RocketChat/Rocket.Chat

import type { Awaited } from '@rocket.chat/core-typings';
import debounce from 'lodash.debounce';
import { RoutePolicy } from 'meteor/routepolicy';
import { WebApp } from 'meteor/webapp';

import { settings } from '../../app/settings/server/cached';
import { loginHandlerCAS } from '../lib/cas/loginHandler';
import { middlewareCAS } from '../lib/cas/middleware';
import { updateCasServices } from '../lib/cas/updateCasService';

export async function configureCAS() {
    const _updateCasServices = debounce(updateCasServices, 2000);

    settings.watchByRegex(/^CAS_.+/, async () => {
        await _updateCasServices();
    });

    RoutePolicy.declare('/_cas/', 'network');

    // Listen to incoming OAuth http requests
    WebApp.connectHandlers.use((req, res, next) => {
        middlewareCAS(req, res, next);
    });

    /*
     * Register a server-side login handler.
     * It is called after Accounts.callLoginMethod() is called from client.
     *
     */
    Accounts.registerLoginHandler('cas', (options) => {
        const promise = loginHandlerCAS(options);

        // Pretend the promise has been awaited so the types will match -
        // #TODO: Fix registerLoginHandler's type definitions (it accepts promises)
        return promise as unknown as Awaited<typeof promise>;
    });
}