Python 操作LDAP实现用户统一认证密码修改功能

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最近做了一个单点登录系统，使用的 openLDAP 存储用户和组信息。封装了一个 ldap 的操作类。ldap 这东西还是蛮复杂的，用以备忘吧。要是不知道 LDAP 是什么东西，请把鼠标移到浏览器右上角，mac 系统移到左上角，点小叉叉。呵呵……

#-*- coding: UTF-8 -*-
import sys,ldap
import ldap
LDAP_HOST = ‘10.10.10.10’
USER = ‘cn=admin,dc=gccmx,dc=cn’
PASSWORD = ‘yourpass’
BASE_DN = ‘dc=gccmx,dc=cn’
class LDAPTool:

def __init__(self,ldap_host=None,base_dn=None,user=None,password=None):
if not ldap_host:
ldap_host = LDAP_HOST
if not base_dn:
self.base_dn = BASE_DN
if not user:
user = USER
if not password:
password = PASSWORD
try:
self.ldapconn = ldap.open(ldap_host)
self.ldapconn.simple_bind(user,password)
except ldap.LDAPError,e:
print e

# 根据表单提交的用户名，检索该用户的 dn, 一条 dn 就相当于数据库里的一条记录。
# 在 ldap 里类似 cn=username,ou=users,dc=gccmx,dc=cn, 验证用户密码，必须先检索出该 DN
def ldap_search_dn(self,uid=None):
obj = self.ldapconn
obj.protocal_version = ldap.VERSION3
searchScope = ldap.SCOPE_SUBTREE
retrieveAttributes = None
searchFilter = “cn=” + uid

try:
ldap_result_id = obj.search(self.base_dn, searchScope, searchFilter, retrieveAttributes)
result_type, result_data = obj.result(ldap_result_id, 0)
# 返回数据格式
#(‘cn=django,ou=users,dc=gccmx,dc=cn’,
# {‘objectClass’: [‘inetOrgPerson’, ‘top’],
# ‘userPassword’: [‘{MD5}lueSGJZetyySpUndWjMBEg==’],
# ‘cn’: [‘django’], ‘sn’: [‘django’] } )
#
if result_type == ldap.RES_SEARCH_ENTRY:
#dn = result[0][0]
return result_data[0][0]
else:
return None
except ldap.LDAPError, e:
print e

# 查询用户记录，返回需要的信息
def ldap_get_user(self,uid=None):
obj = self.ldapconn
obj.protocal_version = ldap.VERSION3
searchScope = ldap.SCOPE_SUBTREE
retrieveAttributes = None
searchFilter = “cn=” + uid
try:
ldap_result_id = obj.search(self.base_dn, searchScope, searchFilter, retrieveAttributes)
result_type, result_data = obj.result(ldap_result_id, 0)
if result_type == ldap.RES_SEARCH_ENTRY:
username = result_data[0][1][‘cn’][0]
email = result_data[0][1][‘mail’][0]
nick = result_data[0][1][‘sn’][0]
result = {‘username’:username,’email’:email,’nick’:nick}
return result
else:
return None
except ldap.LDAPError, e:
print e

# 用户验证，根据传递来的用户名和密码，搜索 LDAP，返回 boolean 值
def ldap_get_vaild(self,uid=None,passwd=None):
obj = self.ldapconn
target_cn = self.ldap_search_dn(uid)
try:
if obj.simple_bind_s(target_cn,passwd):
return True
else:
return False
except ldap.LDAPError,e:
print e

# 修改用户密码
def ldap_update_pass(self,uid=None,oldpass=None,newpass=None):
modify_entry = [(ldap.MOD_REPLACE,’userpassword’,newpass)]
obj = self.ldapconn
target_cn = self.ldap_search_dn(uid)
try:
obj.simple_bind_s(target_cn,oldpass)
obj.passwd_s(target_cn,oldpass,newpass)
return True
except ldap.LDAPError,e:
return False