1148 lines
35 KiB
JavaScript
Executable File
1148 lines
35 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 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 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 TelebitRemote = require('../').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 tokenpath = path.join(path.dirname(state._confpath), 'access_token.txt');
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var token;
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try {
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token = fs.readFileSync(tokenpath, 'ascii').trim();
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//console.log('[DEBUG] access_token', typeof token, token);
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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 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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function saveConfig(cb) {
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fs.writeFile(confpath, YAML.safeDump(snakeCopy(state.config)), cb);
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}
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var controllers = {};
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controllers.http = function (req, res, opts) {
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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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if (!opts.body) {
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res.statusCode = 422;
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res.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify({"error":{"message":"module \'http\' needs more arguments"}}));
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return;
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}
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var active = true;
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var portOrPath = opts.body[0];
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var appname = getAppname(portOrPath);
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var subdomain = opts.body[1];
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var remoteHost;
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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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delete state.servernames[subdomain];
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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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state.servernames[subdomain].handler = portOrPath;
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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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state.servernames[prefix].handler = portOrPath;
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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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state.servernames[key].handler = portOrPath;
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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.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify({
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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, opts) {
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if (!opts.body) {
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res.statusCode = 422;
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res.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify({ 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 = opts.body[1];
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var portOrPath = opts.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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return;
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}
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// forward-to port-or-module
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// TODO we can't send files over tcp until we fix the connect event bug
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state.ports[remotePort].handler = portOrPath;
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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.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify({
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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, opts) {
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if (!opts.body) {
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res.statusCode = 422;
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res.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify({"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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res.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify({
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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: state.config.sshAuto || 22
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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 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.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify({ 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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};
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function serveControlsHelper() {
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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(decodeURIComponent(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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var dumpy = {
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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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, code: 'CONFIG'
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};
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if (state.otp) {
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dumpy.device_pair_code = state.otp;
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}
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if (state._can_pair && state.config.email && !state.token) {
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dumpy.code = "AWAIT_AUTH";
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dumpy.message = "Please run 'telebit init' to authenticate.";
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}
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res.end(JSON.stringify(dumpy));
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}
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function getConfigOnly() {
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var resp = JSON.parse(JSON.stringify(state.config));
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resp.version = pkg.version;
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res.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify(resp));
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}
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//
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// without proper config
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//
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function saveAndReport() {
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console.log('[DEBUG] saveAndReport config write', confpath);
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console.log(YAML.safeDump(snakeCopy(state.config)));
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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.setHeader('Content-Type', 'application/json');
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res.end('{"error":{"message":"Could not save config file after init: ' + err.message.replace(/"/g, "'")
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+ '.\nPerhaps check that the file exists and your user has permissions to write it?"}}');
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return;
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}
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listSuccess();
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});
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}
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function initOrConfig() {
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var conf = {};
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if (!opts.body) {
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res.statusCode = 422;
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res.end('{"error":{"message":"module \'init\' needs more arguments"}}');
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return;
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}
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// relay, email, agree_tos, servernames, ports
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//
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opts.body.forEach(function (opt) {
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var parts = opt.split(/:/);
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if ('true' === parts[1]) {
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parts[1] = true;
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} else if ('false' === parts[1]) {
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parts[1] = false;
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} else if ('null' === parts[1]) {
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parts[1] = null;
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} else if ('undefined' === parts[1]) {
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parts[1] = undefined;
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}
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conf[parts[0]] = parts[1];
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});
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// TODO camelCase query
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state.config.email = conf.email || state.config.email || '';
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if ('undefined' !== typeof conf.agreeTos
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|| 'undefined' !== typeof conf.agreeTos ) {
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state.config.agreeTos = conf.agreeTos || conf.agree_tos;
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}
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state.otp = conf._otp; // this should only be done on the client side
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state.config.relay = conf.relay || state.config.relay || '';
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console.log();
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console.log('conf.token', typeof conf.token, conf.token);
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console.log('state.config.token', typeof state.config.token, state.config.token);
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state.config.token = conf.token || state.config.token || null;
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state.config.secret = conf.secret || state.config.secret || null;
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state.pretoken = conf.pretoken || state.config.pretoken || null;
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if (state.secret) {
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console.log('state.secret');
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state.token = common.signToken(state);
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}
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if (!state.token) {
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console.log('!state.token');
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state.token = conf._token;
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}
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console.log();
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console.log('JSON.stringify(conf)');
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console.log(JSON.stringify(conf));
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console.log();
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console.log('JSON.stringify(state)');
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console.log(JSON.stringify(state));
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console.log();
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if ('undefined' !== typeof conf.newsletter) {
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state.config.newsletter = conf.newsletter;
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}
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if ('undefined' !== typeof conf.communityMember
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|| 'undefined' !== typeof conf.community_member) {
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state.config.communityMember = conf.communityMember || conf.community_member;
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}
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if ('undefined' !== typeof conf.telemetry) {
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state.config.telemetry = conf.telemetry;
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}
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if (conf._servernames) {
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(conf._servernames||'').split(/,/g).forEach(function (key) {
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if (!state.config.servernames[key]) {
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state.config.servernames[key] = { sub: undefined };
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}
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});
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}
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if (conf._ports) {
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(conf._ports||'').split(/,/g).forEach(function (key) {
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if (!state.config.ports[key]) {
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state.config.ports[key] = {};
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}
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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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console.warn('missing config');
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res.statusCode = 400;
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res.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify({
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error: {
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code: "E_INIT"
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, message: "Missing important config file params"
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, _params: JSON.stringify(conf)
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, _config: JSON.stringify(state.config)
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, _body: JSON.stringify(opts.body)
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}
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}));
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return;
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}
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// init also means enable
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delete state.config.disable;
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safeStartTelebitRemote(true).then(saveAndReport).catch(handleError);
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}
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function restart() {
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console.info("[telebitd.js] server closing...");
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state.keepAlive.state = false;
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if (myRemote) {
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myRemote.end();
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myRemote.on('end', respondAndClose);
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// failsafe
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setTimeout(function () {
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console.info("[telebitd.js] closing too slowly, force quit");
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respondAndClose();
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}, 5 * 1000);
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} else {
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respondAndClose();
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}
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function respondAndClose() {
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res.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify({ success: true }));
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controlServer.close(function () {
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console.info("[telebitd.js] server closed");
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setTimeout(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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}, 100);
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});
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}
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}
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function invalidConfig() {
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res.statusCode = 400;
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res.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify({
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error: { code: "E_CONFIG", message: "Invalid config file. Please run 'telebit init'" }
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}));
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}
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function saveAndCommit() {
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state.config.servernames = state.servernames;
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state.config.ports = state.ports;
|
|
fs.writeFile(confpath, YAML.safeDump(snakeCopy(state.config)), function (err) {
|
|
if (err) {
|
|
res.statusCode = 500;
|
|
res.setHeader('Content-Type', 'application/json');
|
|
res.end(JSON.stringify({
|
|
"error":{"message":"Could not save config file. Perhaps you're not running as root?"}
|
|
}));
|
|
return;
|
|
}
|
|
listSuccess();
|
|
});
|
|
}
|
|
|
|
function handleError(err) {
|
|
res.statusCode = 500;
|
|
res.setHeader('Content-Type', 'application/json');
|
|
res.end(JSON.stringify({
|
|
error: { message: err.message, code: err.code }
|
|
}));
|
|
}
|
|
|
|
function enable() {
|
|
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);
|
|
return;
|
|
}
|
|
// TODO XXX myRemote.active
|
|
if (myRemote) {
|
|
listSuccess();
|
|
return;
|
|
}
|
|
safeStartTelebitRemote(true).then(listSuccess).catch(handleError);
|
|
});
|
|
}
|
|
|
|
function disable() {
|
|
state.config.disable = true;
|
|
state.keepAlive.state = false;
|
|
|
|
if (myRemote) { myRemote.end(); myRemote = null; }
|
|
fs.writeFile(confpath, YAML.safeDump(snakeCopy(state.config)), function (err) {
|
|
res.setHeader('Content-Type', 'application/json');
|
|
if (err) {
|
|
err.message = "Could not save config file. Perhaps you're user doesn't have permission?";
|
|
handleError(err);
|
|
return;
|
|
}
|
|
res.end('{"success":true}');
|
|
});
|
|
}
|
|
|
|
function getStatus() {
|
|
res.setHeader('Content-Type', 'application/json');
|
|
res.end(JSON.stringify(
|
|
{ status: (state.config.disable ? 'disabled' : 'enabled')
|
|
, ready: ((state.config.relay && (state.config.token || state.config.agreeTos)) ? true : false)
|
|
, active: !!myRemote
|
|
, connected: 'maybe (todo)'
|
|
, version: pkg.version
|
|
, servernames: state.servernames
|
|
}
|
|
));
|
|
}
|
|
|
|
if (/\b(config)\b/.test(opts.pathname) && /get/i.test(req.method)) {
|
|
getConfigOnly();
|
|
return;
|
|
}
|
|
if (/\b(init|config)\b/.test(opts.pathname)) {
|
|
initOrConfig();
|
|
return;
|
|
}
|
|
if (/restart/.test(opts.pathname)) {
|
|
restart();
|
|
return;
|
|
}
|
|
//
|
|
// Check for proper config
|
|
//
|
|
if (!state.config.relay || !state.config.email || !state.config.agreeTos) {
|
|
invalidConfig();
|
|
return;
|
|
}
|
|
//
|
|
// With proper config
|
|
//
|
|
if (/http/.test(opts.pathname)) {
|
|
controllers.http(req, res, opts);
|
|
return;
|
|
}
|
|
if (/tcp/.test(opts.pathname)) {
|
|
controllers.tcp(req, res, opts);
|
|
return;
|
|
}
|
|
if (/save|commit/.test(opts.pathname)) {
|
|
saveAndCommit();
|
|
return;
|
|
}
|
|
if (/ssh/.test(opts.pathname)) {
|
|
controllers.ssh(req, res, opts);
|
|
return;
|
|
}
|
|
if (/enable/.test(opts.pathname)) {
|
|
enable();
|
|
return;
|
|
}
|
|
if (/disable/.test(opts.pathname)) {
|
|
disable();
|
|
return;
|
|
}
|
|
if (/status/.test(opts.pathname)) {
|
|
getStatus();
|
|
return;
|
|
}
|
|
if (/list/.test(opts.pathname)) {
|
|
listSuccess();
|
|
return;
|
|
}
|
|
|
|
res.setHeader('Content-Type', 'application/json');
|
|
res.end(JSON.stringify({"error":{"message":"unrecognized rpc"}}));
|
|
});
|
|
|
|
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 ('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 (state._ipc.port) {
|
|
serverOpts.host = 'localhost';
|
|
serverOpts.port = state._ipc.port;
|
|
} 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);
|
|
});
|
|
}
|
|
|
|
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 || {}) || {};
|
|
|
|
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() {
|
|
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;
|
|
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() {
|
|
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;
|
|
state.config.token = opts.jwt || opts.access_token;
|
|
console.info("Updating '" + tokenpath + "' with new token:");
|
|
try {
|
|
fs.writeFileSync(tokenpath, opts.jwt);
|
|
fs.writeFileSync(confpath, YAML.safeDump(snakeCopy(state.config)));
|
|
} catch (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;
|
|
}
|
|
};
|
|
|
|
fs.readFile(confpath, 'utf8', parseConfig);
|
|
|
|
}());
|