From: Andrew Lewis <nerf@judo.za.org>
Date: Thu, 4 May 2017 15:16:52 +0000 (+0200)
Subject: [Fix] DKIM Signing: avoid nil index when From header is missing
X-Git-Tag: 1.6.0~276
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a6748156cd9294783810305d195a6e1b93cc6d51;p=thirdparty%2Frspamd.git

[Fix] DKIM Signing: avoid nil index when From header is missing
---

diff --git a/src/plugins/lua/dkim_signing.lua b/src/plugins/lua/dkim_signing.lua
index 3d83c251ca..db0e65861d 100644
--- a/src/plugins/lua/dkim_signing.lua
+++ b/src/plugins/lua/dkim_signing.lua
@@ -83,7 +83,7 @@ local function dkim_signing_cb(task)
     return false
   end
   local hfrom = task:get_from('mime')
-  if not settings.allow_hdrfrom_multiple and hfrom[2] then
+  if not settings.allow_hdrfrom_multiple and (hfrom or E)[2] then
     rspamd_logger.debugm(N, task, 'multiple header from not allowed')
     return false
   end