[TIL] Passport (Local)

설치

npm install passport passport-local

사용 방법

1) 미들웨어에 쿠키 세션 등록

import passport from "passport";
app.use(
  cookieSession({
    name: "cookie-session-name",
    keys: "supersecret",
  })
);
app.use(function (request, response, next) {
  if (request.session && !request.session.regenerate) {
    request.session.regenerate = (cb) => {
      cb();
    };
  }
  if (request.session && !request.session.save) {
    request.session.save = (cb) => {
      cb();
    };
  }
  next();
});

2) 로그인 라우터 구성

app.post("/login", (req, res, next) => {
  passport.authenticate("local", (err, user, info) => {
    if (err) return next(err);
    if (!user) {
      console.log("no user");
      return res.json({ msg: info });
    }

    req.logIn(user, function (err) {
      if (err) return next(err);
      res.redirect("/");
    });
  })(req, res, next);
});

3) 로그인 전략 생성

import passport from "passport";
import { Strategy as LocalStrategy } from "passport-local";
import { prisma } from "../utils/prisma/index.js";
import "dotenv/config";

// req.login(user)
passport.serializeUser((user, done) => {
  done(null, user.id);
});
// client => session => request
passport.deserializeUser((id, done) => {
  prisma.users.findUnique({ where: { id: +id } }).then((user) => {
    done(null, user);
  });
});

const LocalStrategyConfig = new LocalStrategy({ usernameField: "email", passwordField: "password" }, async (email, password, done) => {
  const user = await prisma.users
    .findUnique({
      where: { email: email },
    })
    .toJson();
  if (!user) {
    return done(null, false, { msg: `Email ${email} not found` });
  }
  const comparePW = user.password === password;
  if (!comparePW) {
    return done(null, false, { msg: `password not correct` });
  }

  return done(null, user);
});

passport.use("local", LocalStrategyConfig);