yxorp

A simple proxy for totally legal purposes

Proxy your requests and rewrite pages/styles to follow the same rule

To use :

node server.js [port] [proxy-origin] [index page]

proxy-origin should be as "http(s)://your.host"

It will be placed before every link so be sure to change it when needed

To install :

git clone https://github.com/Klemek/yxorp
cd yxorp
npm install
npm install -g nodemon
nodemon ./server.js 3000
# started on localhost:3000
# go to http://localhost:3000/stackoverflow.com (it should works there)

Disclaimer : reasons it might break

(on localhost) websites that doesn't like "being" on another port
websites that doesn't like not being the host
dynamic HTTP queries created in scripts
non-GET method

How it works

Proxying request

When you reach https://<proxy_host>/google.com/index.html it will send a request to https://google.com/index.html from it's own and retreive you the response.

Identifying URLs in response

The response is also modified so that you can receive all resources the same way.

All files
- full URLs https://google.com/image.png
CSS and HTML files
- CSS URLs url(https://google.com/image.png)
JS and HTML files
- identified domains //google.com/
- identified escaped domains \/\/google.com\/
HTML files
- common html attributes
  - src="https://google.com/script.js"
  - href='/style.css'

Rewriting URLs in response

All following URLs are rewritten as https://<proxy_host>/google.com/favicon.ico:

Type	Input Example
full URL with protocol	`https://google.com/favicon.ico`
full URL without protocol	`//google.com/favicon.ico`
root path URL*	`/favicon.ico`

* can be rewritten with cache-saved target host (identified by the first request containing the upgrade-insecure-requests header)

Klemek / yxorp