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from flask_peewee.auth import Auth
from models import User
from app import app, db, pad
from datetime import datetime
import ldap
class LdapAuth(Auth):
def get_user_model(self):
return User
def authenticate(self, username, password):
ldap.protocol_version = 3
l = ldap.initialize(app.config['LDAP']['host'])
l.set_option( ldap.OPT_X_TLS_DEMAND, True )
try:
user_dn = self._format_dn([('uid', username)])
l.simple_bind_s(user_dn, password)
except ldap.INVALID_CREDENTIALS:
return False
try:
user = User.get(User.username == username)
except User.DoesNotExist:
user_data = l.search_s(user_dn, ldap.SCOPE_BASE)
if (len(user_data) != 1):
return False
(dn, user_data) = user_data[0]
user = User.create(
username = username,
email = user_data['mail'][0],
api_id = pad.createAuthorIfNotExistsFor(user_dn, username))
return user
def login_user(self, user):
user.last_login = datetime.now()
user.save()
return super(LdapAuth, self).login_user(user)
def _format_dn(self, attr, with_base_dn = True):
if with_base_dn:
attr.extend(app.config['LDAP']['base_dn'])
dn = ['%s=%s' % (item[0], self._escape(item[1])) for item in attr]
return ','.join(dn)
def _escape(self, s, wildcard=False):
chars_to_escape = ['\\',',','=','+','<','>',';','"','\'','#','(',')','\0']
if not wildcard:
chars_to_escape.append('*')
escape = lambda x,y: x.replace(y,'\%02X' % ord(y))
return reduce(escape, chars_to_escape, s)
auth = LdapAuth(app, db, user_model=User)
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