walnut.js/holepunch/beacon.js

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2015-02-12 09:40:37 +00:00
'use strict';
var PromiseA = require('bluebird').Promise
, updateIp = require('./helpers/update-ip.js').update
, request = PromiseA.promisifyAll(require('request'))
, requestAsync = PromiseA.promisify(require('request'))
, upnpForward = require('./helpers/upnp-forward').upnpForward
, pmpForward = require('./helpers/pmp-forward').pmpForward
, loopbackHttps = require('./loopback-https')
//, checkip = require('check-ip-address')
;
function openPort(ip, port) {
if (!/tcp|https|http/.test(port.protocol || 'tcp')) {
throw new Error('not yet supported \'' + port.protocol + '\'');
}
if (false === port.testable) {
return PromiseA.resolve();
}
return loopbackHttps.create(ip, port.private, port.public).then(function () {
console.log('success');
}).catch(function (err) {
// TODO test err
return upnpForward(port).catch(function (err) {
console.error('[ERROR] UPnP Port Forward');
console.error(err);
// TODO test err
return pmpForward(port);
}).then(function () {
return loopbackHttps.create(ip, port.private, port.public);
});
});
}
// 1. update dyndns
// 1.5. check ip every 5 min
// 2. loopback test on ip for http / https / ssh
// 3. if needed: discover gateway, map ports
function beacon(hostnames, ports) {
// test with
// dig -p 53 @redirect-www.org pi.nadal.daplie.com A
return updateIp({
updater: 'redirect-www.org'
, port: 65443
, ddns: hostnames.map(function (hostname) {
return { "name": hostname /*, "value": ipaddress, "type": "A"*/ };
})
}).then(function (data) {
var promises = [];
console.log("Updated DynDNS");
console.log(data);
ports.forEach(function (port) {
promises.push(openPort(JSON.parse(data)[0].answers[0] || hostname, port));
});
return PromiseA.all(promises);
}).then(function () {
console.log('opened ports');
});
/*
request.getAsync('http://checkip.hellabit.com').spread(function (resp, data) {
console.log("External IP is", data);
}).then(function () {
return upnpForward().catch(function (err) {
console.error('ERROR: UPnP failure:');
console.error(err);
});
}).then(function () {
return pmpForward().catch(function (err) {
console.error('TODO: Notify user that their router is not compatible');
});
});
// TODO test roundtrip
*/
}
//setInterval(beacon, 5 * 60 * 1000);
exports.run = beacon;