Question

我有一个场景需要构建一个Web套接字客户端。客户端需要首先通过HTTP代理发出CONNECT请求。连接后，我手动在套接字上写入以升级连接。在Wireshark中，我看到服务器响应成功升级了连接，但我的req.on('upgrade')事件从未触发！我已经看过conn套接字回到req，但我无法让它工作。

有什么想法吗？

var http = require('http');

// make a request
var options = {
    port:8080,
    host:'http.proxy.com',
    path: 'echo.websocket.org:80',
    headers: {
        'Host': 'echo.websocket.org',
        'Proxy-Connection':'keep-alive'
    },
    method: 'CONNECT'
};

var req = http.request(options);
req.end();

req.on('connect', function(res, conn, connectHead) {
    console.log('connected');
    // manually request Web Socket upgrade
    conn.write('GET /?encoding=text HTTP/1.1\r\nUpgrade: websocket\r\nConnection: Upgrade\r\nHost: echo.websocket.org\r\nOrigin: http://www.websocket.org\r\nUser-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.154 Safari/537.36\r\n\r\n');    
});

// this event never fires!
req.on('upgrade', function (res, socket, upgradeHead) {
    console.log('got upgraded!');
    socket.write('test');
    socket.on('data', function (data) {
        console.log('req on data');
        console.log(data);
    });
});

CONNECT事件后，http.request事件不会触发

0 个答案: