class Protocol::Rack::Request

def self.[](env)
	env['protocol.http.request'] ||= new(env)
end

def self.headers(env)
	headers = ::Protocol::HTTP::Headers.new
	env.each do |key, value|
		if key.start_with?('HTTP_')
			next if key == 'HTTP_HOST'
			headers[key[5..-1].gsub('_', '-').downcase] = value
		end
	end
	return headers
end

def self.protocol(env)
	if protocols = env['rack.protocol']
		return Array(protocols)
	elsif protocols = env[CGI::HTTP_UPGRADE]
		return protocols.split(/\s*,\s*/)
	end
end

def initialize(env)
	@env = env
	super(
		@env['rack.url_scheme'],
		@env['HTTP_HOST'],
		@env['REQUEST_METHOD'],
		@env['PATH_INFO'],
		@env['SERVER_PROTOCOL'],
		self.class.headers(@env),
		Body::InputWrapper.new(@env['rack.input']),
		self.class.protocol(@env)
	)
end