Add JSON validation.

Author: ProjectInfinity

plugin.yml

@@ -1,7 +1,7 @@
 name: PocketVote
 main: ProjectInfinity\PocketVote\PocketVote
-version: 2.1.0
-api: [3.0.0-ALPHA6, 3.0.0-ALPHA7, 3.0.0-ALPHA8, 3.0.0-ALPHA9]
+version: 2.1.1
+api: [3.0.0-ALPHA6, 3.0.0-ALPHA7, 3.0.0-ALPHA8, 3.0.0-ALPHA9, 3.0.0-ALPHA10]
 author: ProjectInfinity
 permissions:
   pocketvote.admin:

src/ProjectInfinity/PocketVote/task/VRCCheckTask.php

@@ -44,6 +44,13 @@ public function onRun() {
 
                 $result = json_decode($res);
 
+                if(empty($result) || \is_string($result)) {
+                    $results[] = $this->createResult(true, 'Failed to parse JSON response from '.$url['host'].'. This is likely a problem with the mentioned site.');
+                    $this->setResult($results);
+                    curl_close($curl);
+                    return;
+                }
+
                 if(!isset($result->voted) || !isset($result->claimed)) {
                     $results[] = $this->createResult(true, 'Vote or claim field was missing in response from '.$url['host']);
                     $this->setResult($results);
@@ -138,7 +145,7 @@ public function onCompletion(Server $server) {
 
         foreach($results as $result) {
             if((object) $result->hasError()) {
-                $server->getLogger()->error('[PocketVote] VRCCheckTask an issue occurred:'.$result->getError()['message']);
+                $server->getLogger()->error('[PocketVote] VRCCheckTask: An issue occurred, you can ignore this unless it happens often: '.$result->getError()['message']);
                 return;
             }
             $vote = (object) $result->getVotes();