more command and control

This commit is contained in:
AJ ONeal 2018-06-08 00:46:07 -06:00
parent ce7854b79d
commit b97239b252
6 changed files with 405 additions and 144 deletions

View File

@ -3,12 +3,12 @@
'use strict';
var pkg = require('../package.json');
console.log(pkg.name, pkg.version);
console.info(pkg.name, pkg.version);
var url = require('url');
var path = require('path');
var remote = require('../');
var state = {};
var http = require('http');
var state = { servernames: {}, ports: {} };
var argv = process.argv.slice(2);
@ -29,11 +29,26 @@ function help() {
console.info('');
console.info('Usage:');
console.info('');
console.info('\ttelebit --config <path>');
console.info('\ttelebit [--config <path>] <module> <module-option>');
console.info('');
console.info('Example:');
console.info('Examples:');
console.info('');
console.info('\ttelebit --config /etc/telebit/telebit.yml');
console.info('\ttelebit --config ~/.config/telebit/telebit.yml status');
console.info('');
console.info('\ttelebit status');
console.info('\ttelebit enable');
console.info('\ttelebit disable');
console.info('');
console.info('\ttelebit list');
console.info('');
console.info('\ttelebit http 3000');
console.info('\ttelebit tcp 5050');
console.info('');
console.info('\ttelebit http default');
console.info('\ttelebit tcp default');
console.info('');
console.info('\ttelebit http /path/to/module');
console.info('\ttelebit tcp /path/to/module');
console.info('');
console.info('Config:');
console.info('');
@ -63,11 +78,13 @@ try {
} catch(e) {
// ignore
}
var controlServer;
require('fs').readFile(confpath, 'utf8', function (err, text) {
var config;
var recase = require('recase').create({});
var camelCopy = recase.camelCopy.bind(recase);
var snakeCopy = recase.snakeCopy.bind(recase);
if (err) {
console.error("\nCouldn't load config:\n\n\t" + err.message + "\n");
@ -100,21 +117,49 @@ require('fs').readFile(confpath, 'utf8', function (err, text) {
console.warn("Choosing the first.");
console.warn();
}
state.config.token = token;
state.token = token;
function restartCmd() {
if (!state.config.servernames) {
state.config.servernames = {};
}
if (!state.config.ports) {
state.config.ports = {};
}
state.servernames = JSON.parse(JSON.stringify(state.config.servernames));
state.ports = JSON.parse(JSON.stringify(state.config.ports));
function putConfig(service, args) {
var http = require('http');
var req = http.get({
socketPath: state.config.sock || defaultSockname
, method: 'POST'
, path: '/rpc/restart'
, path: '/rpc/' + service + '?_body=' + JSON.stringify(args)
}, function (resp) {
console.log('statusCode', resp.statusCode);
if (200 !== resp.statusCode) {
console.warn("May not have restarted."
+ " Consider peaking at the logs either with 'journalctl -xeu telebit' or /opt/telebit/var/log/error.log");
function finish() {
if (200 !== resp.statusCode) {
console.warn("'" + service + "' may have failed."
+ " Consider peaking at the logs either with 'journalctl -xeu telebit' or /opt/telebit/var/log/error.log");
} else {
if (body) {
console.info('Response');
console.info(body);
} else {
console.info("👌");
}
}
}
var body = '';
if (resp.headers['content-length']) {
resp.on('data', function (chunk) {
body += chunk.toString();
});
resp.on('end', function () {
finish();
});
} else {
console.log("restarted");
finish();
}
});
req.on('error', function (err) {
@ -124,30 +169,136 @@ require('fs').readFile(confpath, 'utf8', function (err, text) {
});
}
function controlServer() {
var http = require('http');
var server = http.createServer(function (req, res) {
var tun;
function serveControls() {
if (!state.config.disable) {
tun = rawTunnel();
}
controlServer = http.createServer(function (req, res) {
var opts = url.parse(req.url, true);
if (opts.query._body) {
try {
opts.body = JSON.parse(opts.query._body, true);
} catch(e) {
res.statusCode = 500;
res.end('{"error":{"message":"?_body={{bad_format}}"}}');
return;
}
}
if (/restart/.test(req.url)) {
res.end('{"success":true}');
if (/enable/.test(opts.path)) {
state.config.disable = undefined;
if (!tun) { tun = rawTunnel(); }
fs.writeFile(confpath, require('js-yaml').safeDump(snakeCopy(state.config)), function () {
if (err) {
res.statusCode = 500;
res.end('{"error":{"message":"Could not save config file. Perhaps you\'re not running as root?"}}');
return;
}
res.end('{"success":true}');
});
return;
}
if (/disable/.test(opts.path)) {
state.config.disable = true;
if (tun) { tun.end(); tun = null; }
fs.writeFile(confpath, require('js-yaml').safeDump(snakeCopy(state.config)), function () {
if (err) {
res.statusCode = 500;
res.end('{"error":{"message":"Could not save config file. Perhaps you\'re not running as root?"}}');
return;
}
res.end('{"success":true}');
});
return;
}
if (/status/.test(opts.path)) {
res.end('{"status":' + (state.config.disable ? 'disabled' : 'enabled') + '}');
return;
}
if (/restart/.test(opts.path)) {
tun.end();
process.nextTick(function () {
server.close(function () {
// TODO closeAll other things
res.end('{"success":true}');
controlServer.close(function () {
// TODO closeAll other things
process.nextTick(function () {
// system daemon will restart the process
process.exit();
});
});
return;
}
if (/list/.test(opts.path)) {
res.end(JSON.stringify({
servernames: state.servernames
, ports: state.ports
}));
return;
}
if (/http/.test(opts.path)) {
if (!opts.body) {
res.statusCode = 422;
res.end('{"error":{"message":"needs more arguments"}}');
return;
}
if (opts.body[1]) {
if (!state.servernames[opts.body[1]]) {
res.statusCode = 400;
res.end('{"error":{"message":"bad servername \'' + opts.body[1] + '\'"');
return;
}
state.servernames[opts.body[1]].handler = opts.body[0];
} else {
Object.keys(state.servernames).forEach(function (key) {
state.servernames[key].handler = opts.body[0];
});
}
res.end('{"success":true}');
return;
}
if (/tcp/.test(opts.path)) {
if (!opts.body) {
res.statusCode = 422;
res.end('{"error":{"message":"needs more arguments"}}');
return;
}
if (opts.body[1]) {
if (!state.servernames[opts.body[1]]) {
res.statusCode = 400;
res.end('{"error":{"message":"bad servername \'' + opts.body[1] + '\'"');
return;
}
state.servernames[opts.body[1]].handler = opts.body[0];
} else {
Object.keys(state.servernames).forEach(function (key) {
state.servernames[key].handler = opts.body[0];
});
}
res.end('{"success":true}');
return;
}
res.end('{"error":{"message":"unrecognized rpc"}}');
});
var pipename = (state.config.sock || defaultSockname);
var fs = require('fs');
if (fs.existsSync(pipename)) {
fs.unlinkSync(pipename);
}
if (/^win/i.test(require('os').platform())) {
pipename = '\\\\?\\pipe' + pipename.replace(/\//, '\\');
}
// mask is so that processes owned by other users
// can speak to this process, which is probably root-owned
var oldUmask = process.umask(0x0000);
server.listen({
controlServer.listen({
path: pipename
, writableAll: true
, readableAll: true
@ -157,18 +308,46 @@ require('fs').readFile(confpath, 'utf8', function (err, text) {
});
}
console.log('argv', argv);
if (-1 !== argv.indexOf('restart')) {
restartCmd();
return;
// Two styles:
// http 3000
// http modulename
function makeRpc(key) {
var cmdIndex = argv.indexOf(key);
if (-1 !== cmdIndex) {
putConfig(argv[cmdIndex], argv.slice(1));
return true;
}
}
controlServer();
var tun = rawTunnel();
if ([ 'status', 'enable', 'disable', 'restart', 'list' ].some(makeRpc)) {
return;
}
if ([ 'http', 'tcp' ].some(function (key) {
var cmdIndex = argv.indexOf(key);
if (-1 !== cmdIndex && argv[cmdIndex + 1]) {
putConfig(argv[cmdIndex], argv.slice(1));
return true;
}
})) {
return true;
}
serveControls();
});
function connectTunnel() {
state.net = {
function sigHandler() {
console.info('Received kill signal. Attempting to exit cleanly...');
// 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();
controlServer.close();
}
process.on('SIGINT', sigHandler);
state.net = state.net || {
createConnection: function (info, cb) {
// data is the hello packet / first chunk
// info = { data, servername, port, host, remoteFamily, remoteAddress, remotePort }
@ -180,9 +359,8 @@ function connectTunnel() {
};
state.greenlock = state.config.greenlock || {};
if (!state.config.sortingHat) {
state.config.sortingHat = path.resolve(__dirname, '..', 'lib/sorting-hat.js');
}
state.sortingHat = state.config.sortingHat || path.resolve(__dirname, '..', 'lib/sorting-hat.js');
// TODO sortingHat.print(); ?
if (state.config.email && !state.token) {
@ -199,95 +377,103 @@ function connectTunnel() {
console.info();
}
// TODO Check undefined vs false for greenlock config
var remote = require('../');
state.handlers = {
grant: function (grants) {
console.info("");
console.info("Connect to your device by any of the following means:");
console.info("");
grants.forEach(function (arr) {
if ('https' === arr[0]) {
if (!state.servernames[arr[1]]) {
state.servernames[arr[1]] = {};
}
} else if ('tcp' === arr[0]) {
if (!state.ports[arr[2]]) {
state.ports[arr[2]] = {};
}
}
if ('ssh+https' === arr[0]) {
console.info("SSH+HTTPS");
} else if ('ssh' === arr[0]) {
console.info("SSH");
} else if ('tcp' === arr[0]) {
console.info("TCP");
} else if ('https' === arr[0]) {
console.info("HTTPS");
}
console.info('\t' + arr[0] + '://' + arr[1] + (arr[2] ? (':' + arr[2]) : ''));
if ('ssh+https' === arr[0]) {
console.info("\tex: ssh -o ProxyCommand='openssl s_client -connect %h:%p -quiet' " + arr[1] + " -p 443\n");
} else if ('ssh' === arr[0]) {
console.info("\tex: ssh " + arr[1] + " -p " + arr[2] + "\n");
} else if ('tcp' === arr[0]) {
console.info("\tex: netcat " + arr[1] + " " + arr[2] + "\n");
} else if ('https' === arr[0]) {
console.info("\tex: curl https://" + arr[1] + "\n");
}
});
}
, access_token: function (opts) {
console.info("Updating '" + tokenpath + "' with new token:");
try {
require('fs').writeFileSync(tokenpath, opts.jwt);
} catch (e) {
console.error("Token not saved:");
console.error(e);
}
}
};
state.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 || path.resolve(__dirname, '..', '/etc/acme/')
// TODO, store: require(state.greenlock.store.name || 'le-store-certbot').create(state.greenlock.store.options || {})
, approveDomains: function (opts, certs, cb) {
// 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.config.agreeTos;
cb(null, { options: opts, certs: certs });
return;
//}
//cb(new Error("servername not found in allowed list"));
}
};
state.insecure = state.config.relay_ignore_invalid_certificates;
// { relay, config, servernames, ports, sortingHat, net, insecure, token, handlers, greenlockConfig }
var tun = remote.connect({
relay: state.config.relay
relay: state.relay
, config: state.config
, _confpath: confpath
, sortingHat: state.config.sortingHat
, sortingHat: state.sortingHat
, net: state.net
, insecure: state.config.relay_ignore_invalid_certificates
, insecure: state.insecure
, token: state.token
, handlers: {
grant: function (grants) {
console.info("");
console.info("Connect to your device by any of the following means:");
console.info("");
grants.forEach(function (arr) {
if ('ssh+https' === arr[0]) {
console.info("SSH+HTTPS");
} else if ('ssh' === arr[0]) {
console.info("SSH");
} else if ('tcp' === arr[0]) {
console.info("TCP");
} else if ('https' === arr[0]) {
console.info("HTTPS");
}
console.log('\t' + arr[0] + '://' + arr[1] + (arr[2] ? (':' + arr[2]) : ''));
if ('ssh+https' === arr[0]) {
console.info("\tex: ssh -o ProxyCommand='openssl s_client -connect %h:%p -quiet' " + arr[1] + " -p 443\n");
} else if ('ssh' === arr[0]) {
console.info("\tex: ssh " + arr[1] + " -p " + arr[2] + "\n");
} else if ('tcp' === arr[0]) {
console.info("\tex: netcat " + arr[1] + " " + arr[2] + "\n");
} else if ('https' === arr[0]) {
console.info("\tex: curl https://" + arr[1] + "\n");
}
});
}
, access_token: function (opts) {
console.info("Updating '" + tokenpath + "' with new token:");
try {
require('fs').writeFileSync(tokenpath, opts.jwt);
} catch (e) {
console.error("Token not saved:");
console.error(e);
}
}
}
, 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 || path.resolve(__dirname, '..', '/etc/acme/')
// TODO, store: require(state.greenlock.store.name || 'le-store-certbot').create(state.greenlock.store.options || {})
, approveDomains: function (opts, certs, cb) {
// 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.config.agreeTos;
cb(null, { options: opts, certs: certs });
return;
//}
//cb(new Error("servername not found in allowed list"));
}
}
, servernames: state.servernames
, ports: state.ports
, handlers: state.handlers
, greenlockConfig: state.greenlockConfig
});
function sigHandler() {
console.info('Received kill signal. Attempting to exit cleanly...');
// 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);
return tun;
}
function rawTunnel() {
if (!state.config.relay) {
state.relay = state.config.relay;
if (!state.relay) {
throw new Error("'" + state._confpath + "' is missing 'relay'");
}
@ -299,13 +485,13 @@ function rawTunnel() {
}
*/
var location = url.parse(state.config.relay);
var location = url.parse(state.relay);
if (!location.protocol || /\./.test(location.protocol)) {
state.config.relay = 'wss://' + state.config.relay;
location = url.parse(state.config.relay);
state.relay = 'wss://' + state.relay;
location = url.parse(state.relay);
}
var aud = location.hostname + (location.port ? ':' + location.port : '');
state.config.relay = location.protocol + '//' + aud;
state.relay = location.protocol + '//' + aud;
if (!state.config.token && state.config.secret) {
var jwt = require('jsonwebtoken');

View File

@ -7,8 +7,13 @@ secret: '' # Shared Secret with Telebit Relay for authoriza
#token: '' # Token created by Telebit Relay for authorization
ssh_auto: 22 # forward ssh-looking packets, from any connection, to port 22
servernames: # hostnames that direct to the Telebit Relay admin console
example.com: {}
example.net: {}
example.com:
handler: 3000
example.net:
handler: /path/to/module
ports:
5050:
handler: 54321
greenlock:
version: 'draft-11'
server: 'https://acme-staging-v02.api.letsencrypt.org/directory'

22
lib/html/index.html Normal file
View File

@ -0,0 +1,22 @@
<!DOCTYPE html>
<html>
<head>
<title>Telebit</title>
<meta charset="utf-8">
</head>
<body>
<script>document.body.hidden = true;</script>
<h1>Welcome Home <!-- as in 127.0.0.1, y'know ;) --></h1>
<h2>You've claimed <span class="js-servername">{{servername}}</span></h2>
<p>Here's same ways you can use it:</p>
<pre><code>telebit http 3000</code></pre>
<h2>You've claimed <span class="js-serviceport">{{serviceport}}</span></h2>
<p>Here's same ways you can use it:</p>
<pre><code>#telebit tcp 3000</code></pre>
<script src="js/app.js"></script>
</body>
</html>

36
lib/html/js/app.js Normal file
View File

@ -0,0 +1,36 @@
(function () {
'use strict';
document.body.hidden = false;
var hash = window.location.hash.slice(1);
function parseQuery(search) {
var args = search.substring(1).split('&');
var argsParsed = {};
var i, arg, kvp, key, value;
for (i=0; i < args.length; i++) {
arg = args[i];
if (-1 === arg.indexOf('=')) {
argsParsed[decodeURIComponent(arg).trim()] = true;
} else {
kvp = arg.split('=');
key = decodeURIComponent(kvp[0]).trim();
value = decodeURIComponent(kvp[1]).trim();
argsParsed[key] = value;
}
}
return argsParsed;
}
console.log(parseQuery(hash));
}());

View File

@ -1,3 +1,7 @@
'use strict';
var os = require('os');
var path = require('path');
module.exports.print = function (config) {
var services = { https: {}, http: {}, tcp: {} };
// Note: the remote needs to know:
@ -78,11 +82,13 @@ module.exports.assign = function (state, tun, cb) {
state.httpRedirectServer.emit('connection', socket);
};
handlers.https = function (tlsSocket) {
console.log('Enccrypted', tlsSocket.encrypted, tlsSocket.remoteAddress, tlsSocket.remotePort);
console.log('Encrypted', tlsSocket.encrypted, tlsSocket.remoteAddress, tlsSocket.remotePort);
if (!state.defaultHttpServer) {
state._finalHandler = require('finalhandler');
state._serveStatic = require('serve-static');
state._defaultServe = state._serveStatic(path.join(__dirname, 'html'));
state.defaultHttpServer = require('http').createServer(function (req, res) {
console.log('[hit http/s server]');
res.end('Hello, Encrypted Tunnel World!');
state._defaultServe(req, res, state._finalHandler(req, res));
});
}
state.defaultHttpServer.emit('connection', tlsSocket);
@ -183,26 +189,27 @@ module.exports.assign = function (state, tun, cb) {
}
var handle = tun.name || tun.port;
var handler;
var handlerpath = conf.handler;
var path = require('path');
var homedir = require('os').homedir();
var homedir = os.homedir();
var localshare = path.join(homedir, '.local/share/telebit/apps');
if (/^~/.test(conf.handler)) {
conf.handler = require('path').join(require('os').homedir(), conf.handler.replace(/^~(\/?)/, ''));
if (/^~/.test(handlerpath)) {
handlerpath = path.join(homedir, handlerpath.replace(/^~(\/?)/, ''));
}
try {
handler = require(conf.handler);
console.info("Handling '" + handle + ":" + id + "' with '" + conf.handler + "'");
handler = require(handlerpath);
console.info("Handling '" + handle + ":" + id + "' with '" + handlerpath + "'");
handler(tlsSocket, tun, id);
} catch(e1) {
try {
handler = require(path.join(localshare, conf.handler));
console.info("Handling '" + handle + ":" + id + "' with '" + conf.handler + "'");
handler = require(path.join(localshare, handlerpath));
console.info("Handling '" + handle + ":" + id + "' with '" + handlerpath + "'");
handler(tlsSocket, tun, id);
} catch(e2) {
console.error("Failed to load '" + conf.handler + "':", e1.message);
console.error("Failed to load '" + path.join(localshare, conf.handler) + "':", e2.message);
console.error("Failed to load '" + handlerpath + "':", e1.message);
console.error("Failed to load '" + path.join(localshare, handlerpath) + "':", e2.message);
console.warn("Using default handler for '" + handle + ":" + id + "'");
handlers.https(tlsSocket, tun, id);
}
@ -231,7 +238,7 @@ module.exports.assign = function (state, tun, cb) {
defineProps(tlsSocket, addr);
//console.log('[hit tls server]', tlsSocket.remoteFamily, tlsSocket.remoteAddress, tlsSocket.remotePort, tlsSocket.localPort);
//console.log(addr);
var conf = state.config.servernames[tlsSocket.servername];
var conf = state.servernames[tlsSocket.servername];
tlsSocket.once('data', function (firstChunk) {
tlsSocket.pause();
//tlsSocket.unshift(firstChunk);
@ -246,7 +253,7 @@ module.exports.assign = function (state, tun, cb) {
return;
}
if (!conf || !conf.handler) {
if (!conf || !conf.handler || 'none' === conf.handler) {
console.log('https default handler');
handlers.https(tlsSocket);
return;
@ -276,11 +283,6 @@ module.exports.assign = function (state, tun, cb) {
return;
}
if (!state.config.servernames) {
state.config.servernames = {};
}
if ('http' === tun.service || 'https' === tun.service) {
if (!tun.name) {
cb(new Error("No routing information for ':tun_id'. Service '" + tun.service + "' is missing 'name'."));
@ -290,13 +292,13 @@ module.exports.assign = function (state, tun, cb) {
if ('http' === tun.service) {
// TODO match *.example.com
handled = Object.keys(state.config.servernames).some(function (sn) {
handled = Object.keys(state.servernames).some(function (sn) {
if (sn !== tun.name) { return; }
console.log('Found config match for PLAIN', tun.name);
if (!state.config.servernames[sn]) { return; }
if (!state.servernames[sn]) { return; }
if (false === state.config.servernames[sn].terminate) {
if (false === state.servernames[sn].terminate) {
cb(new Error("insecure http not supported yet"));
return true;
}
@ -313,13 +315,13 @@ module.exports.assign = function (state, tun, cb) {
if ('https' === tun.service) {
// TODO match *.example.com
handled = Object.keys(state.config.servernames).some(function (sn) {
handled = Object.keys(state.servernames).some(function (sn) {
if (sn !== tun.name) { return; }
console.log('Found config match for TLS', tun.name);
if (!state.config.servernames[sn]) { return; }
if (!state.servernames[sn]) { return; }
if (false === state.config.servernames[sn].terminate) {
if (false === state.servernames[sn].terminate) {
cb(new Error("insecure http not supported yet"));
return true;
}
@ -339,7 +341,15 @@ module.exports.assign = function (state, tun, cb) {
if (conn) { cb(null, conn); return; }
// TODO add TCP handlers
console.log('Using echo server for tcp');
echoTcp(cb);
var conf = state.ports[tun.serviceport];
if (!conf || !conf.handler || 'none' === conf.handler) {
echoTcp(cb);
}
var Packer = require('proxy-packer');
//var addr = Packer.socketToAddr(conn);
var id = Packer.addrToId(tun);
invokeHandler(conf, conn, tun, id);
});
return;
}

View File

@ -49,12 +49,14 @@
"dependencies": {
"bluebird": "^3.5.1",
"commander": "^2.9.0",
"finalhandler": "^1.1.1",
"greenlock": "^2.2.19",
"js-yaml": "^3.11.0",
"jsonwebtoken": "^7.1.9",
"proxy-packer": "^1.4.3",
"recase": "^1.0.4",
"redirect-https": "^1.1.5",
"serve-static": "^1.13.2",
"sni": "^1.0.0",
"socket-pair": "^1.0.3",
"ws": "^2.2.3"