diff --git a/wp-content/mu-plugins/health-check-troubleshooting-mode.php b/wp-content/mu-plugins/health-check-troubleshooting-mode.php
new file mode 100644
index 000000000..d5112b317
--- /dev/null
+++ b/wp-content/mu-plugins/health-check-troubleshooting-mode.php
@@ -0,0 +1,1253 @@
+init();
+ }
+
+ /**
+ * Actually initiation of the plugin.
+ *
+ * @return void
+ */
+ public function init() {
+ add_action( 'admin_bar_menu', array( $this, 'health_check_troubleshoot_menu_bar' ), 999 );
+
+ add_filter( 'option_active_plugins', array( $this, 'health_check_loopback_test_disable_plugins' ) );
+ add_filter( 'option_active_sitewide_plugins', array( $this, 'health_check_loopback_test_disable_plugins' ) );
+
+ add_filter( 'pre_option_template', array( $this, 'health_check_troubleshoot_theme_template' ) );
+ add_filter( 'pre_option_stylesheet', array( $this, 'health_check_troubleshoot_theme_stylesheet' ) );
+
+ add_filter( 'wp_fatal_error_handler_enabled', array( $this, 'wp_fatal_error_handler_enabled' ) );
+
+ add_filter( 'bulk_actions-plugins', array( $this, 'remove_plugin_bulk_actions' ) );
+ add_filter( 'handle_bulk_actions-plugins', array( $this, 'handle_plugin_bulk_actions' ), 10, 3 );
+
+ add_action( 'admin_notices', array( $this, 'prompt_install_default_theme' ) );
+ add_filter( 'user_has_cap', array( $this, 'remove_plugin_theme_install' ) );
+
+ add_action( 'plugin_action_links', array( $this, 'plugin_actions' ), 50, 4 );
+
+ add_action( 'admin_notices', array( $this, 'display_dashboard_widget' ) );
+ add_action( 'admin_footer', array( $this, 'dashboard_widget_scripts' ) );
+
+ add_action( 'wp_logout', array( $this, 'health_check_troubleshooter_mode_logout' ) );
+ add_action( 'init', array( $this, 'health_check_troubleshoot_get_captures' ) );
+
+ add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_assets' ) );
+
+ /*
+ * Plugin activations can be forced by other tools in things like themes, so let's
+ * attempt to work around that by forcing plugin lists back and forth.
+ *
+ * This is not an ideal scenario, but one we must accept as reality.
+ */
+ add_action( 'activated_plugin', array( $this, 'plugin_activated' ) );
+
+ $this->load_options();
+ }
+
+ /**
+ * Set up the class variables based on option table entries.
+ *
+ * @return void
+ */
+ public function load_options() {
+ $this->disable_hash = get_option( 'health-check-disable-plugin-hash', null );
+ $this->allowed_plugins = get_option( 'health-check-allowed-plugins', array() );
+ $this->default_theme = ( 'yes' === get_option( 'health-check-default-theme', 'yes' ) ? true : false );
+ $this->active_plugins = $this->get_unfiltered_plugin_list();
+ $this->current_theme = get_option( 'health-check-current-theme', false );
+ }
+
+ /**
+ * Enqueue styles and scripts used by the MU plugin if applicable.
+ *
+ * @return void
+ */
+ public function enqueue_assets() {
+ if ( ! $this->is_troubleshooting() || ! is_admin() ) {
+ return;
+ }
+
+ wp_enqueue_style( 'health-check', plugins_url( '/health-check/assets/css/health-check.css' ), array(), HEALTH_CHECK_TROUBLESHOOTING_MODE_PLUGIN_VERSION );
+
+ if ( ! wp_script_is( 'site-health', 'registered' ) ) {
+ wp_enqueue_script( 'site-health', plugins_url( '/health-check/assets/javascript/health-check.js' ), array( 'jquery', 'wp-a11y', 'wp-util' ), HEALTH_CHECK_TROUBLESHOOTING_MODE_PLUGIN_VERSION, true );
+ }
+
+ wp_enqueue_script( 'health-check', plugins_url( '/health-check/assets/javascript/troubleshooting-mode.js' ), array( 'site-health' ), HEALTH_CHECK_TROUBLESHOOTING_MODE_PLUGIN_VERSION, true );
+ }
+
+ /**
+ * Allow troubleshooting Mode to override the WSOD protection introduced in WordPress 5.2.0
+ *
+ * This will prevent incorrect reporting of errors while testing sites, without touching the
+ * settings put in by site admins in regular scenarios.
+ *
+ * @param bool $enabled
+ *
+ * @return bool
+ */
+ public function wp_fatal_error_handler_enabled( $enabled ) {
+ if ( ! $this->is_troubleshooting() ) {
+ return $enabled;
+ }
+
+ return false;
+ }
+
+ /**
+ * Add a prompt to install a default theme.
+ *
+ * If no default theme exists, we can't reliably assert if an issue is
+ * caused by the theme. In these cases we should provide an easy step
+ * to get to, and install, one of the default themes.
+ *
+ * @return void
+ */
+ public function prompt_install_default_theme() {
+ if ( ! $this->is_troubleshooting() || $this->has_default_theme() ) {
+ return;
+ }
+
+ printf(
+ '
',
+ esc_html__( 'You don\'t have any of the default themes installed. A default theme helps you determine if your current theme is causing conflicts.', 'health-check' ),
+ esc_url(
+ admin_url(
+ sprintf(
+ 'theme-install.php?theme=%s',
+ $this->default_themes[0]
+ )
+ )
+ ),
+ esc_html__( 'Install a default theme', 'health-check' )
+ );
+ }
+
+ /**
+ * Remove the `Add` option for plugins and themes.
+ *
+ * When troubleshooting, adding or changing themes and plugins can
+ * lead to unexpected results. Remove these menu items to make it less
+ * likely that a user breaks their site through these.
+ *
+ * @param array $caps Array containing the current users capabilities.
+ *
+ * @return array
+ */
+ public function remove_plugin_theme_install( $caps ) {
+ if ( ! $this->is_troubleshooting() ) {
+ return $caps;
+ }
+
+ $caps['switch_themes'] = false;
+
+ /*
+ * This is to early for `get_current_screen()`, so we have to do it the
+ * old fashioned way with `$_SERVER`.
+ */
+ if ( 'plugin-install.php' === substr( $_SERVER['REQUEST_URI'], -18 ) ) {
+ $caps['activate_plugins'] = false;
+ }
+
+ return $caps;
+ }
+
+ /**
+ * Fire on plugin activation.
+ *
+ * When in Troubleshooting Mode, plugin activations
+ * will clear out the DB entry for `active_plugins`, this is bad.
+ *
+ * We fix this by re-setting the DB entry if anything tries
+ * to modify it during troubleshooting.
+ *
+ * @return void
+ */
+ public function plugin_activated() {
+ if ( ! $this->is_troubleshooting() ) {
+ return;
+ }
+
+ // Force the database entry for active plugins if someone tried changing plugins while in Troubleshooting Mode.
+ update_option( 'active_plugins', $this->active_plugins );
+ }
+
+ public function handle_plugin_bulk_actions( $sendback, $action, $plugins ) {
+ if ( ! $this->is_troubleshooting() && 'health-check-troubleshoot' !== $action ) {
+ return $sendback;
+ }
+
+ $sendback = self_admin_url( 'plugins.php' );
+
+ if ( 'health-check-troubleshoot' === $action ) {
+ foreach ( $plugins as $single_plugin ) {
+ $plugin_slug = explode( '/', $single_plugin );
+ $plugin_slug = $plugin_slug[0];
+
+ if ( in_array( $single_plugin, $this->active_plugins, true ) ) {
+ $this->allowed_plugins[ $plugin_slug ] = $plugin_slug;
+ }
+ }
+
+ Health_Check_Troubleshoot::initiate_troubleshooting_mode( $this->allowed_plugins );
+
+ if ( ! $this->test_site_state() ) {
+ $this->allowed_plugins = array();
+ update_option( 'health-check-allowed-plugins', $this->allowed_plugins );
+
+ $this->add_dashboard_notice(
+ __( 'When enabling troubleshooting on the selected plugins, a site failure occurred. Because of this the selected plugins were kept disabled while troubleshooting mode started.', 'health-check' ),
+ 'warning'
+ );
+ }
+ }
+
+ if ( 'health-check-enable' === $action ) {
+ $old_allowed_plugins = $this->allowed_plugins;
+
+ foreach ( $plugins as $single_plugin ) {
+ $plugin_slug = explode( '/', $single_plugin );
+ $plugin_slug = $plugin_slug[0];
+
+ if ( in_array( $single_plugin, $this->active_plugins, true ) ) {
+ $this->allowed_plugins[ $plugin_slug ] = $plugin_slug;
+ }
+ }
+
+ update_option( 'health-check-allowed-plugins', $this->allowed_plugins );
+
+ if ( ! $this->test_site_state() ) {
+ $this->allowed_plugins = $old_allowed_plugins;
+ update_option( 'health-check-allowed-plugins', $old_allowed_plugins );
+
+ $this->add_dashboard_notice(
+ __( 'When bulk-enabling plugins, a site failure occurred. Because of this the change was automatically reverted.', 'health-check' ),
+ 'warning'
+ );
+ }
+ }
+
+ if ( 'health-check-disable' === $action ) {
+ $old_allowed_plugins = $this->allowed_plugins;
+
+ foreach ( $plugins as $single_plugin ) {
+ $plugin_slug = explode( '/', $single_plugin );
+ $plugin_slug = $plugin_slug[0];
+
+ if ( in_array( $single_plugin, $this->active_plugins, true ) ) {
+ unset( $this->allowed_plugins[ $plugin_slug ] );
+ }
+ }
+
+ update_option( 'health-check-allowed-plugins', $this->allowed_plugins );
+
+ if ( ! $this->test_site_state() ) {
+ $this->allowed_plugins = $old_allowed_plugins;
+ update_option( 'health-check-allowed-plugins', $old_allowed_plugins );
+
+ $this->add_dashboard_notice(
+ __( 'When bulk-disabling plugins, a site failure occurred. Because of this the change was automatically reverted.', 'health-check' ),
+ 'warning'
+ );
+ }
+ }
+
+ return $sendback;
+ }
+
+ public function remove_plugin_bulk_actions( $actions ) {
+ if ( ! $this->is_troubleshooting() ) {
+ $actions['health-check-troubleshoot'] = __( 'Troubleshoot', 'health-check' );
+
+ return $actions;
+ }
+
+ $actions = array(
+ 'health-check-enable' => __( 'Enable while troubleshooting', 'health-check' ),
+ 'health-check-disable' => __( 'Disable while troubleshooting', 'health-check' ),
+ );
+
+ return $actions;
+ }
+
+ /**
+ * Modify plugin actions.
+ *
+ * While in Troubleshooting Mode, weird things will happen if you start
+ * modifying your plugin list. Prevent this, but also add in the ability
+ * to enable or disable a plugin during troubleshooting from this screen.
+ *
+ * @param $actions
+ * @param $plugin_file
+ * @param $plugin_data
+ * @param $context
+ *
+ * @return array
+ */
+ public function plugin_actions( $actions, $plugin_file, $plugin_data, $context ) {
+ if ( ! $this->is_troubleshooting() ) {
+ return $actions;
+ }
+
+ if ( 'mustuse' === $context ) {
+ return $actions;
+ }
+
+ /*
+ * Disable all plugin actions when in Troubleshooting Mode.
+ *
+ * We intentionally remove all plugin actions to avoid accidental clicking, activating or deactivating plugins
+ * while our plugin is altering plugin data may lead to unexpected behaviors, so to keep things sane we do
+ * not allow users to perform any actions during this time.
+ */
+ $actions = array();
+
+ // This isn't an active plugin, so does not apply to our troubleshooting scenarios.
+ if ( ! in_array( $plugin_file, $this->active_plugins, true ) ) {
+ return $actions;
+ }
+
+ // Set a slug if the plugin lives in the plugins directory root.
+ if ( ! stristr( $plugin_file, '/' ) ) {
+ $plugin_slug = $plugin_file;
+ } else { // Set the slug for plugin inside a folder.
+ $plugin_slug = explode( '/', $plugin_file );
+ $plugin_slug = $plugin_slug[0];
+ }
+
+ if ( in_array( $plugin_slug, $this->allowed_plugins, true ) ) {
+ $actions['troubleshoot-disable'] = sprintf(
+ '%s',
+ esc_url(
+ add_query_arg(
+ array(
+ 'health-check-troubleshoot-disable-plugin' => $plugin_slug,
+ ),
+ admin_url( 'plugins.php' )
+ )
+ ),
+ esc_html__( 'Disable while troubleshooting', 'health-check' )
+ );
+ } else {
+ $actions['troubleshoot-disable'] = sprintf(
+ '%s',
+ esc_url(
+ add_query_arg(
+ array(
+ 'health-check-troubleshoot-enable-plugin' => $plugin_slug,
+ ),
+ admin_url( 'plugins.php' )
+ )
+ ),
+ esc_html__( 'Enable while troubleshooting', 'health-check' )
+ );
+ }
+
+ return $actions;
+ }
+
+ /**
+ * Get the actual list of active plugins.
+ *
+ * When in Troubleshooting Mode we override the list of plugins,
+ * this function lets us grab the active plugins list without
+ * any interference.
+ *
+ * @return array Array of active plugins.
+ */
+ public function get_unfiltered_plugin_list() {
+ $this->override_active = false;
+ $all_plugins = get_option( 'active_plugins' );
+ $this->override_active = true;
+
+ return $all_plugins;
+ }
+
+ /**
+ * Check if the user is currently in Troubleshooting Mode or not.
+ *
+ * @return bool
+ */
+ public function is_troubleshooting() {
+ // Check if a session cookie to disable plugins has been set.
+ if ( isset( $_COOKIE['wp-health-check-disable-plugins'] ) ) {
+ $_GET['health-check-disable-plugin-hash'] = $_COOKIE['wp-health-check-disable-plugins'] . md5( $_SERVER['REMOTE_ADDR'] );
+ }
+
+ // If the disable hash isn't set, no need to interact with things.
+ if ( ! isset( $_GET['health-check-disable-plugin-hash'] ) ) {
+ return false;
+ }
+
+ if ( empty( $this->disable_hash ) ) {
+ return false;
+ }
+
+ // If the plugin hash is not valid, we also break out
+ if ( $this->disable_hash !== $_GET['health-check-disable-plugin-hash'] ) {
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Filter the plugins that are activated in WordPress.
+ *
+ * @param array $plugins An array of plugins marked as active.
+ *
+ * @return array
+ */
+ function health_check_loopback_test_disable_plugins( $plugins ) {
+ if ( ! $this->is_troubleshooting() || ! $this->override_active ) {
+ return $plugins;
+ }
+
+ // If we've received a comma-separated list of allowed plugins, we'll add them to the array of allowed plugins.
+ if ( isset( $_GET['health-check-allowed-plugins'] ) ) {
+ $this->allowed_plugins = explode( ',', $_GET['health-check-allowed-plugins'] );
+ }
+
+ foreach ( $plugins as $plugin_no => $plugin_path ) {
+ // Split up the plugin path, [0] is the slug and [1] holds the primary plugin file.
+ $plugin_parts = explode( '/', $plugin_path );
+
+ // We may want to allow individual, or groups of plugins, so introduce a skip-mechanic for those scenarios.
+ if ( in_array( $plugin_parts[0], $this->allowed_plugins, true ) ) {
+ continue;
+ }
+
+ // Remove the reference to this plugin.
+ unset( $plugins[ $plugin_no ] );
+ }
+
+ // Return a possibly modified list of activated plugins.
+ return $plugins;
+ }
+
+ /**
+ * Check if a default theme exists.
+ *
+ * If a default theme exists, return the most recent one, if not return `false`.
+ *
+ * @return bool|string
+ */
+ function has_default_theme() {
+ foreach ( $this->default_themes as $default_theme ) {
+ if ( $this->theme_exists( $default_theme ) ) {
+ return $default_theme;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Check if a theme exists by looking for the slug.
+ *
+ * @param string $theme_slug
+ *
+ * @return bool
+ */
+ function theme_exists( $theme_slug ) {
+ return is_dir( WP_CONTENT_DIR . '/themes/' . $theme_slug );
+ }
+
+ /**
+ * Check if theme overrides are active.
+ *
+ * @return bool
+ */
+ function override_theme() {
+ if ( ! $this->is_troubleshooting() ) {
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Override the default theme.
+ *
+ * Attempt to set one of the default themes, or a theme of the users choosing, as the active one
+ * during Troubleshooting Mode.
+ *
+ * @param $default
+ *
+ * @return bool|string
+ */
+ function health_check_troubleshoot_theme_stylesheet( $default ) {
+ if ( $this->self_fetching_theme ) {
+ return $default;
+ }
+
+ if ( ! $this->override_theme() ) {
+ return $default;
+ }
+
+ if ( empty( $this->current_theme_details ) ) {
+ $this->self_fetching_theme = true;
+ $this->current_theme_details = wp_get_theme( $this->current_theme );
+ $this->self_fetching_theme = false;
+ }
+
+ // If no theme has been chosen, start off by troubleshooting as a default theme if one exists.
+ $default_theme = $this->has_default_theme();
+ if ( false === $this->current_theme ) {
+ if ( $default_theme ) {
+ return $default_theme;
+ }
+ }
+
+ return $this->current_theme;
+ }
+
+ /**
+ * Override the default parent theme.
+ *
+ * If this is a child theme, override the parent and provide our users chosen themes parent instead.
+ *
+ * @param $default
+ *
+ * @return bool|string
+ */
+ function health_check_troubleshoot_theme_template( $default ) {
+ if ( $this->self_fetching_theme ) {
+ return $default;
+ }
+
+ if ( ! $this->override_theme() ) {
+ return $default;
+ }
+
+ if ( empty( $this->current_theme_details ) ) {
+ $this->self_fetching_theme = true;
+ $this->current_theme_details = wp_get_theme( $this->current_theme );
+ $this->self_fetching_theme = false;
+ }
+
+ // If no theme has been chosen, start off by troubleshooting as a default theme if one exists.
+ $default_theme = $this->has_default_theme();
+ if ( false === $this->current_theme ) {
+ if ( $default_theme ) {
+ return $default_theme;
+ }
+ }
+
+ if ( $this->current_theme_details->parent() ) {
+ return $this->current_theme_details->get_template();
+ }
+
+ return $this->current_theme;
+ }
+
+ /**
+ * Disable Troubleshooting Mode on logout.
+ *
+ * If logged in, disable the Troubleshooting Mode when the logout
+ * event is fired, this ensures we start with a clean slate on
+ * the next login.
+ *
+ * @return void
+ */
+ function health_check_troubleshooter_mode_logout() {
+ if ( ! $this->is_troubleshooting() ) {
+ return;
+ }
+
+ if ( isset( $_COOKIE['wp-health-check-disable-plugins'] ) ) {
+ $this->disable_troubleshooting_mode();
+ }
+ }
+
+ function disable_troubleshooting_mode() {
+ unset( $_COOKIE['wp-health-check-disable-plugins'] );
+ setcookie( 'wp-health-check-disable-plugins', null, 0, COOKIEPATH, COOKIE_DOMAIN );
+ delete_option( 'health-check-allowed-plugins' );
+ delete_option( 'health-check-default-theme' );
+ delete_option( 'health-check-current-theme' );
+
+ delete_option( 'health-check-backup-plugin-list' );
+ }
+
+ /**
+ * Catch query arguments.
+ *
+ * When in Troubleshooting Mode, look for various GET variables that trigger
+ * various plugin actions.
+ *
+ * @return void
+ */
+ function health_check_troubleshoot_get_captures() {
+ if ( ! $this->is_troubleshooting() ) {
+ return;
+ }
+
+ // Disable Troubleshooting Mode.
+ if ( isset( $_GET['health-check-disable-troubleshooting'] ) ) {
+ $this->disable_troubleshooting_mode();
+
+ wp_redirect( remove_query_arg( $this->available_query_args ) );
+ die();
+ }
+
+ // Dismiss notices.
+ if ( isset( $_GET['health-check-dismiss-notices'] ) && $this->is_troubleshooting() && is_admin() ) {
+ update_option( 'health-check-dashboard-notices', array() );
+
+ wp_redirect( admin_url() );
+ die();
+ }
+
+ // Enable an individual plugin.
+ if ( isset( $_GET['health-check-troubleshoot-enable-plugin'] ) ) {
+ $old_allowed_plugins = $this->allowed_plugins;
+
+ $this->allowed_plugins[ $_GET['health-check-troubleshoot-enable-plugin'] ] = $_GET['health-check-troubleshoot-enable-plugin'];
+
+ update_option( 'health-check-allowed-plugins', $this->allowed_plugins );
+
+ if ( ! $this->test_site_state() ) {
+ $this->allowed_plugins = $old_allowed_plugins;
+ update_option( 'health-check-allowed-plugins', $old_allowed_plugins );
+
+ $this->add_dashboard_notice(
+ sprintf(
+ // translators: %s: The plugin slug that was enabled.
+ __( 'When enabling the plugin, %s, a site failure occurred. Because of this the change was automatically reverted.', 'health-check' ),
+ $_GET['health-check-troubleshoot-enable-plugin']
+ ),
+ 'warning'
+ );
+ }
+
+ wp_redirect( remove_query_arg( $this->available_query_args ) );
+ die();
+ }
+
+ // Disable an individual plugin.
+ if ( isset( $_GET['health-check-troubleshoot-disable-plugin'] ) ) {
+ $old_allowed_plugins = $this->allowed_plugins;
+
+ unset( $this->allowed_plugins[ $_GET['health-check-troubleshoot-disable-plugin'] ] );
+
+ update_option( 'health-check-allowed-plugins', $this->allowed_plugins );
+
+ if ( ! $this->test_site_state() ) {
+ $this->allowed_plugins = $old_allowed_plugins;
+ update_option( 'health-check-allowed-plugins', $old_allowed_plugins );
+
+ $this->add_dashboard_notice(
+ sprintf(
+ // translators: %s: The plugin slug that was disabled.
+ __( 'When disabling the plugin, %s, a site failure occurred. Because of this the change was automatically reverted.', 'health-check' ),
+ $_GET['health-check-troubleshoot-disable-plugin']
+ ),
+ 'warning'
+ );
+ }
+
+ wp_redirect( remove_query_arg( $this->available_query_args ) );
+ die();
+ }
+
+ // Change the active theme for this session.
+ if ( isset( $_GET['health-check-change-active-theme'] ) ) {
+ $old_theme = get_option( 'health-check-current-theme' );
+
+ update_option( 'health-check-current-theme', $_GET['health-check-change-active-theme'] );
+
+ if ( ! $this->test_site_state() ) {
+ update_option( 'health-check-current-theme', $old_theme );
+
+ $this->add_dashboard_notice(
+ sprintf(
+ // translators: %s: The theme slug that was switched to.
+ __( 'When switching the active theme to %s, a site failure occurred. Because of this we reverted the theme to the one you used previously.', 'health-check' ),
+ $_GET['health-check-change-active-theme']
+ ),
+ 'warning'
+ );
+ }
+
+ wp_redirect( remove_query_arg( $this->available_query_args ) );
+ die();
+ }
+ }
+
+ private function add_dashboard_notice( $message, $severity = 'notice' ) {
+ $notices = get_option( 'health-check-dashboard-notices', array() );
+
+ $notices[] = array(
+ 'severity' => $severity,
+ 'message' => $message,
+ 'time' => gmdate( 'Y-m-d H:i' ),
+ );
+
+ update_option( 'health-check-dashboard-notices', $notices );
+ }
+
+ /**
+ * Extend the admin bar.
+ *
+ * When in Troubleshooting Mode, introduce a new element to the admin bar to show
+ * enabled and disabled plugins (if conditions are met), switch between themes
+ * and disable Troubleshooting Mode altogether.
+ *
+ * @param WP_Admin_Bar $wp_menu
+ *
+ * @return void
+ */
+ function health_check_troubleshoot_menu_bar( $wp_menu ) {
+ if ( ! $this->is_troubleshooting() ) {
+ return;
+ }
+
+ // We need some admin functions to make this a better user experience, so include that file.
+ if ( ! is_admin() ) {
+ require_once( trailingslashit( ABSPATH ) . 'wp-admin/includes/plugin.php' );
+ }
+
+ // Make sure the updater tools are available since WordPress 5.5.0 auto-updates were introduced.
+ if ( ! function_exists( 'wp_is_auto_update_enabled_for_type' ) ) {
+ require_once( trailingslashit( ABSPATH ) . 'wp-admin/includes/update.php' );
+ }
+
+ // Ensure the theme functions are available to us on every page.
+ include_once( trailingslashit( ABSPATH ) . 'wp-admin/includes/theme.php' );
+
+ // Add top-level menu item.
+ $wp_menu->add_menu(
+ array(
+ 'id' => 'health-check',
+ 'title' => esc_html__( 'Troubleshooting Mode', 'health-check' ),
+ 'href' => admin_url( '/' ),
+ )
+ );
+
+ // Add a link to manage plugins if there are more than 20 set to be active.
+ if ( count( $this->active_plugins ) > 20 ) {
+ $wp_menu->add_node(
+ array(
+ 'id' => 'health-check-plugins',
+ 'title' => esc_html__( 'Manage active plugins', 'health-check' ),
+ 'parent' => 'health-check',
+ 'href' => admin_url( 'plugins.php' ),
+ )
+ );
+ } else {
+ $wp_menu->add_node(
+ array(
+ 'id' => 'health-check-plugins',
+ 'title' => esc_html__( 'Plugins', 'health-check' ),
+ 'parent' => 'health-check',
+ 'href' => admin_url( 'plugins.php' ),
+ )
+ );
+
+ $wp_menu->add_group(
+ array(
+ 'id' => 'health-check-plugins-enabled',
+ 'parent' => 'health-check-plugins',
+ )
+ );
+ $wp_menu->add_group(
+ array(
+ 'id' => 'health-check-plugins-disabled',
+ 'parent' => 'health-check-plugins',
+ )
+ );
+
+ foreach ( $this->active_plugins as $single_plugin ) {
+ $plugin_slug = explode( '/', $single_plugin );
+ $plugin_slug = $plugin_slug[0];
+
+ $plugin_data = get_plugin_data( trailingslashit( WP_PLUGIN_DIR ) . $single_plugin );
+
+ $enabled = true;
+
+ if ( in_array( $plugin_slug, $this->allowed_plugins, true ) ) {
+ $label = sprintf(
+ // Translators: %s: Plugin slug.
+ esc_html__( 'Disable %s', 'health-check' ),
+ sprintf(
+ '%s',
+ $plugin_data['Name']
+ )
+ );
+ $url = add_query_arg(
+ array(
+ 'health-check-troubleshoot-disable-plugin' => $plugin_slug,
+ )
+ );
+ } else {
+ $enabled = false;
+ $label = sprintf(
+ // Translators: %s: Plugin slug.
+ esc_html__( 'Enable %s', 'health-check' ),
+ sprintf(
+ '%s',
+ $plugin_data['Name']
+ )
+ );
+ $url = add_query_arg(
+ array(
+ 'health-check-troubleshoot-enable-plugin' => $plugin_slug,
+ )
+ );
+ }
+
+ $wp_menu->add_node(
+ array(
+ 'id' => sprintf(
+ 'health-check-plugin-%s',
+ $plugin_slug
+ ),
+ 'title' => $label,
+ 'parent' => ( $enabled ? 'health-check-plugins-enabled' : 'health-check-plugins-disabled' ),
+ 'href' => $url,
+ )
+ );
+ }
+ }
+
+ $wp_menu->add_node(
+ array(
+ 'id' => 'health-check-theme',
+ 'title' => esc_html__( 'Themes', 'health-check' ),
+ 'parent' => 'health-check',
+ 'href' => admin_url( 'themes.php' ),
+ )
+ );
+
+ $themes = wp_prepare_themes_for_js();
+
+ foreach ( $themes as $theme ) {
+ $node = array(
+ 'id' => sprintf(
+ 'health-check-theme-%s',
+ sanitize_title( $theme['id'] )
+ ),
+ 'title' => sprintf(
+ '%s %s',
+ ( $theme['active'] ? esc_html_x( 'Active:', 'Prefix for the active theme in troubleshooting mode', 'health-check' ) : esc_html_x( 'Switch to', 'Prefix for inactive themes in troubleshooting mode', 'health-check' ) ),
+ $theme['name']
+ ),
+ 'parent' => 'health-check-theme',
+ );
+
+ if ( ! $theme['active'] ) {
+ $node['href'] = add_query_arg(
+ array(
+ 'health-check-change-active-theme' => $theme['id'],
+ )
+ );
+ }
+
+ $wp_menu->add_node( $node );
+ }
+
+ // Add a link to disable Troubleshooting Mode.
+ $wp_menu->add_node(
+ array(
+ 'id' => 'health-check-disable',
+ 'title' => esc_html__( 'Disable Troubleshooting Mode', 'health-check' ),
+ 'parent' => 'health-check',
+ 'href' => add_query_arg(
+ array(
+ 'health-check-disable-troubleshooting' => true,
+ )
+ ),
+ )
+ );
+ }
+
+ public function test_site_state() {
+
+ // Make sure the Health_Check_Loopback class is available to us, in case the primary plugin is disabled.
+ if ( ! method_exists( 'Health_Check_Loopback', 'can_perform_loopback' ) ) {
+ $plugin_file = trailingslashit( WP_PLUGIN_DIR ) . 'health-check/includes/class-health-check-loopback.php';
+
+ // Make sure the file exists, in case someone deleted the plugin manually, we don't want any errors.
+ if ( ! file_exists( $plugin_file ) ) {
+
+ // If the plugin files are inaccessible, we can't guarantee for the state of the site, so the default is a bad response.
+ return false;
+ }
+
+ require_once( $plugin_file );
+ }
+
+ $loopback_state = Health_Check_Loopback::can_perform_loopback();
+
+ if ( 'good' !== $loopback_state->status ) {
+ return false;
+ }
+
+ return true;
+ }
+
+ public function dashboard_widget_scripts() {
+ if ( ! $this->is_troubleshooting() ) {
+ return;
+ }
+
+ // Check that it's the dashboard page, we don't want to disturb any other pages.
+ $screen = get_current_screen();
+ if ( 'dashboard' !== $screen->id && 'plugins' !== $screen->id ) {
+ return;
+ }
+ }
+
+ public function display_dashboard_widget() {
+ if ( ! $this->is_troubleshooting() ) {
+ return;
+ }
+
+ // Check that it's the dashboard page, we don't want to disturb any other pages.
+ $screen = get_current_screen();
+ if ( 'dashboard' !== $screen->id && 'plugins' !== $screen->id ) {
+ return;
+ }
+
+ $notices = get_option( 'health-check-dashboard-notices', array() );
+
+ $active_plugins = array();
+ $inactive_plugins = array();
+
+ $themes = wp_prepare_themes_for_js();
+ ?>
+
+
',
+ esc_url(
+ add_query_arg(
+ array(
+ 'health-check-dismiss-notices' => true,
+ )
+ )
+ ),
+ esc_html__( 'Dismiss notices', 'health-check' )
+ );
+ }
+ ?>
+
+
+
+
+
+