| @@ -1,11 +1,13 @@ | ||
| 1 | 1 | <?php |
| 2 | 2 | |
| 3 | 3 | namespace Activitypub; |
| 4 | 4 | |
| 5 | +use Activitypub\Collection\Users; | |
| 5 | 6 | use WP_Comment_Query; |
| 6 | 7 | |
| 7 | 8 | use function Activitypub\is_user_disabled; |
| 9 | +use function Activitypub\is_single_user; | |
| 8 | 10 | |
| 9 | 11 | /** |
| 10 | 12 | * ActivityPub Comment Class |
| 11 | 13 | * |
| @@ -19,8 +21,9 @@ | ||
| 19 | 21 | public static function init() { |
| 20 | 22 | \add_filter( 'comment_reply_link', array( self::class, 'comment_reply_link' ), 10, 3 ); |
| 21 | 23 | \add_filter( 'comment_class', array( self::class, 'comment_class' ), 10, 3 ); |
| 22 | 24 | \add_filter( 'get_comment_link', array( self::class, 'remote_comment_link' ), 11, 3 ); |
| 25 | + \add_action( 'wp_enqueue_scripts', array( self::class, 'enqueue_scripts' ) ); | |
| 23 | 26 | } |
| 24 | 27 | |
| 25 | 28 | /** |
| 26 | 29 | * Filter the comment reply link. |
| @@ -35,15 +38,51 @@ | ||
| 35 | 38 | * @return string The filtered HTML markup for the comment reply link. |
| 36 | 39 | */ |
| 37 | 40 | public static function comment_reply_link( $link, $args, $comment ) { |
| 38 | 41 | if ( self::are_comments_allowed( $comment ) ) { |
| 42 | + $user_id = get_current_user_id(); | |
| 43 | + if ( $user_id && self::was_received( $comment ) && \user_can( $user_id, 'activitypub' ) ) { | |
| 44 | + return self::create_fediverse_reply_link( $link, $args ); | |
| 45 | + } | |
| 46 | + | |
| 39 | 47 | return $link; |
| 40 | 48 | } |
| 41 | 49 | |
| 42 | - return apply_filters( 'activitypub_comment_reply_link', '' ); | |
| 50 | + $attrs = array( | |
| 51 | + 'selectedComment' => self::generate_id( $comment ), | |
| 52 | + 'commentId' => $comment->comment_ID, | |
| 53 | + ); | |
| 54 | + | |
| 55 | + $div = sprintf( | |
| 56 | + '<div class="activitypub-remote-reply" data-attrs="%s"></div>', | |
| 57 | + esc_attr( wp_json_encode( $attrs ) ) | |
| 58 | + ); | |
| 59 | + | |
| 60 | + return apply_filters( 'activitypub_comment_reply_link', $div ); | |
| 43 | 61 | } |
| 44 | 62 | |
| 45 | 63 | /** |
| 64 | + * Create a link to reply to a federated comment. | |
| 65 | + * This function adds a title attribute to the reply link to inform the user | |
| 66 | + * that the comment was received from the fediverse and the reply will be sent | |
| 67 | + * to the original author. | |
| 68 | + * | |
| 69 | + * @param string $link The HTML markup for the comment reply link. | |
| 70 | + * @param array $args The args provided by the `comment_reply_link` filter. | |
| 71 | + * | |
| 72 | + * @return string The modified HTML markup for the comment reply link. | |
| 73 | + */ | |
| 74 | + private static function create_fediverse_reply_link( $link, $args ) { | |
| 75 | + $str_to_replace = sprintf( '>%s<', $args['reply_text'] ); | |
| 76 | + $replace_with = sprintf( | |
| 77 | + ' title="%s">%s<', | |
| 78 | + esc_attr__( 'This comment was received from the fediverse and your reply will be sent to the original author', 'activitypub' ), | |
| 79 | + esc_html__( 'Reply with federation', 'activitypub' ) | |
| 80 | + ); | |
| 81 | + return str_replace( $str_to_replace, $replace_with, $link ); | |
| 82 | + } | |
| 83 | + | |
| 84 | + /** | |
| 46 | 85 | * Check if it is allowed to comment to a comment. |
| 47 | 86 | * |
| 48 | 87 | * Checks if the comment is local only or if the user can comment federated comments. |
| 49 | 88 | * |
| @@ -63,8 +102,13 @@ | ||
| 63 | 102 | if ( ! $current_user ) { |
| 64 | 103 | return false; |
| 65 | 104 | } |
| 66 | 105 | |
| 106 | + if ( is_single_user() && \user_can( $current_user, 'publish_posts' ) ) { | |
| 107 | + // On a single user site, comments by users with the `publish_posts` capability will be federated as the blog user | |
| 108 | + $current_user = Users::BLOG_USER_ID; | |
| 109 | + } | |
| 110 | + | |
| 67 | 111 | $is_user_disabled = is_user_disabled( $current_user ); |
| 68 | 112 | |
| 69 | 113 | if ( $is_user_disabled ) { |
| 70 | 114 | return false; |
| @@ -168,8 +212,13 @@ | ||
| 168 | 212 | if ( ! $user_id ) { |
| 169 | 213 | return false; |
| 170 | 214 | } |
| 171 | 215 | |
| 216 | + if ( is_single_user() && \user_can( $user_id, 'publish_posts' ) ) { | |
| 217 | + // On a single user site, comments by users with the `publish_posts` capability will be federated as the blog user | |
| 218 | + $user_id = Users::BLOG_USER_ID; | |
| 219 | + } | |
| 220 | + | |
| 172 | 221 | $is_user_disabled = is_user_disabled( $user_id ); |
| 173 | 222 | |
| 174 | 223 | // user is disabled for federation |
| 175 | 224 | if ( $is_user_disabled ) { |
| @@ -191,9 +240,9 @@ | ||
| 191 | 240 | * Examine a comment ID and look up an existing comment it represents. |
| 192 | 241 | * |
| 193 | 242 | * @param string $id ActivityPub object ID (usually a URL) to check. |
| 194 | 243 | * |
| 195 | - * @return int|boolean Comment ID, or false on failure. | |
| 244 | + * @return \WP_Comment|false Comment object, or false on failure. | |
| 196 | 245 | */ |
| 197 | 246 | public static function object_id_to_comment( $id ) { |
| 198 | 247 | $comment_query = new WP_Comment_Query( |
| 199 | 248 | array( |
| @@ -226,9 +275,9 @@ | ||
| 226 | 275 | return null; |
| 227 | 276 | } |
| 228 | 277 | |
| 229 | 278 | // check for local comment |
| 230 | - if ( \wp_parse_url( \site_url(), \PHP_URL_HOST ) === \wp_parse_url( $url, \PHP_URL_HOST ) ) { | |
| 279 | + if ( \wp_parse_url( \home_url(), \PHP_URL_HOST ) === \wp_parse_url( $url, \PHP_URL_HOST ) ) { | |
| 231 | 280 | $query = \wp_parse_url( $url, \PHP_URL_QUERY ); |
| 232 | 281 | |
| 233 | 282 | if ( $query ) { |
| 234 | 283 | parse_str( $query, $params ); |
| @@ -318,21 +367,99 @@ | ||
| 318 | 367 | * |
| 319 | 368 | * @return string ActivityPub URI for comment |
| 320 | 369 | */ |
| 321 | 370 | public static function generate_id( $comment ) { |
| 322 | - $comment = get_comment( $comment ); | |
| 371 | + $comment = \get_comment( $comment ); | |
| 372 | + $comment_meta = \get_comment_meta( $comment->comment_ID ); | |
| 323 | 373 | |
| 324 | 374 | // show external comment ID if it exists |
| 325 | - $source_id = get_comment_meta( $comment->comment_ID, 'source_id', true ); | |
| 326 | - if ( ! empty( $source_id ) ) { | |
| 327 | - return $source_id; | |
| 375 | + if ( ! empty( $comment_meta['source_id'][0] ) ) { | |
| 376 | + return $comment_meta['source_id'][0]; | |
| 377 | + } elseif ( ! empty( $comment_meta['source_url'][0] ) ) { | |
| 378 | + return $comment_meta['source_url'][0]; | |
| 328 | 379 | } |
| 329 | 380 | |
| 330 | 381 | // generate URI based on comment ID |
| 331 | - return \add_query_arg( | |
| 382 | + return \add_query_arg( 'c', $comment->comment_ID, \trailingslashit( \home_url() ) ); | |
| 383 | + } | |
| 384 | + | |
| 385 | + /** | |
| 386 | + * Check if a post has remote comments | |
| 387 | + * | |
| 388 | + * @param int $post_id The post ID. | |
| 389 | + * | |
| 390 | + * @return bool True if the post has remote comments, false otherwise. | |
| 391 | + */ | |
| 392 | + private static function post_has_remote_comments( $post_id ) { | |
| 393 | + $comments = \get_comments( | |
| 332 | 394 | array( |
| 333 | - 'c' => $comment->comment_ID, | |
| 334 | - ), | |
| 335 | - \trailingslashit( site_url() ) | |
| 395 | + 'post_id' => $post_id, | |
| 396 | + 'meta_query' => array( | |
| 397 | + 'relation' => 'AND', | |
| 398 | + array( | |
| 399 | + 'key' => 'protocol', | |
| 400 | + 'value' => 'activitypub', | |
| 401 | + 'compare' => '=', | |
| 402 | + ), | |
| 403 | + array( | |
| 404 | + 'key' => 'source_id', | |
| 405 | + 'compare' => 'EXISTS', | |
| 406 | + ), | |
| 407 | + ), | |
| 408 | + ) | |
| 336 | 409 | ); |
| 410 | + | |
| 411 | + return ! empty( $comments ); | |
| 412 | + } | |
| 413 | + | |
| 414 | + /** | |
| 415 | + * Enqueue scripts for remote comments | |
| 416 | + */ | |
| 417 | + public static function enqueue_scripts() { | |
| 418 | + if ( ! \is_singular() || \is_user_logged_in() ) { | |
| 419 | + // only on single pages, only for logged out users | |
| 420 | + return; | |
| 421 | + } | |
| 422 | + | |
| 423 | + if ( ! \post_type_supports( \get_post_type(), 'activitypub' ) ) { | |
| 424 | + // post type does not support ActivityPub | |
| 425 | + return; | |
| 426 | + } | |
| 427 | + | |
| 428 | + if ( ! \comments_open() || ! \get_comments_number() ) { | |
| 429 | + // no comments, no need to load the script | |
| 430 | + return; | |
| 431 | + } | |
| 432 | + | |
| 433 | + if ( ! self::post_has_remote_comments( \get_the_ID() ) ) { | |
| 434 | + // no remote comments, no need to load the script | |
| 435 | + return; | |
| 436 | + } | |
| 437 | + | |
| 438 | + $handle = 'activitypub-remote-reply'; | |
| 439 | + $data = array( | |
| 440 | + 'namespace' => ACTIVITYPUB_REST_NAMESPACE, | |
| 441 | + ); | |
| 442 | + $js = sprintf( 'var _activityPubOptions = %s;', wp_json_encode( $data ) ); | |
| 443 | + $asset_file = ACTIVITYPUB_PLUGIN_DIR . 'build/remote-reply/index.asset.php'; | |
| 444 | + | |
| 445 | + if ( \file_exists( $asset_file ) ) { | |
| 446 | + $assets = require_once $asset_file; | |
| 447 | + | |
| 448 | + \wp_enqueue_script( | |
| 449 | + $handle, | |
| 450 | + \plugins_url( 'build/remote-reply/index.js', __DIR__ ), | |
| 451 | + $assets['dependencies'], | |
| 452 | + $assets['version'], | |
| 453 | + true | |
| 454 | + ); | |
| 455 | + \wp_add_inline_script( $handle, $js, 'before' ); | |
| 456 | + | |
| 457 | + \wp_enqueue_style( | |
| 458 | + $handle, | |
| 459 | + \plugins_url( 'build/remote-reply/style-index.css', __DIR__ ), | |
| 460 | + [ 'wp-components' ], | |
| 461 | + $assets['version'] | |
| 462 | + ); | |
| 463 | + } | |
| 337 | 464 | } |
| 338 | 465 | } |
