umami/lib/middleware.ts

93 lines
2.3 KiB
TypeScript

import redis from '@umami/redis-client';
import cors from 'cors';
import debug from 'debug';
import { getAuthToken, parseShareToken } from 'lib/auth';
import { ROLES } from 'lib/constants';
import { secret } from 'lib/crypto';
import { isOverApiLimit, findSession, findWebsite, useSessionCache } from 'lib/session';
import {
badRequest,
createMiddleware,
parseSecureToken,
tooManyRequest,
unauthorized,
} from 'next-basics';
import { NextApiRequestCollect } from 'pages/api/collect';
import { validate } from 'uuid';
import { getUser } from '../queries';
import { getJsonBody } from './detect';
const log = debug('umami:middleware');
export const useCors = createMiddleware(cors());
export const useSession = createMiddleware(async (req: NextApiRequestCollect, res, next) => {
// Verify payload
const { payload } = getJsonBody(req);
const { website: websiteId } = payload;
if (!payload) {
log('useSession: No payload');
return badRequest(res);
}
// Get session from cache
let session = await useSessionCache(req);
// Get or create session
if (!session) {
const website = await findWebsite(websiteId);
if (!website) {
log('useSession: Website not found');
return badRequest(res);
}
if (process.env.ENABLE_COLLECT_LIMIT) {
if (isOverApiLimit(website)) {
return tooManyRequest(res, 'Collect currently exceeds monthly limit of 10000.');
}
}
session = await findSession(req, payload);
}
if (!session) {
log('useSession: Session not found');
return badRequest(res);
}
req.session = session;
next();
});
export const useAuth = createMiddleware(async (req, res, next) => {
const token = getAuthToken(req);
const payload = parseSecureToken(token, secret());
const shareToken = await parseShareToken(req);
let user = null;
const { userId, key } = payload || {};
if (validate(userId)) {
user = await getUser({ id: userId });
} else if (redis.enabled && key) {
user = await redis.get(key);
}
log({ token, payload, user, shareToken });
if (!user && !shareToken) {
log('useAuth: User not authorized');
return unauthorized(res);
}
if (user) {
user.isAdmin = user.role === ROLES.admin;
}
(req as any).auth = { user, token, shareToken, key };
next();
});