From: Andrew Lewis <nerf@judo.za.org>
Date: Wed, 11 Mar 2015 12:35:22 +0000 (+0200)
Subject: Filter double-dots in rbl.lua validate_dns
X-Git-Tag: 0.9.0~517^2
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=refs%2Fpull%2F206%2Fhead;p=rspamd.git

Filter double-dots in rbl.lua validate_dns
---

diff --git a/src/plugins/lua/rbl.lua b/src/plugins/lua/rbl.lua
index 327bcb4b4..ce43e54a2 100644
--- a/src/plugins/lua/rbl.lua
+++ b/src/plugins/lua/rbl.lua
@@ -37,6 +37,9 @@ local rspamd_logger = require 'rspamd_logger'
 local rspamd_ip = require 'rspamd_ip'
 
 local function validate_dns(lstr)
+  if lstr:match('%.%.') then
+    return false
+  end
   for v in lstr:gmatch('[^%.]+') do
     if not v:match('^[%w-]+$') or v:len() > 63
       or v:match('^-') or v:match('-$') then