From 56f2b7348ec2ad9dcf8324ef888f7a45acaa7b99 Mon Sep 17 00:00:00 2001
From: Andrew Tomaka <atomaka@gmail.com>
Date: Thu, 3 May 2012 01:25:26 -0400
Subject: [PATCH] Add URL validation class.

---
 config/environment.rb |  3 +++
 lib/url_validator.rb  | 13 +++++++++++++
 2 files changed, 16 insertions(+)
 create mode 100644 lib/url_validator.rb

diff --git a/config/environment.rb b/config/environment.rb
index b58e7e1..b6522d0 100644
--- a/config/environment.rb
+++ b/config/environment.rb
@@ -3,3 +3,6 @@ require File.expand_path('../application', __FILE__)
 
 # Initialize the rails application
 WwwWhoisandrewCom::Application.initialize!
+
+# Include the URL validator
+require 'url_validator'
\ No newline at end of file
diff --git a/lib/url_validator.rb b/lib/url_validator.rb
new file mode 100644
index 0000000..61c48ef
--- /dev/null
+++ b/lib/url_validator.rb
@@ -0,0 +1,13 @@
+class UrlValidator < ActiveModel::EachValidator
+  def validate_each(record, attribute, value)
+    begin
+      uri = URI.parse(value)
+      resp = uri.kind_of?(URI::HTTP)
+    rescue URI::InvalidURIError
+      resp = false
+    end
+    unless resp == true
+      record.errors[attribute] << (options[:message] || "is not an url")
+    end
+  end
+end
\ No newline at end of file