Fix suspension/installed handling for servers

closes Pterodactyl/Panel#891

app/Http/Controllers/API/Remote/ValidateKeyController.php

@@ -25,6 +25,7 @@
 namespace Pterodactyl\Http\Controllers\Api\Remote;
 
 use Spatie\Fractal\Fractal;
+use Illuminate\Http\Response;
 use Pterodactyl\Http\Controllers\Controller;
 use Illuminate\Contracts\Foundation\Application;
 use Illuminate\Foundation\Testing\HttpException;
@@ -75,12 +76,11 @@ class ValidateKeyController extends Controller
      * @return array
      *
      * @throws \Illuminate\Foundation\Testing\HttpException
-     * @throws \Pterodactyl\Exceptions\Repository\RecordNotFoundException
      */
     public function index($token)
     {
         if (! starts_with($token, DaemonKeyRepositoryInterface::INTERNAL_KEY_IDENTIFIER)) {
-            throw new HttpException(501);
+            throw new HttpException(Response::HTTP_NOT_IMPLEMENTED);
         }
 
         try {
@@ -89,6 +89,10 @@ class ValidateKeyController extends Controller
             throw new NotFoundHttpException;
         }
 
+        if ($key->getRelation('server')->suspended || $key->getRelation('server')->installed !== 1) {
+            throw new NotFoundHttpException;
+        }
+
         return $this->fractal->item($key, $this->app->make(ApiKeyTransformer::class), 'server')
             ->serializeWith(JsonApiSerializer::class)
             ->toArray();