monitor proxy traffic

[stefanocudini]

hi beautiful lib! congrants

I was trying to write a proxy socks that could log the http traffic and contents and show in stdout.

how can I do it? is there something like this already done?

my attempts is this:

const socks = require('socksv5');

const PORT = 9052;

//console.clear();

var srv = socks.createServer(function(info, accept, deny) {

  console.log('\n',info.cmd, info.dstAddr, info.dstPort);

  if (info.dstPort === 80) {  //NOT SSL
    var socket;
    if (socket = accept(true)) {

        /*socket.on('data', function(data) {
            console.log('DATA:', data.toString('ascii') );
        });*/

        socket.pipe(process.stdout);
        //socket.end()
    }
  }
  else  //SSL connection
    accept();
});

srv.listen(PORT, 'localhost', function() {
  console.log('SOCKS server listening on port',PORT);
});

srv.useAuth(socks.auth.None());

[mscdex]

I'm not sure what you're asking. Do you not see the raw data printed to stdout with the code you've shown?

[stefanocudini]

yes.. but only the headers, I wish I could see the body of requests and responses :-/

[mscdex]

1. You'll only see request bodies if they're sent, which may not always be the case
2. Responses require you to make an actual connection to the intended destination. Right now you're just connecting the incoming request socket to stdout. You have to make a separate socket connection to dstAddr:dstPort and pipe that back to socket (and optionally log that to stdout if you want).