1752 lines
54 KiB
JavaScript
Executable File
1752 lines
54 KiB
JavaScript
Executable File
#!/usr/bin/env node
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(function () {
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'use strict';
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var PromiseA;
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try {
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PromiseA = require('bluebird');
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} catch(e) {
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PromiseA = global.Promise;
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}
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var pkg = require('../package.json');
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var Keypairs = require('keypairs');
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var crypto = require('crypto');
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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 fs = require('fs');
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var fsp = fs.promises;
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var urequest = require('@root/request');
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var urequestAsync = require('util').promisify(urequest);
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var common = require('../lib/cli-common.js');
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var http = require('http');
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var TOML = require('toml');
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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 TPLS = TOML.parse(fs.readFileSync(path.join(__dirname, "../lib/en-us.toml"), 'utf8'));
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var startTime = Date.now();
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var connectTimes = [];
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var isConnected = false;
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var eggspress = require('../lib/eggspress.js');
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var keypairs = require('keypairs');
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var KEYEXT = '.key.jwk.json';
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var PUBEXT = '.pub.jwk.json';
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var TelebitRemote = require('../lib/daemon/index.js').TelebitRemote;
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var state = { homedir: os.homedir(), servernames: {}, ports: {}, keepAlive: { state: false } };
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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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var cancelUpdater = require('../lib/updater')(pkg);
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function help() {
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console.info(TPLS.daemon.help.main.replace(/{version}/g, pkg.version));
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}
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var verstr = [ pkg.name + ' daemon v' + pkg.version ];
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if (-1 === confIndex) {
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// We have two possible valid paths if no --config is given (i.e. run from an npm-only install)
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// * {install}/etc/telebitd.yml
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// * ~/.config/telebit/telebitd.yml
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// We'll asume the later since the installers include --config in the system launcher script
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confpath = common.DEFAULT_CONFIG_PATH;
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verstr.push('(--config "' + confpath + '")');
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}
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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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state._confpath = confpath;
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var keystore = require('../lib/keystore.js').create({
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name: "Telebit Daemon"
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, configDir: path.basename(confpath)
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});
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var controlServer;
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var myRemote;
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function getServername(servernames, sub) {
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if (state.servernames[sub]) {
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return sub;
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}
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var names = Object.keys(servernames).map(function (servername) {
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if ('*.' === servername.slice(0,2)) {
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return servername;
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}
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return '*.' + servername;
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}).sort(function (a, b) {
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return b.length - a.length;
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});
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return names.filter(function (pattern) {
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// '.example.com' = '*.example.com'.split(1)
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var subPiece = pattern.slice(1);
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// '.com' = 'sub.example.com'.slice(-4)
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// '.example.com' = 'sub.example.com'.slice(-12)
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if (subPiece === sub.slice(-subPiece.length)) {
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return subPiece;
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}
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})[0];
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}
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/*global Promise*/
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var _savingConfig = Promise.resolve();
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function saveConfig(cb) {
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// simple sequencing chain so that write corruption is not possible
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_savingConfig = _savingConfig.then(function () {
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return fsp.writeFile(confpath, YAML.safeDump(snakeCopy(state.config))).then(function () {
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try {
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cb();
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} catch(e) {
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console.error(e.stack);
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process.exit(47);
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}
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}).catch(cb);
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});
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}
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var controllers = {};
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controllers.http = function (req, res) {
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function getAppname(pathname) {
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// port number
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if (String(pathname) === String(parseInt(pathname, 10))) {
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return String(pathname);
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}
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var paths = pathname.split(/[\\\/\:]/);
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// rid trailing slash(es)
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while (!paths[paths.length -1]) {
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paths.pop();
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}
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var name = paths.pop();
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name = path.basename(name, path.extname(name));
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name = name.replace(/\./, '-').replace(/-+/, '-');
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return name;
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}
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function assign(target, handler, indexes) {
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target.handler = handler;
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if (indexes) {
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target.indexes = true;
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} else {
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delete target.indexes;
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}
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}
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if (!req.body) {
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res.statusCode = 422;
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res.send({"error":{"message":"module \'http\' needs some arguments"}});
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return;
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}
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var active = true;
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var portOrPath = req.body.handler || req.body[0];
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var subdomain = req.body.name || req.body[1];
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var indexes = req.body.indexes;
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var remoteHost;
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if (!portOrPath) {
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res.statusCode = 422;
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res.send({ error: { message: "module 'http' needs port or path" } });
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return;
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}
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var appname = getAppname(portOrPath);
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// Assign an FQDN to brief subdomains
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// ex: foo => foo.rando.telebit.cloud
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if (subdomain && !/\./.test(subdomain)) {
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Object.keys(state.servernames).some(function (key) {
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if (state.servernames[key].wildcard) {
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subdomain += '.' + key;
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}
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});
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}
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if ('none' === portOrPath || 'none' === subdomain) {
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// ~/telebit http none // turn off all
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// ~/telebit http none none // (same as above)
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// ~/telebit http 3000 none // turn off this handler
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// ~/telebit http none sub.example.com // turn off this subdomain
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// ~/telebit http none sub // TODO
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Object.keys(state.servernames).forEach(function (key) {
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if ('none' === portOrPath && 'none' === subdomain) {
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delete state.servernames[key].handler;
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return;
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}
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if (state.servernames[key].handler === portOrPath) {
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delete state.servernames[key].handler;
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return;
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}
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if (!subdomain || key === subdomain) {
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if (state.servernames[key].sub) {
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delete state.servernames[key];
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} else {
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delete state.servernames[key].handler;
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}
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return;
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}
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});
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if (state.servernames[subdomain]) {
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// TODO remove all non-essential keys
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delete state.servernames[subdomain].handler;
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if (state.servernames[subdomain].sub) {
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delete state.servernames[subdomain];
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}
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}
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remoteHost = 'none';
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} else if (subdomain && 'none' !== subdomain) {
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// use a subdomain with this handler
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var handlerName = getServername(state.servernames, subdomain);
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if (!handlerName) {
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active = false;
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}
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if (!state.servernames[subdomain]) {
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state.servernames[subdomain] = { sub: true };
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}
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if ('none' === portOrPath) {
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delete state.servernames[subdomain].handler;
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} else {
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assign(state.servernames[subdomain], portOrPath, indexes);
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}
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remoteHost = subdomain;
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} else {
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// just replace the default domain
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if (!Object.keys(state.servernames).sort(function (a, b) {
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return b.length - a.length;
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}).some(function (key) {
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if (state.servernames[key].handler === appname) {
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// example.com.handler: 3000 // already set
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remoteHost = key;
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return true;
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}
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if (state.servernames[key].wildcard) {
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//var prefix = appname + '.' + key;
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var prefix = key;
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if (!state.servernames[prefix]) {
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state.servernames[prefix] = { sub: undefined };
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}
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assign(state.servernames[prefix], portOrPath, indexes);
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remoteHost = prefix;
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return true;
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}
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})) {
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Object.keys(state.servernames).some(function (key) {
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//var prefix = appname + '.' + key;
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var prefix = key;
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assign(state.servernames[key], portOrPath, indexes);
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remoteHost = prefix;
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return true;
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});
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}
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}
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state.config.servernames = state.servernames;
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saveConfig(function (err) {
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res.send({
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success: true
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, active: active
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, remote: remoteHost
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, local: portOrPath
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, saved: !err
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, module: 'http'
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});
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});
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};
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controllers.tcp = function (req, res) {
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if (!req.body) {
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res.statusCode = 422;
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res.send({ error: { message: "module 'tcp' needs more arguments" } });
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return;
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}
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var active;
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var remotePort = req.body[1];
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var portOrPath = req.body[0];
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// portnum
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if (remotePort) {
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if (!state.ports[remotePort]) {
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active = false;
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} else {
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// forward-to port-or-module
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// TODO with the connect event bug fixed, we should now be able to send files over tcp
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state.ports[remotePort].handler = portOrPath;
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}
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} else {
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if (!Object.keys(state.ports).some(function (key) {
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if (!state.ports[key].handler) {
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state.ports[key].handler = portOrPath;
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remotePort = key;
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return true;
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}
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})) {
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Object.keys(state.ports).some(function (key) {
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state.ports[key].handler = portOrPath;
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remotePort = key;
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return true;
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});
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}
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}
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state.config.ports = state.ports;
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saveConfig(function (err) {
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res.send({
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success: true
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, active: active
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, remote: remotePort
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, local: portOrPath
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, saved: !err
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, module: 'tcp'
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});
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});
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};
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controllers.ssh = function (req, res) {
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if (!req.body) {
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res.statusCode = 422;
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res.send({"error":{"message":"module 'ssh' needs more arguments"}});
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return;
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}
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function sshSuccess() {
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//state.config.sshAuto = state.sshAuto;
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saveConfig(function (err) {
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var local = state.config.sshAuto;
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if (false !== local && !local) {
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local = 22;
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}
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res.send({
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success: true
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, active: true
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, remote: Object.keys(state.config.ports)[0]
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, local: local
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, saved: !err
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, module: 'ssh'
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});
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});
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}
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var rawSshAuto = req.body.port || req.body[0];
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var sshAuto = rawSshAuto;
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if (-1 !== [ -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.send({ error: { message: "bad ssh_auto option '" + rawSshAuto + "'" } });
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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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};
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controllers.relay = function (req, res) {
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if (!req.body) {
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res.statusCode = 422;
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res.send({"error":{"message":"module \'relay\' needs more arguments"}});
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return;
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}
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return urequestAsync(req.body).then(function (resp) {
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resp = resp.toJSON();
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res.send(resp);
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});
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};
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controllers._nonces = {};
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controllers._requireNonce = function (req, res, next) {
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var nonce = req.jws && req.jws.header && req.jws.header.nonce;
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var active = (Date.now() - controllers._nonces[nonce]) < (4 * 60 * 60 * 1000);
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if (!active) {
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// TODO proper headers and error message
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res.send({ "error": "invalid or expired nonce", "error_code": "ENONCE" });
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return;
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}
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delete controllers._nonces[nonce];
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controllers._issueNonce(req, res);
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next();
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};
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controllers._issueNonce = function (req, res) {
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var nonce = toUrlSafe(crypto.randomBytes(16).toString('base64'));
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// TODO associate with a TLS session
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controllers._nonces[nonce] = Date.now();
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res.setHeader("Replay-Nonce", nonce);
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return nonce;
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};
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controllers.newNonce = function (req, res) {
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res.statusCode = 200;
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res.setHeader("Cache-Control", "max-age=0, no-cache, no-store");
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// TODO
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//res.setHeader("Date", "Sun, 10 Mar 2019 08:04:45 GMT");
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// is this the expiration of the nonce itself? methinks maybe so
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//res.setHeader("Expires", "Sun, 10 Mar 2019 08:04:45 GMT");
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// TODO use one of the registered domains
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//var indexUrl = "https://acme-staging-v02.api.letsencrypt.org/index"
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var port = (state.config.ipc && state.config.ipc.port || state._ipc.port || undefined);
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var indexUrl = "http://localhost:" + port + "/index";
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res.setHeader("Link", "<" + indexUrl + ">;rel=\"index\"");
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res.setHeader("Cache-Control", "max-age=0, no-cache, no-store");
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res.setHeader("Pragma", "no-cache");
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//res.setHeader("Strict-Transport-Security", "max-age=604800");
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res.setHeader("X-Frame-Options", "DENY");
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controllers._issueNonce(req, res);
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res.end("");
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};
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controllers.newAccount = function (req, res) {
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controllers._requireNonce(req, res, function () {
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// TODO clean up error messages to be similar to ACME
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// check if there's a public key
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if (!req.jws || !req.jws.header.jwk) {
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res.statusCode = 422;
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res.send({ error: { message: "jws body was not present or could not be validated" } });
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return;
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}
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// TODO mx record email validation
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if (!Array.isArray(req.body.contact) || !req.body.contact.length && '127.0.0.1' !== req.connection.remoteAddress) {
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// req.body.contact: [ 'mailto:email' ]
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res.statusCode = 422;
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res.send({ error: { message: "jws signed payload should contain a valid mailto:email in the contact array" } });
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return;
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}
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if (!req.body.termsOfServiceAgreed) {
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// req.body.termsOfServiceAgreed: true
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res.statusCode = 422;
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res.send({ error: { message: "jws signed payload should have termsOfServiceAgreed: true" } });
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return;
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}
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// We verify here regardless of whether or not it was verified before,
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// because it needs to be signed by the presenter of the public key,
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// not just a trusted key
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return verifyJws(req.jws.header.jwk, req.jws).then(function (verified) {
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if (!verified) {
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res.statusCode = 422;
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res.send({ error: { message: "jws body failed verification" } });
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return;
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}
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var jwk = req.jws.header.jwk;
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return keypairs.thumbprint({ jwk: jwk }).then(function (thumb) {
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// Note: we can get any number of account requests
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// and these need to be stored for some space of time
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// to await verification.
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// we'll have to expire them somehow and prevent DoS
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// check if this account already exists
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var account;
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DB.accounts.some(function (acc) {
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// TODO calculate thumbprint from jwk
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// find a key with matching jwk
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if (acc.thumb === thumb) {
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account = acc;
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return true;
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}
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// TODO ACME requires kid to be the account URL (STUPID!!!)
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// rather than the key id (as decided by the key issuer)
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// not sure if it's necessary to handle it that way though
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});
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var myBaseUrl = (req.connection.encrypted ? 'https' : 'http') + '://' + req.headers.host;
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if (!account) {
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// fail if onlyReturnExisting is not false
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if (req.body.onlyReturnExisting) {
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res.statusCode = 422;
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res.send({ error: { message: "onlyReturnExisting is set, so there's nothing to do" } });
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return;
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}
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res.statusCode = 201;
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account = {};
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account._id = toUrlSafe(crypto.randomBytes(16).toString('base64'));
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// TODO be better about this
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account.location = myBaseUrl + '/acme/accounts/' + account._id;
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account.thumb = thumb;
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account.pub = jwk;
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account.contact = req.body.contact;
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account.useragent = req.headers["user-agent"];
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DB.accounts.push(account);
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state.config.accounts = DB.accounts;
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saveConfig(function () {});
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}
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var result = {
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status: 'valid'
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, contact: account.contact // [ "mailto:john.doe@gmail.com" ],
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, orders: account.location + '/orders'
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// optional / off-spec
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, id: account._id
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, jwk: account.pub
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/*
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// I'm not sure if we have the real IP through telebit's network wrapper at this point
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// TODO we also need to set X-Forwarded-Addr as a proxy
|
|
"initialIp": req.connection.remoteAddress, //"128.187.116.28",
|
|
"createdAt": (new Date()).toISOString(), // "2018-04-17T21:29:10.833305103Z",
|
|
*/
|
|
};
|
|
res.setHeader('Location', account.location);
|
|
res.send(result);
|
|
/*
|
|
Cache-Control: max-age=0, no-cache, no-store
|
|
Content-Type: application/json
|
|
Expires: Tue, 17 Apr 2018 21:29:10 GMT
|
|
Link: <https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf>;rel="terms-of-service"
|
|
Location: https://acme-staging-v02.api.letsencrypt.org/acme/acct/5937234
|
|
Pragma: no-cache
|
|
Replay-nonce: DKxX61imF38y_qkKvVcnWyo9oxQlHll0t9dMwGbkcxw
|
|
*/
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
function jsonEggspress(req, res, next) {
|
|
/*
|
|
var opts = url.parse(req.url, true);
|
|
if (false && opts.query._body) {
|
|
try {
|
|
req.body = JSON.parse(decodeURIComponent(opts.query._body, true));
|
|
} catch(e) {
|
|
res.statusCode = 500;
|
|
res.end('{"error":{"message":"?_body={{bad_format}}"}}');
|
|
return;
|
|
}
|
|
}
|
|
*/
|
|
|
|
var hasLength = req.headers['content-length'] > 0;
|
|
if (!hasLength && !req.headers['content-type']) {
|
|
next();
|
|
return;
|
|
}
|
|
|
|
var body = '';
|
|
req.on('readable', function () {
|
|
var data;
|
|
while (true) {
|
|
data = req.read();
|
|
if (!data) { break; }
|
|
body += data.toString();
|
|
}
|
|
});
|
|
req.on('end', function () {
|
|
try {
|
|
req.body = JSON.parse(body);
|
|
} catch(e) {
|
|
res.statusCode = 400;
|
|
res.send({"error":{"message":"POST body is not valid json"}});
|
|
return;
|
|
}
|
|
next();
|
|
});
|
|
}
|
|
|
|
function decodeJwt(jwt) {
|
|
var parts = jwt.split('.');
|
|
var jws = {
|
|
protected: parts[0]
|
|
, payload: parts[0]
|
|
, signature: parts[2] //Buffer.from(parts[2], 'base64')
|
|
};
|
|
jws.header = JSON.parse(Buffer.from(jws.protected, 'base64'));
|
|
jws.claims = JSON.parse(Buffer.from(jws.payload, 'base64'));
|
|
return jws;
|
|
}
|
|
function jwtEggspress(req, res, next) {
|
|
var jwt = (req.headers.authorization||'').replace(/Bearer /i, '');
|
|
if (!jwt) { next(); return; }
|
|
|
|
try {
|
|
req.jwt = decodeJwt(jwt);
|
|
} catch(e) {
|
|
// ignore
|
|
next();
|
|
return;
|
|
}
|
|
if (!req.jwt.header.kid) {
|
|
res.send({ error: { message: "JWT must include a SHA thumbprint as the 'kid' (key id)" } });
|
|
return;
|
|
}
|
|
|
|
// TODO verify if possible
|
|
console.warn("[warn] JWT is not verified yet");
|
|
// A failed JWS should cause a failed JWT
|
|
if (false !== req.trusted) {
|
|
req.trusted = true;
|
|
}
|
|
next();
|
|
}
|
|
|
|
// TODO switch to Keypairs.js / Keyfetch.js
|
|
function verifyJws(jwk, jws) {
|
|
return keypairs.export({ jwk: jwk }).then(function (pem) {
|
|
var alg = 'SHA' + jws.header.alg.replace(/[^\d]+/i, '');
|
|
var sig = ecdsaAsn1SigToJwtSig(jws.header.alg, jws.signature);
|
|
return crypto
|
|
.createVerify(alg)
|
|
.update(jws.protected + '.' + jws.payload)
|
|
.verify(pem, sig, 'base64');
|
|
});
|
|
}
|
|
|
|
function jwsEggspress(req, res, next) {
|
|
// Check to see if this looks like a JWS
|
|
// TODO check header application/jose+json ??
|
|
if (!req.body || !(req.body.protected && req.body.payload && req.body.signature)) {
|
|
next();
|
|
return;
|
|
}
|
|
|
|
// Decode it a bit
|
|
req.jws = req.body;
|
|
req.jws.header = JSON.parse(Buffer.from(req.jws.protected, 'base64'));
|
|
req.body = Buffer.from(req.jws.payload, 'base64');
|
|
if ('{'.charCodeAt(0) === req.body[0] || '['.charCodeAt(0) === req.body[0]) {
|
|
req.body = JSON.parse(req.body);
|
|
}
|
|
|
|
var ua = req.headers['user-agent'];
|
|
var trusted = false;
|
|
var vjwk;
|
|
var pubs;
|
|
var kid = req.jws.header.kid;
|
|
var p = Promise.resolve();
|
|
if (!kid && !req.jws.header.jwk) {
|
|
res.send({ error: { message: "jws protected header must include either 'kid' or 'jwk'" } });
|
|
return;
|
|
}
|
|
if (req.jws.header.jwk) {
|
|
if (kid) {
|
|
res.send({ error: { message: "jws protected header must not include both 'kid' and 'jwk'" } });
|
|
return;
|
|
}
|
|
kid = req.jws.header.jwk.kid;
|
|
p = Keypairs.thumbprint({ jwk: req.jws.header.jwk }).then(function (thumb) {
|
|
if (kid && kid !== thumb) {
|
|
res.send({ error: { message: "jwk included 'kid' for key id, but it did not match the key's thumbprint" } });
|
|
return;
|
|
}
|
|
kid = thumb;
|
|
req.jws.header.jwk.kid = thumb;
|
|
});
|
|
}
|
|
|
|
// Check if this is a key we already trust
|
|
DB.pubs.some(function (jwk) {
|
|
if (jwk.kid === kid) {
|
|
trusted = true;
|
|
vjwk = jwk;
|
|
return true;
|
|
}
|
|
});
|
|
|
|
// Check for CLI or Browser User-Agent
|
|
// (both should connect as part of setup)
|
|
if (/Telebit/i.test(ua) && !/Mozilla/i.test(ua)) {
|
|
pubs = DB.pubs.filter(function (jwk) {
|
|
if (/Telebit/i.test(jwk.useragent) && !/Mozilla/i.test(jwk.useragent)) {
|
|
return true;
|
|
}
|
|
});
|
|
} else {
|
|
pubs = DB.pubs.filter(function (jwk) {
|
|
if (!/Telebit/i.test(jwk.useragent) || /Mozilla/i.test(jwk.useragent)) {
|
|
return true;
|
|
}
|
|
});
|
|
}
|
|
|
|
p.then(function () {
|
|
// Check if there aren't any keys that we trust
|
|
// and this has signed itself, then make it a key we trust
|
|
// (TODO: move this all to the new account function)
|
|
if (0 === pubs.length) { trusted = true; }
|
|
if (!vjwk) { vjwk = req.jws.header.jwk; }
|
|
// Don't verify if it can't be verified
|
|
if (!vjwk) { return null; }
|
|
|
|
// Run the verification
|
|
return p.then(function () {
|
|
return verifyJws(vjwk, req.jws).then(function (verified) {
|
|
if (true !== verified) { return null; }
|
|
|
|
// Mark as verified
|
|
req.jws.verified = verified;
|
|
req.jws.trusted = trusted;
|
|
vjwk.useragent = ua;
|
|
|
|
// (double check) DO NOT save if there are existing pubs
|
|
if (0 !== pubs.length) { return null; }
|
|
|
|
DB.pubs.push(vjwk);
|
|
return keystore.set(vjwk.kid + PUBEXT, vjwk);
|
|
});
|
|
});
|
|
}).then(function () {
|
|
// a failed JWT should cause a failed JWS
|
|
if (false !== req.trusted) {
|
|
req.trusted = req.jws.trusted;
|
|
}
|
|
next();
|
|
});
|
|
}
|
|
|
|
function handleApi() {
|
|
var app = eggspress();
|
|
|
|
app.use('/', jwtEggspress);
|
|
app.use('/', jsonEggspress);
|
|
app.use('/', jwsEggspress);
|
|
app.use('/', function (req, res, next) {
|
|
if (req.jwt) {
|
|
console.log('jwt', req.jwt);
|
|
} else if (req.jws) {
|
|
console.log('jws', req.jws);
|
|
console.log('body', req.body);
|
|
}
|
|
next();
|
|
});
|
|
|
|
function listSuccess(req, res) {
|
|
var dumpy = {
|
|
servernames: state.servernames
|
|
, ports: state.ports
|
|
, ssh: state.config.sshAuto || 'disabled'
|
|
, code: 'CONFIG'
|
|
};
|
|
if (state.otp) {
|
|
dumpy.device_pair_code = state.otp;
|
|
}
|
|
|
|
if (state._can_pair && state.config.email && !state.token) {
|
|
dumpy.code = "AWAIT_AUTH";
|
|
dumpy.message = "Please run 'telebit init' to authenticate.";
|
|
}
|
|
|
|
res.send(dumpy);
|
|
}
|
|
|
|
function getConfigOnly(req, res) {
|
|
var resp = JSON.parse(JSON.stringify(state.config));
|
|
resp.version = pkg.version;
|
|
resp._otp = state.otp;
|
|
res.send(resp);
|
|
}
|
|
|
|
//
|
|
// without proper config
|
|
//
|
|
function saveAndReport(req, res) {
|
|
console.log('[DEBUG] saveAndReport config write', confpath);
|
|
console.log(YAML.safeDump(snakeCopy(state.config)));
|
|
fs.writeFile(confpath, YAML.safeDump(snakeCopy(state.config)), function (err) {
|
|
if (err) {
|
|
res.statusCode = 500;
|
|
res.send({"error":{"message":"Could not save config file after init: " + err.message.replace(/"/g, "'")
|
|
+ ".\nPerhaps check that the file exists and your user has permissions to write it?"}});
|
|
return;
|
|
}
|
|
|
|
listSuccess();
|
|
});
|
|
}
|
|
|
|
function initOrConfig(req, res) {
|
|
var conf = {};
|
|
if (!req.body) {
|
|
res.statusCode = 422;
|
|
res.send({"error":{"message":"module 'init' needs more arguments"}});
|
|
return;
|
|
}
|
|
|
|
if (Array.isArray(req.body)) {
|
|
// relay, email, agree_tos, servernames, ports
|
|
//
|
|
req.body.forEach(function (opt) {
|
|
var parts = opt.split(/:/);
|
|
if ('true' === parts[1]) {
|
|
parts[1] = true;
|
|
} else if ('false' === parts[1]) {
|
|
parts[1] = false;
|
|
} else if ('null' === parts[1]) {
|
|
parts[1] = null;
|
|
} else if ('undefined' === parts[1]) {
|
|
parts[1] = undefined;
|
|
}
|
|
conf[parts[0]] = parts[1];
|
|
});
|
|
} else {
|
|
conf = req.body;
|
|
}
|
|
|
|
conf = camelCopy(conf);
|
|
|
|
// TODO deep merge
|
|
// greenlock config
|
|
if (!state.config.greenlock) { state.config.greenlock = {}; }
|
|
if (conf.greenlock) {
|
|
if ('undefined' !== typeof conf.greenlock.agree) {
|
|
state.config.greenlock.agree = conf.greenlock.agree;
|
|
}
|
|
if (conf.greenlock.server) { state.config.greenlock.server = conf.greenlock.server; }
|
|
if (conf.greenlock.version) { state.config.greenlock.version = conf.greenlock.version; }
|
|
}
|
|
|
|
// main config
|
|
if (conf.email) { state.config.email = conf.email; }
|
|
if (conf.relay) { state.config.relay = conf.relay; }
|
|
if (conf.token) { state.config.token = conf.token; }
|
|
if (conf.secret) { state.config.secret = conf.secret; }
|
|
if ('undefined' !== typeof conf.agreeTos) {
|
|
state.config.agreeTos = conf.agreeTos;
|
|
}
|
|
|
|
// to state
|
|
if (conf.pretoken) { state.pretoken = conf.pretoken; }
|
|
if (conf._otp) {
|
|
state.otp = conf._otp; // TODO should this only be done on the client side?
|
|
delete conf._otp;
|
|
}
|
|
|
|
console.log();
|
|
console.log('conf.token', typeof conf.token, conf.token);
|
|
console.log('state.config.token', typeof state.config.token, state.config.token);
|
|
|
|
if (state.secret) { console.log('state.secret'); state.token = common.signToken(state); }
|
|
if (!state.token) { console.log('!state.token'); state.token = conf._token; }
|
|
|
|
console.log();
|
|
console.log('JSON.stringify(conf)');
|
|
console.log(JSON.stringify(conf));
|
|
console.log();
|
|
console.log('JSON.stringify(state)');
|
|
console.log(JSON.stringify(state));
|
|
console.log();
|
|
if ('undefined' !== typeof conf.newsletter) {
|
|
state.config.newsletter = conf.newsletter;
|
|
}
|
|
if ('undefined' !== typeof conf.communityMember
|
|
|| 'undefined' !== typeof conf.community_member) {
|
|
state.config.communityMember = conf.communityMember || conf.community_member;
|
|
}
|
|
if ('undefined' !== typeof conf.telemetry) {
|
|
state.config.telemetry = conf.telemetry;
|
|
}
|
|
if (conf._servernames) {
|
|
(conf._servernames||'').split(/,/g).forEach(function (key) {
|
|
if (!state.config.servernames[key]) {
|
|
state.config.servernames[key] = { sub: undefined };
|
|
}
|
|
});
|
|
}
|
|
if (conf._ports) {
|
|
(conf._ports||'').split(/,/g).forEach(function (key) {
|
|
if (!state.config.ports[key]) {
|
|
state.config.ports[key] = {};
|
|
}
|
|
});
|
|
}
|
|
|
|
if (!state.config.relay || !state.config.email || !state.config.agreeTos) {
|
|
console.warn('missing config');
|
|
res.statusCode = 400;
|
|
|
|
res.send({
|
|
error: {
|
|
code: "E_INIT"
|
|
, message: "Missing important config file params"
|
|
, _params: JSON.stringify(conf)
|
|
, _config: JSON.stringify(state.config)
|
|
, _body: JSON.stringify(req.body)
|
|
}
|
|
});
|
|
return;
|
|
}
|
|
|
|
// init also means enable
|
|
delete state.config.disable;
|
|
safeStartTelebitRemote(true).then(saveAndReport).catch(handleError);
|
|
}
|
|
|
|
function restart(req, res) {
|
|
console.info("[telebitd.js] server closing...");
|
|
state.keepAlive.state = false;
|
|
if (myRemote) {
|
|
myRemote.end();
|
|
myRemote.on('end', respondAndClose);
|
|
// failsafe
|
|
setTimeout(function () {
|
|
console.info("[telebitd.js] closing too slowly, force quit");
|
|
respondAndClose();
|
|
}, 5 * 1000);
|
|
} else {
|
|
respondAndClose();
|
|
}
|
|
|
|
function respondAndClose() {
|
|
res.send({ success: true });
|
|
controlServer.close(function () {
|
|
console.info("[telebitd.js] server closed");
|
|
setTimeout(function () {
|
|
// system daemon will restart the process
|
|
process.exit(22); // use non-success exit code
|
|
}, 100);
|
|
});
|
|
}
|
|
}
|
|
|
|
function mustHaveValidConfig(req, res, next) {
|
|
//
|
|
// Check for proper config
|
|
//
|
|
if (state.config.relay && state.config.email && state.config.agreeTos) {
|
|
next();
|
|
return;
|
|
}
|
|
|
|
res.statusCode = 400;
|
|
res.send({
|
|
error: { code: "E_CONFIG", message: "Invalid config file. Please run 'telebit init'" }
|
|
});
|
|
}
|
|
|
|
function saveAndCommit(req, res) {
|
|
state.config.servernames = state.servernames;
|
|
state.config.ports = state.ports;
|
|
fs.writeFile(confpath, YAML.safeDump(snakeCopy(state.config)), function (err) {
|
|
if (err) {
|
|
res.statusCode = 500;
|
|
res.send({
|
|
"error":{"message":"Could not save config file. Perhaps you're not running as root?"}
|
|
});
|
|
return;
|
|
}
|
|
listSuccess();
|
|
});
|
|
}
|
|
|
|
function handleError(err, req, res) {
|
|
res.statusCode = 500;
|
|
res.send({
|
|
error: { message: err.message, code: err.code }
|
|
});
|
|
}
|
|
|
|
function enable(req, res) {
|
|
delete state.config.disable;// = undefined;
|
|
state.keepAlive.state = true;
|
|
|
|
fs.writeFile(confpath, YAML.safeDump(snakeCopy(state.config)), function (err) {
|
|
if (err) {
|
|
err.message = "Could not save config file. Perhaps you're user doesn't have permission?";
|
|
handleError(err, req, res);
|
|
return;
|
|
}
|
|
// TODO XXX myRemote.active
|
|
if (myRemote) {
|
|
listSuccess(req, res);
|
|
return;
|
|
}
|
|
safeStartTelebitRemote(true).then(listSuccess).catch(function () {
|
|
handleError(err, req, res);
|
|
});
|
|
});
|
|
}
|
|
|
|
function disable(req, res) {
|
|
state.config.disable = true;
|
|
state.keepAlive.state = false;
|
|
|
|
if (myRemote) { myRemote.end(); myRemote = null; }
|
|
fs.writeFile(confpath, YAML.safeDump(snakeCopy(state.config)), function (err) {
|
|
if (err) {
|
|
err.message = "Could not save config file. Perhaps you're user doesn't have permission?";
|
|
handleError(err);
|
|
return;
|
|
}
|
|
res.send({"success":true});
|
|
});
|
|
}
|
|
|
|
function getStatus(req, res) {
|
|
var now = Date.now();
|
|
require('../lib/ssh.js').checkSecurity().then(function (ssh) {
|
|
res.send(
|
|
{ module: 'status'
|
|
, version: pkg.version
|
|
, port: (state.config.ipc && state.config.ipc.port || state._ipc.port || undefined)
|
|
, enabled: !state.config.disable
|
|
, active: !!myRemote
|
|
, initialized: (state.config.relay && state.config.token && state.config.agreeTos) ? true : false
|
|
, connected: isConnected
|
|
//, proctime: Math.round(process.uptime() * 1000)
|
|
, uptime: now - startTime
|
|
, runtime: isConnected && connectTimes.length && (now - connectTimes[0]) || 0
|
|
, reconnects: connectTimes.length
|
|
, servernames: state.servernames
|
|
, ssh: state.config.sshAuto
|
|
, ssh_permit_root_login: ssh.permit_root_login
|
|
, ssh_password_authentication: ssh.password_authentication
|
|
, ssh_requests_password: ssh.requests_password
|
|
}
|
|
);
|
|
});
|
|
}
|
|
|
|
// TODO turn strings into regexes to match beginnings
|
|
app.get('/.well-known/openid-configuration', function (req, res) {
|
|
res.setHeader("Access-Control-Allow-Headers", "Content-Type");
|
|
res.setHeader("Access-Control-Allow-Origin", "*");
|
|
res.setHeader("Access-Control-Expose-Headers", "Link, Replay-Nonce, Location");
|
|
res.setHeader("Access-Control-Max-Age", "86400");
|
|
if ('OPTIONS' === req.method) { res.end(); return; }
|
|
res.send({
|
|
jwks_uri: 'http://localhost/.well-known/jwks.json'
|
|
, acme_uri: 'http://localhost/acme/directory'
|
|
});
|
|
});
|
|
app.use('/acme', function acmeCors(req, res, next) {
|
|
// Taken from New-Nonce
|
|
res.setHeader("Access-Control-Allow-Headers", "Content-Type");
|
|
res.setHeader("Access-Control-Allow-Origin", "*");
|
|
res.setHeader("Access-Control-Expose-Headers", "Link, Replay-Nonce, Location");
|
|
res.setHeader("Access-Control-Max-Age", "86400");
|
|
if ('OPTIONS' === req.method) { res.end(); return; }
|
|
next();
|
|
});
|
|
app.get('/acme/directory', function (req, res) {
|
|
var myBaseUrl = (req.connection.encrypted ? 'https' : 'http') + '://' + req.headers.host;
|
|
res.send({
|
|
'newNonce': '/acme/new-nonce'
|
|
, 'newAccount': '/acme/new-acct'
|
|
// TODO link to the terms that the user selects
|
|
, 'meta': { 'termsOfService': myBaseUrl + '/acme/terms.html' }
|
|
});
|
|
});
|
|
app.head('/acme/new-nonce', controllers.newNonce);
|
|
app.get('/acme/new-nonce', controllers.newNonce);
|
|
app.post('/acme/new-acct', controllers.newAccount);
|
|
function mustTrust(req, res, next) {
|
|
// TODO public routes should be explicitly marked
|
|
// trusted should be the default
|
|
if (!req.trusted) {
|
|
res.statusCode = 400;
|
|
res.send({"error":{"message": "this type of requests must be encoded as a jws payload"
|
|
+ " and signed by a trusted account holder"}});
|
|
return;
|
|
}
|
|
|
|
next();
|
|
}
|
|
app.use(/\b(relay)\b/, mustTrust, controllers.relay);
|
|
app.get(/\b(config)\b/, mustTrust, getConfigOnly);
|
|
app.use(/\b(init|config)\b/, mustTrust, initOrConfig);
|
|
app.use(/\b(restart)\b/, mustTrust, restart);
|
|
|
|
// Position is important with eggspress
|
|
// This should stay here, right before the other methods
|
|
app.use('/', mustHaveValidConfig);
|
|
|
|
//
|
|
// With proper config
|
|
//
|
|
app.use(/\b(http)\b/, mustTrust, controllers.http);
|
|
app.use(/\b(tcp)\b/, mustTrust, controllers.tcp);
|
|
app.use(/\b(save|commit)\b/, mustTrust, saveAndCommit);
|
|
app.use(/\b(ssh)\b/, mustTrust, controllers.ssh);
|
|
app.use(/\b(enable)\b/, mustTrust, enable);
|
|
app.use(/\b(disable)\b/, mustTrust, disable);
|
|
app.use(/\b(status)\b/, mustTrust, getStatus);
|
|
app.use(/\b(list)\b/, mustTrust, listSuccess);
|
|
app.use('/', function (req, res) {
|
|
res.send({"error":{"message":"unrecognized rpc: [" + req.method + "] " + req.url + "\n"
|
|
+ JSON.stringify(req.headers) + "\n"
|
|
+ JSON.stringify(req.body) + "\n"
|
|
}});
|
|
});
|
|
|
|
return app;
|
|
}
|
|
|
|
function serveControlsHelper() {
|
|
var app = eggspress();
|
|
var serveStatic = require('serve-static')(path.join(__dirname, '../lib/admin/'));
|
|
var apiHandler = handleApi();
|
|
|
|
app.use('/rpc/', apiHandler);
|
|
app.use('/api/', apiHandler);
|
|
app.use('/acme/', apiHandler);
|
|
app.use('/', serveStatic);
|
|
|
|
controlServer = http.createServer(app);
|
|
|
|
if (fs.existsSync(state._ipc.path)) {
|
|
fs.unlinkSync(state._ipc.path);
|
|
}
|
|
// mask is so that processes owned by other users
|
|
// can speak to this process, which is probably root-owned
|
|
var oldUmask = process.umask(0x0000);
|
|
var serverOpts = {
|
|
writableAll: true
|
|
, readableAll: true
|
|
, exclusive: false
|
|
};
|
|
if (!state.config.ipc) {
|
|
state.config.ipc = {};
|
|
}
|
|
if (!state.config.ipc.path) {
|
|
state.config.ipc.path = path.dirname(state._ipc.path);
|
|
}
|
|
require('mkdirp').sync(state.config.ipc.path);
|
|
if (!state.config.ipc.type) {
|
|
state.config.ipc.type = 'port';
|
|
}
|
|
var portFile = path.join(state.config.ipc.path, 'telebit.port');
|
|
if (fs.existsSync(portFile)) {
|
|
state._ipc.port = parseInt(fs.readFileSync(portFile, 'utf8').trim(), 10);
|
|
}
|
|
|
|
if ('socket' === state._ipc.type) {
|
|
require('mkdirp').sync(path.dirname(state._ipc.path));
|
|
}
|
|
// https://nodejs.org/api/net.html#net_server_listen_options_callback
|
|
// path is ignore if port is defined
|
|
// https://git.coolaj86.com/coolaj86/telebit.js/issues/23#issuecomment-326
|
|
if ('port' === state.config.ipc.type) {
|
|
serverOpts.host = 'localhost';
|
|
serverOpts.port = state._ipc.port || 0;
|
|
} else {
|
|
serverOpts.path = state._ipc.path;
|
|
}
|
|
controlServer.listen(serverOpts, function () {
|
|
process.umask(oldUmask);
|
|
var address = this.address();
|
|
if (address.port) {
|
|
common.setPort(state.config, address.port);
|
|
}
|
|
//console.log(this.address());
|
|
console.info("[info] Listening for commands on", address);
|
|
});
|
|
controlServer.on('error', function (err) {
|
|
if ('EADDRINUSE' === err.code) {
|
|
try {
|
|
fs.unlinkSync(portFile);
|
|
} catch(e) {
|
|
// nada
|
|
}
|
|
setTimeout(function () {
|
|
console.log("Could not start control server (%s), trying again...", err.code);
|
|
console.log(portFile);
|
|
console.log(serverOpts);
|
|
serveControlsHelper();
|
|
}, 1000);
|
|
return;
|
|
}
|
|
console.error('failed to start c&c server:', err);
|
|
});
|
|
}
|
|
|
|
function serveControls() {
|
|
serveControlsHelper();
|
|
|
|
if (state.config.disable) {
|
|
console.info("[info] starting disabled");
|
|
return;
|
|
}
|
|
|
|
// This will remain in a disconnect state and wait for an init
|
|
if (!(state.config.relay && (state.config.token || state.config.pretoken))) {
|
|
console.info("[info] waiting for init/authentication (missing relay and/or token)");
|
|
return;
|
|
}
|
|
|
|
console.info("[info] connecting with stored token");
|
|
return safeStartTelebitRemote().catch(function (err) {
|
|
// ignore, it'll keep looping anyway
|
|
console.warn("[debug] error that (supposedly) shouldn't matter:");
|
|
console.warn(err);
|
|
});
|
|
}
|
|
|
|
function parseConfig(err, text) {
|
|
|
|
function run() {
|
|
if (!state.config) {
|
|
state.config = {};
|
|
}
|
|
common._init(
|
|
state.config.root || path.join(os.homedir(), '.local/share/telebit') // || path.join(__dirname, '..')
|
|
, (state.config.root && path.join(state.config.root, 'etc')) || path.resolve(common.DEFAULT_CONFIG_PATH, '..')
|
|
);
|
|
state._ipc = common.pipename(state.config, true);
|
|
console.info('');
|
|
console.info(verstr.join(' '));
|
|
if (!state.config.sock) {
|
|
console.info('(' + state._ipc.comment + ': "' + state._ipc.path + '")');
|
|
}
|
|
console.info('');
|
|
state.token = state.token || state.config.token || token;
|
|
state.pretoken = state.pretoken || state.config.pretoken;
|
|
|
|
state._confpath = confpath;
|
|
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));
|
|
|
|
serveControls();
|
|
}
|
|
|
|
try {
|
|
state.config = JSON.parse(text || '{}');
|
|
} catch(e1) {
|
|
try {
|
|
state.config = YAML.safeLoad(text || '{}');
|
|
} catch(e2) {
|
|
console.error(e1.message);
|
|
console.error(e2.message);
|
|
process.exit(1);
|
|
return;
|
|
}
|
|
}
|
|
|
|
state.config = camelCopy(state.config || {}) || {};
|
|
DB.accounts = state.config.accounts || [];
|
|
|
|
run();
|
|
|
|
if ((err && 'ENOENT' === err.code) || !Object.keys(state.config).length) {
|
|
if (!err || 'ENOENT' === err.code) {
|
|
console.warn("Empty config file. Run 'telebit init' to configure.\n");
|
|
} else {
|
|
console.warn("Couldn't load config:\n\n\t" + err.message + "\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
function approveDomains(opts, certs, cb) {
|
|
// Even though it's being tunneled by a trusted source
|
|
// we need to make sure we don't get rate-limit spammed
|
|
// with wildcard domains
|
|
// TODO: finish implementing dynamic dns for wildcard certs
|
|
if (getServername(state.servernames, opts.domains[0])) {
|
|
opts.email = state.greenlockConf.email || state.config.email;
|
|
opts.agreeTos = state.greenlockConf.agree || state.greenlockConf.agreeTos || state.config.agreeTos;
|
|
cb(null, { options: opts, certs: certs });
|
|
return;
|
|
}
|
|
|
|
cb(new Error("servername not found in allowed list"));
|
|
}
|
|
|
|
function greenlockHelper(state) {
|
|
// TODO Check undefined vs false for greenlock config
|
|
state.greenlockConf = state.config.greenlock || {};
|
|
state.greenlockConfig = {
|
|
version: state.greenlockConf.version || 'draft-11'
|
|
, server: state.greenlockConf.server || 'https://acme-v02.api.letsencrypt.org/directory'
|
|
, communityMember: state.greenlockConf.communityMember || state.config.communityMember
|
|
, _communityPackage: 'telebit.js'
|
|
, telemetry: state.greenlockConf.telemetry || state.config.telemetry
|
|
, configDir: state.greenlockConf.configDir
|
|
|| (state.config.root && path.join(state.config.root, 'etc/acme'))
|
|
|| path.join(os.homedir(), '.config/telebit/acme')
|
|
// TODO, store: require(state.greenlockConf.store.name || 'le-store-certbot').create(state.greenlockConf.store.options || {})
|
|
, approveDomains: approveDomains
|
|
};
|
|
state.insecure = state.config.relay_ignore_invalid_certificates;
|
|
}
|
|
|
|
function promiseTimeout(t) {
|
|
return new PromiseA(function (resolve) {
|
|
setTimeout(resolve, t);
|
|
});
|
|
}
|
|
|
|
var promiseWss = PromiseA.promisify(function (state, fn) {
|
|
return common.api.wss(state, fn);
|
|
});
|
|
|
|
var trPromise;
|
|
function safeStartTelebitRemote(forceOn) {
|
|
// whatever is currently going will not restart
|
|
state.keepAlive.state = false;
|
|
if (trPromise && !forceOn) { return trPromise; }
|
|
|
|
// if something is running, this will kill it
|
|
// (TODO option to use known-good active instead of restarting)
|
|
// this won't restart either
|
|
trPromise = rawStartTelebitRemote(state.keepAlive);
|
|
trPromise.then(function () {
|
|
console.log("[debug] success on raw start, keepAlive = true");
|
|
state.keepAlive.state = true;
|
|
trPromise = null;
|
|
}).catch(function () {
|
|
console.log("[debug] failure on raw start, { keepAlive = true }");
|
|
// this will restart
|
|
state.keepAlive = { state: true };
|
|
trPromise = rawStartTelebitRemote(state.keepAlive);
|
|
trPromise.then(function () {
|
|
console.log("[debug] success on 2nd start keepAlive:", state.keepAlive.state);
|
|
trPromise = null;
|
|
}).catch(function () {
|
|
console.log("[debug] failure on 2nd start. keepAlive", state.keepAlive.state);
|
|
trPromise = null;
|
|
});
|
|
});
|
|
return trPromise;
|
|
}
|
|
|
|
function rawStartTelebitRemote(keepAlive) {
|
|
var err;
|
|
var exiting = false;
|
|
var localRemote = myRemote;
|
|
myRemote = null;
|
|
if (localRemote) { /*console.log('DEBUG destroy() existing');*/ localRemote.destroy(); }
|
|
|
|
function safeReload(delay) {
|
|
if (exiting) {
|
|
// return a junk promise as the prior call
|
|
// already passed flow-control to the next promise
|
|
// (this is a second or delayed error or close event)
|
|
return PromiseA.resolve();
|
|
}
|
|
exiting = true;
|
|
// TODO state.keepAlive?
|
|
return promiseTimeout(delay).then(function () {
|
|
return rawStartTelebitRemote(keepAlive);
|
|
});
|
|
}
|
|
|
|
if (state.config.disable) {
|
|
//console.log('DEBUG disabled or incapable');
|
|
err = new Error("connecting is disabled");
|
|
err.code = 'EDISABLED';
|
|
return PromiseA.reject(err);
|
|
}
|
|
|
|
if (!(state.config.token || state.config.agreeTos)) {
|
|
//console.log('DEBUG Must agreeTos to generate preauth');
|
|
err = new Error("Must either supply token (for auth) or agreeTos (for preauth)");
|
|
err.code = 'ENOAGREE';
|
|
return PromiseA.reject(err);
|
|
}
|
|
|
|
state.relay = state.config.relay;
|
|
if (!state.relay) {
|
|
//console.log('DEBUG no relay');
|
|
err = new Error("'" + state._confpath + "' is missing 'relay'");
|
|
err.code = 'ENORELAY';
|
|
return PromiseA.reject(err);
|
|
}
|
|
|
|
// TODO: we need some form of pre-authorization before connecting,
|
|
// otherwise we'll get disconnected pretty quickly
|
|
if (!(state.token || state.pretoken)) {
|
|
//console.log('DEBUG no token');
|
|
err = new Error("no jwt token or preauthorization");
|
|
err.code = 'ENOAUTH';
|
|
return PromiseA.reject(err);
|
|
}
|
|
|
|
return PromiseA.resolve().then(function () {
|
|
//console.log('DEBUG rawStartTelebitRemote');
|
|
|
|
function startHelper() {
|
|
//console.log('DEBUG startHelper');
|
|
greenlockHelper(state);
|
|
// Saves the token
|
|
// state.handlers.access_token({ jwt: token });
|
|
// Adds the token to the connection
|
|
// tun.append(token);
|
|
|
|
//console.log("[DEBUG] token", typeof token, token);
|
|
//state.sortingHat = state.config.sortingHat;
|
|
// { relay, config, servernames, ports, sortingHat, net, insecure, token, handlers, greenlockConfig }
|
|
|
|
return new PromiseA(function (myResolve, myReject) {
|
|
function reject(err) {
|
|
if (myReject) {
|
|
myReject(err);
|
|
myResolve = null;
|
|
myReject = null;
|
|
} else {
|
|
//console.log('DEBUG double rejection');
|
|
}
|
|
}
|
|
function resolve(val) {
|
|
//console.log('[DEBUG] pre-resolve');
|
|
if (myResolve) {
|
|
myResolve(val);
|
|
myResolve = null;
|
|
myReject = null;
|
|
} else {
|
|
//console.log('DEBUG double resolution');
|
|
}
|
|
}
|
|
|
|
function onConnect() {
|
|
isConnected = true;
|
|
connectTimes.unshift(Date.now());
|
|
console.info('[connect] relay established');
|
|
myRemote.removeListener('error', onConnectError);
|
|
myRemote.once('error', function (err) {
|
|
console.log("[debug] Error after connect.");
|
|
console.log(err);
|
|
if (!keepAlive.state) {
|
|
reject(err);
|
|
return;
|
|
}
|
|
retryLoop();
|
|
});
|
|
resolve(myRemote);
|
|
return;
|
|
}
|
|
|
|
function onConnectError(err) {
|
|
myRemote = null;
|
|
isConnected = false;
|
|
if (handleError(err, 'onConnectError')) {
|
|
if (!keepAlive.state) {
|
|
reject(err);
|
|
return;
|
|
}
|
|
safeReload(10 * 1000).then(resolve).catch(reject);
|
|
return;
|
|
}
|
|
console.error('[Error] onConnectError: no retry (possibly bad auth):');
|
|
console.error(err);
|
|
reject(err);
|
|
return;
|
|
}
|
|
|
|
function retryLoop() {
|
|
isConnected = false;
|
|
console.warn('[Warn] disconnected. Will retry?', keepAlive.state);
|
|
if (keepAlive.state) {
|
|
safeReload(10 * 1000).then(resolve).catch(reject);
|
|
}
|
|
}
|
|
|
|
myRemote = TelebitRemote.createConnection({
|
|
relay: state.relay
|
|
, wss: state.wss
|
|
, config: state.config
|
|
, otp: state.otp
|
|
, sortingHat: state.config.sortingHat
|
|
, net: state.net
|
|
, insecure: state.insecure
|
|
, token: state.token || state.pretoken // instance
|
|
, servernames: state.servernames
|
|
, ports: state.ports
|
|
, handlers: state.handlers
|
|
, greenlockConfig: state.greenlockConfig
|
|
}, onConnect);
|
|
|
|
myRemote.once('error', onConnectError);
|
|
myRemote.once('close', retryLoop);
|
|
myRemote.on('grant', state.handlers.grant);
|
|
myRemote.on('access_token', state.handlers.access_token);
|
|
});
|
|
}
|
|
|
|
if (state.wss) {
|
|
return startHelper();
|
|
}
|
|
|
|
function handleError(err, prefix) {
|
|
// Likely causes:
|
|
// * DNS lookup failed (no Internet)
|
|
// * Rejected (bad authn)
|
|
if ('ENOTFOUND' === err.code) {
|
|
// DNS issue, probably network is disconnected
|
|
err.message = [
|
|
'[warn] (' + prefix + '): DNS address not found.'
|
|
, ' Either the remote does not exist or local network is down or blocked.'
|
|
, ' You might check wifi, eth, paywall, etc.'
|
|
].join('\n');
|
|
if (keepAlive.error !== err.code) {
|
|
console.warn(err.message);
|
|
keepAlive.error = err.code;
|
|
console.warn("(retrying silently)");
|
|
}
|
|
return true;
|
|
} else if ('ECONNREFUSED' === err.code) {
|
|
// Server issue. If it's the development server, it's probably down
|
|
err.message = [
|
|
'[warn] onConnectError: Connection Refused.'
|
|
, ' Either the remote does not exist or local network is blocking it.'
|
|
, ' Is the relay service provider\'s website up? Did you make a typo?'
|
|
, ' Is there a local firewall or paywall? Might the relay be otherwise blocked?'
|
|
].join('\n');
|
|
if (keepAlive.error !== err.code) {
|
|
console.warn(err.message);
|
|
keepAlive.error = err.code;
|
|
console.warn("(retrying silently)");
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// get the wss url
|
|
function retryWssLoop(err) {
|
|
if (!keepAlive.state) {
|
|
console.log("[debug] error getting wss url:");
|
|
console.log(err);
|
|
return PromiseA.reject(err);
|
|
}
|
|
|
|
myRemote = null;
|
|
if (handleError(err, 'retryWssLoop')) {
|
|
// Always retry at this stage. It *is* a connectivity problem.
|
|
// Since the internet is disconnected, try again and again and again.
|
|
return safeReload(2 * 1000);
|
|
} else {
|
|
console.error("[error] retryWssLoop (will not retry):");
|
|
console.error(err.message);
|
|
return PromiseA.reject(err);
|
|
}
|
|
}
|
|
|
|
// It makes since for this to be in here because the server
|
|
// could be restarting to force a change of the metadata
|
|
return promiseWss(state).then(function (wss) {
|
|
state.wss = wss;
|
|
console.log("[debug] got wss url");
|
|
keepAlive.error = null;
|
|
return startHelper();
|
|
}).catch(retryWssLoop);
|
|
});
|
|
}
|
|
|
|
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]] = {};
|
|
}
|
|
state.servernames[arr[1]].wildcard = true;
|
|
} 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 -servername %h -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) {
|
|
if ('undefined' === opts.jwt || !opts.jwt) {
|
|
console.error("Granted empty access token... ??");
|
|
console.error(JSON.stringify(opts));
|
|
return;
|
|
}
|
|
state.token = opts.jwt || opts.access_token;
|
|
// TODO don't put token in config
|
|
state.config.token = opts.jwt || opts.access_token;
|
|
console.info("Placing new token in keystore.");
|
|
try {
|
|
fs.writeFileSync(confpath, YAML.safeDump(snakeCopy(state.config)));
|
|
} catch (e) {
|
|
console.error("Token not saved:");
|
|
console.error(e);
|
|
}
|
|
return keystore.set("access_token.jwt", opts.jwt || opts.access_token).catch(function (e) {
|
|
console.error("Token not saved:");
|
|
console.error(e);
|
|
});
|
|
}
|
|
};
|
|
|
|
function sigHandler() {
|
|
process.removeListener('SIGINT', sigHandler);
|
|
|
|
console.info('Received kill signal. Attempting to exit cleanly...');
|
|
state.keepAlive.state = false;
|
|
|
|
// 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.
|
|
if (myRemote) {
|
|
myRemote.end();
|
|
myRemote = null;
|
|
}
|
|
if (controlServer) {
|
|
controlServer.close();
|
|
}
|
|
cancelUpdater();
|
|
}
|
|
// reverse 2FA otp
|
|
|
|
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 }
|
|
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;
|
|
}
|
|
};
|
|
|
|
var DB = {};
|
|
DB.pubs = [];
|
|
DB.accounts = [];
|
|
var token;
|
|
var tokenname = "access_token.jwt";
|
|
try {
|
|
// backwards-compatibility shim
|
|
var tokenpath = path.join(path.dirname(state._confpath), 'access_token.txt');
|
|
token = fs.readFileSync(tokenpath, 'ascii').trim();
|
|
keystore.set(tokenname, token).then(onKeystore).catch(function (err) {
|
|
console.error('keystore failure:');
|
|
console.error(err);
|
|
});
|
|
} catch(e) { onKeystore(); }
|
|
function onKeystore() {
|
|
return keystore.all().then(function (list) {
|
|
var key;
|
|
list.forEach(function (el) {
|
|
// find key
|
|
if (KEYEXT === el.account.slice(-KEYEXT.length)
|
|
&& el.password.kty && el.password.kid) {
|
|
key = el.password;
|
|
return;
|
|
}
|
|
|
|
// find token
|
|
if (tokenname === el.account) {
|
|
token = el.password;
|
|
return;
|
|
}
|
|
|
|
// find trusted public keys
|
|
// (if we sign these we could probably just store them to the fs,
|
|
// but we do want some way to know that they weren't just willy-nilly
|
|
// added to the fs my any old program)
|
|
if (PUBEXT === el.account.slice(-PUBEXT.length)) {
|
|
// pre-parsed
|
|
DB.pubs.push(el.password);
|
|
return;
|
|
}
|
|
|
|
console.log("unrecognized password: %s", el.account);
|
|
});
|
|
|
|
if (key) {
|
|
state.key = key;
|
|
state.pub = keypairs.neuter({ jwk: key });
|
|
fs.readFile(confpath, 'utf8', parseConfig);
|
|
return;
|
|
}
|
|
|
|
return keypairs.generate().then(function (pair) {
|
|
var jwk = pair.private;
|
|
return keypairs.thumbprint({ jwk: jwk }).then(function (kid) {
|
|
jwk.kid = kid;
|
|
return keystore.set(kid + KEYEXT, jwk).then(function () {
|
|
var size = (jwk.crv || Buffer.from(jwk.n, 'base64').byteLength * 8);
|
|
console.info("Generated new %s %s private key with thumbprint %s", jwk.kty, size, kid);
|
|
state.key = jwk;
|
|
fs.readFile(confpath, 'utf8', parseConfig);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
}
|
|
}());
|
|
|
|
function ecdsaAsn1SigToJwtSig(alg, b64sig) {
|
|
// ECDSA JWT signatures differ from "normal" ECDSA signatures
|
|
// https://tools.ietf.org/html/rfc7518#section-3.4
|
|
if (!/^ES/i.test(alg)) { return b64sig; }
|
|
|
|
var bufsig = Buffer.from(b64sig, 'base64');
|
|
var hlen = bufsig.byteLength / 2; // should be even
|
|
var r = bufsig.slice(0, hlen);
|
|
var s = bufsig.slice(hlen);
|
|
// unpad positive ints less than 32 bytes wide
|
|
while (!r[0]) { r = r.slice(1); }
|
|
while (!s[0]) { s = s.slice(1); }
|
|
// pad (or re-pad) ambiguously non-negative BigInts to 33 bytes wide
|
|
if (0x80 & r[0]) { r = Buffer.concat([Buffer.from([0]), r]); }
|
|
if (0x80 & s[0]) { s = Buffer.concat([Buffer.from([0]), s]); }
|
|
|
|
var len = 2 + r.byteLength + 2 + s.byteLength;
|
|
var head = [0x30];
|
|
// hard code 0x80 + 1 because it won't be longer than
|
|
// two SHA512 plus two pad bytes (130 bytes <= 256)
|
|
if (len >= 0x80) { head.push(0x81); }
|
|
head.push(len);
|
|
|
|
var buf = Buffer.concat([
|
|
Buffer.from(head)
|
|
, Buffer.from([0x02, r.byteLength]), r
|
|
, Buffer.from([0x02, s.byteLength]), s
|
|
]);
|
|
|
|
return toUrlSafe(buf.toString('base64'));
|
|
}
|
|
|
|
function toUrlSafe(b64) {
|
|
return b64
|
|
.replace(/\+/g, '-')
|
|
.replace(/\//g, '_')
|
|
.replace(/=/g, '')
|
|
;
|
|
}
|