58 lines
2.3 KiB
JavaScript
58 lines
2.3 KiB
JavaScript
'use strict';
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exports = module.exports = {
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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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constants = require('./constants.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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paths = require('./paths.js'),
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safe = require('safetydance'),
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settings = require('./settings.js'),
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sysinfo = require('./sysinfo.js');
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// called for dynamic dns setups where we have to update the IP
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async function sync(auditSource) {
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assert.strictEqual(typeof auditSource, 'object');
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const ipv4 = await sysinfo.getServerIPv4();
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const ipv6 = await sysinfo.getServerIPv6();
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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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if (info.ip) { // legacy cache file
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info.ipv4 = info.ip;
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delete info.ip;
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}
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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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if (ipv4Changed) await dns.upsertDnsRecords(constants.DASHBOARD_LOCATION, settings.dashboardDomain(), 'A', [ ipv4 ]);
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if (ipv6Changed) await dns.upsertDnsRecords(constants.DASHBOARD_LOCATION, settings.dashboardDomain(), 'AAAA', [ ipv6 ]);
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const result = await apps.list();
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for (const app of result) {
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// do not change state of installing apps since apptask will error if dns record already exists
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if (app.installationState !== apps.ISTATE_INSTALLED) continue;
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if (ipv4Changed) await dns.upsertDnsRecords(app.subdomain, app.domain, 'A', [ ipv4 ]);
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if (ipv6Changed) await dns.upsertDnsRecords(app.subdomain, app.domain, 'AAAA', [ ipv6 ]);
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}
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debug('refreshDNS: updated apps');
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await eventlog.add(eventlog.ACTION_DYNDNS_UPDATE, auditSource, { 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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