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| 1 | <?php |
| 2 | /** |
| 3 | * Jetpack Heartbeat package. |
| 4 | * |
| 5 | * @package automattic/jetpack-connection |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack; |
| 9 | |
| 10 | use Automattic\Jetpack\Connection\Rest_Authentication; |
| 11 | use Automattic\Jetpack\Connection\REST_Connector; |
| 12 | use Jetpack_Options; |
| 13 | use WP_CLI; |
| 14 | use WP_Error; |
| 15 | use WP_REST_Request; |
| 16 | use WP_REST_Server; |
| 17 | |
| 18 | /** |
| 19 | * Heartbeat sends a batch of stats to wp.com once a day |
| 20 | */ |
| 21 | class Heartbeat { |
| 22 | |
| 23 | /** |
| 24 | * Holds the singleton instance of this class |
| 25 | * |
| 26 | * @since 1.0.0 |
| 27 | * @since-jetpack 2.3.3 |
| 28 | * @var Heartbeat |
| 29 | */ |
| 30 | private static $instance = false; |
| 31 | |
| 32 | /** |
| 33 | * Cronjob identifier |
| 34 | * |
| 35 | * @var string |
| 36 | */ |
| 37 | private $cron_name = 'jetpack_v2_heartbeat'; |
| 38 | |
| 39 | /** |
| 40 | * Singleton |
| 41 | * |
| 42 | * @since 1.0.0 |
| 43 | * @since-jetpack 2.3.3 |
| 44 | * @static |
| 45 | * @return Heartbeat |
| 46 | */ |
| 47 | public static function init() { |
| 48 | if ( ! self::$instance ) { |
| 49 | self::$instance = new Heartbeat(); |
| 50 | } |
| 51 | |
| 52 | return self::$instance; |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * Constructor for singleton |
| 57 | * |
| 58 | * @since 1.0.0 |
| 59 | * @since-jetpack 2.3.3 |
| 60 | */ |
| 61 | private function __construct() { |
| 62 | |
| 63 | // Schedule the task. |
| 64 | add_action( $this->cron_name, array( $this, 'cron_exec' ) ); |
| 65 | |
| 66 | if ( ! wp_next_scheduled( $this->cron_name ) ) { |
| 67 | // Deal with the old pre-3.0 weekly one. |
| 68 | $timestamp = wp_next_scheduled( 'jetpack_heartbeat' ); |
| 69 | if ( $timestamp ) { |
| 70 | wp_unschedule_event( $timestamp, 'jetpack_heartbeat' ); |
| 71 | } |
| 72 | |
| 73 | wp_schedule_event( time(), 'daily', $this->cron_name ); |
| 74 | } |
| 75 | |
| 76 | add_filter( 'jetpack_xmlrpc_unauthenticated_methods', array( __CLASS__, 'jetpack_xmlrpc_methods' ) ); |
| 77 | |
| 78 | if ( defined( 'WP_CLI' ) && WP_CLI ) { |
| 79 | WP_CLI::add_command( 'jetpack-heartbeat', array( $this, 'cli_callback' ) ); |
| 80 | } |
| 81 | |
| 82 | add_action( 'rest_api_init', array( $this, 'initialize_rest_api' ) ); |
| 83 | } |
| 84 | |
| 85 | /** |
| 86 | * Method that gets executed on the wp-cron call |
| 87 | * |
| 88 | * @since 1.0.0 |
| 89 | * @since-jetpack 2.3.3 |
| 90 | * @global string $wp_version |
| 91 | */ |
| 92 | public function cron_exec() { |
| 93 | |
| 94 | $a8c_mc_stats = new A8c_Mc_Stats(); |
| 95 | |
| 96 | /* |
| 97 | * This should run daily. Figuring in for variances in |
| 98 | * WP_CRON, don't let it run more than every 23 hours at most. |
| 99 | * |
| 100 | * i.e. if it ran less than 23 hours ago, fail out. |
| 101 | */ |
| 102 | $last = (int) Jetpack_Options::get_option( 'last_heartbeat' ); |
| 103 | if ( $last && ( $last + DAY_IN_SECONDS - HOUR_IN_SECONDS > time() ) ) { |
| 104 | return; |
| 105 | } |
| 106 | |
| 107 | /* |
| 108 | * Check for an identity crisis |
| 109 | * |
| 110 | * If one exists: |
| 111 | * - Bump stat for ID crisis |
| 112 | * - Email site admin about potential ID crisis |
| 113 | */ |
| 114 | |
| 115 | // Coming Soon! |
| 116 | |
| 117 | foreach ( self::generate_stats_array( 'v2-' ) as $key => $value ) { |
| 118 | if ( is_array( $value ) ) { |
| 119 | foreach ( $value as $v ) { |
| 120 | $a8c_mc_stats->add( $key, (string) $v ); |
| 121 | } |
| 122 | } else { |
| 123 | $a8c_mc_stats->add( $key, (string) $value ); |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | Jetpack_Options::update_option( 'last_heartbeat', time() ); |
| 128 | |
| 129 | $a8c_mc_stats->do_server_side_stats(); |
| 130 | |
| 131 | /** |
| 132 | * Fires when we synchronize all registered options on heartbeat. |
| 133 | * |
| 134 | * @since 3.3.0 |
| 135 | */ |
| 136 | do_action( 'jetpack_heartbeat' ); |
| 137 | } |
| 138 | |
| 139 | /** |
| 140 | * Generates heartbeat stats data. |
| 141 | * |
| 142 | * @param string $prefix Prefix to add before stats identifier. |
| 143 | * |
| 144 | * @return array The stats array. |
| 145 | */ |
| 146 | public static function generate_stats_array( $prefix = '' ) { |
| 147 | |
| 148 | /** |
| 149 | * This filter is used to build the array of stats that are bumped once a day by Jetpack Heartbeat. |
| 150 | * |
| 151 | * Filter the array and add key => value pairs where |
| 152 | * * key is the stat group name |
| 153 | * * value is the stat name. |
| 154 | * |
| 155 | * Example: |
| 156 | * add_filter( 'jetpack_heartbeat_stats_array', function( $stats ) { |
| 157 | * $stats['is-https'] = is_ssl() ? 'https' : 'http'; |
| 158 | * }); |
| 159 | * |
| 160 | * This will bump the stats for the 'is-https/https' or 'is-https/http' stat. |
| 161 | * |
| 162 | * @param array $stats The stats to be filtered. |
| 163 | * @param string $prefix The prefix that will automatically be added at the begining at each stat group name. |
| 164 | */ |
| 165 | $stats = apply_filters( 'jetpack_heartbeat_stats_array', array(), $prefix ); |
| 166 | $return = array(); |
| 167 | |
| 168 | // Apply prefix to stats. |
| 169 | foreach ( $stats as $stat => $value ) { |
| 170 | $return[ "$prefix$stat" ] = $value; |
| 171 | } |
| 172 | |
| 173 | return $return; |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * Registers jetpack.getHeartbeatData xmlrpc method |
| 178 | * |
| 179 | * @param array $methods The list of methods to be filtered. |
| 180 | * @return array $methods |
| 181 | */ |
| 182 | public static function jetpack_xmlrpc_methods( $methods ) { |
| 183 | $methods['jetpack.getHeartbeatData'] = array( __CLASS__, 'xmlrpc_data_response' ); |
| 184 | return $methods; |
| 185 | } |
| 186 | |
| 187 | /** |
| 188 | * Handles the response for the jetpack.getHeartbeatData xmlrpc method |
| 189 | * |
| 190 | * @param array $params The parameters received in the request. |
| 191 | * @return array $params all the stats that heartbeat handles. |
| 192 | */ |
| 193 | public static function xmlrpc_data_response( $params = array() ) { |
| 194 | // The WordPress XML-RPC server sets a default param of array() |
| 195 | // if no argument is passed on the request and the method handlers get this array in $params. |
| 196 | // generate_stats_array() needs a string as first argument. |
| 197 | $params = empty( $params ) ? '' : $params; |
| 198 | return self::generate_stats_array( $params ); |
| 199 | } |
| 200 | |
| 201 | /** |
| 202 | * Clear scheduled events |
| 203 | * |
| 204 | * @return void |
| 205 | */ |
| 206 | public function deactivate() { |
| 207 | // Deal with the old pre-3.0 weekly one. |
| 208 | $timestamp = wp_next_scheduled( 'jetpack_heartbeat' ); |
| 209 | if ( $timestamp ) { |
| 210 | wp_unschedule_event( $timestamp, 'jetpack_heartbeat' ); |
| 211 | } |
| 212 | |
| 213 | $timestamp = wp_next_scheduled( $this->cron_name ); |
| 214 | wp_unschedule_event( $timestamp, $this->cron_name ); |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * Interact with the Heartbeat |
| 219 | * |
| 220 | * ## OPTIONS |
| 221 | * |
| 222 | * inspect (default): Gets the list of data that is going to be sent in the heartbeat and the date/time of the last heartbeat |
| 223 | * |
| 224 | * @param array $args Arguments passed via CLI. |
| 225 | * |
| 226 | * @return void |
| 227 | */ |
| 228 | public function cli_callback( $args ) { |
| 229 | |
| 230 | $allowed_args = array( |
| 231 | 'inspect', |
| 232 | ); |
| 233 | |
| 234 | if ( isset( $args[0] ) && ! in_array( $args[0], $allowed_args, true ) ) { |
| 235 | /* translators: %s is a command like "prompt" */ |
| 236 | WP_CLI::error( sprintf( __( '%s is not a valid command.', 'jetpack-connection' ), $args[0] ) ); |
| 237 | } |
| 238 | |
| 239 | $stats = self::generate_stats_array(); |
| 240 | $formatted_stats = array(); |
| 241 | |
| 242 | foreach ( $stats as $stat_name => $bin ) { |
| 243 | $formatted_stats[] = array( |
| 244 | 'Stat name' => $stat_name, |
| 245 | 'Bin' => $bin, |
| 246 | ); |
| 247 | } |
| 248 | |
| 249 | WP_CLI\Utils\format_items( 'table', $formatted_stats, array( 'Stat name', 'Bin' ) ); |
| 250 | |
| 251 | $last_heartbeat = Jetpack_Options::get_option( 'last_heartbeat' ); |
| 252 | |
| 253 | if ( $last_heartbeat ) { |
| 254 | $last_date = gmdate( 'Y-m-d H:i:s', $last_heartbeat ); |
| 255 | /* translators: %s is the full datetime of the last heart beat e.g. 2020-01-01 12:21:23 */ |
| 256 | WP_CLI::line( sprintf( __( 'Last heartbeat sent at: %s', 'jetpack-connection' ), $last_date ) ); |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | /** |
| 261 | * Initialize the heartbeat REST API. |
| 262 | * |
| 263 | * @return void |
| 264 | */ |
| 265 | public function initialize_rest_api() { |
| 266 | register_rest_route( |
| 267 | 'jetpack/v4', |
| 268 | '/heartbeat/data', |
| 269 | array( |
| 270 | 'methods' => WP_REST_Server::READABLE, |
| 271 | 'callback' => array( $this, 'rest_heartbeat_data' ), |
| 272 | 'permission_callback' => array( $this, 'rest_heartbeat_data_permission_check' ), |
| 273 | 'args' => array( |
| 274 | 'prefix' => array( |
| 275 | 'description' => __( 'Prefix to add before the stats identifiers.', 'jetpack-connection' ), |
| 276 | 'type' => 'string', |
| 277 | ), |
| 278 | ), |
| 279 | ) |
| 280 | ); |
| 281 | } |
| 282 | |
| 283 | /** |
| 284 | * Endpoint to retrieve the heartbeat data. |
| 285 | * |
| 286 | * @param WP_REST_Request $request The request data. |
| 287 | * |
| 288 | * @since 2.7.0 |
| 289 | * |
| 290 | * @return array |
| 291 | */ |
| 292 | public function rest_heartbeat_data( WP_REST_Request $request ) { |
| 293 | return static::generate_stats_array( $request->get_param( 'prefix' ) ); |
| 294 | } |
| 295 | |
| 296 | /** |
| 297 | * Check permissions for the `get_heartbeat_data` endpoint. |
| 298 | * |
| 299 | * @return true|WP_Error |
| 300 | */ |
| 301 | public function rest_heartbeat_data_permission_check() { |
| 302 | if ( current_user_can( 'jetpack_connect' ) ) { |
| 303 | return true; |
| 304 | } |
| 305 | |
| 306 | return Rest_Authentication::is_signed_with_blog_token() |
| 307 | ? true |
| 308 | : new WP_Error( 'invalid_permission_heartbeat_data', REST_Connector::get_user_permissions_error_msg(), array( 'status' => rest_authorization_required_code() ) ); |
| 309 | } |
| 310 | } |