| 1 |
<?php |
| 2 |
/** |
| 3 |
* Friends REST |
| 4 |
* |
| 5 |
* This contains the functions for REST. |
| 6 |
* |
| 7 |
* @package Friends |
| 8 |
*/ |
| 9 |
|
| 10 |
namespace Friends; |
| 11 |
|
| 12 |
/** |
| 13 |
* This is the class for the REST part of the Friends Plugin. |
| 14 |
* |
| 15 |
* @since 0.6 |
| 16 |
* |
| 17 |
* @package Friends |
| 18 |
* @author Alex Kirk |
| 19 |
*/ |
| 20 |
class REST { |
| 21 |
const PREFIX = 'friends/v1'; |
| 22 |
/** |
| 23 |
* Contains a reference to the Friends class. |
| 24 |
* |
| 25 |
* @var Friends |
| 26 |
*/ |
| 27 |
private $friends; |
| 28 |
|
| 29 |
/** |
| 30 |
* Constructor |
| 31 |
* |
| 32 |
* @param Friends $friends A reference to the Friends object. |
| 33 |
*/ |
| 34 |
public function __construct( Friends $friends ) { |
| 35 |
$this->friends = $friends; |
| 36 |
$this->register_hooks(); |
| 37 |
} |
| 38 |
|
| 39 |
/** |
| 40 |
* Register the WordPress hooks |
| 41 |
*/ |
| 42 |
private function register_hooks() { |
| 43 |
add_action( 'rest_api_init', array( $this, 'add_rest_routes' ) ); |
| 44 |
add_action( 'rest_pre_serve_request', array( $this, 'send_rest_origin' ), 20, 3 ); |
| 45 |
} |
| 46 |
|
| 47 |
public function send_rest_origin( $ret, $response, $request ) { |
| 48 |
if ( strpos( $request->get_route(), '/' . self::PREFIX . '/extension' ) !== 0 ) { |
| 49 |
return $ret; |
| 50 |
} |
| 51 |
|
| 52 |
if ( $request->get_header( 'origin' ) ) { |
| 53 |
$scheme = wp_parse_url( $request->get_header( 'origin' ), PHP_URL_SCHEME ); |
| 54 |
if ( 'moz-extension' === $scheme ) { |
| 55 |
header( 'access-control-allow-origin: ' . $request->get_header( 'origin' ) ); |
| 56 |
} |
| 57 |
} |
| 58 |
return $ret; |
| 59 |
} |
| 60 |
|
| 61 |
/** |
| 62 |
* Add the REST API to send and receive friend requests |
| 63 |
*/ |
| 64 |
public function add_rest_routes() { |
| 65 |
register_rest_route( |
| 66 |
self::PREFIX, |
| 67 |
'embed', |
| 68 |
array( |
| 69 |
'methods' => 'GET', |
| 70 |
'callback' => array( $this, 'rest_embed_friend_post' ), |
| 71 |
'permission_callback' => function () { |
| 72 |
return current_user_can( Friends::REQUIRED_ROLE ); |
| 73 |
}, |
| 74 |
) |
| 75 |
); |
| 76 |
|
| 77 |
register_rest_route( |
| 78 |
self::PREFIX, |
| 79 |
'get-feeds', |
| 80 |
array( |
| 81 |
'methods' => 'GET', |
| 82 |
'callback' => array( $this, 'rest_get_feeds' ), |
| 83 |
'permission_callback' => function () { |
| 84 |
return current_user_can( Friends::REQUIRED_ROLE ); |
| 85 |
}, |
| 86 |
) |
| 87 |
); |
| 88 |
|
| 89 |
register_rest_route( |
| 90 |
self::PREFIX, |
| 91 |
'refresh-feed', |
| 92 |
array( |
| 93 |
'methods' => 'POST', |
| 94 |
'callback' => array( $this, 'rest_refresh_feed' ), |
| 95 |
'params' => array( |
| 96 |
'id' => array( |
| 97 |
'type' => 'integer', |
| 98 |
'required' => true, |
| 99 |
), |
| 100 |
), |
| 101 |
'permission_callback' => function () { |
| 102 |
return current_user_can( Friends::REQUIRED_ROLE ); |
| 103 |
}, |
| 104 |
) |
| 105 |
); |
| 106 |
|
| 107 |
register_rest_route( |
| 108 |
self::PREFIX, |
| 109 |
'extension', |
| 110 |
array( |
| 111 |
'methods' => array( 'GET', 'POST' ), |
| 112 |
'callback' => array( $this, 'rest_extension' ), |
| 113 |
'permission_callback' => '__return_true', // Public. |
| 114 |
'params' => array( |
| 115 |
'key' => array( |
| 116 |
'type' => 'string', |
| 117 |
'required' => false, |
| 118 |
), |
| 119 |
), |
| 120 |
) |
| 121 |
); |
| 122 |
|
| 123 |
register_rest_route( |
| 124 |
self::PREFIX, |
| 125 |
'extension/action', |
| 126 |
array( |
| 127 |
'methods' => 'POST', |
| 128 |
'callback' => array( $this, 'rest_extension_action' ), |
| 129 |
'permission_callback' => array( $this, 'browser_extension_action_permission_callback' ), |
| 130 |
'args' => array( |
| 131 |
'action' => array( |
| 132 |
'type' => 'string', |
| 133 |
'required' => true, |
| 134 |
), |
| 135 |
'key' => array( |
| 136 |
'type' => 'string', |
| 137 |
'required' => true, |
| 138 |
), |
| 139 |
), |
| 140 |
) |
| 141 |
); |
| 142 |
} |
| 143 |
|
| 144 |
/** |
| 145 |
* Translate a REST error message |
| 146 |
* |
| 147 |
* @param string $message The message to translate. |
| 148 |
* @return string The translated message. |
| 149 |
*/ |
| 150 |
public static function translate_error_message( $message ) { |
| 151 |
$messages = self::get_error_messages( true ); |
| 152 |
if ( isset( $messages[ $message ] ) ) { |
| 153 |
return $messages[ $message ]; |
| 154 |
} |
| 155 |
return $message; |
| 156 |
} |
| 157 |
|
| 158 |
/** |
| 159 |
* Get the error messages for REST |
| 160 |
* |
| 161 |
* @return array The error messages. |
| 162 |
*/ |
| 163 |
public static function get_error_messages() { |
| 164 |
$english = function () { |
| 165 |
return 'en_US'; |
| 166 |
}; |
| 167 |
|
| 168 |
// In the first pass never translate these messages. |
| 169 |
add_filter( 'locale', $english ); |
| 170 |
|
| 171 |
$messages = array( |
| 172 |
'friends_invalid_parameters' => __( 'Not all necessary parameters were provided.', 'friends' ), |
| 173 |
'friends_invalid_url' => __( 'An invalid URL was provided.', 'friends' ), |
| 174 |
'friends_no_request' => __( 'No request was found.', 'friends' ), |
| 175 |
'friends_invalid_site' => __( 'An invalid site was provided.', 'friends' ), |
| 176 |
'unknown' => __( 'An unknown error occurred.', 'friends' ), |
| 177 |
); |
| 178 |
|
| 179 |
remove_filter( 'locale', $english ); |
| 180 |
|
| 181 |
// Add mapping for English text to translations. |
| 182 |
foreach ( $messages as $key => $message ) { |
| 183 |
$messages[ $message ] = __( $message, 'friends' ); // phpcs:ignore WordPress.WP.I18n.NonSingularStringLiteralText |
| 184 |
} |
| 185 |
|
| 186 |
return $messages; |
| 187 |
} |
| 188 |
|
| 189 |
/** |
| 190 |
* Standardize the error message texts |
| 191 |
* |
| 192 |
* @param string $code The error code. |
| 193 |
* @param string $message The message to return, if not provided the default message will be used. |
| 194 |
* @param int $status The status code to return. |
| 195 |
* |
| 196 |
* @return \WP_Error The error object. |
| 197 |
*/ |
| 198 |
public static function error( $code, $message = '', $status = 403 ) { |
| 199 |
if ( ! $message ) { |
| 200 |
// Return English error messages. |
| 201 |
$messages = self::get_error_messages(); |
| 202 |
if ( isset( $messages[ $code ] ) ) { |
| 203 |
$message = $messages[ $code ]; |
| 204 |
} else { |
| 205 |
$message = $messages['unknown']; |
| 206 |
} |
| 207 |
} |
| 208 |
|
| 209 |
return new \WP_Error( |
| 210 |
$code, |
| 211 |
$message, |
| 212 |
array( |
| 213 |
'status' => $status, |
| 214 |
) |
| 215 |
); |
| 216 |
} |
| 217 |
|
| 218 |
public function rest_embed_friend_post( $request ) { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.Found |
| 219 |
// phpcs:disable WordPress.Security.NonceVerification.Recommended |
| 220 |
if ( empty( $_GET['url'] ) ) { |
| 221 |
return false; |
| 222 |
} |
| 223 |
$post_id = $this->friends->feed->url_to_postid( sanitize_text_field( wp_unslash( $_GET['url'] ) ) ); |
| 224 |
if ( empty( $post_id ) ) { |
| 225 |
return false; |
| 226 |
} |
| 227 |
// phpcs:enable WordPress.Security.NonceVerification.Recommended |
| 228 |
|
| 229 |
if ( ! in_array( get_post_type( $post_id ), apply_filters( 'friends_frontend_post_types', array() ) ) ) { |
| 230 |
return false; |
| 231 |
} |
| 232 |
|
| 233 |
enqueue_embed_scripts(); |
| 234 |
$post = get_post( $post_id ); |
| 235 |
$args = compact( 'post' ); |
| 236 |
setup_postdata( $post ); |
| 237 |
|
| 238 |
header( 'Content-type: text/html' ); |
| 239 |
Friends::template_loader()->get_template_part( 'embed/header-embed', null, $args ); |
| 240 |
Friends::template_loader()->get_template_part( 'embed/embed-content', null, $args ); |
| 241 |
exit; |
| 242 |
} |
| 243 |
|
| 244 |
public function rest_get_feeds( $request ) { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.Found |
| 245 |
$feeds = User_Feed::get_all_due( true ); |
| 246 |
$feeds = array_map( |
| 247 |
function ( $feed ) { |
| 248 |
return array( |
| 249 |
'id' => $feed->get_id(), |
| 250 |
'url' => $feed->get_url(), |
| 251 |
'parser' => $feed->get_parser(), |
| 252 |
'last_log' => $feed->get_last_log(), |
| 253 |
'next_poll' => $feed->get_next_poll(), |
| 254 |
); |
| 255 |
}, |
| 256 |
$feeds |
| 257 |
); |
| 258 |
|
| 259 |
return $feeds; |
| 260 |
} |
| 261 |
|
| 262 |
public function rest_refresh_feed( $request ) { |
| 263 |
$feed_id = $request->get_param( 'id' ); |
| 264 |
$feed = new User_Feed( get_term( intval( $feed_id ) ) ); |
| 265 |
add_filter( 'notify_about_new_friend_post', '__return_false', 999 ); |
| 266 |
add_action( |
| 267 |
'wp_feed_options', |
| 268 |
function ( &$feed ) { |
| 269 |
$feed->enable_cache( false ); |
| 270 |
} |
| 271 |
); |
| 272 |
$new_posts = array(); |
| 273 |
|
| 274 |
$friend_user = $feed->get_friend_user(); |
| 275 |
$was_polled = false; |
| 276 |
if ( $friend_user && $feed->can_be_polled_now() ) { |
| 277 |
$feed->set_polling_now(); |
| 278 |
$new_posts = $this->friends->feed->retrieve_feed( $feed ); |
| 279 |
$feed->was_polled(); |
| 280 |
if ( is_wp_error( $new_posts ) ) { |
| 281 |
return $new_posts; |
| 282 |
} |
| 283 |
$was_polled = true; |
| 284 |
$friend_user->delete_outdated_posts(); |
| 285 |
} |
| 286 |
|
| 287 |
return array( |
| 288 |
'new_posts' => count( $new_posts ), |
| 289 |
'url' => $feed->get_url(), |
| 290 |
'was_polled' => $was_polled, |
| 291 |
); |
| 292 |
} |
| 293 |
|
| 294 |
public function rest_extension( $request ) { |
| 295 |
$return = array( |
| 296 |
'version' => Friends::VERSION, |
| 297 |
'friends_url' => home_url( '/friends/' ), |
| 298 |
'settings_url' => admin_url( 'admin.php?page=friends-browser-extension' ), |
| 299 |
); |
| 300 |
|
| 301 |
if ( 'POST' === $request->get_method() && $request->get_param( 'key' ) ) { |
| 302 |
$current_user = self::get_browser_extension_user( $request->get_param( 'key' ) ); |
| 303 |
if ( ! is_wp_error( $current_user ) ) { |
| 304 |
$context = $this->get_browser_extension_request_context( $request, $current_user ); |
| 305 |
|
| 306 |
/** |
| 307 |
* Allows plugins to register actions for the Friends browser extension. |
| 308 |
* |
| 309 |
* Each action is an associative array with: |
| 310 |
* - `name` (string, required) — label shown in the extension popup. |
| 311 |
* - `url` (string, required) — target URL; may contain `{current_url}` which the extension substitutes with the current page URL (URL-encoded). |
| 312 |
* - `method` (string, optional) — if `"POST"`, the extension submits a form instead of opening a link. |
| 313 |
* - `fields` (object, optional) — for POST actions, key/value pairs of form fields; values may contain `{current_url}` (raw) and `{page_html}` placeholders. |
| 314 |
* - `run` (string, optional) — if `"inline"`, the extension handles the response in place instead of opening a new tab. |
| 315 |
* - `inputs` (array, optional) — user-editable fields for inline actions. |
| 316 |
* - `category` (string, optional) — groups actions under a named header; actions without a category appear under the default "Actions" header. |
| 317 |
* |
| 318 |
* Example: |
| 319 |
* ```php |
| 320 |
* add_filter( 'friends_browser_extension_actions', function ( $actions, $current_user, $context ) { |
| 321 |
* $actions[] = array( |
| 322 |
* 'name' => 'Save to Collection', |
| 323 |
* 'url' => home_url( '/collect/?url={current_url}' ), |
| 324 |
* ); |
| 325 |
* return $actions; |
| 326 |
* }, 10, 3 ); |
| 327 |
* ``` |
| 328 |
* |
| 329 |
* @param array $actions The array of actions. |
| 330 |
* @param \WP_User $current_user The current user. |
| 331 |
* @param array $context Browser extension request context: key, version, user, and request. |
| 332 |
* @return array The modified array of actions. |
| 333 |
*/ |
| 334 |
$previous_user_id = get_current_user_id(); |
| 335 |
wp_set_current_user( $current_user->ID ); |
| 336 |
try { |
| 337 |
$actions = apply_filters( 'friends_browser_extension_actions', array(), $current_user, $context ); |
| 338 |
} finally { |
| 339 |
wp_set_current_user( $previous_user_id ); |
| 340 |
} |
| 341 |
|
| 342 |
$return['actions'] = array_values( |
| 343 |
array_filter( |
| 344 |
$actions, |
| 345 |
function ( $action ) { |
| 346 |
return is_array( $action ) |
| 347 |
&& ! empty( $action['name'] ) |
| 348 |
&& is_string( $action['name'] ) |
| 349 |
&& ! empty( $action['url'] ) |
| 350 |
&& is_string( $action['url'] ); |
| 351 |
} |
| 352 |
) |
| 353 |
); |
| 354 |
} else { |
| 355 |
$return['error'] = 'Invalid API key'; |
| 356 |
} |
| 357 |
} |
| 358 |
|
| 359 |
return $return; |
| 360 |
} |
| 361 |
|
| 362 |
/** |
| 363 |
* Validate a browser extension inline action request. |
| 364 |
* |
| 365 |
* @param \WP_REST_Request $request The REST request. |
| 366 |
* @return true|\WP_Error True if the request is allowed, otherwise an error. |
| 367 |
*/ |
| 368 |
public function browser_extension_action_permission_callback( $request ) { |
| 369 |
$current_user = self::get_browser_extension_user( $request->get_param( 'key' ) ); |
| 370 |
if ( is_wp_error( $current_user ) ) { |
| 371 |
return new \WP_Error( |
| 372 |
$current_user->get_error_code(), |
| 373 |
$current_user->get_error_message(), |
| 374 |
array( 'status' => 401 ) |
| 375 |
); |
| 376 |
} |
| 377 |
|
| 378 |
$attributes = $request->get_attributes(); |
| 379 |
$attributes['friends_browser_extension_user'] = $current_user; |
| 380 |
$attributes['friends_browser_extension_context'] = $this->get_browser_extension_request_context( $request, $current_user ); |
| 381 |
$request->set_attributes( $attributes ); |
| 382 |
|
| 383 |
return true; |
| 384 |
} |
| 385 |
|
| 386 |
/** |
| 387 |
* Handle a browser extension inline action. |
| 388 |
* |
| 389 |
* @param \WP_REST_Request $request The REST request. |
| 390 |
* @return \WP_REST_Response The REST response. |
| 391 |
*/ |
| 392 |
public function rest_extension_action( $request ) { |
| 393 |
$url_params = $request->get_url_params(); |
| 394 |
$action = isset( $url_params['action'] ) ? $url_params['action'] : $request->get_param( 'action' ); |
| 395 |
$action = sanitize_key( (string) wp_unslash( $action ) ); |
| 396 |
if ( ! $action ) { |
| 397 |
return self::browser_extension_action_error( |
| 398 |
new \WP_Error( 'friends_missing_browser_extension_action', __( 'No browser extension action was provided.', 'friends' ) ), |
| 399 |
400 |
| 400 |
); |
| 401 |
} |
| 402 |
|
| 403 |
$attributes = $request->get_attributes(); |
| 404 |
$current_user = isset( $attributes['friends_browser_extension_user'] ) ? $attributes['friends_browser_extension_user'] : self::get_browser_extension_user( $request->get_param( 'key' ) ); |
| 405 |
if ( is_wp_error( $current_user ) ) { |
| 406 |
return self::browser_extension_action_error( $current_user, 401 ); |
| 407 |
} |
| 408 |
|
| 409 |
$context = isset( $attributes['friends_browser_extension_context'] ) ? $attributes['friends_browser_extension_context'] : $this->get_browser_extension_request_context( $request, $current_user ); |
| 410 |
$context['action'] = $action; |
| 411 |
|
| 412 |
$previous_user_id = get_current_user_id(); |
| 413 |
wp_set_current_user( $current_user->ID ); |
| 414 |
|
| 415 |
try { |
| 416 |
/** |
| 417 |
* Handles a browser extension inline action. |
| 418 |
* |
| 419 |
* Return a \WP_REST_Response, \WP_Error, array, or scalar value. Returning null means the action |
| 420 |
* was not handled. |
| 421 |
* |
| 422 |
* @param mixed $response The action response. |
| 423 |
* @param string $action The browser extension action name. |
| 424 |
* @param \WP_REST_Request $request The REST request. |
| 425 |
* @param \WP_User $current_user The user authenticated by the browser extension key. |
| 426 |
* @param array $context Browser extension request context. |
| 427 |
*/ |
| 428 |
$response = apply_filters( 'friends_browser_extension_action', null, $action, $request, $current_user, $context ); |
| 429 |
|
| 430 |
/** |
| 431 |
* Handles a specific browser extension inline action. |
| 432 |
* |
| 433 |
* The dynamic portion of the hook name, `$action`, is the sanitized action name from the |
| 434 |
* request's `action` parameter. |
| 435 |
* |
| 436 |
* @param mixed $response The action response. |
| 437 |
* @param \WP_REST_Request $request The REST request. |
| 438 |
* @param \WP_User $current_user The user authenticated by the browser extension key. |
| 439 |
* @param array $context Browser extension request context. |
| 440 |
*/ |
| 441 |
$response = apply_filters( "friends_browser_extension_action_{$action}", $response, $request, $current_user, $context ); |
| 442 |
} finally { |
| 443 |
wp_set_current_user( $previous_user_id ); |
| 444 |
} |
| 445 |
|
| 446 |
if ( null === $response ) { |
| 447 |
return self::browser_extension_action_error( |
| 448 |
new \WP_Error( 'friends_unknown_browser_extension_action', __( 'Unknown browser extension action.', 'friends' ) ), |
| 449 |
404 |
| 450 |
); |
| 451 |
} |
| 452 |
|
| 453 |
return self::prepare_browser_extension_action_response( $response ); |
| 454 |
} |
| 455 |
|
| 456 |
/** |
| 457 |
* Get the user authenticated by a browser extension key. |
| 458 |
* |
| 459 |
* @param string $key The browser extension API key. |
| 460 |
* @return \WP_User|\WP_Error The authenticated user or an error. |
| 461 |
*/ |
| 462 |
private static function get_browser_extension_user( $key ) { |
| 463 |
$key = sanitize_text_field( (string) wp_unslash( $key ) ); |
| 464 |
if ( ! $key ) { |
| 465 |
return new \WP_Error( 'friends_invalid_browser_extension_key', __( 'Invalid API key', 'friends' ) ); |
| 466 |
} |
| 467 |
|
| 468 |
$user = Admin::get_browser_api_key_user( $key ); |
| 469 |
if ( ! $user ) { |
| 470 |
return new \WP_Error( 'friends_invalid_browser_extension_key', __( 'Invalid API key', 'friends' ) ); |
| 471 |
} |
| 472 |
|
| 473 |
return $user; |
| 474 |
} |
| 475 |
|
| 476 |
/** |
| 477 |
* Build browser extension request context for plugin filters. |
| 478 |
* |
| 479 |
* @param \WP_REST_Request $request The REST request. |
| 480 |
* @param \WP_User $current_user The user authenticated by the browser extension key. |
| 481 |
* @return array Browser extension request context. |
| 482 |
*/ |
| 483 |
private function get_browser_extension_request_context( $request, $current_user ) { |
| 484 |
$key = sanitize_text_field( (string) wp_unslash( $request->get_param( 'key' ) ) ); |
| 485 |
$version = sanitize_text_field( (string) wp_unslash( $request->get_param( 'version' ) ) ); |
| 486 |
|
| 487 |
if ( ! $version ) { |
| 488 |
$version = sanitize_text_field( (string) wp_unslash( $request->get_param( 'extension_version' ) ) ); |
| 489 |
} |
| 490 |
|
| 491 |
return array( |
| 492 |
'key' => $key, |
| 493 |
'browser_extension_key' => $key, |
| 494 |
'version' => $version, |
| 495 |
'extension_version' => $version, |
| 496 |
'user' => $current_user, |
| 497 |
'request' => $request, |
| 498 |
); |
| 499 |
} |
| 500 |
|
| 501 |
/** |
| 502 |
* Prepare a browser extension action response. |
| 503 |
* |
| 504 |
* @param mixed $response The handler response. |
| 505 |
* @return \WP_REST_Response The REST response. |
| 506 |
*/ |
| 507 |
private static function prepare_browser_extension_action_response( $response ) { |
| 508 |
if ( is_wp_error( $response ) ) { |
| 509 |
return self::browser_extension_action_error( $response, 400 ); |
| 510 |
} |
| 511 |
|
| 512 |
if ( $response instanceof \WP_REST_Response ) { |
| 513 |
return $response; |
| 514 |
} |
| 515 |
|
| 516 |
if ( true === $response ) { |
| 517 |
$response = array( |
| 518 |
'success' => true, |
| 519 |
); |
| 520 |
} |
| 521 |
|
| 522 |
return rest_ensure_response( $response ); |
| 523 |
} |
| 524 |
|
| 525 |
/** |
| 526 |
* Format a browser extension action error response. |
| 527 |
* |
| 528 |
* @param \WP_Error $error The error. |
| 529 |
* @param int $status The default HTTP status. |
| 530 |
* @return \WP_REST_Response The REST response. |
| 531 |
*/ |
| 532 |
private static function browser_extension_action_error( \WP_Error $error, $status ) { |
| 533 |
$error_data = $error->get_error_data(); |
| 534 |
if ( is_array( $error_data ) && ! empty( $error_data['status'] ) ) { |
| 535 |
$status = absint( $error_data['status'] ); |
| 536 |
} |
| 537 |
|
| 538 |
return new \WP_REST_Response( |
| 539 |
array( |
| 540 |
'success' => false, |
| 541 |
'code' => $error->get_error_code(), |
| 542 |
'message' => $error->get_error_message(), |
| 543 |
), |
| 544 |
$status |
| 545 |
); |
| 546 |
} |
| 547 |
|
| 548 |
/** |
| 549 |
* Discover the REST URL for a friend site |
| 550 |
* |
| 551 |
* @param array $feeds The URL of the site. |
| 552 |
* @return string|\WP_Error The REST URL or an error. |
| 553 |
*/ |
| 554 |
public function get_friends_rest_url( $feeds ) { |
| 555 |
foreach ( $feeds as $feed_url => $feed ) { |
| 556 |
if ( isset( $feed['parser'] ) && 'friends' === $feed['parser'] ) { |
| 557 |
return $feed_url; |
| 558 |
} |
| 559 |
} |
| 560 |
|
| 561 |
return false; |
| 562 |
} |
| 563 |
|
| 564 |
/** |
| 565 |
* Discover the REST URL for a friend site |
| 566 |
* |
| 567 |
* @param string $url The URL of the site. |
| 568 |
* @return string|\WP_Error The REST URL or an error. |
| 569 |
*/ |
| 570 |
public function discover_rest_url( $url ) { |
| 571 |
if ( ! is_string( $url ) || ! Friends::check_url( $url ) ) { |
| 572 |
return self::error( 'friends_invalid_url' ); |
| 573 |
} |
| 574 |
|
| 575 |
$response = wp_safe_remote_get( |
| 576 |
$url, |
| 577 |
array( |
| 578 |
'timeout' => 20, |
| 579 |
'redirection' => 5, |
| 580 |
) |
| 581 |
); |
| 582 |
|
| 583 |
if ( is_wp_error( $response ) ) { |
| 584 |
return $response; |
| 585 |
} |
| 586 |
|
| 587 |
if ( 200 === wp_remote_retrieve_response_code( $response ) ) { |
| 588 |
$dom = new \DOMDocument(); |
| 589 |
set_error_handler( '__return_null' ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_set_error_handler |
| 590 |
$dom->loadHTML( wp_remote_retrieve_body( $response ) ); |
| 591 |
restore_error_handler(); |
| 592 |
|
| 593 |
$xpath = new \DOMXpath( $dom ); |
| 594 |
foreach ( $xpath->query( '//link[@rel and @href]' ) as $link ) { |
| 595 |
if ( 'friends-base-url' === $link->getAttribute( 'rel' ) ) { |
| 596 |
$rest_url = $link->getAttribute( 'href' ); |
| 597 |
if ( is_string( $rest_url ) && Friends::check_url( $rest_url ) ) { |
| 598 |
return $rest_url; |
| 599 |
} |
| 600 |
} |
| 601 |
} |
| 602 |
} |
| 603 |
|
| 604 |
return null; |
| 605 |
} |
| 606 |
} |
| 607 |
|
