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Editing: themes.php
<?php /** * Multisite themes administration panel. * * @package WordPress * @subpackage Multisite * @since 3.1.0 */ /** Load WordPress Administration Bootstrap */ require_once __DIR__ . '/admin.php'; if ( ! current_user_can( 'manage_network_themes' ) ) { wp_die( __( 'Sorry, you are not allowed to manage network themes.' ) ); } $wp_list_table = _get_list_table( 'WP_MS_Themes_List_Table' ); $pagenum = $wp_list_table->get_pagenum(); $action = $wp_list_table->current_action(); $s = $_REQUEST['s'] ?? ''; // Clean up request URI from temporary args for screen options/paging uri's to work as expected. $temp_args = array( 'enabled', 'disabled', 'deleted', 'error', 'enabled-auto-update', 'disabled-auto-update', ); $_SERVER['REQUEST_URI'] = remove_query_arg( $temp_args, $_SERVER['REQUEST_URI'] ); $referer = remove_query_arg( $temp_args, wp_get_referer() ); if ( $action ) { switch ( $action ) { case 'enable': check_admin_referer( 'enable-theme_' . $_GET['theme'] ); WP_Theme::network_enable_theme( $_GET['theme'] ); if ( ! str_contains( $referer, '/network/themes.php' ) ) { wp_redirect( network_admin_url( 'themes.php?enabled=1' ) ); } else { wp_safe_redirect( add_query_arg( 'enabled', 1, $referer ) ); } exit; case 'disable': check_admin_referer( 'disable-theme_' . $_GET['theme'] ); WP_Theme::network_disable_theme( $_GET['theme'] ); wp_safe_redirect( add_query_arg( 'disabled', '1', $referer ) ); exit; case 'enable-selected': check_admin_referer( 'bulk-themes' ); $themes = isset( $_POST['checked'] ) ? (array) $_POST['checked'] : array(); if ( empty( $themes ) ) { wp_safe_redirect( add_query_arg( 'error', 'none', $referer ) ); exit; } WP_Theme::network_enable_theme( (array) $themes ); wp_safe_redirect( add_query_arg( 'enabled', count( $themes ), $referer ) ); exit; case 'disable-selected': check_admin_referer( 'bulk-themes' ); $themes = isset( $_POST['checked'] ) ? (array) $_POST['checked'] : array(); if ( empty( $themes ) ) { wp_safe_redirect( add_query_arg( 'error', 'none', $referer ) ); exit; } WP_Theme::network_disable_theme( (array) $themes ); wp_safe_redirect( add_query_arg( 'disabled', count( $themes ), $referer ) ); exit; case 'update-selected': check_admin_referer( 'bulk-themes' ); if ( isset( $_GET['themes'] ) ) { $themes = explode( ',', $_GET['themes'] ); } elseif ( isset( $_POST['checked'] ) ) { $themes = (array) $_POST['checked']; } else { $themes = array(); } // Used in the HTML title tag. $title = __( 'Update Themes' ); $parent_file = 'themes.php'; require_once ABSPATH . 'wp-admin/admin-header.php'; echo '<div class="wrap">'; echo '<h1>' . esc_html( $title ) . '</h1>'; $url = self_admin_url( 'update.php?action=update-selected-themes&themes=' . urlencode( implode( ',', $themes ) ) ); $url = wp_nonce_url( $url, 'bulk-update-themes' ); echo "<iframe src='$url' style='width: 100%; height:100%; min-height:850px;'></iframe>"; echo '</div>'; require_once ABSPATH . 'wp-admin/admin-footer.php'; exit; case 'delete-selected': if ( ! current_user_can( 'delete_themes' ) ) { wp_die( __( 'Sorry, you are not allowed to delete themes for this site.' ) ); } check_admin_referer( 'bulk-themes' ); $themes = isset( $_REQUEST['checked'] ) ? (array) $_REQUEST['checked'] : array(); if ( empty( $themes ) ) { wp_safe_redirect( add_query_arg( 'error', 'none', $referer ) ); exit; } $themes = array_diff( $themes, array( get_option( 'stylesheet' ), get_option( 'template' ) ) ); if ( empty( $themes ) ) { wp_safe_redirect( add_query_arg( 'error', 'main', $referer ) ); exit; } $theme_info = array(); foreach ( $themes as $key => $theme ) { $theme_info[ $theme ] = wp_get_theme( $theme ); } require ABSPATH . 'wp-admin/update.php'; $parent_file = 'themes.php'; if ( ! isset( $_REQUEST['verify-delete'] ) ) { wp_enqueue_script( 'jquery' ); require_once ABSPATH . 'wp-admin/admin-header.php'; $themes_to_delete = count( $themes ); ?> <div class="wrap"> <?php if ( 1 === $themes_to_delete ) : ?> <h1><?php _e( 'Delete Theme' ); ?></h1> <?php wp_admin_notice( '<strong>' . __( 'Caution:' ) . '</strong> ' . __( 'This theme may be active on other sites in the network.' ), array( 'additional_classes' => array( 'error' ), ) ); ?> <p><?php _e( 'You are about to remove the following theme:' ); ?></p> <?php else : ?> <h1><?php _e( 'Delete Themes' ); ?></h1> <?php wp_admin_notice( '<strong>' . __( 'Caution:' ) . '</strong> ' . __( 'These themes may be active on other sites in the network.' ), array( 'additional_classes' => array( 'error' ), ) ); ?> <p><?php _e( 'You are about to remove the following themes:' ); ?></p> <?php endif; ?> <ul class="ul-disc"> <?php foreach ( $theme_info as $theme ) { echo '<li>' . sprintf( /* translators: 1: Theme name, 2: Theme author. */ _x( '%1$s by %2$s', 'theme' ), '<strong>' . $theme->display( 'Name' ) . '</strong>', '<em>' . $theme->display( 'Author' ) . '</em>' ) . '</li>'; } ?> </ul> <?php if ( 1 === $themes_to_delete ) : ?> <p><?php _e( 'Are you sure you want to delete this theme?' ); ?></p> <?php else : ?> <p><?php _e( 'Are you sure you want to delete these themes?' ); ?></p> <?php endif; ?> <form method="post" action="<?php echo esc_url( $_SERVER['REQUEST_URI'] ); ?>" style="display:inline;"> <input type="hidden" name="verify-delete" value="1" /> <input type="hidden" name="action" value="delete-selected" /> <?php foreach ( (array) $themes as $theme ) { echo '<input type="hidden" name="checked[]" value="' . esc_attr( $theme ) . '" />'; } wp_nonce_field( 'bulk-themes' ); if ( 1 === $themes_to_delete ) { submit_button( __( 'Yes, delete this theme' ), '', 'submit', false ); } else { submit_button( __( 'Yes, delete these themes' ), '', 'submit', false ); } ?> </form> <?php $referer = wp_get_referer(); ?> <form method="post" action="<?php echo $referer ? esc_url( $referer ) : ''; ?>" style="display:inline;"> <?php submit_button( __( 'No, return me to the theme list' ), '', 'submit', false ); ?> </form> </div> <?php require_once ABSPATH . 'wp-admin/admin-footer.php'; exit; } // End if verify-delete. foreach ( $themes as $theme ) { $delete_result = delete_theme( $theme, esc_url( add_query_arg( array( 'verify-delete' => 1, 'action' => 'delete-selected', 'checked' => $_REQUEST['checked'], '_wpnonce' => $_REQUEST['_wpnonce'], ), network_admin_url( 'themes.php' ) ) ) ); } $paged = ( $_REQUEST['paged'] ) ? $_REQUEST['paged'] : 1; wp_redirect( add_query_arg( array( 'deleted' => count( $themes ), 'paged' => $paged, 's' => $s, ), network_admin_url( 'themes.php' ) ) ); exit; case 'enable-auto-update': case 'disable-auto-update': case 'enable-auto-update-selected': case 'disable-auto-update-selected': if ( ! ( current_user_can( 'update_themes' ) && wp_is_auto_update_enabled_for_type( 'theme' ) ) ) { wp_die( __( 'Sorry, you are not allowed to change themes automatic update settings.' ) ); } if ( 'enable-auto-update' === $action || 'disable-auto-update' === $action ) { check_admin_referer( 'updates' ); } else { if ( empty( $_POST['checked'] ) ) { // Nothing to do. wp_safe_redirect( add_query_arg( 'error', 'none', $referer ) ); exit; } check_admin_referer( 'bulk-themes' ); } $auto_updates = (array) get_site_option( 'auto_update_themes', array() ); if ( 'enable-auto-update' === $action ) { $auto_updates[] = $_GET['theme']; $auto_updates = array_unique( $auto_updates ); $referer = add_query_arg( 'enabled-auto-update', 1, $referer ); } elseif ( 'disable-auto-update' === $action ) { $auto_updates = array_diff( $auto_updates, array( $_GET['theme'] ) ); $referer = add_query_arg( 'disabled-auto-update', 1, $referer ); } else { // Bulk enable/disable. $themes = (array) wp_unslash( $_POST['checked'] ); if ( 'enable-auto-update-selected' === $action ) { $auto_updates = array_merge( $auto_updates, $themes ); $auto_updates = array_unique( $auto_updates ); $referer = add_query_arg( 'enabled-auto-update', count( $themes ), $referer ); } else { $auto_updates = array_diff( $auto_updates, $themes ); $referer = add_query_arg( 'disabled-auto-update', count( $themes ), $referer ); } } $all_items = wp_get_themes(); // Remove themes that don't exist or have been deleted since the option was last updated. $auto_updates = array_intersect( $auto_updates, array_keys( $all_items ) ); update_site_option( 'auto_update_themes', $auto_updates ); wp_safe_redirect( $referer ); exit; default: $themes = isset( $_POST['checked'] ) ? (array) $_POST['checked'] : array(); if ( empty( $themes ) ) { wp_safe_redirect( add_query_arg( 'error', 'none', $referer ) ); exit; } check_admin_referer( 'bulk-themes' ); /** This action is documented in wp-admin/network/site-themes.php */ $referer = apply_filters( 'handle_network_bulk_actions-' . get_current_screen()->id, $referer, $action, $themes, 0 ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores wp_safe_redirect( $referer ); exit; } } $wp_list_table->prepare_items(); add_thickbox(); add_screen_option( 'per_page' ); get_current_screen()->add_help_tab( array( 'id' => 'overview', 'title' => __( 'Overview' ), 'content' => '<p>' . __( 'This screen enables and disables the inclusion of themes available to choose in the Appearance menu for each site. It does not activate or deactivate which theme a site is currently using.' ) . '</p>' . '<p>' . __( 'If the network admin disables a theme that is in use, it can still remain selected on that site. If another theme is chosen, the disabled theme will not appear in the site’s Appearance > Themes screen.' ) . '</p>' . '<p>' . __( 'Themes can be enabled on a site by site basis by the network admin on the Edit Site screen (which has a Themes tab); get there via the Edit action link on the All Sites screen. Only network admins are able to install or edit themes.' ) . '</p>', ) ); $help_sidebar_autoupdates = ''; if ( current_user_can( 'update_themes' ) && wp_is_auto_update_enabled_for_type( 'theme' ) ) { get_current_screen()->add_help_tab( array( 'id' => 'plugins-themes-auto-updates', 'title' => __( 'Auto-updates' ), 'content' => '<p>' . __( 'Auto-updates can be enabled or disabled for each individual theme. Themes with auto-updates enabled will display the estimated date of the next auto-update. Auto-updates depends on the WP-Cron task scheduling system.' ) . '</p>' . '<p>' . __( 'Please note: Third-party themes and plugins, or custom code, may override WordPress scheduling.' ) . '</p>', ) ); $help_sidebar_autoupdates = '<p>' . __( '<a href="https://wordpress.org/documentation/article/plugins-themes-auto-updates/">Documentation on Auto-updates</a>' ) . '</p>'; } get_current_screen()->set_help_sidebar( '<p><strong>' . __( 'For more information:' ) . '</strong></p>' . '<p>' . __( '<a href="https://codex.wordpress.org/Network_Admin_Themes_Screen">Documentation on Network Themes</a>' ) . '</p>' . $help_sidebar_autoupdates . '<p>' . __( '<a href="https://wordpress.org/support/forums/">Support forums</a>' ) . '</p>' ); get_current_screen()->set_screen_reader_content( array( 'heading_views' => __( 'Filter themes list' ), 'heading_pagination' => __( 'Themes list navigation' ), 'heading_list' => __( 'Themes list' ), ) ); // Used in the HTML title tag. $title = __( 'Themes' ); $parent_file = 'themes.php'; wp_enqueue_script( 'updates' ); wp_enqueue_script( 'theme-preview' ); require_once ABSPATH . 'wp-admin/admin-header.php'; ?> <div class="wrap"> <h1 class="wp-heading-inline"><?php echo esc_html( $title ); ?></h1> <?php if ( current_user_can( 'install_themes' ) ) : ?> <a href="theme-install.php" class="page-title-action"><?php echo esc_html__( 'Add Theme' ); ?></a> <?php endif; ?> <?php if ( isset( $_REQUEST['s'] ) && strlen( $_REQUEST['s'] ) ) { echo '<span class="subtitle">'; printf( /* translators: %s: Search query. */ __( 'Search results for: %s' ), '<strong>' . esc_html( $s ) . '</strong>' ); echo '</span>'; } ?> <hr class="wp-header-end"> <?php $message = ''; $type = 'success'; if ( isset( $_GET['enabled'] ) ) { $enabled = absint( $_GET['enabled'] ); if ( 1 === $enabled ) { $message = __( 'Theme enabled.' ); } else { $message = sprintf( /* translators: %s: Number of themes. */ _n( '%s theme enabled.', '%s themes enabled.', $enabled ), number_format_i18n( $enabled ) ); } } elseif ( isset( $_GET['disabled'] ) ) { $disabled = absint( $_GET['disabled'] ); if ( 1 === $disabled ) { $message = __( 'Theme disabled.' ); } else { $message = sprintf( /* translators: %s: Number of themes. */ _n( '%s theme disabled.', '%s themes disabled.', $disabled ), number_format_i18n( $disabled ) ); } } elseif ( isset( $_GET['deleted'] ) ) { $deleted = absint( $_GET['deleted'] ); if ( 1 === $deleted ) { $message = __( 'Theme deleted.' ); } else { $message = sprintf( /* translators: %s: Number of themes. */ _n( '%s theme deleted.', '%s themes deleted.', $deleted ), number_format_i18n( $deleted ) ); } } elseif ( isset( $_GET['enabled-auto-update'] ) ) { $enabled = absint( $_GET['enabled-auto-update'] ); if ( 1 === $enabled ) { $message = __( 'Theme will be auto-updated.' ); } else { $message = sprintf( /* translators: %s: Number of themes. */ _n( '%s theme will be auto-updated.', '%s themes will be auto-updated.', $enabled ), number_format_i18n( $enabled ) ); } } elseif ( isset( $_GET['disabled-auto-update'] ) ) { $disabled = absint( $_GET['disabled-auto-update'] ); if ( 1 === $disabled ) { $message = __( 'Theme will no longer be auto-updated.' ); } else { $message = sprintf( /* translators: %s: Number of themes. */ _n( '%s theme will no longer be auto-updated.', '%s themes will no longer be auto-updated.', $disabled ), number_format_i18n( $disabled ) ); } } elseif ( isset( $_GET['error'] ) && 'none' === $_GET['error'] ) { $message = __( 'No theme selected.' ); $type = 'error'; } elseif ( isset( $_GET['error'] ) && 'main' === $_GET['error'] ) { $message = __( 'You cannot delete a theme while it is active on the main site.' ); $type = 'error'; } if ( '' !== $message ) { wp_admin_notice( $message, array( 'type' => $type, 'dismissible' => true, 'id' => 'message', ) ); } ?> <form method="get"> <?php $wp_list_table->search_box( __( 'Search installed themes' ), 'theme' ); ?> </form> <?php $wp_list_table->views(); if ( 'broken' === $status ) { echo '<p class="clear">' . __( 'The following themes are installed but incomplete.' ) . '</p>'; } ?> <form id="bulk-action-form" method="post"> <input type="hidden" name="theme_status" value="<?php echo esc_attr( $status ); ?>" /> <input type="hidden" name="paged" value="<?php echo esc_attr( $page ); ?>" /> <?php $wp_list_table->display(); ?> </form> </div> <?php wp_print_request_filesystem_credentials_modal(); wp_print_admin_notice_templates(); wp_print_update_row_templates(); require_once ABSPATH . 'wp-admin/admin-footer.php';
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