我完成sessionStore MongoStore每次登录都正确执行，会话正在写入数据库而没有错误。我正在使用此程序包github.com/jfromaniello/passport.socketio将护照与套接字io对齐，但我已经查找了几个关于登录后如何处理sessionStorage的地方，因此它列出了名称在线和离线的用户，能否告诉我这个问题？
app.js
var express = require('express');
var mongoose = require('mongoose');
var path = require('path');
var bodyParser = require('body-parser');
var cookieParser = require('cookie-parser');
var session = require('express-session');
const MongoStore = require('connect-mongo')(session);
var flash = require('connect-flash');
var logger = require('morgan');
var passport = require('passport');
var passportSetup = require('./passport-setup');
// import routes
var routes = require('./routes');
// setup express app
var app = express();
app.use(logger());
// setup connection with mongodb
mongoose.connect( process.env.MONGODB_URI || "mongodb://smachs:***@d***.mlab.com:****/****-messenger",
(err, db)=> {
if (err) return new Error(err);
console.log(' Conexão estabelecida com banco de dados!');
});
// setup passport from different class
passportSetup();
// set view engine and connection of application
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
app.use(bodyParser.urlencoded({extended:false}));
app.use(cookieParser());
// session storage based in mongodb
var sessionStore = new MongoStore({
url: 'mongodb://smachs:***@d***.mlab.com:****/****-messenger',
ttl: 1 * 24 * 60 * 60, // = 1 days. Default
autoReconnect: true
})
// setup session based in express-session
app.use(session({
secret:"58585858585858",
key: "connect.sid",
resave: false,
saveUninitialized: false,
store: sessionStore
}));
app.use(flash());
// public directory
app.use(express.static(__dirname + '/public'));
// passport staff
app.use(passport.initialize());
app.use(passport.session());
// start routes
app.use(routes);
// start server
var port = process.env.PORT || 3000;
var server = app.listen(port, () => { console.log(' Servidor iniciado em localhost:', port); });;
// setup socket.io and passport.socketio packages
var io = require('socket.io').listen(server);
var passportSocketIo = require("passport.socketio");
// setup session found in express-session
io.use(passportSocketIo.authorize({
cookieParser: cookieParser, // the same middleware you registrer in express
key: 'connect.sid', // the name of the cookie where express/connect stores its session_id
secret: '58585858585858', // the session_secret to parse the cookie
store: sessionStore, // we NEED to use a sessionstore. no memorystore please
success: onAuthorizeSuccess, // *optional* callback on success - read more below
fail: onAuthorizeFail, // *optional* callback on fail/error - read more below
}));
// setup route just for clients authenticate
function ensureAutheticated(req, res, next) {
if (req.isAuthenticated()) next();
else {
req.flash("info", "Você precisa estar logado para visualizar essa página!");
res.redirect('/login');
}
}
// setup current online clients
var User = require('./models/user');
app.use((req, res, next) => {
res.locals.currentUser = req.user;
res.locals.errors = req.flash('error');
res.locals.infos = req.flash('info');
next();
});
// callback from passport.socketio
function onAuthorizeSuccess(data, accept) {
console.log(' Passport-Socket.IO conectado com sucesso');
io.on('connection', function (socket) {
console.log(" Socket.IO-Native conectado com sucesso");
});
// get current user online after authentication
io.on('connection', function (socket) {
// get user details of documents in database
app.get('/user-online', ensureAutheticated, (req, res) => {
User.find()
.sort({ createdAd: 'descending' })
.exec((err, users) => {
if (err) return next(err);
// render response
res.send({
users: users
})
});
});
});
accept();
}
function onAuthorizeFail(data, message, error, accept) {
console.log('failed connection to socket.io:', data, message);
if (error)
accept(new Error(message));
}
user.js的
var mongoose = require('mongoose');
var bcrypt = require('bcrypt-nodejs');
const SALT_FACTOR = 10;
var userSchema = mongoose.Schema({
username: { type: String, required: true, unique: true },
password: { type: String, required: true },
createdAt: { type: Date, default: Date.now },
displayName: String,
bio: String
});
userSchema.methods.name = function() { return this.displayName || this.username;}
function noop() { };
userSchema.pre('save', function(done) {
var user = this;
console.log('USER: ' + JSON.stringify( user));
if (!( user.isModified('password'))) return done();
bcrypt.genSalt(SALT_FACTOR, function(err, salt) {
if (err) return done(err);
bcrypt.hash(user.password, salt, noop,
function (err, hashedPassword) {
if (err) return done(err);
user.password = hashedPassword;
done();
});
});
});
userSchema.methods.checkPassword = function(guess, done){
bcrypt.compare(guess, this.password, function(err, isMatch){
done(err,isMatch);
});
};
var User = mongoose.model('User', userSchema);
module.exports = User;
我在登录后尝试在集合中进行查询以列出我记录的用户，但仅限于1位用户并且没有选择更好地对待此结果，非常感谢他们给予我的帮助！
答案 0 :(得分：6)
您可以跟踪连接，断开连接，登录和注销事件，以创建在线用户列表。 您可以在RAM中管理在线用户，也可以使用redis。以下代码段可以帮助您实现目标 -
// Store userIds here
let onlineUsers = [];
io.on('connection', function (socket) {
socket.on('login', (userTokenOrId) => {
// store this to onlineUsers or redis
// Other stuff
});
socket.on('logout', (userTokenOrId) => {
// remove this from onlineUsers or redis
// Other stuff
});
socket.on('disconnect', (userTokenOrId) => {
// remove this from onlineUsers or redis
// Other stuff
});
});
为了更好地使用，您可以管理一个对象数组来存储userId和socketId的列表以及一个对象以将socketId映射到userId。通过这种方式，您可以跟踪一个用户在不同浏览器/系统上的在线状态。