password.js身份验证失败

Question

I'm trying to authenticate users using passportjs for the first time but I've been having trouble getting it to work. So this is the relevant code I'm working with

Index.js route file

var express = require('express');
var router = express.Router();
var passport = require('passport');
var bcrypt = require('bcryptjs');

router.post('/', passport.authenticate('local', {
    successRedirect: 'home',
    failureRedirect: '/'
}));

app.js

// Authentication packages
var session = require('express-session');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var MySQLStore = require('express-mysql-session')(session);
var bcrypt = require('bcryptjs');

passport.use(new LocalStrategy(function(email, password, done) {
    console.log(email);
    console.log(password);

    res.locals.connection.query('SELECT id, password FROM users WHERE email = ?', [email], function(err, user) {
        console.log(user);

        if (err) {return done(err)};

        if (user.length === 0) {
            done(null, false);
        };

        const hash = user[0].password.toString();
        console.log(hash);

        bcrypt.compare(password, hash, function(err, res) {
            if (res === true) {
                return done(null, {user_id: user[0].id});
            } else {
                return done(null, false);
            }
        });
    });
}
));

When i input a valid email address and password, I don't get redirected to the home like i want. Instead I'm redirected back to the login page. Same thing happens when i use an invalid email address. I also don't see the email and password even though I'm trying to console log it when i submit the login form.

Can anyone help me out here please.

Answer 1

I noticed you have email as the username. I had a similar problem and found that the solution was just to add usernameField to the strategy options:

new LocalStrategy({usernameField: 'email'}, function(email, password, done){...})

Answer 2

I think you may either need to place your passport.use in your route index.js file, or somehow pass the passport instance created in app.js as a parameter to index.js

Could you try that? It's possible that a new instance is created everytime you do require('passport')