我使用Passport.js在Express中创建了一个登录名。现在我已经完成了所有设置,当用户名和密码正确时,它将重定向到用户页面。但是现在我想在凭据不正确时显示一条消息。现在,它会显示一个空白页面,其中包含未经授权的
的自动消息这是我的passport.js设置:
App.js:
var mongoose = require('mongoose');
mongoose.Promise = global.Promise;
mongoose.connect('mongodb://localhost:27017/homeapp');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
app.use(require('express-session')({
secret: 'testtest',
resave: false,
saveUninitialized: false
}));
app.use(passport.initialize());
app.use(passport.session());
var User = require('./models/User');
passport.use(new LocalStrategy(User.authenticate()));
passport.serializeUser(User.serializeUser());
passport.deserializeUser(User.deserializeUser());
Index.js
var express = require('express');
var router = express.Router();
var auth = require('../controller/AuthController.js');
router.get('/', auth.home);
router.get('/login', auth.login);
router.post('/login', auth.doLogin);
router.get('/logout', auth.logout);
module.exports = router;
Users.js:
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var passportLocalMongoose = require('passport-local-mongoose');
var UserSchema = new Schema({
username: String,
password: String
}, {collection: 'userdata'});
UserSchema.plugin(passportLocalMongoose);
module.exports = mongoose.model('User', UserSchema);
AuthController.js:
var mongoose = require("mongoose");
var passport = require("passport");
var User = require("../models/User");
var userController = {};
userController.home = function(req, res) {
res.render('index', { user : req.user });
};
userController.login = function(req, res) {
res.render('login');
};
userController.doLogin = function(req, res){
passport.authenticate('local')(req, res, function(){
res.redirect('/');
});
};
userController.logout = function(req, res) {
req.logout();
res.redirect('/');
};
module.exports = userController;
答案 0 :(得分:2)
您可以在代码中进行修改,如下所示:
userController.doLogin = function(req, res){
passport.authenticate('local', { successRedirect: '/',
failureRedirect: '/login',
failureFlash: true })
passport.authenticate('local', { failureFlash: 'Invalid username or
password.' });
};
将failureFlash选项设置为true会指示Passport使用策略验证回调(如果有)提供的消息来刷新错误消息。这通常是最好的方法,因为验证回调可以最准确地确定身份验证失败的原因。
因为,我已经看到你正在使用护照自定义回调方法,你可以这样做:
userController.doLogin = function(req, res){
passport.authenticate('local', function(err, user) {
if (err) { return next(err); }
if (!user) { return res.json('invalid credentials'); }
req.logIn(user, function(err) {
if (err) { return next(err); }
return res.redirect('/');
});
})(req, res);
};