705 lines
22 KiB
JavaScript
Executable File
705 lines
22 KiB
JavaScript
Executable File
#!/usr/bin/env node
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(function () {
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'use strict';
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var pkg = require('../package.json');
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var url = require('url');
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var path = require('path');
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var http = require('http');
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var state = { servernames: {}, ports: {} };
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var argv = process.argv.slice(2);
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var confIndex = argv.indexOf('--config');
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var confpath;
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var confargs;
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if (-1 === confIndex) {
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confIndex = argv.indexOf('-c');
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}
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if (-1 !== confIndex) {
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confargs = argv.splice(confIndex, 2);
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confpath = confargs[1];
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}
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function help() {
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console.info('');
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console.info('Telebit Remote v' + pkg.version);
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console.info('');
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console.info('Daemon Usage:');
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console.info('');
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console.info('\tsudo telebit daemon --config <path>');
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console.info('\tex: sudo telebit daemon --config /opt/telebit/etc/telebit.yml');
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console.info('');
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console.info('Remote Usage:');
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console.info('');
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console.info('\ttelebit [--config <path>] <module> <module-option>');
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console.info('');
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console.info('Examples:');
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console.info('');
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console.info('\ttelebit status # whether enabled or disabled');
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console.info('\ttelebit enable # disallow incoming connections');
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console.info('\ttelebit disable # allow incoming connections');
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console.info('');
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console.info('\ttelebit list # list rules for servernames and ports');
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console.info('');
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console.info('\ttelebit http none # remove all https handlers');
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console.info('\ttelebit http 3000 # forward all https traffic to port 3000');
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console.info('\ttelebit http /module/path # load a node module to handle all https traffic');
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console.info('');
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console.info('\ttelebit http none example.com # remove https handler from example.com');
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console.info('\ttelebit http 3001 example.com # forward https traffic for example.com to port 3001');
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console.info('\ttelebit http /module/path example.com # forward https traffic for example.com to port 3001');
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console.info('');
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console.info('\ttelebit tcp none # remove all tcp handlers');
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console.info('\ttelebit tcp 5050 # forward all tcp to port 5050');
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console.info('\ttelebit tcp /module/path # handle all tcp with a node module');
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console.info('');
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console.info('\ttelebit tcp none 6565 # remove tcp handler from external port 6565');
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console.info('\ttelebit tcp 5050 6565 # forward external port 6565 to local 5050');
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console.info('\ttelebit tcp /module/path 6565 # handle external port 6565 with a node module');
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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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var verstr = '' + pkg.name + ' v' + pkg.version;
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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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verstr += ' (--config "' + confpath + '")';
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}
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console.info(verstr + '\n');
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if (-1 !== argv.indexOf('-h') || -1 !== argv.indexOf('--help')) {
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help();
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}
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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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var controlServer;
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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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var snakeCopy = recase.snakeCopy.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.token = token;
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if (!state.config.servernames) {
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state.config.servernames = {};
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}
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if (!state.config.ports) {
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state.config.ports = {};
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}
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state.servernames = JSON.parse(JSON.stringify(state.config.servernames));
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state.ports = JSON.parse(JSON.stringify(state.config.ports));
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function putConfig(service, args) {
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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/' + service + '?_body=' + JSON.stringify(args)
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}, function (resp) {
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function finish() {
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if (200 !== resp.statusCode) {
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console.warn("'" + service + "' may have failed."
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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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if (body) {
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console.info('Response');
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console.info(body);
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} else {
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console.info("👌");
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}
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}
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}
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var body = '';
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if (resp.headers['content-length']) {
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resp.on('data', function (chunk) {
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body += chunk.toString();
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});
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resp.on('end', function () {
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finish();
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});
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} else {
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finish();
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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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var tun;
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function serveControls() {
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if (!state.config.disable) {
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tun = rawTunnel();
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}
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controlServer = http.createServer(function (req, res) {
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var opts = url.parse(req.url, true);
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if (opts.query._body) {
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try {
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opts.body = JSON.parse(opts.query._body, true);
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} catch(e) {
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res.statusCode = 500;
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res.end('{"error":{"message":"?_body={{bad_format}}"}}');
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return;
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}
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}
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if (/enable/.test(opts.path)) {
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delete state.config.disable;// = undefined;
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if (!tun) { tun = rawTunnel(); }
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fs.writeFile(confpath, require('js-yaml').safeDump(snakeCopy(state.config)), function () {
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if (err) {
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res.statusCode = 500;
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res.end('{"error":{"message":"Could not save config file. Perhaps you\'re not running as root?"}}');
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return;
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}
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res.end('{"success":true}');
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});
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return;
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}
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if (/disable/.test(opts.path)) {
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state.config.disable = true;
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if (tun) { tun.end(); tun = null; }
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fs.writeFile(confpath, require('js-yaml').safeDump(snakeCopy(state.config)), function () {
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if (err) {
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res.statusCode = 500;
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res.end('{"error":{"message":"Could not save config file. Perhaps you\'re not running as root?"}}');
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return;
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}
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res.end('{"success":true}');
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});
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return;
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}
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if (/status/.test(opts.path)) {
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res.end('{"status":' + (state.config.disable ? 'disabled' : 'enabled') + '}');
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return;
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}
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if (/restart/.test(opts.path)) {
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tun.end();
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res.end('{"success":true}');
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controlServer.close(function () {
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// TODO closeAll other things
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process.nextTick(function () {
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// system daemon will restart the process
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process.exit();
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});
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});
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return;
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}
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if (/list/.test(opts.path)) {
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res.end(JSON.stringify({
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servernames: state.servernames
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, ports: state.ports
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}));
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return;
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}
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if (/http/.test(opts.path)) {
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if (!opts.body) {
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res.statusCode = 422;
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res.end('{"error":{"message":"needs more arguments"}}');
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return;
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}
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if (opts.body[1]) {
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if (!state.servernames[opts.body[1]]) {
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res.statusCode = 400;
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res.end('{"error":{"message":"bad servername \'' + opts.body[1] + '\'"');
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return;
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}
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state.servernames[opts.body[1]].handler = opts.body[0];
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} else {
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Object.keys(state.servernames).forEach(function (key) {
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state.servernames[key].handler = opts.body[0];
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});
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}
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res.end('{"success":true}');
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return;
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}
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if (/tcp/.test(opts.path)) {
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if (!opts.body) {
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res.statusCode = 422;
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res.end('{"error":{"message":"needs more arguments"}}');
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return;
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}
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// portnum
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if (opts.body[1]) {
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if (!state.ports[opts.body[1]]) {
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res.statusCode = 400;
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res.end('{"error":{"message":"bad servername \'' + opts.body[1] + '\'"');
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return;
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}
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// forward-to port-or-module
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state.ports[opts.body[1]].handler = opts.body[0];
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} else {
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Object.keys(state.ports).forEach(function (key) {
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state.ports[key].handler = opts.body[0];
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});
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}
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res.end('{"success":true}');
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return;
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}
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res.end('{"error":{"message":"unrecognized rpc"}}');
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});
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var pipename = (state.config.sock || defaultSockname);
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var fs = require('fs');
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if (fs.existsSync(pipename)) {
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fs.unlinkSync(pipename);
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}
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if (/^win/i.test(require('os').platform())) {
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pipename = '\\\\?\\pipe' + pipename.replace(/\//, '\\');
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}
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// mask is so that processes owned by other users
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// can speak to this process, which is probably root-owned
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var oldUmask = process.umask(0x0000);
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controlServer.listen({
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path: pipename
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, writableAll: true
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, readableAll: true
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, exclusive: false
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}, function () {
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process.umask(oldUmask);
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});
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}
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// Two styles:
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// http 3000
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// http modulename
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function makeRpc(key) {
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var cmdIndex = argv.indexOf(key);
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if (-1 !== cmdIndex) {
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putConfig(argv[cmdIndex], argv.slice(1));
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return true;
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}
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}
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if ([ 'status', 'enable', 'disable', 'restart', 'list' ].some(makeRpc)) {
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return;
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}
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if ([ 'http', 'tcp' ].some(function (key) {
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var cmdIndex = argv.indexOf(key);
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if (-1 !== cmdIndex && argv[cmdIndex + 1]) {
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putConfig(argv[cmdIndex], argv.slice(1));
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return true;
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}
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})) {
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return true;
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}
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if (-1 !== argv.indexOf('daemon')) {
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serveControls();
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return;
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}
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help();
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});
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function connectTunnel() {
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function sigHandler() {
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console.info('Received kill signal. Attempting to exit cleanly...');
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// We want to handle cleanup properly unless something is broken in our cleanup process
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// that prevents us from exitting, in which case we want the user to be able to send
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// the signal again and exit the way it normally would.
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process.removeListener('SIGINT', sigHandler);
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tun.end();
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controlServer.close();
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}
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process.on('SIGINT', sigHandler);
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state.net = state.net || {
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createConnection: function (info, cb) {
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// data is the hello packet / first chunk
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// info = { data, servername, port, host, remoteFamily, remoteAddress, remotePort }
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var net = require('net');
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// socket = { write, push, end, events: [ 'readable', 'data', 'error', 'end' ] };
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var socket = net.createConnection({ port: info.port, host: info.host }, cb);
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return socket;
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}
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};
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state.greenlock = state.config.greenlock || {};
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state.sortingHat = state.config.sortingHat || path.resolve(__dirname, '..', 'lib/sorting-hat.js');
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// TODO sortingHat.print(); ?
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if (state.config.email && !state.token) {
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console.info();
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console.info('==================================');
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console.info('= HEY! LISTEN! =');
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console.info('==================================');
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console.info('= =');
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console.info('= 1. Open your email =');
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console.info('= 2. Click the magic login link =');
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console.info('= 3. Check back here for deets =');
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console.info('= =');
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console.info('==================================');
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console.info();
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}
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// TODO Check undefined vs false for greenlock config
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var remote = require('../');
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state.handlers = {
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grant: function (grants) {
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console.info("");
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console.info("Connect to your device by any of the following means:");
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console.info("");
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grants.forEach(function (arr) {
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if ('https' === arr[0]) {
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if (!state.servernames[arr[1]]) {
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state.servernames[arr[1]] = {};
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}
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} else if ('tcp' === arr[0]) {
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if (!state.ports[arr[2]]) {
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state.ports[arr[2]] = {};
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}
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}
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if ('ssh+https' === arr[0]) {
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console.info("SSH+HTTPS");
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} else if ('ssh' === arr[0]) {
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console.info("SSH");
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} else if ('tcp' === arr[0]) {
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console.info("TCP");
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} else if ('https' === arr[0]) {
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console.info("HTTPS");
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}
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console.info('\t' + arr[0] + '://' + arr[1] + (arr[2] ? (':' + arr[2]) : ''));
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if ('ssh+https' === arr[0]) {
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console.info("\tex: ssh -o ProxyCommand='openssl s_client -connect %h:%p -quiet' " + arr[1] + " -p 443\n");
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} else if ('ssh' === arr[0]) {
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console.info("\tex: ssh " + arr[1] + " -p " + arr[2] + "\n");
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} else if ('tcp' === arr[0]) {
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console.info("\tex: netcat " + arr[1] + " " + arr[2] + "\n");
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} else if ('https' === arr[0]) {
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console.info("\tex: curl https://" + arr[1] + "\n");
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}
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});
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}
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, access_token: function (opts) {
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console.info("Updating '" + tokenpath + "' with new token:");
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try {
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require('fs').writeFileSync(tokenpath, opts.jwt);
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} catch (e) {
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console.error("Token not saved:");
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console.error(e);
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}
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}
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};
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state.greenlockConfig = {
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version: state.greenlock.version || 'draft-11'
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, server: state.greenlock.server || 'https://acme-v02.api.letsencrypt.org/directory'
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, communityMember: state.greenlock.communityMember || state.config.communityMember
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, telemetry: state.greenlock.telemetry || state.config.telemetry
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, configDir: state.greenlock.configDir || path.resolve(__dirname, '..', 'etc/acme/')
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// TODO, store: require(state.greenlock.store.name || 'le-store-certbot').create(state.greenlock.store.options || {})
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, approveDomains: function (opts, certs, cb) {
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// Certs being renewed are listed in certs.altnames
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if (certs) {
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opts.domains = certs.altnames;
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cb(null, { options: opts, certs: certs });
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return;
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}
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// by virtue of the fact that it's being tunneled through a
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// trusted source that is already checking, we're good
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//if (-1 !== state.config.servernames.indexOf(opts.domains[0])) {
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opts.email = state.greenlock.email || state.config.email;
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opts.agreeTos = state.greenlock.agree || state.config.agreeTos;
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cb(null, { options: opts, certs: certs });
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return;
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//}
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//cb(new Error("servername not found in allowed list"));
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}
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};
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state.insecure = state.config.relay_ignore_invalid_certificates;
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// { relay, config, servernames, ports, sortingHat, net, insecure, token, handlers, greenlockConfig }
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var tun = remote.connect({
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relay: state.relay
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, config: state.config
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, sortingHat: state.sortingHat
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, net: state.net
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, insecure: state.insecure
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, token: state.token
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, servernames: state.servernames
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, ports: state.ports
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, handlers: state.handlers
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, greenlockConfig: state.greenlockConfig
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});
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return tun;
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}
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function rawTunnel() {
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state.relay = state.config.relay;
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if (!state.relay) {
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throw new Error("'" + state._confpath + "' is missing 'relay'");
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}
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/*
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if (!(state.config.secret || state.config.token)) {
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console.error("You must use --secret or --token with --relay");
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process.exit(1);
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return;
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}
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*/
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var location = url.parse(state.relay);
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if (!location.protocol || /\./.test(location.protocol)) {
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state.relay = 'wss://' + state.relay;
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location = url.parse(state.relay);
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}
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var aud = location.hostname + (location.port ? ':' + location.port : '');
|
|
state.relay = location.protocol + '//' + aud;
|
|
|
|
if (!state.config.token && state.config.secret) {
|
|
var jwt = require('jsonwebtoken');
|
|
var tokenData = {
|
|
domains: Object.keys(state.config.servernames || {}).filter(function (name) { return /\./.test(name); })
|
|
, aud: aud
|
|
, iss: Math.round(Date.now() / 1000)
|
|
};
|
|
|
|
state.token = jwt.sign(tokenData, state.config.secret);
|
|
}
|
|
state.token = state.token || state.config.token;
|
|
|
|
// TODO sign token with own private key, including public key and thumbprint
|
|
// (much like ACME JOSE account)
|
|
|
|
return connectTunnel();
|
|
}
|
|
|
|
/*
|
|
var domainsMap = {};
|
|
var services = {};
|
|
|
|
function collectDomains(val, memo) {
|
|
var vals = val.split(/,/g);
|
|
|
|
function parseProxy(location) {
|
|
// john.example.com
|
|
// http:john.example.com:3000
|
|
// http://john.example.com:3000
|
|
var parts = location.split(':');
|
|
if (1 === parts.length) {
|
|
// john.example.com -> :john.example.com:0
|
|
parts[1] = parts[0];
|
|
|
|
parts[0] = '';
|
|
parts[2] = 0;
|
|
}
|
|
else if (2 === parts.length) {
|
|
throw new Error("invalid arguments for --domains, should use the format <domainname> or <scheme>:<domainname>:<local-port>");
|
|
}
|
|
if (!parts[1]) {
|
|
throw new Error("invalid arguments for --domains, should use the format <domainname> or <scheme>:<domainname>:<local-port>");
|
|
}
|
|
|
|
parts[0] = parts[0].toLowerCase();
|
|
parts[1] = parts[1].toLowerCase().replace(/(\/\/)?/, '');
|
|
parts[2] = parseInt(parts[2], 10) || 0;
|
|
|
|
memo.push({
|
|
protocol: parts[0]
|
|
, hostname: parts[1]
|
|
, port: parts[2]
|
|
});
|
|
}
|
|
|
|
vals.map(function (val) {
|
|
return parseProxy(val);
|
|
});
|
|
|
|
return memo;
|
|
}
|
|
function collectProxies(val, memo) {
|
|
var vals = val.split(/,/g);
|
|
|
|
function parseProxy(location) {
|
|
// john.example.com
|
|
// https:3443
|
|
// http:john.example.com:3000
|
|
// http://john.example.com:3000
|
|
var parts = location.split(':');
|
|
var dual = false;
|
|
if (1 === parts.length) {
|
|
// john.example.com -> :john.example.com:0
|
|
parts[1] = parts[0];
|
|
|
|
parts[0] = '';
|
|
parts[2] = 0;
|
|
|
|
dual = true;
|
|
}
|
|
else if (2 === parts.length) {
|
|
// https:3443 -> https:*:3443
|
|
parts[2] = parts[1];
|
|
|
|
parts[1] = '*';
|
|
}
|
|
|
|
parts[0] = parts[0].toLowerCase();
|
|
parts[1] = parts[1].toLowerCase().replace(/(\/\/)?/, '') || '*';
|
|
parts[2] = parseInt(parts[2], 10) || 0;
|
|
if (!parts[2]) {
|
|
// TODO grab OS list of standard ports?
|
|
if (!parts[0] || 'http' === parts[0]) {
|
|
parts[2] = 80;
|
|
}
|
|
else if ('https' === parts[0]) {
|
|
parts[2] = 443;
|
|
}
|
|
else {
|
|
throw new Error("port must be specified - ex: tls:*:1337");
|
|
}
|
|
}
|
|
|
|
memo.push({
|
|
protocol: parts[0] || 'https'
|
|
, hostname: parts[1]
|
|
, port: parts[2] || 443
|
|
});
|
|
|
|
if (dual) {
|
|
memo.push({
|
|
protocol: 'http'
|
|
, hostname: parts[1]
|
|
, port: 80
|
|
});
|
|
}
|
|
}
|
|
|
|
vals.map(function (val) {
|
|
return parseProxy(val);
|
|
});
|
|
|
|
return memo;
|
|
}
|
|
|
|
var program = require('commander');
|
|
program
|
|
.version(pkg.version)
|
|
//.command('jsurl <url>')
|
|
.arguments('<url>')
|
|
.action(function (url) {
|
|
program.url = url;
|
|
})
|
|
.option('-k --insecure', 'Allow TLS connections to a Telebit Relay without valid certs (rejectUnauthorized: false)')
|
|
.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
|
|
.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, [ ])
|
|
.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`)')
|
|
.option('--relay <URL>', 'the domain (or ip address) at which you are running Telebit Relay (the proxy)') // --proxy
|
|
.option('--secret <STRING>', 'the same secret used by the Telebit Relay (used for JWT authentication)')
|
|
.option('--token <STRING>', 'a pre-generated token for use with the Telebit Relay (instead of generating one with --secret)')
|
|
.option('--agree-tos', 'agree to the Telebit Terms of Service (requires user validation)')
|
|
.option('--email <EMAIL>', 'email address (or cloud address) for user validation')
|
|
.option('--oauth3-url <URL>', 'Cloud Authentication to use (default: https://oauth3.org)')
|
|
.parse(process.argv)
|
|
;
|
|
|
|
|
|
program.locals = (program.locals || []).concat(program.domains || []);
|
|
program.locals.forEach(function (proxy) {
|
|
// Create a map from which we can derive a list of all domains we want forwarded to us.
|
|
if (proxy.hostname && proxy.hostname !== '*') {
|
|
domainsMap[proxy.hostname] = true;
|
|
}
|
|
|
|
// Create a map of which port different protocols should be forwarded to, allowing for specific
|
|
// domains to go to different ports if need be (though that only works for HTTP and HTTPS).
|
|
if (proxy.protocol && proxy.port) {
|
|
services[proxy.protocol] = services[proxy.protocol] || {};
|
|
|
|
if (/http/.test(proxy.protocol) && proxy.hostname && proxy.hostname !== '*') {
|
|
services[proxy.protocol][proxy.hostname] = proxy.port;
|
|
}
|
|
else {
|
|
if (services[proxy.protocol]['*'] && services[proxy.protocol]['*'] !== proxy.port) {
|
|
console.error('cannot forward generic', proxy.protocol, 'traffic to multiple ports');
|
|
process.exit(1);
|
|
}
|
|
else {
|
|
services[proxy.protocol]['*'] = proxy.port;
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
if (Object.keys(domainsMap).length === 0) {
|
|
console.error('no domains specified');
|
|
process.exit(1);
|
|
return;
|
|
}
|
|
|
|
// Make sure we have generic ports for HTTP and HTTPS
|
|
services.https = services.https || {};
|
|
services.https['*'] = services.https['*'] || 8443;
|
|
|
|
services.http = services.http || {};
|
|
services.http['*'] = services.http['*'] || services.https['*'];
|
|
|
|
program.services = services;
|
|
*/
|
|
|
|
}());
|