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777 lines
22 KiB
JavaScript
777 lines
22 KiB
JavaScript
'use strict';
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var conf = {
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registrars: [],
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dns_providers: [],
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domains: [],
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domain_names: [],
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};
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var defaultArgs = [];
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function initialize() {
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conf = {
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registrars: [],
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dns_providers: [],
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domains: [],
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};
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defaultArgs = [];
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}
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function NewRegistrar(name, type, meta) {
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if (type) {
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type == 'MANUAL';
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}
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var reg = { name: name, type: type, meta: meta };
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conf.registrars.push(reg);
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return name;
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}
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function NewDnsProvider(name, type, meta) {
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if (typeof meta === 'object' && 'ip_conversions' in meta) {
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meta.ip_conversions = format_tt(meta.ip_conversions);
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}
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var dsp = { name: name, type: type, meta: meta };
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conf.dns_providers.push(dsp);
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return name;
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}
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function newDomain(name, registrar) {
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return {
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name: name,
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registrar: registrar,
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meta: {},
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records: [],
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dnsProviders: {},
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defaultTTL: 0,
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nameservers: [],
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ignored_labels: [],
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};
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}
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function processDargs(m, domain) {
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// for each modifier, if it is a...
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// function: call it with domain
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// array: process recursively
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// object: merge it into metadata
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if (_.isFunction(m)) {
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m(domain);
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} else if (_.isArray(m)) {
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for (var j in m) {
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processDargs(m[j], domain);
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}
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} else if (_.isObject(m)) {
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_.extend(domain.meta, m);
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} else {
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throw 'WARNING: domain modifier type unsupported: ' +
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typeof m +
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' Domain: ' +
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domain.name;
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}
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}
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// D(name,registrar): Create a DNS Domain. Use the parameters as records and mods.
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function D(name, registrar) {
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var domain = newDomain(name, registrar);
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for (var i = 0; i < defaultArgs.length; i++) {
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processDargs(defaultArgs[i], domain);
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}
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for (var i = 2; i < arguments.length; i++) {
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var m = arguments[i];
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processDargs(m, domain);
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}
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if (conf.domain_names.indexOf(name) !== -1) {
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throw name + ' is declared more than once';
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}
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conf.domains.push(domain);
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conf.domain_names.push(name);
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}
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// DEFAULTS provides a set of default arguments to apply to all future domains.
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// Each call to DEFAULTS will clear any previous values set.
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function DEFAULTS() {
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defaultArgs = [];
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for (var i = 0; i < arguments.length; i++) {
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defaultArgs.push(arguments[i]);
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}
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}
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// TTL(v): Set the TTL for a DNS record.
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function TTL(v) {
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if (_.isString(v)) {
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v = stringToDuration(v);
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}
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return function(r) {
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r.ttl = v;
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};
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}
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function stringToDuration(v) {
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var matches = v.match(/^(\d+)([smhdwny]?)$/);
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if (matches == null) {
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throw v + ' is not a valid duration string';
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}
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unit = 's';
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if (matches[2]) {
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unit = matches[2];
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}
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v = parseInt(matches[1]);
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var u = { s: 1, m: 60, h: 3600 };
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u['d'] = u.h * 24;
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u['w'] = u.d * 7;
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u['n'] = u.d * 30;
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u['y'] = u.d * 365;
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v *= u[unit];
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return v;
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}
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// DefaultTTL(v): Set the default TTL for the domain.
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function DefaultTTL(v) {
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if (_.isString(v)) {
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v = stringToDuration(v);
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}
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return function(d) {
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d.defaultTTL = v;
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};
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}
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function makeCAAFlag(value) {
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return function(record) {
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record.caaflag |= value;
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};
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}
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// CAA_CRITICAL: Critical CAA flag
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var CAA_CRITICAL = makeCAAFlag(1 << 7);
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// DnsProvider("providerName", 0)
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// nsCount of 0 means don't use or register any nameservers.
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// nsCount not provider means use all.
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function DnsProvider(name, nsCount) {
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if (typeof nsCount === 'undefined') {
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nsCount = -1;
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}
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return function(d) {
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d.dnsProviders[name] = nsCount;
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};
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}
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// A(name,ip, recordModifiers...)
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var A = recordBuilder('A');
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// AAAA(name,ip, recordModifiers...)
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var AAAA = recordBuilder('AAAA');
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// ALIAS(name,target, recordModifiers...)
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var ALIAS = recordBuilder('ALIAS');
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// R53_ALIAS(name, target, type, recordModifiers...)
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var R53_ALIAS = recordBuilder('R53_ALIAS', {
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args: [
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['name', _.isString],
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['type', validateR53AliasType],
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['target', _.isString],
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],
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transform: function(record, args, modifiers) {
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record.name = args.name;
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record.target = args.target;
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if (_.isObject(record.r53_alias)) {
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record.r53_alias['type'] = args.type;
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} else {
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record.r53_alias = { type: args.type };
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}
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},
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});
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// R53_ZONE(zone_id)
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function R53_ZONE(zone_id) {
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return function(r) {
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if (_.isObject(r.r53_alias)) {
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r.r53_alias['zone_id'] = zone_id;
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} else {
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r.r53_alias = { zone_id: zone_id };
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}
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};
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}
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function validateR53AliasType(value) {
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if (!_.isString(value)) {
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return false;
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}
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return (
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[
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'A',
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'AAAA',
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'CNAME',
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'CAA',
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'MX',
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'TXT',
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'PTR',
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'SPF',
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'SRV',
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'NAPTR',
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].indexOf(value) != -1
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);
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}
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// CAA(name,tag,value, recordModifiers...)
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var CAA = recordBuilder('CAA', {
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// TODO(tlim): It should be an error if value is not 0 or 128.
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args: [
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['name', _.isString],
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['tag', _.isString],
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['value', _.isString],
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],
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transform: function(record, args, modifiers) {
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record.name = args.name;
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record.caatag = args.tag;
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record.target = args.value;
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},
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modifierNumber: function(record, value) {
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record.caaflags |= value;
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},
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});
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// CNAME(name,target, recordModifiers...)
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var CNAME = recordBuilder('CNAME');
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// PTR(name,target, recordModifiers...)
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var PTR = recordBuilder('PTR');
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// NAPTR(name,order,preference,flags,service,regexp,target, recordModifiers...)
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var NAPTR = recordBuilder('NAPTR', {
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args: [
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['name', _.isString],
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['order', _.isNumber],
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['preference', _.isNumber],
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['flags', _.isString],
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['service', _.isString],
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['regexp', _.isString],
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['target', _.isString],
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],
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transform: function(record, args, modifiers) {
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record.name = args.name;
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record.naptrorder = args.order;
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record.naptrpreference = args.preference;
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record.naptrflags = args.flags;
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record.naptrservice = args.service;
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record.naptrregexp = args.regexp;
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record.target = args.target;
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},
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});
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// SRV(name,priority,weight,port,target, recordModifiers...)
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var SRV = recordBuilder('SRV', {
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args: [
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['name', _.isString],
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['priority', _.isNumber],
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['weight', _.isNumber],
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['port', _.isNumber],
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['target', _.isString],
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],
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transform: function(record, args, modifiers) {
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record.name = args.name;
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record.srvpriority = args.priority;
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record.srvweight = args.weight;
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record.srvport = args.port;
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record.target = args.target;
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},
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});
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// SSHFP(name,algorithm,type,value, recordModifiers...)
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var SSHFP = recordBuilder('SSHFP', {
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args: [
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['name', _.isString],
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['algorithm', _.isNumber],
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['fingerprint', _.isNumber],
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['value', _.isString],
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],
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transform: function(record, args, modifiers) {
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record.name = args.name;
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record.sshfpalgorithm = args.algorithm;
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record.sshfpfingerprint = args.fingerprint;
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record.target = args.value;
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},
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});
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// name, usage, selector, matchingtype, certificate
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var TLSA = recordBuilder('TLSA', {
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args: [
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['name', _.isString],
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['usage', _.isNumber],
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['selector', _.isNumber],
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['matchingtype', _.isNumber],
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['target', _.isString], // recordBuilder needs a "target" argument
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],
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transform: function(record, args, modifiers) {
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record.name = args.name;
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record.tlsausage = args.usage;
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record.tlsaselector = args.selector;
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record.tlsamatchingtype = args.matchingtype;
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record.target = args.target;
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},
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});
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function isStringOrArray(x) {
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return _.isString(x) || _.isArray(x);
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}
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// TXT(name,target, recordModifiers...)
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var TXT = recordBuilder('TXT', {
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args: [
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['name', _.isString],
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['target', isStringOrArray],
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],
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transform: function(record, args, modifiers) {
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record.name = args.name;
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// Store the strings twice:
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// .target is the first string
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// .txtstrings is the individual strings.
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// NOTE: If there are more than 1 string, providers should only access
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// .txtstrings, thus it doesn't matter what we store in .target.
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// However, by storing the first string there, it improves backwards
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// compatibility when the len(array) == 1 and (intentionally) breaks
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// broken providers early in the integration tests.
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if (_.isString(args.target)) {
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record.target = args.target;
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record.txtstrings = [args.target];
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} else {
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record.target = args.target[0];
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record.txtstrings = args.target;
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}
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},
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});
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// MX(name,priority,target, recordModifiers...)
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var MX = recordBuilder('MX', {
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args: [
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['name', _.isString],
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['priority', _.isNumber],
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['target', _.isString],
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],
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transform: function(record, args, modifiers) {
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record.name = args.name;
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record.mxpreference = args.priority;
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record.target = args.target;
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},
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});
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// NS(name,target, recordModifiers...)
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var NS = recordBuilder('NS');
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// NAMESERVER(name,target)
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function NAMESERVER(name) {
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if (arguments.length != 1) {
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throw 'NAMESERVER only accepts one argument for name.';
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}
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return function(d) {
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d.nameservers.push({ name: name });
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};
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}
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// NAMESERVER_TTL(v): Set the TTL for NAMESERVER records.
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function NAMESERVER_TTL(v) {
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if (_.isString(v)) {
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v = stringToDuration(v);
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}
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return { ns_ttl: v.toString() };
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}
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function format_tt(transform_table) {
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// Turn [[low: 1, high: 2, newBase: 3], [low: 4, high: 5, newIP: 6]]
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// into "1 ~ 2 ~ 3 ~; 4 ~ 5 ~ ~ 6"
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var lines = [];
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for (var i = 0; i < transform_table.length; i++) {
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var ip = transform_table[i];
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var newIP = ip.newIP;
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if (newIP) {
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if (_.isArray(newIP)) {
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newIP = _.map(newIP, function(i) {
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return num2dot(i);
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}).join(',');
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} else {
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newIP = num2dot(newIP);
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}
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}
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var newBase = ip.newBase;
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if (newBase) {
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if (_.isArray(newBase)) {
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newBase = _.map(newBase, function(i) {
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return num2dot(i);
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}).join(',');
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} else {
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newBase = num2dot(newBase);
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}
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}
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var row = [num2dot(ip.low), num2dot(ip.high), newBase, newIP];
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lines.push(row.join(' ~ '));
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}
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return lines.join(' ; ');
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}
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// IGNORE(name)
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function IGNORE(name) {
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return function(d) {
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d.ignored_labels.push(name);
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};
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}
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// IMPORT_TRANSFORM(translation_table, domain)
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var IMPORT_TRANSFORM = recordBuilder('IMPORT_TRANSFORM', {
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args: [['translation_table'], ['domain'], ['ttl', _.isNumber]],
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transform: function(record, args, modifiers) {
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record.name = '@';
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record.target = args.domain;
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record.meta['transform_table'] = format_tt(args.translation_table);
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record.ttl = args.ttl;
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},
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});
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// PURGE()
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function PURGE(d) {
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d.KeepUnknown = false;
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}
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// NO_PURGE()
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function NO_PURGE(d) {
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d.KeepUnknown = true;
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}
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// AUTODNSSEC()
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function AUTODNSSEC(d) {
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d.auto_dnssec = true;
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}
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/**
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* @deprecated
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*/
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function getModifiers(args, start) {
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var mods = [];
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for (var i = start; i < args.length; i++) {
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mods.push(args[i]);
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}
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return mods;
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}
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/**
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* Record type builder
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* @param {string} type Record type
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* @param {string} opts.args[][0] Argument name
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* @param {function=} opts.args[][1] Optional validator
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* @param {function=} opts.transform Function to apply arguments to record.
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* Take (record, args, modifier) as arguments. Any modifiers will be
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* applied before this function. It should mutate the given record.
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* @param {function=} opts.applyModifier Function to apply modifiers to the record
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*/
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function recordBuilder(type, opts) {
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opts = _.defaults({}, opts, {
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args: [['name', _.isString], ['target']],
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transform: function(record, args, modifiers) {
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// record will have modifiers already applied
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// args will be an object for parameters defined
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record.name = args.name;
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if (_.isNumber(args.target)) {
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record.target = num2dot(args.target);
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} else {
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record.target = args.target;
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}
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},
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applyModifier: function(record, modifiers) {
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for (var i = 0; i < modifiers.length; i++) {
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var mod = modifiers[i];
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if (_.isFunction(mod)) {
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mod(record);
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} else if (_.isObject(mod)) {
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// convert transforms to strings
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if (mod.transform && _.isArray(mod.transform)) {
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mod.transform = format_tt(mod.transform);
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}
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_.extend(record.meta, mod);
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} else {
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throw 'ERROR: Unknown modifier type';
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}
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}
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},
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});
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return function() {
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var parsedArgs = {};
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var modifiers = [];
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if (arguments.length < opts.args.length) {
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var argumentsList = opts.args
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.map(function(item) {
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return item[0];
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})
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.join(', ');
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throw type +
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' record requires ' +
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opts.args.length +
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' arguments (' +
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argumentsList +
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'). Only ' +
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arguments.length +
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' were supplied';
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return;
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}
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// collect arguments
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for (var i = 0; i < opts.args.length; i++) {
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var argDefinition = opts.args[i];
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var value = arguments[i];
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if (argDefinition.length > 1) {
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// run validator if supplied
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if (!argDefinition[1](value)) {
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throw type +
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' record ' +
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argDefinition[0] +
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' argument validation failed';
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}
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}
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parsedArgs[argDefinition[0]] = value;
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}
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// collect modifiers
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for (var i = opts.args.length; i < arguments.length; i++) {
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modifiers.push(arguments[i]);
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}
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return function(d) {
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var record = {
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type: type,
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meta: {},
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ttl: d.defaultTTL,
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};
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opts.applyModifier(record, modifiers);
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opts.transform(record, parsedArgs, modifiers);
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d.records.push(record);
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return record;
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};
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};
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}
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/**
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* @deprecated
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*/
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function addRecord(d, type, name, target, mods) {
|
|
// if target is number, assume ip address. convert it.
|
|
if (_.isNumber(target)) {
|
|
target = num2dot(target);
|
|
}
|
|
var rec = {
|
|
type: type,
|
|
name: name,
|
|
target: target,
|
|
ttl: d.defaultTTL,
|
|
priority: 0,
|
|
meta: {},
|
|
};
|
|
// for each modifier, decide based on type:
|
|
// - Function: call is with the record as the argument
|
|
// - Object: merge it into the metadata
|
|
// - Number: IF MX record assume it is priority
|
|
if (mods) {
|
|
for (var i = 0; i < mods.length; i++) {
|
|
var m = mods[i];
|
|
if (_.isFunction(m)) {
|
|
m(rec);
|
|
} else if (_.isObject(m)) {
|
|
// convert transforms to strings
|
|
if (m.transform && _.isArray(m.transform)) {
|
|
m.transform = format_tt(m.transform);
|
|
}
|
|
_.extend(rec.meta, m);
|
|
_.extend(rec.meta, m);
|
|
} else {
|
|
console.log(
|
|
'WARNING: Modifier type unsupported:',
|
|
typeof m,
|
|
'(Skipping!)'
|
|
);
|
|
}
|
|
}
|
|
}
|
|
d.records.push(rec);
|
|
return rec;
|
|
}
|
|
|
|
// ip conversion functions from http://stackoverflow.com/a/8105740/121660
|
|
// via http://javascript.about.com/library/blipconvert.htm
|
|
function IP(dot) {
|
|
var d = dot.split('.');
|
|
// prettier-ignore
|
|
return ((((((+d[0]) * 256) + (+d[1])) * 256) + (+d[2])) * 256) + (+d[3]);
|
|
}
|
|
|
|
function num2dot(num) {
|
|
if (num === undefined) {
|
|
return '';
|
|
}
|
|
if (_.isString(num)) {
|
|
return num;
|
|
}
|
|
var d = num % 256;
|
|
for (var i = 3; i > 0; i--) {
|
|
num = Math.floor(num / 256);
|
|
d = (num % 256) + '.' + d;
|
|
}
|
|
return d;
|
|
}
|
|
|
|
// Cloudflare aliases:
|
|
|
|
// Meta settings for individual records.
|
|
var CF_PROXY_OFF = { cloudflare_proxy: 'off' }; // Proxy disabled.
|
|
var CF_PROXY_ON = { cloudflare_proxy: 'on' }; // Proxy enabled.
|
|
var CF_PROXY_FULL = { cloudflare_proxy: 'full' }; // Proxy+Railgun enabled.
|
|
// Per-domain meta settings:
|
|
// Proxy default off for entire domain (the default):
|
|
var CF_PROXY_DEFAULT_OFF = { cloudflare_proxy_default: 'off' };
|
|
// Proxy default on for entire domain:
|
|
var CF_PROXY_DEFAULT_ON = { cloudflare_proxy_default: 'on' };
|
|
// UniversalSSL off for entire domain:
|
|
var CF_UNIVERSALSSL_OFF = { cloudflare_universalssl: 'off' };
|
|
// UniversalSSL on for entire domain:
|
|
var CF_UNIVERSALSSL_ON = { cloudflare_universalssl: 'on' };
|
|
|
|
// CUSTOM, PROVIDER SPECIFIC RECORD TYPES
|
|
|
|
function _validateCloudflareRedirect(value) {
|
|
if (!_.isString(value)) {
|
|
return false;
|
|
}
|
|
return value.indexOf(',') === -1;
|
|
}
|
|
|
|
var CF_REDIRECT = recordBuilder('CF_REDIRECT', {
|
|
args: [
|
|
['source', _validateCloudflareRedirect],
|
|
['destination', _validateCloudflareRedirect],
|
|
],
|
|
transform: function(record, args, modifiers) {
|
|
record.name = '@';
|
|
record.target = args.source + ',' + args.destination;
|
|
},
|
|
});
|
|
|
|
var CF_TEMP_REDIRECT = recordBuilder('CF_TEMP_REDIRECT', {
|
|
args: [
|
|
['source', _validateCloudflareRedirect],
|
|
['destination', _validateCloudflareRedirect],
|
|
],
|
|
transform: function(record, args, modifiers) {
|
|
record.name = '@';
|
|
record.target = args.source + ',' + args.destination;
|
|
},
|
|
});
|
|
|
|
var URL = recordBuilder('URL');
|
|
var URL301 = recordBuilder('URL301');
|
|
var FRAME = recordBuilder('FRAME');
|
|
|
|
// SPF_BUILDER takes an object:
|
|
// parts: The parts of the SPF record (to be joined with ' ').
|
|
// label: The DNS label for the primary SPF record. (default: '@')
|
|
// raw: Where (which label) to store an unaltered version of the SPF settings.
|
|
// ttl: The time for TTL, integer or string. (default: not defined, using DefaultTTL)
|
|
// split: The template for additional records to be created (default: '_spf%d')
|
|
// flatten: A list of domains to be flattened.
|
|
|
|
function SPF_BUILDER(value) {
|
|
if (!value.parts || value.parts.length < 2) {
|
|
throw 'SPF_BUILDER requires at least 2 elements';
|
|
}
|
|
if (!value.label) {
|
|
value.label = '@';
|
|
}
|
|
if (!value.raw) {
|
|
value.raw = '_rawspf';
|
|
}
|
|
|
|
r = []; // The list of records to return.
|
|
p = {}; // The metaparameters to set on the main TXT record.
|
|
rawspf = value.parts.join(' '); // The unaltered SPF settings.
|
|
|
|
// If flattening is requested, generate a TXT record with the raw SPF settings.
|
|
if (value.flatten && value.flatten.length > 0) {
|
|
p.flatten = value.flatten.join(',');
|
|
if (value.ttl) {
|
|
r.push(TXT(value.raw, rawspf, TTL(value.ttl)));
|
|
} else {
|
|
r.push(TXT(value.raw, rawspf));
|
|
}
|
|
}
|
|
|
|
// If overflow is specified, enable splitting.
|
|
if (value.overflow) {
|
|
p.split = value.overflow;
|
|
}
|
|
|
|
// Generate a TXT record with the metaparameters.
|
|
if (value.ttl) {
|
|
r.push(TXT(value.label, rawspf, p, TTL(value.ttl)));
|
|
} else {
|
|
r.push(TXT(value.label, rawspf, p));
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
// CAA_BUILDER takes an object:
|
|
// label: The DNS label for the CAA record. (default: '@')
|
|
// iodef: The contact mail address. (optional)
|
|
// iodef_critical: Boolean if sending report is required/critical. If not supported, certificate should be refused. (optional)
|
|
// issue: List of CAs which are allowed to issue certificates for the domain (creates one record for each).
|
|
// issuewild: Allowed CAs which can issue wildcard certificates for this domain. (creates one record for each)
|
|
|
|
function CAA_BUILDER(value) {
|
|
if (!value.label) {
|
|
value.label = '@';
|
|
}
|
|
|
|
if (value.issue && value.issue == 'none') value.issue = [';'];
|
|
if (value.issuewild && value.issuewild == 'none') value.issuewild = [';'];
|
|
|
|
if (
|
|
(!value.issue && !value.issuewild) ||
|
|
(value.issue &&
|
|
value.issue.length == 0 &&
|
|
value.issuewild && value.issuewild.length == 0)
|
|
) {
|
|
throw 'CAA_BUILDER requires at least one entry at issue or issuewild';
|
|
}
|
|
|
|
r = []; // The list of records to return.
|
|
|
|
if (value.iodef) {
|
|
if (value.iodef_critical) {
|
|
r.push(CAA(value.label, 'iodef', value.iodef, CAA_CRITICAL));
|
|
} else {
|
|
r.push(CAA(value.label, 'iodef', value.iodef));
|
|
}
|
|
}
|
|
|
|
if (value.issue)
|
|
for (var i = 0, len = value.issue.length; i < len; i++)
|
|
r.push(CAA(value.label, 'issue', value.issue[i]));
|
|
|
|
if (value.issuewild)
|
|
for (var i = 0, len = value.issuewild.length; i < len; i++)
|
|
r.push(CAA(value.label, 'issuewild', value.issuewild[i]));
|
|
|
|
return r;
|
|
}
|
|
|
|
// Split a DKIM string if it is >254 bytes.
|
|
function DKIM(arr) {
|
|
chunkSize = 255;
|
|
var R = [];
|
|
for (var i = 0, len = arr.length; i < len; i += chunkSize)
|
|
R.push(arr.slice(i, i + chunkSize));
|
|
return R;
|
|
}
|