* Add rules for message's date

conf/lua/rspamd.lua

@@ -40,6 +40,34 @@ reconf['R_EMPTY_IMAGE'] = function (task)
 	return false
 end
 
+-- Date issues
+reconf['DATE_IN_FUTURE'] = function(task)
+	if rspamd_config:get_api_version() >= 5 then
+		local m = task:get_message()
+		local dm = m:get_date()
+		local dt = task:get_date()
+		-- An hour
+		if dm - dt > 3600 then
+			return true
+		end
+	end
+	
+	return false
+end
+reconf['DATE_IN_PAST'] = function(task)
+	if rspamd_config:get_api_version() >= 5 then
+		local m = task:get_message()
+		local dm = m:get_date()
+		local dt = task:get_date()
+		-- A day
+		if dt - dm > 86400 then
+			return true
+		end
+	end
+	
+	return false
+end
+
 
 local function file_exists(filename)
 	local file = io.open(filename)

rspamd.xml.sample

@@ -282,6 +282,10 @@
  <symbol weight="3.0" description="Invalid Postfix Received">INVALID_POSTFIX_RECEIVED</symbol>
  <symbol weight="5.0" description="Invalid Exim Received">INVALID_EXIM_RECEIVED</symbol>
  <symbol weight="3.0" description="Invalid Exim Received">INVALID_EXIM_RECEIVED2</symbol>
+
+ <!-- Date checks -->
+ <symbol weight="1.5" description="Message date is in future">DATE_IN_FUTURE</symbol>
+ <symbol weight="1.0" description="Message date is in past">DATE_IN_PAST</symbol>
 </metric>
 <!-- End of metrics section -->