From: Alexander Moisseev <moiseev@mezonplus.ru>
Date: Sat, 20 Feb 2016 07:34:34 +0000 (+0300)
Subject: Don't trigger HTML_SHORT_LINK_IMG on small images
X-Git-Tag: 1.2.0~200^2~1
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=af66bcae904101b46244bd16da1b9ed6533dccaf;p=rspamd.git

Don't trigger HTML_SHORT_LINK_IMG on small images

It's common for legitimate emails to have small image links (buttons, social networks junk e.t.c.)
---

diff --git a/rules/html.lua b/rules/html.lua
index 0f26d1421..47ff528e8 100644
--- a/rules/html.lua
+++ b/rules/html.lua
@@ -38,7 +38,10 @@ local function check_html_image(task, min, max)
               local parent = tag:get_parent()
               if parent then
                 if parent:get_type() == 'a' then
-                  return true
+                  -- do not trigger on small and unknown size images
+                  if i['height'] + i['width'] >= 210 then
+                    return true
+                  end
                 end
               end
             end