class Protocol::HTTP::AcceptEncoding

A middleware that sets the accept-encoding header and decodes the response according to the content-encoding header.

def call(request)

@returns [Protocol::HTTP::Response] The response.
@parameter request [Protocol::HTTP::Request] The request to modify.

Set the accept-encoding header and decode the response body. 
def call(request)
	request.headers[ACCEPT_ENCODING] = @accept_encoding
	
	response = super
	
	if body = response.body and !body.empty? and content_encoding = response.headers.delete(CONTENT_ENCODING)
		# We want to unwrap all encodings
		content_encoding.reverse_each do |name|
			if wrapper = @wrappers[name]
				body = wrapper.call(body)
			end
		end
		
		response.body = body
	end
	
	return response
end

def initialize(delegate, wrappers = DEFAULT_WRAPPERS)

@parameter wrappers [Hash] A hash of encoding names to wrapper functions.
@parameter delegate [Protocol::HTTP::Middleware] The delegate middleware.

Initialize the middleware with the given delegate and wrappers. 
def initialize(delegate, wrappers = DEFAULT_WRAPPERS)
	super(delegate)
	
	@accept_encoding = wrappers.keys.join(", ")
	@wrappers = wrappers
end