From af9f5d0ecdd3591b3c7cb7c6624ce7dfdb7dfb71 Mon Sep 17 00:00:00 2001
From: Andre D <andre@andred.ca>
Date: Wed, 10 Aug 2011 15:26:05 -0700
Subject: [PATCH] Add basic validation of CSS gradients.

---
 r2/r2/lib/cssfilter.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/r2/r2/lib/cssfilter.py b/r2/r2/lib/cssfilter.py
index b7a238b56..d73bbff95 100644
--- a/r2/r2/lib/cssfilter.py
+++ b/r2/r2/lib/cssfilter.py
@@ -93,6 +93,9 @@ nonstandard_values = {
     # http://www.w3.org/TR/css3-background/#the-box-shadow
     # (This description doesn't support multiple shadows)
     'box-shadow': 'none|(?:({box-shadow-pos}\s+)?{color}|({color}\s+?){box-shadow-pos})',
+    
+    'background': r'^[a-z-]*-gradient\(.*\)',
+    'background-image': r'^[a-z-]*-gradient\(.*\)',
 }
 custom_values.update(nonstandard_values);