Laravel version update

Laravel version update

vendor/flowjs/flow-php-server/src/Flow/Mongo/MongoUploader.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Flow\Mongo;
+
+use Flow\FileOpenException;
+
+/**
+ * @codeCoverageIgnore
+ */
+class MongoUploader
+{
+    /**
+     * Delete chunks older than expiration time.
+     *
+     * @param \MongoGridFS $gridFs
+     * @param int $expirationTime seconds
+     *
+     * @throws FileOpenException
+     */
+    public static function pruneChunks($gridFs, $expirationTime = 172800)
+    {
+        $result = $gridFs->remove([
+            'flowUpdated' => ['$lt' => new \MongoDate(time() - $expirationTime)],
+            'flowStatus' => 'uploading'
+        ]);
+
+        if (!$result) {
+            throw new FileOpenException("Could not remove chunks!");
+        }
+    }
+}