function maintenance_alert_404()
{
if (!is_404()) {
return;
}
$email = get_option('mainwp_maintenance_opt_alert_404_email');
if (empty($email) || !preg_match("/^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\\.[a-zA-Z0-9-.]+\$/is", $email)) {
return;
}
// set status
header("HTTP/1.1 404 Not Found");
header("Status: 404 Not Found");
// site info
$blog = get_bloginfo('name');
$site = get_bloginfo('url') . '/';
$from_email = get_bloginfo('admin_email');
// referrer
if (isset($_SERVER['HTTP_REFERER'])) {
$referer = MainWPHelper::clean($_SERVER['HTTP_REFERER']);
} else {
$referer = "undefined";
}
$protocol = isset($_SERVER['HTTPS']) && strcasecmp($_SERVER['HTTPS'], 'off') ? 'https://' : 'http://';
// request URI
if (isset($_SERVER['REQUEST_URI']) && isset($_SERVER["HTTP_HOST"])) {
$request = MainWPHelper::clean($protocol . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"]);
} else {
$request = "undefined";
}
// query string
if (isset($_SERVER['QUERY_STRING'])) {
$string = MainWPHelper::clean($_SERVER['QUERY_STRING']);
} else {
$string = "undefined";
}
// IP address
if (isset($_SERVER['REMOTE_ADDR'])) {
$address = MainWPHelper::clean($_SERVER['REMOTE_ADDR']);
} else {
$address = "undefined";
}
// user agent
if (isset($_SERVER['HTTP_USER_AGENT'])) {
$agent = MainWPHelper::clean($_SERVER['HTTP_USER_AGENT']);
} else {
$agent = "undefined";
}
// identity
if (isset($_SERVER['REMOTE_IDENT'])) {
$remote = MainWPHelper::clean($_SERVER['REMOTE_IDENT']);
} else {
$remote = "undefined";
}
// log time
$time = MainWPHelper::clean(date("F jS Y, h:ia", time()));
$mail = "<div>" . "TIME: " . $time . "</div>" . "<div>" . "*404: " . $request . "</div>" . "<div>" . "SITE: " . $site . "</div>" . "<div>" . "REFERRER: " . $referer . "</div>" . "<div>" . "QUERY STRING: " . $string . "</div>" . "<div>" . "REMOTE ADDRESS: " . $address . "</div>" . "<div>" . "REMOTE IDENTITY: " . $remote . "</div>" . "<div>" . "USER AGENT: " . $agent . "</div>";
$mail = '<div>404 alert</div>
<div></div>' . $mail;
wp_mail($email, 'MainWP - 404 Alert: ' . $blog, MainWPHelper::formatEmail($email, $mail), array('From: "' . $from_email . '" <' . $from_email . '>', 'content-type: text/html'));
}
