C.A.S checking/detections

[David Touzeau]

Dear

I need to force Nginx to detect if client have a valid CAS ticket and be 
authentified to the CAS system.
This to allow or ban access to websites.
Is anybody have tried to build this infrastructure ?

I have tried the CAS Module for nginx but is seems an old module that did 
not support latest nginx version.
https://github.com/bnoordhuis/ngx_http_auth_cas_module

Best regards