Opnsense CAS SSO auth for captive portal

This project aims to add Cas authentication method to the core captiveportal module. It uses a PHP enabled captive portal web server, and phpCAS client lib (https://github.com/apereo/phpCAS).

The project is in dev state, and needs many manual config on the Opnsense Console

What's in the project ?

htdocs

the cp template with phpCAs library.

/usr/local/etc/php.ini

the php.ini with required extensions

scripts

shell script to copy required libraries in the CP chroot

opnsense

Modified files from the core captive portal. Paths from /usr/local/opnsenses are included

INSTALL

1. In Service/Captive portal, add a captive portal zone with No authentication

2. Add you CAS's server IP in allowed list

3. Copy the project in /var/captiveportal/zone0/

4. On opnsense console :

   # cd /var/captiveportal/zone0/scripts
   # sh copylibs.sh

5. Overwrite the core files of opnsense tree

6. Apply CP modification from ui to generate the webserver config.