class.jetpack-sync-listener.php
| 1 | <?php |
| 2 | |
| 3 | require_once dirname( __FILE__ ) . '/class.jetpack-sync-settings.php'; |
| 4 | require_once dirname( __FILE__ ) . '/class.jetpack-sync-queue.php'; |
| 5 | require_once dirname( __FILE__ ) . '/class.jetpack-sync-modules.php'; |
| 6 | require_once dirname( __FILE__ ) . '/class.jetpack-sync-actions.php'; |
| 7 | |
| 8 | /** |
| 9 | * This class monitors actions and logs them to the queue to be sent |
| 10 | */ |
| 11 | class Jetpack_Sync_Listener { |
| 12 | const QUEUE_STATE_CHECK_TRANSIENT = 'jetpack_sync_last_checked_queue_state'; |
| 13 | const QUEUE_STATE_CHECK_TIMEOUT = 300; // 5 minutes |
| 14 | |
| 15 | private $sync_queue; |
| 16 | private $full_sync_queue; |
| 17 | private $sync_queue_size_limit; |
| 18 | private $sync_queue_lag_limit; |
| 19 | |
| 20 | // singleton functions |
| 21 | private static $instance; |
| 22 | |
| 23 | public static function get_instance() { |
| 24 | if ( null === self::$instance ) { |
| 25 | self::$instance = new self(); |
| 26 | } |
| 27 | |
| 28 | return self::$instance; |
| 29 | } |
| 30 | |
| 31 | // this is necessary because you can't use "new" when you declare instance properties >:( |
| 32 | protected function __construct() { |
| 33 | $this->set_defaults(); |
| 34 | $this->init(); |
| 35 | } |
| 36 | |
| 37 | private function init() { |
| 38 | $handler = array( $this, 'action_handler' ); |
| 39 | $full_sync_handler = array( $this, 'full_sync_action_handler' ); |
| 40 | |
| 41 | foreach ( Jetpack_Sync_Modules::get_modules() as $module ) { |
| 42 | $module->init_listeners( $handler ); |
| 43 | $module->init_full_sync_listeners( $full_sync_handler ); |
| 44 | } |
| 45 | |
| 46 | // Module Activation |
| 47 | add_action( 'jetpack_activate_module', $handler ); |
| 48 | add_action( 'jetpack_deactivate_module', $handler ); |
| 49 | |
| 50 | // Jetpack Upgrade |
| 51 | add_action( 'updating_jetpack_version', $handler, 10, 2 ); |
| 52 | |
| 53 | // Send periodic checksum |
| 54 | add_action( 'jetpack_sync_checksum', $handler ); |
| 55 | } |
| 56 | |
| 57 | function get_sync_queue() { |
| 58 | return $this->sync_queue; |
| 59 | } |
| 60 | |
| 61 | function get_full_sync_queue() { |
| 62 | return $this->full_sync_queue; |
| 63 | } |
| 64 | |
| 65 | function set_queue_size_limit( $limit ) { |
| 66 | $this->sync_queue_size_limit = $limit; |
| 67 | } |
| 68 | |
| 69 | function get_queue_size_limit() { |
| 70 | return $this->sync_queue_size_limit; |
| 71 | } |
| 72 | |
| 73 | function set_queue_lag_limit( $age ) { |
| 74 | $this->sync_queue_lag_limit = $age; |
| 75 | } |
| 76 | |
| 77 | function get_queue_lag_limit() { |
| 78 | return $this->sync_queue_lag_limit; |
| 79 | } |
| 80 | |
| 81 | function force_recheck_queue_limit() { |
| 82 | delete_transient( self::QUEUE_STATE_CHECK_TRANSIENT . '_' . $this->sync_queue->id ); |
| 83 | delete_transient( self::QUEUE_STATE_CHECK_TRANSIENT . '_' . $this->full_sync_queue->id ); |
| 84 | } |
| 85 | |
| 86 | // prevent adding items to the queue if it hasn't sent an item for 15 mins |
| 87 | // AND the queue is over 1000 items long (by default) |
| 88 | function can_add_to_queue( $queue ) { |
| 89 | if ( Jetpack_Sync_Settings::get_setting( 'disable' ) ) { |
| 90 | return false; |
| 91 | } |
| 92 | |
| 93 | $state_transient_name = self::QUEUE_STATE_CHECK_TRANSIENT . '_' . $queue->id; |
| 94 | |
| 95 | $queue_state = get_transient( $state_transient_name ); |
| 96 | |
| 97 | if ( false === $queue_state ) { |
| 98 | $queue_state = array( $queue->size(), $queue->lag() ); |
| 99 | set_transient( $state_transient_name, $queue_state, self::QUEUE_STATE_CHECK_TIMEOUT ); |
| 100 | } |
| 101 | |
| 102 | list( $queue_size, $queue_age ) = $queue_state; |
| 103 | |
| 104 | return ( $queue_age < $this->sync_queue_lag_limit ) |
| 105 | || |
| 106 | ( ( $queue_size + 1 ) < $this->sync_queue_size_limit ); |
| 107 | } |
| 108 | |
| 109 | function full_sync_action_handler() { |
| 110 | $args = func_get_args(); |
| 111 | $this->enqueue_action( current_filter(), $args, $this->full_sync_queue ); |
| 112 | } |
| 113 | |
| 114 | function action_handler() { |
| 115 | $args = func_get_args(); |
| 116 | $this->enqueue_action( current_filter(), $args, $this->sync_queue ); |
| 117 | } |
| 118 | |
| 119 | // add many actions to the queue directly, without invoking them |
| 120 | function bulk_enqueue_full_sync_actions( $action_name, $args_array ) { |
| 121 | $queue = $this->get_full_sync_queue(); |
| 122 | |
| 123 | // periodically check the size of the queue, and disable adding to it if |
| 124 | // it exceeds some limit AND the oldest item exceeds the age limit (i.e. sending has stopped) |
| 125 | if ( ! $this->can_add_to_queue( $queue ) ) { |
| 126 | return; |
| 127 | } |
| 128 | |
| 129 | // if we add any items to the queue, we should try to ensure that our script |
| 130 | // can't be killed before they are sent |
| 131 | if ( function_exists( 'ignore_user_abort' ) ) { |
| 132 | ignore_user_abort( true ); |
| 133 | } |
| 134 | |
| 135 | $data_to_enqueue = array(); |
| 136 | $user_id = get_current_user_id(); |
| 137 | $currtime = microtime( true ); |
| 138 | $is_importing = Jetpack_Sync_Settings::is_importing(); |
| 139 | |
| 140 | foreach( $args_array as $args ) { |
| 141 | |
| 142 | /** |
| 143 | * Modify or reject the data within an action before it is enqueued locally. |
| 144 | * |
| 145 | * @since 4.2.0 |
| 146 | * |
| 147 | * @module sync |
| 148 | * |
| 149 | * @param array The action parameters |
| 150 | */ |
| 151 | $args = apply_filters( "jetpack_sync_before_enqueue_$action_name", $args ); |
| 152 | |
| 153 | // allow listeners to abort |
| 154 | if ( $args === false ) { |
| 155 | continue; |
| 156 | } |
| 157 | |
| 158 | $data_to_enqueue[] = array( |
| 159 | $action_name, |
| 160 | array( $args ), |
| 161 | $user_id, |
| 162 | $currtime, |
| 163 | $is_importing, |
| 164 | ); |
| 165 | } |
| 166 | |
| 167 | $queue->add_all( $data_to_enqueue ); |
| 168 | } |
| 169 | |
| 170 | function enqueue_action( $current_filter, $args, $queue ) { |
| 171 | // don't enqueue an action during the outbound http request - this prevents recursion |
| 172 | if ( Jetpack_Sync_Settings::is_sending() ) { |
| 173 | return; |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * Add an action hook to execute when anything on the whitelist gets sent to the queue to sync. |
| 178 | * |
| 179 | * @module sync |
| 180 | * |
| 181 | * @since 5.9.0 |
| 182 | */ |
| 183 | do_action( 'jetpack_sync_action_before_enqueue' ); |
| 184 | |
| 185 | /** |
| 186 | * Modify or reject the data within an action before it is enqueued locally. |
| 187 | * |
| 188 | * @since 4.2.0 |
| 189 | * |
| 190 | * @param array The action parameters |
| 191 | */ |
| 192 | $args = apply_filters( "jetpack_sync_before_enqueue_$current_filter", $args ); |
| 193 | |
| 194 | // allow listeners to abort |
| 195 | if ( $args === false ) { |
| 196 | return; |
| 197 | } |
| 198 | |
| 199 | // periodically check the size of the queue, and disable adding to it if |
| 200 | // it exceeds some limit AND the oldest item exceeds the age limit (i.e. sending has stopped) |
| 201 | if ( ! $this->can_add_to_queue( $queue ) ) { |
| 202 | return; |
| 203 | } |
| 204 | |
| 205 | // if we add any items to the queue, we should try to ensure that our script |
| 206 | // can't be killed before they are sent |
| 207 | if ( function_exists( 'ignore_user_abort' ) ) { |
| 208 | ignore_user_abort( true ); |
| 209 | } |
| 210 | |
| 211 | if ( |
| 212 | 'sync' === $queue->id || |
| 213 | in_array( |
| 214 | $current_filter, |
| 215 | array( |
| 216 | 'jetpack_full_sync_start', |
| 217 | 'jetpack_full_sync_end', |
| 218 | 'jetpack_full_sync_cancel' |
| 219 | ) |
| 220 | ) |
| 221 | ) { |
| 222 | $queue->add( array( |
| 223 | $current_filter, |
| 224 | $args, |
| 225 | get_current_user_id(), |
| 226 | microtime( true ), |
| 227 | Jetpack_Sync_Settings::is_importing(), |
| 228 | $this->get_actor( $current_filter, $args ), |
| 229 | ) ); |
| 230 | } else { |
| 231 | $queue->add( array( |
| 232 | $current_filter, |
| 233 | $args, |
| 234 | get_current_user_id(), |
| 235 | microtime( true ), |
| 236 | Jetpack_Sync_Settings::is_importing() |
| 237 | ) ); |
| 238 | } |
| 239 | |
| 240 | // since we've added some items, let's try to load the sender so we can send them as quickly as possible |
| 241 | if ( ! Jetpack_Sync_Actions::$sender ) { |
| 242 | add_filter( 'jetpack_sync_sender_should_load', '__return_true' ); |
| 243 | if ( did_action( 'init' ) ) { |
| 244 | Jetpack_Sync_Actions::add_sender_shutdown(); |
| 245 | } |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | function get_actor( $current_filter, $args ) { |
| 250 | if ( 'wp_login' === $current_filter ) { |
| 251 | $user = get_user_by( 'ID', $args[1]->data->ID ); |
| 252 | } else { |
| 253 | $user = wp_get_current_user(); |
| 254 | } |
| 255 | |
| 256 | $translated_role = Jetpack::translate_user_to_role( $user ); |
| 257 | |
| 258 | $actor = array( |
| 259 | 'wpcom_user_id' => null, |
| 260 | 'external_user_id' => isset( $user->ID ) ? $user->ID : null, |
| 261 | 'display_name' => isset( $user->display_name ) ? $user->display_name : null, |
| 262 | 'user_email' => isset( $user->user_email ) ? $user->user_email : null, |
| 263 | 'user_roles' => isset( $user->roles ) ? $user->roles : null, |
| 264 | 'translated_role' => $translated_role ? $translated_role : null, |
| 265 | 'is_cron' => defined( 'DOING_CRON' ) ? DOING_CRON : false, |
| 266 | 'is_rest' => defined( 'REST_API_REQUEST' ) ? REST_API_REQUEST : false, |
| 267 | 'is_xmlrpc' => defined( 'XMLRPC_REQUEST' ) ? XMLRPC_REQUEST : false, |
| 268 | 'is_wp_rest' => defined( 'REST_REQUEST' ) ? REST_REQUEST : false, |
| 269 | 'is_ajax' => defined( 'DOING_AJAX' ) ? DOING_AJAX : false, |
| 270 | 'is_wp_admin' => is_admin(), |
| 271 | 'is_cli' => defined( 'WP_CLI' ) ? WP_CLI : false, |
| 272 | 'from_url' => $this->get_request_url(), |
| 273 | ); |
| 274 | |
| 275 | if ( $this->should_send_user_data_with_actor( $current_filter ) ) { |
| 276 | require_once( JETPACK__PLUGIN_DIR . 'modules/protect/shared-functions.php' ); |
| 277 | $actor['ip'] = jetpack_protect_get_ip(); |
| 278 | $actor['user_agent'] = isset( $_SERVER['HTTP_USER_AGENT'] ) ? $_SERVER['HTTP_USER_AGENT'] : 'unknown'; |
| 279 | } |
| 280 | |
| 281 | return $actor; |
| 282 | } |
| 283 | |
| 284 | function should_send_user_data_with_actor( $current_filter ) { |
| 285 | $should_send = in_array( $current_filter, array( 'wp_login', 'wp_logout', 'jetpack_valid_failed_login_attempt' ) ); |
| 286 | /** |
| 287 | * Allow or deny sending actor's user data ( IP and UA ) during a sync event |
| 288 | * |
| 289 | * @since 5.8.0 |
| 290 | * |
| 291 | * @module sync |
| 292 | * |
| 293 | * @param bool True if we should send user data |
| 294 | * @param string The current filter that is performing the sync action |
| 295 | */ |
| 296 | return apply_filters( 'jetpack_sync_actor_user_data', $should_send, $current_filter ); |
| 297 | } |
| 298 | |
| 299 | function set_defaults() { |
| 300 | $this->sync_queue = new Jetpack_Sync_Queue( 'sync' ); |
| 301 | $this->full_sync_queue = new Jetpack_Sync_Queue( 'full_sync' ); |
| 302 | $this->set_queue_size_limit( Jetpack_Sync_Settings::get_setting( 'max_queue_size' ) ); |
| 303 | $this->set_queue_lag_limit( Jetpack_Sync_Settings::get_setting( 'max_queue_lag' ) ); |
| 304 | } |
| 305 | |
| 306 | function get_request_url() { |
| 307 | if ( isset( $_SERVER['HTTP_HOST'], $_SERVER['REQUEST_URI'] ) ) { |
| 308 | return 'http' . (isset($_SERVER['HTTPS']) ? 's' : '') . '://' . "{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}"; |
| 309 | } |
| 310 | return is_admin() ? get_admin_url( get_current_blog_id() ) : home_url(); |
| 311 | } |
| 312 | } |
| 313 |