modified file smtp-mailer

wp-content/upgrade-temp-backup/plugins/activitypub/includes/model/class-application-user.php

@@ -0,0 +1,72 @@
+<?php
+namespace Activitypub\Model;
+
+use WP_Query;
+use Activitypub\Signature;
+use Activitypub\Collection\Users;
+
+use function Activitypub\get_rest_url_by_path;
+
+class Application_User extends Blog_User {
+	/**
+	 * The User-ID
+	 *
+	 * @var int
+	 */
+	protected $_id = Users::APPLICATION_USER_ID; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore
+
+	/**
+	 * The User-Type
+	 *
+	 * @var string
+	 */
+	protected $type = 'Application';
+
+	/**
+	 * If the User is discoverable.
+	 *
+	 * @var boolean
+	 */
+	protected $discoverable = false;
+
+	/**
+	 * Get the User-Url.
+	 *
+	 * @return string The User-Url.
+	 */
+	public function get_url() {
+		return get_rest_url_by_path( 'application' );
+	}
+
+	public function get_name() {
+		return 'application';
+	}
+
+	public function get_preferred_username() {
+		return $this::get_name();
+	}
+
+	public function get_followers() {
+		return null;
+	}
+
+	public function get_following() {
+		return null;
+	}
+
+	public function get_attachment() {
+		return null;
+	}
+
+	public function get_featured() {
+		return null;
+	}
+
+	public function get_moderators() {
+		return null;
+	}
+
+	public function get_indexable() {
+		return false;
+	}
+}

wp-content/upgrade-temp-backup/plugins/activitypub/includes/model/class-blog-user.php

@@ -0,0 +1,243 @@
+<?php
+namespace Activitypub\Model;
+
+use WP_Query;
+use Activitypub\Signature;
+use Activitypub\Collection\Users;
+
+use function Activitypub\is_single_user;
+use function Activitypub\is_user_disabled;
+use function Activitypub\get_rest_url_by_path;
+
+class Blog_User extends User {
+	/**
+	 * The User-ID
+	 *
+	 * @var int
+	 */
+	protected $_id = Users::BLOG_USER_ID; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore
+
+	/**
+	 * The User-Type
+	 *
+	 * @var string
+	 */
+	protected $type = null;
+
+	/**
+	 * Is Account discoverable?
+	 *
+	 * @var boolean
+	 */
+	protected $discoverable = true;
+
+	public static function from_wp_user( $user_id ) {
+		if ( is_user_disabled( $user_id ) ) {
+			return new WP_Error(
+				'activitypub_user_not_found',
+				\__( 'User not found', 'activitypub' ),
+				array( 'status' => 404 )
+			);
+		}
+
+		$object = new static();
+		$object->_id = $user_id;
+
+		return $object;
+	}
+
+	/**
+	 * Get the type of the object.
+	 *
+	 * If the Blog is in "single user" mode, return "Person" insted of "Group".
+	 *
+	 * @return string The type of the object.
+	 */
+	public function get_type() {
+		if ( is_single_user() ) {
+			return 'Person';
+		} else {
+			return 'Group';
+		}
+	}
+
+	/**
+	 * Get the User-Name.
+	 *
+	 * @return string The User-Name.
+	 */
+	public function get_name() {
+		return \wp_strip_all_tags(
+			\html_entity_decode(
+				\get_bloginfo( 'name' ),
+				\ENT_QUOTES,
+				'UTF-8'
+			)
+		);
+	}
+
+	/**
+	 * Get the User-Description.
+	 *
+	 * @return string The User-Description.
+	 */
+	public function get_summary() {
+		return \wpautop(
+			\wp_kses(
+				\get_bloginfo( 'description' ),
+				'default'
+			)
+		);
+	}
+
+	/**
+	 * Get the User-Url.
+	 *
+	 * @return string The User-Url.
+	 */
+	public function get_url() {
+		return \esc_url( \trailingslashit( get_home_url() ) . '@' . $this->get_preferred_username() );
+	}
+
+	/**
+	 * Returns the User-URL with @-Prefix for the username.
+	 *
+	 * @return string The User-URL with @-Prefix for the username.
+	 */
+	public function get_at_url() {
+		return \esc_url( \trailingslashit( get_home_url() ) . '@' . $this->get_preferred_username() );
+	}
+
+	/**
+	 * Generate a default Username.
+	 *
+	 * @return string The auto-generated Username.
+	 */
+	public static function get_default_username() {
+		// check if domain host has a subdomain
+		$host = \wp_parse_url( \get_home_url(), \PHP_URL_HOST );
+		$host = \preg_replace( '/^www\./i', '', $host );
+
+		/**
+		 * Filter the default blog username.
+		 *
+		 * @param string $host The default username.
+		 */
+		return apply_filters( 'activitypub_default_blog_username', $host );
+	}
+
+	/**
+	 * Get the preferred User-Name.
+	 *
+	 * @return string The User-Name.
+	 */
+	public function get_preferred_username() {
+		$username = \get_option( 'activitypub_blog_user_identifier' );
+
+		if ( $username ) {
+			return $username;
+		}
+
+		return self::get_default_username();
+	}
+
+	/**
+	 * Get the User-Icon.
+	 *
+	 * @return array The User-Icon.
+	 */
+	public function get_icon() {
+		// try site icon first
+		$icon_id = get_option( 'site_icon' );
+
+		// try custom logo second
+		if ( ! $icon_id ) {
+			$icon_id = get_theme_mod( 'custom_logo' );
+		}
+
+		$icon_url = false;
+
+		if ( $icon_id ) {
+			$icon = wp_get_attachment_image_src( $icon_id, 'full' );
+			if ( $icon ) {
+				$icon_url = $icon[0];
+			}
+		}
+
+		if ( ! $icon_url ) {
+			// fallback to default icon
+			$icon_url = plugins_url( '/assets/img/wp-logo.png', ACTIVITYPUB_PLUGIN_FILE );
+		}
+
+		return array(
+			'type' => 'Image',
+			'url'  => esc_url( $icon_url ),
+		);
+	}
+
+	/**
+	 * Get the User-Header-Image.
+	 *
+	 * @return array|null The User-Header-Image.
+	 */
+	public function get_header_image() {
+		if ( \has_header_image() ) {
+			return array(
+				'type' => 'Image',
+				'url'  => esc_url( \get_header_image() ),
+			);
+		}
+
+		return null;
+	}
+
+	public function get_published() {
+		$first_post = new WP_Query(
+			array(
+				'orderby' => 'date',
+				'order'   => 'ASC',
+				'number'  => 1,
+			)
+		);
+
+		if ( ! empty( $first_post->posts[0] ) ) {
+			$time = \strtotime( $first_post->posts[0]->post_date_gmt );
+		} else {
+			$time = \time();
+		}
+
+		return \gmdate( 'Y-m-d\TH:i:s\Z', $time );
+	}
+
+	public function get_attachment() {
+		return array();
+	}
+
+	public function get_canonical_url() {
+		return \home_url();
+	}
+
+	public function get_moderators() {
+		if ( is_single_user() || 'Group' !== $this->get_type() ) {
+			return null;
+		}
+
+		return get_rest_url_by_path( 'collections/moderators' );
+	}
+
+	public function get_attributed_to() {
+		if ( is_single_user() || 'Group' !== $this->get_type() ) {
+			return null;
+		}
+
+		return get_rest_url_by_path( 'collections/moderators' );
+	}
+
+	public function get_posting_restricted_to_mods() {
+		if ( 'Group' === $this->get_type() ) {
+			return true;
+		}
+
+		return null;
+	}
+}

wp-content/upgrade-temp-backup/plugins/activitypub/includes/model/class-follower.php

@@ -0,0 +1,366 @@
+<?php
+namespace Activitypub\Model;
+
+use WP_Error;
+use WP_Query;
+use Activitypub\Activity\Actor;
+use Activitypub\Collection\Followers;
+
+/**
+ * ActivityPub Follower Class
+ *
+ * This Object represents a single Follower.
+ * There is no direct reference to a WordPress User here.
+ *
+ * @author Matt Wiebe
+ * @author Matthias Pfefferle
+ *
+ * @see https://www.w3.org/TR/activitypub/#follow-activity-inbox
+ */
+class Follower extends Actor {
+	/**
+	 * The complete Remote-Profile of the Follower
+	 *
+	 * @var array
+	 */
+	protected $_id; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore
+
+	/**
+	 * Get the errors.
+	 *
+	 * @return mixed
+	 */
+	public function get_errors() {
+		return get_post_meta( $this->_id, 'activitypub_errors' );
+	}
+
+	/**
+	 * Get the Summary.
+	 *
+	 * @return int The Summary.
+	 */
+	public function get_summary() {
+		if ( isset( $this->summary ) ) {
+			return $this->summary;
+		}
+
+		return '';
+	}
+
+	/**
+	 * Getter for URL attribute.
+	 *
+	 * Falls back to ID, if no URL is set. This is relevant for
+	 * Plattforms like Lemmy, where the ID is the URL.
+	 *
+	 * @return string The URL.
+	 */
+	public function get_url() {
+		if ( $this->url ) {
+			return $this->url;
+		}
+
+		return $this->id;
+	}
+
+	/**
+	 * Reset (delete) all errors.
+	 *
+	 * @return void
+	 */
+	public function reset_errors() {
+		delete_post_meta( $this->_id, 'activitypub_errors' );
+	}
+
+	/**
+	 * Count the errors.
+	 *
+	 * @return int The number of errors.
+	 */
+	public function count_errors() {
+		$errors = $this->get_errors();
+
+		if ( is_array( $errors ) && ! empty( $errors ) ) {
+			return count( $errors );
+		}
+
+		return 0;
+	}
+
+	/**
+	 * Return the latest error message.
+	 *
+	 * @return string The error message.
+	 */
+	public function get_latest_error_message() {
+		$errors = $this->get_errors();
+
+		if ( is_array( $errors ) && ! empty( $errors ) ) {
+			return reset( $errors );
+		}
+
+		return '';
+	}
+
+	/**
+	 * Update the current Follower-Object.
+	 *
+	 * @return void
+	 */
+	public function update() {
+		$this->save();
+	}
+
+	/**
+	 * Validate the current Follower-Object.
+	 *
+	 * @return boolean True if the verification was successful.
+	 */
+	public function is_valid() {
+		// the minimum required attributes
+		$required_attributes = array(
+			'id',
+			'preferredUsername',
+			'inbox',
+			'publicKey',
+			'publicKeyPem',
+		);
+
+		foreach ( $required_attributes as $attribute ) {
+			if ( ! $this->get( $attribute ) ) {
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+	/**
+	 * Save the current Follower-Object.
+	 *
+	 * @return int|WP_Error The Post-ID or an WP_Error.
+	 */
+	public function save() {
+		if ( ! $this->is_valid() ) {
+			return new WP_Error( 'activitypub_invalid_follower', __( 'Invalid Follower', 'activitypub' ), array( 'status' => 400 ) );
+		}
+
+		if ( ! $this->get__id() ) {
+			global $wpdb;
+
+			// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching
+			$post_id = $wpdb->get_var(
+				$wpdb->prepare(
+					"SELECT ID FROM $wpdb->posts WHERE guid=%s",
+					esc_sql( $this->get_id() )
+				)
+			);
+
+			if ( $post_id ) {
+				$post = get_post( $post_id );
+				$this->set__id( $post->ID );
+			}
+		}
+
+		$args = array(
+			'ID'           => $this->get__id(),
+			'guid'         => esc_url_raw( $this->get_id() ),
+			'post_title'   => wp_strip_all_tags( sanitize_text_field( $this->get_name() ) ),
+			'post_author'  => 0,
+			'post_type'    => Followers::POST_TYPE,
+			'post_name'    => esc_url_raw( $this->get_id() ),
+			'post_excerpt' => sanitize_text_field( wp_kses( $this->get_summary(), 'user_description' ) ),
+			'post_status'  => 'publish',
+			'meta_input'   => $this->get_post_meta_input(),
+		);
+
+		$post_id = wp_insert_post( $args );
+		$this->_id = $post_id;
+
+		return $post_id;
+	}
+
+	/**
+	 * Upsert the current Follower-Object.
+	 *
+	 * @return int|WP_Error The Post-ID or an WP_Error.
+	 */
+	public function upsert() {
+		return $this->save();
+	}
+
+	/**
+	 * Delete the current Follower-Object.
+	 *
+	 * Beware that this os deleting a Follower for ALL users!!!
+	 *
+	 * To delete only the User connection (unfollow)
+	 * @see \Activitypub\Rest\Followers::remove_follower()
+	 *
+	 * @return void
+	 */
+	public function delete() {
+		wp_delete_post( $this->_id );
+	}
+
+	/**
+	 * Update the post meta.
+	 *
+	 * @return void
+	 */
+	protected function get_post_meta_input() {
+		$meta_input = array();
+		$meta_input['activitypub_inbox'] = $this->get_shared_inbox();
+		$meta_input['activitypub_actor_json'] = $this->to_json();
+
+		return $meta_input;
+	}
+
+	/**
+	 * Get the icon.
+	 *
+	 * Sets a fallback to better handle API and HTML outputs.
+	 *
+	 * @return array The icon.
+	 */
+	public function get_icon() {
+		if ( isset( $this->icon['url'] ) ) {
+			return $this->icon;
+		}
+
+		return array(
+			'type' => 'Image',
+			'mediaType' => 'image/jpeg',
+			'url'  => ACTIVITYPUB_PLUGIN_URL . 'assets/img/mp.jpg',
+		);
+	}
+
+	/**
+	 * Get Name.
+	 *
+	 * Tries to extract a name from the URL or ID if not set.
+	 *
+	 * @return string The name.
+	 */
+	public function get_name() {
+		if ( $this->name ) {
+			return $this->name;
+		} elseif ( $this->preferred_username ) {
+			return $this->preferred_username;
+		}
+
+		return $this->extract_name_from_uri();
+	}
+
+	/**
+	 * The preferred Username.
+	 *
+	 * Tries to extract a name from the URL or ID if not set.
+	 *
+	 * @return string The preferred Username.
+	 */
+	public function get_preferred_username() {
+		if ( $this->preferred_username ) {
+			return $this->preferred_username;
+		}
+
+		return $this->extract_name_from_uri();
+	}
+
+	/**
+	 * Get the Icon URL (Avatar)
+	 *
+	 * @return string The URL to the Avatar.
+	 */
+	public function get_icon_url() {
+		$icon = $this->get_icon();
+
+		if ( ! $icon ) {
+			return '';
+		}
+
+		if ( is_array( $icon ) ) {
+			return $icon['url'];
+		}
+
+		return $icon;
+	}
+
+	/**
+	 * Get the shared inbox, with a fallback to the inbox.
+	 *
+	 * @return string|null The URL to the shared inbox, the inbox or null.
+	 */
+	public function get_shared_inbox() {
+		if ( ! empty( $this->get_endpoints()['sharedInbox'] ) ) {
+			return $this->get_endpoints()['sharedInbox'];
+		} elseif ( ! empty( $this->get_inbox() ) ) {
+			return $this->get_inbox();
+		}
+
+		return null;
+	}
+
+	/**
+	 * Convert a Custom-Post-Type input to an Activitypub\Model\Follower.
+	 *
+	 * @return string The JSON string.
+	 *
+	 * @return array Activitypub\Model\Follower
+	 */
+	public static function init_from_cpt( $post ) {
+		$actor_json = get_post_meta( $post->ID, 'activitypub_actor_json', true );
+		$object = self::init_from_json( $actor_json );
+		$object->set__id( $post->ID );
+		$object->set_id( $post->guid );
+		$object->set_name( $post->post_title );
+		$object->set_summary( $post->post_excerpt );
+		$object->set_published( gmdate( 'Y-m-d H:i:s', strtotime( $post->post_date ) ) );
+		$object->set_updated( gmdate( 'Y-m-d H:i:s', strtotime( $post->post_modified ) ) );
+
+		return $object;
+	}
+
+	/**
+	 * Infer a shortname from the Actor ID or URL. Used only for fallbacks,
+	 * we will try to use what's supplied.
+	 *
+	 * @return string Hopefully the name of the Follower.
+	 */
+	protected function extract_name_from_uri() {
+		// prefer the URL, but fall back to the ID.
+		if ( $this->url ) {
+			$name = $this->url;
+		} else {
+			$name = $this->id;
+		}
+
+		if ( \filter_var( $name, FILTER_VALIDATE_URL ) ) {
+			$name = \rtrim( $name, '/' );
+			$path = \wp_parse_url( $name, PHP_URL_PATH );
+
+			if ( $path ) {
+				if ( \strpos( $name, '@' ) !== false ) {
+					// expected: https://example.com/@user (default URL pattern)
+					$name = \preg_replace( '|^/@?|', '', $path );
+				} else {
+					// expected: https://example.com/users/user (default ID pattern)
+					$parts = \explode( '/', $path );
+					$name  = \array_pop( $parts );
+				}
+			}
+		} elseif (
+			\is_email( $name ) ||
+			\strpos( $name, 'acct' ) === 0 ||
+			\strpos( $name, '@' ) === 0
+		) {
+			// expected: user@example.com or acct:user@example (WebFinger)
+			$name  = \ltrim( $name, '@' );
+			$name  = \ltrim( $name, 'acct:' );
+			$parts = \explode( '@', $name );
+			$name  = $parts[0];
+		}
+
+		return $name;
+	}
+}

wp-content/upgrade-temp-backup/plugins/activitypub/includes/model/class-post.php

@@ -0,0 +1,131 @@
+<?php
+namespace Activitypub\Model;
+
+use Activitypub\Transformer\Post as Post_Transformer;
+
+/**
+ * ActivityPub Post Class
+ *
+ * @author Matthias Pfefferle
+ */
+class Post {
+	/**
+	 * The \Activitypub\Activity\Base_Object object.
+	 *
+	 * @var \Activitypub\Activity\Base_Object
+	 */
+	protected $object;
+
+	/**
+	 * The WordPress Post Object.
+	 *
+	 * @var WP_Post
+	 */
+	private $post;
+
+	/**
+	 * Constructor
+	 *
+	 * @param WP_Post $post
+	 * @param int     $post_author
+	 */
+	// phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.FoundAfterLastUsed, VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
+	public function __construct( $post, $post_author = null ) {
+		_deprecated_function( __CLASS__, '1.0.0', '\Activitypub\Transformer\Post' );
+
+		$this->post   = $post;
+		$this->object = Post_Transformer::transform( $post )->to_object();
+	}
+
+	/**
+	 * Returns the User ID.
+	 *
+	 * @return int the User ID.
+	 */
+	public function get_user_id() {
+		return apply_filters( 'activitypub_post_user_id', $this->post->post_author, $this->post );
+	}
+
+	/**
+	 * Converts this Object into an Array.
+	 *
+	 * @return array the array representation of a Post.
+	 */
+	public function to_array() {
+		return \apply_filters( 'activitypub_post', $this->object->to_array(), $this->post );
+	}
+
+	/**
+	 * Returns the Actor of this Object.
+	 *
+	 * @return string The URL of the Actor.
+	 */
+	public function get_actor() {
+		$user = User_Factory::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() {
+		return $this->object->get_url();
+	}
+
+	/**
+	 * Returns the ID of an Activity Object
+	 *
+	 * @return string
+	 */
+	public function get_id() {
+		return $this->object->get_id();
+	}
+
+	/**
+	 * Returns a list of Image Attachments
+	 *
+	 * @return array
+	 */
+	public function get_attachments() {
+		return $this->object->get_attachment();
+	}
+
+	/**
+	 * Returns a list of Tags, used in the Post
+	 *
+	 * @return array
+	 */
+	public function get_tags() {
+		return $this->object->get_tag();
+	}
+
+	/**
+	 * Returns the as2 object-type for a given post
+	 *
+	 * @return string the object-type
+	 */
+	public function get_object_type() {
+		return $this->object->get_type();
+	}
+
+	/**
+	 * Returns the content for the ActivityPub Item.
+	 *
+	 * @return string the content
+	 */
+	public function get_content() {
+		return $this->object->get_content();
+	}
+}

wp-content/upgrade-temp-backup/plugins/activitypub/includes/model/class-user.php

@@ -0,0 +1,300 @@
+<?php
+namespace Activitypub\Model;
+
+use WP_Query;
+use WP_Error;
+use Activitypub\Signature;
+use Activitypub\Collection\Users;
+use Activitypub\Activity\Actor;
+
+use function Activitypub\is_user_disabled;
+use function Activitypub\get_rest_url_by_path;
+
+class User extends Actor {
+	/**
+	 * The local User-ID (WP_User).
+	 *
+	 * @var int
+	 */
+	protected $_id; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore
+
+	/**
+	 * The Featured-Posts.
+	 *
+	 * @see https://docs.joinmastodon.org/spec/activitypub/#featured
+	 *
+	 * @var string
+	 */
+	protected $featured;
+
+	/**
+	 * Moderators endpoint.
+	 *
+	 * @see https://join-lemmy.org/docs/contributors/05-federation.html
+	 *
+	 * @var string
+	 */
+	protected $moderators;
+
+	/**
+	 * The User-Type
+	 *
+	 * @var string
+	 */
+	protected $type = 'Person';
+
+	/**
+	 * If the User is discoverable.
+	 *
+	 * @see https://docs.joinmastodon.org/spec/activitypub/#discoverable
+	 *
+	 * @var boolean
+	 */
+	protected $discoverable = true;
+
+	/**
+	 * If the User is indexable.
+	 *
+	 * @var boolean
+	 */
+	protected $indexable;
+
+	/**
+	 * The WebFinger Resource.
+	 *
+	 * @var string<url>
+	 */
+	protected $resource;
+
+	/**
+	 * Restrict posting to mods
+	 *
+	 * @see https://join-lemmy.org/docs/contributors/05-federation.html
+	 *
+	 * @var boolean
+	 */
+	protected $posting_restricted_to_mods = null;
+
+	public static function from_wp_user( $user_id ) {
+		if ( is_user_disabled( $user_id ) ) {
+			return new WP_Error(
+				'activitypub_user_not_found',
+				\__( 'User not found', 'activitypub' ),
+				array( 'status' => 404 )
+			);
+		}
+
+		$object = new static();
+		$object->_id = $user_id;
+
+		return $object;
+	}
+
+	/**
+	 * Get the User-ID.
+	 *
+	 * @return string The User-ID.
+	 */
+	public function get_id() {
+		return $this->get_url();
+	}
+
+	/**
+	 * Get the User-Name.
+	 *
+	 * @return string The User-Name.
+	 */
+	public function get_name() {
+		return \esc_attr( \get_the_author_meta( 'display_name', $this->_id ) );
+	}
+
+	/**
+	 * Get the User-Description.
+	 *
+	 * @return string The User-Description.
+	 */
+	public function get_summary() {
+		$description = get_user_meta( $this->_id, 'activitypub_user_description', true );
+		if ( empty( $description ) ) {
+			$description = get_user_meta( $this->_id, 'description', true );
+		}
+		return \wpautop( \wp_kses( $description, 'default' ) );
+	}
+
+	/**
+	 * Get the User-Url.
+	 *
+	 * @return string The User-Url.
+	 */
+	public function get_url() {
+		return \esc_url( \get_author_posts_url( $this->_id ) );
+	}
+
+	/**
+	 * Returns the User-URL with @-Prefix for the username.
+	 *
+	 * @return string The User-URL with @-Prefix for the username.
+	 */
+	public function get_at_url() {
+		return \esc_url( \trailingslashit( get_home_url() ) . '@' . $this->get_username() );
+	}
+
+	public function get_preferred_username() {
+		return \esc_attr( \get_the_author_meta( 'login', $this->_id ) );
+	}
+
+	public function get_icon() {
+		$icon = \esc_url(
+			\get_avatar_url(
+				$this->_id,
+				array( 'size' => 120 )
+			)
+		);
+
+		return array(
+			'type' => 'Image',
+			'url'  => $icon,
+		);
+	}
+
+	public function get_image() {
+		if ( \has_header_image() ) {
+			$image = \esc_url( \get_header_image() );
+			return array(
+				'type' => 'Image',
+				'url'  => $image,
+			);
+		}
+
+		return null;
+	}
+
+	public function get_published() {
+		return \gmdate( 'Y-m-d\TH:i:s\Z', \strtotime( \get_the_author_meta( 'registered', $this->_id ) ) );
+	}
+
+	public function get_public_key() {
+		return array(
+			'id'       => $this->get_id() . '#main-key',
+			'owner'    => $this->get_id(),
+			'publicKeyPem' => Signature::get_public_key_for( $this->get__id() ),
+		);
+	}
+
+	/**
+	 * Returns the Inbox-API-Endpoint.
+	 *
+	 * @return string The Inbox-Endpoint.
+	 */
+	public function get_inbox() {
+		return get_rest_url_by_path( sprintf( 'users/%d/inbox', $this->get__id() ) );
+	}
+
+	/**
+	 * Returns the Outbox-API-Endpoint.
+	 *
+	 * @return string The Outbox-Endpoint.
+	 */
+	public function get_outbox() {
+		return get_rest_url_by_path( sprintf( 'users/%d/outbox', $this->get__id() ) );
+	}
+
+	/**
+	 * Returns the Followers-API-Endpoint.
+	 *
+	 * @return string The Followers-Endpoint.
+	 */
+	public function get_followers() {
+		return get_rest_url_by_path( sprintf( 'users/%d/followers', $this->get__id() ) );
+	}
+
+	/**
+	 * Returns the Following-API-Endpoint.
+	 *
+	 * @return string The Following-Endpoint.
+	 */
+	public function get_following() {
+		return get_rest_url_by_path( sprintf( 'users/%d/following', $this->get__id() ) );
+	}
+
+	/**
+	 * Returns the Featured-API-Endpoint.
+	 *
+	 * @return string The Featured-Endpoint.
+	 */
+	public function get_featured() {
+		return get_rest_url_by_path( sprintf( 'users/%d/collections/featured', $this->get__id() ) );
+	}
+
+	/**
+	 * Extend the User-Output with Attachments.
+	 *
+	 * @return array The extended User-Output.
+	 */
+	public function get_attachment() {
+		$array = array();
+
+		$array[] = array(
+			'type' => 'PropertyValue',
+			'name' => \__( 'Blog', 'activitypub' ),
+			'value' => \html_entity_decode(
+				'<a rel="me" title="' . \esc_attr( \home_url( '/' ) ) . '" target="_blank" href="' . \home_url( '/' ) . '">' . \wp_parse_url( \home_url( '/' ), \PHP_URL_HOST ) . '</a>',
+				\ENT_QUOTES,
+				'UTF-8'
+			),
+		);
+
+		$array[] = array(
+			'type' => 'PropertyValue',
+			'name' => \__( 'Profile', 'activitypub' ),
+			'value' => \html_entity_decode(
+				'<a rel="me" title="' . \esc_attr( \get_author_posts_url( $this->get__id() ) ) . '" target="_blank" href="' . \get_author_posts_url( $this->get__id() ) . '">' . \wp_parse_url( \get_author_posts_url( $this->get__id() ), \PHP_URL_HOST ) . '</a>',
+				\ENT_QUOTES,
+				'UTF-8'
+			),
+		);
+
+		if ( \get_the_author_meta( 'user_url', $this->get__id() ) ) {
+			$array[] = array(
+				'type' => 'PropertyValue',
+				'name' => \__( 'Website', 'activitypub' ),
+				'value' => \html_entity_decode(
+					'<a rel="me" title="' . \esc_attr( \get_the_author_meta( 'user_url', $this->get__id() ) ) . '" target="_blank" href="' . \get_the_author_meta( 'user_url', $this->get__id() ) . '">' . \wp_parse_url( \get_the_author_meta( 'user_url', $this->get__id() ), \PHP_URL_HOST ) . '</a>',
+					\ENT_QUOTES,
+					'UTF-8'
+				),
+			);
+		}
+
+		return $array;
+	}
+
+	/**
+	 * Returns a user@domain type of identifier for the user.
+	 *
+	 * @return string The Webfinger-Identifier.
+	 */
+	public function get_resource() {
+		return $this->get_preferred_username() . '@' . \wp_parse_url( \home_url(), \PHP_URL_HOST );
+	}
+
+	public function get_canonical_url() {
+		return $this->get_url();
+	}
+
+	public function get_streams() {
+		return null;
+	}
+
+	public function get_tag() {
+		return array();
+	}
+
+	public function get_indexable() {
+		if ( \get_option( 'blog_public', 1 ) ) {
+			return true;
+		} else {
+			return false;
+		}
+	}
+}