swaf/src/components/SessionComponent.ts

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import ApplicationComponent from "../ApplicationComponent";
import session from "express-session";
import config from "config";
import RedisComponent from "./RedisComponent";
import flash from "connect-flash";
import {Router} from "express";
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export default class SessionComponent extends ApplicationComponent<void> {
private readonly storeComponent: RedisComponent;
public constructor(storeComponent: RedisComponent) {
super();
this.storeComponent = storeComponent;
}
public async init(router: Router): Promise<void> {
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router.use(session({
saveUninitialized: true,
secret: config.get('session.secret'),
store: this.storeComponent.getStore(),
resave: true,
cookie: {
httpOnly: true,
secure: config.get('session.cookie.secure'),
},
rolling: true,
}));
router.use(flash());
router.use((req, res, next) => {
if (!req.session) {
throw new Error('Session is unavailable.');
}
res.locals.session = req.session;
let _flash: any = {};
res.locals.flash = (key?: string) => {
if (key !== undefined) {
if (_flash[key] === undefined) _flash[key] = req.flash(key) || null;
return _flash[key];
}
if (_flash._messages === undefined) {
_flash._messages = {
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info: req.flash('info'),
success: req.flash('success'),
warning: req.flash('warning'),
error: req.flash('error'),
};
}
return _flash._messages;
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};
next();
});
}
}