# frozen_string_literal: true

# Released under the MIT License.
# Copyright, 2022-2024, by Samuel Williams.

module Protocol
	module Rack
		# Used for injecting the raw request in the the rack environment.
		PROTOCOL_HTTP_REQUEST = "protocol.http.request"
		
		# CGI keys <https://tools.ietf.org/html/rfc3875#section-4.1>:
		module CGI
			HTTP_HOST = 'HTTP_HOST'
			HTTP_UPGRADE = "HTTP_UPGRADE"
			PATH_INFO = 'PATH_INFO'
			REQUEST_METHOD = 'REQUEST_METHOD'
			REQUEST_PATH = 'REQUEST_PATH'
			REQUEST_URI = 'REQUEST_URI'
			SCRIPT_NAME = 'SCRIPT_NAME'
			QUERY_STRING = 'QUERY_STRING'
			SERVER_PROTOCOL = 'SERVER_PROTOCOL'
			SERVER_NAME = 'SERVER_NAME'
			SERVER_PORT = 'SERVER_PORT'
			REMOTE_ADDR = 'REMOTE_ADDR'
			CONTENT_TYPE = 'CONTENT_TYPE'
			CONTENT_LENGTH = 'CONTENT_LENGTH'
			
			HTTP_COOKIE = 'HTTP_COOKIE'
			
			# Header constants:
			HTTP_X_FORWARDED_PROTO = 'HTTP_X_FORWARDED_PROTO'
		end
		
		# Rack environment variables:
		RACK_ERRORS = 'rack.errors'
		RACK_LOGGER = 'rack.logger'
		RACK_INPUT = 'rack.input'
		RACK_URL_SCHEME = 'rack.url_scheme'
		RACK_PROTOCOL = 'rack.protocol'
		RACK_RESPONSE_FINISHED = 'rack.response_finished'
		
		# Rack hijack support:
		RACK_IS_HIJACK = 'rack.hijack?'
		RACK_HIJACK = 'rack.hijack'
	end
end