From fa772012d65ab23c0c7ad3dc386e9de6d53845eb Mon Sep 17 00:00:00 2001
From: +++ <berhsi@web.de>
Date: Tue, 30 Jul 2019 22:20:45 +0200
Subject: [PATCH] statusd.py: certs_readable() checks if cert is defined

---
 statusd.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/statusd.py b/statusd.py
index dc68d3c..53a324a 100755
--- a/statusd.py
+++ b/statusd.py
@@ -42,9 +42,13 @@ def read_config(CONFIGFILE, CONFIG):
 
 
 def certs_readable(config):
-
+    '''
+    checks at start, if the needed certificates defined (no nullstring) and readable.
+    param 1: dictionary
+    return: boolean
+    '''
     for i in (config['SERVER_KEY'], config['SERVER_CERT'], config['CLIENT_CERT']):
-        if os.access(i, os.R_OK) == False:
+        if  i == '' or os.access(i, os.R_OK) == False:
             logging.error('Cant read {}'.format(i))
             return False
     return True