Implement authorization middleware
Should be using Oauth2/OIDC
https://gitlab.cern.ch/webservices/web-redirector-v2/-/blob/dev/app/api/auth.go#L11
Should be using Oauth2/OIDC
https://gitlab.cern.ch/webservices/web-redirector-v2/-/blob/dev/app/api/auth.go#L11