<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName

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/**

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* Jetpack Heartbeat.

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*

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* @package automattic/jetpack

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*/

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use Automattic\Jetpack\Connection\Manager;

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use Automattic\Jetpack\Heartbeat;

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/**

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* Jetpack Heartbeat.

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*/

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class Jetpack_Heartbeat {

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/**

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* Holds the singleton instance of this class

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*

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* @since 2.3.3

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* @var Jetpack_Heartbeat

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*/

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private static $instance = false;

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/**

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* Holds the singleton instance of the proxied class

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*

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* @since 8.9.0

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* @var Automattic\Jetpack\Heartbeat

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*/

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private static $proxied_instance = false;

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/**

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* Singleton

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*

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* @since 2.3.3

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* @static

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* @return Jetpack_Heartbeat

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*/

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public static function init() {

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if ( ! self::$instance ) {

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self::$instance = new Jetpack_Heartbeat();

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self::$proxied_instance = Heartbeat::init();

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}

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return self::$instance;

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}

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/**

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* Constructor for singleton

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*

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* @since 2.3.3

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*/

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private function __construct() {

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add_filter( 'jetpack_heartbeat_stats_array', array( $this, 'add_stats_to_heartbeat' ) );

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}

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/**

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* Generates heartbeat stats data.

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*

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* @param string $prefix Prefix to add before stats identifier.

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*

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* @return array The stats array.

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*/

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public static function generate_stats_array( $prefix = '' ) {

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$return = array();

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$return[ "{$prefix}version" ] = JETPACK__VERSION;

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$return[ "{$prefix}wp-version" ] = get_bloginfo( 'version' );

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$return[ "{$prefix}php-version" ] = PHP_VERSION;

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$return[ "{$prefix}branch" ] = (float) JETPACK__VERSION;

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$return[ "{$prefix}wp-branch" ] = (float) get_bloginfo( 'version' );

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$return[ "{$prefix}php-branch" ] = (float) PHP_VERSION;

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$return[ "{$prefix}public" ] = Jetpack_Options::get_option( 'public' );

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$return[ "{$prefix}ssl" ] = Jetpack::permit_ssl();

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$return[ "{$prefix}is-https" ] = is_ssl() ? 'https' : 'http';

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$return[ "{$prefix}language" ] = get_bloginfo( 'language' );

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$return[ "{$prefix}charset" ] = get_bloginfo( 'charset' );

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$return[ "{$prefix}is-multisite" ] = is_multisite() ? 'multisite' : 'singlesite';

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$return[ "{$prefix}identitycrisis" ] = Jetpack::check_identity_crisis() ? 'yes' : 'no';

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$return[ "{$prefix}plugins" ] = implode( ',', Jetpack::get_active_plugins() );

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if ( function_exists( 'get_mu_plugins' ) ) {

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$return[ "{$prefix}mu-plugins" ] = implode( ',', array_keys( get_mu_plugins() ) );

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}

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$return[ "{$prefix}manage-enabled" ] = true;

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if ( function_exists( 'get_space_used' ) ) { // Only available in multisite.

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$space_used = get_space_used();

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} else {

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// This is the same as `get_space_used`, except it does not apply the short-circuit filter.

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$upload_dir = wp_upload_dir();

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$space_used = get_dirsize( $upload_dir['basedir'] ) / MB_IN_BYTES;

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}

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$return[ "{$prefix}space-used" ] = $space_used;

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$xmlrpc_errors = Jetpack_Options::get_option( 'xmlrpc_errors', array() );

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if ( $xmlrpc_errors ) {

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$return[ "{$prefix}xmlrpc-errors" ] = implode( ',', array_keys( $xmlrpc_errors ) );

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Jetpack_Options::delete_option( 'xmlrpc_errors' );

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}

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// Missing the connection owner?

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$connection_manager = new Manager();

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$return[ "{$prefix}missing-owner" ] = $connection_manager->is_missing_connection_owner();

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// is-multi-network can have three values, `single-site`, `single-network`, and `multi-network`.

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$return[ "{$prefix}is-multi-network" ] = 'single-site';

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if ( is_multisite() ) {

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$return[ "{$prefix}is-multi-network" ] = Jetpack::is_multi_network() ? 'multi-network' : 'single-network';

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}

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if ( ! empty( $_SERVER['SERVER_ADDR'] ) || ! empty( $_SERVER['LOCAL_ADDR'] ) ) {

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$ip = ! empty( $_SERVER['SERVER_ADDR'] ) ? wp_unslash( $_SERVER['SERVER_ADDR'] ) : wp_unslash( $_SERVER['LOCAL_ADDR'] ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Sanitized just below.

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$ip_arr = array_map( 'intval', explode( '.', $ip ) );

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if ( 4 === count( $ip_arr ) ) {

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$return[ "{$prefix}ip-2-octets" ] = implode( '.', array_slice( $ip_arr, 0, 2 ) );

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}

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}

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foreach ( Jetpack::get_available_modules() as $slug ) {

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$return[ "{$prefix}module-{$slug}" ] = Jetpack::is_module_active( $slug ) ? 'on' : 'off';

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}

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return $return;

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}

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/**

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* Add Jetpack Stats array to Heartbeat if Jetpack is connected

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*

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* @since 8.9.0

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*

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* @param array $stats Jetpack Heartbeat stats.

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* @return array $stats

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*/

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public function add_stats_to_heartbeat( $stats ) {

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if ( ! Jetpack::is_connection_ready() ) {

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return $stats;

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}

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$jetpack_stats = self::generate_stats_array();

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return array_merge( $stats, $jetpack_stats );

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}

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}

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