goldilocks.js/lib/ddns/dns-ctrl.js

98 lines
2.9 KiB
JavaScript

'use strict';
module.exports.create = function (deps, conf) {
function dnsType(addr) {
if (/^\d+\.\d+\.\d+\.\d+$/.test(addr)) {
return 'A';
}
if (-1 !== addr.indexOf(':') && /^[a-f:\.\d]+$/i.test(addr)) {
return 'AAAA';
}
}
async function setDeviceAddress(session, addr) {
var directives = await deps.OAUTH3.discover(session.token.aud);
// Set the address of the device to our public address.
await deps.request({
url: deps.OAUTH3.url.normalize(directives.api)+'/api/com.daplie.domains/acl/devices/' + conf.device.hostname
, method: 'POST'
, headers: {
'Authorization': 'Bearer ' + session.refresh_token
, 'Accept': 'application/json; charset=utf-8'
}
, json: {
addresses: [
{ value: addr, type: dnsType(addr) }
]
}
});
// Then update all of the records attached to our hostname, first removing the old records
// to remove the reference to the old address, then creating new records for the same domains
// using our new address.
var allDns = deps.OAUTH3.api(directives.api, {session: session, api: 'dns.list'});
var ourDomains = allDns.filter(function (record) {
return record.device === conf.device.hostname;
}).map(function (record) {
var zoneSplit = record.zone.split('.');
return {
tld: zoneSplit.slice(1).join('.')
, sld: zoneSplit[0]
, sub: record.host.slice(0, -(record.zone.length + 1))
};
});
var common = {
api: 'devices.detach'
, session: session
, device: conf.device.hostname
};
await deps.PromiseA.all(ourDomains.map(function (record) {
return deps.OAUTH3.api(directives.api, Object.assign({}, common, record));
}));
common = {
api: 'devices.attach'
, session: session
, device: conf.device.hostname
, ip: addr
, ttl: 300
};
await deps.PromiseA.all(ourDomains.map(function (record) {
return deps.OAUTH3.api(directives.api, Object.assign({}, common, record));
}));
}
async function getDeviceAddresses(session) {
var directives = await deps.OAUTH3.discover(session.token.aud);
var result = await deps.request({
url: deps.OAUTH3.url.normalize(directives.api)+'/api/org.oauth3.dns/acl/devices'
, method: 'GET'
, headers: {
'Authorization': 'Bearer ' + session.refresh_token
, 'Accept': 'application/json; charset=utf-8'
}
, json: true
});
if (!result.body) {
throw new Error('No response body in request for device addresses');
}
if (result.body.error) {
throw Object.assign(new Error('error getting device list'), result.body.error);
}
var dev = result.body.devices.filter(function (dev) {
return dev.name === conf.device.hostname;
})[0];
return (dev || {}).addresses || [];
}
return {
getDeviceAddresses: getDeviceAddresses
, setDeviceAddress: setDeviceAddress
, };
};