Move NPM configuration and client behind plugin boundary
This commit is contained in:
Lyncoln
@@ -0,0 +1,885 @@
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import os
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from typing import Any
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from ....adapters import (
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CERTIFICATES,
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PROXY_HOSTS,
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ApplyResult,
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Capability,
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CapabilityOperation,
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DiscoveredObject,
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NormalizedObject,
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ObjectReference,
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PlanAction,
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PlanOperation,
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RetireRequest,
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)
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from ....adapter_support import (
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require_action_endpoint,
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require_desired,
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require_endpoint_plugin,
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)
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from ....certificates.material import CertificateMaterial
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from ....config import parse_endpoint_list
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from ....normalizer import normalize_ipv4
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from .client import NpmClient
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from ....object_normalizer import normalize_discovered_object
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def configured_endpoints(config):
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try:
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port = int(os.getenv("PROXY_API_PORT", "81"))
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except ValueError as exc:
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raise RuntimeError(
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"PROXY_API_PORT must be an integer"
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) from exc
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if not 1 <= port <= 65535:
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raise RuntimeError(
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"PROXY_API_PORT must be between 1 and 65535"
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)
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raw_endpoints = os.getenv("NPM_ENDPOINTS")
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if raw_endpoints is None:
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raw_proxy_ip = os.getenv("PROXY_IP")
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if not raw_proxy_ip:
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raise RuntimeError(
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"NPM_ENDPOINTS or legacy PROXY_IP is required"
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)
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raw_endpoints = normalize_ipv4(
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raw_proxy_ip,
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"PROXY_IP",
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)
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return parse_endpoint_list(
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"npm",
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raw_endpoints,
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port,
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)
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_PROXY_HOST_FIELDS = (
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"domain_names",
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"forward_scheme",
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"forward_host",
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"forward_port",
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"certificate_id",
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"ssl_forced",
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"caching_enabled",
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"block_exploits",
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"allow_websocket_upgrade",
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"http2_support",
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"hsts_enabled",
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"hsts_subdomains",
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"enabled",
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)
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class Plugin:
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name = "npm"
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capabilities = frozenset(
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{
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Capability(
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PROXY_HOSTS,
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CapabilityOperation.DISCOVER,
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),
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Capability(
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PROXY_HOSTS,
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CapabilityOperation.APPLY,
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),
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Capability(
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PROXY_HOSTS,
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CapabilityOperation.VERIFY,
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),
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Capability(
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CERTIFICATES,
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CapabilityOperation.DISCOVER,
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),
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Capability(
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CERTIFICATES,
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CapabilityOperation.APPLY,
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),
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Capability(
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CERTIFICATES,
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CapabilityOperation.VERIFY,
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),
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}
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)
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def __init__(self, config, endpoint):
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require_endpoint_plugin(endpoint, self.name)
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self.endpoints = configured_endpoints(config)
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self.endpoint = endpoint
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self.client = NpmClient(endpoint)
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@staticmethod
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def _local_key(row: dict[str, Any], label: str) -> str:
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local_id = row.get("id")
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if isinstance(local_id, bool) or not isinstance(local_id, int):
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raise RuntimeError(
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f"NPM {label} has invalid id: {local_id!r}"
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)
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return str(local_id)
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def connect(self) -> None:
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self.client.login()
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def discover(
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self,
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object_type: str,
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) -> list[DiscoveredObject]:
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if object_type == PROXY_HOSTS:
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return self._discover_proxy_hosts()
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if object_type == CERTIFICATES:
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return self._discover_certificates()
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raise RuntimeError(
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f"{self.endpoint.identity} cannot discover "
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f"object type {object_type!r}"
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)
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def _proxy_host_from_row(
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self,
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row: dict[str, Any],
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) -> DiscoveredObject:
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payload = {
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field: row.get(field)
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for field in _PROXY_HOST_FIELDS
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}
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certificate_id = row.get("certificate_id")
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if certificate_id in (None, "", 0, "0"):
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references = ()
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else:
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if isinstance(certificate_id, bool):
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raise RuntimeError(
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"NPM proxy host has invalid certificate_id"
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)
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certificate_local_key = str(
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certificate_id
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).strip()
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if not certificate_local_key:
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raise RuntimeError(
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"NPM proxy host has invalid certificate_id"
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)
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references = (
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ObjectReference(
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relation="certificate",
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object_type=CERTIFICATES,
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local_key=certificate_local_key,
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),
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)
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return DiscoveredObject(
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object_type=PROXY_HOSTS,
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local_key=self._local_key(
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row,
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"proxy host",
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),
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payload=payload,
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references=references,
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)
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def _certificate_from_row(
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self,
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row: dict[str, Any],
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) -> DiscoveredObject:
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meta = row.get("meta")
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if not isinstance(meta, dict):
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meta = {}
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return DiscoveredObject(
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object_type=CERTIFICATES,
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local_key=self._local_key(
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row,
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"certificate",
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),
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payload={
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"domain_names": list(
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row.get("domain_names") or []
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),
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"provider": str(
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row.get("provider") or ""
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),
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"nice_name": str(
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row.get("nice_name") or ""
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),
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"valid_from": row.get("valid_from"),
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"expires_on": row.get("expires_on"),
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"cluster_managed": (
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meta.get("cluster_managed") is True
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),
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"acme_renew": (
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meta.get("acme_renew") is True
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),
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"dns_challenge": (
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meta.get("dns_challenge") is True
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),
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},
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)
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def _discover_proxy_hosts(self) -> list[DiscoveredObject]:
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return [
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self._proxy_host_from_row(row)
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for row in self.client.proxy_hosts()
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]
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def _discover_certificates(self) -> list[DiscoveredObject]:
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return [
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self._certificate_from_row(row)
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for row in self.client.certificates()
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]
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@staticmethod
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def _portable_certificate_matches(
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actual: NormalizedObject,
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desired: NormalizedObject,
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) -> bool:
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if actual.object_type != CERTIFICATES:
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return False
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if desired.object_type != CERTIFICATES:
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return False
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if actual.logical_key != desired.logical_key:
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return False
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for field in (
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"domain_names",
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"valid_from",
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"expires_on",
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):
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if (
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actual.payload.get(field)
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!= desired.payload.get(field)
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):
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return False
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return True
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def _certificate_material_source(
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self,
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desired: NormalizedObject,
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) -> CertificateMaterial:
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if desired.object_type != CERTIFICATES:
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raise RuntimeError(
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"Certificate material source requires "
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"a certificate object"
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)
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matches: list[
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tuple[str, str, CertificateMaterial]
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] = []
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source_errors: list[str] = []
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for endpoint in sorted(
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self.endpoints,
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key=lambda item: item.identity,
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):
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if endpoint.identity == self.endpoint.identity:
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continue
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client = NpmClient(endpoint)
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try:
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rows = client.certificates()
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except Exception as exc:
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source_errors.append(
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f"{endpoint.identity}: "
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f"{type(exc).__name__}"
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)
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continue
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for row in rows:
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candidate = normalize_discovered_object(
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self._certificate_from_row(row)
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)
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if not self._portable_certificate_matches(
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candidate,
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desired,
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):
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continue
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if candidate.local_key is None:
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raise RuntimeError(
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"Matching NPM certificate has no "
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"endpoint-local key"
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)
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material = client.certificate_material(
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candidate.local_key
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)
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matches.append(
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(
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endpoint.identity,
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candidate.local_key,
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material,
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)
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)
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if not matches:
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detail = ""
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if source_errors:
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detail = (
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"; unavailable sources: "
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+ ", ".join(source_errors)
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)
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raise RuntimeError(
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"No NPM source certificate material found for "
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f"{desired.logical_key!r}"
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f"{detail}"
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)
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baseline = matches[0][2]
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for _, _, material in matches[1:]:
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if material != baseline:
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endpoints = ", ".join(
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sorted(
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{
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endpoint_id
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for (
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endpoint_id,
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_,
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_,
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) in matches
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}
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)
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)
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raise RuntimeError(
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"Conflicting NPM certificate material "
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f"sources for {desired.logical_key!r}: "
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f"{endpoints}"
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)
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return baseline
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@staticmethod
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def _proxy_host_matches(
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actual: NormalizedObject,
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desired: NormalizedObject,
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*,
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local_key: str | None = None,
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) -> bool:
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if actual.object_type != PROXY_HOSTS:
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return False
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if desired.object_type != PROXY_HOSTS:
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return False
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if local_key is not None and actual.local_key != local_key:
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return False
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if actual.logical_key != desired.logical_key:
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return False
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if actual.payload != desired.payload:
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return False
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if actual.references != desired.references:
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return False
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return True
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@staticmethod
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def _proxy_host_certificate_id(
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desired: NormalizedObject,
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) -> int:
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certificate_references = []
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for reference in desired.references:
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if (
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reference.relation != "certificate"
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or reference.object_type != CERTIFICATES
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):
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raise RuntimeError(
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"NPM proxy host has unsupported object reference"
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)
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certificate_references.append(reference)
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if not certificate_references:
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return 0
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if len(certificate_references) != 1:
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raise RuntimeError(
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"NPM proxy host requires at most one "
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"certificate reference"
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)
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reference = certificate_references[0]
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if reference.local_key is None:
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raise RuntimeError(
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"NPM proxy host certificate reference "
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"was not resolved to an endpoint-local key"
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)
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try:
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certificate_id = int(reference.local_key)
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except (TypeError, ValueError) as exc:
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raise RuntimeError(
|
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"NPM proxy host certificate reference "
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"has invalid endpoint-local key"
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) from exc
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if certificate_id < 1:
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raise RuntimeError(
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"NPM proxy host certificate reference "
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"has invalid endpoint-local key"
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)
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return certificate_id
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def _proxy_host_api_payload(
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self,
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desired: NormalizedObject,
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) -> dict[str, Any]:
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if desired.object_type != PROXY_HOSTS:
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raise RuntimeError(
|
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"Proxy-host API payload requires proxy-host state"
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)
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payload = desired.payload
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domains = payload.get("domain_names")
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if (
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not isinstance(domains, list)
|
||||
or not domains
|
||||
or not all(
|
||||
isinstance(value, str) and value
|
||||
for value in domains
|
||||
)
|
||||
):
|
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raise RuntimeError(
|
||||
"NPM proxy host requires domain_names"
|
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)
|
||||
|
||||
forward_scheme = payload.get("forward_scheme")
|
||||
if (
|
||||
not isinstance(forward_scheme, str)
|
||||
or not forward_scheme
|
||||
):
|
||||
raise RuntimeError(
|
||||
"NPM proxy host requires forward_scheme"
|
||||
)
|
||||
|
||||
forward_host = payload.get("forward_host")
|
||||
if (
|
||||
not isinstance(forward_host, str)
|
||||
or not forward_host
|
||||
):
|
||||
raise RuntimeError(
|
||||
"NPM proxy host requires forward_host"
|
||||
)
|
||||
|
||||
forward_port = payload.get("forward_port")
|
||||
if (
|
||||
isinstance(forward_port, bool)
|
||||
or not isinstance(forward_port, int)
|
||||
or forward_port < 1
|
||||
or forward_port > 65535
|
||||
):
|
||||
raise RuntimeError(
|
||||
"NPM proxy host requires valid forward_port"
|
||||
)
|
||||
|
||||
api_payload: dict[str, Any] = {
|
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"domain_names": list(domains),
|
||||
"forward_scheme": forward_scheme,
|
||||
"forward_host": forward_host,
|
||||
"forward_port": forward_port,
|
||||
"certificate_id": (
|
||||
self._proxy_host_certificate_id(desired)
|
||||
),
|
||||
}
|
||||
|
||||
for field in _PROXY_HOST_FIELDS:
|
||||
if field in (
|
||||
"domain_names",
|
||||
"forward_scheme",
|
||||
"forward_host",
|
||||
"forward_port",
|
||||
"certificate_id",
|
||||
):
|
||||
continue
|
||||
|
||||
if field in payload:
|
||||
api_payload[field] = payload[field]
|
||||
|
||||
return api_payload
|
||||
|
||||
def _create_proxy_host(
|
||||
self,
|
||||
desired: NormalizedObject,
|
||||
) -> ApplyResult:
|
||||
payload = self._proxy_host_api_payload(
|
||||
desired
|
||||
)
|
||||
|
||||
created = self.client.create_proxy_host(
|
||||
payload
|
||||
)
|
||||
|
||||
local_key = self._local_key(
|
||||
created,
|
||||
"proxy host",
|
||||
)
|
||||
|
||||
try:
|
||||
row = self.client.proxy_host(local_key)
|
||||
|
||||
actual = normalize_discovered_object(
|
||||
self._proxy_host_from_row(row)
|
||||
)
|
||||
|
||||
if not self._proxy_host_matches(
|
||||
actual,
|
||||
desired,
|
||||
local_key=local_key,
|
||||
):
|
||||
raise RuntimeError(
|
||||
"Created NPM proxy host does not match "
|
||||
"desired state"
|
||||
)
|
||||
|
||||
except Exception:
|
||||
try:
|
||||
self.client.delete_proxy_host(
|
||||
local_key
|
||||
)
|
||||
except Exception as rollback_error:
|
||||
raise RuntimeError(
|
||||
"NPM proxy-host creation failed and "
|
||||
"rollback also failed"
|
||||
) from rollback_error
|
||||
|
||||
raise
|
||||
|
||||
return ApplyResult(
|
||||
object=actual,
|
||||
detail="created proxy host",
|
||||
)
|
||||
|
||||
def _update_proxy_host(
|
||||
self,
|
||||
action: PlanAction,
|
||||
) -> ApplyResult:
|
||||
desired = action.desired
|
||||
current = action.current
|
||||
|
||||
if desired is None:
|
||||
raise RuntimeError(
|
||||
"NPM proxy-host update requires desired state"
|
||||
)
|
||||
|
||||
if (
|
||||
current is None
|
||||
or current.object_type != PROXY_HOSTS
|
||||
or current.local_key is None
|
||||
):
|
||||
raise RuntimeError(
|
||||
"NPM proxy-host update requires "
|
||||
"current endpoint-local state"
|
||||
)
|
||||
|
||||
if current.logical_key != desired.logical_key:
|
||||
raise RuntimeError(
|
||||
"NPM proxy-host update identity changed"
|
||||
)
|
||||
|
||||
local_key = current.local_key
|
||||
payload = self._proxy_host_api_payload(
|
||||
desired
|
||||
)
|
||||
|
||||
self.client.update_proxy_host(
|
||||
local_key,
|
||||
payload,
|
||||
)
|
||||
|
||||
row = self.client.proxy_host(local_key)
|
||||
|
||||
actual = normalize_discovered_object(
|
||||
self._proxy_host_from_row(row)
|
||||
)
|
||||
|
||||
if not self._proxy_host_matches(
|
||||
actual,
|
||||
desired,
|
||||
local_key=local_key,
|
||||
):
|
||||
raise RuntimeError(
|
||||
"Updated NPM proxy host does not match "
|
||||
"desired state"
|
||||
)
|
||||
|
||||
return ApplyResult(
|
||||
object=actual,
|
||||
detail="updated proxy host",
|
||||
)
|
||||
|
||||
def apply(
|
||||
self,
|
||||
action: PlanAction,
|
||||
) -> ApplyResult | None:
|
||||
desired = require_desired(
|
||||
action,
|
||||
context="NPM apply",
|
||||
)
|
||||
|
||||
require_action_endpoint(
|
||||
action,
|
||||
self.endpoint,
|
||||
)
|
||||
|
||||
if (
|
||||
desired.object_type == CERTIFICATES
|
||||
and action.operation == PlanOperation.CREATE
|
||||
):
|
||||
return self._create_certificate(desired)
|
||||
|
||||
if (
|
||||
desired.object_type == CERTIFICATES
|
||||
and action.operation == PlanOperation.REPLACE
|
||||
):
|
||||
return self._replace_certificate(action)
|
||||
|
||||
if (
|
||||
desired.object_type == PROXY_HOSTS
|
||||
and action.operation == PlanOperation.CREATE
|
||||
):
|
||||
return self._create_proxy_host(desired)
|
||||
|
||||
if (
|
||||
desired.object_type == PROXY_HOSTS
|
||||
and action.operation == PlanOperation.UPDATE
|
||||
):
|
||||
return self._update_proxy_host(action)
|
||||
|
||||
raise RuntimeError(
|
||||
f"{self.endpoint.identity} does not support "
|
||||
f"{action.operation} for {desired.object_type}"
|
||||
)
|
||||
|
||||
def _replace_certificate(
|
||||
self,
|
||||
action: PlanAction,
|
||||
) -> ApplyResult:
|
||||
desired = action.desired
|
||||
current = action.current
|
||||
|
||||
if desired is None or desired.object_type != CERTIFICATES:
|
||||
raise RuntimeError(
|
||||
"NPM certificate replace requires desired certificate"
|
||||
)
|
||||
|
||||
if current is None or current.object_type != CERTIFICATES:
|
||||
raise RuntimeError(
|
||||
"NPM certificate replace requires current certificate"
|
||||
)
|
||||
|
||||
if current.local_key is None:
|
||||
raise RuntimeError(
|
||||
"NPM certificate replace requires current local id"
|
||||
)
|
||||
|
||||
if current.logical_key != desired.logical_key:
|
||||
raise RuntimeError(
|
||||
"NPM certificate replace identity mismatch"
|
||||
)
|
||||
|
||||
result = self._create_certificate(desired)
|
||||
|
||||
return ApplyResult(
|
||||
object=result.object,
|
||||
detail="replaced certificate",
|
||||
retirements=(
|
||||
RetireRequest(
|
||||
object=current,
|
||||
),
|
||||
),
|
||||
)
|
||||
|
||||
def retire(
|
||||
self,
|
||||
request: RetireRequest,
|
||||
) -> None:
|
||||
retired = request.object
|
||||
|
||||
if retired.object_type != CERTIFICATES:
|
||||
raise RuntimeError(
|
||||
"NPM deferred retirement only supports certificates"
|
||||
)
|
||||
|
||||
if retired.local_key is None:
|
||||
raise RuntimeError(
|
||||
"NPM certificate retirement requires local id"
|
||||
)
|
||||
|
||||
self.client.delete_certificate(
|
||||
retired.local_key
|
||||
)
|
||||
|
||||
def _create_certificate(
|
||||
self,
|
||||
desired: NormalizedObject,
|
||||
) -> ApplyResult:
|
||||
material = self._certificate_material_source(
|
||||
desired
|
||||
)
|
||||
|
||||
domains = desired.payload.get("domain_names")
|
||||
|
||||
if (
|
||||
not isinstance(domains, list)
|
||||
or not domains
|
||||
or not all(
|
||||
isinstance(value, str) and value
|
||||
for value in domains
|
||||
)
|
||||
):
|
||||
raise RuntimeError(
|
||||
"NPM certificate create requires domain_names"
|
||||
)
|
||||
|
||||
nice_name = desired.payload.get("nice_name")
|
||||
|
||||
if not isinstance(nice_name, str):
|
||||
nice_name = ""
|
||||
|
||||
nice_name = nice_name.strip()
|
||||
|
||||
if not nice_name:
|
||||
nice_name = (
|
||||
"dns-sync: "
|
||||
+ ", ".join(domains)
|
||||
)
|
||||
|
||||
created = self.client.create_certificate(
|
||||
{
|
||||
# This node is receiving existing certificate
|
||||
# material. It must not independently perform ACME
|
||||
# issuance.
|
||||
"provider": "other",
|
||||
"domain_names": list(domains),
|
||||
"nice_name": nice_name,
|
||||
"meta": {
|
||||
"cluster_managed": True,
|
||||
"acme_renew": False,
|
||||
"dns_challenge": False,
|
||||
},
|
||||
}
|
||||
)
|
||||
|
||||
created_id = created.get("id")
|
||||
|
||||
if (
|
||||
isinstance(created_id, bool)
|
||||
or not isinstance(created_id, int)
|
||||
or created_id < 1
|
||||
):
|
||||
raise RuntimeError(
|
||||
"NPM certificate create returned invalid id"
|
||||
)
|
||||
|
||||
local_key = str(created_id)
|
||||
|
||||
try:
|
||||
self.client.upload_certificate(
|
||||
local_key,
|
||||
certificate=material.certificate,
|
||||
certificate_key=material.certificate_key,
|
||||
intermediate_certificate=(
|
||||
material.intermediate_certificate
|
||||
),
|
||||
)
|
||||
|
||||
row = self.client.certificate(local_key)
|
||||
|
||||
actual = normalize_discovered_object(
|
||||
self._certificate_from_row(row)
|
||||
)
|
||||
|
||||
if actual.local_key != local_key:
|
||||
raise RuntimeError(
|
||||
"Created NPM certificate returned "
|
||||
"unexpected local id"
|
||||
)
|
||||
|
||||
if not self._portable_certificate_matches(
|
||||
actual,
|
||||
desired,
|
||||
):
|
||||
raise RuntimeError(
|
||||
"Created NPM certificate does not match "
|
||||
"desired portable certificate state"
|
||||
)
|
||||
|
||||
except Exception:
|
||||
try:
|
||||
self.client.delete_certificate(local_key)
|
||||
except Exception as rollback_error:
|
||||
raise RuntimeError(
|
||||
"NPM certificate creation failed and "
|
||||
"rollback also failed"
|
||||
) from rollback_error
|
||||
|
||||
raise
|
||||
|
||||
return ApplyResult(
|
||||
object=actual,
|
||||
detail="created certificate",
|
||||
)
|
||||
|
||||
def verify(self, object: NormalizedObject) -> bool:
|
||||
if object.local_key is None:
|
||||
return False
|
||||
|
||||
if object.object_type == PROXY_HOSTS:
|
||||
row = self.client.proxy_host(
|
||||
object.local_key
|
||||
)
|
||||
actual = normalize_discovered_object(
|
||||
self._proxy_host_from_row(row)
|
||||
)
|
||||
|
||||
return self._proxy_host_matches(
|
||||
actual,
|
||||
object,
|
||||
local_key=object.local_key,
|
||||
)
|
||||
|
||||
if object.object_type == CERTIFICATES:
|
||||
row = self.client.certificate(
|
||||
object.local_key
|
||||
)
|
||||
actual = normalize_discovered_object(
|
||||
self._certificate_from_row(row)
|
||||
)
|
||||
|
||||
if actual.local_key != object.local_key:
|
||||
return False
|
||||
|
||||
# Provider, display name, and renewal flags describe how
|
||||
# this NPM endpoint manages the certificate. They are not
|
||||
# portable certificate identity. A copied Let's Encrypt
|
||||
# certificate becomes provider="other" on the recipient.
|
||||
return self._portable_certificate_matches(
|
||||
actual,
|
||||
object,
|
||||
)
|
||||
|
||||
raise RuntimeError(
|
||||
f"{self.endpoint.identity} cannot verify "
|
||||
f"object type {object.object_type!r}"
|
||||
)
|
||||
Reference in New Issue
Block a user