class.json-api.php
| 1 | <?php |
| 2 | |
| 3 | defined( 'WPCOM_JSON_API__DEBUG' ) or define( 'WPCOM_JSON_API__DEBUG', false ); |
| 4 | |
| 5 | class WPCOM_JSON_API { |
| 6 | static $self = null; |
| 7 | |
| 8 | var $endpoints = array(); |
| 9 | |
| 10 | var $token_details = array(); |
| 11 | |
| 12 | var $method = ''; |
| 13 | var $url = ''; |
| 14 | var $path = ''; |
| 15 | var $version = null; |
| 16 | var $query = array(); |
| 17 | var $post_body = null; |
| 18 | var $files = null; |
| 19 | var $content_type = null; |
| 20 | var $accept = ''; |
| 21 | |
| 22 | var $_server_https; |
| 23 | var $exit = true; |
| 24 | var $public_api_scheme = 'https'; |
| 25 | |
| 26 | var $output_status_code = 200; |
| 27 | |
| 28 | var $trapped_error = null; |
| 29 | var $did_output = false; |
| 30 | |
| 31 | /** |
| 32 | * @return WPCOM_JSON_API instance |
| 33 | */ |
| 34 | static function init( $method = null, $url = null, $post_body = null ) { |
| 35 | if ( !self::$self ) { |
| 36 | $class = function_exists( 'get_called_class' ) ? get_called_class() : __CLASS__; |
| 37 | self::$self = new $class( $method, $url, $post_body ); |
| 38 | } |
| 39 | return self::$self; |
| 40 | } |
| 41 | |
| 42 | function add( WPCOM_JSON_API_Endpoint $endpoint ) { |
| 43 | $path_versions = serialize( array ( |
| 44 | $endpoint->path, |
| 45 | $endpoint->min_version, |
| 46 | $endpoint->max_version, |
| 47 | ) ); |
| 48 | if ( !isset( $this->endpoints[$path_versions] ) ) { |
| 49 | $this->endpoints[$path_versions] = array(); |
| 50 | } |
| 51 | $this->endpoints[$path_versions][$endpoint->method] = $endpoint; |
| 52 | } |
| 53 | |
| 54 | static function is_truthy( $value ) { |
| 55 | switch ( strtolower( (string) $value ) ) { |
| 56 | case '1' : |
| 57 | case 't' : |
| 58 | case 'true' : |
| 59 | return true; |
| 60 | } |
| 61 | |
| 62 | return false; |
| 63 | } |
| 64 | |
| 65 | static function is_falsy( $value ) { |
| 66 | switch ( strtolower( (string) $value ) ) { |
| 67 | case '0' : |
| 68 | case 'f' : |
| 69 | case 'false' : |
| 70 | return true; |
| 71 | } |
| 72 | |
| 73 | return false; |
| 74 | } |
| 75 | |
| 76 | function __construct() { |
| 77 | $args = func_get_args(); |
| 78 | call_user_func_array( array( $this, 'setup_inputs' ), $args ); |
| 79 | } |
| 80 | |
| 81 | function setup_inputs( $method = null, $url = null, $post_body = null ) { |
| 82 | if ( is_null( $method ) ) { |
| 83 | $this->method = strtoupper( $_SERVER['REQUEST_METHOD'] ); |
| 84 | } else { |
| 85 | $this->method = strtoupper( $method ); |
| 86 | } |
| 87 | if ( is_null( $url ) ) { |
| 88 | $this->url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); |
| 89 | } else { |
| 90 | $this->url = $url; |
| 91 | } |
| 92 | |
| 93 | $parsed = parse_url( $this->url ); |
| 94 | $this->path = $parsed['path']; |
| 95 | |
| 96 | if ( !empty( $parsed['query'] ) ) { |
| 97 | wp_parse_str( $parsed['query'], $this->query ); |
| 98 | } |
| 99 | |
| 100 | if ( isset( $_SERVER['HTTP_ACCEPT'] ) && $_SERVER['HTTP_ACCEPT'] ) { |
| 101 | $this->accept = $_SERVER['HTTP_ACCEPT']; |
| 102 | } |
| 103 | |
| 104 | if ( 'POST' === $this->method ) { |
| 105 | if ( is_null( $post_body ) ) { |
| 106 | $this->post_body = file_get_contents( 'php://input' ); |
| 107 | |
| 108 | if ( isset( $_SERVER['HTTP_CONTENT_TYPE'] ) && $_SERVER['HTTP_CONTENT_TYPE'] ) { |
| 109 | $this->content_type = $_SERVER['HTTP_CONTENT_TYPE']; |
| 110 | } elseif ( isset( $_SERVER['CONTENT_TYPE'] ) && $_SERVER['CONTENT_TYPE'] ) { |
| 111 | $this->content_type = $_SERVER['CONTENT_TYPE'] ; |
| 112 | } elseif ( '{' === $this->post_body[0] ) { |
| 113 | $this->content_type = 'application/json'; |
| 114 | } else { |
| 115 | $this->content_type = 'application/x-www-form-urlencoded'; |
| 116 | } |
| 117 | |
| 118 | if ( 0 === strpos( strtolower( $this->content_type ), 'multipart/' ) ) { |
| 119 | $this->post_body = http_build_query( stripslashes_deep( $_POST ) ); |
| 120 | $this->files = $_FILES; |
| 121 | $this->content_type = 'multipart/form-data'; |
| 122 | } |
| 123 | } else { |
| 124 | $this->post_body = $post_body; |
| 125 | $this->content_type = '{' === isset( $this->post_body[0] ) && $this->post_body[0] ? 'application/json' : 'application/x-www-form-urlencoded'; |
| 126 | } |
| 127 | } else { |
| 128 | $this->post_body = null; |
| 129 | $this->content_type = null; |
| 130 | } |
| 131 | |
| 132 | $this->_server_https = array_key_exists( 'HTTPS', $_SERVER ) ? $_SERVER['HTTPS'] : '--UNset--'; |
| 133 | } |
| 134 | |
| 135 | function initialize() { |
| 136 | $this->token_details['blog_id'] = Jetpack_Options::get_option( 'id' ); |
| 137 | } |
| 138 | |
| 139 | function serve( $exit = true ) { |
| 140 | ini_set( 'display_errors', false ); |
| 141 | |
| 142 | $this->exit = (bool) $exit; |
| 143 | |
| 144 | add_filter( 'home_url', array( $this, 'ensure_http_scheme_of_home_url' ), 10, 3 ); |
| 145 | |
| 146 | add_filter( 'user_can_richedit', '__return_true' ); |
| 147 | |
| 148 | add_filter( 'comment_edit_pre', array( $this, 'comment_edit_pre' ) ); |
| 149 | |
| 150 | $initialization = $this->initialize(); |
| 151 | if ( 'OPTIONS' == $this->method ) { |
| 152 | do_action( 'wpcom_json_api_options' ); |
| 153 | return $this->output( 200, '', 'plain/text' ); |
| 154 | } |
| 155 | |
| 156 | if ( is_wp_error( $initialization ) ) { |
| 157 | $this->output_error( $initialization ); |
| 158 | return; |
| 159 | } |
| 160 | |
| 161 | // Normalize path and extract API version |
| 162 | $this->path = untrailingslashit( $this->path ); |
| 163 | preg_match( '#^/rest/v(\d+(\.\d+)*)#', $this->path, $matches ); |
| 164 | $this->path = substr( $this->path, strlen( $matches[0] ) ); |
| 165 | $this->version = $matches[1]; |
| 166 | |
| 167 | $allowed_methods = array( 'GET', 'POST' ); |
| 168 | $four_oh_five = false; |
| 169 | |
| 170 | $is_help = preg_match( '#/help/?$#i', $this->path ); |
| 171 | $matching_endpoints = array(); |
| 172 | |
| 173 | if ( $is_help ) { |
| 174 | $origin = get_http_origin(); |
| 175 | |
| 176 | if ( !empty( $origin ) && 'GET' == $this->method ) { |
| 177 | header( 'Access-Control-Allow-Origin: ' . esc_url_raw( $origin ) ); |
| 178 | } |
| 179 | |
| 180 | $this->path = substr( rtrim( $this->path, '/' ), 0, -5 ); |
| 181 | // Show help for all matching endpoints regardless of method |
| 182 | $methods = $allowed_methods; |
| 183 | $find_all_matching_endpoints = true; |
| 184 | // How deep to truncate each endpoint's path to see if it matches this help request |
| 185 | $depth = substr_count( $this->path, '/' ) + 1; |
| 186 | if ( false !== stripos( $this->accept, 'javascript' ) || false !== stripos( $this->accept, 'json' ) ) { |
| 187 | $help_content_type = 'json'; |
| 188 | } else { |
| 189 | $help_content_type = 'html'; |
| 190 | } |
| 191 | } else { |
| 192 | if ( in_array( $this->method, $allowed_methods ) ) { |
| 193 | // Only serve requested method |
| 194 | $methods = array( $this->method ); |
| 195 | $find_all_matching_endpoints = false; |
| 196 | } else { |
| 197 | // We don't allow this requested method - find matching endpoints and send 405 |
| 198 | $methods = $allowed_methods; |
| 199 | $find_all_matching_endpoints = true; |
| 200 | $four_oh_five = true; |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | // Find which endpoint to serve |
| 205 | $found = false; |
| 206 | foreach ( $this->endpoints as $endpoint_path_versions => $endpoints_by_method ) { |
| 207 | $endpoint_path_versions = unserialize( $endpoint_path_versions ); |
| 208 | $endpoint_path = $endpoint_path_versions[0]; |
| 209 | $endpoint_min_version = $endpoint_path_versions[1]; |
| 210 | $endpoint_max_version = $endpoint_path_versions[2]; |
| 211 | |
| 212 | // Make sure max_version is not less than min_version |
| 213 | if ( version_compare( $endpoint_max_version, $endpoint_min_version, '<' ) ) { |
| 214 | $endpoint_max_version = $endpoint_min_version; |
| 215 | } |
| 216 | |
| 217 | foreach ( $methods as $method ) { |
| 218 | if ( !isset( $endpoints_by_method[$method] ) ) { |
| 219 | continue; |
| 220 | } |
| 221 | |
| 222 | // Normalize |
| 223 | $endpoint_path = untrailingslashit( $endpoint_path ); |
| 224 | if ( $is_help ) { |
| 225 | // Truncate path at help depth |
| 226 | $endpoint_path = join( '/', array_slice( explode( '/', $endpoint_path ), 0, $depth ) ); |
| 227 | } |
| 228 | |
| 229 | // Generate regular expression from sprintf() |
| 230 | $endpoint_path_regex = str_replace( array( '%s', '%d' ), array( '([^/?&]+)', '(\d+)' ), $endpoint_path ); |
| 231 | |
| 232 | if ( !preg_match( "#^$endpoint_path_regex\$#", $this->path, $path_pieces ) ) { |
| 233 | // This endpoint does not match the requested path. |
| 234 | continue; |
| 235 | } |
| 236 | |
| 237 | if ( version_compare( $this->version, $endpoint_min_version, '<' ) || version_compare( $this->version, $endpoint_max_version, '>' ) ) { |
| 238 | // This endpoint does not match the requested version. |
| 239 | continue; |
| 240 | } |
| 241 | |
| 242 | $found = true; |
| 243 | |
| 244 | if ( $find_all_matching_endpoints ) { |
| 245 | $matching_endpoints[] = array( $endpoints_by_method[$method], $path_pieces ); |
| 246 | } else { |
| 247 | // The method parameters are now in $path_pieces |
| 248 | $endpoint = $endpoints_by_method[$method]; |
| 249 | break 2; |
| 250 | } |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | if ( !$found ) { |
| 255 | return $this->output( 404, '', 'text/plain' ); |
| 256 | } |
| 257 | |
| 258 | if ( $four_oh_five ) { |
| 259 | $allowed_methods = array(); |
| 260 | foreach ( $matching_endpoints as $matching_endpoint ) { |
| 261 | $allowed_methods[] = $matching_endpoint[0]->method; |
| 262 | } |
| 263 | |
| 264 | header( 'Allow: ' . strtoupper( join( ',', array_unique( $allowed_methods ) ) ) ); |
| 265 | return $this->output( 405, array( 'error' => 'not_allowed', 'error_message' => 'Method not allowed' ) ); |
| 266 | } |
| 267 | |
| 268 | if ( $is_help ) { |
| 269 | do_action( 'wpcom_json_api_output', 'help' ); |
| 270 | if ( 'json' === $help_content_type ) { |
| 271 | $docs = array(); |
| 272 | foreach ( $matching_endpoints as $matching_endpoint ) { |
| 273 | if ( $matching_endpoint[0]->is_publicly_documentable() || WPCOM_JSON_API__DEBUG ) |
| 274 | $docs[] = call_user_func( array( $matching_endpoint[0], 'generate_documentation' ) ); |
| 275 | } |
| 276 | return $this->output( 200, $docs ); |
| 277 | } else { |
| 278 | status_header( 200 ); |
| 279 | foreach ( $matching_endpoints as $matching_endpoint ) { |
| 280 | if ( $matching_endpoint[0]->is_publicly_documentable() || WPCOM_JSON_API__DEBUG ) |
| 281 | call_user_func( array( $matching_endpoint[0], 'document' ) ); |
| 282 | } |
| 283 | } |
| 284 | exit; |
| 285 | } |
| 286 | |
| 287 | if ( $endpoint->in_testing && !WPCOM_JSON_API__DEBUG ) { |
| 288 | return $this->output( 404, '', 'text/plain' ); |
| 289 | } |
| 290 | |
| 291 | do_action( 'wpcom_json_api_output', $endpoint->stat ); |
| 292 | |
| 293 | $response = $this->process_request( $endpoint, $path_pieces ); |
| 294 | |
| 295 | if ( !$response && !is_array( $response ) ) { |
| 296 | return $this->output( 500, '', 'text/plain' ); |
| 297 | } elseif ( is_wp_error( $response ) ) { |
| 298 | return $this->output_error( $response ); |
| 299 | } |
| 300 | |
| 301 | $output_status_code = $this->output_status_code; |
| 302 | $this->set_output_status_code(); |
| 303 | |
| 304 | return $this->output( $output_status_code, $response ); |
| 305 | } |
| 306 | |
| 307 | function process_request( WPCOM_JSON_API_Endpoint $endpoint, $path_pieces ) { |
| 308 | $this->endpoint = $endpoint; |
| 309 | return call_user_func_array( array( $endpoint, 'callback' ), $path_pieces ); |
| 310 | } |
| 311 | |
| 312 | function output_early( $status_code, $response = null, $content_type = 'application/json' ) { |
| 313 | $exit = $this->exit; |
| 314 | $this->exit = false; |
| 315 | if ( is_wp_error( $response ) ) |
| 316 | $this->output_error( $response ); |
| 317 | else |
| 318 | $this->output( $status_code, $response, $content_type ); |
| 319 | $this->exit = $exit; |
| 320 | $this->finish_request(); |
| 321 | } |
| 322 | |
| 323 | function set_output_status_code( $code = 200 ) { |
| 324 | $this->output_status_code = $code; |
| 325 | } |
| 326 | |
| 327 | function output( $status_code, $response = null, $content_type = 'application/json' ) { |
| 328 | // In case output() was called before the callback returned |
| 329 | if ( $this->did_output ) { |
| 330 | if ( $this->exit ) |
| 331 | exit; |
| 332 | return $content_type; |
| 333 | } |
| 334 | $this->did_output = true; |
| 335 | |
| 336 | // 400s and 404s are allowed for all origins |
| 337 | if ( 404 == $status_code || 400 == $status_code ) |
| 338 | header( 'Access-Control-Allow-Origin: *' ); |
| 339 | |
| 340 | if ( is_null( $response ) ) { |
| 341 | $response = new stdClass; |
| 342 | } |
| 343 | |
| 344 | if ( 'text/plain' === $content_type ) { |
| 345 | status_header( (int) $status_code ); |
| 346 | header( 'Content-Type: text/plain' ); |
| 347 | echo $response; |
| 348 | if ( $this->exit ) { |
| 349 | exit; |
| 350 | } |
| 351 | |
| 352 | return $content_type; |
| 353 | } |
| 354 | |
| 355 | $response = $this->filter_fields( $response ); |
| 356 | |
| 357 | if ( isset( $this->query['http_envelope'] ) && self::is_truthy( $this->query['http_envelope'] ) ) { |
| 358 | $response = array( |
| 359 | 'code' => (int) $status_code, |
| 360 | 'headers' => array( |
| 361 | array( |
| 362 | 'name' => 'Content-Type', |
| 363 | 'value' => $content_type, |
| 364 | ), |
| 365 | ), |
| 366 | 'body' => $response, |
| 367 | ); |
| 368 | $status_code = 200; |
| 369 | $content_type = 'application/json'; |
| 370 | } |
| 371 | |
| 372 | status_header( (int) $status_code ); |
| 373 | header( "Content-Type: $content_type" ); |
| 374 | if ( isset( $this->query['callback'] ) && is_string( $this->query['callback'] ) ) { |
| 375 | $callback = preg_replace( '/[^a-z0-9_.]/i', '', $this->query['callback'] ); |
| 376 | } else { |
| 377 | $callback = false; |
| 378 | } |
| 379 | |
| 380 | if ( $callback ) { |
| 381 | // Mitigate Rosetta Flash [1] by setting the Content-Type-Options: nosniff header |
| 382 | // and by prepending the JSONP response with a JS comment. |
| 383 | // [1] http://miki.it/blog/2014/7/8/abusing-jsonp-with-rosetta-flash/ |
| 384 | echo "/**/$callback("; |
| 385 | |
| 386 | } |
| 387 | echo $this->json_encode( $response ); |
| 388 | if ( $callback ) { |
| 389 | echo ");"; |
| 390 | } |
| 391 | |
| 392 | if ( $this->exit ) { |
| 393 | exit; |
| 394 | } |
| 395 | |
| 396 | return $content_type; |
| 397 | } |
| 398 | |
| 399 | public static function serializable_error ( $error ) { |
| 400 | |
| 401 | $status_code = $error->get_error_data(); |
| 402 | |
| 403 | if ( is_array( $status_code ) ) |
| 404 | $status_code = $status_code['status_code']; |
| 405 | |
| 406 | if ( !$status_code ) { |
| 407 | $status_code = 400; |
| 408 | } |
| 409 | $response = array( |
| 410 | 'error' => $error->get_error_code(), |
| 411 | 'message' => $error->get_error_message(), |
| 412 | ); |
| 413 | return array( |
| 414 | 'status_code' => $status_code, |
| 415 | 'errors' => $response |
| 416 | ); |
| 417 | } |
| 418 | |
| 419 | function output_error( $error ) { |
| 420 | if ( function_exists( 'bump_stats_extra' ) ) { |
| 421 | $client_id = ! empty( $this->token_details['client_id'] ) ? $this->token_details['client_id'] : 0; |
| 422 | bump_stats_extra( 'rest-api-errors', $client_id ); |
| 423 | } |
| 424 | |
| 425 | $error_response = $this->serializable_error( $error ); |
| 426 | |
| 427 | return $this->output( $error_response[ 'status_code'], $error_response['errors'] ); |
| 428 | } |
| 429 | |
| 430 | function filter_fields( $response ) { |
| 431 | if ( empty( $this->query['fields'] ) || ( is_array( $response ) && ! empty( $response['error'] ) ) || ! empty( $this->endpoint->custom_fields_filtering ) ) |
| 432 | return $response; |
| 433 | |
| 434 | $fields = array_map( 'trim', explode( ',', $this->query['fields'] ) ); |
| 435 | |
| 436 | if ( is_object( $response ) ) { |
| 437 | $response = (array) $response; |
| 438 | } |
| 439 | |
| 440 | $has_filtered = false; |
| 441 | if ( is_array( $response ) && empty( $response['ID'] ) ) { |
| 442 | $keys_to_filter = array( |
| 443 | 'categories', |
| 444 | 'comments', |
| 445 | 'connections', |
| 446 | 'domains', |
| 447 | 'groups', |
| 448 | 'likes', |
| 449 | 'media', |
| 450 | 'notes', |
| 451 | 'posts', |
| 452 | 'services', |
| 453 | 'sites', |
| 454 | 'suggestions', |
| 455 | 'tags', |
| 456 | 'themes', |
| 457 | 'topics', |
| 458 | 'users', |
| 459 | ); |
| 460 | |
| 461 | foreach ( $keys_to_filter as $key_to_filter ) { |
| 462 | if ( ! isset( $response[ $key_to_filter ] ) || $has_filtered ) |
| 463 | continue; |
| 464 | |
| 465 | foreach ( $response[ $key_to_filter ] as $key => $values ) { |
| 466 | if ( is_object( $values ) ) { |
| 467 | $response[ $key_to_filter ][ $key ] = (object) array_intersect_key( (array) $values, array_flip( $fields ) ); |
| 468 | } elseif ( is_array( $values ) ) { |
| 469 | $response[ $key_to_filter ][ $key ] = array_intersect_key( $values, array_flip( $fields ) ); |
| 470 | } |
| 471 | } |
| 472 | |
| 473 | $has_filtered = true; |
| 474 | } |
| 475 | } |
| 476 | |
| 477 | if ( ! $has_filtered ) { |
| 478 | if ( is_object( $response ) ) { |
| 479 | $response = (object) array_intersect_key( (array) $response, array_flip( $fields ) ); |
| 480 | } else if ( is_array( $response ) ) { |
| 481 | $response = array_intersect_key( $response, array_flip( $fields ) ); |
| 482 | } |
| 483 | } |
| 484 | |
| 485 | return $response; |
| 486 | } |
| 487 | |
| 488 | function ensure_http_scheme_of_home_url( $url, $path, $original_scheme ) { |
| 489 | if ( $original_scheme ) { |
| 490 | return $url; |
| 491 | } |
| 492 | |
| 493 | return preg_replace( '#^https:#', 'http:', $url ); |
| 494 | } |
| 495 | |
| 496 | function comment_edit_pre( $comment_content ) { |
| 497 | return htmlspecialchars_decode( $comment_content, ENT_QUOTES ); |
| 498 | } |
| 499 | |
| 500 | function json_encode( $data ) { |
| 501 | return json_encode( $data ); |
| 502 | } |
| 503 | |
| 504 | function ends_with( $haystack, $needle ) { |
| 505 | return $needle === substr( $haystack, -strlen( $needle ) ); |
| 506 | } |
| 507 | |
| 508 | // Returns the site's blog_id in the WP.com ecosystem |
| 509 | function get_blog_id_for_output() { |
| 510 | return $this->token_details['blog_id']; |
| 511 | } |
| 512 | |
| 513 | // Returns the site's local blog_id |
| 514 | function get_blog_id( $blog_id ) { |
| 515 | return $GLOBALS['blog_id']; |
| 516 | } |
| 517 | |
| 518 | function switch_to_blog_and_validate_user( $blog_id = 0, $verify_token_for_blog = true ) { |
| 519 | if ( $this->is_restricted_blog( $blog_id ) ) { |
| 520 | return new WP_Error( 'unauthorized', 'User cannot access this restricted blog', 403 ); |
| 521 | } |
| 522 | |
| 523 | if ( -1 == get_option( 'blog_public' ) && !current_user_can( 'read' ) ) { |
| 524 | return new WP_Error( 'unauthorized', 'User cannot access this private blog.', 403 ); |
| 525 | } |
| 526 | |
| 527 | return $blog_id; |
| 528 | } |
| 529 | |
| 530 | // Returns true if the specified blog ID is a restricted blog |
| 531 | function is_restricted_blog( $blog_id ) { |
| 532 | $restricted_blog_ids = apply_filters( 'wpcom_json_api_restricted_blog_ids', array() ); |
| 533 | return true === in_array( $blog_id, $restricted_blog_ids ); |
| 534 | } |
| 535 | |
| 536 | function post_like_count( $blog_id, $post_id ) { |
| 537 | return 0; |
| 538 | } |
| 539 | |
| 540 | function is_liked( $blog_id, $post_id ) { |
| 541 | return false; |
| 542 | } |
| 543 | |
| 544 | function is_reblogged( $blog_id, $post_id ) { |
| 545 | return false; |
| 546 | } |
| 547 | |
| 548 | function is_following( $blog_id ) { |
| 549 | return false; |
| 550 | } |
| 551 | |
| 552 | function add_global_ID( $blog_id, $post_id ) { |
| 553 | return ''; |
| 554 | } |
| 555 | |
| 556 | function get_avatar_url( $email, $avatar_size = 96 ) { |
| 557 | add_filter( 'pre_option_show_avatars', '__return_true', 999 ); |
| 558 | $_SERVER['HTTPS'] = 'off'; |
| 559 | |
| 560 | $avatar_img_element = get_avatar( $email, $avatar_size, '' ); |
| 561 | |
| 562 | if ( !$avatar_img_element || is_wp_error( $avatar_img_element ) ) { |
| 563 | $return = ''; |
| 564 | } elseif ( !preg_match( '#src=([\'"])?(.*?)(?(1)\\1|\s)#', $avatar_img_element, $matches ) ) { |
| 565 | $return = ''; |
| 566 | } else { |
| 567 | $return = esc_url_raw( htmlspecialchars_decode( $matches[2] ) ); |
| 568 | } |
| 569 | |
| 570 | remove_filter( 'pre_option_show_avatars', '__return_true', 999 ); |
| 571 | if ( '--UNset--' === $this->_server_https ) { |
| 572 | unset( $_SERVER['HTTPS'] ); |
| 573 | } else { |
| 574 | $_SERVER['HTTPS'] = $this->_server_https; |
| 575 | } |
| 576 | |
| 577 | return $return; |
| 578 | } |
| 579 | |
| 580 | /** |
| 581 | * Traps `wp_die()` calls and outputs a JSON response instead. |
| 582 | * The result is always output, never returned. |
| 583 | * |
| 584 | * @param string|null $error_code. Call with string to start the trapping. Call with null to stop. |
| 585 | */ |
| 586 | function trap_wp_die( $error_code = null ) { |
| 587 | // Stop trapping |
| 588 | if ( is_null( $error_code ) ) { |
| 589 | $this->trapped_error = null; |
| 590 | remove_filter( 'wp_die_handler', array( $this, 'wp_die_handler_callback' ) ); |
| 591 | return; |
| 592 | } |
| 593 | |
| 594 | // If API called via PHP, bail: don't do our custom wp_die(). Do the normal wp_die(). |
| 595 | if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) { |
| 596 | if ( ! defined( 'REST_API_REQUEST' ) || ! REST_API_REQUEST ) { |
| 597 | return; |
| 598 | } |
| 599 | } else { |
| 600 | if ( ! defined( 'XMLRPC_REQUEST' ) || ! XMLRPC_REQUEST ) { |
| 601 | return; |
| 602 | } |
| 603 | } |
| 604 | |
| 605 | // Start trapping |
| 606 | $this->trapped_error = array( |
| 607 | 'status' => 500, |
| 608 | 'code' => $error_code, |
| 609 | 'message' => '', |
| 610 | ); |
| 611 | |
| 612 | add_filter( 'wp_die_handler', array( $this, 'wp_die_handler_callback' ) ); |
| 613 | } |
| 614 | |
| 615 | function wp_die_handler_callback() { |
| 616 | return array( $this, 'wp_die_handler' ); |
| 617 | } |
| 618 | |
| 619 | function wp_die_handler( $message, $title = '', $args = array() ) { |
| 620 | $args = wp_parse_args( $args, array( |
| 621 | 'response' => 500, |
| 622 | ) ); |
| 623 | |
| 624 | if ( $title ) { |
| 625 | $message = "$title: $message"; |
| 626 | } |
| 627 | |
| 628 | switch ( $this->trapped_error['code'] ) { |
| 629 | case 'comment_failure' : |
| 630 | if ( did_action( 'comment_duplicate_trigger' ) ) { |
| 631 | $this->trapped_error['code'] = 'comment_duplicate'; |
| 632 | } else if ( did_action( 'comment_flood_trigger' ) ) { |
| 633 | $this->trapped_error['code'] = 'comment_flood'; |
| 634 | } |
| 635 | break; |
| 636 | } |
| 637 | |
| 638 | $this->trapped_error['status'] = $args['response']; |
| 639 | $this->trapped_error['message'] = wp_kses( $message, array() ); |
| 640 | |
| 641 | // We still want to exit so that code execution stops where it should. |
| 642 | // Attach the JSON output to WordPress' shutdown handler |
| 643 | add_action( 'shutdown', array( $this, 'output_trapped_error' ), 0 ); |
| 644 | exit; |
| 645 | } |
| 646 | |
| 647 | function output_trapped_error() { |
| 648 | $this->exit = false; // We're already exiting once. Don't do it twice. |
| 649 | $this->output( $this->trapped_error['status'], (object) array( |
| 650 | 'error' => $this->trapped_error['code'], |
| 651 | 'message' => $this->trapped_error['message'], |
| 652 | ) ); |
| 653 | } |
| 654 | |
| 655 | function finish_request() { |
| 656 | if ( function_exists( 'fastcgi_finish_request' ) ) |
| 657 | return fastcgi_finish_request(); |
| 658 | } |
| 659 | } |
| 660 |