def __init__(self, srv, mako_template, template_lookup, pwd, return_to):
"""
:param srv: The server instance
:param mako_template: Which Mako template to use
:param pwd: Username/password dictionary like database
:param return_to: Where to send the user after authentication
:return:
"""
UserAuthnMethod.__init__(self, srv)
self.mako_template = mako_template
self.template_lookup = template_lookup
self.passwd = pwd
self.return_to = return_to
self.active = {}
self.query_param = "upm_answer"
self.aes = AES(srv.iv)
