def check_host(host):
'''
Check we are running on the correct host
see the notes about the use of flock();
and the affects of lockf();
'''
assert User.host() == host, "AberMUD is only available on {}, not on {}".format(host, User.host())
def login(username=None):
'''
Does all the login stuff
The whole login system is called from this
'''
# Check if banned first
b = User.chkbnid(User.host())
# cuserid(NULL));
logger.debug("BANNED %d", b)
if username:
username = username.lower()
user = User.by_username(username)
if user:
authenticate(user)
return user
# Get the user name
user = None
while not user:
user = input_username(username)
username = ''
if user.id:
# Password checking
authenticate(user)
else:
register(user)
cls()
return user
