| @@ -1,151 +1,453 @@ | ||
| 1 | 1 | <?php |
| 2 | +/** | |
| 3 | + * Blocks file. | |
| 4 | + * | |
| 5 | + * @package Activitypub | |
| 6 | + */ | |
| 7 | + | |
| 2 | 8 | namespace Activitypub; |
| 3 | 9 | |
| 4 | -use Activitypub\Collection\Followers; | |
| 5 | -use Activitypub\Collection\Users as User_Collection; | |
| 6 | -use Activitypub\is_user_type_disabled; | |
| 10 | +use Activitypub\Collection\Actors; | |
| 7 | 11 | |
| 12 | +/** | |
| 13 | + * Block class. | |
| 14 | + */ | |
| 8 | 15 | class Blocks { |
| 16 | + /** | |
| 17 | + * Initialize the class, registering WordPress hooks. | |
| 18 | + */ | |
| 9 | 19 | public static function init() { |
| 10 | - // this is already being called on the init hook, so just add it. | |
| 20 | + // This is already being called on the init hook, so just add it. | |
| 11 | 21 | self::register_blocks(); |
| 12 | - \add_action( 'wp_enqueue_scripts', array( self::class, 'add_data' ) ); | |
| 13 | - \add_action( 'enqueue_block_editor_assets', array( self::class, 'add_data' ) ); | |
| 22 | + | |
| 23 | + \add_action( 'load-post-new.php', array( self::class, 'handle_in_reply_to_get_param' ) ); | |
| 24 | + // Add editor plugin. | |
| 25 | + \add_action( 'enqueue_block_editor_assets', array( self::class, 'enqueue_editor_assets' ) ); | |
| 26 | + \add_action( 'rest_api_init', array( self::class, 'register_rest_fields' ) ); | |
| 27 | + | |
| 28 | + \add_filter( 'activitypub_import_mastodon_post_data', array( self::class, 'filter_import_mastodon_post_data' ), 10, 2 ); | |
| 29 | + | |
| 30 | + \add_action( 'activitypub_before_get_content', array( self::class, 'add_post_transformation_callbacks' ) ); | |
| 31 | + \add_filter( 'activitypub_the_content', array( self::class, 'remove_post_transformation_callbacks' ) ); | |
| 14 | 32 | } |
| 15 | 33 | |
| 16 | - public static function add_data() { | |
| 17 | - $context = is_admin() ? 'editor' : 'view'; | |
| 18 | - $followers_handle = 'activitypub-followers-' . $context . '-script'; | |
| 19 | - $follow_me_handle = 'activitypub-follow-me-' . $context . '-script'; | |
| 34 | + /** | |
| 35 | + * Enqueue the block editor assets. | |
| 36 | + */ | |
| 37 | + public static function enqueue_editor_assets() { | |
| 20 | 38 | $data = array( |
| 21 | - 'namespace' => ACTIVITYPUB_REST_NAMESPACE, | |
| 22 | - 'enabled' => array( | |
| 23 | - 'site' => ! is_user_type_disabled( 'blog' ), | |
| 39 | + 'namespace' => ACTIVITYPUB_REST_NAMESPACE, | |
| 40 | + 'defaultAvatarUrl' => ACTIVITYPUB_PLUGIN_URL . 'assets/img/mp.jpg', | |
| 41 | + 'enabled' => array( | |
| 42 | + 'blog' => ! is_user_type_disabled( 'blog' ), | |
| 24 | 43 | 'users' => ! is_user_type_disabled( 'user' ), |
| 25 | 44 | ), |
| 45 | + 'profileUrls' => array( | |
| 46 | + 'user' => \admin_url( 'profile.php#activitypub' ), | |
| 47 | + 'blog' => \admin_url( 'options-general.php?page=activitypub&tab=blog-profile' ), | |
| 48 | + ), | |
| 49 | + 'showAvatars' => (bool) \get_option( 'show_avatars' ), | |
| 26 | 50 | ); |
| 27 | - $js = sprintf( 'var _activityPubOptions = %s;', wp_json_encode( $data ) ); | |
| 28 | - \wp_add_inline_script( $followers_handle, $js, 'before' ); | |
| 29 | - \wp_add_inline_script( $follow_me_handle, $js, 'before' ); | |
| 51 | + wp_localize_script( 'wp-editor', '_activityPubOptions', $data ); | |
| 52 | + | |
| 53 | + // Check for our supported post types. | |
| 54 | + $current_screen = \get_current_screen(); | |
| 55 | + $ap_post_types = \get_post_types_by_support( 'activitypub' ); | |
| 56 | + if ( ! $current_screen || ! in_array( $current_screen->post_type, $ap_post_types, true ) ) { | |
| 57 | + return; | |
| 58 | + } | |
| 59 | + | |
| 60 | + $asset_data = include ACTIVITYPUB_PLUGIN_DIR . 'build/editor-plugin/plugin.asset.php'; | |
| 61 | + $plugin_url = plugins_url( 'build/editor-plugin/plugin.js', ACTIVITYPUB_PLUGIN_FILE ); | |
| 62 | + wp_enqueue_script( 'activitypub-block-editor', $plugin_url, $asset_data['dependencies'], $asset_data['version'], true ); | |
| 30 | 63 | } |
| 31 | 64 | |
| 65 | + /** | |
| 66 | + * Enqueue the reply handle script if the in_reply_to GET param is set. | |
| 67 | + */ | |
| 68 | + public static function handle_in_reply_to_get_param() { | |
| 69 | + // Only load the script if the in_reply_to GET param is set, action happens there, not here. | |
| 70 | + // phpcs:ignore WordPress.Security.NonceVerification.Recommended | |
| 71 | + if ( ! isset( $_GET['in_reply_to'] ) ) { | |
| 72 | + return; | |
| 73 | + } | |
| 74 | + | |
| 75 | + $asset_data = include ACTIVITYPUB_PLUGIN_DIR . 'build/reply-intent/plugin.asset.php'; | |
| 76 | + $plugin_url = plugins_url( 'build/reply-intent/plugin.js', ACTIVITYPUB_PLUGIN_FILE ); | |
| 77 | + wp_enqueue_script( 'activitypub-reply-intent', $plugin_url, $asset_data['dependencies'], $asset_data['version'], true ); | |
| 78 | + } | |
| 79 | + | |
| 80 | + /** | |
| 81 | + * Register the blocks. | |
| 82 | + */ | |
| 32 | 83 | public static function register_blocks() { |
| 84 | + \register_block_type_from_metadata( ACTIVITYPUB_PLUGIN_DIR . '/build/extra-fields' ); | |
| 85 | + \register_block_type_from_metadata( ACTIVITYPUB_PLUGIN_DIR . '/build/follow-me' ); | |
| 86 | + \register_block_type_from_metadata( ACTIVITYPUB_PLUGIN_DIR . '/build/followers' ); | |
| 87 | + // Register reactions block, conditionally removing facepile style if avatars are disabled. | |
| 88 | + $reactions_args = array(); | |
| 89 | + if ( ! \get_option( 'show_avatars', true ) ) { | |
| 90 | + $reactions_args['styles'] = array(); | |
| 91 | + } | |
| 92 | + \register_block_type_from_metadata( ACTIVITYPUB_PLUGIN_DIR . '/build/reactions', $reactions_args ); | |
| 93 | + | |
| 33 | 94 | \register_block_type_from_metadata( |
| 34 | - ACTIVITYPUB_PLUGIN_DIR . '/build/followers', | |
| 95 | + ACTIVITYPUB_PLUGIN_DIR . '/build/reply', | |
| 35 | 96 | array( |
| 36 | - 'render_callback' => array( self::class, 'render_follower_block' ), | |
| 97 | + 'render_callback' => array( self::class, 'render_reply_block' ), | |
| 37 | 98 | ) |
| 38 | 99 | ); |
| 39 | - \register_block_type_from_metadata( | |
| 40 | - ACTIVITYPUB_PLUGIN_DIR . '/build/follow-me', | |
| 100 | + } | |
| 101 | + | |
| 102 | + /** | |
| 103 | + * Register REST fields needed for blocks. | |
| 104 | + */ | |
| 105 | + public static function register_rest_fields() { | |
| 106 | + // Register the post_count field for Follow Me block. | |
| 107 | + register_rest_field( | |
| 108 | + 'user', | |
| 109 | + 'post_count', | |
| 41 | 110 | array( |
| 42 | - 'render_callback' => array( self::class, 'render_follow_me_block' ), | |
| 111 | + /** | |
| 112 | + * Get the number of published posts. | |
| 113 | + * | |
| 114 | + * @param array $response Prepared response array. | |
| 115 | + * @param string $field_name The field name. | |
| 116 | + * @param \WP_REST_Request $request The request object. | |
| 117 | + * @return int The number of published posts. | |
| 118 | + */ | |
| 119 | + 'get_callback' => static function ( $response, $field_name, $request ) { | |
| 120 | + return (int) count_user_posts( $request->get_param( 'id' ), 'post', true ); | |
| 121 | + }, | |
| 122 | + 'schema' => array( | |
| 123 | + 'description' => 'Number of published posts', | |
| 124 | + 'type' => 'integer', | |
| 125 | + 'context' => array( 'activitypub' ), | |
| 126 | + ), | |
| 43 | 127 | ) |
| 44 | 128 | ); |
| 45 | 129 | } |
| 46 | 130 | |
| 47 | - private static function get_user_id( $user_string ) { | |
| 131 | + /** | |
| 132 | + * Get the user ID from a user string. | |
| 133 | + * | |
| 134 | + * @param string $user_string The user string. Can be a user ID, 'blog', or 'inherit'. | |
| 135 | + * @return int|null The user ID, or null if the 'inherit' string is not supported in this context. | |
| 136 | + */ | |
| 137 | + public static function get_user_id( $user_string ) { | |
| 48 | 138 | if ( is_numeric( $user_string ) ) { |
| 49 | 139 | return absint( $user_string ); |
| 50 | 140 | } |
| 51 | - // any other non-numeric falls back to 0, including the `site` string used in the UI | |
| 52 | - return 0; | |
| 53 | - } | |
| 54 | 141 | |
| 55 | - /** | |
| 56 | - * Filter an array by a list of keys. | |
| 57 | - * @param array $array The array to filter. | |
| 58 | - * @param array $keys The keys to keep. | |
| 59 | - * @return array The filtered array. | |
| 60 | - */ | |
| 61 | - protected static function filter_array_by_keys( $array, $keys ) { | |
| 62 | - return array_intersect_key( $array, array_flip( $keys ) ); | |
| 142 | + // If the user string is 'blog', return the Blog User ID. | |
| 143 | + if ( 'blog' === $user_string ) { | |
| 144 | + return Actors::BLOG_USER_ID; | |
| 145 | + } | |
| 146 | + | |
| 147 | + // The only other value should be 'inherit', which means to use the query context to determine the User. | |
| 148 | + if ( 'inherit' !== $user_string ) { | |
| 149 | + return null; | |
| 150 | + } | |
| 151 | + | |
| 152 | + // For a homepage/front page, if the Blog User is active, use it. | |
| 153 | + if ( ( is_front_page() || is_home() ) && ! is_user_type_disabled( 'blog' ) ) { | |
| 154 | + return Actors::BLOG_USER_ID; | |
| 155 | + } | |
| 156 | + | |
| 157 | + // If we're in a loop, use the post author. | |
| 158 | + $author_id = get_the_author_meta( 'ID' ); | |
| 159 | + if ( $author_id ) { | |
| 160 | + return $author_id; | |
| 161 | + } | |
| 162 | + | |
| 163 | + // For other pages, the queried object will clue us in. | |
| 164 | + $queried_object = get_queried_object(); | |
| 165 | + if ( ! $queried_object ) { | |
| 166 | + return null; | |
| 167 | + } | |
| 168 | + | |
| 169 | + // If we're on a user archive page, use that user's ID. | |
| 170 | + if ( is_a( $queried_object, 'WP_User' ) ) { | |
| 171 | + return $queried_object->ID; | |
| 172 | + } | |
| 173 | + | |
| 174 | + // For a single post, use the post author's ID. | |
| 175 | + if ( is_a( $queried_object, 'WP_Post' ) ) { | |
| 176 | + return get_the_author_meta( 'ID' ); | |
| 177 | + } | |
| 178 | + | |
| 179 | + // We won't properly account for some conditions, like tag archives. | |
| 180 | + return null; | |
| 63 | 181 | } |
| 64 | 182 | |
| 65 | 183 | /** |
| 66 | - * Render the follow me block. | |
| 184 | + * Render the reply block. | |
| 185 | + * | |
| 67 | 186 | * @param array $attrs The block attributes. |
| 187 | + * | |
| 68 | 188 | * @return string The HTML to render. |
| 69 | 189 | */ |
| 70 | - public static function render_follow_me_block( $attrs ) { | |
| 71 | - $user_id = self::get_user_id( $attrs['selectedUser'] ); | |
| 72 | - $user = User_Collection::get_by_id( $user_id ); | |
| 73 | - if ( ! is_wp_error( $user ) ) { | |
| 74 | - $attrs['profileData'] = self::filter_array_by_keys( | |
| 75 | - $user->to_array(), | |
| 76 | - array( 'icon', 'name', 'resource' ) | |
| 77 | - ); | |
| 190 | + public static function render_reply_block( $attrs ) { | |
| 191 | + if ( is_activitypub_request() ) { | |
| 192 | + $attrs['embedPost'] = false; | |
| 78 | 193 | } |
| 79 | - $wrapper_attributes = get_block_wrapper_attributes( | |
| 194 | + | |
| 195 | + // Return early if no URL is provided. | |
| 196 | + if ( empty( $attrs['url'] ) ) { | |
| 197 | + return null; | |
| 198 | + } | |
| 199 | + | |
| 200 | + $show_embed = isset( $attrs['embedPost'] ) && $attrs['embedPost']; | |
| 201 | + | |
| 202 | + $wrapper_attrs = get_block_wrapper_attributes( | |
| 80 | 203 | array( |
| 81 | - 'aria-label' => __( 'Follow me on the Fediverse', 'activitypub' ), | |
| 82 | - 'class' => 'activitypub-follow-me-block-wrapper', | |
| 83 | - 'data-attrs' => wp_json_encode( $attrs ), | |
| 204 | + 'aria-label' => __( 'Reply', 'activitypub' ), | |
| 205 | + 'class' => 'activitypub-reply-block', | |
| 206 | + 'data-in-reply-to' => $attrs['url'], | |
| 84 | 207 | ) |
| 85 | 208 | ); |
| 86 | - // todo: render more than an empty div? | |
| 87 | - return '<div ' . $wrapper_attributes . '></div>'; | |
| 209 | + | |
| 210 | + $html = '<div ' . $wrapper_attrs . '>'; | |
| 211 | + | |
| 212 | + // Try to get and append the embed if requested. | |
| 213 | + $embed = null; | |
| 214 | + if ( $show_embed ) { | |
| 215 | + $embed = wp_oembed_get( $attrs['url'] ); | |
| 216 | + if ( $embed ) { | |
| 217 | + $html .= $embed; | |
| 218 | + \wp_enqueue_script( 'wp-embed' ); | |
| 219 | + } | |
| 220 | + } | |
| 221 | + | |
| 222 | + // Show the link if embed is not requested or if embed failed. | |
| 223 | + if ( ! $show_embed || ! $embed ) { | |
| 224 | + $html .= sprintf( | |
| 225 | + '<p><a title="%2$s" aria-label="%2$s" href="%1$s" class="u-in-reply-to" target="_blank">%3$s</a></p>', | |
| 226 | + esc_url( $attrs['url'] ), | |
| 227 | + esc_attr__( 'This post is a response to the referenced content.', 'activitypub' ), | |
| 228 | + // translators: %s is the URL of the post being replied to. | |
| 229 | + sprintf( __( '↬%s', 'activitypub' ), \str_replace( array( 'https://', 'http://' ), '', esc_url( $attrs['url'] ) ) ) | |
| 230 | + ); | |
| 231 | + } | |
| 232 | + | |
| 233 | + $html .= '</div>'; | |
| 234 | + | |
| 235 | + return $html; | |
| 88 | 236 | } |
| 89 | 237 | |
| 90 | - public static function render_follower_block( $attrs ) { | |
| 91 | - $followee_user_id = self::get_user_id( $attrs['selectedUser'] ); | |
| 92 | - $per_page = absint( $attrs['per_page'] ); | |
| 93 | - $follower_data = Followers::get_followers_with_count( $followee_user_id, $per_page ); | |
| 238 | + /** | |
| 239 | + * Renders a modal component that can be used by different blocks. | |
| 240 | + * | |
| 241 | + * @param array $args Arguments for the modal. | |
| 242 | + */ | |
| 243 | + public static function render_modal( $args = array() ) { | |
| 244 | + $defaults = array( | |
| 245 | + 'content' => '', | |
| 246 | + 'id' => '', | |
| 247 | + 'is_compact' => false, | |
| 248 | + 'title' => '', | |
| 249 | + ); | |
| 94 | 250 | |
| 95 | - $attrs['followerData']['total'] = $follower_data['total']; | |
| 96 | - $attrs['followerData']['followers'] = array_map( | |
| 97 | - function( $follower ) { | |
| 98 | - return self::filter_array_by_keys( | |
| 99 | - $follower->to_array(), | |
| 100 | - array( 'icon', 'name', 'preferredUsername', 'url' ) | |
| 101 | - ); | |
| 251 | + $args = \wp_parse_args( $args, $defaults ); | |
| 252 | + ?> | |
| 253 | + | |
| 254 | + <div | |
| 255 | + class="activitypub-modal__overlay<?php echo \esc_attr( $args['is_compact'] ? ' compact' : '' ); ?>" | |
| 256 | + data-wp-bind--hidden="!context.modal.isOpen" | |
| 257 | + data-wp-watch="callbacks.handleModalEffects" | |
| 258 | + role="dialog" | |
| 259 | + aria-modal="true" | |
| 260 | + hidden | |
| 261 | + > | |
| 262 | + <div class="activitypub-modal__frame"> | |
| 263 | + <?php if ( ! $args['is_compact'] || ! empty( $args['title'] ) ) : ?> | |
| 264 | + <div class="activitypub-modal__header"> | |
| 265 | + <h2 | |
| 266 | + class="activitypub-modal__title" | |
| 267 | + <?php if ( ! empty( $args['id'] ) ) : ?> | |
| 268 | + id="<?php echo \esc_attr( $args['id'] . '-title' ); ?>" | |
| 269 | + <?php endif; ?> | |
| 270 | + ><?php echo \esc_html( $args['title'] ); ?></h2> | |
| 271 | + <button | |
| 272 | + type="button" | |
| 273 | + class="activitypub-modal__close wp-element-button wp-block-button__link" | |
| 274 | + data-wp-on--click="actions.closeModal" | |
| 275 | + aria-label="<?php echo \esc_attr__( 'Close dialog', 'activitypub' ); ?>" | |
| 276 | + > | |
| 277 | + <svg fill="currentColor" width="24" height="24" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false"> | |
| 278 | + <path d="M13 11.8l6.1-6.3-1-1-6.1 6.2-6.1-6.2-1 1 6.1 6.3-6.5 6.7 1 1 6.5-6.6 6.5 6.6 1-1z"></path> | |
| 279 | + </svg> | |
| 280 | + </button> | |
| 281 | + </div> | |
| 282 | + <?php endif; ?> | |
| 283 | + <div class="activitypub-modal__content"> | |
| 284 | + <?php echo $args['content']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?> | |
| 285 | + </div> | |
| 286 | + </div> | |
| 287 | + </div> | |
| 288 | + <?php | |
| 289 | + } | |
| 290 | + | |
| 291 | + /** | |
| 292 | + * Converts content to blocks before saving to the database. | |
| 293 | + * | |
| 294 | + * @param array $data The post data to be inserted. | |
| 295 | + * @param array $post The Mastodon Create activity. | |
| 296 | + * | |
| 297 | + * @return array | |
| 298 | + */ | |
| 299 | + public static function filter_import_mastodon_post_data( $data, $post ) { | |
| 300 | + // Convert paragraphs to blocks. | |
| 301 | + \preg_match_all( '#<p>.*?</p>#is', $data['post_content'], $matches ); | |
| 302 | + $blocks = \array_map( | |
| 303 | + static function ( $paragraph ) { | |
| 304 | + return '<!-- wp:paragraph -->' . PHP_EOL . $paragraph . PHP_EOL . '<!-- /wp:paragraph -->' . PHP_EOL; | |
| 102 | 305 | }, |
| 103 | - $follower_data['followers'] | |
| 306 | + $matches[0] ?? array() | |
| 104 | 307 | ); |
| 105 | - $wrapper_attributes = get_block_wrapper_attributes( | |
| 106 | - array( | |
| 107 | - 'aria-label' => __( 'Fediverse Followers', 'activitypub' ), | |
| 108 | - 'class' => 'activitypub-follower-block', | |
| 109 | - 'data-attrs' => wp_json_encode( $attrs ), | |
| 110 | - ) | |
| 111 | - ); | |
| 112 | 308 | |
| 113 | - $html = '<div ' . $wrapper_attributes . '>'; | |
| 114 | - if ( $attrs['title'] ) { | |
| 115 | - $html .= '<h3>' . esc_html( $attrs['title'] ) . '</h3>'; | |
| 309 | + $data['post_content'] = \rtrim( \implode( PHP_EOL, $blocks ), PHP_EOL ); | |
| 310 | + | |
| 311 | + // Add reply block if it's a reply. | |
| 312 | + if ( ! empty( $post['object']['inReplyTo'] ) ) { | |
| 313 | + $reply_block = \sprintf( '<!-- wp:activitypub/reply {"url":"%1$s","embedPost":true} /-->' . PHP_EOL, \esc_url( $post['object']['inReplyTo'] ) ); | |
| 314 | + $data['post_content'] = $reply_block . $data['post_content']; | |
| 116 | 315 | } |
| 117 | - $html .= '<ul>'; | |
| 118 | - foreach ( $follower_data['followers'] as $follower ) { | |
| 119 | - $html .= '<li>' . self::render_follower( $follower ) . '</li>'; | |
| 316 | + | |
| 317 | + return $data; | |
| 318 | + } | |
| 319 | + | |
| 320 | + /** | |
| 321 | + * Add Interactivity directions to the specified element. | |
| 322 | + * | |
| 323 | + * @param string $content The block content. | |
| 324 | + * @param string[] $selector The selector for the element to add directions to. | |
| 325 | + * @param string[] $attributes The attributes to add to the element. | |
| 326 | + * | |
| 327 | + * @return string The updated content. | |
| 328 | + */ | |
| 329 | + public static function add_directions( $content, $selector, $attributes ) { | |
| 330 | + $tags = new \WP_HTML_Tag_Processor( $content ); | |
| 331 | + | |
| 332 | + while ( $tags->next_tag( $selector ) ) { | |
| 333 | + foreach ( $attributes as $key => $value ) { | |
| 334 | + if ( 'class' === $key ) { | |
| 335 | + $tags->add_class( $value ); | |
| 336 | + continue; | |
| 337 | + } | |
| 338 | + | |
| 339 | + $tags->set_attribute( $key, $value ); | |
| 340 | + } | |
| 120 | 341 | } |
| 121 | - // We are only pagination on the JS side. Could be revisited but we gotta ship! | |
| 122 | - $html .= '</ul></div>'; | |
| 123 | - return $html; | |
| 342 | + | |
| 343 | + return $tags->get_updated_html(); | |
| 124 | 344 | } |
| 125 | 345 | |
| 126 | - public static function render_follower( $follower ) { | |
| 127 | - $external_svg = '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" class="components-external-link__icon css-rvs7bx esh4a730" aria-hidden="true" focusable="false"><path d="M18.2 17c0 .7-.6 1.2-1.2 1.2H7c-.7 0-1.2-.6-1.2-1.2V7c0-.7.6-1.2 1.2-1.2h3.2V4.2H7C5.5 4.2 4.2 5.5 4.2 7v10c0 1.5 1.2 2.8 2.8 2.8h10c1.5 0 2.8-1.2 2.8-2.8v-3.6h-1.5V17zM14.9 3v1.5h3.7l-6.4 6.4 1.1 1.1 6.4-6.4v3.7h1.5V3h-6.3z"></path></svg>'; | |
| 128 | - $template = | |
| 129 | - '<a href="%s" title="%s" class="components-external-link activitypub-link" target="_blank" rel="external noreferrer noopener"> | |
| 130 | - <img width="40" height="40" src="%s" class="avatar activitypub-avatar" /> | |
| 131 | - <span class="activitypub-actor"> | |
| 132 | - <strong class="activitypub-name">%s</strong> | |
| 133 | - <span class="sep">/</span> | |
| 134 | - <span class="activitypub-handle">@%s</span> | |
| 135 | - </span> | |
| 136 | - %s | |
| 137 | - </a>'; | |
| 346 | + /** | |
| 347 | + * Add post transformation callbacks. | |
| 348 | + * | |
| 349 | + * @param object $post The post object. | |
| 350 | + */ | |
| 351 | + public static function add_post_transformation_callbacks( $post ) { | |
| 352 | + \add_filter( 'render_block_core/embed', array( self::class, 'revert_embed_links' ), 10, 2 ); | |
| 138 | 353 | |
| 139 | - $data = $follower->to_array(); | |
| 354 | + // Only transform reply link if it's the first block in the post. | |
| 355 | + $blocks = \parse_blocks( $post->post_content ); | |
| 356 | + if ( ! empty( $blocks ) && 'activitypub/reply' === $blocks[0]['blockName'] ) { | |
| 357 | + \add_filter( 'render_block_activitypub/reply', array( self::class, 'generate_reply_link' ), 10, 2 ); | |
| 358 | + } | |
| 359 | + } | |
| 140 | 360 | |
| 141 | - return sprintf( | |
| 142 | - $template, | |
| 143 | - esc_url( $data['url'] ), | |
| 144 | - esc_attr( $data['name'] ), | |
| 145 | - esc_attr( $data['icon']['url'] ), | |
| 146 | - esc_html( $data['name'] ), | |
| 147 | - esc_html( $data['preferredUsername'] ), | |
| 148 | - $external_svg | |
| 361 | + /** | |
| 362 | + * Remove post transformation callbacks. | |
| 363 | + * | |
| 364 | + * @param string $content The post content. | |
| 365 | + * | |
| 366 | + * @return string The updated content. | |
| 367 | + */ | |
| 368 | + public static function remove_post_transformation_callbacks( $content ) { | |
| 369 | + \remove_filter( 'render_block_core/embed', array( self::class, 'revert_embed_links' ) ); | |
| 370 | + \remove_filter( 'render_block_activitypub/reply', array( self::class, 'generate_reply_link' ) ); | |
| 371 | + | |
| 372 | + return $content; | |
| 373 | + } | |
| 374 | + | |
| 375 | + /** | |
| 376 | + * Generate HTML @ link for reply block. | |
| 377 | + * | |
| 378 | + * @param string $block_content The block content. | |
| 379 | + * @param array $block The block data. | |
| 380 | + * | |
| 381 | + * @return string The HTML @ link. | |
| 382 | + */ | |
| 383 | + public static function generate_reply_link( $block_content, $block ) { | |
| 384 | + // Unhook ourselves after first execution to ensure only the first reply block gets transformed. | |
| 385 | + \remove_filter( 'render_block_activitypub/reply', array( self::class, 'generate_reply_link' ) ); | |
| 386 | + | |
| 387 | + // Return empty string if no URL is provided. | |
| 388 | + if ( empty( $block['attrs']['url'] ) ) { | |
| 389 | + return ''; | |
| 390 | + } | |
| 391 | + | |
| 392 | + $url = $block['attrs']['url']; | |
| 393 | + | |
| 394 | + // Try to get ActivityPub representation. Is likely already cached. | |
| 395 | + $object = Http::get_remote_object( $url ); | |
| 396 | + if ( \is_wp_error( $object ) ) { | |
| 397 | + return ''; | |
| 398 | + } | |
| 399 | + | |
| 400 | + $author_url = $object['attributedTo'] ?? ''; | |
| 401 | + if ( ! $author_url ) { | |
| 402 | + return ''; | |
| 403 | + } | |
| 404 | + | |
| 405 | + // Fetch author information. | |
| 406 | + $author = Http::get_remote_object( $author_url ); | |
| 407 | + if ( \is_wp_error( $author ) ) { | |
| 408 | + return ''; | |
| 409 | + } | |
| 410 | + | |
| 411 | + // Get webfinger identifier. | |
| 412 | + $webfinger = ''; | |
| 413 | + if ( ! empty( $author['webfinger'] ) ) { | |
| 414 | + $webfinger = \str_replace( 'acct:', '', $author['webfinger'] ); | |
| 415 | + } elseif ( ! empty( $author['preferredUsername'] ) && ! empty( $author['url'] ) ) { | |
| 416 | + // Construct webfinger-style identifier from username and domain. | |
| 417 | + $domain = \wp_parse_url( $author['url'], PHP_URL_HOST ); | |
| 418 | + $webfinger = '@' . $author['preferredUsername'] . '@' . $domain; | |
| 419 | + } | |
| 420 | + | |
| 421 | + if ( ! $webfinger ) { | |
| 422 | + return ''; | |
| 423 | + } | |
| 424 | + | |
| 425 | + // Generate HTML @ link. | |
| 426 | + return \sprintf( | |
| 427 | + '<p class="ap-reply-mention"><a rel="mention ugc" href="%1$s" title="%2$s">%3$s</a></p>', | |
| 428 | + \esc_url( $url ), | |
| 429 | + \esc_attr( $webfinger ), | |
| 430 | + \esc_html( '@' . strtok( $webfinger, '@' ) ) | |
| 149 | 431 | ); |
| 432 | + } | |
| 433 | + | |
| 434 | + /** | |
| 435 | + * Transform Embed blocks to block level link. | |
| 436 | + * | |
| 437 | + * Remote servers will simply drop iframe elements, rendering incomplete content. | |
| 438 | + * | |
| 439 | + * @see https://www.w3.org/TR/activitypub/#security-sanitizing-content | |
| 440 | + * @see https://www.w3.org/wiki/ActivityPub/Primer/HTML | |
| 441 | + * | |
| 442 | + * @param string $block_content The block content (html). | |
| 443 | + * @param object $block The block object. | |
| 444 | + * | |
| 445 | + * @return string A block level link | |
| 446 | + */ | |
| 447 | + public static function revert_embed_links( $block_content, $block ) { | |
| 448 | + if ( ! isset( $block['attrs']['url'] ) ) { | |
| 449 | + return $block_content; | |
| 450 | + } | |
| 451 | + return '<p><a href="' . esc_url( $block['attrs']['url'] ) . '">' . $block['attrs']['url'] . '</a></p>'; | |
| 150 | 452 | } |
| 151 | 453 | } |
