From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Tue, 29 Nov 2016 11:29:13 +0000 (+0000)
Subject: [Fix] Fix replacements to sanitize '%' character
X-Git-Tag: 1.4.1~11
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=19e9e19dfd461154f7d05d8a8bf00b4ff1a4d7e1;p=rspamd.git

[Fix] Fix replacements to sanitize '%' character
---

diff --git a/src/plugins/lua/spamassassin.lua b/src/plugins/lua/spamassassin.lua
index c2b3dd1d2..c71fe12eb 100644
--- a/src/plugins/lua/spamassassin.lua
+++ b/src/plugins/lua/spamassassin.lua
@@ -1101,8 +1101,9 @@ local function apply_replacements(str)
     local sstr
     sstr = s
     fun.each(function(n, t)
-        sstr = string.gsub(sstr, string.format("<%s>", n),
-          string.format("%s%s%s", pre, t, post))
+      local rep = string.format("%s%s%s", pre, t, post)
+      rep = string.gsub(rep, '%%', '%%%%')
+      sstr = string.gsub(sstr, string.format("<%s>", n), rep)
     end, replace['tags'])
 
     return sstr