From ccfc936c4aee8d9fda60b4706e2a135db28f6ff6 Mon Sep 17 00:00:00 2001
From: nervuri <seva@nervuri.net>
Date: Fri, 4 Jun 2021 11:25:24 +0000
Subject: [PATCH] fix IDN conversion failure for some emoji domains
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

For example: 🦈🖥.ws
---
 get-certs.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/get-certs.sh b/get-certs.sh
index 80dd8f8..25280dd 100755
--- a/get-certs.sh
+++ b/get-certs.sh
@@ -67,7 +67,7 @@ while read -r host; do
   fi
 
   # Hostname to punycode.
-  host=$(echo "$host" | idn)
+  host=$(echo "$host" | idn --allow-unassigned)
 
   # Hostname to lowercase.
   host=$(echo "$host" | tr '[:upper:]' '[:lower:]')
@@ -117,7 +117,7 @@ while read -r host; do
     # If we got a cert back, then the host and port were valid,
     # so they are safe to include in a file name.
     # Convert from punycode to unicode, if needed.
-    host_and_port=$(echo "$host_and_port" | idn --idna-to-unicode)
+    host_and_port=$(echo "$host_and_port" | idn --allow-unassigned --idna-to-unicode)
     echo "$cert" > "certs/${host_and_port}.pem"
     printf ' - OK'
   else