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| 1 | <?php |
| 2 | /** |
| 3 | * Options sync module. |
| 4 | * |
| 5 | * @package automattic/jetpack-sync |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\Sync\Modules; |
| 9 | |
| 10 | use Automattic\Jetpack\Sync\Defaults; |
| 11 | use Automattic\Jetpack\Sync\Settings; |
| 12 | |
| 13 | if ( ! defined( 'ABSPATH' ) ) { |
| 14 | exit( 0 ); |
| 15 | } |
| 16 | |
| 17 | /** |
| 18 | * Class to handle sync for options. |
| 19 | */ |
| 20 | class Options extends Module { |
| 21 | /** |
| 22 | * Whitelist for options we want to sync. |
| 23 | * |
| 24 | * @access private |
| 25 | * |
| 26 | * @var array |
| 27 | */ |
| 28 | private $options_whitelist; |
| 29 | |
| 30 | /** |
| 31 | * Contentless options we want to sync. |
| 32 | * |
| 33 | * @access private |
| 34 | * |
| 35 | * @var array |
| 36 | */ |
| 37 | private $options_contentless; |
| 38 | |
| 39 | /** |
| 40 | * Sync module name. |
| 41 | * |
| 42 | * @access public |
| 43 | * |
| 44 | * @return string |
| 45 | */ |
| 46 | public function name() { |
| 47 | return 'options'; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * Initialize options action listeners. |
| 52 | * |
| 53 | * @access public |
| 54 | * |
| 55 | * @param callable $callable Action handler callable. |
| 56 | */ |
| 57 | public function init_listeners( $callable ) { |
| 58 | // Options. |
| 59 | add_action( 'added_option', $callable, 10, 2 ); |
| 60 | add_action( 'updated_option', $callable, 10, 3 ); |
| 61 | add_action( 'deleted_option', $callable, 10, 1 ); |
| 62 | |
| 63 | // Sync Core Icon: Detect changes in Core's Site Icon and make it syncable. |
| 64 | add_action( 'add_option_site_icon', array( $this, 'jetpack_sync_core_icon' ) ); |
| 65 | add_action( 'update_option_site_icon', array( $this, 'jetpack_sync_core_icon' ) ); |
| 66 | add_action( 'delete_option_site_icon', array( $this, 'jetpack_sync_core_icon' ) ); |
| 67 | |
| 68 | // Handle deprecated options. |
| 69 | add_filter( 'jetpack_options_whitelist', array( $this, 'add_deprecated_options' ) ); |
| 70 | |
| 71 | $whitelist_option_handler = array( $this, 'whitelist_options' ); |
| 72 | add_filter( 'jetpack_sync_before_enqueue_deleted_option', $whitelist_option_handler ); |
| 73 | add_filter( 'jetpack_sync_before_enqueue_added_option', $whitelist_option_handler ); |
| 74 | add_filter( 'jetpack_sync_before_enqueue_updated_option', $whitelist_option_handler ); |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * Initialize options action listeners for full sync. |
| 79 | * |
| 80 | * @access public |
| 81 | * |
| 82 | * @param callable $callable Action handler callable. |
| 83 | */ |
| 84 | public function init_full_sync_listeners( $callable ) { |
| 85 | add_action( 'jetpack_full_sync_options', $callable ); |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Initialize the module in the sender. |
| 90 | * |
| 91 | * @access public |
| 92 | */ |
| 93 | public function init_before_send() { |
| 94 | // Full sync. |
| 95 | add_filter( 'jetpack_sync_before_send_jetpack_full_sync_options', array( $this, 'expand_options' ) ); |
| 96 | } |
| 97 | |
| 98 | /** |
| 99 | * Set module defaults. |
| 100 | * Define the options whitelist and contentless options. |
| 101 | * |
| 102 | * @access public |
| 103 | */ |
| 104 | public function set_defaults() { |
| 105 | $this->update_options_whitelist(); |
| 106 | $this->update_options_contentless(); |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Set module defaults at a later time. |
| 111 | * |
| 112 | * @access public |
| 113 | */ |
| 114 | public function set_late_default() { |
| 115 | /** This filter is already documented in json-endpoints/jetpack/class.wpcom-json-api-get-option-endpoint.php */ |
| 116 | $late_options = apply_filters( 'jetpack_options_whitelist', array() ); |
| 117 | if ( ! empty( $late_options ) && is_array( $late_options ) ) { |
| 118 | $this->options_whitelist = array_merge( $this->options_whitelist, $late_options ); |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Add old deprecated options to the list of options to keep in sync. |
| 124 | * |
| 125 | * @since 1.14.0 |
| 126 | * |
| 127 | * @access public |
| 128 | * |
| 129 | * @param array $options The default list of site options. |
| 130 | */ |
| 131 | public function add_deprecated_options( $options ) { |
| 132 | global $wp_version; |
| 133 | |
| 134 | $deprecated_options = array( |
| 135 | 'blacklist_keys' => '5.5-alpha', // Replaced by disallowed_keys. |
| 136 | 'comment_whitelist' => '5.5-alpha', // Replaced by comment_previously_approved. |
| 137 | ); |
| 138 | |
| 139 | foreach ( $deprecated_options as $option => $version ) { |
| 140 | if ( version_compare( $wp_version, $version, '<=' ) ) { |
| 141 | $options[] = $option; |
| 142 | } |
| 143 | } |
| 144 | |
| 145 | return $options; |
| 146 | } |
| 147 | |
| 148 | /** |
| 149 | * Enqueue the options actions for full sync. |
| 150 | * |
| 151 | * @access public |
| 152 | * |
| 153 | * @param array $config Full sync configuration for this sync module. |
| 154 | * @param int $max_items_to_enqueue Maximum number of items to enqueue. |
| 155 | * @param boolean $state True if full sync has finished enqueueing this module, false otherwise. |
| 156 | * @return array Number of actions enqueued, and next module state. |
| 157 | */ |
| 158 | public function enqueue_full_sync_actions( $config, $max_items_to_enqueue, $state ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 159 | /** |
| 160 | * Tells the client to sync all options to the server |
| 161 | * |
| 162 | * @since 1.6.3 |
| 163 | * @since-jetpack 4.2.0 |
| 164 | * |
| 165 | * @param boolean Whether to expand options (should always be true) |
| 166 | */ |
| 167 | do_action( 'jetpack_full_sync_options', true ); |
| 168 | |
| 169 | // The number of actions enqueued, and next module state (true == done). |
| 170 | return array( 1, true ); |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Send the options actions for full sync. |
| 175 | * |
| 176 | * @access public |
| 177 | * |
| 178 | * @param array $config Full sync configuration for this sync module. |
| 179 | * @param array $status This module Full Sync status. |
| 180 | * @param int $send_until The timestamp until the current request can send. |
| 181 | * @param int $started The timestamp when the full sync started. |
| 182 | * |
| 183 | * @return array This module Full Sync status. |
| 184 | */ |
| 185 | public function send_full_sync_actions( $config, $status, $send_until, $started ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 186 | // we call this instead of do_action when sending immediately. |
| 187 | $result = $this->send_action( 'jetpack_full_sync_options', array( true ) ); |
| 188 | |
| 189 | if ( is_wp_error( $result ) ) { |
| 190 | $status['error'] = true; |
| 191 | return $status; |
| 192 | } |
| 193 | $status['finished'] = true; |
| 194 | $status['sent'] = $status['total']; |
| 195 | return $status; |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * Retrieve an estimated number of actions that will be enqueued. |
| 200 | * |
| 201 | * @access public |
| 202 | * |
| 203 | * @param array $config Full sync configuration for this sync module. |
| 204 | * @return int Number of items yet to be enqueued. |
| 205 | */ |
| 206 | public function estimate_full_sync_actions( $config ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 207 | return 1; |
| 208 | } |
| 209 | |
| 210 | /** |
| 211 | * Retrieve the actions that will be sent for this module during a full sync. |
| 212 | * |
| 213 | * @access public |
| 214 | * |
| 215 | * @return array Full sync actions of this module. |
| 216 | */ |
| 217 | public function get_full_sync_actions() { |
| 218 | return array( 'jetpack_full_sync_options' ); |
| 219 | } |
| 220 | |
| 221 | /** |
| 222 | * Retrieve all options as per the current options whitelist. |
| 223 | * Public so that we don't have to store so much data all the options twice. |
| 224 | * |
| 225 | * @access public |
| 226 | * |
| 227 | * @return array All options. |
| 228 | */ |
| 229 | public function get_all_options() { |
| 230 | $options = array(); |
| 231 | $random_string = wp_generate_password(); |
| 232 | foreach ( $this->options_whitelist as $option ) { |
| 233 | if ( str_starts_with( $option, Settings::SETTINGS_OPTION_PREFIX ) ) { |
| 234 | $option_value = Settings::get_setting( str_replace( Settings::SETTINGS_OPTION_PREFIX, '', $option ) ); |
| 235 | $options[ $option ] = $option_value; |
| 236 | } else { |
| 237 | $option_value = get_option( $option, $random_string ); |
| 238 | if ( $option_value !== $random_string ) { |
| 239 | $options[ $option ] = $option_value; |
| 240 | } |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | // Add theme mods. |
| 245 | $theme_mods_option = 'theme_mods_' . get_option( 'stylesheet' ); |
| 246 | $theme_mods_value = get_option( $theme_mods_option, $random_string ); |
| 247 | if ( $theme_mods_value === $random_string ) { |
| 248 | return $options; |
| 249 | } |
| 250 | $this->filter_theme_mods( $theme_mods_value ); |
| 251 | $options[ $theme_mods_option ] = $theme_mods_value; |
| 252 | return $options; |
| 253 | } |
| 254 | |
| 255 | /** |
| 256 | * Update the options whitelist to the default one. |
| 257 | * |
| 258 | * @access public |
| 259 | */ |
| 260 | public function update_options_whitelist() { |
| 261 | $this->options_whitelist = Defaults::get_options_whitelist(); |
| 262 | } |
| 263 | |
| 264 | /** |
| 265 | * Set the options whitelist. |
| 266 | * |
| 267 | * @access public |
| 268 | * |
| 269 | * @param array $options The new options whitelist. |
| 270 | */ |
| 271 | public function set_options_whitelist( $options ) { |
| 272 | $this->options_whitelist = $options; |
| 273 | } |
| 274 | |
| 275 | /** |
| 276 | * Get the options whitelist. |
| 277 | * |
| 278 | * @access public |
| 279 | * |
| 280 | * @return array The options whitelist. |
| 281 | */ |
| 282 | public function get_options_whitelist() { |
| 283 | return $this->options_whitelist; |
| 284 | } |
| 285 | |
| 286 | /** |
| 287 | * Update the contentless options to the defaults. |
| 288 | * |
| 289 | * @access public |
| 290 | */ |
| 291 | public function update_options_contentless() { |
| 292 | $this->options_contentless = Defaults::get_options_contentless(); |
| 293 | } |
| 294 | |
| 295 | /** |
| 296 | * Get the contentless options. |
| 297 | * |
| 298 | * @access public |
| 299 | * |
| 300 | * @return array Array of the contentless options. |
| 301 | */ |
| 302 | public function get_options_contentless() { |
| 303 | return $this->options_contentless; |
| 304 | } |
| 305 | |
| 306 | /** |
| 307 | * Reject any options that aren't whitelisted or contentless. |
| 308 | * |
| 309 | * @access public |
| 310 | * |
| 311 | * @param array $args The hook parameters. |
| 312 | * @return array $args The hook parameters. |
| 313 | */ |
| 314 | public function whitelist_options( $args ) { |
| 315 | // Reject non-whitelisted options. |
| 316 | if ( ! $this->is_whitelisted_option( $args[0] ) ) { |
| 317 | return false; |
| 318 | } |
| 319 | |
| 320 | // Check if 'jetpack_options' were updated and reject if the change affected only blacklisted keys. |
| 321 | if ( 'jetpack_options' === $args[0] && 3 === count( $args ) ) { |
| 322 | if ( ! $this->should_enqueue_jetpack_options_update( $args[1], $args[2] ) ) { |
| 323 | return false; |
| 324 | } |
| 325 | |
| 326 | return $args; |
| 327 | } |
| 328 | |
| 329 | // Filter our weird array( false ) value for theme_mods_*. |
| 330 | if ( str_starts_with( $args[0], 'theme_mods_' ) ) { |
| 331 | $this->filter_theme_mods( $args[1] ); |
| 332 | if ( isset( $args[2] ) ) { |
| 333 | $this->filter_theme_mods( $args[2] ); |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | // Set value(s) of contentless option to empty string(s). |
| 338 | if ( $this->is_contentless_option( $args[0] ) ) { |
| 339 | // Create a new array matching length of $args, containing empty strings. |
| 340 | $empty = array_fill( 0, count( $args ), '' ); |
| 341 | $empty[0] = $args[0]; |
| 342 | return $empty; |
| 343 | } |
| 344 | |
| 345 | return $args; |
| 346 | } |
| 347 | |
| 348 | /** |
| 349 | * Whether a certain option is whitelisted for sync. |
| 350 | * |
| 351 | * @access public |
| 352 | * |
| 353 | * @param string $option Option name. |
| 354 | * @return boolean Whether the option is whitelisted. |
| 355 | */ |
| 356 | public function is_whitelisted_option( $option ) { |
| 357 | return in_array( $option, $this->options_whitelist, true ) || str_starts_with( $option, 'theme_mods_' ); |
| 358 | } |
| 359 | |
| 360 | /** |
| 361 | * Whether a certain option is a contentless one. |
| 362 | * |
| 363 | * @access private |
| 364 | * |
| 365 | * @param string $option Option name. |
| 366 | * @return boolean Whether the option is contentless. |
| 367 | */ |
| 368 | private function is_contentless_option( $option ) { |
| 369 | return in_array( $option, $this->options_contentless, true ); |
| 370 | } |
| 371 | |
| 372 | /** |
| 373 | * Filters out falsy values from theme mod options. |
| 374 | * |
| 375 | * @access private |
| 376 | * |
| 377 | * @param array $value Option value. |
| 378 | */ |
| 379 | private function filter_theme_mods( &$value ) { |
| 380 | if ( is_array( $value ) && isset( $value[0] ) ) { |
| 381 | unset( $value[0] ); |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | /** |
| 386 | * Handle changes in the core site icon and sync them. |
| 387 | * |
| 388 | * @access public |
| 389 | */ |
| 390 | public function jetpack_sync_core_icon() { |
| 391 | $url = get_site_icon_url(); |
| 392 | |
| 393 | $jetpack_url = \Jetpack_Options::get_option( 'site_icon_url' ); |
| 394 | if ( defined( 'JETPACK__PLUGIN_DIR' ) ) { |
| 395 | if ( ! function_exists( 'jetpack_site_icon_url' ) ) { |
| 396 | require_once JETPACK__PLUGIN_DIR . 'modules/site-icon/site-icon-functions.php'; |
| 397 | } |
| 398 | $jetpack_url = jetpack_site_icon_url(); |
| 399 | } |
| 400 | |
| 401 | // If there's a core icon, maybe update the option. If not, fall back to Jetpack's. |
| 402 | if ( ! empty( $url ) && $jetpack_url !== $url ) { |
| 403 | // This is the option that is synced with dotcom. |
| 404 | \Jetpack_Options::update_option( 'site_icon_url', $url ); |
| 405 | } elseif ( empty( $url ) ) { |
| 406 | \Jetpack_Options::delete_option( 'site_icon_url' ); |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | /** |
| 411 | * Expand all options within a hook before they are serialized and sent to the server. |
| 412 | * |
| 413 | * @access public |
| 414 | * |
| 415 | * @param array $args The hook parameters. |
| 416 | * @return array $args The hook parameters. |
| 417 | */ |
| 418 | public function expand_options( $args ) { |
| 419 | if ( $args[0] ) { |
| 420 | return $this->get_all_options(); |
| 421 | } |
| 422 | |
| 423 | return $args; |
| 424 | } |
| 425 | |
| 426 | /** |
| 427 | * Return Total number of objects. |
| 428 | * |
| 429 | * @param array $config Full Sync config. |
| 430 | * |
| 431 | * @return int total |
| 432 | */ |
| 433 | public function total( $config ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 434 | return count( Defaults::get_options_whitelist() ); |
| 435 | } |
| 436 | |
| 437 | /** |
| 438 | * Retrieve a set of options by their IDs. |
| 439 | * |
| 440 | * @access public |
| 441 | * |
| 442 | * @param string $object_type Object type. |
| 443 | * @param array $ids Object IDs. |
| 444 | * @return array Array of objects. |
| 445 | */ |
| 446 | public function get_objects_by_id( $object_type, $ids ) { |
| 447 | if ( empty( $ids ) || empty( $object_type ) || 'option' !== $object_type ) { |
| 448 | return array(); |
| 449 | } |
| 450 | |
| 451 | $objects = array(); |
| 452 | foreach ( (array) $ids as $id ) { |
| 453 | $object = $this->get_object_by_id( $object_type, $id ); |
| 454 | |
| 455 | // Only add object if we have the object. |
| 456 | if ( 'OPTION-DOES-NOT-EXIST' !== $object ) { |
| 457 | if ( 'all' === $id ) { |
| 458 | // If all was requested it contains all options and can simply be returned. |
| 459 | return $object; |
| 460 | } |
| 461 | $objects[ $id ] = $object; |
| 462 | } |
| 463 | } |
| 464 | |
| 465 | return $objects; |
| 466 | } |
| 467 | |
| 468 | /** |
| 469 | * Retrieve an option by its name. |
| 470 | * |
| 471 | * @access public |
| 472 | * |
| 473 | * @param string $object_type Type of the sync object. |
| 474 | * @param string $id ID of the sync object. |
| 475 | * @return mixed Value of Option or 'OPTION-DOES-NOT-EXIST' if not found. |
| 476 | */ |
| 477 | public function get_object_by_id( $object_type, $id ) { |
| 478 | if ( 'option' === $object_type ) { |
| 479 | // Utilize Random string as default value to distinguish between false and not exist. |
| 480 | $random_string = wp_generate_password(); |
| 481 | // Only whitelisted options can be returned. |
| 482 | if ( in_array( $id, $this->options_whitelist, true ) ) { |
| 483 | if ( str_starts_with( $id, Settings::SETTINGS_OPTION_PREFIX ) ) { |
| 484 | $option_value = Settings::get_setting( str_replace( Settings::SETTINGS_OPTION_PREFIX, '', $id ) ); |
| 485 | return $option_value; |
| 486 | } else { |
| 487 | $option_value = get_option( $id, $random_string ); |
| 488 | if ( $option_value !== $random_string ) { |
| 489 | return $option_value; |
| 490 | } |
| 491 | } |
| 492 | } elseif ( 'all' === $id ) { |
| 493 | return $this->get_all_options(); |
| 494 | } |
| 495 | } |
| 496 | |
| 497 | return 'OPTION-DOES-NOT-EXIST'; |
| 498 | } |
| 499 | |
| 500 | /** |
| 501 | * Check if 'jetpack_options' option update should be processed based on excluded keys. |
| 502 | * |
| 503 | * @param mixed $old_value The old option value. |
| 504 | * @param mixed $value The new option value. |
| 505 | * @return bool False if only excluded keys changed (or no change), true otherwise. |
| 506 | */ |
| 507 | private function should_enqueue_jetpack_options_update( $old_value, $value ) { |
| 508 | // No changes at all. |
| 509 | if ( $old_value === $value ) { |
| 510 | return false; |
| 511 | } |
| 512 | // Values are different but not both arrays - meaningful change. |
| 513 | if ( ! is_array( $old_value ) || ! is_array( $value ) ) { |
| 514 | return true; |
| 515 | } |
| 516 | // Determine all top-level keys present in either the old or new value. |
| 517 | $all_keys = array_unique( |
| 518 | array_merge( |
| 519 | array_keys( $old_value ), |
| 520 | array_keys( $value ) |
| 521 | ) |
| 522 | ); |
| 523 | // Short-circuit as soon as we find a changed key that is not blacklisted. |
| 524 | foreach ( $all_keys as $key ) { |
| 525 | $old_has_key = array_key_exists( $key, $old_value ); |
| 526 | $new_has_key = array_key_exists( $key, $value ); |
| 527 | // Key was added or removed. |
| 528 | if ( ! $old_has_key || ! $new_has_key ) { |
| 529 | if ( ! in_array( $key, Defaults::$jetpack_options_blacklist, true ) ) { |
| 530 | return true; |
| 531 | } |
| 532 | continue; |
| 533 | } |
| 534 | // Key exists in both arrays but the value changed. |
| 535 | if ( $old_value[ $key ] !== $value[ $key ] ) { |
| 536 | if ( ! in_array( $key, Defaults::$jetpack_options_blacklist, true ) ) { |
| 537 | return true; |
| 538 | } |
| 539 | } |
| 540 | } |
| 541 | // Either there were no effective changes, or all changed keys are excluded. |
| 542 | return false; |
| 543 | } |
| 544 | } |