urlpatterns = [
　　path(‘weibo/callback/‘, views.OauthWeiboCallback.as_view()), #
/oauth/weibo/callback/
]

from .models import OauthUser
from rest_framework_jwt.serializers import jwt_payload_handler,
jwt_encode_handler
from user.utils import jwt_response_payload_handler


# 通过vue前端传入的code，微博身份验证
class OauthWeiboCallback(APIView):
    # 自定义权限类
    permission_classes = (AllowAny,)
def post(self, request):
    # 接收vue端传过来的code（微博的用户code）
    # 1.使用微博用户code+微博开发者账号信息换取微博的认证access_token
    code = request.data.get(‘code‘)
    data = {
        ‘client_id‘: ‘3516473472‘,
        ‘client_secret‘: ‘7862ee35a0dc6f0345d0464dc34f14fc‘,
        ‘grant_type‘: ‘authorization_code‘,
        ‘code‘: code,
        ‘redirect_uri‘: ‘http://127.0.0.1:8888/oauth/callback/‘,
    }
    url = ‘https://api.weibo.com/oauth2/access_token‘
    data = requests.post(url=url, data=data).json() # 拿取请求的返回结果
    access_token = data.get(‘uid‘) # 获取到的微博token
    weibo_uid = data.get(‘access_token‘) # 获取到少码用户的id
    
    
    # 2. 根据uid 查询绑定情况
    try:
        oauth_user = OauthUser.objects.get(uid=weibo_uid, oauth_type=‘1‘)
    except Exception as e:
        oauth_user = None
    # 返回动作, 登录成功/需要绑定用户 type 0 登录成功, 1, 授权成功, 需要绑定
    if oauth_user:
        # 4. 如果绑定了, 返回token, 登录成功
        user = oauth_user.user


        payload = jwt_payload_handler(user)
        token = jwt_encode_handler(payload)
        # jwt_response_payload_handler为user模块定义的jwt返回的信息
        data = jwt_response_payload_handler(token, user)
        data[‘type‘] = ‘0‘ # 指定为登录成功
        return Response({‘code‘: 0, ‘msg‘: ‘登录成功‘, ‘data‘: data})
    else:
        # 5. 如果没绑定, 返回标志, 让前端跳转到绑定页面
        return Response({‘code‘: 0, ‘msg‘: ‘授权成功‘, ‘data‘: {‘type‘: ‘1‘,
‘uid‘: weibo_uid}})

# 把三方的用户信息，和本地的用户信息进行绑定
class OauthUser(models.Model):
    OAUTHTYPE = (
        (‘1‘, ‘weibo‘),
        (‘2‘, ‘weixin‘),
    )
    uid = models.CharField(‘三方用户id‘, max_length=64)
# 三方用户id
    user = models.ForeignKey(‘user.User‘, on_delete=models.CASCADE)
# 本地用户外键，关联User表
    oauth_type = models.CharField(‘认证类型‘, max_length=10, choices=OAUTHTYPE)
# 1,2 ...