class Async::HTTP::Protocol::HTTP1::Request

def self.read(connection)
	connection.read_request do |authority, method, target, version, headers, body|
		if method == ::Protocol::HTTP::Methods::CONNECT
			# We put the target into the authority field for CONNECT requests, as per HTTP/2 semantics.
			self.new(connection, nil, target, method, nil, version, headers, body)
		elsif valid_path?(target)
			# This is a valid request.
			self.new(connection, nil, authority, method, target, version, headers, body)
		elsif match = target.match(URI_PATTERN)
			# We map the incoming absolute URI target to the scheme, authority, and path fields of the request.
			self.new(connection, match[:scheme], match[:authority], method, match[:path], version, headers, body)
		else
			# This is an invalid request.
			raise ::Protocol::HTTP1::BadRequest.new("Invalid request target: #{target}")
		end
	end
end

def self.valid_path?(target)
	if target.start_with?("/")
		return true
	elsif target == "*"
		return true
	else
		return false
	end
end

def connection
	@connection
end

def hijack!
	@connection.hijack!
end

def hijack?
	true
end

def initialize(connection, scheme, authority, method, path, version, headers, body)
	@connection = connection
	
	# HTTP/1 requests with an upgrade header (which can contain zero or more values) are extracted into the protocol field of the request, and we expect a response to select one of those protocols with a status code of 101 Switching Protocols.
	protocol = headers.delete("upgrade")
	
	super(scheme, authority, method, path, version, headers, body, protocol, self.public_method(:write_interim_response))
end

def write_interim_response(status, headers = nil)
	@connection.write_interim_response(@version, status, headers)
end