271 lines
11 KiB
JavaScript
271 lines
11 KiB
JavaScript
import assert from 'node:assert';
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import constants from '../constants.js';
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import BoxError from '../boxerror.js';
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import logger from '../logger.js';
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import dig from '../dig.js';
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import dns from '../dns.js';
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import safe from '@cloudron/safetydance';
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import superagent from '@cloudron/superagent';
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import waitForDns from './waitfordns.js';
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const { log } = logger('dns/linode');
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const LINODE_ENDPOINT = 'https://api.linode.com/v4';
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function formatError(response) {
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return `Linode DNS error [${response.status}] ${response.text}`;
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}
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function removePrivateFields(domainObject) {
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delete domainObject.config.token;
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return domainObject;
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}
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function injectPrivateFields(newConfig, currentConfig) {
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if (!Object.hasOwn(newConfig, 'token')) newConfig.token = currentConfig.token;
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}
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async function getZoneId(domainConfig, zoneName) {
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assert.strictEqual(typeof domainConfig, 'object');
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assert.strictEqual(typeof zoneName, 'string');
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// returns 100 at a time
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const [error, response] = await safe(superagent.get(`${LINODE_ENDPOINT}/domains`)
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.set('Authorization', 'Bearer ' + domainConfig.token)
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.timeout(30 * 1000)
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.retry(5)
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.ok(() => true));
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if (error) throw new BoxError(BoxError.NETWORK_ERROR, error);
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if (response.status === 403 || response.status === 401) throw new BoxError(BoxError.ACCESS_DENIED, formatError(response));
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if (response.status !== 200) throw new BoxError(BoxError.EXTERNAL_ERROR, formatError(response));
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if (!Array.isArray(response.body.data)) throw new BoxError(BoxError.EXTERNAL_ERROR, 'Invalid response');
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const zone = response.body.data.find(d => d.domain === zoneName);
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if (!zone || !zone.id) throw new BoxError(BoxError.NOT_FOUND, 'Zone not found');
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log(`getZoneId: zone id of ${zoneName} is ${zone.id}`);
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return zone.id;
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}
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async function getZoneRecords(domainConfig, zoneName, name, type) {
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assert.strictEqual(typeof domainConfig, 'object');
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assert.strictEqual(typeof zoneName, 'string');
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assert.strictEqual(typeof name, 'string');
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assert.strictEqual(typeof type, 'string');
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log(`getInternal: getting dns records of ${zoneName} with ${name} and type ${type}`);
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const zoneId = await getZoneId(domainConfig, zoneName);
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let page = 0, more;
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let records = [];
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do {
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const url = `${LINODE_ENDPOINT}/domains/${zoneId}/records?page=${++page}`;
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const [error, response] = await safe(superagent.get(url)
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.set('Authorization', 'Bearer ' + domainConfig.token)
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.timeout(30 * 1000)
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.retry(5)
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.ok(() => true));
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if (error) throw new BoxError(BoxError.NETWORK_ERROR, error);
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if (response.status === 404) throw new BoxError(BoxError.NOT_FOUND, formatError(response));
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if (response.status === 403 || response.status === 401) throw new BoxError(BoxError.ACCESS_DENIED, formatError(response));
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if (response.status !== 200) throw new BoxError(BoxError.EXTERNAL_ERROR, formatError(response));
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records = records.concat(response.body.data.filter(function (record) {
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return (record.type === type && record.name === name);
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}));
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more = response.body.page !== response.body.pages;
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} while (more);
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return { zoneId, records };
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}
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async function get(domainObject, location, type) {
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assert.strictEqual(typeof domainObject, 'object');
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assert.strictEqual(typeof location, 'string');
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assert.strictEqual(typeof type, 'string');
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const domainConfig = domainObject.config,
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zoneName = domainObject.zoneName,
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name = dns.getName(domainObject, location, type) || '';
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const { records } = await getZoneRecords(domainConfig, zoneName, name, type);
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const tmp = records.map(function (record) { return record.target; });
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return tmp;
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}
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async function upsert(domainObject, location, type, values) {
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assert.strictEqual(typeof domainObject, 'object');
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assert.strictEqual(typeof location, 'string');
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assert.strictEqual(typeof type, 'string');
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assert(Array.isArray(values));
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const domainConfig = domainObject.config,
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zoneName = domainObject.zoneName,
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name = dns.getName(domainObject, location, type) || '';
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log('upsert: %s for zone %s of type %s with values %j', name, zoneName, type, values);
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const { zoneId, records } = await getZoneRecords(domainConfig, zoneName, name, type);
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let i = 0; // used to track available records to update instead of create
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const recordIds = [];
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for (const value of values) {
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const data = {
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type: type,
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ttl_sec: 300 // lowest
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};
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if (type === 'MX') {
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data.priority = parseInt(value.split(' ')[0], 10);
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data.target = value.split(' ')[1];
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} else if (type === 'TXT') {
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data.target = value.replace(/^"(.*)"$/, '$1'); // strip any double quotes
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} else {
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data.target = value;
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}
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if (i >= records.length) {
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data.name = name; // only set for new records
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const [error, response] = await safe(superagent.post(`${LINODE_ENDPOINT}/domains/${zoneId}/records`)
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.set('Authorization', 'Bearer ' + domainConfig.token)
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.send(data)
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.timeout(30 * 1000)
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.retry(5)
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.ok(() => true));
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if (error) throw new BoxError(BoxError.NETWORK_ERROR, error);
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if (response.status === 400) throw new BoxError(BoxError.BAD_FIELD, formatError(response));
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if (response.status === 403 || response.status === 401) throw new BoxError(BoxError.ACCESS_DENIED, formatError(response));
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if (response.status !== 200) throw new BoxError(BoxError.EXTERNAL_ERROR, formatError(response));
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recordIds.push(response.body.id);
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} else {
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const [error, response] = await safe(superagent.put(`${LINODE_ENDPOINT}/domains/${zoneId}/records/${records[i].id}`)
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.set('Authorization', 'Bearer ' + domainConfig.token)
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.send(data)
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.timeout(30 * 1000)
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.retry(5)
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.ok(() => true));
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if (error) throw new BoxError(BoxError.NETWORK_ERROR, error);
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if (response.status === 400) throw new BoxError(BoxError.BAD_FIELD, formatError(response));
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if (response.status === 403 || response.status === 401) throw new BoxError(BoxError.ACCESS_DENIED, formatError(response));
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if (response.status !== 200) throw new BoxError(BoxError.EXTERNAL_ERROR, formatError(response));
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++i;
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recordIds.push(response.body.id);
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}
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}
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for (let j = values.length + 1; j < records.length; j++) {
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const [error] = await safe(superagent.del(`${LINODE_ENDPOINT}/domains/${zoneId}/records/${records[j].id}`)
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.set('Authorization', 'Bearer ' + domainConfig.token)
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.timeout(30 * 1000)
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.retry(5)
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.ok(() => true));
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if (error) log(`upsert: error removing record ${records[j].id}: ${error.message}`);
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}
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}
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async function del(domainObject, location, type, values) {
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assert.strictEqual(typeof domainObject, 'object');
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assert.strictEqual(typeof location, 'string');
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assert.strictEqual(typeof type, 'string');
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assert(Array.isArray(values));
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const domainConfig = domainObject.config,
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zoneName = domainObject.zoneName,
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name = dns.getName(domainObject, location, type) || '';
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const { zoneId, records } = await getZoneRecords(domainConfig, zoneName, name, type);
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if (records.length === 0) return;
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const tmp = records.filter(function (record) { return values.some(function (value) { return value === record.target; }); });
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if (tmp.length === 0) return;
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for (const r of tmp) {
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const [error, response] = await safe(superagent.del(`${LINODE_ENDPOINT}/domains/${zoneId}/records/${r.id}`)
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.set('Authorization', 'Bearer ' + domainConfig.token)
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.timeout(30 * 1000)
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.retry(5)
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.ok(() => true));
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if (error && !error.response) throw new BoxError(BoxError.NETWORK_ERROR, error);
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if (response.status === 404) return;
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if (response.status === 403 || response.status === 401) throw new BoxError(BoxError.ACCESS_DENIED, formatError(response));
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if (response.status !== 200) throw new BoxError(BoxError.EXTERNAL_ERROR, formatError(response));
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}
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}
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async function wait(domainObject, subdomain, type, value, options) {
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assert.strictEqual(typeof domainObject, 'object');
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assert.strictEqual(typeof subdomain, 'string');
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assert.strictEqual(typeof type, 'string');
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assert.strictEqual(typeof value, 'string');
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assert(options && typeof options === 'object'); // { interval: 5000, times: 50000 }
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const fqdn = dns.fqdn(subdomain, domainObject.domain);
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await waitForDns(fqdn, domainObject.zoneName, type, value, options);
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}
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async function verifyDomainConfig(domainObject) {
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assert.strictEqual(typeof domainObject, 'object');
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const domainConfig = domainObject.config,
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zoneName = domainObject.zoneName;
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if (!domainConfig.token || typeof domainConfig.token !== 'string') throw new BoxError(BoxError.BAD_FIELD, 'token must be a non-empty string');
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if ('customNameservers' in domainConfig && typeof domainConfig.customNameservers !== 'boolean') throw new BoxError(BoxError.BAD_FIELD, 'customNameservers must be a boolean');
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const ip = '127.0.0.1';
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const credentials = {
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token: domainConfig.token,
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customNameservers: !!domainConfig.customNameservers
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};
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if (constants.TEST) return credentials; // this shouldn't be here
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const [error, nameservers] = await safe(dig.resolve(zoneName, 'NS', { timeout: 5000 }));
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if (error && error.code === 'ENOTFOUND') throw new BoxError(BoxError.BAD_FIELD, 'Unable to resolve nameservers for this domain');
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if (error || !nameservers) throw new BoxError(BoxError.BAD_FIELD, error ? error.message : 'Unable to get nameservers');
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if (nameservers.map(function (n) { return n.toLowerCase(); }).indexOf('ns1.linode.com') === -1) {
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log('verifyDomainConfig: %j does not contains linode NS', nameservers);
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if (!domainConfig.customNameservers) throw new BoxError(BoxError.BAD_FIELD, 'Domain nameservers are not set to Linode');
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}
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const location = 'cloudrontestdns';
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await upsert(domainObject, location, 'A', [ ip ]);
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log('verifyDomainConfig: Test A record added');
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await del(domainObject, location, 'A', [ ip ]);
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log('verifyDomainConfig: Test A record removed again');
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return credentials;
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}
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export default {
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removePrivateFields,
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injectPrivateFields,
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upsert,
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get,
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del,
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wait,
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verifyDomainConfig
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};
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