Passport反序列化每次请求两次调用

Question

当我在我的节点js +护照应用程序中打开任何url时，我有2个数据库请求（可能是deserialze方法调用）。

我的日志：

NEW QUERY____________________ 
SELECT * FROM users WHERE id=$1 
[ '1' ] 
GET/200 248ms - 829b 
NEW QUERY____________________ 
SELECT * FROM users WHERE id=$1 
[ '1' ] 
GET /stylesheets/style.css 404 3ms 

Deserializtation方法和中间件：

app.configure(function() { 
    // all environments 
    app.set('port', process.env.PORT || 3000); 
    app.set('views', path.join(__dirname, 'views')); 
    app.set('view engine', 'jade'); 
    app.use(express.static(path.join(__dirname, 'public'))); 
    app.use(express.favicon()); 
    app.use(express.logger('dev')); 
    app.use(express.cookieParser()); 
    app.use(express.json()); 
    app.use(express.urlencoded()); 
    app.use(express.methodOverride()); 
    app.use(express.session({ 
     secret: "thisismysecretkey", 
     store: new RedisStore({ host: 'localhost', port: 6379, client: redisClient }) 
    })); 
    app.use(passport.initialize()); 
    app.use(passport.session()); 
    app.use(app.router); 
}); 



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

passport.deserializeUser(function(id, done){ 
    user.get(id, function(err, user){ 
     done(err, user); 
    }); 
}); 

看起来这issue但它不是为我工作。与护照

我有工作认证的js它看起来有点害怕：

exports.authenticate = function (req, res) { 
var form = new multiparty.Form(); 

form.parse(req, function(err, fields) { 
    var userEmail = fields.email[0]; 
    var userPassword = fields.password[0]; 
    if (err) throw err; 
    userProvider.isBlockedEmail(userEmail, function(err, blocked) { 
     if (err) throw err; 
     if (blocked) { 
      res.send({error: true, description: 'you did too much attempts'}); 
     } else { 
      userProvider.authenticate(userEmail, userPassword, function (err, user) { 
       if (err) throw err; 
       else if (user === undefined) res.send({error: true, description: 'wrong login or password'}); 
       else if (user) { 
        req.login(user, function (err) { 
         if (err) throw err; 
         else if (user.banned === true) res.send({error: true, description: 'access denied'}); 
         else { 
          userProvider.resetAttemptsCounter(userEmail, function(err) { 
           if (err) throw err; 
           res.send(req.user); 
          }); 
         } 
        }); 
       } else { 
        userProvider.checkAndBlock(userEmail, function(err, isBlocked, descriptions) { 
         if (err) throw err; 
         if (isBlocked) { 
          res.send({error: true, description: descriptions}); 
         } else { 
          userProvider.increaseAttemptsCounter(userEmail, function(err) { 
           if (err) throw err; 
           res.send({error: true, description: 'wrong login or password'}); 
          }); 
         } 
        }); 
       } 
      }); 
     } 
    }); 
}); 

};

请帮我避免这种开销。

Answer 1

我认为这是一个类似的问题：

app.use(passport.initialize()); 
app.use(passport.session()); 
app.use(express.favicon()); <---- !! 
app.use(app.router); 

这意味着护照中间件将被调用为每个请求/favicon.ico（这是几乎每一页）。

你应该重新整理它，以便express.favicon被称为之前护照中间件：

app.use(express.favicon()); 
app.use(passport.initialize()); 
app.use(passport.session()); 
app.use(app.router);