前言：我是node.js，express，socket.io以及所有这些的新手。我意识到我的代码有点混乱，需要分成模块等 - 但我还没有这样做，因为我试图让认证部分先工作。我搜索了遍布stackoverflow和其他网站。我找到了一些很有希望的例子，但我还是没能让它发挥作用。
我按照几个教程创建了我的快速应用程序，允许用户注册，登录和查看其详细信息。我还遵循了一个教程，帮助我做了一个基本的socket.io聊天。我想要做的是组合它们并让用户登录然后重定向到聊天应用程序。我遇到的问题是，当我重定向它们时，我无法知道socket.io方面的“他们是谁”。目前我已经设置好了，所以你必须输入你的名字才能聊天 - 我希望它从会话中获取信息并使用它。
目前，当用户登录时，它会设置一个cookie（我可以在控制台中查看它）。所以我知道cookie就在那里。它还将信息设置为MongoStore。我已经通过db.collection.find（）验证了这一点。
这是我到目前为止的代码。如果有任何专家可以帮我找到一种方法将会话信息传递给socket.io，我将非常感谢！
var mongo = require('mongodb').MongoClient;
var bodyParser = require('body-parser');
var bcrypt = require('bcryptjs');
var csrf = require('csurf');
var path = require ('path');
var express = require('express');
var mongoose = require('mongoose');
var uniqueValidator = require('mongoose-unique-validator');
var session = require('express-session');
var moment = require('moment');
var now = moment().format('L');
var http = require('http');
var MongoStore = require('connect-mongo')(session);
var Schema = mongoose.Schema;
var ObjectId = Schema.ObjectId;
UserSchema = new Schema({
//id: ObjectId,
firstName: String,
lastName: String,
username: {
type: String,
unique: true,
uniqueCaseInsensitive:true
},
password: String,
email: {
type:String,
unique: true,
uniqueCaseInsensitive:true
},
accountType: String,
accountStatus: String,
acctActivation:{
type:String,
unique:true
},
joinDate: String
});
UserSchema.plugin(uniqueValidator,{ message: 'Error, {PATH} {VALUE} has already been registered.\r' });
var User = mongoose.model('User', UserSchema);
var app = express();
app.engine('ejs', require('ejs').renderFile);
app.locals.pretty = true;
//connect to mongo
mongoose.connect('mongodb://localhost/myUserDb');
//create server
var server = http.createServer(app).listen(3000);
var client = require('socket.io')(server);
console.log('listening on port 3000');
//middleware
app.use(express.static('public'));
app.use(bodyParser.urlencoded({extended:true}));
app.use(session({
secret: 'mysecret!',
resave:false,
saveUninitialized: false,
stringify:true,
store: new MongoStore({
url: 'mongodb://127.0.0.1/sid2'
})
}));
app.use(csrf());
app.use(function(req,res,next){ // check to see if user already has a session, if so, query mongodb and update the user object
if(req.session && req.session.user){
User.findOne({email: req.session.user.email}, function(err, user){
if(user){
req.user = user;
delete req.user.password; // remove password field from session
req.session.user = req.user;
res.locals.user = req.user;
}
next();
});
}else{
next();
}
});
function requireLogin(req,res,next){ // check to see if user is logged in, if not, boot em
if(!req.user){
res.redirect('/login');
}else{
next();
}
};
function requireAdmin(req,res,next){ // check to see if accountType = Developer (or admin later) - if not, send them to dashboard
if(req.user.accountType !== 'Developer'){
res.redirect('/dashboard');
}else{
next();
}
};
app.get('/', function(req, res){
if(req.user){
res.render('dashboard.ejs');
}else{
res.render('index.ejs');
}
});
app.get('/register', function(req,res){
res.render('register.ejs', {csrfToken: req.csrfToken(),
error:false});
});
app.post('/register', function(req,res){
var hash = bcrypt.hashSync(req.body.password, bcrypt.genSaltSync(10));
var user = new User({
firstName: req.body.firstName,
lastName: req.body.lastName,
username: req.body.username,
password: hash,
email: req.body.email,
accountType: 'Standard',
accountStatus: 'Active',
joinDate: now
});
user.save(function(err){
if(err){
console.log(err);
res.render('register.ejs', {csrfToken: req.csrfToken(),
error: err});
}else{
req.session.user = user;
res.redirect('/dashboard');
}
});
});
app.get('/login', function(req,res){
res.render('login.ejs', {
csrfToken: req.csrfToken(),error:false});
});
app.post('/login', function(req, res){
User.findOne({username: {$regex: new RegExp('^' + req.body.username, 'i')}}, function(err, user){
if(!user){
res.render('login.ejs', {error: 'Invalid username or password combination.',
csrfToken: req.csrfToken()});
}else{
if(bcrypt.compareSync(req.body.password, user.password)){
req.session.user = user;
res.redirect('/chat');
}else{
res.render('login.ejs', {error: 'Invalid username or password combination.',
csrfToken: req.csrfToken()});
}
}
});
});
app.get('/dashboard', requireLogin, function(req,res){
res.render('dashboard.ejs');
});
app.get('/chat', requireLogin, function(req,res){
res.render('chat.ejs');
});
app.get('/admin', requireLogin, requireAdmin, function(req,res){ //required logged in AND admin status
// var userlist = User.find({});
User.find({},{},function(err,docs){
res.render('admin.ejs',{ "userlist": docs
});
}) ;
// res.render('admin.ejs');
});
app.get('/logout', function(req,res){
req.session.reset();
res.redirect('/');
});
mongo.connect('mongodb://127.0.0.1/chat', function(err,db){
if(err) throw err;
client.on('connection', function(socket){
var col = db.collection('messages');
sendStatus = function(s){
socket.emit('status', s);
};
//emit all messages (shows old room data)
col.find().limit(100).sort({_id: 1}).toArray(function(err, res){
if(err) throw err;
socket.emit('output',res);
});
//wait for input
socket.on('input', function(data){
var name = data.name,
message = data.message,
whitespacePattern = /^\s*$/;
if(whitespacePattern.test(name) || whitespacePattern.test(message)){
sendStatus('Name and message is required.');
}else{
col.insert({name: name, message: message}, function(){
//emit latest message to all clients
client.emit('output', [data]);
sendStatus({
message: "Message sent",
clear: true
});
});
}
});
});
});
答案 0 :(得分：0)
好的，所以我终于明白了。我使用快速会话来设置cookie，然后使用一个名为express-socket.io-session的模块将它传递给socket.io。
从那里，我能够使用：
var data = socket.handshake.session;
console.log(data.user.username);
检索我需要的值。所有这些天搜索，这是一个非常简单的解决方案。我想我只是需要一些睡眠！