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<?php
/**
* WPSEO plugin file.
*
* @package WPSEO\Internals
*/
/**
* Multisite utility class for network admin functionality.
*/
class Yoast_Network_Admin implements WPSEO_WordPress_Integration, WPSEO_WordPress_AJAX_Integration {
/**
* Action identifier for updating plugin network options.
*
* @var string
*/
const UPDATE_OPTIONS_ACTION = 'yoast_handle_network_options';
/**
* Action identifier for restoring a site.
*
* @var string
*/
const RESTORE_SITE_ACTION = 'yoast_restore_site';
/**
* Gets the available sites as choices, e.g. for a dropdown.
*
* @param bool $include_empty Optional. Whether to include an initial placeholder choice.
* Default false.
* @param bool $show_title Optional. Whether to show the title for each site. This requires
* switching through the sites, so has performance implications for
* sites that do not use a persistent cache.
* Default false.
*
* @return array Choices as $site_id => $site_label pairs.
*/
public function get_site_choices( $include_empty = false, $show_title = false ) {
$choices = array();
if ( $include_empty ) {
$choices['-'] = __( 'None', 'wordpress-seo' );
}
$criteria = array(
'deleted' => 0,
'network_id' => get_current_network_id(),
);
$sites = get_sites( $criteria );
foreach ( $sites as $site ) {
$site_name = $site->domain . $site->path;
if ( $show_title ) {
$site_name = $site->blogname . ' (' . $site->domain . $site->path . ')';
}
$choices[ $site->blog_id ] = $site->blog_id . ': ' . $site_name;
$site_states = $this->get_site_states( $site );
if ( ! empty( $site_states ) ) {
$choices[ $site->blog_id ] .= ' [' . implode( ', ', $site_states ) . ']';
}
}
return $choices;
}
/**
* Gets the states of a site.
*
* @param WP_Site $site Site object.
*
* @return array Array of $state_slug => $state_label pairs.
*/
public function get_site_states( $site ) {
$available_states = array(
'public' => __( 'public', 'wordpress-seo' ),
'archived' => __( 'archived', 'wordpress-seo' ),
'mature' => __( 'mature', 'wordpress-seo' ),
'spam' => __( 'spam', 'wordpress-seo' ),
'deleted' => __( 'deleted', 'wordpress-seo' ),
);
$site_states = array();
foreach ( $available_states as $state_slug => $state_label ) {
if ( $site->$state_slug === '1' ) {
$site_states[ $state_slug ] = $state_label;
}
}
return $site_states;
}
/**
* Handles a request to update plugin network options.
*
* This method works similar to how option updates are handled in `wp-admin/options.php` and
* `wp-admin/network/settings.php`.
*
* @return void
*/
public function handle_update_options_request() {
$option_group = filter_input( INPUT_POST, 'network_option_group', FILTER_SANITIZE_STRING );
$this->verify_request( "{$option_group}-network-options" );
$whitelist_options = Yoast_Network_Settings_API::get()->get_whitelist_options( $option_group );
if ( empty( $whitelist_options ) ) {
add_settings_error( $option_group, 'settings_updated', __( 'You are not allowed to modify unregistered network settings.', 'wordpress-seo' ), 'error' );
$this->terminate_request();
return;
}
foreach ( $whitelist_options as $option_name ) {
$value = null;
if ( isset( $_POST[ $option_name ] ) ) { // WPCS: CSRF ok.
// Adding sanitize_text_field around this will break the saving of settings because it expects a string: https://github.com/Yoast/wordpress-seo/issues/12440.
$value = wp_unslash( $_POST[ $option_name ] ); // WPCS: CSRF ok.
}
WPSEO_Options::update_site_option( $option_name, $value );
}
$settings_errors = get_settings_errors();
if ( empty( $settings_errors ) ) {
add_settings_error( $option_group, 'settings_updated', __( 'Settings Updated.', 'wordpress-seo' ), 'updated' );
}
$this->terminate_request();
}
/**
* Handles a request to restore a site's default settings.
*
* @return void
*/
public function handle_restore_site_request() {
$this->verify_request( 'wpseo-network-restore', 'restore_site_nonce' );
$option_group = 'wpseo_ms';
$site_id = ! empty( $_POST[ $option_group ]['site_id'] ) ? (int) $_POST[ $option_group ]['site_id'] : 0; // WPCS: CSRF ok.
if ( ! $site_id ) {
add_settings_error( $option_group, 'settings_updated', __( 'No site has been selected to restore.', 'wordpress-seo' ), 'error' );
$this->terminate_request();
return;
}
$site = get_site( $site_id );
if ( ! $site ) {
/* translators: %s expands to the ID of a site within a multisite network. */
add_settings_error( $option_group, 'settings_updated', sprintf( __( 'Site with ID %d not found.', 'wordpress-seo' ), $site_id ), 'error' );
}
else {
WPSEO_Options::reset_ms_blog( $site_id );
/* translators: %s expands to the name of a site within a multisite network. */
add_settings_error( $option_group, 'settings_updated', sprintf( __( '%s restored to default SEO settings.', 'wordpress-seo' ), esc_html( $site->blogname ) ), 'updated' );
}
$this->terminate_request();
}
/**
* Outputs nonce, action and option group fields for a network settings page in the plugin.
*
* @param string $option_group Option group name for the current page.
*
* @return void
*/
public function settings_fields( $option_group ) {
?>
<input type="hidden" name="network_option_group" value="<?php echo esc_attr( $option_group ); ?>" />
<input type="hidden" name="action" value="<?php echo esc_attr( self::UPDATE_OPTIONS_ACTION ); ?>" />
<?php
wp_nonce_field( "$option_group-network-options" );
}
/**
* Enqueues network admin assets.
*
* @return void
*/
public function enqueue_assets() {
$asset_manager = new WPSEO_Admin_Asset_Manager();
$asset_manager->enqueue_script( 'network-admin-script' );
$translations = array(
/* translators: %s: success message */
'success_prefix' => __( 'Success: %s', 'wordpress-seo' ),
/* translators: %s: error message */
'error_prefix' => __( 'Error: %s', 'wordpress-seo' ),
);
wp_localize_script(
WPSEO_Admin_Asset_Manager::PREFIX . 'network-admin-script',
'wpseoNetworkAdminGlobalL10n',
$translations
);
}
/**
* Hooks in the necessary actions and filters.
*
* @return void
*/
public function register_hooks() {
if ( ! $this->meets_requirements() ) {
return;
}
add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_assets' ) );
add_action( 'admin_action_' . self::UPDATE_OPTIONS_ACTION, array( $this, 'handle_update_options_request' ) );
add_action( 'admin_action_' . self::RESTORE_SITE_ACTION, array( $this, 'handle_restore_site_request' ) );
}
/**
* Hooks in the necessary AJAX actions.
*
* @return void
*/
public function register_ajax_hooks() {
add_action( 'wp_ajax_' . self::UPDATE_OPTIONS_ACTION, array( $this, 'handle_update_options_request' ) );
add_action( 'wp_ajax_' . self::RESTORE_SITE_ACTION, array( $this, 'handle_restore_site_request' ) );
}
/**
* Checks whether the requirements to use this class are met.
*
* @return bool True if requirements are met, false otherwise.
*/
public function meets_requirements() {
return is_multisite() && is_network_admin();
}
/**
* Verifies that the current request is valid.
*
* @param string $action Nonce action.
* @param string $query_arg Optional. Nonce query argument. Default '_wpnonce'.
*
* @return void
*/
public function verify_request( $action, $query_arg = '_wpnonce' ) {
$has_access = current_user_can( 'wpseo_manage_network_options' );
if ( wp_doing_ajax() ) {
check_ajax_referer( $action, $query_arg );
if ( ! $has_access ) {
wp_die( -1, 403 );
}
return;
}
check_admin_referer( $action, $query_arg );
if ( ! $has_access ) {
wp_die( esc_html__( 'You are not allowed to perform this action.', 'wordpress-seo' ) );
}
}
/**
* Terminates the current request by either redirecting back or sending an AJAX response.
*
* @return void
*/
public function terminate_request() {
if ( wp_doing_ajax() ) {
$settings_errors = get_settings_errors();
if ( ! empty( $settings_errors ) && $settings_errors[0]['type'] === 'updated' ) {
wp_send_json_success( $settings_errors, 200 );
}
wp_send_json_error( $settings_errors, 400 );
}
$this->persist_settings_errors();
$this->redirect_back( array( 'settings-updated' => 'true' ) );
}
/**
* Persists settings errors.
*
* Settings errors are stored in a transient for 30 seconds so that this transient
* can be retrieved on the next page load.
*
* @return void
*/
protected function persist_settings_errors() {
/*
* A regular transient is used here, since it is automatically cleared right after the redirect.
* A network transient would be cleaner, but would require a lot of copied code from core for
* just a minor adjustment when displaying settings errors.
*/
set_transient( 'settings_errors', get_settings_errors(), 30 );
}
/**
* Redirects back to the referer URL, with optional query arguments.
*
* @param array $query_args Optional. Query arguments to add to the redirect URL. Default none.
*
* @return void
*/
protected function redirect_back( $query_args = array() ) {
$sendback = wp_get_referer();
if ( ! empty( $query_args ) ) {
$sendback = add_query_arg( $query_args, $sendback );
}
wp_safe_redirect( $sendback );
exit;
}
}
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