require 'stringio'
require File.join(File.dirname(__FILE__), 'string_replacer')

module Jangle
  
  # A class for replacing strings in a request body
  class StringReplacingRequestBodyFilter
    include StringReplacer
      
    def filter(rack_request)
      data = rack_request.body.read
      data = do_replacements(data)
      rack_request.env['rack.input'] = StringIO.new(data)
      rack_request.env['CONTENT_LENGTH'] = data.length
    end
    
  end
end