會話ID顯示爲未定義node.js

Question

js，express，redis（用於內存存儲）和socket.io。我正在嘗試設置通過身份驗證的套接字調用以便與每個用戶的套接字匹配。我有這樣的代碼，除了某些原因會話ID顯示爲未定義並獲取錯誤加載會話（握手錯誤）之外，大部分都會這樣做。

下面是代碼：

var io = require('socket.io'); 
var notificationsN = io.listen(server); 
var RedisStore = require('connect-redis')(express); 
var redis = require("redis").createClient(); 
var cookie = require('cookie'); 
var session_store = new RedisStore({client: redis}); 

app.use(express.session({ 
     secret: "secret", 
     store: new RedisStore({ host: 'localhost', port: 3000, client: redis }) 
    })); 
notificationsN.configure(function() { 
    notificationsN.set('authorization', function(data, accept) { 

    console.log('data below'); 
    console.log(data); 
    console.log('data sid below'); 
    console.log(data.sessionID); 
    if(!data.headers.cookie) return accept(new Error('No user cookie found'), true); 
     data.cookie = cookie.parse(data.headers.cookie, { secure: true }); 
     data.cookie = connect.utils.parseSignedCookies(data.cookie, config.session.secret); 
     data.cookie = connect.utils.parseJSONCookies(data.cookie); 
     data.sessionID = data.cookie[config.session.key]; 
     session_store.load(data.sessionID, function(err, session){ 
     if(err || !session) return accept(new Error('Error loading session'), false); 
     data.session = session; 
     return accept(null, true); 
     }); 
     console.log(data); 

    }) 
}) 


notificationsN.on('connection', function(socket) { 
socket.on('message', function(msg) { 
     console.log(msg); 
    }); 

    socket.on('disconnect', function() { 
     console.log('disconnecting from redis'); 

    }); 

    }); 

以下是我找回從console.log(data)：

{ headers: 
    { host: 'localhost:3000', 
    connection: 'keep-alive', 
    'cache-control': 'max-age=0', 
    'user-agent': 'Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTM 
L, like Gecko) Chrome/29.0.1547.57 Safari/537.36', 
    accept: '*/*', 
    referer: 'http://localhost:3000/userProfile', 
    'accept-encoding': 'gzip,deflate,sdch', 
    'accept-language': 'en-US,en;q=0.8', 
    cookie: 'connect.sid=crazyvalue; __atuvc=crazyvalue; userid=crazyvalue' }, 
    address: { address: 'ip', port: port}, 
    time: 'Fri Aug 30 2013 15:50:31 GMT-0400 (Eastern Daylight Time)', 
    query: { t: '1377892231624' }, 
    url: '/socket.io/1/?t=1377892231624', 
    xdomain: false, 
    secure: undefined, 
    issued: 1377892231630, 
    cookie: {}, 
    sessionID: undefined } 

所以不知道爲什麼，會話ID是不確定的和安全的節目爲未定義。

Answer 1

session_store.load 

是異步的。你需要將你的console.log移動到這個函數的回調中。

session_store.load(data.sessionID, function(err, session){ 
    if(err || !session) return accept(new Error('Error loading session'), false); 
    data.session = session; 
    console.log(data);//Move it here. 
    return accept(null, true); //This return statement is doing nothing useful 
});