Using RedisStore in nodejs / expressjs - node.js

I'm trying get access to session data in express so I thought I would try declaring a connect-redis session store when configuring express. However, I cannot see why this doesn't work:
var express = require('express');
var http = require('http');
var RedisStore = require('connect-redis')(express);
var app = express();
app.set('port', process.env.PORT || 3000);
app.use(express.bodyParser());
app.use(express.cookieParser());
app.use(express.session({ secret: "keyboard cat", store: new RedisStore }));
//app.use(express.session({ secret: "keyboard cat" }));
app.use(app.router);
app.get('/', function(req, res){
console.log('/');
req.session.items = [ 'apple', 'orange' ];
res.end('items configured');
});
app.get('/items', function(req, res){
console.log('/items: ', req.session.items);
var s = JSON.stringify(req.session.items);
res.end('items: ' + s);
});
var server = http.createServer(app).listen(app.get('port'), function(){
console.log('Express server listening on port ' + app.get('port'));
});
The '/' route simply configures items with the session.
The '/items' route displays the list of items in the session.
It works using the standard expressjs session store.
It doesn't work using connect-redis (req.session is undefined)
I'm assuming the redis store will be instantiated and destroyed as the app loads/unloads (or do I need it running outside of node/express app?)
Any ideas?

req.session will be undefined if RedisStore can't connect to your Redis server. So it's either not running, or it's not running on the default location that RedisStore is looking for it (127.0.0.1:6379).
In case of the latter, you can configure the location using the options argument to the RedisStore constructor.

Give this a try.
var express = require('express');
var redis = require("redis");
var session = require('express-session');
var redisStore = require('connect-redis')(session);
var bodyParser = require('body-parser');
var client = redis.createClient();
var app = express();
app.set('views', __dirname + '/views');
app.engine('html', require('ejs').renderFile);
app.use(session({
secret: 'ssshhhhh',
// create new redis store.
store: new redisStore({ host: 'localhost', port: 6379, client: client,ttl : 260}),
saveUninitialized: false,
resave: false
}));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: true}));
app.get('/',function(req,res){
// create new session object.
if(req.session.key) {
// if email key is sent redirect.
res.redirect('/admin');
} else {
// else go to home page.
res.render('index.html');
}
});
app.post('/login',function(req,res){
// when user login set the key to redis.
req.session.key=req.body.email;
res.end('done');
});
app.get('/logout',function(req,res){
req.session.destroy(function(err){
if(err){
console.log(err);
} else {
res.redirect('/');
}
});
});
app.listen(3000,function(){
console.log("App Started on PORT 3000");
});
link : https://codeforgeek.com/2015/07/using-redis-to-handle-session-in-node-js/

You should invoke RedisStore constructor (with ())
app.use(express.session({ secret: "keyboard cat", store: new RedisStore()}));

Related

socket.io passport session undefinded

I want to use
req.user.id
inside
io.sockets.on('connection', module.exports = function(socket){}
so I tried to using this line
socket.request.client.user
like that on my
io.socket
io.sockets.on('connection', module.exports = function(socket,client,req){
connections.push(socket);
app.use(session({ secret: 'keyboard cat',resave: true, saveUninitialized:true})); // session secret
app.use(passport.initialize());
app.use(passport.session()); // persistent login sessions
console.log('connected: %s socket connected -session',socket.request.client.user ,connections.length);
but i get undefined on console
that's are my full code full code
var authController = require('./app/controllers/authcontroller.js');
var auth = require('./app/routes/auth.js');
var express = require('express')
var app = express()
var passport = require('passport')
var session = require('express-session')
var bodyParser = require('body-parser')
var env = require('dotenv').load()
var exphbs = require('express-handlebars')
app.use(session({secret: 'ssshhhhh'}));
app.use(passport.initialize())
app.use(passport.session())
var server = require('http').createServer(app);
var io = require('socket.io').listen(server);
var mysql = require('mysql');
var connection = mysql.createConnection({
host: 'localhost',
database: 'db_users',
user: 'root',
password: '',
});
users = [];
connections = [];
app.use('/cssFiles', express.static('/opt/lampp/htdocs/x/regtest/using-passport-with-sequelize-and-mysql-master/app/routes/assets'));
//For BodyParser
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
// For Passport
app.use(session({ secret: 'keyboard cat',resave: true, saveUninitialized:true})); // session secret
app.use(passport.initialize());
app.use(passport.session()); // persistent login sessions
//passport.authenticate('local-signin');
//For Handlebars
app.set('views', './app/views')
app.engine('hbs', exphbs({extname: '.hbs'}));
app.set('view engine', '.hbs');
app.get('/', function(req, res){
console.log('idddddd',req.sessionID);
res.send('Welcome to Passport with Sequelize');
});
//Models
var models = require("./app/models");
//Routes
var authRoute = require('./app/routes/auth.js')(app,passport);
//load passport strategies
require('./app/config/passport/passport.js')(passport,models.user);
//Sync Database
models.sequelize.sync().then(function(){
console.log('Nice! Database looks fine')
}).catch(function(err){
console.log(err,"Something went wrong with the Database Update!")
});
server.listen(process.env.PORT || 5000, function(err){
if(!err)
console.log("Site is live"); else console.log(err)
});
console.log('Server running...');
app.get('/', function(req, res){
res.sendFile('/opt/lampp/htdocs/x/regtest/using-passport-with-sequelize-and-mysql-master/app/routes/page.html');
});
//connection.connect();
io.sockets.on('connection', module.exports = function(socket,client,req){
//con
connections.push(socket);
//app.use(session);
app.use(session({ secret: 'keyboard cat',resave: true, saveUninitialized:true})); // session secret
app.use(passport.initialize());
app.use(passport.session()); // persistent login sessions
console.log('connected: %s socket connected session',socket.request.client.user ,connections.length);
req.user is only available in express middleware unfortunately. You'll have to use something like https://www.npmjs.com/package/passport.socketio if you want to access passports user info.
You will have to use some sort of persistent store as well such as redis or mongodb

I cannot send chat messages with socket.io

I could send messages before, but I shared passport's sessions with express and socket.io using redis by following this tutorial http://www.scotthasbrouck.com/blog/2016/3/18/passportjs-express-session-with-sockeio and now I can no longer send any chat messages.
Also, in my routes req.isAuthenticated() always returns false but I didn't have this problem before.
This is my server.js.
// server.js
// set up ======================================================================
// get all the tools we need
var express = require('express');
var app = express();
var server = require('http').Server(app);
var port = process.env.PORT || 8080;
var mongoose = require('mongoose');
var passport = require('passport');
var flash = require('connect-flash');
var morgan = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var configDB = require('./config/database.js');
var http = require('http').Server(app);
var io = require('socket.io')(http);
var passportSocketIo = require('passport.socketio');
var session = require('express-session');
var chatdb = require('./app/models/chat.js');
var user = require('./app/models/user.js');
var redis = require('redis');
var client = redis.createClient();
var RedisStore = require('connect-redis')(session);
// configuration ===============================================================
mongoose.connect(configDB.url); // connect to our database
require('./config/passport')(passport); // pass passport for configuration
// set up our express application
app.use(morgan('dev')); // log every request to the console
app.use(cookieParser()); // read cookies (needed for auth)
app.use(bodyParser()); // get information from html forms
app.set('view engine', 'ejs'); // set up ejs for templating
var sessionStore = new RedisStore({ host: 'localhost', port: 6379, client: client, ttl: 260 });
// required for passport
app.use(session({
secret: 'secret',
store: sessionStore,
resave: true,
saveUninitialized: true,
cookie: {
secure: process.env.ENVIRONMENT !== 'development' && process.env.ENVIRONMENT !== 'test',
maxAge: 2419200000
},
}));
app.use(passport.initialize());
app.use(passport.session()); // persistent login sessions
app.use(flash()); // use connect-flash for flash messages stored in session
app.use(express.static(__dirname + '/views'));
app.use(express.static(__dirname + '/public'));
io.use(passportSocketIo.authorize({
key: 'connect.sid',
secret: 'secret',
store: sessionStore,
passport: passport,
cookieParser: cookieParser,
}));
var eventSocket = io.of('/chat');
// socket.io
io.on('connection', function (socket) {
console.log('a user connected');
socket.on('chat message', function(msg){
var name = "efe";
chatdb.saveMsg({name: name, msg: msg}, function(err){
if(err) throw err;
io.emit('chat message', msg);
});
if (socket.request.user && socket.request.user.logged_in) {
console.log(socket.request.user);
}
});
});
// routes ======================================================================
require('./app/routes.js')(app, passport); // load our routes and pass in our app and fully configured passport
// launch ======================================================================
http.listen(port);
console.log('The magic happens on port ' + port);
I had the same problem. I tried to implement passport.socketio like you but I solved my problem without it.
Here is my middleware :
// Express session middleware
var sessionMiddleware = session({ secret: 'secret-key', resave: true, saveUninitialized: true });
// Send Express sessionMiddleware through socket.io
io.use(function(socket, next){
// Params: request object, response object and callback.
sessionMiddleware(socket.request, {}, next);
});
The second parameter (response object) of sessionMiddleware function is empty. This will renders the session read-only.
And Here is how I use passport js session variable to get user informations :
io.on("connection", function(socket){
socket.on('chat message', function(msg){
var passport = socket.request.session.passport; // Get the passport variable
// Check if passport session exists
if (passport && typeof passport !== 'undefined'){
var userSession = passport.user; // Get the user session
// Build JSON with user session data
var message = {
message : msg,
name : userSession.name,
avatar : userSession.avatar
};
io.emit('chat message', message); // Emit my socket
}
});
});
Hope it help.
This was how i was able to solve it.
var express = require('express');
var app = express();
var server = require('http').Server(app);
var port = process.env.PORT || 8080;
var mongoose = require('mongoose');
var passport = require('passport');
var flash = require('connect-flash');
var morgan = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var session = require('express-session');
// Add connect-mongo to project - npm install connect-mongo
var MongoStore = require('connect-mongo')(session);
var configDB = require('./config/database.js');
var http = require('http').Server(app);
var io = require('socket.io')(http);
var chatdb = require('./app/models/chat.js');
// configuration ===============================================================
// NOTE: This might need to be put into a callback/promise inside an initialize function
var db = mongoose.connect(configDB.url); // connect to our database
require('./config/passport')(passport); // pass passport for configuration
// set up our express application
app.use(morgan('dev')); // log every request to the console
app.use(cookieParser()); // read cookies (needed for auth)
app.use(bodyParser()); // get information from html forms
app.set('view engine', 'ejs'); // set up ejs for templating
var mongoStore = new MongoStore({
mongooseConnection: db.connection,
});
app.use(session({
secret: 'secret',
clear_interval: 900,
cookie: { maxAge: 2 * 60 * 60 * 1000 },
store: mongoStore,
}));
// required for passport
app.use(session({ secret: 'secret' })); // session secret
app.use(passport.initialize());
app.use(passport.session()); // persistent login sessions
app.use(flash()); // use connect-flash for flash messages stored in session
app.use(express.static(__dirname + '/views'));
app.use(express.static(__dirname + '/public'));
// Intercept Socket.io's handshake request
io.use(function(socket, next) {
// Use the 'cookie-parser' module to parse the request cookies
cookieParser('secret')(socket.request, {}, function(err) {
// Get the session id from the request cookies
var sessionId = socket.request.signedCookies ? socket.request.signedCookies['connect.sid'] : undefined;
if (!sessionId) return next(new Error('sessionId was not found in socket.request'), false);
// Use the mongoStorage instance to get the Express session information
mongoStore.get(sessionId, function(err, session) {
if (err) return next(err, false);
if (!session) return next(new Error('session was not found for ' + sessionId), false);
// Set the Socket.io session information
socket.request.session = session;
// Use Passport to populate the user details
passport.initialize()(socket.request, {}, function() {
passport.session()(socket.request, {}, function() {
// This will prohibit non-authenticated users from connecting to your
// SocketIO server.
if (socket.request.user) {
next(null, true);
} else {
next(new Error('User is not authenticated'), false);
}
});
});
});
});
});
// socket.io
io.on('connection', function(socket) {
socket.on('chat message', function(msg) {
console.log(socket.request.user.facebook.name || socket.request.user.local.email);
var name = socket.request.user.facebook.name || socket.request.user.local.email;
chatdb.saveMsg({
name: name,
msg: msg
}, function(err) {
if (err) throw err;
io.emit('chat message', msg);
});
});
socket.on('disconnect', function() {
console.log('user disconnected');
});
});
// routes ======================================================================
require('./app/routes.js')(app, passport); // load our routes and pass in our app and fully configured passport
// launch ======================================================================
http.listen(port);
console.log('The magic happens on port ' + port);

Node.js saving session using Redis store

I am facing an issue with handling session using latest version of Express, Node.js.
My requirement is to store users email id in /login route, and need to get that email id thought out
all routes like /home. But email id is not printing in /home route with my current code. Your help is much appreciate.
My demo code is here
var express = require('express');
var app = express();
var cookieParser = require('cookie-parser');
var session = require('express-session');
var RedisStore = require('connect-redis')(session);
app.set('port',process.env.PORT || 3000);
app.use(cookieParser());
app.use(session({
resave: false,
saveUninitialized: false,
store: new RedisStore({
host: 'localhost',
port: 6379
}),
secret: 'some string/hash secret'
}));
var counter=0;
app.get('/login', function(request, response){
//adding some value to request.session
request.session.email = 'jak#amt.in';
console.log('sessionID', request.sessionID)
response.send('email: '+request.session.email);
});
app.get('/home', function (request, response) {
console.log('home login', request.session.email); // Email not priting here
console.log('sessionID - home', request.sessionID); // Session ID is showing
response.send('home');
});
if (!module.parent) {
console.info('Listening ', process.env.PORT || 5000);
app.listen(process.env.PORT || 5000);
}
module.exports = app;
I am getting following error
"ReplyError: ERR wrong number of arguments for 'set' command
at parseError (/home/dibeesh/obpnode6/testproject/node_modules/redis/node_modules/redis-parser/lib/parser.js:161:12)
at parseType (/home/dibeesh/obpnode6/testproject/node_modules/redis/node_modules/redis-parser/lib/parser.js:222:14)"
Make sure your redis server is running when you run your app.

MongoDB: Error setting TTL index on collection : sessions

Initially this error message started appearing very infrequently, but started to appear more regularly and now appears 4/5 times I run my application.
I'm handling my session store with Mongo and as I understand it, the TTL index is used to make the session data expire.
/home/dan/dev/audio-wave/node_modules/connect-mongo/lib/connect-mongo.js:161
throw new Error('Error setting TTL index on collection : ' + s
^
Error: Error setting TTL index on collection : sessions
at /home/dan/dev/audio-wave/node_modules/connect-mongo/lib/connect-mongo.js:161:23
at /home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1404:28
at /home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1542:30
at /home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:159:22
at commandHandler (/home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:678:48)
at Db._executeQueryCommand (/home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1802:12)
at Cursor.nextObject (/home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:729:13)
at Cursor.toArray (/home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:158:10)
at Cursor.toArray (/home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/scope.js:10:20)
at /home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1541:65
Here's the code that ties it together
var sessionStore = new MongoStore({ db: 'audio-drop' })
, cookieParser = express.cookieParser('waytoblue')
, SessionSockets = require('session.socket.io')
, sockets = new SessionSockets(io, sessionStore, cookieParser);
app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.set('view engine', 'ejs');
app.use(express.favicon());
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(express.static(path.join(__dirname, 'public')));
app.use(express.logger('dev'));
app.use(cookieParser);
app.use(express.session({
store: sessionStore
}));
According to db.version() from the Mongo shell, I'm running 2.4.9 and I'm using version 0.4.0 of connect-mongo.
There seem to be a number of people who've hit this issue, but it seems that most of them resolved to being credential issues, my local mongo is not secured with authentication, so this can't be the problem. Any ideas?
As I said in your comment, essentially Express is receiving connections before the session store is fully connected. The solution is to wait for the connection to occur before allowing your application to start listening.
You can avoid this problem by using a callback on MongoStore creation, or passing in an already active connection.
Example using connect-mongo's Callback
var sessionStore = new MongoStore({ url: 'someConnectionUrl', db: 'audio-drop' }, function(e) {
var cookieParser = express.cookieParser('waytoblue');
app.use(cookieParser);
app.use(express.session({
store: sessionStore
}));
app.listen();
});
Simple Mongoose Example
var mongoose = require('mongoose');
mongoose.connect('localhost', function(e) {
// If error connecting
if(e) throw e;
var sessionStore = new MongoStore({ mongoose_connection: mongoose.connection }),
cookieParser = express.cookieParser('waytoblue');
app.use(cookieParser);
app.use(express.session({
store: sessionStore
}));
app.listen();
});
Upgrade to connect-mongo version 0.8.0 which worked for me.
angular fullstack example
It´s just to encapsulate all the other stuff inside the mongoose.connect callback function
See my server/app.js
/**
* Main application file
*/
'use strict';
// Set default node environment to development
process.env.NODE_ENV = process.env.NODE_ENV || 'development';
var express = require('express');
var mongoose = require('mongoose');
var config = require('./config/environment');
// Connect to database
mongoose.connect(config.mongo.uri, config.mongo.options , function(e){
// Populate DB with sample data
if(config.seedDB) { require('./config/seed'); }
// Setup server
var app = express();
var server = require('http').createServer(app);
var socketio = require('socket.io')(server, {
serveClient: (config.env === 'production') ? false : true,
path: '/socket.io-client'
});
require('./config/socketio')(socketio);
require('./config/express')(app);
require('./routes')(app);
// Start server
server.listen(config.port, config.ip, function () {
console.log('Express server listening on %d, in %s mode', config.port, app.get('env'));
});
// Expose app
exports = module.exports = app;
});
Hope it helps!!

Using Redis as a session store in Node js and how to get values from it?

I used Redis to store session in my nodejs server. This is my code:
var express = require('express');
var http = require('http');
var connect = require("connect");
var path = require('path');
var RedisStore = require("connect-redis")(express);
var redis = require("redis").createClient();
var app = express();
app.set('port', 8888);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.cookieParser());
app.use(express.session({secret: 'blues',
cookie: { secure: true },
store: new RedisStore({
host: 'localhost',
port: 6379,
client: redis })
}));
app.use(express.static(path.join(__dirname, 'public')));
app.engine('html', require('ejs').renderFile);
app.get('/login', function(req,res){
res.render('login.html', {title: 'Login'});
});
var server = http.createServer(app).listen(app.get('port'), function(){
console.log('Express server listening on port ' + app.get('port'));
});
When I run the server, and access the url http://localhost:8888/login, then come back to check the Redis server, I found 3 sessions saved there, like this
127.0.0.1:6379> keys *
1) "sess:DGtMAO3pRPExzPjFS_B07bXP"
2) "sess:bzPTRrlXXe1DhzNze0JdZswt"
3) "sess:-RM8kkNtJ0jj3nhuYmiuw0f6"
What does it mean? Why 3 sessions (I had double-check with FLUSHDB command)?
EDIT: Ok I have some test and it turns out the other two sessions is from a css and a js file in login.html. But there are something I don't understand that when I press F5, 3 new session is stored in Redis. Why is that? Didn't session stay the same until it expire?
Another problem is, with above code how can I retrieve the session saved in Redis? I used this:
redis.get('"sess:' + req.session.id + '"', function(err, result){
console.log("Get session: " + util.inspect(result,{ showHidden: true, depth: null }));
});
it return null, although I can retrieve it with the same req.session.id in Redis server.
Please help me. Thank you!

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