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divi/core/components/mu-plugins/SupportCenterSafeModeDisabl...

75 lines
2.4 KiB
PHP

<?php
/**
* Plugin Name: Elegant Themes Support Center :: Safe Mode Child Theme Disabler
* Plugin URI: http://www.elegantthemes.com
* Description: When the ET Support Center's Safe Mode is activated, this Must-Use Plugin will temporarily disable any active child themes for that user.
* Author: Elegant Themes
* Author URI: http://www.elegantthemes.com
* License: GPLv2 or later
*
* @package ET\Core\SupportCenter\SafeModeDisableChildThemes
* @author Elegant Themes <http://www.elegantthemes.com>
* @license GNU General Public License v2 <http://www.gnu.org/licenses/gpl-2.0.html>
*/
// Quick exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Disable Child Theme (if Safe Mode is active)
*
* The `is_child_theme()` function returns TRUE if a child theme is active. Parent theme info can be gathered from
* the child theme's settings, so in the case of an active child theme we can capture the parent theme's info and
* temporarily push the parent theme as active (similar to how WP lets the user preview a theme before activation).
*
* @since 3.20
* @since 3.23 Moved from `ET_Core_SupportCenter::maybe_disable_child_theme()` for an improved Safe Mode experience.
*
* @param $current_theme
*
* @return false|string
*/
function et_safe_mode_maybe_disable_child_theme( $current_theme ) {
// Verbose logging: only log if `wp-config.php` has defined `ET_DEBUG='support_center'`
$DEBUG_ET_SUPPORT_CENTER = defined( 'ET_DEBUG' ) && 'support_center' === ET_DEBUG;
if ( ! isset( $_COOKIE['et-support-center-safe-mode'] ) ) {
if ( $DEBUG_ET_SUPPORT_CENTER ) {
error_log( 'ET Support Center :: Safe Mode: No cookie found' );
}
return $current_theme;
}
$verify = get_option( 'et-support-center-safe-mode-verify' );
if ( ! $verify ) {
if ( $DEBUG_ET_SUPPORT_CENTER ) {
error_log( 'ET Support Center :: Safe Mode: No option found to verify cookie' );
}
return $current_theme;
}
if ( $_COOKIE['et-support-center-safe-mode'] !== $verify ) {
if ( $DEBUG_ET_SUPPORT_CENTER ) {
error_log( 'ET Support Center :: Safe Mode: Cookie/Option mismatch' );
}
return $current_theme;
}
$template = get_option( 'template' );
if ( $template !== $current_theme ) {
return $template;
}
return $current_theme;
}
add_filter( 'template', 'et_safe_mode_maybe_disable_child_theme' );
add_filter( 'stylesheet', 'et_safe_mode_maybe_disable_child_theme' );