YOURLS plugin to use md5 salt

Description

The YOURLS Open Source URL shortener used an md5 hash within the yourls_salt function in version 1.7.4, but somewhere between 1.7.4 and 1.9.1, this was changed to use hash_hmac with a default yourls_hmac_algo of sha256.

If you were using the Secret signature token for Secure passwordless API calls in version 1.7.4 and then upgraded to version 1.9.1, this change would cause the token to change, thus causing the API calls to fail.

This plugin provides backwards compatibiliy for the yours_salt function to continue to use md5, so that upgrading YOURLS from 1.7.4 to 1.9.1 does not cause API calls to stop working.

Installation

1. Clone the repo

   cd /tmp
   git clone https://github.com/ashleykleynhans/yourls-plugin-md5-salt.git

2. Copy the plugin to your YOURLS code

   cp -r yourls-plugin-md5-salt /var/www/html/user/plugins

3. Enable the plugin in the YOURLS admin interface in your web browser.