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jumpserver/apps/authentication/backends/openid/models.py

157 lines
4.5 KiB

# -*- coding: utf-8 -*-
#
from django.db import transaction
from django.contrib.auth import get_user_model
from keycloak.realm import KeycloakRealm
from keycloak.keycloak_openid import KeycloakOpenID
from .signals import post_create_openid_user
OIDT_ACCESS_TOKEN = 'oidt_access_token'
class OpenIDTokenProfile(object):
def __init__(self, user, access_token, refresh_token):
"""
:param user: User object
:param access_token:
:param refresh_token:
"""
self.user = user
self.access_token = access_token
self.refresh_token = refresh_token
def __str__(self):
return "{}'s OpenID token profile".format(self.user.username)
class Client(object):
def __init__(self, server_url, realm_name, client_id, client_secret):
self.server_url = server_url
self.realm_name = realm_name
self.client_id = client_id
self.client_secret = client_secret
self.realm = self.new_realm()
self.openid_client = self.new_openid_client()
self.openid_connect_client = self.new_openid_connect_client()
def new_realm(self):
return KeycloakRealm(
server_url=self.server_url,
realm_name=self.realm_name,
headers={}
)
def new_openid_connect_client(self):
"""
:rtype: keycloak.openid_connect.KeycloakOpenidConnect
"""
openid_connect = self.realm.open_id_connect(
client_id=self.client_id,
client_secret=self.client_secret
)
return openid_connect
def new_openid_client(self):
"""
:rtype: keycloak.keycloak_openid.KeycloakOpenID
"""
return KeycloakOpenID(
server_url='%sauth/' % self.server_url,
realm_name=self.realm_name,
client_id=self.client_id,
client_secret_key=self.client_secret,
)
def update_or_create_from_password(self, username, password):
"""
Update or create an user based on an authentication username and password.
:param str username: authentication username
:param str password: authentication password
:return: OpenIDTokenProfile
"""
token_response = self.openid_client.token(
username=username, password=password
)
return self._update_or_create(token_response=token_response)
def update_or_create_from_code(self, code, redirect_uri):
"""
Update or create an user based on an authentication code.
Response as specified in:
https://tools.ietf.org/html/rfc6749#section-4.1.4
:param str code: authentication code
:param str redirect_uri:
:rtype: OpenIDTokenProfile
"""
token_response = self.openid_connect_client.authorization_code(
code=code, redirect_uri=redirect_uri)
return self._update_or_create(token_response=token_response)
def _update_or_create(self, token_response):
"""
Update or create an user based on a token response.
`token_response` contains the items returned by the OpenIDConnect Token API
end-point:
- id_token
- access_token
- expires_in
- refresh_token
- refresh_expires_in
:param dict token_response:
:rtype: OpenIDTokenProfile
"""
userinfo = self.openid_connect_client.userinfo(
token=token_response['access_token'])
with transaction.atomic():
user, _ = get_user_model().objects.update_or_create(
username=userinfo.get('preferred_username', ''),
defaults={
'email': userinfo.get('email', ''),
'first_name': userinfo.get('given_name', ''),
'last_name': userinfo.get('family_name', '')
}
)
oidt_profile = OpenIDTokenProfile(
user=user,
access_token=token_response['access_token'],
refresh_token=token_response['refresh_token'],
)
if user:
post_create_openid_user.send(sender=user.__class__, user=user)
return oidt_profile
def __str__(self):
return self.client_id
class Nonce(object):
"""
The openid-login is stored in cache as a temporary object, recording the
user's redirect_uri and next_pat
"""
def __init__(self, redirect_uri, next_path):
import uuid
self.state = uuid.uuid4()
self.redirect_uri = redirect_uri
self.next_path = next_path