@Override
    public URI getLoginURI() throws GuacamoleException {
        return UriBuilder.fromUri(confService.getAuthorizationEndpoint())
                .path(CAS_LOGIN_URI)
                .queryParam("service", confService.getRedirectURI())
                .build();
    }
Service for validating received ID tickets.
extensions/guacamole-auth-sso/modules/guacamole-auth-sso-cas/src/main/java/org/apache/guacamole/auth/cas/AuthenticationProviderService.java