Provide a nicer way to access headers. request.headers["Content-Type"] instead of request.headers["HTTP_CONTENT_TYPE"] [Koz]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8625 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 31 insertions, 0 deletions

diff --git a/actionpack/lib/action_controller/headers.rb b/actionpack/lib/action_controller/headers.rb
new file mode 100644
index 0000000000..7239438c49
--- /dev/null
+++ b/actionpack/lib/action_controller/headers.rb
@@ -0,0 +1,31 @@
+module ActionController
+  module Http
+    class Headers < ::Hash
+      
+      def initialize(constructor = {})
+         if constructor.is_a?(Hash)
+           super()
+           update(constructor)
+         else
+           super(constructor)
+         end
+       end
+      
+      def [](header_name)
+        if include?(header_name)
+          super 
+        else
+          super(normalize_header(header_name))
+        end
+      end
+      
+      
+      private
+        # Takes an HTTP header name and returns it in the 
+        # format 
+        def normalize_header(header_name)
+          "HTTP_#{header_name.upcase.gsub(/-/, '_')}"
+        end
+    end
+  end
+end
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