B2B-1876: New directories in pub/media do not get synced back to local filesystem from S3 Remote Storage

- address code review comment

Author: joanhe

app/code/Magento/RemoteStorage/Model/Filesystem/Directory/WriteFactory.php

@@ -5,6 +5,8 @@
  */
 namespace Magento\RemoteStorage\Model\Filesystem\Directory;
 
+use Magento\Framework\Filesystem\Directory\CompositePathValidator;
+use Magento\Framework\Filesystem\Directory\DenyListPathValidator;
 use Magento\Framework\Filesystem\Directory\PathValidator;
 use Magento\Framework\Filesystem\Directory\WriteFactory as BaseWriteFactory;
 use Magento\RemoteStorage\Driver\DriverPool;
@@ -54,14 +56,21 @@ public function create($path, $driverCode = DriverPool::REMOTE, $createPermissio
             $factory = new \Magento\Framework\Filesystem\File\WriteFactory(
                 $this->driverPool
             );
+
+            $validators = [
+                'pathValidator' => new PathValidator($driver),
+                'denyListPathValidator' => new DenyListPathValidator($driver)
+            ];
+
+            $pathValidator = new CompositePathValidator($validators);
             return $this->objectManager->create(
                 Write::class,
                 [
                     'fileFactory' => $factory,
                     'driver' => $driver,
                     'path' => $path,
                     'createPermissions' => $createPermissions,
-                    'pathValidator' => new PathValidator($driver),
+                    'pathValidator' => $pathValidator
                 ]
             );
         } else {

app/code/Magento/RemoteStorage/etc/di.xml

@@ -20,12 +20,16 @@
             <argument name="driverPool" xsi:type="object">Magento\RemoteStorage\Driver\DriverPool</argument>
         </arguments>
     </virtualType>
+    <type name="Magento\Framework\Filesystem\Directory\ReadFactory">
+        <arguments>
+            <argument name="driverPool" xsi:type="object">Magento\RemoteStorage\Driver\DriverPool</argument>
+        </arguments>
+    </type>
     <type name="Magento\RemoteStorage\Filesystem">
         <arguments>
             <argument name="writeFactory" xsi:type="object">
                 Magento\RemoteStorage\Model\Filesystem\Directory\WriteFactory
             </argument>
-            <argument name="readFactory" xsi:type="object">remoteReadFactory</argument>
         </arguments>
     </type>
     <virtualType name="customRemoteFilesystem" type="Magento\RemoteStorage\Filesystem">