Don't prepend the asset host if the string is already a fully-qualified URL

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2430 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Don't prepend the asset host if the string is already a fully-qualified URL
+
 * Updated to script.aculo.us V1.5.0_rc2 and Prototype to V1.4.0_pre7 [Thomas Fuchs]
 
 * Undo condition change made in [2345] to prevent normal parameters arriving as StringIO.

actionpack/lib/action_view/helpers/asset_tag_helper.rb

@@ -131,7 +131,8 @@ module ActionView
           source = "/#{dir}/#{source}" unless source.first == "/" || source.include?(":")
           source = "#{source}.#{ext}" unless source.include?(".")
           source = "#{@controller.request.relative_url_root}#{source}" unless %r{^[-a-z]+://} =~ source
-          ActionController::Base.asset_host + source
+          source = ActionController::Base.asset_host + source unless source.include?(":")
+          source
         end
     end
   end

actionpack/test/template/asset_tag_helper_test.rb

@@ -196,4 +196,14 @@ class AssetTagHelperNonVhostTest < Test::Unit::TestCase
     assert_nothing_raised { image_tag('') }
   end
   
+  def test_stylesheet_with_asset_host_already_encoded
+    ActionController::Base.asset_host = "http://foo.example.com"
+    result = stylesheet_link_tag("http://bar.example.com/stylesheets/style.css")
+    assert_dom_equal(
+      %(<link href="http://bar.example.com/stylesheets/style.css" media="screen" rel="Stylesheet" type="text/css" />),
+      result)
+  ensure
+    ActionController::Base.asset_host = ""
+  end
+  
 end