# user.py
"""
Simple user class.

20010619 JJD Created.
20021115 JJD Remove group-related features and simplify.

"""
import sha
from toa4.const import TAB, NULLSTRING

class User:
    def __init__(self,
        username,
        password=NULLSTRING,
        new=0,
        securitylevel=0):
        """If new is nonzero, the password argument is assumed to be
        unencrypted, so it gets encrypted. Otherwise, the password is stored as-is."""
        self._username = username
        if not new:
            self._password = password
        else:
            self._password = self._encrypt(password)
        self._securitylevel = securitylevel

    def validatePassword(self, word):
        return (self._encrypt(word) == self._password)

    def setPassword(self, newpassword):
        """The argument is an unencrypted string."""
        self._password = self._encrypt(newpassword)

    def username(self):
        return self._username

    def securitylevel(self):
        return self._securitylevel

    def setSecuritylevel(self, n):
        self._securitylevel = n

    def dump(self):
        return self.__dict__.copy()

    def __str__(self):
        return self._username

    def __repr__ (self):
        return "<%s at %x: %s>" % (self.__class__.__name__, id(self), self._username)

    def _encrypt(self, word):
        x = sha.new(self._username.lower()+word+'__repr__')
        return x.hexdigest()