Updated plugin as per the doc

ActivityPubPlugin.php

@@ -22,6 +22,7 @@
  * @category  Plugin
  * @package   GNUsocial
  * @author    Daniel Supernault <danielsupernault@gmail.com>
+ * @author    Diogo Cordeiro <diogo@fc.up.pt>
  * @copyright 2014 Free Software Foundation http://fsf.org
  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  * @link      https://www.gnu.org/software/social/
@@ -34,16 +35,16 @@ class ActivityPubPlugin extends Plugin
 
     public function onRouterInitialized(URLMapper $m)
     {
-        $m->connect('api/statuses/user_timeline/:id.ap',
+        $m->connect(':nickname/profile.json',
-                    ['action' => 'activitypubactor'],
+                    ['action'    => 'apActorProfile'],
-                    ['id'     => '[0-9]+']);
+                    ['nickname'  => Nickname::DISPLAY_FMT]);
     }
 
     public function onPluginVersion(array &$versions)
     {
         $versions[] = [ 'name' => 'ActivityPub',
                         'version' => GNUSOCIAL_VERSION,
-                        'author' => 'Daniel Supernault',
+                        'author' => 'Daniel Supernault, Diogo Cordeiro',
                         'homepage' => 'https://www.gnu.org/software/social/',
                         'rawdescription' =>
                         // Todo: Translation

README.md

@@ -1,3 +1,2 @@
 # ActivityPub GNU/Social Plugin
-
+Warning: This is still a work in progress, not every ActivityPub property is fully implemented yet.
-Warning: This is still a work in progress, not every ActivityPub property is fully implemented yet.

actions/apactorprofile.php

@@ -22,6 +22,7 @@
  * @category  Plugin
  * @package   GNUsocial
  * @author    Daniel Supernault <danielsupernault@gmail.com>
+ * @author    Diogo Cordeiro <diogo@fc.up.pt>
  * @copyright 2015 Free Software Foundaction, Inc.
  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  * @link      https://gnu.io/social
@@ -29,18 +30,23 @@
 
 if (!defined('GNUSOCIAL')) { exit(1); }
 
-class ActivityPubActorAction extends ManagedAction
+class apActorProfileAction extends ManagedAction
 {
     protected $needLogin = false;
     protected $canPost   = true;
 
     protected function handle()
     {
-        $user = User::getByID($this->trimmed('id'));
+        $nickname = $this->trimmed('nickname');
-        $profile = $user->getProfile();
+        try {
-        $url = $profile->profileurl;
+          $user = User::getByNickname($nickname);
+          $profile = $user->getProfile();
+          $url = $profile->profileurl;
+        } catch (Exception $e) {
+          throw new \Exception('Invalid username');
+        }
 
-        $avatar = $profile->avatarUrl(AVATAR_PROFILE_SIZE);
+        $avatar_url = $profile->avatarUrl(AVATAR_PROFILE_SIZE);
 
         $res = [
           '@context'          => [
@@ -49,27 +55,29 @@ class ActivityPubActorAction extends ManagedAction
               "@language" => "en"
             ]
           ],
-          'id'                => $url,
+          'id'                => $user->getID(),
           'type'              => 'Person',
-          'following'         => "{$url}/subscriptions",
+          'username'          => $user->nickname,
+          'inbox'             => "{$url}/inbox.json",
+          'outbox'            => "{$url}/outbox.json",
+          'acct'              => null,                       // TODO: Equals `username` for local users, includes `@domain` for remote ones
+          'display_name'      => $profile->fullname,
           'followers'         => "{$url}/subscribers",
-          'inbox'             => null,
+          'following'         => "{$url}/subscriptions",
-          'outbox'            => null,
+          'liked'             => "{$url}/liked.json",
-          'liked'             => "{$url}/favorites",
+          'liked_count'       => Fave::countByProfile ($profile),
-          'preferredUsername' => $user->nickname,
-          'name'              => $user->nickname,
           'summary'           => $profile->bio,
           'url'               => $url,
-          'icon'              => [
+          'avatar'            => [
             'type'   => 'Image',
             'width'  => 96,
             'height' => 96,
-            'url'    => $avatar
+            'url'    => $avatar_url
           ]
         ];
 
         header('Content-Type: application/json');
 
-        echo json_encode($res, JSON_PRETTY_PRINT);
+        echo json_encode($res, isset($_GET["pretty"]) ? JSON_PRETTY_PRINT : null);
     }
 }

classes/Activitypub_notice.php

@@ -0,0 +1,64 @@
+<?php
+/**
+ * GNU social - a federating social network
+ *
+ * Todo: Description
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category  Plugin
+ * @package   GNUsocial
+ * @author    Daniel Supernault <danielsupernault@gmail.com>
+ * @author    Diogo Cordeiro <diogo@fc.up.pt>
+ * @copyright 2015 Free Software Foundaction, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      https://gnu.io/social
+ */
+
+if (!defined('GNUSOCIAL')) { exit(1); }
+
+class Activitypub_notice extends Managed_DataObject
+{
+
+    public static function noticeToObject($notice)
+    {
+      // todo: fix timestamp formats
+      $item = [
+        'id'  => $notice->getUrl(),
+        // TODO: handle other types
+        'type' => 'Notice',
+        'actor' => $notice->getProfile()->getUrl(),
+        'published' => $notice->created,
+        'to' => [
+            // TODO: handle proper scope
+          'https://www.w3.org/ns/activitystreams#Public'
+        ],
+        'cc' => [
+            // TODO: add cc's
+          "{$notice->getProfile()->getUrl()}/subscribers",
+        ],
+        'content' => $notice->getContent(),
+        'rendered' => $notice->getRendered(),
+        'url' => $notice->getUrl(),
+        'reply_to' => empty($notice->reply_to) ? null : Notice::getById($notice->reply_to)->getUrl(),
+        'is_local' => $notice->is_local,
+        'conversation' => $notice->conversation,
+        'attachment' => [],
+        'tag' => []
+      ];
+      return $item;
+    }
+}