ActivityPub: Add a NodeInfo

Web/Models/Repositories/Comments.php

@@ -59,4 +59,9 @@ class Comments
             "deleted" => false,
         ]));
     }
+
+    function getCountOfAllComments(): int
+    {
+        return sizeof($this->comments->where(["deleted" => false]));
+    }
 }

Web/Models/Repositories/Posts.php

@@ -105,4 +105,9 @@ class Posts
     {
         return sizeof($this->posts->where(["wall" => $user, "deleted" => 0]));
     }
+
+    function getCountOfAllPosts(): int
+    {
+        return sizeof($this->posts->where(["deleted" => 0]));
+    }
 }

Web/Models/Repositories/Users.php

@@ -1,6 +1,8 @@
 <?php declare(strict_types=1);
 namespace openvk\Web\Models\Repositories;
 use openvk\Web\Models\Entities\User;
+use openvk\Web\Models\Repositories\Posts;
+use openvk\Web\Models\Repositories\Comments;
 use Nette\Database\Table\ActiveRow;
 use Chandler\Database\DatabaseConnection;
 use Chandler\Security\User as ChandlerUser;
@@ -47,9 +49,11 @@ class Users
     function getStatistics(): object
     {
         return (object) [
-            "all"    => sizeof(clone $this->users),
-            "active" => sizeof((clone $this->users)->where("online > 0")),
-            "online" => sizeof((clone $this->users)->where("online >= ?", time() - 900)),
+            "all"      => sizeof(clone $this->users),
+            "active"   => sizeof((clone $this->users)->where("online > 0")),
+            "online"   => sizeof((clone $this->users)->where("online >= ?", time() - 900)),
+            "posts"    => (new Posts)->getCountOfAllPosts(),
+            "comments" => (new Comments)->getCountOfAllComments()
         ];
     }
 

Web/Presenters/ActivityPubPresenter.php

@@ -14,6 +14,13 @@ final class ActivityPubPresenter extends OpenVKPresenter
 
             header("Content-Type: application/xrd+xml; charset=utf-8");
             exit($data);
+        } else if ($_SERVER['REQUEST_URI'] == "/.well-known/nodeinfo") {
+            $response->links = array(array(
+                "href" => ovk_scheme(true) . $_SERVER["SERVER_NAME"] . '/nodeinfo/2.0',
+                'rel' => "http://nodeinfo.diaspora.software/ns/schema/2.0"
+            ));
+            
+            $this->returnJson((array) $response);
         } else if ($this->startsWith($_SERVER["REQUEST_URI"], '/.well-known/webfinger') && $this->startsWith($this->requestParam("resource"), 'acct:')) {
             $username = array();
             $subject = substr($this->requestParam("resource"), 5, strlen($this->requestParam("resource")));
@@ -43,6 +50,25 @@ final class ActivityPubPresenter extends OpenVKPresenter
         }
     }
 
+    function renderNodeinfo()
+    {
+        $stats = (new Users)->getStatistics();
+
+        $response->version = '2.0';
+        $response->protocols = array('activitypub');
+        $response->openRegistrations = OPENVK_ROOT_CONF['openvk']['preferences']['registration']['enable'];
+        $response->software = array('name' => 'openvk',
+                                    'version' => OPENVK_VERSION);
+        $response->usage = array('localPosts' => $stats->posts,
+                                'localComments' => $stats->comments,
+                                'users' => array(
+                                    'total' => $stats->all
+                                ));
+        $response->metadata = (object)array();
+
+        $this->returnJson((array) $response);
+    }
+
     private function startsWith($string, $startString)
     {
         $len = strlen($startString);

Web/routes.yml

@@ -269,6 +269,8 @@ routes:
       handler: "ActivityPub->WellKnown"
       placeholders:
           uri: ".+"
+    - url: "/nodeinfo/2.0"
+      handler: "ActivityPub->nodeinfo"
     - url: "/{?shortCode}"
       handler: "UnknownTextRouteStrategy->delegate"
       placeholders: