84 lines
3.5 KiB
JavaScript
84 lines
3.5 KiB
JavaScript
'use strict';
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exports = module.exports = {
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refreshDns,
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sync
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};
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const apps = require('./apps.js'),
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assert = require('assert'),
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dashboard = require('./dashboard.js'),
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debug = require('debug')('box:dyndns'),
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dns = require('./dns.js'),
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eventlog = require('./eventlog.js'),
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network = require('./network.js'),
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paths = require('./paths.js'),
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safe = require('safetydance'),
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tasks = require('./tasks.js');
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// FIXME: this races with apptask. can result in a conflict if apptask is doing some dns operation and this code changes entries
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async function refreshDns(auditSource) {
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assert.strictEqual(typeof auditSource, 'object');
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const ipv4 = await network.getIPv4();
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const ipv6 = await network.getIPv6();
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const info = safe.JSON.parse(safe.fs.readFileSync(paths.DYNDNS_INFO_FILE, 'utf8')) || { ipv4: null, ipv6: null };
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const ipv4Changed = info.ipv4 !== ipv4;
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const ipv6Changed = ipv6 && info.ipv6 !== ipv6; // both should be RFC 5952 format
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if (!ipv4Changed && !ipv6Changed) {
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debug(`refreshDns: no change in IP. ipv4: ${ipv4} ipv6: ${ipv6}`);
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return;
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}
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debug(`refreshDns: updating IP from ${info.ipv4} to ipv4: ${ipv4} (changed: ${ipv4Changed}) ipv6: ${ipv6} (changed: ${ipv6Changed})`);
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// update dns in a separate task so we can have trackable logs
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const taskId = await tasks.add(tasks.TASK_SYNC_DYNDNS, [ ipv4Changed ? ipv4 : null, ipv6Changed ? ipv6 : null, auditSource ]);
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tasks.startTask(taskId, {}, async function (error) {
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if (error) {
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await eventlog.add(eventlog.ACTION_DYNDNS_UPDATE, auditSource, { taskId, fromIpv4: info.ipv4, fromIpv6: info.ipv6, toIpv4: ipv4, toIpv6: ipv6, errorMessage: error.message });
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return;
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}
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await eventlog.add(eventlog.ACTION_DYNDNS_UPDATE, auditSource, { taskId, fromIpv4: info.ipv4, fromIpv6: info.ipv6, toIpv4: ipv4, toIpv6: ipv6 });
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info.ipv4 = ipv4;
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info.ipv6 = ipv6;
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safe.fs.writeFileSync(paths.DYNDNS_INFO_FILE, JSON.stringify(info), 'utf8');
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});
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return taskId;
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}
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async function sync(ipv4, ipv6, auditSource, progressCallback) {
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assert(ipv4 === null || typeof ipv4 === 'string');
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assert(ipv6 === null || typeof ipv6 === 'string');
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assert.strictEqual(typeof auditSource, 'object');
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assert.strictEqual(typeof progressCallback, 'function');
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let percent = 10;
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const { domain:dashboardDomain, fqdn:dashboardFqdn, subdomain:dashboardSubdomain } = await dashboard.getLocation();
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progressCallback({ percent, message: `Updating dashboard domain ${dashboardFqdn}`});
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if (ipv4) await safe(dns.upsertDnsRecords(dashboardSubdomain, dashboardDomain, 'A', [ ipv4 ]), { debug });
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if (ipv6) await safe(dns.upsertDnsRecords(dashboardSubdomain, dashboardDomain, 'AAAA', [ ipv6 ]), { debug });
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const result = await apps.list();
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for (const app of result) {
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percent += Math.round(90/result.length);
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progressCallback({ percent, message: `Updating app ${app.fqdn}`});
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const locations = [{ domain: app.domain, subdomain: app.subdomain }]
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.concat(app.secondaryDomains)
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.concat(app.redirectDomains)
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.concat(app.aliasDomains);
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for (const location of locations) {
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if (ipv4) await safe(dns.upsertDnsRecords(location.subdomain, location.domain, 'A', [ ipv4 ]), { debug });
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if (ipv6) await safe(dns.upsertDnsRecords(location.subdomain, location.domain, 'AAAA', [ ipv6 ], { debug }));
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}
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}
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progressCallback({ percent: 100, message: 'refreshDNS: updated apps' });
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}
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