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# if RUBY_VERSION.to_f >= 1.9
# # -*- encoding : utf-8 -*-
# # Make sure the logger supports encodings properly.
# module ActiveSupport
# class BufferedLogger
# def add(severity, message = nil, progname = nil, &block)
# return if @level > severity
# message = (message || (block && block.call) || progname).to_s
#
# # If a newline is necessary then create a new message ending with a newline.
# # Ensures that the original message is not mutated.
# message = "#{message}\n" unless message[-1] == ?\n
# buffer << message.force_encoding(Encoding.default_external)
# auto_flush
# message
# end
# end
# end
#
# # This makes it so all parameters get converted to UTF-8 before they hit your app. If someone sends invalid UTF-8 to your server, raise an exception.
# # At UserVoice, we rescue this exception and show a custom error page.
# class ActionController::InvalidByteSequenceErrorFromParams < Encoding::InvalidByteSequenceError; end
# class ActionController::Base
#
# def force_utf8_params
# traverse = lambda do |object, block|
# if object.kind_of?(Hash)
# object.each_value { |o| traverse.call(o, block) }
# elsif object.kind_of?(Array)
# object.each { |o| traverse.call(o, block) }
# else
# block.call(object)
# end
# object
# end
# force_encoding = lambda do |o|
# if o.respond_to?(:force_encoding)
# o.force_encoding(Encoding::UTF_8)
# raise ActionController::InvalidByteSequenceErrorFromParams unless o.valid_encoding?
# end
# if o.respond_to?(:original_filename)
# o.original_filename.force_encoding(Encoding::UTF_8)
# raise ActionController::InvalidByteSequenceErrorFromParams unless o.original_filename.valid_encoding?
# end
# end
# traverse.call(params, force_encoding)
# path_str = request.path.to_s
# if path_str.respond_to?(:force_encoding)
# path_str.force_encoding(Encoding::UTF_8)
# raise ActionController::InvalidByteSequenceErrorFromParams unless path_str.valid_encoding?
# end
# end
# before_filter :force_utf8_params
# end
#
#
# # Serialized columns in AR don't support UTF-8 well, so set the encoding on those as well.
# class ActiveRecord::Base
# def unserialize_attribute_with_utf8(attr_name)
# traverse = lambda do |object, block|
# if object.kind_of?(Hash)
# object.each_value { |o| traverse.call(o, block) }
# elsif object.kind_of?(Array)
# object.each { |o| traverse.call(o, block) }
# else
# block.call(object)
# end
# object
# end
# force_encoding = lambda do |o|
# o.force_encoding(Encoding::UTF_8) if o.respond_to?(:force_encoding)
# end
# value = unserialize_attribute_without_utf8(attr_name)
# traverse.call(value, force_encoding)
# end
# alias_method_chain :unserialize_attribute, :utf8
# end
#
# # Make sure the flash sets the encoding to UTF-8 as well.
# module ActionController
# module Flash
# class FlashHash
# def [](k)
# v = super
# v.is_a?(String) ? v.force_encoding("UTF-8") : v
# end
# end
# end
# end
# end
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