passport.initialize() 中间件未使用

Question

我在我的项目中使用节点、快递、猫鼬和护照，并且我在我的代码中实现了一个简单的登录功能，如下面的 app.js 所示，它运行良好。然后我尝试拆分我的代码，因为我想使用 MVC，这一次当我运行我的应用程序并尝试登录时，我得到了 passport.initialize() 中间件未使用错误。我已经尝试了其他帖子中其他用户建议的所有内容，但无济于事。有什么建议吗？

app.js - 可以使用的旧版本

const express = require('express');
const morgan = require('morgan');
const mongoose = require('mongoose');
const Donation = require('./models/Donation');
const User  = require('./models/User');
const donationRoutes = require('./routes/donationRoutes');
const registerRoutes = require('./routes/registerRoutes');

// express app
const app = express();

// connect to mongodb & listen for requests
const dbURI = "mongodb+srv://test:test@test.8npff.mongodb.net/test?retryWrites=true&w=majority";

mongoose.connect(dbURI, { useNewUrlParser: true, useUnifiedTopology: true })
  .then(result => app.listen(3000))
  .catch(err => console.log(err));

// register view engine
app.set('view engine', 'ejs');

// middleware & static files
app.use(express.static('public'));
app.use(express.urlencoded({ extended: true }));
app.use(morgan('dev'));
app.use((req, res, next) => {
  res.locals.path = req.path;
  next();
});

// express setup for login
const bodyParser = require('body-parser');
const expressSession = require('express-session')({
  secret: 'secret',
  resave: false,
  saveUninitialized: false
});

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(expressSession);

// passport setup for auth login
const passport = require('passport');

app.use(passport.initialize());
app.use(passport.session());

// passport local authentification
passport.use(User.createStrategy());

passport.serializeUser(User.serializeUser());
passport.deserializeUser(User.deserializeUser());

/* LOGIN ROUTES */

const connectEnsureLogin = require('connect-ensure-login');

app.post('/login', (req, res, next) => {
  passport.authenticate('local',
  (err, user, info) => {
    if (err) {
      return next(err);
    }

    if (!user) {
      return res.redirect('/login?info=' + info);
    }

    req.logIn(user, function(err) {
      if (err) {
        return next(err);
      }

      return res.redirect('/');
    });

  })(req, res, next);
});

app.get('/login',
  (req, res) => res.render('login', {title: 'login'})
);

app.get('/donations',
  connectEnsureLogin.ensureLoggedIn(),
  (req, res) =>  {
    Donation.find().sort({ createdAt: -1 })
      .then(result => {
        res.render('donations/index', { donations: result, title: 'All Donations' });
      })
      .catch(err => {
        console.log(err);
      });
  }
);

app.get('/user',
  connectEnsureLogin.ensureLoggedIn(),
  (req, res) => res.send({user: req.user})
);

app.get('/logout', function(req, res){
  req.logout();
  res.redirect('/');
});

//Register Routes
app.use('/', registerRoutes);

// *** routes ***
app.get('/', (req, res) => {
  res.redirect('/donations');
});

//donation routes
app.use('/donations', donationRoutes);

// 404 page
app.use((req, res) => {
  res.status(404).render('404', { title: '404' });
});

app.js - 新的

const express = require('express');
const morgan = require('morgan');
const mongoose = require('mongoose');
const donationRoutes = require('./routes/donationRoutes');
const registerRoutes = require('./routes/registerRoutes');
const loginRoutes = require('./routes/loginRoutes');

// express app
const app = express();

// connect to mongodb & listen for requests
const dbURI = "mongodb+srv://test:test@test.8npff.mongodb.net/test?retryWrites=true&w=majority";

mongoose.connect(dbURI, { useNewUrlParser: true, useUnifiedTopology: true })
  .then(result => app.listen(3000))
  .catch(err => console.log(err));

// register view engine
app.set('view engine', 'ejs');

// middleware & static files
app.use(express.static('public'));
app.use(express.urlencoded({ extended: true }));
app.use(morgan('dev'));
app.use((req, res, next) => {
  res.locals.path = req.path;
  next();
});

//Register Routes
app.use('/', registerRoutes);

//Login Routes
app.use('/', loginRoutes);

// *** routes ***
app.get('/', (req, res) => {
  res.redirect('/donations');
});

//donation routes
app.use('/donations', donationRoutes);

// 404 page
app.use((req, res) => {
  res.status(404).render('404', { title: '404' });
});

loginController.js

const connectEnsureLogin = require('connect-ensure-login');
const Donation = require('../models/Donation');
const express = require('express');
const User  = require('../models/User');
// express app
const app = express();
// express setup for login
const bodyParser = require('body-parser');
const expressSession = require('express-session')({
  secret: 'secret',
  resave: false,
  saveUninitialized: false
});

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(expressSession);

// passport setup for auth login
const passport = require('passport');

app.use(passport.initialize());
app.use(passport.session());

// passport local authentification
passport.use(User.createStrategy());

passport.serializeUser(User.serializeUser());
passport.deserializeUser(User.deserializeUser());

const login_post = (req, res, next) => {
  passport.authenticate('local',
  (err, user, info) => {
    if (err) {
      return next(err);
    }

    if (!user) {
      return res.redirect('/login?info=' + info);
    }

    req.logIn(user, function(err) {
      if (err) {
        return next(err);
      }

      return res.redirect('/');
    });

  })(req, res, next);
}

const login_get = (req, res) => {
  res.render('login', {title: 'login'});
}

const index_get = (req, res) => {
  connectEnsureLogin.ensureLoggedIn();
  Donation.find().sort({ createdAt: -1 })
  .then(result => {
    res.render('donations/index', { donations: result, title: 'All Donations' });
  })
  .catch(err => {
    console.log(err);
  });
}

const user_get = (req, res) => {
  connectEnsureLogin.ensureLoggedIn();
  res.send({user: req.user});
}

const logout_get = (req, res) => {
  req.logout();
  res.redirect('/')
}

module.exports = {
  login_post, 
  login_get, 
  index_get, 
  user_get,
  logout_get
}

loginRoutes.js

const express = require('express');
const loginController = require('../controllers/loginController');

const router = express.Router();

router.post('/login', loginController.login_post);
router.get('/login', loginController.login_get);
router.get('/donations', loginController.index_get);
router.get('/user', loginController.user_get);
router.get('/logout', loginController.logout_get);

module.exports = router;

这是错误日志：

Error: passport.initialize() middleware not in use
    at IncomingMessage.req.login.req.logIn (C:\Users\123\Documents\Datenbanken_Projekt\transparent_blood\node_modules\passport\lib\http\request.js:46:34)
    at C:\Users\123\Documents\Datenbanken_Projekt\transparent_blood\controllers\loginController.js:43:9
    at Strategy.strategy.success (C:\Users\123\Documents\Datenbanken_Projekt\transparent_blood\node_modules\passport\lib\middleware\authenticate.js:219:18)
    at verified (C:\Users\123\Documents\Datenbanken_Projekt\transparent_blood\node_modules\passport-local\lib\strategy.js:83:10)
    at C:\Users\123\Documents\Datenbanken_Projekt\transparent_blood\node_modules\passport-local-mongoose\index.js:205:41

Answer 1

这里有两个问题：

1. 您不止一次创建新的app。首先是app.js，然后是loginController.js。您应该只使用一个应用实例，否则它就像第二台服务器，您的中间件将无法正常工作。

2. 在您的示例中，您从不初始化护照（使用passport.initialize()）。在第一个示例（正在工作）中，护照初始化有很多行，包括策略和东西——// passport setup for auth login 之后的所有内容。然后他们走了。你需要把它们带回来；）