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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 Automattic\Jetpack\Connection\Utils; |
| 13 | use Jetpack_Options; |
| 14 | use WP_CLI; |
| 15 | use WP_Error; |
| 16 | use WP_REST_Request; |
| 17 | use WP_REST_Server; |
| 18 | |
| 19 | /** |
| 20 | * Heartbeat sends a batch of stats to wp.com once a day |
| 21 | */ |
| 22 | class Heartbeat { |
| 23 | |
| 24 | /** |
| 25 | * Holds the singleton instance of this class |
| 26 | * |
| 27 | * @since 1.0.0 |
| 28 | * @since-jetpack 2.3.3 |
| 29 | * @var Heartbeat |
| 30 | */ |
| 31 | private static $instance = false; |
| 32 | |
| 33 | /** |
| 34 | * Cronjob identifier |
| 35 | * |
| 36 | * @var string |
| 37 | */ |
| 38 | private $cron_name = 'jetpack_v2_heartbeat'; |
| 39 | |
| 40 | /** |
| 41 | * Singleton |
| 42 | * |
| 43 | * @since 1.0.0 |
| 44 | * @since-jetpack 2.3.3 |
| 45 | * @static |
| 46 | * @return Heartbeat |
| 47 | */ |
| 48 | public static function init() { |
| 49 | if ( ! self::$instance ) { |
| 50 | self::$instance = new Heartbeat(); |
| 51 | } |
| 52 | |
| 53 | return self::$instance; |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Constructor for singleton |
| 58 | * |
| 59 | * @since 1.0.0 |
| 60 | * @since-jetpack 2.3.3 |
| 61 | */ |
| 62 | private function __construct() { |
| 63 | |
| 64 | // Schedule the task. |
| 65 | add_action( $this->cron_name, array( $this, 'cron_exec' ) ); |
| 66 | |
| 67 | if ( ! wp_next_scheduled( $this->cron_name ) ) { |
| 68 | // Deal with the old pre-3.0 weekly one. |
| 69 | $timestamp = wp_next_scheduled( 'jetpack_heartbeat' ); |
| 70 | if ( $timestamp ) { |
| 71 | wp_unschedule_event( $timestamp, 'jetpack_heartbeat' ); |
| 72 | } |
| 73 | |
| 74 | wp_schedule_event( time(), 'daily', $this->cron_name ); |
| 75 | } |
| 76 | |
| 77 | add_filter( 'jetpack_xmlrpc_unauthenticated_methods', array( __CLASS__, 'jetpack_xmlrpc_methods' ) ); |
| 78 | |
| 79 | if ( defined( 'WP_CLI' ) && WP_CLI ) { |
| 80 | WP_CLI::add_command( 'jetpack-heartbeat', array( $this, 'cli_callback' ) ); |
| 81 | } |
| 82 | |
| 83 | add_action( 'rest_api_init', array( $this, 'initialize_rest_api' ) ); |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * Method that gets executed on the wp-cron call |
| 88 | * |
| 89 | * @since 1.0.0 |
| 90 | * @since-jetpack 2.3.3 |
| 91 | * @global string $wp_version |
| 92 | */ |
| 93 | public function cron_exec() { |
| 94 | |
| 95 | $a8c_mc_stats = new A8c_Mc_Stats(); |
| 96 | |
| 97 | /* |
| 98 | * This should run daily. Figuring in for variances in |
| 99 | * WP_CRON, don't let it run more than every 23 hours at most. |
| 100 | * |
| 101 | * i.e. if it ran less than 23 hours ago, fail out. |
| 102 | */ |
| 103 | $last = (int) Jetpack_Options::get_option( 'last_heartbeat' ); |
| 104 | if ( $last && ( $last + DAY_IN_SECONDS - HOUR_IN_SECONDS > time() ) ) { |
| 105 | return; |
| 106 | } |
| 107 | |
| 108 | /* |
| 109 | * Check for an identity crisis |
| 110 | * |
| 111 | * If one exists: |
| 112 | * - Bump stat for ID crisis |
| 113 | * - Email site admin about potential ID crisis |
| 114 | */ |
| 115 | |
| 116 | // Coming Soon! |
| 117 | |
| 118 | foreach ( self::generate_stats_array( 'v2-' ) as $key => $value ) { |
| 119 | if ( is_array( $value ) ) { |
| 120 | foreach ( $value as $v ) { |
| 121 | $a8c_mc_stats->add( $key, (string) $v ); |
| 122 | } |
| 123 | } else { |
| 124 | $a8c_mc_stats->add( $key, (string) $value ); |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | Jetpack_Options::update_option( 'last_heartbeat', time() ); |
| 129 | |
| 130 | $a8c_mc_stats->do_server_side_stats(); |
| 131 | |
| 132 | /** |
| 133 | * Fires when we synchronize all registered options on heartbeat. |
| 134 | * |
| 135 | * @since 3.3.0 |
| 136 | */ |
| 137 | do_action( 'jetpack_heartbeat' ); |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * Generates heartbeat stats data. |
| 142 | * |
| 143 | * @param string $prefix Prefix to add before stats identifier. |
| 144 | * |
| 145 | * @return array The stats array. |
| 146 | */ |
| 147 | public static function generate_stats_array( $prefix = '' ) { |
| 148 | |
| 149 | /** |
| 150 | * This filter is used to build the array of stats that are bumped once a day by Jetpack Heartbeat. |
| 151 | * |
| 152 | * Filter the array and add key => value pairs where |
| 153 | * * key is the stat group name |
| 154 | * * value is the stat name. |
| 155 | * |
| 156 | * Example: |
| 157 | * add_filter( 'jetpack_heartbeat_stats_array', function( $stats ) { |
| 158 | * $stats['is-https'] = is_ssl() ? 'https' : 'http'; |
| 159 | * }); |
| 160 | * |
| 161 | * This will bump the stats for the 'is-https/https' or 'is-https/http' stat. |
| 162 | * |
| 163 | * @param array $stats The stats to be filtered. |
| 164 | * @param string $prefix The prefix that will automatically be added at the begining at each stat group name. |
| 165 | */ |
| 166 | $stats = apply_filters( 'jetpack_heartbeat_stats_array', array(), $prefix ); |
| 167 | $return = array(); |
| 168 | |
| 169 | // Apply prefix to stats. |
| 170 | foreach ( $stats as $stat => $value ) { |
| 171 | $return[ "$prefix$stat" ] = $value; |
| 172 | } |
| 173 | |
| 174 | return $return; |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * Generates the site environment stats that are reported in the heartbeat. |
| 179 | * |
| 180 | * These describe the host environment (WordPress/PHP versions, site configuration, etc.) |
| 181 | * rather than the Jetpack plugin itself, so they live in the Connection package and are |
| 182 | * reported for every connected site, including standalone-connection installs. |
| 183 | * |
| 184 | * @since 8.7.9 |
| 185 | * |
| 186 | * @return array The environment stats array, keyed by unprefixed stat name. |
| 187 | */ |
| 188 | public static function get_environment_stats() { |
| 189 | $stats = array(); |
| 190 | |
| 191 | $stats['wp-version'] = get_bloginfo( 'version' ); |
| 192 | $stats['php-version'] = PHP_VERSION; |
| 193 | $stats['wp-branch'] = (float) get_bloginfo( 'version' ); |
| 194 | $stats['php-branch'] = (float) PHP_VERSION; |
| 195 | $stats['public'] = Jetpack_Options::get_option( 'public' ); |
| 196 | $stats['ssl'] = self::permit_ssl(); |
| 197 | $stats['is-https'] = is_ssl() ? 'https' : 'http'; |
| 198 | $stats['language'] = get_bloginfo( 'language' ); |
| 199 | $stats['charset'] = get_bloginfo( 'charset' ); |
| 200 | $stats['is-multisite'] = is_multisite() ? 'multisite' : 'singlesite'; |
| 201 | $stats['plugins'] = implode( ',', self::get_active_plugins() ); |
| 202 | |
| 203 | if ( function_exists( 'get_mu_plugins' ) ) { |
| 204 | $stats['mu-plugins'] = implode( ',', array_keys( get_mu_plugins() ) ); |
| 205 | } |
| 206 | |
| 207 | if ( function_exists( 'get_space_used' ) ) { // Only available in multisite. |
| 208 | $space_used = get_space_used(); |
| 209 | } else { |
| 210 | // This is the same as `get_space_used`, except it does not apply the short-circuit filter. |
| 211 | $upload_dir = wp_upload_dir(); |
| 212 | $space_used = get_dirsize( $upload_dir['basedir'] ) / MB_IN_BYTES; |
| 213 | } |
| 214 | |
| 215 | $stats['space-used'] = $space_used; |
| 216 | |
| 217 | // is-multi-network can have three values, `single-site`, `single-network`, and `multi-network`. |
| 218 | $stats['is-multi-network'] = 'single-site'; |
| 219 | if ( is_multisite() ) { |
| 220 | $stats['is-multi-network'] = ( new Status() )->is_multi_network() ? 'multi-network' : 'single-network'; |
| 221 | } |
| 222 | |
| 223 | if ( ! empty( $_SERVER['SERVER_ADDR'] ) || ! empty( $_SERVER['LOCAL_ADDR'] ) ) { |
| 224 | $ip = ! empty( $_SERVER['SERVER_ADDR'] ) ? wp_unslash( $_SERVER['SERVER_ADDR'] ) : wp_unslash( $_SERVER['LOCAL_ADDR'] ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Sanitized just below. |
| 225 | $ip_arr = array_map( 'intval', explode( '.', $ip ) ); |
| 226 | if ( 4 === count( $ip_arr ) ) { |
| 227 | $stats['ip-2-octets'] = implode( '.', array_slice( $ip_arr, 0, 2 ) ); |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | return $stats; |
| 232 | } |
| 233 | |
| 234 | /** |
| 235 | * Checks whether the site can connect to WordPress.com over SSL. |
| 236 | * |
| 237 | * This is the canonical SSL connectivity check. It caches both the boolean result (in the |
| 238 | * `jetpack_https_test` transient) and a structured failure reason (via |
| 239 | * {@see self::get_ssl_test_error()}) so a single check serves both the `ssl` heartbeat stat |
| 240 | * and consumers such as the Jetpack plugin's admin notice, which renders a localized message |
| 241 | * from the reason code. This avoids duplicate network checks and keeps translated strings out |
| 242 | * of the package. |
| 243 | * |
| 244 | * @since 8.7.9 |
| 245 | * |
| 246 | * @param bool $force_recheck Force the SSL recheck instead of using the cached result. |
| 247 | * @return bool Whether the site can connect to WordPress.com over SSL. |
| 248 | */ |
| 249 | public static function permit_ssl( $force_recheck = false ) { |
| 250 | $ssl = false; |
| 251 | if ( ! $force_recheck ) { |
| 252 | $ssl = get_transient( 'jetpack_https_test' ); |
| 253 | } |
| 254 | |
| 255 | if ( $force_recheck || false === $ssl ) { |
| 256 | $error = array( |
| 257 | 'code' => '', |
| 258 | 'detail' => '', |
| 259 | ); |
| 260 | |
| 261 | $api_base = Constants::get_constant( 'JETPACK__API_BASE' ); |
| 262 | if ( ! $api_base ) { |
| 263 | $api_base = Utils::DEFAULT_JETPACK__API_BASE; |
| 264 | } |
| 265 | |
| 266 | if ( ! str_starts_with( $api_base, 'https' ) ) { |
| 267 | $ssl = 0; |
| 268 | } else { |
| 269 | $ssl = 1; |
| 270 | |
| 271 | if ( ! wp_http_supports( array( 'ssl' => true ) ) ) { |
| 272 | $ssl = 0; |
| 273 | $error['code'] = 'no_ssl_support'; |
| 274 | } else { |
| 275 | $response = wp_remote_get( $api_base . 'test/1/' ); |
| 276 | if ( is_wp_error( $response ) ) { |
| 277 | $ssl = 0; |
| 278 | $error['code'] = 'no_ssl_support'; |
| 279 | } elseif ( 'OK' !== wp_remote_retrieve_body( $response ) ) { |
| 280 | $ssl = 0; |
| 281 | $error['code'] = 'bad_response'; |
| 282 | $error['detail'] = wp_remote_retrieve_body( $response ); |
| 283 | } |
| 284 | } |
| 285 | } |
| 286 | set_transient( 'jetpack_https_test', $ssl, DAY_IN_SECONDS ); |
| 287 | set_transient( 'jetpack_https_test_error', $error, DAY_IN_SECONDS ); |
| 288 | } |
| 289 | |
| 290 | return (bool) $ssl; |
| 291 | } |
| 292 | |
| 293 | /** |
| 294 | * Returns the structured reason for the last SSL connectivity failure. |
| 295 | * |
| 296 | * Consumers can map the returned reason code to a localized message. The `detail` value |
| 297 | * carries any additional context (e.g. the unexpected response body for `bad_response`). |
| 298 | * |
| 299 | * @since 8.7.9 |
| 300 | * |
| 301 | * @return array { |
| 302 | * The last SSL test error. |
| 303 | * |
| 304 | * @type string $code Reason code: '' (no error), 'no_ssl_support', or 'bad_response'. |
| 305 | * @type string $detail Additional context for the failure, if any. |
| 306 | * } |
| 307 | */ |
| 308 | public static function get_ssl_test_error() { |
| 309 | $error = get_transient( 'jetpack_https_test_error' ); |
| 310 | |
| 311 | if ( ! is_array( $error ) ) { |
| 312 | $error = array(); |
| 313 | } |
| 314 | |
| 315 | return array( |
| 316 | 'code' => isset( $error['code'] ) ? (string) $error['code'] : '', |
| 317 | 'detail' => isset( $error['detail'] ) ? (string) $error['detail'] : '', |
| 318 | ); |
| 319 | } |
| 320 | |
| 321 | /** |
| 322 | * Gets all plugins currently active, regardless of whether they're traditionally |
| 323 | * activated or network activated. |
| 324 | * |
| 325 | * Ported from the Jetpack plugin so the `plugins` heartbeat stat can be generated from |
| 326 | * the Connection package. This is the canonical implementation; the Jetpack plugin's |
| 327 | * `Jetpack::get_active_plugins()` delegates to it. |
| 328 | * |
| 329 | * @since 8.7.9 |
| 330 | * |
| 331 | * @return array |
| 332 | */ |
| 333 | public static function get_active_plugins() { |
| 334 | $active_plugins = (array) get_option( 'active_plugins', array() ); |
| 335 | |
| 336 | if ( is_multisite() ) { |
| 337 | // Due to legacy code, active_sitewide_plugins stores them in the keys, |
| 338 | // whereas active_plugins stores them in the values. |
| 339 | $network_plugins = array_keys( get_site_option( 'active_sitewide_plugins', array() ) ); |
| 340 | if ( $network_plugins ) { |
| 341 | $active_plugins = array_merge( $active_plugins, $network_plugins ); |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | sort( $active_plugins ); |
| 346 | |
| 347 | return array_unique( $active_plugins ); |
| 348 | } |
| 349 | |
| 350 | /** |
| 351 | * Registers jetpack.getHeartbeatData xmlrpc method |
| 352 | * |
| 353 | * @param array $methods The list of methods to be filtered. |
| 354 | * @return array $methods |
| 355 | */ |
| 356 | public static function jetpack_xmlrpc_methods( $methods ) { |
| 357 | $methods['jetpack.getHeartbeatData'] = array( __CLASS__, 'xmlrpc_data_response' ); |
| 358 | return $methods; |
| 359 | } |
| 360 | |
| 361 | /** |
| 362 | * Handles the response for the jetpack.getHeartbeatData xmlrpc method |
| 363 | * |
| 364 | * @param array $params The parameters received in the request. |
| 365 | * @return array $params all the stats that heartbeat handles. |
| 366 | */ |
| 367 | public static function xmlrpc_data_response( $params = array() ) { |
| 368 | // The WordPress XML-RPC server sets a default param of array() |
| 369 | // if no argument is passed on the request and the method handlers get this array in $params. |
| 370 | // generate_stats_array() needs a string as first argument. |
| 371 | $params = empty( $params ) ? '' : $params; |
| 372 | return self::generate_stats_array( $params ); |
| 373 | } |
| 374 | |
| 375 | /** |
| 376 | * Clear scheduled events |
| 377 | * |
| 378 | * @return void |
| 379 | */ |
| 380 | public function deactivate() { |
| 381 | // Deal with the old pre-3.0 weekly one. |
| 382 | $timestamp = wp_next_scheduled( 'jetpack_heartbeat' ); |
| 383 | if ( $timestamp ) { |
| 384 | wp_unschedule_event( $timestamp, 'jetpack_heartbeat' ); |
| 385 | } |
| 386 | |
| 387 | $timestamp = wp_next_scheduled( $this->cron_name ); |
| 388 | wp_unschedule_event( $timestamp, $this->cron_name ); |
| 389 | } |
| 390 | |
| 391 | /** |
| 392 | * Interact with the Heartbeat |
| 393 | * |
| 394 | * ## OPTIONS |
| 395 | * |
| 396 | * inspect (default): Gets the list of data that is going to be sent in the heartbeat and the date/time of the last heartbeat |
| 397 | * |
| 398 | * @param array $args Arguments passed via CLI. |
| 399 | * |
| 400 | * @return void |
| 401 | */ |
| 402 | public function cli_callback( $args ) { |
| 403 | |
| 404 | $allowed_args = array( |
| 405 | 'inspect', |
| 406 | ); |
| 407 | |
| 408 | if ( isset( $args[0] ) && ! in_array( $args[0], $allowed_args, true ) ) { |
| 409 | /* translators: %s is a command like "prompt" */ |
| 410 | WP_CLI::error( sprintf( __( '%s is not a valid command.', 'jetpack-connection' ), $args[0] ) ); |
| 411 | } |
| 412 | |
| 413 | $stats = self::generate_stats_array(); |
| 414 | $formatted_stats = array(); |
| 415 | |
| 416 | foreach ( $stats as $stat_name => $bin ) { |
| 417 | $formatted_stats[] = array( |
| 418 | 'Stat name' => $stat_name, |
| 419 | 'Bin' => $bin, |
| 420 | ); |
| 421 | } |
| 422 | |
| 423 | WP_CLI\Utils\format_items( 'table', $formatted_stats, array( 'Stat name', 'Bin' ) ); |
| 424 | |
| 425 | $last_heartbeat = Jetpack_Options::get_option( 'last_heartbeat' ); |
| 426 | |
| 427 | if ( $last_heartbeat ) { |
| 428 | $last_date = gmdate( 'Y-m-d H:i:s', $last_heartbeat ); |
| 429 | /* translators: %s is the full datetime of the last heart beat e.g. 2020-01-01 12:21:23 */ |
| 430 | WP_CLI::line( sprintf( __( 'Last heartbeat sent at: %s', 'jetpack-connection' ), $last_date ) ); |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | /** |
| 435 | * Initialize the heartbeat REST API. |
| 436 | * |
| 437 | * @return void |
| 438 | */ |
| 439 | public function initialize_rest_api() { |
| 440 | register_rest_route( |
| 441 | 'jetpack/v4', |
| 442 | '/heartbeat/data', |
| 443 | array( |
| 444 | 'methods' => WP_REST_Server::READABLE, |
| 445 | 'callback' => array( $this, 'rest_heartbeat_data' ), |
| 446 | 'permission_callback' => array( $this, 'rest_heartbeat_data_permission_check' ), |
| 447 | 'args' => array( |
| 448 | 'prefix' => array( |
| 449 | 'description' => __( 'Prefix to add before the stats identifiers.', 'jetpack-connection' ), |
| 450 | 'type' => 'string', |
| 451 | ), |
| 452 | ), |
| 453 | ) |
| 454 | ); |
| 455 | } |
| 456 | |
| 457 | /** |
| 458 | * Endpoint to retrieve the heartbeat data. |
| 459 | * |
| 460 | * @param WP_REST_Request $request The request data. |
| 461 | * |
| 462 | * @since 2.7.0 |
| 463 | * |
| 464 | * @return array |
| 465 | */ |
| 466 | public function rest_heartbeat_data( WP_REST_Request $request ) { |
| 467 | return static::generate_stats_array( $request->get_param( 'prefix' ) ); |
| 468 | } |
| 469 | |
| 470 | /** |
| 471 | * Check permissions for the `get_heartbeat_data` endpoint. |
| 472 | * |
| 473 | * @return true|WP_Error |
| 474 | */ |
| 475 | public function rest_heartbeat_data_permission_check() { |
| 476 | if ( current_user_can( 'jetpack_connect' ) ) { |
| 477 | return true; |
| 478 | } |
| 479 | |
| 480 | return Rest_Authentication::is_signed_with_blog_token() |
| 481 | ? true |
| 482 | : new WP_Error( 'invalid_permission_heartbeat_data', REST_Connector::get_user_permissions_error_msg(), array( 'status' => rest_authorization_required_code() ) ); |
| 483 | } |
| 484 | } |