Merge pull request #1127 from oat-sa/feat/ADF-1683/fix-case-stream-al…

…ready-closed

fix: only close stream in case the resource is valid

common/oatbox/task/AbstractTaskAction.php

@@ -56,7 +56,17 @@ protected function saveFile($path, $name)
 
         $stream = fopen($path, 'r+');
         $filesystem->writeStream($filename, $stream);
-        fclose($stream);
+
+        if (is_resource($stream)) {
+            fclose($stream);
+        } else {
+            $this->logWarning(
+                sprintf(
+                    'Stream for file "%s" is not valid. It may be already closed',
+                    $name
+                )
+            );
+        }
 
         $file = $dir->getFile($filename);
         return $this->getFileReferenceSerializer()->serialize($file);