Synnefo

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"""Common API faults."""

def camel_case(s):

    return s[0].lower() + s[1:]

class Fault(Exception):

    def __init__(self, message='', details='', name='', code=500):

        self.message = message

        self.details = details

        if not hasattr(self, 'code'):

            self.code = code

        self.name = name or camel_case(self.__class__.__name__)

        Exception.__init__(self, message, details, self.name, self.code)

# 2xx

class NotModified(Fault):

    code = 304

# 4xx

class BadRequest(Fault):

    code = 400

class Unauthorized(Fault):

    code = 401

class Forbidden(Fault):

    code = 403

class ResizeNotAllowed(Forbidden):

    pass

class NotAllowed(Fault):

    code = 405

    def __init__(self, message='', details='', name='', code=500,

                 allowed_methods=None):

        """

        :param allowed_methods: (list) the valid methods

        """

        super(NotAllowed, self).__init__(message, details, name, code)

        self.allowed_methods = allowed_methods or []

class ItemNotFound(Fault):

    code = 404

class Conflict(Fault):

    code = 409

class BuildInProgress(Conflict):

    pass

class LengthRequired(Fault):

    code = 411

class PreconditionFailed(Fault):

    code = 412

class RequestEntityTooLarge(Fault):

    code = 413

class OverLimit(RequestEntityTooLarge):

    pass

class BadMediaType(Fault):

    code = 415

class RangeNotSatisfiable(Fault):

    code = 416

class NetworkInUse(Fault):

    code = 421

class UnprocessableEntity(Fault):

    code = 422

# 5xx

class InternalServerError(Fault):

    code = 500

class NotImplemented(Fault):

    code = 501

class ServiceUnavailable(Fault):

    code = 503