django Token权限认证

django Token权限认证

• 重写rest_framework中的TokenAuthentication，设置token的过期时间

1. users.models.py

   # Create your models here.
   from rest_framework.authtoken.models import Token
   
   
   class PrivateToken(Token):
       """
       继承Token模型，方便后期扩展
       """
   
       class Meta:
           verbose_name = 'Private Token'
   

2. users.authentication.py

   from datetime import timedelta
   
   from django.conf import settings
   from django.utils import timezone
   from django.utils.translation import ugettext_lazy as _
   from rest_framework import authentication, exceptions
   from users.models import PrivateToken
   
   
   class PrivateTokenAuthentication(authentication.TokenAuthentication):
       """
       API接口Token认证
       """
       model = PrivateToken
   
       def authenticate_credentials(self, key):
           model = self.get_model()
           try:
               token = model.objects.select_related('user').get(key=key)
           except model.DoesNotExist:
               raise exceptions.AuthenticationFailed(_('Invalid token.'))
   
           if not token.user.is_active:
               raise exceptions.AuthenticationFailed(_('User inactive or deleted.'))
   
           if timezone.now() > (token.created + timedelta(seconds=settings.TOKEN_EXPIRATION)):
               raise exceptions.AuthenticationFailed(_('Token has expired'))
           return (token.user, token)
   

3. settings.py

   REST_FRAMEWORK = {
          
       # Use Django's standard `django.contrib.auth` permissions,
       # or allow read-only access for unauthenticated users.
       'EXCEPTION_HANDLER': 'common.views.exception_handler',
       'DEFAULT_PERMISSION_CLASSES': (
           'rest_framework.permissions.IsAuthenticated',
       ),
       'DEFAULT_RENDERER_CLASSES': (
           'rest_framework.renderers.JSONRenderer',
           'rest_framework.renderers.BrowsableAPIRenderer',
       ),
       'DEFAULT_PARSER_CLASSES': (
           'rest_framework.parsers.JSONParser',
           'rest_framework.parsers.FormParser',
           'rest_framework.parsers.MultiPartParser',
           'rest_framework.parsers.FileUploadParser',
       ),
       'DEFAULT_AUTHENTICATION_CLASSES': (
           'users.authentication.PrivateTokenAuthentication',  # 这里添加
           # 'users.authentication.SessionAuthentication',
       ),
       'DEFAULT_FILTER_BACKENDS': (
           'django_filters.rest_framework.DjangoFilterBackend',
           'rest_framework.filters.SearchFilter',
           'rest_framework.filters.OrderingFilter',
       ),
       'ORDERING_PARAM': "order",
       'SEARCH_PARAM': "search",
       'DATETIME_FORMAT': '%Y-%m-%d %H:%M:%S %z',
       'DATETIME_INPUT_FORMATS': ['%Y-%m-%d %H:%M:%S %z'],
       'PAGINATE_BY': 10,
       'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.LimitOffsetPagination',
       'PAGE_SIZE': 15
   }