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from typing import Any, Optional
from moto.utilities.utils import filter_resources, get_partition
from ..utils import describe_tag_filter, random_managed_prefix_list_id
from .core import TaggedEC2Resource
class ManagedPrefixList(TaggedEC2Resource):
def __init__(
self,
backend: Any,
region: str,
address_family: Optional[str] = None,
entry: Optional[list[dict[str, str]]] = None,
max_entries: Optional[str] = None,
prefix_list_name: Optional[str] = None,
tags: Optional[dict[str, str]] = None,
owner_id: Optional[str] = None,
):
self.ec2_backend = backend
self.address_family = address_family
self.max_entries = max_entries
self.id = random_managed_prefix_list_id()
self.prefix_list_name = prefix_list_name
self.state = "create-complete"
self.state_message = None
self.add_tags(tags or {})
self.version: Optional[int] = 1
self.entries = {self.version: entry} if entry else {}
self.resource_owner_id = owner_id if owner_id else None
self.prefix_list_arn = self.arn(region, self.owner_id)
self.delete_counter = 1
def arn(self, region: str, owner_id: str) -> str:
return (
f"arn:{get_partition(region)}:ec2:{region}:{owner_id}:prefix-list/{self.id}"
)
@property
def owner_id(self) -> str:
return self.resource_owner_id or self.ec2_backend.account_id
@property
def prefix_list_id(self) -> str:
return self.id
class ManagedPrefixListBackend:
def __init__(self) -> None:
self.managed_prefix_lists: dict[str, ManagedPrefixList] = {}
self.create_default_pls()
def create_managed_prefix_list(
self,
address_family: Optional[str] = None,
entry: Optional[list[dict[str, str]]] = None,
max_entries: Optional[str] = None,
prefix_list_name: Optional[str] = None,
tags: Optional[dict[str, str]] = None,
owner_id: Optional[str] = None,
) -> ManagedPrefixList:
managed_prefix_list = ManagedPrefixList(
self,
address_family=address_family,
entry=entry,
max_entries=max_entries,
prefix_list_name=prefix_list_name,
region=self.region_name, # type: ignore[attr-defined]
tags=tags,
owner_id=owner_id,
)
self.managed_prefix_lists[managed_prefix_list.id] = managed_prefix_list
return managed_prefix_list
def describe_managed_prefix_lists(
self, prefix_list_ids: Optional[list[str]] = None, filters: Any = None
) -> list[ManagedPrefixList]:
managed_prefix_lists = list(self.managed_prefix_lists.values())
attr_pairs = (
("owner-id", "owner_id"),
("prefix-list-id", "id"),
("prefix-list-name", "prefix_list_name"),
)
if prefix_list_ids:
managed_prefix_lists = [
managed_prefix_list
for managed_prefix_list in managed_prefix_lists
if managed_prefix_list.id in prefix_list_ids
]
result = managed_prefix_lists
if filters:
result = filter_resources(result, filters, attr_pairs)
result = describe_tag_filter(filters, result)
for item in result.copy():
if not item.delete_counter:
self.managed_prefix_lists.pop(item.id, None)
result.remove(item)
if item.state == "delete-complete":
item.delete_counter -= 1
return result
def get_managed_prefix_list_entries(
self, prefix_list_id: str
) -> Optional[ManagedPrefixList]:
return self.managed_prefix_lists.get(prefix_list_id)
def delete_managed_prefix_list(self, prefix_list_id: str) -> ManagedPrefixList:
managed_prefix_list: ManagedPrefixList = self.managed_prefix_lists.get(
prefix_list_id
) # type: ignore
managed_prefix_list.state = "delete-complete"
return managed_prefix_list
def modify_managed_prefix_list(
self,
add_entry: list[dict[str, str]],
remove_entry: list[dict[str, str]],
prefix_list_id: Optional[str] = None,
current_version: Optional[str] = None,
prefix_list_name: Optional[str] = None,
) -> ManagedPrefixList:
managed_pl: ManagedPrefixList = self.managed_prefix_lists.get(prefix_list_id) # type: ignore
managed_pl.prefix_list_name = prefix_list_name
if remove_entry or add_entry:
latest_version = managed_pl.entries.get(managed_pl.version) # type: ignore[arg-type]
entries = (
managed_pl.entries.get(current_version, latest_version).copy() # type: ignore
if managed_pl.entries
else []
)
for item in entries.copy():
if item.get("Cidr", "") in [entry["Cidr"] for entry in remove_entry]:
entries.remove(item)
for item in add_entry:
if item not in entries.copy():
entries.append(item)
managed_pl.version += 1 # type: ignore[operator]
managed_pl.entries[managed_pl.version] = entries
managed_pl.state = "modify-complete"
return managed_pl
def _create_aws_managed_prefix_list(
self, name: str, address_family: str, entries: list[dict[str, str]]
) -> None:
managed_prefix_list = self.create_managed_prefix_list(
address_family=address_family,
entry=entries,
prefix_list_name=name,
owner_id="AWS",
)
managed_prefix_list.version = None
managed_prefix_list.max_entries = None
self.managed_prefix_lists[managed_prefix_list.id] = managed_prefix_list
def create_default_pls(self) -> None:
# See https://docs.aws.amazon.com/vpc/latest/userguide/working-with-aws-managed-prefix-lists.html
# S3
self._create_aws_managed_prefix_list(
name=f"com.amazonaws.{self.region_name}.s3", # type: ignore[attr-defined]
address_family="IPv4",
entries=[
{"Cidr": "52.216.0.0/15", "Description": "default"},
{"Cidr": "3.5.0.0/19", "Description": "default"},
{"Cidr": "54.231.0.0/16", "Description": "default"},
],
)
# DynamoDB
self._create_aws_managed_prefix_list(
name=f"com.amazonaws.{self.region_name}.dynamodb", # type: ignore[attr-defined]
address_family="IPv4",
entries=[
{"Cidr": "3.218.182.0/24", "Description": "default"},
{"Cidr": "3.218.180.0/23", "Description": "default"},
{"Cidr": "52.94.0.0/22", "Description": "default"},
{"Cidr": "52.119.224.0/20", "Description": "default"},
],
)
# CloudFront
self._create_aws_managed_prefix_list(
name="com.amazonaws.global.cloudfront.origin-facing",
address_family="IPv4",
entries=[
{"Cidr": "13.124.199.0/24", "Description": "default"},
{"Cidr": "130.176.0.0/18", "Description": "default"},
{"Cidr": "15.158.0.0/16", "Description": "default"},
{"Cidr": "18.68.0.0/16", "Description": "default"},
{"Cidr": "204.246.166.0/24", "Description": "default"},
{"Cidr": "205.251.218.0/24", "Description": "default"},
{"Cidr": "3.172.0.0/18", "Description": "default"},
{"Cidr": "54.239.208.0/21", "Description": "default"},
{"Cidr": "64.252.64.0/18", "Description": "default"},
{"Cidr": "70.132.0.0/18", "Description": "default"},
],
)
# Ground Station
self._create_aws_managed_prefix_list(
name="com.amazonaws.global.groundstation",
address_family="IPv4",
entries=[{"Cidr": "3.2.16.0/20", "Description": "default"}],
)
# VPC Lattice
self._create_aws_managed_prefix_list(
name=f"com.amazonaws.{self.region_name}.vpc-lattice", # type: ignore[attr-defined]
address_family="IPv4",
entries=[{"Cidr": "169.254.171.0/24", "Description": "default"}],
)
# VPC Lattice ipv6
self._create_aws_managed_prefix_list(
name=f"com.amazonaws.{self.region_name}.ipv6.vpc-lattice", # type: ignore[attr-defined]
address_family="IPv6",
entries=[{"Cidr": "fd00:ec2:80::/64", "Description": "default"}],
)
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