feat(identity-trust): add governed DSAR coverage

This commit is contained in:
2026-08-21 12:15:56 +02:00
parent b9a158c2cb
commit 8d1ca493bb
3 changed files with 820 additions and 0 deletions
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from __future__ import annotations
import json
import unittest
from datetime import UTC, datetime
from sqlalchemy import create_engine
from sqlalchemy.orm import Session
from govoplan_core.core.dsar import DsarProvider, DsarSubjectRef
from govoplan_core.db.base import Base
from govoplan_core.privacy.dsar_workflow import (
create_data_subject_request,
search_data_subject_request,
)
from govoplan_identity_trust.backend.db.models import (
AssuranceEvidence,
DevicePublicKey,
KeyAccessDecisionRecord,
TrustKeyEpoch,
)
from govoplan_identity_trust.backend.dsar_provider import (
IDENTITY_TRUST_DSAR_CAPABILITY,
IdentityTrustDsarProvider,
)
from govoplan_identity_trust.backend.manifest import manifest
NOW = datetime(2026, 8, 21, 12, 0, tzinfo=UTC)
class _Registry:
def __init__(self, provider: IdentityTrustDsarProvider) -> None:
self.provider = provider
def capability_names(self):
return (IDENTITY_TRUST_DSAR_CAPABILITY,)
def capability_owner(self, name):
if name != IDENTITY_TRUST_DSAR_CAPABILITY:
raise KeyError(name)
return "identity_trust"
def tenant_entitlement_resolver(self):
class _Resolver:
@staticmethod
def resolve(session, tenant_id):
del session, tenant_id
return type(
"State", (), {"effective_modules": ("identity_trust",)}
)()
return _Resolver()
def require_tenant_capability(self, name, session, **kwargs):
del session, kwargs
if name != IDENTITY_TRUST_DSAR_CAPABILITY:
raise KeyError(name)
return self.provider
def manifests(self):
return (type("Manifest", (), {"id": "identity_trust"})(),)
class IdentityTrustDsarProviderTests(unittest.TestCase):
def setUp(self) -> None:
self.engine = create_engine("sqlite+pysqlite:///:memory:")
Base.metadata.create_all(self.engine)
self.session = Session(self.engine)
self.provider = IdentityTrustDsarProvider()
self.assertIsInstance(self.provider, DsarProvider)
self._seed()
self.session.commit()
def tearDown(self) -> None:
self.session.close()
self.engine.dispose()
def _seed(self) -> None:
self.session.add_all(
(
DevicePublicKey(
id="device-key-row-1",
tenant_id="tenant-1",
identity_id="identity-1",
account_id="account-1",
device_id="device-1",
key_id="key-1",
algorithm="EdDSA",
public_jwk={
"kty": "OKP",
"crv": "Ed25519",
"x": "public-coordinate",
"d": "private-jwk-do-not-export",
"unknown": "arbitrary-jwk-do-not-export",
},
purpose="postbox",
assurance_level="substantial",
attestation_ref="evidence:attestation-1",
status="active",
epoch=1,
registration_digest="registration-digest-do-not-export",
idempotency_key="device-idempotency-do-not-export",
registered_at=NOW,
created_by="account-1",
updated_by="account-1",
),
DevicePublicKey(
id="device-key-other-tenant",
tenant_id="tenant-2",
identity_id="identity-1",
account_id="account-1",
device_id="device-other-tenant",
key_id="key-other-tenant",
algorithm="EdDSA",
public_jwk={"kty": "OKP", "x": "other-tenant-public"},
purpose="postbox",
assurance_level="substantial",
status="active",
epoch=1,
registration_digest="other-digest",
idempotency_key="other-key",
registered_at=NOW,
),
)
)
self.session.add(
AssuranceEvidence(
id="assurance-1",
tenant_id="tenant-1",
account_id="account-1",
device_key_id="key-1",
evidence_ref="assurance:evidence-1",
assurance_level="substantial",
provider_id="bund-id",
verified_at=NOW,
expires_at=NOW,
provenance={"secret": "assurance-provenance-do-not-export"},
recorded_by="security-officer",
)
)
self.session.add(
TrustKeyEpoch(
id="epoch-1",
tenant_id="tenant-1",
subject_kind="account",
subject_id="account-1",
epoch=2,
previous_epoch=1,
state="active",
history_policy="forward_only",
reason="Device rotation",
access_decision_ref="access:decision-1",
idempotency_key="epoch-idempotency-do-not-export",
request_digest="epoch-request-digest-do-not-export",
effective_at=NOW,
created_by="security-officer",
)
)
self.session.add(
KeyAccessDecisionRecord(
id="access-decision-1",
tenant_id="tenant-1",
decision_ref="trust-decision-1",
request_digest="access-request-digest-do-not-export",
account_id="account-1",
device_key_id="key-1",
subject_kind="postbox",
subject_id="postbox-1",
key_epoch=2,
access_decision_ref="access:authorization-1",
purpose="read-message",
allowed=True,
reason="Current device and epoch",
resource_ref="postbox:message-1",
provenance={"secret": "access-provenance-do-not-export"},
)
)
@staticmethod
def _subject() -> DsarSubjectRef:
return DsarSubjectRef(account_id="account-1", identity_id="identity-1")
def test_search_exports_bounded_trust_records(self) -> None:
records = self.provider.search_subject(
self.session, tenant_id="tenant-1", subject=self._subject()
)
self.assertEqual(
{
"device_public_key",
"assurance_evidence",
"key_epoch",
"key_access_decision",
},
{record.resource_type for record in records},
)
exported = json.dumps([record.to_dict() for record in records])
self.assertIn("public-coordinate", exported)
self.assertIn("assurance:evidence-1", exported)
self.assertIn("postbox:message-1", exported)
for excluded in (
"private-jwk-do-not-export",
"arbitrary-jwk-do-not-export",
"registration-digest-do-not-export",
"device-idempotency-do-not-export",
"assurance-provenance-do-not-export",
"epoch-request-digest-do-not-export",
"access-request-digest-do-not-export",
"access-provenance-do-not-export",
"other-tenant-public",
):
self.assertNotIn(excluded, exported)
def test_key_narrowing_and_conflicts_fail_closed(self) -> None:
narrowed = self.provider.search_subject(
self.session,
tenant_id="tenant-1",
subject=DsarSubjectRef(
account_id="account-1",
external_references={"identity_trust.key": "key-1"},
),
)
conflict = self.provider.search_subject(
self.session,
tenant_id="tenant-1",
subject=DsarSubjectRef(
account_id="account-1",
external_references={"identity_trust.account": "account-other"},
),
)
reference_only = self.provider.search_subject(
self.session,
tenant_id="tenant-1",
subject=DsarSubjectRef(
external_references={"identity_trust.key": "key-1"}
),
)
self.assertEqual(
{"device_public_key", "assurance_evidence", "key_access_decision"},
{record.resource_type for record in narrowed},
)
self.assertEqual((), conflict)
self.assertEqual((), reference_only)
def test_erasure_is_review_or_retain_only(self) -> None:
records = self.provider.search_subject(
self.session, tenant_id="tenant-1", subject=self._subject()
)
actions = self.provider.plan_erasure(
self.session,
tenant_id="tenant-1",
subject=self._subject(),
records=records,
)
self.assertEqual(
{"manual_review", "retain"}, {action.kind for action in actions}
)
results = self.provider.execute_erasure(
self.session,
tenant_id="tenant-1",
subject=self._subject(),
actions=actions,
request_id="dsar-trust-1",
)
self.assertTrue(all(result.status == "blocked" for result in results))
self.assertEqual(
"active",
self.session.get(DevicePublicKey, "device-key-row-1").status,
)
def test_manifest_and_core_workflow_discover_provider(self) -> None:
self.assertIn(
IDENTITY_TRUST_DSAR_CAPABILITY, manifest.capability_factories
)
row = create_data_subject_request(
self.session,
tenant_id="tenant-1",
reference="DSAR-TRUST-1",
request_kind="access",
subject=self._subject(),
purpose="Trust access request",
legal_basis=None,
due_at=None,
requested_by_account_id="operator-1",
)
search_data_subject_request(
self.session,
registry=_Registry(self.provider),
row=row,
expected_revision=row.resource_revision,
)
self.assertEqual("searched", row.status)
self.assertEqual(4, row.search_result["record_count"])
if __name__ == "__main__":
unittest.main()