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我想查看网络套接字连接的第一个数据包的标头，然后从那里决定如何处理它。

TCP 示例（有效，但无用）

这是没用的，因为它不能解决我的问题，它只是证明，理论上，问题是可以解决的。

'use strict';

var net = require('net');
var http = require('http');

var http80 = http.createServer(function (req, res) {
  res.end('Hello, World!');
});

var tcp80 = net.createServer(function (socket) {

  socket.once('data', function (chunk) {

    if (/http\/1/i.test(chunk.toString())) {
      console.log("looks like http, continue");
      http80.emit('connection', socket);
    } else {
      console.log("looks like tcp, die");
      socket.end();
    }

    socket.pause();
    process.nextTick(function () {
      socket.emit('data', chunk);
      socket.resume();
    });
  });

});

tcp80.listen(80, function () {
  console.log('listening on 80');
});

TLS 示例（不起作用）

这是我实际上正在尝试做的，但不起作用：

'use strict';

var net = require('net');
var sni = require('sni');
var https = require('https');
var tlsOpts = require('localhost.daplie.com-certificates').merge({});

var https443 = https.createServer(tlsOpts, function (req, res) {
  res.end('Hello, Encrypted World!');
});

var tcp443 = net.createServer(function (socket) {

  // looking at the first packet, this is the gold
  socket.once('data', function (chunk) {

    // undo the read, more or less
    socket.pause();
    process.nextTick(function () {
      socket.emit('data', chunk);
      socket.resume();
    });

    if (/^tcp\.example\.com/i.test(sni(chunk))) {
      console.log("TODO: handle as raw tls / tcp");
      return;
    }

    console.log("handling as https");
    https443.emit('connection', socket);
  });

});

tcp443.listen(443, function () {
  console.log('listening on 443');
});

我尝试过手动发出readable事件以及data使用块和resumeing 手动发出事件，但它似乎在所有这些情况下都挂起，而不是像上面的示例那样工作。

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0 回答 0