Change validation for url: can include IPs

vendor/built_in_modules/web_resource/app/models/web_link.rb

@@ -27,7 +27,7 @@ class WebLink
   validates :title, :at_least_one => true
 
   before_validation :add_http
-  validates :url, :presence => true, :format => /^(http|https):\/\/[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(([0-9]{1,5})?\/.*)?$/ix
+  validates :url, :presence => true, :format => /^(http|https):\/\/(([a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5})|((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))(:[0-9]{1,5})?(\/.*)?/i
 
   def self.search( category_id = nil )