Passport.js:认证后如何访问用户对象? [英] Passport.js: how to access user object after authentication?

问题描述

我正在使用Passport.js用用户名和密码登录用户.我实质上是使用Passport网站上的示例代码.这是我代码的相关部分(我认为):

I'm using Passport.js to login a user with username and password. I'm essentially using the sample code from the Passport site. Here are the relevant parts (I think) of my code:

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

passport.serializeUser(function(user, done) {
    done(null, user);
});

passport.deserializeUser(function(obj, done) {
    done(null, obj);
});

passport.use(new LocalStrategy(function(username, password, done) {
    User.findOne({ username: username }, function(err, user) {
        if (err) {
            return done(err);
        }
        if (!user) {
            return done(null, false, { message: 'Incorrect username.' });
        }
        if (!user.validPassword(password)) {
            return done(null, false, { message: 'Incorrect password.' });
        }
        return done(null, user);
        });
    }
));

app.post('/login',
    passport.authenticate('local', { failureRedirect: '/login/fail', failureFlash: false }),
    function(req, res) {
        // Successful login
        //console.log("Login successful.");
        // I CAN ACCESS req.user here
});

这似乎正确登录.但是，我希望能够在代码的其他部分访问登录用户的信息，例如:

This seems to login correctly. However, I would like to be able to access the login user's information in other parts of the code, such as:

app.get('/test', function(req, res){
    // How can I get the user's login info here?
    console.log(req.user);  // <------ this outputs undefined
});

我已经检查了关于SO的其他问题，但是我不确定在这里做错了什么.谢谢！

I have checked other questions on SO, but I'm not sure what I'm doing wrong here. Thank you!

推荐答案

您需要确保注册

You'll need to make sure that you register a middleware that populates req.session before registering the passport middlewares.

例如，以下使用表达cookieSession中间件

app.configure(function() {

  // some code ...

  app.use(express.cookieParser());
  app.use(express.bodyParser());
  app.use(express.cookieSession()); // Express cookie session middleware 
  app.use(passport.initialize());   // passport initialize middleware
  app.use(passport.session());      // passport session middleware 

  // more code ...

});

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