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80 lines
2.5 KiB
Python
80 lines
2.5 KiB
Python
"""
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Handled exceptions raised by REST framework.
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In addition Django's built in 403 and 404 exceptions are handled.
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(`django.http.Http404` and `django.core.exceptions.PermissionDenied`)
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"""
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from djangorestframework import status
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class APIException(Exception):
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"""
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Base class for REST framework exceptions.
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Subclasses should provide `.status_code` and `.detail` properties.
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"""
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pass
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class ParseError(APIException):
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status_code = status.HTTP_400_BAD_REQUEST
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default_detail = 'Malformed request.'
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def __init__(self, detail=None):
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self.detail = detail or self.default_detail
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class PermissionDenied(APIException):
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status_code = status.HTTP_403_FORBIDDEN
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default_detail = 'You do not have permission to perform this action.'
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def __init__(self, detail=None):
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self.detail = detail or self.default_detail
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class InvalidFormat(APIException):
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status_code = status.HTTP_404_NOT_FOUND
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default_detail = "Format suffix '.%s' not found."
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def __init__(self, format, detail=None):
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self.detail = (detail or self.default_detail) % format
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class MethodNotAllowed(APIException):
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status_code = status.HTTP_405_METHOD_NOT_ALLOWED
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default_detail = "Method '%s' not allowed."
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def __init__(self, method, detail=None):
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self.detail = (detail or self.default_detail) % method
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class NotAcceptable(APIException):
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status_code = status.HTTP_406_NOT_ACCEPTABLE
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default_detail = "Could not satisfy the request's Accept header"
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def __init__(self, detail=None, available_renderers=None):
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self.detail = detail or self.default_detail
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self.available_renderers = available_renderers
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class UnsupportedMediaType(APIException):
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status_code = status.HTTP_415_UNSUPPORTED_MEDIA_TYPE
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default_detail = "Unsupported media type '%s' in request."
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def __init__(self, media_type, detail=None):
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self.detail = (detail or self.default_detail) % media_type
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class Throttled(APIException):
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status_code = status.HTTP_429_TOO_MANY_REQUESTS
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default_detail = "Request was throttled."
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extra_detail = "Expected available in %d second%s."
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def __init__(self, wait=None, detail=None):
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import math
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self.wait = wait and math.ceil(wait) or None
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if wait is not None:
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format = detail or self.default_detail + self.extra_detail
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self.detail = format % (self.wait, self.wait != 1 and 's' or '')
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else:
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self.detail = detail or self.default_detail
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