Expose main site moderator IDs

src/Endpoint.php

@@ -40,4 +40,5 @@ abstract class Endpoint
     // main site info
     const MAINSITE_URLS_START          = 500;
     const MAINSITE_USER                = 501;
+    const MAINSITE_MODERATOR_LIST      = 502;
 }

src/EndpointURLResolver.php

@@ -37,6 +37,7 @@ class EndpointURLResolver
         Endpoint::CHAT_USER_INFO_EXTRA         => 'https://%1$s/users/thumbs/%3$d?showUsage=false',
 
         Endpoint::MAINSITE_USER                => '%1$s/users/%2$d?tab=profile',
+        Endpoint::MAINSITE_MODERATOR_LIST      => '%1$s/users?tab=moderators',
     ];
 
     private $connectedRooms;

src/Room/AclDataAccessor.php

@@ -18,6 +18,12 @@ function getRoomAccess(Room $room): Promise;
      */
     function getRoomOwners(Room $room): Promise;
 
+    /**
+     * @param Room $room
+     * @return Promise<string[]>
+     */
+    function getMainSiteModerators(Room $room): Promise;
+
     /**
      * @param Room $room
      * @param int $userId

src/Room/ChatRoomAclDataAccessor.php

@@ -9,6 +9,8 @@
 use Room11\StackChat\Auth\ActiveSessionTracker;
 use Room11\StackChat\Endpoint;
 use Room11\StackChat\EndpointURLResolver;
+use function Room11\DOMUtils\domdocument_load_html;
+use function Room11\DOMUtils\xpath_get_elements;
 
 class ChatRoomAclDataAccessor implements AclDataAccessor
 {
@@ -62,8 +64,7 @@ public function getRoomAccess(Room $room): Promise
         return \Amp\resolve(function() use($url) {
             /** @var HttpResponse $response */
             $response = yield $this->httpClient->request($url);
-
-            $doc = \Room11\DOMUtils\domdocument_load_html($response->getBody());
+            $doc = domdocument_load_html($response->getBody());
 
             $result = [];
 
@@ -76,6 +77,35 @@ public function getRoomAccess(Room $room): Promise
         });
     }
 
+    public function getMainSiteModerators(Room $room): Promise
+    {
+        $url = $this->urlResolver->getEndpointURL($room, Endpoint::MAINSITE_MODERATOR_LIST);
+
+        $promise = $this->httpClient->request($url);
+        return \Amp\resolve(function() use ($promise) {
+            /** @var HttpResponse $response */
+            $response = yield $promise;
+
+            $doc = domdocument_load_html($response->getBody());
+            try {
+                $userElements = xpath_get_elements($doc, "//div[@id='user-browser']//div[contains(concat(' ', normalize-space(@class), ' '), ' user-details ')]//a[1]");
+            } catch (ElementNotFoundException $e) {
+                return [];
+            }
+
+            $moderators = [];
+
+            foreach ($userElements as $userElement) {
+                preg_match('#/users/(?<id>\d+)/#', $userElement->getAttribute('href'), $urlParts);
+                $moderators[(int) $urlParts['id']] = trim($userElement->textContent);
+            }
+
+            return $moderators;
+
+        });
+
+    }
+
     /**
      * {@inheritdoc}
      */

src/Room/UserAccessType.php

@@ -7,4 +7,5 @@ class UserAccessType
     const READ_ONLY = 'read-only';
     const READ_WRITE = 'read-write';
     const OWNER = 'owner';
+    const SITE_MODERATOR = 'site-moderator';
 }