0.1.0

* added basic WebFinger support
* added basic NodeInfo support
* fully functional "follow" activity
* send new posts to your followers
* receive comments from your followers

Author: pfefferle

.travis.yml

@@ -17,7 +17,7 @@ env:
   - WP_TRAVISCI=travis:phpunit
   - SVN_REPO: https://plugins.svn.wordpress.org/activitypub/
   - GH_REF: https://github.com/pfefferle/wordpress-activitypub.git
-  - secure: k6uZL/zVYvuSsG4tUMvVC6+DTYKSueOYj6j9csKSa08EzPl0JLPoNN/5MPihi+zZkBPLL+KjBgUUYfBtdcOh/xwPb+lilg5UnvM7TKQEG583RtBbohADvahQHN4mxZb6yBvrmvbB5jNtf+3L4RcOgdONEb2CpGo5n8RRM3MXxF4WSn9s+F+P0fvWCpcZnM9yqgbTJNUaZHw4tRWQ7eYZ5kFxSxKSnZd5+149UAh2YcKjA+ix3rrK0ClOlGaMVZz+SV4/qoNwamxMTMAQ6Be1wIelXz0n92FIonw6euDfBSgNLg+WLiAYoqaM+tEluLV1DRcx5TLUfmAOGli6pEfqL6XZxf8iZheMtn5Ir0nR4vLbOUKEojqEpLwmlUjiTN6RSZbPMquBNz/lOEQd9S/EzPLrtvlBRYAq0EmI62KtXVG+vHta2TTF+LS0caXjVZaHcpF4SYmuG5WyR6d0KpnVw6czvXu7hyq2sNz6lj1hUt15pPZO8tFkJFTs87pOBfEj/GnjIE4Iab2HA/HgdWqFpB+5ZAWH9QDIa9c3+QUQQf2qA7Z1yS0c5SBn/TE+0O3yomyBTD63Zc7gNG2qqw+THql5fzG3iGV5M6db+yTY0INfsJYuRjQXpn9Q35ZTxgXEEvu7naHh162wa14K18zzXoVEjhywOoW3X1Qiz6VFK8s=
+  - secure: "WaeBLo0MDuK4X7NQvk5Ie5BVnexHtyDfHAV8v7dB8B67d8GCWy9K5I54jTECNRUC+CecMakLq5DOfn+ThtWdkJmoJKnGNFp8ZrWkMsfVJRi3CDED2HkccOrxkmXBj8Z6A8jZjcfVNrEmq/6697xVNRGeaS08l9rokh7pyb8INWY="
 matrix:
   include:
   - php: 7.2

README.md

@@ -3,7 +3,7 @@
 **Donate link:** https://notiz.blog/donate/  
 **Tags:** OStatus, fediverse, activitypub, activitystream  
 **Requires at least:** 4.7  
-**Tested up to:** 5.0  
+**Tested up to:** 5.0.2  
 **Stable tag:** 0.1.0  
 **Requires PHP:** 5.6  
 **License:** MIT  
@@ -13,9 +13,9 @@ The ActivityPub protocol is a decentralized social networking protocol based upo
 
 ## Description ##
 
-This is **BETA** software, see the FAQ to see what works and what still needs to be implemented or is in planning.
+This is **BETA** software, see the FAQ to see the current feature set or rather what is still planned.
 
-This plugin enables ActivityPub for your Blog. Your readers will be able to follow your Blogposts on Mastodon and other Federated Plattforms that support ActivityPub.
+This plugin implements the ActivityPub for your Blog. Your readers will be able to follow your Blogposts on Mastodon and other Federated Plattforms that support ActivityPub.
 
 ## Frequently Asked Questions ##
 
@@ -26,30 +26,34 @@ Implemented:
 * profile pages (JSON representation)
 * custom links
 * functional inbox/outbox
-* follow (accept follows)
+* follow (accept follows)
+* share posts
+* receive comments/reactions
 
 To implement:
 
-* share posts
-* share comments
+* signature verification
+* better WordPress integration
+* better configuration possibilities
+* threaded comments support
 
 ### Why does the plugin not support ...? ###
 
 *ActivityPub* extends WordPress with some fediverse features, but it does not compete with plattforms like Friendi.ca or Mastodon. If you want to have a **decentralized social network**, please use [Mastodon](https://joinmastodon.org/) or [GNU.social](https://gnu.io/social/).
 
-### What are the differences to Pterotype? ###
+### What are the differences between this plugin and Pterotype? ###
 
 **PHP Version**
 
-*ActivityPub* needs PHP 5.6, *Pterotype* requires 7.2.x
+*This plugin* needs PHP 5.6, *Pterotype* requires 7.2.x
 
 **Compatibility**
 
-*ActivityPub* is compatible with OStatus and the IndieWeb movement. *Pterotype* implements its own WebFinger endpoint, that is not compatible with the [WebFinger plugin](https://wordpress.org/plugins/webfinger/).
+*This plugin* is compatible with OStatus and the IndieWeb movement. *Pterotype* implements for example its own WebFinger endpoint, which is not compatible with the [WebFinger plugin](https://wordpress.org/plugins/webfinger/).
 
 **Custom tables**
 
-*Pterotype* creates/uses a bunch of custom tables, *ActivityPub* only uses the native tables and adds as few meta data as possible.
+*Pterotype* creates/uses a bunch of custom tables, *this plugin* only uses the native tables and adds as few meta data as possible.
 
 ## Changelog ##
 
@@ -59,7 +63,9 @@ Project maintained on github at [pfefferle/wordpress-activitypub](https://github
 
 * added basic WebFinger support
 * added basic NodeInfo support
-* fully functional "follow" activity
+* fully functional "follow" activity
+* send new posts to your followers
+* receive comments from your followers
 
 ### 0.0.2 ###
 

activitypub.php

@@ -18,6 +18,7 @@
 function activitypub_init() {
 	require_once dirname( __FILE__ ) . '/includes/class-activitypub-signature.php';
 	require_once dirname( __FILE__ ) . '/includes/class-activitypub-post.php';
+	require_once dirname( __FILE__ ) . '/includes/class-activitypub-activity.php';
 	require_once dirname( __FILE__ ) . '/includes/class-db-activitypub-followers.php';
 	require_once dirname( __FILE__ ) . '/includes/functions.php';
 
@@ -29,9 +30,16 @@ function activitypub_init() {
 	// Configure the REST API route
 	require_once dirname( __FILE__ ) . '/includes/class-rest-activitypub-outbox.php';
 	add_action( 'rest_api_init', array( 'Rest_Activitypub_Outbox', 'register_routes' ) );
+	add_action( 'activitypub_send_post_activity', array( 'Rest_Activitypub_Outbox', 'send_post_activity' ) );
 
 	require_once dirname( __FILE__ ) . '/includes/class-rest-activitypub-inbox.php';
 	add_action( 'rest_api_init', array( 'Rest_Activitypub_Inbox', 'register_routes' ) );
+	//add_filter( 'rest_pre_serve_request', array( 'Rest_Activitypub_Inbox', 'serve_request' ), 11, 4 );
+	add_action( 'activitypub_inbox_follow', array( 'Rest_Activitypub_Inbox', 'handle_follow' ), 10, 2 );
+	add_action( 'activitypub_inbox_unfollow', array( 'Rest_Activitypub_Inbox', 'handle_unfollow' ), 10, 2 );
+	add_action( 'activitypub_inbox_like', array( 'Rest_Activitypub_Inbox', 'handle_reaction' ), 10, 2 );
+	add_action( 'activitypub_inbox_announce', array( 'Rest_Activitypub_Inbox', 'handle_reaction' ), 10, 2 );
+	add_action( 'activitypub_inbox_create', array( 'Rest_Activitypub_Inbox', 'handle_create' ), 10, 2 );
 
 	require_once dirname( __FILE__ ) . '/includes/class-rest-activitypub-followers.php';
 	add_action( 'rest_api_init', array( 'Rest_Activitypub_Followers', 'register_routes' ) );
@@ -45,11 +53,17 @@ function activitypub_init() {
 	add_filter( 'nodeinfo_data', array( 'Rest_Activitypub_Nodeinfo', 'add_nodeinfo_discovery' ), 10, 2 );
 	add_filter( 'nodeinfo2_data', array( 'Rest_Activitypub_Nodeinfo', 'add_nodeinfo2_discovery' ), 10 );
 
-	// Configure activities
-	require_once dirname( __FILE__ ) . '/includes/class-activitypub-activities.php';
-	add_action( 'activitypub_inbox_follow', array( 'Activitypub_Activities', 'accept' ), 10, 2 );
-	add_action( 'activitypub_inbox_follow', array( 'Activitypub_Activities', 'follow' ), 10, 2 );
-	add_action( 'activitypub_inbox_unfollow', array( 'Activitypub_Activities', 'unfollow' ), 10, 2 );
+	add_post_type_support( 'post', 'activitypub' );
+	add_post_type_support( 'page', 'activitypub' );
+
+	$post_types = get_post_types_by_support( 'activitypub' );
+	foreach ( $post_types as $post_type ) {
+		add_action( 'publish_' . $post_type, array( 'Activitypub', 'schedule_post_activity' ) );
+	}
+
+	require_once dirname( __FILE__ ) . '/includes/class-activitypub-admin.php';
+	add_action( 'admin_menu', array( 'Activitypub_Admin', 'admin_menu' ) );
+	add_action( 'admin_init', array( 'Activitypub_Admin', 'register_settings' ) );
 }
 add_action( 'plugins_loaded', 'activitypub_init' );
 

includes/class-activitypub-activities.php

@@ -0,0 +1,84 @@
+<?php
+/**
+ * ActivityPub Post Class
+ *
+ * @author Matthias Pfefferle
+ */
+class Activitypub_Activity {
+	private $context = array( 'https://www.w3.org/ns/activitystreams' );
+	private $published = '';
+	private $id = '';
+	private $type = 'Create';
+	private $actor = '';
+	private $to = array( 'https://www.w3.org/ns/activitystreams#Public' );
+	private $cc = array( 'https://www.w3.org/ns/activitystreams#Public' );
+	private $object = null;
+
+	const TYPE_SIMPLE = 'simple';
+	const TYPE_FULL = 'full';
+	const TYPE_NONE = 'none';
+
+	public function __construct( $type = 'Create', $context = self::TYPE_SIMPLE ) {
+		if ( 'none' === $context ) {
+			$this->context = null;
+		} elseif ( 'full' === $context ) {
+			$this->context = get_activitypub_context();
+		}
+
+		$this->type = ucfirst( $type );
+		$this->published = date( 'Y-m-d\TH:i:s\Z', strtotime( 'now' ) );
+	}
+
+	public function __call( $method, $params ) {
+		$var = strtolower( substr( $method, 4 ) );
+
+		if ( strncasecmp( $method, 'get', 3 ) === 0 ) {
+			return $this->$var;
+		}
+
+		if ( strncasecmp( $method, 'set', 3 ) === 0 ) {
+			$this->$var = $params[0];
+		}
+	}
+
+	public function from_post( $object ) {
+		$this->object = $object;
+		$this->published = $object['published'];
+		$this->actor = $object['attributedTo'];
+		$this->id = $object['id'];
+	}
+
+	public function from_comment( $object ) {
+
+	}
+
+	public function to_array() {
+		$array = get_object_vars( $this );
+
+		if ( $this->context ) {
+			$array = array( '@context' => $this->context ) + $array;
+		}
+
+		unset( $array['context'] );
+
+		return $array;
+	}
+
+	public function to_json() {
+		return wp_json_encode( $this->to_array() );
+	}
+
+	public function to_simple_array() {
+		return array(
+			'@context' => $this->context,
+			'type' => $this->type,
+			'actor' => $this->actor,
+			'object' => $this->object,
+			'to' => $this->to,
+		);
+	}
+
+	public function to_simple_json() {
+		return wp_json_encode( $this->to_simple_array() );
+	}
+}

includes/class-activitypub-activity.php

@@ -0,0 +1,54 @@
+<?php
+/**
+ * ActivityPub Admin Class
+ */
+class Activitypub_Admin {
+	/**
+	 * Add admin menu entry
+	 */
+	public static function admin_menu() {
+		$settings_page = add_options_page(
+			'ActivityPub',
+			'ActivityPub',
+			'manage_options',
+			'activitypub',
+			array( 'Activitypub_Admin', 'settings_page' )
+		);
+
+		add_action( 'load-' . $settings_page, array( 'Activitypub_Admin', 'add_help_tab' ) );
+	}
+
+	/**
+	 * Load settings page
+	 */
+	public static function settings_page() {
+		load_template( dirname( __FILE__ ) . '/../templates/settings-page.php' );
+	}
+
+	/**
+	 * Register PubSubHubbub settings
+	 */
+	public static function register_settings() {
+		register_setting( 'activitypub', 'activitypub_feed_use_excerpt' );
+	}
+
+	public static function add_help_tab() {
+		get_current_screen()->add_help_tab(
+			array(
+				'id'      => 'overview',
+				'title'   => __( 'Overview', 'activitypub' ),
+				'content' =>
+					'<p>' . __( 'ActivityPub is a decentralized social networking protocol based on the ActivityStreams 2.0 data format. ActivityPub is an official W3C recommended standard published by the W3C Social Web Working Group. It provides a client to server API for creating, updating and deleting content, as well as a federated server to server API for delivering notifications and subscribing to content.', 'activitypub' ) . '</p>',
+			)
+		);
+
+		get_current_screen()->set_help_sidebar(
+			'<p><strong>' . __( 'For more information:', 'activitypub' ) . '</strong></p>' .
+			'<p>' . __( '<a href="https://activitypub.rocks/">Test Suite</a>', 'activitypub' ) . '</p>' .
+			'<p>' . __( '<a href="https://www.w3.org/TR/activitypub/">W3C Spec</a>', 'activitypub' ) . '</p>' .
+			'<p>' . __( '<a href="https://github.com/pfefferle/wordpress-activitypub/issues">Give us feedback</a>', 'activitypub' ) . '</p>' .
+			'<hr />' .
+			'<p>' . __( '<a href="https://notiz.blog/donate">Donate</a>', 'activitypub' ) . '</p>'
+		);
+	}
+}