Allow for absolute file name specifications.

Author: rohe

src/oidcop/utils.py

@@ -1,5 +1,6 @@
 import io
 import json
+import os
 import ssl
 import sys
 
@@ -37,12 +38,18 @@ def lower_or_upper(config, param, default=None):
 def create_context(dir_path, config, **kwargs):
     _fname = lower_or_upper(config, "server_cert")
     if _fname:
-        _cert_file = "{}/{}".format(dir_path, _fname)
+        if _fname.startswith("/"):
+            _cert_file = _fname
+        else:
+            _cert_file = os.path.join(dir_path, _fname)
     else:
         return None
     _fname = lower_or_upper(config, "server_key")
     if _fname:
-        _key_file = "{}/{}".format(dir_path, _fname)
+        if _fname.startswith("/"):
+            _key_file = _fname
+        else:
+            _key_file = os.path.join(dir_path, _fname)
     else:
         return None