From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Mon, 24 Feb 2020 09:48:43 +0000 (+0000)
Subject: [Minor] Explicitly convert things to strings
X-Git-Tag: 2.4~23
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9def8135c34d06a01839e1cfbbe970438c76ddce;p=thirdparty%2Frspamd.git

[Minor] Explicitly convert things to strings

Issue: #3272
---

diff --git a/src/plugins/lua/dmarc.lua b/src/plugins/lua/dmarc.lua
index ea5407fc31..4a68026c24 100644
--- a/src/plugins/lua/dmarc.lua
+++ b/src/plugins/lua/dmarc.lua
@@ -127,8 +127,18 @@ end
 
 local xml_grammar = gen_xml_grammar()
 
-local function escape_xml(goo)
-  return xml_grammar:match(goo)
+local function escape_xml(input)
+  if type(input) == 'string' or type(input) == 'userdata' then
+    return xml_grammar:match(input)
+  else
+    input = tostring(input)
+
+    if input then
+      return xml_grammar:match(input)
+    end
+  end
+
+  return ''
 end
 
 -- Default port for redis upstreams