File

mod_strict_https/mod_strict_https.lua @ 5519:83ebfc367169

mod_http_oauth2: Return Authentication Time per OpenID Core Section 2 Mandatory To Implement, either MUST include or OPTIONAL depending on things we don't look at, so might as well include it all the time. Since we do not persist authentication state with cookies or such, the authentication time will always be some point between the user being sent to the authorization endpoint and the time they are sent back to the client application.
author Kim Alvefur <zash@zash.se>
date Mon, 05 Jun 2023 22:32:44 +0200
parent 5415:f8797e3284ff
line wrap: on
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-- HTTP Strict Transport Security
-- https://www.rfc-editor.org/info/rfc6797

module:set_global();

local http_server = require "net.http.server";

local hsts_header = module:get_option_string("hsts_header", "max-age=31556952"); -- This means "Don't even try to access without HTTPS for a year"
local redirect = module:get_option_boolean("hsts_redirect", true);

module:wrap_object_event(http_server._events, false, function(handlers, event_name, event_data)
	local request, response = event_data.request, event_data.response;
	if request and response then
		if request.secure then
			response.headers.strict_transport_security = hsts_header;
		elseif redirect then
			-- This won't get the port number right
			response.headers.location = "https://" .. request.host .. request.path .. (request.query and "?" .. request.query or "");
			return 301;
		end
	end
	return handlers(event_name, event_data);
end);