501 lines
15 KiB
JavaScript
Executable File
501 lines
15 KiB
JavaScript
Executable File
#!/usr/bin/env node
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(function () {
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'use strict';
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var pkg = require('../package.json');
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console.log(pkg.name, pkg.version);
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var url = require('url');
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var path = require('path');
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var remote = require('../');
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var state = {};
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var argv = process.argv.slice(2);
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var confIndex = argv.indexOf('--config');
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var confpath;
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var confargs;
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if (-1 === confIndex) {
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confIndex = argv.indexOf('-c');
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}
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if (-1 !== confIndex) {
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confargs = argv.splice(confIndex, 2);
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confpath = confargs[1];
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}
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function help() {
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console.info('');
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console.info('Telebit Remote v' + pkg.version);
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console.info('');
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console.info('Usage:');
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console.info('');
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console.info('\ttelebit --config <path>');
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console.info('');
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console.info('Example:');
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console.info('');
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console.info('\ttelebit --config /etc/telebit/telebit.yml');
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console.info('');
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console.info('Config:');
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console.info('');
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console.info('\tSee https://git.coolaj86.com/coolaj86/telebit.js');
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console.info('');
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console.info('');
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process.exit(0);
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}
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if (-1 === confIndex) {
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confpath = path.join(require('os').homedir(), '.config/telebit/telebit.yml');
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console.info('Using default --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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}
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if (!confpath || /^--/.test(confpath)) {
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help();
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}
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var defaultSockname = '/opt/telebit/var/telebit.sock';
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var tokenfile = 'access_token.txt';
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var tokenpath = path.join(path.dirname(confpath), tokenfile);
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var token;
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try {
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token = require('fs').readFileSync(tokenpath, 'ascii').trim();
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} catch(e) {
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// ignore
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}
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require('fs').readFile(confpath, 'utf8', function (err, text) {
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var config;
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var recase = require('recase').create({});
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var camelCopy = recase.camelCopy.bind(recase);
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if (err) {
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console.error("\nCouldn't load config:\n\n\t" + err.message + "\n");
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process.exit(1);
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return;
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}
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try {
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config = JSON.parse(text);
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} catch(e1) {
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try {
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config = require('js-yaml').safeLoad(text);
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} catch(e2) {
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console.error(e1.message);
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console.error(e2.message);
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process.exit(1);
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return;
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}
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}
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state._confpath = confpath;
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state.config = camelCopy(config);
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if (state.config.token && token) {
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console.warn();
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console.warn("Found two tokens:");
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console.warn();
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console.warn("\t1. " + tokenpath);
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console.warn("\n2. " + confpath);
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console.warn();
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console.warn("Choosing the first.");
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console.warn();
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}
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state.config.token = token;
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function restartCmd() {
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var http = require('http');
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var req = http.get({
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socketPath: state.config.sock || defaultSockname
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, method: 'POST'
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, path: '/rpc/restart'
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}, function (resp) {
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console.log('statusCode', resp.statusCode);
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if (200 !== resp.statusCode) {
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console.warn("May not have restarted."
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+ " Consider peaking at the logs either with 'journalctl -xeu telebit' or /opt/telebit/var/log/error.log");
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} else {
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console.log("restarted");
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}
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});
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req.on('error', function (err) {
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console.error('Error');
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console.error(err);
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return;
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});
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}
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function controlServer() {
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var http = require('http');
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var server = http.createServer(function (req, res) {
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if (/restart/.test(req.url)) {
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res.end('{"success":true}');
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tun.end();
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process.nextTick(function () {
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server.close(function () {
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// TODO closeAll other things
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process.exit();
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});
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});
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return;
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}
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res.end('{"error":{"message":"unrecognized rpc"}}');
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});
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var pipename = (state.config.sock || defaultSockname);
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if (/^win/i.test(require('os').platform())) {
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pipename = '\\\\?\\pipe' + pipename.replace(/\//, '\\');
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}
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var oldUmask = process.umask(0x0000);
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server.listen({
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path: pipename
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, writableAll: true
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, readableAll: true
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, exclusive: false
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}, function () {
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process.umask(oldUmask);
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});
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}
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console.log('argv', argv);
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if (-1 !== argv.indexOf('restart')) {
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restartCmd();
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return;
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}
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controlServer();
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var tun = rawTunnel();
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});
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function connectTunnel() {
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state.net = {
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createConnection: function (info, cb) {
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// data is the hello packet / first chunk
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// info = { data, servername, port, host, remoteFamily, remoteAddress, remotePort }
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var net = require('net');
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// socket = { write, push, end, events: [ 'readable', 'data', 'error', 'end' ] };
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var socket = net.createConnection({ port: info.port, host: info.host }, cb);
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return socket;
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}
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};
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state.greenlock = state.config.greenlock || {};
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if (!state.config.sortingHat) {
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state.config.sortingHat = path.resolve(__dirname, '..', 'lib/sorting-hat.js');
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}
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// TODO sortingHat.print(); ?
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if (state.config.email && !state.token) {
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console.info();
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console.info('==================================');
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console.info('= HEY! LISTEN! =');
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console.info('==================================');
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console.info('= =');
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console.info('= 1. Open your email =');
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console.info('= 2. Click the magic login link =');
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console.info('= 3. Check back here for deets =');
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console.info('= =');
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console.info('==================================');
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console.info();
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}
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// TODO Check undefined vs false for greenlock config
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var tun = remote.connect({
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relay: state.config.relay
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, config: state.config
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, _confpath: confpath
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, sortingHat: state.config.sortingHat
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, net: state.net
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, insecure: state.config.relay_ignore_invalid_certificates
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, token: state.token
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, handlers: {
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grant: function (grants) {
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console.info("");
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console.info("Connect to your device by any of the following means:");
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console.info("");
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grants.forEach(function (arr) {
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if ('ssh+https' === arr[0]) {
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console.info("SSH+HTTPS");
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} else if ('ssh' === arr[0]) {
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console.info("SSH");
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} else if ('tcp' === arr[0]) {
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console.info("TCP");
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} else if ('https' === arr[0]) {
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console.info("HTTPS");
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}
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console.log('\t' + arr[0] + '://' + arr[1] + (arr[2] ? (':' + arr[2]) : ''));
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if ('ssh+https' === arr[0]) {
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console.info("\tex: ssh -o ProxyCommand='openssl s_client -connect %h:%p -quiet' " + arr[1] + " -p 443\n");
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} else if ('ssh' === arr[0]) {
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console.info("\tex: ssh " + arr[1] + " -p " + arr[2] + "\n");
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} else if ('tcp' === arr[0]) {
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console.info("\tex: netcat " + arr[1] + " " + arr[2] + "\n");
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} else if ('https' === arr[0]) {
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console.info("\tex: curl https://" + arr[1] + "\n");
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}
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});
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}
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, access_token: function (opts) {
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console.info("Updating '" + tokenpath + "' with new token:");
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try {
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require('fs').writeFileSync(tokenpath, opts.jwt);
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} catch (e) {
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console.error("Token not saved:");
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console.error(e);
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}
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}
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}
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, greenlockConfig: {
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version: state.greenlock.version || 'draft-11'
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, server: state.greenlock.server || 'https://acme-v02.api.letsencrypt.org/directory'
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, communityMember: state.greenlock.communityMember || state.config.communityMember
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, telemetry: state.greenlock.telemetry || state.config.telemetry
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, configDir: state.greenlock.configDir || path.resolve(__dirname, '..', '/etc/acme/')
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// TODO, store: require(state.greenlock.store.name || 'le-store-certbot').create(state.greenlock.store.options || {})
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, approveDomains: function (opts, certs, cb) {
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// Certs being renewed are listed in certs.altnames
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if (certs) {
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opts.domains = certs.altnames;
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cb(null, { options: opts, certs: certs });
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return;
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}
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// by virtue of the fact that it's being tunneled through a
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// trusted source that is already checking, we're good
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//if (-1 !== state.config.servernames.indexOf(opts.domains[0])) {
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opts.email = state.greenlock.email || state.config.email;
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opts.agreeTos = state.greenlock.agree || state.config.agreeTos;
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cb(null, { options: opts, certs: certs });
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return;
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//}
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//cb(new Error("servername not found in allowed list"));
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}
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}
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});
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function sigHandler() {
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console.info('Received kill signal. Attempting to exit cleanly...');
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// We want to handle cleanup properly unless something is broken in our cleanup process
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// that prevents us from exitting, in which case we want the user to be able to send
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// the signal again and exit the way it normally would.
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process.removeListener('SIGINT', sigHandler);
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tun.end();
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}
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process.on('SIGINT', sigHandler);
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return tun;
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}
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function rawTunnel() {
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if (!state.config.relay) {
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throw new Error("'" + state._confpath + "' is missing 'relay'");
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}
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/*
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if (!(state.config.secret || state.config.token)) {
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console.error("You must use --secret or --token with --relay");
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process.exit(1);
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return;
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}
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*/
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var location = url.parse(state.config.relay);
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if (!location.protocol || /\./.test(location.protocol)) {
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state.config.relay = 'wss://' + state.config.relay;
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location = url.parse(state.config.relay);
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}
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var aud = location.hostname + (location.port ? ':' + location.port : '');
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state.config.relay = location.protocol + '//' + aud;
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if (!state.config.token && state.config.secret) {
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var jwt = require('jsonwebtoken');
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var tokenData = {
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domains: Object.keys(state.config.servernames || {}).filter(function (name) { return /\./.test(name); })
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, aud: aud
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, iss: Math.round(Date.now() / 1000)
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};
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state.token = jwt.sign(tokenData, state.config.secret);
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}
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state.token = state.token || state.config.token;
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// TODO sign token with own private key, including public key and thumbprint
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// (much like ACME JOSE account)
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return connectTunnel();
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}
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/*
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var domainsMap = {};
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var services = {};
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function collectDomains(val, memo) {
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var vals = val.split(/,/g);
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function parseProxy(location) {
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// john.example.com
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// http:john.example.com:3000
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// http://john.example.com:3000
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var parts = location.split(':');
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if (1 === parts.length) {
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// john.example.com -> :john.example.com:0
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parts[1] = parts[0];
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parts[0] = '';
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parts[2] = 0;
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}
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else if (2 === parts.length) {
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throw new Error("invalid arguments for --domains, should use the format <domainname> or <scheme>:<domainname>:<local-port>");
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}
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if (!parts[1]) {
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throw new Error("invalid arguments for --domains, should use the format <domainname> or <scheme>:<domainname>:<local-port>");
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}
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parts[0] = parts[0].toLowerCase();
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parts[1] = parts[1].toLowerCase().replace(/(\/\/)?/, '');
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parts[2] = parseInt(parts[2], 10) || 0;
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memo.push({
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protocol: parts[0]
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, hostname: parts[1]
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, port: parts[2]
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});
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}
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vals.map(function (val) {
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return parseProxy(val);
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});
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return memo;
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}
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function collectProxies(val, memo) {
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var vals = val.split(/,/g);
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function parseProxy(location) {
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// john.example.com
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// https:3443
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// http:john.example.com:3000
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// http://john.example.com:3000
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var parts = location.split(':');
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var dual = false;
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if (1 === parts.length) {
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// john.example.com -> :john.example.com:0
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parts[1] = parts[0];
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parts[0] = '';
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parts[2] = 0;
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dual = true;
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}
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else if (2 === parts.length) {
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// https:3443 -> https:*:3443
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parts[2] = parts[1];
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parts[1] = '*';
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}
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parts[0] = parts[0].toLowerCase();
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parts[1] = parts[1].toLowerCase().replace(/(\/\/)?/, '') || '*';
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parts[2] = parseInt(parts[2], 10) || 0;
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if (!parts[2]) {
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// TODO grab OS list of standard ports?
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if (!parts[0] || 'http' === parts[0]) {
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parts[2] = 80;
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}
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else if ('https' === parts[0]) {
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parts[2] = 443;
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}
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else {
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throw new Error("port must be specified - ex: tls:*:1337");
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}
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}
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memo.push({
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protocol: parts[0] || 'https'
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, hostname: parts[1]
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, port: parts[2] || 443
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});
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if (dual) {
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memo.push({
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protocol: 'http'
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, hostname: parts[1]
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, port: 80
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});
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}
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}
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vals.map(function (val) {
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return parseProxy(val);
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});
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return memo;
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}
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var program = require('commander');
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program
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.version(pkg.version)
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//.command('jsurl <url>')
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.arguments('<url>')
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.action(function (url) {
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program.url = url;
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})
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.option('-k --insecure', 'Allow TLS connections to a Telebit Relay without valid certs (rejectUnauthorized: false)')
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.option('--locals <LIST>', 'comma separated list of <proto>:<port> to which matching incoming http and https should forward (reverse proxy). Ex: https:8443,smtps:8465', collectProxies, [ ]) // --reverse-proxies
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.option('--domains <LIST>', 'comma separated list of domain names to set to the tunnel (to capture a specific protocol to a specific local port use the format https:example.com:1337 instead). Ex: example.com,example.net', collectDomains, [ ])
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.option('--device [HOSTNAME]', 'Tunnel all domains associated with this device instead of specific domainnames. Use with --locals <proto>:<port>. Ex: macbook-pro.local (the output of `hostname`)')
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.option('--relay <URL>', 'the domain (or ip address) at which you are running Telebit Relay (the proxy)') // --proxy
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.option('--secret <STRING>', 'the same secret used by the Telebit Relay (used for JWT authentication)')
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.option('--token <STRING>', 'a pre-generated token for use with the Telebit Relay (instead of generating one with --secret)')
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.option('--agree-tos', 'agree to the Telebit Terms of Service (requires user validation)')
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.option('--email <EMAIL>', 'email address (or cloud address) for user validation')
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.option('--oauth3-url <URL>', 'Cloud Authentication to use (default: https://oauth3.org)')
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.parse(process.argv)
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;
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program.locals = (program.locals || []).concat(program.domains || []);
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program.locals.forEach(function (proxy) {
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// Create a map from which we can derive a list of all domains we want forwarded to us.
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if (proxy.hostname && proxy.hostname !== '*') {
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domainsMap[proxy.hostname] = true;
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}
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// Create a map of which port different protocols should be forwarded to, allowing for specific
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// domains to go to different ports if need be (though that only works for HTTP and HTTPS).
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if (proxy.protocol && proxy.port) {
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services[proxy.protocol] = services[proxy.protocol] || {};
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if (/http/.test(proxy.protocol) && proxy.hostname && proxy.hostname !== '*') {
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services[proxy.protocol][proxy.hostname] = proxy.port;
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}
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else {
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if (services[proxy.protocol]['*'] && services[proxy.protocol]['*'] !== proxy.port) {
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console.error('cannot forward generic', proxy.protocol, 'traffic to multiple ports');
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process.exit(1);
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}
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else {
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services[proxy.protocol]['*'] = proxy.port;
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}
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}
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}
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});
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if (Object.keys(domainsMap).length === 0) {
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console.error('no domains specified');
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process.exit(1);
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return;
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}
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// Make sure we have generic ports for HTTP and HTTPS
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services.https = services.https || {};
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services.https['*'] = services.https['*'] || 8443;
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services.http = services.http || {};
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services.http['*'] = services.http['*'] || services.https['*'];
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program.services = services;
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*/
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}());
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