518 lines
15 KiB
JavaScript
Executable File
518 lines
15 KiB
JavaScript
Executable File
#!/usr/bin/env node
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(function () {
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'use strict';
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var pkg = require('../package.json');
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var url = require('url');
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var path = require('path');
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var os = require('os');
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var common = require('../lib/cli-common.js');
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var http = require('http');
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var YAML = require('js-yaml');
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var recase = require('recase').create({});
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var camelCopy = recase.camelCopy.bind(recase);
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var snakeCopy = recase.snakeCopy.bind(recase);
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var state = { homedir: os.homedir(), servernames: {}, ports: {} };
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var argv = process.argv.slice(2);
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var confIndex = argv.indexOf('--config');
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var confpath;
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var confargs;
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if (-1 === confIndex) {
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confIndex = argv.indexOf('-c');
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}
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if (-1 !== confIndex) {
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confargs = argv.splice(confIndex, 2);
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confpath = confargs[1];
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}
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function help() {
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console.info('');
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console.info('Telebit Daemon v' + pkg.version);
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console.info('');
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console.info('Usage:');
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console.info('');
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console.info('\ttelebitd --config <path>');
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console.info('\tex: telebitd --config ~/.config/telebit/telebitd.yml');
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console.info('');
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console.info('');
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console.info('Config:');
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console.info('');
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console.info('\tSee https://git.coolaj86.com/coolaj86/telebit.js');
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console.info('');
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console.info('');
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}
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var verstr = '' + pkg.name + ' v' + pkg.version;
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if (-1 === confIndex) {
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confpath = path.join(state.homedir, '.config/telebit/telebitd.yml');
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verstr += ' (--config "' + confpath + '")';
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}
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console.info(verstr + '\n');
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if (-1 !== argv.indexOf('-h') || -1 !== argv.indexOf('--help')) {
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help();
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process.exit(0);
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}
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if (!confpath || /^--/.test(confpath)) {
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help();
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process.exit(1);
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}
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var tokenpath = path.join(path.dirname(confpath), 'access_token.txt');
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var token;
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try {
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token = require('fs').readFileSync(tokenpath, 'ascii').trim();
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} catch(e) {
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// ignore
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}
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var controlServer;
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var tun;
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function serveControls() {
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if (!state.config.disable && state.config.relay && (state.config.token || state.config.agreeTos)) {
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tun = rawTunnel();
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}
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controlServer = http.createServer(function (req, res) {
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var opts = url.parse(req.url, true);
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if (opts.query._body) {
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try {
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opts.body = JSON.parse(opts.query._body, true);
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} catch(e) {
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res.statusCode = 500;
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res.end('{"error":{"message":"?_body={{bad_format}}"}}');
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return;
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}
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}
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function listSuccess() {
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res.end(YAML.safeDump({
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servernames: state.servernames
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, ports: state.ports
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, ssh: state.config.sshAuto || 'disabled'
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}));
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}
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function sshSuccess() {
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fs.writeFile(confpath, YAML.safeDump(snakeCopy(state.config)), function (err) {
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if (err) {
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res.statusCode = 500;
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res.end('{"error":{"message":"Could not save config file. Perhaps you\'re not running as root?"}}');
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return;
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}
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res.end('{"success":true}');
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});
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}
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if (!state.config.relay || !state.config.email || !state.config.agreeTos) {
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res.statusCode = 400;
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res.end('{"error":{"code":"E_CONFIG","message":"Invalid config file. Please run \'telebit init\'"}}');
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return;
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}
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//
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// With proper config
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//
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if (/http/.test(opts.path)) {
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if (!opts.body) {
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res.statusCode = 422;
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res.end('{"error":{"message":"needs more arguments"}}');
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return;
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}
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if (opts.body[1]) {
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if (!state.servernames[opts.body[1]]) {
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res.statusCode = 400;
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res.end('{"error":{"message":"bad servername \'' + opts.body[1] + '\'"');
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return;
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}
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state.servernames[opts.body[1]].handler = opts.body[0];
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} else {
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Object.keys(state.servernames).forEach(function (key) {
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state.servernames[key].handler = opts.body[0];
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});
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}
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res.end('{"success":true}');
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return;
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}
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if (/tcp/.test(opts.path)) {
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if (!opts.body) {
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res.statusCode = 422;
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res.end('{"error":{"message":"needs more arguments"}}');
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return;
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}
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// portnum
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if (opts.body[1]) {
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if (!state.ports[opts.body[1]]) {
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res.statusCode = 400;
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res.end('{"error":{"message":"bad port \'' + opts.body[1] + '\'"');
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return;
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}
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// forward-to port-or-module
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state.ports[opts.body[1]].handler = opts.body[0];
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} else {
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Object.keys(state.ports).forEach(function (key) {
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state.ports[key].handler = opts.body[0];
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});
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}
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res.end('{"success":true}');
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return;
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}
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if (/save|commit/.test(opts.path)) {
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state.config.servernames = state.servernames;
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state.config.ports = state.ports;
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fs.writeFile(confpath, YAML.safeDump(snakeCopy(state.config)), function (err) {
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if (err) {
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res.statusCode = 500;
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res.end('{"error":{"message":"Could not save config file. Perhaps you\'re not running as root?"}}');
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return;
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}
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listSuccess();
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});
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return;
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}
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if (/ssh/.test(opts.path)) {
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var sshAuto;
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if (!opts.body) {
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res.statusCode = 422;
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res.end('{"error":{"message":"needs more arguments"}}');
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return;
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}
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sshAuto = opts.body[0];
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if (-1 !== [ 'false', 'none', 'off', 'disable' ].indexOf(sshAuto)) {
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state.config.sshAuto = false;
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sshSuccess();
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return;
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}
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if (-1 !== [ 'true', 'auto', 'on', 'enable' ].indexOf(sshAuto)) {
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state.config.sshAuto = 22;
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sshSuccess();
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return;
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}
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sshAuto = parseInt(sshAuto, 10);
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if (!sshAuto || sshAuto <= 0 || sshAuto > 65535) {
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res.statusCode = 400;
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res.end('{"error":{"message":"bad ssh_auto option \'' + opts.body[0] + '\'"');
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return;
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}
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state.config.sshAuto = sshAuto;
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sshSuccess();
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return;
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}
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if (/enable/.test(opts.path)) {
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delete state.config.disable;// = undefined;
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if (!tun) { tun = rawTunnel(); }
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fs.writeFile(confpath, YAML.safeDump(snakeCopy(state.config)), function (err) {
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if (err) {
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res.statusCode = 500;
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res.end('{"error":{"message":"Could not save config file. Perhaps you\'re not running as root?"}}');
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return;
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}
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listSuccess();
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});
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return;
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}
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if (/disable/.test(opts.path)) {
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state.config.disable = true;
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if (tun) { tun.end(); tun = null; }
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fs.writeFile(confpath, YAML.safeDump(snakeCopy(state.config)), function (err) {
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if (err) {
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res.statusCode = 500;
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res.end('{"error":{"message":"Could not save config file. Perhaps you\'re not running as root?"}}');
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return;
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}
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res.end('{"success":true}');
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});
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return;
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}
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if (/status/.test(opts.path)) {
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res.end(
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'{"status":' + (state.config.disable ? 'disabled' : 'enabled')
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+ ',"ready":' + (state.config.relay && (state.config.token || state.config.agreeTos)) ? 'true' : 'false'
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+ '}');
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return;
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}
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if (/restart/.test(opts.path)) {
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tun.end();
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res.end('{"success":true}');
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controlServer.close(function () {
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// TODO closeAll other things
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process.nextTick(function () {
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// system daemon will restart the process
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process.exit(22); // use non-success exit code
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});
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});
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return;
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}
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if (/list/.test(opts.path)) {
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listSuccess();
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return;
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}
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res.end('{"error":{"message":"unrecognized rpc"}}');
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});
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var pipename = common.pipename(state.config);
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var fs = require('fs');
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if (fs.existsSync(pipename)) {
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fs.unlinkSync(pipename);
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}
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// mask is so that processes owned by other users
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// can speak to this process, which is probably root-owned
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var oldUmask = process.umask(0x0000);
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controlServer.listen({
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path: pipename
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, writableAll: true
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, readableAll: true
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, exclusive: false
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}, function () {
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process.umask(oldUmask);
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});
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}
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function parseConfig(err, text) {
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var config;
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function run() {
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state._confpath = confpath;
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if (!state.config.servernames) {
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state.config.servernames = {};
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}
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if (!state.config.ports) {
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state.config.ports = {};
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}
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state.servernames = JSON.parse(JSON.stringify(state.config.servernames));
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state.ports = JSON.parse(JSON.stringify(state.config.ports));
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serveControls();
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}
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if (err) {
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console.warn("\nCouldn't load config:\n\n\t" + err.message + "\n");
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state.config = {};
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run();
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return;
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}
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try {
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config = JSON.parse(text);
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} catch(e1) {
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try {
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config = YAML.safeLoad(text);
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} catch(e2) {
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console.error(e1.message);
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console.error(e2.message);
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process.exit(1);
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return;
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}
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}
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state.config = camelCopy(config);
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if (state.config.token && token) {
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console.warn();
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console.warn("Found two tokens:");
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console.warn();
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console.warn("\t1. " + tokenpath);
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console.warn("\n2. " + confpath);
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console.warn();
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console.warn("Choosing the first.");
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console.warn();
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}
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state.token = token;
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run();
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}
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function connectTunnel() {
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function sigHandler() {
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console.info('Received kill signal. Attempting to exit cleanly...');
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// We want to handle cleanup properly unless something is broken in our cleanup process
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// that prevents us from exitting, in which case we want the user to be able to send
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// the signal again and exit the way it normally would.
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process.removeListener('SIGINT', sigHandler);
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tun.end();
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controlServer.close();
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}
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process.on('SIGINT', sigHandler);
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state.net = state.net || {
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createConnection: function (info, cb) {
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// data is the hello packet / first chunk
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// info = { data, servername, port, host, remoteFamily, remoteAddress, remotePort }
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var net = require('net');
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// socket = { write, push, end, events: [ 'readable', 'data', 'error', 'end' ] };
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var socket = net.createConnection({ port: info.port, host: info.host }, cb);
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return socket;
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}
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};
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state.greenlock = state.config.greenlock || {};
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state.sortingHat = state.config.sortingHat || path.resolve(__dirname, '..', 'lib/sorting-hat.js');
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// TODO sortingHat.print(); ?
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if (state.config.email && !state.token) {
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console.info();
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console.info('==================================');
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console.info('= HEY! LISTEN! =');
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console.info('==================================');
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console.info('= =');
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console.info('= 1. Open your email =');
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console.info('= 2. Click the magic login link =');
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console.info('= 3. Check back here for deets =');
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console.info('= =');
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console.info('==================================');
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console.info();
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}
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// TODO Check undefined vs false for greenlock config
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var remote = require('../');
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state.handlers = {
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grant: function (grants) {
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console.info("");
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console.info("Connect to your device by any of the following means:");
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console.info("");
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grants.forEach(function (arr) {
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if ('https' === arr[0]) {
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if (!state.servernames[arr[1]]) {
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state.servernames[arr[1]] = {};
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}
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} else if ('tcp' === arr[0]) {
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if (!state.ports[arr[2]]) {
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state.ports[arr[2]] = {};
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}
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}
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if ('ssh+https' === arr[0]) {
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console.info("SSH+HTTPS");
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} else if ('ssh' === arr[0]) {
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console.info("SSH");
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} else if ('tcp' === arr[0]) {
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console.info("TCP");
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} else if ('https' === arr[0]) {
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console.info("HTTPS");
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}
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console.info('\t' + arr[0] + '://' + arr[1] + (arr[2] ? (':' + arr[2]) : ''));
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if ('ssh+https' === arr[0]) {
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console.info("\tex: ssh -o ProxyCommand='openssl s_client -connect %h:%p -quiet' " + arr[1] + " -p 443\n");
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} else if ('ssh' === arr[0]) {
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console.info("\tex: ssh " + arr[1] + " -p " + arr[2] + "\n");
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} else if ('tcp' === arr[0]) {
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console.info("\tex: netcat " + arr[1] + " " + arr[2] + "\n");
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} else if ('https' === arr[0]) {
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console.info("\tex: curl https://" + arr[1] + "\n");
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}
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});
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}
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, access_token: function (opts) {
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console.info("Updating '" + tokenpath + "' with new token:");
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try {
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require('fs').writeFileSync(tokenpath, opts.jwt);
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} catch (e) {
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console.error("Token not saved:");
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console.error(e);
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}
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}
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};
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state.greenlockConfig = {
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version: state.greenlock.version || 'draft-11'
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, server: state.greenlock.server || 'https://acme-v02.api.letsencrypt.org/directory'
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, communityMember: state.greenlock.communityMember || state.config.communityMember
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, telemetry: state.greenlock.telemetry || state.config.telemetry
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, configDir: state.greenlock.configDir || path.resolve(__dirname, '..', 'etc/acme/')
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// TODO, store: require(state.greenlock.store.name || 'le-store-certbot').create(state.greenlock.store.options || {})
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, approveDomains: function (opts, certs, cb) {
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// Certs being renewed are listed in certs.altnames
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if (certs) {
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opts.domains = certs.altnames;
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cb(null, { options: opts, certs: certs });
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return;
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}
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// by virtue of the fact that it's being tunneled through a
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// trusted source that is already checking, we're good
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//if (-1 !== state.config.servernames.indexOf(opts.domains[0])) {
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opts.email = state.greenlock.email || state.config.email;
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opts.agreeTos = state.greenlock.agree || state.config.agreeTos;
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cb(null, { options: opts, certs: certs });
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return;
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//}
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//cb(new Error("servername not found in allowed list"));
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}
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};
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state.insecure = state.config.relay_ignore_invalid_certificates;
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// { relay, config, servernames, ports, sortingHat, net, insecure, token, handlers, greenlockConfig }
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var tun = remote.connect({
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relay: state.relay
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, config: state.config
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, sortingHat: state.sortingHat
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, net: state.net
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, insecure: state.insecure
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, token: state.token
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, servernames: state.servernames
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, ports: state.ports
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, handlers: state.handlers
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, greenlockConfig: state.greenlockConfig
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});
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return tun;
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}
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function rawTunnel() {
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if (state.config.disable || !state.config.relay || !(state.config.token || state.config.agreeTos)) {
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return;
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}
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state.relay = state.config.relay;
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if (!state.relay) {
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throw new Error("'" + state._confpath + "' is missing 'relay'");
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}
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/*
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if (!(state.config.secret || state.config.token)) {
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console.error("You must use --secret or --token with --relay");
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process.exit(1);
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return;
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}
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*/
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var location = url.parse(state.relay);
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if (!location.protocol || /\./.test(location.protocol)) {
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state.relay = 'wss://' + state.relay;
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location = url.parse(state.relay);
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}
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var aud = location.hostname + (location.port ? ':' + location.port : '');
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state.relay = location.protocol + '//' + aud;
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if (!state.config.token && state.config.secret) {
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var jwt = require('jsonwebtoken');
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var tokenData = {
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domains: Object.keys(state.config.servernames || {}).filter(function (name) { return /\./.test(name); })
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, aud: aud
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, iss: Math.round(Date.now() / 1000)
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};
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state.token = jwt.sign(tokenData, state.config.secret);
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}
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state.token = state.token || state.config.token;
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// TODO sign token with own private key, including public key and thumbprint
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// (much like ACME JOSE account)
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return connectTunnel();
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}
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require('fs').readFile(confpath, 'utf8', parseConfig);
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}());
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