Fix ack

Author: BrunoSpy

src/MattermostMessenger/Controller/MattermostChatController.php

@@ -281,9 +281,12 @@ public function isAckAction()
         $json = array();
         $postId = $this->params()->fromQuery('postid', null);
         $myReactions = $this->mattermost->getMyReactions($postId);
-        $ok = array_filter($myReactions, function($v){
-            return strcmp($v['emoji_name'], 'ok') == 0;
-        });
+        $ok = array();
+        if($myReactions !== null) {
+            $ok = array_filter($myReactions, function ($v) {
+                return strcmp($v['emoji_name'], 'ok') == 0;
+            });
+        }
         $json['ack'] = count($ok) == 1;
         return new JsonModel($json);
     }

src/MattermostMessenger/Service/MattermostService.php

@@ -317,9 +317,13 @@ public function getMyReactions($postId)
         $result = $this->getClient()->getPostModel()->getReactions($postId);
         if($result->getStatusCode() == 200) {
             $reactions = json_decode($result->getBody(), true);
-            $myReactions = array_filter($reactions, function($v){
-                return strcmp($v['user_id'], $this->getMyId()) == 0;
-            });
+            if($reactions !== null) {
+                $myReactions = array_filter($reactions, function($v){
+                    return strcmp($v['user_id'], $this->getMyId()) == 0;
+                });
+            } else {
+                return null;
+            }
             return $myReactions;
         } else {
             error_log(print_r(json_decode($result->getBody()), true));