Raises HTTPErrors based on error statuses sent from validator.
        Checks for common statuses and runs route specific error traps.

def _check_status_errors(proto, content, error_traps=None):
        """Raises HTTPErrors based on error statuses sent from validator.
        Checks for common statuses and runs route specific error traps.
        """
        if content.status == proto.OK:
            return

        try:
            if content.status == proto.INTERNAL_ERROR:
                raise errors.UnknownValidatorError()
        except AttributeError:
            # Not every protobuf has every status enum, so pass AttributeErrors
            pass

        try:
            if content.status == proto.NOT_READY:
                raise errors.ValidatorNotReady()
        except AttributeError:
            pass

        try:
            if content.status == proto.NO_ROOT:
                raise errors.HeadNotFound()
        except AttributeError:
            pass

        try:
            if content.status == proto.INVALID_PAGING:
                raise errors.PagingInvalid()
        except AttributeError:
            pass

        try:
            if content.status == proto.INVALID_SORT:
                raise errors.SortInvalid()
        except AttributeError:
            pass

        # Check custom error traps from the particular route message
        if error_traps is not None:
            for trap in error_traps:
                trap.check(content.status)