vendor/rails/actionpack/lib/action_controller/vendor/rack-1.0/rack/content_type.rb

   1 require 'rack/utils'
   2
   3 module Rack
   4
   5   # Sets the Content-Type header on responses which don't have one.
   6   #
   7   # Builder Usage:
   8   #   use Rack::ContentType, "text/plain"
   9   #
  10   # When no content type argument is provided, "text/html" is assumed.
  11   class ContentType
  12     def initialize(app, content_type = "text/html")
  13       @app, @content_type = app, content_type
  14     end
  15
  16     def call(env)
  17       status, headers, body = @app.call(env)
  18       headers = Utils::HeaderHash.new(headers)
  19       headers['Content-Type'] ||= @content_type
  20       [status, headers.to_hash, body]
  21     end
  22   end
  23 end