From 7167a9e108c62a865a0a6d1df2084e404d3cd2ef Mon Sep 17 00:00:00 2001
From: Brad Warren <bmw@eff.org>
Date: Fri, 6 May 2016 16:41:23 -0700
Subject: [PATCH] fixes #2927

---
 certbot/plugins/standalone.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/certbot/plugins/standalone.py b/certbot/plugins/standalone.py
index a3bb1d8f0..16e9dc11b 100644
--- a/certbot/plugins/standalone.py
+++ b/certbot/plugins/standalone.py
@@ -120,6 +120,13 @@ def supported_challenges_validator(data):
 
     """
     challs = data.split(",")
+
+    # tls-sni-01 was dvsni during private beta
+    if "dvsni" in challs:
+        challs = [challenges.TLSSNI01.typ if chall == "dvsni" else chall
+                  for chall in challs]
+        data = ",".join(challs)
+
     unrecognized = [name for name in challs
                     if name not in challenges.Challenge.TYPES]
     if unrecognized: