views.py 文件源码

def list_subnets(request):
    """
    List subnets of a cloud
    Currently supports the EC2, GCE and OpenStack clouds.
    For other providers this returns an empty list.
    READ permission required on cloud.
    ---
    cloud:
      in: path
      required: true
      type: string
    network_id:
      in: path
      required: true
      description: The DB ID of the network whose subnets will be returned
      type: string
    """

    cloud_id = request.matchdict['cloud']
    network_id = request.matchdict['network']
    auth_context = auth_context_from_request(request)
    auth_context.check_perm("cloud", "read", cloud_id)

    try:
        cloud = Cloud.objects.get(owner=auth_context.owner, id=cloud_id)
    except Cloud.DoesNotExist:
        raise CloudNotFoundError

    try:
        network = Network.objects.get(cloud=cloud, id=network_id)
    except Network.DoesNotExist:
        raise NetworkNotFoundError

    subnets = methods.list_subnets(cloud, network=network)

    return subnets