From 94921293dbdbdf7fe49023fe7ed8908e05d3615f Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Tue, 7 Dec 2004 10:50:26 +0000
Subject: [PATCH] Added indifference to whether @headers["Content-Type"],
 @headers["Content-type"], or @headers["content-type"] is used. Added proper
 handling of HEAD requests, so that content isnt returned (Request#head? added
 as well) #277 [Eric Hodel]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@57 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 actionpack/CHANGELOG                            |  6 +++++-
 actionpack/lib/action_controller/cgi_process.rb | 13 +++++++++----
 actionpack/lib/action_controller/request.rb     |  4 ++++
 3 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/actionpack/CHANGELOG b/actionpack/CHANGELOG
index 6632cdeff15..4d39e25d539 100644
--- a/actionpack/CHANGELOG
+++ b/actionpack/CHANGELOG
@@ -1,7 +1,11 @@
 *SVN*
 
+* Added proper handling of HEAD requests, so that content isn't returned (Request#head? added as well) #277 [Eric Hodel]
+
+* Added indifference to whether @headers["Content-Type"], @headers["Content-type"], or @headers["content-type"] is used.
+
 * Added TestSession#session_id that returns an empty string to make it easier to functional test applications that doesn't use 
-  cookie-based sessions [jcf]
+  cookie-based sessions #275 [jcf]
 
 * Fixed that cached template loading would still check the file system to see if the file existed #258 [Andreas Schwarz]
 
diff --git a/actionpack/lib/action_controller/cgi_process.rb b/actionpack/lib/action_controller/cgi_process.rb
index 8610f608548..abc743246f0 100644
--- a/actionpack/lib/action_controller/cgi_process.rb
+++ b/actionpack/lib/action_controller/cgi_process.rb
@@ -107,7 +107,10 @@ module ActionController #:nodoc:
       $stdout.binmode if $stdout.respond_to?(:binmode)
       $stdout.sync = false
       print @cgi.header(@headers)
-      if @body.respond_to?(:call)
+
+      if @cgi.head?
+        return
+      elsif @body.respond_to?(:call)
         @body.call(self)
       else
         print @body
@@ -116,9 +119,11 @@ module ActionController #:nodoc:
 
     private
       def convert_content_type!(headers)
-        if headers["Content-Type"]
-          headers["type"] = headers["Content-Type"]
-          headers.delete "Content-Type"
+        %w( Content-Type Content-type content-type ).each do |ct|
+          if headers[ct]
+            headers["type"] = headers[ct]
+            headers.delete(ct)
+          end
         end
       end
   end
diff --git a/actionpack/lib/action_controller/request.rb b/actionpack/lib/action_controller/request.rb
index d58cf585434..9eb0b04ef01 100755
--- a/actionpack/lib/action_controller/request.rb
+++ b/actionpack/lib/action_controller/request.rb
@@ -26,6 +26,10 @@ module ActionController
       method == :delete
     end
 
+    def head?
+      method == :head
+    end
+
     # Determine originating IP address.  REMOTE_ADDR is the standard
     # but will fail if the user is behind a proxy.  HTTP_CLIENT_IP and/or
     # HTTP_X_FORWARDED_FOR are set by proxies so check for these before