javascript - 未知的身份验证策略 "local"

Question

我正在尝试对我网站上的用户进行身份验证，但出现此错误

Unknown authentication strategy 'local-login'

我试过更改策略的名称，我也阅读过 SO 中的其他线程，但没有找到解决方案。

// Passport
module.exports = function(passport) {
    passport.serializeUser(function(user, done) {
    done(null, user.id);
});

passport.deserializeUser(function(id, done) {
    connection.query('SELECT * FROM `users` WHERE `id` = ' + connection.escape(id), function(err, rows) {
        done(err, rows[0]);
    });
});

passport.use('local-login', new LocalStrategy({
    usernameField : 'username',
    passwordField : 'password'
},
function(req, username, password, done) {
    connection.query('SELECT * FROM `users` WHERE `username` = ' + connection.escape(username), function(err, rows) {
        if(err)
            return done(err);
        if(!rows.length) {
            return done(null, false, req.flash('loginMessage', 'Invalid username or password. Please try again.'));
        }
        if(!(rows[0].password == password))
            return done(null, false, req.flash('loginMessage', 'Invalid username or password. Please try again.'));

        return done(null, rows[0]);
    });
  }));
}

// Express Router
app.use(sessionMiddleware);
app.use(passport.initialize());
app.use(passport.session());
app.use(flash());
app.use('/static', express.static('./static'));

app.post('/login/auth', passport.authenticate('local-login', {
    successRedirect: '/dashboard',
    failureRedirect: '/',
    failureFlash: true
}));

Answer 1

首先检查你的安装:

npm install passport passport-local --save

然后像下面这样导入 Passport :

const passport = require('passport');
const LocalStrategy = require('passport-local').Strategy;

在您的app.use() 方法之前:

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

然后按如下方式使用。 (无需将“local-login”作为第一个参数)

passport.use(new LocalStrategy({
    usernameField : 'username',
    passwordField : 'password'
}, (req, username, password, done) => {
     // Your logic here...
       ...
       .. 
  }));
}

终于在您的路由器中:

app.post('/login/auth', passport.authenticate('local', { 
    successRedirect: '/dashboard', 
    failureRedirect: '/', 
    failureFlash: true }),
 function(req, res) {
    res.redirect('/');
 });

更多信息: passport-local