From 01036d24ca7794ac7ad7be407798806f4eac54ce Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Tue, 23 Oct 2018 16:08:24 +0100
Subject: [PATCH] [Feature] Fold b= value when doing arc sealing

---
 src/plugins/lua/arc.lua | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/plugins/lua/arc.lua b/src/plugins/lua/arc.lua
index e066613e9..d5ee1b514 100644
--- a/src/plugins/lua/arc.lua
+++ b/src/plugins/lua/arc.lua
@@ -483,9 +483,15 @@ local function arc_sign_seal(task, params, header)
   sha_ctx:update(s)
   lua_util.debugm(N, task, 'initial update signature with header: %s', s)
 
+  local nl_type = 'crlf'
+  if task:has_flag("milter") then
+    nl_type = "lf"
+  else
+    nl_type = task:get_newlines_type()
+  end
   local sig = rspamd_rsa.sign_memory(privkey, sha_ctx:bin())
   cur_arc_seal = string.format('%s%s', cur_arc_seal,
-    sig:base64())
+    sig:base64(70, nl_type))
 
   task:set_milter_reply({
     add_headers = {
-- 
2.39.5