next/server/middleware/05.currentUser.ts

import jwt from "jsonwebtoken";
import { log } from "@server/logger";
import { messages } from "@server/constants";
import { User } from "@models/user";
import { AccessToken } from "@models/oauth";
import { IJwt } from "@server/types/authstuff";

export default defineEventHandler(async (event) => {
	let ahead = (getHeaders(event).authorization || "")?.replace("Bearer ", "");
	if (ahead) {
		let toktok: jwt.JwtPayload;
		try {
			toktok = jwt.verify(ahead, useRuntimeConfig().jwt) as IJwt;
			let user = await User.findById(toktok.id as number).exec();
			if (user && toktok) event.context.currentUser = user;
		} catch (e) {
			const t = await AccessToken.findOne({ token: ahead });
			if (!t)
				throw createError({
					statusCode: 401,
					message: messages[401],
				});
			let user = await User.findById(t.userID);
			if (user) event.context.currentUser = user;
		}
	}
});