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# -*- coding: utf-8 -*-
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# Copyright 2008-2016 Mir Calculate. http://www.calculate-linux.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import ldap
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from utils.common import _error
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from collections import defaultdict
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class ldapFun(_error):
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"""
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Объект для работы с LDAP сервером
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подключение к серверу и поиск данных
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"""
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def __init__(self, dnUser, password, host="localhost"):
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self.conLdap = False
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# Получаем соединение с LDAP
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try:
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self.conLdap = self.__ldapConnect(dnUser, password, host)
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except ldap.LDAPError, e:
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self.setError(e[0]['desc'])
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def __ldapConnect(self, dnUser, password, host):
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"""Соединение с LDAP сервером"""
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con_ldap = ldap.initialize('ldap://%s' % host)
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con_ldap.simple_bind_s(dnUser, password)
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return con_ldap
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def ldapSearch(self, base_dn, search_scope, search_filter, retrieve_attrs):
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try:
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ldap_result_id = self.conLdap.search(base_dn, search_scope,
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search_filter,
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retrieve_attrs)
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result_set = []
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while 1:
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result_type, result_data = self.conLdap.result(
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ldap_result_id, 0)
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if isinstance(result_data, list) and not result_data:
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break
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else:
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if result_type == ldap.RES_SEARCH_ENTRY:
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result_set.append(result_data)
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except ldap.NO_SUCH_OBJECT:
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return []
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except Exception:
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return False
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return result_set
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class ldapUser(_error):
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"""Получение данных для пользователя из LDAP"""
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# Данные из /etc/ldap.conf
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_dictData = {}
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# Объект LDAP
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ldapObj = False
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# Подключение к LDAP
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conLdap = False
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def addDN(self, *arg):
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"""
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Append text DN elements
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"""
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return ",".join(x for x in arg if x)
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def getDataInLdapConf(self, bindData=True, cache=True):
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"""Получение данных из /etc/ldap.conf"""
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data = [("host", 'host'),
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("usersDN", 'nss_base_passwd'),
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("groupsDN", 'nss_base_group')]
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if bindData:
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data += [("bindDn", 'binddn'), ("bindPw", 'bindpw')]
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names_data = [x[0] for x in data]
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# Данные из кеша, если он есть
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if (cache and self._dictData and
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set(names_data) <= set(self._dictData.keys())):
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return self._dictData
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file_name = "/etc/ldap.conf"
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get_str_list = lambda x: reduce(lambda x, y: [x, y.upper()], ([x] * 2))
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workdata = map(lambda x: (x[0], get_str_list(x[1]), len(x[1])), data)
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dict_data = defaultdict(list)
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delimeter = (" ", "\t")
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try:
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for line in open(file_name):
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for name, keys, lenKey in workdata:
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if (name not in dict_data.keys() and
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any(line.startswith(x) for x in keys) and
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len(line) > lenKey):
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spl = line[lenKey]
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if spl in delimeter:
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param_value = line.rpartition(spl)[2]
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if name in ("usersDN", "groupsDN"):
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dict_data[name].append(
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param_value.partition('?')[0].strip())
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else:
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dict_data[name].append(param_value.strip())
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except Exception:
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# self.setError(_("Can not open %s")%fileName)
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return False
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if set(dict_data.keys()) == set(names_data):
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# Кеширование данных
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if cache:
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self._dictData.clear()
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self._dictData.update(dict_data)
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return dict_data
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else:
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return {}
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def getBindConnectData(self):
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"""Получение данных для соединения с LDAP bind пользователем"""
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configdata = self.getDataInLdapConf()
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if configdata:
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bind_dn = configdata["bindDn"][0]
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bind_pw = configdata["bindPw"][0]
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host = configdata["host"][0]
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return bind_dn, bind_pw, host
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return False
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def getUsersDN(self):
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"""Получение DN пользователей"""
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configdata = self.getDataInLdapConf(bindData=False)
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if configdata:
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return self._dictData["usersDN"][0]
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return False
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def getHost(self):
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"""Получение LDAP хоста"""
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configdata = self.getDataInLdapConf(bindData=False)
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if configdata:
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return configdata["host"][0]
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return False
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def getGroupsDN(self):
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"""Получение списка DN групп"""
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configdata = self.getDataInLdapConf(bindData=False)
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if configdata:
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return self._dictData["groupsDN"]
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return False
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def connectLdap(self):
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"""
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Connect to LDAP
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"""
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connectData = self.getBindConnectData()
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if not connectData:
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return {}
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bindDn, bindPw, host = connectData
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self.getUsersDN()
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# Соединяемся с LDAP
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return self.ldapConnect(bindDn, bindPw, host)
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def getUserLdapInfo(self, user_name, shadowAttr=False):
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"""Выдаем информацию о пользователе из LDAP"""
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if not self.connectLdap():
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return False
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users_dn = self.getUsersDN()
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groups_dn = self.getGroupsDN()
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search_user = self.ldapObj.ldapSearch(users_dn, ldap.SCOPE_ONELEVEL,
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"uid=%s" % user_name, None)
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if not search_user:
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return False
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convert_dict = {'uid': ('user', 'uidNumber'),
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'gid': ('user', 'gidNumber'),
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'fullName': ('user', 'cn'),
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'mail': ('user', 'mail'),
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'jid': ('user', 'registeredAddress'),
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'home': ('user', 'homeDirectory'),
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'group': ('group', 'cn')}
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if shadowAttr:
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convert_dict.update({'loginShell': ('user', 'loginShell'),
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'shadowLastChange': (
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'user', 'shadowLastChange'),
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'shadowMin': ('user', 'shadowMin'),
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'shadowMax': ('user', 'shadowMax'),
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'shadowWarning': ('user', 'shadowWarning'),
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'shadowExpire': ('user', 'shadowExpire'),
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'shadowFlag': ('user', 'shadowFlag'),
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'groups': ('group', 'memberUid')})
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list_user_attr = [k for k, v in convert_dict.items() if v[0] == "user"]
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list_group_attr = [k for k, v in convert_dict.items()
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if v[0] == "group"]
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uid = ""
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gid = ""
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dict_out = {}
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for dict_attr in list_user_attr:
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ldap_attr = convert_dict[dict_attr][1]
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if ldap_attr in search_user[0][0][1]:
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dict_out[dict_attr] = search_user[0][0][1][ldap_attr][0]
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else:
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dict_out[dict_attr] = ""
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if dict_attr == 'uid':
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uid = dict_out[dict_attr]
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if dict_attr == 'gid':
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gid = dict_out[dict_attr]
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if gid:
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for dict_attr in list_group_attr:
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search_group = []
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ldap_attr = convert_dict[dict_attr][1]
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if dict_attr == "group":
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for groupDN in groups_dn:
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search_group = self.ldapObj.ldapSearch(
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groupDN, ldap.SCOPE_ONELEVEL, "gidNumber=%s" % gid,
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None)
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if search_group:
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break
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if search_group:
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data = search_group[0][0][1]
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if ldap_attr in data:
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dict_out[dict_attr] = data[ldap_attr][0]
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else:
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dict_out[dict_attr] = ""
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else:
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dict_out[dict_attr] = ""
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elif dict_attr == "groups":
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user_groups_data = []
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for groupDN in groups_dn:
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search_group = self.ldapObj.ldapSearch(
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groupDN, ldap.SCOPE_ONELEVEL,
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"%s=%s" % (ldap_attr, user_name),
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["cn", "gidNumber"])
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if search_group:
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user_groups_data.extend(
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[(x[0][1]["cn"][0], x[0][1]["gidNumber"][0])
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for x in search_group])
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dict_out[dict_attr] = user_groups_data
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if uid and gid:
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return dict_out
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else:
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return {}
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def ldapConnect(self, bind_dn, bind_pw, host):
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"""Подключение к LDAP"""
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if not self.ldapObj:
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ldap_obj = ldapFun(bind_dn, bind_pw, host)
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if ldap_obj.getError():
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ldap_obj.clearErrors()
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return False
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# Устанавливаем у объекта соединение и объект LDAP функций
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self.ldapObj = ldap_obj
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self.conLdap = ldap_obj.conLdap
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return True
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