array( 'href' => array(), 'title' => array(), 'class' => array(), 'rel' => array(), ), 'br' => array(), 'p' => array( 'class' => array(), ), 'span' => array( 'class' => array(), ), 'div' => array( 'class' => array(), ), 'ul' => array(), 'ol' => array( 'reversed' => array(), 'start' => array(), ), 'li' => array( 'value' => array(), ), 'strong' => array( 'class' => array(), ), 'b' => array( 'class' => array(), ), 'i' => array( 'class' => array(), ), 'em' => array( 'class' => array(), ), 'blockquote' => array(), 'cite' => array(), 'code' => array( 'class' => array(), ), 'pre' => array( 'class' => array(), ), ); /** * List of audience * * Also used for visibility * * @var array */ private $to = array( 'https://www.w3.org/ns/activitystreams#Public' ); /** * List of audience * * Also used for visibility * * @var array */ private $cc = array(); /** * Constructor * * @param WP_Post $post * @param int $post_author */ public function __construct( $post, $post_author = null ) { $this->post = \get_post( $post ); if ( $post_author ) { $this->post_author = $post_author; } else { $this->post_author = $this->post->post_author; } $path = sprintf( 'users/%d/followers', intval( $this->get_post_author() ) ); $this->add_to( get_rest_url_by_path( $path ) ); } /** * Magic function to implement getter and setter * * @param string $method * @param string $params * * @return void */ public function __call( $method, $params ) { $var = \strtolower( \substr( $method, 4 ) ); if ( \strncasecmp( $method, 'get', 3 ) === 0 ) { if ( empty( $this->$var ) && ! empty( $this->post->$var ) ) { return $this->post->$var; } return $this->$var; } if ( \strncasecmp( $method, 'set', 3 ) === 0 ) { $this->$var = $params[0]; } if ( \strncasecmp( $method, 'add', 3 ) === 0 ) { if ( ! is_array( $this->$var ) ) { $this->$var = $params[0]; } if ( is_array( $params[0] ) ) { $this->$var = array_merge( $this->$var, $params[0] ); } else { array_push( $this->$var, $params[0] ); } $this->$var = array_unique( $this->$var ); } } /** * Returns the User ID. * * @return int the User ID. */ public function get_user_id() { return apply_filters( 'activitypub_post_user_id', $this->get_post_author(), $this->post ); } /** * Converts this Object into an Array. * * @return array the array representation of a Post. */ public function to_array() { $post = $this->post; $array = array( 'id' => $this->get_id(), 'url' => $this->get_url(), 'type' => $this->get_object_type(), 'published' => \gmdate( 'Y-m-d\TH:i:s\Z', \strtotime( $post->post_date_gmt ) ), 'attributedTo' => $this->get_actor(), 'summary' => $this->get_summary(), 'inReplyTo' => null, 'content' => $this->get_content(), 'contentMap' => array( \strstr( \get_locale(), '_', true ) => $this->get_content(), ), 'to' => $this->get_to(), 'cc' => $this->get_cc(), 'attachment' => $this->get_attachments(), 'tag' => $this->get_tags(), ); return \apply_filters( 'activitypub_post', $array, $this->post ); } /** * Returns the Actor of this Object. * * @return string The URL of the Actor. */ public function get_actor() { $user = Users::get_by_id( $this->get_user_id() ); return $user->get_url(); } /** * Converts this Object into a JSON String * * @return string */ public function to_json() { return \wp_json_encode( $this->to_array(), \JSON_HEX_TAG | \JSON_HEX_AMP | \JSON_HEX_QUOT ); } /** * Returns the URL of an Activity Object * * @return string */ public function get_url() { if ( $this->url ) { return $this->url; } $post = $this->post; if ( 'trash' === get_post_status( $post ) ) { $permalink = \get_post_meta( $post->ID, 'activitypub_canonical_url', true ); } else { $permalink = \get_permalink( $post ); } $this->url = $permalink; return $permalink; } /** * Returns the ID of an Activity Object * * @return string */ public function get_id() { if ( $this->id ) { return $this->id; } $this->id = $this->get_url(); return $this->id; } /** * Returns a list of Image Attachments * * @return array */ public function get_attachments() { if ( $this->attachments ) { return $this->attachments; } $max_images = intval( \apply_filters( 'activitypub_max_image_attachments', \get_option( 'activitypub_max_image_attachments', ACTIVITYPUB_MAX_IMAGE_ATTACHMENTS ) ) ); $images = array(); // max images can't be negative or zero if ( $max_images <= 0 ) { return $images; } $id = $this->post->ID; $image_ids = array(); // list post thumbnail first if this post has one if ( \function_exists( 'has_post_thumbnail' ) && \has_post_thumbnail( $id ) ) { $image_ids[] = \get_post_thumbnail_id( $id ); $max_images--; } if ( $max_images > 0 ) { // then list any image attachments $query = new \WP_Query( array( 'post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => 'ASC', 'orderby' => 'menu_order ID', 'posts_per_page' => $max_images, ) ); foreach ( $query->get_posts() as $attachment ) { if ( ! \in_array( $attachment->ID, $image_ids, true ) ) { $image_ids[] = $attachment->ID; } } } $image_ids = \array_unique( $image_ids ); // get URLs for each image foreach ( $image_ids as $id ) { $image_size = 'full'; /** * Filter the image URL returned for each post. * * @param array|false $thumbnail The image URL, or false if no image is available. * @param int $id The attachment ID. * @param string $image_size The image size to retrieve. Set to 'full' by default. */ $thumbnail = apply_filters( 'activitypub_get_image', $this->get_image( $id, $image_size ), $id, $image_size ); if ( $thumbnail ) { $mimetype = \get_post_mime_type( $id ); $alt = \get_post_meta( $id, '_wp_attachment_image_alt', true ); $image = array( 'type' => 'Image', 'url' => $thumbnail[0], 'mediaType' => $mimetype, ); if ( $alt ) { $image['name'] = $alt; } $images[] = $image; } } $this->attachments = $images; return $images; } /** * Return details about an image attachment. * * @param int $id The attachment ID. * @param string $image_size The image size to retrieve. Set to 'full' by default. * * @return array|false Array of image data, or boolean false if no image is available. */ public function get_image( $id, $image_size = 'full' ) { /** * Hook into the image retrieval process. Before image retrieval. * * @param int $id The attachment ID. * @param string $image_size The image size to retrieve. Set to 'full' by default. */ do_action( 'activitypub_get_image_pre', $id, $image_size ); $thumbnail = \wp_get_attachment_image_src( $id, $image_size ); /** * Hook into the image retrieval process. After image retrieval. * * @param int $id The attachment ID. * @param string $image_size The image size to retrieve. Set to 'full' by default. */ do_action( 'activitypub_get_image_pre', $id, $image_size ); return $thumbnail; } /** * Returns a list of Tags, used in the Post * * @return array */ public function get_tags() { if ( $this->tags ) { return $this->tags; } $tags = array(); $post_tags = \get_the_tags( $this->post->ID ); if ( $post_tags ) { foreach ( $post_tags as $post_tag ) { $tag = array( 'type' => 'Hashtag', 'href' => \get_tag_link( $post_tag->term_id ), 'name' => '#' . $post_tag->slug, ); $tags[] = $tag; } } $mentions = apply_filters( 'activitypub_extract_mentions', array(), $this->post->post_content, $this ); if ( $mentions ) { foreach ( $mentions as $mention => $url ) { $tag = array( 'type' => 'Mention', 'href' => $url, 'name' => $mention, ); $tags[] = $tag; } } $this->tags = $tags; return $tags; } /** * Returns the as2 object-type for a given post * * @return string the object-type */ public function get_object_type() { if ( $this->object_type ) { return $this->object_type; } if ( 'wordpress-post-format' !== \get_option( 'activitypub_object_type', 'note' ) ) { return \ucfirst( \get_option( 'activitypub_object_type', 'note' ) ); } $post_type = \get_post_type( $this->post ); switch ( $post_type ) { case 'post': $post_format = \get_post_format( $this->post ); switch ( $post_format ) { case 'aside': case 'status': case 'quote': case 'note': $object_type = 'Note'; break; case 'gallery': case 'image': $object_type = 'Image'; break; case 'video': $object_type = 'Video'; break; case 'audio': $object_type = 'Audio'; break; default: $object_type = 'Article'; break; } break; case 'page': $object_type = 'Page'; break; case 'attachment': $mime_type = \get_post_mime_type(); $media_type = \preg_replace( '/(\/[a-zA-Z]+)/i', '', $mime_type ); switch ( $media_type ) { case 'audio': $object_type = 'Audio'; break; case 'video': $object_type = 'Video'; break; case 'image': $object_type = 'Image'; break; } break; default: $object_type = 'Article'; break; } $this->object_type = $object_type; return $object_type; } /** * Returns the content for the ActivityPub Item. * * @return string the content */ public function get_content() { global $post; if ( $this->content ) { return $this->content; } // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited $post = $this->post; $content = $this->get_post_content_template(); // Fill in the shortcodes. setup_postdata( $post ); $content = do_shortcode( $content ); wp_reset_postdata(); $content = \wp_kses( $content, $this->allowed_tags ); $content = \wpautop( $content ); $content = \preg_replace( '/[\n\r\t]/', '', $content ); $content = \trim( $content ); $content = \apply_filters( 'activitypub_the_content', $content, $post ); $content = \html_entity_decode( $content, \ENT_QUOTES, 'UTF-8' ); $this->content = $content; return $content; } /** * Gets the template to use to generate the content of the activitypub item. * * @return string the template */ public function get_post_content_template() { if ( 'excerpt' === \get_option( 'activitypub_post_content_type', 'content' ) ) { return "[ap_excerpt]\n\n[ap_permalink type=\"html\"]"; } if ( 'title' === \get_option( 'activitypub_post_content_type', 'content' ) ) { return "[ap_title]\n\n[ap_permalink type=\"html\"]"; } if ( 'content' === \get_option( 'activitypub_post_content_type', 'content' ) ) { return "[ap_content]\n\n[ap_hashtags]\n\n[ap_permalink type=\"html\"]"; } return \get_option( 'activitypub_custom_post_content', ACTIVITYPUB_CUSTOM_POST_CONTENT ); } }