From 11e4968eb417459fac250665b9d274b4bb28f25a Mon Sep 17 00:00:00 2001
From: Helmut Grohne <helmut@subdivi.de>
Date: Sun, 26 Mar 2017 14:39:11 +0200
Subject: port wsgitools.digest to use the new secrets module

---
 wsgitools/digest.py | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/wsgitools/digest.py b/wsgitools/digest.py
index 2f49ff7..4f21af0 100644
--- a/wsgitools/digest.py
+++ b/wsgitools/digest.py
@@ -13,18 +13,21 @@ database using C{DBAPI2NonceStore}.
 
 __all__ = []
 
-import random
 import base64
 import hashlib
 import time
 import os
+try:
+    from secrets import randbits
+except ImportError:
+    import random
+    sysrand = random.SystemRandom()
+    randbits = sysrand.getrandbits
 
 from wsgitools.internal import bytes2str, str2bytes, textopen
 from wsgitools.authentication import AuthenticationRequired, \
         ProtocolViolation, AuthenticationMiddleware
 
-sysrand = random.SystemRandom()
-
 def md5hex(data):
     """
     @type data: str
@@ -41,7 +44,7 @@ def gen_rand_str(bytesentropy=33):
     >>> gen_rand_str() != gen_rand_str()
     True
     """
-    randnum = sysrand.getrandbits(bytesentropy*8)
+    randnum = randbits(bytesentropy*8)
     randstr = ("%%0%dX" % (2*bytesentropy)) % randnum
     randbytes = str2bytes(randstr)
     randbytes = base64.b16decode(randbytes)
-- 
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