cdn-server

This is a basic cdn server engine

How does it work

First install it:

npm install --save cdn-server

It uses the redis-url-cache node library to store URLs in a redis data store, and bunyan for JSON logging.

It runs on a node.js http server

The config file is straight forward.

Config JSON

The JSON format is:

interface ICDNconfig{
    defaultDomain: string, // When provided with a relative URL, this hostname will be used
    port: number, // listening port
    instanceName: string, // rediurl-cache instance NAme
    redisConfig: RedisUrlCache.RedisStorageConfig, 
    cacheRules: RedisUrlCache.CacheRules
}
 

instanceName See Instances

RedisUrlCache.RedisStorageConfig See Redis Config

RedisUrlCache.CacheRules See Cache Rules

Note Regexes inside cacheRules must be valid.

Usage

var CacheServer = require('cdn-server');
var bunyan = require('bunyan');
 
var config = {
    defaultDomain: 'http://127.0.0.1:3000/',
    port: 3030,
    instanceName: 'CACHE',
    redisConfig: {
        host: '127.0.0.1',
        port: 6379,
    },
    cacheRules: {
        default: 'always',
        always: [],
        never: [],
        maxAge: []
    }
}
 
var logger = bunyan.createLogger({name: 'I am a console logger'});
 
var server = new CacheServer(config, logger);
 
server.start( function(err) {
    if(err) throw err;
    console.log('cache server started');
});
 
 

Then you can CURL:

curl --header "referer: http://whatever.com" http://127.0.0.1:3030/get?url=http://www.google.com

The referer header is mandatory

Whats wrong with it?

It doesn't supports CORS (yet), although the fix is trivial

This is just a server, if you query http://127.0.0.1:3030/get?url=http://www.google.com&referer=http://whatever.com, inside your browser, you will of course get the correct HTML, but the browser will call the wrong relative URLs.