JWT安装配置

文章目录

1.1安装JWT1.2`syl/settings.py` 配置jwt载荷中的有效期设置1.3 `syl/settings.py` JWT结合DRF进行认证权限配置1.5 在user/utils.py中从写jwt_response_payload_handler 2. postman测试接口2.1 测试登录接口，获取token2.2 使用获得的token获取所有用户信息 3.源码分析

1.登录接口 2.刷新接口 3.自定义返回格式

1.1安装JWT

pip install djangorestframework-jwt==1.11.0

1.2syl/settings.py 配置jwt载荷中的有效期设置

# jwt载荷中的有效期设置 JWT_AUTH = { # 1.token前缀：headers中 Authorization 值的前缀 'JWT_AUTH_HEADER_PREFIX': 'JWT', # 2.token有效期：一天有效 'JWT_EXPIRATION_DELTA': datetime.timedelta(days=1), # 3.刷新token：允许使用旧的token换新token 'JWT_ALLOW_REFRESH': True, # 4.token有效期：token在24小时内过期, 可续期token 'JWT_REFRESH_EXPIRATION_DELTA': datetime.timedelta(hours=24), # 5.自定义JWT载荷信息：自定义返回格式，需要手工创建 'JWT_RESPONSE_PAYLOAD_HANDLER': 'user.utils.jwt_response_payload_handler', }

1.3 syl/settings.py JWT结合DRF进行认证权限配置

# 在DRF配置文件中开启认证和权限 REST_FRAMEWORK = { ... # 用户登陆认证方式 'DEFAULT_AUTHENTICATION_CLASSES': [ 'rest_framework_jwt.authentication.JSONWebTokenAuthentication', # 在 DRF中配置JWT认证 # 'rest_framework.authentication.SessionAuthentication', # 使用session时 的认证器 # 'rest_framework.authentication.BasicAuthentication' # 提交表单时的认 证器 ], # 权限配置, 顺序靠上的严格 'DEFAULT_PERMISSION_CLASSES': [ #'rest_framework.permissions.IsAdminUser', # 管理员可以访问 'rest_framework.permissions.IsAuthenticated', # 全局配置只有认 证用户可以访问接口 # 'rest_framework.permissions.IsAuthenticatedOrReadOnly', # 认证用户可以访 问, 否则只能读取 # 'rest_framework.permissions.AllowAny', # 所有用户都可以 访问 ], ... }

1.5 在user/utils.py中从写jwt_response_payload_handler

def jwt_response_payload_handler(token, user=None, request=None, role=None): """ 自定义jwt认证成功返回数据 :token 返回的jwt :user 当前登录的用户信息[对象] :request 当前本次客户端提交过来的数据 :role 角色 """ if user.first_name: name = user.first_name else: name = user.username return { 'authenticated': 'true', 'id': user.id, "role": role, 'name': name, 'username': user.username, 'email': user.email, 'token': token, }

2. postman测试接口

2.1 测试登录接口，获取token

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

'''自定义认证和权限优先级更高，可以覆盖settings.py中的 ''' # 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,)

2.2 使用获得的token获取所有用户信息

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

3.源码分析

class JSONWebTokenAPIView(APIView): """ Base API View that various JWT interactions inherit from. """ permission_classes = () authentication_classes = () def get_serializer_context(self): """ Extra context provided to the serializer class. """ return { 'request': self.request, 'view': self, } def get_serializer_class(self): """ Return the class to use for the serializer. Defaults to using `self.serializer_class`. You may want to override this if you need to provide different serializations depending on the incoming request. (Eg. admins get full serialization, others get basic serialization) """ assert self.serializer_class is not None, ( "'%s' should either include a `serializer_class` attribute, " "or override the `get_serializer_class()` method." % self.__class__.__name__) return self.serializer_class def get_serializer(self, *args, **kwargs): """ Return the serializer instance that should be used for validating and deserializing input, and for serializing output. """ serializer_class = self.get_serializer_class() kwargs['context'] = self.get_serializer_context() return serializer_class(*args, **kwargs) def post(self, request, *args, **kwargs): serializer = self.get_serializer(data=request.data) if serializer.is_valid(): user = serializer.object.get('user') or request.user # User表对象 token = serializer.object.get('token') # 获取到生成的 token response_data = jwt_response_payload_handler(token, user, request) response = Response(response_data) if api_settings.JWT_AUTH_COOKIE: expiration = (datetime.utcnow() + api_settings.JWT_EXPIRATION_DELTA) response.set_cookie(api_settings.JWT_AUTH_COOKIE, token, expires=expiration, httponly=True) return response return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)