When using a CAS server, the users only have a temporary email
`change@me-foo-cas.com` which can't be changed but by an
administrator.
We need a new environment variable like for SAML to assume the email
from CAS is verified.
* config/initializers/omniauth.rb: define CAS option for assuming
email are always verified.
* .env.nanobox: add new variable as an example.
# CAS_LOCATION_KEY='location'
# CAS_IMAGE_KEY='image'
# CAS_PHONE_KEY='phone'
+# CAS_SECURITY_ASSUME_EMAIL_IS_VERIFIED=true
# Optional SAML authentication (cf. omniauth-saml)
# SAML_ENABLED=true
cas_options[:location_key] = ENV['CAS_LOCATION_KEY'] || 'location'
cas_options[:image_key] = ENV['CAS_IMAGE_KEY'] || 'image'
cas_options[:phone_key] = ENV['CAS_PHONE_KEY'] || 'phone'
+ cas_options[:security] = {}
+ cas_options[:security][:assume_email_is_verified] = ENV['CAS_SECURITY_ASSUME_EMAIL_IS_VERIFIED'] == 'true'
config.omniauth :cas, cas_options
end