feat(quick-access): add governed DSAR coverage
This commit is contained in:
@@ -0,0 +1,417 @@
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from __future__ import annotations
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from collections.abc import Mapping, Sequence
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from dataclasses import dataclass
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from datetime import datetime, timezone
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from sqlalchemy import or_
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from sqlalchemy.orm import Session
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from govoplan_core.core.dsar import (
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DsarErasureActionRef,
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DsarExecutionResultRef,
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DsarRecordRef,
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DsarSubjectRef,
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dsar_capability_name,
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)
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from govoplan_quick_access.backend.db.models import QuickAccessProfile
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QUICK_ACCESS_DSAR_CAPABILITY = dsar_capability_name("quick_access")
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_MAX_PREFERENCES = 1_000
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_CONFLICT = object()
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@dataclass(frozen=True, slots=True)
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class _SubjectSelectors:
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account_id: str
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profile_id: str | None
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class QuickAccessDsarProvider:
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provider_id = "quick_access"
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module_id = "quick_access"
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def search_subject(
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self,
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session: object,
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*,
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tenant_id: str,
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subject: DsarSubjectRef,
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) -> Sequence[DsarRecordRef]:
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db = _session(session)
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selectors = _subject_selectors(subject)
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if selectors is None:
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return ()
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personal_query = db.query(QuickAccessProfile).filter(
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QuickAccessProfile.scope_type == "user",
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QuickAccessProfile.tenant_id == tenant_id,
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QuickAccessProfile.scope_id == selectors.account_id,
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)
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attribution_query = db.query(QuickAccessProfile).filter(
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QuickAccessProfile.scope_type == "tenant",
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QuickAccessProfile.tenant_id == tenant_id,
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or_(
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QuickAccessProfile.created_by == selectors.account_id,
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QuickAccessProfile.updated_by == selectors.account_id,
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),
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)
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if selectors.profile_id:
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personal_query = personal_query.filter(
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QuickAccessProfile.id == selectors.profile_id
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)
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attribution_query = attribution_query.filter(
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QuickAccessProfile.id == selectors.profile_id
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)
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records = [_personal_record(row) for row in personal_query.all()]
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records.extend(
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_attribution_record(row, selectors.account_id)
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for row in attribution_query.all()
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)
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return tuple(
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sorted(records, key=lambda item: (item.resource_type, item.resource_id))
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)
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def plan_erasure(
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self,
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session: object,
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*,
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tenant_id: str,
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subject: DsarSubjectRef,
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records: Sequence[DsarRecordRef],
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) -> Sequence[DsarErasureActionRef]:
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db = _session(session)
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selectors = _subject_selectors(subject)
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if selectors is None:
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raise ValueError("Quick Access DSAR requires one corroborated account.")
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actions: list[DsarErasureActionRef] = []
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for record in records:
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_validate_record(record)
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if record.resource_type == "quick_access_tenant_attribution":
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actions.append(
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DsarErasureActionRef(
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action_id=(
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"quick_access:retain:quick_access_tenant_attribution:"
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f"{record.resource_id}"
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),
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provider_id=self.provider_id,
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module_id=self.module_id,
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kind="retain",
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resource_type=record.resource_type,
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resource_id=record.resource_id,
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title=f"Retain {record.title}",
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rationale=record.retention_reason
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or "Tenant Quick Access policy attribution is accountability evidence.",
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executable=False,
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)
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)
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continue
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profile = (
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db.query(QuickAccessProfile)
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.filter(
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QuickAccessProfile.id == record.resource_id,
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QuickAccessProfile.scope_type == "user",
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QuickAccessProfile.tenant_id == tenant_id,
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)
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.one_or_none()
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)
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if (
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profile is None
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or profile.scope_id != selectors.account_id
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or (selectors.profile_id and profile.id != selectors.profile_id)
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):
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actions.append(_manual_action(record))
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continue
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actions.append(
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DsarErasureActionRef(
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action_id=(
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"quick_access:delete:quick_access_personal_profile:"
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f"{profile.id}:r{profile.revision}"
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),
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provider_id=self.provider_id,
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module_id=self.module_id,
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kind="delete",
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resource_type="quick_access_personal_profile",
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resource_id=profile.id,
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title="Delete personal Quick Access profile",
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rationale=(
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"The profile contains only account-owned presentation "
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"preferences and can be recreated from governed defaults."
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),
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executable=True,
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irreversible=True,
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metadata={
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"account_id": profile.scope_id,
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"revision": profile.revision,
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},
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)
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)
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return tuple(actions)
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def execute_erasure(
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self,
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session: object,
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*,
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tenant_id: str,
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subject: DsarSubjectRef,
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actions: Sequence[DsarErasureActionRef],
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request_id: str,
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) -> Sequence[DsarExecutionResultRef]:
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db = _session(session)
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selectors = _subject_selectors(subject)
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if selectors is None:
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raise ValueError("Quick Access DSAR requires one corroborated account.")
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results: list[DsarExecutionResultRef] = []
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for action in actions:
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_validate_action(action)
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if not action.executable or action.kind != "delete":
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results.append(
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DsarExecutionResultRef(
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action_id=action.action_id,
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status="blocked",
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summary=(
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"Tenant Quick Access policy attribution remains "
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"institutional accountability evidence."
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),
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)
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)
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continue
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if action.resource_type != "quick_access_personal_profile":
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raise ValueError("Unsupported executable Quick Access DSAR action.")
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profile = (
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db.query(QuickAccessProfile)
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.filter(
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QuickAccessProfile.id == action.resource_id,
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QuickAccessProfile.scope_type == "user",
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QuickAccessProfile.tenant_id == tenant_id,
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)
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.one_or_none()
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)
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if profile is None:
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results.append(
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DsarExecutionResultRef(
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action_id=action.action_id,
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status="unchanged",
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summary="The personal Quick Access profile was already absent.",
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evidence={"request_id": request_id},
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)
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)
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continue
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expected_account = str(action.metadata.get("account_id") or "")
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expected_revision = action.metadata.get("revision")
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if (
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profile.scope_id != selectors.account_id
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or expected_account != selectors.account_id
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or (selectors.profile_id and profile.id != selectors.profile_id)
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):
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results.append(
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DsarExecutionResultRef(
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action_id=action.action_id,
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status="blocked",
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summary=(
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"The profile is not owned by the corroborated subject "
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"account and selector context."
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),
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)
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)
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continue
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if expected_revision != profile.revision:
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results.append(
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DsarExecutionResultRef(
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action_id=action.action_id,
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status="blocked",
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summary=(
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"The profile changed after the erasure plan; create a "
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"new plan before deleting it."
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),
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)
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)
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continue
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profile_id = profile.id
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db.delete(profile)
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db.flush()
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results.append(
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DsarExecutionResultRef(
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action_id=action.action_id,
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status="executed",
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summary=(
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"Deleted the personal Quick Access profile without "
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"changing tenant policy, tools, or domain data."
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),
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evidence={"request_id": request_id, "profile_id": profile_id},
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)
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)
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return tuple(results)
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def _subject_selectors(subject: DsarSubjectRef) -> _SubjectSelectors | None:
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references = subject.external_references
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account_id = _coalesce(
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subject.account_id,
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references.get("quick_access.account"),
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references.get("access.account"),
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)
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profile_id = _coalesce(
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references.get("quick_access.profile"),
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references.get("quick_access.profile_id"),
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)
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if _CONFLICT in (account_id, profile_id):
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return None
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normalized_account = _optional_string(account_id)
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if normalized_account is None:
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return None
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return _SubjectSelectors(
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account_id=normalized_account,
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profile_id=_optional_string(profile_id),
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)
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def _coalesce(*values: str | None) -> str | None | object:
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normalized = {str(value).strip() for value in values if str(value or "").strip()}
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if len(normalized) > 1:
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return _CONFLICT
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return next(iter(normalized), None)
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def _optional_string(value: object) -> str | None:
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return value if isinstance(value, str) and value else None
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def _personal_record(profile: QuickAccessProfile) -> DsarRecordRef:
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return DsarRecordRef(
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provider_id="quick_access",
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module_id="quick_access",
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resource_type="quick_access_personal_profile",
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resource_id=profile.id,
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category="personal_interface_preference",
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title="Personal Quick Access profile",
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data={
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"revision": profile.revision,
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"category_preferences": _preference_projection(
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profile.category_preferences
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),
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"tool_preferences": _preference_projection(profile.tool_preferences),
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},
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observed_at=_aware(profile.updated_at),
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)
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def _attribution_record(
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profile: QuickAccessProfile,
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account_id: str,
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) -> DsarRecordRef:
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activities = []
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if profile.created_by == account_id:
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activities.append("created_tenant_quick_access_policy")
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if profile.updated_by == account_id:
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activities.append("updated_tenant_quick_access_policy")
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return DsarRecordRef(
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provider_id="quick_access",
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module_id="quick_access",
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resource_type="quick_access_tenant_attribution",
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resource_id=profile.id,
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category="operator_accountability_evidence",
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title="Tenant Quick Access policy attribution",
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data={
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"activities": activities,
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"revision": profile.revision,
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"created_at": _iso(profile.created_at),
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"updated_at": _iso(profile.updated_at),
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},
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observed_at=_aware(profile.updated_at),
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immutable_evidence=True,
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retention_reason=(
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"Tenant policy authorship is retained as institutional "
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"accountability evidence; policy preferences are excluded."
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),
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)
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def _preference_projection(value: object) -> dict[str, dict[str, object]]:
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if not isinstance(value, Mapping):
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raise ValueError("Quick Access preference payload must be an object.")
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if len(value) > _MAX_PREFERENCES:
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raise ValueError(
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"Quick Access preference limit exceeded; review the stored profile."
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)
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projected: dict[str, dict[str, object]] = {}
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for raw_key, raw_entry in value.items():
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key = str(raw_key)
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if not key or len(key) > 255 or not isinstance(raw_entry, Mapping):
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raise ValueError("Quick Access preference entry is invalid.")
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entry: dict[str, object] = {}
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if isinstance(raw_entry.get("enabled"), bool):
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entry["enabled"] = raw_entry["enabled"]
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if isinstance(raw_entry.get("forced"), bool):
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entry["forced"] = raw_entry["forced"]
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order = raw_entry.get("order")
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if isinstance(order, int) and not isinstance(order, bool):
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entry["order"] = order
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projected[key] = entry
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return projected
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def _manual_action(record: DsarRecordRef) -> DsarErasureActionRef:
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return DsarErasureActionRef(
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action_id=f"quick_access:manual_review:{record.resource_type}:{record.resource_id}",
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provider_id="quick_access",
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module_id="quick_access",
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kind="manual_review",
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resource_type=record.resource_type,
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resource_id=record.resource_id,
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title=f"Review {record.title}",
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rationale=(
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"The selected profile is absent or no longer belongs to the exact "
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"tenant, account, and narrowing selectors."
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),
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executable=False,
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)
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def _iso(value: datetime | None) -> str | None:
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aware = _aware(value)
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return aware.isoformat() if aware else None
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def _aware(value: datetime | None) -> datetime | None:
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if value is None or value.tzinfo is not None:
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return value
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return value.replace(tzinfo=timezone.utc)
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def _session(value: object) -> Session:
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if not isinstance(value, Session):
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raise TypeError("Quick Access DSAR requires a SQLAlchemy Session.")
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return value
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def _validate_record(record: DsarRecordRef) -> None:
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if record.provider_id != "quick_access" or record.module_id != "quick_access":
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raise ValueError("Quick Access DSAR cannot plan a foreign provider record.")
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if (
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record.resource_type
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not in {
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"quick_access_personal_profile",
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"quick_access_tenant_attribution",
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}
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or not record.resource_id
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):
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raise ValueError("Quick Access DSAR record identity is invalid.")
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def _validate_action(action: DsarErasureActionRef) -> None:
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if action.provider_id != "quick_access" or action.module_id != "quick_access":
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raise ValueError("Quick Access DSAR cannot execute a foreign provider action.")
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if not action.action_id.startswith("quick_access:"):
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raise ValueError("Quick Access DSAR action identity is invalid.")
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__all__ = ["QUICK_ACCESS_DSAR_CAPABILITY", "QuickAccessDsarProvider"]
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