view mod_http_authentication/mod_http_authentication.lua @ 5513:0005d4201030

mod_http_oauth2: Reject duplicate form-urlencoded parameters Per RFC 6749 section 3.1 > Request and response parameters MUST NOT be included more than once. Thanks to OAuch for pointing out Also cleans up some of the icky behavior of formdecode(), like returning a string if no '=' is included.
author Kim Alvefur <zash@zash.se>
date Fri, 02 Jun 2023 11:03:57 +0200
parents 05725785e3a6
children
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module:set_global();

local b64_decode = require "util.encodings".base64.decode;
local server = require "net.http.server";

local credentials = module:get_option_string("http_credentials", "username:secretpassword");
local unauthed_endpoints = module:get_option_set("unauthenticated_http_endpoints", { "/http-bind", "/http-bind/" })._items;

module:wrap_object_event(server._events, false, function (handlers, event_name, event_data)
	local request = event_data.request;
	if event_name ~= "http-error" and request and not unauthed_endpoints[request.path] then
		local response = event_data.response;
		local headers = request.headers;
		if not headers.authorization then
			response.headers.www_authenticate = ("Basic realm=%q"):format(module.host.."/"..module.name);
			return 401;
		end
		local user_password = b64_decode(headers.authorization:match("%s(%S*)$"));
		if user_password ~= credentials then
			return 401;
		end
	end
	return handlers(event_name, event_data);
end);