#-*- coding: utf-8 -*-

# Copyright 2008-2010 Mir Calculate Ltd. http://www.calculate-linux.org
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

import ldap
from cl_utils import _error

class ldapFun(_error):
    '''Объект для работы с LDAP сервером

        подключение к серверу и поиск данных
    '''
    def __init__(self, dnUser, password, host="localhost"):
        self.conLdap = False
        # Получаем соединение с LDAP
        try:
            self.conLdap = self.__ldapConnect(dnUser, password, host)
        except ldap.LDAPError, e:
            self.setError(e[0]['desc'])

    def __ldapConnect(self, dnUser, password, host):
        """Соединение с LDAP сервером"""
        conLdap = ldap.initialize('ldap://%s'%host)
        conLdap.simple_bind_s(dnUser, password)
        return conLdap

    def ldapSearch(self,baseDN, searchScope, searchFilter, retrieveAttributes):
        try:
            ldap_result_id = self.conLdap.search(baseDN, searchScope,
                                                searchFilter,
                                                retrieveAttributes)
            result_set = []
            while 1:
                result_type, result_data = self.conLdap.result(ldap_result_id,
                                                               0)
                if (result_data == []):
                    break
                else:
                    if result_type == ldap.RES_SEARCH_ENTRY:
                        result_set.append(result_data)
        except ldap.NO_SUCH_OBJECT:
            return []
        except:
            return False
        return result_set