From 2c9ed4c565c90833e38fc838a14455c8da8f55f8 Mon Sep 17 00:00:00 2001
From: neilpang <github@byneil.com>
Date: Sun, 18 Jun 2017 10:18:20 +0800
Subject: [PATCH] check invalid subject cn in the csr fix
 https://github.com/Neilpang/acme.sh/issues/805

---
 acme.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/acme.sh b/acme.sh
index 8c067fd2..9ff8001f 100755
--- a/acme.sh
+++ b/acme.sh
@@ -3940,6 +3940,10 @@ signcsr() {
     return 1
   fi
   _debug _csrsubj "$_csrsubj"
+  if _contains "$_csrsubj" ' ' || ! _contains "$_csrsubj" '.'; then
+    _info "It seems that the subject: $_csrsubj is not a valid domain name. Drop it."
+    _csrsubj=""
+  fi
 
   _csrdomainlist=$(_readSubjectAltNamesFromCSR "$_csrfile")
   if [ "$?" != "0" ]; then