[英]working chat example which use session to authenticate users socket.io express node.js
有沒有一個可行的示例來存儲會話並將該會話用於所有打開的窗口,以使一個用戶僅一次連接到一個房間?
該應用程序將以phpsessions作為node.js會話,但我無法找到如何讓一個人訪問一次該聊天應用程序的方法
//define what we need
var express = require('express'),
app = express(),
memcache = require("memcache"),
http = require('http'),
server = http.createServer(app),
io = require('socket.io').listen(server),
co = require("./cookie.js"),
php = require('phpjs'),
codein = require("node-codein");
// answer all request from users and send them back index.html for root access
app.get('/', function (req, res) {
res.sendfile(__dirname + '/index.html');
var cookieManager = new co.cookie(req.headers.cookie);
//using memcache as our session store
var client = new memcache.Client(11211, "localhost");
//connect to memcache client
client.connect();
//get our cookie sessions
user = client.get("sessions/"+cookieManager.get("sec_session_id"), function(error, result){
var session = JSON.parse(result);
//get just username from sessions(sessions store name and family and chat username in this case)
user = JSON.parse(session.name);
user = user.username;
//use this function to pass our chat username to our function
storeUsername(user);
});
});
function storeUsername(user){
// usernames which are currently connected to the chat
var usernames = {};
io.sockets.on('connection', function (socket) {
usernames[socket.id] = socket;
// when the client emits 'sendchat', this listens and executes
socket.on('sendchat', function (data) {
// we tell the client to execute 'updatechat' with 2 parameters
io.sockets.emit('updatechat', socket.username, data);
});
// when the client emits 'adduser', this listens and executes
socket.on('adduser', function(username){
// we store the username in the socket session for this client
socket.username = user;
// add the client's username to the global list
// echo to client they've connected
if(php.in_array(socket.username,usernames)){
delete usernames[socket.username];
}else{
usernames[user] = user;
console.log('not exist');
socket.emit('updatechat', 'SERVER', 'you have connected');
// echo globally (all clients) that a person has connected
socket.broadcast.emit('updatechat', 'SERVER', username + ' has connected');
// update the list of users in chat, client-side
io.sockets.emit('updateusers', usernames);
}
});
// when the user disconnects.. perform this
socket.on('disconnect', function(){
// remove the username from global usernames list
delete usernames[socket.username];
// update list of users in chat, client-side
io.sockets.emit('updateusers', usernames);
// echo globally that this client has left
socket.broadcast.emit('updatechat', 'SERVER', socket.username + ' has disconnected');
});
});
}
server.listen(3000);
一切正常,並且定義了發送數據的用戶,但是當我在另一個選項卡中訪問此站點時,我將再次連接到socket.io服務器
您的意思是在瀏覽器標簽之間共享一個websocket嗎?
但是,為什么需要共享套接字? 我為一個論壇開發了一個node.js聊天工具,我們不在乎用戶有多少個套接字。 我們只有一個具有套接字列表的“ User”對象。 我們不在乎套接字是否來自Firefox,Android應用...這不是問題。 當我們需要向用戶發送信息時,我們會將其發送到每個套接字。
你可以試試看 它使用express和socket.io https://github.com/gravityonmars/Balloons.IO
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