1 #coding: utf-8
 2 import  ldap
 3 ‘‘‘
 4 实现LDAP用户登录验证，首先获取用户的dn，然后再验证用户名和密码
 5 ‘‘‘
 6 
 7 ldappath = "ldap://xxxx"#ldap服务器地址
 8 baseDN = "DC=aaaa,DC=bbbb,DC=com"#根目录
 9 ldapuser = "xxxx";#ldap服务器用户名
10 ldappass = "xxxx";#ldap服务器密码
11 
12 #获取用户的dn
13 def _validateLDAPUser(user):
14     try:
15         l = ldap.initialize(ldappath)
16         l.protocol_version = ldap.VERSION3
17         l.simple_bind(ldapuser,ldappass)
18 
19         searchScope  = ldap.SCOPE_SUBTREE
20         searchFiltername = "sAMAccountName"
21         retrieveAttributes = None
22         searchFilter = ‘(‘ + searchFiltername + "=" + user +‘)‘
23 
24         ldap_result_id = l.search(baseDN, searchScope, searchFilter, retrieveAttributes)
25         result_type, result_data = l.result(ldap_result_id,1)
26         if(not len(result_data) == 0):
27           r_a,r_b = result_data[0]
28           print r_b["distinguishedName"]
29           return 1, r_b["distinguishedName"][0]
30         else:
31           return 0, ‘‘
32     except ldap.LDAPError, e:
33         print e
34         return 0, ‘‘
35     finally:
36         l.unbind()
37         del l
38 
39 #连接超时，尝试多次连接
40 def GetDn(user, trynum = 30):
41     i = 0
42     isfound = 0
43     foundResult = ""
44     while(i < trynum):
45         isfound, foundResult = _validateLDAPUser(user)
46         if(isfound):
47           break
48         i+=1
49     return foundResult
50 
51 def LDAPLogin(userName,Password):
52     try:
53         if(Password==""):
54             print "PassWord empty"
55             return
56         dn = GetDn(userName,10)
57         if(dn==‘‘):
58             print "Not Exist User"
59             return
60         my_ldap = ldap.initialize(ldappath)
61         print my_ldap.simple_bind_s(dn,Password)
62         print "Login Ok"
63     except Exception,e:
64         print "Login Fail"
65         # print str(e)
66 
67 LDAPLogin("用户名","密码")