def normalize_user_principal(value):
principal = kerberos.Principal(normalize_principal(value))
lowercase_components = ((principal.username.lower(),) +
principal.components[1:])
return unicode(
kerberos.Principal(lowercase_components, realm=principal.realm))
def get_current_password(principal):
"""
If the user is changing their own password then return None so the
current password is prompted for, otherwise return a fixed value to
be ignored later.
"""
current_principal = krb_utils.get_principal()
if current_principal == unicode(normalize_principal(principal)):
return None
else:
return MAGIC_VALUE