fixed prefix issue
This commit is contained in:
+188
-181
@@ -1,11 +1,11 @@
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'use strict';
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const RedisModel = require('../utils/redis_model');
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const Table = require('../utils/redis_model');
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const Host = RedisModel({
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_name: 'host',
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_key: 'host',
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_keyMap: {
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class Host extends Table{
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static _key = 'host';
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static _keyMap = {
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'created_by': {isRequired: true, type: 'string', min: 3, max: 500},
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'created_on': {default: function(){return (new Date).getTime()}},
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'updated_by': {default:"__NONE__", isRequired: false, type: 'string',},
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@@ -17,196 +17,200 @@ const Host = RedisModel({
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'targetssl': {isRequired: false, default: false, type: 'boolean'},
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'created_by': {isRequired: true, type: 'string', min: 3, max: 500},
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'is_cache': {default: false, isRequired: false, type: 'boolean',},
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}
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});
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const Cached = RedisModel({
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_name: 'cached',
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_key: 'host',
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_keyMap: {
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static lookUpObj = {};
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static __lookUpIsReady = false;
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async addCache(host, parentOBJ){
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try{
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await this.add({...parentOBJ, host, is_cache: true}, true)
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await Cached.add({
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host: host,
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parent: parentOBJ.host
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});
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}catch(error){
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console.error('add cahce error', {...parentOBJ, host, is_cache: true}, error)
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throw error;
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}
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}
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async bustCache(parent){
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try{
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let cached = await Cached.listDetail();
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for(let cache of cached){
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if(cache.parent == parent){
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let host = await Host.get(cache.host);
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await this.remove.apply(host);
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await cache.remove();
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}
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}
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}catch(error){
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console.error('bust cache error', error)
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throw error;
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}
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}
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static async add(...args){
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try{
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let out = await super.add(...args)
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await this.buildLookUpObj()
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return out;
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} catch(error){
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throw error;
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}
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}
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async update(...args){
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try{
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let out = await super.update(...args)
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await this.bustCache(this.host)
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await Host.buildLookUpObj()
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return out;
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} catch(error){
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throw error;
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}
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}
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async remove(...args){
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try{
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let out = await super.remove(...args)
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await Host.buildLookUpObj()
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await this.bustCache(this.host)
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return out;
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} catch(error){
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throw error;
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}
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}
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static async buildLookUpObj(){
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/*
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Build a look up tree for domain records in the redis back end to allow
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complex looks with wildcards.
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*/
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// Hold lookUp ready while the look up object is being built.
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this.__lookUpIsReady = false;
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this.lookUpObj = {};
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try{
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// Loop over all the hosts in the redis.
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for(let host of await this.list()){
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// Spit the hosts on "." into its fragments .
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let fragments = host.split('.');
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// Hold a pointer to the root of the lookup tree.
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let pointer = this.lookUpObj;
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// Walk over each fragment, popping from right to left.
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while(fragments.length){
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let fragment = fragments.pop();
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// Add a branch to the lookup at the current position
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if(!pointer[fragment]){
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pointer[fragment] = {};
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}
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// Add the record(leaf) when we hit the a full host name.
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// #record denotes a leaf node on this tree.
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if(fragments.length === 0){
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pointer[fragment]['#record'] = await this.get(host)
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}
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// Advance the pointer to the next level of the tree.
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pointer = pointer[fragment];
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}
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}
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// When the look up tree is finished, remove the ready hold.
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this.__lookUpIsReady = true;
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}catch(error){
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console.error(error);
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}
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}
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static lookUp(host){
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/*
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Perform a complex lookup of @host on the look up tree.
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*/
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// Hold a pointer to the root of the look up tree
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let place = this.lookUpObj;
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// Hold the last passed long wild card.
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let last_resort = {};
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// Walk over each fragment of the host, from right to left
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for(let fragment of host.split('.').reverse()){
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// If a long wild card is found on this level, hold on to it
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if(place['**']) last_resort = place['**'];
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// If we have a match for the current fragment, update the current pointer
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// A match in the lookup tree takes priority being a more exact match.
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if({...last_resort, ...place}[fragment]){
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place = {...last_resort, ...place}[fragment];
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// If we have a not exact fragment match, a wild card will do.
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}else if(place['*']){
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place = place['*']
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// If no fragment can be matched, continue with the long wild card branch.
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}else if(last_resort){
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place = last_resort;
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}
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}
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// After the tree has been traversed, see if we have leaf node to return.
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if(place && place['#record']) return place['#record'];
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}
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static async lookUpReady(){
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/*
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Wait for the lookup tree to be built.
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*/
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// Check every 5ms to see if the look up tree is ready
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while(!this.__lookUpIsReady) await new Promise(r => setTimeout(r, 5));
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return true;
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}
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}
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class Cached extends Table{
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static _key = 'host';
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static _keyMap = {
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'host': {isRequired: true, type: 'string', min: 3, max: 500},
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'parent': {isRequired: true, type: 'string', min: 3, max: 500},
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}
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});
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Host.addCache = async function(host, parentOBJ){
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try{
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await Host.__proto__.add.apply(this, [{...parentOBJ, host, is_cache: true}, true])
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await Cached.add({
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host: host,
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parent: parentOBJ.host
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});
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}catch(error){
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console.error('add cahce error', {...parentOBJ, host, is_cache: true}, error)
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throw error;
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}
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};
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Host.bustCache = async function(parent){
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try{
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let cached = await Cached.listDetail();
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for(let cache of cached){
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if(cache.parent == parent){
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let host = await Host.get(cache.host);
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await Host.__proto__.remove.apply(host);
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await cache.remove();
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}
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}
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}catch(error){
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console.error('bust cache error', error)
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throw error;
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}
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}
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Host.add = async function(){
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try{
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let out = await Host.__proto__.add.apply(this, arguments)
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await Host.buildLookUpObj()
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return out;
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} catch(error){
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throw error;
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}
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};
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Host.update = async function(data, key){
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try{
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let out = await Host.__proto__.update.apply(this, arguments)
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await Host.bustCache(this.host)
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await Host.buildLookUpObj()
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return out;
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} catch(error){
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throw error;
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}
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};
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Host.remove = async function(){
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try{
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let out = await Host.__proto__.remove.apply(this, arguments)
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await Host.buildLookUpObj()
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await Host.bustCache(this.host)
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return out;
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} catch(error){
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throw error;
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}
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};
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Host.lookUpObj = {};
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Host.buildLookUpObj = async function(){
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/*
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Build a look up tree for domain records in the redis back end to allow
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complex looks with wildcards.
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*/
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// Hold lookUp ready while the look up object is being built.
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this.__lookUpIsReady = false;
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this.lookUpObj = {};
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try{
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// Loop over all the hosts in the redis.
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for(let host of await this.list()){
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// Spit the hosts on "." into its fragments .
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let fragments = host.split('.');
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// Hold a pointer to the root of the lookup tree.
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let pointer = this.lookUpObj;
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// Walk over each fragment, popping from right to left.
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while(fragments.length){
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let fragment = fragments.pop();
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// Add a branch to the lookup at the current position
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if(!pointer[fragment]){
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pointer[fragment] = {};
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}
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// Add the record(leaf) when we hit the a full host name.
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// #record denotes a leaf node on this tree.
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if(fragments.length === 0){
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pointer[fragment]['#record'] = await this.get(host)
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}
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// Advance the pointer to the next level of the tree.
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pointer = pointer[fragment];
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}
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}
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// When the look up tree is finished, remove the ready hold.
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this.__lookUpIsReady = true;
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}catch(error){
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console.error(error);
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}
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};
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Host.lookUp = function(host){
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/*
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Perform a complex lookup of @host on the look up tree.
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*/
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// Hold a pointer to the root of the look up tree
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let place = this.lookUpObj;
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// Hold the last passed long wild card.
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let last_resort = {};
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// Walk over each fragment of the host, from right to left
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for(let fragment of host.split('.').reverse()){
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// If a long wild card is found on this level, hold on to it
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if(place['**']) last_resort = place['**'];
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// If we have a match for the current fragment, update the current pointer
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// A match in the lookup tree takes priority being a more exact match.
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if({...last_resort, ...place}[fragment]){
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place = {...last_resort, ...place}[fragment];
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// If we have a not exact fragment match, a wild card will do.
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}else if(place['*']){
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place = place['*']
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// If no fragment can be matched, continue with the long wild card branch.
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}else if(last_resort){
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place = last_resort;
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}
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}
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// After the tree has been traversed, see if we have leaf node to return.
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if(place && place['#record']) return place['#record'];
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};
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Host.__lookUpIsReady = false;
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Host.lookUpReady = async function(){
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/*
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Wait for the lookup tree to be built.
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*/
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// Check every 5ms to see if the look up tree is ready
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while(!this.__lookUpIsReady) await new Promise(r => setTimeout(r, 5));
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return true;
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};
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(async function(){
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await Host.buildLookUpObj();
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})()
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module.exports = {Host};
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// (async function(){
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(async function(){
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try{
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// await Host.lookUpReady();
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// // console.log(Host.lookUpObj)
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// await Host.lookUpReady();
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// console.log(Host.lookUpObj)
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// console.log(await Host.listDetail())
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// // console.log(Host.lookUpObj['com']['vm42'])
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@@ -217,7 +221,7 @@ module.exports = {Host};
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// console.log(count++, Host.lookUp('sd.blah.test.vm42.com') === undefined)
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// console.log(count++, Host.lookUp('payments.test.com').host === 'payments.**')
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// console.log(count++, Host.lookUp('test.sample.other.exmaple.com').host === '**.exmaple.com')
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// // console.log(count++, Host.lookUp('stan.test.vm42.com').host === 'stan.test.vm42.com')
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// console.log(count++, Host.lookUp('stan.test.vm42.com').host === 'stan.test.vm42.com')
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// console.log(count++, Host.lookUp('test.vm42.com').host === 'test.vm42.com')
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// console.log(count++, Host.lookUp('blah.test.vm42.com').host === '*.test.vm42.com')
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// console.log(count++, Host.lookUp('payments.example.com').host === 'payments.**')
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@@ -231,4 +235,7 @@ module.exports = {Host};
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// console.log(count++, Host.lookUp('718it.biz').host === '718it.biz')
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// })()
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}catch(error){
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console.log('IIFE test area error:', error)
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}
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})()
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