From 4b2d8bc2edc663048f8d9332d43d31da516bcb53 Mon Sep 17 00:00:00 2001
From: Dennis Eichhorn <spl1nes.com@googlemail.com>
Date: Sat, 7 Dec 2019 21:28:01 +0100
Subject: [PATCH] handle invalid keys

---
 DataStorage/Cache/Connection/MemCached.php  | 4 ++++
 DataStorage/Cache/Connection/RedisCache.php | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/DataStorage/Cache/Connection/MemCached.php b/DataStorage/Cache/Connection/MemCached.php
index 78f9fc978..df58b3140 100644
--- a/DataStorage/Cache/Connection/MemCached.php
+++ b/DataStorage/Cache/Connection/MemCached.php
@@ -106,6 +106,10 @@ class MemCached extends ConnectionAbstract
 
         $result = $this->con->get($key);
 
+        if ($this->con->getResultCode() !== \Memcached::RES_SUCCESS) {
+            return null;
+        }
+
         return $result;
     }
 
diff --git a/DataStorage/Cache/Connection/RedisCache.php b/DataStorage/Cache/Connection/RedisCache.php
index 9f5b752d8..500954199 100644
--- a/DataStorage/Cache/Connection/RedisCache.php
+++ b/DataStorage/Cache/Connection/RedisCache.php
@@ -123,7 +123,7 @@ class RedisCache extends ConnectionAbstract
      */
     public function get($key, int $expire = -1)
     {
-        if ($this->status !== CacheStatus::OK) {
+        if ($this->status !== CacheStatus::OK || !$this->con->exists($key)) {
             return null;
         }