| 1 |
<?php |
| 2 |
/** |
| 3 |
* Friends Feed |
| 4 |
* |
| 5 |
* This contains the feed functions. |
| 6 |
* |
| 7 |
* @package Friends |
| 8 |
*/ |
| 9 |
|
| 10 |
namespace Friends; |
| 11 |
|
| 12 |
/** |
| 13 |
* This is the class for the feed part of the Friends Plugin. |
| 14 |
* |
| 15 |
* @since 0.6 |
| 16 |
* |
| 17 |
* @package Friends |
| 18 |
* @author Alex Kirk |
| 19 |
*/ |
| 20 |
class Feed { |
| 21 |
const XMLNS = 'wordpress-plugin-friends:feed-additions:1'; |
| 22 |
const COMMENTS_FEED_META = 'comments-feed'; |
| 23 |
|
| 24 |
/** |
| 25 |
* Contains a reference to the Friends class. |
| 26 |
* |
| 27 |
* @var Friends |
| 28 |
*/ |
| 29 |
private $friends; |
| 30 |
|
| 31 |
/** |
| 32 |
* Contains the registered parsers. |
| 33 |
* |
| 34 |
* @var array |
| 35 |
*/ |
| 36 |
private $parsers = array(); |
| 37 |
|
| 38 |
/** |
| 39 |
* These parsers cannot be registered. |
| 40 |
* |
| 41 |
* @var array |
| 42 |
*/ |
| 43 |
private $reserved_parser_slugs = array( 'friends', 'unsupported' ); |
| 44 |
|
| 45 |
/** |
| 46 |
* Constructor |
| 47 |
* |
| 48 |
* @param Friends $friends A reference to the Friends object. |
| 49 |
*/ |
| 50 |
public function __construct( Friends $friends ) { |
| 51 |
$this->friends = $friends; |
| 52 |
$this->register_hooks(); |
| 53 |
} |
| 54 |
|
| 55 |
/** |
| 56 |
* Register the WordPress hooks |
| 57 |
*/ |
| 58 |
private function register_hooks() { |
| 59 |
add_filter( 'friends_early_modify_feed_item', array( $this, 'apply_early_feed_rules' ), 10, 3 ); |
| 60 |
add_filter( 'friends_modify_feed_item', array( $this, 'apply_feed_rules' ), 10, 3 ); |
| 61 |
|
| 62 |
add_action( 'rss_item', array( $this, 'feed_additional_fields' ) ); |
| 63 |
add_action( 'rss2_item', array( $this, 'feed_additional_fields' ) ); |
| 64 |
add_action( 'rss_ns', array( $this, 'additional_feed_namespaces' ) ); |
| 65 |
add_action( 'rss2_ns', array( $this, 'additional_feed_namespaces' ) ); |
| 66 |
|
| 67 |
add_action( 'cron_friends_refresh_feeds', array( $this, 'cron_friends_refresh_feeds' ) ); |
| 68 |
add_action( 'friends_retrieve_user_feeds', array( $this, 'friends_retrieve_user_feeds' ) ); |
| 69 |
|
| 70 |
add_action( 'wp_loaded', array( $this, 'friends_add_friend_redirect' ), 100 ); |
| 71 |
add_action( 'wp_feed_options', array( $this, 'wp_feed_options' ), 90 ); |
| 72 |
|
| 73 |
add_action( 'wp_insert_post', array( $this, 'invalidate_post_count_cache' ), 10, 2 ); |
| 74 |
add_action( 'oembed_request_post_id', array( $this, 'oembed_request_post_id' ), 10, 2 ); |
| 75 |
add_action( 'post_embed_url', array( $this, 'post_embed_url' ), 10, 2 ); |
| 76 |
} |
| 77 |
|
| 78 |
/** |
| 79 |
* Allow registering a parser |
| 80 |
* |
| 81 |
* @param string $slug The slug. |
| 82 |
* @param Feed_Parser $parser The parser that extends the Feed_Parser class. |
| 83 |
*/ |
| 84 |
public function register_parser( $slug, Feed_Parser $parser ) { |
| 85 |
if ( in_array( $slug, $this->reserved_parser_slugs, true ) ) { |
| 86 |
// translators: %s is the slug of a parser. |
| 87 |
return new \WP_Error( 'resevered-slug', sprintf( __( 'The slug "%s" cannot be used.', 'friends' ), $slug ) ); |
| 88 |
} |
| 89 |
if ( isset( $this->parsers[ $slug ] ) ) { |
| 90 |
// translators: %s is the slug of a parser. |
| 91 |
return new \WP_Error( 'parser-already-registered', sprintf( __( 'There is already a parser registered with the slug "%s".', 'friends' ), $slug ) ); |
| 92 |
} |
| 93 |
$this->parsers[ $slug ] = $parser; |
| 94 |
|
| 95 |
return true; |
| 96 |
} |
| 97 |
|
| 98 |
/** |
| 99 |
* Allow unregistering a parser |
| 100 |
* |
| 101 |
* @param string $slug The slug. |
| 102 |
*/ |
| 103 |
public function unregister_parser( $slug ) { |
| 104 |
if ( ! in_array( $slug, $this->reserved_parser_slugs, true ) ) { |
| 105 |
unset( $this->parsers[ $slug ] ); |
| 106 |
} |
| 107 |
} |
| 108 |
|
| 109 |
/** |
| 110 |
* Cron function to refresh the feeds of the friends' blogs |
| 111 |
*/ |
| 112 |
public function cron_friends_refresh_feeds() { |
| 113 |
foreach ( User_Feed::get_all_due() as $feed ) { |
| 114 |
if ( ! $feed->can_be_polled_now() ) { |
| 115 |
continue; |
| 116 |
} |
| 117 |
$feed->set_polling_now(); |
| 118 |
$this->retrieve_feed( $feed ); |
| 119 |
$feed->was_polled(); |
| 120 |
} |
| 121 |
} |
| 122 |
|
| 123 |
/** |
| 124 |
* Function to fetch a users feeds. |
| 125 |
* |
| 126 |
* @param int $user_id The user id. |
| 127 |
*/ |
| 128 |
public function friends_retrieve_user_feeds( $user_id ) { |
| 129 |
$friend_user = User::get_user_by_id( $user_id ); |
| 130 |
if ( ! $friend_user ) { |
| 131 |
return; |
| 132 |
} |
| 133 |
|
| 134 |
foreach ( $friend_user->get_active_feeds() as $feed ) { |
| 135 |
$friend_user = $feed->get_friend_user(); |
| 136 |
if ( $friend_user && $feed->can_be_polled_now() ) { |
| 137 |
$feed->set_polling_now(); |
| 138 |
$this->retrieve_feed( $feed ); |
| 139 |
$feed->was_polled(); |
| 140 |
} |
| 141 |
} |
| 142 |
} |
| 143 |
|
| 144 |
/** |
| 145 |
* Preview a URL using a parser. |
| 146 |
* |
| 147 |
* @param string|Feed_Parser $parser The parser or its slug slug. |
| 148 |
* @param string $url The url. |
| 149 |
* @param int $feed_id The feed id. |
| 150 |
* |
| 151 |
* @return array|\WP_Error The feed items. |
| 152 |
*/ |
| 153 |
public function preview( $parser, $url, $feed_id = null ) { |
| 154 |
if ( is_string( $parser ) ) { |
| 155 |
if ( ! isset( $this->parsers[ $parser ] ) ) { |
| 156 |
return new \WP_Error( |
| 157 |
'unknown-parser', |
| 158 |
sprintf( |
| 159 |
// translators: %s is a parser name. |
| 160 |
__( 'An unknown parser name was supplied: %s', 'friends' ), |
| 161 |
$parser |
| 162 |
) |
| 163 |
); |
| 164 |
} |
| 165 |
$parser = $this->parsers[ $parser ]; |
| 166 |
} elseif ( ! $parser instanceof Feed_Parser_V2 ) { |
| 167 |
return new \WP_Error( 'invalid-parser', __( 'An invalid parser was supplied.', 'friends' ) ); |
| 168 |
} |
| 169 |
|
| 170 |
$user_feed = null; |
| 171 |
$friend_user = null; |
| 172 |
if ( ! is_null( $feed_id ) ) { |
| 173 |
$user_feed = User_Feed::get_by_id( $feed_id ); |
| 174 |
if ( ! is_wp_error( $user_feed ) ) { |
| 175 |
$friend_user = $user_feed->get_friend_user(); |
| 176 |
} |
| 177 |
} |
| 178 |
|
| 179 |
$items = $parser->fetch_feed( $url, $user_feed ); |
| 180 |
|
| 181 |
if ( ! is_wp_error( $items ) ) { |
| 182 |
if ( empty( $items ) ) { |
| 183 |
$items = new \WP_Error( 'empty-feed', __( "This feed doesn't contain any entries. There might be a problem parsing the feed.", 'friends' ) ); |
| 184 |
} else { |
| 185 |
foreach ( $items as $key => $item ) { |
| 186 |
if ( is_wp_error( $item ) ) { |
| 187 |
unset( $items[ $key ] ); |
| 188 |
continue; |
| 189 |
} |
| 190 |
$item = apply_filters( 'friends_modify_feed_item', $item, $user_feed, $friend_user, null ); |
| 191 |
|
| 192 |
if ( ! $item || $item->_feed_rule_delete ) { |
| 193 |
unset( $items[ $key ] ); |
| 194 |
continue; |
| 195 |
} |
| 196 |
if ( ! empty( $item->_feed_rule_transform ) && is_array( $item->_feed_rule_transform ) ) { |
| 197 |
if ( isset( $item->_feed_rule_transform['post_content'] ) ) { |
| 198 |
$items[ $key ]->content = $item->_feed_rule_transform['post_content']; |
| 199 |
} |
| 200 |
} |
| 201 |
} |
| 202 |
} |
| 203 |
} |
| 204 |
|
| 205 |
return $items; |
| 206 |
} |
| 207 |
|
| 208 |
/** |
| 209 |
* Retrieves a user feed. |
| 210 |
* |
| 211 |
* @param User_Feed $user_feed The user feed. |
| 212 |
* |
| 213 |
* @return array|\WP_Error The retrieved items. |
| 214 |
*/ |
| 215 |
public function retrieve_feed( User_Feed $user_feed ) { |
| 216 |
$friend_user = $user_feed->get_friend_user(); |
| 217 |
$parser = $user_feed->get_parser(); |
| 218 |
if ( ! isset( $this->parsers[ $parser ] ) ) { |
| 219 |
$error = new \WP_Error( 'unknown-parser', __( 'An unknown parser name was supplied.', 'friends' ) ); |
| 220 |
do_action( 'friends_retrieve_friends_error', $user_feed, $error, $friend_user ); |
| 221 |
return $error; |
| 222 |
} |
| 223 |
try { |
| 224 |
$items = $this->parsers[ $parser ]->fetch_feed( $user_feed->get_url(), $user_feed ); |
| 225 |
} catch ( \Exception $e ) { |
| 226 |
$items = new \WP_Error( $parser . '-failed', $e->getMessage() ); |
| 227 |
} |
| 228 |
|
| 229 |
if ( is_wp_error( $items ) ) { |
| 230 |
do_action( 'friends_retrieve_friends_error', $user_feed, $items, $friend_user ); |
| 231 |
return $items; |
| 232 |
} |
| 233 |
|
| 234 |
$new_posts = $this->process_incoming_feed_items( $items, $user_feed ); |
| 235 |
|
| 236 |
return $new_posts; |
| 237 |
} |
| 238 |
|
| 239 |
/** |
| 240 |
* Notify users about new posts of this friend |
| 241 |
* |
| 242 |
* @param User $friend_user The friend. |
| 243 |
* @param array $new_posts The new posts of this friend. |
| 244 |
* @param User_Feed $user_feed The user feed. |
| 245 |
*/ |
| 246 |
public function notify_about_new_posts( User $friend_user, $new_posts, User_Feed $user_feed ) { |
| 247 |
$keywords = self::get_active_notification_keywords(); |
| 248 |
foreach ( $new_posts as $post_id ) { |
| 249 |
$post = false; |
| 250 |
|
| 251 |
$keyword_match = false; |
| 252 |
if ( $keywords ) { |
| 253 |
$post = get_post( intval( $post_id ) ); |
| 254 |
$fulltext = ''; |
| 255 |
foreach ( apply_filters( 'friends_keyword_search_fields', array( 'post_title', 'post_content' ) ) as $field ) { |
| 256 |
$fulltext .= PHP_EOL . $post->$field; |
| 257 |
} |
| 258 |
$fulltext = wp_strip_all_tags( $fulltext ); |
| 259 |
foreach ( $keywords as $keyword ) { |
| 260 |
if ( preg_match( '/' . str_replace( '/', '\\/', $keyword ) . '/ius', $fulltext ) ) { |
| 261 |
$keyword_match = $keyword; |
| 262 |
break; |
| 263 |
} |
| 264 |
} |
| 265 |
|
| 266 |
if ( $keyword_match ) { |
| 267 |
$notified = apply_filters( 'friends_notify_keyword_match_post', false, $post, $keyword_match ); |
| 268 |
if ( $notified ) { |
| 269 |
continue; |
| 270 |
} |
| 271 |
} |
| 272 |
} |
| 273 |
|
| 274 |
$notify_users = apply_filters( 'notify_about_new_friend_post', true, $friend_user, $post_id, $user_feed, $keyword_match ); |
| 275 |
if ( $notify_users ) { |
| 276 |
if ( ! $post ) { |
| 277 |
$post = get_post( intval( $post_id ) ); |
| 278 |
} |
| 279 |
do_action( 'notify_new_friend_post', $post, $user_feed, $keyword_match ); |
| 280 |
} |
| 281 |
} |
| 282 |
} |
| 283 |
|
| 284 |
/** |
| 285 |
* Retrieve posts from all friends. |
| 286 |
* |
| 287 |
* @param bool $ignore_due_date Whether to get also undue feeds. |
| 288 |
*/ |
| 289 |
public function retrieve_friend_posts( $ignore_due_date = false ) { |
| 290 |
foreach ( User_Feed::get_all_due( $ignore_due_date ) as $feed ) { |
| 291 |
$feed->set_polling_now(); |
| 292 |
$this->retrieve_feed( $feed ); |
| 293 |
$feed->was_polled(); |
| 294 |
} |
| 295 |
} |
| 296 |
|
| 297 |
/** |
| 298 |
* Apply the feed rules that need to be applied early. |
| 299 |
* |
| 300 |
* @param Feed_Item $item The feed item. |
| 301 |
* @param User_Feed $feed The feed. |
| 302 |
* @param User $friend_user The friend user. |
| 303 |
* @return Feed_Item The modified feed item. |
| 304 |
*/ |
| 305 |
public function apply_early_feed_rules( $item, ?User_Feed $feed = null, ?User $friend_user = null ) { |
| 306 |
$updated_item = $this->apply_feed_rules( $item, $feed, $friend_user ); |
| 307 |
if ( $updated_item->_feed_rule_delete ) { |
| 308 |
return $updated_item; |
| 309 |
} |
| 310 |
return $item; |
| 311 |
} |
| 312 |
|
| 313 |
/** |
| 314 |
* Apply the feed rules |
| 315 |
* |
| 316 |
* @param Feed_Item $item The feed item. |
| 317 |
* @param User_Feed $feed The feed object. |
| 318 |
* @param User $friend_user The friend user. |
| 319 |
* @return Feed_Item The modified feed item. |
| 320 |
*/ |
| 321 |
public function apply_feed_rules( $item, ?User_Feed $feed = null, ?User $friend_user = null ) { |
| 322 |
if ( is_null( $friend_user ) ) { |
| 323 |
return $item; |
| 324 |
} |
| 325 |
|
| 326 |
$rules = $friend_user->get_feed_rules(); |
| 327 |
$action = $friend_user->get_feed_catch_all(); |
| 328 |
$decided = false; |
| 329 |
|
| 330 |
foreach ( $rules as $rule ) { |
| 331 |
if ( $item instanceof \WP_Post ) { |
| 332 |
$field = $this->get_feed_rule_field( $rule['field'] ); |
| 333 |
|
| 334 |
if ( 'author' === $rule['field'] ) { |
| 335 |
$item->$field = get_post_meta( $item->ID, 'author', true ); |
| 336 |
} |
| 337 |
} else { |
| 338 |
$field = $rule['field']; |
| 339 |
} |
| 340 |
$subject = false; |
| 341 |
if ( $item->$field ) { |
| 342 |
$subject = $item->$field; |
| 343 |
} |
| 344 |
$field_rule_field = $this->get_feed_rule_field( $rule['field'], $item ); |
| 345 |
if ( isset( $item->_feed_rule_transform[ $field_rule_field ] ) ) { |
| 346 |
$subject = $item->_feed_rule_transform[ $field_rule_field ]; |
| 347 |
} |
| 348 |
if ( $subject && preg_match( '/' . str_replace( '/', '\\/', $rule['regex'] ) . '/ius', $subject ) ) { |
| 349 |
if ( 'replace' === $rule['action'] ) { |
| 350 |
$item->_feed_rule_transform = array( |
| 351 |
$field_rule_field => preg_replace( '/' . str_replace( '/', '\\/', $rule['regex'] ) . '/ius', $rule['replace'], $subject ), |
| 352 |
); |
| 353 |
continue; |
| 354 |
} |
| 355 |
if ( $decided ) { |
| 356 |
continue; |
| 357 |
} |
| 358 |
$action = $rule['action']; |
| 359 |
$decided = true; |
| 360 |
} |
| 361 |
} |
| 362 |
|
| 363 |
switch ( $action ) { |
| 364 |
case 'delete': |
| 365 |
$item->_feed_rule_delete = true; |
| 366 |
return $item; |
| 367 |
|
| 368 |
case 'trash': |
| 369 |
if ( empty( $item->_feed_rule_transform ) ) { |
| 370 |
$item->_feed_rule_transform = array(); |
| 371 |
} |
| 372 |
$item->_feed_rule_transform = array_merge( |
| 373 |
$item->_feed_rule_transform, |
| 374 |
array( |
| 375 |
'post_status' => 'trash', |
| 376 |
) |
| 377 |
); |
| 378 |
return $item; |
| 379 |
|
| 380 |
case 'accept': |
| 381 |
return $item; |
| 382 |
} |
| 383 |
return $item; |
| 384 |
} |
| 385 |
|
| 386 |
/** |
| 387 |
* Get the field name for the feed item. |
| 388 |
* |
| 389 |
* @param string $field The field name. |
| 390 |
* @return string The adapted field name. |
| 391 |
*/ |
| 392 |
private function get_feed_rule_field( $field ) { |
| 393 |
switch ( $field ) { |
| 394 |
case 'title': |
| 395 |
return 'post_title'; |
| 396 |
case 'permalink': |
| 397 |
return 'guid'; |
| 398 |
case 'content': |
| 399 |
return 'post_content'; |
| 400 |
} |
| 401 |
|
| 402 |
return $field; |
| 403 |
} |
| 404 |
|
| 405 |
/** |
| 406 |
* Validate feed item rules |
| 407 |
* |
| 408 |
* @param array $rules The rules to validate. |
| 409 |
* @return array The valid rules. |
| 410 |
*/ |
| 411 |
public static function validate_feed_rules( $rules ) { |
| 412 |
if ( ! is_array( $rules ) ) { |
| 413 |
$json_rules = json_decode( $rules, true ); |
| 414 |
if ( is_array( $json_rules ) ) { |
| 415 |
$rules = $json_rules; |
| 416 |
} else { |
| 417 |
return array(); |
| 418 |
} |
| 419 |
} |
| 420 |
|
| 421 |
if ( isset( $rules['field'] ) && is_array( $rules['field'] ) ) { |
| 422 |
// Transform POST values. |
| 423 |
$transformed_rules = array(); |
| 424 |
foreach ( array_keys( $rules['field'] ) as $key ) { |
| 425 |
$rule = array(); |
| 426 |
foreach ( $rules as $part => $keys ) { |
| 427 |
if ( isset( $keys[ $key ] ) ) { |
| 428 |
$rule[ $part ] = stripslashes( $keys[ $key ] ); |
| 429 |
} |
| 430 |
} |
| 431 |
$transformed_rules[] = $rule; |
| 432 |
} |
| 433 |
$rules = $transformed_rules; |
| 434 |
} |
| 435 |
|
| 436 |
foreach ( $rules as $k => $rule ) { |
| 437 |
if ( ! isset( $rule['field'] ) || ! in_array( $rule['field'], array( 'title', 'content', 'permalink', 'author' ), true ) ) { |
| 438 |
unset( $rules[ $k ] ); |
| 439 |
continue; |
| 440 |
} |
| 441 |
|
| 442 |
if ( ! isset( $rule['regex'] ) || ! is_string( $rule['regex'] ) || '' === trim( $rule['regex'] ) ) { |
| 443 |
unset( $rules[ $k ] ); |
| 444 |
continue; |
| 445 |
} |
| 446 |
|
| 447 |
$rules[ $k ]['regex'] = substr( $rule['regex'], 0, 10240 ); |
| 448 |
|
| 449 |
if ( ! isset( $rule['action'] ) || ! in_array( $rule['action'], array( 'accept', 'trash', 'delete', 'replace' ), true ) ) { |
| 450 |
unset( $rules[ $k ] ); |
| 451 |
continue; |
| 452 |
} |
| 453 |
|
| 454 |
if ( 'replace' === $rule['action'] ) { |
| 455 |
if ( ! isset( $rule['replace'] ) || ! is_string( $rule['replace'] ) ) { |
| 456 |
unset( $rules[ $k ] ); |
| 457 |
continue; |
| 458 |
} |
| 459 |
|
| 460 |
$rules[ $k ]['replace'] = substr( $rule['replace'], 0, 10240 ); |
| 461 |
} else { |
| 462 |
unset( $rules[ $k ]['replace'] ); |
| 463 |
} |
| 464 |
} |
| 465 |
|
| 466 |
return $rules; |
| 467 |
} |
| 468 |
|
| 469 |
/** |
| 470 |
* Validate feed catch_all |
| 471 |
* |
| 472 |
* @param array $catch_all The catch_all value to. |
| 473 |
* @return array A valid catch_all |
| 474 |
*/ |
| 475 |
public static function validate_feed_catch_all( $catch_all ) { |
| 476 |
if ( ! in_array( $catch_all, array( 'accept', 'trash', 'delete' ), true ) ) { |
| 477 |
return 'accept'; |
| 478 |
} |
| 479 |
|
| 480 |
return $catch_all; |
| 481 |
} |
| 482 |
|
| 483 |
/** |
| 484 |
* Gets the notification keywords. |
| 485 |
* |
| 486 |
* @return array The notification keywords. |
| 487 |
*/ |
| 488 |
public static function get_active_notification_keywords() { |
| 489 |
$active_keywords = array(); |
| 490 |
foreach ( self::get_all_notification_keywords() as $entry ) { |
| 491 |
if ( $entry['enabled'] ) { |
| 492 |
$active_keywords[] = $entry['keyword']; |
| 493 |
} |
| 494 |
} |
| 495 |
|
| 496 |
return $active_keywords; |
| 497 |
} |
| 498 |
|
| 499 |
/** |
| 500 |
* Gets all notification keywords. |
| 501 |
* |
| 502 |
* @return array All notification keywords. |
| 503 |
*/ |
| 504 |
public static function get_all_notification_keywords() { |
| 505 |
$keywords = get_option( 'friends_notification_keywords', false ); |
| 506 |
if ( false === $keywords ) { |
| 507 |
// Default keywords. |
| 508 |
$keywords = array(); |
| 509 |
$keywords[] = array( |
| 510 |
'enabled' => false, |
| 511 |
'keyword' => trim( preg_replace( '#^https?:#', '', home_url() ), '/' ), |
| 512 |
); |
| 513 |
} |
| 514 |
return $keywords; |
| 515 |
} |
| 516 |
|
| 517 |
/** |
| 518 |
* Discover the post format for the item. |
| 519 |
* |
| 520 |
* @param object $item The feed item. |
| 521 |
* |
| 522 |
* @return string The discovered post format. |
| 523 |
*/ |
| 524 |
public function post_format_discovery( $item ) { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.Found |
| 525 |
// Not implemented yet. |
| 526 |
return 'standard'; |
| 527 |
} |
| 528 |
|
| 529 |
/** |
| 530 |
* Return the number of revisions to keep. |
| 531 |
* |
| 532 |
* @return int The number of revisions to keep. |
| 533 |
*/ |
| 534 |
public function revisions_to_keep() { |
| 535 |
return 10; |
| 536 |
} |
| 537 |
|
| 538 |
public function dissallowed_html( $allowedposttags, $context ) { |
| 539 |
if ( 'post' === $context ) { |
| 540 |
unset( $allowedposttags['article'] ); |
| 541 |
} |
| 542 |
return $allowedposttags; |
| 543 |
} |
| 544 |
|
| 545 |
/** |
| 546 |
* Process incoming feed items |
| 547 |
* |
| 548 |
* @param array $items The incoming items. |
| 549 |
* @param User_Feed $user_feed The feed to which these items belong. |
| 550 |
* @return array The post ids of the new posts. |
| 551 |
*/ |
| 552 |
public function process_incoming_feed_items( array $items, User_Feed $user_feed ) { |
| 553 |
$friend_user = $user_feed->get_friend_user(); |
| 554 |
if ( ! $friend_user ) { |
| 555 |
if ( apply_filters( 'friends_debug', false ) ) { |
| 556 |
error_log( var_export( $user_feed, true ) ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions |
| 557 |
} |
| 558 |
return; |
| 559 |
} |
| 560 |
$remote_post_ids = $friend_user->get_remote_post_ids(); |
| 561 |
$post_formats = get_post_format_strings(); |
| 562 |
$feed_post_format = $user_feed->get_post_format(); |
| 563 |
|
| 564 |
// Sort items by date asc so that older posts will have lower ids than newer posts. |
| 565 |
usort( |
| 566 |
$items, |
| 567 |
function ( $a, $b ) { |
| 568 |
if ( ! isset( $a->date ) || ! isset( $b->date ) ) { |
| 569 |
return 0; |
| 570 |
} |
| 571 |
return strtotime( $a->date ) - strtotime( $b->date ); |
| 572 |
} |
| 573 |
); |
| 574 |
|
| 575 |
// Limit this as a safety measure. |
| 576 |
add_filter( 'wp_revisions_to_keep', array( $this, 'revisions_to_keep' ) ); |
| 577 |
$new_post_ids = array(); |
| 578 |
$modified_posts = array(); |
| 579 |
$manual_refresh = isset( $_GET['page'] ) && 'friends-refresh' === $_GET['page'] && isset( $_GET['_wpnonce'] ) && wp_verify_nonce( sanitize_key( $_GET['_wpnonce'] ), 'friends-refresh' ); |
| 580 |
foreach ( $items as $item_key => $item ) { |
| 581 |
if ( ! isset( $item->permalink ) || ! $item->permalink ) { |
| 582 |
continue; |
| 583 |
} |
| 584 |
$item->permalink = str_replace( array( '&', '&' ), '&', ent2ncr( wp_kses_normalize_entities( $item->permalink ) ) ); |
| 585 |
|
| 586 |
if ( empty( $item->post_content ) ) { |
| 587 |
$item->post_content = ''; |
| 588 |
} |
| 589 |
|
| 590 |
add_filter( 'wp_kses_allowed_html', array( $this, 'dissallowed_html' ), 10, 2 ); |
| 591 |
$item->post_content = wp_kses_post( trim( $item->post_content ) ); |
| 592 |
remove_filter( 'wp_kses_allowed_html', array( $this, 'dissallowed_html' ), 10 ); |
| 593 |
|
| 594 |
$item = apply_filters( 'friends_early_modify_feed_item', $item, $user_feed, $friend_user ); |
| 595 |
if ( ! $item || $item->_feed_rule_delete ) { |
| 596 |
continue; |
| 597 |
} |
| 598 |
|
| 599 |
// Fallback, when no friends plugin is installed. |
| 600 |
$item->post_id = $item->permalink; |
| 601 |
$item->post_status = 'publish'; |
| 602 |
if ( ( ! $item->post_content && ! $item->title ) || ! $item->permalink ) { |
| 603 |
continue; |
| 604 |
} |
| 605 |
|
| 606 |
$post_id = null; |
| 607 |
if ( $item->post_id && isset( $remote_post_ids[ $item->post_id ] ) ) { |
| 608 |
$post_id = $remote_post_ids[ $item->post_id ]; |
| 609 |
} |
| 610 |
if ( is_null( $post_id ) && $item->permalink && isset( $remote_post_ids[ $item->permalink ] ) ) { |
| 611 |
$post_id = $remote_post_ids[ $item->permalink ]; |
| 612 |
} |
| 613 |
|
| 614 |
if ( is_null( $post_id ) ) { |
| 615 |
$post_id = self::url_to_postid( $item->permalink ); |
| 616 |
} |
| 617 |
$item->_is_new = is_null( $post_id ); |
| 618 |
$item = apply_filters( 'friends_modify_feed_item', $item, $user_feed, $friend_user, $post_id ); |
| 619 |
|
| 620 |
$updated_date = $item->date; |
| 621 |
if ( ! empty( $item->updated_date ) ) { |
| 622 |
$updated_date = $item->updated_date; |
| 623 |
} |
| 624 |
|
| 625 |
if ( empty( $item->title ) ) { |
| 626 |
$item->title = ''; |
| 627 |
} |
| 628 |
|
| 629 |
$post_data = array( |
| 630 |
'post_title' => $item->title, |
| 631 |
'post_content' => force_balance_tags( $item->post_content ), |
| 632 |
'post_modified_gmt' => $updated_date, |
| 633 |
'post_status' => $item->post_status, |
| 634 |
'guid' => $item->permalink, |
| 635 |
'comment_count' => $item->comment_count, |
| 636 |
); |
| 637 |
|
| 638 |
// Modified via feed rules. |
| 639 |
if ( ! empty( $item->_feed_rule_transform ) && is_array( $item->_feed_rule_transform ) ) { |
| 640 |
$post_data = array_merge( $post_data, $item->_feed_rule_transform ); |
| 641 |
} |
| 642 |
|
| 643 |
$old_post = null; |
| 644 |
if ( ! is_null( $post_id ) ) { |
| 645 |
$old_post = get_post( $post_id ); |
| 646 |
$modified_post_data = array(); |
| 647 |
foreach ( array( 'post_title', 'post_content', 'post_status' ) as $field ) { |
| 648 |
if ( empty( $old_post->$field ) || empty( $post_data[ $field ] ) ) { |
| 649 |
continue; |
| 650 |
} |
| 651 |
if ( 'post_content' === $field && $old_post->$field !== $post_data[ $field ] ) { |
| 652 |
$modified_post_data[ $field ] = $post_data[ $field ]; |
| 653 |
break; |
| 654 |
} |
| 655 |
|
| 656 |
if ( wp_strip_all_tags( $old_post->$field ) !== wp_strip_all_tags( $post_data[ $field ] ) ) { |
| 657 |
$modified_post_data[ $field ] = $post_data[ $field ]; |
| 658 |
break; |
| 659 |
} |
| 660 |
} |
| 661 |
|
| 662 |
if ( ! empty( $modified_post_data ) && apply_filters( 'friends_can_update_modified_feed_posts', true, $item, $user_feed, $friend_user, $post_id ) ) { |
| 663 |
$was_modified_by_user = false; |
| 664 |
foreach ( wp_get_post_revisions( $post_id ) as $revision ) { |
| 665 |
if ( intval( $revision->post_author ) && intval( $revision->post_author ) !== $friend_user->ID ) { |
| 666 |
$was_modified_by_user = true; |
| 667 |
break; |
| 668 |
} |
| 669 |
} |
| 670 |
|
| 671 |
if ( ! $was_modified_by_user || $manual_refresh ) { |
| 672 |
$modified_post_data['ID'] = $post_id; |
| 673 |
if ( isset( $modified_post_data['post_content'] ) ) { |
| 674 |
$modified_post_data['post_content'] = str_replace( '\\', '\\\\', $modified_post_data['post_content'] ); |
| 675 |
} |
| 676 |
if ( intval( $old_post->comment_count ) !== intval( $item->comment_count ) ) { |
| 677 |
$modified_post_data['comment_count'] = $item->comment_count; |
| 678 |
} |
| 679 |
|
| 680 |
wp_update_post( $modified_post_data ); |
| 681 |
$modified_posts[ $item_key ] = $post_id; |
| 682 |
} |
| 683 |
} |
| 684 |
} else { |
| 685 |
$post_data['post_type'] = Friends::CPT; |
| 686 |
$post_data['post_date_gmt'] = $item->date; |
| 687 |
$post_data['post_content'] = str_replace( '\\', '\\\\', $post_data['post_content'] ); |
| 688 |
$post_data['meta_input'] = $item->meta; |
| 689 |
|
| 690 |
$post_id = $friend_user->insert_post( $post_data, true ); |
| 691 |
if ( is_wp_error( $post_id ) ) { |
| 692 |
continue; |
| 693 |
} |
| 694 |
|
| 695 |
$new_post_ids[ $item_key ] = $post_id; |
| 696 |
|
| 697 |
$remote_post_ids[ $item->permalink ] = $post_id; |
| 698 |
} |
| 699 |
|
| 700 |
if ( is_null( $old_post ) || intval( $old_post->comment_count ) !== intval( $item->comment_count ) ) { |
| 701 |
// The comment_count needs to be updated manually since it doesn't represent real comments in the database. |
| 702 |
global $wpdb; |
| 703 |
$wpdb->update( $wpdb->posts, array( 'comment_count' => $item->comment_count ), array( 'ID' => $post_id ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching |
| 704 |
wp_cache_delete( "comments-{$post_id}", 'counts' ); |
| 705 |
clean_post_cache( $post_id ); |
| 706 |
do_action( 'wp_update_comment_count', $post_id, $item->comment_count, $old_post ? $old_post->comment_count : 0 ); |
| 707 |
} |
| 708 |
|
| 709 |
if ( $item->comments_feed && ( is_null( $old_post ) || $old_post->comments_feed !== $item->comments_feed ) ) { |
| 710 |
update_post_meta( $post_id, self::COMMENTS_FEED_META, $item->comments_feed, $old_post ? $old_post->comments_feed : '' ); |
| 711 |
} |
| 712 |
|
| 713 |
$post_format = $feed_post_format; |
| 714 |
if ( 'autodetect' === $post_format ) { |
| 715 |
if ( isset( $item->post_format ) && isset( $post_formats[ $item->post_format ] ) ) { |
| 716 |
$post_format = $item->post_format; |
| 717 |
} else { |
| 718 |
$post_format = $this->post_format_discovery( $item ); |
| 719 |
} |
| 720 |
} |
| 721 |
|
| 722 |
if ( $post_format ) { |
| 723 |
set_post_format( $post_id, $post_format ); |
| 724 |
} |
| 725 |
|
| 726 |
if ( $item->author ) { |
| 727 |
update_post_meta( $post_id, 'author', $item->author ); |
| 728 |
} |
| 729 |
|
| 730 |
if ( is_numeric( $item->post_id ) ) { |
| 731 |
update_post_meta( $post_id, 'remote_post_id', $item->{'post-id'} ); |
| 732 |
} |
| 733 |
|
| 734 |
if ( ! get_option( 'friends_disable_auto_tagging' ) && isset( $item->friend_tags ) && ! empty( $item->friend_tags ) && is_array( $item->friend_tags ) ) { |
| 735 |
Friend_Tag::add_tags( $post_id, $item->friend_tags ); |
| 736 |
} |
| 737 |
|
| 738 |
if ( isset( $item->friend_mention_tags ) && ! empty( $item->friend_mention_tags ) && is_array( $item->friend_mention_tags ) ) { |
| 739 |
Friend_Tag::add_tags( $post_id, $item->friend_mention_tags ); |
| 740 |
} |
| 741 |
|
| 742 |
update_post_meta( $post_id, 'parser', $user_feed->get_parser() ); |
| 743 |
update_post_meta( $post_id, 'feed_url', $user_feed->get_url() ); |
| 744 |
|
| 745 |
global $wpdb; |
| 746 |
$wpdb->update( $wpdb->posts, array( 'comment_count' => $item->comment_count ), array( 'ID' => $post_id ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching |
| 747 |
} |
| 748 |
remove_filter( 'wp_revisions_to_keep', array( $this, 'revisions_to_keep' ) ); |
| 749 |
|
| 750 |
$deleted_posts = $friend_user->delete_outdated_posts(); |
| 751 |
$new_post_ids = array_diff( $new_post_ids, $deleted_posts ); |
| 752 |
|
| 753 |
$this->notify_about_new_posts( $friend_user, $new_post_ids, $user_feed ); |
| 754 |
|
| 755 |
do_action( 'friends_retrieved_new_posts', $user_feed, $new_post_ids, $modified_posts, $friend_user ); |
| 756 |
|
| 757 |
$new_posts = array(); |
| 758 |
foreach ( $new_post_ids as $key => $post_id ) { |
| 759 |
if ( isset( $items[ $key ] ) ) { |
| 760 |
$new_posts[ $post_id ] = $items[ $key ]; |
| 761 |
} |
| 762 |
} |
| 763 |
|
| 764 |
return $new_posts; |
| 765 |
} |
| 766 |
|
| 767 |
/** |
| 768 |
* Output an additional XMLNS for the feed. |
| 769 |
*/ |
| 770 |
public function additional_feed_namespaces() { |
| 771 |
echo ' xmlns:friends="' . esc_attr( self::XMLNS ) . '" '; |
| 772 |
} |
| 773 |
|
| 774 |
/** |
| 775 |
* Additional fields for the friends feed. |
| 776 |
*/ |
| 777 |
public function feed_additional_fields() { |
| 778 |
global $post; |
| 779 |
$post_format = get_post_format( $post ); |
| 780 |
if ( empty( $post_format ) ) { |
| 781 |
$post_format = 'standard'; |
| 782 |
} |
| 783 |
echo '<friends:post-format>' . esc_html( $post_format ) . '</friends:post-format>' . PHP_EOL; |
| 784 |
} |
| 785 |
|
| 786 |
/** |
| 787 |
* Redirect |
| 788 |
*/ |
| 789 |
public function friends_add_friend_redirect() { |
| 790 |
// phpcs:ignore WordPress.Security.NonceVerification.Recommended |
| 791 |
if ( ! isset( $_GET['add-friend'] ) || isset( $_GET['page'] ) ) { |
| 792 |
return; |
| 793 |
} |
| 794 |
// phpcs:ignore WordPress.Security.NonceVerification.Recommended |
| 795 |
wp_safe_redirect( add_query_arg( 'url', sanitize_text_field( wp_unslash( $_GET['add-friend'] ) ), self_admin_url( 'admin.php?page=add-friend' ) ) ); |
| 796 |
exit; |
| 797 |
} |
| 798 |
|
| 799 |
/** |
| 800 |
* Configure feed downloading options |
| 801 |
* |
| 802 |
* @param SimplePie $feed The SimplePie object. |
| 803 |
*/ |
| 804 |
public function wp_feed_options( $feed ) { |
| 805 |
$feed->useragent .= ' Friends/' . FRIENDS_VERSION; |
| 806 |
if ( |
| 807 |
isset( $_GET['_wpnonce'] ) && wp_verify_nonce( sanitize_key( $_GET['_wpnonce'] ), 'friends-refresh' ) && |
| 808 |
isset( $_GET['page'] ) && 'page=friends-refresh' === $_GET['page'] |
| 809 |
) { |
| 810 |
$feed->enable_cache( false ); |
| 811 |
} else { |
| 812 |
$feed->set_cache_duration( 3590 ); |
| 813 |
} |
| 814 |
} |
| 815 |
|
| 816 |
/** |
| 817 |
* Invalidatee Post Count Cache |
| 818 |
* |
| 819 |
* @param int $post_ID The post id. |
| 820 |
* @param \WP_Post $post The post. |
| 821 |
*/ |
| 822 |
public function invalidate_post_count_cache( $post_ID, \WP_Post $post ) { |
| 823 |
$cache_key = 'friends_post_count_by_post_format'; |
| 824 |
delete_transient( $cache_key ); |
| 825 |
if ( is_numeric( $post->post_author ) && $post->post_author > 0 ) { |
| 826 |
$author_id = intval( $post->post_author ); |
| 827 |
delete_transient( $cache_key . '_author_' . $author_id ); |
| 828 |
} |
| 829 |
} |
| 830 |
|
| 831 |
/** |
| 832 |
* Discover available feeds. |
| 833 |
* |
| 834 |
* @param string $url The feed URL. |
| 835 |
* @return array The available feeds. |
| 836 |
*/ |
| 837 |
public function discover_available_feeds( $url ) { |
| 838 |
if ( ! Friends::check_url( $url ) ) { |
| 839 |
return array(); |
| 840 |
} |
| 841 |
$available_feeds = array(); |
| 842 |
$content = null; |
| 843 |
$content_type = 'text/html'; |
| 844 |
|
| 845 |
$response = wp_safe_remote_get( |
| 846 |
$url, |
| 847 |
array( |
| 848 |
'timeout' => apply_filters( 'friends_http_timeout', 20 ), |
| 849 |
'redirection' => 2, |
| 850 |
) |
| 851 |
); |
| 852 |
|
| 853 |
if ( is_wp_error( $response ) ) { |
| 854 |
$response->add_data( $url ); |
| 855 |
return $response; |
| 856 |
} |
| 857 |
|
| 858 |
$response_code = wp_remote_retrieve_response_code( $response ); |
| 859 |
if ( $response_code >= 300 && $response_code < 400 ) { |
| 860 |
$location = wp_remote_retrieve_header( $response, 'location' ); |
| 861 |
if ( $location ) { |
| 862 |
return new \WP_Error( |
| 863 |
'redirect', |
| 864 |
sprintf( |
| 865 |
// translators: %s is a URL. |
| 866 |
__( 'This URL redirects to %s — please use that URL instead.', 'friends' ), |
| 867 |
'<a href="' . esc_url( admin_url( 'admin.php?page=add-friend&url=' . rawurlencode( $location ) ) ) . '">' . esc_html( $location ) . '</a>' |
| 868 |
) |
| 869 |
); |
| 870 |
} |
| 871 |
} |
| 872 |
|
| 873 |
if ( 200 === $response_code ) { |
| 874 |
$content = wp_remote_retrieve_body( $response ); |
| 875 |
$headers = wp_remote_retrieve_headers( $response ); |
| 876 |
|
| 877 |
// We'll determine the obvious feeds ourself. |
| 878 |
$available_feeds = $this->discover_link_rel_feeds( $content, $url, $headers ); |
| 879 |
$content_type = strtok( $headers['content-type'], ';' ); |
| 880 |
} |
| 881 |
|
| 882 |
foreach ( $this->parsers as $slug => $parser ) { |
| 883 |
foreach ( $parser->discover_available_feeds( $content, $url ) as $link_url => $feed ) { |
| 884 |
if ( isset( $available_feeds[ $link_url ] ) ) { |
| 885 |
// If this parser tells us it can parse it right away, allow it to override. |
| 886 |
if ( isset( $available_feeds[ $link_url ]['parser'] ) || ! isset( $feed['parser'] ) ) { |
| 887 |
continue; |
| 888 |
} |
| 889 |
} else { |
| 890 |
$available_feeds[ $link_url ] = array(); |
| 891 |
} |
| 892 |
$available_feeds[ $link_url ] = array_merge( $available_feeds[ $link_url ], $feed ); |
| 893 |
$available_feeds[ $link_url ]['url'] = $link_url; |
| 894 |
} |
| 895 |
} |
| 896 |
|
| 897 |
$has_friends_plugin = false; |
| 898 |
foreach ( $available_feeds as $link_url => $feed ) { |
| 899 |
$feed = array_merge( |
| 900 |
array( |
| 901 |
'url' => $link_url, |
| 902 |
'rel' => 'unknown', |
| 903 |
'type' => 'unknown', |
| 904 |
'title' => '', |
| 905 |
'parser' => 'unsupported', |
| 906 |
'parser_confidence' => 0, |
| 907 |
), |
| 908 |
$feed |
| 909 |
); |
| 910 |
$available_feeds[ $link_url ] = $feed; |
| 911 |
|
| 912 |
if ( 'friends-base-url' === $feed['rel'] ) { |
| 913 |
$available_feeds[ $link_url ]['parser'] = 'friends'; |
| 914 |
$available_feeds[ $link_url ]['parser_confidence'] = 1000; |
| 915 |
$has_friends_plugin = $link_url; |
| 916 |
continue; |
| 917 |
} |
| 918 |
|
| 919 |
foreach ( $this->parsers as $slug => $parser ) { |
| 920 |
$confidence = intval( $parser->feed_support_confidence( $link_url, $feed['type'], $feed['rel'] ) ); |
| 921 |
$confidence = intval( apply_filters( 'friends_parser_confidence', $confidence, $slug, $link_url, $feed ) ); |
| 922 |
if ( $available_feeds[ $link_url ]['parser_confidence'] < $confidence ) { |
| 923 |
$available_feeds[ $link_url ]['parser_confidence'] = $confidence; |
| 924 |
$available_feeds[ $link_url ]['parser'] = $slug; |
| 925 |
} |
| 926 |
} |
| 927 |
} |
| 928 |
|
| 929 |
if ( ! isset( $available_feeds[ $url ] ) ) { |
| 930 |
$feed = array( |
| 931 |
'url' => $url, |
| 932 |
'type' => $content_type, |
| 933 |
'rel' => 'self', |
| 934 |
'title' => '', |
| 935 |
'parser' => 'unsupported', |
| 936 |
'parser_confidence' => 0, |
| 937 |
); |
| 938 |
|
| 939 |
foreach ( $this->parsers as $slug => $parser ) { |
| 940 |
$confidence = $parser->feed_support_confidence( $url, $feed['type'], $feed['rel'], $content ); |
| 941 |
$confidence = apply_filters( 'friends_parser_confidence', $confidence, $slug, $url, $feed ); |
| 942 |
if ( $feed['parser_confidence'] < $confidence ) { |
| 943 |
$feed['parser_confidence'] = $confidence; |
| 944 |
$feed['parser'] = $slug; |
| 945 |
} |
| 946 |
} |
| 947 |
|
| 948 |
if ( 'unknown' !== $feed['parser'] ) { |
| 949 |
$available_feeds[ $feed['url'] ] = $feed; |
| 950 |
} |
| 951 |
} |
| 952 |
|
| 953 |
foreach ( array_keys( $available_feeds ) as $link_url ) { |
| 954 |
if ( ! isset( $this->parsers[ $available_feeds[ $link_url ]['parser'] ] ) ) { |
| 955 |
continue; |
| 956 |
} |
| 957 |
$parser = $this->parsers[ $available_feeds[ $link_url ]['parser'] ]; |
| 958 |
$updated_feed_details = $parser->update_feed_details( $available_feeds[ $link_url ] ); |
| 959 |
if ( is_array( $updated_feed_details ) && ! is_wp_error( $updated_feed_details ) ) { |
| 960 |
$available_feeds[ $link_url ] = array_merge( $available_feeds[ $link_url ], $updated_feed_details ); |
| 961 |
} |
| 962 |
$available_feeds[ $link_url ] = apply_filters( 'friends_update_feed_details', $available_feeds[ $link_url ], $slug ); |
| 963 |
if ( $available_feeds[ $link_url ]['url'] !== $link_url ) { |
| 964 |
$new_url = $available_feeds[ $link_url ]['url']; |
| 965 |
$available_feeds[ $new_url ] = $available_feeds[ $link_url ]; |
| 966 |
unset( $available_feeds[ $link_url ] ); |
| 967 |
} |
| 968 |
} |
| 969 |
|
| 970 |
$autoselected = false; |
| 971 |
// Check if a parser already autoselected a feed. |
| 972 |
foreach ( $available_feeds as $link_url => $feed ) { |
| 973 |
if ( isset( $feed['autoselect'] ) && $feed['autoselect'] ) { |
| 974 |
$autoselected = true; |
| 975 |
break; |
| 976 |
} |
| 977 |
} |
| 978 |
|
| 979 |
foreach ( $available_feeds as $link_url => $feed ) { |
| 980 |
$path = wp_parse_url( $link_url, PHP_URL_PATH ); |
| 981 |
|
| 982 |
// Backfill titles. |
| 983 |
if ( empty( $feed['title'] ) ) { |
| 984 |
$host = wp_parse_url( $link_url, PHP_URL_HOST ); |
| 985 |
if ( is_string( $path ) && trim( $path, '/' ) ) { |
| 986 |
$feed['title'] = trim( preg_replace( '#^www\.#i', '', preg_replace( '#[^a-z0-9.:-]#i', ' ', ucwords( $host . ': ' . $path ) ) ), ': ' ); |
| 987 |
} else { |
| 988 |
$feed['title'] = strtolower( $host ); |
| 989 |
} |
| 990 |
$available_feeds[ $link_url ]['title'] = $feed['title']; |
| 991 |
} |
| 992 |
|
| 993 |
// Autoselect heuristic. |
| 994 |
if ( $autoselected ) { |
| 995 |
continue; |
| 996 |
} |
| 997 |
|
| 998 |
if ( ! $feed['parser_confidence'] ) { |
| 999 |
continue; |
| 1000 |
} |
| 1001 |
|
| 1002 |
// Prefer the main RSS feed. |
| 1003 |
if ( |
| 1004 |
'/feed' === substr( '/' . trim( $path, '/' ), -5 ) |
| 1005 |
|| '.xml' === substr( $path, -4 ) |
| 1006 |
|| 'rss' === substr( $path, -3 ) |
| 1007 |
) { |
| 1008 |
if ( $has_friends_plugin ) { |
| 1009 |
$available_feeds[ $link_url ]['post-format'] = 'autodetect'; |
| 1010 |
} |
| 1011 |
$autoselected = true; |
| 1012 |
} elseif ( isset( $feed['rel'] ) ) { |
| 1013 |
if ( 'alternate' === $feed['rel'] && 'application/rss+xml' === $feed['type'] && 'feed' === trim( $path, '/' ) ) { |
| 1014 |
$autoselected = true; |
| 1015 |
} |
| 1016 |
} |
| 1017 |
|
| 1018 |
if ( $autoselected ) { |
| 1019 |
$available_feeds[ $link_url ]['autoselect'] = true; |
| 1020 |
} |
| 1021 |
} |
| 1022 |
|
| 1023 |
$feed_sort_order = array( 'self', 'alternate', 'me' ); |
| 1024 |
if ( $has_friends_plugin ) { |
| 1025 |
// If we have the Friends plugin, we prefer an (augmented) RSS feed over, for example, microformats. |
| 1026 |
$feed_sort_order = array( 'alternate', 'self', 'me' ); |
| 1027 |
} |
| 1028 |
|
| 1029 |
uasort( |
| 1030 |
$available_feeds, |
| 1031 |
function ( $a, $b ) use ( $feed_sort_order ) { |
| 1032 |
if ( isset( $a['autoselect'] ) && $a['autoselect'] ) { |
| 1033 |
if ( ! isset( $b['autoselect'] ) || ! $b['autoselect'] ) { |
| 1034 |
return -1; |
| 1035 |
} |
| 1036 |
} elseif ( isset( $b['autoselect'] ) && $b['autoselect'] ) { |
| 1037 |
return 1; |
| 1038 |
} |
| 1039 |
|
| 1040 |
foreach ( $feed_sort_order as $rel_sort ) { |
| 1041 |
if ( $rel_sort === $a['rel'] ) { |
| 1042 |
if ( $rel_sort !== $b['rel'] ) { |
| 1043 |
return -1; |
| 1044 |
} |
| 1045 |
break; |
| 1046 |
} elseif ( $rel_sort === $b['rel'] ) { |
| 1047 |
return 1; |
| 1048 |
} |
| 1049 |
} |
| 1050 |
|
| 1051 |
return strcmp( $a['title'], $b['title'] ); |
| 1052 |
} |
| 1053 |
); |
| 1054 |
|
| 1055 |
return apply_filters( 'friends_available_feeds', $available_feeds, $url ); |
| 1056 |
} |
| 1057 |
|
| 1058 |
/** |
| 1059 |
* Discover feeds specified in the <link> section. |
| 1060 |
* |
| 1061 |
* @param string $content The content to search. |
| 1062 |
* @param string $url The url. |
| 1063 |
* @param object $headers The headers from the request. |
| 1064 |
* |
| 1065 |
* @return array ( description_of_the_return_value ) |
| 1066 |
*/ |
| 1067 |
private function discover_link_rel_feeds( $content, $url, $headers ) { |
| 1068 |
$discovered_feeds = array(); |
| 1069 |
$has_self = false; |
| 1070 |
$links = array(); |
| 1071 |
$mf = Mf2\parse( $content, $url ); |
| 1072 |
|
| 1073 |
if ( isset( $mf['rel-urls'] ) ) { |
| 1074 |
$links = array_merge( $links, $mf['rel-urls'] ); |
| 1075 |
} |
| 1076 |
foreach ( $headers as $header => $value ) { |
| 1077 |
if ( 'link' === strtolower( $header ) ) { |
| 1078 |
$values = wp_parse_args( $value ); |
| 1079 |
if ( isset( $values['href'] ) ) { |
| 1080 |
if ( ! isset( $values['rels'] ) && $values['rel'] ) { |
| 1081 |
$values['rels'] = array( $values['rel'] ); |
| 1082 |
unset( $values['rel'] ); |
| 1083 |
} |
| 1084 |
if ( isset( $values['rels'] ) ) { |
| 1085 |
if ( isset( $links[ $values['href'] ] ) ) { |
| 1086 |
foreach ( $values['rels'] as $rel ) { |
| 1087 |
$links[ $values['href'] ]['rels'][] = $rel; |
| 1088 |
} |
| 1089 |
} else { |
| 1090 |
$links[ $values['href'] ] = $values; |
| 1091 |
} |
| 1092 |
} |
| 1093 |
} |
| 1094 |
} |
| 1095 |
} |
| 1096 |
|
| 1097 |
foreach ( $links as $feed_url => $link ) { |
| 1098 |
foreach ( array( 'friends-base-url', 'me', 'alternate', 'self' ) as $rel ) { |
| 1099 |
if ( in_array( $rel, $link['rels'] ) ) { |
| 1100 |
$discovered_feeds[ $feed_url ] = array( |
| 1101 |
'rel' => $rel, |
| 1102 |
); |
| 1103 |
} |
| 1104 |
} |
| 1105 |
|
| 1106 |
if ( ! isset( $discovered_feeds[ $feed_url ] ) ) { |
| 1107 |
continue; |
| 1108 |
} |
| 1109 |
|
| 1110 |
if ( 'self' === $discovered_feeds[ $feed_url ]['rel'] ) { |
| 1111 |
$has_self = true; |
| 1112 |
} |
| 1113 |
|
| 1114 |
if ( isset( $link['type'] ) ) { |
| 1115 |
$discovered_feeds[ $feed_url ]['type'] = $link['type']; |
| 1116 |
} |
| 1117 |
|
| 1118 |
if ( isset( $link['title'] ) ) { |
| 1119 |
$discovered_feeds[ $feed_url ]['title'] = $link['title']; |
| 1120 |
} elseif ( isset( $link['text'] ) ) { |
| 1121 |
$discovered_feeds[ $feed_url ]['title'] = $link['text']; |
| 1122 |
} |
| 1123 |
} |
| 1124 |
|
| 1125 |
if ( ! $has_self ) { |
| 1126 |
$discovered_feeds[ $url ] = array( |
| 1127 |
'rel' => 'self', |
| 1128 |
); |
| 1129 |
} |
| 1130 |
if ( empty( $discovered_feeds[ $url ]['title'] ) && ! empty( $mf['metas']['application-name'][0] ) ) { |
| 1131 |
$discovered_feeds[ $url ]['title'] = $mf['metas']['application-name'][0]; |
| 1132 |
} |
| 1133 |
if ( empty( $discovered_feeds[ $url ]['title'] ) && ! empty( $mf['metas']['og:title'][0] ) ) { |
| 1134 |
$discovered_feeds[ $url ]['title'] = $mf['metas']['og:title'][0]; |
| 1135 |
} |
| 1136 |
if ( empty( $discovered_feeds[ $url ]['title'] ) && ! empty( $mf['title'] ) ) { |
| 1137 |
$discovered_feeds[ $url ]['title'] = $mf['title']; |
| 1138 |
} |
| 1139 |
if ( empty( $discovered_feeds[ $url ]['avatar'] ) && ! empty( $mf['rels']['icon'] ) ) { |
| 1140 |
foreach ( $mf['rels']['icon'] as $icon_url ) { |
| 1141 |
if ( ! filter_var( $icon_url, FILTER_VALIDATE_URL ) ) { |
| 1142 |
continue; |
| 1143 |
} |
| 1144 |
|
| 1145 |
if ( ! isset( $mf['rel-urls'][ $icon_url ]['type'] ) || 0 !== strpos( $mf['rel-urls'][ $icon_url ]['type'], 'image/' ) ) { |
| 1146 |
continue; |
| 1147 |
} |
| 1148 |
|
| 1149 |
$discovered_feeds[ $url ]['avatar'] = $icon_url; |
| 1150 |
} |
| 1151 |
} |
| 1152 |
|
| 1153 |
return $discovered_feeds; |
| 1154 |
} |
| 1155 |
|
| 1156 |
/** |
| 1157 |
* More generic version of the native url_to_postid() |
| 1158 |
* |
| 1159 |
* @param string $url Permalink to check. |
| 1160 |
* @param int $author_id The id of the author. |
| 1161 |
* @return int Post ID, or 0 on failure. |
| 1162 |
*/ |
| 1163 |
public static function url_to_postid( $url, $author_id = false ) { |
| 1164 |
$cache_key = 'friends_url_to_postid_' . md5( $url ) . ( $author_id ? '_' . $author_id : '' ); |
| 1165 |
$post_id = wp_cache_get( $cache_key, 'friends' ); |
| 1166 |
if ( false !== $post_id ) { |
| 1167 |
return $post_id; |
| 1168 |
} |
| 1169 |
$post_types = apply_filters( 'friends_frontend_post_types', array() ); |
| 1170 |
$args = $post_types; |
| 1171 |
|
| 1172 |
global $wpdb; |
| 1173 |
$sql = sprintf( |
| 1174 |
'SELECT ID from ' . $wpdb->posts . ' WHERE post_type IN ( %s )', |
| 1175 |
implode( ',', array_fill( 0, count( $post_types ), '%s' ) ) |
| 1176 |
); |
| 1177 |
|
| 1178 |
if ( $author_id ) { |
| 1179 |
$args[] = $author_id; |
| 1180 |
$sql .= ' AND post_author = %d'; |
| 1181 |
} |
| 1182 |
|
| 1183 |
$sql .= ' AND guid IN (%s, %s) LIMIT 1'; |
| 1184 |
$args[] = $url; |
| 1185 |
$args[] = esc_attr( $url ); |
| 1186 |
|
| 1187 |
$post_id = $wpdb->get_var( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery |
| 1188 |
$wpdb->prepare( |
| 1189 |
$sql, // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared |
| 1190 |
$args |
| 1191 |
) |
| 1192 |
); |
| 1193 |
|
| 1194 |
wp_cache_set( $cache_key, $post_id, 'friends' ); |
| 1195 |
return $post_id; |
| 1196 |
} |
| 1197 |
|
| 1198 |
public function oembed_request_post_id( $post_id, $url ) { |
| 1199 |
if ( ! $post_id ) { |
| 1200 |
$post_id = self::url_to_postid( $url ); |
| 1201 |
global $wp_post_types; |
| 1202 |
$wp_post_types[ Friends::CPT ]->publicly_queryable = true; |
| 1203 |
} |
| 1204 |
return $post_id; |
| 1205 |
} |
| 1206 |
|
| 1207 |
public function post_embed_url( $embed_url, $post ) { |
| 1208 |
if ( ! in_array( $post->post_type, apply_filters( 'friends_frontend_post_types', array() ) ) ) { |
| 1209 |
return $embed_url; |
| 1210 |
} |
| 1211 |
|
| 1212 |
return add_query_arg( 'url', $post->guid, rest_url( Rest::PREFIX . '/embed' ) ); |
| 1213 |
} |
| 1214 |
|
| 1215 |
public function oembed_response_data( $data, $post, $width, $height ) { |
| 1216 |
$data['width'] = absint( $width ); |
| 1217 |
$data['height'] = absint( $height ); |
| 1218 |
$data['type'] = 'rich'; |
| 1219 |
|
| 1220 |
ob_start(); |
| 1221 |
Friends::template_loader()->get_template_part( 'oembed/status', null, array( 'post' => $post ) ); |
| 1222 |
$data['html'] = ob_get_contents(); |
| 1223 |
ob_end_clean(); |
| 1224 |
|
| 1225 |
$data['html'] = '<p>' . wp_kses_post( $post->post_content ) . '</p>'; |
| 1226 |
return $data; |
| 1227 |
} |
| 1228 |
|
| 1229 |
public function get_user_feed_by_url( $url ) { |
| 1230 |
return User_Feed::get_by_url( $url ); |
| 1231 |
} |
| 1232 |
|
| 1233 |
/** |
| 1234 |
* Gets the actual feed parser parser. |
| 1235 |
* |
| 1236 |
* @param string $parser The parser slug. |
| 1237 |
* |
| 1238 |
* @return Feed_Parser The actual parser. |
| 1239 |
*/ |
| 1240 |
public function get_feed_parser( $parser ) { |
| 1241 |
if ( ! isset( $this->parsers[ $parser ] ) ) { |
| 1242 |
return null; |
| 1243 |
} |
| 1244 |
return $this->parsers[ $parser ]; |
| 1245 |
} |
| 1246 |
|
| 1247 |
/** |
| 1248 |
* Gets the registered parser. |
| 1249 |
* |
| 1250 |
* @param string $parser The parser slug. |
| 1251 |
* |
| 1252 |
* @return string The parser name. |
| 1253 |
*/ |
| 1254 |
public function get_registered_parser( $parser ) { |
| 1255 |
if ( ! isset( $this->parsers[ $parser ] ) ) { |
| 1256 |
return null; |
| 1257 |
} |
| 1258 |
$parsers = $this->get_registered_parsers(); |
| 1259 |
return $parsers[ $parser ]; |
| 1260 |
} |
| 1261 |
|
| 1262 |
/** |
| 1263 |
* The list of currently supported parsers. |
| 1264 |
* |
| 1265 |
* @return array A list of parsers. Key is the slug, value is the parser name. |
| 1266 |
*/ |
| 1267 |
public function get_registered_parsers() { |
| 1268 |
$parsers = array(); |
| 1269 |
foreach ( $this->parsers as $slug => $parser ) { |
| 1270 |
$name = $slug; |
| 1271 |
if ( defined( get_class( $parser ) . '::NAME' ) ) { |
| 1272 |
$name = esc_html( $parser::NAME ); |
| 1273 |
} |
| 1274 |
if ( defined( get_class( $parser ) . '::URL' ) ) { |
| 1275 |
$name = '<a href="' . esc_url( $parser::URL ) . '" target="_blank" rel="noopener noreferrer">' . $name . '</a>'; |
| 1276 |
} |
| 1277 |
$parsers[ $slug ] = $name; |
| 1278 |
} |
| 1279 |
return $parsers; |
| 1280 |
} |
| 1281 |
|
| 1282 |
/** |
| 1283 |
* Get a parser instance by slug. |
| 1284 |
* |
| 1285 |
* @param string $slug The parser slug. |
| 1286 |
* @return Feed_Parser|null The parser instance or null. |
| 1287 |
*/ |
| 1288 |
public function get_parser_by_slug( $slug ) { |
| 1289 |
return isset( $this->parsers[ $slug ] ) ? $this->parsers[ $slug ] : null; |
| 1290 |
} |
| 1291 |
|
| 1292 |
/** |
| 1293 |
* Get the badge for a feed based on its parser. |
| 1294 |
* |
| 1295 |
* @param User_Feed $user_feed The user feed. |
| 1296 |
* @return array|null Badge info array or null. |
| 1297 |
*/ |
| 1298 |
public function get_feed_badge( $user_feed ) { |
| 1299 |
$parser_slug = $user_feed->get_parser(); |
| 1300 |
$parser = $this->get_parser_by_slug( $parser_slug ); |
| 1301 |
|
| 1302 |
$badge = null; |
| 1303 |
if ( $parser && method_exists( $parser, 'get_badge' ) ) { |
| 1304 |
$badge = $parser->get_badge(); |
| 1305 |
} |
| 1306 |
|
| 1307 |
/** |
| 1308 |
* Filter the badge displayed for a feed. |
| 1309 |
* |
| 1310 |
* @param array|null $badge The badge array with 'label', 'color', 'title' keys, or null. |
| 1311 |
* @param User_Feed $user_feed The user feed. |
| 1312 |
* @param string $parser The parser slug. |
| 1313 |
*/ |
| 1314 |
return apply_filters( 'friends_feed_badge', $badge, $user_feed, $parser_slug ); |
| 1315 |
} |
| 1316 |
} |
| 1317 |
|
