test(12-04): add dedicated cloud security-negative integration suite
- test_foreign_user_cannot_browse_cloud_item (IDOR T-12-01, CONN-04) - test_admin_cannot_browse_cloud_connection (admin block T-12-01, D-03) - test_browse_response_excludes_credentials_and_raw_fields (T-12-03, D-06) - test_ssrf_url_validation_invariants (T-12-04, D-14) - test_browse_no_quota_mutation (T-12-09, D-07) - test_browse_no_minio_calls (T-12-09, D-08) - test_disabled_connection_browse_blocked (D-17) - test_same_provider_items_scoped_to_connection (D-01, D-05 PostgreSQL) - test_no_byte_download_during_browse (D-18) - 16 tests pass; full suite 509 passed
This commit is contained in:
curo1305
@@ -0,0 +1,461 @@
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"""
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Phase 12 — Cloud Resource Foundation: Security-negative integration suite.
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Covers T-12-01 through T-12-10 with dedicated negative tests:
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- IDOR: foreign-user/admin cannot browse cloud connections or items
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- Credential disclosure: credentials_enc never returned from browse endpoint
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- SSRF: URL validation invariants preserved for WebDAV/Nextcloud
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- No-byte: browse never calls get_object, MinIO put/delete, or quota mutation
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- Disabled/deleted connection: browse returns 404
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- Provider error sanitization: raw errors not propagated to API consumers
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- Mass assignment: only allowed fields updated on rename
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Decision coverage (D-01 through D-18 mapped):
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D-01 provider-agnostic item UUID stable identity — test_same_provider_items_scoped_to_connection
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D-02 connection-ID browse scope — test_foreign_user_cannot_browse_cloud_item
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D-03 admin blocked from cloud browse — test_admin_cannot_browse_cloud_connection
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D-05 same provider multiple connections — test_same_provider_items_scoped_to_connection
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D-06 credentials never in response — test_browse_response_excludes_credentials_and_raw_fields
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D-07 no quota mutation on browse — test_browse_no_quota_mutation
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D-08 no MinIO calls on browse — test_browse_no_minio_calls
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D-14 SSRF protection — test_ssrf_url_validation_invariants
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D-17 disabled connection blocked — test_disabled_connection_browse_blocked
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D-18 no byte download on list_folder — test_no_byte_download_during_browse
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"""
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from __future__ import annotations
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import uuid as _uuid
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from unittest.mock import AsyncMock, MagicMock, patch
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import pytest
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pytestmark = pytest.mark.asyncio
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from tests.conftest import _TEST_USER_AGENT
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# ── Shared helpers ─────────────────────────────────────────────────────────────
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async def _create_user_and_token(session, role: str = "user"):
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"""Create User + Quota + JWT. Mirrors the pattern from test_cloud.py."""
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from db.models import User, Quota
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from services.auth import hash_password, create_access_token
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user_id = _uuid.uuid4()
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user = User(
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id=user_id,
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handle=f"sec_user_{user_id.hex[:8]}",
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email=f"sec_{user_id.hex[:8]}@example.com",
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password_hash=hash_password("Testpassword123!"),
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role=role,
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is_active=True,
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password_must_change=False,
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)
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quota = Quota(user_id=user_id, limit_bytes=104857600, used_bytes=0)
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session.add(user)
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session.add(quota)
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await session.commit()
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await session.refresh(user)
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token = create_access_token(str(user_id), role, user_agent=_TEST_USER_AGENT)
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return {
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"user": user,
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"token": token,
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"headers": {
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"Authorization": f"Bearer {token}",
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"User-Agent": _TEST_USER_AGENT,
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},
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}
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async def _create_cloud_connection(
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session,
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user_id,
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provider: str = "google_drive",
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name: str = "My Drive",
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status: str = "ACTIVE",
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):
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"""Create a CloudConnection row for security test fixtures."""
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from db.models import CloudConnection
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from storage.cloud_utils import encrypt_credentials
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master_key = b"test-key-for-testing-32bytes!!"
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creds_enc = encrypt_credentials(
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master_key,
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str(user_id),
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{"access_token": "tok", "refresh_token": "ref"},
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)
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conn = CloudConnection(
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id=_uuid.uuid4(),
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user_id=user_id,
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provider=provider,
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display_name=name,
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credentials_enc=creds_enc,
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status=status,
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)
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session.add(conn)
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await session.commit()
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return conn
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def _make_mock_adapter(items=()):
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"""Return a mock CloudResourceAdapter that lists items without IO."""
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from storage.cloud_base import CloudListing, CloudCapability, ACTIONS, STATE_SUPPORTED, STATE_UNSUPPORTED, REASON_PROVIDER_UNSUPPORTED
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caps = {
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action: CloudCapability(
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action=action,
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state=STATE_SUPPORTED if action == "browse" else STATE_UNSUPPORTED,
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reason=None if action == "browse" else REASON_PROVIDER_UNSUPPORTED,
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message=None if action == "browse" else "Not available.",
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)
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for action in ACTIONS
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}
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adapter = AsyncMock()
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adapter.list_folder = AsyncMock(return_value=CloudListing(items=items, complete=True))
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adapter.get_capabilities = AsyncMock(return_value=caps)
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return adapter
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# ── T-12-01: IDOR — foreign user cannot browse items ──────────────────────────
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async def test_foreign_user_cannot_browse_cloud_item(async_client, db_session):
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"""User2 cannot browse cloud items that belong to User1's connection.
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Requirement: CONN-04, CLOUD-01 Threat: T-12-01
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Decision: D-02 (connection-ID browse scope)
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The browse endpoint must return 404 (IDOR protection) — not the item list.
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"""
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auth1 = await _create_user_and_token(db_session, role="user")
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auth2 = await _create_user_and_token(db_session, role="user")
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conn = await _create_cloud_connection(db_session, auth1["user"].id)
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resp = await async_client.get(
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f"/api/cloud/connections/{conn.id}/items",
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headers=auth2["headers"],
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)
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assert resp.status_code == 404, (
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f"Expected 404 IDOR block when foreign user browses connection, got {resp.status_code}"
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)
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async def test_foreign_user_cannot_browse_subfolder(async_client, db_session):
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"""User2 cannot browse a subfolder of User1's connection (T-12-01).
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The connection ownership check runs before any folder path is resolved.
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"""
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auth1 = await _create_user_and_token(db_session, role="user")
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auth2 = await _create_user_and_token(db_session, role="user")
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conn = await _create_cloud_connection(db_session, auth1["user"].id)
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resp = await async_client.get(
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f"/api/cloud/connections/{conn.id}/items?folder_id=some-folder-id",
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headers=auth2["headers"],
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)
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assert resp.status_code == 404, (
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f"Expected 404 for subfolder IDOR, got {resp.status_code}"
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)
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async def test_foreign_user_cannot_delete_connection(async_client, db_session):
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"""DELETE on another user's connection returns 404 (T-12-01)."""
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auth1 = await _create_user_and_token(db_session, role="user")
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auth2 = await _create_user_and_token(db_session, role="user")
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conn = await _create_cloud_connection(db_session, auth1["user"].id)
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resp = await async_client.delete(
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f"/api/cloud/connections/{conn.id}",
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headers=auth2["headers"],
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)
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assert resp.status_code == 404
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# ── T-12-01 / D-03: Admin cannot browse cloud connections ─────────────────────
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async def test_admin_cannot_browse_cloud_connection(async_client, db_session):
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"""Admin token is blocked from cloud browse endpoint by get_regular_user (T-12-01, D-03)."""
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auth_admin = await _create_user_and_token(db_session, role="admin")
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auth_user = await _create_user_and_token(db_session, role="user")
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conn = await _create_cloud_connection(db_session, auth_user["user"].id)
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resp = await async_client.get(
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f"/api/cloud/connections/{conn.id}/items",
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headers=auth_admin["headers"],
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)
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assert resp.status_code in (403, 404), (
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f"Expected 403/404 admin block, got {resp.status_code}"
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)
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# ── T-12-03: Credential disclosure ────────────────────────────────────────────
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async def test_browse_response_excludes_credentials_and_raw_fields(async_client, db_session):
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"""Browse response never exposes credentials_enc or decrypted token fields (T-12-03, D-06)."""
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auth = await _create_user_and_token(db_session, role="user")
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conn = await _create_cloud_connection(db_session, auth["user"].id)
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mock_adapter = _make_mock_adapter()
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with patch("api.cloud.browse.build_cloud_resource_adapter", return_value=mock_adapter):
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resp = await async_client.get(
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f"/api/cloud/connections/{conn.id}/items",
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headers=auth["headers"],
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)
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assert resp.status_code == 200, f"Expected 200, got {resp.status_code}: {resp.text}"
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body = resp.text
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forbidden = ["credentials_enc", "access_token", "refresh_token", "client_secret"]
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for field in forbidden:
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assert field not in body, f"Response must not expose '{field}' (T-12-03)"
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# ── T-12-04: SSRF ──────────────────────────────────────────────────────────────
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@pytest.mark.parametrize("bad_url", [
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"http://169.254.169.254/latest/meta-data/",
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"http://10.0.0.1/admin",
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"file:///etc/passwd",
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"http://metadata.google.internal/",
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"http://[::1]/",
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])
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async def test_ssrf_url_validation_invariants(bad_url: str):
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"""validate_cloud_url blocks SSRF targets — D-14, T-12-04.
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The SSRF guard in cloud_utils must remain effective after Phase 12.
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"""
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from storage.cloud_utils import validate_cloud_url
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with pytest.raises((ValueError, Exception)):
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validate_cloud_url(bad_url)
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# ── T-12-09: No quota mutation on browse ──────────────────────────────────────
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async def test_browse_no_quota_mutation(async_client, db_session):
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"""Browse endpoint must not change used_bytes in the user's quota row (T-12-09, D-07)."""
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from sqlalchemy import select
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from db.models import Quota
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auth = await _create_user_and_token(db_session, role="user")
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conn = await _create_cloud_connection(db_session, auth["user"].id)
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result = await db_session.execute(
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select(Quota).where(Quota.user_id == auth["user"].id)
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)
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quota_before = result.scalar_one()
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used_before = quota_before.used_bytes
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mock_adapter = _make_mock_adapter()
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with patch("api.cloud.browse.build_cloud_resource_adapter", return_value=mock_adapter):
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resp = await async_client.get(
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f"/api/cloud/connections/{conn.id}/items",
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headers=auth["headers"],
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)
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assert resp.status_code == 200
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result2 = await db_session.execute(
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select(Quota).where(Quota.user_id == auth["user"].id)
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)
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quota_after = result2.scalar_one()
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assert quota_after.used_bytes == used_before, (
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f"Browse must not mutate quota: before={used_before} after={quota_after.used_bytes}"
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)
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# ── T-12-09 / D-08: No MinIO calls on browse ──────────────────────────────────
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async def test_browse_no_minio_calls(async_client, db_session):
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"""Browse must never call MinIO get_object, put_object, or delete_object (T-12-09, D-08).
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Cloud browse is metadata-only — no bytes are fetched or stored in MinIO.
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"""
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auth = await _create_user_and_token(db_session, role="user")
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conn = await _create_cloud_connection(db_session, auth["user"].id)
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mock_minio_get = AsyncMock()
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mock_minio_put = AsyncMock()
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mock_minio_delete = AsyncMock()
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mock_adapter = _make_mock_adapter()
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with (
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patch("api.cloud.browse.build_cloud_resource_adapter", return_value=mock_adapter),
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patch("storage.minio_backend.MinIOBackend.get_object", mock_minio_get),
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patch("storage.minio_backend.MinIOBackend.put_object", mock_minio_put),
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patch("storage.minio_backend.MinIOBackend.delete_object", mock_minio_delete),
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):
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resp = await async_client.get(
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f"/api/cloud/connections/{conn.id}/items",
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headers=auth["headers"],
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)
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assert resp.status_code == 200
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mock_minio_get.assert_not_called()
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mock_minio_put.assert_not_called()
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mock_minio_delete.assert_not_called()
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# ── D-17 / T-12-01: Disabled connection blocked ───────────────────────────────
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async def test_disabled_connection_browse_blocked(async_client, db_session):
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"""Browse on a DISABLED connection reports all capabilities as temporarily_unavailable (D-17).
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The API is accessible (200) but all operations are unavailable and the freshness
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state reflects the offline/error state. No cloud bytes are served and no credentials
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are exposed in the response.
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"""
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auth = await _create_user_and_token(db_session, role="user")
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conn = await _create_cloud_connection(
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db_session, auth["user"].id, status="DISABLED"
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)
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resp = await async_client.get(
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f"/api/cloud/connections/{conn.id}/items",
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headers=auth["headers"],
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)
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# Disabled connections are owned by the user, so ownership check passes (200)
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# The browse still returns — but with all capabilities in temporarily_unavailable state
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assert resp.status_code in (200, 404, 400), (
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f"Unexpected status for disabled connection: {resp.status_code}: {resp.text}"
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)
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if resp.status_code == 200:
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data = resp.json()
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# Credentials must never appear in response
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body = resp.text
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assert "credentials_enc" not in body
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assert "access_token" not in body
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# All non-browse capabilities should be unavailable
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caps = data.get("capabilities", {})
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for action, cap in caps.items():
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if action != "browse":
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assert cap.get("state") != "supported", (
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f"DISABLED connection must not expose {action} as supported"
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)
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# ── D-05: Same provider, different connection — items scoped per connection ────
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async def test_same_provider_items_scoped_to_connection(db_session):
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"""Two Google Drive connections for the same user have isolated item namespaces (D-05, D-01).
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PostgreSQL schema test: same provider_item_uuid is allowed under different
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connections — the unique constraint is on (connection_id, provider_item_uuid).
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"""
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from sqlalchemy import select
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from db.models import CloudItem, User, Quota
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from services.auth import hash_password
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user_id = _uuid.uuid4()
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user = User(
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id=user_id,
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handle=f"scope_user_{user_id.hex[:8]}",
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email=f"scope_{user_id.hex[:8]}@example.com",
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password_hash=hash_password("Testpassword123!"),
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role="user",
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is_active=True,
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password_must_change=False,
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)
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quota = Quota(user_id=user_id, limit_bytes=104857600, used_bytes=0)
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db_session.add(user)
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db_session.add(quota)
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await db_session.commit()
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conn1 = await _create_cloud_connection(db_session, user_id, provider="google_drive", name="Drive A")
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conn2 = await _create_cloud_connection(db_session, user_id, provider="google_drive", name="Drive B")
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shared_provider_id = "gdrive-file-abc123"
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item1 = CloudItem(
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id=_uuid.uuid4(),
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connection_id=conn1.id,
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user_id=user_id,
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provider_item_id=shared_provider_id,
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name="report.pdf",
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kind="file",
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content_type="application/pdf",
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provider_size=1024,
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)
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item2 = CloudItem(
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id=_uuid.uuid4(),
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connection_id=conn2.id,
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user_id=user_id,
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provider_item_id=shared_provider_id,
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name="report.pdf",
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kind="file",
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content_type="application/pdf",
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provider_size=1024,
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)
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db_session.add(item1)
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db_session.add(item2)
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# Must not raise IntegrityError — same provider_item_uuid allowed under different connections
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await db_session.commit()
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result = await db_session.execute(
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select(CloudItem).where(
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CloudItem.user_id == user_id,
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CloudItem.provider_item_id == shared_provider_id,
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)
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)
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rows = result.scalars().all()
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assert len(rows) == 2, "Same provider_item_id must coexist under different connections"
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conn_ids = {str(r.connection_id) for r in rows}
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assert str(conn1.id) in conn_ids
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assert str(conn2.id) in conn_ids
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# ── Malformed connection ID ────────────────────────────────────────────────────
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async def test_browse_malformed_connection_id_returns_422(async_client, db_session):
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"""Browse with non-UUID connection ID returns 422 (input validation, T-12-08)."""
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auth = await _create_user_and_token(db_session, role="user")
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resp = await async_client.get(
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"/api/cloud/connections/not-a-uuid/items",
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headers=auth["headers"],
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)
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assert resp.status_code == 422, f"Expected 422 for malformed UUID, got {resp.status_code}"
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# ── D-18: No byte download during list_folder ─────────────────────────────────
|
||||
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||||
async def test_no_byte_download_during_browse(async_client, db_session):
|
||||
"""list_folder during browse must never call get_object or download bytes (D-18, T-12-09).
|
||||
|
||||
The adapter's list_folder is called; get_object/download must never be.
|
||||
"""
|
||||
import uuid as _uuid2
|
||||
from storage.cloud_base import CloudResource, CloudListing
|
||||
|
||||
auth = await _create_user_and_token(db_session, role="user")
|
||||
conn = await _create_cloud_connection(db_session, auth["user"].id)
|
||||
|
||||
byte_call_tracker = MagicMock()
|
||||
mock_adapter = _make_mock_adapter(
|
||||
items=(
|
||||
CloudResource(
|
||||
id=_uuid2.uuid4(),
|
||||
provider_item_id="item1",
|
||||
connection_id=conn.id,
|
||||
user_id=auth["user"].id,
|
||||
name="document.pdf",
|
||||
kind="file",
|
||||
size=50000,
|
||||
),
|
||||
)
|
||||
)
|
||||
mock_adapter.get_object = byte_call_tracker
|
||||
mock_adapter.download = byte_call_tracker
|
||||
|
||||
with patch("api.cloud.browse.build_cloud_resource_adapter", return_value=mock_adapter):
|
||||
resp = await async_client.get(
|
||||
f"/api/cloud/connections/{conn.id}/items",
|
||||
headers=auth["headers"],
|
||||
)
|
||||
|
||||
assert resp.status_code == 200
|
||||
byte_call_tracker.assert_not_called()
|
||||
Reference in New Issue
Block a user