django-rest-framework/djangorestframework/exceptions.py
2012-09-01 20:26:27 +01:00

57 lines
1.7 KiB
Python

"""
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 djangorestframework 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 PermissionDenied(APIException):
status_code = status.HTTP_403_FORBIDDEN
default_detail = 'You do not have permission to access this resource.'
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 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. Expected available in %d seconds."
def __init__(self, wait, detail=None):
import math
self.detail = (detail or self.default_detail) % int(math.ceil(wait))