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我試圖將Express（3.x）與NowJS（主要是圍繞Socket.io的包裝）結合起來創建一個實時應用程序，首先要求您記錄我承認Node是新手，但是我對每個軟件包的工作方式都有很好的掌握。但是，從NowJS訪問快速會話信息會讓我覺得合適。通過XHR輪詢的Socket.io未通過Cookie
問題似乎是因爲我被迫使用XHR-Polling（使用Heroku作爲主機平臺），我無法輕鬆訪問Socket.io身份驗證方法中的cookie信息。在authFunction的以下代碼中，「data.headers.cookie」未定義。以迂迴的方式（在Now.js代碼中），這會在nowjs.on（「connect」，...）回調中留下「this.user.cookie」爲空（但不是未定義）。這反過來讓我無法獲取會話信息。
從閱讀來看，似乎只有使用websocket纔可以使用cookie。沒有cookie，我不知道哪個用戶正在調用服務器，除了爲它們生成的隨機標識符。
任何人都可以提出如何解決這個問題嗎？在建立與Now.js服務器的連接後，是否需要手動從客戶端發送cookie？
var app = express();
app.configure(function(){
app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.engine('html', consolidate.swig);
app.set('view engine', 'html');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(express.cookieParser());
app.use(express.session({ secret: "secrethere" , store: sessionStore}));
app.use(express.static(path.join(__dirname, 'public')));
app.use(app.router);
});
app.configure('development', function(){
app.use(express.errorHandler({dumpExceptions: true, showStack: true}));
});
//Map the routes
var routes = require('./routes/routes')(db);
app.get[...] //routes defined here
var server = http.createServer(app, {cookieKey: 'connect.sid'});
server.listen(app.get('port'), function(){
console.log("Express server listening on port " + app.get('port'));
});
var parseCookie = require('express/node_modules/connect').utils.parseCookie;
var authFunction = function (data, accept) {
// check if there's a cookie header
if (data.headers.cookie) {
// if there is, parse the cookie
data.cookie = parseCookie(data.headers.cookie);
// note that you will need to use the same key to grad the
// session id, as you specified in the Express setup.
data.sessionID = data.cookie['connect.sid'];
} else {
// if there isn't, turn down the connection with a message
// and leave the function.
return accept('No cookie transmitted.', false);
}
// accept the incoming connection
accept(null, true);
};
var everyone = nowjs.initialize(server, {socketio: {transports: ['xhr-polling', 'jsonp-polling'], authorization: authFunction}});
nowjs.on('connect', function (socket) {
//TODO - This will need to be based on the URL that is being visited, or
//similar to establish that users are viewing the same thing
var sid = unescape(this.user.cookie["connect.sid"]); //# you DO have to unescape the session id!
sessionStore.get(sid, function(err, sess){
console.log("That group who joined? his userId is " + sess.userId)
});
var newRoom = "group";//this.user.session;//.groupName;
var newGroup = nowjs.getGroup(newRoom);
this.now.serverRoom = newRoom;
newGroup.addUser(this.user.clientId);
});
編輯：當然，我寧願喜歡這裏最多的回答簡單的解決方案：Session support in Now.js，但是，這並不爲我工作了（可能）同樣的原因 - 我的「cookie」是空的，不包含「connect.sid」鍵。