127 lines
3.7 KiB
JavaScript
127 lines
3.7 KiB
JavaScript
'use strict';
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module.exports.create = function (opts) {
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// opts = { filepath };
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var engine = { db: null };
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var db = require(opts.filepath);
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var crypto = require('crypto');
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db.primaryNameservers.forEach(function (ns) {
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if (!ns.id) {
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ns.id = crypto.randomBytes(16).toString('hex');
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}
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});
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db.zones.forEach(function (zone) {
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if (!zone.name) {
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zone.name = zone.id;
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zone.id = null;
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}
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if (!zone.id) {
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zone.id = crypto.randomBytes(16).toString('hex');
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}
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});
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db.records.forEach(function (record) {
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if (!record.id) {
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record.id = crypto.randomBytes(16).toString('hex');
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}
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});
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require('fs').writeFileSync(opts.filepath, JSON.stringify(db, null, 2));
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engine.primaryNameservers = db.primaryNameservers;
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engine.zoneToSoa = function (domain) {
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var nameservers = domain.vanityNs || engine.primaryNameservers.map(function (n) { return n.name; });
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var index = Math.floor(Math.random() * nameservers.length) % nameservers.length;
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var nameserver = nameservers[index];
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return {
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name: domain.name
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, typeName: 'SOA'
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, className: 'IN'
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, ttl: domain.ttl || 60
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// nameserver -- select an NS at random if they're all in sync
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, primary: nameserver
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, name_server: nameserver
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// admin -- email address or domain for admin
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, admin: domain.admin || ('admin.' + domain.name)
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, email_addr: domain.admin || ('admin.' + domain.name)
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// serial -- the version, for cache-busting of secondary nameservers. suggested format: YYYYMMDDnn
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, serial: domain.serial || Math.round((domain.updatedAt || domain.createdAt || 0) / 1000)
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, sn: domain.serial || Math.round((domain.updatedAt || domain.createdAt || 0) / 1000)
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// refresh -- only used when nameservers following the DNS NOTIFY spec talk
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, refresh: domain.refresh || 1800
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, ref: domain.refresh || 1800
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// retry -- only used when nameservers following the DNS NOTIFY spec talk
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, retry: domain.retry || 600
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, ret: domain.retry || 600
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// expiration -- how long other nameservers should continue when the primary goes down
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, expiration: domain.expiration || 2419200
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, ex: domain.expiration || 2419200
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// minimum -- how long to cache a non-existent domain (also the default ttl for BIND)
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, minimum: domain.minimum || 5
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, nx: domain.minimum || 5
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};
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};
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engine.peers = {
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all: function (cb) {
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process.nextTick(function () {
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cb(null, db.primaryNameservers);
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});
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}
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};
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engine.zones = {
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all: function (cb) {
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process.nextTick(function () {
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cb(null, db.zones.slice(0));
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});
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}
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, get: function (queries, cb) {
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if (!Array.isArray(queries)) {
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queries = queries.names.map(function (n) {
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return { name: n };
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});
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}
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var myDomains = db.zones.filter(function (d) {
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return queries.some(function (q) {
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return d.name.toLowerCase() === q.name;
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});
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});
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process.nextTick(function () {
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cb(null, myDomains);
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});
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}
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};
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engine.records = {
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all: function (cb) {
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process.nextTick(function () {
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cb(null, db.records.slice(0));
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});
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}
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, get: function (query, cb) {
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var myRecords = db.records.slice(0).filter(function (r) {
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if ('string' !== typeof r.name) {
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return false;
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}
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// TODO use IN in masterquest (or implement OR)
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// Only return single-level wildcard?
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if (query.name === r.name || ('*.' + query.name.split('.').slice(1).join('.')) === r.name) {
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return true;
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}
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});
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process.nextTick(function () {
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cb(null, myRecords);
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});
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}
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};
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return engine;
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};
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