permissions.py 文件源码

def has_permission(self, request, view):
        """
        If settings.REGISTRATION_MODE does not exist, such as during a test, return True
        Return `True` if permission is granted, `False` otherwise.
        """
        try:
            if settings.REGISTRATION_MODE == 'disabled':
                raise exceptions.PermissionDenied('Registration is disabled')
            if settings.REGISTRATION_MODE == 'enabled':
                return True
            elif settings.REGISTRATION_MODE == 'admin_only':
                return request.user.is_superuser
            else:
                raise Exception("{} is not a valid registation mode"
                                .format(settings.REGISTRATION_MODE))
        except AttributeError:
            return True