Files
cloudron-box/src/dns/digitalocean.js
Girish Ramakrishnan 3745e96a6f domain -> fqdn
2017-06-15 19:56:04 -07:00

217 lines
8.8 KiB
JavaScript

'use strict';
exports = module.exports = {
upsert: upsert,
get: get,
del: del,
waitForDns: require('./waitfordns.js'),
verifyDnsConfig: verifyDnsConfig
};
var assert = require('assert'),
async = require('async'),
constants = require('../constants.js'),
debug = require('debug')('box:dns/digitalocean'),
dns = require('dns'),
SubdomainError = require('../subdomains.js').SubdomainError,
superagent = require('superagent'),
util = require('util');
var DIGITALOCEAN_ENDPOINT = 'https://api.digitalocean.com';
function formatError(response) {
return util.format('DigitalOcean DNS error [%s] %j', response.statusCode, response.body);
}
function getInternal(dnsConfig, zoneName, subdomain, type, callback) {
assert.strictEqual(typeof dnsConfig, 'object');
assert.strictEqual(typeof zoneName, 'string');
assert.strictEqual(typeof subdomain, 'string');
assert.strictEqual(typeof type, 'string');
assert.strictEqual(typeof callback, 'function');
superagent.get(DIGITALOCEAN_ENDPOINT + '/v2/domains/' + zoneName + '/records')
.set('Authorization', 'Bearer ' + dnsConfig.token)
.timeout(30 * 1000)
.end(function (error, result) {
if (error && !error.response) return callback(error);
if (result.statusCode === 404) return callback(new SubdomainError(SubdomainError.NOT_FOUND, formatError(result)));
if (result.statusCode === 403 || result.statusCode === 401) return callback(new SubdomainError(SubdomainError.ACCESS_DENIED, formatError(result)));
if (result.statusCode !== 200) return callback(new SubdomainError(SubdomainError.EXTERNAL_ERROR, formatError(result)));
var tmp = result.body.domain_records.filter(function (record) {
return (record.type === type && record.name === subdomain);
});
debug('getInternal: %j', tmp);
return callback(null, tmp);
});
}
function upsert(dnsConfig, zoneName, subdomain, type, values, callback) {
assert.strictEqual(typeof dnsConfig, 'object');
assert.strictEqual(typeof zoneName, 'string');
assert.strictEqual(typeof subdomain, 'string');
assert.strictEqual(typeof type, 'string');
assert(util.isArray(values));
assert.strictEqual(typeof callback, 'function');
subdomain = subdomain || '@';
debug('upsert: %s for zone %s of type %s with values %j', subdomain, zoneName, type, values);
getInternal(dnsConfig, zoneName, subdomain, type, function (error, result) {
if (error) return callback(error);
// used to track available records to update instead of create
var i = 0;
async.eachSeries(values, function (value, callback) {
var priority = null;
if (type === 'MX') {
priority = value.split(' ')[0];
value = value.split(' ')[1];
}
var data = {
type: type,
name: subdomain,
data: value,
priority: priority
};
if (i >= result.length) {
superagent.post(DIGITALOCEAN_ENDPOINT + '/v2/domains/' + zoneName + '/records')
.set('Authorization', 'Bearer ' + dnsConfig.token)
.send(data)
.timeout(30 * 1000)
.end(function (error, result) {
if (error && !error.response) return callback(error);
if (result.statusCode === 403 || result.statusCode === 401) return callback(new SubdomainError(SubdomainError.ACCESS_DENIED, formatError(result)));
if (result.statusCode === 422) return callback(new SubdomainError(SubdomainError.BAD_FIELD, result.body.message));
if (result.statusCode !== 201) return callback(new SubdomainError(SubdomainError.EXTERNAL_ERROR, formatError(result)));
return callback(null);
});
} else {
superagent.put(DIGITALOCEAN_ENDPOINT + '/v2/domains/' + zoneName + '/records/' + result[i].id)
.set('Authorization', 'Bearer ' + dnsConfig.token)
.send(data)
.timeout(30 * 1000)
.end(function (error, result) {
// increment, as we have consumed the record
++i;
if (error && !error.response) return callback(error);
if (result.statusCode === 403 || result.statusCode === 401) return callback(new SubdomainError(SubdomainError.ACCESS_DENIED, formatError(result)));
if (result.statusCode === 422) return callback(new SubdomainError(SubdomainError.BAD_FIELD, result.body.message));
if (result.statusCode !== 200) return callback(new SubdomainError(SubdomainError.EXTERNAL_ERROR, formatError(result)));
return callback(null);
});
}
}, function (error) {
if (error) return callback(error);
callback(null, 'unused');
});
});
}
function get(dnsConfig, zoneName, subdomain, type, callback) {
assert.strictEqual(typeof dnsConfig, 'object');
assert.strictEqual(typeof zoneName, 'string');
assert.strictEqual(typeof subdomain, 'string');
assert.strictEqual(typeof type, 'string');
assert.strictEqual(typeof callback, 'function');
subdomain = subdomain || '@';
getInternal(dnsConfig, zoneName, subdomain, type, function (error, result) {
if (error) return callback(error);
// We only return the value string
var tmp = result.map(function (record) { return record.data; });
debug('get: %j', tmp);
return callback(null, tmp);
});
}
function del(dnsConfig, zoneName, subdomain, type, values, callback) {
assert.strictEqual(typeof dnsConfig, 'object');
assert.strictEqual(typeof zoneName, 'string');
assert.strictEqual(typeof subdomain, 'string');
assert.strictEqual(typeof type, 'string');
assert(util.isArray(values));
assert.strictEqual(typeof callback, 'function');
subdomain = subdomain || '@';
getInternal(dnsConfig, zoneName, subdomain, type, function (error, result) {
if (error) return callback(error);
if (result.length === 0) return callback(null);
var tmp = result.filter(function (record) { return values.some(function (value) { return value === record.data; }); });
debug('del: %j', tmp);
if (tmp.length === 0) return callback(null);
// FIXME we only handle the first one currently
superagent.del(DIGITALOCEAN_ENDPOINT + '/v2/domains/' + zoneName + '/records/' + tmp[0].id)
.set('Authorization', 'Bearer ' + dnsConfig.token)
.timeout(30 * 1000)
.end(function (error, result) {
if (error && !error.response) return callback(error);
if (result.statusCode === 404) return callback(null);
if (result.statusCode === 403 || result.statusCode === 401) return callback(new SubdomainError(SubdomainError.ACCESS_DENIED, formatError(result)));
if (result.statusCode !== 204) return callback(new SubdomainError(SubdomainError.EXTERNAL_ERROR, formatError(result)));
debug('del: done');
return callback(null);
});
});
}
function verifyDnsConfig(dnsConfig, fqdn, zoneName, ip, callback) {
assert.strictEqual(typeof dnsConfig, 'object');
assert.strictEqual(typeof fqdn, 'string');
assert.strictEqual(typeof zoneName, 'string');
assert.strictEqual(typeof ip, 'string');
assert.strictEqual(typeof callback, 'function');
var credentials = {
provider: dnsConfig.provider,
token: dnsConfig.token
};
if (process.env.BOX_ENV === 'test') return callback(null, credentials); // this shouldn't be here
dns.resolveNs(zoneName, function (error, nameservers) {
if (error && error.code === 'ENOTFOUND') return callback(new SubdomainError(SubdomainError.BAD_FIELD, 'Unable to resolve nameservers for this domain'));
if (error || !nameservers) return callback(new SubdomainError(SubdomainError.BAD_FIELD, error ? error.message : 'Unable to get nameservers'));
if (nameservers.map(function (n) { return n.toLowerCase(); }).indexOf('ns1.digitalocean.com') === -1) {
debug('verifyDnsConfig: %j does not contains DO NS', nameservers);
return callback(new SubdomainError(SubdomainError.BAD_FIELD, 'Domain nameservers are not set to Digital Ocean'));
}
const name = constants.ADMIN_LOCATION + (fqdn === zoneName ? '' : '.' + fqdn.slice(0, - zoneName.length - 1));
upsert(credentials, zoneName, name, 'A', [ ip ], function (error, changeId) {
if (error) return callback(error);
debug('verifyDnsConfig: A record added with change id %s', changeId);
callback(null, credentials);
});
});
}