laipower/wp-content/plugins/gp-premium/sites/sites.php

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2020-04-07 13:03:04 +00:00
<?php
defined( 'WPINC' ) or die;
define( 'GENERATE_SITES_PATH', plugin_dir_path( __FILE__ ) );
define( 'GENERATE_SITES_URL', plugin_dir_url( __FILE__ ) );
require_once GENERATE_SITES_PATH . 'classes/class-site.php';
require_once GENERATE_SITES_PATH . 'classes/class-site-helper.php';
require_once GENERATE_SITES_PATH . 'classes/class-site-widget-importer.php';
require_once GENERATE_SITES_PATH . 'classes/class-site-restore.php';
/**
* Checks to see if we're in the Site dashboard.
*
* @since 1.6
*
* @return bool
*/
function generate_is_sites_dashboard() {
$screen = get_current_screen();
if ( ! is_object( $screen ) ) {
return false;
}
if ( 'appearance_page_generatepress-site-library' === $screen->id ) {
return true;
}
return false;
}
add_filter( 'generate_dashboard_tabs', 'generate_sites_dashboard_tab' );
/**
* Add the Sites tab to our Dashboard tabs.
*
* @since 1.6
*
* @param array $tabs Existing tabs.
* @return array New tabs.
*/
function generate_sites_dashboard_tab( $tabs ) {
$tabs['Sites'] = array(
'name' => __( 'Site Library', 'gp-premium' ),
'url' => admin_url( 'themes.php?page=generatepress-site-library' ),
'class' => generate_is_sites_dashboard() ? 'active' : '',
);
return $tabs;
}
add_action( 'admin_menu', 'generate_site_library_register' );
/**
* Register our Site Library page.
*
* @since 1.7
*/
function generate_site_library_register() {
add_submenu_page(
'themes.php',
__( 'Site Library', 'gp-premium' ),
__( 'Site Library', 'gp-premium' ),
'manage_options',
'generatepress-site-library',
'generate_sites_container'
);
}
add_action( 'admin_head', 'generate_site_library_fix_menu' );
/**
* Set our current menu item as the GeneratePress Dashboard.
*
* @since 1.7
*/
function generate_site_library_fix_menu() {
global $parent_file, $submenu_file, $post_type;
if ( generate_is_sites_dashboard() ) {
$parent_file = 'themes.php';
$submenu_file = 'generate-options';
}
remove_submenu_page( 'themes.php', 'generatepress-site-library' );
}
add_action( 'admin_enqueue_scripts', 'generate_sites_do_enqueue_scripts' );
/**
* Add our scripts for the site library.
*
* @since 1.8
*/
function generate_sites_do_enqueue_scripts() {
if ( ! generate_is_sites_dashboard() ) {
return;
}
$backup_data = get_option( '_generatepress_site_library_backup', array() );
wp_enqueue_script(
'generate-sites-admin',
GENERATE_SITES_URL . 'assets/js/admin.js',
array( 'jquery', 'wp-util', 'updates', 'generate-sites-blazy' ),
GP_PREMIUM_VERSION,
true
);
wp_enqueue_script(
'generate-sites-download',
GENERATE_SITES_URL . 'assets/js/download.js',
array( 'jquery', 'generate-sites-admin' ),
GP_PREMIUM_VERSION,
true
);
wp_enqueue_script(
'generate-sites-blazy',
GENERATE_SITES_URL . 'assets/js/blazy.min.js',
array(),
GP_PREMIUM_VERSION,
true
);
wp_localize_script(
'generate-sites-admin',
'generate_sites_params',
array(
'ajaxurl' => admin_url( 'admin-ajax.php' ),
'nonce' => wp_create_nonce( 'generate_sites_nonce' ),
'importing_options' => __( 'Importing options', 'gp-premium' ),
'backing_up_options' => __( 'Backing up options', 'gp-premium' ),
'checking_demo_content' => __( 'Checking demo content', 'gp-premium' ),
'downloading_content' => __( 'Downloading content', 'gp-premium' ),
'importing_content' => __( 'Importing content', 'gp-premium' ),
'importing_site_options' => __( 'Importing site options', 'gp-premium' ),
'importing_widgets' => __( 'Importing widgets', 'gp-premium' ),
'activating_plugins' => __( 'Activating plugins', 'gp-premium' ),
'installing_plugins' => __( 'Installing plugins', 'gp-premium' ),
'automatic_plugins' => __( 'Automatic', 'gp-premium' ),
'manual_plugins' => __( 'Manual', 'gp-premium' ),
'home_url' => home_url(),
'restoreThemeOptions' => __( 'Restoring theme options', 'gp-premium' ),
'restoreSiteOptions' => __( 'Restoring site options', 'gp-premium' ),
'restoreContent' => __( 'Removing imported content', 'gp-premium' ),
'restorePlugins' => __( 'Deactivating imported plugins', 'gp-premium' ),
'restoreWidgets' => __( 'Restoring widgets', 'gp-premium' ),
'restoreCSS' => __( 'Restoring CSS', 'gp-premium' ),
'cleanUp' => __( 'Cleaning up', 'gp-premium' ),
'hasContentBackup' => ! empty( $backup_data['content'] ),
'confirmRemoval' => __( 'This process makes changes to your database. If you have existing data, be sure to create a backup as a precaution.', 'gp-premium' ),
)
);
wp_enqueue_style(
'generate-sites-admin',
GENERATE_SITES_URL . 'assets/css/admin.css',
array(),
GP_PREMIUM_VERSION
);
wp_enqueue_style(
'generate-premium-dashboard',
plugin_dir_url( dirname(__FILE__) ) . 'inc/assets/dashboard.css',
array(),
GP_PREMIUM_VERSION
);
}
add_filter( 'admin_body_class', 'generate_sites_do_admin_body_classes' );
/**
* Add a body class while in the Site Library.
*
* @since 1.8
*
* @param array Current body classes.
* @return array Existing and our new body classes
*/
function generate_sites_do_admin_body_classes( $classes ) {
if ( generate_is_sites_dashboard() ) {
$classes .= ' generate-sites';
}
return $classes;
}
add_action( 'generate_inside_site_library_container', 'generate_sites_add_tabs_wrapper_open', 4 );
/**
* Add an opening wrapper element for our Dashboard tabs and page builder links.
*
* @since 1.8
*/
function generate_sites_add_tabs_wrapper_open() {
echo '<div class="site-library-tabs-wrapper">';
}
/**
* Adds our Site dashboard container.
*
* @since 1.6
*/
function generate_sites_container() {
?>
<div class="generate-site-library">
<div class="site-library-header">
<div class="site-library-container">
<div class="library-title">
<?php _e( 'GeneratePress Site Library', 'gp-premium' ); ?>
</div>
<div class="library-links">
<a href="https://generatepress.com/support" target="_blank"><?php _e( 'Support', 'gp-premium' ); ?></a>
<a href="https://docs.generatepress.com" target="_blank"><?php _e( 'Documentation', 'gp-premium' ); ?></a>
</div>
</div>
</div>
<div class="site-library-container">
<?php
do_action( 'generate_inside_site_library_container' );
$site_data = get_transient( 'generatepress_sites' );
$page_builders = array();
foreach ( (array) $site_data as $data ) {
if ( isset( $data['page_builder'][0] ) ) {
$page_builder = $data['page_builder'][0];
$page_builder_id = str_replace( ' ', '-', strtolower( $page_builder ) );
if ( 'no-page-builder' !== $page_builder_id ) {
$page_builders[ $page_builder_id ] = $page_builder;
}
}
}
echo '<div class="library-filters">';
if ( ! empty( $page_builders ) ) : ?>
<div class="page-builder-filter">
<label for="page-builder" class="page-builder-label"><?php _e( 'Page Builder:', 'gp-premium' ); ?></label>
<div class="filter-select">
<select id="page-builder" class="page-builder-group" data-filter-group="page-builder" data-page-builder=".no-page-builder">
<option value="no-page-builder"><?php _e( 'None', 'gp-premium' ); ?></option>
<?php
foreach( $page_builders as $id => $name ) {
printf(
'<option value="%1$s">%2$s</option>',
$id,
$name
);
}
?>
</select>
</div>
</div>
<?php else : ?>
<div class="page-builder-filter">
<label for="page-builder" class="page-builder-label"><?php _e( 'Page Builder:', 'gp-premium' ); ?></label>
<div class="filter-select">
<select id="page-builder" class="page-builder-group" data-filter-group="page-builder" data-page-builder=".no-page-builder">
<option value="no-page-builder"><?php _e( 'None', 'gp-premium' ); ?></option>
<option value="beaver-builder"><?php _e( 'Beaver Builder', 'gp-premium' ); ?></option>
<option value="elementor"><?php _e( 'Elementor', 'gp-premium' ); ?></option>
</select>
</div>
</div>
<?php endif; ?>
</div>
</div> <!-- .site-library-tabs-wrapper -->
<?php // The opening wrapper for this is in generate_sites_add_tabs_wrapper_open() ?>
<?php
$backup_data = get_option( '_generatepress_site_library_backup', array() );
$show_remove_site = false;
if ( ! empty( $backup_data ) ) {
$show_remove_site = true;
}
?>
<div class="remove-site" style="<?php echo ! $show_remove_site ? 'display: none' : ''; ?>">
<h2><?php _e( 'Existing Site Import Detected', 'gp-premium' ); ?></h2>
<div class="remove-site-content">
<p><?php _e( 'It is highly recommended that you remove the last site you imported before importing a new one.', 'gp-premium' ); ?></p>
<p><?php _e( 'This process restores your previous options, widgets and active plugins. It will also remove your imported content and CSS.', 'gp-premium' ); ?></p>
</div>
<div class="remove-site-actions">
<button class="do-remove-site button-primary"><?php _e( 'Remove Imported Site', 'gp-premium' ); ?></button>
<a class="skip-remove-site" href="#"><?php _e( 'Skip', 'gp-premium' ); ?></a>
<div class="loading" style="display: none;">
<span class="remove-site-message"></span>
<?php GeneratePress_Sites_Helper::loading_icon(); ?>
</div>
</div>
</div>
<div class="generatepress-sites generatepress-admin-block <?php echo $show_remove_site ? 'remove-site-needed' : ''; ?>" id="sites" data-page-builder=".no-page-builder">
<?php do_action( 'generate_inside_sites_container' ); ?>
</div>
<?php
printf(
'<div class="refresh-sites">
<a class="button" href="%1$s">%2$s</a>
</div>',
wp_nonce_url( admin_url( 'themes.php?page=generatepress-site-library' ), 'refresh_sites', 'refresh_sites_nonce' ),
__( 'Refresh Sites', 'gp-premium' )
);
?>
</div>
</div>
<?php
}
add_action( 'admin_init', 'generate_sites_refresh_list', 2 );
/**
* Delete our sites transient if the Refresh sites link is clicked.
*
* @since 1.6
*/
function generate_sites_refresh_list() {
if ( ! isset( $_GET['refresh_sites_nonce'] ) || ! wp_verify_nonce( $_GET['refresh_sites_nonce'], 'refresh_sites' ) ) {
return;
}
delete_transient( 'generatepress_sites' );
}
/**
* Get our page header meta slugs.
*
* @since 1.6
*
* @return array
*/
function generate_sites_export_page_headers() {
$args = array(
'post_type' => get_post_types( array( 'public' => true ) ),
'showposts' => -1,
'meta_query' => array(
array(
'key' => '_generate-select-page-header',
'compare' => 'EXISTS',
)
)
);
$posts = get_posts( $args );
$new_values = array();
foreach ( $posts as $post ) {
$page_header_id = get_post_meta( $post->ID, '_generate-select-page-header', true );
if ( $page_header_id ) {
$new_values[$post->ID] = $page_header_id;
}
}
return $new_values;
}
/**
* Get our Element display locations.
*
* @since 1.7
*
* @return array
*/
function generate_sites_export_elements_location() {
$args = array(
'post_type' => 'gp_elements',
'showposts' => -1,
);
$posts = get_posts( $args );
$new_values = array();
foreach ( $posts as $post ) {
$display_conditions = get_post_meta( $post->ID, '_generate_element_display_conditions', true );
if ( $display_conditions ) {
$new_values[$post->ID] = $display_conditions;
}
}
return $new_values;
}
/**
* Get our Element display locations.
*
* @since 1.7
*
* @return array
*/
function generate_sites_export_elements_exclusion() {
$args = array(
'post_type' => 'gp_elements',
'showposts' => -1,
);
$posts = get_posts( $args );
$new_values = array();
foreach ( $posts as $post ) {
$display_conditions = get_post_meta( $post->ID, '_generate_element_exclude_conditions', true );
if ( $display_conditions ) {
$new_values[$post->ID] = $display_conditions;
}
}
return $new_values;
}
/**
* List out compatible theme modules Sites can activate.
*
* @since 1.6
*
* @return array
*/
function generatepress_get_site_premium_modules() {
return array(
'Backgrounds' => 'generate_package_backgrounds',
'Blog' => 'generate_package_blog',
'Colors' => 'generate_package_colors',
'Copyright' => 'generate_package_copyright',
'Elements' => 'generate_package_elements',
'Disable Elements' => 'generate_package_disable_elements',
'Hooks' => 'generate_package_hooks',
'Menu Plus' => 'generate_package_menu_plus',
'Page Header' => 'generate_package_page_header',
'Secondary Nav' => 'generate_package_secondary_nav',
'Sections' => 'generate_package_sections',
'Spacing' => 'generate_package_spacing',
'Typography' => 'generate_package_typography',
'WooCommerce' => 'generate_package_woocommerce',
);
}
/**
* Don't allow Sites to modify these options.
*
* @since 1.6
*
* @return array
*/
function generatepress_sites_disallowed_options() {
return array(
'admin_email',
'siteurl',
'home',
'blog_charset',
'blog_public',
'current_theme',
'stylesheet',
'template',
'default_role',
'mailserver_login',
'mailserver_pass',
'mailserver_port',
'mailserver_url',
'permalink_structure',
'rewrite_rules',
'users_can_register',
);
}
add_action( 'generate_export_items', 'generatepress_sites_add_export_checkbox' );
/**
* Add our GeneratePress Site export checkbox to the Export module.
*
* @since 1.7
*/
function generatepress_sites_add_export_checkbox() {
?>
<hr style="margin:10px 0;border-bottom:0;" />
<label>
<input type="checkbox" name="module_group[]" value="generatepress-site" />
<?php _ex( 'GeneratePress Site', 'Module name', 'gp-premium' ); ?>
</label>
<?php
}
add_filter( 'generate_export_data', 'generatepress_sites_do_site_options_export', 10, 2 );
/**
* Add to our export .json file.
*
* @since 1.6
*
* @param array $data The current data being exported.
* @return array Existing and extended data.
*/
function generatepress_sites_do_site_options_export( $data ) {
// Bail if we haven't chosen to export the Site.
if ( ! in_array( 'generatepress-site', $_POST['module_group'] ) ) {
return $data;
}
// Modules
$modules = generatepress_get_site_premium_modules();
$data['modules'] = array();
foreach ( $modules as $name => $key ) {
if ( 'activated' == get_option( $key ) ) {
$data['modules'][ $name ] = $key;
}
}
// Site options
$data['site_options']['nav_menu_locations'] = get_theme_mod( 'nav_menu_locations' );
$data['site_options']['custom_logo'] = wp_get_attachment_url( get_theme_mod( 'custom_logo' ) );
$data['site_options']['show_on_front'] = get_option( 'show_on_front' );
$data['site_options']['page_on_front'] = get_option( 'page_on_front' );
$data['site_options']['page_for_posts'] = get_option( 'page_for_posts' );
// Page header
$data['site_options']['page_header_global_locations'] = get_option( 'generate_page_header_global_locations' );
$data['site_options']['page_headers'] = generate_sites_export_page_headers();
// Elements
$data['site_options']['element_locations'] = generate_sites_export_elements_location();
$data['site_options']['element_exclusions'] = generate_sites_export_elements_exclusion();
// Custom CSS.
if ( function_exists( 'wp_get_custom_css_post' ) ) {
$data['custom_css'] = wp_get_custom_css_post()->post_content;
}
// WooCommerce.
if ( is_plugin_active( 'woocommerce/woocommerce.php' ) ) {
$data['site_options']['woocommerce_shop_page_id'] = get_option( 'woocommerce_shop_page_id' );
$data['site_options']['woocommerce_cart_page_id'] = get_option( 'woocommerce_cart_page_id' );
$data['site_options']['woocommerce_checkout_page_id'] = get_option( 'woocommerce_checkout_page_id' );
$data['site_options']['woocommerce_myaccount_page_id'] = get_option( 'woocommerce_myaccount_page_id' );
$data['site_options']['woocommerce_single_image_width'] = get_option( 'woocommerce_single_image_width' );
$data['site_options']['woocommerce_thumbnail_image_width'] = get_option( 'woocommerce_thumbnail_image_width' );
$data['site_options']['woocommerce_thumbnail_cropping'] = get_option( 'woocommerce_thumbnail_cropping' );
$data['site_options']['woocommerce_shop_page_display'] = get_option( 'woocommerce_shop_page_display' );
$data['site_options']['woocommerce_category_archive_display'] = get_option( 'woocommerce_category_archive_display' );
$data['site_options']['woocommerce_default_catalog_orderby'] = get_option( 'woocommerce_default_catalog_orderby' );
}
// Elementor
if ( is_plugin_active( 'elementor/elementor.php' ) ) {
$data['site_options']['elementor_container_width'] = get_option( 'elementor_container_width' );
$data['site_options']['elementor_cpt_support'] = get_option( 'elementor_cpt_support' );
$data['site_options']['elementor_css_print_method'] = get_option( 'elementor_css_print_method' );
$data['site_options']['elementor_default_generic_fonts'] = get_option( 'elementor_default_generic_fonts' );
$data['site_options']['elementor_disable_color_schemes'] = get_option( 'elementor_disable_color_schemes' );
$data['site_options']['elementor_disable_typography_schemes'] = get_option( 'elementor_disable_typography_schemes' );
$data['site_options']['elementor_editor_break_lines'] = get_option( 'elementor_editor_break_lines' );
$data['site_options']['elementor_exclude_user_roles'] = get_option( 'elementor_exclude_user_roles' );
$data['site_options']['elementor_global_image_lightbox'] = get_option( 'elementor_global_image_lightbox' );
$data['site_options']['elementor_page_title_selector'] = get_option( 'elementor_page_title_selector' );
$data['site_options']['elementor_scheme_color'] = get_option( 'elementor_scheme_color' );
$data['site_options']['elementor_scheme_color-picker'] = get_option( 'elementor_scheme_color-picker' );
$data['site_options']['elementor_scheme_typography'] = get_option( 'elementor_scheme_typography' );
$data['site_options']['elementor_space_between_widgets'] = get_option( 'elementor_space_between_widgets' );
$data['site_options']['elementor_stretched_section_container'] = get_option( 'elementor_stretched_section_container' );
}
// Beaver Builder
if ( is_plugin_active( 'beaver-builder-lite-version/fl-builder.php' ) || is_plugin_active( 'bb-plugin/fl-builder.php' ) ) {
$data['site_options']['_fl_builder_enabled_icons'] = get_option( '_fl_builder_enabled_icons' );
$data['site_options']['_fl_builder_enabled_modules'] = get_option( '_fl_builder_enabled_modules' );
$data['site_options']['_fl_builder_post_types'] = get_option( '_fl_builder_post_types' );
$data['site_options']['_fl_builder_color_presets'] = get_option( '_fl_builder_color_presets' );
$data['site_options']['_fl_builder_services'] = get_option( '_fl_builder_services' );
$data['site_options']['_fl_builder_settings'] = get_option( '_fl_builder_settings' );
$data['site_options']['_fl_builder_user_access'] = get_option( '_fl_builder_user_access' );
$data['site_options']['_fl_builder_enabled_templates'] = get_option( '_fl_builder_enabled_templates' );
}
// Menu Icons
if ( is_plugin_active( 'menu-icons/menu-icons.php' ) ) {
$data['site_options']['menu-icons'] = get_option( 'menu-icons' );
}
// Ninja Forms
if ( is_plugin_active( 'ninja-forms/ninja-forms.php' ) ) {
$data['site_options']['ninja_forms_settings'] = get_option( 'ninja_forms_settings' );
}
// Social Warfare
if ( is_plugin_active( 'social-warfare/social-warfare.php' ) ) {
$data['site_options']['socialWarfareOptions'] = get_option( 'socialWarfareOptions' );
}
// Elements Plus
if ( is_plugin_active( 'elements-plus/elements-plus.php' ) ) {
$data['site_options']['elements_plus_settings'] = get_option( 'elements_plus_settings' );
}
// Ank Google Map
if ( is_plugin_active( 'ank-google-map/ank-google-map.php' ) ) {
$data['site_options']['ank_google_map'] = get_option( 'ank_google_map' );
}
// GP Social Share
if ( is_plugin_active( 'gp-social-share-svg/gp-social-share.php' ) ) {
$data['site_options']['gp_social_settings'] = get_option( 'gp_social_settings' );
}
// Active plugins
$active_plugins = get_option( 'active_plugins' );
$all_plugins = get_plugins();
$ignore = apply_filters( 'generate_sites_ignore_plugins', array(
'gp-premium/gp-premium.php',
'widget-importer-exporter/widget-importer-exporter.php'
) );
foreach ( $ignore as $plugin ) {
unset( $all_plugins[ $plugin ] );
}
$activated_plugins = array();
foreach ( $active_plugins as $p ) {
if ( isset( $all_plugins[$p] ) ) {
$activated_plugins[$all_plugins[$p]['Name']] = $p;
}
}
$data['plugins'] = $activated_plugins;
return $data;
}
add_action( 'current_screen', 'generatepress_sites_init', 5 );
/**
* Fetch our sites and trusted authors. Stores them in their own transients.
* We use current_screen instead of admin_init so we can check what admin page we're on.
*
* @since 1.6
*/
function generatepress_sites_init() {
$screen = get_current_screen();
if ( 'appearance_page_generate-options' === $screen->id || 'appearance_page_generatepress-site-library' === $screen->id ) {
$remote_sites = get_transient( 'generatepress_sites' );
$trusted_authors = get_transient( 'generatepress_sites_trusted_providers' );
if ( empty( $remote_sites ) ) {
$sites = array();
$data = wp_safe_remote_get( 'https://gpsites.co/wp-json/wp/v2/sites?per_page=100' );
if ( is_wp_error( $data ) ) {
set_transient( 'generatepress_sites', 'no results', 5 * MINUTE_IN_SECONDS );
return;
}
$data = json_decode( wp_remote_retrieve_body( $data ), true );
if ( ! is_array( $data ) ) {
set_transient( 'generatepress_sites', 'no results', 5 * MINUTE_IN_SECONDS );
return;
}
foreach( ( array ) $data as $site ) {
$sites[$site['name']] = array(
'name' => $site['name'],
'directory' => $site['directory'],
'preview_url' => $site['preview_url'],
'author_name' => $site['author_name'],
'author_url' => $site['author_url'],
'description' => $site['description'],
'page_builder' => $site['page_builder'],
'min_version' => $site['min_version'],
'uploads_url' => $site['uploads_url'],
'plugins' => $site['plugins'],
'documentation' => $site['documentation'],
);
}
$sites = apply_filters( 'generate_add_sites', $sites );
set_transient( 'generatepress_sites', $sites, 24 * HOUR_IN_SECONDS );
}
if ( empty( $trusted_authors ) ) {
$trusted_authors = wp_safe_remote_get( 'https://gpsites.co/wp-json/sites/site' );
if ( is_wp_error( $trusted_authors ) || empty( $trusted_authors ) ) {
set_transient( 'generatepress_sites_trusted_providers', 'no results', 5 * MINUTE_IN_SECONDS );
return;
}
$trusted_authors = json_decode( wp_remote_retrieve_body( $trusted_authors ), true );
$authors = array();
foreach ( ( array ) $trusted_authors['trusted_author'] as $author ) {
$authors[] = $author;
}
set_transient( 'generatepress_sites_trusted_providers', $authors, 24 * HOUR_IN_SECONDS );
}
}
}
add_action( 'plugins_loaded', 'generatepress_sites_output' );
/**
* Initiate our Sites once everything has loaded.
* We use current_screen instead of admin_init so we can check what admin page we're on.
*
* @since 1.6
*/
function generatepress_sites_output() {
if ( ! class_exists( 'GeneratePress_Site' ) ) {
return; // Bail if we don't have the needed class.
}
$sites = get_transient( 'generatepress_sites' );
if ( empty( $sites ) || ! is_array( $sites ) ) {
add_action( 'generate_inside_sites_container', 'generatepress_sites_no_results_error' );
return;
}
if ( apply_filters( 'generate_sites_randomize', true ) ) {
shuffle( $sites );
}
foreach( $sites as $site ) {
new GeneratePress_Site( $site );
}
}
/**
* Show an error message when no sites exist.
*
* @since 1.8.2
*/
function generatepress_sites_no_results_error() {
printf(
'<div class="no-site-library-results">
%1$s <a href="%3$s" target="_blank" rel="noopener noreferrer">%2$s</a>
</div>',
__( 'No sites found.', 'gp-premium' ),
__( 'Why?', 'gp-premium' ),
'https://docs.generatepress.com/article/site-library-unavailable/'
);
}