists('domain_mapping_siteurl')) {
$domain_mapping_siteurl = domain_mapping_siteurl(false);
if ($domain_mapping_siteurl) {
$home_url = $domain_mapping_siteurl;
}
}
if (preg_match('%^https?://([^/]+)%', $home_url, $matches)) {
$site_domain = strtolower($matches[1]);
if ($site_domain != strtolower($_SERVER['SERVER_NAME']) && wpcf7_is_email_in_domain($email, $site_domain)) {
return true;
}
}
return false;
}
