From 5eb565740b5e8385aadc7ebb90559e4d55d3092d Mon Sep 17 00:00:00 2001
From: Tom Kay <oridan82@gmail.com>
Date: Thu, 30 Jan 2020 10:49:16 +0000
Subject: [PATCH] check format of payload to decode

---
 src/Fident.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Fident.php b/src/Fident.php
index 9298d77..653b954 100644
--- a/src/Fident.php
+++ b/src/Fident.php
@@ -41,6 +41,10 @@ public function verifyJwt(string $rawJwt): bool
   public function decodeJwtPayload(string $rawJwt): ?FidentJwtData
   {
     $data = new FidentJwtData();
+    if(substr_count($rawJwt, '.') !== 2)
+    {
+      return $data;
+    }
 
     [, $payload64,] = explode('.', $rawJwt, 3);
     $payload = json_decode(Strings::urlsafeBase64Decode($payload64));