Krypto / Simple-Image-Proxy

A simple image proxy written in php using intervention/image to manipulate images.

Simple-Image-Proxy

The purpose of this image proxy is to reduce the exposure of the requesting sites url, when hot-linking images, by using the image proxy to make the http request, store the image and return the image from the proxy in an http response.

This could also be used to serve images that are using http links on your https site. Thereby not opening up a security hole.

This image proxy will store an optimized for web version of the original image and can return that image in any dimensions that are included with the http request.

How To:

get the code

git clone https://github.com/darkalchemy/Simple-Image-Proxy.git image-proxy

set ownership

chown -R www-data:www-data image-proxy

install dependancies

cd image-proxy
composer install

set webroot to path image-proxy/public

edit settings.php

replace the uid and key with values given to the requsting site. These values must match.

Usage by the requsting site

add class with composer

composer require blocktrail/cryptojs-aes-php

use class in site

use Blocktrail\CryptoJSAES\CryptoJSAES;

to return image without modification

$encrypted = CryptoJSAES::encrypt($url, $key);
return 'http://image_proxy_url/image?' . base64_encode($encrypted . '&uid=' . uid);

to return image and resize the image

$encrypted = CryptoJSAES::encrypt("$url&width={$width}&height={$height}", $key);
return 'http://image_proxy_url/image?' . base64_encode($encrypted . '&uid=' . uid);