view mod_sasl_oauthbearer/mod_sasl_oauthbearer.lua @ 5255:001c8fdc91a4

mod_http_oauth2: Add support for the "openid" scope This "openid" scope is there to signal access to the userinfo endpoint, which is needed for OIDC support. We don't actually check this later because the userinfo endpoint only returns info embedded in the token itself, but in the future we may want to check this more carefully.
author Kim Alvefur <zash@zash.se>
date Thu, 16 Mar 2023 17:06:35 +0100
parents 73ada978dabc
children
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local s_match = string.match;
local registerMechanism = require "util.sasl".registerMechanism;
local saslprep = require "util.encodings".stringprep.saslprep;
local nodeprep = require "util.encodings".stringprep.nodeprep;
local log = require "util.logger".init("sasl");
local _ENV = nil;


local function oauthbearer(self, message)
	if not message then
		return "failure", "malformed-request";
	end

	local authorization, password = s_match(message, "^n,a=([^,]*),\1auth=Bearer ([^\1]+)");
	if not authorization then
		return "failure", "malformed-request";
	end

	local authentication = s_match(authorization, "(.-)@.*");

	-- SASLprep password and authentication
	authentication = saslprep(authentication);
	password = saslprep(password);

	if (not password) or (password == "") or (not authentication) or (authentication == "") then
		log("debug", "Username or password violates SASLprep.");
		return "failure", "malformed-request", "Invalid username or password.";
	end

	local _nodeprep = self.profile.nodeprep;
	if _nodeprep ~= false then
		authentication = (_nodeprep or nodeprep)(authentication);
		if not authentication or authentication == "" then
			return "failure", "malformed-request", "Invalid username or password."
		end
	end

	local correct, state = false, false;
    correct, state = self.profile.oauthbearer(self, authentication, password, self.realm);

	self.username = authentication
	if state == false then
		return "failure", "account-disabled";
	elseif state == nil or not correct then
		return "failure", "not-authorized", "Unable to authorize you with the authentication credentials you've sent.";
	end
	return "success";
end

registerMechanism("OAUTHBEARER", {"oauthbearer"}, oauthbearer);