|
+ """
+Handled exceptions raised by REST framework.
+
+In addition Django's built in 403 and 404 exceptions are handled.
+(`django.http.Http404` and `django.core.exceptions.PermissionDenied`)
+"""
+from __future__ import unicode_literals
+from rest_framework import status
+
+
+class APIException(Exception):
+ """
+ Base class for REST framework exceptions.
+ Subclasses should provide `.status_code` and `.detail` properties.
+ """
+ pass
+
+
+class ParseError(APIException):
+ status_code = status.HTTP_400_BAD_REQUEST
+ default_detail = 'Malformed request.'
+
+ def __init__(self, detail=None):
+ self.detail = detail or self.default_detail
+
+
+class AuthenticationFailed(APIException):
+ status_code = status.HTTP_401_UNAUTHORIZED
+ default_detail = 'Incorrect authentication credentials.'
+
+ def __init__(self, detail=None):
+ self.detail = detail or self.default_detail
+
+
+class NotAuthenticated(APIException):
+ status_code = status.HTTP_401_UNAUTHORIZED
+ default_detail = 'Authentication credentials were not provided.'
+
+ def __init__(self, detail=None):
+ self.detail = detail or self.default_detail
+
+
+class PermissionDenied(APIException):
+ status_code = status.HTTP_403_FORBIDDEN
+ default_detail = 'You do not have permission to perform this action.'
+
+ def __init__(self, detail=None):
+ self.detail = detail or self.default_detail
+
+
+class MethodNotAllowed(APIException):
+ status_code = status.HTTP_405_METHOD_NOT_ALLOWED
+ default_detail = "Method '%s' not allowed."
+
+ def __init__(self, method, detail=None):
+ self.detail = (detail or self.default_detail) % method
+
+
+class NotAcceptable(APIException):
+ status_code = status.HTTP_406_NOT_ACCEPTABLE
+ default_detail = "Could not satisfy the request's Accept header"
+
+ def __init__(self, detail=None, available_renderers=None):
+ self.detail = detail or self.default_detail
+ self.available_renderers = available_renderers
+
+
+class UnsupportedMediaType(APIException):
+ status_code = status.HTTP_415_UNSUPPORTED_MEDIA_TYPE
+ default_detail = "Unsupported media type '%s' in request."
+
+ def __init__(self, media_type, detail=None):
+ self.detail = (detail or self.default_detail) % media_type
+
+
+class Throttled(APIException):
+ status_code = status.HTTP_429_TOO_MANY_REQUESTS
+ default_detail = "Request was throttled."
+ extra_detail = "Expected available in %d second%s."
+
+ def __init__(self, wait=None, detail=None):
+ import math
+ self.wait = wait and math.ceil(wait) or None
+ if wait is not None:
+ format = detail or self.default_detail + self.extra_detail
+ self.detail = format % (self.wait, self.wait != 1 and 's' or '')
+ else:
+ self.detail = detail or self.default_detail
+
+ |
+ 
+ 
+