demos, stubs, and scraps
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'use strict';
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var PromiseA = require('bluebird').Promise;
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var updateIp = require('./helpers/update-ip.js').update;
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var request = PromiseA.promisifyAll(require('request'));
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var requestAsync = PromiseA.promisify(require('request'));
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var upnpForward = require('./helpers/upnp-forward').upnpForward;
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var pmpForward = require('./helpers/pmp-forward').pmpForward;
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var loopbackHttps = require('./loopback-https');
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//var checkip = require('check-ip-address');
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function openPort(ip, port) {
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if (!/tcp|https|http/.test(port.protocol || 'tcp')) {
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throw new Error('not yet supported \'' + port.protocol + '\'');
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}
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if (false === port.testable) {
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return PromiseA.resolve();
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}
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return loopbackHttps.create(ip, port.private, port.public).then(function () {
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console.log('success');
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}).catch(function (err) {
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// TODO test err
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return upnpForward(port).catch(function (err) {
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console.error('[ERROR] UPnP Port Forward');
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console.error(err);
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// TODO test err
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return pmpForward(port);
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}).then(function () {
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return loopbackHttps.create(ip, port.private, port.public);
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});
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});
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}
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// 1. update dyndns
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// 1.5. check ip every 5 min
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// 2. loopback test on ip for http / https / ssh
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// 3. if needed: discover gateway, map ports
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function beacon(hostnames, ports) {
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// test with
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// dig -p 53 @redirect-www.org pi.nadal.daplie.com A
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return updateIp({
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updater: 'redirect-www.org'
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, port: 65443
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, ddns: hostnames.map(function (hostname) {
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return { "name": hostname /*, "value": ipaddress, "type": "A"*/ };
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})
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}).then(function (data) {
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var promises = [];
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console.log("Updated DynDNS");
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console.log(data);
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ports.forEach(function (port) {
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promises.push(openPort(JSON.parse(data)[0].answers[0] || hostname, port));
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});
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return PromiseA.all(promises);
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}).then(function () {
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console.log('opened ports');
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});
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/*
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request.getAsync('http://checkip.hellabit.com').spread(function (resp, data) {
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console.log("External IP is", data);
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}).then(function () {
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return upnpForward().catch(function (err) {
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console.error('ERROR: UPnP failure:');
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console.error(err);
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});
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}).then(function () {
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return pmpForward().catch(function (err) {
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console.error('TODO: Notify user that their router is not compatible');
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});
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});
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// TODO test roundtrip
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*/
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}
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//setInterval(beacon, 5 * 60 * 1000);
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exports.run = beacon;
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'use strict';
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var PromiseA = require('bluebird').Promise;
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var natpmp = require('nat-pmp');
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var exec = require('child_process').exec;
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exports.pmpForward = function (port) {
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return new PromiseA(function (resolve, reject) {
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exec('ip route show default', function (err, stdout, stderr) {
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var gw;
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if (err || stderr) { reject(err || stderr); return; }
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// default via 192.168.1.1 dev eth0
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gw = stdout.replace(/^default via (\d+\.\d+\.\d+\.\d+) dev[\s\S]+/m, '$1');
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console.log('Possible PMP gateway is', gw);
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// create a "client" instance connecting to your local gateway
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var client = natpmp.connect(gw);
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function setPortForward() {
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// setup a new port mapping
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client.portMapping({
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private: port.private || port.public
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, public: port.public || port.private
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, ttl: port.ttl || 0 // 600
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}, function (err, info) {
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if (err) {
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reject(err);
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return;
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}
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console.log(info);
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// {
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// type: 'tcp',
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// epoch: 8922109,
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// private: 22,
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// public: 2222,
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// ...
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// }
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resolve();
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});
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}
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// explicitly ask for the current external IP address
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setTimeout(function () {
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client.externalIp(function (err, info) {
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if (err) throw err;
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console.log('Current external IP address: %s', info.ip.join('.'));
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setPortForward();
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});
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});
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});
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});
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};
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function usage() {
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console.warn("");
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console.warn("node helpers/pmp-forward [public port] [private port] [ttl]");
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console.warn("");
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}
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function run() {
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var pubPort = parseInt(process.argv[2], 10) || 0;
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var privPort = parseInt(process.argv[3], 10) || pubPort;
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var ttl = parseInt(process.argv[4], 10) || 0;
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var options = { public: pubPort, private: privPort, ttl: ttl };
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if (!pubPort) {
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usage();
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return;
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}
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exports.pmpForward(options).then(function () {
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console.log('done');
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});
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}
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if (require.main === module) {
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run();
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}
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'use strict';
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var PromiseA = require('bluebird').Promise;
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var natUpnp = require('nat-upnp');
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exports.upnpForward = function (port) {
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return natUpnp.createClient({ timeout: 1800 }).then(function (client) {
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return client.portMapping({
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public: port.public,
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private: port.private || port.public,
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ttl: port.ttl || 0
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})/*.then(function () {
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var promitter = client.getMappings();
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promitter.on('entry', function (entry, i) {
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console.log('entry', i);
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console.log(entry);
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}).then(function (mappings) {
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console.log('mappings');
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console.log(mappings);
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});
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return promitter;
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})*/;
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});
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};
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/*
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client.portUnmapping({
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public: 80
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});
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.findGateway().then(function (stuff) {
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console.log('[a] gateway');
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console.log(stuff.gateway);
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console.log('[a] address');
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console.log(stuff.address);
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}).then(function () {
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return client
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*/
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/*
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client.getMappings({ local: true }, function(err, results) {
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console.log('local mappings', results);
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});
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client.externalIp(function(err, ip) {
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console.log('ext-ip', ip);
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});
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*/
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function usage() {
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console.warn("");
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console.warn("node helpers/upnp-forward [public port] [private port] [ttl]");
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console.warn("");
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}
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function run() {
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var pubPort = parseInt(process.argv[2], 10) || 0;
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var privPort = parseInt(process.argv[3], 10) || pubPort;
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var ttl = parseInt(process.argv[4], 10) || 0;
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var options = { public: pubPort, private: privPort, ttl: ttl };
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if (!pubPort) {
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usage();
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return;
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}
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exports.upnpForward(options).then(function () {
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console.log('done');
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}).catch(function (err) {
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console.error('ERROR');
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console.error(err);
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throw err;
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});
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}
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if (require.main === module) {
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run();
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return;
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}
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'use strict';
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var https = require('https');
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var path = require('path');
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var fs = require('fs');
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var PromiseA = global.Promise || require('bluebird').Promise;
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exports.create = function (ip, localPort, externalPort) {
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return new PromiseA(function (resolve, reject) {
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var token = Math.random().toString(16).split('.')[1];
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var tokenPath = Math.random().toString(16).split('.')[1];
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var options;
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var server;
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var options;
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var certsPath = path.join(__dirname, 'certs', 'server');
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var caCertsPath = path.join(__dirname, 'certs', 'ca');
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function testConnection() {
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var awesome = false;
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var timetok;
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var webreq;
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var options = {
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// not hostname because we set headers.host on our own
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host: ip
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, headers: {
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// whatever's on the fake cert
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'Host': 'redirect-www.org'
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}
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, port: externalPort
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, path: '/' + tokenPath
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, ca: fs.readFileSync(path.join(caCertsPath, 'my-root-ca.crt.pem'))
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};
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options.agent = new https.Agent(options);
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timetok = setTimeout(function () {
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reject(new Error("timed out while testing NAT loopback for port " + externalPort));
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}, 2000);
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function finishHim(err) {
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clearTimeout(timetok);
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server.close(function () {
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if (!err && awesome) {
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resolve();
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}
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});
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if (err || !awesome) {
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if (err) {
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reject(err);
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}
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else if (!awesome) {
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reject(new Error("loopback failed. Why? here's my best guess: "
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+ "the ssl cert matched, so you've probably got two boxes and this isn't the right one"));
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}
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return;
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}
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}
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webreq = https.request(options, function(res) {
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res.on('data', function (resToken) {
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if (resToken.toString() === token) {
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awesome = true;
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return;
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}
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});
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res.on('error', function (err) {
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console.error('[ERROR] https.request.response');
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console.error(err);
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finishHim(new Error("loopback failed. Why? here's my best guess: "
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+ "the connection was interrupted"));
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});
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res.on('end', function () {
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finishHim();
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});
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});
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webreq.on('error', function (err) {
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console.error('[ERROR] https.request');
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console.error(err);
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if (/ssl|cert|chain/i.test(err.message || err.toString())) {
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finishHim(new Error("loopback failed. Why? here's my best guess: "
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+ "the ssl cert validation may have failed (might port-forward to the wrong box)"));
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} else {
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finishHim(new Error("loopback failed. Why? here's my best guess: "
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+ "port forwarding isn't configured for " + ip + ":" + externalPort + " to " + localPort));
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}
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});
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webreq.end();
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}
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//
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// SSL Certificates
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//
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options = {
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key: fs.readFileSync(path.join(certsPath, 'my-server.key.pem'))
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, ca: [ fs.readFileSync(path.join(caCertsPath, 'my-root-ca.crt.pem')) ]
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, cert: fs.readFileSync(path.join(certsPath, 'my-server.crt.pem'))
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, requestCert: false
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, rejectUnauthorized: false
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};
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//
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// Serve an Express App securely with HTTPS
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//
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server = https.createServer(options);
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function listen(app) {
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server.on('request', app);
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server.listen(localPort, function () {
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localPort = server.address().port;
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setTimeout(testConnection, 2000);
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});
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}
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listen(function (req, res) {
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if (('/' + tokenPath) === req.url) {
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res.end(token);
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return;
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}
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res.end('loopback failure');
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});
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});
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};
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'use strict';
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//var config = require('./device.json');
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// require('ssl-root-cas').inject();
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// TODO try SNI loopback.example.com as result of api.ipify.com with loopback token
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function phoneHome() {
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var holepunch = require('./holepunch/beacon');
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var ports;
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ports = [
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{ private: 65022
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, public: 65022
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, protocol: 'tcp'
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, ttl: 0
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, test: { service: 'ssh' }
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, testable: false
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}
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, { private: 650443
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, public: 650443
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, protocol: 'tcp'
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, ttl: 0
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, test: { service: 'https' }
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}
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, { private: 65080
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, public: 65080
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, protocol: 'tcp'
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, ttl: 0
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, test: { service: 'http' }
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}
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];
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// TODO return a middleware
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holepunch.run(require('./redirects.json').reduce(function (all, redirect) {
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if (!all[redirect.from.hostname]) {
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all[redirect.from.hostname] = true;
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all.push(redirect.from.hostname);
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}
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if (!all[redirect.to.hostname]) {
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all[redirect.to.hostname] = true;
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all.push(redirect.to.hostname);
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}
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return all;
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}, []), ports).catch(function () {
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console.error("Couldn't phone home. Oh well");
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});
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}
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