如何在node.js服務器上的PHP Web服務器和Socket.io之間創建握手？

Question

我在服務器10.0.4.18上的端口8020上運行了node.js 4.0上的websocket。我使用socket.io v1.3，express和express-session實現了我的websocket。

項目定義

我需要能夠在socket.io中為從PHP應用程序連接到它的每個用戶創建一個會話。 在用戶發送第一個HTTP請求之后，我將使用將從PHP傳遞到socket.io以及HTTP請求的令牌對它們進行身份驗證。

用戶通過身份驗證后，我需要在socket.io會話中保存一些個人數據，以便以后重用。 每次用戶刷新PHP應用程序時，socket.io都需要知道已創建的會話數據。

問題

每次用戶重新加載/刷新PHP頁面“他/她從哪里連接”時，會話數據都會丟失。 服務器無法知道該連接屬於先前創建的會話XYZ。

我不確定如何在PHP和node.js之間創建握手，其中兩個服務器可以交換唯一數據以將socket.io會話綁定到。

仔細看看這個問題

我在瀏覽器中打開了這個鏈接https://10.0.4.18:8020/set/MikeA 。 “這根據路由代碼直接從node.js為我創建了一個會話”

然后我使用PHP連接到websocket，現在我可以看到會話沒有問題！ 我能夠在瀏覽器中打開多個選項卡，並且會按預期進行相同的會話。

它這次工作的原因是因為網址https://10.0.4.18:8020/set/MikeA建立了一個會話並將其綁定在我的瀏覽器和會話之間，從那里我能夠從socket讀取/寫入我的會話。我使用express-socket.io-session包https://www.npmjs.com/package/express-socket.io-session 。

但是如果我不手動使用url創建會話，則會話僅適用於一個頁面加載。 每次重新加載頁面時，會話都會被破壞，就像它從未存在過一樣！

題

當從socket.io連接時，我需要通過https://10.0.4.18:8020/set/MikeA連接到websocket時開發相同的行為。

如何在PHP服務器和socket.io之間建立握手，其中兩個服務器可以在每次重新加載PHP頁面或打開新的瀏覽器選項卡時將會話數據綁定到正確的用戶？

這是我的websocket代碼

var app = require('express')(),
    https = require('https'),
    fs = require('fs'),
    session = require('express-session'),
    sharedsession = require("express-socket.io-session"),
    fileStore = require('session-file-store')(session),
    base64url = require('base64url'),
    cookieParser = require("cookie-parser"),
    env = require('./modules/config');


var server = https.createServer(
    {
        key: fs.readFileSync('certs/key.pem'),
        cert: fs.readFileSync('certs/cert.pem')
    }, app).listen(env.socket.port, env.socket.host, function () {
    console.log('\033[2J');
    console.log('Websocket is running at https://%s:%s', server.address().address, server.address().port);
});

var io = require('socket.io')(server);

var icwsReq = require('./modules/icws/request.js'),
    icwsConn = require('./modules/icws/connection.js'),
    icwsInter = require('./modules/icws/interactions.js'),
    sessionValidator = require('./modules/validator.js');

var icwsRequest = new icwsReq();
var sessionChecker = new sessionValidator();

var sessionStoreFile = new fileStore({path: './tmp/sessions'});

var clients = {};

var sessionOptions = {
        store: sessionStoreFile,
        secret: env.session.secret,
        name: env.session.name,
        rolling: true,
        saveUninitialized: false,
        resave: true,
        unset: 'keep',
        cookie: {
            maxAge: 60 * 60 * 1000
        }
    };

var sessionMiddleware = session(sessionOptions);

app.use(sessionMiddleware); // session support for the app


//Set access control headers on every express route.
app.use(function (req, res, next){
    res.setHeader('Access-Control-Allow-Origin', '*');
    res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With, Content-Type');
    next();
});


// Use shared session middleware for socket.io
io.use(sharedsession(sessionMiddleware, {
    autoSave: true
})); 

//Middleware for authorizing a user before establishing a connection
io.use(function(socket, next) {

    var myIP = socket.request.socket.remoteAddress || '';
    var token = socket.handshake.query.tokenId || '';
    var session = socket.handshake.session || {};

    if(!session && !token){
        console.log('Log: No session and no token!');
        return next(new Error('No tken/session found'));
    }

    if(!token){
        console.log('Log: token was not found');
        return next(new Error('Token not found'));
    }

    //SessionID should be defined on a page reload
    console.log('IP Address: ' + myIP + '      SessionID: ' + socket.handshake.sessionID);

    //allow any user that is authorized
    if(session && session.autherized && token == session.token){
        console.log('Log: you are good to go');
        return next(new Error('You are good to go'));
    }

    //if the client changed their token "client logged out"
    //terminate the open session before opening a new one
    if (session.autherized && token != session.token){

    var decodedToken = base64url.decode(token);

    sessionChecker.validateData(decodedToken, myIP, env.session.duration, function(isValid, icws){

        if(!isValid){
            console.log('Log: token could not be validated!');
            return next(new Error('Token could not be validated!'));
        }

        session.authorized = true;
        session.icwsServer = icws.host;
        session.icwsPort = icws.port;
        session.token = token;
        session.icwsSessionId = null;
        session.icwsToken = null;

        icwsRequest.setConnection(icws.host, icws.port);
        var icwsConnection = new icwsConn(icwsRequest);

        session.save(function(){
            console.log('Log: new connection to websocket!');
            return next();
        });
    });

});


io.on('connection', function (socket) { 

    console.log('Connection is validated and ready for action!');

    var socketId = socket.id;

    if(!socket.handshake.sessionID){
        console.log('sessionId was not found');
        return false;
    }

    var sessionID = socket.handshake.sessionID;
    var userCons = clients[sessionID] || [];

    //Add this socket to the user's connection
    if(userCons.indexOf(socketId) == -1){
        userCons.push(socketId);
    }

    clients[sessionID] = userCons;

    socket.on('chat', function(msg){

        for (var key in clients[sessionID]) {
          if (clients[sessionID].hasOwnProperty(key)) {
            var id = clients[sessionID][key];
            console.log('Client Said: ' + msg);
            io.to(id).emit('chat', {message: 'Server Said: ' + msg});
          }
        }
    });


    socket.on('disconnect', function(msg){
        console.log('Closing sessionID: ' + sessionID);
        var userCons = clients[sessionID] || [];

        var index = userCons.indexOf(socketId);

        if(index > -1){
            userCons.splice(index, 1);
            console.log('Removed Disconnect Message: ' + msg);
        } else {
            console.log('Disconnect Message: ' + msg);
        }

    }); 

    socket.on('error', function(msg){
        console.log('Error Message: ' + msg);
    }); 

});


app.get('/', function (req, res) {
    res.send('welcome: ' + req.sessionID);
});

app.get('/read', function (req, res) {
    res.send('welcome: ' + req.session.name);
});

app.get('/set/:name', function (req, res) {
    req.session.name = req.params.name;
    res.send('welcome: ' + req.session.name);
});

以下是我從PHP服務器連接到websocket的方法

<!doctype html>
<html lang="en-US">
  <head>
    <title>Socket.IO chat</title>
    <meta charset="utf-8">
    <style>
      * { margin: 0; padding: 0; box-sizing: border-box; }
      body { font: 13px Helvetica, Arial; }
      form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; }
      form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; }
      form button { width: 9%; background: rgb(130, 224, 255); border: none; padding: 10px; }
      #messages { list-style-type: none; margin: 0; padding: 0; }
      #messages li { padding: 5px 10px; }
      #messages li:nth-child(odd) { background: #eee; }
    </style>

    <script src="https://10.0.4.18:8020/socket.io/socket.io.js"></script>
    <script type="text/javascript" src="/js/jquery-2.1.0.min.js"></script>
    <script>

        $(function(){
            var socket = io.connect('https://10.0.4.18:8020', {secure: true, port: 8020,  query : 'PHP generated token that will be used to authenticate the user from node.js'});

           //When the "send" button is clicked
            $('#f').click(function(e){
                e.preventDefault();
                var message = $('#m').val().trim();
                if( message  == ''){
                    return false;
                }

                socket.emit('chat', message);
                $('#m').val('');
            });

            socket.on('chat', function(msg){
                $('#messages').append($('<li>').text(msg.message));
            });

        });

    </script>

  </head>
  <body>
    <ul id="messages"></ul>
    <form action="" id="f">
      <input id="m" autocomplete="off" /><button>Send</button>
    </form>
  </body>
</html>

Answer 1

將令牌存儲在瀏覽器中，並將其與來自php的每個請求一起發送，其授權持有者如下所示：

Authorization: Bearer token

因此，每當node.js服務器獲得請求時，您都可以比較用戶對應的令牌並獲取數據。

您可以將userid和令牌之間的關系存儲在表中的到期日期，並在每次登錄時刷新令牌。

此外，如果您不想使用表，可以使用JWT將數據存儲在令牌中

你可以在這里找到更多信息：

http://jwt.io/