From 04772d4f08b37c68af6c6bde6955c087f1339057 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?B=C5=82a=C5=BCej=20Cegie=C5=82ka?=
 <blazej.cegielka@gmail.com>
Date: Thu, 28 May 2020 12:27:45 +0100
Subject: [PATCH] Allow ip subdomain part to be prefixed with dash

This is useful so sub-sub-domains can make use of wildcard certificate
e.g. myapp-myenvironment-10-9-8-7.mydomain.com
---
 src/nip.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nip.py b/src/nip.py
index 247cfe5..819a1bd 100755
--- a/src/nip.py
+++ b/src/nip.py
@@ -146,7 +146,7 @@ class DynamicBackend:
 
     def handle_subdomains(self, qname):
         subdomain = qname[0:qname.find(self.domain) - 1]
-        match = re.findall('^(?:.+\.)?(\d{1,3}[-.]\d{1,3}[-.]\d{1,3}[-.]\d{1,3})$', subdomain)
+        match = re.findall('^(?:.+[-.])?(\d{1,3}[-.]\d{1,3}[-.]\d{1,3}[-.]\d{1,3})$', subdomain)
 
         if not match:
             if DEBUG: