The name of the filter initialization parameter the value of which must be
a whitespace delimited list of services (ProxyTicketReceptors) authorized
to proxy authentication to the service filtered by this Filter.
The name of the filter initialization parameter the value of which is the
value the Filter should send for the gateway parameter on the CAS login
request.
The name of the filter initialization parameter the value of which must be
the https: URL to which CAS should send Proxy Granting Tickets when this
filter validates tickets.
The name of the filter initialization parameter the value of which must be
the String that should be sent as the "renew" parameter on the request for
login and validation.
The name of the filter initialization parameter the value of which
indicates whether this filter should wrap requests to expose the
authenticated username.