113 lines
3.1 KiB
JavaScript
113 lines
3.1 KiB
JavaScript
'use strict';
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var net = require('net');
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var jwt = require('jsonwebtoken');
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var sni = require('sni');
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// TODO ask oauth3.org where to connect
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// TODO reconnect on disconnect
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// Assumption: will not get next tcp packet unless previous packet succeeded
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//var services = { 'ssh': 22, 'http': 80, 'https': 443 };
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var services = { 'ssh': 22, 'http': 4080, 'https': 8443 };
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var hostname = 'aj.daplie.me'; // 'pokemap.hellabit.com'
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function addrToId(address) {
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return address.family + ',' + address.address + ',' + address.port;
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}
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/*
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function socketToAddr(socket) {
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return { family: socket.remoteFamily, address: socket.remoteAddress, port: socket.remotePort };
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}
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function socketToId(socket) {
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return addrToId(socketToAddr(socket));
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}
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*/
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var tunneler = net.connect({ port: 5443 , host: hostname }, function () {
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var token = jwt.sign({ name: hostname }, 'shhhhh');
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var localclients = {};
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setInterval(function () {
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console.log('');
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console.log('localclients.length:', Object.keys(localclients).length);
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console.log('');
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}, 5000);
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tunneler.write(token);
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// BaaS / Backendless / noBackend / horizon.io
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// user authentication
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// a place to store data
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// file management
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// Synergy Teamwork Paradigm = Jabberwocky
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var pack = require('tunnel-packer').pack;
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function onMessage(opts) {
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var id = addrToId(opts);
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var service = 'https';
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var port = services[service];
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var lclient;
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if (opts.data.byteLength < 20) {
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if ('|__ERROR__|' === opts.data.toString('utf8')
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|| '|__END__|' === opts.data.toString('utf8')) {
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console.log("end '" + opts.address + "'");
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if (localclients[id]) {
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localclients[id].end();
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delete localclients[id];
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}
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return;
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}
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}
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if (localclients[id]) {
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console.log("received data from '" + opts.address + "'", opts.data.byteLength);
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localclients[id].write(opts.data);
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return;
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}
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var servername = sni(opts.data);
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if (!servername) {
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console.warn("no servername found for '" + id + "'");
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tunneler.write(pack(opts, Buffer.from('|__ERROR__|')));
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return;
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}
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console.log("servername: '" + servername + "'");
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lclient = localclients[id] = net.createConnection({ port: port, host: '127.0.0.1' }, function () {
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lclient.on('data', function (chunk) {
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console.log("client '" + opts.address + "' sent ", chunk.byteLength, "bytes");
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tunneler.write(pack(opts, chunk));
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});
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lclient.on('error', function (err) {
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console.error('client Error');
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console.error(err);
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delete localclients[id];
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tunneler.write(pack(opts, Buffer.from('|__ERROR__|')));
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});
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lclient.on('end', function () {
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console.log('client End');
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delete localclients[id];
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tunneler.write(pack(opts, Buffer.from('|__END__|')));
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});
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console.log('received data', opts.data.byteLength);
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lclient.write(opts.data);
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});
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}
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var machine = require('tunnel-packer').create({ onMessage: onMessage });
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tunneler.on('data', machine.fns.addChunk);
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tunneler.on('end', function () {
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console.log('end');
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});
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});
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