django-编写注册接口（django重写认证）

1.编写注册接口

---

1.1 user/urls.py 中添加路由

urlpatterns = [ 
     path('register/', views.RegisterView.as_view()), # 注册视图, /user/register/ 
]

1.2 user/views.py中写注册视图函数

class RegisterView(APIView):
    """
    用户注册, 权限是: 匿名用户可访问
    """
    # 自定义权限类
    permission_classes = (AllowAny,)

    def post(self, request):
        """
        接收邮箱和密码, 前端校验两遍一致性, 注册成功后返回成功, 然后用户自行登录获取token
        1. 随机用户名
        2. 生成用户
        3. 设置用户密码
        4. 保存用户 :param request: :return: {'code':0,'msg':'注册成功'}
        """
        email = request.data.get('email')
        password = request.data.get('password')
        if all([email, password]):
            pass
        else:
            return Response({'code': 9999, 'msg': '参数不全'})

        rand_name = self.randomUsername()

        user = User(username=rand_name, email=email)
        user.set_password(password)
        user.save()

        return Response({'code': 0, 'msg': '注册成功'})

    def randomUsername(self):
        """
        生成随机用户名: 格式: SYL + 年月日时分 + 5位随机数 :return:
        """

        d = datetime.datetime.now()
        base = 'SYL'
        time_str = '%04d%02d%02d%02d%02d' % (d.year, d.month, d.day, d.hour, d.minute)
        rand_num = str(random.randint(10000, 99999))
        return base + time_str + rand_num

2.重写django认证

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2.1 syl/settings.py 中指定自定义后端认证函数位置

# 自定义验证后端 
AUTHENTICATION_BACKENDS = ['user.utils.EmailAuthBackend']

2.2 user/utils.py 中重写认证函数

# 以前使用username进行用户验证，现在修改成email进行验证 
class EmailAuthBackend:
    def authenticate(self, request, username=None, password=None):
        try:
            user = User.objects.get(username=username)
        except Exception as e:
            user = None
        if not user:
            try:
                user = User.objects.get(email=username)
            except Exception as e:
                user = None
        if user and user.check_password(password):
            return user
        else:
            return None

    def get_user(self, user_id):
        try:
            return User.objects.get(pk=user_id)
        except User.DoesNotExist:
            return None

3.注册用户 & 测试登录

---

http://192.168.56.100:8888/user/register/

3.2 登录接口测试

注： 认证时只能识别username，所以必须要在请求中携带username字段

http://192.168.56.100:8888/user/login/

3.3 获取用户列表接口测试

• 访问接口

http://192.168.56.100:8888/user/user/5/

• 测试自定义权限

# 自定义权限类 
permission_classes = (MyPermission,) 
# 自定义认证类, 自定义会覆盖全局配置 
authentication_classes = (JSONWebTokenAuthentication,)