telebit.js/bin/telebit.js

359 lines
11 KiB
JavaScript
Executable File

#!/usr/bin/env node
(function () {
'use strict';
var pkg = require('../package.json');
console.log(pkg.name, pkg.version);
var url = require('url');
var remote = require('../remote.js');
var state = {};
var argv = process.argv.slice(2);
var confIndex = argv.indexOf('--config');
var confpath;
if (-1 === confIndex) {
confIndex = argv.indexOf('-c');
}
confpath = argv[confIndex + 1];
function help() {
console.info('');
console.info('Telebit Remote v' + pkg.version);
console.info('');
console.info('Usage:');
console.info('');
console.info('\ttelebit --config <path>');
console.info('');
console.info('Example:');
console.info('');
console.info('\ttelebit --config /etc/telebit/telebit.yml');
console.info('');
console.info('Config:');
console.info('');
console.info('\tSee https://git.coolaj86.com/coolaj86/telebit.js');
console.info('');
console.info('');
process.exit(0);
}
if (-1 === confIndex) {
confpath = require('path').join(require('os').homedir(), '.config/telebit/telebit.yml');
console.info('Using default --config "' + confpath + '"');
}
if (-1 !== argv.indexOf('-h') || -1 !== argv.indexOf('--help')) {
help();
}
if (!confpath || /^--/.test(confpath)) {
help();
}
require('fs').readFile(confpath, 'utf8', function (err, text) {
var config;
var recase = require('recase').create({});
var camelCopy = recase.camelCopy.bind(recase);
if (err) {
console.error("\nCouldn't load config:\n\n\t" + err.message + "\n");
process.exit(1);
return;
}
try {
config = JSON.parse(text);
} catch(e1) {
try {
config = require('js-yaml').safeLoad(text);
} catch(e2) {
console.error(e1.message);
console.error(e2.message);
process.exit(1);
return;
}
}
state.config = camelCopy(config);
rawTunnel();
});
function connectTunnel() {
state.net = {
createConnection: function (info, cb) {
// data is the hello packet / first chunk
// info = { data, servername, port, host, remoteFamily, remoteAddress, remotePort }
var net = require('net');
// socket = { write, push, end, events: [ 'readable', 'data', 'error', 'end' ] };
var socket = net.createConnection({ port: info.port, host: info.host }, cb);
return socket;
}
};
state.greenlock = state.config.greenlock || {};
if (!state.config.sortingHat) {
state.config.sortingHat = './lib/sorting-hat.js';
}
state.config.sortingHat = require('path').resolve(__dirname, '..', state.config.sortingHat);
// TODO Check undefined vs false for greenlock config
var tun = remote.connect({
relay: state.config.relay
, config: state.config
, sortingHat: state.config.sortingHat
, net: state.net
, insecure: state.config.relay_ignore_invalid_certificates
, token: state.token
, greenlockConfig: {
version: state.greenlock.version || 'draft-11'
, server: state.greenlock.server || 'https://acme-v02.api.letsencrypt.org/directory'
, communityMember: state.greenlock.communityMember || state.config.communityMember
, telemetry: state.greenlock.telemetry || state.config.telemetry
, configDir: state.greenlock.configDir || '~/acme/etc/'
// TODO, store: require(state.greenlock.store.name || 'le-store-certbot').create(state.greenlock.store.options || {})
, approveDomains: function (opts, certs, cb) {
console.log("trying approve domains");
// Certs being renewed are listed in certs.altnames
if (certs) {
opts.domains = certs.altnames;
cb(null, { options: opts, certs: certs });
return;
}
// by virtue of the fact that it's being tunneled through a
// trusted source that is already checking, we're good
//if (-1 !== state.config.servernames.indexOf(opts.domains[0])) {
opts.email = state.greenlock.email || state.config.email;
opts.agreeTos = state.greenlock.agree || state.agreeTos;
cb(null, { options: opts, certs: certs });
return;
//}
//cb(new Error("servername not found in allowed list"));
}
}
});
require(state.config.sortingHat).print(state.config);
function sigHandler() {
console.log('SIGINT');
// We want to handle cleanup properly unless something is broken in our cleanup process
// that prevents us from exitting, in which case we want the user to be able to send
// the signal again and exit the way it normally would.
process.removeListener('SIGINT', sigHandler);
tun.end();
}
process.on('SIGINT', sigHandler);
}
function rawTunnel() {
if (!state.config.relay) {
throw new Error("config is missing 'relay'");
}
if (!(state.config.secret || state.config.token)) {
console.error("You must use --secret or --token with --relay");
process.exit(1);
return;
}
var location = url.parse(state.config.relay);
if (!location.protocol || /\./.test(location.protocol)) {
state.config.relay = 'wss://' + state.config.relay;
location = url.parse(state.config.relay);
}
var aud = location.hostname + (location.port ? ':' + location.port : '');
state.config.relay = location.protocol + '//' + aud;
if (!state.config.token) {
var jwt = require('jsonwebtoken');
var tokenData = {
domains: Object.keys(state.config.servernames).filter(function (name) { return /\./.test(name); })
, aud: aud
, iss: Math.round(Date.now() / 1000)
};
state.token = jwt.sign(tokenData, state.config.secret);
}
state.token = state.token || state.config.token;
connectTunnel();
}
/*
var domainsMap = {};
var services = {};
function collectDomains(val, memo) {
var vals = val.split(/,/g);
function parseProxy(location) {
// john.example.com
// http:john.example.com:3000
// http://john.example.com:3000
var parts = location.split(':');
if (1 === parts.length) {
// john.example.com -> :john.example.com:0
parts[1] = parts[0];
parts[0] = '';
parts[2] = 0;
}
else if (2 === parts.length) {
throw new Error("invalid arguments for --domains, should use the format <domainname> or <scheme>:<domainname>:<local-port>");
}
if (!parts[1]) {
throw new Error("invalid arguments for --domains, should use the format <domainname> or <scheme>:<domainname>:<local-port>");
}
parts[0] = parts[0].toLowerCase();
parts[1] = parts[1].toLowerCase().replace(/(\/\/)?/, '');
parts[2] = parseInt(parts[2], 10) || 0;
memo.push({
protocol: parts[0]
, hostname: parts[1]
, port: parts[2]
});
}
vals.map(function (val) {
return parseProxy(val);
});
return memo;
}
function collectProxies(val, memo) {
var vals = val.split(/,/g);
function parseProxy(location) {
// john.example.com
// https:3443
// http:john.example.com:3000
// http://john.example.com:3000
var parts = location.split(':');
var dual = false;
if (1 === parts.length) {
// john.example.com -> :john.example.com:0
parts[1] = parts[0];
parts[0] = '';
parts[2] = 0;
dual = true;
}
else if (2 === parts.length) {
// https:3443 -> https:*:3443
parts[2] = parts[1];
parts[1] = '*';
}
parts[0] = parts[0].toLowerCase();
parts[1] = parts[1].toLowerCase().replace(/(\/\/)?/, '') || '*';
parts[2] = parseInt(parts[2], 10) || 0;
if (!parts[2]) {
// TODO grab OS list of standard ports?
if (!parts[0] || 'http' === parts[0]) {
parts[2] = 80;
}
else if ('https' === parts[0]) {
parts[2] = 443;
}
else {
throw new Error("port must be specified - ex: tls:*:1337");
}
}
memo.push({
protocol: parts[0] || 'https'
, hostname: parts[1]
, port: parts[2] || 443
});
if (dual) {
memo.push({
protocol: 'http'
, hostname: parts[1]
, port: 80
});
}
}
vals.map(function (val) {
return parseProxy(val);
});
return memo;
}
var program = require('commander');
program
.version(pkg.version)
//.command('jsurl <url>')
.arguments('<url>')
.action(function (url) {
program.url = url;
})
.option('-k --insecure', 'Allow TLS connections to a Telebit Relay without valid certs (rejectUnauthorized: false)')
.option('--locals <LIST>', 'comma separated list of <proto>:<port> to which matching incoming http and https should forward (reverse proxy). Ex: https:8443,smtps:8465', collectProxies, [ ]) // --reverse-proxies
.option('--domains <LIST>', 'comma separated list of domain names to set to the tunnel (to capture a specific protocol to a specific local port use the format https:example.com:1337 instead). Ex: example.com,example.net', collectDomains, [ ])
.option('--device [HOSTNAME]', 'Tunnel all domains associated with this device instead of specific domainnames. Use with --locals <proto>:<port>. Ex: macbook-pro.local (the output of `hostname`)')
.option('--relay <URL>', 'the domain (or ip address) at which you are running Telebit Relay (the proxy)') // --proxy
.option('--secret <STRING>', 'the same secret used by the Telebit Relay (used for JWT authentication)')
.option('--token <STRING>', 'a pre-generated token for use with the Telebit Relay (instead of generating one with --secret)')
.option('--agree-tos', 'agree to the Telebit Terms of Service (requires user validation)')
.option('--email <EMAIL>', 'email address (or cloud address) for user validation')
.option('--oauth3-url <URL>', 'Cloud Authentication to use (default: https://oauth3.org)')
.parse(process.argv)
;
program.locals = (program.locals || []).concat(program.domains || []);
program.locals.forEach(function (proxy) {
// Create a map from which we can derive a list of all domains we want forwarded to us.
if (proxy.hostname && proxy.hostname !== '*') {
domainsMap[proxy.hostname] = true;
}
// Create a map of which port different protocols should be forwarded to, allowing for specific
// domains to go to different ports if need be (though that only works for HTTP and HTTPS).
if (proxy.protocol && proxy.port) {
services[proxy.protocol] = services[proxy.protocol] || {};
if (/http/.test(proxy.protocol) && proxy.hostname && proxy.hostname !== '*') {
services[proxy.protocol][proxy.hostname] = proxy.port;
}
else {
if (services[proxy.protocol]['*'] && services[proxy.protocol]['*'] !== proxy.port) {
console.error('cannot forward generic', proxy.protocol, 'traffic to multiple ports');
process.exit(1);
}
else {
services[proxy.protocol]['*'] = proxy.port;
}
}
}
});
if (Object.keys(domainsMap).length === 0) {
console.error('no domains specified');
process.exit(1);
return;
}
// Make sure we have generic ports for HTTP and HTTPS
services.https = services.https || {};
services.https['*'] = services.https['*'] || 8443;
services.http = services.http || {};
services.http['*'] = services.http['*'] || services.https['*'];
program.services = services;
*/
}());