class.json-api.php
| 1 | <?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName |
| 2 | /** |
| 3 | * Jetpack JSON API. |
| 4 | * |
| 5 | * @package automattic/jetpack |
| 6 | */ |
| 7 | |
| 8 | if ( ! defined( 'WPCOM_JSON_API__DEBUG' ) ) { |
| 9 | define( 'WPCOM_JSON_API__DEBUG', false ); |
| 10 | } |
| 11 | |
| 12 | require_once __DIR__ . '/sal/class.json-api-platform.php'; |
| 13 | |
| 14 | /** |
| 15 | * Jetpack JSON API. |
| 16 | */ |
| 17 | class WPCOM_JSON_API { |
| 18 | /** |
| 19 | * Static instance. |
| 20 | * |
| 21 | * @todo This should be private. |
| 22 | * @var self|null |
| 23 | */ |
| 24 | public static $self = null; |
| 25 | |
| 26 | /** |
| 27 | * Registered endpoints. |
| 28 | * |
| 29 | * @var WPCOM_JSON_API_Endpoint[] |
| 30 | */ |
| 31 | public $endpoints = array(); |
| 32 | |
| 33 | /** |
| 34 | * Endpoint being processed. |
| 35 | * |
| 36 | * @var WPCOM_JSON_API_Endpoint |
| 37 | */ |
| 38 | public $endpoint = null; |
| 39 | |
| 40 | /** |
| 41 | * Token details. |
| 42 | * |
| 43 | * @var array |
| 44 | */ |
| 45 | public $token_details = array(); |
| 46 | |
| 47 | /** |
| 48 | * Request HTTP method. |
| 49 | * |
| 50 | * @var string |
| 51 | */ |
| 52 | public $method = ''; |
| 53 | |
| 54 | /** |
| 55 | * Request URL. |
| 56 | * |
| 57 | * @var string |
| 58 | */ |
| 59 | public $url = ''; |
| 60 | |
| 61 | /** |
| 62 | * Path part of the request URL. |
| 63 | * |
| 64 | * @var string |
| 65 | */ |
| 66 | public $path = ''; |
| 67 | |
| 68 | /** |
| 69 | * Version extracted from the request URL. |
| 70 | * |
| 71 | * @var string|null |
| 72 | */ |
| 73 | public $version = null; |
| 74 | |
| 75 | /** |
| 76 | * Parsed query data. |
| 77 | * |
| 78 | * @var array |
| 79 | */ |
| 80 | public $query = array(); |
| 81 | |
| 82 | /** |
| 83 | * Post body, if the request is a POST. |
| 84 | * |
| 85 | * @var string|null |
| 86 | */ |
| 87 | public $post_body = null; |
| 88 | |
| 89 | /** |
| 90 | * Copy of `$_FILES` if the request is a POST. |
| 91 | * |
| 92 | * @var null|array |
| 93 | */ |
| 94 | public $files = null; |
| 95 | |
| 96 | /** |
| 97 | * Content type of the request. |
| 98 | * |
| 99 | * @var string|null |
| 100 | */ |
| 101 | public $content_type = null; |
| 102 | |
| 103 | /** |
| 104 | * Value of `$_SERVER['HTTP_ACCEPT']`, if any |
| 105 | * |
| 106 | * @var string |
| 107 | */ |
| 108 | public $accept = ''; |
| 109 | |
| 110 | /** |
| 111 | * Value of `$_SERVER['HTTPS']`, or "--UNset--" if unset. |
| 112 | * |
| 113 | * @var string |
| 114 | */ |
| 115 | public $_server_https; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore |
| 116 | |
| 117 | /** |
| 118 | * Whether to exit after serving a response. |
| 119 | * |
| 120 | * @var bool |
| 121 | */ |
| 122 | public $exit = true; |
| 123 | |
| 124 | /** |
| 125 | * Public API scheme. |
| 126 | * |
| 127 | * @var string |
| 128 | */ |
| 129 | public $public_api_scheme = 'https'; |
| 130 | |
| 131 | /** |
| 132 | * Output status code. |
| 133 | * |
| 134 | * @var int |
| 135 | */ |
| 136 | public $output_status_code = 200; |
| 137 | |
| 138 | /** |
| 139 | * Trapped error. |
| 140 | * |
| 141 | * @var null|array |
| 142 | */ |
| 143 | public $trapped_error = null; |
| 144 | |
| 145 | /** |
| 146 | * Whether output has been done. |
| 147 | * |
| 148 | * @var bool |
| 149 | */ |
| 150 | public $did_output = false; |
| 151 | |
| 152 | /** |
| 153 | * Extra HTTP headers. |
| 154 | * |
| 155 | * @var string |
| 156 | */ |
| 157 | public $extra_headers = array(); |
| 158 | |
| 159 | /** |
| 160 | * AMP source origin. |
| 161 | * |
| 162 | * @var string |
| 163 | */ |
| 164 | public $amp_source_origin = null; |
| 165 | |
| 166 | /** |
| 167 | * Initialize. |
| 168 | * |
| 169 | * @param string|null $method As for `$this->setup_inputs()`. |
| 170 | * @param string|null $url As for `$this->setup_inputs()`. |
| 171 | * @param string|null $post_body As for `$this->setup_inputs()`. |
| 172 | * @return WPCOM_JSON_API instance |
| 173 | */ |
| 174 | public static function init( $method = null, $url = null, $post_body = null ) { |
| 175 | if ( ! self::$self ) { |
| 176 | $class = function_exists( 'get_called_class' ) ? get_called_class() : __CLASS__; // phpcs:ignore PHPCompatibility.PHP.NewFunctions.get_called_classFound |
| 177 | self::$self = new $class( $method, $url, $post_body ); |
| 178 | } |
| 179 | return self::$self; |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * Add an endpoint. |
| 184 | * |
| 185 | * @param WPCOM_JSON_API_Endpoint $endpoint Endpoint to add. |
| 186 | */ |
| 187 | public function add( WPCOM_JSON_API_Endpoint $endpoint ) { |
| 188 | // @todo Determine if anything depends on this being serialized rather than e.g. JSON. |
| 189 | // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.serialize_serialize -- Legacy, possibly depended on elsewhere. |
| 190 | $path_versions = serialize( |
| 191 | array( |
| 192 | $endpoint->path, |
| 193 | $endpoint->min_version, |
| 194 | $endpoint->max_version, |
| 195 | ) |
| 196 | ); |
| 197 | if ( ! isset( $this->endpoints[ $path_versions ] ) ) { |
| 198 | $this->endpoints[ $path_versions ] = array(); |
| 199 | } |
| 200 | $this->endpoints[ $path_versions ][ $endpoint->method ] = $endpoint; |
| 201 | } |
| 202 | |
| 203 | /** |
| 204 | * Determine if a string is truthy. |
| 205 | * |
| 206 | * @param string $value "1", "t", and "true" (case insensitive) are falsey, everything else isn't. |
| 207 | * @return bool |
| 208 | */ |
| 209 | public static function is_truthy( $value ) { |
| 210 | switch ( strtolower( (string) $value ) ) { |
| 211 | case '1': |
| 212 | case 't': |
| 213 | case 'true': |
| 214 | return true; |
| 215 | } |
| 216 | |
| 217 | return false; |
| 218 | } |
| 219 | |
| 220 | /** |
| 221 | * Determine if a string is falsey. |
| 222 | * |
| 223 | * @param string $value "0", "f", and "false" (case insensitive) are falsey, everything else isn't. |
| 224 | * @return bool |
| 225 | */ |
| 226 | public static function is_falsy( $value ) { |
| 227 | switch ( strtolower( (string) $value ) ) { |
| 228 | case '0': |
| 229 | case 'f': |
| 230 | case 'false': |
| 231 | return true; |
| 232 | } |
| 233 | |
| 234 | return false; |
| 235 | } |
| 236 | |
| 237 | /** |
| 238 | * Constructor. |
| 239 | * |
| 240 | * @todo This should be private. |
| 241 | * @param string|null $method As for `$this->setup_inputs()`. |
| 242 | * @param string|null $url As for `$this->setup_inputs()`. |
| 243 | * @param string|null $post_body As for `$this->setup_inputs()`. |
| 244 | */ |
| 245 | public function __construct( $method = null, $url = null, $post_body = null ) { |
| 246 | $this->setup_inputs( $method, $url, $post_body ); |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Setup inputs. |
| 251 | * |
| 252 | * @param string|null $method Request HTTP method. Fetched from `$_SERVER` if null. |
| 253 | * @param string|null $url URL requested. Determined from `$_SERVER` if null. |
| 254 | * @param string|null $post_body POST body. Read from `php://input` if null and method is POST. |
| 255 | */ |
| 256 | public function setup_inputs( $method = null, $url = null, $post_body = null ) { |
| 257 | if ( $method === null ) { |
| 258 | $this->method = isset( $_SERVER['REQUEST_METHOD'] ) ? strtoupper( filter_var( wp_unslash( $_SERVER['REQUEST_METHOD'] ) ) ) : ''; |
| 259 | } else { |
| 260 | $this->method = strtoupper( $method ); |
| 261 | } |
| 262 | if ( $url === null ) { |
| 263 | // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Sniff misses the esc_url_raw. |
| 264 | $this->url = esc_url_raw( set_url_scheme( 'http://' . ( isset( $_SERVER['HTTP_HOST'] ) ? wp_unslash( $_SERVER['HTTP_HOST'] ) : '' ) . ( isset( $_SERVER['REQUEST_URI'] ) ? wp_unslash( $_SERVER['REQUEST_URI'] ) : '' ) ) ); |
| 265 | } else { |
| 266 | $this->url = $url; |
| 267 | } |
| 268 | |
| 269 | $parsed = wp_parse_url( $this->url ); |
| 270 | if ( ! empty( $parsed['path'] ) ) { |
| 271 | $this->path = $parsed['path']; |
| 272 | } |
| 273 | |
| 274 | if ( ! empty( $parsed['query'] ) ) { |
| 275 | wp_parse_str( $parsed['query'], $this->query ); |
| 276 | } |
| 277 | |
| 278 | if ( ! empty( $_SERVER['HTTP_ACCEPT'] ) ) { |
| 279 | $this->accept = filter_var( wp_unslash( $_SERVER['HTTP_ACCEPT'] ) ); |
| 280 | } |
| 281 | |
| 282 | if ( 'POST' === $this->method ) { |
| 283 | if ( $post_body === null ) { |
| 284 | $this->post_body = file_get_contents( 'php://input' ); |
| 285 | |
| 286 | if ( ! empty( $_SERVER['HTTP_CONTENT_TYPE'] ) ) { |
| 287 | $this->content_type = filter_var( wp_unslash( $_SERVER['HTTP_CONTENT_TYPE'] ) ); |
| 288 | } elseif ( ! empty( $_SERVER['CONTENT_TYPE'] ) ) { |
| 289 | $this->content_type = filter_var( wp_unslash( $_SERVER['CONTENT_TYPE'] ) ); |
| 290 | } elseif ( '{' === $this->post_body[0] ) { |
| 291 | $this->content_type = 'application/json'; |
| 292 | } else { |
| 293 | $this->content_type = 'application/x-www-form-urlencoded'; |
| 294 | } |
| 295 | |
| 296 | if ( 0 === strpos( strtolower( $this->content_type ), 'multipart/' ) ) { |
| 297 | // phpcs:ignore WordPress.Security.NonceVerification.Missing |
| 298 | $this->post_body = http_build_query( stripslashes_deep( $_POST ) ); |
| 299 | $this->files = $_FILES; |
| 300 | $this->content_type = 'multipart/form-data'; |
| 301 | } |
| 302 | } else { |
| 303 | $this->post_body = $post_body; |
| 304 | $this->content_type = isset( $this->post_body[0] ) && '{' === $this->post_body[0] ? 'application/json' : 'application/x-www-form-urlencoded'; |
| 305 | } |
| 306 | } else { |
| 307 | $this->post_body = null; |
| 308 | $this->content_type = null; |
| 309 | } |
| 310 | |
| 311 | $this->_server_https = array_key_exists( 'HTTPS', $_SERVER ) ? filter_var( wp_unslash( $_SERVER['HTTPS'] ) ) : '--UNset--'; |
| 312 | } |
| 313 | |
| 314 | /** |
| 315 | * Initialize. |
| 316 | * |
| 317 | * @return null|WP_Error (although this implementation always returns null) |
| 318 | */ |
| 319 | public function initialize() { |
| 320 | $this->token_details['blog_id'] = Jetpack_Options::get_option( 'id' ); |
| 321 | return null; |
| 322 | } |
| 323 | |
| 324 | /** |
| 325 | * Checks if the current request is authorized with a blog token. |
| 326 | * This method is overridden by a child class in WPCOM. |
| 327 | * |
| 328 | * @since 9.1.0 |
| 329 | * |
| 330 | * @param boolean|int $site_id The site id. |
| 331 | * @return boolean |
| 332 | */ |
| 333 | public function is_jetpack_authorized_for_site( $site_id = false ) { |
| 334 | if ( ! $this->token_details ) { |
| 335 | return false; |
| 336 | } |
| 337 | |
| 338 | $token_details = (object) $this->token_details; |
| 339 | |
| 340 | $site_in_token = (int) $token_details->blog_id; |
| 341 | |
| 342 | if ( $site_in_token < 1 ) { |
| 343 | return false; |
| 344 | } |
| 345 | |
| 346 | if ( $site_id && $site_in_token !== (int) $site_id ) { |
| 347 | return false; |
| 348 | } |
| 349 | |
| 350 | if ( (int) get_current_user_id() !== 0 ) { |
| 351 | // If Jetpack blog token is used, no logged-in user should exist. |
| 352 | return false; |
| 353 | } |
| 354 | |
| 355 | return true; |
| 356 | } |
| 357 | |
| 358 | /** |
| 359 | * Serve. |
| 360 | * |
| 361 | * @param bool $exit Whether to exit. |
| 362 | * @return string|null Content type (assuming it didn't exit), or null in certain error cases. |
| 363 | */ |
| 364 | public function serve( $exit = true ) { |
| 365 | ini_set( 'display_errors', false ); // phpcs:ignore WordPress.PHP.IniSet.display_errors_Blacklisted |
| 366 | |
| 367 | $this->exit = (bool) $exit; |
| 368 | |
| 369 | // This was causing problems with Jetpack, but is necessary for wpcom |
| 370 | // @see https://github.com/Automattic/jetpack/pull/2603 |
| 371 | // @see r124548-wpcom . |
| 372 | if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) { |
| 373 | add_filter( 'home_url', array( $this, 'ensure_http_scheme_of_home_url' ), 10, 3 ); |
| 374 | } |
| 375 | |
| 376 | add_filter( 'user_can_richedit', '__return_true' ); |
| 377 | |
| 378 | add_filter( 'comment_edit_pre', array( $this, 'comment_edit_pre' ) ); |
| 379 | |
| 380 | $initialization = $this->initialize(); |
| 381 | if ( 'OPTIONS' === $this->method ) { |
| 382 | /** |
| 383 | * Fires before the page output. |
| 384 | * Can be used to specify custom header options. |
| 385 | * |
| 386 | * @module json-api |
| 387 | * |
| 388 | * @since 3.1.0 |
| 389 | */ |
| 390 | do_action( 'wpcom_json_api_options' ); |
| 391 | return $this->output( 200, '', 'text/plain' ); |
| 392 | } |
| 393 | |
| 394 | if ( is_wp_error( $initialization ) ) { |
| 395 | $this->output_error( $initialization ); |
| 396 | return; |
| 397 | } |
| 398 | |
| 399 | // Normalize path and extract API version. |
| 400 | $this->path = untrailingslashit( $this->path ); |
| 401 | preg_match( '#^/rest/v(\d+(\.\d+)*)#', $this->path, $matches ); |
| 402 | $this->path = substr( $this->path, strlen( $matches[0] ) ); |
| 403 | $this->version = $matches[1]; |
| 404 | |
| 405 | $allowed_methods = array( 'GET', 'POST' ); |
| 406 | $four_oh_five = false; |
| 407 | |
| 408 | $is_help = preg_match( '#/help/?$#i', $this->path ); |
| 409 | $matching_endpoints = array(); |
| 410 | |
| 411 | if ( $is_help ) { |
| 412 | $origin = get_http_origin(); |
| 413 | |
| 414 | if ( ! empty( $origin ) && 'GET' === $this->method ) { |
| 415 | header( 'Access-Control-Allow-Origin: ' . esc_url_raw( $origin ) ); |
| 416 | } |
| 417 | |
| 418 | $this->path = substr( rtrim( $this->path, '/' ), 0, -5 ); |
| 419 | // Show help for all matching endpoints regardless of method. |
| 420 | $methods = $allowed_methods; |
| 421 | $find_all_matching_endpoints = true; |
| 422 | // How deep to truncate each endpoint's path to see if it matches this help request. |
| 423 | $depth = substr_count( $this->path, '/' ) + 1; |
| 424 | if ( false !== stripos( $this->accept, 'javascript' ) || false !== stripos( $this->accept, 'json' ) ) { |
| 425 | $help_content_type = 'json'; |
| 426 | } else { |
| 427 | $help_content_type = 'html'; |
| 428 | } |
| 429 | } else { |
| 430 | if ( in_array( $this->method, $allowed_methods, true ) ) { |
| 431 | // Only serve requested method. |
| 432 | $methods = array( $this->method ); |
| 433 | $find_all_matching_endpoints = false; |
| 434 | } else { |
| 435 | // We don't allow this requested method - find matching endpoints and send 405. |
| 436 | $methods = $allowed_methods; |
| 437 | $find_all_matching_endpoints = true; |
| 438 | $four_oh_five = true; |
| 439 | } |
| 440 | } |
| 441 | |
| 442 | // Find which endpoint to serve. |
| 443 | $found = false; |
| 444 | foreach ( $this->endpoints as $endpoint_path_versions => $endpoints_by_method ) { |
| 445 | // @todo Determine if anything depends on this being serialized rather than e.g. JSON. |
| 446 | // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.serialize_unserialize -- Legacy, possibly depended on elsewhere. |
| 447 | $endpoint_path_versions = unserialize( $endpoint_path_versions ); |
| 448 | $endpoint_path = $endpoint_path_versions[0]; |
| 449 | $endpoint_min_version = $endpoint_path_versions[1]; |
| 450 | $endpoint_max_version = $endpoint_path_versions[2]; |
| 451 | |
| 452 | // Make sure max_version is not less than min_version. |
| 453 | if ( version_compare( $endpoint_max_version, $endpoint_min_version, '<' ) ) { |
| 454 | $endpoint_max_version = $endpoint_min_version; |
| 455 | } |
| 456 | |
| 457 | foreach ( $methods as $method ) { |
| 458 | if ( ! isset( $endpoints_by_method[ $method ] ) ) { |
| 459 | continue; |
| 460 | } |
| 461 | |
| 462 | // Normalize. |
| 463 | $endpoint_path = untrailingslashit( $endpoint_path ); |
| 464 | if ( $is_help ) { |
| 465 | // Truncate path at help depth. |
| 466 | $endpoint_path = join( '/', array_slice( explode( '/', $endpoint_path ), 0, $depth ) ); |
| 467 | } |
| 468 | |
| 469 | // Generate regular expression from sprintf(). |
| 470 | $endpoint_path_regex = str_replace( array( '%s', '%d' ), array( '([^/?&]+)', '(\d+)' ), $endpoint_path ); |
| 471 | |
| 472 | if ( ! preg_match( "#^$endpoint_path_regex\$#", $this->path, $path_pieces ) ) { |
| 473 | // This endpoint does not match the requested path. |
| 474 | continue; |
| 475 | } |
| 476 | |
| 477 | if ( version_compare( $this->version, $endpoint_min_version, '<' ) || version_compare( $this->version, $endpoint_max_version, '>' ) ) { |
| 478 | // This endpoint does not match the requested version. |
| 479 | continue; |
| 480 | } |
| 481 | |
| 482 | $found = true; |
| 483 | |
| 484 | if ( $find_all_matching_endpoints ) { |
| 485 | $matching_endpoints[] = array( $endpoints_by_method[ $method ], $path_pieces ); |
| 486 | } else { |
| 487 | // The method parameters are now in $path_pieces. |
| 488 | $endpoint = $endpoints_by_method[ $method ]; |
| 489 | break 2; |
| 490 | } |
| 491 | } |
| 492 | } |
| 493 | |
| 494 | if ( ! $found ) { |
| 495 | return $this->output( 404, '', 'text/plain' ); |
| 496 | } |
| 497 | |
| 498 | if ( $four_oh_five ) { |
| 499 | $allowed_methods = array(); |
| 500 | foreach ( $matching_endpoints as $matching_endpoint ) { |
| 501 | $allowed_methods[] = $matching_endpoint[0]->method; |
| 502 | } |
| 503 | |
| 504 | header( 'Allow: ' . strtoupper( join( ',', array_unique( $allowed_methods ) ) ) ); |
| 505 | return $this->output( |
| 506 | 405, |
| 507 | array( |
| 508 | 'error' => 'not_allowed', |
| 509 | 'error_message' => 'Method not allowed', |
| 510 | ) |
| 511 | ); |
| 512 | } |
| 513 | |
| 514 | if ( $is_help ) { |
| 515 | /** |
| 516 | * Fires before the API output. |
| 517 | * |
| 518 | * @since 1.9.0 |
| 519 | * |
| 520 | * @param string help. |
| 521 | */ |
| 522 | do_action( 'wpcom_json_api_output', 'help' ); |
| 523 | $proxied = function_exists( 'wpcom_is_proxied_request' ) ? wpcom_is_proxied_request() : false; |
| 524 | if ( 'json' === $help_content_type ) { |
| 525 | $docs = array(); |
| 526 | foreach ( $matching_endpoints as $matching_endpoint ) { |
| 527 | if ( $matching_endpoint[0]->is_publicly_documentable() || $proxied || WPCOM_JSON_API__DEBUG ) { |
| 528 | $docs[] = call_user_func( array( $matching_endpoint[0], 'generate_documentation' ) ); |
| 529 | } |
| 530 | } |
| 531 | return $this->output( 200, $docs ); |
| 532 | } else { |
| 533 | status_header( 200 ); |
| 534 | foreach ( $matching_endpoints as $matching_endpoint ) { |
| 535 | if ( $matching_endpoint[0]->is_publicly_documentable() || $proxied || WPCOM_JSON_API__DEBUG ) { |
| 536 | call_user_func( array( $matching_endpoint[0], 'document' ) ); |
| 537 | } |
| 538 | } |
| 539 | } |
| 540 | exit; |
| 541 | } |
| 542 | |
| 543 | if ( $endpoint->in_testing && ! WPCOM_JSON_API__DEBUG ) { |
| 544 | return $this->output( 404, '', 'text/plain' ); |
| 545 | } |
| 546 | |
| 547 | /** This action is documented in class.json-api.php */ |
| 548 | do_action( 'wpcom_json_api_output', $endpoint->stat ); |
| 549 | |
| 550 | $response = $this->process_request( $endpoint, $path_pieces ); |
| 551 | |
| 552 | if ( ! $response && ! is_array( $response ) ) { |
| 553 | return $this->output( 500, '', 'text/plain' ); |
| 554 | } elseif ( is_wp_error( $response ) ) { |
| 555 | return $this->output_error( $response ); |
| 556 | } |
| 557 | |
| 558 | $output_status_code = $this->output_status_code; |
| 559 | $this->set_output_status_code(); |
| 560 | |
| 561 | return $this->output( $output_status_code, $response, 'application/json', $this->extra_headers ); |
| 562 | } |
| 563 | |
| 564 | /** |
| 565 | * Process a request. |
| 566 | * |
| 567 | * @param WPCOM_JSON_API_Endpoint $endpoint Endpoint. |
| 568 | * @param array $path_pieces Path pieces. |
| 569 | * @return array|WP_Error Return value from the endpoint's callback. |
| 570 | */ |
| 571 | public function process_request( WPCOM_JSON_API_Endpoint $endpoint, $path_pieces ) { |
| 572 | $this->endpoint = $endpoint; |
| 573 | return call_user_func_array( array( $endpoint, 'callback' ), $path_pieces ); |
| 574 | } |
| 575 | |
| 576 | /** |
| 577 | * Output a response or error without exiting. |
| 578 | * |
| 579 | * @param int $status_code HTTP status code. |
| 580 | * @param mixed $response Response data. |
| 581 | * @param string $content_type Content type of the response. |
| 582 | */ |
| 583 | public function output_early( $status_code, $response = null, $content_type = 'application/json' ) { |
| 584 | $exit = $this->exit; |
| 585 | $this->exit = false; |
| 586 | if ( is_wp_error( $response ) ) { |
| 587 | $this->output_error( $response ); |
| 588 | } else { |
| 589 | $this->output( $status_code, $response, $content_type ); |
| 590 | } |
| 591 | $this->exit = $exit; |
| 592 | if ( ! defined( 'XMLRPC_REQUEST' ) || ! XMLRPC_REQUEST ) { |
| 593 | $this->finish_request(); |
| 594 | } |
| 595 | } |
| 596 | |
| 597 | /** |
| 598 | * Set output status code. |
| 599 | * |
| 600 | * @param int $code HTTP status code. |
| 601 | */ |
| 602 | public function set_output_status_code( $code = 200 ) { |
| 603 | $this->output_status_code = $code; |
| 604 | } |
| 605 | |
| 606 | /** |
| 607 | * Output a response. |
| 608 | * |
| 609 | * @param int $status_code HTTP status code. |
| 610 | * @param mixed $response Response data. |
| 611 | * @param string $content_type Content type of the response. |
| 612 | * @param array $extra Additional HTTP headers. |
| 613 | * @return string Content type (assuming it didn't exit). |
| 614 | */ |
| 615 | public function output( $status_code, $response = null, $content_type = 'application/json', $extra = array() ) { |
| 616 | $status_code = (int) $status_code; |
| 617 | |
| 618 | // In case output() was called before the callback returned. |
| 619 | if ( $this->did_output ) { |
| 620 | if ( $this->exit ) { |
| 621 | exit; |
| 622 | } |
| 623 | return $content_type; |
| 624 | } |
| 625 | $this->did_output = true; |
| 626 | |
| 627 | // 400s and 404s are allowed for all origins |
| 628 | if ( 404 === $status_code || 400 === $status_code ) { |
| 629 | header( 'Access-Control-Allow-Origin: *' ); |
| 630 | } |
| 631 | |
| 632 | /* Add headers for form submission from <amp-form/> */ |
| 633 | if ( $this->amp_source_origin ) { |
| 634 | header( 'Access-Control-Allow-Origin: ' . wp_unslash( $this->amp_source_origin ) ); |
| 635 | header( 'Access-Control-Allow-Credentials: true' ); |
| 636 | } |
| 637 | |
| 638 | if ( $response === null ) { |
| 639 | $response = new stdClass(); |
| 640 | } |
| 641 | |
| 642 | if ( 'text/plain' === $content_type || |
| 643 | 'text/html' === $content_type ) { |
| 644 | status_header( (int) $status_code ); |
| 645 | header( 'Content-Type: ' . $content_type ); |
| 646 | foreach ( $extra as $key => $value ) { |
| 647 | header( "$key: $value" ); |
| 648 | } |
| 649 | echo $response; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped |
| 650 | if ( $this->exit ) { |
| 651 | exit; |
| 652 | } |
| 653 | |
| 654 | return $content_type; |
| 655 | } |
| 656 | |
| 657 | $response = $this->filter_fields( $response ); |
| 658 | |
| 659 | if ( isset( $this->query['http_envelope'] ) && self::is_truthy( $this->query['http_envelope'] ) ) { |
| 660 | $headers = array( |
| 661 | array( |
| 662 | 'name' => 'Content-Type', |
| 663 | 'value' => $content_type, |
| 664 | ), |
| 665 | ); |
| 666 | |
| 667 | foreach ( $extra as $key => $value ) { |
| 668 | $headers[] = array( |
| 669 | 'name' => $key, |
| 670 | 'value' => $value, |
| 671 | ); |
| 672 | } |
| 673 | |
| 674 | $response = array( |
| 675 | 'code' => (int) $status_code, |
| 676 | 'headers' => $headers, |
| 677 | 'body' => $response, |
| 678 | ); |
| 679 | $status_code = 200; |
| 680 | $content_type = 'application/json'; |
| 681 | } |
| 682 | |
| 683 | status_header( (int) $status_code ); |
| 684 | header( "Content-Type: $content_type" ); |
| 685 | if ( isset( $this->query['callback'] ) && is_string( $this->query['callback'] ) ) { |
| 686 | $callback = preg_replace( '/[^a-z0-9_.]/i', '', $this->query['callback'] ); |
| 687 | } else { |
| 688 | $callback = false; |
| 689 | } |
| 690 | |
| 691 | if ( $callback ) { |
| 692 | // Mitigate Rosetta Flash [1] by setting the Content-Type-Options: nosniff header |
| 693 | // and by prepending the JSONP response with a JS comment. |
| 694 | // [1] <https://blog.miki.it/2014/7/8/abusing-jsonp-with-rosetta-flash/index.html>. |
| 695 | echo "/**/$callback("; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- This is JSONP output, not HTML. |
| 696 | |
| 697 | } |
| 698 | echo $this->json_encode( $response ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- This is JSON or JSONP output, not HTML. |
| 699 | if ( $callback ) { |
| 700 | echo ');'; |
| 701 | } |
| 702 | |
| 703 | if ( $this->exit ) { |
| 704 | exit; |
| 705 | } |
| 706 | |
| 707 | return $content_type; |
| 708 | } |
| 709 | |
| 710 | /** |
| 711 | * Serialize an error. |
| 712 | * |
| 713 | * @param WP_Error $error Error. |
| 714 | * @return array with 'status_code' and 'errors' data. |
| 715 | */ |
| 716 | public static function serializable_error( $error ) { |
| 717 | |
| 718 | $status_code = $error->get_error_data(); |
| 719 | |
| 720 | if ( is_array( $status_code ) ) { |
| 721 | $status_code = $status_code['status_code']; |
| 722 | } |
| 723 | |
| 724 | if ( ! $status_code ) { |
| 725 | $status_code = 400; |
| 726 | } |
| 727 | $response = array( |
| 728 | 'error' => $error->get_error_code(), |
| 729 | 'message' => $error->get_error_message(), |
| 730 | ); |
| 731 | |
| 732 | $additional_data = $error->get_error_data( 'additional_data' ); |
| 733 | if ( $additional_data ) { |
| 734 | $response['data'] = $additional_data; |
| 735 | } |
| 736 | |
| 737 | return array( |
| 738 | 'status_code' => $status_code, |
| 739 | 'errors' => $response, |
| 740 | ); |
| 741 | } |
| 742 | |
| 743 | /** |
| 744 | * Output an error. |
| 745 | * |
| 746 | * @param WP_Error $error Error. |
| 747 | * @return string Content type (assuming it didn't exit). |
| 748 | */ |
| 749 | public function output_error( $error ) { |
| 750 | $error_response = $this->serializable_error( $error ); |
| 751 | |
| 752 | return $this->output( $error_response['status_code'], $error_response['errors'] ); |
| 753 | } |
| 754 | |
| 755 | /** |
| 756 | * Filter fields in a response. |
| 757 | * |
| 758 | * @param array|object $response Response. |
| 759 | * @return array|object Filtered response. |
| 760 | */ |
| 761 | public function filter_fields( $response ) { |
| 762 | if ( empty( $this->query['fields'] ) || ( is_array( $response ) && ! empty( $response['error'] ) ) || ! empty( $this->endpoint->custom_fields_filtering ) ) { |
| 763 | return $response; |
| 764 | } |
| 765 | |
| 766 | $fields = array_map( 'trim', explode( ',', $this->query['fields'] ) ); |
| 767 | |
| 768 | if ( is_object( $response ) ) { |
| 769 | $response = (array) $response; |
| 770 | } |
| 771 | |
| 772 | $has_filtered = false; |
| 773 | if ( is_array( $response ) && empty( $response['ID'] ) ) { |
| 774 | $keys_to_filter = array( |
| 775 | 'categories', |
| 776 | 'comments', |
| 777 | 'connections', |
| 778 | 'domains', |
| 779 | 'groups', |
| 780 | 'likes', |
| 781 | 'media', |
| 782 | 'notes', |
| 783 | 'posts', |
| 784 | 'services', |
| 785 | 'sites', |
| 786 | 'suggestions', |
| 787 | 'tags', |
| 788 | 'themes', |
| 789 | 'topics', |
| 790 | 'users', |
| 791 | ); |
| 792 | |
| 793 | foreach ( $keys_to_filter as $key_to_filter ) { |
| 794 | if ( ! isset( $response[ $key_to_filter ] ) || $has_filtered ) { |
| 795 | continue; |
| 796 | } |
| 797 | |
| 798 | foreach ( $response[ $key_to_filter ] as $key => $values ) { |
| 799 | if ( is_object( $values ) ) { |
| 800 | if ( is_object( $response[ $key_to_filter ] ) ) { |
| 801 | // phpcs:ignore Squiz.PHP.DisallowMultipleAssignments.Found -- False positive. |
| 802 | $response[ $key_to_filter ]->$key = (object) array_intersect_key( ( (array) $values ), array_flip( $fields ) ); |
| 803 | } elseif ( is_array( $response[ $key_to_filter ] ) ) { |
| 804 | $response[ $key_to_filter ][ $key ] = (object) array_intersect_key( ( (array) $values ), array_flip( $fields ) ); |
| 805 | } |
| 806 | } elseif ( is_array( $values ) ) { |
| 807 | $response[ $key_to_filter ][ $key ] = array_intersect_key( $values, array_flip( $fields ) ); |
| 808 | } |
| 809 | } |
| 810 | |
| 811 | $has_filtered = true; |
| 812 | } |
| 813 | } |
| 814 | |
| 815 | if ( ! $has_filtered ) { |
| 816 | if ( is_object( $response ) ) { |
| 817 | $response = (object) array_intersect_key( (array) $response, array_flip( $fields ) ); |
| 818 | } elseif ( is_array( $response ) ) { |
| 819 | $response = array_intersect_key( $response, array_flip( $fields ) ); |
| 820 | } |
| 821 | } |
| 822 | |
| 823 | return $response; |
| 824 | } |
| 825 | |
| 826 | /** |
| 827 | * Filter for `home_url`. |
| 828 | * |
| 829 | * If `$original_scheme` is null, turns an https URL to http. |
| 830 | * |
| 831 | * @param string $url The complete home URL including scheme and path. |
| 832 | * @param string $path Path relative to the home URL. Blank string if no path is specified. |
| 833 | * @param string|null $original_scheme Scheme to give the home URL context. Accepts 'http', 'https', 'relative', 'rest', or null. |
| 834 | * @return string URL. |
| 835 | */ |
| 836 | public function ensure_http_scheme_of_home_url( $url, $path, $original_scheme ) { |
| 837 | if ( $original_scheme ) { |
| 838 | return $url; |
| 839 | } |
| 840 | |
| 841 | return preg_replace( '#^https:#', 'http:', $url ); |
| 842 | } |
| 843 | |
| 844 | /** |
| 845 | * Decode HTML special characters in comment content. |
| 846 | * |
| 847 | * @param string $comment_content Comment content. |
| 848 | * @return string |
| 849 | */ |
| 850 | public function comment_edit_pre( $comment_content ) { |
| 851 | return htmlspecialchars_decode( $comment_content, ENT_QUOTES ); |
| 852 | } |
| 853 | |
| 854 | /** |
| 855 | * JSON encode. |
| 856 | * |
| 857 | * @param mixed $data Data. |
| 858 | * @return string|false |
| 859 | */ |
| 860 | public function json_encode( $data ) { |
| 861 | return wp_json_encode( $data ); |
| 862 | } |
| 863 | |
| 864 | /** |
| 865 | * Test if a string ends with a string. |
| 866 | * |
| 867 | * @param string $haystack String to check. |
| 868 | * @param string $needle Suffix to check. |
| 869 | * @return bool |
| 870 | */ |
| 871 | public function ends_with( $haystack, $needle ) { |
| 872 | return substr( $haystack, -strlen( $needle ) ) === $needle; |
| 873 | } |
| 874 | |
| 875 | /** |
| 876 | * Returns the site's blog_id in the WP.com ecosystem |
| 877 | * |
| 878 | * @return int |
| 879 | */ |
| 880 | public function get_blog_id_for_output() { |
| 881 | return $this->token_details['blog_id']; |
| 882 | } |
| 883 | |
| 884 | /** |
| 885 | * Returns the site's local blog_id. |
| 886 | * |
| 887 | * @param int $blog_id Blog ID. |
| 888 | * @return int |
| 889 | */ |
| 890 | public function get_blog_id( $blog_id ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 891 | return $GLOBALS['blog_id']; |
| 892 | } |
| 893 | |
| 894 | /** |
| 895 | * Switch to blog and validate user. |
| 896 | * |
| 897 | * @param int $blog_id Blog ID. |
| 898 | * @param bool $verify_token_for_blog Whether to verify the token. |
| 899 | * @return int Blog ID. |
| 900 | */ |
| 901 | public function switch_to_blog_and_validate_user( $blog_id = 0, $verify_token_for_blog = true ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 902 | if ( $this->is_restricted_blog( $blog_id ) ) { |
| 903 | return new WP_Error( 'unauthorized', 'User cannot access this restricted blog', 403 ); |
| 904 | } |
| 905 | /** |
| 906 | * If this is a private site we check for 2 things: |
| 907 | * 1. In case of user based authentication, we need to check if the logged-in user has the 'read' capability. |
| 908 | * 2. In case of site based authentication, make sure the endpoint accepts it. |
| 909 | */ |
| 910 | if ( -1 === (int) get_option( 'blog_public' ) && |
| 911 | ! current_user_can( 'read' ) && |
| 912 | ! $this->endpoint->accepts_site_based_authentication() |
| 913 | ) { |
| 914 | return new WP_Error( 'unauthorized', 'User cannot access this private blog.', 403 ); |
| 915 | } |
| 916 | |
| 917 | return $blog_id; |
| 918 | } |
| 919 | |
| 920 | /** |
| 921 | * Returns true if the specified blog ID is a restricted blog |
| 922 | * |
| 923 | * @param int $blog_id Blog ID. |
| 924 | * @return bool |
| 925 | */ |
| 926 | public function is_restricted_blog( $blog_id ) { |
| 927 | /** |
| 928 | * Filters all REST API access and return a 403 unauthorized response for all Restricted blog IDs. |
| 929 | * |
| 930 | * @module json-api |
| 931 | * |
| 932 | * @since 3.4.0 |
| 933 | * |
| 934 | * @param array $array Array of Blog IDs. |
| 935 | */ |
| 936 | $restricted_blog_ids = apply_filters( 'wpcom_json_api_restricted_blog_ids', array() ); |
| 937 | return true === in_array( $blog_id, $restricted_blog_ids ); // phpcs:ignore WordPress.PHP.StrictInArray.MissingTrueStrict -- I don't trust filters to return the right types. |
| 938 | } |
| 939 | |
| 940 | /** |
| 941 | * Post like count. |
| 942 | * |
| 943 | * @param int $blog_id Blog ID. |
| 944 | * @param int $post_id Post ID. |
| 945 | * @return int |
| 946 | */ |
| 947 | public function post_like_count( $blog_id, $post_id ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 948 | return 0; |
| 949 | } |
| 950 | |
| 951 | /** |
| 952 | * Is liked? |
| 953 | * |
| 954 | * @param int $blog_id Blog ID. |
| 955 | * @param int $post_id Post ID. |
| 956 | * @return bool |
| 957 | */ |
| 958 | public function is_liked( $blog_id, $post_id ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 959 | return false; |
| 960 | } |
| 961 | |
| 962 | /** |
| 963 | * Is reblogged? |
| 964 | * |
| 965 | * @param int $blog_id Blog ID. |
| 966 | * @param int $post_id Post ID. |
| 967 | * @return bool |
| 968 | */ |
| 969 | public function is_reblogged( $blog_id, $post_id ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 970 | return false; |
| 971 | } |
| 972 | |
| 973 | /** |
| 974 | * Is following? |
| 975 | * |
| 976 | * @param int $blog_id Blog ID. |
| 977 | * @return bool |
| 978 | */ |
| 979 | public function is_following( $blog_id ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 980 | return false; |
| 981 | } |
| 982 | |
| 983 | /** |
| 984 | * Add global ID. |
| 985 | * |
| 986 | * @param int $blog_id Blog ID. |
| 987 | * @param int $post_id Post ID. |
| 988 | * @return string |
| 989 | */ |
| 990 | public function add_global_ID( $blog_id, $post_id ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable, WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid |
| 991 | return ''; |
| 992 | } |
| 993 | |
| 994 | /** |
| 995 | * Get avatar URL. |
| 996 | * |
| 997 | * @param string $email Email. |
| 998 | * @param array $avatar_size Args for `get_avatar_url()`. |
| 999 | * @return string|false |
| 1000 | */ |
| 1001 | public function get_avatar_url( $email, $avatar_size = null ) { |
| 1002 | if ( function_exists( 'wpcom_get_avatar_url' ) ) { |
| 1003 | return null === $avatar_size |
| 1004 | ? wpcom_get_avatar_url( $email ) |
| 1005 | : wpcom_get_avatar_url( $email, $avatar_size ); |
| 1006 | } else { |
| 1007 | return null === $avatar_size |
| 1008 | ? get_avatar_url( $email ) |
| 1009 | : get_avatar_url( $email, $avatar_size ); |
| 1010 | } |
| 1011 | } |
| 1012 | |
| 1013 | /** |
| 1014 | * Counts the number of comments on a site, including certain comment types. |
| 1015 | * |
| 1016 | * @param int $post_id Post ID. |
| 1017 | * @return array Array of counts, matching the output of https://developer.wordpress.org/reference/functions/get_comment_count/. |
| 1018 | */ |
| 1019 | public function wp_count_comments( $post_id ) { |
| 1020 | global $wpdb; |
| 1021 | if ( 0 !== $post_id ) { |
| 1022 | return wp_count_comments( $post_id ); |
| 1023 | } |
| 1024 | |
| 1025 | $counts = array( |
| 1026 | 'total_comments' => 0, |
| 1027 | 'all' => 0, |
| 1028 | ); |
| 1029 | |
| 1030 | /** |
| 1031 | * Exclude certain comment types from comment counts in the REST API. |
| 1032 | * |
| 1033 | * @since 6.9.0 |
| 1034 | * @deprecated 11.1 |
| 1035 | * @module json-api |
| 1036 | * |
| 1037 | * @param array Array of comment types to exclude (default: 'order_note', 'webhook_delivery', 'review', 'action_log') |
| 1038 | */ |
| 1039 | $exclude = apply_filters_deprecated( 'jetpack_api_exclude_comment_types_count', array( 'order_note', 'webhook_delivery', 'review', 'action_log' ), 'jetpack-11.1', 'jetpack_api_include_comment_types_count' ); // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 1040 | |
| 1041 | /** |
| 1042 | * Include certain comment types in comment counts in the REST API. |
| 1043 | * Note: the default array of comment types includes an empty string, |
| 1044 | * to support comments posted before WP 5.5, that used an empty string as comment type. |
| 1045 | * |
| 1046 | * @since 11.1 |
| 1047 | * @module json-api |
| 1048 | * |
| 1049 | * @param array Array of comment types to include (default: 'comment', 'pingback', 'trackback') |
| 1050 | */ |
| 1051 | $include = apply_filters( |
| 1052 | 'jetpack_api_include_comment_types_count', |
| 1053 | array( 'comment', 'pingback', 'trackback', '' ) |
| 1054 | ); |
| 1055 | |
| 1056 | if ( empty( $include ) ) { |
| 1057 | return wp_count_comments( $post_id ); |
| 1058 | } |
| 1059 | |
| 1060 | array_walk( $include, 'esc_sql' ); |
| 1061 | $where = sprintf( |
| 1062 | "WHERE comment_type IN ( '%s' )", |
| 1063 | implode( "','", $include ) |
| 1064 | ); |
| 1065 | |
| 1066 | // phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared -- `$where` is built with escaping just above. |
| 1067 | $count = $wpdb->get_results( |
| 1068 | "SELECT comment_approved, COUNT(*) AS num_comments |
| 1069 | FROM $wpdb->comments |
| 1070 | {$where} |
| 1071 | GROUP BY comment_approved |
| 1072 | " |
| 1073 | ); |
| 1074 | // phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 1075 | |
| 1076 | $approved = array( |
| 1077 | '0' => 'moderated', |
| 1078 | '1' => 'approved', |
| 1079 | 'spam' => 'spam', |
| 1080 | 'trash' => 'trash', |
| 1081 | 'post-trashed' => 'post-trashed', |
| 1082 | ); |
| 1083 | |
| 1084 | // <https://developer.wordpress.org/reference/functions/get_comment_count/#source> |
| 1085 | foreach ( $count as $row ) { |
| 1086 | if ( ! in_array( $row->comment_approved, array( 'post-trashed', 'trash', 'spam' ), true ) ) { |
| 1087 | $counts['all'] += $row->num_comments; |
| 1088 | $counts['total_comments'] += $row->num_comments; |
| 1089 | } elseif ( ! in_array( $row->comment_approved, array( 'post-trashed', 'trash' ), true ) ) { |
| 1090 | $counts['total_comments'] += $row->num_comments; |
| 1091 | } |
| 1092 | if ( isset( $approved[ $row->comment_approved ] ) ) { |
| 1093 | $counts[ $approved[ $row->comment_approved ] ] = $row->num_comments; |
| 1094 | } |
| 1095 | } |
| 1096 | |
| 1097 | foreach ( $approved as $key ) { |
| 1098 | if ( empty( $counts[ $key ] ) ) { |
| 1099 | $counts[ $key ] = 0; |
| 1100 | } |
| 1101 | } |
| 1102 | |
| 1103 | $counts = (object) $counts; |
| 1104 | |
| 1105 | return $counts; |
| 1106 | } |
| 1107 | |
| 1108 | /** |
| 1109 | * Traps `wp_die()` calls and outputs a JSON response instead. |
| 1110 | * The result is always output, never returned. |
| 1111 | * |
| 1112 | * @param string|null $error_code Call with string to start the trapping. Call with null to stop. |
| 1113 | * @param int $http_status HTTP status code, 400 by default. |
| 1114 | */ |
| 1115 | public function trap_wp_die( $error_code = null, $http_status = 400 ) { |
| 1116 | // Determine the filter name; based on the conditionals inside the wp_die function. |
| 1117 | if ( wp_is_json_request() ) { |
| 1118 | $die_handler = 'wp_die_json_handler'; |
| 1119 | } elseif ( wp_is_jsonp_request() ) { |
| 1120 | $die_handler = 'wp_die_jsonp_handler'; |
| 1121 | } elseif ( wp_is_xml_request() ) { |
| 1122 | $die_handler = 'wp_die_xml_handler'; |
| 1123 | } else { |
| 1124 | $die_handler = 'wp_die_handler'; |
| 1125 | } |
| 1126 | |
| 1127 | if ( $error_code === null ) { |
| 1128 | $this->trapped_error = null; |
| 1129 | // Stop trapping. |
| 1130 | remove_filter( $die_handler, array( $this, 'wp_die_handler_callback' ) ); |
| 1131 | return; |
| 1132 | } |
| 1133 | |
| 1134 | // If API called via PHP, bail: don't do our custom wp_die(). Do the normal wp_die(). |
| 1135 | if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) { |
| 1136 | if ( ! defined( 'REST_API_REQUEST' ) || ! REST_API_REQUEST ) { |
| 1137 | return; |
| 1138 | } |
| 1139 | } else { |
| 1140 | if ( ! defined( 'XMLRPC_REQUEST' ) || ! XMLRPC_REQUEST ) { |
| 1141 | return; |
| 1142 | } |
| 1143 | } |
| 1144 | |
| 1145 | $this->trapped_error = array( |
| 1146 | 'status' => $http_status, |
| 1147 | 'code' => $error_code, |
| 1148 | 'message' => '', |
| 1149 | ); |
| 1150 | // Start trapping. |
| 1151 | add_filter( $die_handler, array( $this, 'wp_die_handler_callback' ) ); |
| 1152 | } |
| 1153 | |
| 1154 | /** |
| 1155 | * Filter function for `wp_die_handler` and similar filters. |
| 1156 | * |
| 1157 | * @return callable |
| 1158 | */ |
| 1159 | public function wp_die_handler_callback() { |
| 1160 | return array( $this, 'wp_die_handler' ); |
| 1161 | } |
| 1162 | |
| 1163 | /** |
| 1164 | * Handler for `wp_die` calls. |
| 1165 | * |
| 1166 | * @param string|WP_Error $message As for `wp_die()`. |
| 1167 | * @param string|int $title As for `wp_die()`. |
| 1168 | * @param string|array|int $args As for `wp_die()`. |
| 1169 | */ |
| 1170 | public function wp_die_handler( $message, $title = '', $args = array() ) { |
| 1171 | // Allow wp_die calls to override HTTP status code... |
| 1172 | $args = wp_parse_args( |
| 1173 | $args, |
| 1174 | array( |
| 1175 | 'response' => $this->trapped_error['status'], |
| 1176 | ) |
| 1177 | ); |
| 1178 | |
| 1179 | // ... unless it's 500 |
| 1180 | if ( 500 !== (int) $args['response'] ) { |
| 1181 | $this->trapped_error['status'] = $args['response']; |
| 1182 | } |
| 1183 | |
| 1184 | if ( $title ) { |
| 1185 | $message = "$title: $message"; |
| 1186 | } |
| 1187 | |
| 1188 | $this->trapped_error['message'] = wp_kses( $message, array() ); |
| 1189 | |
| 1190 | switch ( $this->trapped_error['code'] ) { |
| 1191 | case 'comment_failure': |
| 1192 | if ( did_action( 'comment_duplicate_trigger' ) ) { |
| 1193 | $this->trapped_error['code'] = 'comment_duplicate'; |
| 1194 | } elseif ( did_action( 'comment_flood_trigger' ) ) { |
| 1195 | $this->trapped_error['code'] = 'comment_flood'; |
| 1196 | } |
| 1197 | break; |
| 1198 | } |
| 1199 | |
| 1200 | // We still want to exit so that code execution stops where it should. |
| 1201 | // Attach the JSON output to the WordPress shutdown handler. |
| 1202 | add_action( 'shutdown', array( $this, 'output_trapped_error' ), 0 ); |
| 1203 | exit; |
| 1204 | } |
| 1205 | |
| 1206 | /** |
| 1207 | * Output the trapped error. |
| 1208 | */ |
| 1209 | public function output_trapped_error() { |
| 1210 | $this->exit = false; // We're already exiting once. Don't do it twice. |
| 1211 | $this->output( |
| 1212 | $this->trapped_error['status'], |
| 1213 | (object) array( |
| 1214 | 'error' => $this->trapped_error['code'], |
| 1215 | 'message' => $this->trapped_error['message'], |
| 1216 | ) |
| 1217 | ); |
| 1218 | } |
| 1219 | |
| 1220 | /** |
| 1221 | * Finish the request. |
| 1222 | */ |
| 1223 | public function finish_request() { |
| 1224 | if ( function_exists( 'fastcgi_finish_request' ) ) { |
| 1225 | return fastcgi_finish_request(); |
| 1226 | } |
| 1227 | } |
| 1228 | } |
| 1229 |