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<?php |
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/** |
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* Jetpack Heartbeat package. |
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* |
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* @package automattic/jetpack-heartbeat |
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*/ |
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namespace Automattic\Jetpack; |
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use Automattic\Jetpack\Connection\Manager; |
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use Automattic\Jetpack\A8c_Mc_Stats; |
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/** |
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* Heartbeat sends a batch of stats to wp.com once a day |
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*/ |
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class 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 Heartbeat |
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*/ |
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private static $instance = false; |
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/** |
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* Cronjob identifier |
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* |
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* @var string |
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*/ |
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private $cron_name = 'jetpack_v2_heartbeat'; |
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/** |
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* Singleton |
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* |
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* @since 2.3.3 |
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* @static |
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* @return Heartbeat |
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*/ |
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public static function init() { |
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if ( ! self::$instance ) { |
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self::$instance = new Heartbeat(); |
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} |
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return self::$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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* @return Heartbeat |
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*/ |
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View Code Duplication |
private function __construct() { |
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// Schedule the task. |
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add_action( $this->cron_name, array( $this, 'cron_exec' ) ); |
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if ( ! wp_next_scheduled( $this->cron_name ) ) { |
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// Deal with the old pre-3.0 weekly one. |
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$timestamp = wp_next_scheduled( 'jetpack_heartbeat' ); |
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if ( $timestamp ) { |
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wp_unschedule_event( $timestamp, 'jetpack_heartbeat' ); |
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} |
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wp_schedule_event( time(), 'daily', $this->cron_name ); |
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} |
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add_filter( 'jetpack_xmlrpc_methods', array( __CLASS__, 'jetpack_xmlrpc_methods' ) ); |
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} |
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/** |
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* Method that gets executed on the wp-cron call |
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* |
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* @since 2.3.3 |
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* @global string $wp_version |
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*/ |
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View Code Duplication |
public function cron_exec() { |
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$a8c_mc_stats = new A8c_Mc_Stats(); |
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/* |
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* This should run daily. Figuring in for variances in |
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* WP_CRON, don't let it run more than every 23 hours at most. |
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* |
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* i.e. if it ran less than 23 hours ago, fail out. |
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*/ |
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$last = (int) \Jetpack_Options::get_option( 'last_heartbeat' ); |
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if ( $last && ( $last + DAY_IN_SECONDS - HOUR_IN_SECONDS > time() ) ) { |
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return; |
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} |
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/* |
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* Check for an identity crisis |
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* |
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* If one exists: |
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* - Bump stat for ID crisis |
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* - Email site admin about potential ID crisis |
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*/ |
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// Coming Soon! |
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foreach ( self::generate_stats_array( 'v2-' ) as $key => $value ) { |
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$a8c_mc_stats->add( $key, $value ); |
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} |
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\Jetpack_Options::update_option( 'last_heartbeat', time() ); |
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$a8c_mc_stats->do_server_side_stats(); |
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/** |
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* Fires when we synchronize all registered options on heartbeat. |
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* |
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* @since 3.3.0 |
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*/ |
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do_action( 'jetpack_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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/** |
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* This filter is used to build the array of stats that are bumped once a day by Jetpack Heartbeat. |
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* |
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* Filter the array and add key => value pairs where |
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* * key is the stat group name |
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* * value is the stat name. |
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* |
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* Example: |
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* add_filter( 'jetpack_heartbeat_stats_array', function( $stats ) { |
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* $stats['is-https'] = is_ssl() ? 'https' : 'http'; |
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* }); |
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* |
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* This will bump the stats for the 'is-https/https' or 'is-https/http' stat. |
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* |
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* @param array $stats The stats to be filtered. |
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* @param string $prefix The prefix that will automatically be added at the begining at each stat group name. |
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*/ |
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$stats = apply_filters( 'jetpack_heartbeat_stats_array', array(), $prefix ); |
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$return = array(); |
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// Apply prefix to stats. |
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foreach ( $stats as $stat => $value ) { |
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$return[ "$prefix$stat" ] = $value; |
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} |
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return $return; |
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} |
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/** |
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* Registers jetpack.getHeartbeatData xmlrpc method |
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* |
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* @param array $methods The list of methods to be filtered. |
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* @return array $methods |
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*/ |
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public static function jetpack_xmlrpc_methods( $methods ) { |
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$methods['jetpack.getHeartbeatData'] = array( __CLASS__, 'xmlrpc_data_response' ); |
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return $methods; |
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} |
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/** |
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* Handles the response for the jetpack.getHeartbeatData xmlrpc method |
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* |
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* @param array $params The parameters received in the request. |
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* @return array $params all the stats that hearbeat handles. |
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*/ |
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public static function xmlrpc_data_response( $params = array() ) { |
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// The WordPress XML-RPC server sets a default param of array() |
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// if no argument is passed on the request and the method handlers get this array in $params. |
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// generate_stats_array() needs a string as first argument. |
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$params = empty( $params ) ? '' : $params; |
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return self::generate_stats_array( $params ); |
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} |
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/** |
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* Clear scheduled events |
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* |
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* @return void |
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*/ |
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View Code Duplication |
public function deactivate() { |
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// Deal with the old pre-3.0 weekly one. |
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$timestamp = wp_next_scheduled( 'jetpack_heartbeat' ); |
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if ( $timestamp ) { |
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wp_unschedule_event( $timestamp, 'jetpack_heartbeat' ); |
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} |
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$timestamp = wp_next_scheduled( $this->cron_name ); |
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wp_unschedule_event( $timestamp, $this->cron_name ); |
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} |
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} |
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Adding a
@return
annotation to a constructor is not recommended, since a constructor does not have a meaningful return value.Please refer to the PHP core documentation on constructors.