# -*- coding: utf-8 -*-
# vim:set expandtab tabstop=4 shiftwidth=4:
#
# The MIT License (MIT)
# LdapCherry
# Copyright (c) 2014 Carpentier Pierre-Francois

import ldapcherry.ppolicy
import re


class PPolicy(ldapcherry.ppolicy.PPolicy):

    def __init__(self, config, logger):
        self.config = config
        self.min_length = self.get_param('min_length')
        self.min_upper = self.get_param('min_upper')
        self.min_digit = self.get_param('min_digit')

    def check(self, password):
        if len(password) < self.min_length:
            return {'match': False, 'reason': 'Password too short'}
        if len(re.findall(r'[A-Z]', password)) < self.min_upper:
            return {
                'match': False,
                'reason': 'Not enough upper case characters'
                }
        if len(re.findall(r'[0-9]', password)) < self.min_digit:
            return {'match': False, 'reason': 'Not enough digits'}
        return {'match': True, 'reason': 'password ok'}

    def info(self):
        return \
            "* Minimum length: %(len)d\n" \
            "* Minimum number of uppercase characters: %(upper)d\n" \
            "* Minimum number of digits: %(digit)d" % {
                'upper': self.min_upper,
                'len': self.min_length,
                'digit': self.min_digit
                }