Use pattern to get all methodspecs + reasonspecs, and return the value of the arc one if present

1 files changed, 12 insertions, 1 deletions

diff --git a/src/plugins/lua/arc.lua b/src/plugins/lua/arc.lua
index 1533655d5..98f9303fa 100644
--- a/src/plugins/lua/arc.lua
+++ b/src/plugins/lua/arc.lua
@@ -635,11 +635,22 @@ local function prepare_arc_selector(task, sel)
       end
     end
 
+    local function arc_result_from_ar(ar_header)
+      ar_header = ar_header or ""
+      for k, v in string.gmatch(ar_header, "(%w+)=(%w+)") do
+        if k == 'arc' then
+         return v
+        end
+      end
+      
+      return nil
+    end
+
     if settings.reuse_auth_results then
       local ar_header = task:get_header('Authentication-Results')
 
       if ar_header then
-        local arc_match = string.match(ar_header, '[; ]arc=(%w+)')
+        local arc_match = arc_result_from_ar(ar_header)
 
         if arc_match then
           if arc_match == 'none' or arc_match == 'pass' then