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migrate code for github
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251
js/helpers.js
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251
js/helpers.js
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"use strict";
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var conf = {
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registrars: [],
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dns_service_providers: [],
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domains: []
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};
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var defaultDsps = [];
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function initialize(){
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conf = {
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registrars: [],
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dns_service_providers: [],
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domains: []
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};
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defaultDsps = [];
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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 NewDSP(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_service_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 {name: name, registrar: registrar, meta:{}, records:[], dsps: [], defaultTTL: 0, nameservers:[]};
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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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// string: assume it is a dsp
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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 if (_.isString(m)) {
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domain.dsps.push(m);
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} else {
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console.log("WARNING: domain modifier type unsupported: ", typeof m, " Domain: ", domain)
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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 = 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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var toAdd = _(defaultDsps).difference(domain.dsps);
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_(toAdd).each(function(x) { domain.dsps.push(x)});
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conf.domains.push(domain)
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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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return function(r) {
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r.ttl = v;
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}
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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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return function(d) {
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d.defaultTTL = v;
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}
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}
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// A(name,ip, recordModifiers...)
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function A(name, ip) {
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var mods = getModifiers(arguments,2)
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return function(d) {
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addRecord(d,"A",name,ip,mods)
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}
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}
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// AAAA(name,ip, recordModifiers...)
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function AAAA(name, ip) {
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var mods = getModifiers(arguments,2)
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return function(d) {
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addRecord(d,"AAAA",name,ip,mods)
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}
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}
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// CNAME(name,target, recordModifiers...)
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function CNAME(name, target) {
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var mods = getModifiers(arguments,2)
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return function(d) {
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addRecord(d,"CNAME",name,target,mods)
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}
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}
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// TXT(name,target, recordModifiers...)
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function TXT(name, target) {
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var mods = getModifiers(arguments,2)
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return function(d) {
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addRecord(d,"TXT",name,target,mods)
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}
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}
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// MX(name,priority,target, recordModifiers...)
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function MX(name, priority, target) {
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var mods = getModifiers(arguments,3)
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return function(d) {
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mods.push(priority);
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addRecord(d, "MX", name, target, mods)
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}
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}
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// NS(name,target, recordModifiers...)
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function NS(name, target) {
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var mods = getModifiers(arguments,2)
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return function(d) {
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addRecord(d,"NS",name,target,mods)
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}
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}
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// NAMESERVER(name,target)
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function NAMESERVER(name, target) {
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return function(d) {
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d.nameservers.push({name: name, target: target})
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}
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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){return num2dot(i)}).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 row = [
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num2dot(ip.low),
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num2dot(ip.high),
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num2dot(ip.newBase),
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newIP
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]
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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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// IMPORT_TRANSFORM(translation_table, domain)
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function IMPORT_TRANSFORM(translation_table, domain) {
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return function(d) {
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addRecord(d, "IMPORT_TRANSFORM", "@", domain, [
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{'transform_table': format_tt(translation_table)}])
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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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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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function addRecord(d,type,name,target,mods) {
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// if target is number, assume ip address. convert it.
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if (_.isNumber(target)) {
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target = num2dot(target);
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}
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var rec = {type: type, name: name, target: target, ttl:d.defaultTTL, priority: 0, meta:{}};
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// for each modifier, decide based on type:
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// - Function: call is with the record as the argument
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// - Object: merge it into the metadata
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// - Number: IF MX record assume it is priority
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if (mods) {
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for (var i = 0; i< mods.length; i++) {
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var m = mods[i]
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if (_.isFunction(m)) {
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m(rec);
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} else if (_.isObject(m)) {
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//convert transforms to strings
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if (m.transform && _.isArray(m.transform)){
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m.transform = format_tt(m.transform)
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}
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_.extend(rec.meta,m);
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_.extend(rec.meta,m);
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} else if (_.isNumber(m) && type == "MX") {
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rec.priority = m;
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} else {
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console.log("WARNING: Modifier type unsupported:", typeof m, "(Skipping!)");
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}
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}
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}
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d.records.push(rec);
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}
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//ip conversion functions from http://stackoverflow.com/a/8105740/121660
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// via http://javascript.about.com/library/blipconvert.htm
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function IP(dot)
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{
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var d = dot.split('.');
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return ((((((+d[0])*256)+(+d[1]))*256)+(+d[2]))*256)+(+d[3]);
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}
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function num2dot(num)
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{
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if(num === undefined){
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return "";
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}
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if (_.isString(num)){
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return num
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}
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var d = num%256;
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for (var i = 3; i > 0; i--)
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{
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num = Math.floor(num/256);
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d = num%256 + '.' + d;
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}
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return d;
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}
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