Sindbad~EG File Manager

<?php


function flatsome_maintenance_mode() {

	// Exit if not active.
	if ( ! get_theme_mod( 'maintenance_mode', 0 ) ) {
		return;
	}

	global $pagenow;

	nocache_headers();

	if ( $pagenow !== 'wp-login.php' && ! current_user_can( 'manage_options' ) && ! is_admin() ) {

		// Remove Woocommerce store notice.
		remove_action( 'wp_footer', 'woocommerce_demo_store' );
		remove_action( 'wp_footer', 'flatsome_cookie_notice_template' );

		// Clear Cachify Cache.
		if ( has_action( 'cachify_flush_cache' ) ) {
			do_action( 'cachify_flush_cache' );
		}

		// Clear Super Cache.
		if ( function_exists( 'wp_cache_clear_cache' ) ) {
			ob_end_clean();
			wp_cache_clear_cache();
		}

		// Clear W3 Total Cache.
		if ( function_exists( 'w3tc_pgcache_flush' ) ) {
			ob_end_clean();
			w3tc_pgcache_flush();
		}

		$protocol = wp_get_server_protocol();
		header( "$protocol 503 Service Unavailable", true, 503 );
		header( 'Content-Type: text/html; charset=utf-8' );
		header( 'Retry-After: 600' );

		get_template_part( 'maintenance' );
		die();
	}
}

add_action( 'template_redirect', 'flatsome_maintenance_mode' );