@maderaunified/musd-saml/config/passport.js

const SamlStrategy = require( 'passport-saml' ).Strategy;

const createConfig = ( config ) => {

	const { passport } = config;
	if ( !passport ) return {};

	const { saml } = passport;

	if ( typeof saml !== 'object' || config === null || saml === undefined ) {
		return {};
	}


	const cKeys = Object.keys( saml );

	return cKeys.reduce( ( obj, key ) => {

		const o = obj;

		o[key] = saml[key];
		return o;

	}, {} );

};

const defaultModel = ( profile, done ) => done( null, profile );

module.exports = ( passport, config, modelFunction ) => {

	passport.serializeUser( ( user, done ) => {
		done( null, user );
	} );

	passport.deserializeUser( ( user, done ) => {
		done( null, user );
	} );

	passport.use(
		new SamlStrategy(
			createConfig( config ),
			modelFunction || config.passport.callbackModel || defaultModel
		)
	);

};