<?php
/**
* Plugin Name: Coming Soon Mode
* Description: Displays a Coming Soon page to visitors while allowing logged-in users or anyone with a secret preview link to view the site.
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Enable Coming Soon mode on the front end.
*/
function knolaust_enable_coming_soon_mode() {
// Toggle Coming Soon mode on/off
$enabled = true; // set to false when launching the site
if ( ! $enabled ) {
return;
}
// Secret preview token — change this to anything unique
$secret_key = 'preview-access-key';
/**
* Allow:
* - Logged-in users
* - Admin area and login pages
* - REST API, WP-CLI, Cron, Feeds
*/
if (
is_user_logged_in() ||
is_admin() ||
( defined( 'REST_REQUEST' ) && REST_REQUEST ) ||
( defined( 'WP_CLI' ) && WP_CLI ) ||
( defined( 'DOING_CRON' ) && DOING_CRON ) ||
is_feed() ||
knolaust_is_login_request()
) {
return;
}
/**
* Secret preview link
* Example: https://example.com/?preview_key=preview-access-key
*/
if ( isset( $_GET['preview_key'] ) && $_GET['preview_key'] === $secret_key ) {
setcookie(
'knolaust_preview',
$secret_key,
time() + DAY_IN_SECONDS,
COOKIEPATH ? COOKIEPATH : '/',
COOKIE_DOMAIN,
is_ssl(),
true
);
return;
}
// If they already have the preview cookie, let them through
if ( isset( $_COOKIE['knolaust_preview'] ) && $_COOKIE['knolaust_preview'] === $secret_key ) {
return;
}
// Show Coming Soon page to everyone else
status_header( 503 );
nocache_headers();
?>
<!DOCTYPE html>
<html <?php language_attributes(); ?>>
<head>
<meta charset="<?php bloginfo( 'charset' ); ?>">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title><?php esc_html_e( 'Coming Soon', 'coming-soon-mode' ); ?></title>
<style>
html, body {
margin: 0;
padding: 0;
height: 100%;
font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
background: #0b1b2b;
color: #ffffff;
}
.csm-wrapper {
min-height: 100vh;
display: flex;
align-items: center;
justify-content: center;
text-align: center;
padding: 2rem;
}
.csm-inner {
max-width: 480px;
}
.csm-title {
font-size: 1.75rem;
margin-bottom: 0.75rem;
letter-spacing: .05em;
text-transform: uppercase;
}
.csm-text {
font-size: 1rem;
line-height: 1.6;
opacity: 0.85;
}
</style>
</head>
<body>
<div class="csm-wrapper">
<div class="csm-inner">
<h1 class="csm-title"><?php esc_html_e( 'Coming Soon', 'coming-soon-mode' ); ?></h1>
<p class="csm-text">
<?php esc_html_e( 'Our site is almost ready. Please check back soon.', 'coming-soon-mode' ); ?>
</p>
</div>
</div>
</body>
</html>
<?php
exit;
}
add_action( 'template_redirect', 'knolaust_enable_coming_soon_mode', 0 );
/**
* Detect if the current request is wp-login.php or wp-register.php
*/
function knolaust_is_login_request() {
$script = basename( $_SERVER['PHP_SELF'] ?? '' );
return ( $script === 'wp-login.php' || $script === 'wp-register.php' );
}